Cutting mechanism for plastic packaging box

Abstract

The utility model discloses a cutting mechanism for a plastic packaging box, and relates to the technical field of plastic box production. Comprising a support, a push plate is arranged in the support, a double-shaft air cylinder is installed on the rear side of the support, the output end of the double-shaft air cylinder is connected with the push plate, a fixing plate is installed on the top of the support, a stripping opening is formed in the fixing plate, and a lower die cutting plate is installed on the fixing plate. According to the cutting mechanism for the plastic packaging box, the platy plastic box is placed in the positioning through hole of the lower die cutting plate to be positioned, the upper die cutting plate is driven by the pneumatic cylinder to press downwards, the upper die cutting edge and the lower die cutting edge are meshed to form shearing force for cutting, during cutting, a polyurethane elastomer column is stressed and compressed, an ejector pin is exposed to eject out the plastic box, and then the plastic box is cut. And when the plastic boxes are stacked to a certain height, the push plate is driven by the double-shaft air cylinder to push out the plastic boxes, so that the subsequent storage or packaging operation is facilitated, the manual operation amount is reduced, and the operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic box production, in particular to a cutting mechanism for plastic packaging boxes. Background Technique

[0002] Plastic boxes, namely boxed packaging containers made of plastic, are widely used in various packaging industries due to their advantages of being easy to mold. As long as the mold is replaced, different varieties of containers can be obtained, which is conducive to mass production, and the packaging effect is good. Various types of packaging containers can be made according to needs. Taking food packaging boxes as an example, food packaging boxes are relatively common plastic products in our lives, which greatly improve the convenience of taking out and packing food daily.

[0003] In the related technology, the main material of food packaging boxes is PET, and its preparation process is as follows: After the PET sheet is softened by hot melting, it is placed directly above the mold. Through the thermoforming equipment, after edge pressing, vacuum thermoforming, and cutting, food packaging boxes can be made.

[0004] As is well known, plastic boxes are connected to each other in a row after compression molding and need to be cut into independent individuals. Subsequently, they also need to be stacked for storage to facilitate transportation and storage. These two processes are carried out independently at different workstations, resulting in low work efficiency. Content of the Utility Model

[0005] The utility model provides a cutting mechanism for plastic packaging boxes to solve the problems in the background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A cutting mechanism for plastic packaging boxes includes a support. A push plate is arranged inside the support. A double-shaft cylinder is installed at the rear side of the support, and the output end of the double-shaft cylinder is connected to the push plate. A fixed plate is installed at the top of the support, and a material discharging opening is formed on the fixed plate. A lower die cutting plate is installed on the fixed plate, and positioning through holes are evenly distributed on the lower die cutting plate. A lower die cutting edge is provided at the top of the positioning through holes. Guide columns are embedded around the fixed plate, and a pressing plate is movably sleeved on the guide columns. Urethane columns are installed around the bottom of the pressing plate, and an upper die cutting plate is installed at the bottom of the urethane columns. Through holes are evenly distributed on the upper die cutting plate, and an upper die cutting edge is provided at the bottom of the through holes. Thumb tacks are embedded at the bottom of the pressing plate, and the thumb tacks pass through the through holes. A top plate is installed at the top of the guide columns, and a pneumatic cylinder is installed on the top plate. The output end of the pneumatic cylinder is connected to the pressing plate.

[0007] Further, the cross-section of the support is U-shaped, and fixing holes are provided on both sides of the support.

[0008] Further, the positions of the material discharging opening and the positioning through holes correspond to each other and the number of the material discharging opening is the same as that of the positioning through holes.

[0009] Further, a limit post is installed at the top of the upper die cutting plate, and the limit posts are located around it.

[0010] Further, the positions of the through ports correspond to the positioning through holes, and the number of the through ports is the same as that of the positioning through holes.

[0011] Further, the positions of the upper die cutting edges correspond to those of the lower die cutting edges, and the ejector pin is centered in the through port.

