JP2000125431A - Wire stripper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To grip part of a covered electric wire with reliability regardless of the outside diameter of the wire and reduce influences of load exerted on a driving motor, by composing a gripping section of a gripping fixed member fixed at the front end of equipment and a gripping movable member of elastic material fixed at the front ends of gripping arms. SOLUTION: A gripping section 4 comprises a gripping fixed member 22 fixed at the front end of its gripping fixing plate 21, two gripping arms 23 and 23 bolted to the swing arm 12 of a driving mechanism 24 by fastening screws 23a and a gripping movable member 24 fixed at the front ends of the gripping arms, elastic members 22a and 24a formed of elastic material, for example, synthetic rubber, being bonded to the ends of the gripping fixed member 22 and the gripping movable member 24 between them in order to grip part of a covered electric wire to prevent the wire from slipping when its sheath is being stripped. The gripping arms 23 are 23 are formed of elastic material, for example, synthetic rubber, in order to provide themselves with a spring function.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stripping apparatus for an electric wire covered with an insulating material, and more particularly, to a stripping cutter driven by a motor to leave a core conductor near the end of the electric wire and to remove the core conductor portion near the end of the electric wire. The present invention relates to an electric wire coating and stripping apparatus in which a gripping portion is improved so as to securely grip the electric wire regardless of the outer diameter of the electric wire when the coated portion is stripped.

[0002]

2. Description of the Related Art Conventionally, this type of wire coating and peeling apparatus mainly includes a drive mechanism using a cam for transmitting an output from a motor, and a gripping mechanism for gripping a part of the coated wire by the drive mechanism. And a tip cutter for cutting off the tip of the covered electric wire, and a peeling cutter for peeling off the covering part near the tip of the covered electric wire. The gripping portion grips a part of the covered electric wire to be inserted, and cuts the end of the covered electric wire with the tip cutter, while the peeling cutter covers the covered portion of the covered electric wire. This is a device that cuts from the radial direction and slides in the length direction of the covered electric wire to peel off the covered portion.

[0003]

However, in such a conventional electric wire coating and peeling apparatus, when the gripping portion grips a part of the inserted electric wire, the outer diameter of the electric wire is reduced. Regardless of the magnitude of the case, when the gripping force is fixed, if the outer diameter of the electric wire is small, there is a possibility that a large gripping force may be applied to the electric wire to break the wire, and if the outer diameter of the electric wire is large, However, there is a problem that a large load is applied to the drive motor.

On the other hand, when an adjusting mechanism capable of adjusting the gripping force is added to the gripping portion depending on the outer diameter of the electric wire, not only is the structure of the adjusting mechanism complicated, but also the cost is high. There was a problem of becoming.

[0005] The present invention has been made in view of such a point,
An object of the present invention is to solve the above-mentioned problem and to surely grip a part of an insulated wire irrespective of the outer diameter of the insulated wire and to provide a gripping portion having a grip portion for reducing an influence of a load applied to a drive motor. It is to provide a device.

Another object of the present invention is to provide a simple mechanism for adjusting the gripping force in accordance with the outer diameter of the insulated wire.
Another object of the present invention is to provide an electric wire covering and peeling apparatus including a gripping part whose cost is low.

[0007]

According to a first aspect of the present invention, there is provided a driving mechanism including a motor, a gripping portion for gripping a part of an insulated wire to be inserted by the driving mechanism. A tip cutter for cutting the tip of the coated electric wire,
A stripping cutter that cuts the covered portion of the covered wire in the radial direction and slides in the length direction of the covered wire to peel off the covered portion on the distal end side. It is as follows.

The grip portion includes a grip fixing member fixed to a front end of the device, a grip arm fixed to a swing arm of the drive mechanism by a fastening member, and a grip movable member fixed to the front end thereof. And the gripping arm is made of an elastic material.

[0009] The material of the gripping arm is, for example, synthetic rubber or synthetic resin.

Further, when the gripping arm is fixed to the swing arm by the fastening member, the gripping force of the gripping arm is adjusted by changing the fastening position of the fastening member without changing the mutual positions of the two. I do.

Further, an elastic member made of, for example, a synthetic rubber or a synthetic resin is fixed between the holding and fixing member and the holding and movable member, on the surfaces of the electric wires, respectively.

