JP5081892B2 - Partial warper for patterned warp and method for producing patterned warp - Google Patents

Abstract

The sample warper (1) has a thread guiding device comprising a thread guide that is displaceable between a position in front of an end face of a warping drum (2) in an axial direction and another position behind the end face of the warping drum. The thread guiding device is non-rotatable with respect to an axis of the warping drum. The warping drum comprises a warp drive (7) operated in a rotation direction (8). An auxiliary transport device (13) comprises rotary drives (19, 21) that are operated simultaneously with the warp drive. An independent claim is also included for a method for producing a sample warp.

Description

   The present invention provides a warping drum in which a plurality of conveying surfaces movable parallel to the axis of the warping drum are arranged on the peripheral surface thereof, a position in front of the end surface of the warping drum in the axial direction, and an end surface of the warping drum. Partial warp for pattern warp yarn having a yarn guide mechanism having at least one yarn guide displaceable between the rear position and an auxiliary conveyance mechanism movable through the end face in parallel to the axis of the warp drum Regarding economics.

  The present invention is further a method for producing a patterned warp yarn, wherein the yarn is fed on a conveying surface which is arranged on the peripheral surface of the warping drum and is movable parallel to the axis of the warping drum, The yarn that is not required is moved by the yarn guide in front of the end surface of the warping drum and wound around the auxiliary transport mechanism, and this auxiliary transport mechanism passes through the end surface of the warping drum in parallel with the axis of the warping drum. Related to moving things.

  Such a partial warp for pattern warp is known from, for example, “Patent Document 1”. When the yarn is wound around the peripheral surface of the warping drum by the yarn guide mechanism, the warping drum is fixed so as not to rotate, and the yarn guide moves. The yarn guide removes the yarn from a rotating creel that rotates at the same speed as the yarn guide.

  In the partial warp for pattern warp known from “Patent Document 2”, the warp drum rotates when the yarn is wound around the peripheral surface of the warp drum. The yarn guide is held non-rotatable about the axis of the warping drum, and the yarn can be pulled out from a bobbin arranged in a stationary creel. In doing so, if the yarn is excluded from the patterning process, i.e. not guided around the circumference of the warping drum, these yarns are aided with a diameter of 1/5 to 1/10 of the diameter of the warping drum. It is wound on a winding tube.

European Patent Application Publication No. 1930489 International Patent Publication No. 2006/055656 Pamphlet

  In the partial warping machine for the handle warp described in Patent Document 1, many different yarns and a correspondingly large number of bobbins are required to produce a large number of patterns. When the number of bobbins exceeds a certain number, it becomes difficult to form a rotating creel that can use a desired number of bobbins.

  In the case of the partial warp for the handle warp described in Patent Document 2, only a limited space for receiving unnecessary yarns is available on the auxiliary winding tube. At that time, the yarn consumption is relatively large.

  An object of the present invention is to provide a partial warper for pattern warp and a method for producing a pattern warp that can achieve high productivity.

  The problem is that in the type of warp partial warper of the type indicated at the beginning, the warp drum has a warp driving device in which the yarn guide mechanism cannot rotate around the axis of the warp drum, and the warp driving device is driven in the rotational direction. However, the problem is solved by having the auxiliary transport mechanism having a rotational drive device that drives simultaneously with the warp drive device.

  This arrangement makes it possible to take advantage of the rotating warping drum and at the same time to minimize unnecessary yarn consumption. This is achieved because the auxiliary transport mechanism moves in two directions. On the other hand, the auxiliary transport mechanism moves in the axial direction of the warping drum. That is, when a plurality of yarns are overlapped and wound, a large diameter does not occur. On the other hand, the auxiliary transport mechanism rotates and continuously maintains a constant tension in the yarn that is not wound on the circumferential surface of the warping drum. Therefore, it is avoided that a false tension or even a thread break is caused by a thread without tension. If the yarn is excluded from the warping process and later used again, these yarns form a “V” as the lowest point with the auxiliary transport mechanism. These yarns are fixed on the auxiliary transport mechanism. These yarns are fed and are often wound by multiple layers. By adjusting the rotation speed of the auxiliary conveyance mechanism to the rotation speed of the warping drum, it is possible to avoid that these “V” yarns are excessively loosely or excessively strongly tensioned to cause “tearing”.