[0012] Compared with the prior art, the utility model provides a cutting mechanism for plastic packaging boxes, which has the following beneficial effects:

[0013] For the cutting mechanism for plastic packaging boxes, a plate-shaped plastic box is placed in the positioning through holes of the lower die cutting plate for positioning. The upper die cutting plate is driven by a pneumatic cylinder to press down, so that the upper die cutting edges and the lower die cutting edges are engaged to form a shearing force for cutting. During cutting, the urethane rubber column is compressed by force, so that the ejector pin is exposed to eject the plastic box. The ejected plastic boxes fall and stack from the material discharging port. When the stack reaches a certain height, the push plate is driven by a double-acting cylinder to push out the plastic boxes, which is beneficial to subsequent storage or packaging operations, reduces the amount of manual operation, and improves the operation efficiency. Description of the Drawings

[0014] Figure 1 is a schematic structural view of the utility model;

[0015] Figure 2 is a top view of the lower die cutting plate of the utility model;

[0016] Figure 3 is a side view of the utility model.

[0017] In the figure: 1, support; 2, push plate; 3, double-acting cylinder; 4, fixing plate; 5, material discharging port; 6, lower die cutting plate; 7, positioning through hole; 8, lower die cutting edge; 9, guide post; 10, pressing plate; 11, urethane rubber column; 12, upper die cutting plate; 13, through port; 14, upper die cutting edge; 15, ejector pin; 16, top plate; 17, pneumatic cylinder; 18, fixing hole; 19, limit post. Detailed Embodiment

[0018] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0019] Please refer to Figures 1-3, the present utility model discloses a cutting mechanism for a plastic packaging box, including a support 1. A push plate 2 is arranged inside the support 1. A double-axis air cylinder 3 is installed at the rear side of the support 1, and the output end of the double-axis air cylinder 3 is connected to the push plate 2. A fixed plate 4 is installed on the top of the support 1, and a blanking port 5 is opened on the fixed plate 4. A lower die-cutting plate 6 is installed on the fixed plate 4, and positioning through holes 7 are evenly distributed on the lower die-cutting plate 6. A lower die-cutting edge 8 is arranged at the top of the positioning through hole 7. Guide posts 9 are inlaid around the fixed plate 4, and a pressing plate 10 is movably sleeved on the guide posts 9. Four-week bottom of the pressing plate 10 is installed with polyurethane rubber columns 11, and an upper die-cutting plate 12 is installed at the bottom of the polyurethane rubber columns 11. Through holes 13 are evenly distributed on the upper die-cutting plate 12, and an upper die-cutting edge 14 is arranged at the bottom of the through hole 13. A thimble 15 is inlaid at the bottom of the pressing plate 10, and the thimble 15 passes through the through hole 13. Place the plate-shaped plastic box in the positioning through hole 7 of the lower die-cutting plate 6 for positioning. Drive the upper die-cutting plate 12 to press down through the air cylinder 17, so that the upper die-cutting edge 14 and the lower die-cutting edge 8 bite to form a shearing force for cutting. During cutting, the polyurethane rubber column 11 is compressed by force, so that the thimble 15 is exposed to eject the plastic box. The ejected plastic box falls and stacks from the blanking port 5. When stacked to a certain height, drive the push plate 2 through the double-axis air cylinder 3 to push out the plastic box, which is beneficial to subsequent storage or packaging operations, reduces the amount of manual operation, and improves the operation efficiency. The top end of the guide post 9 is installed with a top plate 16, and an air cylinder 17 is installed on the top plate 16. The output end of the air cylinder 17 is connected to the pressing plate 10.

[0020] Specifically, the cross-section of the support 1 is U-shaped, and fixing holes 18 are arranged on both sides of the support 1.

[0021] In this implementation scheme, the support 1 is a support structure. Through the fixing holes 18 and bolts, the cutting mechanism can be installed on the production line.

[0022] Specifically, the position of the blanking port 5 corresponds to the positioning through hole 7 and is the same as the number of the positioning through holes 7.

[0023] In this implementation scheme, during cutting, the polyurethane rubber column 11 is compressed by force, so that the thimble 15 is exposed to eject the plastic box. The ejected plastic box falls and stacks from the blanking port 5.

[0024] Specifically, a limiting column 19 is installed on the top of the upper die-cutting plate 12, and the limiting column 19 is located around it.

[0025] In this implementation scheme, the limiting column 19 is used to limit the compression stroke of the polyurethane rubber column 11, so as to protect the polyurethane rubber column 11 from damage.

[0026] Specifically, the position of the through hole 13 corresponds to the positioning through hole 7 and is the same as the number of the positioning through holes 7.

[0027] In this embodiment, the through opening 13 is a yielding structure, so that the ejector pin 15 is exposed, and the plastic box can be ejected.

