JPH0326487B2 - - Google Patents

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention cuts a covered wire to a predetermined size, and performs terminal processing such as stripping the cut wire and terminal crimping on the end of the cut wire in a fully automatic manner. The present invention relates to an improvement of a wire changing device in a wire manufacturing machine.

(Prior Art) Conventionally, a length measuring feeding device and a cutting device are arranged in the wire feeding direction from a wire supply source, and a plurality of sets are arranged at equal intervals in a direction perpendicular to the feeding direction from downstream of the cutting device in the feeding direction. There was an electric wire manufacturing machine that was equipped with an electric wire transfer device in which disposed clamping claws were driven intermittently in circulation for each pitch, and various coating stripping devices, terminal crimping devices, etc. were arranged along the transfer path of the transfer device. .

(Problems to be Solved by the Invention) This type of wire manufacturing machine uses various coating stripping devices and terminal crimping devices depending on the type of processing to be performed on the end of each cut wire when the wire transfer device is stopped intermittently. Can be selectively activated. However, since the wire supply source is generally equipped with only one type of wire supply reel, if the wire on the supply reel runs out or if you want to process a different type of wire, stop the operation of the wire making machine temporarily. The process had to be interrupted to replace the supply reel, resulting in a reduction in processing capacity.

The present invention has been made in view of the above-mentioned circumstances, and enables continuous and automatic replacement of the wires to be treated.
The present invention aims to provide a wire changing device for a wire manufacturing machine.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention includes a length measurement feeding device that feeds the length of the electric wire, and a length measurement feeding device that feeds the length of the electric wire. The present invention is based on an electric wire manufacturing machine equipped with a cutting device that cuts electric wires to a predetermined size.

A plurality of electric wire supply reels arranged in parallel with each other and each having an electric wire wound thereon, and a plurality of electric wires supplied from the electric wire supply reels that guide the electric wire in the direction of the electric wire feeding axis to receive and releasably grip the electric wire. and a wire guide tube unit. Furthermore, a movable body is provided to be movable in a horizontal direction perpendicular to the wire feeding axis, and a plurality of movable bodies are provided along the moving direction of the movable body and releasably grip each of the wire guide tube units. a driving means for moving the movable body so as to selectively position one of the wire guide tube units gripped by the gripping tools at a predetermined delivery position; A wire guide tube unit selection/delivery device is provided, comprising a grip action release device for releasing the grip of the gripping tool on the wire guide tube unit when the wire guide tube unit is positioned at the delivery position. Furthermore, the wire guide tube unit in the released state, which has been moved to a predetermined delivery position by the guide tube unit selection/delivery device, is received from the gripping tool directly or indirectly via an appropriate relay means, and A guide tube unit receiving and arranging device is provided for moving the guide tube unit downstream in the feed axis direction and arranging it at a predetermined position with respect to the length measuring and feeding device.

(Function) As a result, in the present invention, the electric wires from the plurality of electric wire supply reels are guided to the respective electric wire guide tube units, and these guide tube units are held by the respective gripping tools of the guide tube unit selection/delivery device. ing. After the desired wire guide tube unit is selectively positioned at a predetermined delivery position, the grip by the above-mentioned gripping tool is released, and then the wire guide tube unit is handed over to the guide tube unit receiving and arranging device, and the wire is replaced. can be performed continuously and automatically.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. For convenience of explanation, the left and right in Figures 1 and 2 are respectively referred to as "left" and "right", and the upper and lower parts of the paper are respectively referred to as "rear" and "front", or "upstream in the feeding direction" and "feeding direction". It is called ``downstream in the feeding direction''.

FIG. 1 shows the overall schematic configuration of an electric wire manufacturing machine. As shown in Fig. 1, the wire manufacturing machine mainly consists of a wire supply section A and a wire exchange/length measurement/cutting section B.
, a wire U-turn forming part C, a wire transfer part D,
It consists of five components including the wire end processing section E.

As shown in FIG. 1, the electric wire supply section A includes three electric wire supply reels 1a, 1b, and 1c arranged side by side on the left and right, wound with different types of electric wires Wa, Wb, and Wc, respectively. Each electric wire supply reel 1a, 1
Electric wires Wa, Wb, which come out from b, 1c forward in the feeding direction,
Wc are guide rollers 2a, 2b, 2c, respectively
The wire is then passed through the wire drawing roller groups 3a, 3b, 3c, and fed into the slack forming sections 5a, 5b, 5c by the continuous rotation of a set of two pre-feed rollers 4a, 4b, 4c. Guide rollers 6a, 6
After passing through steps b and 6c, it heads to the next stage, wire exchange, length measurement, feeding, and cutting processing section B.

