Split type mold for pulp molding

By introducing a combination of heating pipes and fans into the split mold for pulp molding, the problems of pulp mold sticking and material feeding difficulties were solved, enabling smooth pulp feeding and protection.

CN223660517UActive Publication Date: 2025-12-12DONG GUAN KING YU PACKAGING CO LTD
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Patent Information

Application Number
CN202520248954.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-17
Publication Date
2025-12-12
Estimated Expiration
2035-02-17

AI Technical Summary

Technical Problem

Existing pulp molding separate molds cause pulp to adhere between the molds after molding, and the molded pulp is easily damaged when the material is poured in a wet state.

Method used

A split mold for pulp molding was designed, comprising a collection tank, guide columns, upper and lower mold seats, and a molding mechanism. The mold is used in conjunction with heating pipes and a fan to shape and dry the pulp, ensuring that there is a gap between the shaped pulp and the mold for easy unloading.

Benefits of technology

This effectively prevents the pulp from sticking to the mold after molding, ensuring smooth material feeding, avoiding pulp damage, and improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a pulp molding split mold, which relates to the technical field of molds, and comprises a collecting pool, an upper mold seat and a guide post in sliding connection, a molding mechanism is arranged on the upper mold seat, the molding mechanism comprises a fixed cylinder, the fixed cylinder is fixedly connected to the upper end of the upper mold seat, and the lower end of the upper mold seat is fixedly connected with an upper mold block. The upper module is communicated with the interior of the fixed cylinder, the upper end of the fixed cylinder is fixedly connected with a fan, the inner wall of the fixed cylinder is fixedly provided with a heating pipe, the outer wall of the fixed cylinder is provided with a thermolator, the thermolator is connected with the heating pipe, the heating pipe is located below the fan, and the upper module is provided with a plurality of through holes in the circumferential direction. The paper pulp shaping device has the beneficial effects that the upper module extrudes paper pulp for shaping, then the heating pipe is heated, the fan is started to enable air flow carrying heat of the heating pipe to enter the upper module, and the air flow is blown out from the through holes to dry the paper pulp, so that a certain gap is formed between the shaped paper pulp and the upper module, and subsequent discharging is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of mold technology, and in particular to a split mold for pulp molding. Background Technology

[0002] Pulp molding, a three-dimensional papermaking technology, mainly uses waste paper as raw material and shapes paper products into various shapes through special molds on a molding machine. It has wide applications in the packaging and tableware fields, and also shows great potential in the industrial field.

[0003] A search revealed a Chinese patent publication number, CN221589084U, which discloses a split mold for pulp molding. This patent involves placing pulp into the lower mold, aligning the connecting hole of the top plate with the connecting column, and pressing the top plate down to close the upper and lower molds, thus molding the pulp. However, this device has certain problems: the pulp adheres between the upper and lower molds, and at this time, the pulp is still in a wet state, which may damage the molded pulp during subsequent feeding. Utility Model Content

[0004] The purpose of this utility model is to provide a split mold for pulp molding in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A pulp molding slit mold includes a collection tank, with two symmetrical guide columns fixedly connected to the upper end of the collection tank. A lower mold base is slidably connected to the guide columns, and an upper mold base is provided above the lower mold base. The upper mold base is slidably connected to the guide columns.

[0007] The upper mold base is equipped with a forming mechanism, which includes a fixed cylinder. The fixed cylinder is fixedly connected to the upper end of the upper mold base. The lower end of the upper mold base is fixedly connected to an upper module. The upper module communicates with the inside of the fixed cylinder. A fan is fixedly connected to the upper end of the fixed cylinder. A heating tube is fixedly installed on the inner wall of the fixed cylinder. A thermostat is installed on the outer wall of the fixed cylinder. The thermostat is connected to the heating tube. The heating tube is located below the fan. Multiple through holes are opened along the circumferential direction on the upper module.

[0008] Preferably, the lower mold base has an annular mounting groove at its upper end, a lower module is placed on the bottom wall of the mounting groove, and a fixing component is provided between the lower module and the lower mold base.

[0009] Preferably, the fixing component includes multiple threaded holes that are evenly distributed circumferentially on the bottom wall of the mounting groove, and multiple bolts are threadedly connected to the upper end of the lower module, with the bolts corresponding to the threaded holes.

