Toshiba Kikai Kabushiki Kaisha

Toshiba Battery Co., Ltd.

Yoshiyuki Sakai

Toshihiko Kusago

Gen Takayama

Shigeo Kasahara

Yasuhiro Kuroki

Tsutomu Horikoshi

Takeo Ito

Kazuta Takeno

Akinori Ide

Hiroshi Kaneko

Katsuhiko Iguchi

Kenya Shinozaki

Tatsuya Yoshikawa

The coating material is supplied to a coating die provided with a manifold chamber, a draw-in chamber provided with a diaphragm, a supply passage and a discharge opening. The coating material is stored temporarily in the manifold chamber, is supplied through the supply passage to the discharge opening, and is discharged through the discharge opening onto the surface of the base sheet. The discharge of the coating material through the discharge opening is interrupted by deforming the diaphragm so as to form a draw-in chamber. The ball nut is driven by the servomotor so as to move the ball screw axially away from the supply passage to deform the flexible diaphragm so that the coating material is drawn into the draw-in chamber to interrupt discharging the coating material through the discharge opening. Thus, the coating material is applied intermittently to the substrate.

Coating apparatus for applying coating material intermittently to substrate

An upper die unit ( ) and a lower die unit ( ) are disposed in opposition, with a gap, to a substrate ( ) being conveyed, and provided with coating agent supply flow paths ( ) which have inlet paths ( ) for a coating agent to flow in and delivery ports ( ) for delivering the coating agent to coat the substrate ( ) therewith. An accumulation piece ( ) installed in a flow path part ( ) of each die unit ( ) moves in the direction in which it goes away from the flow path part ( ), drawing in the coating agent, dwelling the delivery of the coating agent from the delivery port ( ), forming a non-coated part (F), and repeats a reciprocating action, repeating a coating and non-coating. An elastic plate ( ) on a way of the coating agent supply flow path ( ) is displaced in accordance with advance/retreat actions of a piston member ( ) caused by a rotation of a cam ( ).

Intermittent coating system and intermittent coating method

A coating die is disclosed, in which a slit-like spacing 29 is formed between a pair of die elements 25, 27 arranged in opposed relation to each other. A band-shaped electrode sheet 23 is movable along the length of the spacing 29. The sides of the slit-like spacing along the width of the electrode sheet 23 are enclosed. An electrode piling agent is supplied from an external source into the die element pair 25, 27 through supply flow paths 47, 49. Discharge ports 47a, 49a of the supply flow paths 47, 49 are open to the slit-like spacing 29. The portion of the spacing 29 downstream of the discharge ports 47a, 49a in the direction of movement of the electrode sheet 23 has a thickness equivalent to the thickness of the electrode sheet 23 plus the thickness of the electrode piling agent coated on the two sides of the electrode sheet 23. The portion of the spacing 29 upstream of the discharge ports 47a, 49a has a thickness substantially equal to the thickness of the electrode sheet 23. The job of coating the electrode piling agent on the two sides of the electrode sheet can thus be performed with high accuracy.

Apparatus and method for applying a coating to a base material

Air-blowing nozzles 21 for blowing a hot air are provided in both sides of an electrode sheet 33 for a battery both surfaces of which an electrode compounding agent has been applied to. In each of the air-blowing nozzles 21, a pair of slit-shaped blowholes 65 being extended in the width direction of the electrode sheet 33 are provided on both of the upper and lower sides of the end face part 63. The hot air blown off from a pair of the upper and lower blowholes 65 dries the electrode compounding agent as well as pressurizes a space between the electrode sheet 33 and the end face part 63 to form a pressure room P, and the left and right pressure rooms P hold the electrode sheet 33 to suppress its sway.

Drying apparatus with swivel support structure for sheet direction

Drying apparatus and drying method

Growing community of inventors

Shizuoka-ken, Japan

Yoshiyuki Sakai