What does the starting position and time of the transfer pressure of the injection molding machine

The "start position and time of the transfer pressure" of the injection molding machine indicates the time that the material is held under a certain pressure after filling the cavity during injection molding or compression molding. The setting method is to push the screw forward with force.

In plastic injection molding, the melt injected into the cavity will shrink due to cooling, so the screw should continue to move forward slowly, so that the melt in the barrel continues to be injected into the cavity to supplement the need for product shrinkage, the above process is called pressure holding.

Choosing the appropriate holding time and holding pressure can effectively prevent the product from shrinking, and the product production is relatively stable. The appropriate holding method can adjust the size of the product without weld lines, dents, flashes and warping, and achieve ideal product quality control.

The time of injection is changed to the time of holding pressure, depending on the time or position. Set to 5% of the time.

Injection injection section switching pressure holding function:

1. Turn the time to holding pressure, and switch to the holding pressure section after setting the injection time.

2. The position is transferred to the holding pressure, and the injection position is set to switch to the holding pressure section.

3. Turn the pressure to the holding pressure, and switch to the holding pressure section after setting the injection pressure.

4. VP to pressure holding, which can only be found by more advanced injection molding machines, and the default injection pressure and speed of injection molding machine to switch pressure holding to the set position.

That is, the time or position is determined by the time or position when the injection is converted to the pressure holding. If the position is used, the holding position is generally set to about 5% of the storage position.

Here's a little bit of advice to see if it helps you. Let's first understand the meaning of injection pressure and pressure holding. Injection pressure is the pressure generated by the glue feeding process to push the raw material forward.

Pressure holding means that the injection continues to maintain a pressure after the completion of the injection, and the rubber material here is in principle not a force given by the feeding. Therefore, the position of the holding pressure is determined when you no longer have a significant change in position. The function of pressure holding is to continue to give a force to prevent the rubber from flowing back, so as to make the product fuller.

The position and time of the holding pressure are generally based on the position when the machine is designed, and the timing will be started after the completion time of the injection when the position set by the holding pressure is not reached.

It is the conversion method from injection to pressure holding, depending on whether the position of one injection is the standard, or time, or time + position.

The holding time of the automatic injection molding machine should not exceed 5 seconds.

The automatic injection molding machine is a process test instrument used in the fields of material science and mechanical engineering.

Automatic injection molding machines are also known as injection molding machines or injection machines.

It is the main molding equipment for making thermoplastics or thermosets into plastic products of various shapes using plastic molding molds. It is divided into vertical, horizontal, and all-electric type.

The injection molding machine heats the plastic and applies high pressure to the molten plastic, causing it to be injected and fill the mold cavity. It is usually composed of injection system, mold clamping system, hydraulic transmission system, electrical control system, lubrication system, heating and cooling system, safety monitoring system, etc.

The working principle of the injection molding machine is similar to that of the syringe used for injection, which is the process of injecting the plasticized molten state (i.e., viscous flow) plastic into the closed mold cavity with the help of the thrust of the screw (or plunger), and obtaining the product after curing and shaping.

Injection molding is a cyclical process, each cycle mainly includes: quantitative feeding - melt plasticization - pressure injection - mold filling and cooling - mold opening and picking. After removing the part, the mold is closed again and the next cycle is carried out.

Summary. The setting of position and time to pack pressure switch position and time mainly depends on the design requirements of the injection molding product and the performance parameters of the injection molding machine. Generally speaking, the transfer pressure switching position should be before the last action in the injection molding process to ensure the quality of the injection molded product.

The transfer pressure switching time should be determined according to the performance parameters of the injection molding machine, as well as the design requirements of the injection molding product, generally speaking, the transfer pressure switching time should be between seconds and 1 second.

How to set the position and time of the transfer pressure switch of injection molding products, and which ones to set the transfer pressure switching position.

The setting of position and time to pack pressure switch position and time mainly depends on the design requirements of the injection molding product and the performance parameters of the injection molding machine. Generally speaking, the transfer pressure switching position should be before the last action in the injection molding process to ensure the quality of the injection molded product. The transfer pressure switching time should be determined according to the performance parameters of the injection molding machine and the design requirements of the injection molding product.

Fellow, I really didn't understand, I can be more specific.

The first thing to consider when setting the position and time of the transfer pressure is the working principle of the injection molding machine and the characteristics of the injection molding product. Generally speaking, the setting of the position and time of the transfer pressure should be determined according to the working principle of the injection molding machine and the characteristics of the injection molding product. Specifically, the setting of the position and time of the transfer pressure should be determined according to the pressure, temperature, plastic flow rate and other parameters of the injection molding machine, as well as the size, thickness, material and other characteristics of the injection molding product.

If the position and time of the transfer pressure transfer are set incorrectly, it may lead to problems such as unstable quality and even cracking of injection molded products. Therefore, when setting the position and time of switching between the pressure transfer and the pressure transfer, it should be considered comprehensively according to the working principle of the injection molding machine and the characteristics of the injection molding products to ensure the stable quality of the injection molding products. Personal Tips:

When setting the position and time of the transfer pressure, it should be considered comprehensively according to the working principle of the injection molding machine and the characteristics of the injection molding product to ensure the stable quality of the injection molding product. At the same time, the working status of the injection molding machine, as well as the quality of the injection molding products, should be checked regularly to ensure the stable quality of the injection molding products.