JPS6035840B2 - Lead wire cutting device for parts inserted into the board - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention applies to
This invention relates to a lead wire cutting device for parts inserted into a board, which bends the part of the board exposed on the back side of the board to such an extent that the part does not come off the board, and cuts it to an appropriate length.

Structure of conventional example and its problems In the conventional lead wire cutting device, for example, as shown in FIG. 1, after inserting the lead wires 3 and 4 of the component 2 into the board 1,
, 6 are rotated to sandwich the lead wires 3 and 4 between the upper surfaces of the fixed blade 7, and after cutting, the lead wires 3 and 4 are bent.

In such cases of cutting and bending, the condition of the movable blade 5 during cutting and bending is due to factors such as the elongation of the lead wires 3 and 4 and the clearance between the movable blades 5 and 6 and the fixed blade 7. , 6 cannot be cut unless it overlaps the fixed blade 7 considerably,
Since the lead wires 3 and 4 are bent at the upper surfaces of the movable blades 5 and 6, it is difficult to reduce the amount of bending. Therefore, there is a problem in that when parts are later attached to the back surface of the board 1 between the lead wires 3 and 4, the space becomes narrow. In addition, since the movable blades 3 and 4 are above the fixed blade 7 and close to the board 1, if another component 2a is already inserted near the position where the component 2 is to be inserted, the movable blade 5 , 6 correspond to the lead wire 2b of the component 2a, and the lead wire 2b
In some cases, the IJ-wire 3 of the part 2 was bent and could not be cut. Therefore, there was a problem that components could not be mounted on the board 1 in a dense manner. OBJECTS OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and provides a lead wire cutting device capable of cutting lead wires even when components are closely mounted on a board.

Structure of the Invention The lead wire cutting device of the present invention has a fixed upper blade inserted between a pair of lead wires of a component inserted into a board, and a lower surface of the fixed upper blade and an upper surface of the movable lower blade on both sides of the pair of lead wires. A pair of movable lower blades are rotatably provided to cut the lead wire.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 3 and 4. FIG.

As shown in FIG. 3, a fixed blade 9 is attached to the upper part of the base 8.

It also has movable blades 12 and 13 attached by pins 10 and 11 so as to be freely retractable, and the movable blades 12 and 13 are urged away from the fixed blade 9 by an elastic body 141. One end of the movable blades 12 and 13 is an air sill 15
It is in contact with the tip slope portion 16 of. Now air cylinder 1
6 is activated, the movable blades 12 and 13 are spread, and as a result, the lead wires 18 and 19 of the component 17 inserted into the board 26 are bent by the movable lower blades 20 and 21 of the movable blades 12 and 13,
The cutting is performed by assisting the fixed upper blades 22 and 23 of the fixed blade 9. Note that, at this time, even if the already inserted component 17a is close to the component 17, the movable blade 12 has a gap with the board 26 and will not come into contact with the lead wire 17b. When cutting, as shown in FIG. 4, the amount of bending of the lead wire 18 is such that the distance between the fixed upper blades 22 and 23 of the fixed blade 9 is slightly smaller than the distance between the plurality of lead wires 18 and 19 of the component 17. ing. Furthermore, the fixed blade 9 is connected to the movable blades 12 and 1.
3, and the fixed blade 9 of the lead wires 18, 19 is cut by the lower surface of the fixed upper blades 22, 23 of the fixed blade 9 and the upper surface of the movable lower blades 20, 21 of the movable blades 12, 13. The fixed upper blades 22, 23 of the fixed blade 9 are in contact with each other and the amount of bending is limited.
It cannot be folded inward beyond the position of . Effects of the Invention The present invention has the above-mentioned configuration, and can reduce bending of the lead wire and cut it to a predetermined length.Also, even if other parts are close to each other, it is easy to insert the component and cut the lead wire. It can be cut, which makes it extremely effective when mounting components on a board in a dense manner.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram of a lead wire cutting device for a subordinate lead wire, Fig. 2 is a sectional view of a main part showing the state at the time of cutting and bending, and Fig. 3 is a cross section of a lead wire cutting device in an embodiment of the present invention. FIG. 4 is a sectional view of the main part showing the state at the time of cutting and bending. 9... Fixed blade, 12, 13... Movable blade, 2
6... Board, 18, 19... Lead wire, 2
0, 21...Movable lower blade, 22, 23...
・Fixed upper blade. Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] 1 A pair of lead wires are installed on both sides of the fixed upper blade inserted between the pair of lead wires of the component inserted into the board so that the pair of lead wires are cut by the lower surface of the fixed upper blade and the upper surface of the movable lower blade. A lead wire cutting device for parts inserted into a board, characterized in that a movable lower blade is rotatably provided.