JPS6117640B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an upper die for scraping.
More specifically, the present invention relates to an upper mold for scraping which allows setting of a large number of pins provided on the upper mold for scraping extremely easily and quickly.

The conventionally used automatic flat plate punching machine
After cutting with a predetermined cutting die, a scraper is attached that removes unnecessary parts, holes, etc. from the periphery and between the blanks. This scraping operation is performed using a scraping mold with a pin, an adjustable scraping pin, a fixed scraping pin, or the like. For example, a pin-type waste removal die is made up of a combination of an upper die (male die) with pins and a lower die (female die) that has cut out the waste. The pins of the mold press down from above, and the lower mold removes the waste by supporting the parts of the paper sheet other than the waste upwards.

Therefore, in the upper mold for scraping, it is necessary to accurately attach a large number of pins to the part of the scrap to be removed, and usually the plywood on which the pins are planted is removed from the scraping machine of the punching machine and prepared separately. Perform the pin planting work on the presetting table. Further, the upper die formed by planting the pins needs to be aligned with the lower die and attached to the scraping machine, and this series of operations requires a great deal of effort and time. Therefore, in reality, when using a so-called automatic flat plate punching machine, even if it comes with a scraping machine, the complicated and time-consuming preparation work described above is disliked, so it is difficult to use a scraping machine. few.

In addition, when using an adjustable pin or a lock pin, the preparation work is similarly time-consuming.Furthermore, if the holes to be removed are close to each other and there are a large number of holes, each hole must be It is structurally impossible to install a corresponding pin.

The present invention provides a completely new upper mold for removing scraps that eliminates the drawbacks of these conventional techniques, and its purpose is to simplify the preparation of the upper mold for removing scraps, and to To be able to set the upper die in the machine without removing it from the machine, to form a pin group that closely matches the shape of the waste portion of the punched paper sheet, and to be compatible with cutting dies of all shapes. and can be used repeatedly.

That is, the upper mold for scraping of the present invention includes a support plate with a large number of pin holes formed therein, a sliding plate with a large number of pin holes formed in positions corresponding to the pin holes of the support plate, and a head and a shaft part. and a plurality of pins each having a means in the shaft portion that is fixed by engaging with a pin hole of the sliding plate, and each of which is inserted into a corresponding pin hole of the supporting plate and the sliding plate. It is what it is.

The present invention will be explained in more detail below with reference to embodiments shown in the accompanying drawings.

FIG. 1 is an overall perspective view of an embodiment of an upper die for scraping according to the present invention, and FIG. 2 is a partially enlarged longitudinal sectional view thereof.

The upper mold 1 for scraping includes a support plate 3, a sliding plate 4, and a large number of pins 5. It is desirable that the pins 5 whose heads are exposed on the upper surface 2 of the upper mold 1 shown in FIG. The arrangement may be oblique, orthogonal, or some other arrangement.

A large number of pin holes 6 are formed in the support plate 3, and the diameter of the pin holes 6 only needs to be such that the pins 5 can be moved up and down freely.

A sliding plate 4 is slidably mounted on the upper surface of the support plate 3. It is desirable that the pin hole 7 of the sliding plate be formed at the same position as the pin hole 6 of the support plate 3, and that the shape and size of the pin hole 7 be substantially the same as that of the pin hole 6.

The support plate 3 needs to be made of a material that does not bend under the weight of the support plate itself, the sliding plate 4, and the large number of pins 5, and in which pin holes can be easily formed, for example, about 15 m long. /m thick plywood is used. It is also optional to support the mounting frame of the scraping machine using an appropriate frame, support screws, etc.

Next, the sliding plate 4 is moved in the direction of arrow A as shown in FIG.
The peripheral edge of the pin 5 is engaged with the circumferential groove 9 of the pin 5, and is used to regulate the vertical position of the pin 5. Therefore, any material can be used as long as it can support the pin 5 at the periphery of the pin hole 7, and may be made of a metal plate having a thickness of 1 to 1.5 m/m, for example.

The pin 5 has a nail-like overall shape, and has a head 10.
The diameter of the shaft portion 11 is larger than that of the pin holes 6 and 7, and the diameter of the shaft portion 11 is slightly smaller than the diameter of the pin holes 6 and 7. Note that two circumferential grooves 9 are formed in the shaft portion 11. The circumferential edge of the pin hole 7 of the sliding plate 4 engages with this circumferential groove 9 when setting the pin.
The width of the circumferential groove 9 is slightly larger than the thickness of the sliding plate 4, and since it is shifted from the set position by the thickness of the paper 14 in the direction of arrow B in FIG. 3 during scrap removal, the lower side The width of the circumferential groove 9 is increased accordingly.

FIG. 4 shows a second embodiment of the present invention.

In this embodiment, the support plate 3 is divided into a lower plate 3a and an upper plate 3b, the diameter of the pin hole 6b of the upper plate 3b is larger than the diameter of the pin hole 6a of the lower plate 3a, and the head of the pin 5 10 can be received into the pin hole 6b. By adopting such a configuration, the rigidity of the upper die 1 itself for scrap removal can be increased and deflection can be reduced.

