EP0404045B1 - Méthode de changement de bobines d'une machine textile et machine textile - Google Patents

Méthode de changement de bobines d'une machine textile et machine textile Download PDF

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Publication number
EP0404045B1
EP0404045B1 EP90111533A EP90111533A EP0404045B1 EP 0404045 B1 EP0404045 B1 EP 0404045B1 EP 90111533 A EP90111533 A EP 90111533A EP 90111533 A EP90111533 A EP 90111533A EP 0404045 B1 EP0404045 B1 EP 0404045B1
Authority
EP
European Patent Office
Prior art keywords
thread
winding
cross
suction
plane
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.)
Expired - Lifetime
Application number
EP90111533A
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German (de)
English (en)
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EP0404045A1 (fr
Inventor
Peter Dammann
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Oerlikon Barmag AG
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Barmag AG
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Filing date
Publication date
Priority claimed from DE19893919855 external-priority patent/DE3919855A1/de
Application filed by Barmag AG filed Critical Barmag AG
Publication of EP0404045A1 publication Critical patent/EP0404045A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/71—Arrangements for severing filamentary materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a method according to the preamble of claim 1 and a textile machine according to the preamble of claim 5.
  • the method and device are known from DE-OS 21 28 974 (Bag. 805) and DE-PS 33 44 993 (Bag. 1316).
  • each processing station consists of delivery units, processing equipment and a winding device, which are arranged in a vertical plane. Similar machine parts of the processing stations lying next to each other, such as delivery plants, winding devices, are aligned with one another.
  • a preferred example of such a textile machine is a false twist crimping machine which is used for crimping smooth synthetic threads and in which each processing point consists in particular of a delivery unit, a heater, a cooling zone, a false twister, a further delivery unit and then a winding device.
  • the take-up reels of a plurality of take-up devices lying one above the other in a column are changed synchronously, that is to say they are changed in time.
  • the object of the invention is to provide such a method and a device in which a cycle change of all take-up spools of a textile machine is possible in a time-saving and flexible manner with simple means.
  • Such methods for changing the cycle of all winding devices of a textile machine are used in particular when a large number of identical bobbins with exactly the same structure and the same thread length are required. This requirement must be met, for example, for dye bobbins in order to have identical dyeing properties for all dye bobbins, e.g. To achieve ink receptivity, flushability or penetration properties for paint or flushing liquid.
  • the cycle change takes place according to the invention essentially by synchronously starting the traversing after inserting the empty tubes into the individual winding devices and by synchronously ending the winding travel of all winding devices by synchronously cutting off all the threads.
  • the thread feed speed is the speed at which the threads run to their winding devices during manufacture and / or processing. Switching on the creeper can be done by a central control of the speed of rotation and thread feed speed can be easily achieved. At creep speed, a sufficiently long operating time is available for the bobbin change and for the laying of the threads on the reserve devices for all winding devices, without stopping the machine. The creep speed is as low as possible, ie just high enough to avoid damage to the thread that leads to thread breakage.
  • the thread reserve winding is formed on the end region of the empty tube.
  • a waste winding is also wound up on the end region of the empty tube or on part of the winding spindle.
  • the thread is guided over the so-called reserve device, which contains a suitable thread guide.
  • the invention allows two different alternatives for applying the thread to the empty tube of the winding device assigned to it and for inserting it into the assigned thread reserve device.
  • the thread which runs continuously into the waste device after cutting, can pass between the top thread guide (fixed point) of the traversing device and the waste device into a take-over device, for example a hand-held suction gun, taken over and pulled out into a loop.
  • the thread is taken from the waste device by means of a take-over device, for example by means of a hand-held suction gun, by holding the suction gun on the thread between the head thread guide of the traversing triangle and the waste device and severing the piece of thread between the suction gun and the waste device.
  • a take-over device for example by means of a hand-held suction gun
  • the thread can now be placed against the empty tube of the winding device and inserted into the thread reserve device. Then the thread piece running between the empty sleeve and the suction gun must be severed.
  • the cutting can be done for both variants by tearing as well as cutting.
  • the thread inserted into the thread reserve device runs into its empty tube, which rotates slowly in the crawling gear, in essentially a normal plane until the threads of all the winding devices are placed on their empty tube and inserted into their associated reserve devices.
  • the normal planes into which the threads run during thread application lie next to the winding area in which the take-up spools are formed during operation.
  • a yarn quality can be achieved with the start of the traversing from approximately 70% of the operating speed, which is not significantly different from the final quality at operating speed.
  • Another advantage of this process variant is that the operating times are extended for all winding devices located in the same cycle. As a result, there is also a longer time available for doffing the other winding devices. This fact takes into account that the winding devices located in the same cycle are only permitted during the operation of other winding devices in the winding position.
  • a special feature of the invention is that a simultaneous termination of the winding process for all take-up bobbins takes place by cutting the thread, with it not being necessary to shut down the traversing device. This is achieved in particular in that the threads are guided into the catch area of the waste device during the traversing so that they can be automatically snapped on by the waste device when they are cut.
