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打胶机使用期间容易出现这样的问题

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打胶机作为一种工业机械设备,它在使用过程中难免会因为使用时间过长或使用不当出现一些故障,济南双组份打胶机时使用期间容易出现这样的问题:
As a kind of industrial mechanical equipment, it is hard to avoid some failures due to long use time or improper use. Jinan two-component gluing machine is prone to the following problems during use:
拉丝、拖尾
Wire drawing and tailing
故障现象:出胶过程中出现拉丝、拖尾的情况。
Fault phenomenon: wire drawing and tailing occur in the process of glue dispensing.
产生原因:胶嘴内径太小;点胶压力太高;胶嘴离PCB的间距太大;粘胶剂过期或品质不好;贴片胶黏度太高;胶水取出后未能恢复到室温;点胶量太多。
Cause: the inner diameter of rubber nozzle is too small; The dispensing pressure is too high; The distance between the rubber nozzle and the PCB is too large; The adhesive is expired or of poor quality; The stickiness of the patch is too high; The glue failed to recover to room temperature after being taken out; Too much dispensing.
解决办法:改换内径较大的胶嘴;降低点胶压力;调节“止动”高度;换胶;选择适合黏度的胶种;从冰箱中取出后应恢复到室温;调整点胶量。
Solution: replace the rubber nozzle with larger inner diameter; Reduce the dispensing pressure; Adjust the "stop" height; Change glue; Select the glue type with suitable viscosity; After being taken out of the refrigerator, it should be restored to room temperature; Adjust the dispensing amount.
固化后,元器件黏结强度不够,波峰焊后会掉片
After curing, the adhesive strength of components is not enough, and chips will fall off after wave soldering
产生原因:固化后工艺参数不到位;温度不够;元件尺寸过大;吸热量大;光固化灯老化;胶水不够;元件或pcb有污染。
Cause: the process parameters after curing are not in place; Insufficient temperature; The element size is too large; Large heat absorption; Aging of light curing lamp; Insufficient glue; Components or PCB are contaminated.
济南双组份打胶机
解决办法:调整固化曲线,特别是提高固化温度,通常热固化胶的峰值固化温度很关键,达到峰值温度易引起掉片,对光固化胶来说,应仔细观察光固化灯是否老化,灯管是否有发黑现象,胶水的数量,元件、pcb是否有污染等。
Solution: adjust the curing curve, especially increase the curing temperature. Generally, the peak curing temperature of the thermal curing adhesive is very critical, and it is easy to cause the chip to fall off when the peak temperature is reached. For the photo curing adhesive, carefully observe whether the photo curing lamp is aging, whether the lamp tube is blackened, the amount of glue, and whether the components and PCB are polluted.
空打
Air strike
故障现象:只有点胶动作,无出现胶量。
Fault phenomenon: only dispensing action, no glue amount.
产生原因:混入气泡;胶嘴堵塞。
Cause: mixed with bubbles; The rubber nozzle is blocked.
解决方法:注射筒中的胶应进行脱气泡处理;按胶嘴堵塞方法处理。
Solution: the rubber in the injection cylinder should be deaerated; Handle according to the method of rubber nozzle blockage.
固化后元件引脚上浮、移位
Floating and displacement of component pins after curing
故障现象:固化后元件引脚浮起来或移位,波峰焊后锡料会进入焊盘,严重时会出现短路和开路。
Fault phenomenon: after curing, the component pin floats or shifts. After wave soldering, the solder will enter the pad. In serious cases, short circuit and open circuit will occur.
产生原因:贴片胶不均匀;贴片胶量过多;贴片时元件偏移。
Cause: uneven patch adhesive; Excessive amount of patch adhesive; Component offset when mounting.
解决办法:调整点胶工艺参数;控制点胶量;调整贴片工艺参数。
Solution: adjust the dispensing process parameters; Control the dispensing amount; Adjust the patch process parameters.
元器件偏移
Component offset
故障现象:固化元器件移位,严重时元器件引脚不在焊盘上。
Fault phenomenon: the solidified components are displaced. In serious cases, the component pins are not on the pad.
产生原因:贴片胶出胶量不均匀(例如片式元件两点胶水一个多一个少);贴片时元件移位;贴片胶黏力下降;点胶后pcb放置时间太长;胶水半固化。
Cause: the glue output of the patch adhesive is not uniform (for example, the two-point glue of the chip component is more than one and less than the other); Element displacement during mounting; The adhesive force of the patch decreases; The PCB is placed too long after dispensing; The glue is half cured.
解决办法:检查胶嘴是否有堵塞;排除出胶不均匀现象;调整贴片机工作状态;换胶水;点胶后PCB放置时间不应过长。
Solution: check whether the rubber nozzle is blocked; Eliminate the uneven phenomenon of glue discharge; Adjust the working state of the Mounter; Change glue; The PCB shall not be placed for too long after dispensing.
为了避免点胶机在日常使用过程中经常出现故障,关键是要做好点胶机的保养,维护保养点胶机要注意很多,详细内容就来我们网站http://www.jntiannuo.com咨询看看吧。
In order to avoid frequent failures in the daily use of the dispenser, the key is to do a good job in the maintenance of the dispenser. Pay attention to the maintenance of the dispenser. Please visit our website for details http://www.jntiannuo.com Let's consult.

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