JP2024040231A - Wire processing system and wire processing method - Google Patents

Abstract

[Problem] To automatically and accurately remove a joint portion of a wire to be processed. [Solution] A payout section 110 pays out a wire to be processed that is formed by joining a plurality of wires. A wire processing section 130 performs wire processing, including at least one of heat treatment and forming, on the wire to be processed paid out by the payout section 110. A storage section 150 stores the wire to be processed that has been subjected to wire processing by the wire processing section 130. A joint detection section 120 detects the passage of a joint portion of the wire to be processed paid out by the payout section 110. A cutting section 140 removes the joint portion of the wire to be processed by cutting the wire to be processed between the wire processing section 130 and the storage section 150 based on the detection result of the passage of the joint portion by the joint detection section 140. [Selected Figure] FIG.

Description

The present invention relates to a wire processing system and a wire processing method for processing wire.

2. Description of the Related Art Conventionally, a wire processing system is known in which a wire rod, which is a long steel material, is processed by passing the wire rod through a wire processing device. This wire treatment includes, for example, heat treatment such as quenching, shaping such as wire drawing, and the like.

In addition, in a wire processing system, in order to efficiently and uniformly process multiple wire rods, multiple wire rods are joined by welding etc. to form a single wire rod to be processed, and the wire rods are Methods for carrying out the treatment are known. For example, Patent Document 1 describes that each wire is heat-treated by welding the rear end of the first wire and the front end of the next wire and moving the welds continuously.

In addition, in a wire processing system, a method is employed in which a coiled wire wound around a drum or the like is sequentially unwound and fed out for wire processing, and the processed wire is wound up on a rotating drum or the like to be made into a coiled wire again. It has been known. As a technique related to this method, for example, Patent Document 2 describes that a binding wire is inserted when a long workpiece is wound around a drum a plurality of times to form a bundle of long workpieces.

Japanese Patent Application Publication No. 2016-221554 Japanese Patent Application Publication No. 2015-140210

In the method of joining multiple wire rods by welding etc. to make one wire rod to be treated and then processing the wire rod, unintended deterioration due to welding etc. may occur at the joint of the wire rods to be treated. It ends up. For this reason, it is desirable to remove the joint portion from the wire to be processed after wire processing.

For this purpose, for example, an operator visually monitors the wire passing through the wire processing equipment, and when the joint passes, the operator operates the cutting device downstream of the wire processing equipment to cut the joint. One possible method is to remove it by removing it.

However, this method requires the worker to remain in place for a long time. Furthermore, since the cutting device is operated by the operator, the joint may be mixed into the product if the joint is overlooked. Furthermore, in anticipation of variations in the timing of operations by workers, it is necessary to cut and remove the front and back portions of the joint portion to a longer length, which increases the amount of wire rods that are discarded. As described above, it is difficult to accurately remove only the joint portion from the wire to be processed.

The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a wire processing system and a wire processing method that can automatically and accurately remove joints of a wire to be processed.

A wire processing system according to one aspect of the present invention includes a feeding section that feeds out a wire to be processed formed by joining a plurality of wire rods, and at least one of heat treatment and shaping for the wire to be processed fed out by the feeding section. a wire processing unit that performs wire processing including a wire processing unit; a housing unit that accommodates the wire to be processed that has been subjected to the wire processing by the wire processing unit; and joining of the wire in the wire to be processed that is fed out by the feeding unit. cutting the wire to be processed based on a detection result of the passage of the joint by the joint detection section, between a joint detection section that detects passage of the joint, the wire processing section, and the storage section; and a cutting part for removing the joint part in the wire to be processed.

Further, in the wire processing method according to one aspect of the present invention, a wire to be processed formed by joining a plurality of wires is fed out, and the wire to be processed fed out by the feeding section is subjected to at least one of heat treatment and shaping. A wire processing unit performs wire processing including the following: the processed wire is accommodated in a storage unit, the wire to be processed is fed out by the feeding unit, and passage of the wire through a joint is detected; The bonded portion in the processed wire is removed by cutting the processed wire between the wire processing section and the housing section based on a detection result of passage of the bonded portion.

According to the present invention, it is possible to provide a wire processing system and a wire processing method that can automatically and precisely remove a joint portion of a wire to be processed.

FIG. 1 is a diagram (part 1) showing an example of a wire processing system 100 which is an embodiment of the wire processing system of the present invention. FIG. 2 is a diagram (part 2) showing an example of a wire processing system 100 which is an embodiment of the wire processing system of the present invention. It is a figure (part 3) showing an example of wire processing system 100 which is one example of the wire processing system of the present invention. FIG. 4 is a diagram (Part 4) showing an example of a wire processing system 100 which is an embodiment of the wire processing system of the present invention. FIG. 5 is a diagram (part 5) showing an example of a wire processing system 100 which is an embodiment of the wire processing system of the present invention. It is a figure (part 6) showing an example of wire processing system 100 which is one example of the wire processing system of the present invention. It is a figure (part 7) showing an example of wire processing system 100 which is one example of the wire processing system of the present invention. 3 is a diagram (part 1) showing an example of the configuration of a movable guide 113. FIG. FIG. 2 is a diagram (part 2) showing an example of the configuration of the movable guide 113; FIG. 2 is a diagram (part 1) showing an example of the configuration of the rear end detection section 114; FIG. 2 is a diagram (part 2) illustrating an example of the configuration of the rear end detection section 114;

Embodiments of the present invention will be described below with reference to the drawings.

