Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for measuring a tubular strand

A strip and tubular technology, applied in the field of tubular strips, can solve problems such as signal loss and achieve the effect of reducing structural space

Pending Publication Date: 2020-11-27
SIKORA GMBH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can result in loss of signal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for measuring a tubular strand
  • Method and device for measuring a tubular strand
  • Method and device for measuring a tubular strand

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] In the figures, the same reference numerals denote the same objects, unless otherwise stated.

[0042] exist figure 1 In , an extrusion device 10 for extruding a tubular strand is shown. The extrusion device 10 has, in a known manner, a conveying device 12 for conveying the plastic material to be processed. The plasticized plastic material is extruded by means of an extruder screw 12 from an annular gap 14 into a tubular strand 16 . A rotationally driven central shaft 18 extends within the extruder screw 12 . In the example shown, a calibration device 22 adjoins the extruder head 20 directly, the calibration device having a metal calibration sleeve 24 against which the extruded strand 16 is pressed by means of a negative pressure. The cooling tube 25 of the cooling section adjoins the calibrating sleeve.

[0043] exist figure 1In the example shown in , a mirror 26 is arranged inside the extruded strand 16 and substantially directly next to the extruder head 20 and ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for measuring a tubular strand (116, 16, 216) emerging from an extruder (10, 110, 12, 210), in which electromagnetic radiation in the frequency range from 1 GHz to 6000 GHz from at least one radiation source (32) is directed from the interior onto the inside of the tubular strand (116, 16, 216). Electromagnetic radiation reflected by the tubular strand (16, 216) is received by at least one radiation receiver (32), and the diameter and / or the wall thickness and / or deviations of shape of the tubular strand (116, 16, 216) is / are determined from the received electromagnetic radiation. The invention further relates to a corresponding device.

Description

technical field [0001] The invention relates to a method and a device for measuring tubular strands emerging from an extrusion device. Background technique [0002] In an extrusion device, for example, a granularly conveyed plastic is melted and the flowable plastic is delivered as a tubular strand through an annular gap. Subsequently, the tubular strip section enters a calibration device with a calibration sleeve, for example by applying a negative pressure (vacuum tank) to press the tubular strip section against the inner surface of the calibration sleeve. During the continuing process, the tubular strand passes through a cooling zone in which the outside of the strand is rinsed with a cooling liquid, for example cooling water. [0003] There is a desire to ascertain certain geometric parameters of the tubular strip, such as diameter, wall thickness or deviations from a predetermined shape, early on in order to be able to intervene in a corrective manner on the basis of t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/92B29C48/90G01B11/06G01N21/954B29C48/49
CPCG01N2021/9544B29C48/09B29C48/2528B29C48/49B29C48/903B29C48/92B29C2948/92123B29C2948/92152B29C2948/92171B29C2948/92447B29C2948/926B29C2948/92828G01B11/105G01B11/24G01B15/02G01B15/04G01N22/00G01N21/8901G01N21/892G01N21/954B29C48/90B29C2948/92647B29C2948/92666B29C48/901G01B11/12G01B11/0691B29C2948/92361B29C2948/92428B29C2948/92619B29C2948/9298G01B11/06B29C2948/92857B29L2023/00B29L2031/731
Inventor A·霍勒
Owner SIKORA GMBH