Mould with slider, especially for plastic materials, has slider moved by rack and pinion mechanism connected to driven shaft and gears

摘要

The mould (1), comprising a fixed matrix (2) and a moving die (3) forming a main cavity (4) corresponding to the shape of the article to be made , has at least one slider (6) associated with a pin (7) that forms a secondary cavity (8) in the mould. The slider is moved between active (A) and inactive (D) positions by a rack (13) and pinion (10) mechanism. The mould (1), comprising a fixed matrix (2) and a moving die (3) forming a main cavity (4) corresponding to the shape of the article to be made by injecting a plastic through channels (5), has at least one slider (6) associated with a pin (7) that forms a secondary cavity (8) in the mould. The slider is moved between active (A) and inactive (D) positions by a rack (13) and pinion (10) mechanism, the rack being made on a vertical side wall of an inverted U-shaped lengthwise recess in the bottom of the slider. The pinion (10) is connected by a shaft (17) to a satellite pinion (16) meshing with a drive gear (15).