US 12,151,409 B2
Double belt press comprising at least one pressing device
Franz Kager, Schwechat (AT)
Assigned to Berndorf Band GmbH, Berndorf (AT)
Appl. No. 17/786,660
Filed by Berndorf Band GmbH, Berndorf (AT)
PCT Filed Dec. 16, 2020, PCT No. PCT/AT2020/060468
§ 371(c)(1), (2) Date Jun. 17, 2022,
PCT Pub. No. WO2021/119701, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. A 51128/2019 (AT), filed on Dec. 19, 2019.
Prior Publication US 2023/0019655 A1, Jan. 19, 2023
Int. Cl. B29C 43/36 (2006.01); B29C 43/22 (2006.01); B29C 43/48 (2006.01); B30B 5/06 (2006.01); B30B 15/06 (2006.01)
CPC B29C 43/361 (2013.01) [B29C 43/228 (2013.01); B29C 43/48 (2013.01); B30B 5/06 (2013.01); B30B 15/064 (2013.01); B29C 2043/3613 (2013.01); B29C 2043/483 (2013.01)] 3 Claims
OG exemplary drawing
 
1. A double belt press having at least one press device, wherein the press device has at least one pressing plate and at least one counter-pressure element for the pressing plate,
wherein the at least one pressing plate and the at least one counter-pressure element are arranged so as to be spaced apart from one another,
wherein portions of a first endless and driven metal belt and of a second endless and driven metal belt are guided, opposite one another, through a press gap located between sides of the pressing plate facing one another and the plate-shaped counter-pressure element,
wherein the press device has at least one pressing stamp having a pressing surface, mounted so as to be movable in the direction of the counter-pressure element and back again,
wherein the portions of the first and the second endless metal belt guided through the press gap are guided between the pressing surface of the at least one pressing stamp and the at least one counter-pressure element, and the pressing surface of the pressing stamp is smaller than a surface of the side of the at least one pressing plate facing the at least one counter-pressure element,
wherein a length of the pressing surface of the at least one pressing stamp is larger, when viewed in a belt transverse direction of the two metal belts, than a width of the pressing surface of the at least one pressing stamp in the circumferential direction of the two metal belts,
wherein the length of the pressing surface of the at least one pressing stamp is at least two thirds of a belt width of the metal belts, and the pressing surface, when viewed in the belt transverse direction of the two metal belts, covers at least one belt center and a belt region of both of the metal belts located on both sides of the belt center so as to be directly adjacent to the belt center,
wherein the at least one pressing stamp is connected to at least one first actuator,
wherein the pressing plate is connected to a second actuator which is actuated independently of the first actuator,
wherein the at least one pressing stamp is mounted on a frame protruding laterally beyond the at least one pressing plate when viewed in the belt transverse direction of the two metal belts,
wherein the at least one actuator is hinged to a section of the frame protruding laterally beyond the pressing plate when viewed in the belt transverse direction of the two metal belts, and
wherein a section of the frame arranged directly above the pressing stamp is formed to be mechanically more rigid than a section of the frame protruding laterally beyond the pressing plate.