JP2008127736A - Patterning auxiliary device for knitwear machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To expand possibility of patterning more than that produced by a conventional patterning auxiliary device. <P>SOLUTION: The patterning auxiliary device has a yarn locking means (4) for locking patterning yarns (2) and a fastening mechanism (6) for holding the patterning yarns (2), wherein the thread locking means (4) and the fastening mechanism (6) are separated from each other. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a patterning auxiliary device for a warp knitting machine having a thread locking means that can be locked to a pattern thread and a tightening mechanism for holding the pattern thread.

Such a patterning auxiliary device of a warp knitting machine is known, for example, from Japanese Patent Application Laid-Open No. 2004-151867. The thread locking means has a selection hook that can be moved into the yarn path of the handle thread to grip the handle thread. Next, the selection hook is pulled back together with the gripped handle yarn, and then the yarn is sandwiched between the selection hook itself and the hook guide. In the usual case, the pattern yarn is then cut in the vicinity of the selection hook and is not further knitted into the base fabric of the knitted fabric. Therefore, for example, it is possible to generate the pattern of the pattern arranged separately from each other in the knitting direction of the knitted fabric.
German Patent Invention No. 19514995

  An object of the present invention is to expand the possibilities of further patterns that can be generated by a conventional patterning auxiliary device.

  The above-mentioned problem is solved by separating the thread locking means and the tightening mechanism from each other in the patterning auxiliary device of the type pointed out at the beginning.

That is, in the case of such a patterning auxiliary device, the thread locking means can still grip the pattern thread and remove the pattern thread from the pattern process. The tightening mechanism is configured separately from the thread locking means, and this separate structure is usually provided by arranging them separately from each other, so that the handle thread is inserted into the tightening mechanism. Thread locking means can be used to do this.
When the handle yarn is inserted into the tightening mechanism, the handle yarn is firmly held there with a constant force, and a loop is formed on the tightening mechanism side facing the yarn locking means. The yarn tension caused by the corresponding movement of the locking means is reduced.
That is, the thread locking means can be easily released from the handle yarn without cutting the handle yarn here.
The clamped handle yarn can then be withdrawn from the clamping mechanism without being cut during further knitting steps.
This gives rise to the possibility of new patterning, and the patterning that can be generated is expanded.
In other words, the handle yarn exists simply in an extended state between the two joints where the handle yarn is knitted into the base fabric, and in this region the handle yarn floats from the base fabric, that is, no longer with the base fabric. It is no longer stuck. Such a condition helps to create another visual appearance, or such a knitted structure can be utilized to cut the floated yarn at both ends.
This is simpler than when the pattern yarn attached to the base fabric is forcibly floated. This is because a long handle yarn that floats can be easily lifted from the base fabric to cut it. Furthermore, the advantage of this arrangement is that the selection hook can be removed from the pattern yarn again after one revolution of the knitting machine, and thus the selection hook can be used to grip another pattern yarn or another pattern yarn area. . This gives rise to another possibility of giving a new pattern.
The thread locking means is mainly configured as a hook (also referred to as a selection hook) that is movable toward the tightening mechanism in order to release the handle thread. The loop of the handle yarn formed by the hook is in a state where no tension is applied when the handle yarn is fastened and firmly held in the fastening mechanism. However, the hook can be moved relatively easily away from the loop that has lost its tension. If the hook has released the loop, the pattern yarn can be removed from the clamping mechanism under the tension of the knitted fabric moving forward in the knitting direction, and each of the selected lengths extending between the two joining points can be selected. Patterned yarn is provided. It is also possible to store and hold a plurality of loops simultaneously in the tightening mechanism, and the loops are not necessarily required to have the same dimensions because the knitting process proceeds. Here, it should be noted that the patterning auxiliary device preferably has a number of the tightening mechanisms and yarn locking means arranged over the entire knitting width of the warp knitting machine, and basically each pattern yarn. One corresponding handle control device is provided for the purpose.

  Preferably, a corresponding support tool corresponding to the tightening mechanism is provided. This corresponding supporter acts so that the handle yarn can always be drawn into the tightening mechanism from a predetermined direction. In addition, the corresponding support tool also functions as a kind of hook reference point for releasing the hook from the loop formed by the handle yarn sandwiched between the tightening mechanisms.

  It is preferable that the corresponding support tool mainly has a form of a wire attached to a plurality of tightening mechanisms arranged side by side. In the simplest case, this wire can be provided continuously over the entire knitting width of the warp knitting machine.

  As a preferred configuration, the tightening mechanism includes a passage having an opening and a tightening portion. The width of this passage is made larger than the thickness of the handle yarn. By comprising in this way, it becomes comparatively easy to introduce the handle yarn into the passage. When the pattern yarn is then further inserted into the passage, the pattern yarn reaches the clamping point and is held firmly there.