  • Suitable thread traps which do not interfere in particular in operation and which are nevertheless operationally reliable, result from claim 6, 7 or 8.
  • the advantage of the embodiment according to claim 8 is that thread traps are easily created by lengthening the suction openings in the circumferential direction catch the changeable thread safely without additional measures.
  • the suction pipe itself serves during operation as a deflection rail or to support the deflection rail, which is within the Traversing triangle lies and the traversing triangle bends in two planes at an angle to each other.
  • the rotatability of the suction tube can also be used to switch the guidance through the thread reserve device on and off (claim 17) and / or to switch the suction effect of the tube on or off again for the bobbin change (claim 10).
  • suction tube as a waste device offers a particular advantage if there is a common suction tube for horizontally adjacent winding devices, which serves as a common waste device for the horizontally adjacent winding devices and at the same time for actuating the thread traps, the knives and the thread reserve devices of these winding devices.
  • the suction can be switched off with simple means during the winding cycle.
  • the suction pipe is separated from the blower generating the negative pressure by means of a valve blocking the rotation of the suction pipe.
  • Another embodiment provides that an electrical switch for switching off the fan is actuated when the suction pipe is rotated.
  • the suction openings of the individual take-up devices are arranged on a common pipe surface line, so that the catch areas of the suction openings when the suction pipe is rotated about its longitudinal axis in the direction of rotation of the activation of the suction device also all threads to capture.
  • the thread Before cutting off the bobbin, the thread is brought into a precisely defined position for suction, so that the cut thread is always reliably caught even with a low suction tube vacuum.
  • traversing plane is to be understood as meaning the area that is spanned by the traversing triangle. This area does not have to be in one plane. Depending on the path of the thread guide, it can also be a curved surface.
  • the traversing triangle When the thread is deflected e.g. By means of a deflection rail transverse to the thread run between the fixed point of the traversing and the traversing thread guide, the traversing triangle consists of two planes at an angle to one another, which are bent along the deflection line.
  • the designs according to claims 9 to 15 have the advantage that the reciprocating traversing movement of the thread is used for cutting.
  • the thread is guided and cut over a knife blade pointing transversely to the thread running direction yourself from (claim 9).
  • the knife blade can lie obliquely to the thread running direction (claim 12). In this case, it forms an angle with the center line of the traversing triangle which is not 90 ° and preferably points toward the take-up spool with the end which has not yet overrun during the traversing movement.
  • the knife holders are preferably connected to the rotatable suction tube (claim 10), so that no further transmission elements have to be provided for operating the knives.
  • the optimal parameters in particular the overflow angle of the knife, need only be set for the thread coming from one of the two traversing directions in order to reliably cut the thread.
  • the thread, coming from one traversing direction is lifted over the knife holder by crossing the overflow edge and is inevitably changed into the slit for cutting off during the return movement.
  • the knife holder with the knife is preferably attached in such a way that only the thread moved outward from the center of the traversing stroke comes into contact with the knife. This ensures that the thread is always under sufficient thread tension. It is also possible to use a wavy, ground knife edge.
  • the knife can furthermore be provided such that its height can be adjusted such that its inclination to the traversing plane can be changed.
  • the cutting effect of the knife can be improved even further, since the inclination brings about an additional thread tightening during the synchronous cutting process for all threads.
  • the direction in which the inclination should take place also depends, among other things, on the arrangement of the knife edge in the slot. If necessary, the optimal inclination must be determined by experiment. However, it must be set so that the thread experiences an increase in thread tension when it is moved over the knife edge.
  • a further improvement in the cutting effect can be achieved by the features of claims 14 and 15.
  • the features of claim 14 result in a further parameter in the optimized setting of the knife edge.
  • the blade plane should expediently be set so that the angle between the running direction of the incoming thread from the cutting edge and the blade plane is greater than 90 °. Due to the inclination of the knife plane towards the incoming thread, the component of the direction of the thread running in the direction of the bobbin also contributes to the self-locking tightening of the thread during cutting.
  • Switching on the creeper initially means that without changing the gear ratios, the rotational speeds of all delivery mechanisms and the winding device are reduced in the same ratio. It is initially not taken into account that putting the traversing out of operation results in a reduction in the actual winding speed, which is geometrically composed of the circumferential speed of the spool and the traversing speed.
  • the speed of rotation of the winding spindle with the empty tube stretched thereon can be controlled independently in the sense of an increase independently of the speed of rotation of the delivery mechanisms in the crawling gear. This offers the advantage of a volume-saving, tightly wound waste and thread reserve winding.
  • the method according to claim 18 lends itself particularly to threads which are to be wound up under a relatively low thread tension.
  • the increase in the rotational speed of the winding spindle is expediently coupled with the rotational movement of the suction tube.
  • Figures 1 and 2 show the textile machine 1 in a side view.
  • FIGS. 3 to 9 relate to details of the device and the method.
  • 5 shows the perspective view of a winding device 2.
  • the traversing drive and the drive roller required for the spool drive are not shown.
  • the following description initially refers to all figures. Special features, deviations and differences are then emphasized and in the description of the process to be carried out.
  • FIGs 1 and 2 of the textile machine only the delivery mechanism 13a and the subsequent winding devices are shown.