  Preferably, the auxiliary transport mechanism is flexible with respect to bending and has a tightening mechanism, and the tightening mechanism maintains the auxiliary transport mechanism in an extended state in the operating region, and the tightening mechanism and the rotation driving device are It is gathered at least at one end of the working region. The thinner the auxiliary transport mechanism can be implemented, the lower the amount of yarn material consumption of yarn temporarily excluded from the patterning process. For example, a thin auxiliary transport mechanism that can be formed as a string or wire has very little rigidity and is flexible to bending. A tightening mechanism used to still allow winding is to maintain the auxiliary transport mechanism in an extended state, and preferably hold along the axis of the warp drum. In that case, the heel clamping mechanism and the rotary drive device act together on the auxiliary transport mechanism at at least one end. This gives a relatively simple structure.

  Preferably, the rotational driving device is configured to act on the auxiliary transport mechanism at two positions having a mutual distance in one direction parallel to the axis of the warping drum. That is, the auxiliary transport mechanism is driven, for example, at both axial ends of the operating region. Thus, the torsion of the auxiliary transport mechanism can be kept small. Therefore, the possibility that the auxiliary transport mechanism is broken is reduced.

  In that case, it is preferable that the said rotational drive device drives an auxiliary conveyance mechanism at the same rotational speed in both positions. That is, the auxiliary transport mechanism is not subjected to torsion. Accordingly, the auxiliary transport mechanism only has to withstand the tension of the tightening mechanism and the tension of the yarn wound around the auxiliary transport mechanism. This makes it possible to implement the auxiliary transport mechanism at a low cost.

  Preferably, the rotational driving device is configured to drive the auxiliary transport mechanism at a rotational speed that matches the maximum rotational speed with the rotational speed at which the warp driving device drives the warping drum. In that case, the rotary drive device can be controlled to maintain a sufficient tension in the yarn that is excluded from the warping process and at the same time to keep the yarn consumption small. This is often possible when the rotary drive operates at a much lower rotational speed than the warp drive. When the V yarn is present, it may be meaningful to use the same rotational speed. For example, when there is only a yarn that has temporarily become “V” during the warping process because the yarn that has become “V” will be cut later, the time portion without the yarn that has become “V” It is meaningful to reduce the rotation speed within the range.

  Preferably, the warp driving device and the rotation driving device are synchronized with each other. This means that a predetermined ratio can be adjusted between the rotational speed of the warp drive and the rotational speed of the rotary drive.

  Preferably, the auxiliary transport mechanism is configured to pass through the warping drum in the axial direction. In this way, it is possible to avoid having to house various parts of the auxiliary transport mechanism, such as a tightening mechanism or a rotary drive device, inside the rotating warping drum. In this way, the structure can be kept simple.

  Preferably, a foreign substance receiving portion that rotates together with one end of the auxiliary transport mechanism is arranged at this end of the auxiliary transport mechanism. This contaminant receiver can have several configurations. The foreign matter receiving portion may be a collecting container that rotates together with the auxiliary conveyance mechanism, or may be a bobbin around which the end of the auxiliary conveyance mechanism is wound.

  Preferably, the warping drum is supported on a base by a hollow shaft, and the auxiliary transport mechanism is inserted through the hollow shaft. That is, the function of the auxiliary transport mechanism is not hindered by the support portion of the warping drum.

  Preferably, the auxiliary transport mechanism has a bobbin at each end so that the bobbin can rotate about the bobbin axis and the axis of the warping drum. Rotation about the bobbin axis can be used to maintain tension within the auxiliary transport mechanism. Rotation about the axis of the warping drum is used to maintain tension in the yarn wound on the auxiliary transport mechanism.

  Preferably, an auxiliary winding region is formed in front of the end surface of the warping drum, and a support mechanism for the auxiliary transport mechanism is arranged beside the auxiliary winding region. The auxiliary winding area is an area for winding a yarn that is not required during the patterning process by the yarn guide to be wound around the auxiliary conveyance mechanism. Next, in the case of a fixed creel, all of these yarns apply a tensile force to the auxiliary transport mechanism from essentially the same direction. The support mechanism can counter this tensile force, and deformation of the auxiliary transport mechanism can be suppressed to a small level.

