Three-dimensional (3D) printing spray head with self-restraint device for cement-based materials
A cement-based material, 3D printing technology, applied in the direction of additive processing, ceramic molding machines, manufacturing tools, etc., can solve the problems of high compressive strength of walls, low shear strength, high energy and material consumption, etc., to achieve enhanced Interlayer bonding strength, increasing the interface bonding area, and solving the effects of cold seams
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[0036] A cement-based material 3D printing nozzle with a self-contained device (such as figure 1 shown), the spray head includes a hopper 1 from top to bottom, a nozzle 2 connected to the bottom of the hopper 1, a rectangular connecting plate 3 arranged below the nozzle 2, and a self-restraining device arranged below the rectangular connecting plate 3; the self-restraining device includes The upper restraint plate 4, the left restraint plate 5 and the right restraint plate 7 distributed on both sides of the restraint plate 4, and the cutout 6 located on the lower surface of the upper restraint plate 4, wherein the upper restraint plate 4, the left restraint plate 5 and the right restraining plate 7 form a self-constraining cavity, the upper restraining plate 4 is fixedly connected with the rectangular connecting plate 3, and on the rectangular connecting plate 3 and the upper restraining plate 4, there is a nozzle corresponding to the nozzle 2 2 holes of the same size.
[003...
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