1. There are two ways of cooling water for injection molding machines, one is mold cooling, and the other is oil cooling.
2. The water inlet pipe is divided into two paths by tee, and a valve is added on the oil inlet cooler to adjust the water inlet.
3, backwater can be separated or together, the bigger the pipe, the better, is conducive to drainage.
Extended data:
Injection molding machine, also known as injection molding machine or injection molding machine, is the main molding equipment to make thermoplastic or thermosetting plastics into various shapes of plastic products by using plastic molding dies.
Can be divided into vertical, horizontal and all-electric type. The injection molding machine can heat the plastic and apply high pressure to the molten plastic, so that it can be ejected and fill the mold cavity.
Working principle of injection molding machine:
The working principle of injection molding machine is similar to that of injector. It is a process of injecting molten plasticized plastic (that is, viscous fluid state) into a closed mold cavity with the help of the thrust of a screw (or plunger), and curing to obtain a product.
Injection molding is a cyclic process, and each cycle mainly includes: quantitative feeding-melt plasticization-pressure injection molding-mold filling and cooling-mold opening and taking parts. Take out the plastic part, and then close the mold for the next cycle.
Operation items of injection molding machine: Operation items of injection molding machine include control keyboard operation, electric control system operation and hydraulic system operation.
Selection of injection process action, feeding action, injection pressure, injection speed and ejection type, monitoring of temperature in each section of the barrel, adjustment of injection pressure and back pressure, etc.
Process adjustment in production process is a necessary way to improve product quality and output. Because the injection cycle itself is very short, if the process conditions are not well mastered, waste products will emerge one after another.
It is best to change only one condition at a time and observe it several times. If the pressure, temperature and time are all adjusted together, it is easy to cause confusion and misunderstanding, and I don't know why there is a problem.
There are many measures and means to adjust the process. For example, there are more than ten possible solutions to solve the problem of unsatisfactory product injection. Only by choosing one or two major solutions to solve the crux of the problem can we really solve the problem.
reference data
Baidu encyclopedia-injection molding machine