Hot-pressing forming machine for paper pulp molding processing

By introducing hydraulic telescopic rods, suction pipes, fans, and moisture-absorbing sponges into the hot press molding machine for pulp molding, the problem of moisture loss has been solved, achieving moisture control in the working environment and precise mold alignment, thereby extending the service life of the equipment and ensuring the health and safety of the workers.

CN223983905UActive Publication Date: 2026-03-10ANHUI HUISHENG PAPER & PLASTIC PRODUCTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

During the hot pressing process of pulp molding, moisture inside the damp pulp board escapes into the air, resulting in high humidity in the working environment and affecting the health of the workers.

Method used

A hot press molding machine for pulp molding was designed, comprising a hydraulic telescopic rod, an air suction pipe, a fan, a dehumidification box, and a moisture-absorbing sponge. The hydraulic telescopic rod drives the mounting plate to move down, and the upper and lower hot press molds work together to perform hot pressing. The air suction pipe draws in moisture, and the moisture-absorbing sponge absorbs the moisture in the dehumidification box to prevent moisture from overflowing.

Benefits of technology

It effectively reduces the humidity concentration in the working environment, protecting the health of workers, while ensuring precise mold alignment through the limiting sleeve and limiting rod, thus extending the service life of the mold.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hot-pressing forming machine for pulp molding processing, which comprises a workbench, a lower hot-pressing die, a support frame and a fence are fixedly connected to the surface of the workbench, an upper hot-pressing die is fixedly connected to the lower surface of a mounting plate, an air suction pipe penetrating through the support frame is arranged on the rear surface of the support frame, and a suction fan is arranged in the middle of the air suction pipe. A dehumidification box is arranged at the lower end of the air suction pipe, moisture adsorption sponge and a pressing plate capable of moving up and down are arranged in the dehumidification box, and the lower surface of the dehumidification box fixedly communicates with a water outlet pipe. A hydraulic telescopic rod drives a mounting plate to move downwards, an upper hot-pressing mold and a lower hot-pressing mold are matched with each other, a paper pulp board can be subjected to hot pressing, moisture generated in the process can be effectively prevented from overflowing through a fence, a suction fan works, moisture in a dehumidification box is adsorbed through a moisture adsorption sponge, and the dehumidification effect is improved. The high moisture of the working ring is effectively avoided, and it is guaranteed that the health of workers is not affected.
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Description

Technical Field

[0001] This utility model relates to the field of hot press molding machine technology, specifically a hot press molding machine for pulp molding processing. Background Technology

[0002] A pulp molding thermoforming machine is a device used to mold pulp into specific shapes. This equipment is widely used in the production of various pulp products, such as egg trays, tableware, and industrial cushioning packaging.

[0003] The pulp molding thermoforming machine completes the molding of pulp through the following steps: First, pulping, which involves preparing raw materials (such as straw pulp, bagasse, wood pulp, etc.) into pulp; second, sizing, which involves evenly distributing the pulp onto the mold; third, adsorption molding, which involves adsorbing the pulp onto the mold using a vacuum suction system to form a preliminary shape; and fourth, drying and setting, which involves drying and setting the pulp using a thermoforming system to form the final product.

[0004] However, during the hot pressing process, moisture inside the damp pulp board evaporates and escapes into the air, resulting in high humidity throughout the working environment. Working in such a humid environment for a long time is detrimental to the health of workers and therefore needs to be improved. Utility Model Content

[0005] The purpose of this invention is to provide a hot press molding machine for pulp molding to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a hot press molding machine for pulp molding, comprising a worktable, a lower hot press mold, a support frame, and a railing fixedly connected to the surface of the worktable, a hydraulic telescopic rod fixedly connected to the upper surface of the support frame, an installation plate fixedly connected to the movable end of the hydraulic telescopic rod, an upper hot press mold fixedly connected to the lower surface of the installation plate, an air suction pipe penetrating the support frame provided on the rear surface of the support frame, a fan provided in the middle of the air suction pipe, a dehumidification box provided at the lower end of the air suction pipe, a moisture-absorbing sponge and a pressing plate that can move up and down respectively provided inside the dehumidification box, with the pressing plate located above the moisture-absorbing sponge, and a water outlet pipe fixedly connected to the lower surface of the dehumidification box.

[0007] Preferably, a water collection tank is provided on the lower surface of the water outlet pipe, and an air exchange pipe and a drain pipe are respectively provided on the side of the water collection tank.

