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Attention should be paid to the use of automatic dispensing machines

1、 Power on preparation

Machine stability:Place the dispensing machine on a stable workbench to ensure that the equipment is stable and reliable; The optimal temperature control in the workshop is around 23 ℃, and the humidity should not be too high to avoid environmental factors affecting the adhesive performance. Before starting up, check if the power supply and air source are connected properly. Adjust the air source pressure to 0.3-0.6 megapascals, similar to inflating a bicycle, and tighten the pressure gauge. At the same time, check whether the hydraulic and electrical systems are operating normally and eliminate foreign object interference.

Needle selection:The viscosity of the glue determines the choice of needle - similar to pouring honey with a coarse straw, high viscosity glue uses a coarse needle; When the glue is thin, it looks like eye drops, using a fine needle. The inner diameter of the needle should be half of the diameter of the adhesive point, and different diameters should be matched according to the size of the solder pad. After installation, the needle height (Z-axis) needs to be calibrated, with an error not exceeding 1/5 of the hair thickness.

2、 Adhesive treatment

Adhesive pretreatment:UV glue should be stored away from light, and bubbles should be removed like shaking a cola to release air before use; The two-component adhesive needs to be thoroughly mixed evenly, similar to the kneading process. The temperature of the adhesive is crucial - epoxy adhesive should be stored in an environment of 0-5 ℃ and removed half an hour before use; Environmental temperature changes may cause fluctuations in dispensing volume.

Clear the pipe before changing the adhesive:When changing the type of glue, thoroughly clean the pipeline to avoid mixing residues, just like washing cups when changing drinks.

Check the glue points at any time:Check the size of the adhesive dots every 10 minutes to ensure stable diameter. The adhesive dots should be half of the product spacing and have a diameter of 1.5 times after bonding.

3、 Operational safety

Try before doing:Manually squeeze out 2-3 drops of glue and spray 5-10 samples, similar to writing a pen; Ensure that the adhesive dots are smooth and cannot be removed by force after curing. Pay attention to abnormal noise after starting up, and immediately stop the machine for inspection if there is any abnormal noise.

Wear all protective gear:Operators must wear protective goggles, gloves, and anti-static wrists to prevent glue from splashing into their eyes or coming into contact with their skin; Do not put your hands inside the machine, similar to the safety principle of heating rice in a microwave oven.

Quick problem resolution:Common troubleshooting - increase the air pressure by 0.1 megapascal or raise the needle during wire drawing; Reduce dispensing time when glue leaks; If the glue does not come out, the needle should be unblocked, the air pressure should be checked, or the glue should be heated. When an accident occurs, press the emergency switch to immediately stop the machine.

4、 Maintenance points

Daily must do:Clean the needle and track after work, just like wiping a bicycle chain; Check the tightness of the screws to avoid looseness.

Monthly maintenance:Add lubricating oil to the track; Calibrate the needle position to ensure accuracy.

Regular replacement:The belt sealing ring should be replaced every six months (adjusted according to actual usage). Regularly test safety parameters such as grounding resistance to prevent leakage risks.

5、 Small Tips

When using the surface dispensing function, turn on the camera assistance, similar to a mobile facial recognition system; Run the program once after programming is completed to prevent needle collision accidents. In addition, the dispensing pressure needs to be finely adjusted: excessive pressure can easily cause glue to overflow, while insufficient pressure can cause intermittent dispensing or leakage; Dynamically adjust based on adhesive viscosity and temperature.