The processing section B includes a base 7, as shown in FIG.
A guide tube unit is provided in the left-right direction at the center of the upper surface, and is provided so that the three electric wire guide tube units 8a, 8b, and 8c that guide and hold the electric wires Wa, Wb, and Wc can be moved in the left-right direction and released. A selection/delivery device 9, a length measuring/feeding device 10 and a cutting device 11 sequentially provided in front of the selection/delivery device 9, and receiving desired guide tube units 8a to 8c from the selection/delivery device 9; It comprises a guide tube unit receiving and arranging device 12 for arranging the guide tube unit at a predetermined position of the length measuring and feeding device 10 and cutting device 11. The electric wire exchange device of the present invention includes the electric wire supply reels 1a to 1c.
, wire guide tube units 8a to 8c, a guide tube unit selection/delivery device 9, and a guide tube unit receiving/arranging device 12.

Of these, the guide tube unit selection/delivery device 9 is connected to pillars 13a, 13 which are erected on the upper surface of the base 7 and spaced apart from each other to the left and right, as shown in FIGS. 2 and 3.
A beam 14 having a U-shaped cross section with an open top surface is horizontally suspended between the upper ends of
A threaded rod 16 constituting a ball screw mechanism is mounted horizontally on the left and right between the pair of bearings 15a and 15b.
A left-right moving body 17 is provided on the threaded rod 16 and is movable in the left-right direction by rotation of the threaded rod 16 by screwing a ball nut (not shown) onto the threaded rod 16. Further, the rightward extension of the threaded rod 16 is connected to the beam 1.
4 is connected to the output shaft (not shown) of a reversible motor 18 with a reducer and brake installed at the upper right end of the
The left extension part is connected to an encoder 19 installed at the upper left end of the beam 14, and is connected to the encoder 19 installed at the upper left end of the beam 14.
As will be described later, the desired wire guide tube units 8a to 8c held by the gripping tools 24a to 24c are moved to a predetermined delivery position (a position where the units 8a to 8c coincide with the feeding axis H). is configured.

In FIG. 1, reference numeral 20 denotes a vertical support plate having a horizontally elongated rectangular shape in the left-right direction and whose central portion is fixed to the front extension of the left-right moving body 17. As shown in FIGS. 2 and 3, the support plate 20 includes a pair of guide rollers 21 and 22 pivotally supported on the left and right sides of the rear surface, and a guide rail installed in the left-right direction on the front surface of the beam 14. 23 so as to move in the left-right direction integrally with the left-right moving body 17.

In addition, in FIG. 1, 24a, 24b, 24c
are left, middle, and right gripping tools attached to the front surface of the support plate 20 at equal intervals on the left and right, so as to grip the wire guide tube units 8a, 8b, and 8c, respectively.
They have the same configuration as below.

That is, each of the gripping tools 24a to 24c, as shown in FIGS. 2 and 3 and detailed in FIG.
A hook-shaped member 26 having an upper horizontal portion 26a fixed to the front surface of a mounting plate 25 attached to the front surface of the support plate 20.
, a vertical rectangular grip plate 27 attached to the lower left side surface of the hook-shaped member 26 , and the hook-shaped member 26
The horizontal plate 28 is provided to protrude leftward from the middle part of the horizontal plate 28. A flanged actuation rod 29 is loosely inserted into through holes 28a and 26a1 vertically bored in the center of the horizontal plate 28 and the upper horizontal portion _26a of the hook-shaped member 26. A coil spring 30 is wound around the actuating rod 29 between a flange 29a formed at the intermediate portion and the upper surface of the horizontal plate 28, and the spring force of the coil spring 30 normally urges the actuating rod 29 upward. By doing so, the upper part of the actuating rod 29 is made to protrude upward from the through hole _26a1 . Furthermore, the horizontal plate 28
A swinging arm 31 is pivotally supported at an intermediate bent portion of a bracket 32 vertically disposed on the left lower surface of the swinging arm 31, and is swingable in a vertical plane in the left-right direction about the pivot point. A pin 33 protruding forward from the downwardly protruding end of the actuating rod 29 is loosely inserted into a long hole 31a bored on the short side of the swing arm 31, and the lower end of the long side is inserted toward the right side. It is slightly bent to form a claw 31b.

In FIG. 1, reference numeral 34 denotes a grip release device provided at a predetermined position approximately in the middle of the beam 14. As shown in FIG. 5, the release device 34 includes a bracket 35 whose lower end is fixed to the rear surface of the beam 14, extends vertically upward, and then is bent horizontally forward from a position above the left-right moving body 17; an air cylinder 34a fixed to the lower front surface of the air cylinder 3;
A pushing piece 34c is fixedly attached to the lower end of the rod 34b extending vertically downward from the rod 4a. In normal operation, the pushing piece 34c is moved by the contraction operation of the rod 34b.
is held in the upper position shown by the two-dot chain line in FIG. 5 to allow each of the gripping tools 24a to 24c to pass through, and when the desired gripping tool 24a to 24c reaches the predetermined position, it is pushed by the extension operation of the rod 34b. The piece 34c is lowered, and in the middle of this descent, the pushing piece 34c touches the actuating rod 29.
The operating rod 29 is pushed down against the upper end surface and against the spring force of the coil spring 30, thereby rotating the swinging arm 31 clockwise in FIG. The grip is released.

