EP0296547A1 - Procédé et dispositif pour la jonction automatique d'un ruban de fibres discontinues - Google Patents

Procédé et dispositif pour la jonction automatique d'un ruban de fibres discontinues Download PDF

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Publication number
EP0296547A1
EP0296547A1 EP88109893A EP88109893A EP0296547A1 EP 0296547 A1 EP0296547 A1 EP 0296547A1 EP 88109893 A EP88109893 A EP 88109893A EP 88109893 A EP88109893 A EP 88109893A EP 0296547 A1 EP0296547 A1 EP 0296547A1
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EP
European Patent Office
Prior art keywords
feed
staple fiber
guide
guides
tape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88109893A
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German (de)
English (en)
Other versions
EP0296547B1 (fr
Inventor
Werner Gerhard Hoeber
Isidor Fritschi
Emil Briner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cambio Ragione Sociale rieter Ingolstadt Spinnerei
Original Assignee
Schubert und Salzer Maschinenfabrik AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Publication of EP0296547A1 publication Critical patent/EP0296547A1/fr
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Anticipated expiration legal-status Critical
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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H13/00—Other common constructional features, details or accessories
    • D01H13/04—Guides for slivers, rovings, or yarns; Smoothing dies
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H15/00—Piecing arrangements ; Automatic end-finding, e.g. by suction and reverse package rotation; Devices for temporarily storing yarn during piecing
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H9/00—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine
    • D01H9/005—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving
    • D01H9/008—Arrangements for replacing or removing bobbins, cores, receptacles, or completed packages at paying-out or take-up stations ; Combination of spinning-winding machine for removing empty packages or cans and replacing by completed (full) packages or cans at paying-out stations; also combined with piecing of the roving for cans

