Wire break detection device in copper wire production process

Abstract

The present invention belongs to the technical field of warning or safety devices for transporting and carrying filamentary materials, and relates to a wire break detection device in the copper wire production process, including a first sensor assembly arranged between an upstream device and a downstream device. The first sensor assembly includes a rotating wheel group, a test gear and a magnetoelectric sensor unit. The rotating wheel group includes a wheel one and a wheel two, and wheel grooves are formed on the sides of the two wheels. The axis lines of the two wheels are in the vertical direction and the openings of the wheel grooves on the two wheels are opposite. The moving copper wire can pass through the channel surrounded by the wheel grooves of the wheel one and the wheel grooves of the wheel two, and the outer peripheral surface can contact the wall surfaces of the two wheel grooves, so that the copper wire can at least rotate with the wheel one. The test gear is arranged coaxially with the wheel and can rotate synchronously with the wheel one. The magnetoelectric sensor unit is fixed on a frame and the detection end of its magnetoelectric sensor is facing the test gear. The present invention can detect wire breakage in the copper wire production process, which helps to achieve the purpose of effectively simulating the broken end being drawn into nearby equipment.

Description

Technical Field

[0001] The present invention relates to a warning or safety device for releasing, conveying or carrying filamentary materials, such as an automatic fault detector and other related technical fields, and in particular to a wire break detection device in a copper wire production process. Background Art

[0002] After a number of drawing and reducing processes, a copper rod with a larger diameter is formed into a copper wire product with a smaller diameter. Due to factors such as the uniformity of the copper rod material used in the production of copper wire and the vibration of the drawing equipment, the copper wire on the production line may break during the production process of the copper wire. If the copper wire is not stopped in time after breaking, it will be drawn away by the process equipment on the upstream or downstream side of the broken end, which may cause the copper wire to break and entangle, and easily cause the copper wire production equipment to get stuck, aggravate wear, and even cause electrical equipment to burn out, etc., which not only affects production efficiency, but also may cause safety accidents.

[0003] At present, in the copper wire / copper wire production process, many devices are not equipped with automatic detection devices for possible wire breakage problems. They mainly rely on manual fixed-point inspections or installation of cameras at several key locations for monitoring. Once the copper wire breakage problem occurs, all or part of the related processes of the production line cannot be stopped in time, and it is impossible to prevent or avoid the broken wire from being drawn into nearby equipment. It can only reduce the severity of the broken wire being drawn into nearby equipment to a certain extent. Summary of the invention

[0004] The present invention provides a wire breakage detection device in a copper wire production process, which can detect wire breakage problems occurring in the copper wire production process, and can be used to control the equipment upstream and / or downstream of the wire breakage position to stop running in time, thereby helping to effectively prevent and inhibit broken wires from being drawn into nearby equipment.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a wire break detection device in the copper wire production process includes a first sensor assembly arranged between an upstream device and a downstream device. The first sensor assembly includes a rotating wheel group, a test gear and a magnetoelectric sensor unit.

[0006] The wheel assembly includes wheel 1 and wheel 2, and wheel grooves are formed on the side of wheel 1 and the side of wheel 2. The extension direction of the axis of wheel 1 and the extension direction of the axis of wheel 2 are both along the vertical direction, and the wheel grooves on the two wheels are opposite.

[0007] The copper wire moving from the upstream device to the downstream device can pass through the channel surrounded by the wheel groove of wheel one and the wheel groove of wheel two, and the outer peripheral surface of the copper wire can contact the wall surfaces of the two wheel grooves, so that the moving movement of the copper wire can at least cause wheel one to rotate.

[0008] The radial depth of the wheel groove on wheel one and the radial depth of the wheel groove on wheel two are both less than 1 / 2 of the outer diameter of the copper wire, and the axial width of the wheel groove is not less than the outer diameter of the copper wire. The actual design of the wheel groove structure and dimensional parameters on wheel one and wheel groove structure and dimensional parameters on wheel two is to achieve the movement between the upstream and downstream equipment with the copper wire, and at least drive the wheel one to rotate. The test gear is coaxially arranged with the wheel and can rotate synchronously with the wheel one.

[0009] The magnetoelectric sensing unit is fixed on the frame, so that the detection end of the magnetoelectric sensor in the magnetoelectric sensing unit faces the test gear and a gap is formed between the detection end of the magnetoelectric sensor and the test gear.

[0010] By monitoring the rotation speed of the test gear with the help of a magnetoelectric sensor, it is possible to determine whether the copper wire is broken. Because, during normal production, when the copper wire moves from the upstream device to the downstream device, it will be stretched by two forces in opposite directions but along the axial direction of the copper wire, so that the copper wire remains in a straight state and moves from the upstream side to the downstream side at a certain speed. As the copper wire moves between the upstream and downstream, the wheel 1 can be driven to rotate at a certain rotation speed. When the copper wire is broken at a certain position between the upstream and downstream devices, the forces on both sides of the copper wire will change suddenly, which will cause a sudden change in the moving speed of the copper wire, and finally cause a sudden change in the rotation speed of the wheel 1, causing a sudden change in the sensing signal of the magnetoelectric sensor.