Next, the wire guide tube units 8a to 8c will be explained with particular reference to FIG. 4. As shown in FIG. 4, each of the wire guide tube units 8a to 8c has rectangular front and rear blocks 36 spaced apart from each other.
37 are connected by a pair of connecting rods 38 at the upper left and right sides, and the front and rear blocks 36 and 37 have front and rear guide tubes 39, which are slightly spaced apart from each other in the front and rear directions along a common longitudinal central axis M. 40 is supported through the rear guide tube 40, and the rear end portion of the rear guide tube 40 is formed to gradually expand rearward. Further, the rear block 37 has a rectangular reduced part 37a formed in the center thereof, and a vertical groove _37c1 having a trapezoidal cross section that penetrates in the vertical direction is cut in the center of the left side of the rear enlarged part 37c. A tapered rectangular hole 37c ₂ and a round hole 37c ₃ are bored in the front left side and rear right side of the portion 37c, respectively. Further, a wire gripping mechanism 41 is provided in association with the front enlarged portion 37b of the rear block 37. As shown in FIGS. 2 and 3, the electric wire gripping mechanism 41 includes a vertical driven plate 42 and a horizontally protruding portion above and below the left side of the driven plate 42, and extends from the front enlarged portion 3.
A pair of round bars 43 are loosely inserted into through holes _37b1 drilled above and below 7b, and a vertical support plate 44 is bolted to the left protrusion of the round bars 43. There is. A horizontal pressing plate 45 with an arched tip is protruded from the center of the right side of the support plate 44, and the pressing plate 45 is on the left side of the front enlarged portion 37b and the rear guide tube 40. It enters into a rectangular hole _37b2 bored in the surface and can freely move in and out of the rear guide tube 40. The driven plate 42 and the front enlarged part 3
A coil spring 41a is wound around each round bar 43 between the round bar 7b and the driven plate 42, the round bar 43, the support plate 44, etc., to the right at all times. The arcuate tip surface abuts the electric wire Wa etc. inserted through the rear guide tube 40, and presses the electric wire against the right wall of the rear guide tube 40 to securely hold the electric wire.

Therefore, the wire guide tube units 8a to 8c
are the left, middle, and right grips 2 when not in use, respectively.
4a, 24b, and 24c. For example, in FIG.
As shown in FIG. b, the entire left side surface of the grip plate 27 comes into contact with the right side surface of the rear expanding portion 37c, and the swing arm 31 is biased counterclockwise by the spring force of the coil spring 30, and the claw 31b is fitted into the rectangular hole _37c2 to hold the entire guide tube unit 8b horizontally in the front-rear direction.

In FIG. 1, reference numeral 46 denotes an elevating clamp body as a relay means disposed in front of the grip action release device 34, and is used to connect each electric wire between each grip tool 24a to 24c and the guide tube receiving/arranging device 12. It serves to transfer the guide tube units 8a to 8c, and has the following configuration. That is, as shown in FIGS. 2 and 3, the bracket 35 is provided with a hollow prism 47 extending vertically upward and whose lower end rear surface is fixed to the upper end of the front end vertical portion 35a.
Reversible motor 48 with reducer and brake at the upper end of 7
A threaded rod 49 extending vertically downward within the prism 47 is connected to the downward output shaft of the motor 48. A ball nut 50a fixed to the upper end of a hollow elevating column 50 is screwed onto the threaded rod 49, and two anti-rotation protrusions 51 protruding from the left and right outer surfaces of the elevating column 50 are connected to a square column. It engages with guide grooves 52 formed in the vertical direction on the left and right inner surfaces of the prism 47 to enable it to move up and down within the prism 47. A box body 53 is fixed to the lower end of the lifting column 50. A pair of sector gears 54a, 54b are pivotally supported in the lower part of the box body 53, spaced apart from each other on the left and right sides.
An actuating rod 55 with racks carved on both left and right sides of the lower part is interposed between the actuating rods 4b in an engaged state, and the upper part of the actuating rod 55 is connected to the front surface of a sliding plate 57 that moves up and down along a pair of left and right guide members 56. Fixed. A box body 53 is provided on the outer periphery of the sector gears 54a and 54b.
A pair of opening/closing arms 5 extending downward from the lower opening of the
8a, 58b are protrudingly provided, and the opening/closing arms 58a,
Grip plates 59a and 59b with only upper and lower edges protruding are attached to the lower facing surface of 58b.
On the other hand, a solenoid 60 is fixedly installed in the upper part of the inside of the box 53, and a rod 6 extending downward from the solenoid 60 is attached.
The tip 0a is pivotally connected to the upper part of the sliding plate 57. Further, a tension spring 61 is stretched between the upper portions of the sector gears 54a and 54b. Therefore, the opening/closing arms 58a, 58b are normally opened by the spring force of the tension spring 61 due to the demagnetization of the solenoid 60, and when the rod 60a is retracted by the excitation of the solenoid 60 at an appropriate time, they approach in opposite directions. The surfaces of the gripping tools 59a, 59b are adapted to fit on both the left and right sides of the rectangular reduced portion 37a of any one of the wire guide tube units 8a to 8c, so that the guide tube unit can be gripped horizontally in the front and rear directions.

