Paper box hot press molding device

Abstract

The utility model discloses a carton hot press forming device, include: device bearing casing, link up and reach electric transport platform, the utility model relates to paper box processing technical field, and this device through hot forming press structure and symmetrical push and fold structure cooperation operation, complete hot forming processing while turning over carton blank, in detail, equipment utilizes symmetrical push and fold structure and realizes the accurate opposite folding of carton blank, and the hot forming press structure is started simultaneously and carries out heating pressure, in the heating process, carton material is in the setting folding state, and the fiber structure completes the form solidification under the thermoplastic effect, and after cooling, can form stable three -dimensional structure, effectively avoid the rebound deformation problem that easily appears in conventional technology, the design realized the integration processing of turning over and hot press forming, through the accurate cooperation of temperature control system and mechanical structure, guarantee forming accuracy, and simplify production process.

Description

Technical Field

[0001] This utility model relates to the field of paper box processing technology, specifically to a paper box thermoforming device. Background Technology

[0002] Thermoforming of paper boxes is a technology that uses heat and pressure to process paperboard or pulp into three-dimensional boxes. This process is widely used in food packaging, electronic product liners, and industrial parts pallets, and is particularly good at manufacturing containers with complex structures (such as lidded lunch boxes and irregularly shaped cushioning liners). Its core advantages include: lower mold costs than injection molding, production efficiency suitable for medium-batch production, uniform product thickness, and the ability to optimize fiber arrangement through pressure adjustment to improve compressive strength. It is also compatible with recycled pulp and composite paperboard, aligning with the trend of environmentally friendly packaging. However, existing equipment generally lacks a secondary thermoforming function after the paper box blank is folded. Although some technologies have attempted to solve this problem, this case aims to provide a simpler alternative by achieving integrated processing of folding and forming through innovative thermoforming module design, thereby reducing equipment complexity and improving production continuity. Utility Model Content

[0003] To achieve the above objectives, this utility model provides the following technical solution: a paper box thermoforming device, comprising: a device support housing, a connecting platform, and an electric transport platform. The connecting platform is inserted into the device support housing, and the electric transport platform is installed on the connecting platform. A thermoforming pressing structure is installed inside the device support housing, and a symmetrical push-folding structure is installed inside the device support housing. The thermoforming pressing structure comprises: a mounting top plate, a top displacement motor, a pair of auxiliary displacement modules, a top displacement screw, a pair of displacement connecting rods, a connecting mounting block, a top support platform, a heating module, a pair of blower pumps, and a pair of air guide modules.

[0004] The mounting top plate is installed on the device's supporting housing. The top displacement motor is installed inside the mounting top plate. A pair of auxiliary displacement modules are respectively installed on the mounting top plate, and the pair of auxiliary displacement modules are respectively fitted onto the top displacement screw. The top displacement motor is connected to the top displacement screw. A pair of displacement connecting rods are respectively connected to the pair of auxiliary displacement modules via rotating shafts, and the pair of displacement connecting rods are respectively connected to the connecting mounting block via rotating shafts. The connecting mounting block is installed on the top support platform. A pair of blower air pumps are respectively installed on the top support platform. A pair of air guide modules are respectively installed on the top support platform. The heating module is installed on the top support platform.

[0005] It should be noted that, as described above, the cardboard box blank to be thermoformed is placed on the electric transport platform of the connecting platform. The electric transport platform is driven to transport the cardboard box blank to the device's supporting housing. The relative height of the top supporting platform is adjusted according to the size and volume of the cardboard box blank to be thermoformed. The top displacement motor in the mounting plate is driven, which causes the top displacement screw to rotate. The rotating top displacement screw has a pair of opposing threads, so when it rotates, it will drive a pair of auxiliary displacement modules to move closer or further apart, thereby causing a pair of displacement linkages to move and change position. This causes the connecting block and the top supporting platform connected to it to change height. After reaching the required height, a pair of blower pumps are driven to operate. The air in the device's supporting housing is blown through a pair of air guide modules and the air ducts set on them to blow compressed air onto the surface of the cardboard box blank. At the same time, the heating module releases heat, and the air pressure on both sides will concentrate the heat on the cardboard box blank, helping the cardboard box blank to complete the thermoforming operation. The emergency stop button set on the device's supporting housing can be used to stop the device in an emergency.

