Ningbo Isutamei bearing co., LTD.
Introduced the structure design of injection mold for automobile rubber cartridge bearing
, the positioning of the framework and the automatic ejection of the
1.Key parts and product technical requirements
of automotive rubber cartridge bearing: the product should have corrected skeleton
position, good compactness and firm bonding between the skeleton and rubber.
Product appearance good quality, less glue edge.
2.Mould structure analysis the mould is produced
on the injection machine with ejection mechanism, and the mould cover template
and middle pallet are respectively fixed on the upper and lower bracket of the
press by connecting strip; The mandrel fixing plate is fixed on the heating
plate under the press. The mould is injected and pressed into glue by the
injection machine in the closing state, so that the product produced has small
glue edge, and the product compactness, appearance quality and dimensional
accuracy are fully guaranteed.
3. When the die is closed in the working
process, the half-die is opened first, and the cover template and middle
template of the die are suspended on the upper and lower brackets of the press
respectively; The mandrel fixed plate and the bottom plate are pushed out to the
correct ejection position of the press together with the lower heating plate of
the press. The skeleton A is positioned through its notch and the raised part
on the mandrel; Skeleton B, C and D are positioned through their outer edges
and mold cavity at the bottom of the mold.
The fixed plate of core die and the bottom
plate are pulled into the press together with the heating plate under the
press, and one die is pressed for vulcanization. In the process of mold
opening, the mold falls with the heating plate under the press, the cover
template and the middle template are opened separately and suspended on the
upper and lower brackets of the press, the core mold fixed plate and the bottom
template fall into place together with the heating plate under the press, and
are pushed out to the correct ejecting position of the press. Starting the
ejection device, the ejector rod jacks up the bottom template to make the
product and core mold come out and take out the product. After removing the
remaining glue edge on the mold, the jacking device is carried out. The press
plate of the jacking device is pressed under the bearing, forcing the bottom
template to return to its position to complete a work cycle.