Copper alloy wire tension control device and method

Abstract

The present invention relates to the technical field of conveying structures, and in particular to a copper alloy wire tension control device and method, comprising a machine platform that plays a supporting role, and also comprising: a pushing unit for generating a constant downward pulling force, the pushing unit comprising a friction plate, a moving seat and an adsorption structure, the friction plate is fixed on the machine platform, the moving seat is frictionally and slidingly mounted on the friction plate, and the adsorption structure is used to adjust the friction between the friction plate and the moving seat to change the comprehensive force of the friction plate when it is affected by gravity; the present invention uses gravity to provide a constant and stable force source for the wire, and compared with traditional structures such as springs or hydraulic rods, the tension provided by gravity is more stable, avoiding the problem of tension fluctuation caused by frequent adjustment; by adjusting the friction between the friction plate and the moving seat, and then cooperating with the effect of gravity on the moving seat, the extrusion force of the moving seat on the wire can be accurately controlled, thereby achieving accurate regulation of the wire tension.

Description

Technical Field

[0001] The invention relates to the technical field of conveying structures, and in particular to a device and method for controlling the tension of a copper alloy wire. Background Art

[0002] Copper alloy wires are widely used in power transmission, communications, electronic equipment, aerospace and other fields due to their excellent conductivity, mechanical strength and corrosion resistance. With the continuous improvement of modern industry's requirements for wire performance, the tension of the wire during winding has become one of the key factors affecting its performance and service life. Insufficient tension may cause the wire to loosen, affect the winding length of the wire, and easily cause the wire to loosen and fall off; while excessive tension may cause the wire to break or be damaged. Therefore, precise control of the tension of copper alloy wires has become an important technical requirement in its production process.

[0003] The conductor needs to maintain a specified tension during the winding process. The traditional method of controlling the tension is to use structures such as springs and hydraulic rods to squeeze the conductor in the conveying state through a pressure wheel to keep the conductor taut. This provides a tension for the conductor to maintain a certain tension. However, since the conductor needs to be conveyed and wound for a long time, and changes in the conductor winding diameter will directly affect the conductor tension, the conductor tension needs to be frequently adjusted. This frequent adjustment method will cause fatigue damage to the structure providing the extrusion force, and it will be impossible to provide a stable extrusion force for the conductor for a long time. Therefore, its control effect is poor, and it is necessary to develop a good control device to replace the existing device. Summary of the invention

[0004] In view of the above technical problems, the present invention provides a copper alloy wire tension control device and method, the specific technical solution adopted is:

[0005] According to a first aspect of the present invention, there is provided a copper alloy wire tension control device, comprising a support platform, and further comprising:

[0006] A pushing unit is used to generate a constant downward pulling force. The pushing unit includes a friction plate, a moving seat and an adsorption structure. The friction plate is fixed on the machine platform. The moving seat is frictionally and slidably mounted on the friction plate. The adsorption structure is used to adjust the friction force between the friction plate and the moving seat to change the comprehensive force of the friction plate when it is affected by gravity.

[0007] A plurality of conveying wheels are used to convey the wires. The conveying wheel in the middle is arranged on the moving seat, and the remaining conveying wheels are divided into two groups and arranged on both sides of the middle conveying wheel, and both groups are installed on the machine platform;

[0008] The controller is installed on the machine platform and is used to control the adsorption structure.

[0009] In some embodiments of the present invention, the number of the plurality of conveying wheels is at least three, and they are distributed in an inverted triangle shape.

[0010] In some embodiments of the present invention, the adsorption structure includes a magnetic plate mounted on a movable seat and an electromagnet disposed inside a friction plate, and two ends of the electromagnet are connected to a power source via two wires.

[0011] In some embodiments of the present invention, a cavity is provided inside the friction plate, the electromagnet slides in the cavity, and the sliding direction of the electromagnet is parallel to the moving direction of the moving seat.

[0012] In some embodiments of the present invention, the material combination of the friction plate and the moving seat is one of a ceramic-to-ceramic combination and a hardened steel-to-polymer composite material combination.

[0013] In some embodiments of the present invention, the pushing unit also includes a guiding structure for guiding the movement of the movable seat, the guiding structure includes two slats, each of which is slidably provided with a movable sleeve, and an insertion rod is provided between the two movable sleeves, and the insertion rod passes through the movable seat and is slidably connected to each other.

