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US 6,537,053 B1Granted
Modular molding system, and modules for use therewith
AssigneeThe Plastic Moldings Corporation
InventorHarold C. Watkins
Life of this patent
Estimating the term…
Abstract
A modular molding system having: an upper frame assembly configured for receiving a cavity module therein; a lower frame assembly configured for receiving a core module therein, the lower frame assembly including a two-stage master ejector system; a cavity module positioned within the upper frame assembly; and a core module positioned within the lower frame assembly, the core module including a two-stage ejector system having a plurality of ejection elements associated therewith; wherein the core and cavity modules together define a molding cavity for molding a workpiece therein, and wherein the master ejector system is operable to drive the ejection elements of the core module.
Claims15
A modular molding system, comprising:
- (a) an upper frame assembly configured for receiving a cavity module therein;
- (b) a lower frame assembly configured for receiving a core module therein, said lower frame assembly including a two-stage master ejector system for assisting in ejecting a workpiece in two stages, said master ejector system comprising first and second master ejector plates, said first master ejector plate including an access opening therethrough;
- (c) a cavity module positioned within said upper frame assembly;
- and
- (d) a core module positioned within said lower frame assembly, said core module including a two-stage ejector system having a plurality of ejection elements associated therewith, said two-stage ejector system configured for assisting in ejecting a workpiece in two stages, wherein said ejector system of said core module comprises a module ejector plate having a maximum dimension less than a maximum dimension of said access opening and configured to be inserted through said access opening for attachment to said second master ejector plate;
- wherein said core and cavity modules together define a molding cavity for molding a workpiece therein, and further wherein said master ejector system is operable to drive said ejection elements of said core module.
3 more elements
A modular molding system, comprising:
- (a) an upper frame assembly configured for receiving a cavity module therein;
- (b) a lower frame assembly configured for receiving a core module therein, said lower frame assembly including a two-stage master ejector system for assisting in ejecting a workpiece in two stages, said master ejector system comprising first and second master ejector plates, said first master ejector plate including an access opening therethrough;
- (c) a cavity module positioned within said upper frame assembly;
- and
- (d) a core module positioned within said lower frame assembly, said core module including a two-stage ejector system having a plurality of ejection elements associated therewith, said two-stage ejector system configured for assisting in ejecting a workpiece in two stages, wherein said ejector system of said core module comprises first and second module ejector plates, said first module ejector plate having a dimension greater than a dimension of said access opening and said second module ejector plate having a maximum dimension less than a maximum dimension of said access opening, such that said first module ejector plate is configured to interfere with said access opening while said second module ejector plate is configured to be inserted through said access opening.
- wherein said core and cavity modules together define a molding cavity for molding a workpiece therein, and further wherein said master ejector system is operable to drive said ejection elements of said core module.
3 more elements
A modular molding system, comprising:
- (a) an upper frame assembly configured for receiving a cavity module therein;
- (b) a lower frame assembly configured for receiving a core module therein, said lower frame assembly including a two-stage master ejector system for assisting in ejecting a workpiece in two stages, said master ejector system comprising first and second master members, said first master member including an access opening therethrough;
- (c) a cavity module positioned within said upper frame assembly;
- (d) a core module positioned within said lower frame assembly, said core module including a two-stage ejector system for assisting in ejecting a workpiece in two stages, said ejector system of said core module comprising a module member and an ejection element, said module member having a maximum dimension less than a maximum dimension of said access opening, and said module member is configured to be inserted through said access opening for attachment to said second master member;
- and
- wherein said core and cavity modules together define a molding cavity for molding a workpiece therein, and wherein said master ejector system is operable to drive said ejection element of said core module.
3 more elements
A modular molding system, comprising:
- (a) an upper frame assembly configured for receiving a cavity module therein;
- (b) a lower frame assembly configured for receiving a core module therein, said lower frame assembly including a two-stage master ejector system for assisting in ejecting a workpiece in two stages, said master ejector system comprising first and second master members;
- (c) a cavity module positioned within said upper frame assembly;
- (d) a core module positioned within said lower frame assembly, said core and cavity modules together define a molding cavity for molding a workpiece therein, said first master member being located closer to said molding cavity than said second master member, said core module including a two-stage ejector system for assisting in ejecting a workpiece in two stages, said ejector system of said core module comprising a module member and an ejection element, said module member being provided with a fastening device for removably attaching said module member to said second master member, wherein said fastening device may be accessed to removably attach said module member to said second master member without disassembling said first or second master members;
- and
- wherein said master ejector system is operable to drive said ejection element.
3 more elements
Dependencies are inferred from the claim text.