CN111055368A

CN111055368A - Mould convenient to exhaust and formed based on microporous resin material

Info

Publication number: CN111055368A
Application number: CN201911301737.6A
Authority: CN
Inventors: 王学强; 王平泽; 张龙宜
Original assignee: Shandong China-Europe Mould Technology Research Institute Co Ltd; Xigen Shanghai New Material Technology Co Ltd
Current assignee: Shandong China-Europe Mould Technology Research Institute Co Ltd; Xigen Shanghai New Material Technology Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-04-24

Abstract

The invention belongs to the field of mold manufacturing, and in particular relates to a mold based on a microporous resin material for easy exhaust, comprising a mold body, and is characterized in that the mold body includes an outer mold and an inner mold sleeved and fixed inside the outer mold, The outer surface of the inner mold or the inner surface of the outer mold is distributed with ventilation grooves, and an air inlet through hole is arranged in the center of the bottom of the outer mold, and the air inlet through hole is communicated with the ventilation groove; the inner mold is composed of micro-holes. Made of resin material. The invention can facilitate ventilating and demoulding while satisfying the ceramic molding requirements, and the mold making process is simple, thus effectively reducing the production cost and improving the production efficiency.

Description

Mould convenient to exhaust and formed based on microporous resin material

Technical Field

The invention belongs to the field of ceramic molds, and particularly relates to a mold which is formed on the basis of a microporous resin material and is convenient for exhaust.

Background

The ceramic is the traditional industry of China, has thousands of years of production history, and the ceramic yield of China currently accounts for about 70 percent of the whole world, so that the ceramic is a famous and genuine ceramic production big country. The annual output of domestic ceramics in China exceeds 300 hundred million, most of domestic ceramics are formed by rolling, 200 and 300 gypsum molds are required to be arranged in one traditional rolling machine, and because the gypsum has low strength and is easy to wear, after one gypsum mold is used for several times, the surface of the gypsum mold begins to become rough, and the forming quality of a ceramic blank is seriously influenced. In addition, the average life of the plaster mold is only 80-100 times, and the mold needs to be replaced frequently, so that a large amount of plaster is consumed, resources are wasted, and a large amount of manpower is needed for processing the large-quantity plaster mold. The financial and manpower expenses spent by the ceramic enterprises on the aspect of the mold occupy a large proportion, so that the burden of the enterprises is increased, and the economic benefit is influenced. And a large amount of waste gypsum is generated by using the moulds, and dozens of tons of waste gypsum need to be treated every day in a ceramic factory with a certain scale, so that great pressure is also exerted on environmental protection, energy conservation and emission reduction. Therefore, the use of the plaster mold brings great burden to enterprises, influences the benefits of the enterprises, and is a problem to be solved urgently.

At present, some enterprises adopt microporous resin materials to replace gypsum, the microporous resin has good water and air permeability, can completely meet the requirements of ceramic forming, has high strength and good wear resistance, and the service life of one resin mold can reach tens of thousands of times. Therefore, the cost is reduced, the product forming quality is improved, and the method has important environmental protection significance. However, in the case of a microcellular resin mold, high pressure gas is required to assist the mold release, which requires the arrangement of vent pipes inside the mold, which are implanted in a pre-designed distribution inside the mold. Therefore, the manufacturing difficulty of the die is increased, the process is complex, time and labor are consumed, and the die cost is increased. Therefore, a simple and easy-to-operate tube arrangement technology is urgently needed in actual production.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the mold which is formed based on the microporous resin material and is convenient to exhaust is provided, the ceramic molding requirement is met, meanwhile, the ventilation and demolding are convenient, the mold manufacturing process is simple, the production cost is effectively reduced, and the production efficiency is improved.

The technical scheme adopted by the invention for solving the technical problems is as follows: a mould of being convenient for exhaust based on micropore resin material forms, includes the mould body, its characterized in that: the die body comprises an outer die and an inner die which is sleeved and fixed in the outer die, ventilation grooves are distributed on the outer surface of the inner die or the inner surface of the outer die, and an air inlet through hole is formed in the center of the bottom of the outer die and communicated with the ventilation grooves; the inner mold is made of a microporous resin material.

Furthermore, the ventilating grooves are longitudinally distributed and are converged at the air inlet through hole.

Furthermore, a sealing ring is arranged at the interface of the inner die and the outer die.

Furthermore, the outer surface of the inner mold except the sealing ring is sealed by a sealant.

Further, the inner die and the outer die are fastened together through bolts.

Further, the outer die is made of metal or hard plastic.

Compared with the prior art, the invention has the beneficial effects that:

1. the mold body is divided into an outer mold and an inner mold which is sleeved and fixed in the outer mold, the inner mold is made of microporous resin materials, the outer surface of the inner mold or the inner surface of the outer mold is provided with ventilation grooves which are uniformly distributed, the center of the bottom of the outer mold is provided with the air inlet through hole, and the air inlet through hole is communicated with the ventilation grooves.

