Vacuum forming equipment for paper pulp molded product

Abstract

The utility model discloses paper pulp molded product vacuum forming equipment which comprises a forming box, a lifting screw rod is arranged in the forming box, a mounting plate is arranged on the surface of the lifting screw rod, a sealing seat is arranged on the upper portion of the mounting plate, and a paper pulp connecting pipe and a vacuum connecting pipe are arranged on the upper portion of the sealing seat. The pulp connecting pipe is connected with a pulp conveying mechanism, a vacuum pump is arranged on the side face of the forming box, and a conveying pipe is arranged on the upper portion of the vacuum pump. Paper pulp is conveyed into the containing groove of the forming plate through the paper pulp conveying mechanism, the lifting screw drives the sealing base to descend to seal the forming box, meanwhile, the water outlet is closed, the vacuum pump is started to vacuumize the formed interior, and water in the paper pulp is separated out along with air extraction and internal pressure increase. The paper pulp is separated out through the water permeable membrane and flows into the lower portion of the forming box through the water permeable holes, the paper pulp can be effectively prevented from flowing out together through the water permeable membrane and the water permeable holes, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum forming equipment, and more specifically to vacuum forming equipment for pulp molded products. Background Art

[0002] Papermaking technology is divided into two types: mechanical and manual. Mechanical papermaking is a continuous process on a papermaking machine. Pulp suitable for paper quality is diluted with water to a certain concentration, initially dehydrated on the papermaking machine's wire section to form wet paper sheets. This is then pressed for dehydration and then dried to form paper. Manual papermaking uses a frame with bamboo, polyester, or copper mesh to form wet paper sheets from fibers suspended in water. This is then pressed for dehydration and then sun-dried or oven-dried to form paper.

[0003] The main problems are as follows: 1. Existing pressing methods mostly use vacuum pressing, during which some pulp leaks out, resulting in a certain amount of waste; 2. The cover of the vacuum forming equipment needs to be opened and closed manually, which is inconvenient. Therefore, a new technical solution is needed to solve this problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the present invention provides a vacuum forming device for pulp molded products to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: A vacuum forming device for pulp molded products, comprising: a forming box, a lifting screw is provided inside the forming box and a mounting plate is provided on the surface of the lifting screw, a sealing seat is provided on the upper part of the mounting plate, and a pulp connecting pipe and a vacuum connecting pipe are provided on the upper part of the sealing seat, the pulp connecting pipe is connected to the pulp conveying mechanism, a vacuum pump is provided on the side of the forming box and a conveying pipe is provided on the upper part of the vacuum pump, the conveying pipe and the vacuum connecting pipe are connected, the vacuum connecting pipe extends to the lower part of the sealing seat, a forming groove is provided inside the forming box and a mounting bracket is provided inside the forming groove, a forming plate is provided on the surface of the mounting bracket, a holding groove is provided inside the forming plate and a water-permeable membrane is provided inside the holding groove, a plurality of groups of water-permeable holes are provided inside the forming plate, and the water-permeable holes are arranged in a tapered structure from top to bottom, a drain outlet is provided on the side of the forming box, and the drain outlet is communicated with the interior of the forming box.

[0006] As a preferred embodiment of the present invention, a sealing block is provided at the lower portion of the sealing seat and the sealing block is engaged with the opening of the forming box.

[0007] As a preferred embodiment of the present invention, the surfaces of the pulp connecting pipe and the vacuum connecting pipe are both provided with connecting flanges.

[0008] As a preferred embodiment of the present invention, a support frame is provided at the bottom of the forming box and the support frame is fixedly connected to the forming box.

[0009] As a preferred embodiment of the present invention, a slope is provided inside the forming box and extends toward the drain outlet.

[0010] As a preferred embodiment of the present invention, the bottom of the lifting screw extends to the outside of the molding box and is installed with a linkage box, a drive box is provided at the bottom of the molding box, and drive wheels are provided inside the drive box and the linkage box, a driver is provided on the side of the drive wheel in the drive box, and the drive wheel in the linkage box is connected to the lifting screw, and a drive chain is provided inside the drive box and the linkage box, and the drive chain is wrapped around the surface of the drive wheel.

