English
русский
Insert pin of vengting design for molded parts
Insert pin of venting:
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.
The sub gate of the plastic injection mold runner system
Jan 26, 2022In order to get the best injection quality, the gate type must be selected carefully, the coommon gate tyeps are: direct gate, side gate, pin-point gate, sub gate,valve gate of hot runner etc. Among...view
Gate position determination of plastic injection mold runner design system
Jan 17, 2022In the selection of gate location, the following issues should be paid attention to: 1. The gate position should be set at the maximum wall thickness of the plastic part, so that the plastic melt...view
Banana gate of plastic injection mold runner system design
Feb 7, 2022In order to get the best injection quality, the gate type must be selected carefully, the coommon gate tyeps are: direct gate, side gate, pin-point gate, sub gate,valve gate of hot runner etc. Among...view
Five Major Steps of the Injection Mold Production Process
Dec 9, 2021Injection mold manufacturing can be roughly divided into the following steps: Process analysis of plastic products. Before the mold design, the designer should fully analyze and study whether the...view
Parting surface venting of runner system
Mar 10, 2022There are a large amount of gas in the main and sub channel, these gas are discharged through the pull rod (push rod) during injection processing, a part of gas come out from exhaust slot on parting...view
Temperature system of injection mold
Feb 8, 2022Hi everyone,the mold cooling time is the longest during injection, so the design of mold temperature system controlling is very important, we will talk about mold cooling, heating system in following...view