Continuous online semi-hardness value control device and method for copper conductor for electromagnetic wire
By designing a continuous online semi-hard value control device of copper conductor including high-frequency head device, the oscillation current and induction frequency are output by using the oscillation generator to solve the problem of unstable semi-hard value after softening of copper conductors, and stable and uniform The semi-hard value control simplifies the process flow and improves production efficiency.
Patent Information
- Application Number
- CN201810732083.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-07-05
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2038-07-05
AI Technical Summary
In the prior art, the semi-hard value maintained by copper conductors after softening is unstable, and it is difficult to ensure uniformity and stability during continuous online production, and additional mechanical deformation processes are required to achieve the specified semi-hard value.
A copper conductor for electromagnetic wire including a first track traction mechanism, a guide wheel, a nylon pressure wheel, a high frequency head device, a connecting conduit, a cooling water tank, a hot air blow drying device, a guide wheel and a second track traction mechanism are designed. The online semi-hard value control device outputs the oscillation current and induction frequency through the oscillation generator in the high-frequency head device, controls the heating and softening process of the copper conductor, and realizes automatic control of the semi-hard value.
The stable semi-hard value control of copper conductors is realized, the process flow is simplified, the control accuracy and production efficiency are improved, energy consumption is reduced, and additional mechanical deformation processes are avoided. The device structure is simple and the cost is low.
Smart Images
Figure CN108570552B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of electromagnetic wires, and in particular to a device and method for controlling a continuous online semi-hardness value of a copper conductor for the electromagnetic wire. Background Art
[0002] There are many radiation heating methods for annealing stress in the copper conductor area. However, there is still instability in softening the copper conductor and maintaining a semi-hard value. Often, after softening, the copper conductor has to go through another process to make it undergo another mechanical deformation to reach the specified semi-hard value. Due to continuous online production, it is difficult to ensure the uniformity and stability of the semi-hard value of the copper conductor produced by a mechanical method. Summary of the invention
[0003] In order to solve the above technical problems, the present invention provides a device for controlling the continuous online semi-hardness value of a copper conductor for an electromagnetic wire with a simple structure and high working efficiency, and provides a method for controlling the continuous online semi-hardness value of a copper conductor for an electromagnetic wire.
[0004] The technical solution of the present invention to solve the above-mentioned problem is: a continuous online semi-hardness value control device for copper conductors for electromagnetic wires, comprising a first crawler traction mechanism, a guide wheel, a nylon pressure wheel, a high-frequency head device, a connecting duct, a cooling water tank, a hot air drying device, a guide pressure wheel, and a second crawler traction mechanism; the first crawler traction mechanism, the guide wheel, the nylon pressure wheel, the high-frequency head device, the connecting duct, the cooling water tank, the hot air drying device, the guide pressure wheel, and the second crawler traction mechanism are arranged in sequence from left to right, and the copper conductor to be processed is successively pulled by the first crawler traction mechanism, guided by the guide wheel, and sent to the high-frequency head device after the nylon pressure wheel, and the high-frequency head device heats and softens the copper conductor and obtains a qualified semi-hardness value of the softened copper conductor; the heated and softened copper conductor is sent to the cooling water tank through the connecting duct for cooling, and then sent to the hot air drying device for drying, and then guided by the guide pressure wheel and pulled out by the second crawler traction mechanism.
[0005] The above-mentioned copper conductor continuous online semi-hard value control device for electromagnetic wire, the high-frequency head device includes a box body, a spiral tube, an inlet flange, and an outlet flange, the inlet flange and the outlet flange are respectively installed at both ends of the box body, and the box body, the inlet flange and the outlet flange are connected to each other. The inside of the box body, the inlet flange and the outlet flange are cavities, and a spiral tube is arranged in the box body, and cooling circulating water is input into the spiral tube. The two ends of the spiral tube are connected to an oscillation generating device, and the oscillation generating device outputs an oscillating current. By controlling the oscillation current and the induction frequency, the copper conductor is heated and softened, and the semi-hard value of the copper conductor is obtained.
[0006] The above-mentioned copper conductor continuous online semi-hard value control device for electromagnetic wire has a box filled with protective gas.
[0007] The above-mentioned copper conductor continuous online semi-hard value control device for electromagnetic wire, the first crawler traction mechanism and the second crawler traction mechanism are kept synchronous through electrical control, and the line speed of the first crawler traction mechanism and the second crawler traction mechanism is kept at 4-20m / min.
[0008] The above-mentioned copper conductor continuous online semi-hardness value control device for electromagnetic wire, the cooling water tank is equipped with deionized water and a cooling device, the conductivity of the deionized water is less than 40μm, the water turbidity is less than 2 NTU, the water temperature is less than 20℃, and the pH value is greater than 7.
