JPH01246452A - Method for knitting net fabric and device therefor - Google Patents

Abstract

PURPOSE:To variously change the size of stitches formed by an edging yarn, by knotting the edging yarn at an interval of half stitch on both sides of a body net fabric and taking out the edging yarn by a prescribed length in excess using taking out books in knotting at the interval of the half stitch. CONSTITUTION:An edging yarn 2 is caught and taken out in excess by taking out hooks 26 in forming knots on the edging yarns 2. The edge yarn 2 is loosened by the taken out length and a larger stitch than that of the body net fabric can be formed. The taking out length of the edging yarn 2 is changed by regulating an amplitude of vertical motion of a vertical moving plate 14. The edging yarn 2 is taken out by a prescribed length for half stitch forming the stitch and a larger edging yarn 2 than the stitch of the body net fabric can be taken out.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a method and a knitting device for knitting a net material such as a fishing net, in which edge threads knitted on both edges of the net material are appropriately pulled out over a predetermined length.

[Prior art]

Regarding this kind of hem thread drawer, please refer to Jikko 62-450.
The one disclosed in Publication No. 28 is well known. In this conventional example, as described in the specification and drawings of the publication, the stretched mesh threads of the ears are arranged at intervals of an arbitrary number of meshes, intersecting the direction in which the mesh is knitted. Specifically, as stated in the specification, [On the back side of the guide plate, there is a scoop rod that is inclined upward toward the comb. It is disposed so that it can come out and go through a through hole formed in the upper part. The tip of the scoop comb has a hook shape as shown in Figure 3, and when it is not in operation, the tip comes into contact with the comb.
3. During operation, this tip intermittently hooks the silk threads of the selvedges of the net that are being knitted, that is, the warp threads in the illustrated example, and pulls them in the moving direction of the scooping rod. Further, the shaft portion of the rake rod is inserted into a cylindrical portion of a guide fixed to the back surface of the guide plate, and the rear end portion of the rake rod is attached to a bracket. '' is a specific configuration, in which the warp threads of the ear portion are pulled out through the through holes of the guide plate, and the rake rod is inserted into a cylindrical portion fixed to the back surface of the guide plate for sliding movement.

[Problem to be solved by the invention]

The net fabric having the configuration of the conventional example has a major problem in that the number of knitted net fabrics cannot be freely changed. That is, the size of each go of the knitted net fabric differs depending on the purpose of use and the thickness of the threads, and the number of thread loops differs depending on the purpose of use and the size of each go. - In this type of net making machine, it is common knowledge that multiple net fabrics are knitted in an adjacent state within the shell, and eight
Naturally, the opposite edge threads will also be located adjacent to each other. Therefore, the width of the fabric to be knitted is changed depending on the number of threads and the number of stitches, and accordingly
Although the position of the opposite edge thread changes, the position of the rake rod cannot be changed because it slides through a cylindrical part fixed to the back of the guide plate. This is a fatal problem for this type of net making machine. Furthermore, in the conventional example, the rake rod protrudes and retracts through the through hole in the guide plate, and the tip of the rake rod is hooked, so unless the through hole is made considerably large, it will bend. There is a risk of the guide plate getting caught and therefore, in order to prevent bending, a cylindrical part fixed to the back of the guide plate is absolutely necessary, and if the through hole is made large, a stable through hole cannot be provided in the adjacent state. This poses a major problem in that the mounting position of the mozukui rod cannot be changed. (Means for Solving Issue 1) As a specific means for solving the problems of the conventional example, the present invention provides that the hem threads are knotted every other half on both sides of the body net; A method of knitting a net fabric characterized in that it is pulled out by a predetermined length using a drawer hook and knotted, and a vertically movable plate is arranged approximately parallel to a guide plate,
The present invention provides a knitting net device characterized in that a pull-out hook is provided on the vertically movable plate in a detachable manner. By pulling out the hem thread, a mesh of one large hem thread is continuously formed on both sides of the hem thread, and when the hem thread is pulled out, the hem thread is repositioned every half stitch forming the mesh. When changing the position, the thread is placed alternately between the position where the hook is hooked and the position where it is not hooked, so that by simply moving the hook up and down, the hem thread can be pulled out and released after tying automatically. It will definitely be done. In addition, in the above-mentioned knitting device, since the pull-out hook is detachably provided at a predetermined position on the vertically moving plate, it can be set as desired while the net fabric is being knitted, and moreover, it can be set as desired while the net fabric is being knitted. On the other hand, not only can the warp threads be pulled out efficiently, but the drawer hooks are arranged approximately corresponding to the positions where the edge threads of the net fabric to be knitted pass, and the hook points are directed toward the outside of the net fabric.

