A device for edge pressing of a packaging box

Abstract

This utility model relates to the field of packaging box manufacturing and processing, and discloses a pressing device for packaging box production. It includes several receiving grooves, each located at one of the four corners of the top surface of a mold. Each receiving groove has a placement groove on its inner bottom surface. A connecting post is inserted into the inner wall of each placement groove, and a stop post is fixed to the top of each connecting post. The stop post is slidably disposed within the receiving groove. Two sealing rings are fixed to the outer wall of each connecting post, and these sealing rings contact the inner wall of the placement groove. A compression spring is connected to the bottom of each connecting post, and the other end of the compression spring is connected to the inner bottom surface of the placement groove. In this utility model, through the synergistic action of the connecting post, the stop post, the sealing rings, and the compression spring, the packaging box can be uniformly ejected from the mold after pressing, ensuring a smooth process of the packaging box leaving the mold and effectively preventing the edges of the packaging box from collapsing or wrinkling due to forced ejection.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging box production and processing, specifically to a pressing device for packaging box production. Background Technology

[0002] Packaging boxes are boxes used to package products. With the rapid development of modern industry and the continuous improvement of people's living standards, the demand for packaging boxes will continue to increase. Edge pressing is necessary during the production and processing of packaging boxes.

[0003] Chinese patent with publication number CN215360132U discloses a pressing device for packaging box production, which relates to the field of packaging box production and processing. It includes a workbench, a support plate, a cantilever frame, a first hydraulic press, a second hydraulic press, an active pressing rod, a driven pressing rod, a first pressure plate, a second pressure plate, a rubber gasket, a packaging box mold, and a table.

[0004] In the above scheme, by starting the first hydraulic press and the second hydraulic press, the edges of the cardboard box are pressed into sharp corners, which has the following disadvantages: after the packaging box is pressed, the cardboard box is tightly pressed against the mold, and there is no ejection structure to assist in separation. It needs to be manually peeled off, which can easily lead to deformation of the newly pressed edges. Utility Model Content

[0005] The purpose of this utility model is to provide a pressing device for packaging box production, so as to solve the problem that after the packaging box is pressed, the cardboard box is tightly pressed and adhered to the mold, and there is no ejection structure to assist in separation, which requires manual peeling and easily leads to deformation of the pressed edges.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a pressing device for packaging box production, comprising a plurality of receiving grooves, wherein the plurality of receiving grooves are respectively opened at the four corners of the top surface of the mold, a placement groove is opened on the inner bottom surface of the receiving groove, a connecting column is inserted into the inner wall of the placement groove, a stop column is fixed at the top of the connecting column, the stop column is slidably disposed in the receiving groove, two sealing rings are fixed on the outer wall of the connecting column, the sealing rings are in contact with the inner wall of the placement groove, a compression spring is connected to the bottom end of the connecting column, and the other end of the compression spring is connected to the inner bottom surface of the placement groove.

[0007] Preferably, a workbench is fixed to the bottom surface of the mold, and a plurality of first cylinders are fixed to the top surface of the workbench. A first limiting plate is fixed to one end of the telescopic rod of the first cylinder on the front and rear sides, and a second limiting plate is fixed to one end of the telescopic rod of the first cylinder on the left and right sides. A mounting frame is fixed to the top surface of the workbench, and a second cylinder is fixed to the mounting frame. A pressure plate is fixed to one end of the telescopic rod of the second cylinder.

[0008] Preferably, the first limiting plate, the second limiting plate, and the pressure plate are all fixed with pressure foam.

[0009] Preferably, the inner wall of the receiving groove has two mounting grooves, and the inner wall of the mounting groove is rotatably connected to a roller, which contacts the outer wall of the abutting column.

[0010] Preferably, the inner wall of the receiving groove has two sliding grooves, and the outer wall of the abutting column has two sliding columns fixed, which are slidably connected in the sliding grooves.

[0011] Preferably, the top surface of the mounting bracket has two limiting holes, and the top surface of the pressure plate has two limiting posts fixed therein, the limiting posts being inserted into the limiting holes.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Through the synergistic action of the connecting column, abutting column, sealing ring, and compression spring, the packaging box can be ejected from the mold at a uniform speed after the edges are pressed, ensuring a smooth process of the packaging box leaving the mold. This effectively prevents the edges of the packaging box from collapsing or wrinkling due to hard ejection, avoiding structural damage caused by impact, and significantly improving the edge pressing effect and product quality. 2. The soft material of the foam can replace the hard surfaces of the first and second limiting plates and the pressing plate in direct contact with the outer wall of the packaging box, avoiding scratches, indentations, or coating peeling caused by hard friction.

