JP2003236891A5 - - Google Patents

Description

Patent application title: Apparatus and method for producing porous body

[0001]
Field of the Invention
The present invention relates to an apparatus and method for producing a porous body, and more particularly to a production apparatus and method suitable for producing a porous body in which a plurality of pores are arranged in high density.

[0010]
Therefore, according to the present invention, the falling or deformation of the molding pin due to the pressure difference or temperature difference of the molding material in the cavity without the structure of the molding die becoming complicated, and the insufficient filling of the molding material between the molding pins It is an object of the present invention to provide an apparatus and method for producing a porous body capable of preventing the formation of pores of the porous body with high accuracy.

Claims (2)

A manufacturing apparatus of a porous body for producing by injection molding a molded article in which a molding material fluid layer for closing the opening of each pore is integrally formed on one side of the porous body in which a plurality of pores are formed parallel to each other. ,
A stationary mold having a subcavity corresponding to the molding material fluid bed;
A moving mold which forms a main cavity corresponding to the porous body between the fixed mold and the mold by moving backward in a direction away from the fixed mold;
By sliding through the movable mold, molding pins parallel to each other face the front end portion in the main cavity;
An injection device for filling a molding material into the sub-cavity;
A brake that controls the movement of the moving mold so that the moving mold, which moves backward in a direction away from the fixed mold by the filling pressure of the molding material, moves while applying pressure to the molding material in the main cavity Mechanism,
Equipped with
An apparatus for manufacturing a porous body, wherein a gate for injecting the molding material into the sub-cavity is provided in communication with the sub-cavity at a location facing the periphery of the molding pin group. When manufacturing a molded product in which a molding material fluid layer is integrally formed on one side of a porous body in which a plurality of pores penetrate in parallel with one another is closed by injection molding, it corresponds to the molding material fluid layer A movable mold having a sub-cavity, and a movable mold for forming a main cavity corresponding to the porous body between the fixed mold and the movable mold by moving backward in a direction away from the fixed mold; Using a mold apparatus having a mold pin and a mold pin, the tip end of which is parallel to each other and facing in the main cavity by slidably penetrating the mold;
  First, the movable mold is moved forward to the fixed mold side, and a molding material is filled in the sub-cavity without the main cavity being formed;
  Next, while moving the moving mold backward in a direction away from the fixed mold by the filling pressure of the molding material, the main mold is applied while applying pressure to the molding material in the cavity by the moving mold. Filling the molding material inside,
  Thereafter, the molding material is solidified in a state where pressure is applied to the molding material by the moving mold, and the method for manufacturing a porous body.