2. The ventilating grooves are longitudinally distributed and are converged at the air inlet through hole, and high-pressure air entering from the air inlet through hole can be uniformly distributed outside the inner die and then is diffused to the blank body through the micropores, so that the uniform demoulding of the blank body can be ensured, and the demoulding effect is improved.

3. According to the invention, the sealing ring is arranged at the interface of the inner mold and the outer mold, and the hole sealing treatment is carried out on the part of the microporous resin non-working surface outside the sealing ring, so that the air leakage of the contact part of the inner mold and the outer mold and the part of the inner mold non-working surface can be avoided, and the demolding effect is ensured.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

fig. 3 is a schematic cross-sectional structure of the present invention.

Labeled as:

1. an outer mold; 2. an inner mold; 3. a green body; 4. a vent groove; 5. an air inlet through hole; 6. a seal ring; 7. and (4) bolts.

Detailed Description

The invention will be further described with reference to the following examples:

as shown in fig. 1-3, the invention provides a mold formed based on a microporous resin material and facilitating exhaust, which comprises a mold body, wherein the mold body comprises an outer mold 1 and an inner mold 2 sleeved and fixed inside the outer mold 1, ventilation grooves 4 are uniformly distributed on the outer surface of the inner mold 2 or the inner surface of the outer mold 1, an air inlet through hole 5 is formed in the center of the bottom of the outer mold 1, and the air inlet through hole 5 is communicated with the ventilation grooves 4. The venting grooves 4 are distributed longitudinally in the direction of demolding and converge at the air inlet through-hole 5. The inner mold 2 is placed above the inner part of the outer mold 1, a sealing ring 6 is arranged at the interface of the inner mold and the outer mold, the outer surface of the inner mold 2 outside the sealing ring 6 is sealed by a hole sealing agent, and then the inner mold 2 and the outer mold 1 are fastened together through a bolt 7. The inner mold 2 is made of a microporous resin material, and the outer mold 1 is made of a hard material such as metal or hard plastic.

The ventilation grooves 4 in the embodiment are arranged on the outer surface of the inner die 2, the ventilation grooves 4 are longitudinally distributed along the demoulding direction by taking the bottom of the inner die 2 as the center, and the ventilation grooves 4 are converged at the bottom of the inner die 2 and communicated with the air inlet through hole 5.

The working principle and the specific implementation mode of the invention are as follows:

as shown in fig. 3, in the production process of ceramic products, after roll forming, the blank 3 is attached to the inner surface of the inner mold 2, during demolding, the air inlet through hole 5 at the bottom of the outer mold 1 is communicated with a compressor, so that high-pressure air is input into the mold through the air inlet through hole 5, the high-pressure air flows in the air vent groove 4 and enters the inner mold 2 made of microporous resin materials, then the high-pressure air is flushed out from the inner mold 2 through uniformly distributed micropores, and the blank 3 is supported under the action of air pressure to be separated from the inner mold 2, so that the blank 3 can be smoothly taken off from the mold. Because the ventilation grooves 4 are uniformly distributed in the die body and the inner die 2 made of the microporous resin material has good ventilation performance, good demoulding effect is ensured. The sealing ring 6 and the outer surface hole sealing arrangement of the inner mold 2 outside the sealing ring 6 avoid the air leakage condition of the interface of the inner mold 2 and the outer mold 1 and the non-working surface of the inner mold 2, and are beneficial to improving the demolding effect.

According to the invention, the ventilation grooves 4 are formed on the outer surface of the inner mold 2 or the inner surface of the outer mold 1, after the inner mold 2 and the outer mold 1 are fastened and fixed, a ventilation pipeline is arranged in the mold body, the inner mold 2 and the outer mold 1 can be formed at one time through pouring, subsequent processing is not needed, the manufacturing process is simple and convenient, the mold cost is greatly reduced and the production efficiency is improved on the basis of meeting the ceramic forming requirement by using a microporous resin material.

The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims

1. A mould of being convenient for exhaust based on micropore resin material forms, includes the mould body, its characterized in that: the die body comprises an outer die and an inner die which is sleeved and fixed in the outer die, ventilation grooves are distributed on the outer surface of the inner die or the inner surface of the outer die, and an air inlet through hole is formed in the center of the bottom of the outer die and communicated with the ventilation grooves; the inner mold is made of a microporous resin material.

2. The mold for facilitating air exhaustion formed based on a microcellular resin material according to claim 1, wherein: the ventilating grooves are longitudinally distributed and are converged at the air inlet through hole.

3. The mold for facilitating air exhaustion formed based on a microcellular resin material according to claim 2, wherein: and a sealing ring is arranged at the interface of the inner die and the outer die.

4. The mold for facilitating air exhaustion formed based on a microcellular resin material according to claim 3, wherein: and the outer surface of the inner mold except the sealing ring is sealed by a hole sealing agent.

5. The mold for facilitating air exhaustion formed based on the microcellular resin material according to claim 4, wherein: the inner die and the outer die are fastened together through bolts.

6. The mold for facilitating air exhaustion formed based on the microcellular resin material according to any one of claims 1 to 5, wherein: the outer die is made of metal or hard plastic.