[0006] Preferably, the thermoforming pressing structure includes: a lateral displacement motor, a lateral power protective shell, a bottom displacement screw, a pair of bottom displacement modules, a cardboard box blank body, and a pair of lateral folding components;

[0007] The lateral displacement motor is installed inside the lateral power protective shell, the lateral power protective shell is installed inside the device bearing shell, the bottom displacement screw is installed inside the device bearing shell and is connected to the lateral displacement motor, a pair of bottom displacement modules are respectively fitted on the bottom displacement screw and the pair of bottom displacement modules are respectively movably inserted into the connecting platform, the cardboard blank body is movably connected to the electric transport platform, and a pair of lateral folding components are respectively provided on the pair of bottom displacement modules;

[0008] The side-folding assembly includes: a folding telescopic pneumatic rod, a folding push arm, an electric slide rail, an electric slider, an adjustment auxiliary electric telescopic rod, a secondary folding push block, a connecting buffer spring, a pair of damping magnets, and a main folding push block;

[0009] The folding telescopic air spring is mounted on the bottom displacement module. The folding push arm is connected to the bottom displacement module via a rotating shaft, and the folding push arm is also connected to the folding telescopic air spring via a rotating shaft. The electric slide rail is mounted on the folding push arm, the electric slider is mounted on the electric slide rail, the adjustment auxiliary electric telescopic rod is mounted on the electric slider, the secondary folding push block is connected to the connecting buffer spring, and the secondary folding push block is movably connected to the carton blank body. The connecting buffer spring is connected to the main folding push block, a pair of damping magnets are respectively mounted on the connecting buffer spring, and the main folding push block is mounted on the adjustment auxiliary electric telescopic rod, and the main folding push block is movably connected to the carton blank body.

[0010] It should be noted that, as described above, the lateral displacement motor inside the drive side power protective shell causes the bottom displacement screw to rotate. Because the bottom displacement screw has a pair of threads pointing in opposite directions, rotation causes the pair of bottom displacement modules to move closer or further apart. After adjusting the relative distance between the bottom displacement modules, the folding telescopic air rod is driven to extend and retract. When the folding telescopic air rod is fully extended, the folding push arm and the bottom displacement module are perpendicular. During the process of the folding push arm becoming perpendicular, the pair of main folding push blocks fold the cardboard box blank. The electric slider, sliding up and down on the electric slide rail, adjusts the relative height of the adjustment auxiliary electric telescopic rod. Once the telescopic rod reaches the appropriate position, it stops. Then, the adjustment auxiliary electric telescopic rod is driven to extend or retract, allowing the main folding push block to be in the optimal folding length and specification relative to the size of the carton blank. At the same time, when the main folding push block contacts the carton blank, the secondary folding push block will first contact the surface of the carton blank. Therefore, at the moment of contact of the secondary folding push block, the corresponding connecting buffer spring will be compressed, and the pair of damping magnets on it will repel each other due to magnetism, thereby pushing the secondary folding push block to reset and push it towards the inner carton blank, making the folding of the carton blank smoother and less prone to jamming. The bending and fitting protective pads set on the secondary folding push block can effectively protect the carton blank.

[0011] Preferably, the secondary folding push block is provided with a bending and fitting protective pad;

[0012] Preferably, the air guide module is provided with an air guide duct;

[0013] Preferably, the side dynamic protective shell is provided with a maintenance and inspection port;

[0014] Preferably, the device housing is provided with an emergency stop button.

