First, the purpose:
So that equipment can maintain the best performance status and extend the service life, to ensure the normal production.
two. Scope of application:
For mold maintenance and repair.
three. Regular inspection, maintenance:
Need to be repaired by the mold, the upper and lower mold staff for regular maintenance and inspection.
1. Daily routine inspection and maintenance:
1.1 Whether the mold in operation is in the normal state
a. Whether there is low-voltage mode-locked protection;
b. Activities such as guide column, mandrel, line wear and tear, lubrication is good? Requires at least 12 hours to add an oil, the special structure to increase the number of refueling.
c. The mold of the fixed template of the screw and the clamping clamp is loose;
1.2 production of normal conditions: check whether the product defects and mold;
1.3 under the machine to conduct a comprehensive inspection of the mold and anti-rust treatment: wipe dry cavity, core, the top of the body and the location and other parts of the water and spray mold rust or smear butter.
1.4 under the machine after the mold to be placed in the designated location and make a record: (1) mold status: intact or to be repaired. (2) when the mold when the rust treatment.
2. Quarterly check:
Mainly on the placement of more than two months did not use the mold to clean up maintenance.
2.1 open the mold, check the internal anti-rust effect, there are abnormal circumstances, to be re-rust treatment. Long-term use of the mold to be coated with butter.
2.2 put it back in place and make a record.
four. Maintenance Note:
1. Non-professional maintenance personnel or without professional maintenance personnel to allow, not self-mold repair.
2. The production process of a small fault, transfer personnel can be resolved according to the situation. Such as: 2.1 into the plastic mouth sticky mold: the application of copper needle at the feed mouth at the knock, can not be used steel and other hard objects beat the mold. 2.2 cavity slightly die marks, according to the cavity of the finish to select the polishing material.There are not used sandpaper and other polishing materials, generally dipped in diamonds with diamond brush or diamond paste, by the professional maintenance staff to complete. 2.3 product sticky mold: generally covered with hot plastic products and the top of the site, to be cooled after the top out. Do not damage the mold surface with fire.
3. Professional maintenance mold, not free to change the structure, need to change the structure subject to the consent of the quality engineering department before proceeding.
4. To ensure the quality of maintenance, select the appropriate equipment, materials, tools and methods to solve the problem, the fastest speed to complete.
Fives. Quality Records:
1. Injection molding machine and mold maintenance records.
First, the purpose:
1.1 to regulate the use and maintenance of plastic injection molds to reduce the damage to the mold to ensure that the quality of products to meet customer needs.
Second, the responsibility
2.1 This standard must be trained through the training of qualified technical staff 2.2 injection collar is responsible for the implementation and inspection supervision, in charge of regular supervision.
Third, the injection mold maintenance content is divided into:
1.0 mold before the production of maintenance
1.1 to the surface of the mold on the oil, rust clean clean mold cooling water hole whether there is a foreign body, whether the water barrier nowhere.
1.2 Check whether the arc in the mold sleeve is damaged, whether there is any foreign matter, whether the moving parts are abnormal or not.
2.0 mold maintenance in production
2.1 Check the mold all the guide pillars, guide sleeve is damaged, including the mold guide column. Position and other parts, regular refueling maintenance, daily maintenance work twice.
2.2 Clean the mold parting surface and the exhaust tank of foreign body glue, foreign body, oil and so on and check the mold thimble is abnormal and regular oil. Parting surface, runner surface cleaning twice a day. Guide the tip, bush, position to determine the tip of the oil once a day.
2.3 regularly check the mold of the waterway is smooth, and all the fastening screws to fasten.
2.4 Check the mold limit switch is abnormal, oblique pin. Slanting is abnormal.
3. Maintenance of downtime mold
3.1 before the shutdown must first turn off the cooling water, blowing the water within the mold of the remaining water, check the surface of the mold whether there is residual plastic wire, foreign matter, etc. to clean it even after spraying rust inhibitor, accurate fill in the relevant records.
Fourth, the maintenance of plastic mold management points
Mold maintenance management focus, the main maintenance items are:
1. Mold PL surface, mold point, heart surface and other parts of the clean,
2. The movement of the mold part of the lubrication, the relaxation of the bolt fastening,
3. Cooling water hole rust, electrical parts of the disconnection check
Continuous production should be carried out in the production of regular maintenance, intermittent products in a mass production must be shut down maintenance, to make it in the best maintenance state.
Mold maintenance should be carried out daily maintenance and regular maintenance, are in accordance with the “mold maintenance and maintenance”, and “mold maintenance checklist” to confirm and make, and then each mold production recorded in the record table, this record is The history of the mold records, in the future check on a great help. Maintenance of the main point is that the fixed frequency and time in the fixed, carefully implement the mold maintenance management. “It is not to repair the accident immediately after the accident, but to prevent the occurrence of the accident.”
Injection mold management
Test mode refers to the mold after the initial installation of the experimental stamping or embryo to assess the performance of the mold and the quality of the embryo. How to control and manage the different test application, the development of the corresponding test plan, by the injection of uniform arrangements for trial planning.
Test mode notice: try mode notice is to remind the participating departments, personnel to do the appropriate preparation work in order to be able to arrange a reasonable test work, including the notice to participate in the test department, mold number, plastic parts number, test date, The number of molds, the number of molds, the type of test mold, the cost of test mode, the status of test mode, mold data and other information.
Mold / change management: the system provides mold, change the processing tasks such as management, according to the processing tasks to be arranged to optimize the mold workshop to rationalize the production schedule, and plan the processing of the required costs, hours , Personnel and equipment to ensure that the processing tasks can be successfully completed.
Test mode report: After the completion of the test mode, the need for quality inspection departments issued a test report, reflecting the trial process in the process of various situations, including mold injection and plastic parts defects, and indicate the model number, mold number, Plastic parts name, the reasons for the test, the number of trial mode, test mode date, plastic parts batch, test machine and other details.
Mold test pass rate: test pass rate reflects the number of mold test mode, as well as the success rate of mold test mode, is a measure of mold processing division and design department of an important technical indicators.
Mold acceptance management: mold in the test after the success of the customer to confirm the test results, and acceptance of mold acceptance of qualified single. Customer acceptance of the mold acceptance report to be assessed from the following aspects: the quality of plastic parts, mold performance, technical documents (model), delivery and so on. Mold base file: the name of the mold, cavity, assembly drawings, product drawings and related requirements and technical instructions (test or original samples, materials and shrinkage, assembly requirements, volume); mold state (normal, , Failure, damage, scrapped).
Mold test mode record: mold test mode record the main record mold mold test date, test mold personnel, test mode, test equipment, test materials, test mode conditions, test sample, quality inspection report.
Mold acceptance records: mold acceptance of the main record of the mold acceptance process, including the acceptance of personnel, acceptance date, acceptance location, acceptance model, test mode report, mold status and acceptance of technical quality.
Mold into the factory (storage) records: mold storage records recorded the mold into the factory (storage) situation, including storage date, supplier name, address, zip code, contact telephone and person in charge.
Mold matching machine: mold matching machine records the mold to match the corresponding model, including its specifications, name, performance, the top way, the installation area, the maximum molding pressure, clamping force, injection volume and so on.
Mold maintenance records: mold maintenance records mainly record the maintenance of the mold number, name, date, personnel state, after the maintenance of test records and precautions.
First, the purpose: