CONSTANT LIQUID DELIVERY DEVICE

PCT No. PCT/JP90/00888 Sec. 371 Date Feb. 28, 1992 Sec. 102(e) Date Feb. 28, 1992 PCT Filed Jul. 10, 1990 PCT Pub. No. WO92/00813 PCT Pub. Date Jan. 23, 1992.An apparatus for accurately dispensing a predetermined amount of viscous liquid such as conductive adhesive, cream solder and the like. The ap...

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Bibliographic Details
Main Author SHIMANO, ICHIRO
Format Patent
LanguageEnglish
Korean
Published 06.10.1994
Edition5
Subjects
APPARATUS FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL
APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL
ATOMISING APPARATUS
CONTROLLING
NOZZLES
PERFORMING OPERATIONS
PHYSICS
REGULATING
SPRAYING APPARATUS
SPRAYING OR ATOMISING IN GENERAL
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
TRANSPORTING
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Summary:PCT No. PCT/JP90/00888 Sec. 371 Date Feb. 28, 1992 Sec. 102(e) Date Feb. 28, 1992 PCT Filed Jul. 10, 1990 PCT Pub. No. WO92/00813 PCT Pub. Date Jan. 23, 1992.An apparatus for accurately dispensing a predetermined amount of viscous liquid such as conductive adhesive, cream solder and the like. The apparatus includes a first pressure sensor arranged in a pipe line connected between a dispensing solenoid valve and a syringe, and a second pressure sensor and an accumulator arranged in a pipe line connected between the dispensing solenoid value and an air supply so that an output is controlled in accordance with variation of an integral valve of pressure measured by the first pressure sensor integrated with a preset output time of the shifting output signal thereby controlling the dispensing of liquid based on the remaining amount of liquid in the syringe and the variation in the internal pressure in the syringe to accurately discharge the predetermined amount of liquid and prevent dripping of liquid from the syringe.
Bibliography:Application Number: KR19910700780