  • the three threads 8 are manufactured or processed in workplaces located next to one another and are delivered by three supply mechanisms 13a lying one behind the other.
  • the winding devices 2 for these three threads lie one above the other in a column which covers the three work stations in the longitudinal direction of the machine. The reason for this is that the division of the work stations is considerably smaller (approx. 1/3) than the division of the winding devices 2 which is predetermined by the coil length.
  • the machine has a large number of groups of three winding devices 2 arranged vertically one above the other.
  • the picture shows a group with three winding devices which are attached to a machine frame 3.
  • Each winding has in particular a drive roller 4 and a rotatably mounted winding tube 20.
  • the winding tube 20 is supported at the end of one of two parallel swivel arms 6 in such a way that it can pivot away from the drive roller 4 as the spool diameter increases.
  • the winding spindle for the rotatable clamping of the winding tube is formed by two clamping plates 5, which are rotatably mounted in alignment with one another on the free ends of the swivel arms 6.
  • the clamping plate can - as can not be seen - perform a resilient movement inwards so that they clamp the empty sleeve 20 between them.
  • the traversing device 10 is arranged upstream of the winding.
  • FIG. 5 shows that the traversing device has, in particular, a reciprocating thread guide 11, which can be driven by a reverse thread shaft, not shown.
  • the thread guide can be moved back and forth over a certain length 30.
  • This length 30 determines the length of the take-up reel to be produced and is also referred to in this application as a traverse stroke or as a winding length.
  • Guide devices 7 for the incoming threads 8 are located on the side of the winding devices facing the operating side. Between each guide device 7 and the associated winding point 2 is the traversing device 10, which traverses the thread for winding transversely to its running direction. To reach all rewinders, use a conductor 9 that can be moved along the machine front.
  • Each guide device contains a suction tube 14 which is rotatably mounted about its longitudinal axis and extends over the length of the machine.
  • the suction pipe carries a guide arm 15 facing the winding device, which is firmly connected to the suction pipe and is therefore also pivoted when the suction pipe rotates.
  • the guide arm carries a thread guide 16 and serves as a thread reserve device, which will be discussed later.
  • the guide 16 on the guide arm 15 guides the thread 8 outside the traversing area to the empty sleeve 20.
  • the guide device 7 furthermore contains a bar 17 which is located in the thread path of the traversing triangle and is fastened to the suction tube. This bar is arranged between the fixed point 18 and the movement path 30 of the traversing thread guide 10 and parallel to it and serves as a deflection rail for the thread coming from below.
  • the fixed point 18 is formed by a fixed thread eyelet and also referred to in this application as a head thread guide.
  • the suction pipe 14 extends over a plurality of winding devices 2 which are arranged horizontally next to one another on one floor, only one of which is shown.
  • the suction pipe In the area of each traversing triangle, the suction pipe has a suction opening (radial jacket opening 27).
  • the deflection rail 17 has a slot 29 lying radially above the jacket opening in the tube longitudinal region of each suction opening 27. Each slot is so deep that it surrounds its suction opening 27 as a recess 28 at a distance. This slot 29 serves as a thread trap.
  • Fig. 2 shows the textile machine in operation, i.e. at the beginning of the winding trip.
  • the sleeves or the winding coils formed thereon rest on their respective drive rollers 4 and are driven in rotation by the drive rollers.
  • phase 1 and 2 the delivery speed and winding speed are reduced to a creep speed (operation in the creep speed).
  • phase 1 As can be seen from FIGS. 3 to 5, when the suction tube rotates, the guide arm 15 and the knife holder 33 are also pivoted together with the knife 34. Furthermore, by means of a special valve device, which is shown in FIGS. 6, 7 and which will be discussed later, the suction pipe is placed under negative pressure, so that a suction flow is created in the suction openings.
  • phase 1 the suction tube is now pivoted so that the suction openings 27 face the thread path and that the slot 29 with the recess 28 penetrates the traversing plane of the traversing triangle.
  • the thread which is first guided on the deflection rail 17, falls into the recess 28.
  • the thread now runs in the normal plane and on the suction opening and is here exposed to the suction flow.
  • the thread is still guided back and forth by the traversing device between the recess 28 and the traversing device 10.
  • Phase 2 cutting the threads: As is particularly clear in FIG. 5, when the suction pipe is pivoted in the direction of the arrow 26, the knife holder 33 with the knife 34 is in the traversing plane and the thread run between the recess 28 and the reciprocating thread guide 10 has been pivoted.
  • the knife which is the subject of the following description, can be used not only for the present method for changing the cycle, but also in other areas of thread technology.
  • the knife holder 33 and the knife 34 in a knife plane that intersects the traversing plane.
  • the intersection line between the knife plane and the traversing plane has a component that extends parallel to the winding axis.
  • the cutting line preferably also has a component which extends perpendicularly thereto.
  • the knife holder has a slot 35 lying in the traversing plane, into which the thread, which is traversed from the left, runs. The slot is therefore open on one side.
  • the lower edge of the slot - is formed by the knife edge 36 of the knife.
  • the other longitudinal edge of the slot - ie the upper longitudinal edge in the figure - is formed by two guide edges 51 (FIG. 8).
  • Each of these guide edges 51 lies in a plane which is parallel to the knife plane and is closely adjacent to the knife plane.
  • the knife holder 33 consists of two side plates 52 which have the slot 35.
  • a knife 34 is placed between the side plates 52 while maintaining a small distance on both sides such that the knife edge 36 projects into the slot 35 and forms its lower edge in such a way that the slot narrows from its opening to its end and that finally the leading edges 51 cover the knife edge 36.