[Since it is arranged slightly toward the guide plate side, it is easy to pull out the edge thread and release it after knotting. Furthermore, since the stroke of the vertical motion of the vertically moving plate is variable, the draw-out length of the edge threads can be set arbitrarily, and the size of the mesh formed by the edge threads can be varied. 【Example】

Next, the present invention will be explained with reference to the illustrated embodiment. The net fabric shown in FIG. It is formed to be larger than 1 cup of the body net 1. In this case, the body net 1 is knitted with warp threads 3 and weft threads 4, and the edge threads 2
are fed from the same direction as the warp yarns 3, that is, in the same way as the warp yarns. The hem thread 2 formed in this manner may be required during tailoring, depending on the specifications of the net. Regarding the method and apparatus for knitting the above-mentioned net fabric,
The diagram will be explained. First, in Figure 2, 5 is the upper hook,
Reference numeral 6 denotes an upper hook, and a comb-tooth plate 7 is disposed below the upper hook 5 adjacent to the upper hook 5, and a guide plate 8 is disposed adjacent to the comb-teeth plate. This guide plate 8 has an oval shape in cross section,
It is disposed standing up from its base 8a. Reference numeral 9 denotes a thread swinger which can be moved up and down, left and right, and back and forth, and can hang or unhook the warp threads 3 from the upper hook 5, as well as move the position of the warp threads 3 relative to the comb teeth of the comb tooth plate 7. be. 10 is a shirttle, which supplies the weft yarn 4. Then, the knitted net fabric is transferred to the feed roll 11.
This is done sequentially for each nodule. A slider 12 is disposed on the base 8a of the guide plate 8, and a plurality of cam plates 1 are mounted on the slider.
3 are attached at appropriate intervals, and a vertically movable plate 14 is disposed in engagement with the cam plate. This vertical moving plate 14 moves up and down while in contact with the guide plate 8, and the cam plate 13
Vertical movement is given by. That is, the cam plate 13 is provided with a slit-shaped cam portion 15 formed diagonally, and a roll 16 that engages with the cam portion is attached to the vertically movable plate 14. The vertically movable plate 14 is provided with guide members 17 at both ends in the length direction to prevent it from moving in the left-right direction and to allow it to move in the vertical direction, and a vertical slit 18 is formed in the guide member. A roll 19 that engages with the slit is attached to the guide plate 8. Further, a plurality of holding plates 20 are provided so that the vertically movable plate 14 can move up and down reliably along the guide plate 8.The slider 12 has an arm 21 at at least one end.
One end of the arm is engaged, a substantially middle portion of the arm is rotatably supported by a shaft 22, a thin end of the arm is engaged with a cam 23, and the slider 12 is moved left and right by the drive of the cam 23. Since the cam plate 13 also moves laterally, the vertically moving plate 14 moves up and down. As shown in FIGS. 4 and 5, the vertical movement plate 14 has a position corresponding to each upper hook 5 or a valley between each comb tooth 7a, 7b, 7c of the ROM plate 7. A vertical hook hole 24 and a horizontal screw hole 25 are provided at substantially corresponding positions, and the vertical hook hole 24 is provided on the upper end surface of the vertical movement plate, and the horizontal screw hole 25 is provided on the side surface of the vertical movement plate. and the vertical hook hole 2
4. Provided in a state where it penetrates. A drawer hook 26 is attached to both holes 24 so as to be freely inserted, and a screw 27 is screwed into the screw hole 25 to fix the drawer hook 26. When attaching the drawer hook 26 in this case, the hook tip 26a
