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Paying-off device of high-elongation steel cord and method for solving twisting strand channeling of high-elongation steel cord

The technology of a pay-off device and a solution method is applied in the auxiliary device for rope making, textiles, papermaking, textile cables, etc. , the effect of improving the elongation index

Active Publication Date: 2022-06-03
JIANGSU XINGDA STEEL TYPE CORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if high-elongation steel cords without solder joints are used for extrusion production, due to factors such as the tension of the wires, the steel cords will move during the extrusion process, resulting in the length of the three strands of the steel cords Inconsistency and strand shifting lead to extrusion line breakage
Therefore, the existing stranding machine tool cannot effectively avoid the problem of strand shifting of the 3×7×0.20HE high elongation steel cord, and it is necessary to improve the pay-off device of the stranding machine tool and provide a solution for its twisting strand shifting

Method used

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  • Paying-off device of high-elongation steel cord and method for solving twisting strand channeling of high-elongation steel cord
  • Paying-off device of high-elongation steel cord and method for solving twisting strand channeling of high-elongation steel cord
  • Paying-off device of high-elongation steel cord and method for solving twisting strand channeling of high-elongation steel cord

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

This embodiment introduces a pay-off device for high-elongation steel cords, including: a main engine 1, a twister 2, a traction wheel set 3, a main shaft flywheel 4, a cradle pay-off base plate 5, a pay-off mechanism and a synchronization mechanism; The pay-off mechanism mainly includes a pay-off seat 6, a tension belt 7, and a pay-off seat fixing pin 8. The synchronizing mechanism mainly includes: a pay-off seat pulley set 9 and a timing belt 10. The pay-off seat pulley set Including: pulley 11 and tension friction plate 12.

[0018] The machine tool model of the host 1 can be a DT3G double twisting machine, which is a model with internal pay-off and external take-up, and is widely used.

[0019] The twister 2 is installed on the main board of the host machine 1 and is driven by the motor to operate, which can effectively eliminate the residual stress of the steel cord during twisting, and produce high elongation 3×7×0.20HE steel cords. No straightener tooling is required. ...

Embodiment 2

This embodiment introduces a solution for twisting strands using the pay-off device for high-elongation steel cords of Embodiment 1: after adjusting the three sets of pay-off tensions of the DT3G machine tool according to the technical specifications, start the threading step and Produced at process speed. Take a section of lead wire for threading from the take-up part, first pass through the twister 2, and then pass the lead wire through the spindle flywheel disc 4, that is, the lead wire first passes through the left spindle pulley and the left flywheel pulley, and then passes through the right flywheel pulley and the right spindle pulley. And pull the lead to the cradle pay-off seat.

[0028] Drop the 3-strand wire I-shaped wheel on the pay-off base 6 and the pay-off fixing pin 8, arrange the thread ends in turn, and install the running guide wheels and guide rods in turn and knot them with the lead wires, and tie the word "∞". The junction prevents slippage and disconnecti...

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Abstract

The invention discloses a pay-off device for a high-elongation steel cord and a method for solving twisting strand channeling of the pay-off device, and belongs to the technical field of steel cord stranding and rope forming production. The invention aims to solve the technical problems that the pay-off tension is inconsistent, and strand channeling is easy to occur. Comprising a main machine, an over-twisting device installed on the main machine, a traction wheel set installed on the left side of the over-twisting device and a main shaft flywheel disc arranged on the right side of the over-twisting device, the main shaft flywheel disc comprises a left flywheel disc, a right flywheel disc, a left main shaft and a right main shaft, and a cradle pay-off bottom plate is arranged between the left flywheel disc and the right flywheel disc. A plurality of groups of pay-off mechanisms are arranged on the cradle pay-off bottom plate, the pay-off tension can be controlled by the plurality of groups of pay-off mechanisms, and a synchronizing device is arranged below the plurality of groups of pay-off mechanisms and can buffer the pay-off tension of the pay-off mechanisms. According to the pay-off device, the consistency of the pay-off tension of the pay-off device can be kept, the strand channeling phenomenon is reduced, the elongation index is improved, and the product quality of steel cords is improved.

Description

technical field [0001] The invention relates to a pay-off device for high-elongation steel cords and a solution method for twisting and twisting strands, belonging to the field of steel cords plied into ropes. Background technique [0002] The main specifications of high-elongation steel cords are 3×7, 3×4, 4×4, 4×6 and other structures, and the 3×7 structure is the most widely used in tire manufacturing applications. Taking 3×7×0.20HE structure high-elongation steel cord as an example, in the tire manufacturing process, according to the different application parts of the tire, there are two production processes: zero-degree extrusion method and calendering method. Among them, the extrusion production process has higher requirements for high elongation steel cords. Due to the influence of factors such as the pressure of the extruder, the extrusion speed and the aperture of the extrusion plate, the problem of extrusion breakage will occur during the production process. In or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B3/00D07B7/02
CPCD07B3/00D07B7/02
Inventor 杨爱存丁文旭付双杰张正裕徐益明陈刚
Owner JIANGSU XINGDA STEEL TYPE CORD