[0011] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0012] The utility model is provided with a lifting screw inside the forming box and a mounting plate on the surface of the lifting screw, a sealing seat is provided on the upper part of the mounting plate and a pulp connecting pipe and a vacuum connecting pipe are provided on the upper part of the sealing seat, the pulp connecting pipe is connected with the pulp conveying mechanism, a vacuum pump is provided on the side of the forming box and a conveying pipe is provided on the upper part of the vacuum pump, the conveying pipe and the vacuum connecting pipe are connected, the vacuum connecting pipe extends to the lower part of the sealing seat, a mounting frame is provided inside the forming box and a forming plate is provided on the surface of the mounting frame, a holding groove is provided inside the forming plate and a water-permeable membrane is provided inside the holding groove, and a vacuum pump is provided inside the forming plate. There are several groups of water-permeable holes, and the water-permeable holes are arranged in a tapered structure from top to bottom. A drain port is provided on the side of the forming box, and the drain port is connected to the interior of the forming box. The pulp is transported to the holding groove of the forming plate through the pulp conveying mechanism. The lifting screw drives the sealing seat to descend to seal the forming box. At the same time, the drain port is closed, and the vacuum pump is started to vacuum the interior of the forming box. As the air is extracted, the internal pressure increases, causing the water in the pulp to be separated out and separated out through the water-permeable membrane. The water flows into the lower part of the forming box through the water-permeable membrane and the setting of the water-permeable hole can effectively prevent the pulp from flowing out, thereby reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a side view structural diagram of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 4 This is a schematic diagram of the bottom structure of the utility model;

[0017] Figure 5 This is a schematic diagram of the structure of the forming plate of the utility model.

[0018] In the figure: 1. Forming box; 2. Support frame; 3. Drain outlet; 4. Forming trough; 5. Lifting screw; 6. Mounting plate; 7. Sealing seat; 8. Pulp connecting pipe; 9. Vacuum connecting pipe; 10. Conveying pipe; 11. Vacuum pump; 12. Connecting flange; 13. Sealing block; 14. Mounting frame; 15. Forming plate; 16. Ramp; 17. Driver; 18. Driver box; 19. Driver wheel; 20. Linkage box; 21. Driver chain; 22. Holding trough; 23. Water-permeable membrane; 24. Water-permeable hole. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] See also Figure 1-5 The utility model provides a technical solution: a vacuum forming device for pulp molded products.

[0021] Example 1: With regard to the above-mentioned problem 1 to be solved: Most existing pressing methods adopt vacuum pressing. During the vacuum pressing process, part of the pulp will leak out, causing a certain amount of waste.

