JPH0239820Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The stamping holder for molds of this invention is attached to the punch plate of a press mold and used to stamp numbers, letters, symbols, marks, etc. on processed materials. It is designed so that it can be stamped on the surface of the processed material at the same time as pressing.

In addition, the mold engraving holder of the present invention can be detached from the punch plate so that it can be replaced with another engraving holder, and the engraving can be replaced on the engraving holder, allowing only the engraving to be replaced without changing the mold. This allows a desired number, symbol, etc. to be engraved.

(Prior Art) This type of marking method includes a method in which the material is stamped at the same time when it is pressed, and a method in which the material is stamped once and then stamped in a separate process.

In the former method, numbers, symbols, etc. to be engraved are integrally formed in a protruding manner on a punch plate of a mold, and then engraved during pressing.

In the latter method, a stamp holder, which is molded separately from the punch plate, is attached to a press machine, and the holder is lowered by the press machine. shall be engraved on it.

(Problem to be solved by the invention) However, among the conventional marking methods, the former method had the following problems.

(1) Since the numbers and letters are integrally protruded from the punch plate, it is not possible to change just the numbers and letters. Therefore, if those numbers or letters become worn or damaged, or if the number or symbol to be engraved is changed to something else, the punch plate itself must be replaced. Therefore, replacement work is troublesome, and it is also uneconomical if the punch plate can still be used sufficiently.

(2) When the number of punch plates increases, it is troublesome to store and manage them, and it is also troublesome to replace the punch plates.

Among the conventional marking methods, the latter method has the following problems.

(1) The work is inefficient because it requires two steps because the stamping work is done after pressing.

(2) Preparation work for stamping is troublesome because the stamp holder must be changed to the press one by one.

(Purpose of the invention) The purpose of the invention is to eliminate various problems of conventional marking methods by making it possible to freely replace the marking holder with a punch plate.

(Means for solving the problem) As shown in FIGS. 1 to 5, the stamp holder for molds of the present invention has a case 3 in which an insertion space 2 into which two or more stamps 1 can be inserted is formed. , a holding part 4 for holding the stamp 1 inserted into the insertion space 2, a mounting part 5a for mounting the case 3 to the mold,
5b, the holding part 4 is provided in the case 3, and one of the mounting parts 5a and 5b is fixed and the other is movable, or both are movable, and the mounting part is a movable mounting part. The locking protrusions 13 are fitted into the grooves 11 and 12 of the case 3 so as to be reciprocally movable, and the bottom surface of the fixed part 20 of the movable mounting part of the mounting parts 5a and 5b protrudes outward from the case 3. 14 is formed in an upward taper from the case 3 side to the outside, and when the fixing part 20 is fixed so that the bottom surface 14 is in contact with the mold, the locking protrusion 13 comes into pressure contact with the case 3. It is characterized by being fixed.

(Function) To set the stamp 1 in the mold stamp holder shown in FIG. 4, it is sufficient to insert the stamp 1 into the insertion space 2. In this case, when the leaf spring 9 is first inserted, the locking portion 9a of the leaf spring 9 is pushed toward the lid 8 and pushed into the recess 8b formed on the inner surface of the lid 8, as shown by the imaginary line in FIG. , when the stamp 1 is pushed further, the locking part 9
a returns to its original position and fits into the concave portion 1a of the stamp 1, thereby holding the stamp 1 on the leaf spring 4.

After inserting a predetermined number of stamps 1 into the insertion space 2, the stamps 1 in the insertion space 2 are tightened from the side using the stamp fixing screws 10 to fix them.

After setting the stamp 1, move the movable attachment part of the attachment parts 5a and 5b of the stamp holder so that the fixing holes 15 of the attachment parts 5a and 5b of the stamp holder match the attachment holes of the punch plate. 15
The stamp holder may be screwed to the punch plate by inserting a fixing device such as a bolt into the case 3. In this way, the mounting portions 5a and 5b are fixed to the case 3, and there is no wobbling.

(Example) FIGS. 1 to 5 show an example of the stamping holder for a mold according to the present invention.

3 shown in these figures is a case, and this case 3 includes a board 6 and a main body 7 fixed upright on top of the board 6.
and a lid 8 attached to face the main body 7.

Further, 2 shown in the same figure is an insertion space portion into which the stamp 1 is inserted, and this insertion space portion 2 is a recessed portion 7 of the main body 7.
a and the lid 8.

4 shown in FIGS. 1 to 3 is a holding portion, and this holding portion 4 is formed of a leaf spring 9 sandwiched between the inner wall surface 7b of the main body 7 and the notch portion 8a of the lid 8. . The insertion space 2 is located above the leaf spring 9.
A locking portion 9a is formed that is curved so as to protrude inward.

The one shown in Fig. 4 has two mounting parts 5a and 5b.
One of the mounting parts 5a is fixed to the board 6,
The other mounting portion 5b is provided protruding from the side of the case 3, and the mounting portion 5b is movable back and forth in the longitudinal direction of the case 3. In this way, when attaching the holder to the punch plate, the attaching portion 5b can be attached while avoiding obstacles and obstructions on the plate.

The mounting portion 5b in FIG. 4 is arranged as shown in FIGS. 5A and 5B. That is, grooves 11 and 12 are formed in the longitudinal direction of the substrate 6 and the main body 7, and the mounting portion 5b
A locking protrusion 13 is fitted into both grooves 11 and 12 so as to be able to slide along the grooves 11 and 12.