(One embodiment of the wire processing system of the present invention)
1 to 7 are diagrams showing an example of a wire processing system 100, which is an embodiment of the wire processing system of the present invention.

The wire rod processing system 100 shown in FIG. This is a processing line that continuously processes wire rods.

A wire is a long material made of a metal material. The metal material is, for example, steel. The wire can be a long material having various shapes such as circular, rectangular, and triangular cross sections. Further, the wire may be a long material with an irregular cross section whose cross section is not constant.

The wire treatment for the wire includes at least one of heat treatment and shaping. The heat treatment is, for example, heat treatment such as hardening or tempering. This heat treatment is, for example, heat treatment such as induction hardening in which electromagnetic induction is caused by a high-frequency current in the wire to heat the surface of the wire to harden it. However, the heat treatment is not limited to this, and may be heat treatment using a method other than electromagnetic induction.

Forming is, for example, wire drawing in which the wire is stretched to reduce the diameter of the wire. However, the shaping is not limited to this, and may be, for example, an indentation process in which a deformed cross section is formed by rolling an indent roll on the wire, or other processes for various wires.

As shown in FIG. 1, the wire processing system 100 includes a feeding section 110, a joint detection section 120, a wire processing section 130, a cutting section 140, and a storage section 150.

<About the feeding section 110>
The feeding section 110 sequentially feeds out the wire rods to be processed and feeds them into the wire processing section 130 in order to pass the wire rods through the wire processing section 130 . The wire to be processed is, for example, one wire formed by welding together a plurality of wires to be processed by the wire processing unit 130, and includes a welded joint P1. In the example shown in FIG. 1, the wire to be processed includes a first wire 11 and a second wire 12.

The wire rods can be welded together using, for example, an electric resistance welding machine such as a butt welding machine. Further, the joint portion P1 of the wire rods joined using an electric resistance welding machine may be softened by heating again to ensure the toughness of the joint portion P1. Thereby, it is possible to suppress separation and destruction of the joint portion P1 in the wire processing section 130, which will be described later.

The wire rod to be processed that is fed out from the feeding section 110 is fed at a constant speed toward the cutting section 140 (rightward in FIG. 1) by a feeding device (not shown). This feeding device is provided at least between the wire processing section 130 and the cutting section 140 or between the cutting section 140 and the storage section 150, and feeds the processed wire by pulling the processed wire.

Specifically, the feeding section 110 includes a first drum 111, a second drum 112, a movable guide 113, rear end detection sections 114 and 115, and a guide control section 116.

A first wire 11 is wound around the first drum 111 in a coil shape. A second wire 12 is wound around the second drum 112 in a coil shape. The second wire 12 is a wire that undergoes wire processing immediately after the first wire 11 .

After installing the first drum 111 and the second drum 112, the first wire rod 11 and the second wire rod 12 are joined to form the above-mentioned wire rod to be processed. Here, of both ends of the wire, the end that is fed out first from the feeding section 110 is referred to as the front end of the wire, and the end opposite to the front end is referred to as the rear end of the wire.

In the state shown in FIG. 1, the front end of the first wire 11 has already been fed out from the feeding section 110 and has reached the storage section 150, which will be described later. The rear end of the first wire 11 is joined to the front end of the second wire 12 by welding.

The joint portion P1 is a portion where the rear end of the first wire rod 11 and the front end of the second wire rod 12 are joined by welding. For example, paint of a specific color (for example, blue) is applied to this joint P1 using a color spray or the like. This coloring with paint is performed, for example, after the first wire rod 11 and the second wire rod 12 are joined and before the rear end of the first wire rod 11 is fed out by the movable guide 113.

Further, the first drum 111 is installed such that the central axis of the winding of the first wire 11 (for example, the central axis 801 in FIG. 8) is perpendicular to the ground. Similarly, the second drum 112 is installed so that the central axis of the winding of the second wire 12 is perpendicular to the ground. That is, the first wire 11 and the second wire 12 are wound around an axis perpendicular to the ground.

The movable guide 113 includes a drawing section 113a that sequentially draws in the wire material to be processed that is separately wound on the first drum 111 and the second drum 112, and a drawing section 113a that directs the wire material to be processed that has been drawn in by the drawing section 113a toward the wire processing section 130. It has a sending part 113b that sends out. As an example, the movable guide 113 is a cylindrical member through which the wire to be processed passes.

As described above, the wire rods to be processed including the first wire rod 11 and the second wire rod 12 are sent toward the cutting section 140 (rightward in FIG. 1) at a constant speed. At this time, the wire to be processed is sequentially unwound from the front end, separated from the first drum 111 and the second drum 112, drawn into the retracting section 113a of the movable guide 113, and then pulled into the feeding section 113a of the movable guide 113. The wire is fed out from the wire rod processing section 113b.

