JP3337333B2 - Wire feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire supply device capable of continuously supplying a plurality of wires drawn from a winding reel to a pressure contact device or the like.

[0002]

2. Description of the Related Art As shown in Japanese Patent Publication No. 1-19744, for example, this type of wire feeder always feeds a plurality of wires to be fed at a constant speed on the side close to a winding reel. On the side close to the pressure welding device, etc., it is configured to intermittently change the feeding speed and feed the wire. And an accumulator that keeps applying tension. This accumulator contacts a plurality of wires to be fed and pulls them by a biasing force such as a self-weight or a spring in a direction away from a reference feeding path formed by feeding means such as a drive wheel and a guide roller, It is configured to be movable with respect to the reference feeding path, and by moving according to the difference in the wire feeding speed between the upstream side and the downstream side of the installation position, a substantially constant tension is supplied to the plurality of wires at the time of feeding. They are provided so that they do not loosen.

[0003]

In the wire feeder provided with the accumulator as described above, when it is desired to add or replace a wire to be fed, a new wire is added while the drive of the wire feeder is stopped. Pull the wire out of the winding reel and drive it,
It must be extended over the guide roll and accumulator to the pressure welding device and the like. However, since the accumulator is located at a position away from the reference feed path composed of drive wheels and guide rolls, the wire must be routed greatly in order to pass the wire over the accumulator. Performing the above operation has conventionally been very complicated and troublesome. In particular, when a plurality of wires are added at one time, since these wires may be entangled when being bridged over the accumulator, the complexity of the work becomes more remarkable.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a wire supply device capable of easily performing a work of replacing or adding a wire.

[0005]

In order to achieve the above object, a wire supply device according to the present invention comprises: a feeding means capable of feeding a plurality of wires drawn from a winding reel toward a wire supply position; Contacting the wires and pulling them away from the reference feeding path of the plurality of wires constituted by the feeding means, and the difference in the wire feeding speed between the upstream side and the downstream side of the contact position with the wire. An accumulator capable of applying a substantially constant tension to a plurality of wires by moving in response to the wire supply device,
The accumulator is configured to be able to move in the tension release direction and move away from the plurality of wires beyond the reference feed path, so that the accumulator is not slackened when the accumulator moves in the tension release direction. In place of the accumulator in response to the movement of the accumulator, there is provided another accumulator movable with respect to the reference feed path, which contacts the plurality of wires and pulls them away from the reference feed path. Things.

[0006]

By adopting the above configuration, the wire supply device of the present invention can perform the operation of adding a new wire as follows. That is,
First, the accumulator is moved in a pull-releasing direction to a position beyond the reference feed path to separate the accumulator from the plurality of wires. At this time, the plurality of wires are pulled by another accumulator in a direction away from the reference feed path so that the plurality of wires do not loosen. A new wire to be added while the accumulator is separated from the plurality of wires is pulled out from the winding reel, and is extended to the wire supply position along the reference feed path without being bridged over the accumulator and other accumulators. . When the additional wires have been extended, the separated accumulators are again moved in the pulling direction to contact the existing and newly installed wires and to pull them away from the reference feed path, thereby causing them to move. A substantially constant tension is applied. Other accumulators may be separated from the plurality of wires that are brought into contact when the accumulator is reset.

[0007] As described above, according to the wire supply device of the present invention, when adding a new wire, it is not necessary to bridge the wire over the accumulator, so that the work of replacing or adding a wire can be performed extremely easily. As a result, the time required for replacing or adding wires can be reduced, and the production efficiency can be improved.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic configuration diagram of a wire supply device according to one embodiment of the present invention. The illustrated wire feeder,
A plurality of wires 12 respectively drawn from a plurality of winding rolls 10 installed on the left side in the figure are supplied to a connector pressure welding device (not shown) installed on the right side in the figure.
A drive wheel 14 for feeding the wire 12 at a substantially constant speed, a main accumulator 16 for applying a substantially constant tension to each wire 12, and a main accumulator 16 instead of the main accumulator 16 when a new wire is added or a wire is replaced. Wire 12
A sub-accumulator 18 for applying tension to the motor and a guide roller 20 are provided. In addition, the wire supply device further includes a connecting means 22 for connecting the ends of the wires when the wires are added, and a correction device (not shown) for correcting a twist or the like of each wire 12 pulled out from the winding roll 12. Means are also provided.

