| 摘要 |
Glue droplet applicator Polyethylene tank tapers downwards and has connected hose. One sector of the hose is airtightly enclosed in a chamber and the hose has plastics tubes with ball seals level with the closed ends of this chamber. The chamber can be coupled to an air source for variable pressurizing and this exerts a pinching effect on the hose inside so that the glue can be metered out in droplets through the other tube when the ball seal is unseated, as compared with the first tube which is sealed by the pressure forcing the ball down.
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