Device for precisely controlling the tension of a steel wire tail

Abstract

A device for precisely controlling the tension of a steel wire tail line, comprising a support, a magnetic plate fixed to the top of the support, two steel wire guide rollers rotatably arranged at the left and right ends of the magnetic plate, the magnetic plate being an electromagnetic magnetic plate, the electromagnetic magnetic plate being an industrial equipment for generating a controllable magnetic field by using electromagnetic principle, the highest point of the guide roller being higher than the upper surface of the magnetic plate, a longitudinal threading hole being arranged in the magnetic plate, and a cable being arranged through the threading hole, the cable being part of a circuit for controlling the magnetic field of the electromagnetic magnetic plate. Compared with the prior art, the device has the magnetic plate, can adsorb the steel wire tail line on the magnetic plate, avoids problems such as loose winding and disorder of the steel wire, can be normally used, and saves raw materials.

Description

Technical Field

[0001] This utility model relates to the technical field of calendering equipment in the tire industry, specifically to a device for controlling the tension of the tail wire of steel wire, which is particularly suitable for the precise control of the tail wire tension during the production of steel wires of different diameters. Background Technology

[0002] In the production and processing of steel wire, there is a step where the wire is unloaded from the roller and enters the next stage.

[0003] When the tail of the steel wire falls off the winding roller, it loses its restraint and is affected by inertia, resulting in problems such as loosening and tangling of multiple strands of steel wire, which affects the smooth progress of subsequent processing steps.

[0004] Therefore, the existing technology involves cutting it off, discarding the tail wire (approximately 20-30 meters in length), which results in material waste. Utility Model Content

[0005] The purpose of this invention is to provide a device for controlling the tension of the steel wire tail, thereby preventing problems such as slackness and tangling of the steel wire.

[0006] The technical solution of this application is as follows: A device for controlling the tension of a steel wire tail includes a support, a magnetic plate fixed to the top of the support, and a steel wire guide roller rotatably mounted at each of the left and right ends of the magnetic plate. The magnetic plate is an electromagnetic magnetic plate, which is an industrial device that uses electromagnetic principles to generate a controllable magnetic field. The highest point of the guide roller is higher than the upper surface of the magnetic plate. The magnetic plate has longitudinal wire-passing holes through which a cable passes. The cable is part of the circuit that controls the magnetic field of the electromagnetic magnetic plate.

[0007] The circuit that controls the magnetic field of the electromagnetic plate is equipped with a current regulator.

[0008] A side bracket is fixed on the support frame, and two vertical screws are fixed on the side bracket. The shaft at the end of the wire guide roller is rotatably connected to the support plate. The support plate is sleeved on the outside of the vertical screws. Each vertical screw has two nuts threaded into it: an upper nut and a lower nut. The support plate is located between the upper nut and the lower nut.

[0009] The magnetic plate has a hollow section that is open at both ends, and an electric fan is installed at the end of the hollow section.

[0010] A temperature sensor is installed on the magnetic plate. The temperature sensor is electrically connected to the PLC, and the PLC is electrically connected to the fan.

[0011] The technical benefits are as follows: Compared with the existing technology, this utility model is equipped with a magnetic plate, which can attract the steel wire tail to it, avoiding problems such as loosening and tangling of the steel wire, and can also be used normally, saving raw materials. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention.

[0013] Figure 2 for Figure 1 Enlarged diagram at the top.

[0014] Figure 3 yes Figure 2 An enlarged diagram of the left side.

[0015] Figure 4 This is a top view of the present invention. Detailed Implementation

[0016] like Figure 1-4 A device for controlling the tension of a steel wire tail includes a bracket 10, a magnetic plate 20 fixed at the top of the bracket 10, and a steel wire guide roller 30 rotatably mounted at both ends of the magnetic plate 20. The magnetic plate 20 is an electromagnetic magnetic plate, which is an industrial device that uses electromagnetic principles to generate a controllable magnetic field. The highest point of the guide roller 30 is higher than the upper surface 21 of the magnetic plate 20.

