The selection of the parting surface of the pet toilet mould is not only related to the normal moulding and demoulding of the plastic parts but also affects the structure and manufacturing cost of the mould. Generally speaking, the overall selection principle of the parting surface is to ensure the quality of the plastic parts, facilitate the demoulding of the parts, and simplify the mould structure.

Specifically include the following:

1. The parting surface should be set at the part with the largest section size of the plastic part to facilitate demoulding.

2. It is beneficial to ensure the dimensional accuracy of plastic parts.

3. It is beneficial to ensure the appearance quality of plastic parts. Parting surfaces should be avoided as far as possible on smooth and flat surfaces or arc surfaces.

4. As far as possible to meet the use requirements of injection products.

During the injection moulding process of the pet toilet mould, process defects such as demoulding slope, flash, ejection marks and gate marks are inevitable. When selecting the parting surface, the influence of process defects on the use function of the part should be avoided as much as possible.