Method for forming knots in knotted knitted nets, and manufacturing method and manufacturing device thereof

Abstract

To provide a knot forming method, a knotted net manufacturing method, and a knotted net manufacturing device, which enable a net having various mesh shapes such as regular hexagonal mesh to be formed using knot formation technique that is not available in conventional knotted net formation devices.SOLUTION: A predetermined knotted loop is formed by winding a plurality of net yarns 12 pulled out of respective bobbins 3 and running in parallel around a predetermined knotting guide pin in a predetermined loop shape on a mesh frame 1 prepared according to the shape and size of meshes to be formed. Then, the bobbin 3 is passed through the knotted loop and subsequently the net yarn 12 is rewound on the bobbin 3 so that the knotted loop converges around the knotting guide pin and forms temporary knotted meshes. Subsequently, the temporary knotted meshes is removed from the mesh frame 1 and squeezed to completely form knot so as to form knotted meshes.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a knot forming method that enables a variety of mesh shapes to be formed in a knotted net, a manufacturing method thereof, and a net knitting device. [Background technology]

[0002] Conventional knotted net knitting machines are dominated by those that knit nets using frog or regular knots. In particular, frog knotted net knitting machines are widely used for knitting general knotted nets due to the advantage that they are less likely to cause mesh misalignment at the knot points compared to regular knots. Both knitting machines employ a knotting method in which a bobbin shuttle 13 containing a weft 15a passes through a knotting loop made of warp 14a, as shown in Figure 2(A). The knotting techniques available with these knitting machines are limited to frog or regular knots, as shown in Figure 2(B), or variations thereof. Furthermore, conventional knotted net knitting machines adjust the knot spacing by feeding a fixed length of mesh in a feed mechanism including a thread swing frame 17 according to the mesh size. Examples of recent knotted net knitting machines and knitting methods using them are listed in Patent Document 1. These net weaving devices have been developed to suit the limited use of manufacturing knotted fishing nets, and in most cases the mesh shapes that can be woven are specialized to diamonds with a fixed mesh size, including squares. For this reason, it is difficult to accommodate mesh shapes suited to new uses, such as regular hexagonal mesh nets intended to prevent wild birds from getting caught in them (Patent Document 3).

[0003] On the other hand, conventionally, to manufacture hexagonal mesh nets using metal wires, the wires are pulled out in a certain direction from a bobbin, and then hooked onto pins on a knitting roller to twist the two wires together to form a mesh, and in recent years, a hexagonal mesh net manufacturing device using hard plastic wires (Patent Document 2) has also been used. However, due to the nature of the material, it is not possible to knit a net with loop-shaped nodes.

[0004] In traditional handicrafts such as macramé, there are knitting techniques that combine various knotting techniques and mesh size adjustments, and a wide variety of meshes and knitted fabrics are used to create interior and personal items. However, most of these are limited to small items made by hand, and there is almost no industrial production of land-based nets using knitting machines. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 2-084518 [Patent Document 2] Patent No. 4926126 [Patent Document 3] Utility Model Registration No. 322158 Summary of the Invention [Problem to be solved by the invention]

[0006] In the conventional knotted net knitting device shown in Figure 2, as shown in Figure 2(A), Warp thread 14a Because this method uses a knotting technique in which the weft thread 15a passes through the knot loop 14b, the knitting yarns coming out of the knotted part of the mesh are unbalanced on the left and right, as shown in Figure 2(B), causing bias direction deviation in the mesh. Furthermore, there is the problem of misalignment due to the knots sliding on the weft threads. In addition, the mesh that can be knitted is limited to diamonds containing squares with a fixed mesh size. The inventors have devised a regular hexagonal mesh knotted net shown in Figure 9 as a knotted net for a new purpose (Patent Document 3). However, this regular hexagonal mesh knotted net requires a combination of multiple closed knotting techniques different from the fork weave to form accurate regular hexagonal meshes without any gaps, and conventional knotted net knitting devices cannot knit the desired regular hexagonal mesh knotted net.

