# US 10,309,911 B2 · Device and method for radioscopic examination of a strip-shaped material having a substantial component of rubber or plastics

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- Number: US 10,309,911 B2
- Document ID: US10309911B2
- Status: Granted
- Kind: B2
- Application number: 15/250,948
- Filed: 2016-08-30
- Published: 2017-03-02
- Granted: 2019-06-04
- Earliest claimed: 2015-09-02
- Assignees: Troester GmbH & Co. KG
- Applicants: TROESTER GmbH & Co. KG
- Inventors: Kurt Schoppmann; Bernd Pielsticker
- Web page: https://patentgrep.com/patent/US10309911B2

## CPC

- G01N 23/16: the material being a moving sheet or film
- G01N 23/083: the radiation being X-rays
- G01N 23/087: using polyenergetic X-rays
- G01N 23/18: Investigating the presence of flaws defects or foreign matter
- G01N 23/185: {in tyres}
- G01N 33/445: {Rubber}
- G01N 2223/627: tyres
- G01N 2223/642: moving sheet, web
- G01N 2223/643: object on conveyor
- G01N 2223/646: flaws, defects
- G01N 2223/652: impurities, foreign matter, trace amounts
- G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q)

## Abstract

A device and method for the radioscopic examination of a continuous strip-shaped material of rubber which runs continuously in particular. During the movement, the strip-shaped material is x-rayed by a radioscopic measurer and the entire cross-sectional surface is detected so that foreign bodies or defects present in the material are detected according to their position and orientation. An elimination device removes the previously identified foreign body during the feed movement of the material in that a tool, configured as a punching tool, of the elimination device is moved synchronously with the material.

## Claims

### Claim 1

A device, comprising:
a radioscopic measurer configured to examine an entire cross-sectional surface of a strip-shaped material which includes a rubber, plastic, or mixture of two or more of any of these so as to detect coordinates of one or more foreign bodies or defects present in the material at a depth from an upper or lower surface of the material and at an edge distance from at least one lateral edge of the material; and
an eliminator configured to remove at least one of the foreign bodies or defects together with a partial region including the at least one foreign body or defect without breaking through the cross-sectional surface of the material.

### Claim 2 (depends on 1)

The device of claim 1, wherein the radioscopic measurer is configured to examine a continuous strip-shaped material.

### Claim 3 (depends on 1)

The device of claim 1, wherein the radioscopic measurer is configured to examine a material that consists of a rubber, a plastic, or a mixture of two or more of these.

### Claim 4 (depends on 1)

The device of claim 1, wherein the eliminator is configured to remove the partial region during a feed movement of the material.

### Claim 5 (depends on 1)

The device of claim 1, wherein the eliminator includes a tool configured to separate the partial region.

### Claim 6 (depends on 1)

The device of claim 1, wherein the eliminator includes more than one tool configured to separate the partial region.

### Claim 7 (depends on 1)

The device of claim 1, wherein the eliminator includes a punching tool configured to separate the partial region.

### Claim 8 (depends on 1)

The device of claim 1, wherein the eliminator includes a counterholder,
wherein the counterhold is arranged in the partial region to be removed,
wherein the counterhold can be applied against a surface of the material, and
wherein the counterhold includes a contact surface by which the partial region can be fixed before and/or after it has been separated.

### Claim 9 (depends on 1)

The device of claim 1, wherein the eliminator is movable synchronously with the material.

### Claim 10 (depends on 9)

The device of claim 9, wherein the eliminator is movable in a translatory manner.

### Claim 11 (depends on 1)

The device of claim 1, further comprising:
a density measurer suitable for the material.

### Claim 12 (depends on 1)

The device of claim 1, further comprising:
a thickness measurer configured to measure thickness of the material in the cross-sectional plane of the material.

### Claim 13 (depends on 1)

The device of claim 1, wherein the eliminator includes a punching tool having a path-controlled feed movement such that layers located above or below the at least one foreign body or defect are not affected by engagement of the tool.

### Claim 14 (depends on 1)

The device of claim 1, wherein the eliminator includes a punching tool configured to be moved to and rotate at a set depth in the material so as to remove the partial region.

### Claim 15

A method for radioscopically examining a material including a rubber, plastic, or mixture of two or more of any of these, the method comprising:
x-raying an entire cross-sectional surface of the material so as to detect coordinates of one or more foreign bodies and/or defects present in the material at a depth from an upper or lower surface of the material and at an edge distance from at least one lateral edge of the material; and
separating at least one of the foreign bodies and/or defects from the material together with a partial region including the at least one foreign body or defect without breaking through the cross-sectional surface of the material.

### Claim 16 (depends on 15)

The method of claim 15, wherein the material is continuously fed.

### Claim 17 (depends on 15)

The method of claim 15, further comprising:
determining a density of the material using dual x-ray absorptiometry or dual energy, to obtain measured values; and
controlling or regulating a subsequent extrusion process using the measured values.

### Claim 18 (depends on 17)

The method of claim 17, wherein the material is continuously fed.
