IT1252192B - Method and equipment for continuously monitoring the uniformity of thickness of an extruded tubular semi- finished product - Google Patents

Method and equipment for continuously monitoring the uniformity of thickness of an extruded tubular semi- finished product

Info

Publication number
IT1252192B
IT1252192B ITMI913329A ITMI913329A IT1252192B IT 1252192 B IT1252192 B IT 1252192B IT MI913329 A ITMI913329 A IT MI913329A IT MI913329 A ITMI913329 A IT MI913329A IT 1252192 B IT1252192 B IT 1252192B
Authority
IT
Italy
Prior art keywords
finished product
uniformity
semi
thickness
equipment
Prior art date
Application number
ITMI913329A
Other languages
Italian (it)
Inventor
Federico Mancosu
Antonio Galante
Original Assignee
Pirelli Prod Diversificati
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pirelli Prod Diversificati filed Critical Pirelli Prod Diversificati
Priority to ITMI913329A priority Critical patent/IT1252192B/en
Publication of ITMI913329A0 publication Critical patent/ITMI913329A0/en
Publication of ITMI913329A1 publication Critical patent/ITMI913329A1/en
Application granted granted Critical
Publication of IT1252192B publication Critical patent/IT1252192B/en

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  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A die 6 for continuous extrusion of a tubular semi- finished product 12 is associated with measuring elements 13 for measuring the speed of surface movement of the semi-finished product 12, at corresponding reading points ("P") distributed over the perimeter and lying in a common plane orthogonal to the direction of advance of the semi-finished product 12 and located outside and behind the extrusion die 6. One or more electronic controllers 29 connected to the measuring elements 13 compares the measured values of speed to indicate a situation of non-uniformity of thickness of the semi- finished product 12 when at least one of these values is found to be excessively different from the other measured values. Following the indication, regulating elements 13 associated with the extrusion die 6 are brought into action to correct the non-uniformity of thickness. <IMAGE>
ITMI913329A 1991-12-12 1991-12-12 Method and equipment for continuously monitoring the uniformity of thickness of an extruded tubular semi- finished product IT1252192B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ITMI913329A IT1252192B (en) 1991-12-12 1991-12-12 Method and equipment for continuously monitoring the uniformity of thickness of an extruded tubular semi- finished product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI913329A IT1252192B (en) 1991-12-12 1991-12-12 Method and equipment for continuously monitoring the uniformity of thickness of an extruded tubular semi- finished product

Publications (3)

Publication Number Publication Date
ITMI913329A0 ITMI913329A0 (en) 1991-12-12
ITMI913329A1 ITMI913329A1 (en) 1993-06-12
IT1252192B true IT1252192B (en) 1995-06-05

Family

ID=11361316

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI913329A IT1252192B (en) 1991-12-12 1991-12-12 Method and equipment for continuously monitoring the uniformity of thickness of an extruded tubular semi- finished product

Country Status (1)

Country Link
IT (1) IT1252192B (en)

Also Published As

Publication number Publication date
ITMI913329A1 (en) 1993-06-12
ITMI913329A0 (en) 1991-12-12

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