JP2008144342A - Sectional warper for patterned warp yarn and method for producing patterned warp yarn - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To produce patterned warp yarns with excellent uniformity by using warp strips with different numbers of threads with a small additional cost. <P>SOLUTION: The warp pattern warping machine, with a warping drum (1) with axially movable transporting surfaces (2) arranged on the circumference of the drum, thread guides (14) arranged on a thread guide carrier (15), and a creel (7) from which the thread guide (14) draws threads (21), has the warping drum (1) the thread guide (14) movable in relation to each other in the axial direction, in which the warping drum (1) and the thread guide carrier (15) are moved in the axial direction in relation to each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention has a warping drum in which a plurality of conveying surfaces movable in the axial direction of the warping drum are arranged on a peripheral surface thereof, a plurality of yarn guides arranged on a yarn guide support, and a creel. , A partial warper for a pattern warp in which a yarn guide pulls out a yarn from the creel, and the warping drum and the yarn guide are movable relative to each other in the circumferential direction, and by a yarn guide attached to a yarn guide support. A warp band composed of a plurality of yarns is guided around the peripheral surface of the warping drum, and is fed on a conveying surface that moves in the axial direction, and the number of yarns per warp band is between at least two warp bands. The present invention relates to a method for producing a patterned warp that is changed in the above.

  A pattern warp partial warper, also referred to as a “short warp partial warp”, is used to produce a pattern warp. For this reason, a warp band composed of a plurality of yarns is simultaneously guided around the circumferential surface of the warping drum and fed onto a conveying surface disposed on the circumferential surface of the warping drum. The conveying surface is often formed by a rotating conveying belt. When one warp band is wound up on the conveying surface of the warping drum so as to obtain the required yarn length for the pattern warp, that is, the required number of winding layers, a new warp band is placed on the conveying surface. The transport surface must be transported continuously so that space is reserved.

  The warp band is usually wound on the warping drum so that a conical front portion is formed by the yarn layer. In other words, the mutually continuous wound layers are always shifted relative to each other in the axial direction by a predetermined increment and wound on the warping drum.

This technology has proven its technical value. The latest partial warp for pattern warp can wind up to 16 yarns simultaneously, and high productivity can be obtained.
European Patent Application Publication No. 1 197 589 A1.

  However, in some pattern designs, it is necessary to change the number of yarns for each warp band. For this reason, in an extreme case, it is possible that one warp band is formed by only one thread, while another warp band is formed by the maximum number of threads. From this, the pattern warp has a non-uniform density when no additional measures are taken.

  For this reason, it has already been proposed to set the speed at which the conveyor belt is moved in accordance with the width of the warp band, that is, the number of yarns per warp band. That is, when winding a large number of yarns per warp band, the conveyor belt moves at a higher speed in the axial direction. When a small number of yarns are wound per warp band, the conveyor belt moves at a lower speed. By configuring in this way, even if the number of yarns per warp band is different, the warp bands can be linked to each other in the axial direction (continuous to each other) regardless of the number of yarns, and the pattern warp has a uniform density.

However, if this solution is adopted, a relatively large cost is required. That is, a transport belt drive device that can change the moving speed of the transport surface depending on the number of yarns is required.
At the same time, care must be taken in that the yarn layer formed by the wound yarn must have a conical front. That is, when programming the drive device for the conveyor belt, a plurality of overlapping speeds must be taken into account, which again makes the control of the drive device complicated and requires a relatively high cost.

  The present invention provides a partial warp for a warp warp that can produce a pattern warp having good uniformity at a small additional cost even when it has at least two warp bands each having an unequal number of yarns. And a method for producing the patterned warp.

  This problem is solved by the fact that the warping drum and the yarn guide support are relatively movable in the axial direction in the type of warp partial warper of the type indicated at the beginning.

  With this configuration, it is possible to separate the motion correction necessary to compensate for different warp band widths, that is, different numbers of yarns per warp band, from the feed movement of the conveying surface. This configuration greatly simplifies the configuration for changing the speed. The motor that is indispensable for driving the conveying surface does not need to be operated at different speeds during the warp warping process, and thus can be configured more simply. Therefore, these motors and these controls can be implemented at a lower cost. Control for movement of all elements involved is simplified. In addition, the operator can relatively easily monitor the relative movement between the warping drum and the yarn guide support, and thus warp so that the continuous warp bands are linked together without any gaps. The pattern warp composed of the plurality of warp bands has a uniform density.

