JP2023073558A - Plastic tortoiseshell net manufacturing device using ai technology - Google Patents

Abstract

To manufacture a plastic tortoiseshell net with high quality without depending on a skilled engineer by using an AI technology to automatically correct abnormally twisted portions that occur when right and left plastic wires have different tension.SOLUTION: A plastic tortoiseshell net manufacturing device has a net twisting mechanism 2 that twists and weaves a plastic wire a into a tortoiseshell net b, a net twisting prevention mechanism 3 disposed behind the net twisting mechanism, and an untwisting mechanism 4 having a guide gear 41, a front delivering bobbin 42 and a rear delivering bobbin 43 for delivering the wire a, and a guide device 44 installed between the front and rear delivering bobbins. The plastic tortoiseshell net manufacturing device comprises: a heating device 5 that is disposed between the net twisting mechanism 2 on front side and the net twisting prevention mechanism 3 on rear side and evenly heats the wire a inside through a heat conduction insertion pipe 51; a molding holding board 6 that is installed in front of the net twisting mechanism 2 and holds a shape of the tortoiseshell net b; and an AI device 8 that automatically corrects a state of an abnormally twisted portion f2 of each twisted portion f of the wire a delivered from the net twisting mechanism 2 so as to be a normal twisted portion f1.SELECTED DRAWING: Figure 1

Description

The present invention relates to an apparatus for manufacturing a tortoiseshell mesh by alternately twisting two plastic wires, and in particular, to eliminate an abnormally twisted portion that occurs when the tension of two left and right plastic wires is uneven. The present invention relates to a manufacturing apparatus for plastic tortoise nets using AI technology that automatically corrects using AI (artificial intelligence) technology and manufactures high-quality plastic tortoise nets.

BACKGROUND ART A tortoiseshell net made by twisting and knitting metal wires or synthetic resin filaments is known. The tortoiseshell net is composed of two adjacent sides that are twisted together, and has excellent strength and durability.
Of these, the tortoise shell-shaped netting, which is made by twisting and knitting synthetic resin filaments, is more durable than the tortoise shell-shaped wire netting using metal wires in that it does not cause rust or corrosion, and furthermore, it has strength and mesh rules. It has also been developed to have excellent properties.
As such a device, there is an apparatus for manufacturing a plastic tortoiseshell net of Japanese Patent No. 4926126 developed by the applicant of the present application. In this manufacturing device, after twisting two plastic wires together, in order to form the hexagonal shape again, the two wires after twisting are opened to the left and right sides, and the two opened wires have adjacent After twisting different wires together, the original two wires are pulled from the left and right sides toward the center and twisted together.

Patent No. 4926126

By the way, after two plastic wires are twisted together, in order to recreate the tortoise shell shape, the two wires are opened on both sides after being twisted together. Moreover, if there is an imbalance in tension between the left and right wire rods, the wire rod with the weaker tension will be attracted to the wire rod with the stronger tension and will wind up, causing an abnormally twisted portion.
A plastic tortoiseshell net (see FIG. 11) containing many abnormally twisted parts loses its durability and appearance, loses its value as a product, and is discarded as a defective product. Therefore, in order to avoid this, a skilled engineer performs monitoring, and after confirming the occurrence of abnormal twisting, immediately corrects the tension of the wire rod that is the cause, realizing a high-quality plastic tortoiseshell net.
However, it is necessary to confirm that the difference between the normal twisted portion (see FIG. 12(A)) and the abnormal twisted portion (see FIGS. 12(B) and (C)) is small, and that a plurality of twisted portions can be confirmed instantaneously. For this reason, the current situation is that the detection of abnormally twisted parts depends on skilled technicians.
Moreover, even experienced engineers sometimes miss the occurrence of abnormal twists, which makes it difficult to eradicate the defect rate of plastic tortoiseshell nets.

In view of the above problems, the present invention was invented to solve the problems. can be automatically corrected using AI (artificial intelligence) technology to manufacture high-quality plastic tortoise nets without relying on skilled technicians. is to provide a manufacturing apparatus for

