Description DIE-BOARD

Technical Field

[1] The present invention relates to a die-board, and more particularly to a die-board capable of facilitating the die-board work by reducing weight of a supporting plate by forming a plurality of weight reducing penetration holes in the supporting plate, reinforcing the supporting plate weakened by the plurality of penetration holes, by mounting a plurality of reinforcing steel frames to a surface of the supporting plate, and also capable of preventing deformation or breakage of the supporting plate. Background Art

[2] Recently, the application range of die-boards is expanding from processing of simple products, such as paper boxes or printed articles, to processing of precision products. It is known that die-boards can achieve an improvement in the productivity and quality of products compared to prior art molds, in particular, in fields of half-cutting and special-cloth cutting which are impossible with the prior art molds. Furthermore, since the die-boards have no need for a base die necessitated in the prior art molds, they have advantages of shortened production time and inexpensive manufacturing costs, and enable low-cost fabrication of samples. For these reasons, the die-boards are suitable for mass-production of multiple items as well as small-quantity production.

[3] According to prior arts, the die-board generally for cutting various materials such as an LCD film, a sealing material, an electronic name board, a gasket, a printed article, a vacuum shaped article, rubber, sponge and the like is manufactured by forcibly inserting a plurality of cutting blades according to a predetermined pattern in a supporting plate made of various materials. The die-board is compressed by a press disposed at an upper part thereof, thereby cutting a certain material into desired shapes. Here, dust is generated from an inner wall of a handle hole formed in the supporting plate and may enter a product cut by the cutting blade. In this case, an inferiority rate of the product would be increased. Additionally, fine dust generated from the handle hole may adhere to a film, the film which is an expensive material. If such a dust- adhered film is applied to a product that requires high precision, quality of the product would be deteriorated. Actually, the dust produced during the manufacturing process is occupying a great part of the causes of inferiority more and more. As a consequence, the inferiority rate is increased due to the dust during the manufacturing process, and the manufacturing cost is also increased.

[4] Furthermore, when the die-board is pressed by a press, if an upper surface of the supporting plate and a lower surface of the press are not precisely corresponded to each

other, the pressure applied by the press would not be completely transmitted to the die- board, thereby deteriorating the pressure. Therefore, in order to exert a predetermined pressure, a greater pressure needs to be applied and this may cause damage to the die- board.

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Disclosure of Invention Technical Problem

[6] Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide a die-board capable of achieving a more accurate and excellent cutting of a product by restraining deformation of cutting blades in spite of a pressure by a press, and improving the lifespan of the cutting blade.

[7] It is another object of the present invention to provide a die-board capable of transmitting the pressure of the press thereto without loss, by improving a contacting state between the press and the die-board.

[8] It is yet another object of the present invention to provide a die-board capable of preventing generation of dust during the cutting, by mounting an inner case to an inner surface of a handle hole.

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Technical Solution

[10] In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of a die-board structured by forcibly inserting a plurality of cutting blades in a supporting plate made of various materials, in which a plurality of weight reducing penetration holes are formed in the supporting plate and a plurality of supporting plate reinforcing steel frames mounted to a surface of the supporting plate.

[11] In accordance with another aspect of the present invention, there is provided a die- board formed with the penetration holes at a handle hole and blank spaces to cover an inner wall of the handle hole.

[12] In accordance with still another aspect of the present invention, there is provided a die-board capable of reducing the weight thereof by forming the handle hole and the penetration holes on the blank space such that the force exerted to a press can be minimized, and also capable of still applying an existing dustproof cap.

Advantageous Effects

[13] The die-board according to the embodiment of the present invention is capable of reducing weight of a supporting plate by including a plurality of weight reducing penetration holes in the supporting plate, and improving the work efficiency. Also, since a plurality of supporting plate reinforcing steel frames are mounted to a surface of the

supporting plate, the supporting plate weakened by the plurality of penetration holes can be reinforced, thereby preventing deformation or breakage of the supporting plate.