  In a preferred embodiment, the yarn guide support and the creel are coupled to each other in the axial direction, and the warping drum and the creel are configured to be movable relative to each other in the axial direction. In many cases, the yarn guide support and the creel form a unit, which can be displaced relatively and integrally with the warping drum. The yarn guide support is formed, for example, in the form of an element that rotates relative to the warping drum, for example a ring or spoke with a yarn guide attached. The configuration in which the yarn guide support is displaced relative to the warp drum, or the configuration in which the warp drum is displaced relative to the yarn guide support is a relatively simple configuration that does not require a large cost. Become.

  Mainly, the transport surface has a drive device that can be set to a constant speed. A drive that only operates at a constant speed is inexpensive. A control device capable of changing the speed of the driving device is not necessary. In particular, the programming of such a drive device can be carried out relatively easily to the parameters required for the warping process.

  In this case, the speed of the driving device is preferably set to a value lower than the speed essential for the maximum width warp band and higher than the speed essential for the minimum width warp band. That is, the speed of the conveying surface is averaged so that all the warp bands of one repeat can be wound at a predetermined position in the axial direction of the warping drum.

  Mainly, the yarn guide is preferably configured to be movable in the axial direction relative to the yarn guide support. In such a case, a thread guide can be used to form a cone in front of the thread layer. In this way, the three main movements essential for producing a patterned warp can be distributed into three different elements. That is, the formation of the cone is realized by the movement of the yarn guide relative to the yarn guide support. Then, the unloading of the yarn layer (displacement in the axial direction of the warping drum) essential for providing a space for a new warp band is realized by the movement (running) of the conveying surface. Furthermore, the positioning of each warp band between the different yarn layers is achieved by relative movement between the warping drum and the yarn guide support in the axial direction. In such a case, since all the three exercises can be confirmed relatively easily, these adjustments can also be made by a highly skilled worker.

  Mainly, the yarn guide is configured to include a driving device that separates the yarn guide itself from the front surface of the warping drum by a predetermined distance for each turn. For example, such a driving device can be adjusted so that the yarn guide moves backward by three times the thickness of the yarn, that is, in a direction away from the front of the warping drum. In this way, a cone having a cone angle with a tilt angle of more than 18 ° is obtained in front of the warping drum.

  Mainly, preferably, the warping drum and / or the yarn guide support is configured to include a spindle transmission. In such a spindle transmission, the spindle is rotated with a screw. The screw on the spindle meshes with a corresponding counterpart screw on the warping drum or the yarn guide support, and rotation of the spindle causes a relative displacement of the warping drum and / or the yarn guide support in the axial direction. Since the relative movement between them is very small, that is, the relative movement is the relative movement by the distance of the order of the yarn width multiplied by the difference between the number of yarns of each warp band. Thus, a relatively small screw pitch can be used, and the relative movement in the axial direction does not require excessive costs as the required drive.

  As an alternative configuration, the warping drum and / or the yarn guide support can be configured to have a rack and pinion drive. Even with such a configuration, a small relative movement between the warping drum and the yarn guide support can be realized without any problem.

  The problem is solved in a method of the type indicated at the outset by the relative movement of the warping drum and the yarn guide support in the axial direction.

  With such a configuration, even when each warp band is formed with the same number of yarns, the yarn guide can be positioned relative to the warping drum so that the warp bands can be directly linked to each other. It becomes possible. A warp band having a large number of yarns requires some space on the conveying surface. This is because a single warp band is wound on the warp drum, and the conveying surface has not yet fully transported the warp band from the front of the warp drum (moved in the axial direction of the warp drum). In this case, the yarn guide support and the warp drum are moved relatively so that the yarn guide can wind the next warp belt following the preceding warp band. That is, in such a case, the warping drum and the yarn guide support are slightly separated from each other. On the other hand, when the warp band wound on the warping drum has only a small number of yarns, the conveying surface causes the warp band to be separated slightly excessively. In such a case, the warp drum and the yarn guide support are positioned again closer together and the next warp band can be continued to the preceding warp band.

  Mainly, the conveying surface is configured to move at a constant speed. With such a configuration, a relatively simple driving device can be used. A constant speed can be easily obtained, and programming of the partial warp for the warp warp is not overly complicated. Furthermore, wear is reduced when the transport surface is moved at a constant speed.

