CN215714283U

CN215714283U - Mould with pattern paper pulp moulded product

Info

Publication number: CN215714283U
Application number: CN202121217059.8U
Authority: CN
Inventors: 郭珍珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2022-02-01
Anticipated expiration: 2031-06-02

Abstract

The utility model provides a mould of a paper pulp moulding product with a pattern, belonging to the technical field of paper pulp moulding. The method solves the technical problems of how to realize the production of the paper pulp molding product containing the patterns with strong three-dimensional sense and reduce the production cost. The utility model comprises an upper die and a lower die, wherein a cavity is formed between the lower die and the upper die, a filter screen die is arranged on the lower die, a water outlet and air outlet hole is formed in the lower die, a first filter hole and a second filter hole are formed in the filter screen die, and the first filter hole is arranged in patterns or characters. According to the utility model, the steps of wet blank forming and pattern processing are completed at one time through the filter screen, and when the drainage forming of the wet blank is ensured, the pattern processing process of a molded product can be omitted, the process is simplified, the efficiency is improved, and the manufacturing cost is reduced.

Description

Mould with pattern paper pulp moulded product

Technical Field

The utility model belongs to the technical field of paper pulp molding, and relates to a mold of a paper pulp molding product with a pattern.

Background

The pulp molding product is a novel packaging material which is developed rapidly in recent years and is an excellent substitute for wood. It uses waste paper as raw material, and uses a special mould to mould a paper product with a certain form on the moulding machine. The manufacturing process is completed by the working procedures of pulping, adsorption molding, drying and shaping and the like, and is harmless to the environment; can be recycled. Pulp molding is used for manufacturing lunch boxes and tableware, besides industrial cushioning packaging.

The structure of the pulp molding product in the current market is single, and is mainly determined by a mold during processing. The mold is provided with a screen mold which is used for dehydrating the wet blank and adsorbing the wet blank to form a screen shape, so that the pulp molded product on the market often forms the screen shape. In order to make the pulp molding product contain patterns, the prior art mainly adopts the following method, when the pulp molding is made, a mold is provided with a three-dimensional pattern, and the pulp can be provided with the patterns after being adsorbed on the mold, but the production cost of the pulp molding product with the patterns formed by the method is higher. The applicant proposes a pulp molded product with a pattern and a method for manufacturing the same (application number: CN202011213296.7), forming pulp into a pulp molded wet blank, and printing the pattern on a sheet to form a pattern substrate; then placing the pattern substrate on the inner surface of the mold cavity or sticking the pattern substrate on the inner and outer surfaces of the wet pulp molding blank, and then placing the wet pulp molding blank into the mold cavity again for extrusion, so that the pattern substrate is embedded in the side wall of the wet pulp molding blank and simultaneously the wet pulp molding blank is dewatered; finally, heating to make the pattern substrate and the parison cross-linked and solidified to form a whole. The patterned pulp molded product molded in this way requires a patterned substrate to be prepared in advance and the stereoscopic impression of the pattern is not strong.

Disclosure of Invention

The utility model aims to solve the problems in the prior art, provides a mould for a paper pulp moulded product with a pattern, and aims to solve the technical problems that: how to realize the production of the paper pulp molding product containing the pattern with strong stereoscopic impression and reduce the production cost.

The purpose of the utility model can be realized by the following technical scheme: the mould with the pattern paper pulp molding product comprises an upper mould and a lower mould, wherein a cavity is formed between the lower mould and the upper mould, a filter screen mould is arranged on the lower mould, and a water outlet and air outlet hole is formed in the lower mould.

In the present case, the shape and the lower mould phase-match of filter screen mould, be equipped with first filtration hole and second filtration hole on the filter screen mould, can guarantee the water passing rate of wet embryo, the structure of first filtration hole arrangement pattern or characters makes wet embryo to first filtration hole bulge part in drainage process, can form the pulp moulded product who contains the third dimension pattern after the wet embryo shaping, and the water passing area of the pattern on the filter screen mould or characters accounts for more than 10% of filter screen mould bottom area in the present case, the original efficiency of filter screen mould when wet embryo drainage can be guaranteed to this kind of structure, and can directly form the pattern effect in pulp moulded product. The pattern of the pulp molded product is formed while being washed with water, and compared with the pattern processing after forming, the pattern of the molded product in the scheme is firmer and is not easy to fall off. The cost for arranging the patterns or characters on the filter screen mould is far less than the cost for arranging the patterns on the mould, and the filter screen mould with different patterns can be arranged, so that the paper pulp moulding product can be formed into various patterns, and is more attractive.

