A paper tray knife mold and manufacturing method thereof

Abstract

The present invention provides a paper tray knife die and a manufacturing method thereof, comprising an upper die and a lower die, wherein the upper die comprises an upper die bottom plate, a buffer pad plate, an upper pad plate, a silicone layer and a knife plate arranged in sequence from top to bottom, and the lower die comprises a positioning module, a knife pad sponge layer, a knife frame plate, a lower pad plate and a lower die bottom plate arranged in sequence from top to bottom, and the knife plate is provided with a concave die for forming a paper tray, and a convex die is provided on the positioning module corresponding to the concave die, and a groove for installing the convex die is provided on the positioning module, and the convex die is arranged in the groove so as to be liftable by an elastic element. The present invention greatly improves processing efficiency, reduces the labor intensity of workers, and can also realize automated production.

Description

Technical Field

[0001] The invention relates to the field of knife molds, and in particular to a paper tray knife mold and a manufacturing method thereof. Background Art

[0002] Paper trays are usually used as inner trays. They have specific grooves. Placing the product in the grooves can protect and beautify the product. Therefore, paper trays are often used in various electronic products, stationery, toys, cosmetics, gifts and high-end decorations.

[0003] The paper tray cutting die in the prior art includes a punch and a die. The die of a general paper tray cutting die is a fixed die, and the punch is a movable die. The die-cutting machine drives the punch downward to punch and form the cardboard placed on the die. After forming, it is necessary to manually take out the formed paper tray. Since the paper tray will be completely sunken into the groove after forming, the paper tray is tightly attached to the inner wall of the die. In this way, workers are required to take the paper tray out of the inner wall of the die, which takes a long time and is difficult to use a discharging auxiliary device to take out the paper tray. The paper tray mold in the above-mentioned prior art is difficult to use in automated production, and the paper tray mold in the above-mentioned prior art has low processing efficiency and high labor intensity for workers. Summary of the invention

[0004] The purpose of the present invention is to provide a paper tray cutter die which can be used in automated production, can improve processing efficiency and reduce the labor intensity of workers.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A paper tray cutting die comprises an upper die and a lower die, wherein the upper die comprises an upper die bottom plate, a buffering pad plate, an upper pad plate, a silicone layer and a cutting plate which are sequentially arranged from top to bottom, and the lower die comprises a positioning module, a knife pad sponge layer, a knife frame plate, a lower pad plate and a lower die bottom plate which are sequentially arranged from top to bottom, the cutting plate is provided with a concave die for forming a paper tray, the positioning module is provided with a convex die corresponding to the concave die, the positioning module is provided with a groove for installing the convex die, and the convex die is arranged in the groove so as to be liftable by an elastic element.

[0007] Furthermore, the concave mold may be provided in plurality, and the convex mold may also be provided in plurality corresponding to the concave mold.

[0008] Furthermore, the upper mold base plate is provided with a positioning column, and the lower mold base plate is provided with a positioning through hole. The lower mold base plate cooperates with the positioning column of the upper mold base plate through the positioning through hole, so that the upper mold can perform lifting and lowering movements under the guidance of the positioning column.

[0009] Furthermore, a plurality of elastic elements are provided, and each elastic element is a spring.

[0010] Furthermore, a positioning block is also provided in the groove, and the positioning block can be arranged in the middle of the groove. When the punch is raised or lowered, the positioning block can guide the punch.

[0011] Furthermore, the knife plate is provided with a plurality of mounting holes, positioning rods are installed in the mounting holes, and the knife pad sponge layer and the knife frame plate are provided with positioning holes corresponding to the positioning rods.

[0012] Another object of the present invention is to provide a method for making a paper tray cutting die.

