2results about How to "High molding density" patented technology

The present application relates to a kind of pressing mould for large aperture band inverted cone explosive grain, including bottom punch, the bottom of the bottom punch is provided with ejector rod, the bottom punch is installed at the top end of ejector rod, the outside of the ejector rod is provided with limit sleeve, the top of the limit sleeve is provided with forming die sleeve, the middle part of the forming die sleeve is provided with forming cavity, and the forming cavity is used to press and form the grain workpiece, the inside of the forming cavity is provided with top punch for material pressing, and material is pressed and formed inside forming cavity by top punch and bottom punch, when pressing, the top of top punch is driven by driving force, and the top of the forming die sleeve can be installed with demoulding sleeve;It is difficult to eject for the grain column with conical structure in the prior art by using reverse ejecting mode, it is difficult to assemble due to the large size of the mould, and the grain column is easily damaged by sudden drop and collision with punch.