Next, the guide tube unit receiving/arranging device 1
2 will be explained with reference to FIGS. 2 and 3.

In FIGS. 2 and 3, 61 is the base 7.
A sliding body 62 is fitted into the fixed base 61 so as to be slidable in the front and back directions, and a pair of mounts are mounted on the sliding body 62 in the front and back. 63a, 63b are erected, and a movable cylinder 64 is fixedly installed between both frames 63a, 63b. I have it inserted. Furthermore, a pair of flanges 66a and 66b are fixedly provided at the rear of the movable cylinder 64 and are slightly spaced apart from each other in the front and rear.
Further, in front of the flange 66a is a movable cylinder 64.
Two cam plates 67, 6 are rotated freely against each other.
8 is installed. Both cam plates 67, 68
A support arm member 6 extending to the left is attached to the movable cylinder 64 in between.
9 is fixed, and the rear enlarged portion 3 of each wire guide tube unit 8a to 8c is fixed to the left end surface of the support arm member 69 below the lifting clamp body 46.
A concave member 70 is fixedly provided for receiving the groove 7c, and the vertical groove 3 is formed on the left inner surface of the concave portion of the concave member 70.
A protrusion 70a having a trapezoidal cross section and capable of fitting into 7c ₁ is formed protrudingly in the upper and lower sectional views.

In addition, in FIGS. 2 and 3, 71 is a gripping release mechanism for the wire gripping mechanism 41,
It is provided on the front side surface 69a of the support arm member 69 in relation to the cam plate 68, and has the following configuration. That is, a sliding body 73 is provided so as to be slidable in the left-right direction along a pair of upper and lower guide members 72 fixed to the right side of the front side surface 69a. A driven roller 74 extends and is located at the right end.
A pushing plate 75 is fixedly supported, and the pushing plate 75 is
The left end thereof is bent forward to form a pushing portion 75a. Further, a coil is disposed between the bent protrusion 76 fixed to the right front surface of the pushing plate 75 and the protrusion fixed to a bracket 77 fixed to the front side surface 69a on the left side of the protrusion 76. A spring 79 is attached to constantly bias the pushing plate 75, sliding body 73, and driven roller 74 integrally to the right. and,
The driven roller 74 is normally attached to the protrusion 6 of the cam plate 68.
The pushing part 75a engages with the outer peripheral end surface that has come off from the part 8a.
is held in the right retracted position so that even if the wire guide tube units 8a to 8c descend toward the concave member 70, the driven plate 42 does not collide with the pushing portion 75a.

Further, in FIG. 2, reference numeral 80 denotes a positioning and fixing mechanism for the wire guide tube units 8a to 8c, which is provided on the rear side surface 69b of the support arm member 69 in relation to the cam plate 67. That is, the rear side surface 69
A pair of guide members 82 fixedly installed on the left and right sides of b
A positioning rod 81 is inserted through a and 82b so as to be movable in the left-right direction, and a tapered part 81a is formed at the left end of the positioning rod 81, and a flange part 81b is formed in the middle part, and the flange part 81b and the guide member A coil spring 83 is wound between the positioning rod 82a and biasing the positioning rod 81 to the left. The positioning rod 81
A driven roller 84 is pivotally supported on the right end of the cam plate 67, and the driven roller 84 is normally located in the recess 6 on the outer peripheral end surface of the cam plate 67.
7a to hold the positioning rod 81 in the right retracted position, and when the rear enlarged portions 37c of the wire guide tube units 8a to 8c are attached to the concave member 70, the driven roller 84 moves to the convex portion 67b. The positioning rod 81 is moved to the left by engaging with the tapered part 81.
A is inserted into the round hole _37c3 to position and fix the guide tube units 8a to 8c. In FIG. 2, reference numeral 85 denotes a swing arm whose lower part is linked to a cam operating mechanism (not shown), and a push roller 86 pivotally supported at the tip of the swing arm 85 is connected to the flanges 66a, 6.
The swing arm 85 is rotatably interposed between the swing arms 85 and 6b.
By swinging back and forth, the frames 63a, 63b, movable cylinder 64, cam plates 67, 68, support arm members, etc. are integrally moved in the front and back direction. Also,
Reference numerals 87 and 88 indicate operating arms whose lower portions are linked to a cam operating mechanism (not shown), whose upper ends are pivotally connected to the right outer peripheries of the cam plates 67 and 68, respectively, by universal joints. The cam plates 67 and 68 are rotationally driven by vertical swinging, thereby operating the positioning and fixing mechanism 80 and the gripping action release mechanism 71, respectively.

