JPH024742Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> This invention relates to a forming device for bending, and is particularly applicable to the peeling of plating or paint on the surface of terminals of IC components in the high technology field. It was developed with the aim of processing easily bent materials into stable bending angles without damaging them.

<Prior art> Regarding the conventional forming device for bending, the fourth
This will be explained with reference to FIG.

FIG. 4 is an example of a conventional bending forming apparatus, and is a schematic side view of one with the simplest structure.
This is done by clamping and fixing the bent material 1 between a die 2 and a presser plate 3, and punches 4, 4 that move up and down parallel to both sides of the die 2 at regular intervals. It has a structure in which both ends are bent downward in a shape (angle) formed by both side surfaces and the top surface of the die 2. The state shown in FIG. 4, that is,
The bent sides of the bent material 1 are sandwiched between both sides of the die 2 and the inner surfaces of the punches 4, 4 on both sides of the die 2 facing these, and the punches 4, 4 are placed on the surface of the bent material 1. Punch 4 with the inner surfaces still touching,
4 was being moved up and down. For this reason, "scratch" easily occurs when the bent material has a plated or painted surface that easily peels off.

In order to prevent such scratches, an improved product was developed as shown in the schematic side view of FIG. The structure of this forming apparatus is different from that of the conventional example described above, except that rollers 5, 5 are provided at the lower ends of the punches 4, 4, which roll on the curved surfaces of both sides of the bent material 1.

<Problem to be solved by the invention> However, even with the above improved product, the rollers 5, 5
Since the bending material 1 rolls in direct contact with the surface of the bending material 1, it is not possible to completely prevent the occurrence of scratches, which is not sufficient.

<Means for Solving the Problems> Therefore, in order to solve the above-mentioned problems, the present inventor conducted various studies and as a result, developed the present invention. Its features include a die 2 and a presser plate 3 that clamp and fix the bending material 1, and a punch 4 that applies bending force.
A bending tool 6 that rotates together with the bending material 1 with the inner corner part of the bending center as an axis A is provided in the forming apparatus, and the force of the punch 4 is applied through the bending tool 6. .

<Operation> With the above-described structure, the bending tool 6 is always in full contact with the bending material 1 at the same position from the start to the completion of the bending process. That is, during the bending process, the punch 4 or roller 5 does not move while touching the surface of the bending material 1, unlike in the case of conventional products.

<Examples> Examples of the present invention will be described in detail below with reference to the drawings.

Figure 1 is a schematic side view showing a state in which a bent material is being bent by the forming device of the present invention, in which a is immediately before the bending process begins, b is during the bending process, and c is during the bending process. Indicates the status of each upon completion. FIG. 2 is a schematic side view illustrating the position of the axis of the bending tool of the forming apparatus developed according to the present invention.
FIG. 3 is a perspective view showing an example of a bent product.

The features of this invention are as shown in Fig. 1.
A molding device consisting of a die 2 and a presser plate 3 for clamping and fixing the bending material 1, and a punch 4 that applies a bending force to the bending material 1 has an axis A at the inner corner of the bending center of the bending material 1. , a bending tool 6 is provided which rotates together with the bending material 1 in contact with the entire surface, and this bending tool 6
The bending force of the punch 4 is applied through the punch 4.

The die 2 is protruded from approximately the center of the die holder 8, and punch guides 9, 9 are erected near both ends of the die holder 8 on both sides of the die 2 so as to be taller than the die 2. .

The presser plate 3 is connected to a punch holder 11 by a presser spring 10, and is supported with punches 4, 4 attached to the punch holder 11 slidably sandwiching both sides of the presser plate 3. Note that since the presser plate 3 is connected to the punch holder 11 by an elastic body (presser spring 10), the punch 4
This allows the amount of sliding on both sides of the presser plate 3 to be ensured.

The punch 4 and the punch guide 9 are in a positional relationship such that the punches 4, 4 slide on the inner surfaces of the punch guides 9, 9, so the punch 4 always follows a constant vertical movement path.

The bending tools 6, 6 are in the form of arms protruding from both sides of the presser plate 3, and have axes A, A (the positions will be described later).
The punches 4, 4 are rotatably supported by the
By pushing down, the bending tool 6 rotates downward and applies a bending force to the bending material 1.

In the forming apparatus of the present invention having such a structure, as shown in figures a to c in FIG. maintain the condition. That is,
Since the punch 4 does not move while being in direct contact with the surface of the bent material, which is the case in the past,
There is no possibility of "scratch" occurring.

FIG. 2 shows a schematic side view for clearly explaining the position of the axis A of the bending tool 6. As is clear from this figure, the axis A is located within the holding plate 3 on the same horizontal line as the inner corner of the bending center of the bending material 1;
Connecting the bending tool 6 with the shaft connecting portion 7 having the same length as the thickness of the bending material 1 greatly contributed to eliminating the above-mentioned "scratch".

With the bending forming device of the present invention that has been improved in this manner, it is possible to bend the terminals of IC components as shown in FIG. 3 without causing scratches.

<Effects of the invention> As detailed above, the bending forming device of the present invention can be used to bend materials without causing scratches on the surface, even if the surface is plated or painted, etc., which easily peels off. Moreover, it can be bent at a stable angle, greatly increasing the product value.

[Brief explanation of the drawing]

In FIG. 1, a is a schematic side view showing the state of operation of the bending tool on the bent material by the present forming apparatus, FIG. FIG. 2 is a schematic side view showing the position of the axis of the bending tool. FIG. 3 is a perspective view of a bent material bent by the present forming apparatus. 4 and 5 are schematic side views showing examples of conventional bending forming apparatuses, respectively. 1. Bending material, 2. Die, 3. Holding plate, 4. Punch, 6. Bending tool, 7. Shaft connection part, 8, Die holder, 9. Punch guide, 10, Holding spring, 1
1. Punch holder, A. Axis.

Claims (1)

[Scope of utility model registration request] A bending tool 6 that rotates together with the bending material 1 with the inner corner of the bending center as an axis A is attached to a forming device consisting of a die 2 and a presser plate 3 that clamp and fix the bending material 1, and a punch 4 that applies bending force. A bending forming device characterized in that the bending forming device is configured such that the force of the punch 4 is applied via the bending tool 6.