Description STRUCTURE OF WOOD MOLD COUPLED WITH SIDE PAD

Technical Field

[1] The present invention relates to a structure of a wood mold coupled with a side pad, and more particularly to a structure of a wood mold including cutting blades mounted thereto, being provided with a holder rack mounting groove formed at a circumferential surface of the wood mold to receive a holder rack of a press such that the holder rack is not protruded from a surface of a supporting plate and therefore not interfered with a product being processed, while preventing dust from generating from the circumferential surface of the wood mold and falling to the product being processed. Background Art

[2] In general, a wood mold, being also called a wooden die, a Thomson die or a cutter die, includes a supporting plate in the form of a board, a plurality of cutting blades and punches coupled to the supporting plate. The supporting plate is made of steel, wood, resin or the like, and is subjected to a laser or SCSI cutting process to have a predetermined pattern space therein. The cutting blades are fabricated by several processes using bending and cutting machines, and are forced-fit, along with the punches, in the predetermined pattern space of the supporting plate in various arrangements. In a wood mold according to a conventional art, as the wood mold is mounted to or dismounted from the holder rack of a press, dust may be generated from a contact part between the wood mold and the holder rack. This causes inconvenience during manufacturing and transporting of the wood mold.

[3] In order to overcome such a problem, there has been introduced a wood mold equipped with a side pad for covering the circumferential surface of the wood mold, filed by the present applicant. In this case, however, the cutting blades can barely be inserted in a processing surface by as much as required since the wood mold and the press holder rack are protruded. As a result, it becomes to achieve precise cutting. Furthermore, there is another problem in that the holder rack of the press touches the processing surface.

[4]

Disclosure of Invention

Technical Problem

[5] 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 wood mold capable of improving quality of a processed surface, by forming a mounting groove on a circumference of a

supporting plate of the wood mold such that a holder rack of a press is not protruded out when mounted.

[6] It is another object of the present invention to provide a wood mold coupled with a side pad so as to prevent dust from being generated from the circumferential surface thereof and falling to the product.

[7] It is a further object of the present invention to provide a wood mold coupled with a side pad so as to protect the circumferential surface thereof from damage during transportation.

[8] It is a further object of the present invention to provide a wood mold in which cutting blades are not easily deformed by operation of a press, so as to secure precision and high quality of the product and improve lifespan of the cutting blades.

[9] It is a further object of the present invention to provide a wood mold enabling a pressing force of the press to be efficiently transmitted thereof without loss, by favorably contacting the press.

[10]

Technical Solution

[11] In accordance with an aspect of the present invention, the above and other objects can be accomplished by the provision of a wood mold comprising a supporting plate and cutting blades, wherein the supporting plate includes holder rack mounting grooves formed on both or four sides thereof for engagement with holder racks of a press and each equipped with a side pad formed by fusing or fixing certain materials, such as aluminum, rubber and synthetic resin, or a film, to the sides of the supporting plate contacting the holder rack such that generation of dust can be prevented as the holder rack for fixing the supporting plate is inserted.

[12] In accordance with another embodiment of the present invention, the side pad further includes a piece hole for fixing to the supporting plate so as to prevent abrasion of the fixing piece and the holder rack.

[13] The supporting plate may include fixing grooves formed at upper and lower parts of the supporting plate so as to mount the side pad conveniently.

[14]

Advantageous Effects

[15] In a wood mold of the present invention, since side pads are mounted to two opposite sides or four sides of a supporting plate, generation of dust can be prevented while the wood mold is inserted in or separated from a holder rack of a press. In addition, by structuring the holder rack not to protrude, damage of a product being processed can be minimized. Also, damage caused during transporting of the wood mold can be effectively prevented.

Brief Description of the Drawings

[16] 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:

[17] Fig. 1 shows a state where side pads are mounted to a wood mold according to an embodiment of the present invention;

[18] Fig. 2 is a sectional view of the wood mold mounted with the side pads;

[19] Fig. 3 is a perspective view showing a state where the side pads are mounted to all four sides of the wood mold;

[20] Fig. 4 is a perspective view showing a state where the side pads are mounted to two facing sides of the wood mold;

[21] Fig. 5 is a sectional view of a wood mold mounted with side pads according to another embodiment of the present invention;

[22] Fig. 6 is an exploded perspective view of a wood mold mounted with side pads according to still another embodiment of the present invention;

[23] Fig. 7 is a view showing the wood mold of Fig. 6 being completely constructed;

[24] Fig. 8 is a perspective view of the wood mold mounted with side pads shown in Fig.