Next, the length measurement feeding device 10 and the cutting device 11
I will explain about it. As shown in FIG. 2, the length measuring and feeding device 10 has a pair of vertical rotation shafts 10a on the left and right, with a predetermined feeding axis H extending horizontally in the front and rear below the lifting clamp body 46; 10a is supported on the base 7, and each of the vertical rotation shafts 10a,
A pair of opening/closing arms 10b, 10b whose bases are rotatably pivotally connected to 10a are provided, and a pair of length measuring feed rollers 1 is provided at the tip of each opening/closing arm 10b, 10b.
0c and 10c are pivotally supported. Both rotating shafts 10a, 10a are connected by coaxially fixed gears (not shown) that mesh with each other, and transmission belt mechanisms 10d, 10d.
The rotation of a is caused by the length measurement feeding rollers 10c, 10c.
A length measuring device (not shown) including an encoder is connected to one rotating shaft 10a so as to transmit the information.

Further, as shown in FIG. 2, the cutting device 11 has left and right cutter heads 11a and 11b which are disposed opposite to each other with the feeding axis H as a boundary in front of the length measuring and feeding device 10 and are movable in opposite directions. A pair of core wire cutting blades 11a 1 and 11b 1 are attached to the center of each of the cutter heads _11a and _11b facing each other, and the power transmission line is cut to a predetermined size by the closing operation of the cutter heads 11a and 11b. It's getting used to me.

In FIG. 1, the electric wire U-turn forming portion C
A front convex semicircular U-turn guide plate 89 is arranged so that the feed axis H passes through the right side in front of the cutting device 11, and a peripheral end surface of the U-turn guide plate 89 is provided. a U-turn roller assembly 90 that can rotate approximately 180 degrees along the U-turn guide plate 89 and move back and forth; and left and right lifting clamps 91a and 91 that can be moved up and down at positions slightly behind the left and right edges of the U-turn guide plate 89.
It consists of b. Then, the electric wire fed from one of the wire guide tube units 8a to 8c by the length measurement feeding device 10 is made to turn in a U-turn by the cooperation of the U-turn guide plate 89 and the U-turn roller assembly 90, and the electric wire is turned. The left and right lifting clamps 91a and 91b are held in a loop shape and cut into a predetermined size by the cutting device 11, and then the left and right lifting clamps 91 are held in a loop shape.
a and 91b descend to deliver the loop-shaped cut wire to the wire transfer section D described below.

Further, as shown in FIG. 1, the wire transfer section D includes a transfer conveyor 92 that starts slightly to the right of the feed axis H, passes below the U-turn guide plate 89, and ends at a leftward extension point. The transfer conveyor 92
is composed of a plurality of sets of clamping claws 94 attached at equal intervals to an endless chain 93 that is wound between a pair of left and right sprockets (not shown), and a chain sprocket mechanism ( (not shown)
The endless chain 93 is intermittently circulated in one direction by a clutch and a motor (not shown) equipped with a speed reducer. Each of the gripping claws 94 is appropriately closed by a solenoid mechanism below the U-turn guide plate 89, and opened by the operation of a fixed cam at the end of the transfer.

Furthermore, as shown in FIG. 1, the wire end processing section D sequentially installs three coating stripping devices 95a and 95b along the rear side of the transfer conveyor 92 corresponding to the stopping positions of the respective clamping claws 94. , 95c and one terminal crimping device 96 are provided. The coating stripping devices 95a, 95b, and 95c include movable tables 95a ₁ , 95b ₁ , and 95c ₁ that move back and forth, respectively, and a pair of coating stripping blades 95a ₂ that open and close oppositely in the left-right direction on each movable platform. , 95b ₂ and 95c ₂ , and the approach distance of each coating stripping blade is adjusted according to the core wire diameter of the electric wires Wa, Wb, and Wc, respectively, and the coating stripping length is determined by the moving distance of each moving table. It is now possible to set it by adjusting.

In FIG. 1, reference numeral 97 is a storage box installed at the left end of the conveyor 92 for receiving the finished product of the cut wire. Reference numeral 98 is a control device with a built-in microcomputer, which comprehensively controls the entire wire manufacturing equipment, and is equipped with a power switch, an emergency stop button, an alarm, etc. Reference numeral 99 denotes an operation console derived from the control device 98, which consists of an operation section 99a and a display section 99b. The operation section 99a includes a manual/automatic changeover switch, a group of manual switches, a numeric keypad, a start switch, and a wire type selection switch (i.e., supply reel 1
It is equipped with a terminal processing selection switch (i.e., selection of only stripping the insulation or crimping of the terminal), etc., and selects the type of wire to be manufactured. , the length of the wire to be cut, the type of wire terminal treatment, the number of wires, etc.
It has the ability to edit and create programs for lots. Further, the display section 99b sequentially displays the contents of the program during the above-mentioned editing work, and displays the processing status of electric wires, the set number of wires, the number of remaining wires to be processed, the completion of processing of a predetermined number of wires, etc. during automatic operation.

Next, the operation of the electric wire manufacturing machine as a whole will be explained.
First, the aforementioned editing work is performed using the console 99 shown in FIG. For example, assume that the number of wires and the type of terminal treatment for each cutting length are edited for electric wire Wa, and then the same is edited for electric wire Wc, so that electric wires Wa and Wc are processed successively.

