JPH0326488B2 - - Google Patents

Description

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

(Prior Art) Conventionally, a wire feeding device and a cutting device are arranged sequentially 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. A wire transfer device was provided in which the arranged clamping claws were driven intermittently in circulation for each pitch, and various coating stripping devices, terminal crimping devices, crimp terminal housing insertion devices, etc. were arranged along the transfer path of the transfer device. Electric wire manufacturing machines were known.

(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 an object of the present invention is to provide a wire changing device for a wire manufacturing machine that can continuously and automatically replace wires to be processed.

(Means for Solving the Problems) In order to achieve the above object, the solving means of the present invention includes a wire feeding mechanism that feeds a predetermined amount of electric wire, and a wire feeding mechanism that feeds a predetermined amount of electric wire from the wire feeding mechanism. The present invention assumes an electric wire manufacturing machine equipped with an electric wire cutting mechanism that cuts the electric wire 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 movable in a horizontal direction perpendicular to a predetermined electric wire feeding axis passing through the electric wire feeding mechanism and the electric wire cutting mechanism are provided. a movable body arranged in parallel with the movable body so that each center axis is parallel to the wire feeding axis, and a standby position and the wire feeding mechanism in the direction of the wire feeding axis with respect to the movable body. a plurality of guide tube units supported movably between a predetermined position and a predetermined position for receiving and releasably gripping the electric wire from each of the electric wire supply reels; and a desired guide tube among the plurality of guide tube units. a left-right movement control means for controlling the movement of the movable body so as to selectively position the unit at a position where its central axis coincides with the wire feeding axis; and a back-and-forth moving means for moving the guide tube unit in a state corresponding to the electric wire feeding axis from the standby position to a predetermined position with respect to the electric wire feeding mechanism along the electric wire feeding axis.

(Function) Accordingly, in the present invention, the electric wires from the plurality of electric wire supply reels are guided to each guide tube unit arranged in parallel on the moving body. Then, the guide tube unit into which the desired wire can be inserted is positioned on the wire feeding axis by controlling the movement of the movable body by the left and right movement control means, and then moved from the standby position to a predetermined position with respect to the wire feeding mechanism by the back and forth movement means. Therefore, the wire feeding mechanism can selectively feed only the predetermined wires.

(Example) Hereinafter, an example of the present invention will be described in detail based on the drawings. 1 to 3 show the overall configuration of a wire manufacturing machine equipped with a wire changing device according to an embodiment of the present invention, and FIGS. 4 and 5 show the wire feeding mechanism part, and FIG. The figure shows the wire gripping mechanism in detail.
For convenience of explanation, the left and right in FIGS. 1 and 2 are respectively referred to as "left" and "right", and the left and right in FIG. 3 are respectively referred to as "rear" and "front" or "upstream in the feeding direction". - Referred to as "downstream in the feeding direction".

The electric wire manufacturing machine in this embodiment shown in FIGS. 1 to 3 mainly consists of an electric wire supply section A, an electric wire exchange/feeding/cutting section B, and an electric wire U.
It consists of five components: a turn forming section C, a wire transfer section D, and a wire end processing section E.

As shown in FIG. 3, the electric wire supply section A has nine electric wire supply reels 1 each wound with different types of electric wires Wa, Wb, ... Wi (generally referred to as electric wires W).
a, 1b,...1i (however, only 1f and 1g are shown)
are arranged side by side in a staggered manner on the left and right, and electric wires Wa~ protrude forward in the feeding direction from each supply reel 1a~1i.
Wi is the guide roller 2a to 2i (however, 2
(only 3g is shown) and wire drawing roller groups 3a to 3i (however, only 3g is shown) to the next stage of wire exchange, feeding,
Head to cutting processing section B.

The wire exchange/feeding/cutting processing section B is installed in a box 4 elongated in the left-right direction as shown in FIG. 1, and includes a wire selection mechanism 5, a wire feeding mechanism 6,
and a wire cutting mechanism 7.

First, the electric wire selection mechanism 5 will be explained mainly with reference to FIG. In FIG. 3, reference numeral 8 indicates four columns erected on the left, right, front, and rear sides of the upper surface of the box body 4, and reference numeral 9 indicates a 2 column horizontally suspended between each of the left and right columns 8.
The horizontal members of the book, 10 are two rails laid horizontally on the left and right on the upper surface of each of the horizontal members 9, 11 is a horizontal rectangular frame-shaped movable body, which is fixed on the left, right, front, and rear lower surfaces thereof. The four sliding bearings 12 are attached to the rail 10.
It can be moved horizontally to the left and right by fitting it in.

