WO2012039583A2

WO2012039583A2 - Paperboard die-cutting apparatus having a guide plate for protecting cut surfaces

Info

Publication number: WO2012039583A2
Application number: PCT/KR2011/006955
Authority: WO
Inventors: 이환
Original assignee: Lee Hwan
Priority date: 2010-09-20
Filing date: 2011-09-20
Publication date: 2012-03-29
Also published as: WO2012039583A3

Abstract

The present invention relates to a paperboard die-cutting apparatus having a guide plate for protecting cut surfaces. The apparatus of the present invention comprises a first die, a first press, a second die and a second press. The first die includes a first support on which paperboard is placed, and a first die-fixing portion and a cutter blade which are movable in the vertical direction toward the first support. The first press includes a first die guide plate which is arranged at the first die-fixing portion such that the first die guide plate is movable in the vertical direction, and which is brought into contact with an upper surface of the paperboard prior to the contact of the cutter blade of the first die when the first die-fixing portion descends. The second die includes a second support on which paperboard is placed, and a second die-fixing portion and a cutter blade which are movable in the vertical direction toward the second support. The second press includes a second die guide plate which is arranged at the second die-fixing portion such that the second die guide plate is movable in a vertical direction, and which is brought into contact with an upper surface of the paperboard prior to the contact of the cutter blade of the second die when the second die-fixing portion descends.

Description

Cardboard die cutting device with guide plate for cutting edge protection

The present invention relates to a cardboard die cutting device, and more particularly to a cardboard die cutting device having a guide plate for protecting the cut surface.

Paperboard die cutting devices are generally known as Thomson machines. The Thomson machine was developed as a device for extracting the outer shape of a paper box using a wooden die, but recently it is widely used for the processing of precise products. The Thomson machine consists of a base on which cardboard for die cutting is placed, and a die holder for installing a die (wood mold) with a cutting blade. The die fixing part is movable up and down. The cutting blade is installed to surround the outer shape of the product to be die cut.

After the die fixing unit descends and cuts through the cardboard in which the cutting blade is placed in the supporting portion, the die is fixed and then a cushion of elastic material is attached to the periphery of the cutting blade so that the cardboard and the cutting blade are easily separated.

The conventional cardboard die cutting apparatus is particularly characterized in that when a cutting edge having a predetermined outline shape cuts corrugated cardboard, the peripheral cardboard cut by a plurality of cushions provided around the cutting edge is pressed with uneven pressure. The part where the edge of the cut surface of the cut cardboard is strongly pressed by the cushion has a problem that the cardboard is not restored to its original state, resulting in a decrease in strength or poor appearance.

In addition, even if the restoration to some extent, there is a problem that the edge portion of the cut surface of the corrugated cardboard that is unevenly pressed is fragile and easily torn or broken.

In addition, cushions made of a material such as synthetic rubber are easily worn with repeated pressing and restoration. Therefore, the fine dust of the worn cushion may result in a bad working environment or product defects. In addition, there is a problem that the cost increases because the worn cushion to be replaced every time.

An object of the present invention is to solve the problems of the conventional cardboard die cutting apparatus as described above. It is an object of the invention to provide a cardboard die cutting device capable of protecting the cut edges. Another object of the present invention is to provide a cardboard die cutting device capable of cutting cardboard without using a cushion around the cutting edge.

Cardboard die cutting apparatus according to an aspect of the present invention, the first press for cutting a portion of the outer periphery of the product to be die-cut cardboard, and a second press for cutting the remaining outer periphery.

The first press includes a first support part having an upper surface on which cardboard is placed, a first die fixing part provided to be capable of moving up and down toward the first support part, a cutting blade, and a lower portion of the first die fixing part. A first die provided on the surface and a first die guide plate which is installed to be movable up and down on the first die fixing part and is in close contact with the upper surface of the cardboard before the cutting edge of the first die when the first die fixing part is lowered; Include.

The second press includes a second support portion having an upper surface on which cardboard is placed, a second die fixing portion provided to be able to move up and down toward the second support portion, and a cutting blade and a lower portion of the second die fixing portion. A second die provided on the surface and a second die guide plate which is installed to be movable up and down on the second die fixing part and is in close contact with the upper surface of the cardboard before the cutting edge of the second die when the second die fixing part descends. Include.

