A demolding mechanism of a vacuum blister machine for producing a packaging box

Abstract

The utility model discloses a demoulding mechanism of vacuum blister machine for packaging box production, including processing station, two support legs are fixedly installed to the processing station bottom wall, the lower mould seat is slidably installed to the processing station upper end face, the both sides outer wall of processing station is all fixedly installed with the fixed plate, two the fixed plate inner wall all are fixedly installed with the clamping plate through telescopic mechanism, the both sides inner wall of lower mould seat all are slidably installed with the placing plate through the joint mechanism, the double -end screw is rotatably installed in the lower mould seat, the motor that is connected with double -end screw is fixedly installed to the lower mould seat outer wall, the limit rod is fixedly installed in the lower mould seat inside. The utility model discloses through setting double -end screw, limit rod and first link frame etc. component, adopt motor drive double -end screw rotation, through the linkage structure of moving sleeve, first link frame, link plate and second link frame, can drive placing board lifting fast, makes single demoulding time greatly shorten to improve demoulding efficiency greatly.

Description

Technical Field

[0001] This utility model relates to the field of packaging box production technology, and in particular to a demolding mechanism for a vacuum forming machine used in packaging box production. Background Technology

[0002] Packaging boxes are containers designed to protect products, facilitate storage and transportation, and promote sales. They are usually made of materials such as paper, iron, wood, cloth, and plastic.

[0003] Vacuum forming is a common process in the production of packaging boxes. Demolding is a key step in this process, and its efficiency directly determines the production rhythm. Currently, the demolding mechanism of vacuum forming machines on the market usually adopts a manual assistance method for demolding. This demolding method not only leads to a decrease in daily output, but also makes the packaging boxes susceptible to warping and deformation due to residual temperature caused by the excessive time they stay in the mold. At the same time, frequent manual intervention increases the risk of operational errors, which has a dual impact on product quality stability and production continuity, and is not practical enough. Therefore, it is necessary to redesign a demolding mechanism for vacuum forming machines used in packaging box production to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a demolding mechanism for a vacuum forming machine used in packaging box production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A demolding mechanism for a vacuum forming machine used in packaging box production includes a processing table. Two support legs are fixedly installed on the bottom wall of the processing table. A lower mold base is slidably installed on the upper surface of the processing table. Fixing plates are fixedly installed on both outer walls of the processing table. Clamping plates are fixedly installed on the inner walls of both fixing plates via a telescopic mechanism. Placement plates are slidably installed on both inner walls of the lower mold base via a connecting mechanism. A double-ended screw is rotatably installed inside the lower mold base. A motor connected to the double-ended screw is fixedly installed on the outer wall of the lower mold base. A limit rod is fixedly installed inside the lower mold base. Two movable sleeves are threadedly installed, and the limiting rod slides through the two movable sleeves. A first connecting frame is fixedly installed on the upper end face of each of the two movable sleeves. A second connecting frame is rotatably installed inside each of the two first connecting frames through a connecting plate. The upper end face of the second connecting frame is fixedly connected to the bottom wall of the placement plate. A support plate is fixedly installed on the upper end face of the processing table. A cylinder is fixedly installed on the upper end face of the support plate through a mounting frame. An upper mold base is fixedly installed on the telescopic end of the cylinder. A vacuum pump is fixedly installed on the upper end face of the support plate. A telescopic hose that mates with the upper mold base is fixedly installed on the outer wall of the vacuum pump.

[0006] Preferably, the telescopic mechanism includes an electric actuator fixedly installed on the inner wall of the fixed plate, and the telescopic end of the electric actuator is fixedly connected to the outer wall of the clamping plate.

[0007] Preferably, the connecting mechanism includes a connecting block fixedly installed on the inner wall of the lower mold base, and the placement plate is slidably installed on the upper end face of the connecting block.

[0008] Preferably, both clamping plates are fixedly equipped with anti-slip pads that mate with the outer wall of the lower mold base, and both anti-slip pads are made of rubber.

[0009] Preferably, two stabilizing rods are fixedly installed on the upper end face of the upper mold base, and limit blocks are fixedly installed at the ends of the two stabilizing rods. Both stabilizing rods slide through the support plate.

[0010] Preferably, a controller is fixedly installed on the outer wall of the processing table, and the controller is electrically connected to the electric push rod, the motor and the cylinder respectively.

[0011] The beneficial effects of this utility model are: 1. By setting up components such as a double-headed screw, a limiting rod, and a first connecting frame, and using a motor to drive the double-headed screw to rotate, the linkage structure of the moving sleeve, the first connecting frame, the connecting plate, and the second connecting frame can quickly drive the placement plate to rise and fall, greatly shortening the demolding time and thus significantly improving demolding efficiency.

