全自动封胶线实操科普：白胶泵密封圈这样换，杜绝漏胶保顺畅

　　Practical popularization of fully automatic sealing line: Replace the sealing ring of the white glue pump in this way to prevent glue leakage and ensure smooth operation

　　在全自动封胶线的供胶系统中，白胶泵是保障白胶稳定输送的核心部件，而密封圈则是白胶泵防漏胶的关键“防线”。长期使用后，密封圈会因胶液腐蚀、机械磨损出现老化、变形，进而导致漏胶问题，不仅浪费胶液、污染设备，还会影响封胶精度，耽误生产进度。其实白胶泵密封圈更换看似工序多，只要按步骤规范操作就能轻松完成。今天就结合一线实操经验，给大家科普全自动封胶线白胶泵密封圈的具体更换方法。

　　In the glue supply system of the fully automatic sealing line, the white glue pump is the core component to ensure stable transportation of white glue, and the sealing ring is the key "defense line" for preventing leakage of white glue in the white glue pump. After long-term use, the sealing ring will age and deform due to corrosion of the adhesive and mechanical wear, leading to leakage problems. This not only wastes the adhesive and pollutes the equipment, but also affects the sealing accuracy and delays production progress. In fact, replacing the sealing ring of the white glue pump may seem like there are many procedures involved, but as long as you follow the steps and operate them in a standardized manner, it can be easily completed. Today, based on practical experience on the front line, we will explain to you the specific replacement method of the sealing ring of the fully automatic sealing line white glue pump.

　　先跟大家理清核心逻辑：更换密封圈的核心目标是彻底替换失效部件，重建密封效果，操作全程围绕“安全拆解-清洁除杂-精准安装-复位测试”展开。重点要注意做好管路标记、避免损伤活塞、保证密封圈安装到位，不用复杂专用工具，准备好扳手、清洁布、润滑油等常用物品即可，新手也能逐步上手。

　　First, let me clarify the core logic: the core goal of replacing the sealing ring is to completely replace the failed component, rebuild the sealing effect, and the entire operation revolves around "safe disassembly - cleaning and impurity removal - precise installation - reset testing". It is important to pay attention to properly marking the pipeline, avoiding damage to the piston, and ensuring that the sealing ring is installed in place. Complex specialized tools are not required, and commonly used items such as wrenches, cleaning cloths, and lubricants should be prepared. Even beginners can gradually get started.

　　第一步，断电泄压，标记拆管。操作前必须让全自动封胶线停机并切断电源，同时对胶路、油路泄压，避免拆管时胶液或油液喷射。随后找到白胶泵上连接的气管和油管，用记号笔在管路和接口处做好对应标记，防止后续回装时接错；标记完成后，轻轻将气管和油管依次拔下，拔管时注意力度轻柔，避免损坏接口。

　　The first step is to cut off the power and release the pressure, and mark the removal of the pipe. Before operation, the fully automatic sealing line must be shut down and the power supply must be cut off. At the same time, the pressure of the rubber and oil circuits must be relieved to avoid spraying of glue or oil during pipe dismantling. Subsequently, locate the air and oil pipes connected to the white glue pump, and use a marker pen to mark the corresponding points on the pipes and interfaces to prevent incorrect connections during subsequent reassembly; After marking, gently remove the trachea and tubing in sequence, paying attention to the gentle force when removing the tubing to avoid damaging the interface.

　　第二步，拆解泵体，取出活塞。用扳手将白胶泵泵体两端的固定螺丝均匀拧下，注意将螺丝妥善收纳，避免丢失或混淆。螺丝拆完后，轻轻将泵体拆分為前后两部分，然后小心取出泵体内的活塞——取出时要保持活塞平稳，不要碰撞泵体内壁，防止造成划痕。

　　Step two, disassemble the pump body and remove the piston. Use a wrench to evenly unscrew the fixing screws at both ends of the white glue pump body. Pay attention to properly storing the screws to avoid loss or confusion. After removing the screws, gently split the pump body into front and rear parts, and then carefully remove the piston from the pump body - when removing, keep the piston stable and do not collide with the inner wall of the pump body to prevent scratches.

　　第三步，拆除旧圈，清洁除杂。观察活塞上的旧密封圈，用塑料刮刀或小螺丝刀轻轻将旧圈撬下来，切记不要用金属工具用力刮擦，避免划伤活塞表面，影响后续密封效果。旧圈拆除后，用干净的抹布蘸取少量专用清洗剂，彻底清理活塞表面和泵体内壁的残胶、杂质，确保接触面干净光滑，无任何污垢残留。

　　Step three, dismantle the old circle, clean and remove impurities. Observe the old sealing ring on the piston and gently pry it off with a plastic scraper or small screwdriver. Do not use metal tools to scrape it forcefully to avoid scratching the surface of the piston and affecting the subsequent sealing effect. After removing the old ring, use a clean cloth dipped in a small amount of specialized cleaning agent to thoroughly clean the residual glue and impurities on the surface of the piston and the inner wall of the pump body, ensuring that the contact surface is clean and smooth, without any dirt residue.