Within the frame of the movable body 11, nine guide tube units 13 are arranged side by side on the left and right, as shown in FIG. Each guide tube unit 13 is shown in FIGS. 1 and 3.
As shown in the diagram, front and rear blocks 1 are spaced appropriately in the front and rear.
4 and 15 are connected by two connecting members 16 on the left and right,
Front and rear guide tubes 17 and 18 having concentric center axes (indicated by M in FIG. 2) extending in the front and rear horizontal directions are supported through each of the front and rear blocks 14 and 15, respectively. And the front/rear guide pipe 1
7 and 18 are separated just between the front and rear blocks 14 and 15, and are extended forward and rearward, respectively, and the extended portions are aligned with the central axis M at the front and rear horizontal parts 11a and 11b of the movable body 11. It is inserted into and supported by the front and rear fixed guide tubes 19 and 20 which are supported through and concentrically with the front and rear fixed guide tubes 19 and 20 so as to be non-rotatable and slidable only in the front-back direction. Furthermore, a driven roller 2 is attached to the rear end of the rear guide tube 18 via a bracket 22 so as to be horizontally rotatable.
3 is pivoted.

A ball screw mechanism 24 as shown in FIG. 2 is provided to move the movable body 11 in the left-right direction. That is, as shown in FIG.
A ball nut 25 is fixed to the lower surface of the center of the left end of the nut 1, and a long shaft screw 26 is attached to the ball nut 25.
are screwed horizontally on the left and right. The screw 26
The right end of the screw 26 is supported by a bearing 28 fixed inside the cross member 9, and the left side of the screw 26 is supported by a bearing 28 fixed inside the cross member 9.
It is loosely inserted into a hole in a rectangular support plate 29 erected on the upper surface of the left end portion of the support plate 29 and extends to the left. On the other hand, a reversible servo motor 30 is installed on the upper part of a vertical bracket 31 protruding from the left side of the box body 4.
The end of the output shaft 30a extending to the right is the coupling 3
2, and is connected to the left end of the screw 26 via the motor 30.
1 along the rail 10 in the left-right direction to selectively position a desired guide tube unit 13 at a position where its central axis coincides with the wire feeding axis Mo. ing. In FIG. 2, 33 is a potentiometer installed on the upper part of the support plate 29, and the tip of the input shaft 33a extending to the right is connected to an L-shaped bracket 34 protruding from the upper surface of the center of the left end of the movable body 11. It is fixed, and the position information of the moving object 11 is inputted sequentially.

Furthermore, as shown in FIGS. 2 and 3, one of the guide tube units 13 positioned on the wire feeding axis is connected to the wire feeding mechanism 6 and the wire cutting mechanism 7. A guide tube unit back-and-forth moving mechanism 35 (back-and-forth moving means) for positioning and moving along the axis Mo is provided and has the following configuration. That is, the driven rollers 23 are provided in a horizontal manner spaced apart from each other on both the left and right sides of the wire feeding axis Mo at the rear of the horizontal member 9, and the driven rollers 23 are fitted into and engaged with the recesses so as to be able to roll freely. Concave guide rails 36a and 36b that hold the pipe unit 13 in a rear standby position, and the concave guide rail 36
a, 36b so as to be connectable, and the lower part thereof is inserted so as to be freely movable back and forth along a guide shaft 39 that is pivoted in the front and rear horizontal direction on a bracket 38 that projects from the rear surface of the rear cross member 9. A concave moving short rail 37 and a swinging arm 4 for moving the moving short rail 37.
Consists of 0. The swinging arm 40 has a box body 4 at the bottom.
A pushing roller 41 pivotally attached to the inner bottom and pivotally supported at the upper end is engaged with an inverted concave member 42 fixed to the downwardly extending end surface of the short moving rail 37. The swing arm 40 has a cam follower 43 in the middle part.
The cam follower 43 supports the cam group 4 which is rotated by a drive source 44 installed inside the box body 4.
5.