In order to achieve the above objects, the present invention provides a large number of twisting half-split gears having through-holes of plastic wire rods, which are arranged in pairs in the mesh width direction, and which are matched with each other. After the two plastic wires inserted through the through holes of the split gears are twisted several times by rotating a pair of matching half split gears for twisting, one or both of them are separated and shifted in the net width direction. Two plastic wires inserted through the through-holes of the half-split gears are rotated by the rotation of the newly matched pair of half-split gears for twisting that are matched with the other half-split gears for twisting that are adjacent to each other. A mesh twisting mechanism that repeats twisting several times and returning to the original position to match the half-split gear for twisting and rotate is provided behind the mesh twisting mechanism. A mesh twist prevention mechanism having a twist prevention half gear corresponding to each twist prevention half gear is arranged, and each twist prevention half gear of the mesh twist prevention mechanism is made of plastic. The mesh twisting mechanism rotates and separates in the width direction in synchronism with the rotation of the twisting half-split gear of the mesh twisting mechanism and the separation transition in the mesh width direction. and a guide gear that rotates in synchronization with the rotation of each pair of half-split gears of the mesh twist prevention mechanism, and one of the twist prevention half-split gears of the mesh twist prevention mechanism that is matched and paired. A front delivery bobbin that supplies a plastic wire rod to one of the twisting half-shaped gears of the twisting mechanism and is provided inside the rotating guide gear, and the twisting of the mesh twisting prevention mechanism that is matched and paired. Through the other half-split gear for prevention, the other half-split gear for twisting of the mesh twisting mechanism is hooked on the outer peripheral groove of the guide gear to supply the plastic wire to the other half-split gear. a rear delivery bobbin; and a guide device provided between the front delivery bobbin and the rear delivery bobbin for changing the plastic wire delivered from each rear delivery bobbin to the corresponding guide gear. A return mechanism is provided behind each of the mesh twist prevention mechanisms, and a plastic wire is inserted through the through holes of the corresponding half-split gears of the front and rear mesh twist mechanism and the mesh twist prevention mechanism. Each is connected by a hollow heat-conducting insertion pipe, and the inner plastic wire is uniformly distributed through the heat-conducting insertion pipe in the area where the heat-conducting insertion pipe is piped between the front and back mesh twisting mechanism and the mesh twisting prevention mechanism. provided with a heating device for heating the net, and having at least recesses in front of the net twisting mechanism at locations corresponding to each twisted portion in the net width direction of the tortoiseshell net sent out from the net twisting mechanism, and After moving a little forward at the same speed as the feeding speed of the tortoiseshell net from the net twisting mechanism, it instantly returns to the original position, and a comb-shaped forming and holding disc that repeats this operation is provided. An AI device is provided for correcting an abnormally twisted portion state of each twisted portion of each plastic wire sent forward from each through-hole to a normal twisted portion, and the AI device is provided for each through-hole of a net twisting mechanism. A plurality of twisted part imaging devices that photograph each twisted part of the plastic wire rod sent out from the AI When the device detects an abnormally twisted part of the plastic wire rod, the tension adjustment part adjusts the tension of the tension adjustment wire rods that are linearly attached to both ends of the plastic tortoiseshell net in the longitudinal direction to detect the abnormal twisting of the plastic wire rod. It consists of means for automatically correcting the twisted portion to a normal twisted portion in which there is no bias in tension between the left and right wire rods.

According to the plastic tortoise net manufacturing apparatus using AI technology according to the present invention, which is equipped with means for solving the above problems, a plurality of twisted parts are generated by twisting left and right plastic wire rods. , using AI technology to detect abnormal twists that occur when the tension of the left and right plastic wire rods is uneven, and adjust the tension of the tension adjustment wires at both ends of the plastic tortoiseshell net. As a result, the abnormally twisted portion can be automatically corrected to a normal twisted portion in which there is no bias in tension between the left and right wire rods.
As a result, a high-quality plastic tortoise shell net can be manufactured without relying on skilled technicians.
Moreover, the production equipment for plastic turtle-back nets using this AI technology can halve the frequency of defective plastic turtle-net nets compared to conventional manufacturing equipment that relies on the visual inspection of skilled engineers. can.
For example, the conventional defect rate was about 5 to 8%, but the use of AI technology has reduced the defect rate to about 3%.
Monitoring using AI technology can eliminate the need for constant monitoring by a skilled engineer, contributing to omission. In addition, when an abnormality occurs, AI technology is used to notify a skilled engineer of the abnormality, so that the skilled engineer can handle it.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall schematic view of a plastic tortoise shell net manufacturing apparatus using AI technology showing a mode for carrying out the present invention. FIG. 3 is a partial perspective view of the half-split gears of the mesh twisting mechanism and the mesh twisting preventing mechanism showing the embodiment of the present invention during rotation. FIG. 10 is a partial perspective view of the half-split gears of the mesh twisting mechanism and the mesh twisting prevention mechanism showing the mode for carrying out the present invention when the half-split gears are separated and transitioned in the mesh width direction; It is a partial perspective view of the untwisting mechanism which shows the form for implementing this invention. 1 is a partial perspective view of a forming holding disc showing a form for carrying out the invention; FIG. (A) to (C) are partial plan cross-sectional views for explaining the operation of the shaping and holding disc showing the mode for carrying out the present invention. 1 is a schematic diagram of an AI device showing a mode for carrying out the present invention; FIG. (A) is a partial enlarged plan view of a linear normal twist portion of a tortoise shell net detected by an AI device showing a mode for carrying out the present invention; FIG. 10C is a partially enlarged plan view of an abnormal dogleg-shaped twisted portion, and FIG. 1C is a partially enlarged plan view of an abnormal dogleg-shaped twisted portion of the tortoise shell net detected by the AI device. (A) is a partial plan view of a tortoiseshell net with tension adjusting wires attached to both left and right ends, showing a mode for carrying out the present invention, and (B) is a portion of the tortoiseshell net from which the tension adjusting wire is removed It is a top view. FIG. 4 is a partial plan view of a tortoiseshell net consisting of normal twisted parts; FIG. 4 is a partial plan view of a tortoise shell net consisting of abnormally twisted parts; (A) is a partially enlarged plan view of the normally twisted portion of the tortoiseshell-shaped net, and (B) and (C) are partially enlarged plan views of the abnormally twisted portion of the tortoiseshell-shaped net.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described more specifically based on the modes for carrying out the invention described in the drawings.
In the figure, an apparatus 1 for manufacturing a plastic tortoiseshell net consists of a net twisting mechanism 2 for twisting plastic wires a into a tortoiseshell net b, a net twisting prevention mechanism 3 disposed behind it, and a guide. A gear 41, a front delivery bobbin 42 for delivering a plastic wire a, a rear delivery bobbin 43, and an untwisting mechanism 4 having a guide device 44 installed therebetween. 2 and the mesh twisting prevention mechanism 3, a heating device 5 for uniformly heating the plastic wire rod a inside through a heat-conducting insertion tube 51, and a tortoiseshell-shaped net b installed in front of the mesh twisting mechanism 2. and the state of the abnormally twisted portion f2 of each twisted portion f of the plastic wire rod a delivered from the mesh twisting mechanism ₂ is automatically corrected to the normal twisted portion _f1. AI device 8 is provided.