[0022] The solution is as follows: A vacuum forming device for pulp molded products, comprising: a forming box 1, a lifting screw 5 is provided inside the forming box 1 and a mounting plate 6 is provided on the surface of the lifting screw 5, a sealing seat 7 is provided on the upper part of the mounting plate 6 and a pulp connecting pipe 8 and a vacuum connecting pipe 9 are provided on the upper part of the sealing seat 7, the pulp connecting pipe 8 is connected to the pulp conveying mechanism, a vacuum pump 11 is provided on the side of the forming box 1 and a conveying pipe 10 is provided on the upper part of the vacuum pump 11, the conveying pipe 10 is connected to the vacuum connecting pipe 9, the vacuum connecting pipe 9 extends to the lower part of the sealing seat 7, the interior of the forming box 1 A molding groove 4 is provided on the top and a mounting bracket 14 is provided inside the molding groove 4. A molding plate 15 is provided on the surface of the mounting bracket 14. A holding groove 22 is provided inside the molding plate 15 and a water-permeable membrane 23 is provided inside the holding groove 22. Several groups of water-permeable holes 24 are provided inside the molding plate 15 and the water-permeable holes 24 are arranged in a tapered structure from top to bottom. A drain port 3 is provided on the side of the molding box 1 and the drain port 3 is connected to the interior of the molding box 1. A lifting screw 5 is provided inside the molding box 1 and a mounting plate 6 is provided on the surface of the lifting screw 5. A sealing seat 7 is provided on the upper part of the mounting plate 6 and the sealing seat 7 is provided. A pulp connection pipe 8 and a vacuum connection pipe 9 are provided at the upper part. The pulp connection pipe 8 is connected to the pulp conveying mechanism. A vacuum pump 11 is provided on the side of the forming box 1 and a conveying pipe 10 is provided on the upper part of the vacuum pump 11. The conveying pipe 10 is connected to the vacuum connection pipe 9. The vacuum connection pipe 9 extends to the lower part of the sealing seat 7. A mounting frame 14 is provided inside the forming box 1 and a forming plate 15 is provided on the surface of the mounting frame 14. A holding groove 22 is provided inside the forming plate 15 and a water-permeable membrane 23 is provided inside the holding groove 22. Several groups of water-permeable holes 24 are provided inside the forming plate 15 and the water-permeable holes 24 are gradually reduced from top to bottom. The molding box 1 is provided with a structure in which a drain port 3 is provided on the side thereof and the drain port 3 is communicated with the interior of the molding box 1. The pulp is conveyed to the holding groove 22 of the molding plate 15 by the pulp conveying mechanism. The lifting screw 5 drives the sealing seat 7 to descend to seal the molding box 1. At the same time, the drain port 3 is closed, and the vacuum pump 11 is started to vacuum the interior of the molding. As the air is extracted, the internal pressure increases, causing the water in the pulp to be separated out and precipitated out through the water-permeable membrane 23. The water flows into the lower part of the molding box 1 through the water-permeable hole 24. The setting of the water-permeable membrane 23 and the water-permeable hole 24 can effectively prevent the pulp from flowing out, thereby reducing the waste of resources.

[0023] Further improvements, such as Figure 2 As shown, a sealing block 13 is provided at the lower portion of the sealing seat 7 and the sealing block 13 is engaged with the opening of the forming box 1 , and this arrangement ensures the sealing of the forming box 1 .

[0024] Further improvements, such as Figure 2As shown: the surfaces of the pulp connecting pipe 8 and the vacuum connecting pipe 9 are both provided with connecting flanges 12 , which ensure the stability and sealing of the connection of the conveying pipe 10 .

[0025] Further improvements, such as Figure 1 As shown: a support frame 2 is provided at the bottom of the molding box 1 and the support frame 2 is fixedly connected to the molding box 1 , which ensures the stability of the molding box 1 .

[0026] Further improvements, such as Figure 3 As shown: the interior of the forming box 1 is provided with a slope 16 and the slope 16 extends toward the drain outlet 3. This arrangement facilitates the gathering of the precipitated water and increases the drainage effect.

[0027] Example 2: Aiming at the above problem to be solved: the cover of the vacuum forming equipment needs to be opened and closed manually, which is inconvenient to operate.

[0028] The solution is as follows: Figure 4 As shown: the bottom of the lifting screw 5 extends to the outside of the molding box 1 and is installed with a linkage box 20, the bottom of the molding box 1 is provided with a drive box 18, and the inside of the drive box 18 and the linkage box 20 are both provided with a drive wheel 19, the side of the drive wheel 19 in the drive box 18 is provided with a driver 17, and the drive wheel 19 in the linkage box 20 is connected to the lifting screw 5, and the inside of the drive box 18 and the linkage box 20 are both provided with a drive chain 21, and the drive chain 21 is wound around the surface of the drive wheel 19. The drive wheel 19 in the drive box 18 is driven to rotate by the driver 17, and the drive wheel 19 in the linkage box 20 is synchronously driven to rotate by the drive chain 21, so that the lifting screws 5 can rotate synchronously, thereby driving the sealing seat 7 to move up and down, thereby realizing the automatic opening and closing of the sealing seat 7.