[0009] The above-mentioned copper conductor continuous online semi-hardness value control device for electromagnetic wire, the temperature of the hot air blown out by the hot air drying device is 10-40°C.
[0010] The above-mentioned copper conductor continuous online semi-hard value control device for electromagnetic wire, the oscillation current output by the oscillation generating device is 80-210A, and the induction frequency is 20-40kHz.
[0011] The above-mentioned copper conductor for electromagnetic wire is continuously used in the online semi-hardness control device, and the semi-hardness range of the copper conductor is obtained to be 100 to 270N / mm2.
[0012] A method for controlling the continuous online semi-hardness value of a copper conductor for an electromagnetic wire comprises the following steps:
[0013] 1) Keep the first crawler traction mechanism and the second crawler traction mechanism in synchronous operation through electrical control, and feed the copper conductor into the first crawler traction mechanism;
[0014] 2) Feed the copper conductor into the high-frequency head device through the guide wheel and nylon pressure wheel;
[0015] 3) The oscillation generating device in the high-frequency head device outputs an oscillating current. By controlling the oscillating current and the induction frequency, the copper conductor is heated and softened, and the semi-hard value of the copper conductor is obtained;
[0016] 4) The cooling water tank cools the copper conductor sent from the high-frequency head device;
[0017] 5) The hot air drying device dries the cooled copper conductor;
[0018] 6) The blow-dried copper conductor is guided by the guide pressure wheel and then pulled out by the second crawler traction mechanism.
[0019] In the above-mentioned method for controlling the semi-hardness value of copper conductors for electromagnetic wires, in the step 3), the oscillation current output by the oscillation generating device is 80-210A, and the induction frequency is 20-40kHz.
[0020] The beneficial effects of the present invention are:
[0021] 1. The control device of the present invention comprises a first crawler traction mechanism, a guide wheel, a nylon pressure wheel, a high-frequency head device, a connecting duct, a cooling water tank, a hot air drying device, a guide pressure wheel, and a second crawler traction mechanism which are arranged in sequence. An oscillation current is outputted through an oscillation generating device in the high-frequency head device. By controlling the oscillation current and the induction frequency, the copper conductor is heated and softened, thereby obtaining a corresponding semi-hard value of the copper conductor. The control device has the advantages of simple structure, low cost, and high working efficiency.
[0022] 2. The control method of the present invention has a simple process and reduces the process of mechanically deforming the copper conductor again; the mechanical properties of the product have high control accuracy, low energy consumption and high production capacity.
[0023] 3. The control method of the present invention realizes automatic control, adopts input setting mode for relevant processes, replaces the manual control mode based on experience, and improves the control accuracy. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a schematic diagram of the structure of the control device of the present invention, and the arrow in the figure indicates the forward direction of the copper conductor.
[0025] Figure 2 for Figure 1 A schematic diagram of the structure of the high-frequency head device in the figure, A and B represent air inlets, C represents water inlet, D represents water outlet, E represents line inlet, and F represents line outlet.
[0026] Figure 3 This is a curve diagram of the change of semi-hard value with high-frequency oscillating current. DETAILED DESCRIPTION
[0027] The present invention will be further described below in conjunction with the accompanying drawings and examples.
[0028] like Figure 1 , Figure 2As shown, a continuous online semi-hard value control device for copper conductors for electromagnetic wires comprises a first crawler traction mechanism 1-1, a guide wheel 2, a nylon pressure wheel 3, a high-frequency head device 4, a connecting duct 5, a cooling water tank 6, a hot air drying device 7, a guide pressure wheel 8, and a second crawler traction mechanism 1-2; the first crawler traction mechanism 1-1, the guide wheel 2, the nylon pressure wheel 3, the high-frequency head device 4, the connecting duct 5, the cooling water tank 6, the hot air drying device 7, the guide pressure wheel 8, and the second crawler traction mechanism 1-2. 2 is arranged from left to right in sequence, the copper conductor 10 to be processed is pulled by the first crawler traction mechanism 1-1, guided by the guide wheel 2, and sent to the high-frequency head device 4 after being guided by the nylon pressure wheel 3. The high-frequency head device 4 heats and softens the copper conductor 10 and obtains the semi-hard value of the qualified softened copper conductor 10; the heated and softened copper conductor 10 is sent to the cooling water tank 6 through the connecting duct 5 for cooling, and then sent to the hot air drying device 7 for drying, and then guided by the guide pressure wheel 8 and pulled out by the second crawler traction mechanism 1-2.