[0015] Beneficial effects

[0016] This utility model provides a thermoforming device for paper boxes. It offers the following advantages compared to existing technologies: This device utilizes a thermoforming pressing structure and a symmetrical folding structure working in synergy to complete thermoforming while folding the paper box blank. Specifically, the equipment uses the symmetrical folding structure to achieve precise folding of the paper box blank, while simultaneously activating the thermoforming pressing structure for heating and pressure. During heating, the paper box material is in a folded, shape-fixed state, and the fiber structure solidifies under thermoplastic action. After cooling, a stable three-dimensional structure is formed, effectively avoiding the springback deformation problem that easily occurs in conventional processes. This design achieves integrated processing of folding and thermoforming. Through the precise coordination of the temperature control system and the mechanical structure, it ensures forming accuracy while simplifying the production process. The equipment is compatible with paper box blanks of different specifications; only the mold parameters need to be adjusted to adapt to diverse product needs, significantly improving production flexibility and equipment utilization. It is particularly suitable for multi-variety, small-batch environmentally friendly packaging production scenarios. Attached Figure Description

[0017] Figure 1 This is a front sectional view of the paper box thermoforming device of this utility model.

[0018] Figure 2 This is a side sectional view of the paper box thermoforming device of this utility model.

[0019] Figure 3 for Figure 2 A magnified view of the letter "A" in the diagram.

[0020] Figure 4 for Figure 2 A magnified view of a portion of the letter "B".

[0021] In the diagram: 1. Device support housing; 2. Connecting platform; 3. Electric transport platform; 4. Mounting top plate; 5. Top displacement motor; 6. Auxiliary displacement module; 7. Top displacement screw; 8. Displacement connecting rod; 9. Connecting mounting block; 10. Top support platform; 11. Heating module; 12. Blower air pump; 13. Air guide module; 14. Side displacement motor; 15. Side power protective shell; 16. Bottom displacement screw; 17. Bottom displacement module; 18. Folding telescopic air rod; 19. Folding push arm; 20. Electric slide rail; 21. Electric slider; 22. Adjustment auxiliary electric telescopic rod; 23. Secondary folding push block; 24. Connecting buffer spring; 25. Damping magnet; 26. Main folding push block; 27. Cardboard box blank body. Detailed Implementation

[0022] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires. Appropriate controllers and encoders should be selected according to the actual situation to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical components are connected in sequence. The detailed connection methods are well-known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0024] Example

[0025] The present invention will now be described in detail with reference to the accompanying drawings, such as... Figure 1-4As shown, the paper box thermoforming device includes: a device support housing 1, a connecting platform 2, and an electric transport platform 3. The connecting platform 2 is inserted into the device support housing 1, and the electric transport platform 3 is installed on the connecting platform 2. A thermoforming pressing structure is installed inside the device support housing 1, and a symmetrical push-folding structure is installed inside the device support housing 1. The thermoforming pressing structure includes: a mounting top plate 4, a top displacement motor 5, a pair of auxiliary displacement modules 6, a top displacement screw 7, a pair of displacement connecting rods 8, a connecting mounting block 9, a top support platform 10, a heating module 11, a pair of blower air pumps 12, and a pair of air guide modules 13. The mounting top plate 4 is installed on the device bearing housing 1. The top displacement motor 5 is installed inside the mounting top plate 4. A pair of auxiliary displacement modules 6 are respectively installed on the mounting top plate 4, and the pair of auxiliary displacement modules 6 are respectively fitted onto the top displacement screw 7. The top displacement motor 5 is connected to the top displacement screw 7. A pair of displacement connecting rods 8 are respectively connected to the pair of auxiliary displacement modules 6 through rotating shafts, and the pair of displacement connecting rods 8 are respectively connected to the connecting mounting block 9 through rotating shafts. The connecting mounting block 9 is installed on the top bearing platform 10. A pair of blower pumps 12 are respectively installed on the top bearing platform 10. On the top support platform 10, a pair of air guide modules 13 are respectively installed on the top support platform 10, and the heating module 11 is installed on the top support platform 10; the thermoforming pressing structure includes: a side displacement motor 14, a side power protective shell 15, a bottom displacement screw 16, a pair of bottom displacement modules 17, a cardboard box blank body 27, and a pair of side folding components; the side displacement motor 14 is installed inside the side power protective shell 15, the side power protective shell 15 is installed inside the device support housing 1, the bottom displacement screw 16 is installed inside the device support housing 1, and the bottom displacement screw 16 is connected to... The lateral displacement motor 14 is connected to the bottom displacement module 17, which is respectively mounted on the bottom displacement screw 16. The bottom displacement module 17 is also movably inserted into the connecting platform 2. The cardboard blank body 27 is movably connected to the electric transport platform 3. The bottom displacement module 17 is respectively provided with a pair of lateral folding components. The lateral folding components include: a folding telescopic air rod 18, a folding push arm 19, an electric slide rail 20, an electric slider 21, an adjustment auxiliary electric telescopic rod 22, a secondary folding push block 23, a connecting buffer spring 24, a pair of damping magnets 25, and a main folding push block 26.The folding telescopic air spring 18 is mounted on the bottom displacement module 17. The folding push arm 19 is connected to the bottom displacement module 17 via a rotating shaft, and is also connected to the folding telescopic air spring 18 via a rotating shaft. The electric slide rail 20 is mounted on the folding push arm 19. The electric slider 21 is mounted on the electric slide rail 20. The adjusting auxiliary electric telescopic rod 22 is mounted on the electric slider 21. The secondary folding push block 23 is connected to the connecting buffer spring 24, and is movably connected to the carton blank body 27. The connecting buffer spring 24 is connected to the main folding push block 26. A pair of damping magnets 25 are respectively mounted on the connecting buffer spring 24. The main folding push block 26 is mounted on the adjusting auxiliary electric telescopic rod 22, and is movably connected to the carton blank body 27.

