JPH04370255A - Passing stitch in net to be knitted into net - Google Patents

Abstract

PURPOSE:To efficiently insert passing yarn into meshes of a net in the vertical direction by feeding passing yarn from a filling yarn side, repeatedly transferring a guide plate set at a shuttle box in the order of right, left, middle and middle and knotting. CONSTITUTION:A net is knitted from warp ends 2 and filling yarn 3, an end yarn 2a is fed from a warp side and meshes of a net are formed with the end yarn at both sides of net to be knitted. A guide plate 11 as a feed guiding means of a passing yarn 10 fed from a filling yarn side is set at a shuttle box side. The guide plate is repeatedly transferred in the order of right, left, middle and middle, knots are made and the passing yarn is inserted in the vertical direction into meshes of a net to be formed from the end yarn.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of threading threads in a knitting device to pass threads through edge threads forming both sides of a fabric to be knitted.

0002

2. Description of the Related Art Conventionally, this type of reading method is well-known as disclosed in Japanese Patent Application Laid-Open No. 170564/1983. In this conventional stitching method, the edge threads are fed from the same side as the warp threads, and the stitching threads are positioned inside or outside the edge threads during knot formation. The thread is swung from side to side before hanging.

[0003] Then, a comb-shaped lifting plate is used to prevent the thread that is swung from side to side from getting caught in the upper hook, and the thread is temporarily released through the comb-like notches, and the thread is threaded. When the thread is released to the outside of the edge thread, perform three knots, and when it is released to the inside, perform one knot.
The threading thread is accurately passed through the mesh forming portion of the edge thread.

Generally, the number of warps and wefts in a knitting device is 240 to 480. For example, if the number of meshes in one mesh is 50, 4 to 8 meshes are adjacent to each other. It is set so that the nets are knitted at the same time. In this case,
Edge threads are arranged at the ends of adjacent mesh fabrics, respectively, and in order to prevent the edge threads from being knotted together, empty shuttles are placed in order to prevent the presence of weft threads in forming the adjacent mesh fabrics. At least one is disposed so that so-called empty knotting can be performed in that part.

[0005]

[Problems to be Solved by the Invention] In the conventional example described above, the use of a comb-shaped lifting plate is essential, and the configuration of the lifting plate is limited, making it difficult to use a general lifting plate that is not comb-shaped. The problem is that it cannot be immediately applied to the knitting device in use.

[0006] In addition, guide arms are individually provided for each edge yarn to allow the threads to escape inwardly and outwardly from the edge yarns of the fabric that are knitted at the same time. The guide arms corresponding to the hem yarns that are in place move in contrast during the 3:1 release action, so there is a risk that they will collide with each other when released to the outside. There are problems that must be taken into consideration.

Therefore, in the conventional example, the use of the specified lifting plate is limited, and since it is applied to a general knitting machine and the release action is 3:1, the drive of the guide arm is There is a problem that must be solved in that the motors cannot be driven uniformly in the same direction.

[0008]

[Means for Solving the Problems] As a specific means for solving the problems of the conventional example, the present invention provides a net fabric which is knitted with warp and weft yarns and is knitted with edge yarns supplied from the warp side. This is a threading method in which threading thread is simultaneously inserted into the mesh formed by edge threads on both sides of the mesh fabric, the threading thread is fed from the weft side, and the threading thread is fed to the shuttle box side. The present invention provides a method for threading a net fabric to be knitted, characterized in that the guide plate is guided by a provided guide plate, and the guide plate is repeatedly moved in the order of right, left, center, and center to knot. The plate is driven in response to the drive of the lower hook in the knitting device, and a plurality of the net fabrics to be knitted are knitted adjacently across an empty shuttle, and even in the plurality of net fabrics, one The thread is guided by two guide plates, and the guide plates are unified and repeatedly moved in the order of right, left, center, and center.

[0009]

[Operation] The thread is guided by a guide plate installed on the shuttle box side, and by repeatedly moving it in the order of right, left, middle, and middle in response to the drive of the lower hook, multiple pieces of fabric are threaded adjacently. Even when the net is knitted, the guide plate is driven uniformly and accurately for all the net fabrics to be knitted, and moreover, the threading can be carried out quickly and without any trouble.