[0012] 2. By setting up components such as electric push rods, clamping plates, and anti-slip pads, the electric push rods drive the clamping plates to work with the rubber anti-slip pads to fix the lower mold base. This effectively prevents the lower mold base from shifting during processing, improves the molding accuracy of the packaging box, and provides a stable foundation for rapid demolding. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the demolding mechanism of a vacuum forming machine for packaging box production according to the present invention; Figure 2 This is a side view of the demolding mechanism of a vacuum forming machine for packaging box production according to the present invention. Figure 3 for Figure 1 A schematic diagram of the vertical section structure; Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the diagram; Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point B in the diagram.

[0014] In the diagram: 1. Processing table, 2. Support leg, 3. Lower mold base, 4. Fixing plate, 5. Electric push rod, 6. Clamping plate, 7. Anti-slip pad, 8. Connecting block, 9. Placement plate, 10. Double-ended screw, 11. Motor, 12. Limiting rod, 13. Moving sleeve, 14. First connecting frame, 15. Connecting plate, 16. Second connecting frame, 17. Support plate, 18. Cylinder, 19. Upper mold base, 20. Stabilizing rod, 21. Limiting block, 22. Vacuum pump, 23. Telescopic hose, 24. Controller. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figure 1-5 A demolding mechanism for a vacuum forming machine used in packaging box production includes a processing table 1. Two support legs 2 are fixedly installed on the bottom wall of the processing table 1. A lower mold base 3 is slidably installed on the upper surface of the processing table 1. Fixed plates 4 are fixedly installed on both outer walls of the processing table 1. Clamping plates 6 are fixedly installed on the inner walls of the two fixed plates 4 through a telescopic mechanism. The telescopic mechanism includes an electric push rod 5 fixedly installed on the inner wall of the fixed plate 4. The telescopic end of the electric push rod 5 is fixedly connected to the outer wall of the clamping plate 6. The electric push rod 5 responds quickly and can accurately control the movement distance of the clamping plate 6, thereby achieving reliable clamping of the lower mold base 3. Anti-slip pads 7 that cooperate with the outer wall of the lower mold base 3 are fixedly installed on the inner walls of the two clamping plates 6. Both anti-slip pads 7 are made of rubber. The anti-slip pads 7 can increase the friction between the clamping plate 6 and the lower mold base 3, preventing the lower mold base 3 from sliding. The rubber material has a certain elasticity, which can avoid damage to the lower mold base 3 during clamping.

[0017] The inner walls on both sides of the lower mold base 3 are slidably mounted with placement plates 9 via a connecting mechanism. The connecting mechanism includes a connecting block 8 fixedly mounted on the inner wall of the lower mold base 3. The placement plate 9 is slidably mounted on the upper surface of the connecting block 8. The connecting block 8 provides guidance and support for the sliding of the placement plate 9, making the lifting and lowering movement of the placement plate 9 more stable. A double-headed screw 10 is rotatably mounted inside the lower mold base 3. A motor 11 connected to the double-headed screw 10 is fixedly mounted on the outer wall of the lower mold base 3. A limit rod 12 is fixedly mounted inside the lower mold base 3. Two movable sleeves 13 are threadedly mounted on the outer wall of the double-headed screw 10. The limit rod 12 slides through the two movable sleeves 13. A first connecting frame 14 is fixedly mounted on the upper surface of each of the two movable sleeves 13. A second connecting frame 16 is rotatably mounted inside each of the two first connecting frames 14 via a connecting plate 15. The upper surface of the second connecting frame 16 is fixedly connected to the bottom wall of the placement plate 9.

[0018] A support plate 17 is fixedly installed on the upper surface of the processing table 1. A cylinder 18 is fixedly installed on the upper surface of the support plate 17 via a mounting frame. An upper mold base 19 is fixedly installed at the telescopic end of the cylinder 18. Two stabilizing rods 20 are fixedly installed on the upper surface of the upper mold base 19. Limit blocks 21 are fixedly installed at the ends of the two stabilizing rods 20. Both stabilizing rods 20 slide through the support plate 17. The stabilizing rods 20 can improve the stability of the upper mold base 19 when it is raised and lowered and prevent it from shaking. The limit blocks 21 can prevent the stabilizing rods 20 from falling out of the support plate 17 and further ensure the accuracy of the movement of the upper mold base 19. A vacuum pump 22 is fixedly installed on the upper surface of the support plate 17. A telescopic hose 23 that cooperates with the upper mold base 19 is fixedly installed on the outer wall of the vacuum pump 22. A controller 24 is fixedly installed on the outer wall of the processing table 1. The controller 24 is electrically connected to the electric push rod 5, the motor 11 and the cylinder 18 respectively.

