Molded pulp slip casting process device

Abstract

The utility model provides a pulp molding slip casting process device. The pulp molding slip casting process device comprises a pulp supply pipeline, a slip casting nozzle, a transition plate and a forming mold, the grouting nozzle is connected to the slurry supply pipeline, and the slurry supply pipeline is communicated with the grouting groove; the grouting nozzle is a shower type nozzle, a transition plate is arranged below the grouting nozzle, and a forming mold is arranged below the transition plate. The slurry injection nozzle can uniformly spray slurry in a closed space, and when the slurry passes through the transition plate, meshes of the transition plate uniformly disperse the slurry on a forming mold, so that the forming uniformity of a wet blank is further ensured, the thickness uniformity of a finished product is further ensured, and the gram weight between molds is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of pulp molding equipment, and in particular relates to a pulp molding slip injection molding process device. Background Art

[0002] Although plastic products play an indispensable role in modern life, their potential threat to the earth's ecosystem and human health cannot be ignored. The widespread presence of microplastics not only pollutes the environment, but has also been found in the human body, posing a threat to cardiovascular and renal health.

[0003] In this context, biodegradable products have gradually become the new favorite of the market with their environmental and health advantages. In the international market, many catering industries have completed the transformation to biodegradable products; the domestic market is also responding positively, and more and more catering companies are beginning to adopt such products.

[0004] However, the existing pulp molding technology has some limitations in the production process. For example, the Chinese invention specification with publication number CN114351509A discloses a slip injection molding machine, which directly flows the slurry into the mold through the slip injection port. However, due to the porosity and adsorption of the mold, the thickness of the wet embryo formed between the molds is inconsistent, which ultimately affects the uniformity of the grammage of the finished product. This not only limits the production efficiency, but also affects the consistency and market competitiveness of the product. Utility Model Content

[0005] In view of the shortcomings of the existing grouting molding technology in terms of the consistency of wet embryo thickness, the utility model provides a pulp molding grouting molding process device, which aims to achieve uniform distribution of slurry on the molding mold through a new process device design, thereby ensuring uniform thickness of the wet embryo, improving the quality of the finished product, and meeting sustainable development and environmental protection requirements.

[0006] In order to achieve the above utility model purpose, the technical solution of the utility model is as follows:

[0007] The utility model provides a pulp molding grouting forming process device, comprising a grout supply pipeline, a grouting nozzle, a transition plate and a forming mold; the grouting nozzle is connected to the grout supply pipeline, and the grout supply pipeline is connected to the grouting groove; the grouting nozzle is a shower-type nozzle, a transition plate is provided below the grouting nozzle, and a forming mold is arranged below the transition plate.

[0008] Preferably, the grouting tank is an automatic slurry dosage control device on the molding machine.

[0009] Preferably, the transition plate is at least one layer of stainless steel mesh.

[0010] Preferably, the mesh of the sieve is circular with a diameter of 5 to 8 mm.

[0011] Preferably, the inner cavity of the molding die is connected to a vacuum pump.

[0012] In the utility model, the four sides of the pulp molding slip injection molding process device are closed.

[0013] Compared with the prior art, the advantages and beneficial effects of the utility model are: the grouting nozzle can evenly spray the slurry in a closed space, and when the slurry passes through the transition plate, the mesh holes of the transition plate evenly disperse the slurry on the forming mold, further ensuring the uniformity of the wet embryo forming, and then ensuring the uniform thickness of the finished product, and the gram weight between molds is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Numbers in the figure: 1. slurry supply pipeline; 2. grouting nozzle; 3. transition plate; 4. forming mold; 5. grouting tank; 6. shower-type nozzle. DETAILED DESCRIPTION

[0016] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0017] The pulp molding grouting forming process device described in the utility model is as follows Figure 1 As shown, it is closed on all sides and includes a slurry supply pipe 1, a grouting nozzle 2, a transition plate 3 and a forming mold 4. The grouting nozzle 2 is connected to the slurry supply pipe 1, and the slurry supply pipe 1 is connected to the grouting tank 5. The grouting tank 5 is located on the forming machine and has the function of automatically controlling the amount of slurry. The grouting nozzle 2 adopts a shower-type nozzle 6, and a plurality of spray holes are evenly arranged on its bottom surface to achieve uniform spraying of the pulp. The transition plate 3 is arranged below the grouting nozzle 2 and is composed of at least one layer of stainless steel screen. The diameter of the circular mesh of the screen is between 5 and 8 mm, ensuring that the slurry can be evenly dispersed on the forming mold 4 when passing through. This design further ensures the uniformity of the forming of the wet embryo, thereby ensuring the thickness consistency of the finished product and the gram weight stability between molds.

[0018] A forming mold 4 is arranged below the transition plate 3, and its inner cavity is connected to a vacuum pump to achieve rapid dehydration of the wet embryo, and then transfer it to a hot pressing mold for drying and shaping.

[0019] The working method of the utility model is as follows: a low-concentration slurry is stored in the grouting tank 5 of the molding machine, and the slurry is transported through the slurry supply pipeline 1 and evenly sprayed on the transition plate 3 by the shower-type grouting nozzle 2. The slurry evenly enters the molding mold 4 through the circular mesh of the transition plate 3, and the molding mold 4 has a porous structure and a molding net with a specific mesh is attached to its surface. Through vacuum suction, a vacuum is formed in the inner cavity of the molding mold 4, so that the fibers in the pulp are deposited and attached to the molding net, and a large amount of water is taken away during the suction process.

[0020] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the above embodiments, or to replace some of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions claimed to be protected by the present invention.

Claims

1. A pulp molding slip injection molding process device, characterized in that: The invention comprises a grout supply pipeline (1), a grouting nozzle (2), a transition plate (3) and a forming mold (4); the grouting nozzle (2) is connected to the grout supply pipeline (1), and the grout supply pipeline (1) is connected to a grouting groove (5); the grouting nozzle (2) is a shower-type nozzle (6), a transition plate (3) is provided below the grouting nozzle (2), and a forming mold (4) is provided below the transition plate (3).

2. The pulp molding slip injection molding process device according to claim 1, characterized in that: The grouting tank (5) is an automatic slurry dosage control device on the molding machine.

3. The pulp molding slip injection molding process device according to claim 1, characterized in that: The transition plate (3) is at least one layer of stainless steel screen.

4. The pulp molding slip injection molding process device according to claim 3, characterized in that: The mesh of the sieve is circular with a diameter of 5 to 8 mm.

5. The pulp molding slip injection molding process device according to claim 1, characterized in that: The inner cavity of the molding die (4) is connected to a vacuum pump.

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