[0013] In order to achieve the above object, the present invention provides the following technical solutions:

[0014] A method for making a paper tray knife die, comprising the following processes:

[0015] 1. Cut out the upper mold base plate, buffer pad plate, upper pad plate, silicone layer, knife plate, positioning module, knife sponge layer, knife frame plate, lower pad plate and lower mold base plate according to the specified size;

[0016] 2. Abrasive: grind the upper die bottom plate, upper pad plate, knife plate, knife frame plate, lower pad plate and lower die bottom plate according to the specified thickness through a grinder;

[0017] 3. Wire cutting: Use a wire cutting machine to separate the polished knife plate and the knife frame plate and cut out the knife groove;

[0018] 4. CNC processing, in which the positioning module and the buffer pad are made of bakelite through CNC processing, and the screw holes and positioning holes of the upper mold bottom plate, upper pad plate, knife plate, knife frame plate, lower pad plate and lower mold bottom plate, as well as the airtight part of the upper mold bottom plate are processed by CNC;

[0019] 5. Abrasive: After assembling the lower pad plate and the lower die bottom plate, they are polished by a grinder; after assembling the upper pad plate and the upper die bottom plate, they are polished by a grinder;

[0020] 6. Insert the knife, assemble the upper mold, and assemble the upper mold bottom plate, buffer pad plate, upper pad plate, silicone layer and knife plate from top to bottom; assemble the lower mold, and assemble the positioning module, knife sponge layer, knife frame plate, lower pad plate and lower mold bottom plate from top to bottom.

[0021] Furthermore, the positioning module is made of bakelite, and the lower mold bottom plate, the knife frame plate and the lower pad plate are made of 45# steel.

[0022] Furthermore, the knife-beating plate, the upper pad plate and the upper mold bottom plate are made of 45# steel, and the buffer pad plate is made of bakelite.

[0023] The beneficial effects of the present invention are:

[0024] Compared with the prior art, the present invention sets an upper mold and a lower mold, wherein the upper mold includes an upper mold bottom plate, a buffer pad plate, an upper pad plate, a silicone layer and a knife plate arranged in sequence from top to bottom, and the lower mold includes a positioning module, a knife sponge layer, a knife frame plate, a lower pad plate and a lower mold bottom plate arranged in sequence from top to bottom, a concave mold for forming a paper tray is arranged on the knife plate, a convex mold is arranged on the positioning module corresponding to the concave mold, a groove for installing the convex mold is arranged on the positioning module, and the convex mold is arranged in the groove so as to be lifted and lowered by an elastic element. The paper tray knife mold of the present invention It can be installed on an automated production line. When the paper tray is stamped, first place the paper tray on the punch of the lower die, and then the upper die drives the concave die to press the paper tray onto the punch. The punch will be driven down while the concave die is pressed down, and the punch will compress the elastic element. After the paper tray is formed, the upper die will reset upward. At this time, the elastic element will push the punch upward to rise, and then the paper tray on the punch will be taken out through the auxiliary discharging device or manually, thereby greatly improving the processing efficiency, reducing the labor intensity of workers, and realizing automated production. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 It is a schematic diagram of the exploded structure of the upper mold and the lower mold of the present invention;

[0027] Figure 3 It is a side structural schematic diagram of the present invention;

[0028] Figure 4 is a cross-sectional view of the lower mold of the present invention;

[0029] Figure 5 It is a cross-sectional view of another cutting line of the lower mold of the present invention. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings:

[0031] like Figures 1 to 5 As shown, a paper tray cutting die comprises an upper die 1 and a lower die 2, wherein the upper die 1 comprises an upper die bottom plate 11, a buffering pad plate 12, an upper pad plate 13, a silicone layer 14 and a cutting plate 15 which are sequentially arranged from top to bottom, and the lower die 2 comprises a positioning module 21, a knife sponge layer 22, a knife frame plate 23, a lower pad plate 24 and a lower die bottom plate 25 which are sequentially arranged from top to bottom, the cutting plate 15 is provided with a die 17 for forming a paper tray, the positioning module 21 is provided with a punch 211 corresponding to the die 17, the positioning module 21 is provided with a groove 212 for installing the punch 211, and the punch 211 is arranged in the groove 212 so as to be liftable by an elastic element 213.

