How to solve the problem of glue dispensing and wire drawing in the glue dispensing machine

Nowadays, the production process of dispensing machine dispensing is relatively complete. Depending on the processing technology of different products, some products will use low viscosity glue. During the entire dispensing process in an automatic dispensing machine, due to its low viscosity, it is particularly prone to wire drawing, resulting in a decrease in flowability, severe wire drawing, and endangering the appearance. So, how can we solve this problem?

If the customer's product quality regulations are very strict, it can be considered from the perspective of hardware configuration. The threading gate valve is equipped with a professional gate valve for low viscosity liquids, such as imported extruder screw gate valves. The viscosity value of the glue is presented to the manufacturer, and the manufacturer can assist you in showing the type of viscosity value to achieve better actual results in the dispensing process of the dispensing machine. Naturally, for low viscosity spiral valves, the price is relatively expensive, but it can assist you in handling drawing conditions.

In various dispensing operations of automatic dispensing machines, the following methods can be applied to reduce or handle wire drawing difficulties:

1. Opening glue delay time

When the rubber head is opened, there is no glue between the glue inlet and outlet and the gate valve. If there is no glue in the middle of the distance, if the rubber entrance and exit are opened, the fitness exercise will gradually progress, which will cause a brief rest. The error in the amount of glue produced is likely to cause wire drawing. To better avoid such situations, after the glue is opened, it will delay for a period of time, wait for the glue to be discharged, and then proceed with the assigned posture.

2. Glue delay time

After the rubber head is turned off, there is still no adhesive flow between the rubber inlet and outlet and the rubber valve. If the rubber head is moved immediately after turning off the rubber head, it is very likely to cause glue dragging and wire drawing. In order to better avoid such situations, after the rubber head is turned off, wait for a period of time for the glue to flow, and then proceed with the dispensing machine dispensing processing to assign positions.

3. Wire drawing aspect ratio

Due to the low viscosity of some adhesives (such as yellow glue and thermosols), the glue can be pulled out at a stable rate and is not easily damaged on the glue track.

4. The aspect ratio of the lifting platform

After the track is moved to the starting and ending points of the next track, in order to better avoid the rubber head colliding with the needle, the glue may not look good, and even drive the cable. At the terminal, the rubber head is raised in a height to width ratio to ensure that it is not easily touched by the needle. Then move to the starting point of the next track to carry out the dispensing machine dispensing processing.

5. Turn off the glue early

In the continuous use of rail adhesive, before reaching the finish line, turn off the rubber head, and use residual working pressure and residual adhesive to apply adhesive to the dispensing machine for the remaining movement trajectory, in order to prevent the tail end and stretching of the pile.

6. Completion posture

After the allocation of all classroom teaching tracks, in order to facilitate the retrieval of product workpieces, improve the dispensing efficiency of the dispensing machine, or reduce processing error values, the glue head can be moved to the designated position, or the starting point can solve the document, or the end station of the document can be solved, or calibration, or the transmission gear connection can also reduce the drawing difficulties caused by incorrect processing.

7. Tilt and extend upwards

Due to the stickiness of the adhesive, immediately starting the wire drawing position after the adhesive is closed cannot achieve the actual effect of the broken wire skin very well, or the appearance of the wire drawing skin does not comply with regulations. Therefore, after the rubber head is turned off, implementing a top angle pull up position to prepare for stretching in advance can avoid stretching conditions.

8. Glue heating

When dispensing with a glue dispenser, it is possible to try heating the glue according to the specific situation to improve its fluidity, or to solve the problem of wire drawing. Pay attention to the appropriate heating temperature and not to be too high.