is attached so as to face the outside of the fabric to be knitted and slightly toward the direction of the guide plate 8, and in the illustrated embodiment, it is located between the fabrics to be knitted in an adjacent state. This figure shows the drawer hooks 26 attached so as to act on the hem threads of the mesh fabric on both sides, and one hook hole 24 is skipped and the drawer hooks 26 are attached so that the hook tips face each other. The pull-out hook 26 and the vertically movable plate 14 attached in this manner are located substantially parallel to the guide plate 8, and substantially parallel to the direction in which the net fabric is knitted. In addition, when installing the drawer hook 26,
For example, a reinforcing plate 28 may be used. 4 and 5 also show the positional relationship of the vertical movement of the thread swinger and the drawer hook 26. The reference numeral 29 in the figure is a lifting plate for the weft thread 4. Next, the rope netting process will be explained with reference to FIGS. 6 to 15. First, in FIGS. 6 and 7, when the upper and lower $7114 increases by 1, one drawer hook 26 releases the edge thread 2, and the other drawer hook 26 is positioned so that it catches the edge thread 2. That's what I do. The release of one side and the hooking of the other side are determined by changing the position of the edge thread 2 by the action of the thread swinger 9. That is, the edge threads 2 are supplied via the thread swinger 9 from the same direction as the warp threads 3 for knitting the Hakuno body net. In other words, taking the net fabric knitted on the right side of the figure as an example, the weft threads 4 forming the net are located in the valleys of the comb teeth 7a, 7b, and 7C. The position is not changed, whereas the warp threads 3 and the edge threads 2 are located between adjacent valleys, i.e. one warp thread 3 is located between the comb teeth 7a.
. Between the valleys of 7b and 7b, 7C, the edge thread 2 is comb-teeth 7b,
The valleys of 7C, 7c, and 7d are alternately aligned, whereby knots are formed between the weft threads 4 located in the valleys, and a mesh is formed. Therefore,
Comb teeth 7C without weft. It goes without saying that when the edge thread 2 is located in the valley with 7d, no knot is formed on the edge thread 2.
By being aligned with the intersection η, knots are formed in every other C1 edge thread 2. Similarly, knots are formed every other knot in the edge threads on the opposite side of the fabric, and the knots are formed at alternating positions every half stitch, as shown in FIG. The valley between the comb teeth 7c and 7d forms the boundary between the right and left side fabrics. Therefore, when a knot is formed on the edge thread 2, the drawer hook 26
Therefore, if the hem thread 2 is hooked and pulled out extra, the hem thread 2 will be loosened by the amount that has been pulled out, and the mesh can be formed larger than the mesh of the body net. In FIG. 6, the drawer hook 26 located on the left side has released the hem thread 2 from the hook tip, and the drawer hook 26 located on the right side has just released the hem thread 2 from the hook tip.
This is where you try to hook it and pull it out. In other words, after the edge yarn 2 of the left side net fabric is located between the valleys of the comb teeth 7d and 7e and has finished knotting with the weft yarn 4, the entire net fabric is moved along the guide plate 8 by the stitching roll 11. move,