[0011] Optionally, the magnetoelectric sensor unit further includes a slide and a base. The magnetoelectric sensor is fixed on the slide, the base is fixedly connected to the frame, and the slide and the base are matched by a linear track structure, so that the slide can reciprocate along a straight line relative to the base, and the distance between the detection end of the magnetoelectric sensor and the test gear can be adjusted.

[0012] Optionally, an elastic strip or an elastic layer is fixedly embedded on at least the inner bottom surface of the wheel groove of wheel one to increase the friction between the contact surface of wheel one and the copper wire, thereby improving the transmission effect between the copper wire and wheel one when the copper wire moves.

[0013] Optionally, at least one pair of supporting parts is further included. The multiple supporting parts are arranged on the upstream and downstream sides of the rotating wheel group in the first sensor assembly. The supporting part includes a support fixed on the frame and at least one pair of supporting wheels pivotally matched on the support.

[0014] An annular groove is formed on the side of the supporting wheel, and the grooves on the multiple supporting wheels distributed on the upstream and downstream sides of the runner group are relatively distributed on a straight line. The outer peripheral surface of a section of the copper wire body extending from the channel surrounded by the first wheel and the second wheel to the upstream side and the downstream side can be tangentially contacted with the top surface of the groove on each supporting wheel at the same time, so that the copper wire can extend and move between the upstream and downstream devices on the plane.

[0015] Optionally, the magnetoelectric sensor is connected to a processor and the processor can analyze and process the sensor signal fed back by the magnetoelectric sensor. The processor is connected to the control circuit of the upstream device and / or the control circuit of the downstream device. When the speed of the test gear suddenly changes, the processor can analyze and process the sensor signal fed back at that time, and send a shutdown instruction to the upstream device and / or the downstream device, so that the control circuit of the upstream device and / or the downstream device is activated to control the upstream device and / or the downstream device to shut down.

[0016] Optionally, at least one second sensor assembly and a locking portion corresponding to the second sensor assembly are further included. The second sensor assembly is arranged at a downstream side position close to the upstream device and / or at an upstream side position close to the downstream device.

[0017] The second sensing assembly includes a supporting portion, a roller, and a plurality of force sensing units.

[0018] The supporting part comprises a pair of ring groups including a cover ring and a mounting ring, and the two ring groups are arranged opposite to each other.

[0019] The two ends of the roller shaft of the roller wheel are matched with the two ring groups, so that the two ends of the roller shaft extend into the inner cavity of the corresponding ring group. A wheel groove is formed on the outer circumference of the roller wheel, and the copper wire passes through the upper part of the wheel groove, so that the outer circumference of the copper wire is tangentially in contact with the bottom surface of the wheel groove.

[0020] The force sensing unit includes a slider, a force sensor body fixed on the slider, a transmission rod connected to the slider, and a roller pivotally arranged at one end of the transmission rod. The transmission rod of the force sensor body can match the other end of the transmission rod. After the force of the roller is transmitted to the other end of the roller through the transmission rod, it can act on the transmission rod to make the force sensor body send out a pressure signal.

[0021] The assembly ring is fixed on the frame and a ring-shaped convex rail is formed on one end surface of the assembly ring. A groove track that can match the convex rail is formed on the slider, so that the force sensing unit can move around the circumference relative to the assembly. After the cover ring is fixed on the assembly ring, the force sensing unit can be fixed relative to the assembly ring.

[0022] The transmission rod and the roller extend into the inner cavity of the assembly ring, so that the cylindrical surfaces of the multiple rollers surround the outer circumference of the roller shaft and the outer circumference of the roller is in tangential contact with the outer circumference of the roller shaft to support the two ends of the roller shaft.

[0023] The locking part comprises a pressing block and a transmission unit, wherein the pressing block is relatively arranged above the roller. After the copper wire passes through the top surface of the roller, a vertical distance is relatively formed between the lower end of the pressing block and the copper wire surface exposed outside the roller.

[0024] The force sensor body is connected to the controller, and the transmission unit is connected to the controller. The controller can analyze and process the pressure signal fed back from the force sensor body and issue instructions to control the action of the transmission unit.

[0025] After the controller processes and analyzes each pressure signal, if it is determined that the pressure signal fed back by one or more force sensor bodies in the force sensing unit has a sudden change, an action instruction is issued to control the transmission unit to drive the pressure block to move downward, so that the lower end of the pressure block can press the copper wire on the roller, thereby achieving the braking purpose of suppressing or preventing the relative movement of the copper wire relative to the roller.

