Powder molding apparatus

Abstract

A powder molding apparatus comprises a mold comprising a die having a powder molding space and upper and lower punch units, and a compression driving mechanism for performing compression molding by driving the upper and lower punch units independently, wherein molded articles formed by the compression molding are held by engaging lower first and second punches serving as a formed article holding mechanism at the time of transporting the molded articles. Thus, the molded articles can be prevented from falling or shifting while being transported between stages, thereby providing a powder molding apparatus capable of high speeds.

Description

[0001] This case is a divisional application of an invention patent application with an application date of December 4, 2001, an application number of 01142985.2, and a title of "powder supply device and its powder molding device". technical field [0002] The present invention relates to a powder molding device for pressing and molding powder materials such as ceramics, food, and medicine through a metal mold composed of a die and upper and lower punch assemblies. Background technique [0003] As such a powder molding device, there is, for example, a proposal in Patent Publication No. 2695757. Such a powder molding apparatus conveys a rotary table on which a plurality of molds are arranged, in order of a powder supply unit, a compression molding unit, and a product take-out unit by means of cam followers and guide rails. With such an apparatus, continuous production of molded objects is possible and productivity can be improved. [0004] In addition, in the above-mentioned...

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Problems solved by technology

Therefore, the design of the metal mold must conform to the guide rail, and there is a problem that the degree of freedom of the forming process is poor.

[0008] In the clamping mechanism of the above-mentioned conventional metal mold, when the pressure driving direction and the clamping direction are taken as the same direction, the following undesirable phenomena often occur. For example, in the demoulding process after pressurization, when When it is difficult to release the molded product from the metal mold, the clamping part of the metal mold will loosen, and the mold cannot be released, or the molded product will be damaged during the mold release, etc.

[0009] In addition, the structure in which the upper and lower molds are transported after being fixed on the same substrate is likely to become a bulky structure in which the upper and lower molds are conveyed integrally.

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