As shown in FIG. 3, a wire gripping mechanism 46 is provided in association with the rear block 15, the details of which are shown in FIG. That is, in FIG. 6, 4
Reference numeral 7 denotes an inverted convex pressing member, the lower convex portion 47a of which is fitted into the upper surface of the rear block 15 and a hole 15a formed in the rear guide tube 18 so as to be vertically movable. Reference numeral 48 denotes a pair of left and right round bars with threaded portions formed only at the upper and lower portions, which are loosely inserted into through holes 15b vertically bored in the left and right portions of the rear block 15, with the upper threaded portions formed in the upper and lower portions. The pressing member 47 is screwed onto the left and right protrusions and tightened with bolts, and the lower threaded portion is screwed onto a support plate 50 which pivotally supports the driven roller 49 on the lower surface. Further, 51 indicates the lower surface of the rear block 15 and the support plate 50.
A compression spring is wound around each of the round bars 48 between the top surface and the constant support plate 50, the round bar 48, and the pressing member 4.
7 is integrally urged downward, and at this time, the lower surface of the pressing member 47 is an electric wire W that can be inserted into the rear guide tube 18.
The electric wire W is pressed against the bottom wall of the rear guide tube 18 to firmly hold the electric wire.

In FIG. 3, 52 indicates the wire gripping mechanism 46.
It is a grip release mechanism related to the above-mentioned horizontal members 9, 9, which is disposed below the wire feeding axis Mo, and whose intermediate bent portion swings in the front-rear direction above the support column 53 erected on the box body 4. It is provided with a bent push member 54 that is freely pivoted. The pushing member 54 has a flat, rearwardly extending pushing surface 54a formed at one end, and the other end is linked to the cam group 45 via a vertical link 55. The grip release mechanism 52 normally holds the pushing member 54 in a position where the pushing surface 54a is retracted downward, and lifts the vertically moving link 55 at appropriate times to move the pushing member 54 as shown in FIG. rotate in the rotational direction, the pushing surface 54a comes into contact with the driven roller 49, and the driven roller 49 is pushed up against the compression spring 51;
As a result, the pressing member 47 and the like rise together to release the grip on the electric wire. At this time, the pushing surface 54a is in a substantially horizontal state, so when the guide tube unit 13 moves back and forth, the driven roller 49 rolls on the pushing surface 54a, maintaining the wire gripping state. be able to.

