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Screw-type extruding machine comprising mixing and kneading disks

A technology of mixing, stirring and extruder, applied in the field of screw extruder, which can solve the problems of short-running torque, increase of torque and momentum, etc.

Active Publication Date: 2005-02-23
COPERION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the above-mentioned known design and arrangement of the mixing discs, there is still an increase in the torque momentum due to the overlapping of the positions of the mixing discs occurring multiple times simultaneously in the above-mentioned symmetrical mixing disc assembly - a short and strong dynamic torque increase

Method used

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  • Screw-type extruding machine comprising mixing and kneading disks
  • Screw-type extruding machine comprising mixing and kneading disks
  • Screw-type extruding machine comprising mixing and kneading disks

Examples

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Embodiment Construction

[0014] The twin-screw / rotary extruder 1 shown in the drawings is driven by an electric motor 2 via a coupling 3 and a transmission 4 thereafter. The housing 5 of the screw extruder 1 comprises two housing bores 6, 6' having parallel axes 7, 7' intersecting in the form of a horizontal figure "8". Screw shafts 8, 8' whose axes coincide with the axes 7, 7' are provided in the holes 6, 6'. The transmission 4 drives the screw shafts 8, 8' in the same direction of rotation 9, 9'.

[0015] The end of the housing 5 close to the transmission 4 has a feed hopper 10 through which the raw material to be processed is supplied. Thereafter, screw threads 11, 11' are provided on the screw shafts 8, 8', thereby forming a feeding area 12.

[0016] Thereafter, the mixing discs 13, 13', 14, 14', 15, 15', 16, 16' and 17, 17' are non-rotatably mounted on the screw shafts 8, 8'; The examples are generally shown as stirring assemblies 18, 18'. In the vicinity of these stirring assemblies 18, 18' ...

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Abstract

A screw-type extruding machine comprises at least two casing bores with screw shafts disposed therein, on which several successive mixing and kneading disks are mounted, interengaging in pairs. Successive mixing and kneading disks make an angle of crest misalignment which is not integrally contained in 360 DEG .

Description

technical field [0001] The present invention relates to a screw extruder, which comprises at least two parallel and intersecting housing inner holes; a rotatably driven screw shaft located in the holes; Interengaging mixing paddles having at least one tooth top and at least one tooth side. Background technique [0002] Such screw extruders comprising mixing discs of this type are known, see for example EP 0 875 356 B1 (corresponding to US 6 048 088), EP 0 160 124 (corresponding to US 4 824 256) and EP 1 121 238 B1 (corresponding to US 09 / 806 605). In these known screw extruders, a plurality of mixing and stirring discs are arranged in sequence on a screw shaft to jointly form a stirring assembly. These stirring components are designed such that the staggered angle of the addendum formed by adjacent stirring discs is an integer (dividing) factor of 360°. The first and last mixing paddles of a mixing assembly are usually superimposed. A stirring assembly with a sequence of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/57B29B7/42B29B7/48B29C48/03B29C48/06B29C48/54B29C48/67
CPCB29C47/6031B29C47/0801B29C47/0009B29C47/6056B29C47/402B29C47/0861B29C47/0016B29C48/03B29C48/06B29C48/252B29C48/2517B29C48/402B29C48/54B29C48/57B29B7/489B29B7/483
Inventor R·赫脱
Owner COPERION