Device and method for manufacturing plastic containers
AssigneeKocher-Plastik Maschinenbau GmbH
InventorMichael SCHNELL
Life of this patent
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Abstract
A device for producing plastic containers (10) by means of a molding, filling and sealing process is disclosed, at least consisting of a molding device (16) having individual molding tools (18), which can be moved repeatedly relative to one another from an open receiving position into a molding sealing position, and an extrusion unit (12), which can be used to insert at least one extruded plastic hose (14) into the open receiving position of the molding tools (18), which is characterized in that a traversing unit (20) can be used to move the extrusion unit (12) in conjunction with each extruded plastic hose (14) in opposite directions with respect to the molding device (16), which is stationary in every position of the molding tools (18).
Claims10
A device for producing plastic containers (10) by means of a molding, filling and sealing process, at least consisting of a molding device (16) having individual molding tools (18), which can be moved repeatedly relative to one another from an open receiving position into a molding sealing position, and an extrusion unit (12), which can be used to insert at least one extruded plastic hose (14) into the open receiving position of the molding tools (18), characterized in that a traversing unit (20) can be used to move the extrusion unit (12) in conjunction with each extruded plastic hose (14) in opposite directions with respect to the molding device (16), which is stationary in every position of the molding tools (18).
A method of manufacturing plastic containers (10) comprising at least the method steps outlined below:
- continuous extrusion of at least one vertically oriented plastic hose (14) by means of an extrusion unit (12), which can be moved vertically up and down, in the direction of a respective mounting space (22) of a stationary molding tool (18);
- wherein
- i. moving the extrusion unit (12) in the direction of the opened molding tool (18) along a distance substantially equal to the total height of a finished plastic container (10) for bringing a part of the respective continuously extruded hose (14) into a molding position in the respective receiving space (22) of the molding tool (18);
- ii. molding the respective part of the continuously extruded hose (14) and sealing it while forming the respective plastic container (10) by actuating the molding tool (18) and simultaneously moving the lowered extrusion unit (12) in the opposite direction while increasing the axial distance to the molding tool (18);
- whereby at least one plastic container chain (74) is continuously produced by passing through the process steps i. and ii. at least twice;
- and
- separating each plastic container (10) from the plastic container (10) upstream in the plastic container chain (74).
Dependencies are inferred from the claim text.