Although the desktop dispensing machine has many advantages in dispensing operation, but also not to say that it is perfect. Because the dispensing equipment has just come out soon, the performance also has some defects, such as bubbles in the dispensing process, the dispensing process every time needs to be replaced because of glue, glue the outer barrel air into the barrel, if not drained before dispensing it, and will cause the barrel of the glue chemical reaction that causes bubbles and other problems. With the production technology requirements continue to increase, the desktop type dispensing dispensing machine production technology also need to constantly upgrade, before most of the manual dispensing dispensing mode, only a few large enterprises can use foreign automatic dispensing machine, manual dispensing dispensing dispensing mode not only slow, quality is not high, and the operation is complex, the key is not complete with geometric patterns in the dispensing operation, due to the production process requirements become more stringent, the need to manually dispensing is already unable to meet in the production of desktop dispensing machine was born.