IP Library › Granted Patent US 12661842
Granted Patent B2
US 12661842 · App. 18/246,385 · Granted Jun 23, 2026

Method, system, and blow molding machine for blow molding a container

Inventor: Stephan Urabl (Höchst, AT)
Assignee: ALPLA Werke Alwin Lehner GmbH & Co. KG
B29C49/24B29C49/071B29C49/42073B29C2049/2404B29C2049/2443B29C2049/2464B29L2031/7158
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Quick Facts
Patent No.
US 12661842
App. No.
18/246,385
Granted
Jun 23, 2026
Kind
B2
Abstract

A method for blow molding a container having a fiber-based shell ( 20 ) is disclosed. The method comprises the steps of providing a fiber-based shell ( 20 ) introducing a preform ( 30 ) into the fiber-based shell ( 20 ) in order to produce a semi-finished product ( 60 ) gripping the semi-finished product ( 60 ) by means of a gripper ( 40 ) transferring the semi-finished product ( 60 ) into a blow molding tool ( 50 ) and blowing the container. The gripper ( 40 ) presses an inner wall ( 21 ) of the fiber-based shell ( 20 ) onto an outer surface ( 31 ) of the preform ( 30 ).

Claims (11)

1 . A system composed of a gripper ( 40 ) for transferring a semi-finished product into a blow molding tool and a head plate ( 51 ) of the blow molding tool ( 50 ), wherein the gripper ( 40 ) has a first gripping jaw ( 43 ) with a height (H) and the head plate ( 51 ) has a recess with a depth that equals the height (H) of the first gripping jaw ( 43 ) or has a projection ( 52 ) with a height that equals the height (H) of the first gripping jaw ( 43 ) to form a planar support surface.

2 . The system according to claim 1 , wherein the recess has an outer contour which substantially corresponds to an outer contour of the first gripping jaw ( 43 ).

3 . The system according to claim 1 , wherein the gripper ( 40 ) has a second gripping jaw ( 44 ), which is spaced apart from the first gripping jaw ( 43 ) in such a way that a support ring of the semi-finished product is introducible between the first gripping jaw ( 43 ) and the second gripping jaw ( 44 ).

4 . The system according to claim 1 , wherein the gripper ( 40 ) has a first member ( 41 ) and a second member ( 42 ), the first gripping jaw is arranged on the first member and another first gripping jaw ( 43 ) is arranged on the second member.

5 . The system according to claim 4 , wherein one second gripping jaw ( 44 ) is arranged at least on one of the first and the second members ( 41 , 42 ).

6 . The system according to claim 1 , wherein the first gripping jaw ( 43 ) has a gripping surface ( 431 ) which extends along a circular ring over an angle of at least 30°.

7 . The system according to claim 3 , wherein the second gripping jaw ( 44 ) has a gripping surface ( 441 ) which extends along a circular ring over an angle of at least 30°.

8 . The system according to claim 3 , wherein the first gripping jaw has a first gripping surface and the second gripping jaw has a second gripping surface, the first gripping surface ( 431 ) and the second gripping surface ( 441 ) are offset relative to one another in a radial direction.

9 . The system according to claim 5 , wherein the second gripping jaw ( 44 ) and another second gripping jaw are arranged on the first and the second members ( 41 , 42 ), respectively.

10 . The system according to claim 8 , wherein the first gripping surface ( 431 ) and the second gripping surface ( 441 ) are offset relative to one another in a radial direction by a wall thickness (W) of a fiber-based shell of a fiber-based container to be gripped.

11 . A blow molding machine comprising a system according to claim 1 .