  In that case, it is preferable that the conveying surface is moved at a speed corresponding to the average speed of all the warp bands of one repeat. One repeat is one pattern repeated over the width of the handle warp. By the way, when the speed of the conveying surface is set so that all the yarns have a predetermined space during the aging of one repeat, the difference caused by different warp band widths is different between the warping drum and the yarn guide support. Can be compensated by the relative motion between.

  Further, the movement between the warp drum and the yarn guide support, that is, the relative movement between the warp drum and the yarn guide support is performed at the time of transition between the two warp bands, and both warp bands are A configuration that moves in series is an advantageous configuration. In such a case, it is possible to relatively easily check whether or not the relative movement between the warping drum and the yarn guide support has been adjusted correctly in the axial direction. Such relative movement is only a relatively short movement. Since the distance of this movement (relative movement) is relatively short, the speed during the relative movement can be kept small. During the transition between two warp bands (transition path from one warp band to the subsequent warp band), the thread guide must generally move in the axial direction from the end of the cone to the start and beyond Don't be. When the yarn guide performs such a movement, sufficient time will be provided to move the warp drum and the yarn guide support relative to each other.

  According to the pattern warp partial warping machine and the method for producing the pattern warp according to the present invention, the pattern warp that can produce the pattern warp having good uniformity with the warp band of the unequal number at a small additional cost. A method for manufacturing a partial warper and a handle warp can be provided.

      Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the pattern warp partial warping machine has a warping drum 1, and a plurality of transport belts 2 are provided in the longitudinal direction (transport direction) on the peripheral surface of the warping drum 1. Are arranged so as to coincide with the axial direction of the warping drum 1, and when the pattern warp is warped, the conveyor belt 2 is moved in the direction of the arrow 3 in parallel with the axis of the warping drum 1. Dividing rods not shown in detail also function as Reeds rods, sizing rods, or have other functions. The outer surface of the conveying belt 2 (the outer diameter side of the warping drum 1) constitutes a conveying surface.

  The rotary creel 7 has a rotating body 8, and a plurality of bobbins 9 are arranged on the rotating body 8. As shown in FIG. 2, the rotating body 8 is configured to be driven and rotated by a motor 10 via a belt transmission device 11 and a hollow shaft 12.

  In synchronization with the hollow shaft 12, the other hollow shaft 13 is rotated. The yarn guide support 15 fixed to the hollow shaft 12 so as not to rotate relative to (integrally) has a yarn guide 14. The yarn guide support 15 has a radially extending arm 17, and the radially extending arm 17 is held by a hub 16. A lever 18 pivotally attached to the outer end of the arm 17 can be rotated within a predetermined angle by a stepping motor 19, and the tip of the lever 18 has a shape of eyelet (eyelet) in this embodiment. The yarn guide 14 is disposed. FIG. 2 shows three positions that the yarn guide 14 can take in the operation area of the yarn guide 14. As shown in the lower end of the drawing, “position a” is the position of the warping drum 1. It is relatively far from the front, “position b” is relatively close to the front of warping drum 1, and “position c” is located in front of the front of warping drum 1. The stepping motor 19 is operated by a control device 20 (see FIG. 3).

  During the warping process, at the “position a” and “position b”, which are active operation positions, the yarn guide 14 pulls the yarn 21 out of the rotary creel 7 and feeds it onto the conveyor belt 2. The yarn layer 22 is generated on the peripheral surface. In “position c” which is a negative position, the yarn guide 14 guides the unnecessary yarn 21 ′ into the gap 23 between the conveyance belt 2 and the yarn guide support 15, and is unnecessary led to this gap. The yarn 21 'is not involved in the warping operation. These yarns 21 ′ guided to the gap are fed onto the auxiliary transport device 24. The auxiliary conveying device 24 is configured, for example, in the form of a wire-like monofilament plastic yarn (wire-like monofilament plastic filament), and the monofilament plastic yarn constituting the auxiliary conveying device 24 is unwound from a storage roll 25. Then, it is guided to the drive device 26 via both hollow shafts 12 and 13. Next, the waste yarn layer 27 made of the yarn 21 ′ fed from the “position c” is formed on the auxiliary conveying device 24 having the yarn form, and the waste yarn layer 27 is collected in the waste container 28. It is configured to be able to.