In addition, the cutting blade of the first die is installed to correspond to a part of the outer shape of the cardboard shape to be die-cut, and the first slot is formed in the first die guide plate so that the cutting blade of the first die penetrates. In addition, the cutting blade of the second die is installed so that the cutting blade of the first die in the outer shape of the cardboard shape to be die-cut corresponding to the remaining portion corresponding to the second die guide plate, so that the cutting blade of the second die through the second die guide plate The second slot is formed. A separate transfer device may be installed between the first press and the second press to transfer the cardboard cut in part from the first press to the second press.

According to another aspect of the present invention, there is provided a paper die cutting device comprising: a supporting part having an upper surface on which a cardboard is placed, a die fixing part installed to be movable up and down toward the supporting part, and a plurality of cutting blades, wherein the die fixing part is provided. And a die guide plate installed on the die fixing part so as to be movable up and down, and installed in close contact with the upper surface of the paperboard before the plurality of cutting blades when the die fixing part descends. A plurality of cutting blades of the die are provided at intervals along the outer periphery of the cardboard shape to be die-cut, the die guide plate cardboard die cutting, characterized in that a plurality of slots are formed so that the plurality of cutting blades of the die penetrates Device.

According to the present invention, the die guide plate guides the cutting edge and uniformly adheres around the cardboard to be cut at the same time, thereby preventing the edge of the outer shape of the cardboard cut by the cutting blade from being unevenly pressed and damaged. Therefore, it is possible to produce high-quality cardboard processing with a beautiful appearance.

In addition, by using a die guide plate having excellent durability, it is possible to prevent the generation of fine dust generated when using a conventional cushion, to keep the working environment comfortable, and to use the die guide plate for a long time, thereby reducing the cost of replacing the die. You can save.

1 is a front view of one embodiment of a cardboard die cutting device according to the present invention.

FIG. 2 is a bottom perspective view of the first die fixing part and the first die of the first press illustrated in FIG. 1.

FIG. 3 is a bottom perspective view of the second die fixing part and the second die of the second press illustrated in FIG. 1.

4 (a) is a cross sectional view of the first press before cutting the fed cardboard, and FIG. 4 (b) is a sectional view of the first press with the cardboard fed.

Fig. 5 (a) is a cross-sectional view of the second press before cutting the fed cardboard in a state in which the cardboard cut by the first press is supplied, and Fig. 5 (b) is a second press in the state where the fed cardboard is cut It is a cross section of.

Fig. 6 (a) is a plan view of the cardboard cut by the first press, Fig. 6 (b) is a plan view of the cardboard cut by the second press, and Fig. 6 (c) is a perspective view of the workpiece separated from the cardboard. .

7 is a front view of another embodiment of a cardboard die cutting device according to the present invention.

Figure 8 (a) is a cross-sectional view before the operation of another embodiment of the first guide pin according to the present invention, Figure 8 (b) is a cross-sectional view after the operation.

9 is a front view of another embodiment of a cardboard die cutting device according to the present invention.

FIG. 10 is a bottom perspective view of the die fixing part and the die of the press shown in FIG. 9 separated; FIG.

Other objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments associated with the accompanying drawings.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the paperboard die cutting device according to the present invention will be described in detail with reference to the accompanying drawings.

First, referring to FIGS. 1 to 3, the paperboard die cutting device of the present invention includes a first press 101 and a second press 102. The first press 101 includes a first support part 110, a first die fixing part 120, a first die 130, and a first die guide plate 141. The first base 110 is disposed cardboard 10 on the upper surface. The first die fixing part 120 is disposed at intervals above the first supporting part 110 to move up and down toward the first supporting part 110. The first die 130 includes a first support 131 and a first cutting blade 132. The first support 131 is made of iron plate, resin, wood, or the like and is installed on the lower surface of the first die fixing part 120. The first cutting blade 132 is installed to correspond to a portion of the outer shape of the cardboard to be die-cut cardboard 10 placed on the first support 110.

The first die guide plate 141 is formed with a first slot 142 to penetrate the first cutting blade 132. The first slot 142 is preferably formed to be wider than the width of the first cutting blade 132 so that interference does not occur when the first cutting blade 132 is penetrated. The first spring 144 is installed between the first die guide plate 141 and the first die fixing part 120. In addition, between the first die guide plate 141 and the first die fixing part 120 to prevent the first die guide plate 141 from swinging left and right when moving up and down by the plurality of first springs 144. A plurality of first guide pin 145 is installed in the. One end of the first guide pin 145 is inserted into the first hole 143 formed in the first die guide plate 141, and the first die fixing hole 121 formed in the corresponding first die fixing part 120. Fasten the first nut 146 so as not to be separated at the other end.