As shown in FIG. 3, the wire feeding mechanism 6 has two pairs of wire feeders, one upper and lower pair and one front and rear, which can be opened and closed vertically within the same vertical plane as the wire feeding axis Mo, and can rotate around the left and right horizontal axes. Rollers 56a, 56b, 56
c, 56d, details are shown in Figures 4 and 5.
As shown in the figure, it is as follows. That is, in FIGS. 4 and 5, reference numeral 57 penetrates in the left and right horizontal direction between the support plate 29 and the support plate 58 erected on the upper right surface of the box body 4 above the front part of the moving body 11. With the supported fixed shaft, the support plates 29, 58
Multi-branched links 59 and 60 are pivotally attached to the left and right extensions from the rear end, respectively, so as to be swingable in a vertical plane. The feeding roller 56 is disposed between the tips of the side branch portions 59a and 60a of the links 59 and 60, respectively.
A rotary shaft 61 with a fixed portion a fixed at the intermediate portion is mounted rotatably in left and right horizontal directions. Also, 62,
63 are links of equal length that are appropriately spaced rearward from the fixed shaft 57 and whose bases are supported concentrically on the opposing inner surfaces of the support plates 29 and 58, respectively, and both links 62 and 6
A rotary shaft 64 with the feeding roller 56c fixed to the intermediate portion thereof is mounted between the ends of the rotary shaft 3 so as to be rotatable in the left and right horizontal directions. And the rotating shaft 61,
64 is the right side of the support plate 29 and the support plate 58
Links 6 each of equal length in the more rightward extension
5, 66, and the side branch 59a of the link 59 and the links 62, 65, and the one side link portion 60a of the link 60 and the links 63, 66.
Similar parallel link mechanisms 67a and 67b, respectively.
It consists of Therefore, these parallel link mechanisms 67a and 67b work together through the rotating shafts 61 and 64 to move the feed rollers 56a and 56c vertically apart from each other horizontally in the front and rear directions, and move up and down as a unit while maintaining the same height level. It's getting used to me. Furthermore, 6
8 and 69 are concentrically mounted on the left and right sides of the support plates 29 and 58, respectively, at a position directly below the central axis of the fixed shaft 57, and the intermediate portion thereof is pivotally movable within a vertical plane. It is a multi-branched link, and each of the lateral branches 68 of the links 68 and 69
A rotary shaft 70 with the feed roller 56b fixed to the intermediate portion thereof is mounted between the tips of the rollers a and 69a so as to be rotatable in the left and right horizontal directions. Reference numerals 71 and 72 are links which are appropriately spaced rearward from the pivot points of the links 68 and 69 and whose bases are pivotally supported concentrically on the opposing inner surfaces of the support plates 29 and 58, respectively. A rotary shaft 73 with the feeding roller 56a fixed to the intermediate portion is mounted between the ends so as to be rotatable in the left and right horizontal directions. The rotating shafts 70 and 73 are connected by links 74 and 75 of equal length on the right side of the support plate 29 and on the right side extension of the support plate 58, respectively, and the side branch portion 68a and the links 71 and 74 are connected to each other by links 74 and 75 of equal length. , a side branch 69a, and links 72 and 75, which are vertically symmetrical to the parallel link mechanisms 67a and 67b, respectively.
6a and 76b. Therefore, these parallel link mechanisms 76a and 76b are connected to the rotating shaft 70,
The feeding roller 56b,
56d are spaced apart from each other horizontally in the front and rear, and move up and down as one while maintaining the same height level.
Furthermore, the parallel link mechanisms 67a, 67b, 7
6a and 76b are configured to perform vertically opposing parallel linking actions by the following linkage mechanism. That is,
Downward branches 59b, 60b of the links 59, 60
Small rollers 77 and 78 are each pivotally supported at the tips,
The small rollers 77 and 78 are connected to the link 6, respectively.
The small rollers 77, 78 are fitted into semicircular recesses formed at the tips of the upper branch parts 68b, 69b of the rollers 8, 69 in a freely rolling manner, and the pivot points of the small rollers 77, 78 are located at the ends of the links 59, 68, respectively. Between pivot points and links 60,
It is located approximately midway between the 69 pivot points.
In addition, 79 and 80 are the upper branches 59c and 60 of the multi-branched links 59 and 60 and the support plate 2, respectively.
A tension spring 81 is tensioned between the rear portions of the links 9 and 58, and a cam follower 81 is pivotally supported at the tip of the downward branch portion 68c of the link 68. The cam plate 82 is engaged with the periphery of the cam plate 82. Further, 83 is an operating shaft for the cam plate 82 which is rotatably supported by penetrating the support plate 29 in the left and right direction below the cam plate 82, and swing arms 84 and 85 are fixed to both left and right ends of the operating shaft. The tip of the swinging arm 84 is pivotally connected to the outer end of the cam plate 82 by a rod 86, and the tip of the other swinging arm 85 is connected to one of the cams 45. It is pivotally connected to the upper end of a swinging arm 87 that moves up and down. Therefore, the feed rollers 56a, 56c, 56b, and 56d are normally connected to the parallel link mechanism 67a, with the cam follower 81 engaged with the highest protrusion 82a of the cam plate 82.
Tension spring 7 via 67b, 76a, 76b
9 and 80 to maintain the vertically separated state from each other, the cam plate 82 is rotated counterclockwise as shown in FIG. The cam follower 81 engages with the recessed portion 82b of the cam plate 82 by the spring force of the tension springs 79, 80, and the feed rollers 56a, 56c, 56b, 56d are rotated in the parallel link mechanism 67a, 67b, 76a. , 76b, they each descend and rise in unison to approach each other (states shown in FIGS. 3, 4, and 5), and the feeding rollers 56a, 56
It is designed so that the electric wire W can be held between b and between 56c and 56d.

