KR100641336B1 - Cutting knife plate for press machine - Google Patents

Abstract

A cutting knife mold for a press machine is provided to easily correct the height of a cutter knife by permitting a PVC(PolyVinyl Chloride) plate where a cutter blade is buried and a metal plate to be separated from each other at any time. A cutting knife mold(100) for a press machine, comprises a metal plate(120); a PVC plate(110) stacked onto the metal plate in such a manner that the PVC plate is removable; and a cutter blade(130) buried into the PVC plate. The metal plate has a thickness which permits the total thickness of the metal plate and the PVC plate obtained when the metal plate and the PVC plate are overlapped with each other, to be the same as the thickness of a wooden mold.

Description

Cutting knife plate for press machine}

1 is a view showing a press process using a knife mold,

2 is a view showing a knife mold structure conventionally employed,

3 is a view showing another conventional type of knife die structure,

4 is a view showing a knife mold structure according to the present invention,

5 and 6 are views showing a press process and a blade height deviation correction process using the knife mold shown in FIG.

7 and 8 are views showing the shape of the recess formed in the metal plate according to the present invention.

<Description of the symbols for the main parts of the drawings>

100 ... sword mold 110 ... PVC plate

120 metal plate 121: positioning projection

122: free groove

130 ... blade 140 ... tape

1. Utility Model Registration No. 20-0392489 (2005.08.17.Registration Announcement): It is not possible to damage the hole processing part formed integrally by forming the hole processing blade which protrudes integrally on the upper side of the hole processing part for processing the hole of the workpiece. The die can be used many times, and the side discharge punch is formed to be inclined from one side to the other so that the chip is not accumulated and is easily discharged, thereby preventing damage to the hole cutting blade due to the accumulation of the chip. It relates to a wooden structure provided with a side discharge punch.

2. Utility Model Registration No. 20-0383866 (2005.05.10. Registered notification): Since the cutting part protruding on the upper surface of the base is integrated, the process of fixing the blade to the base is unnecessary and the workpiece can be cut at all times. In addition, by cutting the workpiece of various shapes to the base to cut the workpiece of various shapes, by providing a chip discharge hole in which the chip of the workpiece is discharged inside the base to continuously process the workpiece to increase productivity It relates to a cutting die formed integrally with a blade that can be improved.

3. Patent Registration No. 10-0360212 (Registration No. 2002.11.11): A high heat supply line is arranged in a longitudinal direction adjacent to both sides of a normal bending knife formed on a fixed plate of a mold part, and the high heat supply line is bent as described above. Provided is a method of processing a synthetic resin sheet and a device suitable for the processing method, wherein the knife and the fixing plate are firmly adhered and supported to form a bent portion by pressurizing the raw material sheet.

4. Utility Model Registration No. 20-0277407 (2002.06.03.Registration Announcement): It consists of inner blade part, outer blade part, and extracting part, and the processed part or molding in the form of round bar, angle bar, angular, annular, hemispherical shape Round bar, angle bar, square, round shape that are suitable for complex and precise products such as complete knife, extract, half knife, complete knife, and extract through the bottom jig plate processed with attached wood mold and extract part. Extraction is possible automatically by the hemispherical workpiece or molding and the lower jig plate.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press die for use in cutting a semiconductor sheet or insulating paper into a desired shape in a press machine, and more particularly, to a press die for improved convenience of assembling a blade and correcting a deviation.

In general, when cutting a semiconductor interlayer paper or insulating paper, as shown in Figure 1, the knife mold 10 is placed on the fixing table 1 of the press, and the material (4) to be cut thereon, and then the lifting table ( The press method which floats a pattern on the raw material 4 by pressing with the crimping pad 3 of 2) is usually used.