[0014] Second, the rollers reduce friction between the abutting column and the inner wall of the receiving groove, making the abutting column move more smoothly and improving the ejection efficiency of the packaging box. The coordinated action of the sliding column and sliding groove allows the abutting column to move up and down along a predetermined trajectory, ensuring stability during movement and effectively preventing wobbling, thus guaranteeing the ejection effect of the packaging box. The coordinated action of the limiting column and limiting hole allows the pressure plate to move up and down along a predetermined trajectory, ensuring stability during movement and effectively preventing positional deviation, thus guaranteeing the edge pressing effect of the packaging box. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 This is a breakdown diagram of an embodiment.

[0017] Figure 3 This is a schematic diagram showing the disassembled pressure plate and limiting post in an embodiment.

[0018] Figure 4 For the example Figure 2 Enlarged diagram of point A in the middle.

[0019] In the diagram: 1. Receiving groove; 2. Mold; 3. Placement groove; 4. Connecting column; 5. Abutting column; 6. Sealing ring; 7. Compression spring; 8. Worktable; 9. First cylinder; 10. First limiting plate; 11. Second limiting plate; 12. Second cylinder; 13. Pressure plate; 14. Pressing foam; 15. Mounting groove; 16. Roller; 17. Sliding groove; 18. Sliding column; 19. Limiting hole; 20. Limiting column. Detailed Implementation

[0020] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-4 As shown, a pressing device for packaging box production includes several receiving grooves 1, which are respectively opened at the four corners of the top surface of the mold 2. A placement groove 3 is opened on the inner bottom surface of the receiving groove 1. A connecting post 4 is inserted into the inner wall of the placement groove 3. A stop post 5 is fixed to the top of the connecting post 4 and slidably disposed within the receiving groove 1. Two sealing rings 6 are fixed to the outer wall of the connecting post 4, and the sealing rings 6 are in contact with the inner wall of the placement groove 3. A compression spring 7 is connected to the bottom end of the connecting post 4, and the other end of the compression spring 7 is in contact with the interior of the placement groove 3. The bottom surfaces are connected. A workbench 8 is fixed to the bottom surface of the mold 2. Several first cylinders 9 are fixed to the top surface of the workbench 8. A first limiting plate 10 is fixed to one end of the telescopic rod of the first cylinder 9 on the front and rear sides. A second limiting plate 11 is fixed to one end of the telescopic rod of the first cylinder 9 on the left and right sides. A mounting frame is fixed to the top surface of the workbench 8. A second cylinder 12 is fixed to the mounting frame. A pressure plate 13 is fixed to one end of the telescopic rod of the second cylinder 12. Several first cylinders 9 share the same hydraulic pump and the flow is evenly distributed through a synchronization valve.

[0022] In use, when it is necessary to press the edges of the packaging box, firstly, the packaging box blank is precisely fastened to the top of the mold 2, ensuring that the inner wall of the packaging box makes effective contact with the four pre-set abutment posts 5 of the mold 2 to achieve initial positioning;

[0023] Subsequently, the first cylinder 9 and the second cylinder 12 are activated: the first cylinder 9 drives the two sets of first limiting plates 10 and second limiting plates 11 to approach the packaging box synchronously along the axial direction, forming lateral constraints. At the same time, the second cylinder 12 drives the pressure plate 13 to move downward in the vertical direction, gradually approaching the top of the packaging box. Under the continuous output force of the first cylinder 9 and the second cylinder 12, the first limiting plate 10, the second limiting plate 11 and the pressure plate 13 make flexible contact with the outer wall of the packaging box through the pressure foam 14 on their surfaces, which not only ensures the positioning stability but also avoids damage to the surface of the packaging box.

[0024] During this process, the pressure plate 13 simultaneously applies downward pressure to the abutting column 5, causing the connecting column 4 to compress the air in the placement groove 3 and the compression spring 7 under the sealing action of the sealing ring 6. The compressed air in the placement groove 3 forms a stable air cushion damping, achieving pressure buffering, until the top surface of the abutting column 5 is flush with the top surface of the mold 2, completing the precise pressing and shaping of the edge of the packaging box.

[0025] After the edge pressing operation is completed, the first cylinder 9 and the second cylinder 12 are closed. The first cylinder 9 and the second cylinder 12 will drive the first limiting plate 10, the second limiting plate 11 and the pressure plate 13 to reset synchronously. As the pressure plate 13 removes the pressure on the abutting column 5, the compression spring 7 in the placement groove 3 releases its elastic potential energy and works in conjunction with the compressed air to drive the abutting column 5 to move upward smoothly through the gradual force transmission, so that the packaging box is separated from the mold 2 at a uniform speed. Then the operator can remove the packaging box and complete the edge pressing operation.