Next, the rotation mechanism of the feed rollers 56a to 56d will be explained with reference to FIG. 4. In FIG. 4, reference numerals 88 and 89 denote a pair of upper and lower gears that are pivotally supported in a mutually meshing state on a vertical bracket 90 that projects from the front left side of the support plate 29. Timing pulleys 91 and 92 having the same diameter are fixed to each other. Also, 93,9
4, 95, 96 are the links 59, 68, respectively.
A set of two timing pulleys of the same diameter are provided coaxially with the links 59 and 68 so as to be rotatable together with the links 59 and 68, of which the pulleys 93 and 95 have a timing belt between them and the timing pulleys 91 and 92, respectively. 97 and 98 are wound around the pulley 9.
Reference numerals 4 and 96 indicate timing pulleys 9 having the same diameter fixed to the left shaft ends of the rotating shafts 61 and 70, respectively.
Timing belt 101,1 between 9,100
02 is wrapped around it. In addition, the rotating shaft 6
In order to transmit rotations of 1 and 70 to the rotation shafts 64 and 73, respectively, the rotation shafts 61, 70, 64 and 73 are connected to the right side of the support plate 58 as shown in FIG.
A timing pulley 1 with the same diameter is installed at each right shaft end of the
03, 104, 105, and 106 are fixed, and timing belts 107 and 108 are wound between the pulleys 103 and 105 and between the pulleys 104 and 106, respectively. In FIG. 4, 109 is a pulse motor installed at the bottom of the vertical bracket 31,
A transmission timing belt 112 is wound between a drive timing pulley 110 fixed to an output shaft end that can be led out to the right and a driven timing pulley 111 fixed coaxially with the link 68. Therefore, by driving the pulse motor 109,
The drive timing pulley 110 rotates counterclockwise in FIG. 4, and the lower rotating shaft 70 and feed roller 56b rotate counterclockwise via the timing belt 112, driven timing pulley 111, etc. , further via the timing belt 108 and the like to the rotating shaft 73 and the feeding roller 5.
6d also rotates counterclockwise. Further, the rotation of the driven timing pulley 111 is transmitted to the gear 89 via the timing belt 98, causing the gear 88 meshing therewith to rotate in the opposite direction, that is, clockwise in FIG. 4. This rotation causes the upper rotating shaft 61 and the feed roller 56a to rotate clockwise via timing pulleys 97 and 101, etc., and further rotates the rotating shaft 61 via timing pulleys 107, etc.
4 and the feeding roller 53c are also rotated clockwise. That is, both upper feeding rollers 56a, 56c
rotates clockwise, and both lower feeding rollers 5
6b, 56d rotate counterclockwise, and all the feed rollers rotate at the same speed, so the electric wire W held between the feed rollers 56a, 56c and 56b, 56d does not slip. The wire is fed forward along the wire feeding axis Mo.

The wire cutting mechanism 7 is connected to the box body 4 as shown in FIG.
is located at the front of the The cutting mechanism 7 includes a first
As shown in the figure, a pair of opening/closing arms 113a, 113b that can swing left and right about the lower end base as a fulcrum;
A pair of gears (not shown) that are coaxially fixed to the lower end base of each arm and mesh with each other; and cutter blocks 114a and 114b that are fixed to the upper ends of the opening and closing arms 113a and 113b, respectively. A cam actuating mechanism 116 consisting of a pair of cutting blades 115a and 115b mounted opposite to each other on the cutter block, and linked to the opening/closing arm 113a on the left side.
Accordingly, when the opening/closing arms 113a, 113b are closed, the cutting blades 115a, 115b are engaged exactly on the wire feeding axis Mo to cut the wire W.

Next, the electric wire U-turn forming portion C will be explained mainly with reference to FIG. The electric wire U-turn forming part C
As shown in FIG. 1, the front convex semicircular U-turn guide plate 117 is arranged so that the wire feeding axis Mo passes on the left side in front of the wire cutting mechanism 7. , a U-turn roller assembly 118 equipped with a rolling roller that presses the electric wire between the peripheral end surface of the U-turn guide plate 117 and capable of rotating and reciprocating 180 degrees along the peripheral end surface;
It consists of left and right lifting clamps 119a and 119b that rise and fall at positions slightly rearward from the left and right edges of the holder. Then, the electric wire W fed from the selected desired guide tube unit 13 by the electric wire feeding mechanism 6 is turned in a U-turn by the cooperation of the U-turn guide plate 117 and the U-turn roller assembly 118, and the electric wire W is held in a loop shape by the left and right lifting clamps 119a and 119b and cut into a predetermined size by the wire cutting mechanism 7, and then the left and right lifting clamps 119a and 119b descend to cut the looped wire. It is arranged to be delivered to the wire transfer section D described below.

