Basic Knowledge Of Injection Mold

2022-02-22

The phrase "Mold is the mother of industry" is familiar to everyone. The importance of mold is increasingly recognized by people, and great progress has been made in mold design and mold manufacturing technology.


The innovation of mold processing technology, the wide application of various new mold materials, the standardization and specialization of mold parts, etc., all force us to be faster in design and more adaptable to the development of molds.


The improvement of speed requires that the design section can be completed in a few days to the post-processing section; the improvement of accuracy requires that the processing method of each part should be clearly considered in the design process, and the processing method with high precision and low processing cost should be used as much as possible.


The improvements in accuracy and speed supplement each other. The improvement of the speed will inevitably require the improvement of the precision; the improvement of the precision will inevitably lead to the improvement of the speed as well.


1. Hot runner system

Basic Knowledge Of Injection Mold(图1)

2. Lifter hook mechanism

Basic Knowledge Of Injection Mold(图2)

3. Sleeve ejection mechanism

Basic Knowledge Of Injection Mold(图3)

4. Slider outer hook mechanism

Basic Knowledge Of Injection Mold(图4)

5. Internal thread automatic screw-out demolding mechanism

Basic Knowledge Of Injection Mold(图5)

6. Three-plate mold, pin point gate, sleeve ejection mechanism

Basic Knowledge Of Injection Mold(图6)

7. Side wall latent feeding mechanism

Basic Knowledge Of Injection Mold(图7)

8. Insert molding mechanism

Basic Knowledge Of Injection Mold(图8)

9. Thimble latent feeding mechanism

Basic Knowledge Of Injection Mold(图9)

10.Hub barb mechanism

Basic Knowledge Of Injection Mold(图10)

11. Injection molding machine workflow

Basic Knowledge Of Injection Mold(图11)

Basic structure of plastic mold


According to the overall functional structure, the plastic mold can be divided into: guiding system, supporting system, forming part system, gate system, cooling system, ejecting system and exhaust system.


Definition: The plastic flow channel in the mold from the nozzle of the injection machine to the cavity. It consists of main channel, branch channel, injection gate and cold-slug.