JPH0727775Y2 - Shield wire cutting device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION In the present invention, for example, a shield wire (also referred to as a ground wire) formed at one end of a shield wire used for a wire of an automobile or a lead wire of OA equipment is covered with a core wire (coated). The present invention relates to a shielded wire cutting device for a shielded electric wire that cuts a core wire).

[0002]

2. Description of the Related Art Generally, shielded wires used for wiring of automobiles and lead wires of office automation equipment are arranged as shown in FIGS. 5 (A) and 5 (B) in order to prevent adverse effects of harmful radio waves from the outside. , A plurality of shielded wires b are twisted and wound around the outside of the core wire (coated core wire) a, or a plurality of shielded wires b are knitted in a mesh shape, and the outside of the shielded wire b is insulated. It is configured by covering the outer cover c.

The strip forming means of this kind of shielded electric wire which has been already proposed is constructed as shown in FIGS. 6 and 7.

That is, as shown in FIG. 6 and FIG. 7, the strip forming means of the shielded electric wire W is attached by crimping a terminal to the strip at the end of the core wire a cut and measured, For soldering, a part of the insulating jacket c is peeled off to form a strip portion, and the twists of the plurality of shield wires b are twisted back by a pair of nylon rotating brushes d to be bundled. The shield wire b is cut and removed by scissors (not shown) by hand.

On the other hand, the strip forming means of the shielded electric wire, the twisting of the plurality of shielded wires b is untwisted by a pair of rotating brushes made of nylon and bundled, and then the shielded electric wire W is grasped by a clamp device, Means for cutting and removing the bundled shielded wires b with a pair of scissors (not shown) cutters have already been proposed.

[0006]

However, the cutter means of the shielded wire for manually cutting and removing the shielded wire b by means of the scissors as described above consumes time and labor, does not improve the production efficiency, and is a uniform shielded wire. It is difficult to remove b.

On the other hand, a means for gripping the shielded electric wire W with a clamp device and cutting the bundled shielded wire b by a pair of scissors-shaped cutters to remove the shielded electric wire W is as follows: As shown by the chain line in FIG. 5 (B), when the position of the bundled shielded wire b is swung and displaced when gripped, the bundled shielded wire b is not set to a predetermined upper position, and the bundled shielded wire b is scissor-shaped. It is difficult to cut and remove with a pair of cutters.

In order to solve the above-mentioned problems, the present invention can damage the core wire regardless of the position of the shielded wire which is rotated and misaligned when the shielded wire is gripped by the clamp device. It is an object of the present invention to provide a shielded wire cutting device that surely cuts and removes bundled shielded wires with a cylindrical cutter.

[0009]

According to the present invention, a carrier device is provided in a machine frame so that a shielded wire having a strip portion in which a shield wire and a core wire are separated is gripped and intermittently carried. A support frame is horizontally provided orthogonally to the transfer device, and a pair of guide rails and a feed screw are provided in parallel on the support frame. A movable holder is screwed to the feed screw and both guide rails are provided. Slide along the front and rear direction, and a cylindrical cutter is installed at the tip of this movable holding body so as to cut the shield wire while inserting the core wire, and the movable guide frame body slides on the movable holding body in the front and rear direction. The movable guide frame body is fitted so as to move, and an electric wire clamp device is provided at a tip end portion of the movable guide frame body, and an outer circular cutter is provided in a pair in a pair of clamp claw portions of the electric wire clamp device. Mosquito It is intended to cut in data cooperation.

[0010]

According to the present invention, when the shielded wire is cut, the shielded wire having the strip portion for dividing the shielded wire and the core wire is grasped and carried by the carrying device for carrying the wire intermittently in advance. The guide frame is slid to the transport device in front, and the shielded wire of the strip portion gripped by the transport device is clamped from the outside by both outer circular cutters of the wire clamp device, and then the movable guide frame is moved backward. By sliding the core wire a of the shielded electric wire W of the clamp claw members erected on the movable guide frame into the cylindrical cutter while waiting to cut the shielded wire, and the feed screw rod. And sliding the movable holding body screwed to the front side along the guide rails to fit the inner cylindrical cutter to the outer circular cutter while inserting the shield wire. The shielded wire is cut by the above, and when the shielded wire is gripped by the clamp device, the bundled shielded wire is swung and misaligned at any position without damaging the core wire. It surely cuts.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below.