0010

[Embodiment] Next, the present invention will be explained in detail with reference to the illustrated embodiment. In FIG. 1, a net fabric 1 knitted by a knitting device has knots 4 formed by sequentially tying warp yarns 2 and weft yarns 3. The warp yarns 2 are supplied from the bobbin via a thread swinger 5 to the knitting position, and the weft yarns 3 are supplied via a shuttle 6 to the knitting position.

In the knitting position, the knot 4 is made by hooking the warp threads 2 and/or the weft threads 3 around the upper hook 7, rotating or reversing the upper hook in a predetermined direction to form a loop, and then inserting the warp threads from within the loop using the lower hook 8. 2 and passing the shuttle 6 through the pulled-out loop, the weft thread 3 is passed through.The weft thread 3 is pulled into the loop formed by the upper hook 7, and the warp thread 2 and the weft thread 3 are pulled out from the upper hook 7. A knot 4 is formed by removing the loop. This nodule forming operation is no different from the conventional example.

[0012] Generally, a large number of the shuttles 6 are neatly arranged in parallel in a shuttle box 9 at predetermined intervals. The thread 10 is supplied from the shuttle side via the bobbin 10a.

A long guide plate 11 is provided as a supply guide means for the thread 10. As shown in FIG. 2, this guide plate 11 has the thread swinger 5
A large number of guide holes 12 corresponding to the guide holes are formed at equal intervals.

The guide plate 11 is integrally attached to the shaft 13 arranged in parallel at the end of the shuttle box 9 in an upright state via appropriate supporting members 14 at a plurality of locations. The shaft 1
It rotates and slides in conjunction with the sliding and rotation of 3.

The shaft 13 is rotatably and slidably disposed by bearing members 15 at a plurality of locations, and a chain sprocket 16 is attached to the end of the shaft.
The bearing part 1 is integrally attached and does not slide.
A free cam wheel 18 that rotates in one direction is attached via a cam wheel 7.

This cam ring 18 has stopper grooves 19 formed at every 90° on its circumferential surface, and a drive pawl 20 and a non-return pawl 21 whose tips engage with the stopper grooves are provided. , the drive pawl 20 is rotatably attached to a holder 22 attached to the shaft 13 while being biased in one direction (the direction in which the tip of the pawl engages with the groove), and is rotatably attached to the shuttle box 9 side while being biased in one direction, and both claws 20, 21
Accordingly, the cam ring 18 is configured as a kind of ratchet mechanism.

A cam action member 23 is disposed in contact with the cam action part side of the cam ring 18, and the stopper member 23 is fixed to the main body of the knitting device or the shuttle box 9, and does not slide or move. It looks like this.

A suitable chain 24 is suspended on the chain sprocket 16, one end of the chain 24 is fixed to the main body of the knitting device via a suitable coil spring 25, and the other end is attached to a guide sprocket 26. It is fixed to the arm 28 of the lower hook shaft 27 via.

Therefore, the shaft 13 is driven in synchronization with the drive of the lower hook 8 during knitting, and the cam wheel 18 attached to the shaft is also driven in synchronization with the drive of the lower hook. It is designed to be driven sequentially.

[0020] The threading method of the present invention using the knitting net device having the above configuration will be explained with reference to FIG. ,
This is a case in which a plurality of such net fabrics are knitted at the same time, usually adjacent to each other with the empty shuttle 6a as a boundary. Furthermore, among the six warp yarns forming one sheet of net fabric, two on both sides are edge yarns 2a.

[0021] Then, to explain in terms of one piece of fabric, the warp threads 2
A mesh is formed by meandering the weft threads 3 while alternately forming knots 4 with adjacent comrades, and the thread 10 passes through the mesh formed by the edge threads 2a.

FIG. 3 shows the rotation of the cam ring 18 for each node and the positional relationship with the cam action member 23, and the cam ring 18 has three action parts a, b, and c. ,
The cam action member 23 slides into contact with this action portion, thereby moving the shaft 13 in the left-right direction.

