To provide a high viscosity pump head for supplying high viscosity coating liquid or coating liquid of a system dispersed with fine particles such as fillers and microcapsules without pulsation to a coating device for applying the coating liquid to substrates continuously conveyed.
The high viscosity pump head for supplying the coating liquid to the coating device for applying the coating liquid onto the substrates continuously conveyed is equipped with a pump chamber having a piston in the center, a liquid suction chamber having a suction valve seat, a suction valve ball and a suction valve ball stop for sucking the coating liquid in a downside direction of the pump chamber and a liquid discharge chamber having a discharge valve seat, a discharge valve ball and a discharge valve ball stop for discharging the coating liquid in an upside direction of the pump chamber, and has a means for sucking and discharging the coating liquid through reciprocating motion of the piston. The high viscosity pump head is characterized in that vibrating means are provided on the suction valve seat for sucking the coating liquid and on the discharge valve seat for discharging the coating liquid.
WO/2022/028869 | APPARATUS FOR CONVEYING VISCOUS MATERIAL |
JP2503127 | Description: High-viscosity pump device |
KUBOYAMA SATOSHI
HASEGAWA MASAYUKI
ASAMA HIDEO