The second press 102 includes a second support part 150, a second die fixing part 160, a second die 170, and a second die guide plate 181. The second support part 150 is disposed on the upper surface of the cardboard 10 is partially cut by the first cutting blade 132 of the first press 101. The second die fixing part 160 is disposed at intervals above the second supporting part 150 to move up and down toward the second supporting part 150. The second die 170 includes a second support 171 and a second cutting edge 172. The second support 171 is made of iron plate, resin, wood, or the like, and is installed on the lower surface of the second die fixing part 160. The second cutting blade 172 is installed to correspond to a portion of the outer shape of the cardboard to be die-cut cardboard 10 placed on the second support portion 120.

In the second die guide plate 181, a second slot 182 is formed to penetrate the second cutting edge 172. The second slot 182 is preferably formed to be wider than the width of the second cutting blade 172 so that interference does not occur when the second cutting blade 172 is penetrated. The second spring 184 is installed between the second die guide plate 181 and the second die fixing part 160. In addition, between the second die guide plate 171 and the second die fixing part 160 to prevent the second die guide plate 181 from swinging left and right when moving up and down by the plurality of second springs 184. A plurality of second guide pin 185 is installed in the. One end of the second guide pin 185 is inserted into the second hole 183 formed in the second die guide plate 181, and the second die fixing part hole 161 formed in the corresponding second die fixing part 170. Fasten the second nut 186 so that it is not separated from the other end.

The first and second guide pins 145 and 185 of the present invention are threaded at the other end and screwed with a nut, but are not limited thereto. Grooves are formed in the outer circumferential surfaces of the first and second guide pins 145 and 185. It may be machined, fitted with a retaining ring or formed with a through hole and secured with a pin. Preferably, the first and

second springs

144 and 184 are disposed and assembled on the outer circumferential surfaces of the first and second guide pins 145 and 185 provided between the die guide plate and the die fixing parts. The cardboard die cutting apparatus of the embodiment according to the present invention is, of course, provided with a transfer means for transferring the cardboard 10 between the first press 101 and the second press 102.

Referring to FIG. 4, the cardboard 10 is disposed on the upper surface of the first supporting portion 110 of the first press 101, and the first die fixing portion 120 is disposed on the upper portion of the first supporting portion 110. Move towards the face. When the first die fixing part 120 is lowered, the lower surface of the first die guide plate 141 provided on the front surface of the first die fixing part 120 is first in close contact with the upper surface of the cardboard 10. Next, when the first die fixing part 120 is further lowered, the first die guide plate 141 is compressed by the plurality of first springs 144, and the first cutting blade 132 is first die guided. The cardboard 10 is cut while penetrating through the first slot 142 formed in the plate 141. At this time, the first cutting edge 132 is a first cut portion 11 shown by a solid line, as shown in Figure 6 (a), the first cut portion 11 is a part of the workpiece so as not to be separated from the cardboard (10). Is cut.

When the cutting is completed, the first die fixing part 120 rises, and the first die guide plate 141 continues the cardboard 10 while the first cutting blade 132 passes through the first slot 142. It is pressurized. When the first cutting blade 132 passes completely through the first slot 142, the plurality of compressed first springs 144 are restored and the first die guide plate 141 is moved toward the front of the first cutting blade 132. Move. When the first die fixing part 120 continuously rises and the plurality of first springs 144 are completely restored, the first die guide plate 141 pressing the cardboard 10 is separated from the cardboard 10. In this case, the first die guide plate 141 may move in a stable state in the vertical direction by the plurality of first guide pins 145 together with the plurality of first springs 144.

Referring to FIG. 5, the cardboard 10 cut by the first press 101 is disposed on an upper surface of the second support part 150 of the second press 102. The second die fixing part 160 moves toward the upper surface of the second receiving part 150. When the second die fixing portion 160 is lowered, the lower surface of the second die guide plate 181 provided on the front surface of the second die fixing portion 160 is first in close contact with the upper surface of the cardboard 10. Next, when the second die fixing part 160 is further lowered, the second die guide plate 181 is compressed by the plurality of second springs 184, and the second cutting blade 172 is the second die guide. The cardboard 10 is cut while penetrating through the second slot 182 formed in the plate 181. At this time, the second cutting edge 172 is a second cut portion 12 indicated by a solid line as shown in Figure 6 (b), the second cut portion 12 cuts the remainder of the workpiece shape.