[0017] The magnetic plate 20 has a longitudinal wire hole 22 through which a cable (not shown in the figure) is threaded. This cable is part of the circuit that controls the magnetic field of the electromagnetic plate.

[0018] To facilitate control of the magnetic field strength, a current regulator (not shown in the diagram) is installed on the circuit controlling the magnetic field of the electromagnetic plate. This allows it to accommodate steel wires of different thicknesses.

[0019] like Figure 2-3 When the diameter of the steel wire changes, in order to adjust the height of the steel wire guide roller 30 to adapt to it, a side bracket 11 is fixed on the bracket 10, and two vertical screws 12 are fixed on the side bracket 11. The rotating shaft 31 at the end of the steel wire guide roller 30 is rotatably connected to the support plate 32. The support plate 32 is sleeved on the outside of the vertical screws 12. Each vertical screw 12 is threaded with two nuts: an upper nut 34 and a lower nut 33. The support plate 32 is located between the upper nut 34 and the lower nut 33.

[0020] By adjusting the upper nut 34 and the lower nut 33, the height of the support plate 32 can be adjusted, which in turn adjusts the height of the wire guide roller 30.

[0021] like Figure 2 In order to facilitate heat dissipation (the heat generated by the friction between the steel wire 90 and the upper surface 21 of the magnetic plate 20), the magnetic plate 20 is provided with a hollow part that is open at both ends, and an electric fan 23 is provided at the end of the hollow part.

[0022] To enable automatic drive of the electric fan 23, a temperature sensor (not shown in the figure) is installed on the magnetic plate 20. The temperature sensor is electrically connected to the PLC (not shown in the figure), and the PLC is electrically connected to the electric fan 23.

[0023] Its working principle is as follows: This device is positioned downstream of the roller.

[0024] When using, such as Figure 1-4 It includes the following steps: S1. At the beginning, the cable threaded through the wire hole 22 is not energized, the magnetic plate 20 has no magnetism, and the free end of the steel wire 90 on the roller gradually passes through the guide of the two guide rollers 30. Figure 1 (To the left), and finally pulled by the traction component, it enters the next stage, which is the same as the existing technology, so I will not go into details.

[0025] S2. When the tail wire of the steel wire 90 falls off the winding roller, the cable through the wire hole 22 is energized, the magnetic plate 20 generates magnetic force, and the tail wire of the steel wire 90 is attracted to the upper surface 21 of the magnetic plate 20. Under the traction of the traction component, it enters the next stage. During this process, the tail wire is always attracted to the upper surface 21 of the magnetic plate 20, and there will be no problems such as steel wire loosening or tangling. This part of the steel wire is effectively utilized.

[0026] S3. After all the tail wires have entered the next stage, the cable through the control hole 22 is de-energized.

[0027] Features of this application: S1. The electromagnet's magnetic force can ensure the tension of a single steel wire tail wire is between 800gf and 1600gf on-site, suitable for steel wire diameters ranging from φ1.03mm to 5.7mm, and the magnetic force is adjustable. By controlling the power supply to adjust the current to the electromagnet, according to Ampere's law, changes in current can alter the strength of the electromagnet's magnetism, thereby achieving precise control of the steel wire tail wire tension. Whether it's a thinner 1.03mm steel wire or a thicker 5.7mm steel wire, this device can maintain appropriate tail wire tension, ensuring stable production.

[0028] S2. To prevent the electromagnet from overheating and affecting its performance and service life, the electromagnet in this device is equipped with a temperature detection device and a ventilation and cooling device. The temperature detection device monitors the temperature of the electromagnet in real time. When the temperature reaches the preset threshold, the ventilation and cooling device (fan 23) automatically starts, using forced airflow to remove the heat generated by the electromagnet, ensuring that the electromagnet can work continuously, for a long time, and stably, and avoiding problems such as decreased magnetic force or equipment damage due to overheating.

