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US 7,537,445 B2Granted
Injection molding assembly having a product remover with a biasing member
AssigneeTrelleborg Sealing Solutions US, Inc.
InventorsRobert C. Lindsten, Glenn E. Nobis
Life of this patent
Estimating the term…
Abstract
An injection molding assembly having a mold cavity assembly, a stripping apparatus and a mold core assembly. These components are movably coupled together and configured to extract, remove or eject a molded part. The injection molding assembly also includes a biasing member or force transceiver to facilitate in the removal of the molded part from the mold core.
Claims22
A molding assembly comprising:
- a mold cavity assembly including a cavity wall defining a mold cavity;
- a product remover movably coupled to the mold cavity assembly;
- a mold core assembly movably coupled to the product remover, the mold core assembly including a mold core that is insertable into at least a portion of the mold cavity to at least partially define a space fillable by a flow of material to be solidified into a product;
- and
- a force transceiver configured to store at least a portion of energy associated with movement of the mold core away from the mold cavity wall, and configured to release at least part of the stored energy to facilitate removal of the product from the mold core.
2 more elements
A part fabrication apparatus comprising:
- a mold cavity assembly including a substantially cylindrical cavity wall defining a mold cavity;
- a part removal plate movably coupled to the mold cavity assembly by a member;
- a mold core assembly including a substantially cylindrical mold core, the mold core insertable through an opening in the part removal plate and insertable into at least a portion of the mold cavity so as to define a space fillable by a flow of material to be solidified into a part;
- a power source coupled to the mold core assembly and configured to urge the mold core assembly away from the mold cavity assembly during part removal;
- and
- a force transceiver configured to store at least a portion of energy associated with movement of the mold core away from the mold cavity wall, and configured to release at least a portion of the stored energy to facilitate removal of the part from the mold core.
3 more elements
An injection molding assembly comprising:
- a mold cavity assembly including a base, a substantially cylindrical mold cavity wall, and a holder having a flanged end, the mold cavity wall defining a mold cavity;
- a stripping rod movably coupled to the base of the mold cavity assembly and having a first flanged end and second flanged end, the first flanged end of the stripping rod configured to repetitively compress and decompress a spring mechanism disposed between the first flanged end of the stripping rod and the flanged end of the holder;
- a core assembly movably connected to the mold cavity assembly, the core assembly having a base, a substantially cylindrical mold core attached to the base, an outer diameter of the mold core being less than an inner diameter of the mold cavity wall, the mold cavity wall configured to receive at least a portion of the mold core so as to define a space fillable by a flow of material to be solidified into a product;
- a stripping plate movably coupled to the mold cavity assembly and disposed between the mold cavity assembly and the core assembly, the stripping plate including a first opening configured to receive the cylindrical mold core, and a second opening configured to block the second flanged end of the stripping rod.
1 more element
Dependencies are inferred from the claim text.