When the cutting is completed, the second die holding portion 160 is raised, and the second die guide plate 181 continues the cardboard 10 while the second cutting blade 172 passes through the second slot 182. It is pressurized. When the second cutting blade 172 passes completely through the second slot 182, the plurality of compressed second springs 184 are restored and the second die guide plate 181 moves toward the front of the second cutting blade 172. Move. When the second die fixing part 160 continuously rises and the plurality of second springs 184 are completely restored, the second die guide plate 181 pressing the cardboard 10 is separated from the cardboard 10. At this time, the second die guide plate 181 may move in a stable state in the vertical direction by the plurality of second guide pins 185 together with the plurality of second springs 184. Next, the workpiece 13 cut from the cardboard 10 is separated using a punching device.

FIG. 7 is a front view of another embodiment of a cardboard die cutting device according to the present invention, in which use of a plurality of

cylinders

191, 192 to constrain the movement of the first and second

die guide plates

141, 184 is practiced. It is different from the example. That is, since the plurality of

cylinders

191 and 192 that operate precisely according to the control signal are used, the moving distances of the first and

second guide plates

141 and 181 can be freely adjusted. Therefore, even if the cardboard 10 is thick or thin, the pressing of the cardboard 10 can be conveniently adjusted by controlling the vertical movement of the first and

second guide plates

141 and 181 precisely according to the thickness of the cardboard 10. It has an effect.

1 to 5, one end of each of the first guide pin 145 and the second guide pin 185 according to the present invention may include a first die fixing part 120 and a second die fixing part 160. It is installed so that it can be moved up and down without being fixed to it. Accordingly, when the cardboard 10 is pressed into the first guide plate 141 and the second guide plate 181, one end of the first guide pin 145 and the second guide pin 185 faces the first bottom plate. Protruding to 110 and the second bottom plate 150. At this time, the other end of the first guide pin 145 and the second guide pin 185 is of course installed in the first die fixing part 120 and the second die fixing part 160 to move up and down.

8 (a) and 8 (b), the present invention is different from the first and second guide pins 145 and 185 in which one end of each guide pin is fixed to the die guide plate. That is, one end of the first guide pin 145 ′ installed in the first press according to the present invention is screwed into and fixed to the first screw hole 143 ′ formed in the first die guide plate 141, and the other end of the first guide pin 145 ′ is fixed. The first nut 146 is coupled to and fixed to the first die fixing part 120. Therefore, when the cardboard 10 is pressed against the first guide plate 141, one end of the first guide pin 145 ′ moves together without opening the first die guide plate 141. At this time, the other end of the first guide pin 145 ′ is installed to be movable up and down on the first die fixing part 120.

As in the present invention, one end of the first guide pin 145 'is screwed and fixed to the first screw hole 143', but is not limited thereto and may be fixed by various structures. In addition, in the second guide pin installed in the second press, both ends of the second guide pin, like the first guide pin 145 'is fixed at one end and the other end is installed to enable the vertical movement.

9 is a front view of yet another embodiment of a paperboard die cutting device according to the present invention, and FIG. 10 is a bottom perspective view of the die fixing portion of the press shown in FIG.

The cardboard die cutting device of another embodiment according to the present invention uses one press so that the workpiece 13 is not completely separated from the cardboard 10 as in one embodiment and another embodiment of the present invention. It can be cut with only minimal connections left. Hereinafter, since the operation state is the same as one embodiment of the present invention, a detailed description will be omitted and the structure will be described.

The press 201 of the paperboard die cutting device of the present invention with reference to FIG. 9 includes a support portion 210, a die fixing portion 220, a die 230, and a die guide plate 241. The cardboard 10 is disposed on the upper surface of the base 210. The die fixing part 220 is disposed at intervals on the upper part of the support part 210 so as to move up and down toward the support part 210.

The die 230 includes a support 231 and a plurality of cutting edges 232. The plurality of cutting blades 232 cuts the cardboard 10 placed on the support 210, leaving only a minimum connection portion so that the workpiece 13 and the cardboard 10 are not completely separated. That is, the plurality of cutting edges 232 are discontinuously installed along the outer edge of the cardboard shape so that the cardboard 10 is cut in a state in which a portion remains at intervals along the outer edge of the workpiece 13.

The die guide plate 241 is formed with a slot 242 at a position corresponding to the plurality of cutting blades 232 to pass through. The slot 242 is completely penetrated except for the connecting portion 247 through which the plurality of cutting edges 232 are not penetrated. The connection part 247 is preferably formed at the bending portions of the plurality of cutting edges 232, but is not limited thereto. The slot 242 is preferably formed to be wider than the width of the cutting blade 232 so that interference does not occur when each cutting blade 232 is penetrated.

