0086-13957616917
STRENGTH
R:
Injection mold maintenance
Q:
Injection mold as the most important molding equipment for injection molding products processing, its quality is directly related to the quality of products. Moreover, because the mold occupies a large proportion in the production cost of injection molding enterprises, its service life directly affects the cost of injection molding products. Therefore, to improve the quality of injection mold, and maintain and maintain well, extend its service life, is an important subject of injection product processing enterprises to reduce cost and increase efficiency.
Injection molding products processing enterprises due to the variety of products, mold replacement is more frequent, after the completion of a production cycle, the mold is generally stored until the next production cycle to take out the use. But some processing enterprises do not pay enough attention to the preservation of the mold, so that the mold in the preservation period of rust, surface finish decline and other phenomena, resulting in product quality decline, high rejection rate, some molds are even difficult to reuse, need to re-invest a lot of money in another new mold, causing a great waste. Data show that use and maintenance account for 15% ~ 20% of the factors affecting the service life of the mold. The service life of the injection mold can generally reach 800,000 times. Some well-maintained molds abroad can even be extended by 2 ~ 3 times. But domestic enterprises due to neglect maintenance, injection mold service life is relatively short, only equivalent to foreign 1/5 ~ 1/3. Due to the short service life of the mold, the steel processing time and energy waste, as well as the impact on product quality, the loss of billions of yuan every year. Therefore, the maintenance of injection mold is very important.
Injection mold technology content is very high, a variety of parts, if in the process of use do not pay attention to the maintenance and maintenance of various parts, easy to damage, corrosion phenomenon, causing tens of thousands or even millions of yuan of economic losses. Therefore, special attention should be paid to the maintenance and maintenance of the mold in the process of use, so as to ensure the long-term use quality of the mold. To this end, processing enterprises should first equip each pair of mold with a resume card, record and statistics its use and damage situation in detail, according to which parts, components have been damaged, wear degree, in order to provide information to find and solve the problem, as well as the mold forming process parameters, product materials, in order to shorten the mold test time, improve production efficiency.
Secondly, the processing enterprise should be in the injection molding machine, the normal operation of the mold, test the performance of the mold, and the size of the final molding plastic parts measured out, through this information can determine the current state of the mold, find out the cavity, core, cooling system and parting surface damage, according to the information provided by the plastic parts, can judge the damage state of the mold and maintenance measures.
Thirdly, we should focus on tracking and testing several important parts of the mold. The role of ejecting and guiding parts is to ensure the opening and closing movement of the mold and the ejecting of the plastic parts. If any part of the mold is stuck due to damage, it will lead to production suspension. Therefore, it is necessary to check whether the ejecting rod, guide pillar and so on have deformation and surface damage. After the completion of a production cycle, the moving and guiding parts should be coated with anti-rust oil. Special attention should be paid to the protection of bearing parts with gear and rack molds and the elastic strength of spring molds to ensure that they are always in the best working condition. In addition, the cleaning of cooling channel is of great importance to production efficiency and product quality. As the production time continues, the cooling channel is easy to deposit scale, rust, silt and algae, so that the cooling channel section becomes smaller, the cooling channel becomes narrower, greatly reducing the heat exchange rate between the coolant and the mold, and increasing the production cost of the enterprise, so the cleaning of the flow channel should pay attention to. For the hot runner mold, the maintenance of heating and control system is conducive to preventing the occurrence of production failures, so it is particularly important. Therefore, after the end of each production cycle, the belt heater, rod heater, heating probe and thermocouple on the mold should be measured by ohmmeter. If there is damage, it should be replaced in time, and compared with the mold resume, so that problems can be found timely and countermeasures can be taken.
Fourth, we should pay attention to the surface maintenance of the mold, which directly affects the surface quality of the product. The key is to prevent rust. When the mold has completed the production task, the residual injection molding should be carefully removed by different methods according to different injection molding. The residual injection molding and other sediment in the mold can be removed by copper rod, copper wire and soapy water, and then air dry. Do not clean iron wire, steel bar and other hard objects, so as not to scratch the surface. If there are corrosive rust spots caused by injection molding, use a grinder to grind and polish, and coated with rust prevention oil, and then place the mold in a dry, cool, dust free place for storage.
A pair of mold after good maintenance and maintenance, can shorten the mold assembly, test time, reduce production failures, make the production run smoothly, ensure product quality, reduce waste loss, and reduce the enterprises operating costs and fixed assets investment, when the next production cycle begins, the enterprise can successfully produce qualified products. Therefore, for injection molding products processing enterprises, in the current situation of fierce market competition, well-maintained molds can help enterprises.