[0029] Working principle: The utility model conveys the pulp to the holding groove 22 of the forming plate 15 through the pulp conveying mechanism, and the lifting screw 5 drives the sealing seat 7 to descend to seal the forming box 1. At the same time, the drain port 3 is closed, and the vacuum pump 11 is started to vacuum the interior of the forming box. As the air is extracted, the internal pressure increases, causing the water in the pulp to be separated out and precipitated through the water-permeable membrane 23, and the water flows into the lower part of the forming box 1 through the water-permeable hole 24. The arrangement of the water-permeable membrane 23 and the water-permeable hole 24 can effectively prevent the pulp from flowing out together, reducing resource waste. The drive wheel 19 in the drive box 18 is driven to rotate by the driver 17, and the drive wheel 19 in the linkage box 20 is driven to rotate synchronously through the drive chain 21, so that the lifting screws 5 can rotate synchronously, thereby driving the sealing seat 7 to move up and down, realizing the automatic opening and closing of the sealing seat 7.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that come within the meaning and range of equivalents of the claims be included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0031] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which can be mechanical connection or electrical connection, or internal communication between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may change.

[0032] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A vacuum forming device for pulp molded products, characterized in that: include: A forming box (1), wherein a lifting screw (5) is provided inside the forming box (1), and a mounting plate (6) is provided on the surface of the lifting screw (5), a sealing seat (7) is provided on the upper part of the mounting plate (6), and a pulp connecting pipe (8) and a vacuum connecting pipe (9) are provided on the upper part of the sealing seat (7), the pulp connecting pipe (8) is connected to the pulp conveying mechanism, a vacuum pump (11) is provided on the side of the forming box (1), and a conveying pipe (10) is provided on the upper part of the vacuum pump (11), the conveying pipe (10) is connected to the vacuum connecting pipe (9), and the vacuum connecting pipe (9) extends to the sealing seat (7). The lower part of the seat (7) is provided with a forming groove (4) inside the forming box (1) and a mounting frame (14) inside the forming groove (4), a forming plate (15) is provided on the surface of the mounting frame (14), a holding groove (22) is provided inside the forming plate (15) and a water-permeable membrane (23) is provided inside the holding groove (22), a plurality of groups of water-permeable holes (24) are provided inside the forming plate (15), and the water-permeable holes (24) are arranged in a tapered structure from top to bottom, a drain port (3) is provided on the side of the forming box (1), and the drain port (3) is connected to the inside of the forming box (1).

2. The vacuum forming equipment for pulp molded products according to claim 1, characterized in that: A sealing block (13) is provided at the lower portion of the sealing seat (7), and the sealing block (13) is engaged with the opening of the molding box (1).

3. The vacuum forming equipment for pulp molded products according to claim 1, characterized in that: The surfaces of the pulp connecting pipe (8) and the vacuum connecting pipe (9) are both provided with connecting flanges (12).

4. The vacuum forming equipment for pulp molded products according to claim 1, characterized in that: A support frame (2) is provided at the bottom of the molding box (1), and the support frame (2) and the molding box (1) are fixedly connected.

5. The vacuum forming equipment for pulp molded products according to claim 1, characterized in that: A slope (16) is provided inside the molding box (1), and the slope (16) extends toward the drain outlet (3).

6. The vacuum forming equipment for pulp molded products according to claim 1, characterized in that: The bottom of the lifting screw (5) extends to the outside of the molding box (1) and is installed with a linkage box (20), the bottom of the molding box (1) is provided with a drive box (18), and the insides of the drive box (18) and the linkage box (20) are both provided with a drive wheel (19), the side of the drive wheel (19) in the drive box (18) is provided with a driver (17), and the drive wheel (19) in the linkage box (20) is connected to the lifting screw (5), and the insides of the drive box (18) and the linkage box (20) are both provided with a drive chain (21), and the drive chain (21) is wound around the surface of the drive wheel (19).

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