The spring 244 is provided between the die guide plate 241 and the die fixing part 220. In addition, the plurality of guide pins 245 between the die guide plate 241 and the die fixing part 220 to prevent the die guide plate 241 from swinging left and right when moving up and down by the plurality of springs 244. This is installed. The nut 246 is fastened so as not to be separated from the die fixing part 220 of the guide pin 245.

The paperboard die cutting device of another embodiment of the present invention uses only one press to cut the work piece and the paperboard, leaving only minimal connections so that the work piece and the paperboard are not completely separated. As described above, the workpiece can be quickly separated by a punching device operating by vibration or pressure in the next step in a state where the workpiece and the cardboard are not separated. Therefore, in one embodiment and another embodiment according to the present invention to shorten the work process to improve productivity, there is an effect that is easy to maintain.

Embodiments of the present invention described above and illustrated in the drawings should not be construed as limiting the technical spirit of the present invention. The protection scope of the present invention is limited only by the matters described in the claims, and those skilled in the art can change and change the technical idea of the present invention in various forms. Therefore, such improvements and modifications will fall within the protection scope of the present invention as long as it will be apparent to those skilled in the art.

Claims

A first supporting part having an upper surface on which cardboard is disposed, a first die fixing part installed to be able to move upward and downward toward the first supporting part, and a cutting blade and installed on a lower surface of the first die fixing part A first die and a first die guide plate installed to be movable up and down in the first die fixing part and to be in close contact with the upper surface of the cardboard before the cutting edge of the first die when the first die fixing part is lowered; A first press that includes,

A second support portion having an upper surface on which cardboard is disposed, a second die fixing portion installed to be able to move upward and downward toward the second support portion, and a cutting blade and installed on a lower surface of the second die fixing portion A second die and a second die guide plate which is installed to be movable up and down in the second die fixing part and is in close contact with the upper surface of the cardboard before the cutting edge of the second die when the second die fixing part is lowered; Including a second press to include,

The cutting blade of the first die is installed so as to correspond to a portion of the outer shape of the cardboard to be cut, the first die guide plate is formed with a first slot so that the cutting blade of the first die,

The cutting edge of the second die is installed so that the cutting edge of the first die in the outer shape of the cardboard shape to be die-cut corresponding to the remaining portion corresponding to, and the cutting edge of the second die on the second die guide plate Cardboard die cutting device, characterized in that the second slot is formed so as to penetrate.
The method of claim 1,

Further comprising a first cylinder connecting the first die guide plate and the first die fixing portion, wherein the first die guide plate is controlled to move up and down by the first cylinder,

And a second cylinder connecting the second die guide plate and the second die fixing part, wherein the second die guide plate is controlled to move up and down by the second cylinder. Device.
The method of claim 1,

And a plurality of first springs connecting the first die guide plate and the first die fixing part, and a plurality of second springs connecting the second die guide plate and the second die fixing part. Carton die cutting device.
The method of claim 3,

A plurality of first guide pins fixed at the first die guide plate and installed at the first die fixing unit to allow the other end to move upward and downward;

Paper die cutting device further comprises a plurality of second guide pins one end is fixed to the second die guide plate and the other end is installed in the second die fixing portion to enable vertical movement.
The method of claim 3,

A plurality of first guide pins installed at the first die guide plate at one end thereof to move up and down and at the other end thereof to move up and down;

Paper die cutting device characterized in that it further comprises a plurality of second guide pins are installed on the second die guide plate one end is capable of vertical movement and the other end is movable up and down.
A support portion having an upper surface on which cardboard is disposed, a die fixing portion provided to be able to move upward and downward toward the support portion, a die provided with a plurality of cutting blades and installed on a lower surface of the die fixing portion, and the die fixing portion And a die guide plate installed to be movable up and down in contact with the upper surface of the paperboard before the plurality of cutting blades when the die fixing unit descends,

The plurality of cutting blades of the die are provided at intervals along the outer periphery of the cardboard shape to be die cut, the die guide plate is characterized in that a plurality of slots are formed so that the plurality of cutting blades of the die penetrates Cardboard die cutting device.
The method of claim 6,

And a cylinder connecting the die guide plate and the die fixing unit, wherein the die guide plate is controlled to move up and down by the cylinder.
The method of claim 6,

Paper die cutting apparatus further comprises a plurality of springs connecting the die guide plate and the die fixing portion.