The initial state of the wire manufacturing machine is as follows. That is, the wire guide tube units 8a, 8b, and 8c, which guide and hold the wires Wa, Wb, and Wc, respectively, are held by the left, middle, and right gripping tools 24a, 24b, and 24c, respectively, and the left and right moving body 17 guides and holds the wire guide tube units 8a, 8b, and 8c, respectively. It stops at a position where the central axis M of 8a is located directly above the feeding axis H. At this time, air cylinder 3
4a contracts the rod 34b and holds the pushing piece 34c directly above the operating rod 29 of the left gripping tool 24a. Further, the lifting clamp body 46 holds the box body 53 at the highest position above the height positions of the guide tube units 8a to 8c, and the opening/closing arm 58
a and 58b are open. When the guide tube unit receiving and placing device 12 is in its most retracted position, the concave member 70 is located directly below the rear enlarged portion 37c of the guide tube unit 8a. The driven roller 74 is the cam plate 6
The driven roller 8
4 engages with the recess 67a of the cam plate 67 to move the positioning rod 81 back to the right. Further, the length measuring and feeding device 10 opens the length measuring and feeding rollers 10c, 10c and stops rotating. Cutting device 1
1 maintains the left and right cutter heads 11a, 11b in an open state. Left/right lifting clamp 91a,
91b opens above the U-turn guide plate 89, and the transfer conveyor 92 has two sets of clamping claws 94 on the left and
It opens below the right lifting/lowering clamps 91a, 91b and the U-turn guide plate 89 to stop driving.

From this point on, the operations are performed sequentially as follows.

(1) The control device 98 confirms based on the position information from the encoder 19 that the wire guide tube unit 8a holding the desired wire Wa is located directly above the feeding axis H.

(2) Next, the box 53 and the opening/closing arms 58a, 58b are lowered to the intermediate position by driving the motor 48.

(3) The opening/closing arms 58a, 58b are closed by the contraction operation of the rod 60a of the solenoid 60, and the gripping plates 59a, 59b grip the guide tube unit 8a by sandwiching the rectangular reduced portion 37a of the guide tube unit 8a from the left and right sides.

(4) The air cylinder 34a extends its rod 34b, and the pushing piece 34c pushes down the actuating rod 29, causing the swinging arm 31 to rotate clockwise in FIGS. 3 and 5. This causes the left gripper 24a to release the guide tube unit 8a.

(5) The motor 48 is driven again, and the box body 53, opening/closing arms 58a, 58b, and guide tube unit 8a
The electric wires Wa are lowered together and stopped when the rear enlarged portion 37c of the guide tube unit 8a is fitted into the concave member 70. At the time of this insertion, the protrusion 7
0a and the vertical groove _37c1 fit together.

(6) As the operating arm 87 is pulled down, the cam plate 67 rotates clockwise in FIG. 3. Therefore, the driven roller 84 touches the protrusion 67b of the cam plate 67.
In order to ride on the guide tube unit 8a, the positioning rod 81 moves to the left so that the tapered part 81a fits into the round hole _37c3 , and together with the fitting between the projection 70a and the vertical groove _37c1 , the guide tube unit 8a is fixed together. However, the central axis M of the guide tube unit 8a coincides with the feeding axis H.

(7) The opening/closing arms 58a and 58b open to release the guide tube unit 8a, and the box body 53
Then, the opening/closing arms 58a, 58b open to release the guide tube unit 8a, and the box body 53 and the opening/closing arms 58a, 58b return to their original highest positions.

(8) Due to the swinging of the swinging arm 85, the sliding body 62, frames 63a, 63b, support arm member 69, guide tube unit 8a, etc. move forward, and the front guide tube 39 reaches near the right edge of the U-turn guide plate 89. Stop at that point.

(9) Then, the length measuring feed rollers 10c and 10c close to pinch the electric wire Wa exposed between the front and rear guide tubes 39 and 40.

(10) The cam plate 68 is pushed up by the actuating arm 88.
rotates clockwise in FIG. Therefore, the driven roller 74 touches the protrusion 68a of the cam plate 68.
The pushing plate 75 moves to the left in order to ride on the ground, and at this time the pushing part 75a engages with the driven plate 42 and resists the coil spring 46 to push the driven plate 42, round bar 43, support plate 44, etc. The entire electric wire gripping mechanism 41 is moved to the left, and the tip of the pressing plate 45 comes out of the rear guide tube 40 to release the grip on the electric wire Wa. In this way, the state of processing section B is the second state.
This is as shown by the solid line in FIGS. 3 and 5.

(11) The U-turn roller assembly 90 moves slightly to the left, and the upper and lower plates 90a overlap the upper and lower sides of the U-turn guide plate 89, and the end surface of the guide plate 89, the upper and lower plates 90a, and the roller 90b are overlapped. A guide hole 90c penetrating in the front-rear direction is formed.

(12) The length measurement feeding rollers 10c, 10c rotate to feed the electric wire Wa by a predetermined preliminary feeding amount, and then stop once. As a result, the electric wire Wa from the front guide pipe 39
advances through the guide hole 90c.