FIG. 5 shows a third embodiment of the upper die for scraping of the present invention. That is, in the second embodiment, the support plate has a two-layer structure, but in this embodiment, the diameters of the pin holes 6a and 6b in the lower plate 3a and the upper plate 3b are made equal to each other. By doing this, the area of the pin hole 6b of the upper plate 3b is reduced, making the upper plate 3b stronger, and the pin holes of both plates have the same diameter, making it easier to manufacture. become. Note that above the circumferential groove 9 above the pin 5,
A shaft portion 11a is formed to correspond to the thickness of the upper plate 3b.

The method for setting the upper mold for scraping of the present invention will be explained below with reference to the embodiment shown in FIGS. 2 and 3.

In the drawings, reference numeral 12 indicates a lower die for scraping, and reference numeral 13 indicates a hole in the lower die 12. This lower mold 12 is similar to that used conventionally.

First, when the upper mold 1 and the lower mold 12 for scrap removal are attached to the scrap removal machine and the upper mold 1 is lowered, the state as shown in FIG. 2 is obtained. That is, lower mold 1
In the area where the plate No. 2 is present, the pin 5 is lifted by the lower die 12 and becomes in a state like the pin 5 on the left side of FIG. On the other hand, in the hole 13 of the lower mold 12, the peripheral part, the part between the blanks, etc., the lower mold 1
Since plate 2 is not present, pin 5 descends through pin holes 6 and 7, resulting in a position similar to pin 5 on the right side of FIG. In this state, when the sliding plate 4 is moved in the direction of arrow A in FIG. The vertical position of 5 is regulated, resulting in a state as shown in FIG. In this state, the supporting plate 3 and the sliding plate 4 are fixed to each other with fixing screws (not shown) or the like, thereby completing the setting of the upper mold for scraping.

In the second and third embodiments shown in FIGS. 4 and 5, the upper mold can be set in the same manner, and after using the mold, loosen the fixing screws and remove the pins. By opening 5 and performing the above-described operation again, it is possible to form an upper mold that matches another lower mold for scraping extremely easily and quickly.

When the upper mold 1 for scrap removal set as described above is brought close to the lower mold, the holes 1 of the lower mold 12 are removed.
Pin 5 in position 3 (pin on the right side of Figure 3) is
Since it is in the lowered position, the hole 14a of the paper 14 is pushed down and separated. On the other hand, since the pin 5 (the pin on the left side of FIG. 3) in the blank part of the paper 14 is in the raised position, it is only lifted in the direction of arrow B by the thickness of the paper 14 from the set position, and the lower die 12 and the paper 14 will not collide.

As described above, the upper mold for scraping of the present invention has a simple structure, is extremely easy to set and release, and pins can be closely planted, so it is useful for scraping operations. be.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view of an embodiment of the present invention, FIG. 2 is a partially enlarged vertical cross-sectional view of the same embodiment, FIG. 3 is a partially enlarged longitudinal cross-sectional view of the same embodiment after setting has been completed, and FIG. 5 and 5 are partially enlarged vertical cross-sectional views of other embodiments, respectively. 1... Upper mold for scraping; 3... Support plate; 3a...
...Lower plate; 3b...Top plate; 4...Sliding plate; 5...Pin; 6, 6a, 6b, 7...Pin hole; 9...Peripheral groove; 10...Head; 11, 11a... ...Shaft; 12
...lower mold.

Claims (1)

[Scope of Claims] 1. A support plate 3 in which a large number of pin holes 6 are formed, a sliding plate 4 in which a large number of pin holes 7 are formed in positions corresponding to the pin holes 6 of the support plate 3, and a head 10. and shaft part 1
1, and has two upper and lower circumferential grooves 9 on the shaft portion 11 that engage with the edges of the pin holes 6 of the sliding plate 4, and the supporting plate 3 and the sliding plate 4 correspond to each other. An upper mold 1 for removing scraps consists of a large number of pin holes 5 inserted into pin holes 6 and 7, respectively. 2. The support plate 3 is composed of an upper plate 3b and a lower plate 3a, and the sliding plate 4 is slidably inserted between the upper plate 3b and the lower plate 3a. Upper mold 1 for removing scraps as described. 3 The diameters of the pin holes 6 and 7 of the upper plate 3b, lower plate 3a, and sliding plate 4 are approximately the same, and the pin holes 6 and 7 of the upper plate 3b, the lower plate 3a, and the sliding plate
The diameter of the head 10 of the pin 5 is larger than the diameter of each of the pin holes 6 and 7, and the diameter of the shaft portion 11 of the pin 5 is slightly smaller than the diameter of each of the pin holes 6 and 7. The upper mold 1 for removing scraps according to item 2. 4 Pin holes 6a in the lower plate 3a and sliding plate 4,
7 have almost the same diameter, and the pin hole 6 of the upper plate 3b
The upper die 1 for scraping according to claim 2, wherein the diameter of b is larger than the diameter of the head 10 of the pin 5.