JP2010205628A - Electric wire exhaust shoot, terminal crimping wire manufacturing machine which has the same, and terminal crimping electric wire manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric wire exhaust shoot in which even a long electric wire and a soft electric wire do not remain on a shoot plate but can be exhausted to a tray. <P>SOLUTION: The electric wire exhaust shoot 70 has a tapered shoot plate 71 of which the feeding direction rear side (electric wire treatment device side) is wide, while the tip side (counter-electric wire treatment device side) is narrow, and a post 75 installed in the vicinity of the lateral direction end part of the shoot plate 71. In a severed electric wire W, after the tip part is sent in the longitudinal direction on the shoot 71, the rear end part is clamped by a clamp device 20B and conveyed in the lateral direction, and after a terminal is crimped to the rear end, exhausted onto the tray 78. At this time, since the tip side of the shoot plate 71 becomes tapered, the center part and the tip part conveyed delayed from the rear end part due to friction or the like with the shoot plate 71 are conveyed onto the tray 78 at nearly the same timing as that of the rear end part. After exhausting, the severed electric wire Wf is locked to the post 75 in a curved shape. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a chute for discharging a manufactured terminal crimped electric wire in an apparatus for manufacturing an electric wire (terminal crimped electric wire) having terminals crimped at both ends.

An example of the step of discharging the electric wire, which is the final stage of the step of manufacturing the electric wire with the terminals crimped at both ends (terminal crimped electric wire), will be described.
Drawing 3 is a figure explaining the discharge process of a terminal crimping electric wire.
In the state shown in the figure, a terminal is crimped to the tip of the cut electric wire W. From here, a terminal is crimped to the rear end of the cut wire W. In this rear end treatment step, there are a cutting step, a step of peeling the rear end of the cut electric wire, and a step of crimping the terminal to the rear end. In these steps, the cutting wire W is clamped at the rear end (wire processing device side end) by the clamping device 20B, and the cutting device 30, the peeling device 40B, and the crimping device are laterally moved on the chute plate 81. Move in the order (not shown). As shown in FIG. 3, the chute plate 81 has a rectangular shape in plan view, and a flat portion 82 on the rear side, and an inclination that is inclined downward from the flat portion 82 toward the front side (the anti-electric wire processing apparatus side). Part 83. On the side of the chute plate 81, a tray 88 is provided in which a completed terminal crimping electric wire is accommodated.

  After the terminal is crimped to the rear end by the crimping device, the rear end portion of the terminal crimped electric wire W is sandwiched by the sandwiching portion of the discharge device 60 and moves from the chute plate 81 onto the tray 88 and is sandwiched on the tray 88. Opens, and the electric wire W falls onto the tray 88.

  Here, when the length of the terminal crimping electric wire W is short (about 30 cm or less), the terminal crimping electric wire is discharged so that the positions of the front end portion and the rear end portion are substantially aligned on the tray 88. However, when the length of the terminal crimping electric wire W is considerably long (100 cm or more), the weight of the electric wire W may slide down from the tray 88 to the floor. Then, the work of picking up the electric wires that have fallen on the floor and bundling them with the same length becomes necessary, and the work efficiency decreases.

  Therefore, a method has been proposed in which a belt conveyor is installed downstream of the discharge chute 81, and a long electric wire is straightened while being conveyed from the tip side by the conveyor, and then discharged to the tray (for example, see Patent Documents 1 and 2). .

  However, in this method, since the belt conveyor needs to be installed on the front surface of the apparatus, it may interfere with the work space and reduce the work efficiency. Moreover, in the case of a long electric wire, the conveyor according to the length is needed and the installation space of a machine becomes wide.

  In the case of a long electric wire or a soft electric wire, as shown in FIG. 3, even after the rear end portion is discharged onto the tray 88, the central portion and the front end portion are in the middle of the discharge chute 81 and the same chute. It may stay due to friction. Then, it may overlap with an electric wire to be transported next, or may become entangled, resulting in trouble in discharging work.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a discharge chute that can discharge a long electric wire or a soft electric wire to a tray without staying on the chute plate.

