초록 ▼

An injection molding machine includes a stationary platen having a first mold half, at least one movable platen having a second mold half for forming a mold with the first mold half, tie bars for guiding the movable platen relative the stationary platen, and an injection unit for injecting molten re

An injection molding machine includes a stationary platen having a first mold half, at least one movable platen having a second mold half for forming a mold with the first mold half, tie bars for guiding the movable platen relative the stationary platen, and an injection unit for injecting molten resin into the mold. For at least one of the stationary and movable platen, a force is generated during clamping having a first direction. The at least one stationary and movable platens includes a first wall having edges and a central area and at least first and second sides, wherein the first side is adapted to be positioned nearest the clamping operation. The platen further includes a second wall spaced from and substantially parallel to the first wall, wherein the first and second walls extend substantially transverse to the first direction of the force. An intermediate support structure is positioned between the walls and is used to direct the force from the edges of the first wall toward the central area of the first wall for substantially preventing non-uniform deflection of the first wall along the first side. A related process for preventing flash formation is also disclosed.

대표청구항 ▼

[ What is claimed is:] [1.] A method for distributing forces within a platen having two parallel walls spaced apart by an intermediate support structure, which comprises:providing a mold platen having two walls spaced from each other, with a first of said walls being on the mold side and a second of

[ What is claimed is:] [1.] A method for distributing forces within a platen having two parallel walls spaced apart by an intermediate support structure, which comprises:providing a mold platen having two walls spaced from each other, with a first of said walls being on the mold side and a second of said walls being spaced from and parallel to said first wall, wherein each of said two walls have edges and a central area;generating a force against at least one of said walls in a first direction, wherein said walls extend substantially transverse to said first direction; anddirecting said force from one of said walls solely towards the other of said walls from the central area of one of said walls towards the edges of the other of said walls via an intermediate support structure positioned between and connected to both of said walls, thereby substantially preventing deflection of said first wall.