Suggestions On The Maintenance Of Injection Molds

Compared with other moulds, the structure of injection moulds is more complex and precise , the operation and maintenance of the product requirements are higher, so in the entire production process, the use of positive solutions and careful maintenance, maintenance to maintain the normal production of enterprises, improve the efficiency of enterprises, has a very important significance.

 

  1. Select the appropriate molding equipment, determine the reasonable process conditions, if the injection molding machine is too small to meet the requirements, too large and energy waste, and will be due to the molding force adjustment is not appropriate to damage the mold or template, while reducing efficiency.
    Select the injection machine, should be based on the maximum injection volume, the effective distance of the lever, the template on the mold mounting size, the maximum die thickness, the minimum die thickness, template stroke, ejection mode, ejection stroke, injection pressure, clamping force and other aspects of verification, drips foot requirements can be used. Reasonable determination of process conditions is also one of the correct use of mold content, clamping force is too large, injection pressure is too high, injection rate is too fast, mold temperature is too high will cause damage to the service life of the mold.
  2. After the mold is loaded with the injection machine, the air mold operation should be carried out first. Observe whether the operation of each part of the movement is flexible, whether there is abnormal phenomenon, the top out of the stroke, open the itinerary is in place, the mold when the type of surface is in close compliance, the pressure plate screws are tightened and so on.
  3. After the mold is loaded with the injection machine, the air mold operation should be carried out first. Observe whether the operation of each part of the movement is flexible, whether there is abnormal phenomenon, the top out of the stroke, open the itinerary is in place, the mold when the type of surface is in close compliance, the pressure plate screws are tightened and so on.
  4. Sliding parts on the mold, such as guide column, return needle, putter, core, etc., to observe at any time, regular inspection, timely scrub and add grease, especially in the summer temperature is high, each class at least two times oil, to ensure that these sliding parts movement flexible, to prevent tight bite to death.
  5. Every time you lock the mold, you should pay attention to whether the cavity is clean, absolutely do not leave residual products, or any other foreign bodies, cleaning strictly prohibited the use of hard tools to prevent the touch of the cavity surface.
  6. Cavity surface has special requirements of the mold, surface roughness Ra is less than or equal to 0.2cm, absolutely cannot be hand wipe or cotton wire wipe, the application of compressed air blowing, or with advanced napkins and advanced skimmed cotton dipped in alcohol gently wipe.
  7. Cavity surface has special requirements of the mold, surface roughness Ra is less than or equal to 0.2cm, absolutely cannot be hand wipe or cotton wire wipe, the application of compressed air blowing, or with advanced napkins and advanced skimmed cotton dipped in alcohol gently wipe.
  8. Operation away need temporary shutdown, should be closed on the mold, do not let the cavity and core exposed, to prevent accidental damage, downtime is expected to exceed 24 hours, to the cavity, core surface spray rust resistant oil or release agent, especially in wet areas and rainy season, the time is short also to do anti-rust treatment. The water vapor in the air will reduce the surface quality of the mold cavity When the mold is used again, the oil on the mold should be removed, wiped clean before it can be used, there is a mirror requirements for cleaning compressed air blowing dry and then blowing dry with hot air, otherwise it will seep out in the molding and make the product defects.
  9. After the temporary shutdown power on, after opening the mold should check whether the slider limit is moved, no exception found to fit the mold. In short, must be careful before starting the boot, not careless.
  10. In order to extend the service life of the cooling water channel, in the mold stop, should immediately use compressed air to remove the water in the cooling water channel, with a small amount of oil into the mouth of the nozzle, and then with compressed air blowing, so that all cooling pipes have a layer of anti-rust oil layer.
  11. In the work of careful inspection of the working status of the control components, to prevent abnormal auxiliary system, heating, control system maintenance is particularly important for hot runner mold. At the end of each production cycle, rod heaters, belt heaters, thermocouple Ouyun should be measured and compared with the technical instructions of the mold to ensure that their functions are intact. At the same time, the control loop may be tested by a ammeter installed in the loop. The oil in the hydraulic cylinder used for core pumping is emptied as far as possible, and the nozzle is sealed so as not to leak or pollute the surrounding environment during the storage and transportation process.
  12. In production to hear the mold issued a different sound or other abnormal conditions, should be immediately shut down to check. Mold maintenance personnel on the workshop in the normal operation of the mold to carry out a roving inspection, found that there are abnormal phenomena, should be dealt with in a timely manner.
  13. Operators in the handover, in addition to the handover of production, process critical key records, the use of mold should also have a detailed explanation.
  14. When the mold to complete the production quantity, to replace other molds, the mold cavity should be coated with anti-rust agent, the mold of its accessories sent to the mold maintenance agent, and attached to the last mold production of qualified products as a sample to send to the maintenance agent. In addition, should also send a mold use list, detailed to fill out the mold on what machine, from a certain year a certain day, a total number of products produced, now the mold is good. If there is a problem with the mold, to fill in the use of the mold on what problems, put forward the specific requirements of modification and improvement, and hand over a mold untreated samples to the keeper, leaving the mold repair mold reference.
  15. Should set up a mold library, set up a personal management, and the establishment of mold files, if possible, the mold to implement Computer Management. Mold Library should choose moisture small ventilation Place, temperature should be kept below 70%, if the humidity is more than 70%, then the mold is easy to rust, mold should be stored on the shelves, pay attention to anti-corrosion, dustproof and so on. Mark the marking that needs to be repaired or completed for repair or maintenance.

About JasonMould Industrial Company Limited

Jasonmould is a China mold maker of plastic molds- injection mold, die casting moulds, plastic blow molding, rotational molding, medical plastic injection molding, two shot plastic injection molding, insert molding, overmolding, metal injection molding, micro injection molding, powder injection molding, ceramic injection molding, liquid injection molding, husky injection molding, household mold, casting mold, die mold tool, custom molds, china moulds, rapid prototyping tooling, plastic prototyping tooling, punch press tooling, die and tooling for mobile/ cell phone parts, automotive parts, vacuum cleaners, rechargeable tools, telephones, copiers, computers, multimedia speakers, and many other electronic products and household appliances. And also a plastic product manufacturer, mold manufacturer China– plastic parts, plastic water tank, plastic balls, plastic containers, plastic buckle, plastic anchor, plastic hanger, plastic spoon, plastic pipe fitting, plastic tumble, plastic tableware, plastic cups, plastic bottles, plastic tray, plastic cosmetic container, plastic case, plastic food container, plastic chairs, plastic caps, plastic cap closure, plastic tubes, plastic water pipes, plastic knobs, plastic tubing, plastic utility boxes, plastic racks and so on.

Contact:
Person: James Yuan
Company: JasonMould Industrial Company Limited
Add:  LongGang Village,LongXi Town,BoLuo County,HuiZhou City,GuangDong Province, China
Tel: 86-752-6682869
Email: james@jasonmolding.com

Site: https://www.jasonmolding.com/company/

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