low pressure mini injection molding machine

How to Control Opening and Closing of Injection Molding Machines

high Injection Molding Machine opening control: Inject molten plastic into the mold cavity until cooling is complete, open the mold, and pull out the product. The process of openness is also divided into three stages. The first stage slowly opens to prevent tearing of the product in the mold.electrict Mini Injection Molding Machine.


The second stage quickly opens to shorten the opening time. The third stage reduces the impact and vibration caused by opening inertia by slowly opening.

Small Injection Molding Machine

desktop Injection molding machine clamping control:

The fixture is a huge mechanical thrust that tightens the mold and prevents plastic from melting during high-pressure injection and injection molding, resulting in a huge mold opening force.

After the safety door is closed, the travel switch sends a signal and the clamping action begins immediately. Firstly, move the template, start at a slower speed, walk forward for a short distance, and then press the originally slower switch to separate the lever pressing block, causing the movable board to quickly rotate forward. As the fixture approaches the end, the pressure rod on the other end of the lever presses the slow switch, and the movable plate slowly rotates again, moving forward under low pressure.

During the low-pressure clamping process, if there are no obstacles between the molds, the high-pressure switch can be used to gently close. Rotating high pressure is used to straighten the machine hinge and complete the clamping action. This distance is very short, usually only 0.3~1.0 mm. One turn of high pressure reaches the end of the clamping limit switch, and then the action stops, ending the mold closing process.

The clamping structure of the machine tool is fully hydraulic and connected to the machine tool. Regardless of the structure, this link will ultimately be completely streamlined to achieve the consolidation of labor. The process of connecting rod stretching is the process of opening holes in the moving plate and tail plate, which is the process of increasing the four bar force.

The magnitude of the clamping force can be known, and the tension clamping force on the hydraulic gauge can rise to its maximum value. If the clamping force is large, the maximum value of the hydraulic system will increase, and vice versa. Small injection molding machines do not have hydraulic gauges installed, so it is necessary to determine whether the mold is truly tightened based on the straightening of the connecting rod.

When the machine shuts down the mold, if the connecting rod is not easily straightened, "almost" straightened, or if one of the pairs of connecting rods is not completely straightened, there will be mold expansion during the injection molding process, and flaps or other problems may occur during the manufacturing process.