[0007] Using traditional handicraft knotting techniques such as macramé, it is possible to knit nets with a variety of knots and mesh patterns, including the regular hexagonal pattern shown in Figure 9, but there is no knitting equipment for industrially producing nets using these knotting techniques. An object of the present invention is to provide a knotted mesh knitting device that uses a knotting technique that cannot be handled by conventional knotted mesh knitting devices, making it possible to knit meshes with a variety of mesh shapes, including regular hexagonal meshes. [Means for solving the problem]

[0008] In order to solve the above problems, the knot forming method of the present invention involves winding a plurality of parallel-running net threads, each drawn out from a plurality of bobbins, around a knot guide pin in a predetermined loop shape to form a predetermined knot loop, passing the bobbin through the knot loop and then winding the net thread back onto the bobbin to cause the knot loop to converge around the knot guide pin to form a temporary knot, removing the temporary knot from the guide pin, and then pulling and tightening the temporary knot to form a knot.

[0009] In addition, in the method for manufacturing a knotted net of the present invention, a plurality of bobbins around which net threads are wound are installed, and a mesh form plate is formed of a plurality of mesh form plates on which predetermined knot guide pins are arranged for each knitting stage in accordance with the shape and size of the net, and the mesh form plate of the knot stage is arranged at a knot loop formation position; and a method for winding the plurality of net threads drawn out from each of the bobbins and running parallel to each other in a predetermined loop shape around predetermined knot guide pins on the mesh form plate prepared in accordance with the shape and size of the net to form the net. The method includes a knotted loop forming step of forming predetermined knotted loops, and a temporary knotted mesh forming step of passing the knotted loops through the bobbin and then rewinding the netting thread onto the bobbin, thereby causing the knotted loops to converge around the knot guide pins and forming a temporarily knotted mesh. The knot preparation step, knotted loop forming step, and temporary knotted mesh forming step are repeated, and a mesh completing step is repeated in which the temporarily knotted mesh is removed from the mesh form, the temporary knots are tightened, and the knots are completed to form a knotted mesh.

[0010] In addition, the apparatus for manufacturing knotted nets of the present invention includes a bobbin mechanism arranged on a bobbin rack so as to pull out bobbins wound with netting yarn in the knitting direction in accordance with the number of meshes to be knitted; a mesh form consisting of a plurality of mesh form plates on which predetermined knotting guide pins are arranged for each knitting stage in accordance with the shape and dimensions of the mesh to be formed, and a knotting loop forming mechanism that uses the plurality of mesh form plates pulled out from each of the bobbins and running parallel to each other, and positions the mesh form plate of the knotting stage at a knotting loop forming position and winds the mesh around the knotting guide pins in a predetermined loop shape to form a predetermined knotted loop; a bobbin operating mechanism that passes the bobbin through the knotting loop and then rewinds the netting yarn onto the bobbin, thereby converging the knotted loop around the knotting guide pin to form a provisionally knotted mesh; and a mesh completion mechanism that removes the provisionally knotted mesh from the mesh form plate located at a mesh removal position on the mesh form, and tightens the knotted parts to complete the knots to form a knotted mesh. It is preferable that the knotted loop forming mechanism has a knotting arm and a knotting guide hook, and is configured to form the knotted loop by looping the netting thread around the knotting guide pin and the knotting guide hook while the knotting arm holds the netting thread. [Effects of the Invention]