1 to 4 (A) (B) (C), reference numeral 1 denotes a horizontally installed machine frame in an electric wire processing machine for processing the tip portion of the shielded electric wire W. 1 is a conveying device 2 formed of a pair of upper and lower conveyor belts.
Are horizontally wound so as to be conveyed intermittently, and the conveying device 2 grasps a shielded electric wire W having a strip portion in which a core wire a and a shielded wire b are preliminarily sorted and conveys it horizontally. It is provided. In addition, a support frame 3 having a substantially channel shape is provided horizontally in a part 1a of the machine frame 1 so as to be orthogonal to the transfer device 2. A guide rail 4 and a feed screw 5 such as a ball screw are provided in parallel. Further, an output shaft 6a of a pulse motor 6 is connected to one end of the feed screw 5, and a movable holder 7 is slidable in the front-rear direction along the guide rails 4 on the feed screw 5. Is screwed to. Furthermore, FIG. 4 (A) (B)
As shown in (C), the tip portion 7 of the movable holding body 7 is
In a, a cylindrical cutter (also called a punch) 8 having a cylindrical shape is provided.
Is provided so that the core wire a can be inserted and the shield wire b can be cut off horizontally, and a holding portion (bracket) 9 is integrally attached to the upper portion of the movable holding body 7. . A stopper 9a is attached to the tip of the holding portion 9, and the stopper 9a regulates the position of an electric wire clamp device 11 described later. Further, a movable guide frame body 10 having a substantially quadrangular shape formed by a pair of guide rails is fitted to the holding portion 9 so as to slide in the front-rear direction, and a distal end portion 10 a of the movable guide frame body 10 is attached to the movable guide frame body 10. The electric wire clamp device 11 is provided vertically in an inverted state.

That is, the tip portion 1 of the movable guide frame body 10
As shown in FIGS. 1 and 3, a holding member 12 having a substantially rectangular tube shape is vertically provided at 0a, and an upper portion of the holding member 12 has a cylinder such as an air cylinder device. The device 13 is erected. In addition, as shown in FIG. 3, a guide groove 12a is provided inside the holding member 12.
Is vertically formed, and a substantially square slider 14 is fitted in the guide groove 12a so as to be slidable in the vertical direction. Further, the pair of clamp claw members 15 of the electric wire clamp device 11 is attached to the pin shaft 16 of the slider 14.
The clamp wire 1 is rotatably pivoted so as to grip the shielded electric wire W.
As shown in FIGS. 3 and 4 (A), an outer circular cutter (also referred to as a blade) 17 is divided into two parts, and the shield wire b is cut in cooperation with the cylindrical cutter 8. It is provided to do. Further, the connecting rods 18 are connected to the upper portions of the clamp claw members 15 by the pins 19, and the other end portions of the connecting rods 18 are connected to the output shaft 13a of the cylinder device 13 by pins. Axis 20
Connected by. A pair of coil springs 21 are interposed between the upper part of the holding member 12 and the slider 14 so as to lower the slider 14.

Therefore, when the wire clamp device 11 closes both clamp claw members 15, the shield wire W is wound.
Is gripped at the same level as that of the transport device 1 by the transport belt.

That is, when the cylinder device 13 is actuated when the both clamp claw members 15 are closed, the output shaft 13a of the cylinder device 13 is pulled up against the elastic force of the coil springs 21 and follows it. And then the slipper 1
4 is also pulled up along the guide groove 12a and each connecting rod 18
The clamp claw members 15 are connected to each other via the pin shafts 16
Is rotated inwardly to close both clamp claw members 15 and hold the shielded electric wire W at a position at the same height as the transport device 2.

On the other hand, the electric wire clamp device 11 performs the reverse operation described above when the both clamp claw members 15 are opened. That is, when the cylinder device 13 is operated, the output shaft 13a of the cylinder device 13 causes the coil springs 2 to move.
The slider 14 descends with the elasticity of 1 and follows the slider 14
Also descends along the guide groove 12a and pivots the clamp claw members 15 outwardly around the pin shafts 16 via the connecting rods 18 to open and grasp the clamp claw members 15. The shielded electric wire W being released is released.

On the other hand, at the tail end of the support frame 3, a vertical bracket 22 is erected at substantially the same height as the transfer device 2, and the vertical bracket 22 has, for example, an air cylinder. A cylinder device 23, such as a device, is mounted horizontally. Also, this cylinder device 23
The tail end portion 10b of the movable guide frame body 10 is connected to the output shaft 23a of the movable body 10 by a pin 24. When the cylinder device 23 is driven, the output shaft 23a of the cylinder device 23 moves the movable guide frame body 10a. 4A by sliding the core wire a of the shield wire W of both the clamp claw members 15 erected on the movable guide frame 10 by sliding the core wire a rearward until it comes into contact with the stopper 9a. ), The shield wire b is inserted into the cylindrical cutter 8 as shown in FIG.
Waiting to disconnect.

A hopper 25 is erected on the machine frame 1 near the electric wire clamp device 11 so as to accommodate the cut chips of the shielded wire b.

The operation of the present invention will be described below.

Therefore, when the shielded wire b is cut, the shielded wire W having a strip portion which divides the core wire a and the shielded wire b is held in advance by the transfer device 2 which is intermittently transferred and conveyed to a predetermined position. Then, once stopped, the shielded electric wire W of the strip portion gripped by the conveying device 2 is clamped from the outside by the outer circular cutters 17 of the electric wire clamping device 11 as described above, and is held quietly.