(13) As the U-turn roller assembly 90 moves further to the left, the roller 90b presses the electric wire Wa against the peripheral end surface of the U-turn guide plate 89, and then the U-turn roller assembly 90 moves along the peripheral end surface. Turns approximately 180°. As a result, the electric wire Wa is formed into a semicircular shape, and the tip portion protrudes a predetermined length rearward from the left end edge of the U-turn guide plate 89.

(14) The left lifting clamp 91a is slightly lowered and the electric wire
Grasp the tip of Wa. The U-turn roller assembly 90 separates from the U-turn guide plate 89 and returns to its original position.

(15) The length measuring feed rollers 10c, 10c rotate again to feed the desired remaining amount of the electric wire Wa, and the electric wire Wa forms a large loop (double-dashed line in FIG. 1).

(16) The right lifting clamp 91b is slightly lowered and the wire
Grasp Wa.

(17) The length measurement feed rollers 10c and 10c open.

(11) The guide tube unit 8a, support arm member 69, etc. are integrally moved back to the original retracted position, and the tip of the front guide tube 39 is located slightly behind the core wire cutting blades 11a ₁ and 11b ₁ . Due to the release of the gripping action release mechanism 71, the wire gripping mechanism 41 again releases the wire Wa.
Grasp and secure.

(19) Cut the electric wire Wa into a predetermined size by opening and closing the cutting device 11.

(20) The left and right lifting clamps 91a and 91b descend while holding the loop-shaped cut electric wire Wa, and the two sets of clamping claws 94 and 94 close and grip both ends of the electric wire Wa, and move the left and right Lifting clamp 91
a and 91b are both opened and moved back to the original raised position.

(21) Due to the one-pitch drive of the transfer conveyor 92, the preceding U-turn side electric wire Wa is removed from the coating stripping device 95.
a, and the coating on the end is stripped off by the operation of the device.

(22) Furthermore, the transfer conveyor 92 is driven one pitch, and the coating stripping device 95a is moved in the same way as in step (21).
As a result of the operation, the coating on the rear end of the electric wire Wa is stripped off.

(23) By driving the transfer conveyor 92 in step (22), two sets of clamping claws 94, 94 are newly arranged below the U-turn guide plate 89, and are brought into the open state.

Between the steps (21) to (23), the step (8)
The operations of ~(12) are performed to prepare for the next feeding and cutting process of the electric wire Wa, and by repeating these operations in sequence, a loop-shaped cut electric wire Wa is manufactured, and the wire is coated in the wire end processing section E. The stripping device 95a strips the coating from both ends of the cut wire Wa, and if necessary, the terminal crimping device 96 crimps the terminal to the coated ends, and the finished products of the cut wire Wa are sequentially stored in the storage box 97. will be put into the

When the stage of changing the wire type from Wa to Wc is reached, the process does not proceed from steps (18) to (19) above, and the following step (1') for changing the wire type is performed.
Proceed to ~(6′).

(1') The box 53 and the like are lowered by the drive of the motor 48, and the opening/closing arms 58a and 58b close to grip the wire guide tube unit 8a.

(2') As the positioning and fixing mechanism 80 is released, the positioning rod 81 moves back to the right and is disengaged from the round hole _37c3 .

(3') The box 53, guide tube unit 8a, etc. are raised to the intermediate position by the reverse rotation of the motor 48. At this time, the right side surface of the rear enlarged portion 37c of the guide tube unit 8a is attached to the grip plate 2 of the left grip tool 24a.
7.

(4') When the grip action release device 34 is released, the operating rod 29 is raised by the spring force of the coil spring 30.
The swinging arm 31 rotates back counterclockwise in FIGS. 3 and 5, and the claw 31b is inserted into the rectangular hole 37.
c ₂ and grip and fix the guide tube unit 8a.

(5') The opening/closing arms 58a and 58b open to release the guide tube unit 8a, and at the same time, they move together with the box 53 and return to the original raised position.

(6') The left and right moving body 17 is driven by the motor 18,
Support plate 20, left, middle, and right grips 24a to 24c
When the wire guide tube units 8a to 8c, etc. move to the left as a unit, and the central axis M of the guide tube unit 8c matches the feeding axis H in the left-right direction based on the position information from the encoder 19, the movement is stopped. do.

Thereafter, the process for the electric wire Wc returns to step (1), and the steps after step (1) are executed.

In addition, in the above embodiment, guide tube unit selection/
The delivery device 9 was placed above the guide tube unit receiving/arranging device 12 to save the installation area of the entire electric wire manufacturing machine. However, if the installation area in the front and rear direction is allowed to be expanded, the device 9 can be arranged as follows. It can be placed below.

That is, excluding the lifting clamp body 46, each wire guide tube unit 108 has a rectangular enlarged part 137a formed at the rear of the rear block 137, as shown in FIG. An extending lateral groove _137a1 having a trapezoidal cross section is cut and the lateral groove 13
Square hole 13 corresponding to the square hole 37c ₂ at the rear inside 7a ₁
7a, and further _a round hole 137a3 corresponding to the round hole _37c3 is bored in the center of the right side of the enlarged portion 137a.

