How to avoid the phenomenon of drawing on the automatic dispensing machine

Committed to the technical innovation and production of the dispenser, there are several cases in which the drawing phenomenon of the glue occurs:

When the automatic dispensing machine clicks on the glue with high viscosity, it will be difficult to glue the glue, and the fluidity is poor or almost impossible to flow, such as the yellow plastic dispensing of the auto parts. Some products must use high-viscosity glue due to the needs of the process. In the process of dispensing in the automatic dispenser, due to the high viscosity, the drawing is particularly prone to occur, resulting in poor fluidity, serious drawing, and affecting the appearance. If the production company has very high quality requirements for the product, it can be considered from the hardware point of view. The dispensing valve is equipped with a valve specially designed for high viscosity fluids, such as imported screw valves, which provide the viscosity value of the glue to the manufacturer. The manufacturer can help you with the viscosity value. Matching to achieve the best dispensing effect. Of course, for high viscosity screw valves, the price will be relatively expensive, but it can help you solve the drawing phenomenon.

How to avoid the drawing phenomenon in the dispensing operation of the automatic dispensing machine:

The automatic dispenser starts the dispensing delay. When the rubber head is opened, there is no glue between the rubber outlet and the rubber valve. If there is no glue between the distances, if the rubber outlet is opened, immediately Starting the movement will cause the track to start a short period of lack of glue, forming an error amount of glue, which may cause drawing. In order to prevent this, after the glue is opened, it is delayed for a while, waiting for the glue to flow out, and then the subsequent dispensing action.

The automatic dispensing mechanism glue delays. After the rubber head is closed, there is still no glue flowing between the rubber dispensing port and the rubber valve. If the rubber head is moved immediately after closing the rubber head, glue tailing and drawing may occur. To prevent this from happening, after the rubber head is closed, wait for a while to wait for the glue to flow, and then perform the subsequent dispensing action.

When the automatic dispensing machine draws the glue, the height of the Z-axis of the dispenser is increased to avoid the drawing phenomenon. Due to the high viscosity of some glues (such as yellow glue, hot melt adhesive), the glue can be pulled off at a constant speed and can not break the glue track. When a track is finished, after moving to the starting point of the next track, in order to prevent the rubber head from hitting the needle, the glue is not beautiful, and even the wire is pulled. At the end point, the rubber head is raised to a certain height to ensure that the rubber head is safe and does not hit the needle. Then move to the starting point of the next track.

The automatic dispenser can close the glue in advance when dispensing, and close the glue distance in advance. In the continuous track glue, close the rubber head before reaching the end point, and finish the last track with the residual pressure and residual glue to avoid the end section. Glue and wire drawing.

Automatic dispensing machine, after the dispensing process is finished, in order to facilitate the pick-and-place of the workpiece, improve the processing efficiency or eliminate the machining error, you can set the rubber head to move to the specified position, or the starting point of the processing file, or the processing file end point, or reset, Or the gear connection can also reduce the drawing problem caused by machining errors.

During the dispensing process of the automatic dispenser, the Z-axis of the dispensing is lifted up to avoid the drawing phenomenon. Due to the viscosity of the glue, the wire drawing action directly after the glue is closed cannot achieve the effect of breaking the glue wire, or the shape of the pulled rubber wire does not meet the requirements. Therefore, after the rubber head is closed, the diagonal pull up action is performed to prepare for drawing, which can prevent the drawing phenomenon from occurring.

The automatic dispenser heats some glue during dispensing and can be drawn. The customer can try to heat the glue to a suitable temperature, increase the fluidity of the glue, and also solve the drawing in a certain sense, pay attention to the heating temperature should not be too high.