[0026] The height of the roller needs to be equal to that of the wheel assembly so that the copper wire can pass through the wheel assembly and the roller in the horizontal plane or in the horizontal plane. When the supporting part is set, the top surface of the wheel groove on the roller is basically flush with the top surface of the wheel groove of the supporting wheel, so that the two are basically in the same horizontal plane or in the horizontal plane.

[0027] The supporting position of the roller on the roller shaft is adjusted by adjusting the specific positions of the multiple force sensing units arranged on the same assembly ring. Finally, the roller shaft or the roller wheel is kept in a stable horizontal state by adjusting the supporting state of each roller on the two assembly rings on both ends of the roller shaft.

[0028] Optionally, the transmission rod portion includes a connecting block, an adjusting block, a connecting rod and a spring.

[0029] One end of the connecting block is connected to the outer shell of the force sensor body through a threaded structure, and the other end is connected to one end of the adjusting block through a threaded structure.

[0030] The connecting rod comprises connecting rod one and connecting rod two, the roller is matched and arranged on the U-shaped part formed at one end of connecting rod one, the other end of connecting rod one is connected with one end of connecting rod two through a threaded structure, and the other end of connecting rod two is formed with a radial flange.

[0031] The axial hole of the connecting block and the axial hole of the adjusting block can be connected to form an axial through hole for the connecting rod to pass through.

[0032] The spring is sleeved on the part of the connecting rod 1 exposed outside the adjusting block, and the two ends of the spring are respectively in contact with the end surface of the adjusting block and the bottom surface of the U-shaped part on the connecting rod 1.

[0033] The radial flange on the second connecting rod extends into the countersunk hole formed at the end of the shaft hole of the connecting block, and the end face of the radial flange faces the end of the transmission rod. After the radial flange at the second end of the connecting rod matches the countersunk hole at the end of the shaft hole on the connecting block, the connecting rod can be prevented from escaping from the axial through hole formed by connecting the shaft hole of the connecting block and the shaft hole of the adjusting block.

[0034] The length of the threaded connection between the adjusting block and the connecting block can be screwed to adjust the initial supporting force of the spring and adjust the axial length of the connecting block and the adjusting block connected as a whole.

[0035] By screwing the connection length between the connection block and the outer shell of the force sensor body, the relative position between the end faces of the radial flanges at the two ends of the connecting rod and the end of the transmission rod can be adjusted.

[0036] The axial length of the connecting rod can be adjusted by screwing the matching length of the thread structure of the connecting rod one and the connecting rod two.

[0037] When the force on the roller shaft changes significantly, it can be transmitted to the connecting rod through the roller, causing the connecting rod to move axially relative to the connecting block and the adjusting block, causing the pressure of the radial flanges at both ends of the connecting rod acting on the transmission rod to change significantly.

[0038] Optionally, multiple arc-shaped grooves are formed on the ring body of the mounting ring and the ring body of the cover ring, and the multiple arc-shaped grooves are alternately distributed around the circumferential direction. After the cover ring and the mounting ring are buckled, the bolt rod end of the bolt passes through the groove on the cover ring and the groove on the mounting ring and is connected with a nut, so that the cover ring and the mounting ring can be connected as a whole, and a fixed connection relationship is established between the cover ring and the mounting ring.

[0039] Optionally, an arc-shaped elastic plate is fixedly provided at the lower part of the pressing block. The lower end surface of the elastic plate is an outwardly protruding arc surface, and the upper end surface is an inwardly concave arc surface. A gap is formed between the upper end surface of the elastic plate and the lower end surface of the pressing block. When the elastic plate moves downward with the pressing block, the lower end surface of the elastic plate can contact the copper wire and the top of the wheel groove of the roller and can be elastically deformed to press the copper wire onto the bottom surface of the wheel groove of the roller.

[0040] The beneficial effects of the present invention are as follows: the wire break detection device in the copper wire production process provided by the present invention can detect the wire break problem occurring in the copper wire production process, and can be used to control the equipment upstream and / or downstream relatively located at the wire break position to stop running in time, which helps to achieve the purpose of effectively preventing the broken wire from being drawn into nearby equipment.

[0041] By providing a locking portion, the broken head can be pressed down in time to slow down the speed at which the broken head continues to move, which helps to increase the probability of suppressing the broken head from being drawn into nearby equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a schematic diagram of the overall top view of the structure of an implementation scheme of the present invention.

[0043] Figure 2 It is a schematic diagram of the structure of the matching of the copper wire and the wheel in the rotating wheel assembly.

[0044] Figure 3 It is a schematic diagram of the main structure of the wheel in the rotating wheel assembly.

[0045] Figure 4 It is a schematic diagram of the matching status among the second sensor assembly, the copper wire and the locking part.

[0046] Figure 5 It is a schematic diagram of the matching state between the assembly ring in the support part and the force sensing unit.

[0047] Figure 6 A schematic diagram of the partial cross-sectional structure of the force sensing unit.