  Mainly, it is preferable that the tightening portion has at least one elastically deformable pressing portion. According to this configuration, the tightening force indispensable for holding the handle yarn firmly is achieved by the deformation of the pressing portion. With this configuration, the handle yarn is protected. This is because the handle yarn to be held itself is only slightly deformed.

  It is preferable that the tightening portion is mainly configured in a straight line. The straight line referred to here is not a straight line in a strict mathematical sense. When the tightening portion is configured in a straight line, the handle yarn is held along the straight line. In such a configuration, the tightening force acting on the handle yarn can be adjusted relatively accurately. The tightening portion configured in a straight line can also hold a plurality of areas of one pattern yarn or a plurality of pattern yarns at the same time.

  It can also be configured such that the position of the tightening portion is mainly determined by the tightening body. Such a tightening body can be configured in a cylindrical form, for example. When such a tightening body is used, it becomes easy to manufacture the patterning auxiliary device. The fact that the shape of the tightening body can be variously selected in this way is also preferable in that the designer is given a certain freely selectable range when designing the tightening force.

  A preferred configuration is that the fastening body is mainly disposed in a fixture disposed between two passages, and the fastening body is configured to project (project) into both passages. It becomes. That is, the preferred point that a single clamping body is used for the two passages is that one clamping body can hold the handle yarn firmly in the two passages.

  The position of the tightening portion may be determined by a bristle element. This is because this bristle element can also generate a required holding force for the handle yarn.

  Preferably, a chamber (space) is formed at the rear (back) of the tightening portion. This chamber can receive a pattern yarn that is pushed further from the clamping area by another subsequent pattern yarn or other part of the pattern yarn after the clamping process. In such a case, a plurality of yarns or a plurality of portions of one yarn can be securely and easily held firmly in one tightening mechanism, and at the same time, these yarns are not entangled with each other. Can be held.

  As an optional configuration, the clamping part is formed by two plates, and these plates abut each other in the area of the clamping mechanism, or these plates are smaller than the thickness of the handle yarn. It can be constituted so that it may be arranged. In the case of such a configuration, the region for tightening is configured in a planar manner.

  According to the patterning auxiliary device of the warp knitting machine according to the present invention, the possibility of the pattern can be further expanded as compared with the conventional patterning auxiliary device.

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

  FIGS. 1A to 1C are diagrams showing the configuration of the take-out tightening sinker 1 when the patterning auxiliary device of the warp knitting machine is implemented in the form of the take-out tightening sinker 1. This take-off clamping sinker 1 is used to hold the selected handle yarn 2 for a short time and then release it again.

  For this reason, many take-off tightening sinkers 1 are held by one holder (unit) or bar 3. The take-out tightening sinkers 1 are arranged over the entire knitting width of the warp knitting machine, and the take-out tightening sinkers 1 are mainly arranged with the same dimensions (intervals) as the needle gauge dimensions (intervals). . These take-out tightening sinkers 1 are configured so that each of the handle yarns 2 can be selected.

The take-off tightening sinker 1 cooperates with a selection hook (hook) 4 that can be locked to the handle yarn 2 to take out and tighten the handle yarn 2. For this reason, the selection hook 4 is first moved from the position shown in FIG. 1 (a) to a position directly above the take-out tightening sinker 1, and then moved to the left to take out and tighten it. Enter the yarn path of handle yarn 2. On the other hand, the handle yarn 2 is moved in the form of overlap or underlap by the corresponding movement of the handle guide bar (not shown) and comes on the selection hook 4. From the above state, the selection hook 4 is again moved to the lower right and moved to the position shown in FIG. By such an operation, the selection hook 4 locks the pattern yarn 2 to be selected.
It is of course possible to perform the same function by moving the pick-up and tightening sinker 1 upward or downward in the vertical direction instead of moving the selection hook 4 directly above or below.

  When the selection hook 4 engages the handle yarn 2 by the above operation and is moved to the position shown in FIG. 1 (a), the handle yarn 2 is pulled by the corresponding support 5 made of a wire, It is sandwiched by the tightening mechanism 6. By this pinching, the loop 7 of the handle yarn 2 formed on the corresponding support 5 can be brought into a tension-free state. Accordingly, the selection hook 4 can be detached from the loop 7 of the handle yarn 2 by moving in the left direction in FIG. In such a state, the pattern yarn 2 is always still tightened in the tightening mechanism 6, but the selection hook 4 detached from the loop 7 may be located at another part of the pattern yarn 2 or at the same position or adjacent. It can be used again to grasp (lock) and select another handle yarn guided to a position.