Here, the knife mold 10 is a member in which the blade 11 is planted on a wooden board 12 having a predetermined constant thickness (height), and the blade side used for cutting protrudes, and the opposite side is a wooden board. It penetrates to form the same plane as the back surface of the wooden board. That is, since the buried in the state penetrating the wooden board 12 as shown in Figure 2 it can be seen the position of the respective blade 11 in the back of the wooden board. The reason why the position of the blade 11 is buried so that the position of the blade 11 can be seen from the back side is for easy deviation correction during cutting. That is, while cutting, one of the cutting was good due to the deviation of the height of the blade 11, the pressing force of the pressing pad 3 to be pressed, etc. This often happens. To solve this problem, a tape is attached to the back of the blade 11, that is, the wood board 12, which is not cut cleanly, so that the deviation is corrected by raising the height. However, at this time, because the position of the blade should be able to know, so that the blade (11) to be buried through so that you can see from the back.

However, in such a structure, since the blade 11 must be embedded through the wooden board 12 as described above, there is a disadvantage that the height of the blade 11 must be considerably higher. Typically, the blade 11 of the knife mold 10 is bent and planted in a variety of shapes, when the height is so high that bending work becomes very difficult. In other words, if the height is low, it does not take much power to bend, but if it is high enough to penetrate the wood board 12, it is very difficult to make a polygonal shape that must be continuously bent at short intervals. However, if the thickness of the wooden board 12 is reduced, the rigidity is weakened, but since the thickness t of the knife mold 10 is standardized to a certain thickness in the press, compatibility is lost. In addition, since the wood board 12 is easily affected by moisture and contracts and expands, when the wood board 12 is in a humid environment, there is a high risk of deformation to be unsuitable for use.

In order to solve this problem, conventionally, as shown in Figure 3, the PVC plate 21, the acrylic plate 22, and the wooden board 23 is integrally laminated to match the overall thickness, the blade 24 is a PVC plate A knife mold 20 made to be embedded only in 21 has been proposed and is commonly used in the industry. In this case, the weakness of the weak wooden board 23 is compensated by the PVC plate 21 and the acrylic plate 22, and since the blade 24 is also embedded only in the PVC plate 21, the height of the blade is lowered bending processing Not only is it easy, but it is also possible to bend a precise shape.

However, this structure has the above advantages, but has a problem that it is very difficult to position the blade when the deviation is corrected. In other words, when cutting to clean the entire cutting edge 24 to correct the height of the blade (24) should be attached to the back of the wooden board 23 corresponding to the position, since the blade 24 is embedded only to the PVC plate 21, It becomes very difficult to find a location from behind

Therefore, there is a need for a new mold with a new structure that can comprehensively solve these problems.

The present invention has been made in view of the above necessity, and an object of the present invention is to provide a press die for minimizing the height of the blade so that the height deviation of the blade can be easily corrected and the bending work is also easy.

Other objects and advantages of the invention will be described below and will be appreciated by the embodiments of the invention. In addition, the objects and advantages of the invention may be realized by the means and combinations indicated in the claims.

The press knife die of the present invention for achieving the above object is made of a metal plate, a PVC plate detachably stacked on the metal plate, and a blade which is embedded through the PVC plate, but the thickness of the metal plate It is characterized in that the thickness when the metal plate and the PVC plate is made of the same thickness as the conventional wooden die.

Here, the PVC plate and the metal plate are preferably provided with a positioning hole and a positioning protrusion which are complementary to each other.

In addition, in order to easily detach the PVC plate from the metal plate, it is more preferable that the clearance groove which is open toward the side surface is formed on the upper surface of the metal plate.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

Therefore, the embodiments described in the specification and the drawings shown in the drawings are only the most preferred embodiment of the present invention and do not represent all of the technical idea of the present invention, various modifications that can be replaced at the time of the present application It should be understood that there may be equivalents and variations.

Figure 4 shows a knife die for press according to the present invention.

As shown, the knife mold 100 of the present invention has a structure in which a polyvinyl chloride (PVC) plate 110 and an iron metal plate 120 are detachably stacked on each other. The blade 130 is embedded in the PVC plate 110. That is, the blade is embedded through the entire thick wood board as in the prior art, or is not planted in a PVC board that is integrally attached to the wood board, the blade 130 is embedded in the PVC board 110 that can be separated at any time as shown in the drawing . This structure makes it easy to taping when the height deviation of the blade 130 is corrected.

