Die cutting mechanism of die cutting machine for packaging box

Abstract

The utility model discloses a die-cutting mechanism of a die-cutting machine for packing boxes, which comprises a die-cutting case, an unwinding machine and a winding machine, the top of the die-cutting case is fixedly connected with an air cylinder, the output end of the air cylinder penetrates through the top of the die-cutting case and is fixedly connected with an upper die, and the outer wall of the upper die is fixedly connected with an L-shaped fixing piece. By arranging the L-shaped fixing piece, the rectangular rod, the cross-shaped sliding groove, the rectangular block, the threaded column, the connecting rod, the connecting plate, the rectangular moving block, the locking bolt, the downward pressing rods, the rubber sleeve and the nut, the upper die drives the multiple downward pressing rods to move up and down synchronously, a paper box subjected to die cutting is pressed downwards, the process that the paper box is separated from waste edges is achieved, and the production efficiency is improved. Meanwhile, the left-right position and the front-back position of the multiple pressing rods can be adjusted, paper boxes of different sizes can be pressed down conveniently, and therefore the paper boxes subjected to die cutting can be separated from waste conveniently, the die cutting efficiency is improved, and waste edges do not need to be manually removed.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging box processing equipment, in particular to a die-cutting mechanism of a die-cutting machine for packaging boxes. Background Technique

[0002] A flatbed die-cutting machine is a mechanical device that uses die-cutting blades to precisely cut materials, and is widely used in the cutting and processing fields of various materials, such as paper, plastic, leather, fabric, rubber, etc. In the packaging and printing industry, flatbed die-cutting machines are used to produce various packaging boxes, labels, cards, etc. This kind of equipment has technical characteristics such as high efficiency, precision, flexibility and safety, and can adjust the cutting pressure and speed according to the characteristics of different materials and cutting requirements to achieve flexible cutting operations.

[0003] In the prior art, when a relatively thin packaging box is die-cut by a flatbed die-cutting machine through up-and-down stamping, the paper material is passed through the lower part of the die-cutting blade. Through the unwinding and rewinding of the roll paper material, and with the up-and-down movement of the die-cutting blade, the desired outer shape of the packaging box is cut out on the paper material. Among them, due to problems such as too sharp corners after die-cutting, the paper is subject to excessive force, and the paper box has burrs, adhesion and other problems, which easily lead to the waste material not being able to automatically separate, and manual waste edge cleaning is required. The overall efficiency is low, the rejection rate is high, the labor intensity is large, and it is difficult to ensure the waste cleaning quality. Therefore, we propose a die-cutting mechanism of a die-cutting machine for packaging boxes to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a die-cutting mechanism of a die-cutting machine for packaging boxes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A die-cutting mechanism of a die-cutting machine for packaging boxes includes a die-cutting machine box, an unwinder and a rewinder. A cylinder is fixedly connected to the top of the die-cutting machine box. The output end of the cylinder penetrates the top of the die-cutting machine box and is fixedly connected to an upper die. An L-shaped fixing piece is fixedly connected to the outer wall of the upper die. A rectangular rod is fixedly connected to the outer wall of the L-shaped fixing piece. A cross-shaped sliding groove is opened on the outer wall of the rectangular rod. A rectangular block is slidably connected to the inner wall of the cross-shaped sliding groove. Two threaded columns are fixedly connected to the outer wall of the rectangular block. A connecting rod is fixedly connected to the bottom of the rectangular block. The bottom of the connecting rod is fixedly connected to a connecting plate with a hollow structure. A plurality of rectangular moving blocks are slidably connected to the inside of the connecting plate. A downward pressing mechanism is arranged at the bottom of the connecting plate.

[0007] Preferably, the pressing mechanism includes a plurality of pressing rods. A chute is formed at the top of the connecting plate, and locking bolts are slidably connected to the inner walls of the chute. The bottoms of the plurality of rectangular moving blocks are fixedly connected to the tops of the plurality of pressing rods respectively. A rubber sleeve is fixedly connected to the bottom of the pressing rod. By providing the pressing mechanism, downward force is applied to the die-cut carton to make it separate from the waste edge.

[0008] Preferably, a die-cutting knife is installed at the bottom of the upper die, a lower die is fixedly connected inside the die-cutting machine box, and a conveyor is fixedly installed on the outer wall of the die-cutting machine box. By providing the conveyor, the die-cut cartons are conveyed.

[0009] Preferably, the outer walls of the two threaded columns are slidably connected to the inner walls of the cross chutes, and nuts are threadedly sleeved on the outer walls of the two threaded columns. The position of the rectangular block is fixed by the extrusion between the nut and the rectangular rod after the nut rotates.

[0010] Preferably, a docking hole is formed at the top of the rectangular moving block, and the inner wall of the docking hole is threadedly connected to the bottom of the locking bolt. The rectangular moving block is fixed in the connecting plate by providing the locking bolt. After the locking bolt rotates downward through the docking hole, the screw head of the locking bolt presses against the top of the connecting plate.