  When the handle yarn 2 is not locked by the selection hook 4, it can be pulled out from the tightening mechanism 6. That is, when the pattern yarn 2 is knitted on the base fabric of the knitted fabric, a necessary knitted fabric web is newly knitted on the patterned yarn 2 by the progress of the knitting operation. A corresponding tensile force acts, but this tensile force pulls the handle yarn 2 from the tightening mechanism 6.

  Next, FIGS. 1B and 1C show the configuration of the tightening mechanism 6. FIG. 1B is a cross-sectional view taken along the line bb in FIG. ) Is a partial plan view showing a configuration of a main part of two take-off tightening sinkers 1.

  Each take-off and tightening sinker 1 has a passage 8, and the opening 9 of the passage 8 has a passage width dimensioned so that the selection hook 4 can insert the handle yarn 2 into the passage 8 without any problem.

  A part of the tightening mechanism 6 is formed by an elastic plate (one form of the pressing portion) 10, and the elastic plate 10 cooperates with an adjacent side wall 11 of the take-out tightening sinker 1. The elastic plate 10 has a sliding surface 12, and the handle yarn 2 can slide on the sliding surface 12 in the tightening mechanism 6. When the handle yarn 2 is drawn into a tightening portion 17 formed between the elastic plate 10 and the side wall 11, the handle yarn 2 is held by a frictional force between the elastic plate 10 and the side wall 11. The handle yarn 2 can be pulled out of the tightening mechanism 6 again by applying a tensile force to the handle yarn 2.

  Next, another embodiment of the present invention shown in FIG. 2 will be described. In this embodiment shown in FIG. 2, the same reference numerals are given to the same or corresponding components as those in the embodiment shown in FIGS. 1 (a) to 1 (c). FIG. 2B is a cross-sectional view taken along the line bb in FIG. FIG. 2C is a partial plan view showing a configuration of a main part when the take-out tightening sinker 1 is viewed from above.

  The clamping mechanism 6 according to this embodiment is configured in a straight line, as is apparent from FIG. The take-off tightening sinker 1 has a tip portion (one form of the pressing portion) 13 bent in a triangular shape, and a triangular protrusion (vertex portion) of the tip portion 13 is directed to the side wall 11 (side). It is formed towards. The distance between the apex of the triangular protrusion of the tip 13 and the side wall 11 is smaller than the thickness of the handle yarn 2. In addition, in this embodiment, at least the tip portion 13 is formed of an elastic material, and thus the thick handle yarn 2 can be tightened by slightly compressing (deforming) the tip portion 13.

  A chamber (space) 14 is formed behind or behind the tightening mechanism 6 (rightward in FIG. 2A). The chamber 14 is separated from the tightening mechanism 6 by the subsequent handle yarn 2. The handle yarn 2 pushed downward in FIG. 2A can be received.

  As can be seen from this configuration, the tightening mechanism 6 tightens only a portion located in one area (part) 15 of the handle yarn 2 supplied from a yarn supply section (not shown), that is, from the handle guide bar. The part located in another area (part) 16 of the patterned yarn 2 that brings about the knitted fabric is not tightened. Such a configuration is sufficient to remove the pattern yarn 2 from the patterning of the knitted fabric without cutting.

  Furthermore, in another embodiment illustrated in FIGS. 3A to 3C, the same or corresponding components as those in the embodiment illustrated in FIGS. 1A to 1C are denoted by the same reference numerals. It is. FIG. 3B is a cross-sectional view taken along the line bb in FIG. FIG. 3C is a cross-sectional view taken along the line cc of FIG.

  In this embodiment, the tightening mechanism 6 has a tightening portion 17, which is formed by a wall (side wall) 11 and a tightening body (one form of a pressing portion) 18 of the take-out tightening sinker 1. Is formed. The fastening body 18 may be configured in a cylindrical shape as in this embodiment, for example. The fastening body 18 is held by an intermediate wall (one form of fixture) 19, and the intermediate wall 19 separates the wall 11 and the adjacent wall 11 into two passages 8. Accordingly, the tightening body 18 projects (projects) in the two passages 8, and forms two tightening portions 17 in the two adjacent passages 8. Also in this embodiment, a chamber (space) 14 is provided behind the tightening portion 17, and a subsequent area (location) where the handle yarn 2 is held or another handle yarn 2 is further in the tightening portion. When trying to position, the handle thread 2 in the clamping part can be pushed into the chamber 14.

  Further, in the configuration according to another embodiment illustrated in FIGS. 4A to 4C, the fastening body 18 is also provided in the same manner as in the embodiment illustrated in FIG. In this case, the operation of the tightening body 18 is supported (assisted) by each one spring 23. The other points are the same as those described with reference to FIGS.