In the above mould with pattern pulp moulding product, the hole pattern of the first filtering holes is round hole, polygonal hole, strip-shaped hole or irregular hole, and the pattern is formed by mixing and arranging one or more than two of the above hole patterns. The shapes of the first filter holes are various, so that the paper pulp drainage is facilitated, and various patterns with different shapes can be formed after the paper pulp drainage.

In the above mold for a pulp molded article having a pattern, the first filter holes are arranged linearly in a pattern or in a lump pattern. The displacement is great in the middle of the filter screen, and first filtration hole can set up in the middle of the filter screen mould, and the first filtration hole that sets up the block pattern near filter screen mould center can improve the drainage rate.

In the above mould with pattern pulp moulding product, the pattern of the first filtering holes is distributed symmetrically.

In the above mould with pattern pulp moulding product, the filter screen mould is a plate-shaped structure with holes. The first filtering holes and the second filtering holes are formed by laser cutting of the thin plate, and the shapes of the first filtering holes can be accurately obtained through laser cutting, so that the water passing efficiency of the filter screen die is ensured, and the patterns of the molded product are more attractive.

In the above mould with pattern pulp moulding product, there is a gap between the screen mould and the upper surface of the lower mould.

In the mould with the pattern pulp molding product, the upper surface of the lower mould is in a concave plate shape, a bottle shape or a cup shape.

The pulp molding product with the pattern comprises an integrally molded body, wherein the body is completely made of pulp molding materials, and is characterized in that protruding particles or protruding strips are arranged at the bottom of the body, and the particles or the protruding strips form the pattern or characters.

In the patterned pulp molded product, the particles are round particles, polygonal particles or irregular particles.

In the pulp molded product with the pattern, the pattern is formed by mixing and arranging one or more than two of the particles.

Compared with the prior art, the utility model has the following advantages:

1. according to the utility model, the steps of wet blank forming and pattern processing are completed at one time through the filter screen, and when the drainage forming of the wet blank is ensured, the pattern processing process of a molded product can be omitted, the process is simplified, the efficiency is improved, and the manufacturing cost is reduced.

2. The pattern of the molded product of the utility model is formed when pulp is filtered, and the pattern of the product becomes firmer and is not easy to fall off and deform.

Drawings

FIG. 1 is a schematic view of a half-section of the present invention;

FIG. 2 is a schematic view of a half-section of the present invention;

FIG. 3 is a perspective view of the heat insulating base;

FIG. 4 is a schematic perspective view of a molding base;

FIG. 5 is a schematic diagram of a screen mold comprising strip shaped openings;

FIG. 6 is a schematic structural view of a screen mold comprising circular holes, strip-shaped holes and polygonal holes;

FIG. 7 is an enlarged view of a portion of FIG. 6;

FIG. 8 is a schematic structural view of the pulp molded product with pattern.

In the figure, 1, an upper die; 11. molding surface; 2. a lower die; 3. a water outlet vent hole; 4. a filter screen mould; 41. a first filtering hole; 42. a second filtering hole; 411 round hole; 412. a strip-shaped hole; 413. a polygonal hole; 5. a gap; 6. a body; 61. round particles.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the mold comprises an upper mold 1 and a lower mold 2, wherein the upper surface of the lower mold 2 is matched with the upper mold forming surface 11 in shape and forms a cavity, such as a plate, between the upper surface of the lower mold 2 and the upper mold 1 forming surface 11, the upper mold is a convex forming surface 11, the upper surface of the lower mold 2 is concave, such as a bottle or cup, the upper mold 1 is a concave forming surface 11, and the upper surface of the lower mold 2 is a convex bottle or cup. The upper surface of the lower die 2 is provided with a filter screen die 4 with the shape matched with that of the upper surface of the lower die 2, and the filter screen die 4 is of a plate-shaped structure with holes and has the function of depositing pulp in the dilute pulp on the filter screen die 4. In the filter screen mold 4, the hole pattern of the first filtering holes 41 is a circular hole 411, a polygonal hole 413, a strip-shaped hole 412 or an irregular hole, the pattern is formed by one or more than two of the circular hole 411, the polygonal hole 413, the strip-shaped hole 412 or the irregular hole in a mixed arrangement mode, the water passing area of the pattern or the characters on the filter screen mold 4 accounts for more than 10% of the area of the bottom of the filter screen mold 4, and the water drainage rate is guaranteed. The shapes of the first filtering holes 41 are various, so that pulp drainage is facilitated, and various patterns with different shapes can be formed after pulp drainage. A gap 5 is arranged between the filter screen die 4 and the upper surface of the lower die 2, a plurality of through water and air holes 3 are arranged in the lower die 2, and the water and air holes 3 are communicated with the gap 5.

