Design Tips of Vacuum Venting Mold

There are some regular venting way which are parting surface venting, insert venting, insert pin venting and well-ventilated steel, but there is a special way is vacumm venting, it will need vacumm machine and radiotube, the mold design and manufacturing way will be different comparing with the regular mold;


图片1.png


There are many advantages of vacuuming venting, but there are some tips should be paid attention:

  1. The vacuuming mold ill e e nin ot which can not connect w the air, all venting slot will be sealed by sealing ring to isolate from outside;
  2. There will be a sealing ring on the parting surface of the vacuuming mold ( as shown in pictur 1 ), its function is to isolate the connection between the cavitynd the outsid;
  3. Except for the connecton between the gate an the cavity the rest of the mold is sealed to prevent air from being carried out during vacuuming;
  4. All ejector pin and ejector rod should be sealed by sealing ring ( as shown in picture 2 );
  5. All the inserts and the bottom of the insertneed to be sealed by sealing ring;
  6. A vacuum solenoid valve control switch should be added to the mold;
  7. After the mold is closed, the vacuum system starts to pumping function before mold injection.

图片2.png


Tags: Injection Mold | Injection Mold Supplier | Injection Mold Factory | Mold Factory | Mold Supplier | Injection Molding |
Related News about USM Injection Mold
  • Venting insert design of molded parts

    Venting insert design of molded parts

    Mar 13, 2022In the thin-walled cavity, the end of the melt flow, the bottom of the blind hole of the mold cavity, the end of the solid column of the plastic part, the bottom of the plastic part rib and screw...view
  • Vacuum venting mold design for plastic molded parts

    Vacuum venting mold design for plastic molded parts

    Mar 23, 2022There are some regular venting way which are parting surface venting, insert venting, insert pin venting and well-ventilated steel, but there is a special way is vacumm venting, it will need vacumm...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
  • Design principles of plastic injection mold runner system

    Design principles of plastic injection mold runner system

    Jan 6, 20221. Quality first The design of the gating system has a big influence on part quality, firstly the gate should be set at the easiest part of the plastic part to be removed, and at the same time, the...view
  • The T slot of slider and guider designing tips

    The T slot of slider and guider designing tips

    Dec 18, 20231. The T slot of slot should be designed according to the picture 1, If there is a relatively high slider, the slider T slot is not high enough which will cause the center of gravity to be unstable,...view
  • Side gate of plastic injection mold runner system design

    Side gate of plastic injection mold runner system design

    Jan 23, 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