  The problem is that in the method of the type indicated at the beginning, when the yarn is fed onto the conveying surface, the warping drum rotates, and at least one yarn is guided before at least the end surface of the warping drum. This is solved by the rotation of the transport mechanism.

  With this configuration, a relatively high speed can be achieved when winding the yarn. The thread can be withdrawn from the fixed creel. Yarn that is not required for pattern formation can subsequently be guided in front of the end face of the warping drum, and then forms the “V” yarn. By turning the auxiliary transport mechanism, a constant tension is maintained in these “V” yarns. Since the auxiliary conveyance mechanism moves also in the axial direction of the warping drum, no yarn accumulation that causes an excessive diameter is formed here. Thereby, the yarn consumption of the yarn which is not required is suppressed to a small amount.

  At that time, it is preferable that the auxiliary conveyance mechanism rotates at a minimum speed that generates a predetermined minimum tension in each yarn wound around the auxiliary conveyance mechanism. That is, the peripheral speed of the auxiliary transport mechanism can be selected to be much lower than the peripheral speed of the warping drum, and the required tension is maintained in each yarn wound around the auxiliary transport mechanism. Misfeeds or thread breaks are reliably avoided. When there is a “V” yarn, the rotational speed of the auxiliary transport mechanism can be increased to the rotational speed of the warping drum.

  Preferably, the auxiliary transport mechanism is supported laterally of the auxiliary winding area. As a result, as described above, it is possible to prevent the auxiliary transport mechanism from being deformed beyond a specific level due to the action of the tensile force applied from the yarn.

  According to the apparatus and method configured as described above, it is possible to provide a pattern warp partial warper that can achieve high productivity and a method for manufacturing a pattern warp.

It is the perspective view shown in the form which expressed the partial warping machine for handle warps remarkably. FIG. 2 is a side view showing a pattern warp partial warping machine in a remarkably schematic form.

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

  A pattern warp partial warper 1, which can also be called a short warp partial warper, has a warp drum 2, and this warp drum 2 is rotatably supported by a base 3. Therefore, as can be seen from FIG. 2, the warping drum 2 is fixed to the hollow shaft 4 supported in the base 3 via the two bearings 5, 6, and the warp driving device 7 schematically shown. As shown by the arrow 8, it can be rotated. A plurality of conveying surfaces 9 are distributed on the circumferential surface of the warping drum 2, and the conveying surface 9 (see FIG. 2) is configured to be able to move parallel to the axis of the warping drum 2. Yes. The transport surface 9 can be formed, for example, by a rotating belt, but such a belt is not shown in detail. For details of such a belt, refer to Patent Document 1 pointed out at the beginning. Such a belt is not shown in FIG.

  A plurality of yarn feeding bobbins 10 are arranged in a stationary manner on the side of the warping drum 2 in a creel not shown in detail. That is, the yarn feeding bobbin 10 is fixedly arranged relative to the machine base 3 in any one warping process. A yarn 11 is drawn from each yarn supplying bobbin 10 and is guided by a yarn guide represented by a double arrow 12 in this embodiment. Although the yarn guide can be configured as shown in Patent Document 1, as a difference from the conventional one, the present yarn guide is configured to be non-rotatable with respect to the axis of the warping drum 2 and is adjusted. It is configured to be movable only in parallel with the axis of the warp drum 2.

  Thus, when the yarn 11 is fed to the peripheral surface of the warping drum 2 as shown in the figure or when it is temporarily not necessary for the production of the handle warp, the yarn 11 is moved forward of the end surface of the warping drum 2 (see FIG. 1 or the right side in FIG. 2 is selectable.

  The auxiliary conveyance mechanism 13 which can be formed as a string, a wire or a monofilament is passed through the hollow shaft 4, that is, penetrates the warping drum 2 and the base 3 over their entire length. The auxiliary transport mechanism 13 is configured to move into the warping drum 2 in the direction of the arrow 14 (see FIG. 2), that is, from the end surface where the yarn 11 is wound around the warping drum 2. However, the auxiliary transport mechanism 13 can be configured to move outward from the warping drum 2.

