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Mold device

A mold and parting technology, applied in the direction of forming tools, manufacturing tools, material forming presses, etc., can solve problems such as contact, inability to make cut surfaces, inability to form cavities, etc.

Active Publication Date: 2017-07-28
KOBAYASHI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once the powder adheres to the cutting surface, when the mold parting is advanced to form the next powder compact, there is a problem that the cutting surface cannot be brought into contact and a cavity with the desired shape cannot be formed.

Method used

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Examples

Experimental program
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Embodiment Construction

[0025] Such as figure 1 As shown, a mold device 1 as an embodiment of the present invention includes a die base 2 composed of a donut-shaped disk and three split molds 4a, 4b, 4c. Die base 2 is equipped with through hole 17 (referring to figure 2 and image 3 ), the three split molds 4a, 4b, 4c abut against each other to form the cavity 3. The mold base 2 includes guide grooves 5 a , 5 b , and 5 c radially provided from the through holes 17 at equal intervals. The split molds 4a, 4b and 4c are driven by the sliders 6a, 6b and 6c respectively connected to the rear ends of the split molds 4a, 4b and 4c (on the opposite side to the cavity 3), along the guide grooves 5a, 5b and 5c Can advance and retreat freely.

[0026] In order to express the three symbols a, b, and c in a simple manner, descriptions of "i", "i+" and "i-" are appropriately used. When i=a, "i+" represents "b", when i=b, "i+" represents "c", and when i=c, "i+" represents "a". Meanwhile, "i-" indicates "c" w...

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PUM

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Abstract

The present invention provides a mold device that can reliably form a cavity having a desired shape by removing powder adhering to a cut surface. The parting molds 4i that are driven forward and backward by the slider (6i) (i=a, b, c) abut against each other to form a cavity (3). The punch (7a) and the punch (7b) are inserted into the cavity (3) up and down. Cutting surfaces (11j) (j=a, b) abutting against other split molds are formed on the split mold (4i). A gas passage (16j) is formed on the parting mold (4i), and the gas passage (16j) is continuous with the gas injection port (12j) which ejects gas from the cut surface (11j).

Description

technical field [0001] The present invention relates to a mold device used for powder molding of metals, ceramics, and the like. Background technique [0002] Conventionally, as a mold device used for powder molding of metals, ceramics, etc., a device comprising a mold having a cavity and upper and lower punches inserted vertically into the cavity has been used. In the above-mentioned mold device, the cavity of the mold is filled with powder of metal, ceramics, etc., and the powder is compressed by the punch inserted into the cavity of the mold from the upper and lower sides of the mold to perform powder molding. [0003] At this time, depending on the shape of the powder compact to be formed, it may be necessary to divide the mold into two or more. Each of the divided molds has a cut surface extending in the moving direction of the punch, and is provided so as to be able to move forward and backward freely in the direction in which the cavity is formed. [0004] For examp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B11/02B22F3/035B21D37/00B21D37/02
CPCB30B11/007B30B15/0082B30B15/022B29C43/32B29C2043/3233B22F3/03B28B7/386
Inventor 伊藤清光
Owner KOBAYASHI IND