  The wire discharge chute according to the present invention is a device that cuts an electric wire to a length determined for each product type, and performs a treatment such as crimping a terminal to the terminal of the cut electric wire (cut electric wire). An electric wire discharge chute provided on the discharge side, wherein the cut electric wire has its distal end portion fed in the lateral direction after its distal end portion is fed in the longitudinal direction on the chute. After the treatment, the chute is discharged in a lateral direction, and the chute has a tapered chute plate having a wide rear side (wire treatment device side) and a narrow tip side (anti-wire treatment device side). And a post provided near the lateral end of the chute plate and locked in a curved shape after the cut electric wire is discharged.

  In general, while the rear end of the cut wire is transported laterally over the chute, the center and tip of the wire move laterally on the chute with a delay from the rear end due to friction with the chute. To do. Therefore, taking into account the positional shift between the rear end portion and the front end portion of the cutting electric wire moving in the lateral direction, the front side (the front end side of the cutting electric wire) is more than the rear side (the rear end side of the cutting electric wire). A narrow tapering shape was adopted. Thereby, the rear end portion and the front end portion of the cut wire are discharged from the discharge chute in the lateral direction (on the discharge tray) at substantially the same timing. Furthermore, at this time, since the vicinity of the central portion of the cut electric wire is locked to the post provided in the vicinity of the lateral end portion of the chute plate, the cut electric wire can be prevented from dropping from the discharge chute. . Further, since the cut electric wires are bundled and locked to the post, it is easy to grasp by hand, and the lengths of the discharged cut electric wires can be easily aligned.

  In the present invention, it is preferable that the post is provided so that its position is variable in the longitudinal direction.

  According to the present invention, the position of the post can be changed according to the length of the cut electric wire. If the post is positioned in the vicinity of the central portion of the cut electric wire, the length of the cut electric wire on the front side and the cut electric wire on the rear side from the post are almost the same, and the cut electric wire can be locked with a good balance. For example, when the length of the cut electric wire is long, the post can be moved to the front side of the discharge chute so that the substantially central portion of the electric wire can be locked to the post.

  Furthermore, in this invention, it is preferable that the said post is provided so that it can be tilted or removed.

  Since the cutting wire shorter than the length of the tray can be discharged to the tray, the central portion does not need to be locked to the post. For this reason, when the length of the cut electric wire is short, the post can be brought down or removed.

  A terminal crimping electric wire manufacturing machine according to the present invention includes a feeding device that feeds an electric wire, a peeling device for a tip portion of the electric wire, a first terminal crimping device that crimps a terminal to the tip portion, and the electric wire. A cutting device for cutting to an arbitrary length, a peeling device for a rear end portion of the cut electric wire, a second terminal crimping device for crimping a terminal to the rear end portion, and an electric wire having terminals crimped at both ends The wire discharge device includes the wire discharge chute described above.

  The method for producing a crimped terminal wire according to the present invention includes feeding an electric wire, peeling off the tip of the wire, crimping a terminal on the tip, cutting the wire into an arbitrary length, and cutting the wire. A terminal is crimped to the rear end, and the electric wire having the terminal crimped to both ends is discharged using the wire discharge chute described above.

  As is clear from the above description, according to the present invention, the discharge chute has a tapered shape with a wide rear side (wire treatment device side) and a narrow tip side (anti-wire treatment device side). The rear end portion of the electric wire conveyed by the clamping device and the central portion and the front end portion of the electric wire conveyed while rubbing on the chute plate can be discharged from the discharge chute onto the discharge tray at substantially the same timing. For this reason, long electric wires and soft electric wires do not stay on the chute plate and become entangled. Furthermore, since a post is provided in the vicinity of the lateral end of the chute plate so that the central portion of the electric wire is curved and locked to the post, a long electric wire does not fall from the tray. In this manner, the electric wire can be discharged in a good state by improving the discharge chute very simply without increasing the size of the apparatus as in the case of providing a conveyor downstream of the discharge chute.

