Extrusion device of conical twin-screw extruder special for polyolefine
A conical twin-screw and conical-screw technology, which is applied in the field of extrusion devices of conical twin-screw extruders, can solve the problems of inability to plasticize and knead polyolefin materials, achieve increased pressure, low energy consumption, high yield effect
Inactive Publication Date: 2009-09-16
张家港市杰达机械制造有限公司
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Problems solved by technology
However, it cannot be used to process polyolefin materials, because traditional extrusion equipment cannot plasticize and mix polyolefin materials well
Method used
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[0014] The specific content of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] Such as figure 1 As shown, the extrusion device of the special conical twin-screw extruder for polyolefin includes: a barrel 1, a pair of conical screws are arranged in the barrel 1, and a feed inlet 11 is arranged on the barrel 1. Such as image 3 As shown, each conical screw is provided with a feed section 21, a compression section 22 and a plasticizing and homogenizing section 23 with a total of three sections of flight, and the lead of the compression section 22 flight is 40 to 58 mm. . Such as figure 1 , figure 2 As shown, the position of the feed port 11 corresponds to the feed section 21 on the conical screw 2, wherein the flight length of the compression section 22 is 35% to 45% of the total length of all flight flights on the conical screw, and in the whole The flight of the compression section 22...
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The invention discloses an extrusion device of a conical twin-screw extruder special for polyolefine, which comprises a machine barrel; the machine barrel is provided with a pair of conical screws inside and is provided with a feed inlet; each conical screw is provided with three sections of screw flanks, namely a feeding section, a compression section, and a plastication and homogenization section; the position of the feed inlet corresponds to the feeding section on each conical screw; the screw flank length of the compression sections is 35 to 45 percent of the total length of all screw flanks on the conical screws; the screw flanks of whole compression sections are provided with a plurality of exhaust grooves, and exhaust grooves are also arranged from the compression section to the screw flank of the feeding section below the feed inlet; and one conical screw is connected with a main drive shaft in a distribution box, while the other conical screw is connected with a driven shaft in the distribution box. The extrusion device has the advantages that the extrusion device effectively increases pressure in the machine barrel, increases the effective length of compression, mixing and preplastication, can better performs mixing and plastication on a polyolefine material, can be used for professional processing of the polyolefine material, and has high yield and less energy consumption.
Description
Technical field [0001] The invention belongs to the field of conical twin-screw extruders, and in particular relates to a new extrusion device of a conical twin-screw extruder capable of professionally processing polyolefin materials. Background technique [0002] The extrusion device in a traditional conical twin-screw extruder includes: a barrel, which is provided with a pair of conical screws, and each conical screw is provided with a feed section, a diverting section, a compression section, and a choke section. There are six spiral sections in total including flow section, exhaust section, and plasticizing homogenization section. The barrel is provided with a feed port and an exhaust port, and the position of the feed port corresponds to the feed section on the conical screw. The position of the air port is facing the exhaust section on the conical screw, and one end of the conical screw is connected to its own transmission shaft. Conical twin-screw extruders are usuall...
Claims
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IPC IPC(8): B29C47/00B29C47/60B29C47/08B29C47/92B29C47/66B29C47/40B29K23/00B29C48/56B29C48/40B29C48/41B29C48/92
CPCB29C48/56B29C48/41B29C48/40
Inventor 季湘杰
Owner 张家港市杰达机械制造有限公司