7;

[25] Fig. 9 is a plan view of the wood mold mounted with side pads according to the still another embodiment of the present invention;

[26] Fig. 10 is a sectional view of the wood mold mounted with side pads according to the still another embodiment of the present invention; and

[27] Fig. 11 is a perspective view of a corner connector of the wood mold mounted with side pads according to the still another embodiment of the present invention.

[28]

Best Mode for Carrying Out the Invention

[29] Hereinafter, a wood mold for prevention of generation of dust, being formed with a bent surface, according to preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[30] A wood mold 100 mounted with a side pad, according to an embodiment of the present invention as shown in Fig. 1 through 5, is characterized in that a holder rack of a press is not protruded when a supporting plate of the wood mold 100 is mounted to the holder rack. The wood mold 100 comprises holder rack mounting grooves 80 formed at two facing sides or all four sides thereof for engagement with the press holder rack 40, and a side pad 50 formed by fusing or fixing certain materials, such as aluminum, rubber and synthetic resin, or a film, to the holder rack mounting grooves 80. Formed on side surfaces of the supporting plate to contact the press holder rack, the

side pad is capable of preventing generation of dust.

[31] More specifically, the holder rack mounting grooves 80 are formed along a circumferential surface of the all four sides of the supporting plate to fix the holder rack of a press as shown in Fig. 3, and the side pad 50 is attached to or fit with the holder rack mounting grooves 80 formed on the four sides. The side pad 50 may be attached by fixing a piece 70 such as a bolt or a flat head bolt.

[32] For example, as shown in Fig. 3, a piece hole 70-1 may be formed on the side pad 50 so that piece 70 is not protruded as mounted in the piece hole 70-1.

[33] In addition, the side pad 50 may be implemented by a tape or silicon attached or applied to the holder rack mounting grooves 80. In the wood mold shown in Fig. 4, the side pad 50 is mounted to only two facing sides of the wood mold, contacting the holder rack 40.

[34] Fig. 5 shows a wood mold for preventing generation of dust according to another embodiment of the present invention, in which a bent surface is formed at the supporting plate. In addition, fixing grooves 80-1 are formed at upper and lower parts of the supporting plate 10, respectively, to mount the side pad 50 by inserting projection parts 90 of the side pad 50 therein. In addition, the piece is inserted in the piece hole 70-1 and fixed to the supporting plate.

[35] As shown in Fig. 5, the side pad 50 can be fixed to the supporting plate through the projection parts 90 inserted in the fixing grooves 80-1 formed at the upper and the lower parts of the supporting plate. The side pad 50 can be mounted to only four sides or two facing sides.

[36] The wood mold according to the embodiments of the present invention comprises the supporting plate and cutting blades, and also comprises a resilient member attached to the supporting plate around the cutting blades. The supporting plate has a board form, thereby constituting a base of the wood mold. The cutting blades are forcibly fit in a cutting space cut on the supporting plate corresponding to a predetermined layout. Being attached around the cutting blades on the supporting plate, the resilient member is compressed as the cutting blades move down to cut an object seated on the supporting plate and expanded back as the cutting blades move up after cutting the object. At this moment, the resilient member pushes the object to prevent the object from grabbing the cutting blades and moving up along with the cutting blades such that the object stably remains on the supporting plate. Usually, sponge or a large rubber board can be used as the resilient member. Free edges of the cutting blades are disposed higher than a free end of the resilient member by a predetermined degree so that the resilient member can press the object downward as the cutting blades move up after moving down to cut the object.

[37] For the above operations, the wood mold needs to be fixed to the press by being

pushed into the press holder rack. During the pushing, dust is generated from contacting surfaces between the wood mold, that is, the supporting plate and the holder rack. Additionally, dust is also generated from the wood mold mounted to the press that repeats striking motion hundreds to thousands of times. When the press holder rack is protruded more than the surface of the supporting plate, even the product may be damaged by friction with a processing surface.

[38] In the wood mold according to the another embodiment of the present invention, a prefab-type side pad 50 is mounted to both or four sides of the supporting plate 10. In addition, holder rack mounting grooves are formed to prevent dust from being generated at a contacting part between the wood mold and the holder rack while the wood mold is mounted to or separated from the holder rack, and also prevent the holder rack 50 from protruding.