[0008] Preferably, the drain pipe is equipped with a manual valve.

[0009] Preferably, the surface of the pressing plate has a plurality of ventilation holes arranged in a rectangular array.

[0010] Preferably, an arm is fixedly connected to the rear surface of the mounting plate, a push-pull rod is fixedly connected to the lower surface of the arm, and the push-pull rod passes through the dehumidification box and is fixedly connected to the pressing plate.

[0011] Preferably, limit sleeves are fixedly connected to the four corners of the upper surface of the mounting plate, and limit rods are slidably connected inside the limit sleeves, with the lower ends of the limit rods fixedly connected to the worktable.

[0012] Preferably, the workbench has a storage cavity inside, and a cabinet door for opening the storage cavity is hinged to the surface of the workbench.

[0013] Beneficial effects

[0014] This utility model provides a hot press molding machine for pulp molding, which has the following beneficial effects:

[0015] 1. This hot press molding machine for pulp molding uses a hydraulic telescopic rod to move the mounting plate downwards. By cooperating with the upper and lower hot press molds, the pulp board can be hot-pressed. The moisture generated during the process can be effectively prevented from escaping by using a fence. The suction fan can draw the moisture into the dehumidification box through the suction pipe. The moisture adsorption sponge in the dehumidification box can then absorb the moisture, effectively preventing the humidity in the working ring from becoming too high and ensuring that the health of the workers is not affected.

[0016] 2. This hot press molding machine for pulp molding can limit the mounting plate by setting a limiting sleeve and a limiting rod, which is conducive to the stable up and down movement of the mounting plate and facilitates the precise alignment of the lower and upper hot press molds. It effectively avoids damage to the mold caused by misalignment and thus improves the service life of the hot press mold. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a hot press molding machine for pulp molding proposed in this utility model;

[0018] Figure 2 This is a rear-view three-dimensional structural diagram of a hot press molding machine for pulp molding proposed in this utility model;

[0019] Figure 3 This is a cross-sectional view of the dehumidification box of a hot press molding machine for pulp molding proposed in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the mounting plate of a hot press molding machine for pulp molding proposed in this utility model.

[0021] In the diagram: 1. Workbench; 2. Lower hot press mold; 3. Support frame; 4. Fence; 5. Hydraulic telescopic rod; 6. Mounting plate; 7. Upper hot press mold; 8. Suction pipe; 9. Fan; 10. Dehumidifier box; 11. Moisture-absorbing sponge; 12. Pressing plate; 13. Water outlet pipe; 14. Water collection tank; 15. Ventilation pipe; 16. Drain pipe; 17. Manual valve; 18. Ventilation hole; 19. Arm; 20. Push-pull rod; 21. Limit sleeve; 22. Limit rod; 23. Cabinet door. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a hot press molding machine for pulp molding, including a worktable 1. A lower hot press mold 2, a support frame 3, and a railing 4 are fixedly connected to the surface of the worktable 1. A hydraulic telescopic rod 5 is fixedly connected to the upper surface of the support frame 3. A mounting plate 6 is fixedly connected to the movable end of the hydraulic telescopic rod 5. An upper hot press mold 7 is fixedly connected to the lower surface of the mounting plate 6. An air suction pipe 8 penetrating the support frame 3 is provided on the rear surface of the support frame 3. A suction fan 9 is provided in the middle of the air suction pipe 8. A dehumidification box 10 is provided at the lower end of the air suction pipe 8. The dehumidification box 10 contains a moisture-absorbing sponge 11 and a movable... The pressing plate 12 is positioned above the moisture-absorbing sponge 11. The lower surface of the dehumidification box 10 is fixedly connected to the water outlet pipe 13. The mounting plate 6 is moved down by the hydraulic telescopic rod 5. The upper hot pressing mold 7 and the lower hot pressing mold 2 work together to hot press the pulp board. The moisture generated during the process can be effectively prevented from overflowing by the fence 4. The suction fan 9 can draw the moisture into the dehumidification box 10 through the suction pipe 8. The moisture-absorbing sponge 11 absorbs the moisture in the dehumidification box 10, effectively preventing the humidity in the working ring from being too high and ensuring that the health of the staff is not affected.

[0024] A water collection tank 14 is provided on the lower surface of the water outlet pipe 13. A ventilation pipe 15 and a drain pipe 16 are respectively provided on the side of the water collection tank 14. A manual valve 17 is provided on the drain pipe 16. By providing the water collection tank 14, the water discharged from the water outlet pipe 13 can be collected. By providing the ventilation pipe 15, the dehumidified gas can be discharged easily. By providing the drain pipe 16 and the manual valve 17, the collected water can be released easily. The collected water can be reused, thereby effectively saving resources.

