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With the continuous development of the electronic industry, as many products in the electronic industry, dispensing machines are used for dispensing and packaging. Of course, there are so many industries in the market. Dispensing machines are not only used in the electronic industry, such as LED outdoor lighting, automotive electronics, communication electronics, solar energy and other industries. Among them, there are some tips in the use process.

在設備使用過(guò)程中，如果膠水用完，點(diǎn)膠閥內會(huì )有空氣。

During the use of the equipment, if the glue is used up, there will be air in the dispensing valve.

1.檢查軟管是否已超過(guò)有用使用時(shí)間。

1. Check whether the hose has exceeded the useful service time.

2.如果有這樣的情況，將點(diǎn)膠閥或點(diǎn)膠泵清理干凈，同時(shí)按照相關(guān)操作步驟進(jìn)行操作。

2. If there is such a situation, clean the dispensing valve or dispensing pump, and operate according to relevant operation steps.

3.關(guān)閉分配器，同時(shí)打開(kāi)閥門(mén)，取下冷卻套。

3. Close the distributor, open the valve and remove the cooling jacket.

4.然后取下氣壓頭。

4. Then remove the pneumatic head.

5.下一步是取下軟管時(shí)，要檢查點(diǎn)膠閥上是否還有彎頭管件，前提是彎頭管件可用。

5. The next step is to check whether there are elbow fittings on the dispensing valve when removing the hose, provided that the elbow fittings are available.

6.取下膠管，將點(diǎn)膠閥鎖在適配器底部時(shí)，會(huì )有少許空腔。如果有這樣的情況，可以用舊軟管中的膠體填充空腔，并檢查是否有氣泡。如果出現氣泡，用新的軟管將氣泡填滿(mǎn)，然后堅持是否了氣泡。如果仍然有氣泡，考慮更換新的軟管。

6. Remove the hose and lock the dispensing valve at the bottom of the adapter, there will be a little cavity. If this is the case, fill the cavity with the colloid in the old hose and check for bubbles. If bubbles appear, fill them with a new hose, and then insist whether the bubbles are eliminated. If there are still bubbles, consider replacing the hose with a new one.

7.在這里我們不得不說(shuō)，更換膠管取決于凝膠的流動(dòng)性是否合適。不能從頭到尾出現氣泡，因為氣泡會(huì )造成滴漏、膠點(diǎn)重量變化等問(wèn)題。因此，在更換膠管或填充過(guò)程中經(jīng)常會(huì )出現氣泡。

7. here we have to say that replacing the hose depends on whether the mobility of the gel is suitable. Bubbles shall not appear from beginning to end, because bubbles will cause problems such as dripping and leakage, change of glue dot weight, etc. Therefore, bubbles often appear in the process of replacing the hose or filling.

8.因此，更換膠管時(shí)，切記不要讓空氣進(jìn)入膠體通道。如發(fā)現空氣殘留，且不確定空氣是否通過(guò)膠管進(jìn)入點(diǎn)膠泵，請按以下步驟更換膠管:

8. Therefore, when replacing the hose, remember not to let air enter the colloid channel. If air remains and it is uncertain whether the air enters the dispensing pump through the hose, replace the hose as follows:

1)檢查點(diǎn)膠閥上連接軟管的適配器。主要檢查是否有膠體溢出，如有，擦去。

1) Check the adapter connecting the hose on the dispensing valve. Mainly check whether there is colloid overflow. If so, wipe it off.

2)重新安裝氣動(dòng)頭。

2) Reinstall the pneumatic head.

3)再將軟管冷卻套重新安裝。

3) Reinstall the hose cooling sleeve.

4)關(guān)閉飲水機門(mén)。

4) Close the water dispenser door.

5)重新啟動(dòng)分配器。

5) Restart the distributor.

需要注意的是要有足夠的排膠時(shí)間，使新膠管中的膠水順利流出點(diǎn)膠頭，并確認點(diǎn)膠閥的壓力和速度都是按照理想狀態(tài)設定的。然后測量膠體流速，直到連續兩次測量的誤差在正負2%的范圍內。

It should be noted that there should be enough glue discharge time to make the glue in the new hose flow out of the dispensing head smoothly, and confirm that the pressure and speed of the dispensing valve are set according to the ideal state. Then measure the colloid flow rate until the error of two consecutive measurements is within the range of plus or minus 2%.