[14] In accordance with the die-board of the present invention being constructed by forcibly inserting a plurality of cutting blades in a supporting plate made of various materials, since a handle hole inner case is mounted inside the handle hole to cover an inner surface of the handle hole, foreign substances, that is, dust can be prevented from falling from the handle hole.

[15] In addition, penetration holes are formed on blank spaces of the die-board and dustproof caps are mounted to the penetration holes, thereby preventing generation of dust and accordingly improving precision of the process.

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Brief Description of the Drawings

[17] The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

[18] Fig. 1 is a perspective view of a die-board according to an embodiment of the present invention;

[19] Fig. 2 is an exploded perspective view of the die-board according to the embodiment of the present invention;

[20] Fig. 3 is a perspective view of the die-board with a partially enlarged view thereof;

[21] Fig. 4 is an exploded perspective view showing supporting plate reinforcing steel frames of the die-board according to the present invention;

[22] Fig. 5 is a sectional view of a die-board according to another embodiment of the present invention; and

[23] Fig. 6 is a perspective connection view illustrating the structure of the die-board according to the embodiment of the present invention.

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Best Mode for Carrying Out the Invention

[25] Hereinafter, a die-board structure according to embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[26] In the die-board structured by forcibly inserting a plurality of cutting blades in a supporting plate that can be made of various materials, a plurality of weight reducing penetration holes 30 are formed in a supporting plate 10. Additionally, a plurality of supporting plate reinforcing steel frames 40 formed in any one selected from T, L and I shapes are mounted to a surface of the supporting plate 10. As shown in Fig. 3, the supporting plate reinforcing steel frames 40 are mounted to any one of an upper surface, a lower surface, and both upper and lower surfaces of the supporting plate 10.

More particularly, the supporting plate reinforcing steel frames 40 each comprise tight- contacting grooves 44 and 44' at a lower part thereof. In the die-board mounted with the supporting plate reinforcing steel frames 40 according to this embodiment, the weight reducing penetration holes may have any one shape selected from a circle, a triangle, a square and an oval.

[27] The die-board comprises cutting blades 20 mounted to the upper surface of the supporting plate 10, and elastic members connected to the upper surface of the supporting plate 10. Referring to Fig. 1 and Fig. 2, the plurality of weight reducing penetration holes 30 formed in the supporting plate 10 mounted with the cutting blades 20 help reduce such a great weight of the supporting plate 10, thereby facilitating the die-board work. According to the embodiment, it is preferred that the weight reducing penetration holes 30 are in the form of any one selected from a circle, a triangle, a square and an oval.

[28] In the die-board comprising the cutting blades 20 mounted to the upper surface of the supporting plate 10 and the elastic member connected to the upper surface of the supporting plate 10, as shown in Fig. 1 and Fig. 2, a plurality of supporting plate reinforcing steel frames 40 having any one shape selected from T, L and I shapes are mounted to a rear surface of the supporting plate 10 mounted with the cutting blades 20. By the supporting plate reinforcing steel frames 40, the supporting plate 10 deteriorated in stiffness due to the plurality of weight reducing penetration holes 30 can be reinforced, thereby being prevented from deformation or breakage. Preferably, an insertion groove 14 is formed on the surface of the supporting plate 10 to fixedly insert therein an inserting protrusion 42 of the supporting plate reinforcing steel frame 40. Also, since a bolt hole 46 is formed at the supporting plate reinforcing steel frame 40, the supporting plate reinforcing steel frame 40 can be fixed using a bolt 50. Here, the supporting plate reinforcing steel frame 40 may have any one shape selected from T, L and I shapes and be mounted to the lower surface or both upper and lower surfaces of the supporting plate 10. By including the tight-contacting grooves 44 and 44' at the lower part, the supporting plate reinforcing steel frame 40 can be fixed to the supporting plate 10 more securely.