That is, if necessary, if the PVC plate 110 is separated from the metal plate 120 and turned over, the buried end of the blades 130 are visible to the naked eye, so that the tape plate 110 can be easily positioned and taped. And, if it is placed on the metal plate 120, the overall thickness can meet the standard because the thickness of the metal plate 120 is added, and also in terms of robustness can be expected because the PVC plate 110 and the metal plate 120 is supported. have.

In addition, since the blade 130 is embedded only in a very thin PVC plate 110 compared to the thick wooden board, the height of the blade 130 is lowered, so that the bending work of the blade is easy, and various shapes and precise products can be produced.

Reference numerals 111 and 121 denote positioning holes and positioning projections provided to hold the positions when the PVC plate 110 and the metal plate 120 are coupled to each other. Of course, since this is a complementary coupling structure, the positions of the hole 111 and the protrusion 121 may be reversed.

When performing a cutting operation of a predetermined pattern for the material 4 using the knife mold 100 having such a structure, first, as shown in FIG. 5, the metal plate 120 and the PVC plate 110 on the fixing stand 1 of the press machine. ) Into the combined state. Then, the material 4 is placed thereon, and the lifting platform 2 is lowered and pressed by the pressing pad 3, and the desired pattern is cut while the material 4 is cut by the blade 130.

If, at this time, if there is a part that is still not cut cleanly attached to one side, the PVC plate 110 is separated from the metal plate 120 and then turned over, and the tape 140 is attached to the bottom of the blade portion as shown in FIG. give. Then, the cutting operation is resumed by seating on the metal plate 120 again. Of course, this process is a process that undergoes trial and error, so if the cutting is not clean even if the tape 140 is attached, the PVC plate 110 is removed again and the process of adding the tape 140 is repeated a few times.

In addition, the upper surface of the metal plate is formed with a clearance groove 122 is opened toward the side, the operator can easily lift the PVC plate from the metal plate by hand. In some cases, the clearance groove 122 may be formed along an edge formed by the upper surface and the side surface of the metal plate, and the clearance groove 122 may be formed on one side or two or more sides of the metal plate.

Since the thickness of the metal plate and the PVC plate overlapping should be the same as the thickness of the conventional wooden die (21mm), considering that the thickness of the PVC plate generally used for knife mold is 5 ~ 6mm, The thickness is about 15 ~ 16mm. In addition, even if the width of the knife mold with a small width of the minimum width × length is 150mm × 150mm or more, the metal plate has a considerable weight so that the metal plate placed on the table in the press working process does not move easily. Of course, depending on the press working environment, the work may proceed in a state where the metal plate is fixed using a jig or the like.

Therefore, while maintaining the existing standard, the blade can be easily bent, the blade mold can be easily implemented to correct the height deviation of the blade.

As described above, the knife mold according to the present invention provides the following effects.

First, since the blade is embedded only in the PVC plate laminated on the metal plate, the blade height is shorter than the conventional one to facilitate bending. Therefore, it is applicable to the processing of the product of very precise shape.

Second, the blade height correction is also convenient because the embedded PVC plate and the metal plate to protect the rigidity can be separated at all times.

Third, since the rigid metal plate maintains rigidity, it is less likely to cause breakage even in a long press operation.

As mentioned above, although this invention was demonstrated by the limited embodiment and drawing, this invention is not limited by this, The person of ordinary skill in the art to which this invention belongs, Of course, various modifications and variations are possible within the scope of equivalents of the claims to be described.

Claims (4)

Metal plate, PVC plate detachably laminated on the metal plate, The blade is made to be embedded through the PVC plate, The thickness of the metal plate is a knife die for pressing, characterized in that the thickness when the metal plate and the PVC plate is made to be the same as the thickness of the conventional wooden die. The method of claim 1, The PVC plate and the metal plate is a knife die for pressing, characterized in that each of the positioning holes and the positioning projections are complementary to each other is provided. The method according to claim 1 or 2, The upper surface of the metal plate is a knife die for pressing, characterized in that the clearance groove 122 is opened toward the side. The method according to claim 1 or 2, At least one corner formed by the upper surface and the side of the metal plate is formed, the cutting die for pressing, characterized in that the clearance groove 122 is formed.

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