[0010] Preferably, the collection pool has multiple grooves on both sides, which are arranged vertically, and the upper mold base has symmetrical limiting components on both sides, which correspond to the grooves vertically.

[0011] Preferably, the limiting component includes a mounting bracket, a limiting arm is rotatably connected to the mounting bracket, a limiting block is fixedly installed at the lower end of the limiting arm, the limiting block is located on the side of the limiting arm near the upper mold base, and a reset component is provided on the side of the limiting arm near the upper mold base.

[0012] Preferably, the reset assembly includes a spring, which is fixed to the side of the limiting arm near the limiting block, and the spring is fixedly connected to the upper mold base.

[0013] The beneficial effects are as follows: the upper module squeezes the pulp to shape it, then the heating tube heats up, and the fan is turned on so that the airflow carries the heat from the heating tube into the upper module and blows it out through the through hole to dry the pulp. This helps to create a certain gap between the shaped pulp and the upper module, which is convenient for subsequent feeding.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of a split mold for pulp molding according to the present invention;

[0017] Figure 2 This is a front view of a split mold for pulp molding according to the present invention;

[0018] Figure 3 This is a three-dimensional view of a portion of the mechanism of a split mold for pulp molding according to this utility model;

[0019] Figure 4 This is a cross-sectional view of a pulp molding split mold according to the present invention;

[0020] Figure 5 yes Figure 4 Enlarged view of point A.

[0021] The reference numerals in the attached drawings are explained as follows: 101, collection pool; 102, guide post; 201, lower mold base; 202, upper mold base; 301, lower module; 302, bolt; 401, fixing cylinder; 402, upper module; 403, fan; 404, heating tube; 405, through hole; 501, limiting arm; 502, limiting block; 503, spring; 6, groove. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] like Figures 1-5 As shown, a pulp molding split mold includes a collection pool 101. The upper end of the collection pool 101 is fixedly connected to two symmetrical guide columns 102. A lower mold base 201 is slidably connected to the guide columns 102. An upper mold base 202 is provided above the lower mold base 201. The upper mold base 202 is slidably connected to the guide columns 102.

[0026] The upper mold base 202 is equipped with a forming mechanism, which includes a fixed cylinder 401. The fixed cylinder 401 is fixedly connected to the upper end of the upper mold base 202. An upper module 402 is fixedly connected to the lower end of the upper mold base 202. The upper module 402 communicates with the inside of the fixed cylinder 401. A fan 403 is fixedly connected to the upper end of the fixed cylinder 401. A heating tube 404 is fixedly installed on the inner wall of the fixed cylinder 401. A thermostat is installed on the outer wall of the fixed cylinder 401 and is connected to the heating tube 404. The heating tube 404 is located near the fan 403. Below 03, multiple through holes 405 are opened circumferentially along the upper module 402. The upper mold base 202 drives the upper module 402 to move downward, so that the upper module 402 squeezes the pulp to shape it. Then, the thermostat is turned on to heat up the heating tube 404, and the fan 403 is started to generate airflow. The airflow carries the heat of the heating tube 404 into the upper module 402 and blows out from the through holes 405 to dry the pulp. This helps to create a certain gap between the shaped pulp and the upper module 402, which is convenient for subsequent feeding.

[0027] The lower mold base 201 has an annular mounting groove at its upper end. The lower module 301 is placed on the bottom wall of the mounting groove, and a fixing component is provided between the lower module 301 and the lower mold base 201.

[0028] The fixing component includes multiple threaded holes that are evenly distributed circumferentially on the bottom wall of the mounting slot. Multiple bolts 302 are threadedly connected to the upper end of the lower module 301, and the bolts 302 correspond to the threaded holes. When the lower module 301 is damaged and needs to be replaced, the bolts 302 are rotated and the lower module 301 is then removed from the mounting slot.

[0029] The collection pool 101 has multiple grooves 6 on both sides, which are arranged vertically. The upper mold base 202 has symmetrical limiting components on both sides, which correspond to the grooves 6 vertically.

[0030] The limiting component includes a mounting bracket, which is rotatably connected to a limiting arm 501. A limiting block 502 is fixedly installed at the lower end of the limiting arm 501. The limiting block 502 is located on the side of the limiting arm 501 near the upper mold base 202. A reset component is provided on the side of the limiting arm 501 near the upper mold base 202. The upper mold base 202 is placed above the guide post 102, and then the upper mold base 202 is slid downward on the guide post 102, so that the upper module 402 gradually approaches the lower module 301.