Furthermore, under the control of the guide control unit 116 , the movable guide 113 is configured such that at least a portion of the lead-in portion 113 a is closer to the central axis of the winding of the first wire 11 than the central axis of the winding of the second wire 12 . and a second position closer to the central axis of the winding of the second wire 12 than to the central axis of the winding of the first wire 11. The first position and the second position are both higher than the first drum 111 and the second drum 112, that is, on the opposite side of the ground with respect to the first drum 111 and the second drum 112. It's the location.

In the state shown in FIG. 1, a portion of the first wire rod 11 of the wire rods to be processed is drawn into the movable guide 113. At this time, under the control of the guide control unit 116, the retracting portion 113a of the movable guide 113 is located at a higher position than the first drum 111, and is approximately at the central axis of the winding of the first wire 11 on the first drum 111. located at the top (first position).

As a result, the first wire rod 11 of the first drum 111 is pulled toward the lead-in portion 113a located in a direction close to the central axis of winding of the first wire rod 11, so that the winding of the first wire rod 11 is smoothed. The first wire rod 11 can be unwound and efficiently fed out.

Furthermore, the lead-in portion 113a may be pivotable around a position on the central axis of the winding of the first wire 11. Thereby, the winding of the first wire 11 can be unwound more smoothly. This configuration will be described later (see, for example, FIGS. 8 and 9).

The rear end detection unit 114 detects the pulling of the rear end of the first wire 11 wound around the first drum 111 by the movable guide 113 . That is, the rear end detection unit 114 detects that the first wire 11 wound around the first drum 111 is no longer present. Then, the rear end detection section 114 outputs a detection signal indicating the detection result to the guide control section 116.

Similarly, the rear end detection unit 115 detects the pulling of the rear end of the second wire 12 wound around the second drum 112 by the movable guide 113, and outputs a detection signal indicating the detection result to the guide control unit 116. do. The configuration of the rear end detection units 114 and 115 will be described later (see, for example, FIGS. 10 and 11).

The guide control unit 116 controls the position of the retracting part 113a of the movable guide 113 to the first position or the second position based on the detection results output from the rear end detection units 114 and 115. do.

For example, before the trailing end detection unit 114 detects that the trailing end of the first wire 11 is being pulled in, the guide control unit 116 changes the position of the pulling part 113a to the position of the trailing end of the first wire 11 as shown in FIG. near the central axis of the winding (first position).

After that, as shown in FIG. 2, it is assumed that the first wire 11 wound around the first drum 111 disappears and the joint P1 passes through the rear end detection section 114. In this case, the guide control section 116 displaces the retracting section 113a of the movable guide 113 to the state shown in FIG. 3 in response to the detection signal from the rear end detection section 114. That is, the guide control unit 116 positions the retracting portion 113a near the central axis of the winding of the second wire 12 (second position).

As a result, the second wire rod 12 of the second drum 112 is pulled toward the lead-in portion 113a located in a direction close to the central axis of winding of the second wire rod 12, so that the winding of the second wire rod 12 is smoothed. The second wire rod 12 can be unwound and efficiently fed out.

Further, the lead-in portion 113a may be pivotable around a position substantially on the central axis of the winding of the second wire 12. This allows the second wire 12 to be unwound more smoothly. This configuration will be described later (see, for example, FIGS. 8 and 9).

<About the joint detection section 120>
The joint detecting section 120 detects passage of the joint P1 of the wire to be processed, which is fed out by the feeding section 110, between the feeding section 110 and the wire processing section 130.

Specifically, the joint detection unit 120 includes an optical sensor 121 that optically senses the wire to be processed that is sent from the feeding unit 110 to the wire processing unit 130. The optical sensor 121 detects the specific color (blue as an example) in the wire sent from the feeding section 110 to the wire processing section 130 and outputs a detection signal indicating the detection result to the cutting section 140. For example, as shown in FIG. 4, when the joint P1 passes near the optical sensor 121, the optical sensor 121 outputs a detection signal to the cutting unit 140 indicating that the joint P1 of the wire to be processed has been detected.

The optical sensor 121 includes, for example, an imaging device that images the wire, and detects the joint P1 by detecting a region of a specific color from an image obtained by the imaging device. However, the configuration of the optical sensor 121 is not limited to this. For example, the optical sensor 121 may be configured with a color filter that allows only light of a specific color to pass through, and a photoelectric conversion element that converts the light that has passed through the color filter into an electrical signal.

The joint detection section 120 detects the passage of the joint P1 between the feeding section 110 and the wire processing section 130, that is, at a stage before the wire processing section 130, so that the paint for detecting the joint P1 can be applied to the wire rod. Even if it disappears or attenuates due to wire treatment in the processing section 130, the joint P1 can be detected.

<About the wire processing section 130>
The wire processing unit 130 performs the above-described wire processing on the wire to be processed that is fed out by the feeding unit 110 and passes through the wire processing unit 130 . In the example shown in FIG. 1, the wire processing section 130 includes a heat treatment device 131 that performs heat treatment such as induction hardening on the wire to be processed. In this case, the wire processing section 130 includes a coil for generating electromagnetic induction by a high-frequency current in the wire to be processed, and a power supply circuit for causing the high-frequency current to flow through the coil.