[0048] In the figure: 100 copper wire; 200 upstream equipment; 300 first sensor assembly; 10 rotating wheel group, 11 wheel one, 12 wheel two, 13 wheel groove one, 131 elastic strip; 20 test gear; 30 magnetoelectric sensor unit, 31 slide, 32 base; 400 supporting part, 40 support; 50 supporting wheel group, 51 supporting wheel one, 52 supporting wheel two; 500 second sensor assembly, 60 supporting part, 61 cover ring, 62 assembly Ring, 621 groove, 63 base, 64 convex rail; 70 roller, 71 roller shaft, 711 middle section, 72 wheel groove two; 80 force sensing unit, 81 slider, 811 groove rail, 82 force sensor body, 821 transmission rod, 83 connecting block, 84 adjusting block, 85 connecting rod, 851 connecting rod one, 852 connecting rod two, 86 roller column, 87 spring; 600 locking part; 90 pressure block, 91 elastic plate, 911 arc surface. DETAILED DESCRIPTION

[0049] The structures, proportions, sizes, etc. illustrated in the drawings of the specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention. At the same time, the terms such as "upper", "lower", "front", "back", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of the present invention without substantially changing the technical contents.

[0050] like Figures 1 to 3 The wire breakage detection device in the copper wire production process shown in the figure includes a first sensor assembly 300 and a pair of supporting parts 400 arranged between an upstream device 200 and a downstream device (not shown in the figure). The detailed structural features of the upstream device 200 and the downstream device belong to the scope of the prior art and are not the innovation of the present invention, so they are not described here.

[0051] The first sensor assembly 300 includes a rotating wheel group 10, a test gear 20 (or a signal wheel) and a magnetoelectric sensor unit 30. Two supporting parts 400 are symmetrically distributed on the upstream and downstream sides of the rotating wheel group 10. The supporting part 400 includes a support 40 fixed on the frame and a pair of supporting wheels pivotally matched on the support 40, that is, the supporting wheel group 50 shown in the figure. The supporting wheel group 50 includes a supporting wheel 1 51 and a supporting wheel 2 52.

[0052] The wheel assembly 10 includes a wheel 11 and a wheel 2 12, and a wheel groove, i.e., a wheel groove 13 shown in the figure, is formed on the side surface (or outer circumference) of the wheel 11 and the side surface (or outer circumference) of the wheel 2 12. The axis line of the wheel 11 and the axis line of the wheel 2 12 are both extended in the vertical direction, and the notches of the wheel groove 13 on the two wheels are opposite to each other, so that a channel structure can be formed between the opposite surfaces of the wheel groove 13 of the two wheels, as shown in FIG. Figure 1 shown.

[0053] The copper wire 100 moving from the upstream device 200 to the downstream device can pass through the channel structure surrounded by the wheel groove 13 of the wheel 11 and the wheel groove 13 of the wheel 2 12, and the outer peripheral surface of the copper wire 100 can contact the wall surfaces of the two wheel grooves 13, so that the copper wire 100 can carry / drive the wheel 1 11 and the wheel 2 12 to rotate at the same time.

[0054] To this end, the radial depth of the wheel groove 13 on the wheel 11 and the radial depth of the wheel groove 13 on the wheel 2 12 can be made less than 1 / 2 of the outer diameter of the copper wire 100, and the axial width of the wheel groove 13 is not less than the outer diameter of the copper wire 100. Regardless of the specific size and structure of the wheel groove 13, the ultimate goal is to achieve the actual design of the structure and size parameters of the wheel groove 13 on the wheel 11 and the wheel groove 13 on the wheel 2 12, so as to achieve the movement between the upstream and downstream equipment with the copper wire 100, and to drive the wheel 11 and the wheel 2 12 to rotate at an angular velocity ω, and the rotation directions of the two wheels are opposite. The test gear 20 is coaxially arranged with the wheel 11 and the test gear 20 can rotate synchronously with the wheel 11 around the same axis OO.

[0055] The magnetoelectric sensing unit 30 is fixed on the frame so that the detection end of the magnetoelectric sensor in the magnetoelectric sensing unit 30 faces the test gear 20 and a radial spacing is formed between the detection end of the magnetoelectric sensor and the test gear 20, namely, △1 shown in the figure.

[0056] By monitoring the rotation speed of the test gear 20 with the help of a magnetoelectric sensor, it is determined whether the copper wire 100 is broken. Because, during normal production, when the copper wire 100 moves from the upstream device 200 to the downstream device, it will be stretched by the force F1 and the force F2 in opposite directions but along the axial direction of the copper wire 100, so that the copper wire 100 is kept in a straight state and moves from the upstream side to the downstream side at a certain speed V. As the copper wire 100 moves to the left at a speed V between the upstream and downstream, the wheel 1 11 and the wheel 2 12 can be driven to rotate at a certain rotation speed and be in a basically uniform rotation state. When the copper wire 100 breaks at a certain position between the upstream and downstream devices, the force on the copper wire 100 on both sides of the rotating wheel group 10 will change suddenly, which will cause the moving speed V of the copper wire 100 to change suddenly, and finally cause the rotation speed of the wheel 11 to change suddenly, causing the rotation speed of the test gear 20 to change suddenly, causing the sensor signal of the magnetoelectric sensor to change suddenly, and feeding back a fault signal to the outside.