[0011] By using a net-making device that employs the knot-forming method and manufacturing method for knotted nets according to the present invention, it is possible to industrially produce knotted nets with knotting techniques and mesh shapes, such as regular hexagonal mesh, that could not be produced using conventional knotted net-making devices, and also knotted nets with a variety of precise mesh shapes and mesh sizes that can be produced by combining these. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a side view of a net knitting device showing one embodiment of the present invention. [Figure 2] 1A and 1B are diagrams showing a knotting device portion and a knotting portion of a conventional knotted net knitting device. [Figure 3]1A and 1B are diagrams showing a mesh form part of one embodiment of a net knitting device of the present invention, and a state in which the mesh form part is unfolded. [Figure 4] FIG. 1 is a diagram showing the arrangement of a mesh formwork, knot guide pins, bobbins, bobbin gauges, and knot guide hooks in one embodiment of the net knitting device of the present invention. [Figure 5] 1 is a diagram showing the arrangement of a mesh formwork, knot guide pins, bobbins, bobbin gauges, and knot guide hooks, as well as the operating positions of knot arms, in one embodiment of the net knitting device of the present invention. FIG. [Figure 6] 10 is a diagram showing the operation of the knot guide hook after a knot loop is made with the netting yarn in one embodiment of the netting device of the present invention. FIG. [Figure 7] 1A is a diagram showing the state of the bobbin and knotted loop before the bobbin is passed through the knotted loop made of netting yarn in one embodiment of the net knitting device of the present invention; FIG. 1B is a side view showing the state in which the bobbin arm grabs the bobbin on the bobbin rack and pulls it up to pass it through the knotted loop; and FIG. 1C is a side view showing the state in which the bobbin has passed through the knotted loop and the knotted loop has been released. [Figure 8] 1A is a diagram showing the operation of winding back the net thread onto a bobbin using a net thread winding device to form a knot around a knot guide pin, and FIG. 1B is an enlarged view of the knot portion, in one embodiment of the net knitting device of the present invention. [Figure 9] 1A shows the shape of the mesh and nodes A when a regular hexagonal mesh is woven in one embodiment of the net knitting device of the present invention, and FIG. 1B shows the shape of the nodes B, and FIG. 1C shows the shape of the nodes B. FIG. [Figure 10] In one embodiment of the net knitting device of the present invention, among the basic shapes of the knotted loops created by the knotting arm, Figure (A) shows an open knot in which the knotted loop formed from the net thread pulled out from the bobbin is not passed through the bobbin, and Figure (B) shows a closed knot in which the knotted loop formed from the net thread pulled out from the bobbin is passed through the bobbin. [Figure 11] 1 is a side view of a mesh adjusting device and a net winding device in one embodiment of a net knitting device of the present invention. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0013] The basic structure of an embodiment of a knotted net knitting device according to the present invention is shown in FIG. In the bobbin mechanism of a knotted net knitting device, which is one embodiment of the present invention, bobbins 3 prepared according to the number of meshes to be knitted are arranged at equal intervals on a bobbin rack 6 so that the net thread 12 is pulled out in the knitting direction, and a bobbin gauge 5 with grooves for passing the net thread 12 is installed in accordance with the arrangement of the bobbins 3. The knotted loop forming mechanism of the knotted net knitting device, which is one embodiment of the present invention, is composed of a mesh form 1 combined with a mesh form plate 18 on which knot guide pins 19 are arranged according to the mesh shape to be formed, knot guide hooks 4 arranged according to the scale width of the bobbin gauge 5, and a knotting arm 2 that scoops up the net thread 12 pulled out from the bobbin 3 and forms a knotted loop according to the desired knotting technique between the knot guide pins 19 and the knot guide hooks 4 on the mesh form plate 18 arranged at the knotted loop forming position. The bobbin operating mechanism of the knotted net knitting device, which is one embodiment of the present invention, is composed of a bobbin arm 8 that picks up the bobbin 3 on the bobbin rack 6 and passes it through the knotted loop, and a net thread winding device 7 that rewinds the excess knitting yarn 12 used in the knotted loop onto the bobbin 3 and converges it around the knot guide pin 19 to form a temporary knot. The mesh completion mechanism of the knotted net knitting device, which is one embodiment of the present invention, is composed of a mesh adjustment device 9 that removes the provisionally knotted mesh from the mesh form plate 18 that has been moved to the mesh removal position on the mesh form 1, tightens the knotted area to complete the knot and adjust the mesh, and a mesh winding device 10 that incorporates the adjusted mesh into the mesh 29 and winds it up.