Definitions

  • the present invention relates to a method for automatically applying a staple fiber tape to a textile machine having a feed device, in which two staple fiber tapes are inserted in two guides, of which the first guide assumes a feed position and the first staple fiber tape fed to the feed device guides while the second Guide holds the second staple fiber band in a standby position, and in which, when the supply of the first staple fiber band to the feed device is interrupted, the second staple fiber band is brought into the feed position and fed to the feed device, and to a device for carrying out this method.
  • the spinning machines of this type which are known today have the disadvantage that when the original, which can be a sliver to be removed from a can or a sliver supplied by a spool, is used up, the insertion of a new package, ie a full can or a full spool, and the insertion of the ribbon or the fuse into the spinning station is time-consuming. The resulting standstill of the spinning station or the entire spinning machine considerable cost.
  • the downtimes could be eliminated to a certain extent by the provision of operating personnel who would be ready at any time to change immediately when a pack that has become empty is displayed. However, this would also result in high costs.
  • a device is also already known, in which two guides are provided, of which the first guide is assigned to the staple fiber band that is fed to the feeding device and the second guide is to the staple fiber band that is in the ready position (DE-PS 922,579) . Both tours are stationary. After the staple fiber sliver fed to the feed device has run out, the front end of the second staple fiber sliver which is in the ready position is released, which thereby reaches the position which the staple fiber sliver which had meanwhile expired had previously assumed.
  • This object is achieved in that when the supply of the first staple fiber band to the feed device is interrupted, the empty first guide is brought from the feed position to a standby position and at the same time the second guide is brought into the feed position together with the second staple fiber band inserted therein, whereupon the first one , a staple fiber tape is now reinserted in a standby position.
  • the two guides are of equal rank and alternately fulfill the task of feeding a staple fiber band to the feed device or else to keep a staple fiber band in a standby position, these tasks being exchanged by a change of location of the two guides. Since no guidance is only used to feed or only provide a staple fiber tape, this process of the automatic tape feed can be repeated as often as desired.
  • a method has proven to be particularly advantageous according to which the standby position, into which the respectively empty guide for inserting a new staple fiber sliver is brought, is alternately provided on one or the other side of the feed position. This enables the use of a simple, linearly movable device which can also be used in restricted spaces.
  • a particularly simple design of the device is made possible if it is provided in an advantageous embodiment of the method according to the invention that the guides are moved parallel to the axis of this delivery roller.
  • Unintentionally touching the staple fiber tape in the standby position can possibly Slip something or completely out of the guide so that later automatic feeding of the staple fiber tape to the feed device is not possible.
  • the staple fiber band is expediently secured in the inserted position after the insertion process has been completed.
  • the method according to the invention can be used in a particularly expedient and space-saving manner if a common presentation of a third staple fiber tape is provided for two adjacent feed devices, these feed devices being supplied with a new staple fiber tape at different times in such a way that when a feed device a staple fiber band is newly fed, the staple fiber band of the other feed device has already been fed about half of the feed device, that the leaking staple fiber band is replaced by a new one and is fed to the feed device on which the previously fed staple fiber band next runs out. In this way, a common reserve band is sufficient for two feed devices.
  • the guides are switched over so early that the beginning of the new staple fiber band lie on the end of the outgoing staple fiber band and together with this can get into the feed device.
  • an interruption in the work process is avoided.
  • the beginning of the new staple fiber band is expediently not only placed on the end of the running staple fiber band, but this end is connected to the beginning of the new staple fiber band before it is introduced into the feed device. In this way, the continuity of the work process is achieved with greater certainty than when simply stacking the two staple fiber tapes.
  • the new staple fiber band is expediently only applied after a thread break has occurred, whereupon after the new staple fiber band has been applied, the overlapping point of the slivers is fed to the open-end spinning device and out of it again dissipated and then re-spun.
  • the point of overlap of the slivers which inevitably represents an irregularity in the further processing process, is eliminated in this way, so that the spun thread consists only of sections of the slivers which have the desired cross section.
  • the two guides are connected to one another in terms of movement in such a way that when one guide moves from a supply position into a ready position, the other guide can be brought from a ready position into a supply position.
  • each guide alternately guides the staple fiber band in the feed position or the staple fiber band in the standby position.
  • a standby position is preferably provided on both sides of the feed position, and one guide can be brought alternately into one standby position or the feed position and the other guide can be brought alternately into the feed position or the other standby position.
  • a simple construction is achieved if the guides can be moved parallel to the axis of a feed roller.
  • the two guides are attached to a common body that can be pivoted about an axis and can be brought alternately into a feed position or into a standby position by pivoting movements of the body about the axis.
  • the feed and standby positions are advantageously arranged diametrically opposite one another with respect to the axis and thus the two guides can be pivoted between their feed and standby positions by pivoting movements of 180 °.
  • the exit point of the guide located in its feed position is located directly in front of the converging space in front of a feed roller and the distance of this guide from the feed roller by moving the body is changeable.