The guide tube unit selection/delivery device is arranged far behind the base 7, so that the center axis M' of the guide tube unit 108 held by each gripper is at the same height as the feeding axis H. Configure. Further, on the left inner surface of the concave portion of the concave member corresponding to the concave member 70, an elongated protrusion having a trapezoidal cross section extending in the front-rear direction and capable of fitting into the lateral groove 137a is formed.

Therefore, in this embodiment, the guide tube unit selection/delivery device selects the desired guide tube unit 10.
The central axis M' of 8 coincides with the feeding axis H, and the entire receiving/arranging device is moved back, so that the rear enlarged portion 13 is attached to the concave member at the tip of the support arm member.
7 are fitted, and the guide tube unit 108 is delivered and received.

In addition, as a method of using the wire exchange device of the present invention, the same electric wire is wound around each wire supply reel 1a to 1c, and a stock-out signal is sent from a wire stock-out detector (not shown) provided on each reel. If the wire guide tube units 8a to 8c are replaced in sequence, the operation will not be interrupted due to stock shortage.

(Effects of the Invention) As detailed above, according to the wire exchange device of the present invention, wires from a plurality of wire supply reels are guided to each wire guide tube unit, and these guide tube units are selected and The desired wire guide tube unit is gripped by each gripper of the delivery device, selectively positioned at a predetermined delivery position, released from its grip, and then delivered to the guide tube unit receiving/arranging device. Even when it is desired to process electric wires, the electric wires can be continuously and automatically replaced without interrupting the operation of the electric wire manufacturing machine, which is highly effective in mass production of a wide variety of products.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall plan view of a wire manufacturing machine including a wire exchange device, and FIG. 2 is an enlarged plan view of the wire exchange device portion of FIG. 1.
3 is a front view taken from the direction shown in FIG. 2, FIG. 4 is a side view of the wire guide tube unit, FIG. FIG. 3 is a side view of the guide tube unit. 1a, 1b, 1c...Electric wire supply reel, 8a, 8
b, 8c... Wire guide tube unit, 9... Guide tube unit selection/delivery device, 10... Length measurement feeding device, 1
DESCRIPTION OF SYMBOLS 1... Cutting device, 12... Guide tube unit receiving and arranging device, 17... Left and right moving body, 20... Support plate, 24
a, 24b, 24c...Gripper, 34...Gripping action release device, 46...Elevating clamp body, 69...Support arm member, 70...Concave shape member, Wa, Wb, Wc...Electric wire.

Claims (1)

[Claims] 1. An electric wire manufacturing machine equipped with a length measuring and feeding device that measures and feeds an electric wire, and a cutting device that cuts the length of the electric wire fed from the length measuring and feeding device into a predetermined size. , a plurality of electric wire supply reels arranged in parallel with each other and each having an electric wire wound thereon; and a plurality of electric wire supply reels that guide the electric wire supplied from the electric wire supply reels in the direction of the electric wire feeding axis, receive the electric wire, and releasably grip the electric wire. a wire guide tube unit; a movable body that is movable in a horizontal direction perpendicular to the wire feeding axis; and a movable body that is disposed on the movable body along the direction of movement and that releasably grips each of the wire guide tube units. a plurality of gripping tools, a driving means for moving the movable body so as to selectively position one of the wire guide tube units gripped by the gripping tools at a predetermined delivery position; a guide tube unit selection/delivery device comprising a grip action release device that releases the grip of the gripper on the wire guide tube unit when the wire guide tube unit is positioned at the predetermined delivery position; Receive the wire guide tube unit in the released state, which has been moved to a predetermined delivery position by the unit selection/delivery device, from the gripping tool directly or indirectly through an appropriate relay means, and downstream in the direction of the wire feeding axis. A wire changing device for a wire manufacturing machine, comprising a guide tube unit receiving and arranging device that moves and places the guide tube unit at a predetermined position with respect to the length measuring and feeding device. 2. The electric wire guide tube unit includes a rectangular block, a guide tube that is supported through the block and through which the electric wire is inserted, a through hole that extends from the side surface of the block to the inside of the guide tube, and a through hole that is inserted into the through hole so as to be freely retractable. 1. An electric wire gripping mechanism having a pressing plate and a spring biasing means for inserting the tip of the pressing plate into a guide tube and pressing the electric wire against the inner wall of the guide tube. Wire switching equipment in machines. 3. The relay means includes a box body that moves up and down in the vertical direction perpendicular to the wire feeding axis, and holding plates that are guided out from the box bodies and that grip the wire guide tube unit on mutually opposing surfaces. An electric wire exchange device for an electric wire manufacturing machine according to claim 1, comprising an elevating clamp body comprising a pair of opening/closing arms. 4. The guide tube unit receiving and arranging device includes a support member extending in a horizontal direction perpendicular to the wire feeding axis, and a supporting arm member that is fixedly attached to the distal end of the support arm member to receive the wire guide tube unit and position and fix the unit. An electric wire changing device in an electric wire manufacturing machine according to claim 1, comprising a concave member.