The mesh twisting mechanism 2 rotates with the pair of twisting half-split gears 21 and 22 matching each other and repeats the separation transition of the pair of twisting half-split gears 21 and 22 in the mesh width direction. The wire material a is woven into a tortoiseshell net b. The tortoiseshell net b is continuously formed forward by the net twisting mechanism 2 thereof. Racks 23 for rotating the twisting half gears 21 and 22 by meshing are arranged above and below the mesh twisting mechanism 2 .

The mesh twisting mechanism 2 has through holes 21a and 22a for the plastic wire rods a, and for example, a number of twisting half-split gears 21 and 22 paired up and down are arranged side by side in the mesh width direction to match each other. Two plastic wires a inserted through the through holes 21a and 22a of the pair of twisting half-split gears 21 and 22 are twisted several times by rotating the pair of twisting half-split gears 21 and 22 that are aligned vertically. After joining, one or both of them are separated and shifted in the net width direction, and are vertically matched with other adjacent twisting half-split gears 21 and 22, respectively, to newly match a pair of twisting half-split gears. 21 and 22 are rotated to twist the two plastic wires a inserted through the through holes 21a and 22a of the half gears 21 and 22 several times, and the twisting half gears are returned to their original positions. It is knitted into a tortoiseshell net b while repeating the rotation of the gears 21 and 22 which are matched at the top and bottom.

That is, the mesh twisting mechanism 2 has a structure in which, for example, a number of upper and lower twisting half-split gears 21 and 22 are arranged side by side in the mesh width direction. Through-holes 21a and 22a are formed in the twisting half-split gears 21 and 22, which are aligned vertically to form a pair, and a plastic wire a is inserted through the through-holes 21a and 22a. . The twisting half-split gears 21 and 22 paired at the top and bottom are structured to rotate several times after being matched at the top and bottom. One or both of the twisting half-split gear 21 on the upper side and the twisting half-split gear 22 on the lower side are separated and shifted in the mesh width direction to form another twisting half-split gear 21, 22 above and below.

At the rear of the mesh twisting mechanism 2, there are twist prevention half-split gears 31, 32 corresponding to the twisting half-split gears 21, 22 of the mesh twisting mechanism 2, respectively. A combination prevention mechanism 3 is arranged. The mesh twisting prevention mechanism 3 is provided to prevent the tortoiseshell mesh b from being woven together due to the heat-conducting insertion pipe 51 piped between the mesh twisting mechanism 2 in front. It is.

The twist-preventing half-split gears 31 and 32 of the mesh twist-preventing mechanism 3 have through holes 31a and 32a, respectively, through which the plastic wire rods a are inserted. In addition, the twist-preventing half-split gears 31, 32 of the mesh twisting prevention mechanism 3 are synchronized with the rotation of the twisting half-split gears 21, 22 of the mesh twisting mechanism 2 and the separation transition in the mesh width direction. It has a structure in which it rotates and separates and shifts in the net width direction. The mesh twist prevention mechanism 3 is provided with upper and lower racks 33 for rotating the twist prevention half gears 31 and 32 by meshing.

The mesh twisting prevention mechanism 3 has substantially the same structure as the mesh twisting mechanism 2, and operates in the same manner as the mesh twisting mechanism 2. 21, 22 and the twisting prevention half-shaped gears 31, 32 of the mesh twisting prevention mechanism 3 corresponding to them one-on-one. This is to prevent contact and twisting of the shape gears 21 and 22 against rotation and movement of separation in the mesh width direction.

In other words, if the heat-conducting insertion tubes 51 come into contact with each other or are twisted together, the rotation of the half-split gears 21 and 22 for twisting of the mesh twisting mechanism 2 and the separation transfer in the mesh width direction are hindered, or a failure is caused. Then, the heat-conducting insertion tube 51 is damaged or bent, and the inserted plastic wire a is cut or twisted, and the tortoiseshell net b cannot be woven. In order to prevent this, the mesh twist prevention mechanism 3 is arranged behind the mesh twist mechanism 2 .

The twist untwisting mechanism 4 prevents the twisting of the net twisting because the plastic wire a continuously supplied to the net twisting preventing mechanism 3 is twisted by the net twisting mechanism 2 to add a twisting habit. By untwisting the plastic wire rods a that are continuously supplied to the mechanism 3, the plastic wire rods a that are twisted by the mesh twisting mechanism 2 are prevented from being twisted, and the tortoiseshell net is formed. It functions to prevent the shape of b from being formed smoothly and to prevent its strength from being lowered.

In the untwisting mechanism 4, the plastic wire rods a continuously supplied to the mesh twisting prevention mechanism 3 are separated from each other by the twist prevention half-split gears 31 and 32 of the mesh twisting prevention mechanism 3. The plastic wires a can be smoothly delivered toward the mesh twist prevention mechanism 3 by preventing them from being entangled by the rotation and separation transfer movement in the mesh width direction.

The untwisting mechanism 4 comprises a guide gear 41, a front feeding bobbin 42 for feeding the plastic wire a, a rear feeding bobbin 43 for feeding the plastic wire a, a guide device 44, and the like. , a front delivery bobbin 42 in the guide gear 41, a guide device 44, and a rear delivery bobbin 43 are provided in this order toward the rear.

The guide gear 41 rotates in synchronization with the rotation of each pair of half-split gears of the mesh twisting mechanism 2 and the mesh twisting preventing mechanism 3 . A number corresponding to the number of front delivery bobbins 42 are provided. Further, it is provided behind the mesh twist prevention mechanism 3 . A gear is formed on the outer periphery of the guide gear 41, and a rotating gear 41a that meshes with the gear and rotates the guide gear 41 is provided. A part of the outer periphery of the guide gear 41 is formed with an outer peripheral side groove 41b for hooking and rotating the plastic wire a supplied from the rear supply bobbin 43 .

