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Large double twisting machine frame and processing method thereof

A double-twisting machine and frame technology, which is applied in the direction of textiles, papermaking, rope-making auxiliary devices, textile cables, etc., can solve the problems of large equipment vibration, uneven removal allowance, and low bearing life, so as to improve the frame High flatness and position accuracy, improved processing quality and service life, and improved production speed and quality

Active Publication Date: 2019-07-19
湖北三江航天江北机械工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the heavy weight of the large double-twisting machine frame, it will bend and deform due to its own gravity during processing. At the same time, the overall removal allowance is uneven, and it is easy to deform after processing, which affects the parallelism of the spindle mounting surfaces on both sides. Precision, long-term high-speed operation of the equipment results in low bearing life and large equipment vibration, which seriously affects the overall performance of the large double-twisting machine

Method used

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  • Large double twisting machine frame and processing method thereof
  • Large double twisting machine frame and processing method thereof
  • Large double twisting machine frame and processing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: A method for processing the above-mentioned large-scale double twisting machine frame, including the following steps:

[0042] 1) Divide the frame of the large double-twist machine into three parts: the first main shaft frame 1, the second main shaft frame 2, and the intermediate shaft 3 for processing, and process the corresponding plates according to the required plate size of each part. 1. The plates of each part of the second main shaft 2, the intermediate shaft 3 are made of CO 2 Shielded welding corresponds to welding, CO 2 The welding current of shielded welding is 250A, the welding voltage is 45V, and the shielding gas is CO 2 The flow rate is 35L / min, the welding speed is 80mm / min, and the weld height is 6mm. After the welding is completed, clean and polish the weld;

[0043] 2) Step 1) Welded first main frame 1, second main frame 2, and intermediate shaft 3 are kept for 3 hours at an annealing temperature of 500°C for stress relief annealing, and then ...

Embodiment 2

[0048] Embodiment 2: A method for processing the above-mentioned large-scale double twisting machine frame, including the following steps:

[0049] 1) Divide the frame of the large double-twist machine into three parts: the first main shaft frame 1, the second main shaft frame 2, and the intermediate shaft 3 for processing, and process the corresponding plates according to the required plate size of each part. 1. The plates of each part of the second main shaft 2, the intermediate shaft 3 are made of CO 2 Shielded welding corresponds to welding, CO 2 The welding current of shielded welding is 200A, the welding voltage is 40V, and the shielding gas is CO 2 The flow rate is 30L / min, the welding speed is 70mm / min, and the weld height is 4mm. Clean and polish the weld after welding;

[0050] 2) Step 1) Welded first main frame 1, second main frame 2, and intermediate shaft 3 are kept for 2 hours at an annealing temperature of 450°C for stress relief annealing, and then cooled to 300°C wi...

Embodiment 3

[0055] Embodiment 3: A processing method of the above-mentioned large double twisting machine frame, including the following steps:

[0056] 1) Divide the frame of the large double-twist machine into three parts: the first main shaft frame 1, the second main shaft frame 2, and the intermediate shaft 3 for processing, and process the corresponding plates according to the required plate size of each part. 1. The plates of each part of the second main shaft 2, the intermediate shaft 3 are made of CO 2 Shielded welding corresponds to welding, CO 2 The welding current of shielded welding is 220A, the welding voltage is 42V, and the shielding gas is CO 2 The flow rate is 32L / min, the welding speed is 75mm / min, and the weld height is 5mm. Clean and polish the weld after welding;

[0057] 2) Step 1) Welded first main shaft frame 1, second main shaft frame 2, and intermediate shaft 3 are kept at an annealing temperature of 480°C for 2 to 3 hours for stress relief annealing, and then cooled t...

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Abstract

The invention discloses a large double-twisting machine rack and a machining method thereof. The machining method includes the steps that the large double-twisting machine rack is divided into a firstmain shaft frame, a second main shaft frame and a middle shaft, corresponding plates are machined according to the required plate sizes of all parts, and the plates of all parts of the first main shaft frame, the second main shaft frame and the middle shaft are welded correspondingly through CO2 protection welding; stress annealing treatment is conducted; the middle shaft is placed between the first main shaft frame and the second main shaft frame, joints are welded, and welding of the whole rack is completed. According to the machining method, the deformation amount and the machining technology of the whole rack are controlled by controlling welding parameters and annealing stress, so that the product machining quality and the service life of a large double-twisting machine are guaranteed.

Description

Technical field [0001] The invention relates to the technical field of double-twisting machine and its processing and manufacturing, in particular to a large-scale double-twisting machine frame and its processing method. Background technique [0002] With the rapid development of steel cord production technology, the demand for double-twisting machines for production is increasing. The double-twist machine is used to twist multiple strands of steel wire into steel cord rope and is a key equipment in the steel cord industry. [0003] However, due to the heavy weight of the frame of the large double twisting machine, it will be bent and deformed due to its own gravity during processing. At the same time, the overall removal margin is uneven, which is prone to deformation after processing, which affects the parallelism of the spindle mounting surfaces on both sides. Accuracy, in the process of long-term high-speed operation of the equipment, resulting in low bearing life and large eq...

Claims

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Application Information

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IPC IPC(8): D07B7/02B23P15/00
Inventor 任晗童辉朱国刚张文周萌
Owner 湖北三江航天江北机械工程有限公司