[0028] Specifically, the upper die cutting edge 14 corresponds to the position of the lower die cutting edge 8 , and the ejector pin 15 is centrally located in the through opening 13 .

[0029] In this embodiment, the upper die-cutting plate 12 is pressed downward by the pneumatic cylinder 17, so that the upper die-cutting edge 14 and the lower die-cutting edge 8 are engaged with each other to form a shear force for cutting.

[0030] When in use, the plate-shaped plastic box is placed in the positioning through hole 7 of the lower die-cutting plate 6 for positioning, and the upper die-cutting plate 12 is pressed downward by the pneumatic cylinder 17, so that the upper die-cutting edge 14 and the lower die-cutting edge 8 are engaged with each other to form a shear force for cutting. During cutting, the rubber column 11 is compressed by force, so that the ejector pin 15 is exposed to eject the plastic box. The ejected plastic box falls from the discharge port 5 and is stacked. When stacked to a certain height, the push plate 2 is driven by the double-axis cylinder 3 to push the plastic box out, which is beneficial to subsequent storage or packaging operations, reduces the amount of manual operation, and improves work efficiency.

[0031] To sum up, the cutting mechanism for the plastic packaging box places the plate-shaped plastic box in the positioning through hole 7 of the lower die-cutting plate 6 for positioning, and drives the upper die-cutting plate 12 to be pressed down by the pneumatic cylinder 17, so that the upper die-cutting edge 14 and the lower die-cutting edge 8 are engaged with each other to form a shear force for cutting. During cutting, the rubber column 11 is compressed by force, so that the ejector pin 15 is exposed to eject the plastic box. The ejected plastic box falls from the ejection port 5 and is stacked. When stacked to a certain height, the push plate 2 is driven by the double-axis cylinder 3 to push the plastic box out, which is beneficial to subsequent storage or packaging operations, reduces the amount of manual operation, and improves work efficiency.

[0032] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cutting mechanism for a plastic packaging box, including a support (1), characterized in that: A push plate (2) is arranged inside the support (1). A double-acting cylinder (3) is installed at the rear side of the support (1), and the output end of the double-acting cylinder (3) is connected to the push plate (2). A fixed plate (4) is installed at the top of the support (1), and a stripping port (5) is formed in the fixed plate (4). A lower die-cutting plate (6) is installed on the fixed plate (4), and positioning through holes (7) are evenly distributed on the lower die-cutting plate (6). A lower die-cutting edge (8) is provided at the top of the positioning through hole (7). Guide posts (9) are inlaid around the fixed plate (4), and a pressure plate (10) is movably sleeved on the guide posts (9). Urethane rubber columns (11) are installed around the bottom of the pressure plate (10), and an upper die-cutting plate (12) is installed at the bottom of the urethane rubber columns (11). Through holes (13) are evenly distributed on the upper die-cutting plate (12), and an upper die-cutting edge (14) is provided at the bottom of the through hole (13). Thumb tacks (15) are inlaid at the bottom of the pressure plate (10), and the thumb tacks (15) pass through the through holes (13). A top plate (16) is installed at the top end of the guide post (9), and a pneumatic cylinder (17) is installed on the top plate (16). The output end of the pneumatic cylinder (17) is connected to the pressure plate (10).

2. The cutting mechanism for a plastic packaging box according to claim 1, wherein: The cross-section of the support (1) is U-shaped, and fixing holes (18) are provided on both sides of the support (1).

3. The cutting mechanism for a plastic packaging box according to claim 1, wherein: The position of the stripping port (5) corresponds to that of the positioning through hole (7) and the number of the stripping port (5) is the same as that of the positioning through hole (7).

4. A cutting mechanism for a plastic packaging box according to claim 1, characterized in that: Limit posts (19) are installed at the top of the upper die-cutting plate (12), and the limit posts (19) are located around it.

5. The cutting mechanism for a plastic packaging box according to claim 1, wherein: The position of the through hole (13) corresponds to that of the positioning through hole (7) and the number of the through hole (13) is the same as that of the positioning through hole (7).

6. The cutting mechanism for a plastic packaging box according to claim 1, characterized in that: The position of the upper die-cutting edge (14) corresponds to that of the lower die-cutting edge (8), and the thumb tack (15) is centered in the through hole (13).

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