[0029] The first crawler traction mechanism 1-1 and the second crawler traction mechanism 1-2 are kept synchronously through electrical control and their linear speeds are kept consistent. The linear speeds of the first crawler traction mechanism 1-1 and the second crawler traction mechanism 1-2 are kept at 4 to 20 m / min, and the copper conductor 10 has no vibration during high-frequency oscillation heating and softening.
[0030] The guide wheel 2, the nylon pressure wheel 3 and the guide pressure wheel 8 cooperate to ensure that the copper conductor 10 does not jump when it moves continuously on the line.
[0031] The high-frequency head device 4 includes a box body 4-1, a spiral tube 4-2, an inlet flange 4-3, an outlet flange 4-4, and a flange fixing screw 4-5. The inlet flange 4-3 and the outlet flange 4-4 are respectively installed at both ends of the box body 4-1, and the box body 4-1, the inlet flange 4-3, and the outlet flange 4-4 are connected to each other. The center line of the cavity coincides with the center line of the inlet and outlet of the copper conductor 10, and is filled with a protective gas to prevent the copper conductor 10 from being easily oxidized after heating. The protective gas can be carbon dioxide; a spiral tube 4-2 is provided in the box body 4-1, and both ends of the spiral tube 4-2 are connected to an oscillation generating device, and the oscillation generating device outputs an oscillating current. By controlling the oscillation current and the induction frequency, the copper conductor 10 is heated and softened, and a qualified semi-hard value of the softened copper conductor 10 is obtained. The semi-hard value of the conductor is related to the size of the specification. To obtain the same semi-hard value for conductors of different specifications, the parameters of the oscillation current and the induction frequency are different. The semi-hardness value of a conductor of the same specification is inversely proportional to the oscillating current and directly proportional to the induction frequency. The larger the oscillating current and the smaller the induction frequency, the more fully the conductor softens and the smaller the semi-hardness value. The relationship curve between the semi-hardness value and the oscillating current of a conductor of a certain specification at a fixed speed is as follows: Figure 3As shown. It can be seen that the semi-hard value gradually decreases with the increase of high-frequency current, and it decreases particularly fast in a certain current range. Beyond this range, the semi-hard value basically maintains a stable state and decreases very slowly. Therefore, it is necessary to obtain the required semi-hard value by reasonably setting the oscillation current and the induction frequency according to the wire gauge size. The semi-hard value range of the copper conductor 10 is 100-270N / mm2. The oscillation current output by the oscillation generating device is 80-210A, and the induction frequency is 20-40kHz.
[0032] The spiral tube 4-2 is a copper tube. Since the spiral tube 4-2 needs to conduct electricity, high temperature may burn out the spiral tube 4-2, so the tube needs to be cooled. In order to prevent the spiral tube 4-2 from generating scale due to high temperature and clogging the pipeline, the spiral tube 4-2 must be filled with circulating deionized cooling water to reduce the precipitation of scale in the tube wall.
[0033] The flange fixing screw 4-5 is connected to the connecting conduit 5, and the connecting conduit 5 is removable, and its connection is connected by flange, and is fixed by manually twisting the screw. The connection port is buffered by soft material and its sealing effect is guaranteed; the outlet end of the connecting conduit 5 is immersed in the water in the cooling water tank 6 to prevent oxygen from entering the outlet end. A transverse guide roller is installed in the outlet port, and the connecting conduit 5 is inclined, and the outlet end is lower than the inlet end to prevent water from backflowing into the spiral tube 4-2 and burning the spiral tube 4-2.
[0034] The cooling water tank 6 is provided with deionized water and a cooling device. The deionized water is internally circulated. The process requirements are: the conductivity of the deionized water is less than 40 μm, the water turbidity is less than 2 NTU, the water temperature is less than 20° C., the pH value is greater than 7, and it contains about 5% alcohol.
[0035] The hot air drying device 7 is used to ensure that the surface of the copper conductor 10 is free of water and the temperature can be reduced to room temperature; the wind is filtered air with a certain temperature; the temperature of the blown hot air is 10-40°C.
[0036] A method for controlling the continuous online semi-hardness value of a copper conductor for an electromagnetic wire comprises the following steps:
[0037] 1) Keeping the first crawler traction mechanism 1-1 and the second crawler traction mechanism 1-2 in synchronous operation through electrical control, feeding the copper conductor 10 into the first crawler traction mechanism 1-1;
[0038] 2) The copper conductor 10 is fed into the high-frequency head device 4 through the guide wheel 2 and the nylon pressure wheel 3;
[0039] 3) The oscillation generating device in the high-frequency head device 4 outputs an oscillating current, and by controlling the oscillating current and the induction frequency, the copper conductor 10 is heated and softened, and the semi-hard value of the copper conductor 10 is obtained;
[0040] 4) The cooling water tank 6 cools the copper conductor 10 sent out from the high-frequency head device 4;
[0041] 5) The hot air drying device 7 dries the cooled copper conductor 10;
[0042] 6) The dried copper conductor 10 is guided by the guide pressure wheel 8 and then pulled out by the second crawler traction mechanism 1-2.
