In-mold heating is an automatic mold injection molding process that cuts or breaks the gate before the plastic mold is opened, so as to realize the separation of parts and materials after the plastic mold is opened.

What is the in-mold heat technology of injection parts?

In short, in-mold heat is the automatic separation technology of the material head and the product of plastic parts. A typical in-mold heating system is composed of the following parts: micro ultra-high pressure cylinder, high speed high pressure cutter, ultra-high pressure timing control system, auxiliary parts.

A successful in-mold hot die application project needs to be guaranteed by several links. Among the most important are three technical factors:

1. Control of cutting precision

It is very important to control the precision of cutting tool in the application of in-die hot die. Many product quality problems in the production process are directly caused by the control of cutting precision of the in-die heating system.

For example, the product and the material are not separated after the mold is opened, the raw edge of the product is seriously cut, and the product gate is not clean. Such problems can only improve the machining accuracy of the cutting tool.

2. Tolerance and assembly process of the thermal cutting tool in the die

In the normal production of in-mold heating system, the cutter needs to move back and forth repeatedly, so different plastics adopt different assembly tolerances and assembly processes.

Otherwise, the cutter will be stuck, the cutter cannot be returned, the plastic will flow into the gap between the cutter and the mold assembly, and even the cutter will break. For such problems, we can only find professional and experienced manufacturers to provide professional solutions.

3. Accurate design of in-mold hot mold scheme

For the mold industry, providing an accurate design scheme plays a role of half work. In-mold heat suppliers need to provide the best design scheme for different products and different materials, otherwise there will be a series of problems such as insufficient cylinder strength, continuous cutting of products, and poor return of cutting tools.