公开(公告)号：US20220176598A1

公开(公告)日：2022-06-09

申请号：US17604887

申请日：2020-05-14

申请人： PulPac AB

发明人： Olle Högblom ,  Ove Larsson ,  Linus Larsson ,  Edward Guidotti

IPC分类号： B29C43/08 ,  B31D5/02 ,  B31B50/59 ,  B29C43/52 ,  B29C43/46

摘要： A method is provided for producing discrete three-dimensional cellulose products from an air-formed cellulose blank structure in a rotary forming mould system. The method includes providing an air-formed cellulose blank structure, wherein the cellulose blank structure is air-formed from cellulose fibres; transporting the air-formed cellulose blank structure to a the rotary forming mould system; feeding the air-formed cellulose blank structure to a position between a first mould part and a second mould part, and heating the air-formed cellulose blank structure; forming the three-dimensional cellulose products from the air-formed cellulose blank structure in the rotary forming mould system, by pressing the heated air-formed cellulose blank structure with a forming pressure.

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

IPC分类号： B31F1/00 ,  B30B1/16 ,  B30B11/00 ,  B31B50/00 ,  B31B50/10 ,  B31B50/59

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.

公开(公告)号：US20240255422A1

公开(公告)日：2024-08-01

申请号：US18565320

申请日：2022-06-08

申请人： PulPac AB

发明人： Olle Högblom

IPC分类号： G01N21/3577 ,  B01L3/00 ,  G01J5/00 ,  G16C20/20

CPC分类号： G01N21/3577 ,  B01L3/5023 ,  G01J5/0037 ,  G16C20/20 ,  B01L2300/0663 ,  B01L2300/126

摘要： A method for detecting a liquid composition applied onto a cellulose blank structure, with a detection system. The detection system forms part of a cellulose product forming unit for forming cellulose products from the cellulose blank structure. The detection system includes a detection unit connected to a control unit. The method includes: providing the cellulose blank structure and feeding the cellulose blank structure in a feeding direction, where the cellulose blank structure moves through an application area and a detection area, the application area being arranged upstream the detection area; applying the liquid composition onto the cellulose blank structure in the application area; detecting the applied liquid composition in the detection area with the detection unit; analysing a detection result formed by the detection by the control unit, thereby forming an analysis result; and initiating a control action by the control unit upon detection of an analysis result deviating from a pre-determined analysis result.

公开(公告)号：US20230321866A1

公开(公告)日：2023-10-12

申请号：US18041940

申请日：2021-08-20

申请人： PulPac AB

发明人： Ove Larsson ,  Olle Högblom

IPC分类号： B27N5/02 ,  B27N3/20 ,  B27N1/00 ,  B27N3/04

CPC分类号： B27N5/02 ,  B27N3/203 ,  B27N1/00 ,  B27N3/04

摘要： A multi-cavity forming mould system for forming a plurality of discrete three-dimensional cellulose products from an air-formed cellulose blank structure. The forming mould system includes a first mould part and a second mould part arranged for cooperating with each other during forming of the cellulose products. The first mould part includes a plurality of first forming elements and the second mould part comprises a plurality of corresponding second forming elements movably arranged in relation to a base structure of the second mould part. The forming mould system is configured for establishing a plurality of forming cavities for the cellulose blank structure between each first forming element and corresponding second forming element during formation of the cellulose products. Each second forming element is arranged for interacting with a pressure member arranged in the base structure, where the pressure member is configured for establishing a forming pressure in each forming cavity onto the cellulose blank structure during formation of the cellulose products.

公开(公告)号：US20240183112A1

公开(公告)日：2024-06-06

申请号：US18285461

申请日：2021-04-15

申请人： PulPac AB

发明人： Ove Larsson ,  Olle Högblom ,  Martin Ljungberg

IPC分类号： D21J5/00 ,  B65H23/188

CPC分类号： D21J5/00 ,  B65H23/1882 ,  B65H2301/543 ,  B65H2701/177 ,  B65H2801/84

摘要： A method for manufacturing non-flat cellulose products from an air-formed cellulose blank structure in a product forming unit. The product forming unit includes a buffering module and a pressing module including one or more forming molds. The method includes providing the cellulose blank structure and feeding the cellulose blank structure to the buffering module; buffering the cellulose blank structure in the buffering module, and feeding the cellulose blank structure from the buffering module to the pressing module; forming cellulose products from the cellulose blank structure in the one or more forming molds by heating the cellulose blank structure to a forming temperature, and pressing the cellulose blank structure with a forming pressure. The cellulose blank structure is continuously fed to the buffering module in a first feeding direction, and intermittently fed from the buffering module in a second feeding direction, wherein the second feeding direction differs from the first feeding direction.

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.

公开(公告)号：US20240075676A1

公开(公告)日：2024-03-07

申请号：US18272464

申请日：2022-01-05

申请人： PulPac AB

发明人： Ove Larsson ,  Edward Guidotti ,  Olle Högblom

IPC分类号： B29C51/08 ,  B29C51/00 ,  B29C51/22

CPC分类号： B29C51/082 ,  B29C51/002 ,  B29C51/22 ,  B29K2001/00

摘要： A method for forming cellulose products in a mould system from an air-formed cellulose blank structure, where the forming mould system comprises a first mould part and a second mould part. The method comprises the steps: providing the cellulose blank structure, and defining one or more product sections and a residual section; compressing at least a portion of the residual section to a first degree of compression higher than a degree of compression of the one or more product sections; feeding the cellulose blank structure in a feeding direction to a forming position in the forming mould system, where in the forming position each product section is arranged between a corresponding first mould part and second mould part; forming the cellulose products from the cellulose blank structure between the first mould part and the second mould part by heating the cellulose blank structure and pressing the cellulose blank structure.