  Rotating motion (swivel motion) of the lever 18 on the circumferential surface of the warping drum 1 and displacement operation in the axial direction of the yarn guide 14 with respect to the yarn guide support 15 and the warping drum 1 organically coupled thereto. Thus, the yarn 21 can be fed on the conveying belt 2 on the one hand, and the yarn 21 ′ can be prevented from participating in the warping process on the other hand. At the same time, it is possible to wind a warp band having a large number of yarns and a warp band having a small number of yarns around the circumferential surface of the warp drum 1 in a single warping process.

  The yarn guide 14 operates so that a wound layer (yarn layer) 22 having a conical front is formed during the warping process. In other words, each time the yarn guide 14 circulates around the warping drum 1, for example, the yarn guide 14 is moved in the axial direction by a dimension three times the yarn thickness.

  The conveyor belt 2 is sufficient to wind a new warp band after one warp band has been formed, that is, after it has been wound as a warp band by the number of revolutions essential for obtaining the length of the pattern warp. Is moved in the axial direction by a distance such that a large space can be formed in the area in front of the warping drum 1. In some cases, this axial movement of the conveyor belt 2 must be taken into account when controlling the movement of the yarn guide 14.

By the way, when the warp bands of different numbers of yarns are wound around the circumferential surface of the warping drum 1, these warp bands require spaces of different sizes (lengths in the axial direction) in the axial direction of the warping drum 1. Therefore, the speed of the conveyance belt 2 is adjusted so as to coincide with the average speed of one repeat. For example, one repeat is formed of a total of 100 yarns, these yarns are composed of 10 warp bands, and the ratio of the number of yarns per warp band is 12-12-8-8-12-12-8- In the case of 8-12-8, the speed of the conveying belt 2 is set (adjusted) to a value suitable for forming a warp band composed of 10 yarns. In this case, when the conveyor belt 2 winds 12 warp bands, it travels too slowly for the number of yarns, and when it winds 8 warp bands, it travels too fast for the number of threads. become. Accordingly, basically, after winding 12 warp bands on the warping drum 1, there is not enough space in the operating area of the yarn guide 14 to wind the next warp band. .
For this reason, in order to provide a sufficient space for winding the next warp band, the yarn guide support 15 is relative to the warping drum 1 in the direction indicated by the arrow 29 (see FIG. 2). Moved to. That is, when a warp band composed of 12 yarns is wound and the process proceeds to the step of winding the next warp band, the thread guide support 15 is moved slightly to the right at the arrow 29 in FIG. On the contrary, when a warp band composed of only eight yarns is wound and the process proceeds to the next step of winding the warp band, the thread guide support 15 is moved in the left direction at an arrow 29 in FIG.

  In another embodiment, the yarn guide support 15 is not moved in the axial direction of the warping drum 1 or not only the yarn guide support 15 is moved, but also the warping drum 1 itself is moved to achieve the desired relative Natural exercise is also possible.

  Since the yarn guide support 15 is coupled to the rotary creel 7, the rotary creel 7 is also moved together in the above configuration.

  Next, FIG. 4 is shown to correspond to FIG. 2 to show some other possibilities that can perform the above-described operation. In FIG. 4, the same as FIG. 1 to FIG. Elements have the same reference numbers.

  The warping drum 1 according to this embodiment is rotatably supported by a support body 30, and the support body 30 is supported on the floor F via a roller 31 that is movable in the axial direction. The motor 33 disposed at a fixed position drives a screw spindle (referred to as a spindle having a male screw formed on the outer periphery) 34, and the screw spindle 34 is engaged with the female screw 35 of the support 30. Therefore, when the motor 33 is driven, the screw spindle 34 rotates to displace the support 30 in the direction indicated by the double arrow 129.

  As another configuration or an additional configuration, the support 36 on which the rotary creel 7 and the yarn guide support 15 are supported may be configured to be supported on the floor F via a roller 37. it can. The support 36 includes a driving device 38, which drives a gear 39, and the gear 39 may be configured to mesh with a rack 40 fixed to the floor F.

  Of course, it is possible to drive only one of the support 30 and the support 36 or to drive both the support 30 and the support 36. . That is, the support 30 can be driven via the gear 39 and the rack 40, and the support 36 can be driven via the screw spindle 34 and the female screw 35.