[0057] The magnetoelectric sensor unit 30 is fixed on the frame through the slide 31 and the base 32, and is arranged at a position opposite to the test gear 20. Specifically, the magnetoelectric sensor is fixed on the slide 31, and the base 32 is fixedly connected to the frame. The slide 31 and the base 32 are matched by a linear track structure, so that the slide 31 can reciprocate along a straight line relative to the base 32, and the radial spacing between the detection end of the magnetoelectric sensor and the test gear 20 can be adjusted, that is, the size of △1 can be adjusted to adjust the clarity of the sensing signal. The magnetoelectric sensor is a passive sensor, that is, it can operate without being connected to a power source, and has the advantages of high detection accuracy, durability, and energy saving.

[0058] Elastic strips 131 can be fixedly embedded on the inner bottom surface of the wheel groove 13 of the wheel 11 and the inner bottom surface of the wheel groove 13 of the wheel 2 12, respectively, so that the elastic strips 131 are alternately distributed in a circle around the circumferential direction to increase the friction between the contact surface of the wheel 11 and the copper wire 100, and increase the friction between the contact surface of the wheel 2 12 and the copper wire 100, so as to improve the transmission capacity between the copper wire 100 and the wheel 11 and the wheel 2 12 when the copper wire 100 moves. The elastic strips 131 can be replaced by covering the wheel groove 13 with an elastic layer. The elastic strips 131 or the elastic layer can be made of materials such as rubber with a large friction coefficient and a certain elasticity. The elastic deformation degree of the elastic strips 131 or the elastic layer does not need to be too large, and generally a slight elastic deformation can occur.

[0059] Annular grooves are formed on the side surfaces of the supporting wheel 1 51 and the supporting wheel 2 52 respectively, and the grooves on the four supporting wheels distributed on the upstream and downstream sides of the rotating wheel group 10 are relatively distributed in a straight line, and it is best if the axial midpoints of the four supporting wheels are in the same vertical plane.

[0060] The outer circumference of a section of the copper wire 100 extending from the channel structure formed by the wheel 11 and the wheel 2 12 to the upstream side and the downstream side can simultaneously contact the top surface of the groove on each supporting wheel, so that the copper wire 100 can extend and move between the upstream and downstream devices on the horizontal plane, as shown in FIG. Figure 1 .

[0061] After a supporting part 400 is respectively arranged on the upstream side and the downstream side of the rotating wheel group 10, the copper wire 100 is supported and maintained in a plane (i.e., the XY plane shown in the figure) by means of the two supporting points of the supporting wheel 1 51 and the supporting wheel 2 52 arranged on the support 40 of the supporting part 400, and can be extended and distributed along the straight line of the X direction relative to the rotating wheel group 10. While playing a supporting role, it will not cause excessive contact friction, which will significantly affect the movement and transmission of the copper wire 100 between the upstream and downstream.

[0062] The supporting wheel 1 51, the supporting wheel 2 52 and the support 40 are matched through a pivot, including an implementation situation where the supporting wheel 1 51 and / or the supporting wheel 2 52 can rotate around the pivot relative to the support 40; at the same time, it also includes an implementation situation where the supporting wheel 1 51 and / or the supporting wheel 2 52 cannot rotate around the pivot relative to the support 40.

[0063] By connecting the magnetoelectric sensor in the above scheme to a processor (not shown in the figure), and connecting the processor to the control circuit of the upstream device 200 and / or the control circuit of the downstream device at the same time, it is possible to change the sensor signal of the first sensor assembly 300. When the copper wire 100 breaks, the upstream device 200 and / or the downstream device can be switched to a shutdown state immediately, which can effectively prevent the broken wire from being drawn into the upstream device 200 or the downstream device.

[0064] The processor can analyze and process the sensor signal fed back by the magnetoelectric sensor. When the rotation speed of the test gear 20 changes suddenly, the processor can analyze and process the sensor signal fed back at that time, and send a shutdown command to the upstream device 200 and / or the downstream device, so that the control circuit of the upstream device 200 and / or the control circuit of the downstream device can be activated to switch the upstream device 200 and / or the downstream device to the shutdown state, which helps to effectively suppress / prevent the broken end from being drawn into the upstream and downstream devices near the broken wire position.

[0065] like Figure 1 , Figures 4 to 6 As shown, it also includes at least one second sensor assembly 500 and a locking portion 600 that matches the second sensor assembly 500 in a one-to-one correspondence.

[0066] The second sensor assembly 500 is disposed at a downstream position close to the upstream device 200 and / or at an upstream position close to the downstream device. The figure only shows the second sensor assembly 500 disposed at the downstream position of the upstream device 200.

