Extrusion system for plastics pipes

Details Extrusion system for plastics pipes Extrusion system for plastics pipes

1990-02-26

1992-02-04

Housel, James C.

Plastic article or earthenware shaping or treating: apparatus

Including means advancing continuous length work through...

73622, 264 23, 264 406, 26421113, 425141, 4251742, B29C 4790

Patent

active

050855670

ABSTRACT:
A device for producing hollow plastic pipes having a predetermined wall thickness, includes an extruder for producing soft hollow plastic tubing from a raw material, a continuous cooling chamber disposed downstream of the extruder for hardening the soft hollow tubing into the desired plastic pipes after the wall thickness of the plastic tubing has been calibrated, an independent water cooled calibrating sleeve disposed between the extruder and the cooling chamber which adjusts the wall thickness of the soft hollow plastic tubing, the water cooled calibrating sleeve being separated from the extruder and the cooling chamber, and a thickness measuring device disposed in the gap between the calibrating sleeve and the cooling chamber. The calibrating sleeve has an inner wall in which are arranged water inlets and suction orifices distributed along the circumference and the length of the inner wall. The water inlets lubricate the inner wall while the suction orifices draw the wall of the hollow plastic tubing to the desired wall thickness. In a preferred embodiment, the inner wall includes helically running channels for the supply of water and vacuum to the calibrating sleeve.

REFERENCES:
patent: 3655846 (1972-04-01), Kanoh et al.
patent: 3907961 (1975-09-01), Carrow
patent: 3922328 (1975-11-01), Johnson
patent: 4052887 (1977-10-01), Sheridan et al.
patent: 4663107 (1987-05-01), Takada et al.
patent: 4740146 (1988-04-01), Angelbeck
patent: 4749531 (1988-06-01), Boger et al.
Ulrich Neumann, "There is Still Scope for Energy Savings in Plastics Division", MM Maschinenmarkt, Wurzburg, No. 51-Jun. 24, 1980, pp. 1002 et seq.
Brochure entitled "Scanner SC88", Inoex GmbH, 52.0.
Brochure entitled "Aurex 88R", Inoex GmbH, 49.0.

Affiliated with

Also associated with

Rating

Extrusion system for plastics pipes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Extrusion system for plastics pipes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extrusion system for plastics pipes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-344613