[0026] Through the coordinated action of connecting column 4, abutting column 5, sealing ring 6 and compression spring 7, the packaging box can be ejected from the mold 2 at a uniform speed after the edge is pressed, ensuring that the process of the packaging box leaving the mold 2 is smooth, effectively preventing the edge of the packaging box from collapsing or wrinkling due to hard ejection, avoiding structural damage to the packaging box caused by force impact, and significantly improving the edge pressing effect and product quality of the packaging box.

[0027] like Figures 1-4 As shown, foam pads 14 are fixed on the first limiting plate 10, the second limiting plate 11, and the pressure plate 13. Two mounting grooves 15 are opened on the inner wall of the receiving groove 1. Rollers 16 are rotatably connected to the inner wall of the mounting groove 15. The rollers 16 are in contact with the outer wall of the abutting column 5. Two sliding grooves 17 are opened on the inner wall of the receiving groove 1. Two sliding columns 18 are fixed on the outer wall of the abutting column 5. The sliding columns 18 are slidably connected in the sliding grooves 17. Two limiting holes 19 are opened on the top surface of the mounting frame. Two limiting columns 20 are fixed on the top surface of the pressure plate 13. The limiting columns 20 are inserted into the limiting holes 19.

[0028] In use, the soft material of the foam 14, when in contact with the outer wall of the packaging box, can replace the hard surfaces of the first limiting plate 10, the second limiting plate 11, and the pressure plate 13, avoiding scratches, indentations, or coating peeling caused by hard friction. The rollers 16 reduce the friction between the abutting post 5 and the inner wall of the receiving groove 1, making the abutting post 5 move more smoothly and improving the ejection efficiency of the packaging box. The coordinated action of the sliding post 18 and the sliding groove 17 allows the abutting post 5 to move up and down along a predetermined trajectory, ensuring its stability during movement and effectively preventing wobbling, thus guaranteeing the ejection effect of the packaging box. The coordinated action of the limiting post 20 and the limiting hole 19 allows the pressure plate 13 to move up and down along a predetermined trajectory, ensuring its stability during movement and effectively preventing positional deviation, thus guaranteeing the edge pressing effect of the packaging box.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressing device for packaging box production, comprising a plurality of receiving grooves (1), wherein the plurality of receiving grooves (1) are respectively opened at the four corners of the top surface of a mold (2), characterized in that, The inner bottom surface of the receiving groove (1) is provided with a placement groove (3). A connecting column (4) is inserted into the inner wall of the placement groove (3). A stop column (5) is fixed at the top of the connecting column (4). The stop column (5) is slidably disposed in the receiving groove (1). Two sealing rings (6) are fixed on the outer wall of the connecting column (4). The sealing rings (6) are in contact with the inner wall of the placement groove (3). A compression spring (7) is connected to the bottom end of the connecting column (4). The other end of the compression spring (7) is connected to the inner bottom surface of the placement groove (3).

2. The edge-pressing device for packaging box production according to claim 1, characterized in that: The bottom surface of the mold (2) is fixed with a workbench (8), and the top surface of the workbench (8) is fixed with a plurality of first cylinders (9). The first limit plate (10) is fixed at one end of the telescopic rod of the first cylinder (9) on the front and rear sides, and the second limit plate (11) is fixed at one end of the telescopic rod of the first cylinder (9) on the left and right sides. The top surface of the workbench (8) is fixed with a mounting frame, and the second cylinder (12) is fixed on the mounting frame. The pressure plate (13) is fixed at one end of the telescopic rod of the second cylinder (12).

3. The edge pressing device for a packaging box production according to claim 2, characterized in that: Pressing foam (14) is fixed on the first limiting plate (10), the second limiting plate (11) and the pressure plate (13).

4. The edge pressing device for a packaging box production according to claim 1, characterized in that: The inner wall of the receiving groove (1) has two mounting grooves (15), and the inner wall of the mounting groove (15) is rotatably connected to a roller (16), which is in contact with the outer wall of the abutting column (5).

5. The edge-pressing device for packaging box production according to claim 4, characterized in that: The inner wall of the receiving groove (1) has two sliding grooves (17), and the outer wall of the abutting column (5) has two sliding columns (18), which are slidably connected in the sliding grooves (17).

6. The edge pressing device for a packaging box production according to claim 2, characterized in that: The mounting bracket has two limiting holes (19) on its top surface, and the pressure plate (13) has two limiting posts (20) fixed on its top surface. The limiting posts (20) are inserted into the limiting holes (19).

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