CN100551668C

CN100551668C - The mould-filling method of stock

Info

Publication number: CN100551668C
Application number: CNB2005100644902A
Authority: CN
Inventors: 陈法胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-19
Filing date: 2005-04-19
Publication date: 2009-10-21
Anticipated expiration: 2025-04-19
Also published as: CN1853902A

Abstract

The mould-filling method of stock provided by the present invention, it makes the die cavity that will be received in stock of the mould that is warming up to predetermined temperature, when this mould is positioned at die sinking position, cool off the surface of this die cavity with fluid, in order to reduce the temperature on this die cavity surface, and inserted with the stock that is about to desire to insert, even be positioned at the matched moulds position with this mould.

Description

The mould-filling method of stock

Technical field

The present invention is relevant with the polymer shaping process technology, particularly about a kind of mould-filling method of stock.

Background technology

In known polymer shaping processing technique field, carry out the difference of polymerisation in response to the characteristic of the macromolecule raw material of institute's moulding and its, promptly there is different processing molding methods to adapt to the required person of different macromolecule raw material respectively, particularly, in disclosed polymer shaping process technology, there is the quantitative stock of macromolecule raw material being made in advance suitable shape in system, again these stocks are placed mould, its suitable pressure and heat energy is provided, makes the macromolecule raw material that exists with the stock form see through polymerisation according to this and be the required given shape finished product of the moulding one-tenth of mould.

These technology contents, though the existing fact that is disclosed use exists in known technology, yet, the creator finds in disclosed conventional art, its method is also imperfect, and make the efficient of making to promote, trace it to its cause is to be because of in the technique known, the heating schedule of its mould is to be to treat can carry out after the stock mold filling is finished, and its purpose of the intensification of mould is to provide the temperature of heat energy to the macromolecule raw material reaction that is positioned at mould inside, known technology is treated the technology contents that can carry out after mold filling is finished, obviously make whole fabrication schedule rise to mould because of independent time must be provided, cooling process, certainly, the manufacturing efficient of its integral body promptly is restricted relatively, and can't be by suitable lifting.

Summary of the invention

Main purpose of the present invention is, a kind of mould-filling method of stock is provided, and it can make the heating schedule required time of mould in the polymer shaping fabrication schedule significantly reduce, and shortens the processing procedure required time according to this to improve the efficient of making.

Another object of the present invention is to, a kind of mould-filling method of stock is provided, it, is inserted stock in the die cavity of mould through being warming up under the proper temperature situation at mould, and the shape of guaranteeing stock is able to be kept and can not take place because of the effect of mold temperature to melt or distortion situation such as warpage.

For reaching above-mentioned purpose, the mould-filling method of stock provided by the present invention, it makes the die cavity that will be received in stock of the mould that is warming up to predetermined temperature, when this mould is positioned at die sinking position, cool off the surface of this die cavity with fluid, in order to reducing the temperature on this die cavity surface, and inserted, even be positioned at the matched moulds position with this mould with the stock that is about to desire to insert.

Below, lift a preferred embodiment of the present invention now and cooperate diagram to be described further.

Description of drawings

Fig. 1: the schematic flow sheet of one embodiment of the present invention.

The specific embodiment

According to Fig. 1, the mould-filling method of the stock that in one embodiment of the present invention, is provided, having comprised has following step:

A, use a multiple layers of molds 20, by stacked in regular turn up and down the forming of upper, middle and lower three

matrixs

21,22,23, it each other and can be subjected to the outside mold mechanism of suitably holding under the arm to drive and relatively move;

B, make respectively that this

matrix

21,22,23 splices each other, and this mould 20 is positioned on the one first matched moulds position, provide heat energy to make its temperature that has suitably be promoted to suitable degree simultaneously to this mould 20;

C, macromolecule raw material injected quantitatively from the outside with Jet forming machine be arranged on this, the stock mould chamber of 21,22 of middle level matrixs, and be subjected to moulding one-tenth first stock;

D, make that respectively this

matrix

21,22,23 is separated from one another, and make this mould be positioned on first die sinking position, and this first stock be attached to matrix 21 bottom side ends on this in the die cavity of under shed;

E, should in matrix 22 is traversing goes out, its traversing action can drive by suitable external impetus;

F, send via pipeline and impact die cavity surface on this time matrix 23 upside end faces, flow so that its surface temperature is slightly fallen in this die cavity is lip-deep in order to see through this cryogen with the fluid of low temperature;

G, take preformed second stock and place this time matrix 23 this fluid-cooled die cavity;