[0011] Preferably, a strip-shaped groove is formed at the bottom of the connecting plate, and the inner wall of the strip-shaped groove is slidably connected to the outer walls of the plurality of pressing rods.

[0012] Preferably, two feeding and discharging grooves are formed in the outer wall of the die-cutting machine box, and the two feeding and discharging grooves assist the coiled paper material to enter and exit during winding.

[0013] Compared with the prior art, the advantages of the present utility model are as follows:

[0014] In this solution, by providing the L-shaped fixing member, rectangular rod, cross chute, rectangular block, threaded column, connecting rod, connecting plate, rectangular moving block, locking bolt, pressing rod, rubber sleeve and nut, the upper die drives the plurality of pressing rods to move up and down synchronously, and presses the die-cut cartons downward, realizing the process of the cartons separating from the waste edge. At the same time, the left and right and front and back positions of the plurality of pressing rods can be adjusted, facilitating the pressing of cartons of different sizes, thereby facilitating the separation of the die-cut cartons from the waste material, improving the die-cutting efficiency, and eliminating the need for manual waste edge cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for use in the following description of the specific embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 Schematic cross-sectional structure diagram of a die-cutting mechanism of a die-cutting machine for a packaging box proposed by the present utility model;

[0017] Figure 2 Partial three-dimensional structure diagram of a die-cutting mechanism of a die-cutting machine for a packaging box proposed by the present utility model;

[0018] Figure 3 For the die-cutting mechanism of a die-cutting machine for a packaging box proposed by the present utility model Figure 1 Enlarged structure diagram of part A in

[0019] In the figure: 1, die-cutting machine box; 2, unwinder; 3, rewinder; 4, cylinder; 5, upper die; 6, die-cutting knife; 7, lower die; 8, conveyor; 9, L-shaped fixing part; 10, rectangular rod; 11, cross chute; 12, rectangular block; 13, threaded column; 14, connecting rod; 15, connecting plate; 16, rectangular moving block; 17, locking bolt; 18, pressing rod; 19, rubber sleeve; 20, nut. Specific implementation manner

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the protection scope of the present utility model.

[0021] As shown by Figures 1 - 3 , it relates to a die-cutting mechanism of a die-cutting machine for a packaging box, including a die-cutting machine box 1, an unwinder 2 and a rewinder 3. The unwinder 2 and the rewinder 3 are rotated by existing driving devices, and an encoder is installed to control their angular displacement and rotational speed. Two feeding and discharging slots are opened on the outer wall of the die-cutting machine box 1. A cylinder 4 is fixedly connected to the top of the die-cutting machine box 1. The output end of the cylinder 4 penetrates the top of the die-cutting machine box 1 and is fixedly connected to an upper die 5. The cylinder 4 drives the upper die 5 to move up and down. A die-cutting knife 6 is installed at the bottom of the upper die 5. The up and down movement of the cylinder 4 uses the die-cutting knife 6 to die-cut the paper material during intermittent winding.

[0022] A lower die 7 is fixedly connected inside the die-cutting machine box 1. A conveyor 8 is fixedly installed on the outer wall of the die-cutting machine box 1. An L-shaped fixing part 9 is fixedly connected to the outer wall of the upper die 5, and a rectangular rod 10 is fixedly connected to the outer wall of the L-shaped fixing part 9.

[0023] The outer wall of the rectangular rod 10 is provided with a cross-shaped sliding groove 11. The inner wall of the cross-shaped sliding groove 11 is slidably connected with a rectangular block 12. The outer wall of the rectangular block 12 is fixedly connected with two threaded columns 13. The outer walls of the two threaded columns 13 are both slidably connected with the inner wall of the cross-shaped sliding groove 11. The outer walls of the two threaded columns 13 are both sleeved with nuts 20 in a threaded manner. The rectangular block 12 is fixed on the rectangular rod 10 through the threaded columns 13 and the nuts 20.

[0024] The bottom of the rectangular block 12 is fixedly connected with a connecting rod 14. The bottom of the connecting rod 14 is fixedly connected with a connecting plate 15 of a hollow structure. A plurality of rectangular moving blocks 16 are slidably connected inside the connecting plate 15. The movement of the plurality of rectangular moving blocks 16 can change the positions of the plurality of pressing rods 18 and the plurality of rubber sleeves 19.

[0025] A pressing mechanism is arranged at the bottom of the connecting plate 15. The pressing mechanism includes a plurality of pressing rods 18. Sliding grooves are formed in the top of the connecting plate 15. The inner walls of the sliding grooves are both slidably connected with locking bolts 17. Docking holes are formed in the tops of the rectangular moving blocks 16. The inner walls of the docking holes are threadedly connected with the bottoms of the locking bolts 17. The sliding grooves assist the locking bolts 17 to move.