That is, by rotating the cam ring 18 by 90 degrees, one knot is formed, and the first cam action member 23
If the first stage knot is formed when is located at the action part a of the cam ring 18, the rotation angle of the cam ring 18 will start at 0, and the guide plate 11 will be In this case, it is located to the right (with respect to the active position b).

The state of the guide plate 11 is as shown in FIG. 4, and in the effective knitting range A forming one sheet of fabric, there are empty shuttles 6a without bobbins for the weft 3 on both sides thereof. The threading thread 10 on the left side is located inside the shuttle 6, and the threading thread 10 on the right side is located on the side of the empty shuttle 6a.

When knotted in this state, the left thread is located inside the knotted region, and the right thread is located outside the knotted region. That is, the thread 10 passes inside the edge thread 2a on the one hand, and on the outside of the edge thread 2a on the other hand.

In order to perform the next second knot, when the lower hook shaft 27 rotates and the lower hook 8 acts to pull out the warp threads, the arm 28 moves from the position of the imaginary line in FIG. 1 to the position of the solid line. By rotating, the chain 24 is pulled and the chain sprocket 16 is rotated, and the shaft 13 is accordingly rotated.
rotates, and the guide plate 11 and holder 22 fixed to the shaft come from the position shown by the imaginary line to the position shown by the solid line, that is, the position rotated by approximately 90° to stand up. At this position, the thread 10 is located above the shuttle 6 and can swing freely from side to side.

At the same time, the claws 20 of the holder 22
The cam ring 18 begins to rotate approximately 90 degrees, and as a result, the cam action member 23, which was in contact with the cam action part a, comes into contact with the cam action part c, and the shaft 13 moves to the left, and the guide plate 11 is also moved to the left, and the thread 10 is swung to the left.

This movement and the state in which the thread 10 is swung are as shown in FIG. As is clear from this figure, the thread on the left is located outside the area to be knotted.
The thread on the right is located inside the area to be knotted. That is, the thread 10 passes on the outside of the hem thread 2a on the one hand, and on the inside of the hem thread 2a on the other hand.

When the lower hook 8 pulls out the warp yarn and causes it to pass through the shuttle 6, the arm 28 of the lower hook shaft is reversed from the position shown by the solid line to the position shown by the imaginary line, thereby loosening the chain 24. , spring 2
5, and the chain sprocket 16 is pulled back by approximately 9.
The shaft 13, guide plate 11, and holder 22 are reversed by 0° and returned from the solid line position to the imaginary line position, and in this state, the second stage knot is made.

At this time, the cam ring 18 is inserted into the stopper groove 19.
Since the non-return claw 21 is engaged with the drive claw 21, the driving claw 20 is not reversed and leaves the stopper groove 19, and engages with the next stopper groove 19 at the position shown by the imaginary line. That is, since the cam ring 18 is advanced by 90 degrees by the driving pawl 20 every time it forms one knot, it rotates in the same direction and does not reverse.

Next, when performing the third and fourth stage knots, the lower hook shaft 27 is driven in the same manner as described above, and the shaft 1
When the cam wheel 18 is further rotated by 90 degrees through the cam ring 3, that is, rotated by 180 degrees and 270 degrees from the starting position, the cam action member 23, which was in contact with the cam action part c, comes into contact with the cam action part b. , the shaft 13 moves to the center, the guide plate 11 is also located at the center, the threads 10 are both located outside the shuttle 6, and the empty shuttle 6a is moved to the center.
It will be located on the side. This state is as shown in FIG. 6, and knotting is performed twice while maintaining this state.

[0032] When knotted in this state, all of the threads 10 are located outside the edge threads 2a and are not taken into the knot. Then repeat this, i.e. right, left,
By repeating the middle and middle steps, the thread 10 is efficiently and in a planned manner passed vertically through the mesh formed by the edge threads 2a.