The front delivery bobbin 42 is fed through one of the half-split twisting gears 31 or 32 of the mesh twisting prevention mechanism 3 which is matched and paired with one of the half-split twisting gears 21 of the mesh twisting mechanism 2 or 22, the plastic wire a is supplied. A plastic wire a is wound around the front delivery bobbin 42 . A front dispensing bobbin 42 is provided inside the guide gear 41 for rotation. The front dispensing bobbin 42 is provided so as not to rotate substantially with respect to the rotating guide gear 41 .

The rear delivery bobbin 43 is connected to the other half-split gear 21 or 22 of the mesh-twisting mechanism 2 through the other of the twist-preventing half-split gears 31 or 32 of the mesh-twisting prevention mechanism 3 which is paired with each other. , a plastic wire a that is hooked on the outer peripheral groove 41b of the guide gear 41 and rotates is supplied. A plastic wire a is wound around the rear delivery bobbin 43 . It is arranged behind the guide gear 41 and the guide device 44 .

The guide device 44 is provided between the front delivery bobbin 42 and the rear delivery bobbin 43 , and is a device for replacing the plastic wire a delivered from each rear delivery bobbin 43 with the corresponding guide gear 41 . The guide device 44 is provided with a locking piece 44a on which a plastic wire rod a is hooked. Interlocking with the movement of separation in the net width direction, the engaging piece 44a moves vertically and horizontally to smooth delivery of the plastic wire a from the rear delivery bobbin 43. As shown in FIG.

Through holes of the corresponding half-split gears 21 and 31 and 22 and 32 of the front and rear mesh twisting mechanism 2 and mesh twisting prevention mechanism 3 are hollow heat-conducting insertion holes through which the plastic wire rod a is inserted. They are connected to each other by pipes 51 . The heat-conducting insertion pipes 51 are arranged in parallel between the front and rear mesh twisting mechanisms 2 and the mesh twisting preventing mechanisms 3 in the same number as the number of half-split gears.

That is, one end of a certain heat-conducting insertion tube 51 is connected to the through hole 21a of the twisting half-split gear 21 of the mesh twisting mechanism 2, and the other end of the heat-conducting insertion tube 51 is connected to the twisting half-split gear 21. Correspondingly, it is connected to the through hole 31a of the twist prevention half-split gear 31 of the mesh twist prevention mechanism 3 which rotates and separates in the mesh width direction in synchronization. Similarly, one end of another heat-conducting insertion tube 51 is connected to the through hole 22 a of the twisting half-split gear 22 of the mesh twisting mechanism 2 , and the other end of the heat-conducting insertion tube 51 is connected to the twisting half-split gear 22 . is connected to the through hole 32a of the half split gear 32 for preventing twisting of the mesh twist preventing mechanism 3 which rotates and moves apart in the mesh width direction in synchronism with.

Each heat-conducting insertion tube 51 has a hollow interior, and a single plastic wire a is inserted through the hollow interior. When the plastic wire rod a is inserted from the twist prevention half-split gears 31 and 32 of the mesh twist prevention mechanism 3 to the corresponding twisting half-split gears 21 and 22 of the mesh twist mechanism 2, this By using the heat-conducting insertion tube 51, it can be easily inserted without fail.

Further, each heat-conducting insertion tube 51 is composed of, for example, a metallic cylindrical tube having thermal conductivity. When each heat-conducting insertion tube 51 is heated by the heating device 5, the heat is transmitted to the entire heat-conducting insertion tube 51 having thermal conductivity. Each inserted plastic wire rod a is uniformly heated and softened by the heat-conducting insertion tube 51 to which the heat is transmitted to the whole while moving inside toward the net twisting mechanism 2 side. The softened plastic wire rods a do not generate twist resistance during twisting, and are smoothly twisted to form a tortoiseshell net b.

The heating device 5 is a device for uniformly heating the plastic wire rod a inserted through the heat-conducting insertion tube 51 as described above, and is provided between the front and rear mesh twisting mechanisms 2 and the mesh twisting preventing mechanisms 3. It is provided in a region where a large number of heat-conducting insertion pipes 51 are arranged side by side. The heating device 5 is arranged in a transverse direction with respect to a large number of heat-conducting insertion pipes 51 arranged side by side. An electric heater, for example, is used as the heating device 5 . Between the mesh twisting mechanism 2 and the mesh twisting prevention mechanism 3 in which the heating device 5 and the heat-conducting insertion tubes 51 are arranged, there is, for example, a sealed space so as to prevent heat from leaking to the outside.

In front of the net twisting mechanism 2, for example, two forming holding discs 6 are provided in the front and rear for holding the shape of the turtle shell net b that has been woven into the tortoise shell net b by the net twisting mechanism 2 and sent out. ing. The two forming holding discs 6 are integrally connected by a connecting plate 62 and perform exactly the same operation. Each shaping and holding disk 6 has at least recesses 61 at locations corresponding to the twisted portions f in the net width direction of the tortoiseshell net b delivered from the net twisting mechanism 2, After moving a little forward at the same speed as the feeding speed of the tortoiseshell net b, it instantly returns to its original position and repeats this operation. Both forming and holding discs 6 connected by the connecting plate 62 are structured to be driven in conjunction with the mesh twisting mechanism 2 by a driving mechanism (not shown).

