The process of plastic molds

Template machining details
1) The number should be uniform and the core should be numbered. Should be consistent with the number on the die frame and in the same direction. It’s not easy to make mistakes when assembling.
2) A/B plate processing (i.e. mobile mold frame processing).
A, A/B plate processing should ensure that the parallel and verticality of the mold frame is 0.02mm;
b. Milling machine: screw hole, water hole, top pinhole, machine hole, angle
C: Fitter: tapping, trimping.
3) Panel machining: milling machine nozzle hole or processing nozzle hole.
4) Top pin fixing plate processing: milling machine: top needle plate and B plate and rear needle connection, B plate facing up, top pin hole from top to bottom drilling. The top pin sink needs to flip the push plate up, correct it, rough it with a drill bit, and then use a milling cutter to get it in place and turn it in angles.
5) Floor processing: milling machine: dashing, correction, pupil, cornering. (Note: Some molds need to be pulled hard to strengthen the top mechanism, such as screw holes in the top needle plate)
Scale inhibitor
To become a comprehensive mold manufacturing enterprises, need to buy a large number of machinery, equipment, equipment, the introduction of professional and technical personnel, which requires a lot of money. The demand for capital size requires other companies to cross a higher threshold when entering the industry. At the same time, precision equipment mold company’s service object is mainly large companies, large companies often have a large scale of business. This requires mold enterprises as an important part of their supply chain, must have a larger scale of production, only when the scale of production can be achieved. Effectively reduce procurement and production costs.
Core processing details
1) Coarse, fly six sides: in the milling machine, to ensure verticality and parallelity, leaving 1.2 mm grinding balance.
2) Rough grinding: large water grinding processing, first grinding large surface, with batch clamping small surface, to ensure verticality and parallelity in 0.05mm, leaving a balance, bilateral 0.6-0.8mm.
3) Milling machine processing: first of all, the milling machine head to correct, to ensure that within 0.02mm, correction and suppression work, first of all, the processing of screw holes, top pin holes, threaded holes, insertion needle coarse, nozzle or nozzle hole, flow cone for the angle. red, and then form a water hole, grinding out the R angle.
4) Machine processing: tapping, coding.
5) CNC roughing: retain the remaining amount.
6) HLC48-52 in an external heating site.
7) Fine grinding, 0.04mm of the base frame for large-scale water grinding, to ensure that the parallelity and verticality within 0.02mm.
8) CNC processing.
9) Electric spark processing.
10) Line cutting (slow line) accuracy is plus or minus 0.005.
11) Save the mold, ensure flatness, control cavity size.
12) Processed into gate, exhaust port, zinc alloy in general, gate opening 0.3-0.5mm, exhaust opening 0.06-0.1mm, aluminum alloy gate opening Degrees 0.5-1.2mm, exhaust opening 0.1-0.2, plastic opening 0.01-0.02, as wide as possible, a little thinner.
The mold industry needs strong technical force. From the product 3D design, to mold production, injection molding, assembly and surface treatment, the process is cumbersome, and these processes affect each other, must be carried out before and after. Therefore, mold processing technology, quality control level and production management technology is very important, need long-term practice and accumulation. At the same time, due to the rapid replacement of plastic products, mold enterprises need to constantly update and improve mold technology, quality control and production management and other aspects.
In the mold manufacturing process, due to design, programming, operation and other errors or errors, may lead to mold and customer samples do not match, resulting in the need for mold repair. In severe cases, it must be redesigned. Mold maintenance will increase the manufacturing costs of mold enterprises and reduce profits. Once the mold must be reprocessed, the mold manufacturer’s order must be lost. Therefore, how to avoid human factors caused by mold repair, reporting damage and rework has become a major problem for mold enterprises. Top priority.
Mold enterprises only through continuous practice and long-term accumulation, in order to continuously improve production management capacity, establish a set of effective process operating standards, reduce the number of repairs, put an end to the phenomenon of re-engineering. And that has to be accumulated over time, not what the new company can have in a short period of time.