Insert pin of vengting design for molded parts

Insert pin of venting:


图片1.png


It is difficult to make exhaust slot when end runner is not in parting surface during injection, and there is no matching gap available, but we could make the venting pin at end of runner side, and also the exhasut slot will be connected with the air in outside as the venting system, there are some tips for making the insert pin as following:

1. The venting pin should fixed with the mold by H7/g6;

2. There should be an exhaust slot on the side of the venting pin and connect with the air (as shown in picture 1);

3. It will be used venting pin when air trapping position is fixed, but it will be better to use venting insert if the air trapping position is changing in local;

4. The sealing area of insert pin will be made according to the size of insert pin, and the length of sealing is 10-20mm, then it can clearance later;

5. The top of insert pin will make 3 snaps to make venting, and the depth is 0.02~0.05mm;

6. Insert pin is changed by injector pin.


Tags: Injection Mold | Injection Mold Supplier | Injection Mold Factory | Mold Factory | Mold Supplier | Injection Molding |
Related News about USM Injection Mold
  • Gas-assisted Injection Molding Equipment

    Gas-assisted Injection Molding Equipment

    Apr 10, 2022The gas-assisted equipment includes a gas-assisted control part and a nitrogen generator, it is special and seperate system of the injection molding machine, and its only interface with the injection...view
  • Plastic molding shrinkage rate

    Plastic molding shrinkage rate

    Dec 30, 2021Plastic parts getting smaller by shrink, due to the temperature decrease during the molding process, and the shrinkage is expressed by the shrinkage rate, it is common plastic shrinkage rates are...view
  • Reasons for making the exhaust system of the injection mold

    Reasons for making the exhaust system of the injection mold

    Feb 28, 2022The gas in the injection mold includes not only the air in the cavity, but also the air in the gate and the decomposition gas generated by the plastic melt, and the steam which caused by plastic in...view
  • USM Blogo Opening

    USM Blogo Opening

    Oct 27, 2021Hello everyone! Our blog is open today, it is very glad to have the opportunity to meet you here, welcome to visit us whenever you need. USM is a professional plastic injection mold and molding...view
  • Comparison of water-assisted and gas-assisted injection molding

    Comparison of water-assisted and gas-assisted injection molding

    May 19, 2022Comparing with water-assisted injection molding technology and gas-assisted injection molding technology, the fundamental difference is the nature of the auxiliary molding media used. One is liquid...view
  • Slider spring hength and strength calculation

    Slider spring hength and strength calculation

    Apr 22, 2024Processing size: 1. ØD2=ØD+2 2. Ll = total spring length (L) - preload value of spring (N) - slider core pulling distance (L2) Spring length calculation: (refer to picture 1 for length calculation)...view