[0012] Further, between the gripping arm and the gripping movable member which are fixed to each other in the gripping portion, an adjusting mechanism capable of vertically adjusting the gripping movable member with respect to the gripping arm, Will be arranged.

According to the present invention, the influence of the outer diameter of the covered electric wire is absorbed by the elastic body of the gripping arm of the gripping portion having an elastic function (spring function). Thus, the effect of the load on the drive motor is reduced.

In the case where the influence of the outer diameter of the covered electric wire cannot be sufficiently absorbed by the elastic body of the gripping arm of the gripping portion, the swing arm and the gripping arm are fastened by the fastening member. By changing the position, the gripping force of the gripping arm is adjusted, and further, by the adjusting mechanism disposed between the gripping arm and the gripping movable member, the gripping movable member is moved relative to the gripping arm. Or displace it vertically.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the drawings. 1 and 2 are views showing an embodiment of an electric wire coating and stripping apparatus according to the present invention. FIG. 1 is a perspective view showing a basic structure of the electric wire coating and stripping apparatus. FIG. It is a side view which shows the main part structure of the said apparatus when a covered electric wire is inserted.

1 and 2, the electric wire coating and stripping apparatus 1 mainly transmits a motor M and mechanical outputs from the motor M via first and second cams 3a and 3b. A driving mechanism 2, a gripper 4 for gripping a part of the coated electric wire W coated with the insulating material by the driving mechanism 2, a tip cutter 6 for cutting a tip of the coated electric wire W, And a peeling cutter portion 5 for peeling off the covering portion near the front end side of the blade.

The drive mechanism 2 has the motor M mounted on its fixed plate 11, and is driven by the motor M by a pulley and a belt via a first cam 3a driven in the direction of the arrow. A fulcrum 11 provided at the upper end of two columns 11a, 11a erected on both sides of the fixed plate 11;
b and 11b, a swing arm 12 swingably disposed around the second cam 3 driven by the motor M
b and the peeling cutter unit 5
And a sliding mechanism 13 that connects the tip cutter 6 and slides in the length direction (the direction of the arrow) of the covered electric wire W. The swing arm 12 is normally moved back by a spring member (not shown).

The gripper 4 has a gripping / fixing member 22 fixed to the front end of the gripping / fixing plate 21 (corresponding to the front end of the device 1) and an adjusting screw on the swing arm 12 of the driving mechanism 2. (Or a fastening screw) consisting of two gripping arms 23, 23 fixed by 23a, and a gripping movable member 24 fixed to the front end thereof, between the gripping / fixing member 22 and the gripping movable member 24, At each end, in order to securely grip a part of the covered wire W so that the covered wire W does not slip during peeling of the covered portion, as an elastic material, for example, synthetic rubber or synthetic resin having elasticity. Elastic members 22a and 24a are fixed.

The gripping arms 23, 23 are made of an elastic material, for example, synthetic rubber or synthetic resin having elasticity, so as to have a spring function on itself. The adjusting screw 23a is provided at equal intervals on the gripping arms 23, 23 as needed to adjust the gripping force of the covered electric wire W between the gripping fixing member 22 and the gripping movable member 24. Through a plurality of through holes 23b and screw holes (not shown) provided in the swing arm 12 corresponding to the through holes 23b, only the fastening position is changed without changing the mutual positional relationship. The gripping arms 23 are fastened to the swing arm 12. At the same time, the adjusting screw 23a may be fastened via a spring seat.

The peeling cutter unit 5 includes a peeling fixing cutter 32 fixed to the front end of the peeling cutter fixing plate 31, and two columns 3 standing upright on both sides of the peeling cutter fixing plate 31.
Support points 31b, 31 provided at the upper end portions of 1a, 31a
b is arranged so as to be swingable about the center b, and is driven (pressed) by a swing arm 12 of the drive mechanism 2 via a pulley 12a, and is always moved back by a spring member (not shown). It becomes the movable cutter 34. The peeling cutter fixing plate 31 is slidably disposed with respect to the grip fixing plate 21. The blade portion of the peeling fixed cutter 32 has a plurality of recesses corresponding to various conductor wire diameters of the covered electric wire.
A drop plate 35 for dropping the peeled material Wa of the covered electric wire W after coating is disposed along the blade surface of the tip portion 4 of the blade.