[39] A wood mold coupled with a side pad according to still another embodiment of the present invention is shown in Fig. 6 through Fig. 11. The wood mold of the present embodiment comprises the supporting plate 10 including the cutting blades 20 mounted on an upper surface thereof, side projections 12 of a square form protruded on each lateral side for connection with a side pad 50, and corner connection recesses 14' formed at each corner for connection with corner connectors 50-1. The wood mold further comprises the four side moldings 30- 1 having an L-shape, connected to the respective side projections 12 of the supporting plate 10, and the four corner connectors 50-1 including corner connection projections 44 and 44' formed on an inner surface thereof for engagement with the corner connection recesses 14 and 14' of the supporting plate 10.

[40] The four corner connectors 50- 1 are formed with the corner connection projections

44 and 44' at both sides thereof for connection with lower parts of the side moldings 30-1.

[41] In the wood mold coupled with the side pad, the side moldings 30-1 are connected to the lateral sides of the supporting plate 10 through the corner connectors 50-1. The wood mold further comprises a bolt or the piece 70 engaged with the side molding 30-1 of the supporting plate 10 by passing through a bolt hole 32 formed at the side molding 30-1, in a state where the side pad 50 is mounted to the supporting plate 10 through the corner connector 50-1. Here, the side pad 50 has an L-shape. In addition, the corner connector 50- 1 may further include an air vent 42 formed on either an upper middle surface or a lower middle surface thereof such that the air can be discharged when the press is pressed.

[42] The wood mold according to the embodiments of the present invention is structured in a manner that the cutting blades 20 are mounted to the upper surface of the supporting plate 10, and the resilient member is further mounted around the cutting

blades 20. In addition, since the side pad 50 is coupled to every lateral side of the supporting plate 10, the supporting plate 10 and the cutting blades 20 can be prevented from bending or drooping during the operation of the wood mold. Preferably, the side pad 50 may comprise any of light metal including aluminum, engineering plastic and titanium. Also, it is preferred that the side pad 50 according to the embodiments of the present invention includes a label marked with a brand name or product name of the client, on an outer surface thereof. Therefore, since an operator is able to easily recognize the wood molds by the label, use and storage of the wood mold can be more conveniently performed.

[43] In addition, the wood mold of the present embodiment further includes the air vent

42 formed on at least one of upper and lower middle surfaces of the corner connector 40 that connects the respective four side moldings 30-1 to the respective sides of the supporting plate 10, so as to improve the efficiency of the process.

[44] More specifically, during the processing using the wood mold, air compressed between the resilient member and the wood mold 10 in contact with each other can be discharged to the outside through the air vent 42. The air vent 42 may have any of square, circular and oval shapes.

[45] The wood mold for cutting a predetermined material or product into desired shapes is structured by fixing the cutting blades 20 to the upper surface of the supporting plate 10 which is made of various materials including wood, acryl, resin and the like. Additionally, the resilient member in the form of a pad or a polyethylene layer is attached around the cutting blades 20 by similar height to the cutting blades 20. Here, the air vent 42 is further provided to allow escape of the air between the wood mold and the product such as a film being cut when the upper part of the wood mold is pressed by the press.

[46] The wood mold may further comprise an intermediate member for covering the whole upper surface of the supporting plate 11, being formed of PET film or synthetic resin.

[47] As the press is quickly moved down to press the supporting plate 10 from above the film supplied to the supporting plate 10, the cutting plates 20 cuts the film into predetermined shapes. During this, the compressed air among the cutting blades 20 can be discharged out of the supporting plate 10 through the air vent 42.

[48] According to this, the space between the film and the wood mold is not vacuumized, thereby greatly reducing deformation of the cutting blades 20 by up to 90%. That is, since the deformation is generated by only l/1000mm~5/1000mm including a tolerance, the product can be more precisely cut. As a result, inferior products are minimized while greatly enhancing reliability of the wood mold. The lifespan of the cutting blades 20 is improved by restraining deformation of the cutting blades 20.

Moreover, in the wood mold according to the embodiment of the present invention, since the intermediate member is provided to the upper surface of the supporting plate 10, pressure of the press pressing the supporting plate 10 can be accurately and uniformly transmitted to the supporting plate 10 without loss. Therefore, less pressure is required than in conventional arts to obtain a desired degree of pressure. [49] 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.