  • Fig. 8 shows a section through the knife holder 33 perpendicular to the knife plane approximately on the line VIII in Fig. 5. It can be seen that the knife holder 33 consists of two side plates 52 which are clamped together by a locking screw 36 and thereby Knife blade 34 clamp between them. For precise adjustment of the inclination or inclination of the knife edge 36, the knife can be adjusted after loosening the locking screw 39 and then firmly clamped again by tightening the locking screw 39.
  • FIG. 9 shows a section through the knife holder 33 approximately in the traversing plane, the line of sight being on line IX according to FIG. 8. It can be seen from these figures that the side plates 52 of the knife holder and the knife blade 34 do not lie flat against one another, but form a distance between them which prevents the thread from jamming. This also prevents the accumulation of thread residues and fluff.
  • the knife level i.e. the plane in which the knife blade 34 lies is inclined such that the angle between the knife plane and the traversing plane is not 90 °.
  • This angle is labeled "alpha”.
  • the knife plane is thus inclined so that the knife edge 36 points towards the incoming thread.
  • the angle alpha which is less than 90 °, is behind the knife plane when viewed in the thread running direction.
  • the blade of the knife 34 is arranged obliquely to the center line of the traversing triangle 47 when the knife holder, which is fastened to the suction pipe (not shown here), is in the operating position.
  • the knife 34 With respect to the center line of the traversing triangle, the knife 34 is rotated such that the knife edge approaches the winding tube from its beginning at the inlet of the slot 35 to its end.
  • the angle "beta" which the knife edge forms with the center line of the traversing triangle is less than 90 ° and greater than 0 ° behind the knife edge when viewed in the running direction of the thread.
  • a special feature of the embodiment shown is that the knife holder 33 is equipped with only one slot, which points only in one traversing direction. Such an arrangement presupposes that the thread is always chucked into the slot from one direction. For this reason, the knife holder has at its end facing away from the slot an overflow edge 37 which pierces the traversing plane at an angle and points essentially in the traversing direction. If the thread is only changed - as in the picture - from right to left, it runs up the overflow edge and jumps over knife holder 33. During the next traversing stroke from left to right, the thread is then cut into the slot and cut off.
  • the suction pipe is subjected to negative pressure, so that an air flow is drawn into each suction opening.
  • the deflection rail 17 pierces the traversing plane with the recess 28.
  • the overflow edge 37 of the knife holder 33 pierces the traversing plane. Assume that the thread comes from the right at the moment of pivoting, ie from the side of the knife holder facing away from the slot 35. The thread now travels during its traversing movement on the overflow edge 37 via the slot to the other end of the traversing stroke.
  • the cutting process is thus very much modeled on the cutting of a thread on a knife edge in the static state. Since, in addition, the knife plane is inclined against the thread running direction (cf. angle alpha in FIG. 8), sufficient thread tension on the knife edge 36 is additionally ensured. In other words: As a result of the deflection of the knife in the direction of the bobbin, a self-reinforcing clamping effect of the narrowing slot and thus a safe cutting off of the thread is brought about, since the thread which has been caught is tightened. The inclination or inclination causes an additional thread tensioning during the overflow over the knife edge, since the thread is forcibly lifted up to the cut under the thread pulling force over the traversing plane.
  • the thread pulls into the constriction in such a way that a thread point slides along on the knife edge 36.
  • the knife edge penetrates the traversing plane obliquely, so that the thread is further away from the traversing plane while the knife edge is overflowing. It is pulled by the knife edge 36 under the guide edges 51 and additionally tightened.
  • the wrap angle of the thread on the knife edge 36 increases further, as a result of which the frictional forces between the thread and the looped knife edge continue to increase. This continues until the thread is separated.
  • the thread pulling force continues to decrease wound thread, which also favors the separation process.
  • Phase 3 now begins: replace the full bobbins with an empty tube.
  • Fig. 1 it is shown for the lower two winding devices that after the cap on the full bobbin the continuously tapering thread 12 is guided into the suction tube and suctioned off there. Now the full bobbins can be removed from the bobbin holder and replaced with empty tubes 20. 1 and 5, this replacement process has already been carried out.
  • Phase 4 Applying the threads to the empty tube as well
  • Phase 5 Insert the threads in the guide of the thread reserve device and put the thread back on the empty tube.
  • Phase 4 and phase 5 are essentially carried out in the same way. It should be noted that in phases 3, 4, 5 the winding devices are not operated simultaneously.
  • FIGS. 1, 3 to 5 For the description of phases 4 and 5, reference is made in particular to FIGS. 1, 3 to 5. It should be noted that a lever 15 with a guide 16 is also attached to the suction tube for each winding device, which is guided to the height of the traversing plane when the suction tube rotates. 1, upper winding device, and FIG. 4 show a first, with reference to FIG. 3, a second application method. 1 is the Thread is placed on an empty tube by the operator by means of a takeover device 19.
  • FIGS. 3 and 4 show a side view of details for taking over the running thread from the suction tube and for applying the thread to the empty tube 20.
  • a suction air flow 21 flows through the suction tube 14. This suction air flow initially conveys the thread coming from the fixed point 18 of the traversing until it is picked up by the take-over device - in all cases a suction gun 22.
  • the takeover device serves to take over the thread, which initially still runs into the suction pipe 14, in order to place it on the reserve device and the empty tube 20.
  • the thread piece running into the suction pipe 14 must be severed for both cases. In both cases, cutting takes place by cutting off.
  • a knife 23 is used to cut the thread, which in the case of FIG.
  • FIG. 3 is arranged in the suction tube 14, but in the case of FIG. 4 in the suction gun 22.
  • the knife is inclined to the thread running in the suction direction. Due to the inclination of the knife to the thread run, the thread can run undamaged over the blade in one direction, the suction direction. In the other direction, however, the thread is gripped by the thread cutting edge 24 and cut off.
  • the thread initially running into the suction pipe is taken over by the suction gun 22 and drawn out into a loop.
  • This is done in that the thread between the fixed point, ie head thread guide 18, and the suction tube is first drawn into the suction gun 22 and reverses its direction there by 180 °, whereby a loop 25 is formed.
  • the reversing thread piece is still in the suction opening 27 of the suction tube 14.
  • the other thread end running into the suction gun is now pulled out so far that either both thread strands or only one of the thread strands of loop 25 can be placed on the circumference of the empty tube.
  • At least the thread center running from the fixed point of the traversing into the suction gun is placed in the guide fork 16 attached to the guide arm 15, so that the thread runs outside the traversing area of the traversing device 10 to the empty tube. Then the thread is placed on the circumference of the empty tube.
  • the empty tube grips one or both ends of the loop with a suitable catch slot and then winds the thread still running outside the traversing area into a waste bead 32 (FIG. 5) on the empty tube.
  • the suction force of the gun 22 on the thread loop 25 is greater than the suction force of the suction tube 14.
  • the piece of thread between the empty tube and the thread cutting edge 24 of the knife blade in the suction opening 27 is stretched so much at the latest during the gripping by the empty tube that the thread comes out the suction opening 27 is pulled out. It is guided over the knife blade 23 inclined in the suction direction. The thread therefore runs up on the cutting edge 24 when it is pulled out in such a way that the thread is cut at the cutting edge 24.
  • the alternative application method is shown in FIG. 1 and with reference to FIG. 4.
  • the thread between the head thread guide 18 and the suction opening 27 of the suction tube 14 is caught by a hand-held suction gun 22.
  • the operator holds the suction gun 22 in the vicinity of the thread path and then cuts the thread between the suction gun 22 and the suction opening 27 of the suction tube 14 by hand. Now the free thread end starting in the creeper is gripped by the suction gun 22.
  • the thread does not form a loop, but instead runs into the suction tube 22 instead of into the suction tube 14, which in turn is connected to a suitable waste device (not shown).
  • the creation makes a difference 3 from the fact that now the piece of thread running into the suction gun is placed on the catching device, for example the catching slot (not shown) arranged on the circumference of the empty sleeve 20 and at the same time placed in the guide 16. After catching the thread on the empty tube 20, the thread, which still runs towards the suction gun 22, comes under a very high tensile force, so that it is pulled out of the suction gun 22.
  • the thread After being gripped by the empty tube (application), the thread first runs over the deflecting rail 17 and through the guide 16 of the empty tube 20 and is wound up there to a waste bead 32 without oscillation.
  • the state of waste winding according to phase 5 is continued until all threads of the textile machine have been placed on their respective empty tubes.
  • the amount of thread that is deposited as a waste package is small, since the entire textile machine has already been switched into the crawl space after phase 2, the cutting of the threads.
  • the speed of rotation of the empty tube can be increased somewhat in relation to the delivery speed of the thread, so that the thread is under a sufficiently high thread tension stands on the bead of waste when the thread runs, although the thread runs in only one normal plane and is not guided back and forth by traversing.
  • Phase 6 loosening the guide of the thread reserve device and winding the thread reserve and the Phase 7: Start of the winding trip by catching the thread in the traversing.
  • Phase 6 is initiated by turning the suction pipe.
  • Phases 6 and 7 are carried out synchronously for all winding devices and work stations. Simultaneously with one of the phases 6 or 7, the speed of the textile machine is increased to the normal operating speed.
  • the guide arm 15 When the suction tube is rotated, the guide arm 15 is pivoted in the pivoting direction 26. As a result of the pivoting of the suction tube into the dotted position, the deflection rail 17, which is located between the fixed point 18 of the traversing and the empty sleeve 20, is raised so far that the thread is lifted out of the guide 16 while the guide 16 is lowered. Since the fixed point 18 of the traversing forms the triangle tip of the traversing triangle, but the guide 16 lies outside the traversing triangle, the thread, after being lifted out of the guiding 18, tends to run towards the center of the traversing triangle.
  • the thread forms a few turns on the empty tube, which in the future will serve as a thread reserve winding for connecting the thread ends of two bobbins.
  • the thread guide 10 has side flanks which are inclined to the traversing plane and which form a triangle which penetrates the traversing plane. Therefore, the thread guide 10 catches the thread automatically. Since the suction tube connects the winding devices lying horizontally next to one another and therefore all guides 16 become ineffective at the same time, the traversing consequently begins synchronously for all winding devices lying next to one another.
  • FIGS. 6 and 7 show detailed drawings for a suction pipe 14 which, by rotating in two directions 26 and 31, can either be connected to the suction line 40 or separated from it.
  • the suction line 40 is connected to a suction pump 41 and opens on the side remote from the pump into a valve housing 42 in which a rotatable plug 43 is arranged.
  • the chick can be rotated via handle 44, for example.
  • the plug projects beyond the valve housing 42 on one side, the projecting part being penetrated by an axial blind bore 45.
  • the suction pipe 14 is placed pressure-tight over the protruding part and can be rotated together with the chick. As can be seen, the jacket opening 27 in the suction pipe 14 is rotated at the same time.
  • connection opening 46 which connects the suction line 40 to the bore 45 in a certain rotational position.
  • the connection is interrupted in the rotational position shown. However, the connection is fully opened by turning it about 90 ° counterclockwise. In this position, the suction pipe is in the suction position.
  • the jacket openings are arranged in such a way that their catch area in the suction position detects the thread passing by.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (18)