[0014] In some embodiments of the present invention, the conveying wheel comprises a supporting shaft and two wheel discs mounted on the supporting shaft, and a plurality of rollers are rotatably arranged on the opposite end surfaces of the two wheel discs;

[0015] The conductor between the middle conveying wheel and its adjacent conveying wheel is vertical.

[0016] In some embodiments of the present invention, the axes of the two wheel discs on the support shaft intersect with each other.

[0017] In some embodiments of the present invention, one wheel disc on the conveying wheel is fixed in position, and a connecting sleeve is provided on the other wheel disc. The connecting sleeve is screwed onto the supporting shaft via a thread, and the connecting sleeve and the supporting shaft are fastened via a top screw, and the thread has a square tooth cross-section.

[0018] According to a second aspect of the present invention, a method for controlling the tension of a copper alloy wire is provided, comprising the following steps:

[0019] The controller controls the adsorption structure to adjust the friction between the friction plate and the moving seat, so that the moving seat is stabilized at the middle position on the friction plate;

[0020] The wire is passed around a number of conveying wheels, and the end of the wire is fixed on a winding roller;

[0021] By controlling the adsorption structure, the friction between the friction plate and the moving seat is gradually reduced, so that the combined force of gravity and friction on the moving seat is gradually increased, and the extrusion force on the wire is gradually increased;

[0022] When the force acting on the wire reaches the specified value, the wire starts to reel in;

[0023] The friction between the friction plate and the movable seat is adjusted through the controller, thereby adjusting the conductor tension, so that the conductor is kept at a fixed tension requirement and the winding work is continued.

[0024] The beneficial effects of the present invention are:

[0025] The present invention uses gravity to provide a constant and stable force source for the wire. Compared with traditional structures such as springs or hydraulic rods, the tension provided by gravity is more stable, avoiding the problem of tension fluctuation caused by frequent adjustments. By adjusting the friction between the friction plate and the moving seat, combined with the effect of gravity on the moving seat, the squeezing force of the moving seat on the wire can be accurately controlled, thereby achieving precise regulation of the wire tension. This adjustment method is flexible and easy to operate, and its structure and operation method are simple, convenient for maintenance and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 is a schematic diagram of the distribution of several conveying wheels in an embodiment of the present invention;

[0029] Figure 3 is a schematic diagram of the combined structure of the pushing unit and the conveying wheel in an embodiment of the present invention;

[0030] Figure 4 is a schematic structural diagram of a pushing unit in an embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of a conveying wheel in an embodiment of the present invention;

[0032] Figure 6 Schematic diagram of the structure of the electromagnet in the embodiment of the present invention.

[0033] Reference numerals:

[0034] 100. Machine;

[0035] 200, pushing unit; 201, friction plate; 202, moving seat; 203, magnetic plate; 204, wire; 205, lath; 206, moving sleeve; 207, plug rod; 208, electromagnet; 209, conductive sheet;

[0036] 300, conveying wheel; 301, supporting shaft; 302, wheel disc; 303, roller; 304, connecting sleeve; 305, top screw; 306, thread;

[0037] 400. Controller. DETAILED DESCRIPTION

[0038] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0039] like Figures 1 to 4 As shown, a copper alloy wire tension control device of the present invention includes a support machine 100, and also includes:

[0040] The pushing unit 200 is used to generate a constant downward pulling force. The pushing unit 200 includes a friction plate 201, a moving seat 202 and an adsorption structure. The friction plate 201 is fixed on the machine platform 100, and the moving seat 202 is frictionally and slidably installed on the friction plate 201. The adsorption structure is used to adjust the friction force between the friction plate 201 and the moving seat 202 to change the comprehensive force of the friction plate 201 when it is affected by gravity.

[0041] A plurality of conveying wheels 300 are used to convey the wires. The conveying wheel 300 in the middle is disposed on the moving seat 202, and the remaining conveying wheels 300 are divided into two groups and disposed on both sides of the middle conveying wheel 300, and both groups are mounted on the machine 100;

[0042] The controller 400 is installed on the machine platform 100 and is used to control the adsorption structure.

