Mold for hot stamping

Abstract

A mold for hot stamping is disclosed. The mold may include: a base plate configured to receive and exhaust coolant; at least one appearance block mounted at a surface of the base plate and positioned along a shape of a product, the appearance block having a mounting space therein; and an insert block inserted in the mounting space so as to be fixed to the appearance block and mounted at a surface of the base plate. The insert block is provided with a plurality of passages in an exterior surface thereof for circulating coolant, wherein the plurality of passages are in fluidly communication with the base plate.

What is claimed is: 
     
         1 . A mold for hot stamping, comprising:
 a base plate configured to receive and exhaust coolant;   at least one appearance block mounted at a top outer surface of the base plate, the at least one appearance block positioned along a shape of a product and having a mounting space disposed therein; and   an insert block inserted in the mounting space, the insert block being fixed to the appearance block, and being mounted at the outer surface of the base plate,   wherein the insert block is provided with a plurality of passages at an exterior circumference thereof, the passages being configured for circulating the coolant, and   wherein the plurality of passages are in fluid communication with the base plate.   
     
     
         2 . The mold of  claim 1 , wherein the appearance block has a shape substantially the same as the shape of the product, and the mounting space has a shape similar to the shape of the appearance block. 
     
     
         3 . The mold of  claim 2 , wherein the insert block comprises:
 a body portion having a shape that is the same as the shape of the mounting space, the body portion being inserted in the mounting space and being fixed to the appearance block;   a pair of storing recesses disposed in opposing sides of a lower portion of the body portion, the recesses each along a length direction of the body portion; and   a plurality of coolant flowing grooves, each coolant flowing groove extending between the pair of storing recesses, and being formed in an exterior surface of the body portion along a width direction thereof.   
     
     
         4 . The mold of  claim 3 , wherein outer edges of the body portion are rounded. 
     
     
         5 . The mold of  claim 3 , wherein the plurality of coolant flowing grooves are disposed spaced apart from each other along the length direction of the body portion. 
     
     
         6 . The mold of  claim 3 , wherein the body portion has a coolant inflow hole and a coolant exhaust hole formed therein, the coolant inflow hole and a coolant exhaust hole being in fluidly communication with the base plate. 
     
     
         7 . The mold of  claim 6 , wherein each of the pair of storing recesses are connected to the coolant inflow hole and the coolant exhaust hole respectively. 
     
     
         8 . The mold of  claim 1 , wherein the base plate has a pair of first coolant chambers for storing coolant, the pair of first coolant chambers disposed at a bottom surface of the base plate along a length direction thereof. 
     
     
         9 . The mold of  claim 8 , wherein the base plate further has a pair of second coolant chambers disposed at the bottom surface of the base plate, and each of the second coolant chambers are in fluid communication with a corresponding first coolant chamber. 
     
     
         10 . The mold of  claim 8 , wherein the base plate further has a seal cover mounted at the bottom surface, the seal cover corresponding to each of the first coolant chambers. 
     
     
         11 . The mold of  claim 1 , wherein the insert block is inserted in the mounting space of the appearance block and is fixed to the appearance block by welding.