The wires 12 are arranged at predetermined intervals in a direction perpendicular to the drawing. A wire position regulating member for maintaining the interval between the wires 12 at the time of wire feeding is provided in the wire feeding device.
24 are provided at predetermined intervals and the drive wheel
On the outer peripheral surface of the main accumulator 14 and the main accumulator 16, grooves (not shown) are formed at predetermined intervals in parallel so as to maintain the interval between the wires 12.

The drive wheel 14 is configured to be rotatable in clockwise and counterclockwise directions, respectively.
Can be sent to the right or left in the figure. The main accumulator 16 is configured to be able to move up and down, and a reference feed path of each wire 12 (feeding each wire 12 without passing through the main accumulator 16) is configured by feeding means such as a drive wheel 14 and a guide roller 20. In this case, it is possible to approach or move away from the reference feed path below the linear feed path (in this case) or to move upward beyond the reference feed path. More specifically, as shown in FIG. 2 showing the detailed configuration of the main accumulator, a main accumulator 18 is provided with a slider 28 that is vertically movable along a vertically extending guide rod 26.
A substrate supported rotatably about 90 degrees about the rotation shaft 30
32, is rotatably supported by the guide rod 26 by its own weight, and is moved upward beyond the reference feed path by driving means (not shown), and is mounted on the substrate 32. When the lever 34 is manually operated, it can be retracted from a position directly above each wire 12. Note that the main accumulator 18 may be automatically rotated by an actuator or the like. On the other hand, the sub accumulator 18 is also configured to be able to move up and down from the upper position to the lower position of the reference feeding path.

Each wire 12 is fed by a drive wheel 14 at a substantially constant speed to the right in the figure, and the distal end of the wire 12 is moved by a movable chuck 36 provided on the press-contacting device side and movable in the left and right directions in the figure. The main accumulator 16 is pulled downward by the main accumulator 16 in a direction away from the reference feeding path. By ascending and descending according to the difference from the feeding speed by 14, a substantially constant tension is always applied during feeding.

Next, referring to FIGS. 3 to 11, when a wire to be supplied is added or a set wire is replaced with another wire having a different core diameter or a different color of a covering cover, etc. The operation of will be described. 3 to 11 are explanatory views showing the operation of the wire supply device at the time of adding or replacing a wire.

First, as shown in FIG.
14 and the movable chuck 36 stop driving, and each wire 12
Stop feeding. The sub accumulator 18 is configured to be able to rotate around the rotation shaft 38 when being at the position above the reference feeding path and to be retracted from a position directly above each wire 12 as in the case of the main accumulator 16 described above. Usually, as shown in FIG. 3, the wire 12 is retracted from a position directly above each wire 12.

Next, as shown in FIG.
Rotates counterclockwise. At this time, the tip of each wire 12 is gripped by the movable chuck 36, and the main accumulator 16 applies tension to each wire 12 by the force received from each wire 12 sent to the left by the rotation of the drive wheel 14. It rises while rotating. In synchronization with this, the sub-accumulator 18 moves to a position immediately above each wire 12 and then descends, contacts the respective wires 12 from above at a position opposite to the main accumulator 16 with respect to the drive wheel 14, and furthermore, Each wire 18 is pulled downward by its own weight in response to the rise of the main accumulator 16, and continues to descend while rotating while applying tension to them.

The main accumulator 16 raised by the rotation of the drive wheel 14 is moved to a position shown in FIG. 5 and then moved by the driving means to a position above the reference feed path as shown in FIG. As shown in FIG. 7, the wire 12 is manually rotated about the rotation shaft 30 and retracted from a position directly above each wire 12. The drive wheel 14 stops driving when the main accumulator 16 is separated from each wire 12.