[0043] The present invention provides at least three conveying wheels 300, which are distributed in an inverted triangle. The middle conveying wheel 300 is located below the remaining conveying wheels 300, and the wire bypasses the conveying wheel 300 for transmission. In this way, the movement of the middle conveying wheel 300 can be used to squeeze the wire in the vertical direction, thereby adjusting the tension of the wire. Since the present case mainly uses gravity to provide a stable and controllable force on the middle conveying wheel 300, the middle conveying wheel 300 only needs to move in the vertical direction. Of course, in some other embodiments, the direction of the force can also be changed by using a lever structure, a transmission structure, etc. to change the direction of the force of the middle conveying wheel 300 on the wire, and on this basis, the wire conveying direction can be changed, such as horizontal conveying, vertical conveying or inclined conveying, which are all within the protection scope of the present case.

[0044] When in use, the wire is conveyed around several conveying wheels 300. Due to the gravity and the friction of the friction plate 201 on the movable seat 202, the movable seat 202 itself has a downward stabilizing force, which is transmitted to the intermediate conveying wheel 300, thereby providing an extrusion force for the wire. Since the extrusion force is generated by gravity, it is more stable. When it is necessary to adjust the tension of the wire, the controller 400 controls the friction between the friction plate 201 and the movable seat 202 by controlling the adsorption structure, so as to adjust the downward force of the movable seat 202 itself.

[0045] The present invention uses gravity to provide a constant and stable force source for the wire. Compared with traditional structures such as springs or hydraulic rods, the tension provided by gravity is more stable, avoiding the problem of tension fluctuations caused by frequent adjustments. By adjusting the friction between the friction plate 201 and the movable seat 202, combined with the effect of gravity on the movable seat 202, the squeezing force of the movable seat 202 on the wire can be accurately controlled, thereby achieving precise control of the wire tension. This adjustment method is flexible and easy to operate, and its structure and operation method are simple, convenient for maintenance and assembly.

[0046] To achieve the effect of adjusting the friction between the friction plate 201 and the moving seat 202, as Figure 4 and Figure 6 As shown, the adsorption structure includes a magnetic plate 203 installed on the moving seat 202 and an electromagnet 208 arranged on the inner side of the friction plate 201. The two ends of the electromagnet 208 are connected to the power supply through two wires 204. The electromagnet 208 provides electromagnetic attraction for the magnetic plate 203. By using the controller 400 to change the current provided by the power supply to the electromagnet 208, the magnetic attraction of the electromagnet 208 to the magnetic plate 203 is changed, thereby adjusting the squeezing force and friction force between the moving seat 202 and the friction plate 201; of course, in some other usage scenarios, the adsorption structure can also be adjusted by hydraulic pressure, mechanical push and other forms to adjust the squeezing force and friction force between the moving seat 202 and the friction plate 201, as long as the technical effect of this case can be achieved;

[0047] The friction plate 201 and the electromagnet 208 therein can be produced by pouring a wrapping material outside the electromagnet 208, or by splicing or other methods, which will not be elaborated here.

[0048] In a conventional electromagnetic structure, the magnitude of the magnetic field generated will vary due to different positions, that is, due to the different magnetic flux density at different positions of the magnetic field, the magnitude of the magnetic field will be different. In this case, when the current of the electromagnet 208 is constant, in order to enable the electromagnet 208 to generate a constant magnetic attraction to the magnetic plate 203 at different positions, the structure of the electromagnet 208 can be specifically set, such as Figure 6 As shown, a cavity is provided inside the friction plate 201, and the electromagnet 208 slides in the cavity, and the sliding direction of the electromagnet 208 is parallel to the moving direction of the moving seat 202; the electromagnet 208 and the magnetic plate 203 attract each other through magnetic force, and when the magnetic plate 203 moves, the electromagnet 208 will move synchronously in the cavity, so the relative position between the electromagnet 208 and the magnetic plate 203 can be regarded as unchanged, so that the magnetic field suction provided by the electromagnet 208 to the magnetic plate 203 will remain unchanged, regardless of the position of the moving seat 202 on the friction plate 201; of course, this structure In the structure, the gravity factor of the electromagnet 208 will also be transmitted to the movable seat 202, and since the gravity is constant, it will not have a significant impact on the adjustment work; since the electromagnet 208 slides in the cavity, in order to achieve the connection between the electromagnet 208 and the two wires 204, two conductive sheets 209 can be set on the front and back sides of the cavity, and the two conductive sheets 209 are connected to the two wires 204. The two conductive sheets 209 are respectively in sliding contact with the spring sheets of the two terminal ends of the electromagnet 208, so that the electromagnet 208 can achieve the power-on effect when it moves.