It is a perspective view explaining the structure of the discharge chute which concerns on embodiment of this invention. It is a top view explaining an example of the structure of the terminal crimping electric wire manufacturing machine provided with the discharge chute of FIG. It is a perspective view explaining the structure of a general discharge chute.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
First, the terminal crimping wire manufacturing machine 1 will be described with reference to FIG. 2. The terminal crimping wire manufacturing machine 1 of this example cuts the wire into a predetermined length, peels off the coating on both ends of the cut wire, Crimp the terminal to the exposed wire. In the following description, the front side and the rear side indicate the front direction (downstream side) and the rear direction (upstream side) in the wire feeding direction, and the anti-wire processing device side and the wire processing device side.
The terminal crimping electric wire manufacturing machine 1 includes an electric wire feeding device 10 for feeding an electric wire of a predetermined length from an electric wire wound in a roll shape, two clamping devices 20A and 20B for grasping and conveying the electric wire, an electric wire cutting device 30, Peeling device 40A at the end of the residual wire (wire on the wire feeder 10 side), Peeling device 40B at the back end of the cut wire, terminal crimping device 50A at the tip of the residual wire, terminal to the back end of the cut wire A crimping device 50B, and an electric wire (terminal crimped wire) discharging device 60 having terminals crimped at both ends. Furthermore, a chute 70 on which the electric wire sent out from the electric wire feeder 10 is placed, and a discharge tray 78 that is located on the side of the chute 70 and accommodates the discharged terminal crimped electric wire are provided. These devices are arranged on the machine base 2.

  The electric wire feeder 10 includes a pair of encoder rollers 11 and a pair of feed rollers 12, and sends out the electric wire wound in a roll shape by a predetermined length. The electric wire feeder 10 and the two clamping devices 20A and 20B are arranged in series in the electric wire feeding direction (electrical wire longitudinal direction). Here, the clamp device 20A on the side close to the wire feeding device 10 is referred to as an upstream clamp device, and the other clamp device is referred to as a downstream clamp device 20B. Moreover, the position where both the clamp devices 20A and 20B are arranged in series is referred to as an electric wire feeding position.

The upstream side clamp device 20A includes a clamp 21A that grips the tip of the electric wire, a clamp drive mechanism 22A provided with a cam mechanism that opens and closes the clamp 21A, a cylinder that drives the cam mechanism, and the like, and the clamp 21A and the clamp opening and closing mechanism 22A. It is composed of a transport table 23A and the like placed thereon. The conveyance table 23A is movable in the electric wire feeding direction, and is movably provided on the rail 24A extending in the lateral direction in the electric wire conveyance direction (in this example, a direction orthogonal to the electric wire feeding direction).
The downstream clamp device 20B includes a clamp 21B for gripping the rear end of the electric wire after being fed out from the electric wire feeder 10 by a predetermined length (the length of the terminal crimp electric wire to be a product), and a cam for opening and closing the clamp 21B. A clamp driving mechanism 22B provided with a mechanism and a cylinder for driving the cam mechanism, a clamp 21B and a transfer table 23B on which the clamp opening / closing mechanism 22B is placed are configured. The conveyance table 23B is provided so as to be movable in the electric wire feeding direction and movable in the horizontal direction on the rail 24B in the electric wire conveyance direction.
A cutting device 30 for cutting the electric wire is provided between both the clamp devices 20A and 20B.

A terminal crimping device 50A is provided at a point where the upstream clamping device 20A has moved a predetermined distance on the transport rail 24A from the wire feeding position. In addition, a peeling device 40A is provided in the middle of the moving track.
A terminal crimping device 50B is provided at a point where the downstream clamping device 20B has moved a predetermined distance on the transport rail 24B from the wire feeding position. A peeling device 40B is provided in the middle of the moving track.

The movement of the terminal crimped electric wire manufacturing machine 1 will be briefly described.
As an initial state, it is assumed that the tip of the electric wire is gripped by the upstream side clamping device 20A and the terminal is crimped to the tip of the electric wire in the previous step.

  From this state, first, the electric wire feeder 10 sends out the electric wire toward the clamp devices 20A and 20B by a predetermined length (the length of the terminal crimp electric wire to be a product). The fed-out electric wires are held by the clamps 21A and 21B of the respective clamp devices 20A and 20B at two locations, and extend on the chute 70 in the electric wire feeding direction. Then, the electric wire is cut by the cutting device 30. The tip of the wire (residual wire) remaining in the wire feeder 10 is gripped by the clamp 21A of the upstream clamp device 20A, and the rear end of the cut wire (cut wire) is gripped by the clamp 21B of the downstream clamp device 20B. Is done.

