How to control mold quality in plastic mold manufacturing

For the production of plastic injection molds, how can we effectively control their quality? To ensure the quality of plastic mold production, the quality control link in production management is very important. We can proceed from the following aspects:

I. Effectively manage product data, process data and drawings. Effective product data management, process data management, and drawing document management can ensure the comprehensiveness of the files and the consistency of the drawing versions, so that the drawings can be effectively shared and effectively used. A complete computer database for file management can be established to collect the design drawings accumulated by the design department, and to collect and use previously scattered and isolated information to prevent the 2D and 3D confusion, original, design, and maintenance versions due to design drawings. Confusion, inconsistency between 3D model and 2D drawing data, problems caused by the irregularity and confusion of 2D drawing design are difficult to be found and corrected in a timely manner, resulting in mold modifications and rework, or even obsolescence, increasing mold manufacturing costs and lengthening mold manufacturing Production cycle affects lead time.

Second, maintain the consistency and completeness of the mold drawings, processing technology and physical data. Through effective, meticulous and rigorous inspection methods, the consistency and completeness of mold drawing, processing technology and physical data are guaranteed.

3. The design and manufacturing costs of each set of molds must be summarized in a timely manner. By effectively controlling the issuance of work vouchers in the workshop, the scrap management of tools is effectively managed; accurate mold structure design, efficient mold part processing, and accurate spare parts detection will effectively reduce molds caused by design changes and maintenance. Additional costs, so as to obtain the actual cost of each set of mold, effectively control the quality of the mold.

4. Overall planning. The information of planning, design, processing technology, workshop production, and human resources are organically organized and integrated for overall planning, so as to effectively coordinate planning and production, which can effectively ensure mold quality and deliver on time.

5. Develop a complete and practical mold production management system. Develop a complete mold production management system to achieve product data management, process data management, plan management, progress management, etc. of the mold production management process. The computer information management system includes mold production plan formulation, mold design, process formulation, Workshop task assignment, product inspection, warehouse management, etc. enable mold manufacturing and related auxiliary information to achieve comprehensive tracking management from planning to completion.

6. Establish failure mode and impact analysis database. Establish a mold design, manufacturing failure mode and impact analysis database, and use conferences, announcements, computer sharing, plus awards and penalties to prevent the next occurrence of the same problem, and also serve as a reference for future quality assessment and design.

7. Establish processing technology establishment. Establish the processing technology formulation, summarize the parts list of molds, the list of purchased parts, the list of standard parts, the list of self-made parts, the list of self-made standard parts, the list of materials, the list of heat-treated parts, the list of consumable parts and the cost of molds. Relevant resources are available in a timely manner. Combining production plan management and schedule management, to ensure that related equipment can be effectively used, to prevent personnel from being idle, and to enable each link in processing and manufacturing to be linked.

8. Establish quality inspection departments and strictly standardize inspection methods. Eliminate the "almost" luck, and ensure the precision of the mold processing of various parts. Effectively controlling the quality of the mold, and effectively linking the quality to the individual according to the up and down process records, can strengthen the design and the sense of responsibility of the operator.

Nine, formulate mold design standards, mold design work instructions. According to the situation of the company and customers, formulate mold design standards, mold design operation instructions, mold manufacturing standards, mold manufacturing operation instructions that are suitable for the company and customers, and regulate mold design and mold manufacturing; Molding thinking to make molds that do not meet customer requirements.

10. Standardize purchases, warehouses and place production orders. Standardize the management of materials in and out of the warehouse, tool loss reporting, delivery management, rationalize the material supply chain, and prevent production disconnection.

Eleven, establish an assessment system. Regular training and assessment of related mold design and mold manufacturing personnel, to discover and cultivate the company's backbone elite team.

Twelve, standardize the functions of each post. Achieve "people do their job, do their best" to prevent people from floating.

13. Establish a follow-up management team for mold projects. Set up a bridge of communication and supervision between “customer-market-engineering-procurement-manufacturing-warehouse-injection” and other departments, carry out detailed affairs and technical communication, comprehensively understand customer's mold technical requirements, record and summarize communication The content is accurately transmitted to all departments, avoiding repeated, repeated, mold testing, modification, rework, thereby saving costs and time.

For each customer, gradually build a knowledge base of customer business and technical information and share it within the company in order to improve customer service levels and reduce errors. Follow up and supervise the production progress of mold projects, arrange mold trials, follow-up of related materials, sample inspection and confirmation, sample delivery, and mold move arrangements.