  1. Procédé pour le changement de canettes des tubes à enrouler d'une machine textile, spécialement d'une machine à texturer de fausse torsion,
    équipée avec un grand nombre d'unités de bobinage pour la production et/ou le traitement et pour l'enroulage d'un seul fil à chaque unité de bobinage,
    - procédé où chaque fil, à son unité de bobinage, est conduit à un dispositif d'enroulage pourvu d'un tube à enrouler actionné de façon pivotante, en passant par des cylindres de décharge et un dispositif de mouvement transversal à guide-fil captant le fil automatiquement, le fil traversant le plan de mouvement transversal avant d'arriver à ce dispositif de mouvement transversal,
    - procédé où plusieurs fils en marche, après avoir rempli leurs bobines, sont coupés simultanément et donnés dans une installation à ramasser les déchets en même temps que les canettes sont remplacés par des tubes;
    - procédé où les fils sont ensuite - après le coupage de la fin du fil en marche vers l'installation à ramasser les déchets et après la formation d'un enroulement de fils en réserve ou, le cas échéant, d'un enroulement de rebut - étalés chacun à son nouveau tube à enrouler et reconduits dans la direction du dispositif de mouvement transversal pour être enroulé
    - procédé caractérisé par la combinaison des attributs suivants:
    1.1. Tous les fils sont conduits synchronément dans le domaine de captage de l'installation à ramasser les déchets située devant chaque dispositif de mouvement transversal à guide-fil;
    1.2. tous les fils sont coupés synchronément entre l'installation à ramasser les déchets et le dispositif de mouvement transversal à guide-fil;
    1.3. la vitesse de rotation du dispositif enrouleur et du cylindre de décharge est diminuée à une vitesse de fluage;
    1.4. à chaque dispositif enrouleur la canette est remplacée par un tube à enrouler (changement de canettes);
    1.5. chaque fil est étalé au tube du dispositif enrouleur adjoint et en même temps inséré dans la glissière de guidage immobile d'un dispositif de réserve de fils. Il y en a deux possibilités:
    1.5.1. Premièrement: Le fil en marche vers l'installation à ramasser les déchets est étiré pour former un lacet. Un brin du lacet est étalé au tube de bobine et inséré dans la glissière de guidage du dispositif de réserve de fils, ce qui permet de couper le fil entre le tube de bobine et l'installation à ramasser les déchets;
    1.5.2. deuxièmement: Le fil en marche vers l'installation à ramasser les déchets est capté, en forme de lacet, dans l'installation à déchets à l'aide d'un injecteur aspirant, il est ensuite coupé entre l'installation à déchets et l'injecteur aspirant, puis il est etalé au tube à enrouler à l'aide de l'injecteur aspirant et inséré dans la glissière de guidage du dispositif de réserve de fils pour être ensuite coupé entre la tube de bobine et l'injecteur aspirant;
    1.6. après l'étalage de tous les fils la vitesse de rotation de tous les dispositifs enrouleurs et de tous les cylindres d'alimentation est soulevée à la vitesse de rotation du fonctionnement normal;
    1.7. les glissières de guidage des dispositifs de réserve de fils de toutes les unités de bobinage sont synchronément mises hors d'activité de sorte que les fils, sous leur propre force de traction, cheminent dans la sphère d'influence du mouvement transversal où ils sont attrapés par les guide-fil du mouvement transversal qui attrapent les fils automatiquement.
  2. Procédé selon la revendication 1,
    caractérisé par le fait que
    le soulèvement de la vitesse de rotation des dispositifs enrouleurs et des cylindres d'alimentation est effectué avant la mise hors d'activité de la glissière de guidage du dispositif de réserve de fils.
  3. Procédé selon la revendication 1,
    caractérisé par le fait que
    le soulèvement de la vitesse de rotation des dispositifs enrouleurs et des cylindres d'alimentation est effectué après la mise hors d'activité de la glissière de guidage du dispositif de réserve de fils.
  4. Procédé selon l'une quelconque des revendications 1 à 3,
    caractérisé par le fait que
    dans un premier pas (1.1) les fils sont, à l'aide d'une trappe de fil, attrapés et guidés synchronémemt dans le domaine de captage de leur installation à ramasser les déchets qui est cachée par le plan de mouvement transversal,
    pour être ensuite, dans un deuxième pas (1.2), coupés entre la trappe de fil et le dispositif de mouvement transversal.
  5. Machine textile,
    spécialement une machine à texturer de fausse torsion, équipée avec un grand nombre d'unités de bobinage pour la production et/ou le traitement et pour l'enroulage d'un seul fil à chaque unité de bobinage,
    - machine, où chaque fil est conduit à son dispositif d'enroulage pourvu d'un tube de bobine actionné de façon pivotante, en passant par des cylindres de décharge et un dispositif de mouvement transversal à guide-fil, le fil traversant le plan de mouvement transversal entre un point fixe et le dispositif de mouvement transversal,
    pourvu d'une installation à ramasser les déchets, d'un dispositif de coupage et d'un dispositif de réserve de fils pour la réalisation du procédé selon l'une quelconque des revendications précédentes
    caractérisé par le fait que
    l'installation à ramasser les déchets est un tuyau d'aspiration admis par dépression, tuyau qui s'étend - devant et parallèle à plusieurs dispositifs de mouvement transversal à guide-fil - adjacent étroitement au plan de mouvement transversal qui est traversé par les fils,
    tuyau d'aspiration qui possède pour chaque fil une ouïe d'aspiration dans le domaine du plan de mouvement transversal,