For the next knot, the thread swinger 9 is in the process of positioning the edge thread 2 in the valley of the comb tooth 7C17d where there is no weft thread 4. In the net fabric knitted on the right side, the edge thread 2 is aligned from the valley of the i-tooth 7C17d where there is no weft thread to the valley of the comb tooth 7C17d where the weft thread 4 is located by thread picking. The yarn 2 is on its way to a position where a knot will be formed between it and the weft yarn 4 in the next step. Therefore, in the left side mesh fabric, the hem threads 2 are in a position where they do not form knots, so there is no need to pull out the hem threads 2, and the hem threads 2 are at a position where they do not hang on the hook tip of the drawer hook 26. In addition, for the net fabric knitted on the right side, the edge thread 2 is aligned with the valleys of IIIHa7b and 7C where the weft thread 4 is located, and the knot is formed, so it is necessary to pull out the edge thread 2. When this position is reached, the hem thread 2 has already been hooked onto the drawer hook 26 after being aligned with the thread picker 9, and as the thread swinger 9 rises to form a knot, the drawer hook 26 is pulled out. It descends and pulls out the edge thread 2 for a predetermined length (see Fig. 7). The drawn-out length of the edge thread 2 can be changed as appropriate by adjusting the amplitude of the vertical movement of the vertical movement plate 14. 6i By repeating the above steps, the hem thread 2 is pulled out a predetermined length for each half of the mesh, making it possible to draw out the hem thread 2 larger than the width of the net. Next, FIGS. 8 to 15 will be explained in more detail. 8th
The figure is a schematic side sectional view corresponding to FIG.
The knitted net of the net fabric knitted on the right side of the figure will be explained. The edge thread 2 is positioned by the thread swinger 9 from the valley of the comb teeth where there is no weft thread 4 to the valley of the comb teeth 7b and 7c where the weft thread 4 is present, and since the drawer hook 26 is raised, this By alignment, the edge thread 2 comes to a position where it is caught on the drawer hook 26. In this state, at the same time as the thread swinger 9 rises, the vertical moving plate 14 hooks the hem thread 2 and descends, thereby drawing out an extra predetermined length of the hem thread 2. Then, in order to form a knot, the raised thread swing 9 is further raised so that the edge thread 2 is hooked on the upper hook 5, the upper hook 5 is rotated to hang the edge thread 2, and the weft thread 4 is attached to the lifting board. 2
9, and rotate the upper hook 5 to hang it. The hem thread 2 and weft thread 4 hung on the upper hook 5 rotate the upper hook 5 in a predetermined direction in the same way as the knot of the body net, form a loop of the hem thread and the weft thread, and pass through the loop by the upper hook.
The hem yarn 2 is pulled out, the shirt handle 10 is submerged to entangle it with the weft yarn 4, the hem yarn 2 is pulled into the loop, the upper hook 5 is tilted to remove the loop, and the stitching roll 11 is used to pull down the net fabric. At the same time as tightening the loop, roll the tightening roll (
(not shown), the hem thread 2 is pulled back slightly to tighten the hem (FIGS. 11 and 12). And then the 13th
As shown in the figure, the stitching roll 11 pulls down the net fabric by half a month to prepare for the next knot.Following this half-moon pull, the vertical moving plate 14 rises and the drawer is pulled down. The hook 26 also rises and its hook tip 26a touches the guide plate 8.
Comes above. In this position, the hook tip 26a is slightly facing the guide plate 8 side, so the knotted hem thread 2 that is pulled toward the guide plate 8 side by the stitching is transferred to the hook tip 26a.
It will easily come off from 6a (Figures 14-15). In this way, by simply lifting the drawer hook 26 after one knot forming process, the knotted hem yarn 2 is removed from its hook tip 26.
Since it can be easily removed from a, it is possible to knot the knots one after another without any distortion in the knotting process, and even if the action of pulling out the edge threads 2 is added, the knotting process that is taking place inside the shell can be easily done. Net fabric can be knitted at the same speed.