With the main accumulator 16 retracted from a position directly above each wire 12, an additional wire 12A is set. This additional set of wires 12A is wound reel
It is performed by extending the wire 12A drawn from 10 substantially linearly along the reference feed path without bridging over the sub-accumulator 18 and the main accumulator 16, so that it can be performed extremely easily and in a short time. Become.

When replacing the wire 12A with another wire 12 already set, instead of simply adding the wire 12A, the unnecessary wire 12 is cut off at its tip and rewound on the winding reel 10. After that, the wire 12A is set in the same manner as described above.

When the setting of the additional wire 12A is completed,
After the main accumulator 16 is manually returned to the position directly above the wires 12 and 12A as shown in FIG. 8, the main accumulator 16 is lowered by the driving means and comes into contact with the wires 12 and 12A from above as shown in FIG. Further, each wire 12, 12A is pulled downward by its own weight, and tension is applied to these wires. When the main accumulator 16 comes into contact with each of the wires 12, 12A, the drive wheel 14 rotates clockwise.
Due to the force received from each wire 12 sent to the right by the rotation of 14, the sub-accumulator 18
The main accumulator 16 descends while applying tension to each of the wires 12 and 12A by its own weight in accordance with the rise of the sub-accumulator 18, while applying tension to the wire 12 and rotating.

When the sub-accumulator 18 rises to a predetermined position shown in FIG. 10, the drive wheel 14 stops driving, whereby the movement of the sub-accumulator 18 and the main accumulator 16 stops. After the movement is stopped, the sub-accumulator 18 is manually or automatically separated from each wire 18 and further moved to a position above the reference feed path as shown in FIG.

After the sub-accumulator 18 is separated from each wire 12, the drive wheel 14 rotates clockwise, whereby the main accumulator 16 is lowered to the original position, and the setting of the additional wire 12A is completed. Note that the additional wire 12A is pulled out little by little from the winding reel 10 as the drive wheel 14 rotates clockwise.

Although the embodiment of the present invention has been described above, the wire feeding device of the present invention is not limited to the specific embodiment of the embodiment, and can be variously modified. Further, it is needless to say that the present invention is not limited to the one that supplies a wire to the connector press-connecting device, but can be applied to various wire supply devices.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a wire supply device according to an embodiment of the present invention.

FIG. 2 is a detailed configuration side view of the main accumulator shown in FIG.

FIG. 3 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 4 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 5 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 6 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 7 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 8 is an explanatory view showing the operation of the wire supply device when adding or replacing a wire.

FIG. 9 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 10 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

FIG. 11 is an explanatory diagram showing the operation of the wire supply device when adding or replacing a wire.

[Explanation of symbols]

 10 winding reel 12, 12A wire 14 drive wheel 16 main accumulator 18 sub accumulator 20 guide roller 36 movable chuck

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-117580 (JP, A) JP-A-61-88476 (JP, A) JP-A-4-277477 (JP, A) JP-A-63-1988 274079 (JP, A) JP 1-19744 (JP, B2) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01R 43/052

Claims (1)

(57) [Claims] 1. A feeding means capable of feeding a plurality of wires drawn from a winding reel toward a wire feeding position, and said feeding means being in contact with the plurality of wires and comprising them. By pulling in a direction away from the reference feed path of the plurality of wires and moving in accordance with the difference in the feeding speed of the wires between the upstream side and the downstream side of the contact position with the wires, the plurality of wires are substantially fixed to the plurality of wires. An accumulator capable of applying a tension of the accumulator, wherein the accumulator is configured to be able to move in the tension release direction and move away from the plurality of wires beyond the reference feed path. The accumulator is moved in accordance with the movement of the accumulator so that the plurality of wires do not loosen when the accumulator moves in the tension release direction. A wire accumulator that is movable in relation to the reference feed path and contacts the plurality of wires and pulls them away from the reference feed path in place of the accumulator. .