JP2736275B2 - Press equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a press device capable of supplying a wire such as a silver wire into a mold for attaching a contact to a material such as a conductor plate to be pressed. It is about.

[Prior Art] Conventionally, as a press device capable of supplying a wire such as a silver wire into a mold for attaching a contact to a conductor plate to be pressed, there is a press device in which a wire supply unit is incorporated in a mold. . FIG. 7 shows this wire feed unit. The wire feed unit slides the unit 2 while compressing the coil spring 3 by the slide of the presser bar 1. At this time, the feed claws 4 bite into the wire 5. The wire 5 is fed into the mold while holding the wire 5.

[Problems to be Solved by the Invention] In this press apparatus, the feed speed is limited due to the slide of the presser bar 1, and furthermore, since the wire 5 is bitten into the feed claw 4, the tip of the feed claw 4 wears out. There is a problem in that the biting of the wire 5 is lost, and as a result, the wire 5 cannot be held, resulting in a feed error and poor feed accuracy.

In addition, there is a problem that the running claw becomes a consumable due to the wear of the feeding claw 4 and the running cost is high.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a press device capable of increasing the speed of wire supply, improving feed accuracy, and reducing running costs.

[Means for solving the problem]

In the present invention, in order to achieve the above-mentioned object, a feed roller for feeding a wire introduced by a guide penetrating the press crown from above the outside of the press crown into the mold ram is provided between the press crown and the mold ram. In the mold ram, a spline shaft having a guide hole for guiding the wire fed by the feed roller is buried through the center axis, and the spline shaft guide is inserted into a mold die set inserted below the mold ram. A wire guide pin is provided to communicate with the lower end of the hole.

[Action] In the press apparatus of the present invention, the wire can be fed into the mold at high speed without bending by the feed roller, the guide hole of the spline shaft, and the wire guide pin of the die set. Since there are no feeding jaws, consumables are eliminated and running costs are reduced, and the die set need only be provided with wire guide pins.

EXAMPLES The present invention will be described below with reference to examples.

FIG. 1 shows a front view and a side view of the entire external view of the press apparatus of the present invention, and a wire 5 such as a silver wire wound on a winding drum 6 is placed from above a press crown 7 of the press apparatus. A guide 8 for guiding the wire 5 through the press crown 7 is provided in the second section.
It is provided as shown in FIG.

A feed roller is provided between the press crown 7 and the mold ram 9.
A wire feeder A composed of 10 or the like is arranged, and the wire 5 is fed by the feed roller 10.

A spline shaft 11 is vertically inserted through the mold ram 9 from the upper surface to the lower surface.
The lower end of the guide 8 of the press crown 7 is communicatively opposed to the upper end of the guide hole 12 penetrating vertically through the center of 11, and the wire 5 sent through the guide 8 passes through the guide hole 12 of the spline shaft 11. Then, it is sent out to the upper die set 13 inserted below the die ram 9.

As shown in FIGS. 4 (a) to 4 (d), a coil spring 14 is inserted into the outer periphery of the upper part of the spline shaft 11, and the coil spring 14 has a flange 11a formed on the central outer periphery of the spline shaft 11, and An inward flange formed on the inner periphery of the opening at the upper end of the penetration hole 15 through which the spline shaft 11 is inserted.
The spline shaft 11 is always urged downward by the coil spring 14 so that the lower end of the spline shaft 11 protrudes downward from the lower surface of the mold ram 9.

The upper die set 13 has a spline shaft 11 at the upper end.
Wire guide pin 16 formed with a wide-diameter part to contact the lower end of
Is inserted so that the upper die set 13 can move up and down, and the upper end of this wire guide pin 16 is
The die positioning boss 17 provided on the upper part of the die 13 and the die upper die set 13 are arranged in a wide-diameter hole 18 which communicates therewith.

Here, the insertion of the upper die set 13, the movement of the mold ram 9, and the movement of the spline shaft 11 are shown in FIGS.
This will be described with reference to FIG.

