Multi-section exhaust type extruder and application method thereof
An extruder and venting technology, which is applied in the field of multi-stage venting extruders, can solve the problems of reduced production efficiency and increased production energy consumption, and achieve the effects of improving production efficiency, reducing floor space, and uniform distribution
Pending Publication Date: 2021-12-24
QINGDAO XINDACHENG PLASTIC MACHINERY
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Problems solved by technology
Due to the need to configure a pre-crystallization dryer, on the one hand, the production energy consumption is increased, and on the other hand, the production efficiency is reduced
Method used
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[0040] Such as Figure 1-Figure 9 As shown, the present invention provides a multi-stage exhaust extruder, including: barrel assembly 1, screw assembly 2, motor 3, reducer (not shown) and extruder head (not shown);
[0041] The barrel assembly 1 comprises a first barrel 11, a second barrel 12 and an auxiliary barrel 13, the auxiliary barrel 13 is connected between the first barrel 11 and the second barrel 12, and the auxiliary barrel 13 is also provided with exhaust port 130;
[0042] The screw assembly 2 includes a main screw 21, an auxiliary screw 22, a central screw 23 and a plurality of planetary screws 24, the main screw 21 is rotatably arranged in the first barrel 11, and the auxiliary screw 22 is rotatably arranged in the second barrel 12 , the central screw 23 and the planetary screw 24 are rotatably arranged in the auxiliary barrel 13, and a plurality of planetary screws 24 are distributed outside the central screw 23 and mesh with the central screw 23 respectively, ...
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The invention discloses a multi-section exhaust type extruder and an application method thereof. The extruder comprises a motor, a speed reducer, a machine barrel component, a screw component and an extruder head, wherein the machine barrel component comprises a first machine barrel, a second machine barrel and an auxiliary machine barrel, the auxiliary machine barrel is connected between the first machine barrel and the second machine barrel, and an exhaust port is further formed in the auxiliary machine barrel; the screw component comprises a main screw, an auxiliary screw, a central screw and a plurality of planetary screws, the main screw is rotationally arranged in the first machine barrel, the auxiliary screw is rotatably arranged in the second machine barrel, the central screw and the planetary screws are rotationally arranged in the auxiliary machine barrel, and the planetary screws are distributed outside the central screw and meshed with the central screw respectively; the central screw is connected between the main screw and the auxiliary screw; and a motor shaft of the motor is connected with the main screw through the speed reducer. A pre-crystallization drying machine is saved, so that the energy consumption of pre-crystallization drying treatment in the early stage of material processing and the multi-section exhaust type extruder is reduced, and the production efficiency is improved.
Description
technical field [0001] The invention relates to the field of mechanical technology, in particular to a multi-stage exhaust extruder and a method for using the same. Background technique [0002] Extruders are widely used in industrial production. Extruders generally include a barrel, a screw and a driving mechanism. The driving mechanism drives the screw to rotate in the barrel so that the material is extruded in the barrel and conveyed forward. Some polymer plastics are more sensitive to moisture. For example, saturated polymers contain hydrophilic gene COOR in their molecular structure, which is very easy to absorb water. When they are melted and extruded, they will cause hydrolysis, reduce the viscosity and molecular weight of the melt, and cause extrusion The molded product will foam, become brittle, and turn yellow. For this reason, it is necessary to configure a pre-crystallization dryer, and use the pre-crystallization dryer to pre-crystallize and dry the material. ...
Claims
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IPC IPC(8): B29C48/76B29C48/44
CPCB29C48/767B29C48/44
Inventor 李成秀刘永新李泽群李桂英
Owner QINGDAO XINDACHENG PLASTIC MACHINERY