  • the body is expediently retractable and can be advanced in the direction parallel to the axis. It has proven to be advantageous if the body can be tilted about a second axis perpendicular to the axis mentioned.
  • the guides are firmly connected to a feed trough cooperating with the feed roller and can be moved into their feed and standby positions with the feed trough.
  • a feed trough cooperating with the feed roller is provided in a stationary manner and is biased against this feed roller by means of an elastic means.
  • the feed trough advantageously has guide ramps which, when the guides are changed, serve to guide the sliver starting pieces protruding from the guides and are curved downwards away from the nip point with the feed roller.
  • the exit point of the guide located in its feed position is located directly in front of the converging space in front of the inlet cylinder and a pivotable pressure roller, which is biased against the latter, of a feed device forming part of a drafting arrangement.
  • a monitoring device for monitoring the guide in the ready position for the presence of a staple fiber ribbon and for triggering a signal in the absence of a staple fiber ribbon. If a maintenance device which can be moved along a plurality of belt feed points is provided, the monitoring device is preferably connected to a requesting device for the maintenance device, which can have a switching device for the two guides. So that a new belt can be inserted economically into the guide in its ready position, the maintenance device advantageously has a belt application device.
  • the textile machine is designed as a draw frame with a plurality of belt feeds, with a first and a second guide each being provided in front of the several belt feeders which are jointly assigned to the feed device and which can alternately be brought into a feed or standby position.
  • a new belt can be applied to each belt feeder at any time independently of the other belt feeders.
  • the operator then has time to calmly insert a new staple fiber tape into the empty guides that are in the ready position.
  • the textile machine is designed as an open-end spinning machine and has a plurality of spinning positions next to one another, each with a feed device, a first and a second guide being provided in front of each feed device, which are alternately in a feed or Ready position can be brought.
  • the invention is particularly advantageous in a draw frame and in an open-end spinning machine, it can also be used advantageously in other textile machines which process a staple fiber strip.
  • “Staple fiber tape” in the sense of the invention is not only to be understood as an untwisted fiber tape, but also a tape with a slight twist such as a fuse, etc.
  • the invention enables that when the template on the textile machine is used up, an automatic introduction of a reserve or standby belt into the spinning or processing or machining process takes place without any noticeable loss of time, so that the textile machine without noticeable loss of time, ie immediately after the intended one Automat or switch that has inserted the reserve belt can continue to work.
  • This loss of time corresponds in the order of magnitude to the time required for the automatic removal of a thread break in the known spinning machines.
  • the time period that is to say a great deal of time, is available until the spare tape introduced into the production or the spare packaging becomes empty.
  • This is particularly valuable in automatic machines because it means that only a small number of operating personnel is required. For example, this method of working allows long, low-operator night shifts to be carried out, in which the operating personnel only have to take on monitoring functions, ie do not perceive any direct interventions in the work process.
  • the invention is primarily advantageous for spinning based on ring spinning machines, rotor and friction processes and air jet spinning, but can also be used in other textile machines, e.g. Stretch, find application.
  • a staple fiber band 11 forming a template is guided through a channel 12 of a guide 13.
  • the exit point of the channel 12 is in the immediate vicinity of a feed roller 14, i.e. immediately in front of the converging space of this feed roller.
  • This, together with a feed trough 15, serves to transport the staple fiber band 11 to a dissolving roller 16 forming a draft element.
  • a fiber feed channel 17 serves to forward the fibers, which have been broken up by means of the roller 16, to a rotation-imparting element or spinning rotor, not shown.
  • the guides 13 and the feed trough 15 form a structural unit.
  • a second guide 19 with a second channel 18 and a second feed trough 20 are also provided.
  • a staple fiber band, not shown, which forms a further template is held in channel 18.
  • the guide 19 with the feed trough 20 are held together with the guide 13 and the feed trough 15 by an annular body 21 and carried by a shaft 23 which can be pivoted about the axis 22. 1 and 2, the guide 13 is in the feed position and the guide 19 in the standby position. The explanation of these designations follows in the further course of the description.
  • a monitoring device 24 serves to determine the presence of the same and, if appropriate, to generate a signal in the absence thereof.
  • the guides 13, 19 with the feed troughs 15, 20 can also be displaced in the direction parallel to the axis 22, according to FIG. 1, to the left by means not shown, and can thus be retracted into the position indicated by dash-dotted lines and pushed back into the starting position drawn with solid lines .
  • staple fiber sliver is continuously moved between feed roller 14 and feed trough 15, which is removed from the production package and fed via guide 13 to the opening roller 16, which operates as a drafting element.
  • the guide 13 is thus in the drawn working phase in a feed position. If the staple fiber sliver of the production package has been used up sufficiently, the monitoring element 24 supplies a signal by which in a first step the guides 13, 19 with the feed troughs 15, 20 are withdrawn in the direction parallel to the axis 22 (to the left according to FIG. 1).
  • the shaft 23 is then pivoted through 180 ° in a second step.
  • the guides 13, 19 with the feed troughs 15, 20 are parallel to the axis 22 again (to the right in FIG.
  • Fig. 3 is a section along the line III ... III of Fig. 4, again two guides 13, 19 are provided with the channels 12 and 18, respectively. They are made from a single piece and can be moved parallel to the axis of the feed roller 14 and to the side surfaces of a feed trough 25.
  • the feed trough 13 is in the feed position and the guide 19 in the standby position.
