JP2000182448A - Rubber plug insertion device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rubber plug insertion device, capable of enhancing productivity by surely preventing errors in insertion of a rubber plug which has a large resistance to insertion into the end of a wire, the errors resulting from buckling of the wire which occurs, when the rubber plug is inserted at high speed. SOLUTION: This rubber plug insertion device includes a wire clamp 10 for clamping the position of a wire W away from an end Wa, a wire guide 12 for guiding the end Wa of the wire W, and a rubber plug holder 15 for holding the rubber plug 14, and the rubber plug 14 held by the rubber plug holder 15 can be inserted freely into the end Wa of the wire W. In this case, a buckling preventing guide 13, which holds the wire W, is provided between the wire clamp 10 and the wire guide 12. The buckling prevention guide 13 is placed at a position approximately halfway between the wire clamp 10 and the wire guide 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber plug insertion device for automatically inserting a rubber plug into an end of an electric wire.

[0002]

2. Description of the Related Art A conventional rubber plug insertion device is disclosed in Japanese Utility Model Laid-Open No. 25120/1990, and this rubber plug insertion device is disclosed in FIGS. As shown in FIG. 7, the rubber plug insertion device includes an electric wire gripping body 1 that grips a position away from the end Wa of the electric wire W, and an end Wa of the electric wire W.
And a rubber stopper holder 4 for holding the rubber stopper 3. The electric wire guide body 2 is configured to be movable in the direction of arrow a in FIG. 7, for example, against the spring force. The rubber stopper holder 4 is configured to be able to move in a forward direction (direction of arrow a in FIGS. 7 and 8) approaching the electric wire gripping body 1 and in a retreating direction (direction of arrow b in FIG. 7) which moves away from the opposite direction. Have been.

In the above configuration, when the electric wire W is supplied to the rubber plug insertion device, the electric wire W is grasped by the electric wire gripper 1 and guided by the electric wire guide body 2. Next, as shown in FIGS. 7 and 8, the rubber plug holder 4 holding the rubber plug 3 moves in the forward direction (the direction of arrow a in the drawing), and the rubber plug 3 and the end Wa of the electric wire W protrude. It will fit. When the rubber stopper holder 4 further moves in the forward direction from this state, the rubber stopper holder 4 presses the electric wire guide 2 and the electric wire guide 2
Moves in the direction of arrow a in the figure against the spring force, and the electric wire W is inserted into an electric wire insertion hole (not shown) of the rubber plug 3. And
When the rubber plug 3 is inserted into the predetermined position while the rubber plug holder 4 is pressing the wire guide 2, the rubber plug holder 4 is retracted (in the direction of the arrow b in FIG. 7), and the insertion is completed.

[0004]

However, in the conventional rubber plug insertion device, the wire guide body 2 merely guides the end Wa of the wire W, and the wire guide body 2 is inserted only with the wire gripper 1 when inserting. Of the rubber stopper 3 of FIG. Therefore, for example, when the rubber plug 3 having a large insertion resistance is inserted at a high speed, the insertion resistance to the electric wire W increases, and as shown in FIG. There is a problem that arises. In particular, when the insertion resistance of the wire W to the end Wa is large and the amount of insertion of the rubber plug 3 must be increased, the distance between the wire gripper 1 and the wire guide 2 increases, and the wire gripper 1 Is separated from the end Wa of the electric wire W, the electric wire W is easily buckled.

Accordingly, the present invention has been made to solve the above-mentioned problems, and a rubber plug having a large resistance to insertion into an end portion of the electric wire, which is caused by buckling of the electric wire when the rubber plug is inserted at a high speed, is provided. An object of the present invention is to provide a rubber plug insertion device capable of reliably preventing an insertion error and improving productivity.

[0006]

According to a first aspect of the present invention, there is provided an electric wire gripper for holding a position distant from an end of an electric wire, an electric wire guide for guiding an end of the electric wire, and a rubber stopper. A rubber stopper holder, wherein the rubber stopper held by the rubber stopper holder is freely inserted into an end of the electric wire. A buckling prevention guide body for holding the electric wire is provided.

