| 摘要 |
PROBLEM TO BE SOLVED: To provide a paste extruder which facilitates a small quantity of delivery of a paste and prevents it from dripping down from the delivery opening. SOLUTION: When a transfer member 30 engaging with a screw 12 of a feeder shaft 10 is axially moved by rotating the shaft 10 by a specified number, a required volume of paste can be extruded even if it is a little. The feeder shaft 10 is once displaced to the extruding direction of the paste by the movement of the first and second cams 14, 18 and after delivery of the paste, the feeder 10 is returned to the waiting position by the elastic force. Thereby, the plunger 36 is returned to the position and hence, the paste is prevented from dripping from the delivery opening of a cartridge. |