<About the cutting section 140>
The cutting section 140 cuts the wire to be processed between the wire processing section 130 and the storage section 150 based on the detection result of the passage of the joint P1 by the joint detection section 120, thereby removing the joint from the wire to be processed. Remove P1.

Specifically, the cutting section 140 includes a cutter 141 and a cutting control section 142. The cutter 141 cuts the wire to be processed between the wire processing section 130 and the storage section 150. The cutting control unit 142 controls cutting of the wire to be processed by the cutter 141 by driving the cutter 141.

As described above, the wire rod to be processed fed out by the feeding section 110 is sent to the cutting section 140 at a constant speed. Therefore, the time from when the joint detection section 120 detects the passage of the joint P1 to when the joint P1 reaches the cutter 141 depends on the constant speed at which the wire to be processed is fed, the optical sensor 121, and the cutter 141. 141, and a constant time t1 (distance/velocity) depending on the distance.

Based on the detection signal output from the optical sensor 121 of the joint detection section 120, the cutting control section 142 specifies the timing t0 at which the passage of the joint P1 is detected by the joint detection section 120, and the specified timing t0. The timing t0+t1 at which the above-mentioned fixed time t1 has elapsed is specified as the timing at which the joint P1 reaches the cutter 141.

Then, the cutting control unit 142 cuts the cutter at a timing (t0+t1-α) earlier than the timing t0+t1 when the joint part P1 reaches the cutter 141, and at a timing (t0+t1+α) later than the timing t0+t1 when the joint part P1 reaches the cutter 141. 141 to cut the wire to be processed (α is time). Thereby, it is possible to cut the wire to be processed before and after the joint P1 (for example, the part immediately before and the part immediately after), and remove the joint P1 from the wire to be processed.

For example, when a certain period of time t1 (more specifically, t1-α) has elapsed after the detection signal is output from the optical sensor 121 to the cutting control unit 142 in the state shown in FIG. 4, cutting is performed as shown in FIG. The control unit 142 causes the cutter 141 to cut the wire to be processed twice. As a result, the front and back of the joint P1 are cut, and the waste wire D1 including the joint P1 is removed. Therefore, the first wire 11 that does not include the joint P1 whose properties have changed due to welding can be accommodated in the housing section 150. The waste wire D1 including the joint P1 is discarded.

Further, by cutting the wire to be processed at the position of the joint portion P1, the wire to be processed can be cut so as to be divided into the first wire 11 and the second wire 12.

In this way, even if the joint detection section 120 is configured to detect the passage of the joint P1 at a stage before the wire processing section 130, it is possible to detect the passage of the joint P1 after a certain period of time t1 has passed since the joint detection section 120 detects the joint P1. By later cutting the wire to be processed by the cutting unit 140, the joint portion P1 of the wire to be processed can be cut and removed at a subsequent stage of the wire processing unit 130.

Further, as described above, the wire to be processed is sent to the cutting section 140 at a constant speed. For this reason, when cutting the wire to be processed, it is preferable that the cutter 141 performs traveling cutting in which the cutter 141 moves in a direction parallel to the moving direction (feeding direction) of the wire to be processed.

Thereby, when it takes time for the cutter 141 to cut the wire to be processed, it is possible to prevent the cutter 141 from hindering the feeding of the wire to be processed. Therefore, when cutting the wire to be processed by the cutter 141, the first wire 11 and the second wire 12 included in the wire to be processed are cut without stopping the feed of the wire to be processed or the wire processing by the wire processing section 130. Wire processing can be performed continuously.

It is desirable that the moving speed of the cutter 141 in the direction parallel to the moving direction of the processed wire be the same as the feeding speed of the processed wire. This can prevent damage to the cutter 141 during cutting.

Further, when cutting the wire to be processed (for example, cutting before and after the joint portion P1), the cutting control unit 142 outputs a notification signal indicating that the wire to be processed has been cut to the storage unit 150.

<About the housing section 150>
The accommodating section 150 accommodates the wire to be processed which has been subjected to wire processing by the wire processing section 130 . Specifically, the storage section 150 includes a guide 151, a sorting section 152, a first winding device 153, and a second winding device 154. The guide 151 and the distribution section 152 alternately distribute the wire rods cut by the cutting section 140 to the first winding device 153 and the second winding device 154.

In the states shown in FIGS. 1 to 5, the distribution section 152 is sending the first wire 11 to the first winding device 153. Thereby, the first wire 11 is wound up by the first winding device 153.

When the above-mentioned notification signal is output from the cutting control section 142, the distribution section 152 is displaced as shown in FIG. Induce. As a result, as shown in FIG. 7, the distribution section 152 enters a state in which the second wire rod 12 is sent to the second winding device 154, and the second wire rod 12 is wound up by the second winding device 154.

