A method of twisting a steel wire rope for 1x2-Φ3.2mm mechanical spring

Abstract

A kind of method for twisting 1 × 2-Φ3.2mm special mechanical spring wire rope, install a horizontal group and vertical group straightener in the tile seat in twisting equipment, 23 press-bend rollers, roller diameter is 6.25 times ± 10% of rope diameter, roller end distance is 1.8-2.0 times of roller diameter, press-bend circular groove diameter in roller is 1.55 times ± 10% of rope diameter, press-bend depth is 0.5-0.8 times of rope diameter, wire rope torsion is-45 ° ~ +45 °;Install a horizontal group straightener synchronous with laying device before laying device, 7 press-bend rollers, roller diameter is 6.25 times ± 10% of rope diameter, roller end distance is 1.8-2.0 times of roller diameter, press-bend circular groove diameter in roller is 1.55 times ± 10% of rope diameter, press-bend depth is 0.2-0.4 times of rope diameter;Steel wire for twisting is hung with traction rope, point motion twisting equipment to make wire rope forming, compact wire pressing tile, after wire rope hanging head opens traction wheel a circle, adjust press-bend depth of horizontal group and vertical group straightener to start production, until wire rope hanging head opens laying device and goes to take-up large wheel, check wire rope torsion-45 ° ~ +45 °, then adjust press-bend depth of horizontal group straightener to be able to normal production.

Description

Technical Field

[0001] The invention relates to a device for twisting a 1×2-Φ3.2mm steel wire rope for a mechanical spring, belonging to the technical field of metal product processing. Background Art

[0002] In the mechanical spring industry, twisting steel wire into single-strand steel wire rope is sometimes used to replace spring wire. Springs made from twisted single-strand steel wire rope require a wire strength of 2000-2170 MPa, with a wire rope strength of no less than 1780 MPa. When cut into 5-meter lengths and placed horizontally, the rope should exhibit a sinusoidal curve, with a straight-line distance from one amplitude peak to the next no less than 2030 mm and no warping. The rope should be in a stress-free state when unwinding, and twisting should not exceed 180 degrees after unwinding for 5 meters. Summary of the Invention

[0003] The invention aims to solve the technical problems that the steel wire rope does not twist more than 180 degrees and does not warp when placed horizontally.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A method for twisting a 1×2-Φ3.2mm steel wire rope for a mechanical spring, comprising the following steps:

[0006] Step 1: Install a horizontal group and a vertical group straightener behind the tile seat in the twisting equipment, both with 23 bending rollers, roller diameter is 6.25 times the rope diameter ± 10%, roller end distance is 1.8 to 2.0 times the roller diameter, the diameter of the bending arc groove in the roller is 1.55 times the rope diameter ± 10%, the bending depth is 0.5 to 0.8 times the rope diameter, and the wire rope torsion is -45° to +45°;

[0007] Step 2: Install a horizontal straightener in front of the wire arrangement device, which runs synchronously with the wire arrangement device. It has 7 bending rollers, with a roller diameter of 6.25 times ± 10% of the rope diameter, a roller end distance of 1.8 to 2.0 times the roller diameter, a bending arc groove diameter of 1.55 times ± 10% of the rope diameter, and a bending depth of 0.2 to 0.4 times the rope diameter.

[0008] Step 3: Connect the twisting steel wire to the traction rope, start the twisting equipment to shape the wire rope, press the wire shoe, and after the wire rope head is opened on the traction wheel for one circle, adjust the bending depth of the horizontal and vertical group straighteners to start production, until the wire rope head is opened out of the wire arrangement device and goes up to the large wire-taking wheel, check the wire rope torsional force -45° to +45°, and then adjust the bending depth of the horizontal group straightener to normally produce 1×2-Φ3.2mm mechanical spring wire rope.

[0009] The beneficial effects of adopting the above technical solution are:

[0010] The present invention has a horizontal and vertical group straightener installed behind the tile seat and a horizontal group straightener installed in front of the wire arranging device that runs synchronously with the wire arranging device. During the manufacturing process, they are used to eliminate the twisting stress of the wire rope, the residual drawing stress of the wire rope and the bending deformation caused by the traction force on the traction wheel, so that the wire rope has good linearity, no warping, is in a stress-free state, and the rope twist does not exceed 180 degrees when placed horizontally. DETAILED DESCRIPTION

[0011] In order to make the objectives, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0012] A method for twisting a 1×2-Φ3.2mm steel wire rope for a mechanical spring, comprising the following steps:

[0013] 1. First, install the straighteners required for production behind the tile seat and in front of the wire arranging device;

[0014] 1.1 Install a horizontal group and a vertical group straightener behind the tile seat in the twisting equipment, which are 23 bending rollers, the roller diameter is 6.25 times the rope diameter ± 10%, the roller end distance is 1.8 to 2.0 times the roller diameter, the diameter of the bending arc groove in the roller is 1.55 times the rope diameter ± 10%, the bending depth is 0.5 to 0.8 times the rope diameter, and the wire rope torsion is -45° to +45°;

[0015] 1.2 Install a horizontal straightener in front of the wire arrangement device, which runs synchronously with the wire arrangement device. It has 7 bending rollers, with a roller diameter of 6.25 times ± 10% of the rope diameter, a roller end distance of 1.8 to 2.0 times the roller diameter, a roller bending arc groove diameter of 1.55 times ± 10% of the rope diameter, and a bending depth of 0.2 to 0.4 times the rope diameter.

[0016] 2. Then connect the twisting steel wire to the traction rope, start the twisting equipment to shape the wire rope, press the wire pressing shoe, and after the wire rope head is turned on the traction wheel for one circle, adjust the bending depth of the horizontal and vertical group straighteners to start production. After the wire rope head is turned out of the cable arranger and goes up to the large take-up wheel, check the wire rope torsion -45° to +45°, and then adjust the bending depth of the horizontal group straightener to start normal production.

[0017] The present invention installs a horizontal group and a vertical group straightener behind the tile seat, and installs a horizontal group straightener in front of the wire arrangement device to run synchronously with the wire arrangement device to eliminate stress and meet product technical requirements.

Claims

1. A method for twisting a 1×2-Φ3.2mm steel wire rope for a mechanical spring, characterized by: It includes the following steps: Step 1: Install a horizontal group and a vertical group straightener behind the tile seat in the twisting equipment, both with 23 bending rollers, roller diameter is 6.25 times the rope diameter ± 10%, roller end distance is 1.8 to 2.0 times the roller diameter, the diameter of the bending arc groove in the roller is 1.55 times the rope diameter ± 10%, the bending depth is 0.5 to 0.8 times the rope diameter, and the wire rope torsion is -45° to +45°; Step 2: Install a horizontal straightener in front of the wire arrangement device, which runs synchronously with the wire arrangement device. It has 7 bending rollers, with a roller diameter of 6.25 times ± 10% of the rope diameter, a roller end distance of 1.8 to 2.0 times the roller diameter, a bending arc groove diameter of 1.55 times ± 10% of the rope diameter, and a bending depth of 0.2 to 0.4 times the rope diameter. Step 3: Connect the twisting steel wire to the traction rope, start the twisting equipment to shape the wire rope, press the wire shoe, and after the wire rope head is opened on the traction wheel for one circle, adjust the bending depth of the horizontal and vertical group straighteners to start production, until the wire rope head is opened out of the wire arrangement device and goes up to the large wire-taking wheel, check the wire rope torsional force -45° to +45°, and then adjust the bending depth of the horizontal group straightener to normally produce 1×2-Φ3.2mm mechanical spring wire rope.