# US 8,770,104 B2 · Equipment for carrying out the quality control of material printed on paper or plastic bands

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- Number: US 8,770,104 B2
- Document ID: US8770104B2
- Status: Granted
- Kind: B2
- Application number: 13/505,461
- Filed: 2010-12-21
- Published: 2012-10-04
- Granted: 2014-07-08
- Earliest claimed: 2009-12-22
- Assignees: Prati S.R.L.
- Applicants: Pietro Prati
- Inventors: Pietro Prati
- Web page: https://patentgrep.com/patent/US8770104B2

## CPC

- B65H 26/02: responsive to presence of irregularities in running webs
- B41J 15/04: Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
- B65H 2515/84: Quality; Condition, e.g. degree of wear
- B65H 2553/42: Cameras
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B41J: TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS

## Abstract

The machine of the present invention carries out the operations for the quality control of the material printed on a paper or plastic band; the machine has, in the central part, the quality control equipment, preceded by a first part which is constituted of a spool un-winder and of a final part which is constituted of a spool re-winder. The first part, constituted of the un-winder, is comprised between the unwound material and a main drawer, the central part, which constitutes the quality control equipment, is comprised between the main drawer, the control level and an arrest compensator, secondary operations and re-winding.

## Claims

### Claim 1

Equipment for carrying out the quality control of material printed on a paper or plastic band, comprising a first part for un-winding the band, a central part for the control and correction of errors and a final part for re-winding the band, wherein the central part for the control and correction of errors has a device for acquiring images on the band, which is equipped with a moving system which moves it along said band, a band storage, a control device on which master images are loaded, where said control device is provided with a programme which confronts the images obtained by the device for acquiring images on the band with the master images previously loaded on said control device and which, if it encounters differences between the master images and the images acquired from the band, indicates one or more errors, stops a main driving motor and moves the device for acquiring images on the band after the error or the errors noted, in such a way that after the correction of the error or errors said device for acquiring images on the band passes again over the corrected area and checks whether the correction corresponds with the master image previously installed.

### Claim 2 (depends on 1)

The equipment according to claim 1 wherein the system of movement of the device for acquiring images from said band comprises a motorized carriage.

### Claim 3 (depends on 1)

The equipment according to claim 1 wherein the system of movement of the device for acquiring images from said band comprises a motorized slide.

### Claim 4 (depends on 2)

The equipment according to claim 2 wherein a stop time of said main driving motor is pre-determined.

### Claim 5 (depends on 2)

The equipment according to claim 2 wherein a stop space of the band is predetermined.

### Claim 6 (depends on 1)

The equipment according to claim 1 wherein said band storage comprises a sliding motorized roller on axial guides.

### Claim 7 (depends on 3)

The equipment according to claim 3 wherein a stop time of the main driving motor is pre-determined.

### Claim 8 (depends on 3)

The equipment according to claim 3 wherein a stop space of the band is predetermined.