[0029] S3. The electromagnet magnetic plate relies on the guide rollers on both sides to separate the magnetic plate from the steel wire during the normal production process of the steel wire, avoiding friction between the magnetic plate and the steel wire, effectively preventing steel wire wear, and improving the product quality and production efficiency of the steel wire.

[0030] S4. Furthermore, the electromagnet in this device can be disconnected at any time. When the electromagnet is not needed during production, its power supply can be cut off by controlling the power supply, avoiding energy waste caused by prolonged power supply, reducing production costs, minimizing equipment wear and tear, and extending the overall service life of the device. In summary, this device has advantages such as reasonable structure, precise control, and energy efficiency, and has good market application prospects and promotion value.

[0031] Other technical requirements: 1. Electromagnet power design: Based on the wire diameter (φ1.03mm - 5.7mm) and target tension (800gf - 1600gf), the required magnetic field strength is calculated using electromagnet formulas. Combined with the electromagnet dimensions (1200mm*800mm), the appropriate coil turns, wire diameter, and other parameters are designed to determine the required power of the electromagnet.

[0032] 2. Power supply and accessory selection: Based on the electromagnet's design power, select a switching power supply with a matching rated output power to ensure stable power supply; select an appropriate model of thyristor according to the current size to ensure current regulation accuracy; at the same time, select cable specifications reasonably according to current carrying capacity standards to avoid overload and overheating.

[0033] 3. Cooling Device Design: Based on the heat generated by the electromagnet power, the power of the cooling device is determined through heat balance calculations. An axial fan or heat sink combination is used to ensure that the electromagnet temperature remains within a safe threshold during prolonged operation.

[0034] 4. Temperature Detection and Control: Temperature sensors are installed in key parts inside the electromagnet to monitor temperature data in real time. When the temperature reaches the preset upper limit, the cooling device is triggered; once the temperature drops to a safe range, cooling automatically stops, achieving intelligent temperature control.

[0035] 5. Selection of guide roller diameter and material: Based on the height of the magnetic plate and the stress analysis under the maximum tension condition, select a suitable guide roller to effectively avoid steel wire wear.

Claims

1. A device for precisely controlling the tension of a steel wire tail line, comprising a support (10), characterized in that: A magnetic plate (20) is fixed at the top of the bracket (10). A steel wire guide roller (30) is provided at both the left and right ends of the magnetic plate (20). The magnetic plate (20) is an electromagnetic magnetic plate. The highest point of the guide roller (30) is higher than the upper surface (21) of the magnetic plate (20). A longitudinal wire hole (22) is provided inside the magnetic plate (20). A cable is passed through the wire hole (22). The cable is part of the circuit that controls the magnetic field of the electromagnetic magnetic plate.

2. The device for precisely controlling the tension of the steel wire tail as described in claim 1, characterized in that: The circuit that controls the magnetic field of the electromagnetic plate is equipped with a current regulator.

3. The device for precisely controlling the tension of the steel wire tail as described in claim 2, characterized in that: A side bracket (11) is fixed on the bracket (10), and two vertical screws (12) are fixed on the side bracket (11). The shaft (31) at the end of the wire guide roller (30) is rotatably connected to the support plate (32). The support plate (32) is sleeved on the vertical screws (12). Each vertical screw (12) is threaded with two nuts: an upper nut (34) and a lower nut (33). The support plate (32) is located between the upper nut (34) and the lower nut (33).

4. The device for precisely controlling the tension of the steel wire tail as described in claim 3, characterized in that: The magnetic plate (20) has a hollow section that is open at both ends, and an electric fan (23) is provided at the end of the hollow section.

5. The device for precisely controlling the tension of the steel wire tail as described in claim 4, characterized in that: A temperature sensor is provided on the magnetic plate (20), the temperature sensor is electrically connected to the PLC, and the PLC is electrically connected to the fan (23).

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