[0067] The second sensor assembly 500 includes a support portion 60, a roller 70 and ten force sensing units 80, that is, five force sensing units 80 are respectively arranged at both ends of the roller shaft 71 of the roller 70. Figure 4 Only five force sensing units 80 arranged at one end of the roller shaft 71 are shown.

[0068] The support portion 60 includes a pair of ring groups including a cover ring 61 and a mounting ring 62 , and the two ring groups are disposed opposite to each other.

[0069] The two ends of the roller shaft 71 of the roller wheel 70 are matched with two ring groups respectively, so that the two ends of the roller shaft 71 extend into the inner cavity of the corresponding ring group. A second wheel groove 72 is formed on the outer circumference of the roller wheel 70, and the copper wire 100 passes through the upper part of the second wheel groove 72, so that the top of the outer circumference of the copper wire 100 is tangentially in contact with the bottom of the second wheel groove 72.

[0070] The force sensing unit 80 includes a slider 81, a force sensor body 82 fixed on the slider 81, a transmission rod connected to the slider 81, and a roller 86 pivotally arranged at one end of the transmission rod. The transmission rod 821 of the force sensor body 82 can match the other end of the transmission rod. After the force of the roller 86 is transmitted to the other end via the transmission rod, it can act on the transmission rod 821 to make the force sensor body 82 send a pressure (sensing) signal.

[0071] The assembly ring 62 is fixed to the frame through the base frame 63, and a ring-shaped convex rail 64 is formed on one end surface of the assembly ring 62. The slider 81 is formed with a groove rail 811 that can match the convex rail 64, so that the force sensing unit 80 can move around the circumference relative to the assembly ring 62, and the position of each force sensing unit 80 relative to the assembly ring 62 can be adjusted. After the cover ring 61 is fixed to the assembly ring 62, the force sensing unit 80 can be fixed relative to the assembly ring 62.

[0072] The transmission rod and the roller 86 extend into the inner cavity of the assembly ring 62, so that the cylindrical surfaces of multiple rollers 86 surround the outer circumference of the roller shaft 71 and the outer circumference of the roller 86 can be tangentially contacted with the outer circumference of the roller shaft 71 to support the two ends of the roller shaft 71. Figure 4 , Figure 5 In the illustrated embodiment, the outer circumference of the roller 86 matches with the middle section 711 on the roller shaft 71, and the outer circumference of the roller 86 is in tangential contact with the outer rear surface of the middle section 711. The rollers 86 in the five force sensing units 80 distributed at both ends of the roller shaft 71 respectively match with the middle sections 711 on both sides to support the roller shaft 71 so that it remains in a horizontal position.

[0073] Under normal operation, the copper wire 100 moves from the upstream device 200 to the downstream device, during which the copper wire 100 is in tangential contact with the inner bottom surface of the wheel groove 2 72 of the roller 71. At this time, the pressure (force in the radial direction of the roller 71) exerted by the copper wire 100 on the rotating roller 71 is very small and can be ignored, so it has no effect on the multiple force sensing units 80 supporting the roller 71 to maintain a balanced state. However, when the copper wire 100 is broken, because the broken position will sag downward due to gravity, the falling force on the side of the broken position close to the roller 70 will change, which will cause one or more sensor signals in the force sensing unit 80 to fluctuate greatly. After receiving the greatly fluctuating pressure signal, the controller (mentioned below) can determine that the wire is broken and quickly instruct the locking unit 600 to take corresponding actions.

[0074] The locking portion 600 includes a pressing block 90 and a transmission unit (not shown in the figure), wherein the pressing block 90 is relatively arranged above the roller 70. The transmission unit can drive the pressing block 90 to reciprocate in the vertical direction.

[0075] After the copper wire 100 passes through the top surface of the roller 70, a vertical distance is formed between the lower end of the pressing block 90 (i.e., the lowermost end of the arc surface 911) and the surface of the copper wire 100 exposed outside the roller 70, i.e. Figure 4 △2 shown in .

[0076] The force sensor body 82 is connected to the controller, and the transmission unit is connected to the controller.

[0077] The controller can analyze and process the pressure signal fed back by the force sensor body 82, and issue an instruction to control the action of the transmission unit. After the controller processes and analyzes each pressure signal, if it is determined that the pressure signal fed back by one or more force sensor bodies 82 in the force sensing unit 80 has a sudden change (i.e., a significant change), an action instruction to control the transmission unit to drive the pressing block 90 to move downward is issued, so that the lower end of the pressing block 90 can press the copper wire 100 on the roller 70, thereby achieving the braking purpose of inhibiting / preventing the copper wire 100 from moving relative to the roller 70.

