Double twisting rope laying machine

Abstract

The invention discloses a double twisting rope laying machine which comprises a core wire laying machine, a core wire tension mechanism, a surface wire laying mechanism, a single wire pre-twisting machine, a wire collecting mechanism and a wire-rewinding machine arranged sequentially, wherein the core wire tension mechanism comprises a broken wire detecting device, a wire roller, a tension control device and a tension detecting device; the core wire output tension is detected by the tension detecting device, and if the tension exceeds a set tension range, the core wire output tension is adjusted by the tension control device to realize accurate control of the core wire laying tension; and the single wire pre-twisting machine comprises a motor, a transmission component and a plurality of groups of rotor components which are arranged at the front surface and the back surface of a stand. Through the rotation of each group of rotor components, the single wire pre-twisting process is realized and the single wire stress is eliminated, thereby being favorable to twisting and forming, and finally, the twisted cords have good straightness, stable residual torsion and high product quality and is difficult to loose; and the specifications of the producible cords are 3+9+15*0.22, 3+9+15*0.175 and 0.25+(6+12)*0.22.

Description

technical field [0001] The invention relates to a double-twisting rope forming machine, which is a special mechanical device for producing steel cords for automobile tires and truck tires, and steel wire ropes for conveyor belts. The cord structures mainly produced are 3+9+15×0.22, 3 +9+15×0.175, 0.25+(6+12)×0.22. Background technique [0002] At present, the same type of double-twisting machine equipment is generally composed of a core wire pay-off machine, a rotary upper thread pay-off machine, a wire gathering mechanism, an external twisting machine, and a wire take-up machine. It mainly has the following deficiencies: 1. Core wire The control of the pay-off tension is mainly completed inside the core wire pay-off machine. Because the required pay-off tension is large and the tension fluctuates greatly, it is difficult to ensure that the pay-off tension from the full reel to the empty reel remains constant; 2. Because the upper thread pay-off adopts It is the method of r...

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Problems solved by technology

[0002] At present, the same type of double twisting machine equipment is generally composed of a core wire pay-off machine, a rotary upper thread pay-off machine, a wire gathering mechanism, an external twisting machine, and a wire take-up machine. It mainly has the following deficiencies: 1. Core wire The control of the pay-off tension is mainly completed inside the core wire pay-off machine. Because the required pay-off tension is large and the tension fluctuates greatly, it is difficult to ensure that the pay-off tension from the full reel to the empty reel remains constant; 2. Because the upper thread pay-off adopts It is the method of rotary noodle thread pay-off machine. The single-filament pay-off I-shaped wheel is inside the cradle of the rotary pay-off machine, and the monofilament passes through the flywheels at both ends of the cradle to rotate and pay off. Due to the large span of the pay-off flywheels at both ends and the diameter of the flywheel Larger, the speed of monofilament pre-twisting is limited, and increasing the speed will cause the monofilament to break; 3. After the cord is assembled, the cord is continuously twisted by the external twisting machine and then untwisted. The surface quality of the cord The stability is difficult to control, and there is also the possibility of cord twisting and loosening

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