Each concave portion 61 is, for example, rounded so as not to be damaged when each twisted portion f is pressed from above. It is formed in a comb tooth shape when viewed from above. A large number of recesses 61 formed on the lower surface of the laterally elongated shaped holding disc 6 are engaged with twisted portions f in the net width direction of the tortoiseshell net b delivered from the net twisting mechanism 2 . In this case, the twisted portions f of the tortoiseshell net b are engaged with the concave portions 61 of the forming holding disc 6 every other one. That is, in the concave portion 61, there alternately appear places where the twisted portions f of the tortoiseshell net b are engaged and empty portions where they are not engaged.

In addition, the recesses 61 formed in the lower surfaces of the two molding holding discs 6 arranged in the front and rear are formed in the same position in the front and rear. In the two front and rear shaping holding discs 6, the twisted portions f on both sides of the hexagonal net b are located at the center of the hexagon in the front and rear. The part where the twisted part f of b is engaged is different. That is, when the twisted portion f of the tortoiseshell net b is engaged with the concave portion 61 of the front forming and holding disc 6, the concave portion 61 of the rear forming and holding disc 6 at the same position as that point is empty. there is

Of these, the rear shaping and holding disk 6 located on the immediate side of the mesh twisting mechanism 2 aligns the twisted portions f, which are the left and right sides of the hexagon of the hexagonal net b immediately after being delivered from the mesh twisting mechanism 2. Each concave portion 61 on each side presses from above and engages. Then, in the engaged state, at the same speed as the delivery speed of the hexagonal net b, the length of the twisted portion f, which is both the left and right sides of the hexagon of the hexagonal net b, and the next hexagonal net b from the end of the twisted portion f. After moving forward by the total distance of the length of the sine (the side opposite to the oblique side of sine) to the beginning of the twisted portion f, the forming and holding disc 6 instantly returns to its original position and repeats this operation.

When the two plastic wire rods a that constitute the twisted portions f, which are the left and right sides of the hexagon of the tortoiseshell net b, are delivered from the twisting half-split gears 21 and 22 of the mesh twisting mechanism 2, the upper and lower As the twisting half-split gears 21 and 22 separate left and right, they separate left and right from the terminal end of the twisting part f, and match with the adjacent twisting half-split gears 21 and 22 above and below and rotate. Thus, the two plastic wires a are twisted together. Thus, the tortoiseshell net b is knitted.

At this time, when the two plastic wires a separate from the ends of the twisted portions f to the left and right, even if they are pulled strongly to the left and right, the ends of the twisted portions f are formed on the lower surface side of the forming holding board 6. Since it is engaged with the concave portion 61, it is held at the central position without being pulled in either the left or right direction, and the hexagonal shape of the tortoiseshell is maintained.

In particular, since the plastic wire rod a immediately after being twisted is softened by heating, if the softened state of the left and right plastic wire rods a is slightly different, they will be pulled in either direction to the left or right, resulting in a tortoiseshell shape. Although it is conceivable that it will collapse, the end side of each twisted portion f is engaged with and held by the concave portion 61 by the function of the forming and holding disk 6, so that it is not pulled in either the left or right direction, and the tortoise shell is not pulled. It can hold the shape of the shape.

Another forming holding disc 6 located in front presses and engages from above the twisted portions f located in the central portions of both sides of the hexagon of the hexagonal net b, which the forming holding disc 6 in the rear presses and engages. However, since it is integrally connected with the rear molding holding disk 6 by the connecting plate 62, it operates in exactly the same manner. Immediately after being woven into a tortoiseshell shape, the tortoiseshell net b is softened by the heating immediately before and may be deformed. The shape is maintained.

Immediately behind the shaping and holding disk 6, a cylindrical delivery roller 7 is installed to deliver the tortoise shell net b immediately after being knitted forward. Pins 71 protrude from the circumferential side surface of the delivery roller 7 at regular intervals in the width direction and the circumferential direction. By pulling, the tortoiseshell net b moves forward and is wound up by a winding device (not shown) installed in front.

The AI device 8 uses AI (artificial intelligence) technology to detect the abnormally twisted portions f of the plastic wire rods a sent forward from the through holes 21a and 22a of the mesh twisting mechanism 2. This is a device for automatically correcting the state of _f2 to the normal twisted portion _f1 to manufacture a high-quality plastic tortoiseshell net b.

The AI device 8 includes a plurality of twisted portion imaging devices 81 for photographing the twisted portions f of the plastic wire rods a sent out from the respective through holes 21a and 22a of the mesh twisting mechanism 2, and the twisted portion imaging devices 81. An image recognition processing unit 82 for judging whether the state of each twisted portion f is normal or abnormal based on the image data of each twisted portion f of the plastic wire rod a photographed by the image recognition processing unit 82, and A tension adjusting portion 83 for adjusting the tension of a tension adjusting wire rod 83a linearly attached in the length direction is provided.

Then, when the image recognition processing unit 82 of the AI device 8 determines that the twisted portion f of the plastic wire rod a is in the state of abnormally twisted portion _f2 , the AI device 8 adjusts the plastic tortoise net b through the left and right tension adjustment units 83 . By adjusting the tension of the tension adjusting wire rods 83a attached linearly in the length direction to the left and right ends of the wire rods a, the abnormally twisted portion _f2 is automatically changed to the normal twisted portion _f1 where there is no bias in the tension of the left and right wire rods a. to be corrected.

A twisted portion photographing device 81, which constitutes a part of the AI device 8, is a device for photographing each twisted portion f of the plastic wire a sent out from each of the through holes 21a and 22a of the mesh twisting mechanism 2. For example, A camera is used. A plurality of twisting unit photographing devices 81 are installed at intervals in the width direction of the plastic tortoiseshell net b sent forward from the net twisting mechanism 2, and are formed in the width direction of the plastic tortoiseshell net b. It is a device that photographs all the twisted parts f.