[0014] The arrangement of each device constituting the bobbin mechanism will be described. The bobbins 3 on the bobbin rack 6 are installed at equal intervals at a position lower than the knotting guide hooks 4 and the bobbin gauge 5 so that they match the scales on the bobbin gauge 5, and when the knotting guide hooks 4 are moved to the rear of the bobbin rack 6 to open the knotted loop, the yarn 12 on the knotting guide hook 4 side of the knotted loop passes over the bobbin 3 (Figure 6). The bobbins 3 pull out the yarn 12 in a fixed direction so that the winding direction of each yarn 12 matches the rotation direction of the yarn winding device 7. The bobbin gauge 5 has a smoothly curved top to prevent the yarn 12 from getting caught when passing through.

[0015] The mesh formwork 1, which is one of the devices that constitute the knotted loop forming mechanism, will be described. As shown in Figure 3, a mesh form plate 18 is installed on the mesh form 1b, with the spacing 20a of the horizontal arrangement grid 20 for the knot guide pins 19 adjusted to the gauge width 5a of the bobbin gauge 5, and the vertical width adjusted to match the shape of the mesh. Mesh form plates 18 can be combined to form a polygonal pillar, or they can be equipped with a function to dynamically adjust the arrangement of the knot guide pins 19, depending on the shape of the mesh to be knitted. The mesh thread 12 drawn from each bobbin 3 through the thread opening of the bobbin holder 11 passes through the bobbin thread gate on the bobbin gauge 5 and is guided to a predetermined position on the mesh form 1 (Figure 4). The knot loop formation operation is carried out around the knot guide pins 19 on the mesh form plate 18, which is placed on the top surface of the mesh form 1.

[0016] For example, when knitting the regular hexagonal mesh shown in Figure 9, four mesh form plates 18 are required for one mesh, and the mesh form 1 is prepared with a number of mesh form plates 18 that is a multiple of four (Figure 3). The vertical width of the mesh form plate 18a for the vertical lines of the regular hexagon corresponds to the length of one side of the regular hexagon, and the vertical width of the mesh form plate 18b for the diagonal lines is calculated from the length of one side of the regular hexagon and the scale on the bobbin gauge 5. When the bobbin 3 is passed through the knot loop created on the mesh form 1 and the mesh yarn 12 is rewound onto the bobbin 3 to converge the knot loop, a temporary knot is formed with the mesh yarn 12 wrapped around the knot guide pin 19. The vertical width of the mesh form plate 18 is calculated taking into account the margin of the temporary knot portion. In addition, selvage knot guide pins 19b can be placed at the edge of the mesh form plate 18 to process the selvage yarn portions of the mesh.

[0017] The mesh form 1 can be used by combining mesh form plates 18 corresponding to different meshes, for example, a combination of diamond and regular hexagonal patterns. Furthermore, auxiliary guide pins can be placed in addition to the knot guide pins 19 at the knot points to allow for cloisonne knots and other weaving. Furthermore, knot guide pins 19b for selvedge threads can be placed at the ends of the mesh form plates 18.

[0018] A net knitting process using a knotted net knitting device according to one embodiment of the present invention will be described. In the knot preparation process, a bobbin 3, a bobbin gauge 5, a knot guide hook 4, and a mesh formwork are provided. Nodal loop formation position The basic arrangement of the mesh form plate 18 and the knot guide pin 19 in the bobbin 3 is shown in Figure 4. The mesh thread 12 drawn out from the bobbin 3 passes through the bobbin thread opening on the bobbin gauge 5 while maintaining a moderate tension. Nodal loop formation position The knot loop passes beside the knot guide pin 19 of the mesh form plate 18 at the end and connects to the temporary knot of the knot guide pin 19 on the mesh form plate 18 used in forming the knot loop in the previous stage. In the knot preparation step, the above arrangement is set for one mesh stage to be knitted.