  Next, the transport table 23A of the upstream clamping device 20A moves on the rail 24A to the peeling device 40A, and the coating of the end portion of the residual electric wire is peeled off by the device. Next, the transfer table 23A moves to the terminal crimping device 50A, and the terminal is crimped to the peeled tip. Thereafter, the transport table 23A returns to the original position. That is, the terminal is crimped to the tip of the residual electric wire.

  Simultaneously with this operation, the transport table 23B of the downstream clamp device 20B moves to the peeling device 40B, and the device covers the rear end of the cut wire. Next, the transfer table 23B moves to the terminal crimping device 50B, and the terminal is crimped to the rear end that has been peeled off. Thereby, a terminal is crimped | bonded to the both ends of the electric wire cut | disconnected by predetermined length. Thereafter, the rear end portion of the terminal crimped electric wire is held by the holding portion of the discharge device 60. The clamping part moves to the upper side of the discharge tray 78 and opens, and the terminal crimping electric wire is discharged onto the tray 78. The transfer table 23B returns to the original position.

Next, the discharge chute 70 will be described in detail with reference to FIGS.
The discharge chute 70 is arranged so as to cover the upper side of the rail 24B of the downstream clamp device 20B, and the clamp 21B and the clamp drive mechanism 22B move on the rail 24B below the discharge chute 70, and the clamp 21B Projecting from the rear edge 71 a of the discharge chute 70. The discharge chute 70 includes a chute plate 71 and a post 75 provided in the vicinity of the lateral direction (discharge tray side) end portion of the chute plate 71.

  As shown in FIGS. 1 and 2, the chute plate 71 has a rear flat portion 72 and an inclined portion 73 inclined downward from the flat portion 72 to the front side. The chute plate 71 has a tapered shape with a wide rear side and a narrow front side in plan view. Specifically, the rear edge (corner) 71a of the chute plate 71 has a width that reaches the crimping device 50B from the cutting device 30, but the front edge (corner) 71b is a rear edge. The width is about 1/3 of the edge 71a and does not reach the peeling device 40B from the cutting device 30. Further, the length of the flat portion 72 is shorter than the length of the inclined portion 73, and the length of the inclined portion 73 is about twice the length of the flat portion 72. In one example, the inclination angle of the inclined portion 73 is 15 °.

  As shown in FIG. 2, the post 75 is provided on the side surface 73 a of the inclined portion 73. In this example, the post 75 is supported so as to be movable along a long hole 76 formed on the side surface 73 a of the inclined portion 73 and extending in the length direction and to be fixed at an arbitrary position of the long hole 76. Yes. Further, the post 75 is attached so as to be rotatable between a standing position and a collapsed position. As a method for supporting the post 75, for example, there is a method in which the post 75 is slidably attached to the long hole 76 with a bolt. Further, a method of attaching / detaching the post 75 to / from the side surface 73a of the inclined portion 73 without providing the long hole 76, and a plurality of posts at appropriate positions without providing the long hole 76, There is a method of attaching to the position where it falls down.

The discharging action of the terminal crimping electric wire of the discharge chute 70 will be described.
The cutting electric wire W (the electric wire having a terminal crimped at the tip) is moved in the order of the cutting device 30, the peeling device 40 </ b> B, and the crimping device 50 </ b> B with the rear end portion clamped by the clamp device 20 </ b> B. In the clamped state, the center portion and the tip end portion of the cut electric wire W extend from the clamp device 20B so as to be suspended in a substantially straight state on the inclined portion 73 of the chute plate 71 by its own weight. When the length of the cut wire W is longer than the length of the chute plate 71, the tip end of the cut wire W is in a state of hanging downward from the chute plate 71. And while the clamp apparatus 20B moves from the cutting apparatus 30 to the crimping apparatus 50B, the center part and the front-end | tip part of the cutting electric wire W are dragged on the chute | shoot board 71 by the rear-end part pinched by the clamp apparatus 20B. Move horizontally. At the time of movement, the central portion and the front end portion of the cut electric wire W move rearward in the electric wire conveyance direction from the rear end portion sandwiched between the clamp devices 20B due to friction with the surface of the chute plate 71 or the like. For this reason, even if a rear end part moves to the crimping | compression-bonding apparatus 50B, the center part and front-end | tip part have not reached the crimping | compression-bonding apparatus 50B yet. However, since the chute plate 71 has a tapered shape with a narrow tip side, the center portion eventually extends from the tip side edge 71b of the chute plate 71 to the side edge 71c.

