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Universal tapered co-directional double-screw-rod extruder for plastic pipes and sheet materials

A twin-screw extruder and plastic pipe technology, applied in the field of plastic extrusion, can solve problems such as damage, unsolved gears, and poor load-bearing capacity, and achieve the effects of prolonging service life, increasing filling length, and reducing manufacturing difficulty

Inactive Publication Date: 2017-12-15
舟山盈科塑料机械有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the distribution box for the conical co-rotating twin-screw extruder still does not solve the defects of frequent gear damage and poor load bearing capacity
[0006] Therefore, it is urgent to provide a common conical co-rotating twin-screw extruder for plastic pipes and plates with high shear heat, good plasticizing ability, large transmission torque of the deceleration distribution box system, high bearing capacity, and long service life. The problem

Method used

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  • Universal tapered co-directional double-screw-rod extruder for plastic pipes and sheet materials
  • Universal tapered co-directional double-screw-rod extruder for plastic pipes and sheet materials
  • Universal tapered co-directional double-screw-rod extruder for plastic pipes and sheet materials

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0038] First, please refer to figure 1 , as a non-limiting embodiment, the general-purpose conical co-rotating twin-screw extruder for plastic pipes and plates of the present invention includes: drive motor 10, deceleration distribution box system 20, feeding system 30, transmission system 40, conical Co-rotating twin screw system 50 , barrel system 60 and exhaust system 70 .

[0039] The driving motor 10 transmits the power to the deceleration distribution box system 20. In the present invention, the deceleration distribution b...

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Abstract

The invention discloses a universal tapered co-directional double-screw-rod extruder for plastic pipes and sheets. The universal tapered co-directional double-screw-rod extruder comprises a driving motor, a deceleration distribution box system, a feeding system, a transmission system, a tapered co-directional double-screw-rod system, an extruder barrel system and an exhaust system; and the tapered co-directional double-screw-rod system comprises a main tapered screw rod and an auxiliary tapered screw rod, the rotating directions of the main tapered screw rod and the auxiliary tapered screw rod are co-directional, and the main tapered screw rod and the auxiliary tapered screw rod are sequentially provided with feeding zones, plasticizing zones, reverse thread zones, secondary plasticizing zones, separation zones, exhaust zones and extrusion zones along the moving direction of materials. The tapered co-directional double-screw-rod extruder has the advantages that shearing heat is large, plastication is good, mixing is good, the filling ratio is high, product strength is good, the surface is bright, no discharge from an exhaust port occurs, transmission torque of the deceleration distribution box system is large, the bearing capacity is doubled, the service life is prolonged greatly, noise is small, and manufacturing is simple; according to the universal tapered co-directional double-screw-rod extruder for the plastic pipes and the sheets, and not only can the plastic sheets be extruded, but also the plastic pipes can be extruded.

Description

technical field [0001] The invention relates to the field of plastic extrusion, in particular to a conical co-rotating twin-screw extruder. Background technique [0002] At present, the equipment used in the manufacture of plastic pipes and plastic sheets mainly includes single-screw extruders, conical counter-rotating twin-screw extruders and conical co-rotating twin-screw extruders. The only advantage of single-screw extruder is low cost, but there are defects in extrusion force, plasticizing performance and energy consumption. The advantages of conical counter-rotating twin-screw extruders are large extrusion force, but poor plasticizing performance, low output, and high energy consumption. Conical co-rotating twin-screw extruder, because the conical screw rotates in the same direction, the plastic to be processed enters the barrel and is extruded in a figure-eight shape around the conical twin-screw in the barrel, which increases the plasticizing time and reduces The f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/40B29C47/60B29C47/76B29C47/82B29C47/08B29C48/76
CPCB29C48/252B29C48/2526B29C48/402B29C48/52B29C48/53B29C48/766B29C48/767B29C48/832
Inventor 袁红康
Owner 舟山盈科塑料机械有限公司
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