TWM536153U - Wet pulp molding assembly - Google Patents

Abstract

The utility model provides a wet pulp molding assembly for forming a paper shape product, which comprises a mold and a formed mesh. The mold comprises at least two sub molds for forming a wet pulp body, and the wet pulp body has a geometric shape with a thickness. The formed mesh is disposed between the at least two molds, and configured corresponding to a configuration of the wet pulp body. Before forming the paper shape product between the at least two sub molds, the mesh is used to retain the wet pulp body and to prevent the wet pulp body from entering into an inside of the at least two sub molds, so as to avoid blockage of drain of water and/or vapor contained within the wet pulp body. The formed mesh is a single piece and integrally manufactured by directly pressing a single flat metal mesh.

Description

Pulp molding die assembly

The present invention relates to a pulp molding mold assembly, and more particularly to a web in a pulp molding mold assembly.

In the technical field of pulp molding, generally, a mesh (having a porous mesh) is disposed between a mold and a pulp molded body to avoid adhesion of the molded body of the pulp. On the surface of the mold. Referring to Figure 1, a schematic diagram of a network 10 of the prior art. In the prior art, the web 10 includes a first side 11, a second side 12, and a third side 13. The first face 11, the second face 12, and the third face 13 are not integrally formed. In the actual manufacturing process, the first face 11 and the second face 12 are joined together by welding or other means, and the second face 12 and the third face 13 are also connected in the same manner. However, it takes a lot of time to use such a method of welding, and it may also cause problems due to manual errors.

Therefore, it is necessary to propose a pulp molding mold assembly to solve the above technical problems.

In order to overcome the above-mentioned shortcomings of the prior art, one of the main objects of the present invention is to provide a pulp molding die assembly for molding a pulp molded body into a paper molded article comprising a mold and a mesh.

The mold includes at least two sub-dies for forming the pulp molded body, the pulp molded body being a geometric shape having a thickness. The mesh is disposed in one of the at least two sub-dies and has a shape corresponding to the shape of the pulp molded body. Before forming the paper molded article between the at least two sub-molds, the woven mesh is used to retain the pulp molded body and prevent the pulp molded body from entering the interior of the at least two sub-mold to avoid obstructing the pulp Emission of water and/or water vapor in the molded body. The mesh is integrally formed.

In a preferred embodiment, the number of meshes is between 20 and 120.

In a preferred embodiment, the mesh is made of metal.

In a preferred embodiment, the mesh is made by one of a method of diagonal weaving, plain weaving, weaving, weaving, weaving, flat weaving, and the like.

In a preferred embodiment, the mesh is annealed stainless steel.

Compared with the conventional technology, this creation can save a lot of preparation time of the net by selecting a specific material and a mesh of a specific mesh to prepare an integrally formed net by punching.

10, 160‧‧‧

11‧‧‧ first side

12‧‧‧ second side

13‧‧‧ third side

100‧‧‧Mold components

120‧‧‧Mold

130, 140‧‧‧ sub-mold

150‧‧‧Pressing tools

155‧‧‧First direction

170‧‧‧Pulp molded body

S01-S03‧‧‧Steps

1 is a schematic view showing a mesh of a conventional pulp molding die assembly; FIG. 2 is a cross-sectional view showing a pulp molding die assembly and a pulp molded body of the present invention; FIG. 3, FIG. A schematic diagram of the mechanical processing of the network in the middle; FIG. 4 is a flow chart of the manufacturing method of the pulp molding mold assembly of the present invention.

In order to make the above features and advantages of this creation more obvious, the following is a special implementation. The details are as follows. The patent scope of the present invention is not limited to the embodiments and should be defined by the scope of the patent application.