[0078] The height of the roller 70 needs to be equal to the height of the rotating wheel assembly 10, so that the copper wire 100 can maintain balance in the transverse plane or the horizontal plane and pass through the rotating wheel assembly 10 and the roller 70. When the supporting portion 400 is provided, the top surface of the second wheel groove 72 on the roller 70 is substantially flush with the top surface of the wheel groove of the supporting wheel (i.e., the first supporting wheel 51 and the second supporting wheel 52 shown in the figure), so that the two are substantially in the same transverse plane or the horizontal plane.

[0079] The specific positions of the multiple force sensing units 80 provided on the same assembly ring 62 are adjusted to adjust the supporting position of the roller 86 on the roller shaft 71. Finally, by adjusting the supporting position of each roller 86 on the two assembly rings 62 on both ends of the roller shaft 71, the roller shaft 71 or the roller wheel 70 can be kept in a stable balanced state.

[0080] By providing the second sensor assembly 500 and the locking portion 600, the broken end of the copper wire 100 can be pressed in time to slow down or even prevent the broken end from continuing to move, which helps to increase the probability of successfully preventing the broken end from being drawn into nearby equipment.

[0081] like Figures 4 to 6 As shown, the transmission rod portion includes a connecting block 83 , an adjusting block 84 , a connecting rod 85 and a spring 87 .

[0082] One end of the connection block 83 is connected to the outer shell of the force sensor body 82 through a threaded structure, and the other end is connected to one end of the adjustment block 84 through a threaded structure. Specifically, an external thread section is formed at the end of the outer shell of the force sensor body 82, and a threaded countersunk hole is formed at one end of the connection block 83 accordingly, so that the external thread section on the outer shell matches the threaded countersunk hole, so that the outer shell of the force sensor body 82 and the connection block 83 are connected as a whole.

[0083] The connecting rod 85 includes a connecting rod 1 851 and a connecting rod 2 852. The roller 86 is matched and arranged on the U-shaped portion formed at one end of the connecting rod 1 851. The other end of the connecting rod 1 851 is connected to one end of the connecting rod 2 852 via a threaded structure, and the other end of the connecting rod 2 852 is formed with a radial flange. Specifically, a threaded countersunk hole is formed at one end of the connecting rod 1 851 facing the connecting rod 2 852, and correspondingly, a section of external thread is formed at one end of the connecting rod 2 852 facing the connecting rod 1 851. By matching the external thread section on the connecting rod 2 852 with the threaded countersunk hole on the connecting rod 1 851, the connecting rod 1 851 and the connecting rod 2 852 can be connected as a whole to form the connecting rod 85.

[0084] The two ends of the roller 86 are respectively pivotally matched with the two arm plates of the U-shaped portion formed at the end of the connecting rod 1 851. Similarly, the roller 86 can be implemented in a situation where it can rotate relative to the U-shaped portion, or it can be implemented in a situation where it cannot rotate relative to the U-shaped portion. The U-shaped portion can be connected to the end of the rod body of the connecting rod 1 851 through a threaded structure, so that the overall axial length of the connecting rod 1 851 can be adjusted.

[0085] The axial hole of the connecting block 83 and the axial hole of the adjusting block 84 can be connected to form an axial through hole for the connecting rod 85 to pass through.

[0086] The spring 87 is mounted on the portion of the connecting rod 851 exposed outside the adjusting block 84. The two ends of the spring 87 are in contact with the end surface of the adjusting block 84 and the bottom surface of the U-shaped portion of the connecting rod 851, respectively. As the connecting rod 85 reciprocates axially relative to the adjusting block 84, the compression state of the spring 87 changes accordingly.

[0087] The radial flange on the second connecting rod 852 extends into the countersunk hole formed at the end of the shaft hole of the connecting block 83, and the end face of the radial flange faces the end of the transmission rod 821. After the radial flange at the end of the second connecting rod 852 matches the countersunk hole at the end of the shaft hole on the connecting block 83, the connecting rod 85 can be prevented from escaping from the axial through hole formed by connecting the shaft hole of the connecting block 83 and the shaft hole of the adjusting block 84.

[0088] The length of the threaded connection between the adjusting block 84 and the connecting block 83 can be screwed to adjust the initial supporting (elastic) force of the spring 87 , and the axial length of the connecting block 83 and the adjusting block 84 connected as a whole can be adjusted.

[0089] By screwing the connection length between the connection block 83 and the housing of the force sensor body 82, the relative position between the end surface of the radial flange at the end of the second connecting rod 852 and the end of the transmission rod 821 can be adjusted. By screwing the (axial) length of the threaded structure of the first connecting rod 851 and the second connecting rod 852, the axial length of the connecting rod 85 can be adjusted.

[0090] When the force on the roller shaft 71 changes significantly, it can be transmitted to the connecting rod 85 through the roller 86, causing the connecting rod 85 to move axially relative to the connecting block 83 and the adjusting block 84, so that the pressure of the radial flange at the end of the connecting rod 852 acting on the transmission rod 821 changes significantly.