For this reason, each of the plurality of twisting part photographing devices 81 is arranged so as to photograph all the twisting parts f of the plastic tortoiseshell net b sent forward from the net twisting mechanism 2. They are installed at appropriate intervals in the width direction. Each twisting section photographing device 81 is attached obliquely upward in front of the net twisting mechanism 2, facing obliquely downward toward each twisting section f of the plastic tortoiseshell net b sent forward. Each twisted part photographing device 81 can photograph a plurality of adjacent twisted parts f at the same time and photograph all the twisted parts f without omission.

An image recognition processing unit 82 that constitutes a part of the AI device 8 determines whether the state of each twisted portion f is normal based on the image data of each twisted portion f of the plastic wire rod a photographed by the twisted portion photographing device 81 . It is built into a personal computer etc. to judge whether there is an abnormality. The image recognition processing unit 82 implements noise removal and extraction of the characteristics of the twisted part f of the plastic tortoiseshell net b by its own image processing.

That is, the image recognition processing unit 82 focuses on the bulges w at three points, which are the shape features of the twisted portion f of the plastic tortoiseshell net b. Specifically, the system extracts the positional relationship of three bulges w present in the bulge w as a feature quantity and detects anomalies.

Since the twisted portion f of the plastic tortoiseshell net b is generated by twisting two plastic wires a three times, one twisted portion f has three bulges w (Fig. 8 (A ) (B) (C)). The center positional relationship of this bulge w is extracted as a feature amount.

This is because, in the case of the normal twisted portion _f1 , the center positional relationship of the three bulges w is a straight line (see FIG. 8(A)). However, in the case of the abnormally twisted portion _f2 , the center positions of the three bulges w do not form a straight line. The abnormally twisted portion _f2 consists of two parts: a doglegged abnormally twisted portion _f2-1 (see FIG. 8B) and an inverted doglegged abnormally twisted portion _f2-2 (see FIG. 8C). known to fall into patterns. Machine learning of these features automates anomaly detection.

The tension adjusting parts 83 adjust the tension of tension adjusting wires 83a which are linearly attached to both ends of the plastic tortoise net b in the longitudinal direction thereof, and are arranged on both sides of the apparatus. The left and right tension adjustment units 83 adjust the tension of each of the left and right tension adjustment wires 83a, respectively, so that the abnormal twisted portion _f2 of the twisted portion f of the plastic wire a is normalized with no deviation in the tension of the left and right wires a. Automatically correct to the twisted part _f1 .

Each tension adjusting section 83 is provided with a winding drum 83b, and one end of a tension adjusting wire 83a is wound around each winding drum 83b. When the tension adjusting wire 83a is unwound forward from the winding drum 83b in the manufacture of the plastic tortoise shell net b, the winding drum 83b is braked as appropriate to adjust the rotational force thereof. The tension of each tension adjusting wire 83a is adjusted.

Each tension adjusting wire rod 83a attached linearly in the longitudinal direction to both ends of the plastic tortoiseshell-shaped net b is inferior in strength and durability to the plastic wire rods a constituting the plastic tortoiseshell-shaped net b. Its cross-section is small and, for example, nylon is used. Each tension adjusting wire rod 83a is cut and removed after the plastic tortoiseshell net b is manufactured.

Next, the operation based on the configuration of the mode for carrying out the invention will be described below.
The plastic wire a delivered from each front delivery bobbin 42 of the untwisting mechanism 4 disposed behind is passed through each through hole 31a of, for example, the half-split gear 31 for preventing twisting of the mesh twist prevention mechanism 3 in front of it. , and the inside of the heat-conducting insertion tube 51 is passed through, and the leading end side thereof emerges from the through hole 21a of the twisting half-split gear 21 of the mesh twisting mechanism 2 disposed in front thereof.

Similarly, the plastic wire a delivered from each rear delivery bobbin 43 of the twisting unwinding mechanism 4 disposed in the rear is passed through each corresponding front guide device 44 to each front corresponding front of the guide device 44 . It is hooked on the outer peripheral groove 41b of the guide gear 41 arranged on the outer periphery of the partial supply bobbin 42, and is attached to each through hole 32a of the mesh twist prevention mechanism 3, for example, the twist prevention half-split gear 32 in front of the guide gear 41. Each of them is inserted into the heat-conducting insertion pipe 51 and passed through the through hole 22a of the twisting half-split gear 22 of the mesh twisting mechanism 2 arranged in front thereof.

After the plastic wire rod a is set in the manufacturing apparatus 1 for the plastic tortoiseshell net b as described above, the electric heater of the heating device 5 is heated to heat the respective heat-conducting insertion tubes through which the plastic wire rod a is inserted. 51 is heated. When the heat-conducting insertion tube 51 is heated, the heat is transmitted to the entire heat-conducting insertion tube 51, and the plastic wire a inside thereof is uniformly heated and softened. After softening the plastic wire a to reduce the twisting resistance in this manner, the guide gear 41 and the guide device 44 of the mesh twisting mechanism 2, the mesh twisting prevention mechanism 3 interlocked therewith, and the untwisting mechanism 4 are used. etc. to operate.

The mesh twisting mechanism 2 to be operated is configured such that two plastic wires (a) inserted through the through holes 21a and 22a of the pair of twisting half gears 21 and 22 which are matched with each other are connected to the pair of twisting halves. After twisting several times by rotating the gears 21 and 22, one or both of them are separated and moved in the mesh width direction to match with the separate half-split twisting gears 21 and 22 provided adjacent to each other to newly match. By rotating the pair of twisting half gears 21 and 22, the two plastic wires a inserted through the through holes 21a and 22a of the half gears are twisted several times, and returned to the original position. It repeats matching with the half-split gears 21 and 22 for twisting and rotating. As a result, the tortoiseshell net b is knitted and sent out to the front of the net twisting mechanism 2 sequentially.