[0026] According to the appendix Figure 1-4The paper box blank 27 to be thermoformed is placed on the electric transport platform 3 on the connecting platform 2. The electric transport platform 3 is driven to transport the paper box blank 27 into the device housing 1. The relative height of the top support platform 10 is adjusted according to the size and volume of the paper box blank 27 to be thermoformed. The top displacement motor 5 in the mounting plate 4 is driven, which causes the top displacement screw 7 to rotate. The rotating top displacement screw 7 has a pair of opposing threads, so when it rotates, it will drive a pair of auxiliary displacement modules 6 to move closer or further apart, thereby causing a pair of displacement connecting rods 8 to move and change position, thus causing the connecting block 9 and the connected top support platform 10 to change height. Once the required height is reached, a pair of blower pumps 12 are activated, drawing air from the device's housing 1 through a pair of air guide modules 13. These modules, along with their air ducts, blow compressed air onto the surface of the cardboard blank body 27. Simultaneously, the heating module 11 releases heat. The air pressure on both sides concentrates the heat onto the cardboard blank body 27, aiding in the thermoforming process. An emergency stop button on the device's housing 1 allows for emergency shutdown of the equipment. The device also drives a lateral displacement motor 14 within the side power protective housing 15, causing the bottom displacement screw 16 to rotate. Because the bottom displacement screw 16 has a pair of oppositely oriented threads, during rotation… This causes the pair of bottom displacement modules 17 to move closer or further apart. After adjusting the relative distance between the pair of bottom displacement modules 17, the folding telescopic air rod 18 is driven to extend or retract. When the folding telescopic air rod 18 is fully extended, the folding push arm 19 will be perpendicular to the bottom displacement module 17. During the process of the folding push arm 19 becoming perpendicular, the pair of main folding push blocks 26 will fold the carton blank body 27. When the electric slider 21 slides up and down on the electric slide rail 20, the relative height of the adjustment auxiliary electric telescopic rod 22 can be adjusted. After the adjustment auxiliary electric telescopic rod 22 reaches the appropriate position, it stops, and then the adjustment auxiliary electric telescopic rod 22 is driven to extend or retract, thereby... This allows the main folding pusher 26 to be positioned at the optimal folding length and specifications relative to the size of the carton blank body 27. Simultaneously, when the main folding pusher 26 contacts the carton blank body 27, the secondary folding pusher 23 will first contact the surface of the carton blank body 27. Therefore, at the moment of contact of the secondary folding pusher 23, the corresponding connecting buffer spring 24 will be compressed, and the pair of damping magnets 25 on it will repel each other due to magnetism, thereby pushing the secondary folding pusher 23 to reset and push it towards the inner carton blank body 27, thus making the folding of the carton blank body 27 smoother and less prone to jamming. The bending and fitting pads provided on the secondary folding pusher 23 can effectively protect the carton blank body 27.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paper box thermoforming device, comprising: The device includes a supporting housing, a connecting platform, and an electric transport platform. The connecting platform is inserted into the supporting housing, and the electric transport platform is installed on the connecting platform. A thermoformed pressing structure and a symmetrical push-folding structure are installed inside the supporting housing. The thermoformed pressing structure includes: a mounting top plate, a top displacement motor, a pair of auxiliary displacement modules, a top displacement screw, a pair of displacement connecting rods, a connecting mounting block, a top supporting platform, a heating module, a pair of blower pumps, and a pair of air guide modules. The mounting plate is installed on the device's supporting housing. The top displacement motor is installed inside the mounting plate. A pair of auxiliary displacement modules are respectively installed on the mounting plate, and the pair of auxiliary displacement modules are respectively fitted onto the top displacement screw. The top displacement motor is connected to the top displacement screw. A pair of displacement connecting rods are respectively connected to the pair of auxiliary displacement modules via rotating shafts, and the pair of displacement connecting rods are respectively connected to the connecting mounting block via rotating shafts. The connecting mounting block is installed on the top support platform. A pair of blower air pumps are respectively installed on the top support platform. A pair of air guide modules are respectively installed on the top support platform. The heating module is installed on the top support platform.

