Method and device for handling containers

Patent metadata

Field	Value
Publication number	US-11577914-B2
Application number	US-201816492931-A
Country	US
Kind code	B2
Filing date	Feb 20, 2018
Priority date	Mar 10, 2017
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

A method and device for treating containers with at least two container treatment machines, between which a transport device for transporting the containers is arranged, where the transport device is divided into several transport sections, where the flow of containers is changed from containers of type A to containers of type B, where a separating device is activated once the first transport section has run empty of containers of type A, where containers of the type B are transported into the first transport section and backed up at the separating device, while containers of type A are transported from the second transport section to the second container treatment machine, and where the separating device is deactivated once the second transport section has run empty of containers of the type A, so that the containers of type B are transported through the second transport section to the second container treatment machine.

First claim

The invention claimed is:

1. A method for treating containers with at least two container treatment machines, between which a transport device for transporting said containers is arranged, wherein the method comprises:
when changing containers of type A to containers of type B,
a separating device is activated between said first and said second container treatment machines which separates a flow of containers into a first and a second transport section after said first transport section has run empty of said containers of type A, where said first transport section adjoins said second transport section,
said containers of type B are conveyed previously in said first transport section and backed up upstream of said separating device, while said containers of type A are conveyed out of said second transport section to said second container treatment machine, and thereafter
said separating device between said first and said second transport sections is deactivated so that said backed-up and following said containers of type B are transported through said second transport section to said second container treatment machine, wherein said first container treatment machine sends a signal for an end of production of said containers of type A to a control device, and determines in dependence of said signal whether or not said containers are disposed on said first and/or n th +1 transport section, where the a container of said containers of type A is tracked.

2. The method according to claim 1 , wherein said separating device between said first and said second transport sections is deactivated after said second transport section has run empty of said containers of type A.

3. The method according to claim 1 , wherein several separating devices are provided between said first and said second container treatment machines, where a further n th +2 transport path ( 4 n+2 ) is provided downstream of an n th +1 transport section ( 4 +i ), where an n th +1 separating device between said n th +1 and said n th +2 transport sections is activated after said n th +1 transport section has run empty of said containers of type A, and
said containers of type B are conveyed in said n th +1 transport section, while said containers of first type A are transported out of said n th +2 transport path, and
said n th +1 separating device is deactivated when said n th +2 transport section has run empty of said containers of type A, where nϵN.

4. The method according to claim 1 , wherein while said separating device is activated, said containers of second type B back up upstream of said separating device, and said backed-up second containers of type B pass through the entire second transport section when said separating device is deactivated.

5. The method according to claim 1 , wherein said transport device comprises several individually actuatable conveyors and said at least one separating device comprises one of said conveyors which stops upon activation of said separating device such that said container back up, where said conveyor acts as a separating device is arranged in an end region of said respective transport section or said transport path of said conveyor corresponds to said transport section, where
a respective specific conveyor is associated with a respective separating device, so that said at least two transport sections each have a predetermined length and position, and
several transport sections are provided, each corresponding to said transport path of successive conveyors, where, when said conveyors have respectively run empty of said containers of type A, then said respectively emptied conveyor, which in the direction of transport is located at the front behind said containers of type A, is stopped until said conveyor of said containers of type A, that in the direction of transport is the following one, has run empty, which is then stopped again, where the preceding conveyor enters back into operation.

6. The method according to claim 1 , wherein said separating device comprises a mechanical back-up element which is introduced into the flow of containers.

7. The method according to claim 1 , said containers of type A and type B differ only to the extent that said same transport device is used without any changeover between said container treatment machines.

8. The method according to claim 1 , wherein it is determined by way of at least one sensor on said first and/or n th +1 transport section whether containers of said first type A are disposed in said first and/or in said second transport section.

9. A device for performing a method for treating containers of type A and containers of type B with at least two container treatment machines, the device comprising:
a first and a second container treatment machine,
a transport device between said first and said second container treatment machines, wherein
a separating device between said first and said second container treatment machines, wherein the separating device, upon activation, separates a flow of containers into a first and a second transport section such that said containers of type A back up upstream of said separating device, where said first transport section adjoins said second transport section in a direction of transport,
a control device which is configured to activate said separating device between the first and a second transport section when there is a changeover from said containers of type A to said containers of type B, if no containers of type A are disposed on said first transport section, such that
said first transport section is already fed said containers of type B while at the same time said containers of type A are conveyed out of said second transport section without said containers of type A and B being mixed, and
said control device is configured to deactivate said separating device so that said backed-up and following said containers of type B is transported through said second transport section in a direction toward said second container treatment machine, wherein a heating or cooling device is arranged between said first and second container treatment machines and a separating device is arranged upstream of said heating or cooling device and/or downstream of said heating or cooling device.

10. A device according to claim 9 , wherein said device comprises a plurality of separating devices between said first and second container treatment machines.

11. A device according to claim 9 , wherein said device further comprises a first detection device which detects whether said first transport section has emptied during a product change and generates a signal when said first transport section is empty, on the basis of which said control device activates said separating device.

12. The device according to claim 9 , wherein said device comprises a second detection device which detects whether said second transport section has emptied and either generates a signal on the basis of which said control device deactivates said separating device when said second transport path has emptied, or generates a respective signal when said second transport path has emptied and said second container treatment machine generates a signal that it is ready to treat said container of type B.

13. The device according to claim 9 wherein said transport device comprises a plurality of individually actuatable conveyors and said separating device comprises a conveyor which upon activation of said separating device stops such that said containers back up.

14. The device according to claim 13 , wherein said first container treatment machine is a packer and said second container treatment machine is a palle

Assignees

• Krones Ag

Inventors

• Hahn Wolfgang
• Risse Norbert
• Woelfel Heinz

Classifications

• G05B19/4189 Primary

  characterised by the transport system · CPC title

• B65G2203/042

  Sensors · CPC title

• Y02P90/02

  Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS] · CPC title

• G05B2219/31273

  Buffer conveyor along main conveyor · CPC title

• B65G2203/0208

  relating to the transported articles · CPC title