　　第四步，适配新圈，涂抹润滑。拿出新的密封圈，先检查其尺寸、型号是否与原密封圈一致，确保完全匹配。确认无误后，在新密封圈表面均匀涂抹一层专用润滑油，这样既能减少安装时的摩擦阻力，方便套入，还能提升密封圈的密封性能和使用寿命。

　　Step four, adapt the new ring and apply lubrication. Take out the new sealing ring and check if its size and model are consistent with the original sealing ring to ensure a perfect match. After confirming the correctness, apply a layer of specialized lubricating oil evenly on the surface of the new sealing ring. This can reduce the frictional resistance during installation, facilitate insertion, and improve the sealing performance and service life of the sealing ring.

　　第五步，安装新圈，回装活塞。将涂好润滑油的新密封圈小心翼翼地套在活塞的卡槽内，用手轻轻按压调整，确保密封圈完全卡进卡槽、无扭曲变形，且与活塞表面贴合紧密。随后将装有新密封圈的活塞对准泵体位置，缓慢平稳地推进泵体内，推进过程中注意观察，避免密封圈被泵体边缘划伤。

　　Step five, install the new ring and reinstall the piston. Carefully insert the newly lubricated sealing ring into the groove of the piston, gently press and adjust it with your hand to ensure that the sealing ring is completely inserted into the groove, without distortion or deformation, and tightly adheres to the surface of the piston. Subsequently, align the piston with the new sealing ring at the position of the pump body and slowly and steadily push it into the pump body. Pay attention to observation during the pushing process to avoid scratching the sealing ring on the edge of the pump body.

　　第六步，对齐泵体，紧固螺丝。将泵体的前后两部分精准对齐，确保安装孔完全吻合，然后将之前拆下的固定螺丝依次装回，用扳手均匀用力拧紧。这里要注意，螺丝不能一次性拧死，要分多次、交叉均匀拧紧，避免泵体受力不均导致变形，影响密封效果。

　　Step six, align the pump body and tighten the screws. Align the front and rear parts of the pump body accurately to ensure that the installation holes are completely aligned, then reinstall the previously removed fixing screws in sequence and tighten them evenly with a wrench. It should be noted that the screws cannot be tightened all at once. They should be tightened evenly in multiple times and in a cross pattern to avoid deformation of the pump body caused by uneven force, which may affect the sealing effect.

　　第七步，复位管路，试机检查。按照之前做好的标记，将气管和油管逐一接回对应接口，接好后轻轻拉动管路，确认接口连接牢固、无松动。全部安装完成后，启动设备进行试机运行，观察白胶泵是否有漏胶情况，若运行平稳、无漏胶，说明更换成功，可投入正常生产；若仍有漏胶，需停机检查密封圈安装是否到位或泵体是否对齐。

　　Step seven, reset the pipeline and conduct a test run for inspection. According to the previous markings, connect the trachea and oil pipes back to their corresponding interfaces one by one. After connecting them, gently pull the pipes to confirm that the interfaces are firmly connected and not loose. After all installations are completed, start the equipment for trial operation and observe whether there is any glue leakage in the white glue pump. If it runs smoothly without glue leakage, it indicates that the replacement is successful and can be put into normal production; If there is still glue leakage, stop the machine and check if the sealing ring is installed properly or if the pump body is aligned.

　　这里补充几个实操注意点：一是所有操作必须在断电泄压后进行，保障操作安全；二是新密封圈要选用原厂或匹配型号的，避免尺寸不符导致密封失效；三是清洁时不要用腐蚀性强的溶剂，防止损坏活塞和泵体；四是建议定期检查密封圈状态，发现老化、裂纹等迹象及时更换，不用等到出现漏胶再处理，能减少生产故障。

　　Here are a few practical points to note: firstly, all operations must be carried out after power failure and pressure relief to ensure operational safety; Secondly, the new sealing ring should be selected from the original factory or a matching model to avoid sealing failure caused by size mismatch; Thirdly, do not use highly corrosive solvents during cleaning to prevent damage to the piston and pump body; Fourthly, it is recommended to regularly check the condition of the sealing ring and replace it promptly if signs of aging, cracking, etc. are found, without waiting for glue leakage to occur before handling, which can reduce production failures.

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