What Effect Does Colloid Have On The Dotting Machine Itself

In addition to the influence of glue and the external environment, for the silicone dispenser itself, usually the silicone dispenser used by the company uses a screw pump to supply the dispensing needle, so a constant pressure needs to be taken to ensure that enough glue is supplied to the screw pump If it is too large, the glue will overflow and the amount of glue will be too much; if the pressure is too low, the glue will be intermittent and leak, resulting in defects. Therefore, the pressure of the silicone dispenser equipment should be selected according to different glues of the same quality and the working environment temperature of the silicone dispenser. High ambient temperature will reduce the viscosity of the glue and improve the fluidity. At this time, the back pressure needs to be adjusted down to ensure the supply of glue, and vice versa. According to the work experience, the size of the dispensing amount of the silicone dispenser equipment should be half of the pad spacing, and the diameter of the glue point after the patch should be 1.5 times the diameter of the glue point, so as to ensure that there is sufficient glue To adhere the components and avoid too much glue to infiltrate the pad, the amount of glue is determined by the rotation time of the screw pump. In practice, the rotation time of the pump should be selected according to room temperature and the viscosity of the glue.