In this rubber plug insertion device, since the buckling prevention guide body further holds the electric wire, for example, a rubber plug having a large insertion resistance into the end of the electric wire can be inserted at a high speed. Insertion mistake is prevented. Thereby, the rubber plugs are continuously inserted into the ends of the plurality of electric wires without stopping the rubber plug insertion device, thereby improving the productivity.

According to a second aspect of the present invention, there is provided the rubber plug insertion device according to the first aspect, wherein the buckling prevention guide is disposed at a substantially intermediate position between the wire gripper and the wire guide. Features.

In this rubber plug insertion device, for example, when the insertion resistance at the end of the electric wire is large and the amount of insertion must be increased, even if the distance between the electric wire gripper and the electric wire guide becomes large, The wire at a substantially intermediate position between the wire and the wire guide body is held by the buckling prevention guide body, so that a rubber plug insertion error due to the buckling of the wire is more reliably prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side view of a rubber plug insertion device according to an embodiment of the present invention, FIG. 2A is a front view of an electric wire gripping body used in the rubber plug insertion device, and FIG. FIG. 3A is an enlarged front view of a main part of the electric wire gripping body showing a state of gripping the electric wire, FIG.
FIG. 3B is a side view of the electric wire guide, FIG. 4A is a front view of the buckling prevention guide used in the rubber plug insertion device, and FIG. Side view, FIG. 5
(A) is a front view of an opened state of a rubber stopper holder used in the rubber stopper insertion device, FIG. 5 (b) is a side view of the opened state of the rubber stopper holder, and FIG. 6 is a closed state of the rubber stopper holder. It is a front view.

As shown in FIG. 1, the rubber plug insertion device includes an electric wire gripper 10 for gripping a position separated from the end Wa of the electric wire W by a predetermined distance, and an end W of the electric wire W from the electric wire gripper 10.
a wire auxiliary gripping body 11 gripping a position further away from a
And an electric wire guide body 12 for guiding the end Wa of the electric wire W
Between the wire gripper 10 and the wire guide 12
And a rubber stopper holder 15 that retains a rubber stopper 14.

As shown in FIGS. 2 (a) and 2 (b), the electric wire gripper 10 is made of a pair of elastic holding portions 16, 16 made of synthetic resin.
The electric wire W is gripped by clamping the electric wire W between the pair of elastic holding portions 16, 16. In addition, the electric wire auxiliary holding body 11 is an open / close cylinder (drive source).
Has a pair of arms (clamps) that rotate and open and close using a link from the up and down movement of the wire. The pair of arms grips the electric wire W, and the electric wire W gripped by the electric wire gripper 10 is made of rubber. The electric wire W is gripped so as not to be displaced by the insertion operation of the stopper 14.

As shown in FIGS. 3A and 3B, the electric wire guide 12 has a pair of arms 18 and 18 which are rotated by an opening / closing cylinder (drive source) 17. The pair of arms 18, 18 are in a closed position (solid line position in FIG. 3A) where the inverted V-shaped tip guides 19, 19 are substantially in contact with each other, and are inverted V-shaped tip guides 19. , 19 are displaced between the open positions (the imaginary line positions in FIG. 3 (a)) at which the distances are increased. Each of the distal end guide portions 19 has a shape depressed inward from both ends toward the center, and guides the electric wire W through a hole formed by joining the depressed shapes at the closed position. In addition, the wire guide body 12 is
Can be moved in a forward direction (direction of arrow a in FIG. 1) and a retreating direction in opposite direction (direction of arrow b in FIG. 1).

As shown in FIGS. 4A and 4B, the buckling prevention guide 13 has a pair of arms 21 and 21 which are rotated by an opening / closing cylinder (drive source) 20. The pair of arms 21 and 21 is in a closed position where the inverted V-shaped distal end guides 22 and 22 substantially contact each other (FIG. 4).
(A) (solid line position) and the opposite V-shaped tip guide portion 2
An open position where the reference numerals 2 and 22 are separated (a virtual line position in FIG. 4A).
And is to be displaced between. Each tip guide 2
Numeral 2 has a shape depressed inward from both ends toward the center. In the closed position, the wire W is held by a hole formed by joining the depressed shapes. The position where the buckling prevention guide 13 holds the electric wire W depends on the position of the electric wire gripper 10 and the electric wire guide 1.
Assuming that the distance from L2 is L, the distance is set to L / 2, which is a substantially intermediate position.

