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US5580587: Mold changing device in injection molding machine
20 Claims, No Drawings
A rubber injection molding machine includes a mold rack, an injection position with lower and upper platens and an operator station. Rolling beams are mounted at opposite sides of the injection position and can be lifted and lowered. Between such beams is a mold carrier which can be moved in the rolling direction of the beams. The mold carrier grasps a clamping pin of a bottom half of the mold.
- 1. A vertical injection molding machine having a mold changing device, said machine comprising:an injection station having thereat lower and upper platens to hold therebetween a mold for an injection molding operation;an operator station at a first side of said injection station;a mold storage rack at a second side of said injection station opposite said operator station;a slide plate mounted on said lower platen for movement relative thereto in opposite directions back and forth between said injection station and said operator station during normal molding operations and for selective movement back and forth from said injection station toward said mold storage rack during a mold changing operation;rolling beams mounted on opposite sides of said slide plate for vertical movement between a lowered position, whereat a mold at said injection station is maintained lowered relative to said lower platen, and an upper position, whereat a mold at said injection station is lifted by said rolling beams away from said lower platen; anda mold carrier connected to said slide plate and movable therewith to, when said rolling beams are in said upper position, move a mold lifted by said rolling beams in a direction from said injection station toward said mold storage rack and to move a new mold in a reverse direction, with the molds being rollingly moved along said rolling beams.
U.S. Patent Documents
Foreign Patent Documents
|Document Number||Assignees||Inventors||Issue/Pub Date|
|DE3717944||SCHWERIN PLASTMASCHINEN||Jan 1988|
|DE3801032||KERMI GMBH||Jul 1989|
|DE3636090||EHRLINGER FORMHOLZTECHNIK GMBH||May 1990|
|DE3940127||SCHWERIN PLASTMASCHINEN||Jun 1990|
|DE4006975||SCHWERIN PLASTMASCHINEN||Oct 1990|