2. The paper box hot pressing forming apparatus according to claim 1, characterized in that, The thermoforming pressing structure includes: a side displacement motor, a side power protective shell, a bottom displacement screw, a pair of bottom displacement modules, a cardboard box blank body, and a pair of side folding components; The lateral displacement motor is installed inside the lateral power protective shell, the lateral power protective shell is installed inside the device bearing shell, the bottom displacement screw is installed inside the device bearing shell and is connected to the lateral displacement motor, a pair of bottom displacement modules are respectively fitted on the bottom displacement screw and the pair of bottom displacement modules are respectively movably inserted into the connecting platform, the cardboard blank body is movably connected to the electric transport platform, and a pair of lateral folding components are respectively provided on the pair of bottom displacement modules; The side-folding assembly includes: a folding telescopic pneumatic rod, a folding push arm, an electric slide rail, an electric slider, an adjustment auxiliary electric telescopic rod, a secondary folding push block, a connecting buffer spring, a pair of damping magnets, and a main folding push block; The folding telescopic air spring is mounted on the bottom displacement module. The folding push arm is connected to the bottom displacement module via a rotating shaft, and the folding push arm is also connected to the folding telescopic air spring via a rotating shaft. The electric slide rail is mounted on the folding push arm, the electric slider is mounted on the electric slide rail, the adjusting auxiliary electric telescopic rod is mounted on the electric slider, the secondary folding push block is connected to the connecting buffer spring, and the secondary folding push block is movably connected to the main body of the cardboard box blank. The connecting buffer spring is connected to the main folding push block, a pair of damping magnets are respectively mounted on the connecting buffer spring, and the main folding push block is mounted on the adjusting auxiliary electric telescopic rod, and the main folding push block is movably connected to the main body of the cardboard box blank.

3. The paper box hot pressing forming apparatus according to claim 2, characterized in that, The secondary folding push block is provided with a bending and fitting protective pad.

4. The paper box hot pressing forming apparatus according to claim 3, characterized in that, The air guide module is equipped with an air guide duct.

5. The paper box hot pressing forming apparatus according to claim 4, characterized in that, The side dynamic protective shell is provided with a maintenance and inspection port.

6. The paper box thermoforming apparatus according to claim 5, characterized in that, An emergency stop button is provided on the housing of the device.

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