Label-rejecting station

Patent metadata

Field	Value
Publication number	US-11718437-B2
Application number	US-202117367789-A
Country	US
Kind code	B2
Filing date	Jul 6, 2021
Priority date	Jul 7, 2020
Publication date	Aug 8, 2023
Grant date	Aug 8, 2023

Abstract

A label-rejecting station, where labels are carried by a support band along an advancing path. The rejecting station includes a deviator element and a contrast element. The deviator element is arranged along the advancing path and movable between an inactive position and an active position wherein it contacts the support band at a first surface thereof, deviating the advancing path. The contrast element is arranged along the advancing path downstream of the deviator element and includes: an abutting surface provided for receiving partially thereon a second surface of the support band, opposite to the first surface; and a detachment edge provided for detaching a label from the support band when the deviator element moves into its active position.

First claim

The invention claimed is:

1. A label-rejecting station, with labels being carried by a support band along an advancing path, the rejecting station comprises:
a deviator element, arranged along the advancing path, and movable between an inactive position and an active position wherein it contacts the support band at a first surface thereof, deviating the advancing path; and
a contrast element, separate and distinct from the deviator element and arranged along the advancing path downstream of the deviator element, comprising in turn:
an abutting surface configured to receive partially thereon a second surface of the support band, opposite to the first surface, during its advancement; and
a detachment edge configured to detach a label from the support band when the deviator element moves into its active position;

wherein the labels are carried by the support band on the first surface of the support band.

2. The rejecting station of claim 1 , wherein the contrast element is unmovable along the advancing path.

3. The rejecting station of claim 1 , wherein the abutting surface of the contrast element has an arch-shaped development.

4. The rejecting station of claim 1 , wherein the detachment edge of the contrast element comprises a corner provided between two sides of the contrast element, the two sides of the contrast element defining an acute angle between them.

5. The rejecting station of claim 1 , wherein the deviator element has a prevailing longitudinal development axis and is configured to swing between the inactive position and the active position around a swinging axis passing through its longitudinal development axis.

6. The rejecting station of claim 5 , wherein the longitudinal development axis of the deviator element is at least partially parallel to the advancing path.

7. The rejecting station of claim 6 , wherein the deviator element partially receives the support band when the deviator element is in its inactive position and when it is in its active position.

8. The rejecting station of claim 5 , wherein a swinging angle of the deviator element is between 25° and 45°.

9. The rejecting station of claim 1 , further comprising a collecting band for rejected labels developing along a collecting path of the labels, adjacent to the advancing path of the support band at least at the contrast element; the collecting band being provided for receiving a label detached from the support band following movement of the deviator element into its active position.

10. The rejecting station of claim 9 , wherein the collecting band is at least partially wound around a collecting roller, which can be activated to rotate in order to move the collecting band with a speed that is a same as a speed of the support band when the deviator element moves into its active position.

11. The rejecting station of claim 10 , comprising:
at least one sensor arranged along the advancing path upstream of the deviator element, provided for detecting an inconformity of the label on the support band, and for sending a corresponding signal; and
a control unit, provided for receiving the corresponding signal from the at least one sensor and to command the deviator element to move into its active position.

12. The rejecting station of claim 11 , wherein the control unit is also provided for commanding the collecting roller to rotate in order to move the collecting band when the corresponding signal has been received.

13. The rejecting station of claim 11 , wherein the at least one sensor is an optical sensor.

14. A labelling machine comprising:
a label-feeding zone, where labels are carried by a support band;
an application zone of the labels to corresponding articles; and
a label-rejecting station according to claim 1 , arranged between the label-feeding zone and the application zone.

Assignees

• Gd Spa

Inventors

• Medina Enrico
• Milandri Francesco
• Gamberini Giuliano

Classifications

• B65C9/42 Primary

  Label feed control · CPC title

• B65C9/08

  Label feeding · CPC title

• B65C2009/404

  prior to labelling · CPC title

• B65C9/18 Primary

  Label feeding from strips, e.g. from rolls · CPC title

• B65C9/40 Primary

  Controls; Safety devices · CPC title