[0019] When using this utility model, the worker places the packaging box blank on the placement plate 9, then pushes the lower mold base 3 to slide it to the designated processing position on the processing table 1. Subsequently, the worker sends a start command through the controller 24 on the outer wall of the processing table 1. The controller 24 immediately sends a signal to the electric push rod 5, and the telescopic end of the electric push rod 5 quickly extends, driving the clamping plates 6 on both sides to move towards the middle synchronously until the rubber anti-slip pad 7 on the inner wall of the clamping plate 6 is tightly attached to the outer wall of the lower mold base 3. The high friction characteristics of the rubber material are used to firmly fix the lower mold base 3 in the processing position, avoiding displacement due to vibration during subsequent processing. Next, the controller 24 controls the cylinder 18 to start. The telescopic end of the cylinder 18 moves the upper mold base 19 downward quickly. The two stabilizing rods 20 slide synchronously along the through hole of the support plate 17, providing precise guidance for the descent of the upper mold base 19 and ensuring that the upper mold base 19 and the lower mold base 3 are precisely closed. At the moment of mold closing, the controller 24 simultaneously turns on the vacuum pump 22. The vacuum pump 22 delivers negative pressure to the inside of the upper mold base 19 through the telescopic hose 23, so that the packaging box blank is tightly attached to the mold cavity under the action of vacuum suction, and the thermoforming is completed. After the molding process is completed, the controller 24 issues commands in sequence according to the preset program. The telescopic end of the cylinder 18 retracts, driving the upper mold base 19 to quickly reset. The limiting block 21 at the end of the stabilizing rod 20 prevents the stabilizing rod 20 from detaching from the support plate 17. At the same time, the motor 11 starts and drives the double-headed screw 10 to rotate at high speed. Under the constraint of the limiting rod 12, the two moving sleeves 13 move towards each other along the double-headed screw 10. Through the linkage of the first connecting frame 14, the connecting plate 15 and the second connecting frame 16, the placement plate 9 is pushed to rise quickly along the upper end surface of the connecting block 8, pushing the molded packaging box out from the lower mold base 3. After demolding, motor 11 reverses, and double-headed screw 10 drives moving sleeve 13 to move in opposite directions, causing placement plate 9 to descend and reset; electric push rod 5 retracts its telescopic end, clamping plate 6 releases lower mold base 3, and workers can slide lower mold base 3 off processing table 1 to remove the formed packaging box, and then proceed to the next production cycle. The entire process is fully automated through controller 24, greatly reducing manual intervention and significantly improving production efficiency.

[0020] 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 demolding mechanism for a vacuum forming machine for packaging box production, comprising a processing table (1), characterized in that, The processing table (1) has two support legs (2) fixedly installed on its bottom wall. A lower mold base (3) is slidably installed on the upper surface of the processing table (1). Fixing plates (4) are fixedly installed on both outer walls of the processing table (1). Clamping plates (6) are fixedly installed on the inner walls of the two fixing plates (4) through a telescopic mechanism. Placement plates (9) are slidably installed on both inner walls of the lower mold base (3) through a connecting mechanism. A double-headed screw (10) is rotatably installed inside the lower mold base (3). A motor (11) connected to the double-headed screw (10) is fixedly installed on the outer wall of the lower mold base (3). A limit rod (12) is fixedly installed inside the lower mold base (3). Two movable sleeves (13) are threaded on the outer wall of the double-headed screw (10). The limit rod (12) The sliding sleeves (13) are connected to each other. The upper surfaces of the two sleeves (13) are fixedly installed with first connecting frames (14). The two first connecting frames (14) are rotatably installed with second connecting frames (16) through connecting plates (15). The upper surface of the second connecting frame (16) is fixedly connected to the bottom wall of the placement plate (9). The upper surface of the processing table (1) is fixedly installed with a support plate (17). The upper surface of the support plate (17) is fixedly installed with a cylinder (18) through a mounting frame. The telescopic end of the cylinder (18) is fixedly installed with an upper mold base (19). The upper surface of the support plate (17) is fixedly installed with a vacuum pump (22). The outer wall of the vacuum pump (22) is fixedly installed with a telescopic hose (23) that cooperates with the upper mold base (19).

2. The demolding mechanism of a vacuum forming machine for packaging box production according to claim 1, characterized in that, The telescopic mechanism includes an electric push rod (5) fixedly installed on the inner wall of the fixed plate (4), and the telescopic end of the electric push rod (5) is fixedly connected to the outer wall of the clamping plate (6).

3. The demolding mechanism of a vacuum forming machine for packaging box production according to claim 2, characterized in that, The connecting mechanism includes a connecting block (8) fixedly installed on the inner wall of the lower mold base (3), and the placement plate (9) is slidably installed on the upper end face of the connecting block (8).

4. The demolding mechanism of a vacuum forming machine for packaging box production according to claim 3, characterized in that, Both clamping plates (6) are fixedly installed with anti-slip pads (7) that cooperate with the outer wall of the lower mold base (3). Both anti-slip pads (7) are made of rubber.

5. The demolding mechanism of a vacuum forming machine for packaging box production according to claim 4, characterized in that, Two stabilizing rods (20) are fixedly installed on the upper end face of the upper mold base (19). Limiting blocks (21) are fixedly installed at the ends of the two stabilizing rods (20). The two stabilizing rods (20) slide through the support plate (17).

6. The demolding mechanism of a vacuum forming machine for packaging box production according to claim 5, characterized in that, A controller (24) is fixedly installed on the outer wall of the processing table (1). The controller (24) is electrically connected to the electric push rod (5), the motor (11) and the cylinder (18).

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