Hot nozzle core structure special for black material
A technology of black material and nozzle core, which is applied in the field of hot runner hot nozzles, can solve problems such as wire drawing, salivation, and increased product defect rate, and achieve the effect of simple structure, balanced internal and external temperatures, and difficult wire drawing
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[0019] Examples:
[0020] Such as figure 2 As shown, a hot nozzle core structure dedicated to black material includes a nozzle core 1, a runner 2 communicating with the nozzle body, and the end of the nozzle core 1 is used as a gate for the color material to flow out 3; The gate 3 is provided with a grid 4 transversely. The "lateral" refers to the "longitudinal" direction along the cross section of the gate relative to the direction in which the gate communicates with the runner.
[0021] The grille 4 is a knife-edge grille. The grid 4 is a frame made of a group of parallel grid bars, or a single grid bar. When the grid is a frame made of a group of parallel grid bars, the frame-type grid divides the gate 3 into a plurality of branch openings. When the grid is a grid, the grid divides the gate 3 into two shunts.
[0022] Since the present invention adds a knife-edge grid at the gate, the knife-edge grid can be a frame made of a set of parallel grids, or a single grid, so that t...
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