Extrusion screw for regenerating waste rubber
A technology for extruding screw and waste rubber, applied in the field of extruding screw, can solve the problems of unsatisfactory material melting effect and little change of screw edge, etc., and achieve the effect of large extrusion force, speeding up flow rate, and maintaining smooth feeding.
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[0020] The present invention will be described in further detail below in conjunction with the embodiments of the drawings.
[0021] Such as Figure 1 to Figure 5 As shown, the extrusion screw used for the regeneration of waste rubber in this embodiment includes a rod body 1 and a spiral edge arranged on the rod body 1. The spiral edge is divided into a feeding section A, a melting section B, a mixing section C and Discharge section D, the melting section B includes a melting section B1, a second melting section B2, a third melting section B3, and a fourth melting section B4. The melting section B1 is composed of N cams 21 arranged along the shaft axis. The top ends of the N cams 21 are connected as a spiral, and the rotation direction of the spiral is the same as that of the feeding section A. The second melting section B2 is a spiral protrusion 22 with an inverted V-shaped projection from the top. The protrusions 22 are evenly distributed on the outer circumference of the rod ...
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