The heat-conducting insertion tube 51 behind the mesh twisting mechanism 2 and the half-split gears 31 and 32 for preventing twisting of the mesh twisting prevention mechanism 3 correspond to the half-split gears 21 for twisting of the mesh twisting mechanism 2, respectively. , 22 rotate and separate in the screen width direction in synchronism with the rotation and separation in the screen width direction.

Similarly, the untwisting mechanism 4 behind the mesh twisting prevention mechanism 3 is synchronized with the rotation of the half-split gears 21 and 22 for twisting of the mesh twisting mechanism 2 and the separation transition in the mesh width direction, and the front delivery bobbin is moved. 42 and the rear delivery bobbin 43 toward the mesh twisting preventing mechanism 3, the plastic wire rods a twisted by the mesh twisting mechanism 2 are untwisted. added is prevented. In addition, the plastic wires a that are continuously delivered to the mesh twisting prevention mechanism 3 rotate the twisting prevention half gears 31 and 32 of the mesh twisting prevention mechanism 3 and move in the mesh width direction. entanglement is prevented by the movement of the separation transition.

When the end side of the twisted portion f of the plastic wire rod a is sent out from the through holes 21a and 22a of the half-split gears 21 and 22 for twisting of the mesh twisting mechanism 2, the shaping holding disc 6 at the rear comes down from above. The end side of the twisted portion f is pressed and engaged into the concave portion 61 formed in the lower surface (see FIG. 6A). As a result, the terminal ends of the twisted portions f of the two plastic wires a in a softened state immediately after being sent out from the mesh twisting mechanism 2 are engaged and held by the concave portions 61 of the forming and holding disc 6 at the rear. be done. Immediately after that, the two plastic wires a are pulled to the left and right and separated, but since the terminal end side of each twisted portion f is held in the concave portion 61 of the forming holding board 6, it does not shift in the left and right direction, and the tortoise shell shape is maintained. It is possible to maintain the shape of

When the recessed portion 61 of the rear shaping and holding disc 6 closest to the mesh twisting mechanism 2 presses and engages the terminal end side of each twisted portion f of the two plastic wire rods a, the recessed portion 61 of the front shaping and holding disc 6 is engaged. simultaneously come down from above and hold down and engage with the terminal ends of the twisted portions f that have already been sent out one ahead.

After the recesses 61 of the front and rear molding holding discs 6 press and engage the terminal ends of the twisted portions f of the plastic wire rods a, the speed at which the tortoiseshell net b is delivered from the net twisting mechanism 2 is reduced. at the same speed, the length of the twisted part f, which is the left and right sides of the hexagon of the hexagonal net b, and the sine from the end of the twisted part f to the beginning of the twisted part f of the next hexagonal net b (for the oblique side of sin After moving forward by the total distance of the length of the opposite side) (see FIGS. 6(B) and (C)), it instantly moves upward and returns to its original position behind, and at the same time comes down again from above to twist the net. The ends of the twisted portions f of the plastic wire rod a immediately after being sent out from the coupling mechanism 2 are pressed and engaged (see FIG. 6(A)). The front and rear forming holding discs 6 repeat this operation.

Immediately after being woven into a tortoise shell shape, the tortoise shell net b is softened by the heating immediately before and may be deformed. Therefore, the hexagonal shape is prevented from being deformed and the shape is maintained.

By the way, after the two plastic wires a are twisted together, the two wires a after being twisted are opened to both sides in order to form the hexagonal shape again. Occasionally, if there is an imbalance in the tension of the left and right wire rods a, the wire rods a with weaker tension are attracted to the wire rods a with stronger tension and wind up, causing the abnormally twisted portion _f2 .

In order to detect this abnormally twisted portion _f2 , all the twisted portions f of the plastic wire rods a sent out from the respective through holes 21a and 22a of the mesh twisting mechanism 2 are collected by a plurality of twisted portions constituting the AI device 8. Photographing is performed by the twisting section photographing device 81 . Image data of each twisted portion f of the plastic wire rod a photographed by the twisted portion photographing device 81 is sent to an image recognition processing portion 82 that constitutes the AI device 8 . The image recognition processing unit 82 determines whether the state of each twisted portion f is normal or abnormal based on the image data of each twisted portion f.

The image recognition processing unit 82 examines the positional relationship of the three bulges w, which are the shape features of the twisted portion f of the plastic tortoiseshell net b. In the case of the normal twisted portion _f1 , the center positions of the three bulges w are aligned. On the other hand, in the case of the abnormally twisted portion _f2 , the center positions of the three bulges w are not aligned. Also, the abnormally twisted portion _f2 is classified into two patterns, a doglegged abnormally twisted portion _f2-1 and an inverted doglegged abnormally twisted portion _f2-2 . Using these characteristics, the twisted portion f of the plastic tortoiseshell net b is examined.

When the AI device 8 detects the abnormally twisted portion _f2 , the left and right tension adjustment units 83 adjust the tension adjustment wires 83a that are linearly attached to both ends of the plastic tortoiseshell net b in the longitudinal direction. By adjusting the tension, the abnormal twisted part _f2 of the twisted part f of the plastic wire rod a is automatically corrected to the normal twisted part _f1 in which the tension of the left and right wire rods a is not biased.

In addition, when the abnormally twisted portion _f2 is detected, the AI device 8 notifies the surrounding skilled engineers with an alarm or the like, contacts the skilled engineer in charge, and establishes a quick backup system by the skilled engineer. can be planned.

