PASTE COATING DEVICE AND METHOD

• Main Authors: NAKAMURA MASAO, KIO MITSUYOSHI, KOIKE YUKIO, TORIGOE TETSUSHIRO, HARA TOMOTOSHI
• Format: Patent
• Language: English
• Published: 12.04.1996
• Edition: 6
• Subjects: APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PERFORMING OPERATIONS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; SPRAYING OR ATOMISING IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSPORTING

PURPOSE: To always make the coating amount of paste almost constant by a noncontact process to the paste by measuring the amount of paste applied to a core material based on radiation transmission amount, and controlling a paste coating control slit according to the measured value. CONSTITUTION: A continuous belt-shaped metallic core material 1 passes through a hopper 22 filled with paste mainly comprising battery active material powder. The core material 1 passes through a paste coating control slit 22 having blades 23a, 23b to control the paste coating amount, then sent to a drying furnace 31 to dry the coated paste. The core material l passes through a weight measuring unit 4 to measure the paste coating amount. Radiation such as βrays is irradiated to the paste and the transmitted radiation amount is caught with an ion chamber. A signal corresponding to the radiation amount is outputted to an arithmetic processing unit 6, compared with reference data, and a blade control means is controlled through a motor control circuit 7 to control the distance between the blades constituting the slit.