  • the guide 13 is supplied with the staple fiber band in a production pack and the guide 19 with the staple fiber band in a ready pack.
  • the guides 13 and 19 are arranged directly and with minimal space on one side surface of the feed trough 25.
  • the latter has two guide ramps 26, which advantageously arch downwards towards their free ends to ensure guiding of sliver ends hanging out on the exit side of the channels 12, 18.
  • the feed trough 25 there is a feed roller 14 which, together with the feed trough 25, serves to move a staple fiber strip 11, which is guided through the channel 12 and is not shown in FIG. 4, to a dissolving roller 16.
  • a feed roller 14 which, together with the feed trough 25, serves to move a staple fiber strip 11, which is guided through the channel 12 and is not shown in FIG. 4, to a dissolving roller 16.
  • an elastic organ e.g. a spring 27
  • the feed trough 25 is biased against the feed roller 14.
  • the staple fiber band is broken up into fibers by the opening roller 16, which fibers are transported into a spinning rotor (not shown).
  • the guides 13, 19 connected in terms of movement are moved in such a way that the guide 19 into the feed position and the guide 13 into the dashed line drawn position 35, which is a standby position for the guide 13 arrives.
  • the staple fiber band held by the channel 18 and supplied by the standby or second can is thus detected, possibly with the aid of a conveyor device (not shown) inside the guide, and the spinning process continues after a brief interruption.
  • the original production package, which is now empty, must be replaced by a new one and the sliver present in this new package must be introduced into the channel 12 and kept in it. There is again a very long period of time available to carry out these latter two steps, which is sufficient for all practical needs.
  • the guides 13, 19 are in turn returned to their original position shown. After the second empty can has been replaced by a full one, the starting piece of the fiber sliver to be removed from the latter must be inserted into and held in the channel 18.
  • FIGS. 3 and 4 show, a standby position is provided on both sides of the feed position, which is alternately assumed by one of the guides 13 and 19.
  • This enables very simple movements for the guides 13 and 19, in particular also linear movements, in particular parallel to the axis of the delivery roller 14, in order to avoid retraction or feed movements transverse to this axis.
  • FIGS. 3 and 4 it can be seen that in the embodiment of FIGS. 3 and 4 only a longitudinal movement of the guides 13 and 19 is necessary for a band change, while in the example described first a retracting, a pivoting movement and a forward movement of the guides 13, 19 and the feed troughs 15, 20 take place.
  • FIGS. 1 and 2 with the retracting and forward movement of the guides 13 and 19 with the feed troughs 15 and 20 has the advantage that between the guides 13 and 19 on the one hand and the feed troughs 15 and 20 on the other hand there is no gap or space in which fibers could get caught.
  • the guide to the nip point of feed roller 14 and feed trough 15 and 20, mediated by channels 12 and 18, is shorter than in the embodiment with separate, non-pivotable feed trough 15 and 20.
  • the embodiment according to FIGS. 3, 4 and the embodiment according to FIGS. 1, 2 characterized by omitting the feed trough 20 and having a non-pivoting feed trough 15 has the advantage that the feed trough 15 or 25 is always exactly the same, mutual adjustment Feed roller 14 is present.
  • the conditions for the tape feed to the opening roller 16 thus always remain constant regardless of which of the guides 13, 19 is in the feed position. This ensures a constant thread quality.
  • the retraction movement shown in broken lines in FIG. 1 is not necessary. This means a reduction in the time required for changing the belt and a simpler construction of the spinning unit. Depending on the circumstances, one or the other embodiment will be preferred.
  • the example in FIGS. 5, 6 in turn has two guides 13, 19 provided with channels 12 and 18, respectively.
  • the guide 13 is in a feed position and the guide 19 in a standby position.
  • the guide 13 located in the feed position in turn forms with the feed trough 15 a structural unit.
  • the guide 19 also forms a structural unit with a feed trough which is not visible in FIG. 5.
  • the feed trough 15 located in the feed position works together with a feed roller 14 in order to feed fiber sliver to the opening roller 16, not shown in FIG. 6, during operation.
  • the guides 13, 19 are located on a swivel body 30.
  • This body 30 is pivotable about a shaft 31 in a position shown in dash-dotted lines in FIG. 6 'for the purpose of bringing the guides 13, 19 optionally into their feed position and their ready position.
  • the body 30 can also be tilted together with the shaft 31 about the axis of a further shaft 32 into the position 30 ⁇ shown in broken lines in FIG. 5.
  • the execution of swiveling movements around the axis 31 can be carried out, for example, by means of a threaded spindle, i.e. a rotating worm 33 and a worm wheel 34 driven thereby.
  • the body 30 is then tilted back into its original position about the axis of the shaft 32, as a result of which a feed trough belonging to the guide 19 interacts with the feed roller 14. During this movement, the guide 13 is moved into its standby position, shown in broken lines in FIG. 6. A new staple fiber band is thus attached to the feed roller 14.
  • the guides 13 and 19 are always connected to one another in terms of movement so that when one guide moves from a standby position into the feed position, the other guide reaches the same or a different standby position.
  • the guides can be non-positively connected to one another, possibly also integrated into a component, but it is also sufficient if such a synchronous movement is achieved in the case of guides which are independent of one another solely by corresponding control of separate drives.
  • a guide 36 is provided for a template only shown in FIG. 7, which is formed by a staple fiber ribbon or a sliver 37.
  • the guide 36 is in its feed position.
  • a second guide 38 is in its standby position.
  • the guides 36, 38 are held by a carrier plate 39. Both have a channel 40 through which a template is drawn.
  • drive rollers 41, 42, 43 and pressure rollers 44, 45, 46 biased against each of them are provided.
  • the rollers 41 and 44 are rotatable about the axes 51 and 52 shown in FIG. 8.
  • the rollers 42 and 45 serve to drive the straps 47 of a double apron drafting system.
  • the drafting zone or drafting element shown is the pre-drafting zone between the rollers 41, 44 and 42, 45 and the main drafting zone between the rollers 42, 45 and 43, 46.