Specifically, the shape of the filter screen mold 4 is that the pattern on the bottom of the filter screen mold 4 shown in fig. 5 is composed of first filter holes 41, as shown in fig. 6 and 7, fig. 6 is a larger scale diagram of the filter screen mold 4 for better clarity, a whale-shaped pattern is formed on the bottom of the filter screen mold 4, the whale-shaped pattern is mainly formed by circular holes 411, strip-shaped holes 412 and polygonal holes 413, the polygonal holes 413 are hexagonal holes in the embodiment, the concentrated arrangement of the first filter holes 41 in the whale shape at the bottom of the filter screen mold, that is, the circular holes 411, the strip-shaped holes 412 and the hexagonal holes, is greater than the concentration of the second filter holes 42 outside the whale shape, the filtered water amount in the middle of the filter screen mold 4 is greater than the filtered water amount at the periphery of the filter screen mold 4, and the more first filter holes 41 are arranged near the center of the filter screen mold 4, so as to improve the water discharge rate.

As shown in fig. 8, that is, the pulp molded product obtained by the mold of the present embodiment includes an integrally formed body 6, the bottom of the body 6 has protruding particles or protruding strips, the particles are round particles 61 or polygonal particles or irregular particles, the particles or protruding strips form patterns or characters, the embodiment adopts round particles 61, and the characters of the body 6 are formed by mixing and arranging the above particles.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Although the 1, cope mold is used more herein; 11. molding surface; 2. a lower die; 21. a water outlet vent hole; 4. a filter screen mould; 41. a first filtering hole; 42. a second filtering hole; 411 round hole; 412. a strip-shaped hole; 413. a polygonal hole; 5. a gap; 6. a body; 61. round particles, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.

Claims

1. The utility model provides a mould with pattern pulp molding product, includes mould (1) and lower mould (2), forms the die cavity between lower mould (2) and last mould install filter screen mould (4) on lower mould (2), lower mould (2) on still be equipped with out water venthole (3), its characterized in that is equipped with first filtration hole (41) and second filtration hole (42) on filter screen mould (4), first filtration hole (41) are arranged into pattern or characters.

2. The mold for pulp molding with pattern according to claim 1 wherein the hole pattern of the first filtering holes (41) is a circular hole (411) or a polygonal hole (413) or a bar-shaped hole (412) or an irregular hole, and the pattern is formed by mixing and arranging one or more than two of the above hole patterns.

3. The mold for pulp molded products having pattern according to claim 2 wherein the first filtering holes (41) are arranged linearly in a pattern or in a lump pattern.

4. The mold for pulp molding with pattern according to claim 1, 2 or 3, wherein the pattern of the first filtering holes (41) is symmetrically distributed.

5. The mold for pulp molded products with patterns according to claim 4 is characterized in that the screen mold (4) is a plate-like structure with holes.

6. The mold for pulp molded products with patterns according to claim 1 is characterized in that a gap (5) is formed between the screen mold (4) and the upper surface of the lower mold (2).

7. The mold for pulp molded products with patterns according to claim 3 is characterized in that the upper surface of the lower mold (2) is in the shape of a concave plate or a bottle or a cup.

8. The pulp molding product with the pattern comprises an integrally molded body, wherein the body is completely made of pulp molding materials, and is characterized in that protruding particles or protruding strips are arranged at the bottom of the body (6), and the particles or the protruding strips form the pattern or characters.

9. The patterned pulp molded article according to claim 8 wherein the particles are round particles (61) or polygonal particles or irregular particles.

10. The pulp molded product with pattern according to claim 8 wherein the pattern is formed by mixing one or more of the above particles.