Transport belt and method of making thereof

Abstract

A transport belt and method of making a transport belt for a web-processing machine, in particular a paper machine, paperboard machine or tissue machine, is provided. The transport belt has a load-bearing carrier structure which is covered at least in sections by a polymer areal structure, as the result of which the polymer areal structure and the load-bearing carrier structure make contact with each other in sections either indirectly or directly. The contact region between the load-bearing carrier structure and the polymer areal structure comprises sections in which the carrier structure can move relative to the polymer areal structure.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described in the detailed description which follows, in reference to the noted plurality of drawings by way of non-limiting examples of embodiments of the present invention, in which like reference numerals represent similar parts throughout the several views of the drawings, and wherein:

FIG. 1 illustrates an embodiment of a transport belt according to the present invention shown in section in the CD direction, and

FIGS. 2 a and 2b illustrate the transport belt of FIG. 1 shown in section in the MD direction in the unbent (FIG. 2a) and bent (FIG. 2b) state.

Claims

1. A transport belt for a web-processing machine comprising a load-bearing carrier structure covered at least in sections by a polymer areal structure, wherein the polymer areal structure and the load-bearing carrier structure make contact with each other in sections either one of indirectly or directly, a contact region being formed between the load-bearing carrier structure and the polymer areal structure, the contact region comprising sections in which the load-bearing carrier structure is movable relative to the polymer areal structure.

2. The transport belt according to claim 1, wherein an adhesive connection is absent between the load-bearing carrier structure and the polymer areal structure in sections where the load-bearing carrier structure is movable relative to the polymer areal structure.

3. The transport belt according to claim 1 wherein the load-bearing carrier structure comprises at least one of a fabric, a thread plaiting, and a thread knitting.

4. The transport belt according to claim 1, wherein a separating layer is positioned in the contact region between the load-bearing carrier structure and the polymer areal structure at least in sections.

5. The transport belt according to claim 4, wherein the load-bearing carrier structure comprises threads and the threads are covered with the separating layer at least in sections.

6. The transport belt according to claim 4, wherein the separating layer comprises a material that provides a reduced frictional resistance between the load-bearing carrier structure and the polymer areal structure in the contact region.

7. The transport belt according to claim 6, wherein the separating layer comprises at least one of wax, starch, oil, and silicone.

8. The transport belt according to claim 1, wherein the polymer areal structure completely covers the load-bearing carrier structure.

9. The transport belt according to claim 1, wherein a first surface of the polymer areal structure forms a first side of the transport belt which contacts with a material web when the material web is placed on the web-processing machine.

10. The transport belt according to claim 9, wherein a second surface of the polymer areal structure lying opposite the first side forms a second side of the transport belt which contacts with the web-processing machine when the transport belt is placed on the web-processing machine.

11. The transport belt according to claim 1, wherein the load-bearing carrier structure and the polymer areal structure are essentially immovable relative to each other in sections of the contact region extending in a transverse direction of the transport belt and the load-bearing carrier structure and the polymer areal structure are movable relative to each other in sections of the contact region extending in a longitudinal direction of the transport belt.

12. The transport belt according to claim 1, wherein the transport belt is impermeable to fluid.

13. The transport belt according to claim 1, wherein the transport belt is configured for one of a paper machine, a paperboard machine or a tissue machine.

14. A transport belt for a web-processing machine comprising: a load-bearing carrier structure covered at least in sections by a polymer areal structure, wherein the polymer areal structure and the load-bearing carrier structure make contact with each other in sections either one of indirectly or directly;a contact region being formed between the load-bearing carrier structure and the polymer areal structure, comprising sections wherein the load-bearing carrier structure is moveable relative to the polymer areal structure;an adhesive connection being absent between the load-bearing carrier structure and the polymer areal structure in sections where the load-bearing carrier structure is moveable relative to the polymer areal structure;the load-bearing carrier structure comprising at least one of a fabric, a thread plaiting, and a thread knitting;a separating layer being positioned in a contact region between the load-bearing carrier structure and the polymer areal structure at least in sections; andthe separating layer comprising at least one of wax, starch, oil, and silicone.

15. A method for making a transport belt for a web-processing machine comprising: providing a load-bearing carrier structure covered at least in sections by a polymer areal structure, wherein the polymer areal structure and the load-bearing carrier structure make contact with each other in sections either one of indirectly or directly; andforming a contact region between the load-bearing carrier structure and the polymer areal structure, the contact region comprising sections wherein the load-bearing carrier structure is moveable relative to the polymer areal structure.

16. The method of making a transport belt according to claim 15, wherein an adhesive connection is absent between the load-bearing carrier structure and the polymer areal structure in sections where the load-bearing carrier structure is moveable relative to the polymer areal structure.

17. The method of making a transport belt according to claim 15, wherein the load-bearing carrier structure comprises at least one of a fabric, a thread plaiting, and a thread knitting.

18. The method of making a transport belt according to claim 15, further comprising positioning a separating layer in a contact region between the load-bearing carrier structure and the polymer areal structure at least in sections.

19. The method of making a transport belt according to claim 18, wherein the load-bearing carrier structure comprises threads and the threads are covered with the separating layer at least in sections.

20. The method of making a transport belt according to claim 18, wherein the separating layer comprises a material that provides a reduced frictional resistance between the load-bearing carrier structure and the polymer areal structure in the contact region.

21. The method of making a transport belt according to claim 20, wherein the separating layer comprises at least one of wax, starch, oil, and silicone.

22. The method of making a transport belt according to claim 15, wherein the polymer areal structure completely covers the load-bearing carrier structure.

23. The method of making a transport belt according to claim 15, wherein the transport belt is impermeable to fluid.

24. A method of making a transport belt for a web-processing machine comprising: providing a load-bearing carrier structure covered at least in sections by a polymer areal structure, wherein the polymer areal structure and the load-bearing carrier structure make contact with each other in sections either one of indirectly or directly;forming a contact region between the load-bearing carrier structure and the polymer areal structure, the contact region comprising sections wherein the load-bearing carrier structure is moveable relative to the polymer areal structure;an adhesive connection being absent between the load-bearing carrier structure and the polymer areal structure in sections where the load-bearing carrier structure is moveable relative to the polymer areal structure;the load-bearing carrier structure comprising at least one of a fabric, a thread plaiting, and a thread knitting;positioning a separating layer in a contact region between the load-bearing carrier structure and the polymer areal structure at least in sections; andthe separating layer comprising at least one of wax, starch, oil, and silicone.