    procédé caractérisé par le fait
    que dans le domaine de captage de chaque ouïe d'aspiration, une trappe de fil est installée qui est mobile et en état de cheminer dans le plan de mouvement transversal pour attraper et guider le fil,
    et que les trappes de fil de plusieurs unités de bobinage peuvent être activées synchronément.
  6. Dispositif selon la revendication 5,
    caractérisé par le fait que
    la trappe de fil est une barre conductrice parallèle au plan de mouvement transversal qui possède, dans le domaine d'influence de l'ouïe d'aspiration, une entaille verticale au plan de mouvement transversal et qui est mobile pour cheminer d'une position parallèle au plan de mouvement transversal au milieu du plan de mouvement transversal.
  7. Dispositif selon la revendication 6,
    caractérisé par le fait
    que le tuyau d'aspiration est orientable entre une position de repos et une position de marche dans laquelle les ouïes d'aspiration de chaque unité de bobinage s'ouvrent au fil en marche,
    et que la barre conductrice est conjuguée avec le tuyau d'aspiration de sorte que la barre conductrice, dans la position de repos du tuyau d'aspiration, se trouve par'allèle au plan de mouvement transversal, mais qu'elle immerge dans le plan de mouvement transversal au moment du pivotement du tuyau d'aspiration dans la position de marche.
  8. Dispositif selon la revendication 5,
    caractérisé par le fait
    que le tuyau d'aspiration est orientable entre une position de repos et une position de marche dans laquelle les ouïes d'aspiration de chaque unité de bobinage s'ouvrent au fil respectif en marche,
    et que les trappes de fil sont des entailles qui s'étendent au périmètre extérieur du tuyau d'aspiration dans la direction du périmètre, entailles qui partent des ouïes d'aspiration et qui sont appliquées de sorte qu'elles sont en état de cheminer dans le plan de mouvement transversal de chaque unité de bobinage par un pivotement du tuyau d'aspiration autour de son axe longitudinal.
  9. Dispositif selon l'une quelconque des revendications 5 à 8,
    caractérisé par le fait que,
    pour couper synchronément les fils à chaque unité de bobinage, un porte-couteau avec un couteau placé à contre-fil est fait entrer dans le plan de mouvement transversal à la fin du bobinage.
  10. Dispositif selon la revendication 9,
    caractérisé par le fait
    que les porte-couteau sont attachés aux tuyaux d'aspiration, et qu'ils sont en état de cheminer dans le plan de mouvement transversal par un pivotement du tuyau d'aspiration autour de son axe longitudinal.
  11. Dispositif selon la revendication 9 ou 10
    caractérisé par le fait
    que chaque porte-couteau possède un bord-déversoir pour le fil arrivant d'une des deux directions pendant le mouvement transversal - bord-déversoir qui traverse obliquement le plan de mouvement transversal après y avoir été fait entrer -
    et que le couteau et le porte-couteau forment une rainure se rétrécissant de façon cunéiforme dont l'orifice s'ouvre - avec le tranchant de couteau - au fil arrivant de l'autre direction pendant le mouvement transversal.
  12. Dispositif selon la revendication 11,
    caractérisé par le fait que
    le couteau est situé dans un plan de couteau croisant l'axe du tube de bobine de telle sorte que le tranchant de couteau s'approche du tube de bobine dès l'orifice jusqu'au bout de l'entaille.
  13. Dispositif selon l'une quelconque des revendications 9 à 12,
    caractérisé par le fait que
    l'inclinaison du tranchant de couteau vers le plan de mouvement transversal est réglable.
  14. Dispositif selon l'une quelconque des revendications 9 à 13,
    caractérisé par le fait que
    l'angle entre le plan de couteau et le plan de mouvement transversal est réglable de façon si différente d'un angle droit que le tranchant de couteau s'oppose au fil arrivant.
  15. Dispositif selon l'une quelconque des revendications 9 à 14,
    caractérisé par le fait que
    le porte-couteau possède - pour former l'entaille se rétrécissant de façon cunéiforme - des bords de guidage le long des deux côtés du plan de couteau, bords de guidage qui s'étendent dans des plans parallèle au plan de routeau et qui croisent le tranchant de couteau - dans l'élévation de côté - en formant un angle aigu.
  16. Dispositif selon l'une quelconque des revendications 5 à 15,
    caractérisé par le fait
    qu'il est possible de couper l'aspiration d'air pendant le bobinage par le fait que le tuyau d'aspiration est orientable autour de son axe longitudinal; la coupe de l'aspiration d'air est réalisée de préférence de telle sorte que les fils en marche ne traversent pas les ouïes d'aspiration pendant le bobinage.
  17. Dispositif selon l'une quelconque des revendications 5 à 16,
    caractérisé par le fait que
    les dispositifs de réserve de fils sont attachés aux tuyaux d'aspiration et qu'ils sont - par un pivotement des tuyaux d'aspiration - orientables dans le circuit du fil.
  18. Dispositif selon l'une quelconque des revendications 1 à 4,
    caractérisé par le fait que
    la vitesse de rotation du dispositif enrouleur est soulevée pendant le coupage synchrone des fils pour les raidir.
EP90111533A 1989-06-19 1990-06-19 Méthode de changement de bobines d'une machine textile et machine textile Expired - Lifetime EP0404045B1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE19893919855 DE3919855A1 (de) 1989-06-19 1989-06-19 Verfahren zum taktwechsel einer textilmaschine
DE3919855 1989-06-19
DE3936486 1989-11-02
DE3936486 1989-11-02
DE4005821 1990-02-23
DE4005821 1990-02-23