  And after a terminal is crimped | bonded to the rear end of the cutting electric wire W with the crimping | compression-bonding apparatus 50B, the clamp apparatus 20B is cancelled | released and the rear-end part of the terminal crimping electric wire Wf is clamped by the clamping part of the discharge device 60. The sandwiching portion sandwiches the rear end portion of the terminal crimped electric wire Wf, conveys it above the tray 78, and drops it onto the tray 78. At almost the same time, the central portion of the cut wire W is also moved above the tray 78 in a state where it is completely covered with the lateral edge 71c of the chute plate 71. That is, the rear end portion of the cut wire W, the central portion, and the front end portion are moved from the chute plate 71 to the tray 78 at substantially the same timing. Then, the terminal crimped electric wire Wf that has been discharged has its rear end portion dropped onto the tray 78, and its central portion is bent and locked to the post 75. As described above, the terminal crimped electric wire Wf is supported by the central portion being locked to the post 75, and the front side portion and the rear side portion of the post 75 are suspended from the central portion. As described above, even if the electric wire is long or soft, the central portion does not stay on the chute plate 71 but is locked to the post 75 and discharged to the tray 78.

  Further, after a large number of terminal crimped wires Wf are discharged, these wires are bundled at the post 75 portion, and can be easily removed from the tray 78 by grasping the bundle portion. Easy to align the length after.

  When the length of the terminal crimped electric wire Wf is shorter than the length of the chute plate 71, the post 75 is tilted. Then, when the rear end portion of the terminal crimping electric wire Wf is sandwiched by the discharge device 60 and conveyed to the tray 78, the central portion and the tip portion of the terminal crimping electric wire Wf are not caught on the post 75 from the discharge chute 70. Fall on top.

  Further, the position of the post 75 can be changed according to the length of the electric wire. The distance between the post 75 and the clamp device 20B is preferably about half the length of the electric wire. That is, when the length of the electric wire is long, the post 75 is moved to the tip side along the long hole 76.

DESCRIPTION OF SYMBOLS 1 Terminal crimping electric wire manufacturing machine 10 Electric wire feeder 11 Encoder roller 12 Feed roller 20 Clamping device 21 Clamp 22 Clamp opening / closing mechanism 23 Transfer table 24 Rail 30 Cutting device 40 Peeling device 50 Terminal crimping device 60 Discharge device 70 Discharge chute 71 Chute Plate 72 Flat portion 73 Inclined portion 75 Post 76 Long hole 78 Discharge tray

JP-A-6-96630 JP 2008-84632 A

Claims (5)

Wire discharge provided on the outlet side (wire discharge side) of the device that cuts the wire to the length specified for each product type, and crimps the terminal to the end of the cut wire (cut wire) A shoot,
On the chute, the cut electric wire is discharged in the lateral direction after the tip end portion is sent over the chute in the longitudinal direction and the rear end portion is sent in the lateral direction and treated. ,
The shoot is
A tapering chute plate with a wide rear side (wire treatment device side) and a narrow tip side (anti-wire treatment device side);
A post provided in the vicinity of the lateral end of the chute plate and locked in a curved shape after the cutting wire is discharged;
An electric wire discharge chute characterized by comprising:   The wire discharge chute according to claim 1, wherein the post is provided in a variable position in the longitudinal direction.   The electric wire discharge chute according to claim 1 or 2, wherein the post is provided so as to be upside down or removable. A feeding device for feeding electric wires;
A peeling device for the tip of the wire;
A first terminal crimping device for crimping a terminal to the tip;
A cutting device for cutting the electric wire into an arbitrary length;
With a peeling device at the rear end of the cut electric wire,
A second terminal crimping device for crimping the terminal to the rear end;
A wire discharge device with terminals crimped on both ends;
Including
The terminal crimping electric wire manufacturing machine, wherein the wire discharging device includes the wire discharging chute according to any one of claims 1 to 3. Feeding the wire,
Peel the tip of the wire,
Crimp a terminal to the tip,
Cut the wire to any length,
Peel the rear end of the cut wire,
Crimp a terminal to the rear end,
A method for producing a terminal crimped electric wire, comprising: discharging an electric wire having terminals crimped at both ends using the electric wire discharge chute according to any one of claims 1 to 3.

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