【Effect of the invention】

As explained above, in the method of knitting the net fabric according to the present invention, the hem yarns are knotted every other half on both sides of the body net, and when knotted every other half, a predetermined extra length is pulled out with a drawer hook to make the knots. As a result, a mesh of hem threads with large eyelets can be continuously formed on both sides of the body mesh as efficiently as in the case of ordinary knitted melons, which is an excellent effect. In addition, the edge threads are repositioned every half stitch forming the mesh,
When changing the position, by alternating the position where the drawer hook is hooked and the position where it is not hooked, it is possible to form a continuous mesh of hem threads with large eyelets on both sides of the body net, and also to create an adjacent position. It also has the excellent effect of being able to efficiently knit a plurality of different net fabrics. Furthermore, the knitting device of the present invention has a structure in which a vertically moving plate is disposed substantially parallel to the guide plate, and a drawer hook is provided on the vertically moving plate to be detachably attached, so that the number of nets to be knitted can be reduced. This provides an excellent effect in that the attachment position of the drawer hook can be freely changed, and thereby the number of threads of the mesh fabric, which has meshes of hem threads with large eyelets continuously on both sides of the body mesh, can be set to a desired number. play. Furthermore, the drawer hook is disposed approximately corresponding to the position where the hem thread of the net fabric to be knitted passes, and the hook tip is directed toward the outside of the net fabric and slightly toward the guide plate side. Therefore, even after the hem yarn is knotted, the hem yarn can be easily separated from the pull-out hook by simply lifting the pull-out hook, and the knitting speed is not affected, which is an excellent effect. Further, by making the stroke of the vertical movement of the vertical movement plate variable, the length of the drawn-out edge threads can be changed, and the mesh of the mesh formed by the edge threads can also be changed, which is an excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a partial plan view of a net fabric knitted by the method and device of the present invention, FIG. 2 is a schematic side view showing the main parts of the knitting device of the present invention, and FIG. 3 is a main part of the device. Partial front view showing part, No. 4
5 is a front view similar to FIG. 4; FIG. 6 is a front view showing the knitting state of the net fabric in a positional relationship corresponding to FIG. 4; FIG. 7 is a front view showing the knitting state of the net fabric in the positional relationship corresponding to FIG. 5;
8 to 14 are schematic side views showing the sequential steps of forming one knot, and FIG. 15 is a schematic plan view showing the state in which the drawer hook is attached. 1... Body net 2... Edge thread 3.
...Warp thread 4...Weft thread 5...
...Upper hook 6.Old...Upper hook 7...Comb teeth plate 7a17b, 7c, 7e, 7d...1111 Teeth 8...Guide plate 9...・Thread swing 1
0...Shuttle 11.Old...Making roll 12...Slider 13...Cam plate 14...Yasu...Vertical movement plate 15...
Cam part 16...Roll 17...
・Guide member 18...Slit 19...
...Roll 20...Press plate 21.
...Arm 22 ...Axis 23
...Cam 24...Both holes 25
...Screw hole 26 ...Drawer hook 2
7... Screw 28... Reinforcement plate 2
9... Half upper root Fig. 11 Fig. 15

Claims (6)

[Claims] (1) A method of knitting a net fabric, which is characterized in that edge threads are knotted every other half on both sides of the body net, and when knotted every other half, a predetermined extra length is pulled out using a drawer hook and knotted. (2) Claim (1) characterized in that the hem thread is repositioned for every half stitch forming the mesh, and when the hem thread is repositioned, it is alternately located in a position where it is caught on the drawer hook and a position where it is not caught on the drawer hook.
) The method of knitting the net fabric described in ). (3) A knitting net device characterized in that a vertically movable plate is disposed substantially parallel to the guide plate, and a drawer hook is provided on the vertically movable plate in a detachable manner. (4) The drawer hook is disposed approximately corresponding to the position where the hem thread of the net fabric to be knitted passes, and the hook tip is directed toward the outside of the net fabric and slightly toward the guide plate side. The knitting net device according to item (3). (5) The knitting net device according to claim (3), wherein the vertical movement stroke of the vertical movement plate is variable. (6) Claim (3) wherein the drawer hook is disposed at a position corresponding to the valley of the comb teeth of the upper hook or the comb tooth plate and approximately parallel to the guide plate.
) The knitting net device described in ).