[0031] The reset assembly includes a spring 503, which is fixed to the side of the limiting arm 501 near the limiting block 502. The spring 503 is fixedly connected to the upper mold base 202. As the limiting arm 501 moves downward, the limiting block 502 presses against the edge of the lower mold base 201, causing the spring 503 to deform under force. As the upper mold base 202 presses down, the limiting block 502 is inserted into the appropriate groove 6. After the shaping is completed, the limiting arms 501 on both sides are pulled towards the fixed cylinder 401, and the spring 503 deforms, causing the limiting block 502 to disengage from the groove 6. Then, the upper mold base 202 moves upward.

[0032] Working principle: The upper mold base 202 is placed above the guide post 102, and then the upper mold base 202 slides downward on the guide post 102, causing the upper module 402 to gradually approach the lower module 301. When the lower module 301 is damaged and needs to be replaced, the bolt 302 is rotated to remove the lower module 301 from the mounting slot. As the limiting arm 501 moves downward, the limiting block 502 presses against the edge of the lower mold base 201, causing the spring 503 to deform under force. The upper mold base 202 drives the upper module 402 to move downward, so that the limiting block 502 is engaged in the appropriate groove 6. Inside, the upper module 402 squeezes the pulp to shape it. Then, the thermostat is turned on to heat the heating tube 404, and the fan 403 is started to generate airflow. The airflow carries the heat from the heating tube 404 into the upper module 402 and blows out through the through hole 405 to dry the pulp. This helps to create a certain gap between the shaped pulp and the upper module 402 for subsequent feeding. After the shaping is completed, the limiting arms 501 on both sides are pulled towards the fixed cylinder 401. The spring 503 deforms, causing the limiting block 502 to disengage from the groove 6. Then, the upper mold seat 202 moves upward.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A split mold for pulp molding, comprising a collection tank (101), wherein the upper end of the collection tank (101) is fixedly connected with symmetrical guide pillars (102) on both sides, characterized in that: A lower mold base (201) is slidably connected to the guide post (102), and an upper mold base (202) is provided above the lower mold base (201). The upper mold base (202) is slidably connected to the guide post (102). The upper mold base (202) is provided with a forming mechanism, which includes a fixed cylinder (401). The fixed cylinder (401) is fixedly connected to the upper end of the upper mold base (202). The lower end of the upper mold base (202) is fixedly connected to an upper module (402). The upper module (402) communicates with the inside of the fixed cylinder (401). A fan (403) is fixedly connected to the upper end of the fixed cylinder (401). A heating tube (404) is fixedly installed on the inner wall of the fixed cylinder (401). A thermostat is installed on the outer wall of the fixed cylinder (401). The thermostat is connected to the heating tube (404). The heating tube (404) is located below the fan (403). Multiple through holes (405) are opened along the circumferential direction on the upper module (402).

2. The pulp molding split mold according to claim 1, characterized in that: The lower mold base (201) has an annular mounting groove at its upper end. A lower module (301) is placed on the bottom wall of the mounting groove. A fixing component is provided between the lower module (301) and the lower mold base (201).

3. The pulp molding split mold according to claim 2, characterized in that: The fixing component includes multiple threaded holes, which are evenly distributed circumferentially on the bottom wall of the mounting groove. The upper end of the lower module (301) is threaded with multiple bolts (302), which correspond to the threaded holes.

4. The pulp molding split mold according to claim 1, characterized in that: The collection pool (101) has multiple grooves (6) on both sides, and the multiple grooves (6) are arranged vertically. The upper mold base (202) is provided with symmetrical limiting components on both sides, and the limiting components correspond vertically to the grooves (6).

5. A split mold for pulp molding according to claim 4, characterized in that: The limiting component includes a mounting bracket, which is rotatably connected to a limiting arm (501). A limiting block (502) is fixedly installed at the lower end of the limiting arm (501). The limiting block (502) is located on the side of the limiting arm (501) near the upper mold base (202). A reset component is provided on the side of the limiting arm (501) near the upper mold base (202).

6. A split mold for pulp molding according to claim 5, characterized in that: The reset assembly includes a spring (503), which is fixed to the side of the limiting arm (501) near the limiting block (502) and is fixedly connected to the upper mold base (202).

Citation Information

Patent Citations

  • Split type mold for paper pulp molding

    CN221589084U