The tip cutter section 6 is attached to a tip cutter holding member 41 provided on the sliding mechanism 13 of the drive mechanism 2 by
A fixed front end cutter 42 and a movable front end cutter 44 are provided at the front end. Then, the tip movable cutter 44
Is driven (pressed) from the swing arm 12 of the drive mechanism 2 via the peeling movable cutter 34, and is always returned by a spring member (not shown).

Next, the electric wire covering and stripping apparatus 1 having such a configuration performs a series of operations in the following order. (A) When the covered electric wire W is inserted until its tip comes into contact with the tip cutter holding member 41, the insertion of the electric wire W is detected by a proximity switch (not shown), and the controller (not shown) The motor M is started.

After starting the motor M, as shown in FIG. 3, the swing arm 1 is driven by the first cam 3a of the drive mechanism 2.
2 is driven, and a part of the inserted covered electric wire W is gripped by the gripping fixing member 22 and the gripping movable member 24 of the gripping portion 4. Then, the covering portion of the covered electric wire W gripped by the peeling-fixing cutter 32 and the peeling-movable cutter 34 is cut in the radial direction, and at the same time, the covering is performed by the tip-fixing cutter 42 and the tip-moving cutter 44. Cut the end of the electric wire W. The first cam 3a is held at the position shown in FIG.
Further, the wire scraps of the cut covered wire W naturally fall into the receiving box in the device by the tip fixed cutter 42 and the tip movable cutter 44.

(B) Thereafter, as shown in FIG. 4, the stripping cutter unit 5 is driven together with the tip cutter unit 6 by the sliding mechanism 13 to slide in the length direction of the covered electric wire W. The covering portion is peeled and fixed, and the movable cutter 3
Peel with 2,34.

(C) When the sliding mechanism 13 slides a distance determined by the second cam 3b of the drive mechanism 2, the peeled material Wa of the covered portion of the stripped electric wire W moves downward. It falls into a receiving box (not shown) provided.

(D) Next, the first cam 3a of the drive mechanism 2 is rotated by the controller of the motor M in the direction of the arrow shown in FIG. Then, the gripping of the electric wire W by the gripping part 4 is released,
The peeling movable cutter 34 and the distal end movable cutter 44 are separated from the cutting position and the cutting position to the covered electric wire W. At the same time, the second cam 3b also returns the sliding mechanism 13 to the original position. Then, the motor M is stopped by the controller of the motor M.

With the above, the operation of peeling the covered portion near the tip of the covered electric wire W is completed.

FIGS. 5 and 6 show another embodiment of the electric wire covering and stripping apparatus according to the present invention. FIG. 5 shows that the holding movable member 24 is vertically adjusted in the holding section 4 of the apparatus. FIG. 6 is a side view corresponding to FIG. 3, and FIG. 6 is a perspective view showing the position adjusting mechanism 50. As shown in FIG. 1 to 3 are denoted by the same reference numerals, and description thereof will be omitted.

In FIGS. 5 and 6, of the gripping fixing member 22 and the gripping movable member 24 constituting the gripping portion 4, the gripping movable member 24 is held between the gripping arm 23 and the gripping movable member 24 which are fixed. An adjustment mechanism 50 that allows the position of the member 24 to be adjusted in the vertical direction with respect to the gripping arm 23 is provided. That is, when the influence of the magnitude of the outer diameter of the covered electric wire W on the device 1 cannot be completely absorbed by the elastic body of the gripping arm 23, the adjustment mechanism 50
The gripping movable member 24 is slightly displaced vertically with respect to the gripping arm 23 to further reduce the influence.

The adjusting mechanism 50 comprises an adjusting member 51 and a fixing screw 52. The adjusting member 51 is bent at a right angle in order to attach both ends of a vertical plate material to the respective side surfaces of the gripping arm 23, and has an elongated hole 51b extending vertically in the bent surfaces 51a, 51a. 51b are provided two each, and the lower end of the plate material is bent at right angles to the inward direction of the device 1 to form a bent surface 51c. The bent surface 51c is attached to the upper end surface of the gripping movable member 24 by a mounting screw. It is fixed by such as. At the same time, screw holes are provided in the respective side surfaces of the gripping arms 23, 23 in accordance with the elongated holes 51b, 51b of the adjusting member 51, respectively.