[0019] 5 and 6 show an example of the knotted loop forming operation in the knotted loop forming step. The knotting arm 2 picks up the netting thread 12 to be knotted between the knotting guide pin 19 on the netting form plate 18, which is located at the knotting loop formation position of the netting form 1, and the knotting guide hook 4, which is located on the bobbin gauge 5 (Fig. 5), and while pulling out the netting thread 12 from the bobbin 3, loops it around the knotting guide pin 19 and the knotting guide hook 4 in accordance with the desired knotting technique to form a knotted loop (Fig. 6). This knotting loop formation operation is carried out for one netting stage. The knotting arm 2 allows the yarn to pass through the knotting guide hooks 4 in a number equal to the number of bobbins through which the knotting loop is passed plus one (Figure 6). For example, when making a knotting loop that passes through two adjacent bobbins 3, the net yarn 23 is hooked on the three knotting guide hooks 4 on both sides and between the two bobbins. When passing through only one bobbin, the net yarn 22 is hooked on the knotting guide hooks 4 on both sides of the relevant bobbin. Once the knotted loop has been formed between the knotted guide pin 19 and the knotted guide hook 4, the knotted loop is enlarged by moving the knotted guide hook 4 backwards so that the bobbin 3 can pass through the knotted loop (Figure 7(A)).

[0020] FIG. 10 illustrates the basic shape of the knotted loop to be formed. Figure 10(A) shows the shape of a knotted loop formed by a net thread 12 pulled out from a bobbin 3, forming an open knot where the bobbin does not pass through the knotted loop. For example, a bobbin 3b is passed through a knotted loop 25a formed by a net thread 22a, or a bobbin 3a is passed through a knotted loop 25b formed by a net thread 23a. The frog-shaped knot shown in Figure 2(B) is an open knot formed by passing a weft thread 15b through a knotted loop formed by a warp thread 14b. 10(B) shows the shape of a knotted loop that forms a closed knot by passing the bobbin through a knotted loop formed by the net thread 12 pulled out from the bobbin 3. For example, if the bobbin 3a is passed through the knotted loop 25c formed by the net thread 22a, or if the bobbin 3b is passed through the knotted loop 25d formed by the net thread 23a, a closed "tight knot" knot is formed. By combining these basic shapes of knotted loops and adjusting the number and arrangement of bobbins to be threaded, various knotting techniques can be implemented. For example, to form the knot shown in Fig. 9(B), which corresponds to the regular hexagonal knot point 24a in Fig. 9(A), the bobbin 3b is passed through the knot loop 25d, the net yarn 22a is picked up, and the knot loop 25c is formed from the knot loop start position 26c, and the bobbin 3a is passed through. To form the knot shown in Fig. 9(C), which corresponds to the regular hexagonal knot point 24b in Fig. 9(A), the bobbins 3a and 3b are passed through the knot loop 25d, and the net yarn 22a is picked up, and the knot loop 25c is formed from the knot loop start position 26a, and the bobbin 3a is passed through.

[0021] The knotting arm 2 grasps the positions of the knotting guide pin 19 and knotting guide hook 4 based on the bobbin gauge 5, and forms a knotted loop in accordance with the desired knotting technique. The knotting loop forming operation is determined by combining the basic shape of the knotted loop shown in Figure 10 with factors such as the location where the netting yarn 12 is picked up, the position and number of bobbins to be passed through, and the number of loops. The knotting loop forming operation of the knotting arm 2 can be digitized and controlled by a computer. The knotting arms 2 may be provided in the number equal to the number of knots to be knotted in one stage, or one knotting arm may be used to form knotted loops for one stage. The knotting loop forming operation of the knotting arm 2 does not need to be common to one mesh layer, and for example, when processing selvage yarns or knitting a mesh fabric with a combination of multiple mesh shapes, multiple knotting loop forming operations can be incorporated according to the mesh and knotting technique.

