Auto Mould
1、The basic principle of 2K mould design:
(1) Hard rubber do 1 time, soft rubber do 2 times;
(2) Transparent do 1 time, non-transparent do 2 times;
(3) Plastics with high moulding temperature do 1 time, and those with low moulding temperature do 2 times.
Auto mould is the basic principle of 2K mould, otherwise the mould will be white; In addition, sealing with broken sealant as far as possible, not with broken sealant, even if it is recommended to modify the product as far as possible for the broken sealant.
2、Plastic 2K mould mould guide pillar guide sleeve must be symmetrical up and down, front and rear mould symmetry.
3、Plastic 2K mould after the mould to rotate 180 degrees, the front mould does not move.
4、Product spacing must be based on the spacing of the injection moulding machine gun nozzle, some foreign 2K injection moulding machine gun nozzle spacing adjustable, some non-adjustable, domestic non-adjustable.
5、Two independent ejector system, the top stick is also two. Plastic 2K mould after the mould two products are the same, the ejector pin are the same, is a rotational relationship, can not be made into a translational relationship.
6、Plastic 2K mould ejector plate can only be reset by spring, can't be forced to reset by screws, because the rear mould has to rotate.
7、Plastic 2K mould side locks must be in the centre of the four sides of the mould, and the front and rear mould symmetry, otherwise when the rear mould rotates 180 degrees and the front mould can not be right.
8、If the spacing of the feed point and the injection moulding machine gun nozzle spacing is different, the top stick hole should be made into a waist type, because the injection moulding machine top stick spacing is not adjustable. Note that most of the domestic 2K injection moulding machine injection nozzle is not adjustable.