H, make respectively this upper and lower matrix butt about in the of 21,23, and make this mould 20 be positioned on the one second matched moulds position, at this moment, be positioned at the die cavity of matrix 21 downside end faces on this and the die cavity of this time matrix 23 upside end faces and promptly get the synthetic one shaping mould chamber of sealing that connects, and make this be attached to first stock on the matrix 21 on this, be placed into second stock in this time matrix 23 die cavitys, corresponding butt in this shaping mould chamber;

I, be positioned at the locational mould 20 of second matched moulds for this suitable clamping pressure and the required temperature of this stock reaction respectively are provided, making respectively, this stock is obtained enough heat energy and is reacted in this shaping mould chamber;

J, treat respectively the required reaction time of this stock through after, even respectively this upper and

lower matrix

21,23 is separated from one another, and make this mould 20 be positioned on one second die sinking position, the respectively reaction of this stock finished and made the finished product of required form.

Need in addition person system in this, in above-mentioned c step, the moulding of its first stock still can replace via other known polymer shaping process technologies again, as extruding, is also taken and to insert it for first stock that is configured as idiosome in advance in the outside; And, employed cryogen in this f step can select for use suitable fluid for use on making, as low-temperature carbon dioxide gas, low temperature nitrogen or water etc., allly be able to be scattered and disappeared in working environment and do not have a security concerns person, all belong to operable fluid; And, in this g step, this second stock is inserted the technology contents that corresponding die cavity relies on, also visual actual demand and changing as with artificial or by suitable facility, all belongs to feasible.

By above-mentioned step, the mould-filling method of stock provided by the present invention, its technical feature promptly is by reducing the method for the die cavity surface temperature that this second stock intends inserting, second stock is being inserted up to matched moulds not being subjected under the situation that external force formalized between finishing, can avoid making stock produce the distortion situation of warpage because of the too high influence of die cavity surface temperature, and influence its molded item quality, and because the present invention only gives low with regard to the temperature on die cavity surface, but not the temperature of mold integral is descended, therefore, the required time of temperature retrieval behind surface cooling can be shortened certainly, and there is not the influence of retardation fabrication schedule, for promoting the efficient that the macromolecule article are made, promoted effectively certainly compared to known technology contents.

And still need is proposed especially to illustrate be, when on industry, using with the mould-filling method of stock provided by the present invention, it is except that the processing procedure that can be directly be shaped to finished product with regard to single stock is used, prior promptly as the revealer of the above embodiments institute, it is to reduce local cooling's mode of die cavity surface temperature, use and to combine application with other known Process Technology of Polymer technology in the industry of reality, the processing procedure that mould has been heated up when the moulding as above-mentioned ejection formation etc., in other words, be allly to have aforesaid feature and promptly should belong to the present invention and can contain the scope that relates to, and should be not its restriction with the foregoing description.

Claims

1, a kind of mould-filling method of stock, it makes the die cavity that will be received in stock of the mould that is warming up to predetermined temperature, when this mould is positioned at die sinking position, cool off the surface of this die cavity with fluid, in order to reduce the temperature on this die cavity surface, and inserted with the stock that is about to desire to insert, even be positioned at the matched moulds position with this mould.

2, according to the mould-filling method of the described stock of claim 1, it is characterized in that: this fluid reduces the temperature of its contact surface in the mode of the contact of flowing in this die cavity surface.

3, according to the mould-filling method of the described stock of claim 2, it is characterized in that: this fluid is sprayed by fluid delivery pipeline.

4, according to the mould-filling method of the described stock of claim 1, it is characterized in that: this fluid is the gas of low temperature.

5, according to the mould-filling method of the described stock of claim 1, it is characterized in that: this fluid is a water.

6, according to the mould-filling method of the described stock of claim 1, it includes the following step:

A, use one have the multiple layers of molds of upper, middle and lower-ranking matrix at least;

B, this mould is positioned on the one first matched moulds position, and makes it have predetermined temperature;

C, with Jet forming machine macromolecule raw material is quantitatively injected be positioned on this, the stock mould chamber between the matrix of middle level, be shaped to first stock;

D, make respectively that this mould is positioned on first die sinking position;

E, should in matrix shift out;

F, be positioned at die cavity surface on the face of this time matrix upside with fluid cooling;

G, take preformed second stock and insert in the die cavity of this time matrix;

H, make up and down butt and being positioned on the one second matched moulds position of this upper and lower matrix, and the connect shaping mould chamber of a synthetic sealing of the die cavity that makes the die cavity of matrix lower side face on this and this time matrix upside face makes respectively this first, second stock correspondence in this shaping mould chamber join with it;

I, continue to provide heat energy to make the stock in this shaping mould chamber obtain required reaction temperature;

J, this mould is positioned on second die sinking position, and order respectively this upper and lower matrix be separated from each other, the respectively reaction of this stock finished and made the finished product of required form.