Accurate double-liquid glue dropping device

Abstract

The invention discloses a dispensing device, comprising a framework, a container and a needle nozzle arranged from top to bottom in sequence. An elevating rod and a cam are installed in a cavity of the framework; a roller wheel at the top of the elevating rod contacts the cam tightly; the elevating rod stretches from the framework and is connected with the container; two hollow rods are arranged in the container; the two hollow rods are respectively sheathed with buffer springs and penetrate the bottom and a cover plate of the container; the two hollow rods are provided with connecting pipes at the bottom, pressure holes on the top covers and glue inlet holes on the sides; each hollow rod is internally provided with a piston and a glue inlet valve; the glue inlet valve is provided with a glue inlet opening and a glue channel; the glue channels of the two glue inlet valves are connected and the connecting pipe is connected with a mixing pipe communicated with the glue channel; the mixing pipe is provided with a mixed glue blade and is connected with the needle nozzle at the bottom end; the outside wall of the framework is fixed with a sensing surface of a displacement sensor; a probe of the displacement sensor is fixed on a support connected with the hollow rod. The dispensing device can carry out dispensing precisely; thereby can not only effectively avoid glue leakage and glue coagulation but also avoid damage of the needle nozzle.

Description

technical field [0001] The invention relates to a glue dispensing device, in particular to a glue dispensing device capable of automatically controlling the glue output. Background technique [0002] In the dispensing process of the jewelry industry, in order to achieve the aesthetic effect of the jewelry, it is often necessary to inlay many rhinestones of different colors and sizes on the same jewelry base, so the size of the empty table for placing the rhinestones will be different. Due to the difference in the size of the empty table, it is difficult to reasonably control the amount of glue dispensed according to the size of the empty table during the dispensing process (the amount of glue dispensed should be controlled at about 1 / 3 of the volume of the empty table). In the existing dispensing technology, only simple quantitative dispensing can be performed, and it is impossible to automatically judge and reasonably control the glue output while dispensing. [0003] Duri...

AI Technical Summary

Problems solved by technology

Although the existing equipment is capable of double-liquid dispensing, it cannot accurately control the mixing ratio of the two glues, and the phenomenon of gel and dripping cannot be solved well during the dispensing process, resulting in low dispensing quality and requiring Frequent repair and maintenance of the dispensing device, unsatisfactory production efficiency

Images