[0032] Compared with the prior art, the paper tray cutting die of the present invention can be installed on an automated production line. When the paper tray is stamped and formed, the paper tray is first placed on the punch 211 of the lower die 2, and then the upper die 1 drives the die 17 to press the paper tray onto the punch 211. When the die 17 presses down, it will drive the punch 211 down, and the punch 211 will compress the elastic element 213. When the paper tray is formed, the upper die 1 is reset upward. At this time, the elastic element 213 will push the punch 211 upward to rise, and then the paper tray on the punch 211 is taken out by an auxiliary discharging device or manually, thereby greatly improving the processing efficiency, reducing the labor intensity of workers, and realizing automated production.

[0033] Furthermore, the concave mold 17 may be provided in plurality, and the convex mold 211 may also be provided in plurality corresponding to the concave mold 17 .

[0034] Furthermore, the upper mold base plate 11 is provided with a positioning column 16, and the lower mold base plate 25 is provided with a positioning through hole 251. The lower mold base plate 25 cooperates with the positioning column 16 of the upper mold base plate 11 through the positioning through hole 251, so that the upper mold 1 can perform lifting and lowering movements under the guidance of the positioning column 16.

[0035] Furthermore, a plurality of elastic elements 213 are provided, and each elastic element 213 is a spring.

[0036] Furthermore, a positioning block 215 is also provided in the groove 212. The positioning block 215 can be provided in the middle of the groove 212. When the punch 211 is raised or lowered, the positioning block 215 can guide the punch 211. The positioning block 215 is provided, so that an air-avoiding hole 214 of the air-avoiding positioning block 215 needs to be provided in the punch 211. The air-avoiding hole 214 can prevent the paper tray from being completely attached to the punch 211 when the paper tray is formed and ejected from the mold. Through the air-avoiding hole 214, air can enter the air-avoiding hole 214 through the groove 212, so that the paper tray can be ejected from the punch conveniently.

[0037] Furthermore, the knife-beating plate 15 is provided with a plurality of mounting holes, positioning rods 19 are installed in the mounting holes, and the knife pad sponge layer 22 and the knife frame plate 23 are provided with positioning holes 221 corresponding to the positioning rods 19 .

[0038] A method for making a paper tray knife die, comprising the following processes:

[0039] 1. Cut out the upper mold base plate, buffer pad plate, upper pad plate, silicone layer, knife plate, positioning module, knife sponge layer, knife frame plate, lower pad plate and lower mold base plate according to the specified size;

[0040] 2. Abrasive: grind the upper die bottom plate, upper pad plate, knife plate, knife frame plate, lower pad plate and lower die bottom plate according to the specified thickness through a grinder;

[0041] 3. Wire cutting: Use a wire cutting machine to separate the polished knife plate and the knife frame plate and cut out the knife groove;

[0042] 4. CNC processing, in which the positioning module and the buffer pad are made of bakelite through CNC processing, and the screw holes and positioning holes of the upper mold bottom plate, upper pad plate, knife plate, knife frame plate, lower pad plate and lower mold bottom plate, as well as the airtight part of the upper mold bottom plate are processed by CNC;

[0043] 5. Abrasive: After assembling the lower pad plate and the lower die bottom plate, they are polished by a grinder; after assembling the upper pad plate and the upper die bottom plate, they are polished by a grinder;

[0044] 6. Insert the knife, assemble the upper mold, and assemble the upper mold bottom plate, buffer pad plate, upper pad plate, silicone layer and knife plate from top to bottom; assemble the lower mold, and assemble the positioning module, knife sponge layer, knife frame plate, lower pad plate and lower mold bottom plate from top to bottom.

[0045] Furthermore, the positioning module is made of bakelite, and the lower mold bottom plate, the knife frame plate and the lower pad plate are made of 45# steel.