  Since the relative movement of the double arrow 129 in each direction is relatively small in distance, a small drive is sufficient. However, the relative movement must occur very quickly. In conclusion, however, it is basically sufficient for each of the drive devices to operate to overcome the yarn number difference that occurs between the individual warp bands.

  In the above embodiment, a partial warp for pattern warp is described which has a warping drum 1 fixed during aging and a rotating yarn guide support 15. However, it is of course possible to rotate the warping drum 1 while keeping the yarn guide support 15 non-rotatable during aging. Even in this configuration, the warp drum 1 and the yarn guide support are provided to always provide a necessary space on the conveying belt 2 in order to wind the warp bands having different numbers of yarns around the warp drum 1 with uniformity. 15, relative movement in the axial direction (the same direction as the direction indicated by the double arrow 129) is performed.

  The pattern warp partial warper and the method for producing a pattern warp according to the present invention can be used for the production of a pattern warp and the like.

It is a perspective view which shows the whole structure of the partial warp for pattern warps which abbreviate | omitted the yarn guide and the yarn guide support body. FIG. 2 is a schematic partial longitudinal sectional view of the pattern warp partial warper of FIG. 1 illustrating a yarn guide and a yarn guide support. It is a partial expansion perspective view which shows a schematic structure with the thread guide of a thread guide support body. FIG. 3 is a schematic partial longitudinal sectional view corresponding to FIG. 2, showing a schematic configuration of a pattern warp partial warper capable of relatively moving the warp drum and the yarn guide support in the axial direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Warping drum 2 ... Conveying surface 7 ... Creel 14 ... Yarn guide 15 ... Yarn guide support 21 ... Yarn

Claims (12)

A plurality of conveying surfaces (2) movable in the axial direction of the warping drum (1) are arranged on the circumferential surface of the warping drum (1), and a plurality of yarns are arranged on the yarn guide support (15). The yarn guide (14) has a creel (7). The yarn guide (14) pulls out the yarn (21) from the creel (7), and the warping drum (1) and the yarn guide (14) In a partial warp for pattern warp that is movable relative to each other in the circumferential direction of the warping drum (1),
The warp partial warp for a warp, wherein the warp drum (1) and the yarn guide support (15) are movable relative to each other in the axial direction.   The yarn guide support (15) and the creel (7) are connected to each other in the axial direction of the warping drum (1), and the warping drum (1) and the creel (7) are connected to each other in the axial direction. The partial warp for pattern warp according to claim 1, wherein the warp is relatively movable.   The partial warper for pattern warp according to claim 1 or 2, wherein the transport surface (2) has a drive device that can be set to a constant speed.   The speed of the driving device is set to a value lower than the speed essential for the maximum width warp band and higher than the speed essential for the minimum width warp band. Partial warping machine for pattern warp.   The partial warping machine for a handle warp according to any one of claims 1 to 4, wherein the yarn guide (14) is movable in the axial direction with respect to the yarn guide support (15).   The said thread | yarn guide (14) is equipped with the drive device (19) which leaves | separates the thread | yarn guide (14) itself from the front of the warping drum (1) for every circumference | surroundings by a predetermined distance. Partial warping machine for patterned warp.   The warp drum (1) and / or the yarn guide support (15) has a spindle transmission (33-35), for a handle warp according to any one of the preceding claims. Partial warping machine.   The warp drum (1) and / or the yarn guide support (15) has a rack and pinion drive (39, 40), the handle warp according to any one of claims 1 to 7, Partial warping machine. The yarn guide (14) attached to the yarn guide support (15) guides the warp band composed of a plurality of yarns (21) around the circumferential surface of the warping drum (1), where the axial direction In the method for producing a patterned warp, the yarn is fed onto the transport surface (2) that is moved to and changed so that the number of yarns per warp band is different between at least two warp bands,
A method characterized in that the warping drum (1) and the yarn guide support (15) move relatively in the axial direction.   10. Method according to claim 9, characterized in that the transport surface (2) moves at a constant speed.   11. Method according to claim 10, characterized in that the conveying surface (2) moves at a speed that matches the average speed of all the warp bands of one repeat.   The warping drum (1) and the yarn guide support (15) move at the time of transition between two warp bands, and move so that both warp bands are linked. 12. The method according to any one of 11 above.

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