# US 10,500,779 B2 · Calibration device, calibration method and method for manufacturing a calibration device

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- Number: US 10,500,779 B2
- Document ID: US10500779B2
- Status: Granted
- Kind: B2
- Application number: 14/893,507
- Filed: 2014-05-23
- Published: 2016-04-21
- Granted: 2019-12-10
- Earliest claimed: 2013-05-24
- Assignees: Greiner Tool. Tec GmbH
- Applicants: Greiner Tool.Tec GmbH
- Inventors: Bernhard Fischer; Gerhard Anders; Leopold Weiermayer; Erwin Krumböck
- Web page: https://patentgrep.com/patent/US10500779B2

## CPC

- B29C 48/908: {characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting}
- B29C 48/09: Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
- B29C 48/12: Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
- B29C 48/903: {externally}
- B29C 48/904: {using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication}
- B29C 48/905: {using wet calibration, i.e. in a quenching tank}
- B29C 48/11: comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
- B29C 48/256: {Exchangeable extruder parts (B29C48/691 takes precedence)}
- B29C 48/885: External treatment, e.g. by using air rings for cooling tubular films
- B29C 48/912: {of tubular films}
- B29C 48/916: {using vacuum}
- B29C 48/919: {using a bath, e.g. extruding into an open bath to coagulate or cool the material}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)

## Abstract

A calibration device for a calibration, in particular wet calibration of an extrusion device is provided. The calibration device comprises a calibrating element which includes an opening for guiding through a profile produced by means of an extrusion die of the extrusion device and at least one rotatable guide roller which is in contact with the profile when the profile is guided through the opening. The calibration device further comprises at least one separate bearing element insertable into a cutout of the calibrating element, via which the guide roller can rotatably be mounted on the calibrating element.

## Claims

### Claim 1

A calibration device for a calibration, in particular a wet calibration, of an extrusion device, comprising:
a calibrating element which includes an opening for guiding through a profile produced by means of an extrusion die of the extrusion device,
at least one rotatable guide roller which is in contact with the profile when the profile is guided through the opening, and
at least one separate bearing element insertable into a cutout of the calibrating element, via which the guide roller can rotatably be mounted on the calibrating element,
wherein at least one trunnion is provided at the guide roller or the bearing element,
wherein the trunnion engages a bore of the bearing element or the guide roller, respectively,
wherein an outer diameter of the trunnion is smaller than an inner diameter of the bore,
wherein the bearing element is one-piece and arranged directly in the cutout of the calibrating element, and
wherein the bearing element is non-positively fixed at the calibrating element in such a way that shifting of the bearing element in a direction of movement of the profile is counteracted and/or the bearing element includes at least one stop cooperating with an edge or boundary surface of the cutout such that it positively secures the bearing element against being shifted in a direction of extrusion of the profile.

### Claim 2 (depends on 1)

The calibration device according to claim 1, wherein the bearing element has at least one wedge-shaped structure which can cooperate with a boundary surface of the cutout such that it non-positively fixes the bearing element at the calibrating element.

### Claim 3 (depends on 1)

The calibration device according to claim 1, wherein the bearing element is formed curved, so that with one portion of a first long side and with two portions of a second long side, which is opposed to the first long side, it can rest against an inside of the cutout such that the bearing element is non-positively fixed at the calibrating element.

### Claim 4 (depends on 1)

The calibration device according to claim 1, wherein the bearing element includes at least one stop which can cooperate with an edge or boundary surface of the cutout such that it positively secures the bearing element against being shifted in a direction of extrusion of the profile.

### Claim 5 (depends on 1)

The calibration device according to claim 1, wherein the calibrating element includes at least one stop via which the bearing element can positively be secured against being shifted in a direction of extrusion of the profile.

### Claim 6 (depends on 1)

The calibration device according to claim 1, wherein the bearing element includes a resilient portion which can cooperate with a boundary surface of the cutout such that it non-positively fixes the bearing element at the calibrating element.

### Claim 7 (depends on 1)

The calibration device according to claim 1, wherein the calibrating element includes a resilient portion which can act on the bearing element such that the bearing element is non-positively fixed at the calibrating element.

### Claim 8 (depends on 1)

The calibration device according to claim 1, further comprising a fastening element penetrating the calibrating element down to the cutout, via which the bearing element can be fixed at the calibrating element.

### Claim 9 (depends on 8)

The calibration device according to claim 8, wherein the fastening element with one portion, as seen in a direction of extrusion of the profile, extends behind the bearing element, urges bluntly against the bearing element, protrudes into a counterbore of the bearing element or can be screwed into a threaded bore of the bearing element.

### Claim 10 (depends on 1)

The calibration device according to claim 1, wherein to the guide roller the trunnion is integrally molded or a bearing pin is inserted, via which the guide roller can rotatably be mounted on the bearing element.

### Claim 11 (depends on 10)

The calibration device according to claim 10, wherein the trunnion or the bearing pin engages into the bore of the bearing element or into a sleeve inserted into the bore of the bearing element.

### Claim 12 (depends on 1)

The calibration device according to claim 1, wherein the trunnion is integrally molded to the bearing element or a bearing pin is inserted, wherein the trunnion or the bearing pin engages into a bore of the guide roller or into a sleeve inserted into a bore of the guide roller.

### Claim 13 (depends on 1)

The calibration device according to claim 1, wherein a part of the bearing element and/or a part of the guide roller, via which the guide roller can be mounted on the bearing element, is formed of a metal or a plastic material.

### Claim 14 (depends on 1)

The calibration device according to claim 1, wherein a part of the bearing element, via which the guide roller can be mounted on the bearing element, is formed of a sintered metal alloy or a sintered hard metal.

### Claim 15 (depends on 1)

The calibration device according to claim 1, wherein:
for mounting the guide roller on the bearing element, the trunnion includes a bearing pin and/or a sleeve, and
the bearing pin and/or the sleeve are formed of another material than the guide roller and/or the bearing element.

### Claim 16 (depends on 1)

The calibration device according to claim 1, wherein the cutout extends through the calibrating element in a direction of extrusion.