[0022] FIG. 7 shows an example of the operation of the bobbin 3 in the temporary knot network forming step. The knotted loop formed in the knotted loop forming process is expanded by pulling the knotted guide hook 4 backward, so that the bobbin 3 can pass through it as shown in Figure 7(A). In this state, the bobbin arm 8 is inserted into the bobbin rack 6, and each bobbin 3 is picked up and passed through the knotted loop (Figure 7(B)). The bobbin 3 may be provided with an accessory or storage case to facilitate smooth thread unwinding and rewinding. A bobbin holder 11 may also be attached to hold the bobbin 3 when the bobbin arm 8 passes through the knotted loop. At the tip of the bobbin arm 8, bobbin hooks 8a and the like for hooking the individual bobbins 3 are arranged. The bobbin arm 8 is lowered to grab the individual bobbins 3 on the bobbin rack 6, and then raised to pick up the bobbin 3, so that the individual bobbins 3 can be passed through the knotted loop.

[0023] Once the bobbin 3 has passed through the knotted loop, the mesh thread of the knotted loop that was hooked on the knotted guide hook 4 is released. As the knotted loop is released, the bobbin gauge 5 is lowered downward so as not to interfere with the tightening of the knotted loop (Figure 7(C)). The excess net thread 12 of the released knot loop is rewound onto the bobbin 3 by the net thread winding device 7 and converges around the knot guide pin 19 (Fig. 8(A)), forming a temporary knot around the knot guide pin 19 (Fig. 8(B)).

[0024] The net thread winding device 7 may be installed for each bobbin 3, or one device may control the rewinding operation of all the bobbins 3. The net thread winding device 7 may be installed at a position where the bobbin arm 8 has lifted the bobbin 3, or may be installed below the bobbin rack 6 so that the net thread is wound when the bobbin 3 comes into contact with the net thread winding device 7. By adjusting the net thread winding device 7, Nodal loop formation position The mesh threads (22, 23) to be knotted on the mesh form plate 18 are formed with a temporary knot (Fig. 8(B)) around the knot point 24 of the mesh knot guide pin 19 in a state where they are not loose and maintain an appropriate tension.

[0025] After the temporary knot mesh forming step of forming one stage of temporary knot mesh is completed, knot preparation is carried out for the next stage of mesh. The mesh form plate 18 for forming the next temporary knot mesh on the mesh form 1 is moved to the knot loop formation position. The bobbin gauge 5 is returned to its predetermined position, and the knot guide hook 4 is repositioned on the bobbin gauge 5. Furthermore, the bobbin arm 8 is operated to return each bobbin 3 to its predetermined position on the bobbin rack 6. As described above, a provisional knot knitting net is produced for each mesh layer, which comprises the knot preparation step, the knot loop forming step, and the provisional knot mesh forming step, and this process is repeated.

[0026] FIG. 11 shows an example of the mesh completion process. The mesh adjustment device 9 is positioned so that the movement of the mesh formwork 1 allows the temporarily knotted portions of the mesh to easily come off the knot guide pins 19. When the temporarily knotted mesh reaches the removal position, one layer of mesh is removed from the mesh formwork with the assistance of the mesh removal hooks 9a. The temporarily knotted mesh that has reached the mesh removal position must be removed while maintaining the formed temporary knot mesh shape, and it is desirable for the mesh removal hooks 9a to be structured so that the temporarily knotted portions can be smoothly removed from the knot guide pins 19 without applying force to the temporarily knotted mesh 28a or requiring any special operation. The pre-adjustment temporary knot mesh 28a has a pre-tightened temporary knot 27a. For the temporary knot mesh to be adjusted, for example, the knot stopper 9b is inserted into the knot position on the mesh removal hook 9a side, the other knot is hooked onto the knot tightening hook 9c, and the knot tightening hook 9c is pulled to stretch the net thread 12 and tightly tighten the knot 27b. The direction, distance, and strength of stretching the net thread 12 are adjusted depending on the material of the net thread 12 and the shape of the net to be formed. For example, by adjusting the distance between the knot stopper 9b and the knot tightening hook 9c, a net with sides of accurate length can be formed. The mesh 28b that has passed through the mesh adjusting device 9 and is completed is incorporated into a net 29 and taken up by a net winding device 10.

