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US 2026/0014749 A1Published application
Extrusion film-forming apparatus
AssigneeSumitomo Heavy Industries Modern, Ltd.
InventorKatsuyuki NAKANO
Life of this patent
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Abstract
An extrusion film-forming apparatus includes: a die that extrudes a molding material from a slit-shaped extrusion outlet; a die lip drive mechanism that changes a slit width of the extrusion outlet; and a control device that controls the die lip drive mechanism, in which during the extrusion of the molding material, the control device controls the die lip drive mechanism to temporarily decrease the slit width of the extrusion outlet for cutting the extruded molding material.
Claims12
An extrusion film-forming apparatus comprising:
- a die that extrudes a molding material from a slit-shaped extrusion outlet;
- a die lip drive mechanism that changes a slit width of the extrusion outlet;
- and
- a control device that controls the die lip drive mechanism,
- wherein during the extrusion of the molding material, the control device controls the die lip drive mechanism to temporarily decrease the slit width of the extrusion outlet for cutting the extruded molding material.
2 more elements
Dependencies are inferred from the claim text.