  • the rotation of a spindle 48 operating as a rotation-imparting element causes a twisting of the fiber material emerging from the rollers 43, 46, i.e. the emergence of a thread and a rotation of a runner 49 around the spindle 48 and thus with the formation of a balloon 50 the winding of the thread onto the spindle 48.
  • the carrier plate 39 together with the guides 36, 38 can be displaced parallel to the axes 51, 52, whereby either the guide 36 or the guide 38 comes to lie in the feed position via the pressure roller 44.
  • a spinning unit is assigned two sliver coils, the fuse of the first coil (feed coil) being inserted into the guide 36 in the feed position and the fuse of the second coil (standby coil) into the guide 38 which is in the standby position.
  • the guide 36 is moved into the ready position shown in phantom in FIG. 8 and at the same time the guide 38 is moved into the feed position, so that the spinning operation is restarted fully automatically.
  • known apparatus for the automatic connection of the fuses e.g.
  • the guides must be offset so early that the beginning of the new staple fiber band can lie on the end of the outgoing staple fiber band and can get into the feed device together with it. You then have a large amount of time to replace the sleeve of the original feed trough with a full spool.
  • FIG. 9 shows a spool 54 assigned to a first of two adjacent spinning units and a spool 55 assigned to the second of these adjacent spinning units.
  • a third spool 56 forming a standby or reserve spool is provided.
  • the fuse of the coil 54 is guided to a guide 57 and the fuse of the coil 56 to a guide 58.
  • the guide 57 is in the feed position and the guide 58 is in its ready position.
  • the guide 57 can be brought into a standby position 59.
  • the second spinning unit comprises guides 60, 61, of which the guide 60 is in its feed position and the guide 61 is in its ready position.
  • the guide 60 can be brought into a standby position 62.
  • the fuse of the coil 55 is attached to the guide 60.
  • no fuse is attached to the guide 61.
  • the spool 54 is half used up at the start of the spinning process. This is indicated by the indication "1/2".
  • the coil 55 is, as indicated by the indication "2/2", fully wound with a fuse.
  • the coil 54 in the ready position with the ready template is fully wound and serves as a reserve coil, which is expressed by “R”.
  • the bobbin 55 is used up, whereupon the second spinning unit comprising the guides 60, 61 is switched off and the guides 60, 61 are actuated.
  • the guide 61 thus comes into the feed position and the guide 60 into the ready position 62.
  • the now empty bobbin 55 must be replaced by a full bobbin 64, which now forms a ready-to-use pack, and its fuse to the guide 57 can be applied.
  • the resulting state is shown in Fig. 9c.
  • a common third belt template is provided for the feeding devices of two adjacent workplaces.
  • the two feed devices are each supplied with a new staple fiber tape at different times in such a way that when a feed device is fed with a new staple fiber tape, the staple fiber tape of the other feed device has only been processed about halfway.
  • this new ribbon is delivered to the feed device on which the staple fiber ribbon next runs out.
  • the newly added pack or reserve spool is connected with every change to the ready position of the pair of guides for which a production pack is prepared which has a template corresponding to half of a full production pack.
  • the present invention serves, in particular, for the automatic insertion of a new template when the template which is in operation has been used up.
  • the device according to the invention also immediately changes the guide in the ready position into the operating position in the manner described, whereupon the spinning process continues, possibly after a brief interruption.
  • the distance between the guide 13 and the feed roller 14 has been drawn large. In principle, this distance can be chosen to be smaller, especially if the guide 13 carries the feed trough 15 at the same time, as is shown in FIGS. 1 and 2.
  • the distance between the guide 13 or 15 and the feed roller 14 is variable in that the guides 13 and 14 are not only displaceable parallel to the axis of the feed roller 14, but also perpendicular to it. This is indicated in Fig. 10 by the double arrows 65 shown crosswise.
  • the two guides 13 and 19 are non-positively connected to one another by a connecting piece 66.
  • a drive 86 which, as mentioned, can be moved in each of the four directions shown by the double arrows 65, is connected to this connecting piece 66 via a drive device 85, which is only indicated by dashed lines.
  • the guides 13 and 15 can be removed from the feed roller 14 before they are moved parallel to the feed roller 14, then moved parallel to the axis of the feed roller 14 and then again approached the feed roller 14.
  • the channels 12 and 18 have a plurality of conically tapering longitudinal sections 67 and 68 or 69 and 70 in the pulling direction, which make it more difficult for the sliver 11 to slide back without, however, impairing the insertion of the sliver 11.
  • each guide 13 and 19 in the direction of the tape insertion side has an extension 71 or 72 with which one end of a stationary angle lever 73 or 74 cooperates.
  • the other end of the angle lever 73 or 74 is acted upon by an elastic element, for example a compression spring 75 or 76, which is supported in a suitable manner on a stationary support 77 or 78.
  • an elastic element for example a compression spring 75 or 76
  • This bearing 79 or 80 each has a stop 81 or 82, which cooperates with the end of the angle lever 73 or 74 facing the compression spring 75 or 76, in order to limit its maximum swivel path caused by the compression spring 75 or 76 .
  • the angle lever 73 or 74 cooperates with the extension 71 or 72 of the guide 13 or 19 in the manner of a clamp in order to secure the sliver 11 in the guide 13 or 19 against unintentional slipping out or pulling out.
  • the angle levers 73 and 74 are arranged in relation to the guides 13 and 19 in such a way that they secure the staple fiber band 11 which is in the ready position and which release the staple fiber band 11 which is in the feed position.
  • the staple fiber band 11 fed to the feed roller 14 from a can 83 is released, while the staple fiber band coming from a can 84 and inserted into the guide 19 is clamped by the angle lever 74 and thereby secured.
  • the monitoring element 24 supplies a signal to a control device 87 which, by correspondingly controlling the drive 86 (see double arrow 65), brings the guide 13 into the other ready position, shown in broken lines, in which the angle lever 73 bears against the extension 71 of the guide 13 .