[0027] The mesh completion process can be carried out in parallel with the series of processes for knitting the temporary knotted net, and can be processed one mesh layer at a time or multiple mesh layers can be processed simultaneously. When knitting a net that combines multiple mesh shapes and knotting techniques, or when it is desired to adjust the mesh shape of the entire net, this can be achieved by providing the mesh adjustment device 9 with a mesh adjustment function for multiple patterns.

[0028] As described above, according to the embodiments of the present invention, it is possible to industrially produce knotted nets of various and accurate sizes and mesh shapes using knotting techniques and mesh shapes, such as regular hexagons, that could not be produced using conventional knotted netting devices, and combinations thereof. In particular, by combining a knotted loop formed by the netting thread 12 pulled out from a bobbin 3 as shown in Figure 10(B) with a closed knot formed by passing the bobbin 3 through the knotted loop, it is possible to knit a knotted net that is less susceptible to mesh misalignment, which has been pointed out as a drawback of conventional knotted nets.In addition, by using the mesh form 1, it is possible to form meshes of accurate size and shape.

[0029] Furthermore, according to an embodiment of the present invention, by tightening the temporary knots to form knots in the mesh completion process, the locations where strong forces are applied to the net yarn 12 are limited to the mesh adjustment device 9. Conventional knotted net knitting devices have become larger and faster, and there are cases where a large load is placed on the net yarn 12 or the knitting device in the mesh feed mechanism or mesh tightening mechanism, but by separating the temporary knot knitting process from the mesh completion process, it is believed that the load placed on the net yarn 12 and the knitting device during knitting can be significantly reduced compared to conventional knotted net knitting devices.

[0030] Although an embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the mesh adjustment device 9 may be configured with a pair of rollers arranged above and below. In this case, the pair of rollers may sandwich the temporary knot mesh that has come off the knot guide pin 19 and send it to the net fabric take-up device, while utilizing the take-up tension of the net fabric take-up device to tighten the temporary knot and complete the knot. [Explanation of symbols]

[0031] 1...Mesh formwork 2...Nodal arm 3...Bobbin 3a...Bobbin a 3b...Bobbin b 4...Knot guide hook 5...Bobbin gauge 5a…Bobbin gauge width 6...Bobbin rack 7...Net thread winding device 8...Bobbin arm 8a…Bobbin hook 9...Mesh adjustment device 9a…Mesh removal hook 9b...Knot stop 9c...Knotted drawstring hook 10...Net winding device 11...Bobbin holder 12...Netting thread 13... Weft bobbin shuttle of conventional frog knitting net device 14a...warp thread of conventional frog knitting net device 14b...Knotting loop made from the weft of a conventional frog netting device 15a, 15b... Weft threads of a conventional frog weaving net device 16...warp hook of conventional frog knitting net device 17...Line swinging frame of conventional frog netting device 18...Mesh formwork plate 19, 19a, 19b...Tubercle guide pin 20...Lateral placement grid for tuberosity guide pins 20a...Lateral placement grid spacing of tubercle guide pins 21...Hook part of the nodule arm 22, 22a, 22b...a netting thread 23, 23a, 23b...b netting thread 24...Knot point of knot guide pin 24a...Regular hexagonal knot point a 24b...Regular hexagonal knot b 25a...Nodal Loop a 25b...Nodal loop b 25c...Nodal Loop c 25d...Nodal Loop d 26a...Nodal loop start position a 26b...Nodal loop start position b 26c…Nodal loop start position c 26d…Nodal loop start position d 27a...Nodule before tightening 27b...Nodule during contraction 27c...Nodules after tightening 28a…Mesh before adjustment 28b…Adjusted mesh 29...Reeled netting