As shown in FIGS. 1 and 3, the wire transfer section D starts from a transfer conveyor 120 that starts slightly to the left of the feed axis Mo, passes below the U-turn guide plate 117, and ends at the right extension point. Become. The transfer conveyor 120 includes a plurality of pairs of clamping tools 122 attached at equal intervals to an endless chain 121 that is wound between a pair of left and right sprockets (not shown), and a chain sprocket linked to one of the sprockets. Through a mechanism (not shown), the endless chain 121 is intermittently circulated in one direction by a clutch and a motor (not shown) with a speed reducer.
Each of the clamping tools 122 is attached to the U-turn guide plate 1.
It is appropriately closed by a solenoid mechanism (not shown) below 17, and opened by the operation of a fixed cam at the end of the transfer.

As shown in FIG. 1, the wire end processing section E sequentially processes the wire ends along the rear side of the transfer conveyor 120 in accordance with the stopping position of each clamping tool 122 according to the length of the wire to be stripped and the wire diameter. A coating stripping device 125 that can automatically adjust the cutting depth, a plurality of terminal crimping devices (not shown) provided for each type of terminal, and an inspection unit (not shown) that inspects the crimped state of the terminal.
and a plurality of sets of housing insertion devices (not shown) for inserting the crimp terminal portions into predetermined housings. It is designed to be housed in a storage box (not shown) installed at the terminal end.

In Fig. 1, 123 is a control device with a built-in microcomputer that comprehensively controls the entire wire manufacturing machine, including a power switch, emergency stop button,
Equipped with alarms, etc. Further, 124 is an operation console derived from the control device 123, and the operation unit 12
4a and a display section 124b. Operation unit 124
A should be equipped with a manual/automatic changeover switch, a group of manual switches, a numeric keypad, a start switch, a wire type selection switch (i.e., to select wires Wa to Wi using wire supply reels 1a to 1i), etc. It has the ability to edit the type of wire, length of wire to be cut, length of sheathing removed, type of terminal, type of housing, number of wires, etc. for each lot and create a program. Further, the display section 124b 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 operation console 124.

The initial state of the wire manufacturing machine is as follows. That is, the movable body 11 has electric wires Wa to Wi inserted into each guide tube unit 13 sequentially from the left and protrudes from the front end of each front guide tube 17 by a predetermined length.
Center axis M of the th (center) guide tube unit 13
is positioned at a position that coincides with the wire feeding axis Mo. Further, the guide tube unit back and forth movement mechanism 35 has the swing arm 40 at the rearmost rotational position and holds the short moving rail 37 connected between the guide rails 36a and 36b. The grip release mechanism 52 moves the pushing member 54 to a counterclockwise rotating position in FIG. 3, and retracts the pushing surface 54a downward. The wire gripping mechanism 46 of each guide tube unit 13 fixes and holds the wires Wa to Wi. The wire feeding mechanism 6 maintains the upper feeding rollers 56a, 56c and the lower feeding rollers 56b, 56d in a vertically separated state from each other, and stops the rotational operation of these feeding rollers. . The wire cutting mechanism 7 maintains the cutting blades 115a and 115b in an open state. The left and right lifting clamps 119a and 119b are U
It is open above the turn guide plate 117, and the U-turn roller assembly 118 separates the rolling roller 118a at the left edge of the U-turn guide plate 117 outward from the circumferential end surface of the U-turn guide plate 117. In addition, the transfer conveyor 120 has two sets of clamping tools 122, left and right lifting clamps 119a and 119b.
It opens below the U-turn guide plate 117 and stops driving.

Now, the control device 123 uses the first command information as the processing mode of the U-turn guide plate Wg (cutting length,
Suppose that the following information is output: length of coating removed, type of terminal and housing, etc.). From this point on, it operates in the following order.

(1) The motor 30 drives the moving body 11 in the rightward direction. As a result, the movable body 11 moves to the right, and when the central axis M of the guide tube unit 13 through which the desired electric wire Wg can be inserted coincides with the electric wire feeding axis Mo, the motor 30 starts driving based on the position information from the potentiometer 33. Stop. The driven roller 23 of the desired guide tube unit 13 is now fitted into the moving short rail 37.