The gripping movable member 24 is provided on the lower end surface.
The adjusting member 51 to which is fixed is screwed and attached to each side surface of the gripping arms 23, 23 via the elongated holes 51b, 51b with the screws 52, and the gripping movable member 24 is , The gripping arm 2
Adjust its position in the vertical direction with respect to 3.

Note that the technology of the present invention is not limited to the technology in the above-described embodiment, but may be implemented by means of other modes that perform the same function. Various changes and additions are possible.

[0033]

As is apparent from the above description, according to the wire-shedding and stripping apparatus of the present invention, the holding section is provided with the holding and fixing member fixed to the front end of the apparatus and the swing arm of the drive mechanism.
A gripping arm fixed by a fastening member, comprising a gripping movable member fixed to the front end thereof, and since the gripping arm is made of an elastic material, regardless of the outer diameter of the covered electric wire,
It is possible to securely grip a part of the electric wire and reduce the influence of the load on the drive motor.

Further, according to the wire covering and stripping apparatus of the present invention, the gripping movable member is positioned between the gripping arm and the gripping movable member fixed to each other in the gripping portion. Adjustment mechanism that can be adjusted vertically
Since it is provided, the gripping force is adjusted according to the size of the outer diameter of the covered electric wire, and the adjusting mechanism is simple and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an electric wire covering and stripping apparatus of the present invention and showing a basic structure thereof.

FIG. 2 is a side view showing a configuration of a main part of the wire covering stripping device of FIG. 1 when a covered wire covered with an insulating material is inserted.

FIG. 3 is a side view showing the operation of the main part of the device when the coated electric wire is gripped and the tip is cut off.

FIG. 4 is a side view showing an operation of a main part of the device during peeling of a covered portion of a covered electric wire by driving a peeling cutter by a sliding mechanism.

FIG. 5 is a side view corresponding to FIG. 3, showing another embodiment of the electric wire coating and stripping apparatus of the present invention, in which a position adjusting mechanism of a gripping movable member is provided in a gripping portion of the apparatus. .

FIG. 6 is a perspective view showing the position adjusting mechanism of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electric wire coating peeling apparatus 2 Drive mechanism 4 Gripping part 5 Peeling cutter part 6 Tip cutter part 12 Oscillating arm 13 Sliding mechanism 22 Gripping and fixing members 22a, 24a Elastic member 23 Gripping arm 23a Adjusting screw (fastening screw) 23b Through hole 24 Gripping movable member 50 adjusting mechanism 51 adjusting member 51b long hole 52 fixing screw M motor W covered electric wire

Claims (5)

[Claims] A driving mechanism including a motor; a gripping portion configured to grip a part of the insulated wire to be inserted by the driving mechanism;
A tip cutter for cutting off the tip of the covered electric wire, and cutting into the covered portion of the grasped covered electric wire from the radial direction, and sliding in the longitudinal direction of the covered electric wire to peel off the covered portion on the tip side. In a wire-sheathing stripping device comprising a stripping cutter, the gripping portion is a gripping fixing member fixed to a front end of the device, and a gripping arm fixed to a swing arm of the driving mechanism by a fastening member. And a gripping movable member fixed to the armature, wherein the gripping arm is made of an elastic material. 2. The stripping apparatus according to claim 1, wherein the gripping arm is made of, for example, synthetic rubber or synthetic resin. 3. The gripping force of the gripping arm is adjusted by changing a fastening position of the gripping arm when the gripping arm is fixed to the swing arm by the fastening member. 4. The electric wire coating and peeling apparatus according to 1. 4. A surface for gripping the electric wire between the grip fixing member and the grip movable member, for example,
The electric wire covering stripping apparatus according to claim 1, wherein an elastic member made of synthetic rubber or synthetic resin is fixed. 5. An adjusting mechanism between the gripping arm and the gripping movable member, which are fixed to each other, in the gripping portion, wherein the gripping movable member can be vertically adjusted with respect to the gripping arm, The electric wire covering and stripping apparatus according to claim 1, which is disposed.