  5 (a) to 5 (c), a part of the tightening mechanism 6 is formed by the bristle element 20, and the bristle projecting laterally from the bristle element 20 is used. The handle yarn 2 is pressed against the wall (side wall) 11 of the take-out tightening sinker 1 by the bristles 21 of the element 20. The bristles 21 act on the handle yarn 2 with a sufficient force, and the handle yarn 2 can be clamped between the wall 11 and firmly held.

  The bristle element 20 is preferably placed in a holder 22 unique to this embodiment.

  Alternatively, the bristle element 20 can be taken out and placed in the tightening sinker 1.

  When the bristles 21 are used, as another embodiment, the holding of the handle yarn 2 for a short time may be brought about not by tightening action but by fastening the handle yarn 2 with the bristles 21. it can. Of course, it can also be held by a combination of tacking and tightening.

  In all the embodiments described above, the pattern yarn 2 is held in the take-out tightening sinker 1 which is a patterning auxiliary device, and when the necessary knitted fabric web is newly knitted by executing the knitting process, the knitting is performed. The pattern yarn 2 is gradually pulled out from the take-out tightening sinker 1 by the pulling action resulting from the above, and the handle yarn 2 is completely removed from the take-out tightening sinker 1. Thereby, for example, it is possible to float the pattern yarn 2 from the knitted fabric, and the pattern yarn 2 in the area floated from the knitted fabric has a length longer than the straight length of the section. It will no longer be in a state of sticking, that is, it will float from the surface of the knitted fabric, so that it can be easily cut off later. Moreover, the floating part can also be used as a handle.

  The warp knitting machine pattern assisting device according to the present invention can be used for warp knitting machines and the like.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the handle arrangement auxiliary | assistance apparatus of the aspect of the extraction clamp | tightening sinker concerning the 1st Embodiment of this invention, (a) is a side view, (b) is bb arrow sectional drawing of (a), ( c) is a partial plan view of the main part of (a). It is a figure which shows the patterning auxiliary | assistance apparatus of the aspect of the extraction clamp | tightening sinker concerning the 2nd Embodiment of this invention, (a) is a side view, (b) is bb arrow sectional drawing of (a), c) is a partial plan view of the main part of (a). It is a figure which shows the handle arrangement auxiliary | assistance apparatus of the aspect of the extraction clamp | tightening sinker concerning the 3rd Embodiment of this invention, (a) is a side view, (b) is bb arrow sectional drawing of (a), ( c) is a sectional view taken along the line cc of FIG. It is a figure which shows the handle arrangement auxiliary | assistance apparatus of the aspect of the extraction clamp | tightening sinker concerning the 4th Embodiment of this invention, (a) is a side view, (b) is bb arrow sectional drawing of (a), ( c) is a sectional view taken along the line cc of FIG. It is a figure which shows the handle assistance apparatus of the aspect of the extraction clamp | tightening sinker concerning the 5th Embodiment of this invention, (a) is a side view, (b) is bb arrow sectional drawing of (a), ( c) is a partial plan view of the main part of (a).

Explanation of symbols

2 ... Pattern yarn 4 ... Thread locking means 6 ... Tightening mechanism

Claims (12)

In a warp knitting machine pattern assisting device having a thread locking means capable of locking a pattern thread and a tightening mechanism for holding the pattern thread.
The device characterized in that the thread locking means (4) and the tightening mechanism (6) are separated from each other.   The said thread | yarn latching means (4) is comprised by the hook which can be moved toward the said clamping mechanism (6) in order to release a handle | thread thread | yarn (2). apparatus.   3. A device according to claim 1 or 2, characterized in that a corresponding support (5) corresponding to the clamping mechanism (6) is provided.   4. The device according to claim 3, wherein the corresponding support tool (5) is composed of a wire rod attached to a plurality of the fastening mechanisms (6) juxtaposed.   Device according to any one of the preceding claims, characterized in that the clamping mechanism (6) comprises a passage (8) with an opening (9) and a clamping part (17). .   6. Device according to claim 5, characterized in that the clamping part (17) has at least one elastically deformable pressing part (10, 13, 18, 21).   7. Device according to claim 5 or 6, characterized in that the clamping part (17) is linear.   The device according to any one of claims 5 to 7, characterized in that the position of the clamping part (17) is determined by a clamping body (18).   The clamping body (18) is arranged in a fixture (19) arranged between the two passages (8), and the clamping body (18) projects into both passages (8). 9. The device according to claim 8, wherein:   Device according to any one of claims 5 to 9, characterized in that the position of the clamping part (17) is determined by the bristle element (20, 21).   11. A device according to any one of claims 5 to 10, characterized in that a chamber (14) is formed behind the clamping part (17).   The fastening part (17) is formed by two plates (10, 11), and these plates (10, 11) abut against each other within the region of the fastening mechanism (6) or handle. 7. Device according to claim 5 or 6, characterized in that they are arranged with a mutual distance smaller than the thickness of the yarn (2).

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