Injection molding products processing enterprises due to the variety of products, mold replacement is more frequent, after the completion of a production cycle, the mold is generally stored until the next production cycle to take out the use. But some processing enterprises do not pay enough attention to the preservation of the mold, so that the mold in the preservation period of rust, surface finish decline and other phenomena, resulting in product quality decline, high rejection rate, some molds are even difficult to reuse, need to re-invest a lot of money in another new mold, causing a great waste. Data show that use and maintenance account for 15% ~ 20% of the factors affecting the service life of the mold. The service life of the injection mold can generally reach 800,000 times. Some well-maintained molds abroad can even be extended by 2 ~ 3 times. But domestic enterprises due to neglect maintenance, injection mold service life is relatively short, only equivalent to foreign 1/5 ~ 1/3. Due to the short service life of the mold, the steel processing time and energy waste, as well as the impact on product quality, the loss of billions of yuan every year. Therefore, the maintenance of injection mold is very important.
Injection mold technology content is very high, a variety of parts, if in the process of use do not pay attention to the maintenance and maintenance of various parts, easy to damage, corrosion phenomenon, causing tens of thousands or even millions of yuan of economic losses. Therefore, special attention should be paid to the maintenance and maintenance of the mold in the process of use, so as to ensure the long-term use quality of the mold. To this end, processing enterprises should first equip each pair of mold with a resume card, record and statistics its use and damage situation in detail, according to which parts, components have been damaged, wear degree, in order to provide information to find and solve the problem, as well as the mold forming process parameters, product materials, in order to shorten the mold test time, improve production efficiency.
Secondly, the processing enterprise should be in the injection molding machine, the normal operation of the mold, test the performance of the mold, and the size of the final molding plastic parts measured out, through this information can determine the current state of the mold, find out the cavity, core, cooling system and parting surface damage, according to the information provided by the plastic parts, can judge the damage state of the mold and maintenance measures.
Thirdly, we should focus on tracking and testing several important parts of the mold. The role of ejecting and guiding parts is to ensure the opening and closing movement of the mold and the ejecting of the plastic parts. If any part of the mold is stuck due to damage, it will lead to production suspension. Therefore, it is necessary to check whether the ejecting rod, guide pillar and so on have deformation and surface damage. After the completion of a production cycle, the moving and guiding parts should be coated with anti-rust oil. Special attention should be paid to the protection of bearing parts with gear and rack molds and the elastic strength of spring molds to ensure that they are always in the best working condition. In addition, the cleaning of cooling channel is of great importance to production efficiency and product quality. As the production time continues, the cooling channel is easy to deposit scale, rust, silt and algae, so that the cooling channel section becomes smaller, the cooling channel becomes narrower, greatly reducing the heat exchange rate between the coolant and the mold, and increasing the production cost of the enterprise, so the cleaning of the flow channel should pay attention to. For the hot runner mold, the maintenance of heating and control system is conducive to preventing the occurrence of production failures, so it is particularly important. Therefore, after the end of each production cycle, the belt heater, rod heater, heating probe and thermocouple on the mold should be measured by ohmmeter. If there is damage, it should be replaced in time, and compared with the mold resume, so that problems can be found timely and countermeasures can be taken.
Fourth, we should pay attention to the surface maintenance of the mold, which directly affects the surface quality of the product. The key is to prevent rust. When the mold has completed the production task, the residual injection molding should be carefully removed by different methods according to different injection molding. The residual injection molding and other sediment in the mold can be removed by copper rod, copper wire and soapy water, and then air dry. Do not clean iron wire, steel bar and other hard objects, so as not to scratch the surface. If there are corrosive rust spots caused by injection molding, use a grinder to grind and polish, and coated with rust prevention oil, and then place the mold in a dry, cool, dust free place for storage.
A pair of mold after good maintenance and maintenance, can shorten the mold assembly, test time, reduce production failures, make the production run smoothly, ensure product quality, reduce waste loss, and reduce the enterprises operating costs and fixed assets investment, when the next production cycle begins, the enterprise can successfully produce qualified products. Therefore, for injection molding products processing enterprises, in the current situation of fierce market competition, well-maintained molds can help enterprises.
Copyright@2022-2023 HUSKO Mould Co.,LTD.
浙ICP备11026135号-3