  • the guide 19 moves from the first standby position shown into the feed position, which is selected such that the staple fiber sliver 11 removed from the can 84 safely enters the feed area of the feed roller 14 and is fed to the opening roller 16.
  • the angle levers 73 and 74 are each assigned a monitoring element 88 and 89, which are actuated by the angle levers 73 and 74 when there is no staple fiber band 11 in the clamping area of the angle levers 73 and 74. If, on the other hand, a staple fiber tape is inserted in a guide (see guide 19), the angle lever is pivoted (see angle lever 74) and the associated monitoring device (see monitoring device 89) is actuated.
  • the actuation or non-actuation of the monitoring members 88 and 89 triggers a corresponding signal which is reported to a control device 90.
  • the control device only takes into account the signal of the monitoring member 88 or 89 in which a guide 13 or 19 is in the ready position.
  • control device 90 is connected to the control device 87 in terms of control or, alternatively, is integrated into the control device 87.
  • the control device 90 is connected to a tape application device 91, which is designed and operates in a known manner (see, for example, DE-OS 2,911,744).
  • the tape application device 91 carries an arm 92 which, when the staple fiber tape 11 is inserted into the guide 13 or 19, comes to rest against the arm of the angle lever 73 or 74 acted upon by the spring 75 or 76 and thus lifts off the monitoring element 88 or 89. At the same time, the other arm of the angle lever 73 or 74 is lifted from the extension 71 or 72 of the guide 13 or 19, so that the channel 12 or 18 of the guide 13 or 19 is released.
  • the tape application device 91 can, if necessary, also perform a movement relative to the arm 92.
  • Fig. 10 shows the tape application device 91 with the arm 92 shortly after inserting the staple fiber band 11 in the guide 19. Due to the strength of the staple fiber band 11, the angle lever 74 remains pivoted so far even after release by the arm 92, which has already been somewhat retracted, that the Monitoring member 89 is not actuated again, but the inserted staple fiber band 11 is clamped by the angle lever 74.
  • the control device 90 triggers the insertion of a new staple fiber band 11 into the empty guide 13. For this purpose, it causes, in a manner not shown, that the tape application device 91 with the arm 92 comes into the position 91 or 92 'and picks up staple fiber tape from a jug (not shown) which has now been provided and in which the guide 13 in the ready position 13' is inserted .
  • the channel 12 is released for the insertion of the staple fiber band 11. Subsequently, the tape application device 91 is withdrawn, the applied staple fiber tape 11 being retained in the channel 12 by the shape thereof. If the arm 92 is far enough from the angle lever 73, then this engages the staple fiber band 11 and additionally secures it in its position.
  • Fig. 12 shows a spinning machine 1 which e.g. is designed as an open-end spinning machine and has a plurality of spinning stations 2. These spinning stations 2 each have a feed device with a feed roller 14 each and are connected via a manifold 3 to a control device 4, which is connected via a signal line 5 to a maintenance device 6 which can be moved along the spinning machine 1 (see double arrow 7).
  • a control device 4 which is connected via a signal line 5 to a maintenance device 6 which can be moved along the spinning machine 1 (see double arrow 7).
  • Each spinning station 2 is equipped with guides 13 and 19 which have been omitted in FIG. 12 for the sake of clarity.
  • the guides 13 and 19 are arranged in front of the feed roller 14 and can alternately be brought into a feed position and into a standby position.
  • Monitoring devices are also provided, which are also not shown in FIG. 12 for the sake of clarity. However, the arrangement is made in a manner analogous to the described embodiments so that the absence of a staple fiber band is recorded at each spinning station 2.
  • the individual spinning stations 2 are queried in succession by a clock generator (not shown) of the control device 4.
  • this is reported by the control device 4 to the maintenance device 6, which carries a tape application device (not shown) with it.
  • the drive device of the maintenance device 6 sets the maintenance device 6 - unless it is currently carrying out maintenance work and can only store the need - in motion and brings it to the relevant spinning station 2, where it is in the manner described the application of a new staple fiber band 11 to the meantime empty guide 13 or 19 performs.
  • each spinning station 2 has a signal lamp 8 which lights up when there is no staple fiber band 11. This will be discussed in detail later in connection with FIG. 11.
  • the maintenance device 6, which can be moved along the spinning machine 1, is equipped with a sensor 9, which stops the maintenance device 6 when it reaches a luminous signal lamp 8, which then applies a new staple fiber band 11 in the manner described.
  • the feeding of the beginning of the band of the newly fed staple fiber band is combined with a cleaning of the open-end spinning device.
  • the fiber supply is first switched on only briefly, the spinning device is cleaned in a known manner, the initially fed fibers are removed again from the spinning device, and only then is the usual piecing carried out with the band supply and thus the fiber supply being switched on again.
  • FIG. 11 shows, for example, a guide element 93, in which the guides 13 and 19 are integrated and which is connected to a drive 86 via the drive device 85.
  • the guide member 93 can be moved either only in the direction of the double arrow 173 or in the direction of the double arrow 65 (see FIG. 10), so that the guide 13 or 19 is as close as possible to the feed roller 14.
  • a limit switch 94 or 95 which is connected to a control device 96 or 97, with which the signal lamp 8 or another signal lamp 98 is also connected.
  • a second limit switch 99 or 100 is connected to each control device 96 or 97.
  • the signal lamp 8 and also the signal lamp 98 - which was not shown in FIG. 13 for the sake of clarity - indicates the absence of a staple fiber band 11 and thus causes the passing maintenance device 6 to stop.
  • the signal lamp 8 is switched on by the movement of the guide element 93 the position shown with a continuous line in the dashed position 93 ', in which the limit switch 94 is actuated. As a result, current reaches control device 96, which causes signal lamp 8 to light up.
  • the limit switch 99 or 100 can also be operated by hand after the application of a new staple fiber band.
