Method for producing a tension member, tension member, and use thereof

Patent metadata

Field	Value
Publication number	US-11401657-B2
Application number	US-202016805719-A
Country	US
Kind code	B2
Filing date	Feb 29, 2020
Priority date	Jun 23, 2014
Publication date	Aug 2, 2022
Grant date	Aug 2, 2022

Abstract

The invention relates to a method for filling in a tension member in particular for conveyor belts, in particular a tension member which is configured as a steel cable. The method is intended to allow the full penetration of the tension member structure. Here, the method contains at least the following method steps: —introducing the individual wires (2, 2′, 2″, 2′″, 2″″) of the strand (5) into the stranding head (1) of a stranding machine (10) and —partially or fully applying at least one coating agent to at least 50% of the individual wires (2, 2′, 2″, 2′″, 2″″) of the strand (5) prior to the twisting of the individual wires (2, 2′, 2″, 2′″, 2″″) to form a strand (5) or simultaneously with the twisting of the individual wires (2, 2′, 2″, 2′″, 2″″) to form a strand (5) and —twisting the individual wires (2, 2′, 2″, 2′″, 2″″) to form a strand (5), wherein at least 50% of the individual wires (2, 2′, 2″, 2′″, 2″″) have been provided with at least one coating agent, and —making a cable from at least one strand (5).

First claim

What is claimed is:

1. A method for producing a tension member, the method comprising:
applying a coating agent at least partially to at least 50 percent of a plurality of wires that have been guided into a stranding machine, wherein the coating agent includes a rubber material and expanded microspheres; and
subsequent to applying the coating agent, twisting the individual wires to form a strand of the tension member.

2. The method of claim 1 , further comprising making the tension member from the strand and one or more additional strands.

3. The method of claim 1 , further comprising applying the coating agent upon at least 80 percent of the plurality of wires.

4. The method of claim 1 , wherein applying the coating agent comprises applying the coating agent completely to at least 50 percent of the plurality of wires.

5. The method of claim 1 , wherein each of the plurality of wires is an individual wire.

6. The method of claim 1 , further comprising an injector configured to apply the coating agent.

7. The method of claim 1 , wherein the formed strand is a core strand of the tension member.

8. The method of claim 1 , wherein the tension member is a steel cable.

9. The method of claim 1 , wherein the tension member is a steel-hybrid cable.

10. A method for producing a tension member, the method comprising:
introducing individual wires into a stranding head of a stranding machine;
guiding the individual wires into the stranding machine;
subsequent to guiding the individual wires into the stranding machine, applying at least one coating agent at least partially to at least 50% of the individual wires, wherein the at least one coating agent is a rubber material;
twisting the individual wires to form a strand;

wherein the at least one coating agent is applied prior to twisting the individual wires to form the strand;
wherein the coating agent comprises expanded microspheres.

11. The method as claimed in claim 10 , wherein the at least one coating agent is partially or completely applied upon at least 80% of the individual wires before the twisting the individual wires to form a strand.

12. The method of claim 10 , further comprising applying additional coating agent during the twisting of the individual wires to form the strand.

13. The method of claim 10 , further comprising selecting the at least one coating agent based on a tension member material and a tension member construction.

14. The method of claim 10 , wherein applying the at least one coating agent comprises brushing the at least one coating agent on to the individual wires.

15. The method of claim 10 , forming a cable having a construction of 7×7, where the strand is comprised of 7 wires.

16. The method of claim 10 , forming a cable having a construction of 7×19, the strand comprised of 19 wires.

17. The method of claim 10 , forming a cable using the strand as a core strand.

18. The method of claim 10 , the individual wires comprising steel.

19. The method of claim 10 , applying the at least one coating agent to the formed strand after the twisting the wires to form the strand.

20. The method of claim 10 , forming a conveyor belt with the strand.

21. The method of claim 10 , the microspheres are hollow balls comprised of one or more of glass, phenolic resin, carbon and/or a thermoplastic material.

Assignees

• Contitech Transportbandsysteme

Inventors

• Lotz Florian
• Dreier Marius
• Koch Harald
• Pavlidis Iordanis

Classifications

• B05C5/0241

  for applying liquid or other fluent material to elongated work, e.g. wires, cables, tubes · CPC title

• B05B13/0207

  the work being an elongated body, e.g. wire or pipe (B05B13/0436, B05B13/0463 take precedence) · CPC title

• D07B2201/2012

  comprising polymers · CPC title

• D07B1/0613 Primary

  the reinforcing cords being characterised by the rope configuration · CPC title

• D07B2501/2076

  Power transmissions · CPC title