Press die

Abstract

A press die comprises an upper die and a lower die each including a die main body; at least one first guide post projected on one of the die main bodies of the upper die and the lower die; and a first product pressing member mounted on the one of the die main bodies so as to be slidable along a middle portion of the first guide post, at least one guide through hole through which a middle portion of the first guide post penetrates being formed in the first product pressing member. The die main bodies of both the upper die and the lower die and the first product pressing member undergo an alignment for each other through the first guide post by inserting a tip portion of the first guide post into a first guide hole formed on the other one of the die main bodies of the upper die and the lower die.

What is claimed is:  
     
         1 . A press die comprising: 
 an upper die and a lower die each including a die main body;    at least one first guide post projected on one of the die main bodies of the upper die and the lower die; and    a first product pressing member mounted on the one of the die main bodies so as to be slidable along a middle portion of the first guide post, at least one guide through hole through which a middle portion of the first guide post penetrates being formed in the first product pressing member;    the die main bodies of both the upper die and the lower die and the first product pressing member undergoing an alignment for each other through the first guide post by inserting a tip portion of the first guide post into a first guide hole formed on the other one of the die main bodies of the upper die and the lower die.    
     
     
         2 . A press die according to  claim 1  wherein the first guide post is formed such that a diameter of the tip portion which is to be inserted into the first guide hole is smaller than a diameter of the middle portion which penetrates through the guide through hole of the first product pressing member.  
     
     
         3 . A press die according to  claim 1  further comprising a bearing member fitted into the guide through hole of the first product pressing member on its molding surface side for slidably receiving the middle portion of the first guide post.  
     
     
         4 . A press die according to  claim 1  further comprising a bearing member fitted into the first guide hole of the other die main body for slidably receiving the tip portion of the first guide post.  
     
     
         5 . A press die according to  claim 1  further comprising: 
 at least one second guide post attached to at least one of the die main bodies of the upper die and the lower die from its molding surface side; and  
 at least one second product pressing member mounted to the die main body to which the second guide post is attached so as to be slidable along the second guide post, at least one second guide hole into which the second guide post is to be inserted being formed in the second product pressing member from its molding surface side.  
 
     
     
         6 . A press die according to  claim 5  further comprising a bearing member fitted into the second guide hole of the second product pressing member on its molding surface side for slidably receiving the second guide post.