Fiber molding system and method
OwnerAlexander Segalinventor
Life of this patent
Estimating the term…
Abstract
A wet press for forming molded fiber products includes a slurry tank for holding a pulp slurry, and a forming platen for holding a forming die having a porous forming surface. The forming platen is movable between a dipping position proximate the tank and a pressing position spaced apart from the dipping position. The wet press further includes a transfer platen for holding transfer tooling having a first transfer face and a second transfer face. The transfer platen is movable for selectively positioning each of the first transfer face and the second transfer face in alignment with the forming platen when the forming platen is in the pressing position.
Claims20
A wet press for forming molded fiber products, comprising:
- a) a slurry tank for holding a pulp slurry;
- b) a forming platen for holding a forming die having a porous forming surface, the forming platen movable between a dipping position proximate the tank and a pressing position spaced apart from the dipping position;
- and
- c) a transfer platen for holding transfer tooling having a first transfer face and a second transfer face, the transfer platen movable for selectively positioning each of the first transfer face and the second transfer face in alignment with the forming platen when the forming platen is in the pressing position.
A method for supplying wet pressed molded fiber articles to a dry press, the method comprising:
- a) moving a forming platen to dip a forming face of a forming die secured thereto into a slurry tank and deposit a first fiber mat on a porous forming surface of the forming face;
- b) moving the forming platen to a pressing position, wherein the forming platen is rotated about a first horizontal axis to direct the forming face upwards;
- c) pressing a first transfer die of transfer tooling mounted to the transfer platen against the first fiber mat on the forming platen when the forming platen is in the pressing position, the transfer platen having a second transfer die opposite the first transfer die;
- d) transferring the first fiber mat from retained engagement on the forming platen to retained engagement on the first transfer die;
- e) rotating the transfer platen about a second horizontal axis to direct the first transfer die upwards and the second transfer die downwards;
- f) moving the forming platen proximate the slurry tank, wherein the forming platen is rotated about the first horizontal axis to direct the forming face downwards;
- g) dipping the forming face in the slurry tank, to deposit a second fiber mat on the porous forming surface of the forming face;
- h) moving the forming platen to the pressing position, wherein the forming platen is rotated about the first horizontal axis to direct the forming face upwards;
- i) pressing the second transfer die of the transfer tooling mounted to the transfer platen against the second fiber mat on the forming platen when the forming platen is in the pressing position;
- j) transferring the second fiber mat from retained engagement on the forming face to retained engagement on the second transfer die;
- and
- k) transferring the first fiber mat and the second fiber mat from the transfer tooling to first and second press stations of the dry press.
Dependencies are inferred from the claim text.