[0026] The bottoms of the plurality of rectangular moving blocks 16 are respectively fixedly connected with the tops of the plurality of pressing rods 18. A strip-shaped groove is formed in the bottom of the connecting plate 15. The inner wall of the strip-shaped groove is slidably connected with the outer walls of the plurality of pressing rods 18. The strip-shaped groove is in an overall long rectangular structure. The bottom of the pressing rod 18 is fixedly connected with a rubber sleeve 19. The rubber sleeve 19 is made of rubber material and has elasticity to avoid rigid contact with the die-cut paper box.

[0027] Working principle: When in use, the unwinder 2 supports and rotates the rolled paper material, and cooperates with the winder 3 to wind up the waste edges. The paper material is passed through between the upper die 5 and the lower die 7. The paper material is located on the top of the lower die 7. As the cylinder 4 moves up and down, the die-cutting knife 6 die-cuts the intermittently wound paper material. At the same time, the die-cut carton moves to the right as the winder 3 rotates. After the upper die 5 moves up and down, it drives the L-shaped fixing part 9 and the rectangular rod 10 to move up and down. The up and down movement of the rectangular rod 10 drives the rectangular block 12 and the connecting rod 14 to move up and down. The up and down movement of the connecting rod 14 drives the connecting plate 15 and multiple pressing rods 18 to move up and down. After the multiple pressing rods 18 press down, they press down on the die-cut carton to realize the process of the carton separating from the waste edge, and it falls onto the conveyor 8 and is conveyed outwards through the conveyor 8. During this process, when pressing down on cartons of different sizes, the position fixing of the threaded column 13 can be released by rotating the nut 20, and the rectangular block 12 is moved through the cross-shaped chute 11 to drive the connecting rod 14 to move, adjusting the left and right positions of the connecting plate 15 and the multiple pressing rods 18. And the position fixing of the rectangular moving block 16 can be released by rotating the locking bolt 17, and the position of the moving rectangular moving block 16 is moved to adjust the distance between the multiple rectangular moving blocks 16, driving the multiple pressing rods 18 and the rubber sleeves 19 to move, so as to facilitate the separation of the die-cut carton from the waste material.

[0028] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Plus, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. And for the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or through conventional experimental methods.

[0029] Although the embodiments of the present application have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A die-cutting mechanism for a die-cutting machine used for a packaging box, comprising a die-cutting machine case (1), an unwinder (2) and a rewinder (3), characterized in that, A cylinder (4) is fixedly connected to the top of the die-cutting machine case (1). The output end of the cylinder (4) penetrates through the top of the die-cutting machine case (1) and is fixedly connected to an upper die (5). An L-shaped fixing member (9) is fixedly connected to the outer wall of the upper die (5). A rectangular rod (10) is fixedly connected to the outer wall of the L-shaped fixing member (9). A cross-shaped sliding groove (11) is formed in the outer wall of the rectangular rod (10). A rectangular block (12) is slidably connected to the inner wall of the cross-shaped sliding groove (11). Two threaded columns (13) are fixedly connected to the outer wall of the rectangular block (12). A connecting rod (14) is fixedly connected to the bottom of the rectangular block (12). A connecting plate (15) with a hollow structure is fixedly connected to the bottom of the connecting rod (14). A plurality of rectangular moving blocks (16) are slidably connected to the inside of the connecting plate (15). A pressing mechanism is provided at the bottom of the connecting plate (15).

2. The die-cutting mechanism of a die-cutting machine for a packaging box according to claim 1, characterized in that, The pressing mechanism includes a plurality of pressing rods (18). A sliding groove is formed in the top of the connecting plate (15). Locking bolts (17) are slidably connected to the inner walls of the sliding grooves. The bottoms of the plurality of rectangular moving blocks (16) are respectively fixedly connected to the tops of the plurality of pressing rods (18). A rubber sleeve (19) is fixedly connected to the bottom of the pressing rod (18).

3. The die-cutting mechanism of a die-cutting machine for a packaging box according to claim 1, characterized in that, A die-cutting knife (6) is installed at the bottom of the upper die (5). A lower die (7) is fixedly connected to the inside of the die-cutting machine case (1). A conveyor (8) is fixedly installed on the outer wall of the die-cutting machine case (1).

4. The die-cutting mechanism of a die-cutting machine for a packaging box according to claim 1, characterized in that, The outer walls of the two threaded columns (13) are slidably connected to the inner walls of the cross-shaped sliding groove (11). Nuts (20) are threadedly sleeved on the outer walls of the two threaded columns (13).

5. The die-cutting mechanism of a die-cutting machine for a packaging box according to claim 2, characterized in that, A docking hole is formed in the top of the rectangular moving block (16). The inner wall of the docking hole is threadedly connected to the bottom of the locking bolt (17).

6. The die-cutting mechanism of a die-cutting machine for a packaging box according to claim 2, characterized in that, A strip-shaped groove is formed in the bottom of the connecting plate (15). The inner wall of the strip-shaped groove is slidably connected to the outer walls of the plurality of pressing rods (18).

7. The die-cutting mechanism of a die-cutting machine for a packaging box according to claim 1, characterized in that, Two feeding and discharging grooves are formed in the outer wall of the die-cutting machine case (1).

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