Apparatus for continuously producing pleated semipermeable membrane elements
AssigneeDaicel Chemical Industries, Ltd.
InventorHisataro Akao
Life of this patent
Estimating the term…
Abstract
An apparatus comprising a mechanism for loosely folding a strip of assembly of a synthetic resin semipermeable membrane and a spacer in pleats of uniform or uneven width, and a mechanism for completely folding the folded portion of the assembly within a holding case. A plurality of such holding cases are utilized to prepare completely folded portions of assembly in succession as individually held in the cases to obtain pleated semipermeable membrane elements by a continuous operation.
Claims12
An apparatus for continuously producing pleated semipermeable membrane elements comprising means for continuously feeding a strip of assembly composed of a synthetic resin semipermeable membrane and a spacer in the form of a thin sheet and superposed on at least one side of the semipermeable membrane;
- folding means having a pair of upper and lower folding blades for loosely folding the assembly fed by the feeding means;
- adhesive applying means disposed within, or to the front or rear of the folding means for applying an adhesive to the opposite selvage portions of the assembly on one side thereof;
- holding cases each having an openable lid at each of its inlet and outlet;
- transfer means for placing the folded portion of the assembly into one of the holding cases while progressively folding the assembly more compactly, said transfer means comprising a plurality of pilot plates insertable between pleats of the folded assembly, at least two pairs of guide chains operable by frictional power transmission for moving the pilot plates as supported vertically thereon, means for attaching the pilot plates to the guide chains at a specified spacing and removing the pilot plates from the guide chains, and a pair of upper and lower belt conveyors positionable above and under the folded assembly and approximately equal to the folded assembly in width;
- counter means disposed in the vicinity of the inlet of the holding case for counting the number of the pleats of the folded assembly;
- cutter means disposed on the inlet side of the holding case for cutting the folded assembly;
- compressing means disposed on the outlet side of the holding case for compressing the folded assembly in the holding case;
- and means for selecting said one of the holding cases and supplying the same.
An apparatus for continuously producing pleated semipermeable membrane elements comprising means for continuously feeding a strip of assembly composed of a synthetic resin semipermeable membrane and a spacer in the form of a thin sheet and superposed on at least one side of the semipermeable membrane;
- folding means having a pair of upper and lower folding blades for loosely folding the assembly fed by the feeding means, a pair of upper and lower reciprocating holding plates for holding the assembly, and means for controlling the movement of the holding plates in accordance with the desired width of the assembly;
- adhesive applying means disposed within, or to the front or rear of the folding means for applying an adhesive to the opposite selvage portions of the assembly on one side thereof;
- holding cases each having an openable lid at each of its inlet and outlet;
- transfer means for placing the folded portion of the assembly into one of the holding cases while progressively folding the assembly more compactly;
- counter means disposed in the vicinity of the inlet of the holding case for counting the number of the pleats of the folded assembly;
- cutter means disposed on the inlet side of the holding case for cutting the folded assembly;
- compressing means disposed on the outlet side of the holding case for compressing the folded assembly in the holding case;
- and means for selecting said one of the holding cases and supplying the same.
Dependencies are inferred from the claim text.