[0046] Furthermore, the knife-beating plate, the upper pad plate and the upper mold bottom plate are made of 45# steel, and the buffer pad plate is made of bakelite.

[0047] The above description does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A paper tray cutting die, characterized in that: The invention comprises an upper die and a lower die, wherein the upper die comprises an upper die bottom plate, a buffer pad plate, an upper pad plate, a silicone layer and a knife plate which are arranged in sequence from top to bottom, and the lower die comprises a positioning module, a knife sponge layer, a knife frame plate, a lower pad plate and a lower die bottom plate which are arranged in sequence from top to bottom, the knife plate is provided with a concave die for forming a paper support, a convex die is provided on the positioning module corresponding to the concave die, a groove for installing the convex die is provided on the positioning module, the convex die is arranged in the groove so as to be liftable by an elastic element, a positioning block is further provided in the groove, the positioning block can be arranged in the middle of the groove, the positioning block can guide the convex die when the convex die is lifted, an air avoidance hole of the air avoidance positioning block needs to be provided in the convex die, the air avoidance hole can prevent the paper support from being completely attached to the convex die when the paper support is formed and ejected from the die, and air can enter the air avoidance hole through the groove through the air avoidance hole, so as to facilitate the paper support to be discharged from the convex die.

2. A paper tray cutting die according to claim 1, characterized in that: The concave mold may be provided in plurality, and the convex mold may also be provided in plurality corresponding to the concave mold.

3. A paper tray cutting die according to claim 1, characterized in that: The upper mold base plate is provided with a positioning column, and the lower mold base plate is provided with a positioning through hole. The lower mold base plate cooperates with the positioning column of the upper mold base plate through the positioning through hole, so that the upper mold can perform lifting and lowering movements under the guidance of the positioning column.

4. The paper tray cutting die according to claim 1, characterized in that: A plurality of elastic elements are provided, and each elastic element is a spring.

5. The paper tray cutting die according to claim 1, characterized in that: The knife plate is provided with a plurality of mounting holes, positioning rods are installed in the mounting holes, and the knife pad sponge layer and the knife frame plate are provided with positioning holes corresponding to the positioning rods.

6. A method for making a paper tray cutting die according to any one of claims 1 to 5, characterized in that: Including the following processes:

1. Cut out the upper mold base plate, buffer pad plate, upper pad plate, silicone layer, knife plate, positioning module, knife sponge layer, knife frame plate, lower pad plate and lower mold base plate according to the specified size; 2. Abrasive: grind the upper die bottom plate, upper pad plate, knife plate, knife frame plate, lower pad plate and lower die bottom plate according to the specified thickness through a grinder; 3. Wire cutting: Use a wire cutting machine to separate the polished knife plate and the knife frame plate and cut out the knife groove; 4. CNC processing, in which the positioning module and the buffer pad are made of bakelite through CNC processing, and the screw holes and positioning holes of the upper mold bottom plate, upper pad plate, knife plate, knife frame plate, lower pad plate and lower mold bottom plate, as well as the airtight part of the upper mold bottom plate are processed by CNC; 5. Abrasive: After assembling the lower pad plate and the lower die bottom plate, they are polished by a grinder; after assembling the upper pad plate and the upper die bottom plate, they are polished by a grinder; 6. Insert the knife, assemble the upper mold, and assemble the upper mold bottom plate, buffer pad plate, upper pad plate, silicone layer and knife plate from top to bottom; assemble the lower mold, and assemble the positioning module, knife sponge layer, knife frame plate, lower pad plate and lower mold bottom plate from top to bottom.

7. The method for making a paper tray cutting die according to claim 6, characterized in that: The positioning module is made of bakelite, and the lower die bottom plate, the knife frame plate and the lower pad plate are made of 45# steel.

8. The method for making a paper tray cutting die according to claim 6, characterized in that: The knife-beating plate, the upper pad plate and the upper mold bottom plate are made of 45# steel, and the buffer pad plate is made of bakelite.

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