PURPOSE:To provide an adhesive agent coater which can prevent generation of stirring heat and volatilization of the solvent from an adhesive agent by connecting a compressed air introducing pipe having a compressed air interruptor to a lower adhesive agent tank provided with a cylinder for preventing reverse flow which consists of plural space parts communicated internally with the fine through-holes of partition plates. CONSTITUTION:Compressed air is intermittently fed into a lower adhesive agent tank 1 by a compressed air interruptor 10 to increase the air pressure in the tank 1 and to rise an adhesive agent 21 in an outflow pipe 13. The agent 21 is risen as well in a cylinder 11 for preventing back flow of the adhesive agent in this stage but the height of the liquid surface thereof delays fairly in time from the height of the liquid surface in the pipe 13. The agent 21 in the pipe 13 is fed into an upper adhesive agent tank 12 and at the same instant, the pressure in the tank 1 is released to the atmospheric pressure by the interruptor 10. The agent 21 in the pipe 13 is thus returned into the tank 1 and the agent 21 in the cylinder 11 is also returned to the inside of the tank 1 although the return thereof delays in time. In the figure, 10 denotes the bolt to be coated with the adhesive agent and 6 the nozzle to supply the adhesive agent, respectively.
展开▼