As shown in FIGS. 5A, 5B and 6, the rubber stopper holder 15 is provided with a parallel cylinder (drive source) 2
The arm 3 has a pair of arms 24, 24 that translate in parallel. The pair of arms 24, 24 are in a closed position (position shown in FIG. 5A) where the tip holders 25, 25 are substantially in contact with each other, and an open position (position shown in FIG. 6) in which the tip holders 25, 25 are separated from each other. ). Each tip holder 25 has an accommodation groove 25a for accommodating the rubber plug 14, and a pair of accommodation grooves 25a, 2 in the closed position.
The rubber stopper 14 is held by 5a, and the rubber stopper 14 can be inserted into the pair of housing grooves 25a, 25a in the open position.

Further, the rubber stopper holder 15 moves in the forward direction (the direction of the arrow a in FIG. 1) approaching the electric wire gripping body 10, and
On the other hand, it is possible to move in the retreating direction (the direction of the arrow b in FIG. 1) moving away. Further, a center positioning means (not shown) is provided at a tip portion of the rubber plug holder 15 and a rear surface portion of the wire guide body 12, so that the center positions of the electric wire W and the rubber plug 14 coincide with each other. It is configured as follows. Rubber stopper 14
Has an electric wire insertion hole (not shown) at its center.

In the above configuration, the electric wire W and the rubber stopper 14
Is supplied to the rubber plug insertion device, the wire gripper 10 grips the wire W at a position of a predetermined dimension from the end Wa of the wire W,
The rubber stopper holder 15 has a pair of receiving grooves 25a, 25a.
The rubber stopper 14 is held inside. Next, the electric wire auxiliary holding part 11
Grasps the electric wire W, and the pair of arms 18 of the electric wire guide body 12 are displaced from the open position to the closed position to guide the end Wa of the electric wire W. Next, the buckling prevention guide 1
The pair of arm members 21 and 21 are displaced from the open position to the closed position, and grip the wire W at an intermediate position between the wire gripper 10 and the wire guide body 12.

Next, the wire guide body 12 moves backward in the direction of the arrow b in FIG. 1 and stops at the position where it comes into contact with the rubber stopper holder 15. In the process of moving in the retreating direction, the electric wire W and the rubber plug 14 are centered by the center positioning means. Next, the electric wire guide body 12 and the rubber plug holder 15 are integrally moved in the forward direction of the arrow a in FIG. 1 and the insertion of the rubber plug 14 into the electric wire W is started. When the wire guide body 12 moves to a position where it comes into contact with the buckling prevention guide body 13, the pair of arms 21, 21 of the buckling prevention guide body 13 are displaced from the closed position to the open position, and the wire guide body 12 moves forward. Is acceptable. Then, the wire guide body 12 and the rubber stopper holder 15 further move in the forward direction in the direction of arrow a in FIG. 1 and stop at the predetermined insertion position.

Next, the pair of arms 18, 18, 24, 24 of the electric wire guide 12 and the rubber stopper holder 15 are respectively displaced from the closed position to the open position, and thereafter, the electric wire guide 12 and the rubber stopper holder are displaced. 15 are arrows b in FIG.
And move back to the initial position, and the insertion is completed. By repeating this insertion operation, the rubber plugs 14 are automatically inserted sequentially. Note that the outer skin of the end Wa of the electric wire W is peeled off after the rubber plug 14 is inserted.

In the process of inserting the rubber plug 14, in the first half step of inserting the rubber plug 14, the end Wa side of the electric wire W is held by the buckling prevention guide 13 further than the electric wire gripping body 10. Even if the rubber plug 14 having a large insertion resistance is inserted into the end Wa of the electric wire W at a high speed, or if the rubber plug 14 having a long insertion stroke is inserted, the electric wire W does not buckle. Accordingly, the insertion of the rubber plug 14 due to the buckling of the electric wire W does not occur, so that the mechanical stop due to the insertion error of the rubber plug 14 is eliminated, and the productivity is improved.