  The transport body of the auxiliary transport mechanism 13 is fed out from a bobbin 15 disposed on a stand 16 that is fixedly disposed with respect to the base 3. The bobbin 15 is braked with a predetermined force. Another bobbin 17 is disposed at the end (the left end in FIGS. 1 and 2) of the auxiliary transport mechanism 13 pulled out from the base 3, and this bobbin 17 can be driven by a driving device 18. Since the bobbin 15 is braked, the auxiliary transport mechanism 13 can be continuously held under a constant tension. That is, the conveyance body of the auxiliary conveyance mechanism 13 can be implemented by a material that is flexible and flexible, and can be implemented by a material that can exhibit an extended state when activated.

  The bobbin 15 is rotated in the direction of the arrow 20 by the rotary drive device 19. The bobbin 17 is rotated in the direction of the arrow 22 by the rotary drive device 21. Both bobbins 15 and 17 rotate about the same axis as the warping drum 2. The driving direction of the warp driving device 7 and the driving directions of both rotary driving devices 19 and 21 coincide with each other so that the arrows 8, 20 and 22 in the figure can be compared and visually confirmed. That is, when the yarn 11 is excluded from the warping process and is not temporarily fed to the peripheral surface of the warping drum 2, the yarn 11 is fed onto the auxiliary transport mechanism 13, and the auxiliary transport mechanism 13 is used as the warp drum. 2, in some cases at the same rotational speed as the warping drum 2, thereby generating a constant tension on the yarn 11 guided forward of the end face of the warping drum 2.

  The rotational speed n1 of the warping drum 2 does not necessarily need to coincide with the rotational speed n2 of the auxiliary transport mechanism 13. For example, when the yarn that has become “V” is cut because it is no longer needed, the auxiliary transport mechanism 13 can even be rotated at a slightly lower rotational speed than the warping drum 2. Nevertheless, the warping drum 2 and the auxiliary transport mechanism 13 can of course be rotated at the same rotational speed. In that case, the bobbin 17 can be fixed to the hollow shaft 4, for example. In that case, the rotary drive device 21 forms a unit with the warp drive device 7.

  When all the yarn feeding bobbins 10 are arranged on one side of the warping drum 2, the yarn 11 wound around the auxiliary conveying mechanism 13 applies a certain tensile force to the auxiliary conveying mechanism 13 with a risk of deformation. There seems to be something. In order to counter such tensile force, a support mechanism 23 is provided, and this support mechanism 23 supports the transport body of the auxiliary transport mechanism 13 in the vicinity of the region where the yarn excluded from the warping process is wound. To do. This area can also be referred to as an “auxiliary winding area”.

  The bobbin 17 not only receives the transport body of the auxiliary transport mechanism 13 but also receives the yarn wound around the auxiliary transport mechanism 13. Accordingly, the bobbin 17 can also be referred to as a contaminant receiving part.

  1 and 2 have been markedly simplified (simplified) as described above. For ease of viewing, the conveyance surface 9 (see FIG. 2) is not shown in FIG. The dividing rod, the cutting rod, and the Lees rod, which will be required later for manufacturing the original warp from the endlessly wound yarn, are also omitted from the drawing.

  By the way, if the warp yarn is wound around the warping drum 2 with the required number of yarns and the desired length, the warping drum 2 is stopped and the yarn 11 is cut in a specific region. The warp thus formed can then be transferred to the beam, with the warping drum 2 being rotated in the opposite direction.

  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 short pattern warp.