[0049] The material combination of the friction plate 201 and the movable seat 202 is one of a ceramic-to-ceramic combination and a hardened steel-to-polymer composite material combination, so that a constant friction force can exist between the friction plate 201 and the movable seat 202, and the friction coefficient between the friction plate 201 and the movable seat 202 will not be affected by long-term frequent friction. Of course, in some special cases, a combination of graphite and stainless steel can also be used, or a selective combination, a common combination, and multiple combinations of the above-mentioned combinations can be used simultaneously, as long as the effect of a constant friction coefficient can be achieved.

[0050] like Figure 4As shown, the pushing unit 200 also includes a guiding structure for guiding the movement of the moving seat 202, and the guiding structure includes two slats 205, each of which is slidably provided with a moving sleeve 206, and an insertion rod 207 is provided between the two moving sleeves 206, and the insertion rod 207 passes through the moving seat 202 and is slidably connected to each other. When the moving seat 202 moves along the length direction of the friction plate 201, the moving seat 202 slides on the insertion rod 207 synchronously, and when the suction force between the electromagnet 208 and the magnetic plate 203 changes, the setting of the moving sleeve 206 and the slats 205 allows the moving seat 202 to move a smaller displacement toward the friction plate 201 or away from the friction plate 201, thereby changing the size of the squeezing force between the friction plate 201 and the moving seat 202.

[0051] like Figure 5 As shown, the conveying wheel 300 includes a supporting shaft 301 and two wheels 302 installed on the supporting shaft 301. A plurality of rollers 303 are rotatably arranged on the end faces of the two wheels 302 opposite to each other. The rotation axis of the rollers 303 is perpendicular to the rotation axis of the wheels 302. In this way, the position of the wire in the transmission state can be limited by using the two wheels 302 to prevent the wire from shaking randomly. At the same time, the arrangement of the rollers 303 can reduce the friction between the wire and the wheels 302 during transmission, thereby ensuring the smooth transmission of the wire; the supporting shaft 301 on the middle conveying wheel 300 is arranged on the moving seat 202, and the supporting shafts 301 on the remaining conveying wheels 300 are arranged on the machine 100.

[0052] The conductor between the intermediate conveying wheel 300 and its adjacent conveying wheel 300 is vertical, so when the intermediate conveying wheel 300 moves, the change in the length of the conductor can be quickly and directly calculated based on the position of the intermediate conveying wheel 300. However, if the conductor between the intermediate conveying wheel 300 and its adjacent conveying wheel 300 is inclined, the movement of the position of the intermediate conveying wheel 300 also needs to calculate the change in the length of the conductor using the Pythagorean theorem or other methods, which is more cumbersome.

[0053] like Figure 5 As shown, the axes of the two wheels 302 on the support shaft 301 intersect with each other, that is, the two wheels 302 are relatively inclined, so that when the wire is wound between the two wheels 302 or output from between the two wheels 302, the wire and the roller 303 can be directly separated, and no friction force along the axis direction of the roller 303 is generated between the wire and the roller 303, thereby protecting the wire and avoiding that when the two wheels 302 are parallel to each other, the vertical distance between the two wheels 302 is constant, and if the wire enters between the two wheels 302 and leaves the wheels 302, the wire will be damaged by friction with the roller 303, which is convenient for protecting the wire and improves convenience of use.

[0054] To facilitate the transportation of wires of different diameters, a wheel disc 302 on the transportation wheel 300 is fixed in position, and a connecting sleeve 304 is provided on the other wheel disc 302. The connecting sleeve 304 is screwed on the support shaft 301 through a thread 306, and the connecting sleeve 304 and the support shaft 301 are fastened by a top screw 305, and the tooth profile cross-section of the thread 306 is square; by allowing the distance between the two wheel discs 302 to be adjusted, wires of different diameters can be guided and transported; the position adjustment of the connecting sleeve 304 on the support shaft 301 is achieved by means of the thread 306, which can make the adjustment more accurate and convenient, and the top screw 305 can be used to fasten the connecting sleeve 304 to the support shaft 301; by setting the tooth profile of the thread 306, it is convenient to make the end face of the top screw 305 contact the thread 306 smoothly, avoiding the damage of the thread 306 caused by the extrusion of the top screw 305 when the tooth profile of the thread 306 is conical.