Claims

1. A knotting loop forming process in which a plurality of mesh threads are pulled out in the knitting direction from each of bobbins wound with mesh threads according to the number of meshes to be knitted, and run parallel to each other, using a mesh form consisting of a plurality of mesh form plates on which knotting guide pins are arranged at predetermined intervals for each knitting stage according to the shape and dimensions of the mesh to be formed, and the mesh threads are wound around each of the knotting guide pins on the mesh form plates located at the knotting loop forming positions of the mesh form using a predetermined knotting loop forming operation according to a predetermined knotting technique to form predetermined knotted loops; a temporary knot mesh forming step in which the knot loop is passed through a predetermined bobbin including a bobbin wound with a different net thread from the net thread forming the knot loop, and then the net thread is rewound onto the bobbin, so that the knot loop converges around the knot guide pin to form a temporary knot; a mesh completing step of removing the temporary knots from the knot guide pins on the mesh form plate at the mesh removal position of the mesh form, adjusting the mesh, tightening the temporary knots to complete the knots, and incorporating the completed mesh into a mesh fabric and winding it up; A method for forming reticulum nodules, comprising:

2. A method for producing a knotted net, comprising: a knotting preparation step in which bobbins wound with mesh yarns according to the number of meshes to be knitted are placed on a bobbin rack, and a mesh form plate of the knitting stage where the knotted loop formation operation is performed is placed at a predetermined knotted loop formation position using a mesh form plate consisting of a plurality of mesh form plates on which knotting guide pins are arranged at predetermined intervals for each knitting stage according to the shape and size of the mesh to be formed, and the preceding mesh form plate is moved to a mesh removal position; a knotting loop forming step in which a plurality of mesh yarns, which are pulled out in the knitting direction from each of the bobbins and run parallel to each other, are wound around each of the knotting guide pins on the mesh form plate arranged at the knotting loop forming position in the knotting preparation step, in a predetermined knotting loop forming operation in accordance with a predetermined knotting technique to form predetermined knotted loops; a temporary knot forming step in which the knotted loop is passed through a predetermined bobbin, including a bobbin wound with a net thread different from the net thread forming the knotted loop, and then the net thread is rewound onto the bobbin, so that the combination of the knotted loops converges around the knot guide pin to form a temporary knot; and The method is characterized in that a provisional knot network is formed by repeatedly performing the knot preparation step, the knot loop formation step, and the provisional knot formation step, In parallel with this, a mesh completing step is performed in which the temporary knots are removed from the knot guide pins on the mesh form plate at the mesh removal position of the mesh form, the mesh is adjusted, the temporary knots are tightened to complete the knots, and the completed mesh is incorporated into the mesh fabric and wound up. A method for producing a nodular meshwork, comprising:

3. An apparatus for producing knotted netting, comprising: A bobbin mechanism in which the bobbins, each having a net thread wound thereon in accordance with the number of meshes to be knitted, are arranged so that the net thread is pulled out in the knitting direction and runs parallel to the bobbin; a knotting loop forming mechanism that uses a mesh form consisting of a plurality of mesh form plates positioned in the direction in which the mesh yarn is pulled out of the bobbin mechanism, and on which knotting guide pins are arranged at predetermined intervals for each knitting stage in accordance with the shape and size of the mesh to be formed, and that winds the plurality of mesh yarns pulled out from the bobbin around each of the knotting guide pins on the mesh form plates that are arranged at predetermined knotting loop forming positions of the mesh form in a predetermined knotting loop forming operation in accordance with a predetermined knotting technique to form predetermined knotted loops; a bobbin operating mechanism disposed between the bobbin mechanism and the knotted loop forming mechanism, which passes the knotted loop formed by the knotted loop forming mechanism through a predetermined bobbin, including a bobbin wound with a net thread different from the net thread forming the knotted loop, and then winds the net thread back onto the bobbin, thereby converging the knotted loop around the knot guide pin to form a temporary knot; a mesh completion mechanism comprising: a mesh adjustment device located behind the knot loop forming mechanism, which removes the temporary knot from the knot guide pin on the mesh form plate at the mesh removal position of the mesh form, adjusts the mesh, and tightens the temporary knot to complete the knot; and a knitted fabric winding device which incorporates the completed mesh into the mesh fabric and winds up the mesh fabric; An apparatus for manufacturing knotted netting, comprising:

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