(2) The guide tube unit back and forth movement mechanism 35 is activated. The swinging arm 40 rotates to the forwardmost position using the lower part as a fulcrum, and as a result, the desired guide unit 13 moves forward a predetermined distance, and the front end of the front guide tube 17 of the unit and the tip end of the electric wire Wg that can protrude from this part reaches near the left edge of the U-turn guide plate 117, and the tip of the electric wire Wg
It is in a state where it is fitted into the opening formed by the peripheral end surface and the rolling roller 118a.

(3) The wire feeding mechanism 6 operates. That is, first, the swing arm 87 rotates upward and the cam plate 82 moves to the fourth position.
Parallel link mechanisms 67a, 67b, 76a, 76b rotate in the counterclockwise direction in the figure.
Feed rollers 56a, 56c, 56b, 5
6d descends and rises in opposite directions to sandwich the electric wire Wg exposed between the front and rear blocks 14 and 15 of the guide tube unit 13 from above and below.

(4) By the operation of the grip release mechanism 52, the vertical link 55 is lowered and the pushing member 54 is rotated clockwise in FIG. 3. At that time, the pushing surface 5
4a engages with the driven roller 49 of the wire gripping mechanism 46 and pushes the pressing member 47 upward via the roller, the support plate 50, and the round bar 48, so that the fixed grip of the wire Wg by the wire gripping mechanism 46 is released. be done.

(5) The wire feeding mechanism 6 operates and performs a preliminary feeding operation of the wire Wg. That is, the pulse motor 109 receives a number of pulses corresponding to a predetermined length from the control device 123 as command information, and is driven by a number of revolutions corresponding to the predetermined number of pulses as a preliminary feed and then stops once. At that time, the feed roller 56
a, 56c, 56b, and 56d rotate the electric wire Wg in the counterclockwise direction and clockwise direction in FIG. ) is fed forward. Now the wire
Wg inserts the U-turn guide plate 11 through the opening.
Extends forward on the left side of 7.

(6) U-turn roller assembly 118 is rolling roller 1
18a is moved toward the circumferential end surface of the U-turn guide plate 117, and the electric wire Wg is pressed between it and the circumferential end surface. The U-turn roller assembly 118 then rotates approximately 180 degrees along the circumferential surface. As a result, the electric wire Wg is formed into a semicircular shape, and the tip portion protrudes a predetermined length rearward from the left edge of the U-turn guide plate 117.

(7) The left and right lifting clamps 119a and 119b are slightly lowered together, and of these, the right lifting clamp 11
Only 9b closes to grip the tip of the electric wire Wg.

(8) U-turn roller assembly 118 is rolling roller 1
18a is moved outward from the circumferential end surface of the U-turn guide plate 117 to release the pressure on the electric wire Wg, and the whole turns back to its original position.

(9) The feeding rollers 56a, 56c, 56b, 5
6d rotates again to feed the desired remaining amount of wire Wg, and the wire Wg forms a large loop.

(10) The left lifting clamp 119a closes and grips the middle part of the electric wire Wg.

(11) Due to the downward rotation of the swing arm 87 and the accompanying rotation of the cam plate 82, the rotation roller 56
a, 56c, 56b, and 56d open up and down to release the clamping pressure on the electric wire Wg.

(12) The guide tube unit 13 moves backward due to the rearward rotation of the swing arm 40, and the front end of the front guide tube 17 is located slightly rearward from the positions of the cutting blades 115a and 115b. At this time, the driven roller 49
Since the electric wire Wg rolls on the guide tube unit 13, it is maintained in a free state with respect to the guide tube unit 13.

(13) The grip release mechanism 52 is deactivated and the electric wire gripping mechanism automatically returns to firmly grip the electric wire Wg again.

(14) The cutting blade 115 is activated by the operation of the wire cutting mechanism 7.
a and 115b open and close to cut the electric wire Wg to a predetermined size.

(15) The swing arm 40 further rotates rearward, and the guide tube unit 13 returns to its original position. Now the moving short rail 37 and the left and right guide rails 36
It is inserted into a connected state between a and 36b.

(16) The left and right lifting clamps 119a and 119b descend while gripping the loop-shaped cut wire Wg,
The two sets of clamping tools 122 close and grip both ends of the electric wire Wg, and then the left and right lifting clamps 1
Both 19a and 119b are opened and moved back to the original raised position.

(17) By driving the transfer conveyor 120 one pitch, the leading end of the U-turn side electric wire Wg is presented to the coating stripping device 125, and the coating of the end portion is stripped by the operation of the device.