If the attachment part 5b is made movable, there will inevitably be some looseness between it and the case 3, so when it is attached to the punch plate, the attachment part is moved to protect the engraving and engraving holder from the impact during press processing. 5b must be fixed to case 3. Therefore, in the present invention, when the attachment part 5b is attached to the punch plate, the attachment part 5b is automatically attached to the punch plate.
is fixed to case 3. In this embodiment, as shown in FIGS. 4 and 5, the bottom surface 14 of the fixing portion 20 of the mounting portion 5b is tapered upward by an angle θ toward the outside from the case 3.

As a result, when a screw (not shown) is screwed into the fixing hole 15 of the mounting part 5b and the fixing part 20 is screwed to the punch plate, the mounting part 5b slopes downward to the outside as shown in FIG. Bottom 1
The entire part 4 abuts against the punch plate. Further, the upper front surface 13a of the locking protrusion 13 is pressed against the groove 12, and the lower surface 16a of the connecting portion 16 of the mounting portion 5b is supported by the board 6, so that the mounting portion 5b is fixed to the case 3, and as a result, the case 3 does not move from the position attached to the punch plate.

The stamp holder shown in Fig. 6 has two mounting parts 5a,
5b are both protruded from the sides of the case 3, and both are slidable.

Note that 10 in FIGS. 1 and 4 is a stamp fixing screw, which is used to push the stamp 1 inserted into the insertion space 2 from the side and fix the stamp 1.

FIG. 7 shows another embodiment of the stamp holder of the present invention, in which the plate spring 9 is not used as the holding part 4, but a pin 17 and a pusher 18 are used to insert the stamp 1 into the space 2. When inserting it inside, loosen the push screw 19 inserted into the lid 8, loosen the push tool 18,
In that state, insert the stamp 1 into the insertion space 2,
When the insertion is completed, the set screw 19 is tightened and the stamp is pressed and fixed using the push tool 18. As a result, the pin 17 is engaged with the concave portion 1a of the stamp 1, and the stamp 1 is prevented from coming off.

Further, by tightening the screw 10, the stamp 1 inserted into the insertion space 2 is also tightened from the side.

(Effects of the invention) The stamp holder of the invention as described above has the following various effects.

Since it is used by attaching it to a punch plate, it can be stamped at the same time as stamping.

Since it is removably attached to the punch plate, it can be used by replacing it with other stamp holders depending on the purpose.

Even if the stamp is worn or damaged, only the stamp needs to be replaced, and there is no need to replace the punch plate itself, which is economical. It is also much easier and faster to replace the punch plate.

Even if you want to change the number or symbol to be engraved, you only need to change the engraved part that is inserted into the holder, so there is no need to remake the punch plate itself, unlike in the past. Therefore, it is very economical.

Since the holding part 4 is provided inside the case 3, the holding part does not protrude outside the case 3 and does not get in the way of putting in and taking out the stamp 1.

Since one or both of the attachment parts 5a and 5b are attached to the case 3 so as to be able to move back and forth, even if there is an obstruction on the punch plate, the attachment part can be attached while avoiding it, and there are almost no restrictions on the attachment position. I don't accept it.

Since the mounting portion 5b is fixed to the case 3 simply by fixing the reciprocally movable mounting portion 5b to the punch plate, the mounting portion 5b can be fixed to the case 3.
When the fixing parts 20 of a and 5b are screwed to the punch plate, the mounting parts 5a and 5b are attached to the case 3.
This prevents rattling and protects the engraving and holder from impact during pressing. Also, since the engraving holder does not shift, it is possible to engrave accurately in a predetermined position.

The locking protrusion 13 of the movable attachment part is slidably fitted into the grooves 11 and 12 of the case 3, and the bottom surface 14 of the fixing part 20 is tapered, so the structure is simple. Easy to put into practical use.

If the leaf spring 9 is used as the holding part 4, the stamp 1 can be fixed by simply inserting the stamp 1 into the insertion space 2, and can be removed by simply pulling out the stamp 1 with a force stronger than the pressing force of the leaf spring 9. This allows you to replace the stamp 1 with a single touch.
Replacing stamps becomes easier and faster.

[Brief explanation of the drawing]

Figure 1 is an exploded view of the stamp holder according to the present invention.
Figure 2 is an exploded explanatory view of the holding part of the holder.
FIG. 3 is a vertical side view of the holder, FIG. 4 is a perspective view showing an example of the stamp holder according to the present invention, and FIG.
The figure is a longitudinal sectional view of the holder shown in Fig. 4, A is an explanatory view of the holder before it is attached to the punch plate, B is an explanatory view of the holder with the same holder attached to the punch plate, and Fig. 6 is an explanatory view of the holder shown in the present invention. FIG. 7 is a plan view showing another example of such a stamp holder, and FIG. 7 shows still another example of the stamp holder according to the present invention, in which A is a plan view, B is a side view, and C is a longitudinal sectional view. 1 is the stamp, 2 is the insertion space, 3 is the case, 4
5a and 5b are holding parts, 11 and 12 are grooves, 13 is a locking projection, 14 is a bottom surface, and 20 is a fixing part.

Claims (1)

[Scope of utility model registration request] A case 3 having an insertion space 2 into which two or more stamps 1 can be inserted, a holding section 4 that holds the stamp 1 inserted into the insertion space 2, and a mounting section that attaches the case 3 to a mold. 5a and 5b, the holding part 4 is provided in the case 3, and one of the mounting parts 5a and 5b is fixed and the other is movable, or both are movable and movable. The locking protrusions 13 of the mounting portions are fitted into the grooves 11 and 12 of the case 3 so as to be able to reciprocate, and the fixed portions of the movable mounting portions of the mounting portions 5a and 5b protrude outward from the case 3. 2
0 is tapered upward from the case 3 side to the outside, and when the fixing portion 20 is fixed so that the bottom surface 14 is in contact with the mold, the locking protrusion 13 is attached to the case 3. An engraving holder for molds that is fixed by pressure contact.