Fig. 2 is a cross-sectional view showing the pulp molding die assembly 100 of the present invention and the pulp molded blank body 170. The mold assembly 100 includes a mold 120 and a web 160. The mold 120 includes two sub-dies 130, 140 for forming the pulp molded blank body 170, the pulp molded blank body 170 being a geometric shape having a thickness. In the preferred embodiment, the pulp molded body 170 includes only one recess for receiving an article, such as an electronic product, such as a cell phone. However, depending on the requirements, the pulp molded body 170 can be of a different shape, such as a plurality of grooves and/or different shapes such as openings in the middle. The mesh 160 is disposed in one of the two sub-dies 130, 140. In the preferred embodiment, the mesh 160 is disposed over the sub-mold 130 and has a shape corresponding to the shape of the pulp molded body 170. Before forming a paper molded article between the two sub-dies 130, 140, the mesh 160 is used to retain the pulp molded blank body 170 and prevent the pulp molded blank body 170 from entering the at least two sub-die 130, The interior of 140 is prevented from obstructing the discharge of water and/or water vapor in the pulp molded body 170. The mesh 160 is integrally formed.

In general, when the mesh number (the number of holes per square inch) of the mesh 160 is too small, the processing is difficult and it is easy to break during the processing; and when the mesh number of the mesh 160 is too large, the processing is performed. During the process, it is easily deformed by pulling, and after the processing is completed, the mechanical strength of the net 160 itself is also lowered because the mesh is too large. Therefore, preferably, when the net number of the net 160 is between 20 and 120, the net 160 can be prevented from being broken or deformed during the press working. Further, when the mesh number of the net 160 is between 40 and 100, the mesh 160 is not easily broken or deformed in the press working, and at the same time, it can have sufficient mechanical strength to facilitate mass production.

In general, the mesh 160 is made of metal, which is twill weave, plain weave, One of the methods of weaving, weaving, weaving, and flat weaving. Preferably, the stainless steel is subjected to an annealing process. However, this creation does not limit the use of other non-metal or metal alloys as materials for the web 160.

Fig. 3 is a schematic view showing the completion of the machining of the net 160 in Fig. 2. The web 160 is machined by a stamping tool 150 having a bump to form a flat web 160 to produce the web 160 having a recess. The punching tool 150 is moved in the direction of the first direction 155, and the flat web is processed by plastic deformation to obtain the net 160.

Fig. 4 is a flow chart showing a method of manufacturing the pulp molding die assembly 100 of the present invention. For the component name, please refer to Figure 2, and I will not go into details. First, step S01 is performed to prepare a flat mesh. Next, in step S02, the flat web is processed by at least one press process to form a net 160 corresponding to the shape of the pulp molded body 170. Next, step S03 is performed to fix the mesh 160 to one of the two sub-dies 130, 140 of a mold 120.

The above-mentioned embodiments are only examples for convenience of description, and the scope of the claims claimed herein is based on the scope of the application, and is not limited to the above embodiments.

100‧‧‧Mold components

120‧‧‧Mold

130, 140‧‧‧ sub-mold

160‧‧‧

170‧‧‧Pulp molded body

Claims (5)

A pulp molding die assembly for molding a pulp molded body into a paper molded article, comprising: a mold comprising at least two sub-dies for forming the pulp molded body, the pulp molded embryo The body is a geometric shape having a thickness; and a mesh is disposed on one of the at least two sub-dies, and has a shape corresponding to the shape of the pulp molded body, wherein the paper mold is formed between the at least two sub-dies Before the plastic article, the mesh is used to retain the pulp molded body and prevent the pulp molded body from entering the interior of the at least two sub-mold, thereby avoiding hindering water and/or water vapor in the pulp molded body. Discharge, the net is integrated. The pulp molding die assembly of claim 1, wherein the number of meshes is between 20 and 120. The pulp molding die assembly of claim 2, wherein the mesh is made of a metal material. The pulp molding die assembly of claim 3, wherein the mesh is made of one of a twill weave, a plain weave, a weave, a weave, a weave, a flat weave, and the like. The pulp molding die assembly of claim 1, wherein the wire is annealed stainless steel.