Method and device for conveying flat objects

• US 9,708,132 B2
• Filed: 08/26/2014
• Issued: 07/18/2017
• Est. Priority Date: 08/26/2013
• Status: Active Grant

• Current Assignee: Bobst Mex SA (JBF Finance SA)
• Original Assignee: Bobst Mex SA (JBF Finance SA)
• Inventors: Coullery, Grard
• Primary Examiner(s): Randazzo, Thomas
• Application Number:
  US14/914,323
• Publication Number:
  US 20160200525A1
• Time in Patent Office: 1,057 Days
• Field of Search: 198415
• CPC Class Codes: B65G 47/244 by turning them about an axis substantially perpendicular to the conveying plane
• CPC Class Codes: B65G 47/2445 by means of at least two co-operating endless conveying elements
• CPC Class Codes: B65G 47/31 by varying the relative speeds of the conveyors forming the series

Abstract

In a method for conveying a succession of flat objects in a longitudinal direction, each object is pivoted while being conveyed at a first longitudinal displacement speed (V1) during the pivoting phase in a pivoting zone. Each flat object is conveyed at a second longitudinal displacement speed (V2) in a second zone adjacent to the pivoting zone, the second speed being different from the first speed. This sets spacing between objects in the zones before and after the pivoting zone.

Claims

1. A method for conveying a succession of objects in a longitudinal direction, comprising conveying the objects in the longitudinal direction;

pivoting each object while conveying the object at a first longitudinal displacement speed (V1) during the pivoting and in a pivoting zone;

conveying each object at a second longitudinal displacement speed (V2) in a second zone adjacent along the longitudinal direction to the pivoting zone,

wherein the second longitudinal displacement speed is different from the first longitudinal displacement speed and lower than the first longitudinal displacement speed, when the second zone follows the pivoting zone in the direction of movement of the objects, so that the objects change from a longitudinal position in the conveying direction to a transverse position, and a spacing between two successive objects is reduced in the second zone; and

wherein the second longitudinal displacement speed is greater than the first longitudinal displacement speed, when the second zone precedes the pivoting zone in the direction of movement of the objects, so that the objects change from a transverse position in the conveying direction to a longitudinal position, and a spacing between two successive objects is increased in the pivoting zone.

2. The method according to claim 1, wherein the pivoting of the objects takes place over 90°

.

3. The method according to claim 1, wherein the objects are flat objects.

4. The method according to claim 1, wherein each object has a longer dimension and has a different shorter dimension than the longer dimension, such that the pivoting in the pivoting zone rotates the object on a pivot and each object is pivoted as the object is conveyed between the pivot zones, so that the pivoting changes the orientation of the object with the longer dimension in the conveying direction or the shorter dimension in the conveying direction.

5. The method according to claim 4, wherein the objects are pivoted to cooperate with the speeds of conveying through the zones to coordinate speeds between successive ones of the objects that the spacings between successive objects are adjusted to a distance that does not waste space in the conveying direction.

6. The method according to claim 4, wherein the pivoting of each object is selected so that in each zone at the respective speed thereof, the objects being conveyed through each zone are at about uniform spacing apart in the conveying direction.

7. The method according to claim 6, wherein the second speed is lower than the first speed;

the second zone follows the pivoting zone in the direction of movement of the flat objects; and

each object is pivoted in the pivoting zone so that the object is oriented with the shorter dimension in the conveying direction.

8. The method according to claim 7, wherein the second speed is greater than the first speed;

the second zone precedes the pivoting zone in the direction of movement of the flat objects; and

the object is pivoted so that the object is oriented with the conveyor dimension in the conveying direction.

9. A method for conveying a succession of objects in a longitudinal direction, comprising:

providing a device for processing and conveying of objects, the device comprising;

at least one pivoting zone for the objects, a first conveying device configured and operable for conveying the objects in a longitudinal direction at a first longitudinal displacement speed (V1) in which the objects are conveyed by the first conveying device at the first longitudinal displacement speed (V1);

a second zone adjacent to the first pivoting zone;

a second conveying device for the objects, the second conveying device being configured to convey the objects through the second zone by the second conveying device at a second longitudinal displacement speed (V2) which is different from the first longitudinal displacement speed (V1),

wherein the first and second conveying devices are configured so that the second longitudinal displacement speed is greater than the first longitudinal displacement speed, the second zone preceding the pivoting zone in the direction of movement of the objects;

the method comprising the steps of;

conveying the objects in the longitudinal direction;

pivoting each object in the pivoting zone while conveying the object at the first longitudinal displacement speed (V1) during the pivoting;

conveying each object at the second longitudinal displacement speed (V2) in the second zone along the longitudinal direction to the pivoting zone,

wherein due to the second longitudinal displacement speed being greater than the first longitudinal displacement speed, and the second zone preceding the pivoting zone in the direction of movement of the objects, the objects change from a transverse position in the conveying direction to a longitudinal position, and a spacing between two successive objects is increased in the pivoting zone.

10. A device for processing and conveying of objects, the device comprising:

at least one pivoting zone for the objects,

a first conveying device for the objects, the first conveying device being configured and operable for conveying the objects through the at least one pivoting zone by the first conveying device at a first longitudinal displacement speed (V1) in which the objects are conveyed by the first conveying device at the first longitudinal displacement speed (V1);

a second zone adjacent to the first pivoting zone;

a second conveying device for the objects, the second conveying device being configured and operable to convey the objects through the second zone by the second conveying device at a second longitudinal displacement speed (V2) in which the objects are conveyed by the second conveying device at the second longitudinal displacement speed (V2), the second longitudinal displacement speed (V2) being different from the first longitudinal displacement speed (V1),

wherein the first and second conveying devices are configured so that the second longitudinal displacement speed is greater than the first longitudinal displacement speed, the second zone preceding the pivoting zone in the direction of movement of the objects so that the objects change from a transverse position in the conveying direction to a longitudinal position, and a spacing between two successive objects is increased in the pivoting zone.

11. The device according to claim 10, wherein the pivoting of the objects in the pivoting zone is a rotation by 90°

.

12. The device according to claim 10, wherein the drive of the first conveying device has a drive comprised of a first motor and the drive of the second conveying device has a drive comprised of a second motor.

13. The device according to claim 10, wherein the objects are formed from cardboard, corrugated cardboard, paper or synthetic material.

14. The device according to claim 10, wherein the objects are flat objects.

15. A machine for processing flat objects, comprising at least one device according to claim 10.