In this way, each time the wire to be processed is cut at the position of the joint P1, the destination of the wire to be processed can be automatically switched between the first winding device 153 and the second winding device 154. . As a result, when cutting the wire to be processed by the cutter 141, the first wire 11 and the second wire 12 included in the wire to be processed are cut without stopping the feed of the wire to be processed or the wire processing by the wire processing section 130. The first wire rod 11 and the second wire rod 12 can be individually wound while performing wire rod processing continuously.

(About adding wire)
In FIGS. 1 to 7, a situation has been described in which the object to be fed out by the feeding unit 110 shifts from the first wire rod 11 to the second wire rod 12. For example, in the states shown in FIGS. 4 to 7, the first wire rod In place of the first drum 111 in which the wire rod 11 is removed, a new drum (not shown) may be installed on which a third wire rod for performing wire rod processing after the second wire rod 12 is wound. In this case, the front end of the third wire rod and the rear end of the second wire rod 12 are joined by welding, and the vicinity of the rear end of the second wire rod 12 is passed through the rear end detection section 115.

By doing this, when the second wire 12 wound around the second drum 112 runs out, the displacement of the rear end of the second wire 12 (see FIG. 11) is detected by the rear end detection unit 115, The guide control section 116 moves the retracting section 113a to the first position again. Thereby, the object to be fed out by the feeding section 110 shifts to the third wire rod.

In this way, by sequentially replacing drums that run out of wire in the feeding section 110 and passing the vicinity of the rear end of the wire being fed through the trailing edge detection section 114 or the trailing edge detection section 115, the wire to be processed can be replenished. It can be played continuously. Therefore, for example, wire processing can be performed continuously on a plurality of wires without stopping the operation of the wire processing section 130.

Further, in FIGS. 1 to 9, the situation in which the object to be accommodated by the accommodating section 150 shifts from the first wire rod 11 to the second wire rod 12 has been described. For example, in the state shown in FIGS. The first wire 11 may be removed from the first winding device 153 that has finished winding the wire 11.

By doing so, when the joint part (not shown) between the second wire rod 12 and the third wire rod is detected by the joint part detection part 120 and cut by the cutting part 140, the sorting part 152 is moved to the position shown in FIG. It is again displaced to the state shown, and the front end of the third wire is guided to the first winding device 153. As a result, the distribution section 152 enters a state in which the third wire rod is sent to the first winding device 153, and the third wire rod is wound up by the first winding device 153.

In this way, by sequentially removing the wire rods from the winding device after winding, it is possible to sequentially manufacture wire rods in which the joint portions are removed and the wire rods are wound into a coil shape.

(Configuration of movable guide 113)
8 and 9 are diagrams showing an example of the configuration of the movable guide 113. As shown in FIG. 8, the movable guide 113 includes a support column 810, a first arm 820, a hollow rotating body 830, and a second arm 840.

8 shows the movable guide 113 in the state shown in FIGS. 1 and 2, that is, the retracting portion 113a of the movable guide 113 is in the first position close to the central axis 801 of the winding of the first wire 11, and A first drum 111 is shown. Note that in FIG. 8, illustration of the second drum 112 is omitted.

The lower end of the support column 810 is fixed to the ground near the first drum 111 and the second drum 112. For example, the support section 810 is determined by the distance between the center axis 801 of the winding of the first wire 11 on the first drum 111 and the support section 810, and the distance between the winding of the second wire 12 on the second drum 112 (not shown). The distance between the central axis of the support column 810 and the support section 810 is fixed at the same position.

A base end of a first arm 820 is provided at the upper end of the column 810 so as to be rotatable with respect to the column 810 . The rotation axis 811 is a rotation axis when the first arm 820 rotates with respect to the support section 810, and is perpendicular to the ground.

The first arm 820 is provided so that its longitudinal direction is oblique to the rotation axis 811. Therefore, by rotating the first arm 820 about the rotation axis 811, the tip of the first arm 820 pivots about the rotation axis 811.

Although not shown, the movable guide 113 is provided with an actuator that rotates the first arm 820 about the rotation axis 811 under control from the guide control unit 116. Various types of actuators such as an air cylinder can be used as this actuator.

A hollow rotating body 830 is provided near the tip of the first arm 820 so as to face the first drum 111 . The hollow rotating body 830 is rotatably provided with respect to the first arm 820. The rotation axis 831 is a rotation axis when the hollow rotating body 830 rotates with respect to the first arm 820, and is perpendicular to the ground. Further, the hollow rotating body 830 has a hollow structure having a through hole penetrating in a direction parallel to the rotating shaft 831.

Further, the base end of a second arm 840 is fixed to the hollow rotating body 830. The second arm 840 is provided so that its longitudinal direction is oblique to the rotation axis 831. Therefore, since the hollow rotating body 830 is rotatable with respect to the first arm 820 around the rotation axis 831 as described above, the tip of the second arm 840 can be turned around the rotation axis 831. ing.

A ring 841 is provided near the tip of the second arm 840. Therefore, the ring 841 is rotatable about the rotation axis 831 together with the tip of the second arm 840.

The first wire 11 unwound from the first drum 111 passes through the ring 841 and the through hole of the hollow rotating body 830, and is fed out toward the wire processing section 130. In this case, the ring 841 constitutes the above-mentioned retracting portion 113a. That is, as the first wire 11 is unwound, the first wire 11 wound around the first drum 111 is drawn into the movable guide 113 from the ring 841.

