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公开(公告)号：US20240181739A1
公开(公告)日：2024-06-06
申请号：US18285619
申请日：2022-04-08
申请人： PulPac AB
发明人： Olle Högblom , Ove Larsson , Martin Ljungberg , Edward Guidotti , Björn Arlerot , Patrik Larsson
CPC分类号： B31F1/0077 , B30B1/16 , B30B11/005 , B31B50/006 , B31B50/102 , B31B50/59
摘要： A product forming unit for manufacturing non-flat cellulose products from an air-formed cellulose blank structure (2). The product forming unit includes a blank dry-forming module with a moveable forming wire, a toggle pressing module with a toggle press and a forming mold, and an electronic control system operatively connected to the forming wire and the toggle press. The blank dry-forming module is configured for air-forming the cellulose blank structure onto the forming wire. The toggle press includes a pressing member movably arranged in a pressing direction, a toggle-mechanism drivingly connected to the pressing member, and a pressing actuator arrangement drivingly connected to the toggle-mechanism. The forming mold includes a moveable first mold part attached to the pressing member and a second mold part. The electronic control system is configured for controlling operation of the pressing actuator arrangement for performing pressing operations, which involves driving the pressing member in the pressing direction by the toggle-mechanism, and thereby forming the non-flat cellulose product from the air-formed cellulose blank structure by pressing the first mold part against the second mold part. The electronic control system is configured for intermittently feeding the forming wire between subsequent pressing operations.
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公开(公告)号：US20240181740A1
公开(公告)日：2024-06-06
申请号：US18285623
申请日：2022-04-08
申请人： PuLPac Ab
发明人： Olle Högblom , Ove Larsson , Martin Ljungberg , Edward Guidotti , Björn Arlerot , Partik Larsson
IPC分类号： B31F1/00 , B27N1/00 , B27N3/00 , B27N3/04 , B27N3/18 , B27N5/00 , B30B1/10 , B30B9/28 , B30B15/30 , B31B50/00 , B31B50/10 , B31B50/59
CPC分类号： B31F1/0077 , B27N1/00 , B27N3/007 , B27N3/04 , B27N3/18 , B27N5/00 , B30B1/10 , B30B9/28 , B30B15/30 , B31B50/006 , B31B50/102 , B31B50/59
摘要： Method for dry-forming cellulose products from a cellulose blank structure in a product forming unit. The product forming unit includes a blank dry-forming module and a pressing module. The cellulose blank structure is air-formed in the blank dry-forming module onto a forming wire. The pressing module includes one or more forming molds for forming the cellulose products from the cellulose blank structure in a pressing operation. The method includes arranging the forming wire in a stationary mode during the pressing operation.
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3.发明公开公开(公告)号：US20230356494A1
公开(公告)日：2023-11-09
申请号：US17795795
申请日：2021-02-02
申请人： PulPac AB
发明人： Martin Ljungberg , Björn Arlerot
CPC分类号： B31D5/02 , B31F1/0077 , D21J3/00 , B29C43/003 , B29C43/10 , B29C43/36 , B29C43/52 , B29C33/22 , B31B50/592
摘要： A forming mould system (3) for forming a cellulose product (1) from an air-formed cellulose blank structure (2), where the forming mould system (3) comprises a first mould part (4a) and a second mould part (4b). The first mould part (4a) and the second mould part (4b) are configured for moving in relation to each other in a pressing direction (DP). The second mould part (4b) comprises a forming cavity section (5) and an inlet section (6), where the inlet section (6) is arranged in connection to the forming cavity section (5) and configured for facilitating displacement of the cellulose blank structure (2) into a forming cavity (5a) of the forming cavity section (5). The inlet section (6) comprises a transition surface (6a) defining an inlet opening (6b), and the inlet opening (6b) is having a tapered configuration towards the forming cavity (5a). The disclosure further relates to a method for forming a cellulose product (1) from an air-formed cellulose blank structure (2) in a forming mould system (3).
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