1 ... Partial warping machine for patterned warp
2 ... Warping drum
7. Warping drive device
8 ... Direction of rotation
9 ... Conveying surface
13 ... Auxiliary transport mechanism 19, 21 ... Rotation drive device

Claims (14)

A warping drum (2) in which a plurality of conveying surfaces (9) movable parallel to the axis of the warping drum (2) are arranged on the peripheral surface thereof, and in front of the end surface of the warping drum (2) in the axial direction A thread guide mechanism having at least one thread guide displaceable between the position of the warping drum (2) and a position behind the end face of the warping drum (2), and in the end face parallel to the axis of the warping drum (2). In the pattern warp partial warper (1) having an auxiliary conveyance mechanism (13) that can move through,
The yarn guide mechanism is not rotatable about the axis of the warping drum (2);
A warp driving device (7) for driving the warping drum (2) in the rotational direction (8), and the warp driving device (7) drives the warping drum (2) and at the same time the auxiliary transport mechanism (13). ) And a rotary drive device (19, 21) for rotationally driving the pattern warp partial warper. The auxiliary transport mechanism (13) is made of a soft bending material and has a tightening mechanism (15, 17);
The tightening mechanism (15, 17) can hold the auxiliary transport mechanism (13) in an extended state in an operation region of the auxiliary transport mechanism (13) , and in the operation region on the warping drum (2). Is fed to the auxiliary transport mechanism (13) without being fed,
The fastening mechanism (15, 17) and the rotary drive device (19, 21) that claims 1 pattern warp portion integer of wherein are disposed collectively at one end of at least the working area Machine.   The rotational driving device (19, 21) drives the auxiliary transport mechanism (13) at two positions having a mutual distance in one direction parallel to the axis of the warping drum (2). The partial warping machine for patterned warp according to claim 1 or 2.   The partial warping machine for a pattern warp according to claim 3, wherein the rotation driving device (19, 21) drives the auxiliary transport mechanism (13) at the same rotational speed at each position.   The rotational driving device (19, 21) drives the auxiliary transport mechanism at a rotational speed that matches the maximum rotational speed with the rotational speed at which the warping drive device (7) drives the warping drum (2). The partial warping machine for a patterned warp according to any one of claims 1 to 4.   6. The warp partial warp according to claim 1, wherein the warp driving device (7) and the rotary driving device (19, 21) are synchronized with each other.   The partial warping machine for a pattern warp according to any one of claims 1 to 6, wherein the auxiliary transport mechanism (13) passes through the warping drum (2) in the axial direction.   8. The foreign substance receiving portion that rotates together with one end of the auxiliary transport mechanism (13) is disposed at the one end of the auxiliary transport mechanism (13). A partial warping machine for a patterned warp according to claim 1.   The warping drum (2) is supported by a base (3) by a hollow shaft (4), and the auxiliary transport mechanism (13) is inserted into the hollow shaft (4). The partial warper for the handle warp according to any one of claims 1 to 8.   The auxiliary transport mechanism (13) has a bobbin (15, 17) at each end, and the bobbin (15, 17) is rotatable about the bobbin axis and the axis of the warping drum (2). The partial warping machine for a patterned warp according to any one of claims 1 to 9, An auxiliary winding area in which the warp yarn excluded from the warping process is wound is formed in front of the end face of the warping drum (2),
The partial warping machine for a pattern warp according to any one of claims 1 to 10, wherein a support mechanism (23) for an auxiliary conveying mechanism (13) is disposed laterally of the auxiliary winding area. . A method for producing a patterned warp yarn, wherein the yarn (on the conveying surface (9) arranged on the circumferential surface of the warping drum (2) and movable parallel to the axis of the warping drum (2) ( 11) is fed, and a yarn that is not needed temporarily is moved forward of the end face of the warping drum (2) by the yarn guide and wound around the auxiliary transport mechanism (13). 13) which moves through the end face of the warping drum (2) parallel to the axis of the warping drum (2),
In a state where the yarn guide is not rotatable with respect to the axis of the warping drum (2),
When supplying the yarn (11) onto the conveying surface (9), the warping drum (2) rotates,
A method characterized in that the auxiliary transport mechanism (13) rotates when at least one yarn (11) is guided at least in front of the end face of the warping drum (2). In each yarn (11) wound up by the auxiliary transport mechanism (13), the warp to be fed is generated at a minimum speed that generates a predetermined minimum tension so that the yarn is not accidentally fed or cut. 13. Method according to claim 12, characterized in that the auxiliary transport mechanism (13) rotates. The auxiliary transfer mechanism (13) is a better lateral auxiliary winding region where warp yarns are excluded from warping process is wound, according to claim 12 or 13 method wherein it is supported.

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