Publications (2)

Publication Number Publication Date
EP0404045A1 EP0404045A1 (fr) 1990-12-27
EP0404045B1 true EP0404045B1 (fr) 1993-09-08

Family

ID=27199727

Family Applications (2)

Application Number Title Priority Date Filing Date
EP90111179A Expired - Lifetime EP0403949B1 (fr) 1989-06-19 1990-06-13 Dispositif pour couper des fils continus
EP90111533A Expired - Lifetime EP0404045B1 (fr) 1989-06-19 1990-06-19 Méthode de changement de bobines d'une machine textile et machine textile

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP90111179A Expired - Lifetime EP0403949B1 (fr) 1989-06-19 1990-06-13 Dispositif pour couper des fils continus

Country Status (3)

Country Link
US (2) US5107668A (fr)
EP (2) EP0403949B1 (fr)
DE (2) DE59006745D1 (fr)

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Publication number Priority date Publication date Assignee Title
EP3057896B1 (fr) 2013-10-14 2020-05-13 STC Spinnzwirn GmbH Dispositif permettant l'extrusion, l'étirage et l'enroulement d'un groupe de bandelettes de feuille

Also Published As

Publication number Publication date
DE59006745D1 (de) 1994-09-15
DE59002617D1 (de) 1993-10-14
EP0403949B1 (fr) 1994-08-10
US5284010A (en) 1994-02-08
US5107668A (en) 1992-04-28
EP0403949A1 (fr) 1990-12-27
EP0404045A1 (fr) 1990-12-27

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