How to carry out annual maintenance of hot runner plastic mold
The hot runner mold is also the same as all the machines and equipment. It has a service life and needs to be maintained. The service life of the hot runner mold depends not only on the mold material, manufacturing process, etc., but more importantly, proper maintenance. So what are the basic maintenance methods, and if maintenance measures are taken? This is the key and important. There are many basic maintenance methods for the hot runner mold. Here are 8 maintenance explanations: 1. Look at the venting hole for rust or moisture: if there is rust near the hot runner vent Or if it is wet, there is a possibility of internal condensation or a broken pipe. Moisture can cause a fatal short circuit in the heater and damage to the heater. If the hot runner mold is turned off at night or on weekends, it won't stop running all year round, and the chance of this condensation will be much greater. 2. Be careful not to clean the hot mouth at the gate: There is a small piece of stainless steel "target=_blank> stainless steel at the nozzle nozzle, which may be a point nozzle assembly. If you clean up what seems to be obstructing, it will often destroy the heat. Mouth. In order not to damage the hot mouth, please confirm the type of mouth of the hot runner system before taking action, to ensure that all operators are well trained and can identify all the different types of hot mouth that they are in contact with. 3. Skid stop: For For machines that run all year round, this work is best done once a week. (Maybe some companies can't do it.) It's a good time at the end of the year, and these parts must be routinely lubricated and maintained. The resistance value of the heater: If the resistance value has been measured when the heater is first used, it is time to measure and compare it again. The resistance value has a 10% fluctuation, so it is necessary to replace the heater to ensure It doesn't go out at a critical moment in the production process. If you have never measured the initial resistance, measure it now and get it. The value is used as a reference for future inspections of the heater. 5. Look for signs of wear between the guide post and the guide sleeve: Look for signs of scratches or scratches, which are due to lack of lubrication. Just appearing, you can extend the life of the guide post and the guide bush by adding more lubrication. If the wear is already serious, replace the new part. Otherwise, the cavity and the core part may not fit well, resulting in zero. The wall of the component chamber is thin and thick. 6. Check the water transport condition: connect a hose at the waterway outlet to allow water to pass through the water pipe to the bucket. If the water flowing out is not clear or there is color, there may be rust. And if the water flow is not smooth, it means that somewhere is blocked. If you find these problems, all the water pipes will be drilled again to ensure smooth flow (or take any method you use most often.) Improving the plant's water treatment system can prevent future occurrences. Various problems caused by rust and blockage 7. Cleaning the thimble: After one year, the thimble becomes dirty due to gas accumulation and membranous impurities. Clean it with a mold cleaner every six to twelve months. After cleaning, apply a layer of lubricant to the thimble to prevent scratching or breakage. 8. Check the radius of the hot nozzle for fractures: Fracture It is caused by the clamping force of the loose and hardened plastic fragments remaining in the hot nozzle of the machine from the plastic injection cylinder assembly during the forward injection molding. The cause of the problem may also be that the center line is not aligned. Consider these two possibilities when breaking, if the damage is so severe that it does not prevent petal-like leaks (a term used by mold users in the past: refers to plastic leaks between the guide sleeve and the hot mouth of the machine), The sprue bushing should be replaced. The above suggestions will help you identify and prevent potential problems and ensure that your molds are always running at their best.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
The hot runner mold is also the same as all the machines and equipment. It has a service life and needs to be maintained. The service life of the hot runner mold depends not only on the mold material, manufacturing process, etc., but more importantly, proper maintenance. So what are the basic maintenance methods, and if maintenance measures are taken? This is the key and important. There are many basic maintenance methods for the hot runner mold. Here are 8 maintenance explanations: 1. Look at the venting hole for rust or moisture: if there is rust near the hot runner vent Or if it is wet, there is a possibility of internal condensation or a broken pipe. Moisture can cause a fatal short circuit in the heater and damage to the heater. If the hot runner mold is turned off at night or on weekends, it won't stop running all year round, and the chance of this condensation will be much greater. 2. Be careful not to clean the hot mouth at the gate: There is a small piece of stainless steel "target=_blank> stainless steel at the nozzle nozzle, which may be a point nozzle assembly. If you clean up what seems to be obstructing, it will often destroy the heat. Mouth. In order not to damage the hot mouth, please confirm the type of mouth of the hot runner system before taking action, to ensure that all operators are well trained and can identify all the different types of hot mouth that they are in contact with. 3. Skid stop: For For machines that run all year round, this work is best done once a week. (Maybe some companies can't do it.) It's a good time at the end of the year, and these parts must be routinely lubricated and maintained. The resistance value of the heater: If the resistance value has been measured when the heater is first used, it is time to measure and compare it again. The resistance value has a 10% fluctuation, so it is necessary to replace the heater to ensure It doesn't go out at a critical moment in the production process. If you have never measured the initial resistance, measure it now and get it. The value is used as a reference for future inspections of the heater. 5. Look for signs of wear between the guide post and the guide sleeve: Look for signs of scratches or scratches, which are due to lack of lubrication. Just appearing, you can extend the life of the guide post and the guide bush by adding more lubrication. If the wear is already serious, replace the new part. Otherwise, the cavity and the core part may not fit well, resulting in zero. The wall of the component chamber is thin and thick. 6. Check the water transport condition: connect a hose at the waterway outlet to allow water to pass through the water pipe to the bucket. If the water flowing out is not clear or there is color, there may be rust. And if the water flow is not smooth, it means that somewhere is blocked. If you find these problems, all the water pipes will be drilled again to ensure smooth flow (or take any method you use most often.) Improving the plant's water treatment system can prevent future occurrences. Various problems caused by rust and blockage 7. Cleaning the thimble: After one year, the thimble becomes dirty due to gas accumulation and membranous impurities. Clean it with a mold cleaner every six to twelve months. After cleaning, apply a layer of lubricant to the thimble to prevent scratching or breakage. 8. Check the radius of the hot nozzle for fractures: Fracture It is caused by the clamping force of the loose and hardened plastic fragments remaining in the hot nozzle of the machine from the plastic injection cylinder assembly during the forward injection molding. The cause of the problem may also be that the center line is not aligned. Consider these two possibilities when breaking, if the damage is so severe that it does not prevent petal-like leaks (a term used by mold users in the past: refers to plastic leaks between the guide sleeve and the hot mouth of the machine), The sprue bushing should be replaced. The above suggestions will help you identify and prevent potential problems and ensure that your molds are always running at their best.
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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