  • the two limit switches 94 and 95 can also be connected to one and the same control device 96 and, via this, to a single signal lamp 8, which is switched off by the limit switch 99 after the tape application process has been carried out (see FIG. 14).
  • a further signal lamp 101 can also be provided, which is brought to light by the limit switch 94 or 95.
  • This signal lamp is intended to indicate to the operator that a pot has run empty and must be replaced by a full one. If the empty jug has been replaced by a full jug, the operator actuates a further limit switch 102, whereby the signal lamp 101 is extinguished. If an automatic device for replacing the empty cans with full cans is provided, the limit switch 102 is actuated from this device.
  • FIG. 15 A further modification of the device according to the invention is shown in FIG. 15.
  • the staple fiber tape 11 is removed from a can 83 and held in the scanning area of a monitoring element 24 by two guides 103 and 104.
  • the guides 103 and 104 are formed laterally open in the preferred form shown to enable lateral threading of the staple fiber band 11 by corresponding movements of the band application device 91, and are so far in front of the feed device that the changing of the leaking staple fiber band to a new one submitted staple fiber tape can also be done without interrupting the work process, if desired.
  • FIG. 15 shows on the maintenance device 6 a drive device 105 which can be moved relative to the maintenance device 6 parallel to its direction of movement and is part of a switching device for the two guides 13 and 19 or a common guide element 93.
  • This drive device 105 carries a swivel arm 106 with a driving lug 107 which can be brought into engagement in a corresponding recess (not shown) in the guide member 93 and is carried along when the drive device 105 moves.
  • a swivel drive 108 is also arranged on the drive device 105, which is designed, for example, as an electro-magnet and whose armature is articulated to the swivel arm 106 via a coupling 109.
  • the swivel arm 106 is first lowered by the swivel drive 108.
  • a control device also not shown, uses a pushbutton (not shown) to determine whether the driver nose 107 is immersed in the not shown recess of the guide element 93 or not. At this time, the swivel arm 106 is in one of its two end positions.
  • the swivel arm 106 is brought into its other end position by means of the swivel drive 105, where the driver nose 107 dips into the recess (not shown) in the guide member 93.
  • the control device mentioned is indicated that the drive device 105 is in its starting position for switching the guide member 93.
  • the drive device 105 now executes the offset movement for feeding the new sliver, in which the channel 12 or 18, in which the reserve belt is located, is brought into the feed position.
  • the swivel arm 106 can also carry out a retracting and advancing movement or also a swiveling back and forward swiveling movement in connection with the described offset movement, as has already been described in connection with FIGS. 1 to 4 or 5 and 6.
  • Automatic tape application is not only possible on spinning machines such as open-end or ring spinning machines, but also on other textile machines in which staple fiber tapes are processed or processed. As already mentioned, such a tape can be placed in cans or presented in the form of coils etc.
  • a draw frame 110 with several belt feeds and a common feed device is provided as a textile machine. 16 only a part of this route 110 is shown.
  • the six slivers to be drawn are taken from six cans 111, 112, 113, 114, 115 and 116 and fed to the drafting device 117.
  • Of these tapes only the first to fourth and the sixth tapes 137, 138, 139, 140 and 141 can be seen, since the fifth tape has run out and the corresponding can 115 is empty.
  • the slivers are monitored in the drafting system 117 or in front of it with the aid of six band monitors 118, 119, 120, 121, 122 and 123.
  • Each guide member 124 to 129 has two channels 12 and 18 each for guiding a first sliver in the feed position and for receiving and guiding a second sliver in a standby position.
  • Each channel 12 or 18 can alternately be brought into a feed or standby position.
  • a second set of cans 131, 132, 133, 134, 135 and 136 is provided for slivers 142, 143, 144, 145, 146 and 147.
  • Feed rollers 148 to 159 are provided for feeding the fiber slivers. Only one feed roller is driven from each pair of feed rollers 148/149, 150/151, 152/153, 154/155, 156/157 and 158/159, the selection of which of the two feed rollers is driven or stopped in Depending on the position of the guide member 124, 125, 126, 127, 128 and 129 takes place.
  • the slivers 137 to 147 are deflected between the feed rollers 148 to 159 and the guide members 124 to 129 with the aid of deflection rollers 160 to 171, one deflection roller of each pair of deflection rollers 160/161, 162/163, 164/165, 166/167 , 168/169 and 170/171 above and a deflection roller is arranged below a separating plate 172.
  • This separating plate keeps the fiber tapes 137 to 141 of the cans 111 to 116 separated from the fiber tapes 142 to 147 of the cans 131 to 136 between the feed rollers 148 to 159 and the guide members 124 to 129.
  • the guide members 124 to 127 and 129 are in their one end position, in which they each feed a sliver 137 to 141 guided above the separating plate 172 to the drafting system 117.
  • the guide member 128, on the other hand, is in its other end position, in which it feeds the sliver 146 guided below the separating plate 172 to the drafting system 117.
  • a second sliver 142 to 145 and 147 has already been inserted into the guide members 124 to 127 and 129 and is now in the ready position.
  • the sliver must be reintroduced after the can 115 has been replaced by a new can. This can be done by hand or with the help of a tape application device, not shown.
  • the empty cans can be replaced during operation. If adjacent outer cans are not too close to one another, this is also possible without difficulty with cans 131 to 136, especially since these can also be shifted somewhat to the side for changing cans.
  • belt monitors can be arranged in the vicinity of the feed rollers 148 to 159. Since these respond earlier than the band monitors 118 to 123 shown, a band change can also be controlled with the aid of these band monitors, not shown, in such a way that the end of the band and the beginning of the band overlap and a thread breakage is prevented.
EP88109893A 1987-06-24 1988-06-22 Procédé et dispositif pour la jonction automatique d'un ruban de fibres discontinues Expired - Lifetime EP0296547B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH237787 1987-06-24
CH2377/87 1987-06-24