Therefore, the first wire 11 is pulled toward the ring 841 (the lead-in portion 113a) located at the first position close to the central axis 801 of the winding of the first wire 11, so that the first The wire rod 11 can be unwound smoothly.

Furthermore, in the configuration shown in FIG. 8, the ring 841, which is the retracting portion 113a, is rotatable around the rotating shaft 831. Here, since the first wire rod 11 is wound around the first drum 111, the portion of the first wire rod 11 that is beginning to separate from the first drum 111 (portion 11a shown in FIG. 8) is As the first wire 11 is unwound from the first drum 111, it rotates about the central axis 801.

Also, due to the force that pulls the first wire 11 toward the wire processing unit 130, the ring 841 is moved away from the lower end of the hollow rotating body 830 and the portion of the first wire 11 that is about to separate from the first drum 111. (portion 11a shown in FIG. 8).

As a result, as shown in FIG. 9, the ring 841 pivots about the central axis 801 as the first wire 11 is unwound from the first drum 111. Thereby, the winding of the first wire 11 can be unwound more smoothly. Note that FIG. 9 shows a state in which the first wire 11 has been separated from the first drum 111 by about half a turn, and accordingly, the ring 841 has also turned by about a half turn.

Further, as described above, when the rear end detection unit 114 detects that the rear end of the first wire 11 wound around the first drum 111 is pulled in by the movable guide 113, the guide control unit 116 controls the actuator described above to move the first arm 820 relative to the support section 810 so that the hollow rotating body 830 is positioned on the central axis of the winding of the second wire 12 on the second drum 112. Rotate.

As a result, the position of the ring 841, which is the lead-in portion 113a, is at the second position near the central axis of the winding of the second wire 12 on the second drum 112, so that the winding of the second wire 12 is smoothed. can be solved.

Furthermore, as the second wire 12 is unwound from the second drum 112, the ring 841 pivots around the central axis of the winding of the second wire 12 on the second drum 112. This allows the second wire 12 to be unwound more smoothly.

Furthermore, by drawing in the wire to be processed while the ring 841 (drawing portion 113a) rotates, it is possible to reduce the twisting load on the wire to be processed when the wound wire to be processed is pulled out.

(Configuration of rear end detection units 114 and 115)
10 and 11 are diagrams showing an example of the configuration of the rear end detection section 114. The configuration of the rear end detection section 114 will be explained, but the configuration of the rear end detection section 115 is also similar to the configuration of the rear end detection section 114.

In the example shown in FIGS. 10 and 11, the rear end detection section 114 is a limit switch including a stand section 1010 and a lever 1020. The stand section 1010 is a U-shaped member fixed to the ground. The lever 1020 is provided inside the U-shape of the stand section 1010.

For example, in the state shown in FIG. 1, as shown in FIG. will be placed in In the example shown in FIG. 10, the joint P1 is arranged on the opposite side of the stand section 1010 from the first drum 111; It may be placed in between.

In the state shown in FIG. 2, the rear end of the first wire 11 is pulled up by the movable guide 113, as shown in FIG. passes out above the stand portion 1010.

Furthermore, when the lever 1020 is lifted, the rear end detection unit 114 controls the guide control to send a detection signal indicating that the movable guide 113 has detected the retraction of the rear end of the first wire 11 wound around the first drum 111. It outputs to section 116. From this, the guide control section 116 displaces the retracting section 113a of the movable guide 113 to the second position, resulting in the state shown in FIG. 3.

As shown in FIGS. 10 and 11, the rear end detection unit 114 is a limit switch that detects displacement of the rear end of the first wire 11 toward the movable guide 113 (above FIGS. 10 and 11). It can be configured by Similarly, the rear end detection unit 115 can be configured by a limit switch that detects displacement of the rear end of the second wire 12 toward the movable guide 113.

According to the wire processing system 100 described above, passage of the wire rod joint P1 in the unwound wire to be processed is detected, and based on the detection result, the wire to be processed is transferred between the wire processing section 130 and the storage section 150. By cutting the wire, the joint P1 in the wire to be processed can be removed.

Thereby, the joint P1 can be automatically removed from the wire to be processed without requiring the operator to monitor the position of the joint P1 and operate the cutting device. Therefore, it is possible to reduce the time required for the worker to be restrained. Further, since the wire to be processed is automatically cut based on the detection result of the passage of the joint P1 without depending on an operator's operation, only the joint P1 can be accurately removed from the wire to be processed.

Further, according to the wire processing system 100, passage of the joint portion P1 can be detected between the feeding section 110 of the wire to be processed and the wire processing section 130. Thereby, even if the characteristics of the joint P1 disappear or attenuate due to wire treatment, the joint can be reliably detected.