[29] In the die-board for cutting a product into desired shapes, the supporting plate 10 is made of various materials such as wood, acryl, synthetic resin and so on, and the cutting blades 20 are inserted in the upper surface of the supporting plate 10. Additionally, the elastic members in the form of a pad, made of polyethylene for example, are attached around the cutting blades 20 at a similar height to the cutting blades 20. Moreover, an air vent channel is preferably formed such that air existing between the die-board and a film being cut can be discharged when the upper part of the die -board is pressed by a press. Also, while the plurality of supporting plate reinforcing steel

frames 40 are mounted to the surface of the supporting plate 10, an intermediate member made of a PET film or synthetic resin may be further provided to the upper surface of the supporting plate 10 in the size capable of covering the whole upper surface of the supporting plate 10.

[30] As the press is rapidly moved down from above the film to be cut, thereby pressing the supporting plate 10 of the die-board, the cutting blades 20 on the die-board cut the film into predetermined shapes. At this time, the air compressed between the film and the cutting blades 20 is discharged through the air vent channel to upper and lower parts of the elastic member. The discharged air is further discharged to the outside of the supporting plate 10.

[31] As described above, since the plurality of supporting plate reinforcing steel frames 40 are mounted to the surface of the supporting plate 10, no vacuum spaces are generated between the film and the die -board. As a consequence, deformation of the cutting blades 20 can be reduced by almost 90%, that is, generating only an error range of 1/1000 ~ 5/1000mm. Therefore, the product can be precisely cut as placed on the supporting plate 10. Accordingly inferiority of the cut product can be minimized while reliability of the product can be improved. Furthermore, lifespan of the cutting blades 20 can be elongated. When the press presses the supporting plate 10 of the die-board, the pressure of the press can be transmitted completely through the whole surface of the die-board by the existence of the intermediate member formed on the upper surface of the supporting plate 10. Therefore, a desired pressure can be achieved by exerting less pressure than in conventional die-boards.

[32] In the die-board structure shown in Fig. 5 and Fig. 6, an inner case 30-1 is provided to the handle hole 12.

[33] The inner case 30-1 may be fixed or fused to an inner surface of the handle hole 12 so as to achieve tight contact with the inner surface.

[34] Dust may generate due to repetitive striking motions of the press and fall down to the film to be cut. However, by thus forming the inner case 30-1 at the inner surface of the handle hole 12, generation of dust from the inner surface of the handle hole 12 can be minimized or even basically prevented during the die-board work.

[35] As shown in Fig. 1 through Fig. 6, according to the embodiments of the present invention, in the die-board for cutting a product into desired shapes by pressing the upper part thereof by a press, being constructed by forcibly inserting the plurality of cutting blades 20 into predetermined desired patterns in the supporting plate 10 made of various materials in the form of a board, the plurality of weight reducing penetration holes 12 are formed in blank spaces of the supporting plate 10 not subject to the operation of the cutting blades 20 and the case 30- 1 covers inner surfaces of the weight reducing penetration holes 12.

[36] More specifically, the supporting plate 10 is formed by accumulating a plurality of thin board sheets in alternate directions and compressing the board sheets at high pressure. Various materials may be adopted for the supporting plate 10 as long as being not subject to deformation and having high flatness.

[37] The weight reducing penetration holes 12 are formed by penetrating the blank spaces not subject to the operation of the cutting blades 20. Here, the penetration holes 12 are formed in shapes for effectively reducing the weight of the supporting plate 10. According to another embodiment of the present invention as shown in Fig. 6, wing parts 30-2 are further formed on upper and lower ends of inner case 30-1 to be fitted with the ends of the inner case 30-1 mounted in the handle hole 12 and the weight reducing penetration holes 12.

[38] Therefore, the wing parts 30-2 prevent the inner case 30-1 from moving up and down. Thus, the die-board is capable of minimizing the weight thereof and reducing an inferiority rate by preventing generation of dust. In addition, the inner case 30- 1 may be in various shapes, while being made of a shock-resistible material in tight contact with the inner surface of the weight reducing penetration holes 30.

[39] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

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