[0033] As is clear from Figs. 4 to 6, the thread swing 5
The guide holes of the spool 5 and the guide holes 12 of the guide plate 11 are formed at corresponding intervals. They are located half a pitch apart. Then, there is no threading thread 10 at the position where the empty shuttle 6a is arranged, and threading thread 10 is present at the arrangement position of the warp threads 2 and the weft threads 3 located on both sides of the effective knitting network area A, These threads 10 are respectively inserted into the outer guide holes 12 that are shifted by a half pitch, and are arranged in a V-shape that opens outward as a whole. In addition, threading threads 10 are arranged in the same way for other fabrics to be knitted adjacently, and the guide plate 11 performs the same operation, so that multiple pieces of similar fabrics are simultaneously knitted in parallel. It can be done.

[0034]

Effects of the Invention As explained above, the threading method according to the present invention can be applied to a fabric that is knitted with warp and weft yarns and is knitted with edge yarns supplied from the warp side. This is a threading method in which threading thread is inserted into a mesh formed by edge threads on both sides at the same time as the knitting mesh, the threading thread being supplied from the weft side, and guided by a guide plate provided on the shuttle box side. and rotate the guide plate to the right, left,
By repeatedly moving in the order of middle and middle and knotting,
This provides an excellent effect in that the threads can be efficiently inserted in the vertical direction through the mesh formed by the edge threads.

Further, the guide plate is driven in accordance with the drive of the lower hook in the knitting device, and a plurality of pieces of the net fabric to be knitted are knitted adjacently across the empty shuttle,
Even in the plurality of mesh fabrics, the thread is guided by one guide plate, and the guide plates are unified and repeatedly moved in the order of right, left, center, and center, so that the knitted net has a complicated structure. Even with this device, an excellent effect is achieved in that a plurality of net fabrics can be efficiently knitted simultaneously and with the same plan without causing any trouble to other members.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view of the main parts of a specific device for carrying out the reading method of the present invention.

FIG. 2 is a schematic perspective view of the main parts of a specific device for carrying out the reading method of the present invention.

FIG. 3 is an explanatory diagram showing the relationship between the mesh fabric and a cam wheel that swings the threading thread from side to side to explain the threading method of the present invention.

FIG. 4 is a schematic plan view showing a situation in which the thread is swung to the right for explaining the threading method of the present invention.

FIG. 5 is a schematic plan view showing a situation in which the thread is swung to the left for explaining the threading method of the present invention.

FIG. 6 is a schematic plan view showing a situation where the threading thread is positioned in the center for explaining the threading method of the present invention. 1 Net fabric 2 Warp yarn 2a Edge yarn 3 Weft yarn 4 Knot 5 Swing 6 Shuttle 6a Empty shuttle 7 Upper hook 8 Lower hook 9 Shuttle box 10 Thread thread 10a Bobbin 11 Guide plate 12 Guide hole 13 Shaft 14 Support member 15 Bearing member 16 Chain Sprocket 17 Bearing portion 18 Cam ring 19 Stopper groove 20 Drive pawl 21 Check pawl 22 Holder 23 Cam action member 24 Chain 25 Coil spring 26 Guide sprocket 27 Lower hook shaft 28 Arm

Claims (3)

[Claims] Claim 1: A net fabric which is knitted by warp and weft yarns and is knitted by supplying edge yarns from the warp side, and the mesh formed by edge yarns on both sides of the fabric has a knitted net and a knitted net. This is a threading method in which the threading thread is inserted at the same time, the threading thread is supplied from the weft side, the threading thread is guided by a guide plate provided on the shuttle box side, and the guide plate is inserted between the right, left, middle, and middle sides. A method for threading a net fabric to be knitted, which is characterized by repeatedly moving the fabric in order and knotting it. 2. The method for threading a net fabric to be knitted according to claim 1, wherein the guide plate is driven in response to driving of a lower hook in a knitting device. 3. A plurality of mesh fabrics to be knitted are knitted next to each other with an empty shuttle between them, and a single guide plate is used to guide the thread through the plurality of fabrics, and the guide plate is 2. The method for reading through a net fabric to be knitted according to claim 1, wherein the movement is carried out repeatedly in the order of right, left, middle, and middle.