Further, according to the wire processing system 100, before the drawing of the rear end of the first wire 11 in the wire to be processed is detected, the position of the drawing part 113a of the movable guide 113 is adjusted to the position of the winding of the first wire 11. After setting the drawing part 113a to the first position close to the central axis and detecting the drawing of the rear end of the first wire 11, change the position of the drawing part 113a to the second position near the central axis of the winding of the second wire 12. It can be done. Thereby, the first wire rod 11 and the second wire rod 12 can be unwound smoothly, and the first wire rod 11 and the second wire rod 12 can be efficiently fed out.

Further, according to the wire processing system 100, in the subsequent stage of the cutting section 140, the wire to be processed is moved to the first winding device 153 and the second winding device 154 according to the timing at which the cutting section 140 cuts the wire to be processed. By distributing the wire rods, the first wire rod 11 can be sent to the first winding device 153 and the second wire rod 12 can be sent to the second winding device 154. Thereby, the first wire rod 11 and the second wire rod 12 that have been joined by welding or the like can be separated and housed again.

As described above, according to the wire processing system 100, the position of the lead-in part 113a is controlled for efficient feeding of the wire to be processed, the joint part P1 of the wire to be processed is cut and removed after the wire is processed, and the Sorting of wire rods to be processed can be performed automatically (without operator intervention).

Therefore, it is possible to reduce the amount of work performed by the operator and the time required for the operator to be restrained, and to efficiently perform wire rod processing on a plurality of wire rods.

Further, it is possible to suppress troubles such as damage to the movable guide 113 and the like and emergency stoppage of the wire processing system 100 due to delays in operations by the operator or failure of the operator to see the joint P1.

Furthermore, compared to the case where the wire to be processed is cut by an operator's operation, the joint portion P1 can be cut and removed from the wire to be processed with high accuracy. That is, for example, it is possible to shorten the portion of the waste wire D1 shown in FIG. 1 that is not the joint P1, and it is possible to reduce the amount of wire that is discarded even though it has not been altered by welding or the like.

(Modified example of wire processing system 100)
In order to detect the joint P1 of the wire material to be processed in the joint detecting section 120, a method has been described in which the joint P1 is previously coated with a specific color of paint using a color spray or the like. Not limited to.

For example, if optically determinable characteristics (for example, color and shape of welding marks, etc.) appear at the joint P1 of the wire rods due to welding of wire rods, it is not necessary to apply paint to the joint P1. , the passing of the joint P1 can be detected by detecting its characteristics with the optical sensor 121.

Alternatively, if a shape characteristic (for example, a bulge) appears in the joint P1 of the wire rods due to welding of the wire rods, the optical sensor 121 may be used to detect the characteristic without applying paint to the joint P1. By providing a detectable contact-type limit switch, passage of the joint P1 can be detected.

Alternatively, the passage of the joint P1 can be detected by attaching a sensing feature such as magnetism or odor to the joint P1 of the wire to be processed, and providing a sensor for sensing the characteristic in the joint detecting section 120. You may.

In addition, although a configuration has been described in which the joint detection unit 120 detects passage of the joint P1 between the feeding unit 110 and the wire processing unit 130, that is, at a stage before the wire processing unit 130, the present invention is not limited to such a configuration. .

For example, if the characteristic parts such as the shape and color for detecting the joint P1 do not disappear due to the wire processing in the wire processing section 130, the joint detection section 120 will The structure may be such that the passage of the joint portion P1 is detected between the two.

Further, in FIGS. 1 to 7, heat treatment has been described as the wire processing by the wire processing unit 130, but the wire processing by the wire processing unit 130 may be forming such as wire drawing as described above, A combination of heat treatment and molding may also be used.

Furthermore, although a configuration has been described in which the trailing edge detecting section 114 and the trailing edge detecting section 115 are provided corresponding to the first drum 111 and the second drum 112, respectively, one of the trailing edge detecting sections 114 and the trailing edge detecting section 115 is It is also possible to have a configuration in which . For example, a rear end detection unit 114 is provided between the first drum 111 and the second drum 112, and the displacement of the rear end of the first wire rod 11 and the subsequent displacement of the rear end of the second wire rod 12 are detected. , may be detected by the rear end detection unit 114.

In addition, although the configuration has been described in which the cutting control unit 142 outputs a notification signal indicating that the wire to be processed has been cut to the storage unit 150, and the storage unit 150 distributes the wire to be processed based on the notification signal, this It is not limited to such a configuration. For example, the storage unit 150 identifies the timing at which the joint P1 reaches the cutting unit 140 based on the above-mentioned detection signal output from the optical sensor 121, and sorts the wires to be processed based on the identified timing. It's okay.

As described above, the wire processing system disclosed in this specification includes a feeding section that feeds out a wire to be processed formed by joining a plurality of wire rods, and a wire to be processed that is fed out by the feeding section. , a wire processing unit that performs wire processing including at least one of heat treatment and shaping; a housing unit that accommodates the wire to be processed that has been subjected to the wire processing by the wire processing unit; A joint detection unit detects passage of the joint of the wire in the wire to be processed, and a joint detection unit detects the passage of the joint between the wire processing unit and the storage unit, The method further includes a cutting section that removes the bonded portion of the wire to be processed by cutting the wire to be processed.

Further, in the wire processing system disclosed in this specification, the joint detection section detects passage of the joint between the feeding section and the wire processing section.

