Company News

How we design our twice core-pulling of cavity?

Views : 131
Update time : 2021-01-11 23:36:13
If there is an equally deep rib in the deeper rib, if we only pulled the outer rib, the rib inside may be taken out along with the insert, causing the product to blush or scuff.
Twice core-pulling is to pull out the deep rib part of the inside of the product, then the outer part, and finally open the mold.
As shown in figure 1, in the front mold of the deep ribs inside there is a deeper rib, if we only take out the outer insert, then the deep rib inside will be scuffed, so we need to first pull out the ring of ribs inside, and then cramp a ring of ribs outside.

Design specifications:
1. Open PL1 first, then open PL2, last, open PL3.
2. To ensure that the mold is opened first at the PL1, add a PU or spring-assisted opening between the top clamp plate and the priority core-pulling plate.
3. Must do a stop block between the top clamp plate and the priority core-pulling plate, the stop stroke is equal to the distance of priority core-pulling.
4.It's mandatory to do a stop block between plate A and the priority core-pulling plate, the position of PL 2 will be pulled through the stop pin.
5. Notice the length of the guide pin, after all of the plates are opened, make sure that the guide pin will insert plate B first while shutoff. 
Related News
Read More >>
The features and applications difference between PA6, PA66, PA610, PA12. The features and applications difference between PA6, PA66, PA610, PA12.
Nov .19.2021
From this article, you will know the difference between PA6, PA66, PA610, and PA12, and normally, the different applications.
What is a Lathe machine? Lathe machining parts and functions What is a Lathe machine? Lathe machining parts and functions
Oct .27.2021
From this article, you will know what exactly the lathe is, and the lathe machining parts, functions, the feature of different lathes.
How we improve our machining precision? How we improve our machining precision?
Oct .21.2021
From this article, you will know how we improve our machining precision to satisfy our clients.
What is the difference between 5-axis and 3+2 axis CNC machine? What is the difference between 5-axis and 3+2 axis CNC machine?
Sep .10.2021
Except for the 5-axis CNC linkage machine, there is another 3+2 axis CNC machine, which is different from the 5-axis CNC machine, the 3+2 axis CNC machine can machine complex custom parts but people always seek for 5-axis to machine it which multi-double