Publications (2)

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EP0296547A1 true EP0296547A1 (fr) 1988-12-28
EP0296547B1 EP0296547B1 (fr) 1992-08-05

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EP88109892A Expired - Lifetime EP0296546B1 (fr) 1987-06-24 1988-06-22 Métier à filer pour la production de fils d'un ruban de fibres discontinues
EP88109893A Expired - Lifetime EP0296547B1 (fr) 1987-06-24 1988-06-22 Procédé et dispositif pour la jonction automatique d'un ruban de fibres discontinues

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EP88109892A Expired - Lifetime EP0296546B1 (fr) 1987-06-24 1988-06-22 Métier à filer pour la production de fils d'un ruban de fibres discontinues

Country Status (9)

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US (4) US4838018A (fr)
EP (2) EP0296546B1 (fr)
JP (2) JPH0197227A (fr)
CN (1) CN1017911B (fr)
BR (1) BR8803050A (fr)
CS (1) CS277008B6 (fr)
DE (2) DE3883629D1 (fr)
ES (1) ES2034038T3 (fr)
IN (1) IN172151B (fr)

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WO2014009189A1 (fr) * 2012-07-10 2014-01-16 Maschinenfabrik Rieter Ag Machine textile dotée d'un dispositif d'étirage et de deux alimentations en matériau fibreux

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US5191760A (en) * 1989-01-18 1993-03-09 Schubert & Salzer Maschinenfabrik Ag Process and device for piecing on an open-end spinning device
DE3926347A1 (de) * 1989-08-09 1991-02-14 Rieter Ag Maschf Spinnmaschine
US5235800A (en) * 1989-09-13 1993-08-17 Maschinenfabrik Rieter Ag Method and apparatus for initiation of servicing operations in a textile spinning machine
DE3932727A1 (de) * 1989-09-30 1991-04-18 Zinser Textilmaschinen Gmbh Verfahren zum beheben eines fadenbruches an einer ringspinnmaschine
JPH03158357A (ja) * 1989-11-15 1991-07-08 Howa Mach Ltd 粗紡クリール
US5343689A (en) * 1990-03-22 1994-09-06 Howa Machinery, Ltd. Method and apparatus for synchronously piecing roving for a continuous feeding thereof to a ring spinning frame
US5276947A (en) * 1990-05-18 1994-01-11 Schubert & Salzer Maschinenfabrik Ag Device for the transportion of cans between machines or devices treating or processing fiber slivers
DE4020290A1 (de) * 1990-06-26 1992-01-09 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum automatischen zufuehren eines vorgarnansatzes einer vollen vorgarnspule zu einem streckwerk einer spinnmaschine
DE4024358A1 (de) * 1990-08-01 1992-02-13 Zinser Textilmaschinen Gmbh Verfahren und vorrichtung zum wechseln von wenigstens einer vollen vorgarnspule an einer spinnmaschine
JPH0812008B2 (ja) * 1990-12-10 1996-02-07 日立金属株式会社 空気調和装置
DE4204044A1 (de) * 1991-08-01 1993-02-04 Schlafhorst & Co W Verfahren und vorrichtung zum zufuehren eines faserbandes zu einer spinnstelle einer spinnmaschine
DE4308606A1 (de) * 1993-03-18 1994-09-22 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zur Faserbandtrennung an einer Strecke
BE1007310A3 (fr) * 1993-07-07 1995-05-16 Houget Duesberg Bosson Procede et dispositif pour rattacher deux fils dans un continu a filer.
DE4404538C1 (de) * 1994-02-12 1995-04-27 Rieter Ingolstadt Spinnerei Verfahren und Vorrichtung zum Anspinnen einer Offenend-Spinnvorrichtung
EP0681983B1 (fr) * 1994-05-13 1998-06-24 Rieter Ingolstadt Spinnereimaschinenbau AG Procédé et dispositif pour positionner le bout d'un ruban de fibres sur un pot plein oblong
JP4741346B2 (ja) * 2005-11-09 2011-08-03 新日本製鐵株式会社 丸形状材の外周表面温度測定方法
DE102006053529A1 (de) * 2006-11-08 2008-05-15 Spindelfabrik Suessen Gmbh Luntenführer für ein Streckwerk
EP2539262B1 (fr) * 2010-02-26 2014-05-21 Zoltek Companies Inc. Etoupe de carbone épissée et procédé et appareil d'épissure d'étoupe de carbone
CN104099694B (zh) * 2014-07-15 2017-02-01 浙江华孚色纺有限公司 一种涡流纺纺制ab纱的方法
DE102017124562A1 (de) * 2017-10-20 2019-04-25 Maschinenfabrik Rieter Ag Textilmaschinenverbund mit einer Bandspeichereinheit zum Zwischenspeichern von Faserband
CN210237886U (zh) * 2019-03-08 2020-04-03 武汉裕大华纺织服装集团有限公司 并条机快速供料系统
IT201900021258A1 (it) * 2019-11-15 2021-05-15 Hayabusa S R L Dispositivo di giunzione di fili tessili e relativo metodo di giunzione

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WO2014009189A1 (fr) * 2012-07-10 2014-01-16 Maschinenfabrik Rieter Ag Machine textile dotée d'un dispositif d'étirage et de deux alimentations en matériau fibreux

Also Published As

Publication number Publication date
CN1017911B (zh) 1992-08-19
US4970855A (en) 1990-11-20
DE3883629D1 (de) 1993-10-07
US5105614A (en) 1992-04-21
IN172151B (fr) 1993-04-17
JPS6420333A (en) 1989-01-24
CS425388A3 (en) 1992-04-15
CN1032370A (zh) 1989-04-12
JPH0197227A (ja) 1989-04-14
CS277008B6 (en) 1992-11-18
BR8803050A (pt) 1989-01-10
DE3873435D1 (de) 1992-09-10
US4964267A (en) 1990-10-23
EP0296546B1 (fr) 1993-09-01
US4838018A (en) 1989-06-13
EP0296546A1 (fr) 1988-12-28
EP0296547B1 (fr) 1992-08-05
ES2034038T3 (es) 1993-04-01

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