Further, in the wire processing system disclosed in this specification, the drawing portion is located at a first position closer to the central axis of the winding of the first wire rod than the central axis of the winding of the second wire rod; a movable guide that can be displaced to a second position closer to the central axis of the winding of the second wire rod than the central axis of the winding of the first wire rod; A trailing end detection unit detects the pulling, and before the trailing end detecting unit detects the pulling of the trailing end of the first wire, the position of the pulling part is set to the first position, and the trailing end is detected. and a guide control section that changes the position of the retracting section to the second position after the retracting of the rear end of the first wire is detected by the retracting section.

Further, the wire processing system disclosed in this specification is a limit switch in which the rear end detection section detects displacement of the rear end of the first wire toward the drawing section.

Further, in the wire processing system disclosed in this specification, the wire to be processed includes a first wire and a second wire whose front end is joined to a terminal end of the first wire, and The section cuts the wire to be processed into the first wire and the second wire, and the accommodating section cuts the wire to be processed into a first wire and a first wire for winding the first wire among the wire to be processed. a winding device, a second winding device for winding up the second wire of the wire to be processed, and a second winding device for winding up the second wire of the wire to be processed; and a second winding device for winding the second wire of the wire to be processed; and distributes the wire to be processed to the first winding device and the second winding device, thereby sending the first wire to the first winding device and sending the second wire to the first winding device. and a distribution section that sends the data to the second winding device.

Further, in the wire processing system disclosed in this specification, the wire to be processed fed out by the feeding section is sent to the cutting section at a constant speed, and the cutting section is connected to the bonded wire by the bonding section detecting section. The wire rod to be processed is cut at a timing when a certain period of time has elapsed from the timing when passage of the part is detected.

Further, in the wire processing system disclosed in this specification, the cutting section cuts a portion of the wire to be processed immediately before the joint portion and a portion immediately after the joint portion.

Further, in the wire processing system disclosed in this specification, the cutting section cuts the processed wire while moving in the same direction as the moving direction of the processed wire.

Further, in the wire processing system disclosed in this specification, the joint portion is given a specific color, and the joint portion detection unit is an optical sensor that optically detects the specific color.

Further, the wire processing method disclosed in this specification involves feeding out a wire to be processed formed by joining a plurality of wires, and performing at least heat treatment and shaping on the wire to be processed that is fed out by the feeding section. A wire processing unit performs wire processing including the above, the processed wire is stored in a storage unit, and passage of the wire to be processed, which is fed out by the feeding unit, passes through a bonding part. , the bonded portion of the processed wire is removed by cutting the processed wire between the wire processing section and the storage section based on a detection result of passage of the bonded portion.

11 First wire 12 Second wire 11 First wire 12 Second wire 100 Wire processing system 110, 113b Output section 111 First drum 112 Second drum 113 Movable guide 113a Retracting section 114, 115 Rear end Detection section 116 Guide control section 120 Joint detection section 121 Optical sensor 130 Wire treatment section 131 Heat treatment device 140 Cutting section 141 Cutter 142 Cutting control section 150 Accommodation section 151 Guide 152 Sorting section 153, 154 Picking device 801 Center shaft 810 Support section 811 , 831 Rotating shaft 820 First arm 830 Hollow rotating body 840 Second arm 841 Ring 1010 Stand part 1020 Lever P1 Joint part D1 Waste wire material

Claims (2)

a feeding section that feeds out a wire to be processed formed by joining a plurality of wires;
a wire processing unit that performs wire processing including at least one of heat treatment and shaping on the wire to be processed fed out by the feeding unit;
an accommodating section that accommodates the wire to be processed that has been subjected to the wire processing by the wire processing section;
a joint detection unit that detects passage of a joint of the wire rod in the wire to be processed fed out by the feeding unit;
The joint part in the wire material to be processed is removed between the wire processing part and the housing part by cutting the wire material to be processed based on the detection result of the passage of the joint part by the joint part detection part. a cutting section to
A wire processing system comprising:
The wire to be processed includes a first wire and a second wire whose front end is joined to the terminal end of the first wire,
The feeding section is
a first drum around which the first wire of the wire to be processed is wound;
a second drum around which the second wire of the wire to be processed is wound;
A movable guide having a drawing part for drawing the wire to be processed wound around the first drum and the second drum, and for feeding out the wire to be processed drawn by the drawing part, the drawing part including: a first position closer to the central axis of the winding of the first wire rod than the central axis of the winding of the second wire rod; and a position of the winding of the second wire rod that is closer to the central axis of the winding of the second wire rod a second position close to the central axis, and a movable guide movable to
a rear end detection unit that detects retraction of the rear end of the first wire by the movable guide;
Before the rear end detecting section detects the retraction of the rear end of the first wire, the position of the retracting section is set to the first position, and the rear end detecting section detects the rear end of the first wire. a guide control unit that sets the position of the retracting portion to the second position after the retraction of the retractor is detected;
A wire processing system equipped with The wire processing system according to claim 1,
In the wire processing system, the rear end detection section is a limit switch that detects displacement of the rear end of the first wire toward the drawing section.

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