First, the mold ram 9 is lifted to the top dead center as shown in FIG. 4A, and the upper die set 13 is lifted up by a die lifter (not shown). In this state, the lower end of the spline shaft 11 and the die set 13
The upper end of the wire guide pin 16 is not opposed to the upper end of the wire guide pin 16, and the lower end of the spline shaft 11 is located below the upper end position of the wire guide pin 16. It is located at the same height as the upper end opening surface.

When the upper die set 13 is moved in the direction of the arrow in this state, the lower end of the spline shaft 11 is pushed up along the tapered surface 17a formed on the upper peripheral edge of the die positioning boss 17, and the die positioning is performed. Sometimes, as shown in FIG. 4 (b), the lower end of the spline shaft 11 is a wire guide pin.
The wire guide pin 16 is pressed downward by elastic contact with the upper end of the wire guide pin 16.

After the completion of the positioning, the die lifter is lowered as shown in FIG. 4 (c), and the die ram 9 is lowered to the bottom dead center to perform die clamping. Fig. 4 (d)
Shows a state in which the mold ram 9 is lifted to the top dead center again after the mold clamp.

As described above, the guide hole 16a of the wire rod guide pin 16 and the guide hole 1 of the spline shaft 11 are
Thus, the wire 5 can be fed into the mold by the feed roller 10.

At this time, the wire 5 is inserted into the guide hole 1 of the spline shaft 11.
2. Since it is guided by the guide hole 16a of the wire guide pin 16, it is not bent, and as a result, it can be sent at a high speed.

As shown in FIG. 5 (a), the wire 5 sent into the mold is inserted into the hole 18a of the cutter 18 with a tip having a predetermined length, and the
As shown in FIG. 6 (b), the piece 5a is cut each time it slides in the direction of the arrow as shown in FIG. 6 (b). As shown in FIG. 6 (b), it is inserted into the insertion hole 19a formed in the hole and subjected to processing such as caulking.

[Effect of the Invention] The present invention provides a feed roller between a press crown and a mold ram for feeding a wire introduced by a guide penetrating the press crown from above the outside of the press crown into the mold ram. A guide hole for guiding a wire fed by the feed roller is buried in the center of the spline shaft, and a lower end of the guide hole of the spline shaft communicates with a die set which is inserted below the die ram. Since the wire guide pin is provided, the wire can be fed into the mold at a high speed without bending the wire by the feed roller, the guide hole of the spline shaft, and the wire guide pin of the die set. Since there are no special feed claws, consumables are eliminated and running costs are reduced. There is an effect that only a guide pin is required.

[Brief description of the drawings]

1 (a) and 1 (b) are a front view and a side view of an embodiment of the present invention, FIG. 2 is an enlarged side view of an essential part of the embodiment, FIG. The figure is an explanatory view of the same mold insertion process,
FIG. 5 is an explanatory view of a wire cutting step of the above, FIG. 6 is an explanatory view of a material inserting step of the above cut wire, and FIG. 7 is a schematic configuration diagram of a conventional wire feeding unit. 5 is a wire rod, 7 is a press crown, 9 is a mold ram, 10 is a feed roller, 11 is a spline shaft, 12 is a guide hole, 13
Is a die set on a mold, 14 is a coil spring, 16 is a wire guide pin, and 16a is a guide hole.

Continuing on the front page (72) Kunio Okuno, 1048 Kadoma, Kazuma, Osaka Prefecture Inside Matsushita Electric Works Co., Ltd.

Claims (1)

(57) [Claims] A feed roller for feeding a wire introduced by a guide penetrating the press crown from above the outside of the press crown into the mold ram is provided between the press crown and the mold ram. A wire guide for embedding a spline shaft penetrating a guide hole for guiding a wire fed by the feed roller around a central axis and communicating with a lower end of the guide hole of the spline shaft in a die set inserted below the die ram. A press device comprising a pin.