The tortoiseshell net b, woven by the net twisting mechanism 2 and automatically corrected by the AI device 8 to the normal twisted part f ₁ in which the tension of the left and right plastic wire rods a is not biased, is installed immediately behind the shaping and holding board 6. A pin 71 rotating toward the front side of the feeding roller 7 is moved forward by hooking and pulling the vertex side of the hexagonal hexagon, and is wound up by a winding device (not shown) installed in front. be done.

In addition, the tension adjustment wire rods 83a at both ends of the left and right ends, in which the abnormal twisted portion _f2 of the twisted portion f of the plastic wire rod a is corrected to the normal twisted portion _f1 in which the tension of the left and right plastic wire rods a is not biased, is then cut. removed.

It should be noted that the present invention is not limited to the embodiments for carrying out the invention described above, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

1 Plastic tortoise shell net manufacturing device 2 Net twisting mechanism 21 Twisting half-split gear 21a Through hole 22 Twisting half-split gear 22a Through hole 23 Rack 3 Net twist prevention mechanism 31 Twisting prevention half-split shape Gear 31a Through hole 32 Twisting preventing half-split gear 32a Through hole 33 Rack 4 Untwisting mechanism 41 Guide gear 41a Rotating gear 41b Outer peripheral groove 42 Front delivery bobbin 43 Rear delivery bobbin 44 Guide device 44a Locking piece 5 Heating device 51 Heat-conducting insertion tube 6 Forming and holding board 61 Recess 62 Connecting plate 7 Delivery roller 71 Pin 8 AI device 81 Twisting section camera 82 Image recognition processing section 83 Tension adjustment section 83a Tension adjustment wire rod 83b Winding drum a Plastic wire rod b Plastic Tortoise shell net f Twisted part
f ₁ Normal twist part
f ₂ abnormal twist
f ₂ -1 dogleg-shaped abnormal twist
f ₂ -2 U-shaped abnormal twist part w Bulge

Claims (1)

A large number of twisting half-split gears having through-holes of plastic wire rods are arranged side by side in the mesh width direction, and two gears are inserted through the through-holes of a pair of twisting half-split gears that match each other. After twisting the plastic wire several times by rotating a pair of matching half-split gears for twisting, one or both of them are separated in the mesh width direction and transferred to another half-split twisting gear that is adjacent to each other. The two plastic wires inserted through the through holes of the half-split gears are twisted several times by the rotation of the pair of twisting half-split gears that are matched and newly matched, and then returned to the original position. Equipped with a mesh twisting mechanism that repeats matching and rotating with the half-split gear for twisting,
Behind the mesh twisting mechanism, a mesh twisting prevention mechanism having half-split gears for preventing twisting corresponding to the half-split gears of the mesh twisting mechanism is arranged. Each anti-twisting half gear of the anti-twisting mechanism has a through hole for a plastic wire rod, and is synchronized with the rotation of the half-split twisting gear of the mesh twisting mechanism and the separation transition in the mesh width direction. and separate and shift in the rotation and net width direction,
A guide gear that rotates in synchronism with the rotation of each pair of half-split gears of the mesh twisting mechanism and the mesh twisting prevention mechanism, and a pair of twist prevention half-split gears of the mesh twisting prevention mechanism. and feeds plastic wire to one of the twisting half gears of the mesh twisting mechanism through one of Through the other half-split gear for preventing twisting of the mechanism, the other half-split gear of the mesh twisting mechanism feeds and guides a plastic wire that is hooked on the outer circumferential groove of the guide gear and rotated. a rear delivery bobbin arranged behind the gear, and a guide device provided between the front delivery bobbin and the rear delivery bobbin for changing the plastic wire delivered from each rear delivery bobbin to the corresponding guide gear. A twist untwisting mechanism consisting of , is provided behind the mesh twisting prevention mechanism,
Through holes of corresponding half-split gears of the front and rear mesh twisting mechanisms and mesh twisting prevention mechanisms are connected to each other by hollow heat-conducting insertion tubes through which plastic wires are inserted, and the front and rear mesh twisting mechanisms are connected to each other. A heating device for uniformly heating the internal plastic wire through the heat-conducting insertion pipe is provided in the area where the heat-conducting insertion pipe is arranged between the meshing mechanism and the mesh twisting prevention mechanism,
In front of the net twisting mechanism, there are at least recesses at locations corresponding to the respective twisted parts in the net width direction of the tortoiseshell net fed from the net twisting mechanism, and the tortoiseshell net from the net twisting mechanism Provided with a comb-tooth shaped forming and holding disk that instantly returns to the original position after moving forward a little at the same speed as the feeding speed of the net, and repeats this operation,
An AI device is provided for correcting the abnormally twisted state of each twisted portion of the plastic wire rod sent forward from each through hole of the net twisting mechanism to a normal twisted portion,
The AI device includes a plurality of twisted part photographing devices for photographing each twisted portion of the plastic wire delivered from each through-hole of the mesh twisting mechanism, and each of the plastic wires photographed by the twisted portion photographing device. An image recognition processing unit that judges whether the state of each twisted portion is normal or abnormal based on the image data of the twisted portion, and a tension adjustment wire attached linearly in the length direction at both ends of the plastic tortoiseshell net. and a tension adjustment unit that adjusts the tension of
When the AI device detects an abnormally twisted part of the plastic wire, the tension of the tension adjustment wire attached to both ends of the plastic tortoise net in a straight line in the length direction is adjusted through the tension adjustment unit, thereby adjusting the tension of the plastic wire. automatically correcting an abnormally twisted portion to a normal twisted portion in which there is no bias in the tension of the left and right wire rods;
Manufacturing equipment for plastic tortoise nets using AI technology characterized by

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