Further, since the position of the buckling prevention guide body 13 for holding the electric wire W is set at a substantially intermediate position between the electric wire gripper 10 and the electric wire guide body 12, the insertion of the electric wire W into the end Wa is performed. When the resistance is large and the amount of insertion must be increased, even if the distance between the wire gripper 10 and the wire guide body 12 is increased, the wire gripper 10 and the wire guide body 1 are not removed.
2 can be gripped (clamped) by the buckling prevention guide body 13, thereby making it possible to more reliably prevent the rubber plug 14 from being mistakenly inserted due to the buckling of the electric wire W, and to buckle. High prevention effect. Thereby, even if the rubber plug 14 having a large insertion resistance is inserted into the end Wa of the electric wire W at high speed, the rubber plug 14 is easily and reliably inserted into the end Wa of the electric wire W without buckling. be able to.

In the above embodiment, the buckling prevention guide 13 is provided only at one place between the wire gripper 10 and the wire guide 12, but it may be provided at a plurality of places. Further, the buckling prevention guide 13 is connected to the wire gripper 10 and the wire guide 1.
2, but may be provided at any position between the wire gripper 10 and the wire guide 12. Furthermore, although the electric wire gripping body 10 is configured using the elastic deformation returning force, any material that can grip the electric wire W may be used.

[0024]

As described above, according to the first aspect of the present invention, the buckling prevention guide is provided between the wire gripper and the wire guide to hold the wire. Since the guide body further holds the electric wire, for example, it is possible to insert the rubber plug having a large insertion resistance into the end of the electric wire at a high speed, thereby preventing the rubber plug from being erroneously inserted due to the buckling of the electric wire. Thereby, the rubber plugs can be continuously inserted into the ends of the plurality of electric wires without stopping the rubber plug insertion device, and the productivity can be improved.

According to the second aspect of the present invention, since the buckling prevention guide is disposed at a substantially intermediate position between the wire gripper and the wire guide, for example, the insertion resistance to the end of the wire is large and the insertion amount is reduced. Even when the distance between the wire gripper and the wire guide body is increased when it is necessary to increase the number of wires, the wire at a substantially intermediate position between the wire gripper and the wire guide body can be held by the buckling prevention guide body. The erroneous insertion of the rubber plug due to buckling can be more reliably prevented.

[Brief description of the drawings]

FIG. 1 is a side view of a rubber plug insertion device according to an embodiment of the present invention.

FIG. 2A is a front view of an electric wire gripper used in the rubber plug insertion device, and FIG. 2B is an enlarged front view of a main part of the electric wire gripper showing an electric wire gripping state.

FIG. 3A is a front view of an electric wire guide used in the rubber plug insertion device, and FIG. 3B is a side view of the electric wire guide.

FIG. 4A is a front view of a buckling prevention guide used in the rubber plug insertion device, and FIG. 4B is a side view of the buckling prevention guide.

FIG. 5A is a front view of a rubber plug holder used in the rubber plug insertion device in an open state, and FIG. 5B is a side view of the rubber plug holder.

FIG. 6 is a front view showing a closed state of the rubber stopper holder.

FIG. 7 is a side view of a conventional rubber plug insertion device.

FIG. 8 is an enlarged side view of a main part of the conventional rubber plug insertion device before rubber plug insertion.

FIG. 9 is an enlarged side view of a main part showing a state in which the rubber plug has buckled during the rubber plug insertion process of the conventional rubber plug insertion device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric wire gripper 12 Electric wire guide 13 Buckling prevention guide 14 Rubber stopper 15 Rubber stopper holder W Electric wire Wa end

Claims (2)

[Claims] 1. A rubber plug comprising a wire gripper for gripping a position distant from an end of an electric wire, a wire guide body for guiding an end of the electric wire, and a rubber plug holder for holding a rubber plug. In a rubber plug insertion device in which the rubber plug held by a holder can be freely inserted into an end of the electric wire, a buckling prevention guide that holds the electric wire between the electric wire gripper and the electric wire guide is provided. A rubber stopper insertion device characterized by being provided. 2. The rubber plug insertion device according to claim 1, wherein the buckling prevention guide is disposed at a substantially intermediate position between the wire gripper and the wire guide. Insertion device.