1, inside points mould structure
The structure is within parting injection die design, manufacture, and the domestic difficulty of mastering the technology in mould enterprise the manufacturer had not many. In high-end automobiles in points mould structure by the enterprise, and related technique in domestic mainly Volkswagen primarily. Here in shape more complex bumper as an example, the structure of mould in points. Parting formwork within within subtypes and second launch structure, shown in figure 2. Plastics with the model of location place have cavity upside down the interference, such as 5.5 mm with conventional cant open mold release, and will affect the TAB for plastics precision and damage the mould. To make mould can smooth the mold, oblique push process must be conceded enough space, make plastic parts within the local elastic deformation, thus eliminating the mold smoothly with fixed inclined push block cavity collisions are design key points of the model. Solution:
(1) when open mold in ammonia spring and pull mode button, under the action of fixed model cavities and oblique push block synchronous movement driven, inclined push pull fast exercise with block cavity, is also using ammonia spring push push rod fixation plate and push board, maintain push board and set the relative position of the cavity.
(2) use plastics in the variable shapes, open mold arrived at the scheduled trip, again through oblique push transverse pull fast within blocks to end plastic parts will be pulling, make plastic parts within the terminal from set model in cavity barb.
(3) mould open, plastics and fixed model cavity separation.
(4) continue to release, pushing through the block and limit the function of the guidance of control to pull fast, movement outside molded parts reply original shape.
准的啦