[0043] In the above-mentioned method for controlling the semi-hardness value of copper conductors for electromagnetic wires, in the step 3), the oscillation current output by the oscillation generating device is 80-210A, and the induction frequency is 20-40kHz.
Claims
1. A continuous online semi-hardness value control device for copper conductors for electromagnetic wires, characterized in that: It includes a first crawler traction mechanism, a guide wheel, a nylon pressure wheel, a high-frequency head device, a connecting duct, a cooling water tank, a hot air drying device, a guide pressure wheel, and a second crawler traction mechanism; the first crawler traction mechanism, the guide wheel, the nylon pressure wheel, the high-frequency head device, the connecting duct, the cooling water tank, the hot air drying device, the guide pressure wheel, and the second crawler traction mechanism are arranged from left to right in sequence, and the copper conductor to be processed is sequentially pulled by the first crawler traction mechanism, guided by the guide wheel, and sent to the high-frequency head device after the nylon pressure wheel, and the high-frequency head device heats and softens the copper conductor and obtains a qualified semi-hard value of the softened copper conductor; the heated and softened copper conductor is sent to the cooling water tank through the connecting duct for cooling, and then sent to the hot air drying device for drying, and then guided by the guide pressure wheel and pulled out by the second crawler traction mechanism; The high-frequency head device comprises a box body, a spiral tube, an inlet flange, an outlet flange and a flange fixing screw, wherein the inlet flange and the outlet flange are respectively installed at two ends of the box body, and the box body, the inlet flange and the outlet flange are connected to each other. The box body is provided with a spiral tube, and cooling circulating water is input into the spiral tube. Both ends of the spiral tube are connected to an oscillation generating device, and the oscillation generating device outputs an oscillating current. By controlling the oscillation current and the induction frequency, the copper conductor is heated and softened, and the semi-hard value of the copper conductor is obtained; The flange fixing screw is connected to the connecting conduit, which is removable, and its connection is connected by flange connection, and is fixed by manually twisting the screw, and its connection port is buffered by soft material to ensure its sealing effect; the outlet end of the connecting conduit is immersed in the water in the cooling water tank to prevent the outlet end from entering oxygen, and a transverse guide roller is installed in the outlet port, and the connecting conduit is inclined, and the outlet end is lower than the inlet end to prevent water from flowing back into the spiral tube and burning the spiral tube; The oscillation current output by the oscillation generating device is 80-210A, the induction frequency is 20-40kHz, and the semi-hardness value range of the copper conductor is 100-270N / mm2.
2. The continuous online semi-hardness value control device for copper conductors for magnet wires according to claim 1, characterized in that: The box is filled with protective gas.
3. The continuous online semi-hardness value control device for copper conductors for magnet wires according to claim 1, characterized in that: The first crawler traction mechanism and the second crawler traction mechanism are kept synchronously through electrical control, and the linear speed of the first crawler traction mechanism and the second crawler traction mechanism is kept at 4-20 m / min.
4. The continuous online semi-hardness value control device for copper conductor for magnet wire according to claim 1, characterized in that: The cooling water tank is provided with deionized water and a cooling device. The conductivity of the deionized water is less than 40 μm, the water turbidity is less than 2 NTU, the water temperature is less than 20° C., and the pH value is greater than 7.
5. The continuous online semi-hardness value control device for copper conductors for magnet wires according to claim 1, characterized in that: The temperature of the hot air blown out by the hot air drying device is 10-40°C.
6. A method for controlling the continuous online semi-hardness value of a copper conductor for an electromagnetic wire based on the continuous online semi-hardness value control device for a copper conductor for an electromagnetic wire according to any one of claims 1 to 5, comprising the following steps: 1) Keep the first crawler traction mechanism and the second crawler traction mechanism in synchronous operation through electrical control, and feed the copper conductor into the first crawler traction mechanism; 2) Feed the copper conductor into the high-frequency head device through the guide wheel and nylon pressure wheel; 3) The oscillation generating device in the high-frequency head device outputs an oscillating current. By controlling the oscillating current and the induction frequency, the oscillating current output by the oscillating generating device is 80-210A, and the induction frequency is 20-40kHz, so that the copper conductor is heated and softened, and the semi-hard value of the copper conductor is obtained; 4) The cooling water tank cools the copper conductor sent from the high-frequency head device; 5) The hot air drying device dries the cooled copper conductor; 6) The blow-dried copper conductor is guided by the guide pressure wheel and then pulled out by the second crawler traction mechanism.