JP2533776Y2 - Punch holder device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a punch holder device for mounting a punch used for imprinting a product number or the like on a product, for example.

[0002]

2. Description of the Related Art As a punch holder device of this kind, a device described in, for example, Japanese Utility Model Laid-Open Publication No. Sho 62-109819 is known.

In this punch holder device, as shown in FIG. 3, a through hole 1b is provided in an intermediate portion of the punch 1 and an insertion hole 2a is provided in a side surface of the punch plate 2 facing the through hole 1b. A configuration is adopted in which the pin 6 is inserted into the hole to prevent it from falling off. Then, in order to receive the load of the punch, the backing plate 3 where the insertion end of the punch 1 is inserted into the punch plate 2 contacts the punch plate 2.
And the punch holder 4.

[0004]

However, if the backing plate 3 receives all of the load received by the punch 1, it is as intended by the designer of the conventional apparatus. Pin 6 in hole 1b
Is inserted, the load received by the punch 1 can be received by the pin 6 as well.

Therefore, when the diameter of the punch 1 itself is large to some extent, there is not much problem.
In the case of a small diameter such as a punch for imprinting a serial number, the punch 1 may be bent or broken from the portion due to the through hole 1b in the punch 1 due to the load applied to the pin 6 due to the load. Can be considered.

Further, the punch 1 requires a through hole 1b for inserting the pin 6, so that a commercially available standard punch cannot be used as it is, and special work such as drilling is required. Not only is it necessary and troublesome, but also causes an increase in cost.

In view of the above problems, the present invention provides a punch that can be used to prevent the punch from being detached from the holder without providing a through hole or the like, and that a commercially available standard punch can be used as it is. It is intended to provide a holder device.

[0008]

In order to achieve this object, in the present invention, a punch holder is provided with a punch insertion hole, and a pin hole is provided which intersects the inside of the punch insertion hole. Inserting a load receiving pin into the pin hole so that a part thereof looks into the punch insertion hole, and inserting a punch into the punch insertion hole until one end of the punch comes into contact with the load receiving pin; A punch holding bolt is screwed into a screw hole formed on the side surface of the punch to prevent the punch from coming off.

[0009]

According to the present invention, all the loads received by the punch are received by the entire punch holder via the load receiving pins which are in contact at one end, and the punch is not provided with a through-hole as in the prior art. Even when a punch having a relatively small diameter is used, the punch does not bend or break due to the load received by the punch. Further, the fact that the punch is not provided with a through-hole allows a standard product such as a commercially available straight punch to be used as it is, which is convenient.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a longitudinal sectional view of an embodiment of the present invention, and FIG.
Is also a bottom view, 10 is a punch, 20 is a punch holder, the punch holder 20 has a mounting portion 21 for mounting on a stamping machine side (not shown) on the upper side, and a rectangular section on the lower side. A punch insertion hole 22 is formed. The lower end side of the punch insertion hole 22 is open as the insertion side of the punch 10, and the inner side crosses with the pin hole 23 provided in the punch holder 20. This pin hole 23 is provided with a load receiving pin 30 which has been quenched.
Is inserted so that a part thereof looks into the punch insertion hole 22.

Further, the punch 10 is inserted into the punch insertion hole 22.
Is inserted until one end thereof contacts the load receiving pin 30.

Further, on the side of the punch holder 20,
A screw hole 24 is formed, and a punch holding bolt 40 is screwed into the screw hole 24 to prevent the punch 10 from coming off.

In the embodiment of the present invention constructed as described above, the punch 10 has an insertion side into the punch insertion hole 20 in contact with the load receiving pin 30 and the punch holder 20.
In order to adopt a configuration in which the punch holding bolt 40 is screwed into the screw hole 24 formed on the side surface of the punch 10 to prevent the punch 10 from coming off, all loads received by the punch 10 are received by the entire punch holder 20 via the load receiving pins 30. That is, since the punch 10 does not have a through hole as in the related art, even when a relatively small diameter such as a stamping stamp is used, the punch 10 is not bent or broken by the load received by the punch 10. Absent. In addition, the fact that the punch 10 is not provided with a through-hole means that a standard product such as a commercially available straight punch can be used as it is.

[0015]

According to the present invention, the punch is inserted into the punch insertion hole by contacting the load receiving pin with the load receiving pin, and further, the punch holding bolt is screwed into a screw hole formed in the side surface of the punch holder. All the loads received by the punch are received by the entire punch holder via the load receiving pins, and the punch is not provided with a through-hole as in the prior art. Even when a relatively small diameter is used, the punch is not bent or broken by the load received by the punch.
Further, the fact that the punch is not provided with a through-hole is practical because a standard product such as a commercially available straight punch can be used as it is.

Further, in the present invention, since the load received by the punch is received by the load receiving pins, a punch plate or a tightening bolt for clamping the punch is required in addition to the conventional backing plate and punch holder. Instead, the number of components is reduced, and the overall manufacturing cost is greatly reduced.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a punch holder device according to an embodiment of the present invention. FIG. 2 is also a bottom view,

FIG. 2 is a bottom view of the punch holder device according to the embodiment of the present invention, which is the same as FIG.

FIG. 3 is a longitudinal sectional view of a conventional punch holder device.

[Explanation of symbols]

 Reference Signs List 10 punch 20 punch holder 22 punch insertion hole 23 pin hole 24 screw hole 30 load receiving pin 40 punch holding bolt

Claims (1)

(57) [Scope of request for utility model registration] 1. A punch holder is provided with a punch insertion hole and a pin hole intersecting an opening with an inner side of the punch insertion hole, and a pin is partially seen through the punch insertion hole. So that a punch is inserted into the punch insertion hole until one end thereof contacts the pin, and a punch holding bolt is screwed into a screw hole formed on a side surface of the punch holder to prevent the punch from coming off. Punch holder device