[0025] The surface of the pressing plate 12 has several ventilation holes 18 arranged in a rectangular array. By setting the ventilation holes 18, moisture can easily pass through the pressing plate 12 and come into contact with the moisture-absorbing sponge 11.

[0026] An arm 19 is fixedly connected to the rear surface of the mounting plate 6, and a push-pull rod 20 is fixedly connected to the lower surface of the arm 19. The push-pull rod 20 passes through the dehumidification box 10 and is fixedly connected to the pressing plate 12. By setting the arm 19 and the push-pull rod 20, the hydraulic telescopic rod 5 can be extended and retracted, which can drive the mounting plate 6 to move up and down. Through the transmission of the arm 19 and the push-pull rod 20, the pressing plate 12 can be driven to move up and down, thereby squeezing out the moisture absorbed by the moisture-absorbing sponge 11.

[0027] Limiting sleeves 21 are fixedly connected to the four corners of the upper surface of the mounting plate 6. Limiting rods 22 are slidably connected inside the limiting sleeves 21, and the lower end of the limiting rods 22 is fixedly connected to the worktable 1. By setting the limiting sleeves 21 and the limiting rods 22, the mounting plate 6 can be limited, which is conducive to the stable up and down movement of the mounting plate 6. This facilitates the precise alignment of the lower hot press mold 2 and the upper hot press mold 7, effectively avoids damage to the mold caused by misalignment, and thus improves the service life of the hot press mold.

[0028] The workbench 1 has a storage cavity inside, and the surface of the workbench 1 is hinged with a cabinet door 23 for opening the storage cavity. By setting up the storage cavity and the cabinet door 23, it is convenient to store the pulp products that have been hot-pressed.

[0029] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hot press forming machine for pulp molding processing, comprising a worktable (1), characterized in that: The surface of the workbench (1) is fixedly connected with a lower hot-pressing die (2), a support frame (3) and a fence (4), the upper surface of the support frame (3) is fixedly connected with a hydraulic telescopic rod (5), the movable end of the hydraulic telescopic rod (5) is fixedly connected with a mounting plate (6), the lower surface of the mounting plate (6) is fixedly connected with an upper hot-pressing die (7), the rear surface of the support frame (3) is provided with an air suction pipe (8) penetrating through the support frame (3), the middle part of the air suction pipe (8) is provided with a suction fan (9), the lower end of the air suction pipe (8) is provided with a dehumidification box (10), the inner part of the dehumidification box (10) is respectively provided with a moisture adsorption sponge (11) and a press plate (12) capable of moving up and down, and the press plate (12) is located above the moisture adsorption sponge (11), and the lower surface of the dehumidification box (10) is fixedly communicated with a water outlet pipe (13).

2. A hot press forming machine for paper pulp molding processing according to claim 1, characterized in that: The lower surface of the water outlet pipe (13) is provided with a water collecting tank (14), and the side surface of the water collecting tank (14) is respectively provided with an air exchange pipe (15) and a drain pipe (16).

3. A hot press forming machine for paper pulp molding processing according to claim 2, characterized in that: A manual valve (17) is arranged on the drain pipe (16).

4. The hot press forming machine for paper pulp molding processing according to claim 1, characterized in that: The surface of the press plate (12) is provided with a plurality of air permeable holes (18) arranged in a rectangular array.

5. The hot press forming machine for paper pulp molding processing according to claim 1, characterized in that: The rear surface of the mounting plate (6) is fixedly connected with an arm rod (19), the lower surface of the arm rod (19) is fixedly connected with a push-pull rod (20), and the push-pull rod (20) penetrates through the dehumidification box (10) and is fixedly connected with the press plate (12).

6. The hot press forming machine for paper pulp molding processing according to claim 1, characterized in that: The upper surface of the mounting plate (6) is fixedly connected with a limiting sleeve (21) at four corners, a limiting rod (22) is slidably connected in the limiting sleeve (21), and the lower end of the limiting rod (22) is fixedly connected with the workbench (1).

7. The hot press forming machine for paper pulp molding processing according to claim 1, characterized in that: The workbench (1) is internally provided with a storage cavity, and the surface of the workbench (1) is hingedly connected with a cabinet door (23) for opening the storage cavity.