How to improve the dispensing quality of automatic dispensers?

2021-11-08

How to keep the dispensing effect of the Automatic Dispenser in a good state is a problem that every equipment manufacturer should pay attention to.
1. The difference between glue and the choice of the corresponding glue outlet is also very knowledgeable.

Ultraviolet curing glue: use black opaque syringe to avoid feeling light;

Ultraviolet glue: use amber syringe, white piston and oblique needle (can block ultraviolet rays); if other needles are used, ultraviolet shielding needles can be customized;

Anaerobic glue: use 10cc syringe and white polyethylene universal piston;
Quick sol: Use safety piston and Teflon lined metal needle for water-based quick sol, and tapered needle for concentrated quick sol;

Sealant and paste liquid: When the white piston rebounds severely, please use safe movable and oblique needles;

The point-to-surface method should be used to adjust various parameters. Any changes in parameters will affect other aspects, defects may appear in multiple ways, and possible factors should be checked one by one.

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2. The size and stability of the dispensing pressure will also affect the dispensing effect. After determining that the proper nozzle is in contact with the contact surface, it is necessary to find the proper air pressure through multiple attempts. If the air pressure is too high, it will cause the glue to overflow, too much glue, and too small pressure will cause intermittent glue dispensing, poor glue dispensing effect, unstable air pressure will also cause uneven glue dispensing, etc. Therefore, the factory needs to maintain a stable and appropriate air pressure , In order to ensure a good glue effect.

3. The glue dispensing effect is not only affected by the control effect of the glue valve of the glue dispenser itself, but also by the viscosity of the glue liquid. The viscosity is large, the glue is slow, easy to draw, the viscosity is too low, the fluidity is strong, the glue control becomes difficult and easy to drip, so choosing the appropriate viscosity glue can also effectively solve the problem of glue efficiency. In addition, the packaged glue must not have bubbles, which will cause part of the glue to break and no glue. Every time the glue or hose is replaced, the glue or hose should be discharged correctly to eliminate the air in the cavity and ensure smooth glue delivery.

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4. When adjusting the dispensing parameters and editing the dispensing trajectory, selecting the appropriate needle and adjusting the proper distance between the needle and the contact surface will also affect the dispensing effect. After several attempts, better position parameters can be obtained. Before each work, the distance between the needle and the working surface should be calibrated, pay attention to observe the dispensing effect under different parameters, sum up experience, moderate fine-tuning workshop should arrange a special person to learn the operation and maintenance of the machine, and assign a special person to be responsible for the operation of the machine to ensure Two or more people understand the operation of the machine at the same time to prevent one of them from leaving the work position, and the others can leave the work position immediately to reduce the impact of personnel turnover.

Whether it is an automatic dispenser or other automated equipment, every factory hopes to achieve better results and create greater value after it is put into production, so everyone should learn and master the operation methods of the equipment, and do a good job of maintenance.

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