Next, as shown in FIGS. 4A and 4B, when the shielded electric wire W is clamped and held from the outside by the outer circular cutters 17 of the electric wire clamp device 11, the cylinder device 23 is held. Driven by this cylinder device 2
The output shaft 23a of No. 3 slides the movable guide frame body 10 rearward until it abuts the stopper 9a, so that the shield wire W of the both clamp claw members 15 erected on the movable guide frame body 10 is provided. Attach the core wire a to the cylindrical cutter 8
It waits so that the shielded wire b may be cut while it is put in.
After that, the pulse motor 6 is driven, and the output shaft 6a of the pulse motor 6 rotates the feed screw 5. Therefore, the movable holding body 7 screwed to this is slid forward along the guide rails 4. Then, the inner cylindrical cutter 8 of the movable holder 7 fits into the outer circular cutter 17 to cut the shield wire b (see FIG. 4C).

In this way, according to the present invention, regardless of the position of the bundled shielded wire b turning, the core wire a
It is possible to surely cut and remove the bundled shielded wires b by the both outer circular cutters 17 and the inner cylindrical cutter 8 without damaging the above.

Although the outer circular cutter 17 has been described as a specific example provided integrally with both clamp claw portions 15a of both clamp claw members 15, it can be partially replaced in consideration of replacement due to wear. It is free to change the design.

[0024]

As described above, according to the present invention, a carrier device is provided in the machine frame so as to grip a shielded wire having a strip portion that divides a shield wire and a core wire and to carry the wire intermittently. A support frame is provided horizontally on the machine frame at right angles to the transfer device, a pair of guide rails and a feed screw are provided in parallel on the support frame, and a movable holding body is screwed on the feed screw. Sliding in the front-back direction along both guide rails, a cylindrical cutter is installed at the tip of this movable holding body so as to cut the shield wire while inserting the core wire, and the movable guide frame body is moved back and forth on the movable holding body. The movable guide frame body is provided with an electric wire clamp device, and a pair of clamp claw portions of the electric wire clamp device is provided with an outer circular cutter divided into two parts. On Since it cuts in cooperation with the cylindrical cutter, when holding the shielded wire with the wire clamp device, no matter which position the bundled shielded wire turns, the bundled shielded wire does not damage the core wire. Not only can it be reliably cut and removed, but there is also no risk of leaving uncut portions, and since the virtual axis line between the outer circular cutter of the electric wire clamp device and the cylindrical cutter is determined by the movable guide frame body. Since there is no misalignment between the outer circular cutter and the cylindrical cutter and the structure is simple, there are excellent effects such as easy assembly adjustment and maintenance inspection.

[Brief description of drawings]

FIG. 1 is a side view of a shield wire cutting device according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a sectional view of an electric wire clamp device incorporated in the shielded wire cutting device of the present invention.

FIG. 4 is a view for explaining the operation of the shielded wire cutting device of the present invention.

FIG. 5 is a drawing for explaining a shielded electric wire that has already been proposed.

FIG. 6 is a side view for explaining a strip process of the shielded electric wire.

FIG. 7 is a front view of the same.

[Explanation of symbols]

 1 Machine Frame 2 Conveying Device 3 Support Frame 4 Guide Rail 5 Feed Screw Rod 7 Movable Holding Body 8 Inner Cylindrical Cutter 10 Movable Guide Frame Body 11 Wire Clamping Device 15 Clamping Claw 17 Outer Circular Cutter 23 Cylinder Device

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-1-177810 (JP, A) JP-A-2-36709 (JP, A) JP-A-2-250617 (JP, A) Actual Kaihei 1- 109221 (JP, U) Actual flat 1-109222 (JP, U) Actual flat 1-113514 (JP, U) Actual flat 2-103712 (JP, U) Actual flat 3-131091 (JP, U) Actual Kaihei 6-21313 (JP, U) JP-B-40-15065 (JP, B1)

Claims (1)

[Scope of utility model registration request] 1. A carrying device provided for holding a shielded electric wire having a strip portion for dividing a shield wire and a core wire into a machine frame and carrying the wire intermittently, and a machine frame orthogonal to the carrier device. And a horizontally provided support frame, a pair of guide rails and a feed screw rod that are provided in parallel with the support frame, and the guide screw that is screwed to the feed screw rods and extends along the guide rails in the front-back direction. A movable holder that slides to
A cylindrical cutter provided so as to cut the shield wire while inserting the core wire at the tip of the movable holder, and a movable guide frame body fitted to the movable holder so as to slide in the front-rear direction. An electric wire clamp device provided at the tip of the movable guide frame and a pair of clamp claw portions of the electric wire clamp device are divided into two parts and cut the shield wire in cooperation with the cylindrical cutter. A shield wire cutting device comprising an outer circular cutter.