(18) The transfer conveyor 120 is driven one pitch, and as in step (17), the coating on the rear end of the electric wire Wg is stripped off by the operation of the coating stripping device 125.

(19) When the transfer conveyor 120 is driven in step (18), two sets of clamping tools 122 are newly placed below the U-turn guide plate 117 and brought into the open state.

Between the steps (17) to (19), the step (1)
The operations from (7) to (7) are performed, and the next wire Wg is fed and cut. By repeating these operations in sequence, various loop-shaped cut wires are manufactured, and in the wire end processing section E, the sheath stripping device 12
Stripping off the coating from both ends of the cut wire according to 5.
In addition, the terminal crimping device inspects the state of the terminal crimping on the sheath stripped end, and the housing insertion device inserts the crimp terminal portion into a predetermined housing, and the finished products, which have completed the terminal treatment of the cut wires, are sequentially placed in a storage box. will be put into the

(Effects of the Invention) As detailed above, according to the electric wire exchange device of the present invention, electric wires from a plurality of electric wire supply reels are guided to each guide pipe unit installed in parallel on a moving body, and the electric wires are guided through the guide tube units arranged in parallel on a moving body, and After positioning a guide tube unit through which a desired electric wire can be inserted on a predetermined electric wire feeding axis, the guide tube unit is moved to a predetermined position relative to the electric wire feeding mechanism, and only the desired electric wire is selectively fed from the electric wire feeding mechanism. Therefore, even when various types of wires are to be processed, wires can be replaced continuously and automatically without interrupting the operation of the wire manufacturing machine, which is highly effective in mass production of a wide variety of products.

[Brief explanation of drawings]

All drawings show embodiments of the present invention.
FIG. 1 is an overall plan view of a wire manufacturing machine including a wire changing device of the present invention, and FIGS.
4 and 5 are respectively enlarged side views of FIG. 1 in the direction of - and - arrows, and FIG. 6 is a sectional view of FIG. 3 in the direction of - arrows. be. 1a to 1i...Wire supply reel, 5...Wire selection mechanism, 6...Wire feeding mechanism, 7...Wire cutting mechanism, 11
... Moving body, 13... Guide tube unit, 35... Guide tube unit back and forth movement mechanism, 46... Electric wire gripping mechanism, 5
6a to 56d...Feeding roller, Wa to Wi...Electric wire.

Claims (1)

[Scope of Claims] 1. An electric wire manufacturing machine equipped with an electric wire feeding mechanism that feeds a predetermined amount of electric wire, and an electric wire cutting mechanism that cuts the electric wire fed by the electric wire feeding mechanism in a predetermined amount 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 wire supply reels arranged to be movable in a horizontal direction perpendicular to a predetermined electric wire feeding axis passing through the electric wire feeding mechanism and the electric wire cutting mechanism. a movable body arranged in parallel on the movable body so that each central axis is parallel to the wire feeding axis, and a standby position and a standby position in the wire feeding axis direction with respect to the movable body and a standby position with respect to the wire feeding mechanism, respectively; a plurality of guide tube units that are movably supported to and from predetermined positions and that receive and releasably grip the wires from each of the wire supply reels; and a desired guide tube unit among the plurality of guide tube units. horizontal movement control means for controlling the movement of the movable body so as to selectively position the movable body at a position where its central axis coincides with the electric wire feeding axis; and the horizontal movement control means causes the central axis to coincide with the electric wire feeding axis. 1. An electric wire changing device for an electric wire manufacturing machine, comprising a back and forth moving means for moving the guide tube unit in the electric wire feeding mechanism from the standby position to a predetermined position relative to the electric wire feeding mechanism. 2. The electric wire changing device for an electric wire manufacturing machine according to claim 1, wherein the movable body is formed into a rectangular frame shape, and the guide tube units are arranged in parallel within the rectangular frame. 3. The guide tube unit includes front and rear blocks supported at a distance in the axial direction by connecting members, and front and rear blocks supported through each block along the central axis.
and a rear guide tube, each of which has opposing ends penetratingly supported by the movable body, and a feeding roller of the wire feeding mechanism can be fitted between the two guiding tubes. 2. An electric wire changing device for an electric wire manufacturing machine according to claim 1, wherein said two blocks are separated from each other.