[0055] A method for controlling the tension of a copper alloy wire of the present invention comprises the following steps:

[0056] The controller 400 is used to control the adsorption structure to adjust the friction between the friction plate 201 and the moving seat 202 so that the moving seat 202 is stabilized at the middle position on the friction plate 201;

[0057] The wire is passed around a plurality of conveying wheels 300, and the end of the wire is fixed on a winding roller;

[0058] By controlling the adsorption structure, the friction between the friction plate 201 and the moving seat 202 is gradually reduced, so that the combined force of gravity and friction on the moving seat 202 is gradually increased, and the extrusion force on the wire is gradually increased;

[0059] When the force acting on the wire reaches the specified value, the wire starts to reel in;

[0060] The friction between the friction plate 201 and the movable seat 202 is adjusted by the controller 400, thereby adjusting the conductor tension, so that the conductor is kept at a fixed tension requirement and the winding operation is continued.

[0061] The above are only preferred embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A copper alloy wire tension control device, comprising a support platform, characterized in that: Also includes: A pushing unit is used to generate a constant downward pulling force. The pushing unit includes a friction plate, a moving seat and an adsorption structure. The friction plate is fixed on the machine platform. The moving seat is frictionally and slidably mounted on the friction plate. The adsorption structure is used to adjust the friction force between the friction plate and the moving seat to change the comprehensive force of the friction plate when it is affected by gravity. A plurality of conveying wheels are used to convey the wires. The conveying wheel in the middle is arranged on the moving seat, and the remaining conveying wheels are divided into two groups and arranged on both sides of the middle conveying wheel, and both groups are installed on the machine platform; A controller, mounted on the machine platform, for controlling the adsorption structure; The adsorption structure includes a magnetic plate mounted on a movable seat and an electromagnet arranged inside a friction plate, and two ends of the electromagnet are connected to a power source through two wires; A cavity is provided inside the friction plate, and the electromagnet slides in the cavity, and the sliding direction of the electromagnet is parallel to the moving direction of the moving seat; The electromagnet and the magnetic plate attract each other through magnetic force. When the magnetic plate moves, the electromagnet will move synchronously in the cavity. The pushing unit further comprises a guiding structure for guiding the movement of the moving seat, wherein the guiding structure comprises two slats, each of which is slidably provided with a moving sleeve, and an insertion rod is provided between the two moving sleeves, the insertion rod passes through the moving seat and is slidably connected to each other; The conveying wheel comprises a supporting shaft and two wheel discs mounted on the supporting shaft, and a plurality of rollers are rotatably arranged on the opposite end surfaces of the two wheel discs; The conductor between the middle conveying wheel and its adjacent conveying wheel is vertical.

2. A copper alloy wire tension control device according to claim 1, characterized in that: The number of the plurality of conveying wheels is at least three, and they are distributed in an inverted triangle shape.

3. A copper alloy wire tension control device according to claim 1, characterized in that: The material combination of the friction plate and the moving seat is one of a ceramic-to-ceramic combination and a hardened steel-to-polymer composite material combination.

4. A copper alloy wire tension control device according to claim 1, characterized in that: The axes of the two wheel discs on the supporting shaft intersect with each other.

5. A copper alloy wire tension control device according to claim 4, characterized in that: One wheel disc on the conveying wheel is fixed in position, and a connecting sleeve is arranged on the other wheel disc. The connecting sleeve is screwed on the supporting shaft through a thread, and the connecting sleeve and the supporting shaft are fastened by a top screw. The tooth profile section of the thread is square.

6. A method for controlling the tension of a copper alloy wire, applicable to the device for controlling the tension of a copper alloy wire according to claim 1, characterized in that: The steps include: The controller controls the adsorption structure to adjust the friction between the friction plate and the moving seat, so that the moving seat is stabilized at the middle position on the friction plate; The wire is passed around a number of conveying wheels, and the end of the wire is fixed on a winding roller; By controlling the adsorption structure, the friction between the friction plate and the moving seat is gradually reduced, so that the combined force of gravity and friction on the moving seat is gradually increased, and the extrusion force on the wire is gradually increased; When the force acting on the wire reaches the specified value, the wire starts to reel in; The friction between the friction plate and the movable seat is adjusted through the controller, thereby adjusting the conductor tension, so that the conductor is kept at a fixed tension requirement and the winding work is continued.

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