[0091] Multiple arc-shaped grooves 621 are formed on the ring body of the assembly ring 62 and the ring body of the cover ring 61, and the multiple grooves 621 are alternately distributed around the circumferential direction. After the cover ring 61 and the assembly ring 62 are buckled together, the bolt rod end of the bolt passes through the groove 621 on the cover ring 61 and the groove 621 on the assembly ring 62 and is connected with a nut, so that the cover ring 61 and the assembly ring 62 can be connected as a whole, and a fixed connection relationship is established between the cover ring 61 and the assembly ring 62, so that the force sensing unit 80 or the slider 81 is fixed at a certain position relative to the assembly ring 62.

[0092] By providing the groove 621 on the cover ring 61 and the assembly ring 62, the distribution position of the bolts can be flexibly arranged according to the relative distribution position of the force sensing unit 80 on the assembly ring 62, which helps to ensure that the cover ring 61 is firmly connected to the assembly ring 62 and that each slider 81 is firmly fixed relative to the assembly ring 62.

[0093] An arc-shaped elastic plate 91 is fixedly provided at the lower part of the pressing block 90, and the lower end surface of the elastic plate 91 is an outwardly protruding arc surface 911, and the upper end surface of the elastic plate 91 is an inwardly concave arc surface, and a gap is formed between the upper end surface of the elastic plate 91 and the lower end surface of the pressing block 90. ​​When the elastic plate 91 moves downward with the pressing block 90, the lower end surface of the elastic plate 91 can contact the copper wire 100 and the top of the second wheel groove 72 of the roller 70 and can be elastically deformed, so that the copper wire 100 can be tightly pressed against the inner bottom surface of the second wheel groove 72 of the roller 70.

[0094] The elastic plate 91 can increase the contact area between the copper wire 100 and the inner bottom surface of the wheel groove 2 72 of the roller 70 by elastic deformation, thereby increasing the difficulty of the copper wire 100 moving relative to the roller 70, slowing down the relative movement speed, and reliably preventing the broken end of the copper wire 100 from being pulled away by the upstream and downstream equipment that has not completely stopped running.

[0095] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. The present invention can be improved in many aspects without violating the overall concept, and those familiar with the technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A wire break detection device in a copper wire production process, characterized in that: It comprises a first sensor assembly (300) arranged between an upstream device (200) and a downstream device; The first sensing assembly (300) comprises a rotating wheel set (10), a testing gear (20) and a magnetoelectric sensing unit (30); The rotating wheel assembly (10) comprises a first wheel (11) and a second wheel (12), and wheel grooves are formed on the side surfaces of the first wheel (11) and the second wheel (12); the extending directions of the axis center lines of the first wheel (11) and the second wheel (12) are both in the vertical direction, and the openings of the wheel grooves on the two wheels are opposite to each other; The copper wire (100) moving from the upstream device (200) to the downstream device can pass through the channel surrounded by the wheel groove of the first wheel (11) and the wheel groove of the second wheel (12), and the outer peripheral surface of the copper wire (100) can contact the wall surfaces of the two wheel grooves, so that the copper wire (100) can at least drive the first wheel (11) to rotate; The test gear (20) is coaxially arranged with the wheel one (11) and can rotate synchronously with the wheel one (11); The magnetoelectric sensing unit (30) is fixed on the frame, so that the detection end of the magnetoelectric sensor in the magnetoelectric sensing unit (30) faces the test gear (20) and a gap is formed between the detection end of the magnetoelectric sensor and the test gear (20); It also includes at least one second sensor assembly (500), and a locking portion (600) corresponding to and matching the second sensor assembly (500); The second sensing assembly (500) is arranged at a downstream side position close to the upstream device (200) and / or at an upstream side position close to the downstream device; the second sensing assembly (500) comprises a support portion (60), a roller (70) and a plurality of force sensing units (80); The force sensing unit (80) comprises a slider (81), a force sensor body (82) fixed on the slider (81), a transmission rod connected to the slider (81), and a roller (86) pivotally arranged at one end of the transmission rod; the transmission rod (821) of the force sensor body (82) can match the other end of the transmission rod, so that the force of the roller (86) is transmitted to the other end of the transmission rod via the transmission rod and then acts on the transmission rod (821), so that the force sensor body (82) sends a pressure signal; The locking portion (600) comprises a pressing block (90) and a transmission unit, wherein the pressing block (90) is relatively arranged above the roller (70); after the copper wire (100) passes through the top of the roller (70), a vertical distance is relatively formed between the lower end of the pressing block (90) and the surface of the copper wire (100) exposed outside the roller (70); the force sensor body (82) and the transmission unit are both connected to the controller; The controller can analyze and process the pressure signal fed back by the force sensor body (82), and issue an instruction to control the action of the transmission unit; when the controller determines that the pressure signal fed back by one or more force sensor bodies (82) in the force sensing unit (80) has a sudden change, it can issue an action instruction to control the transmission unit to drive the pressing block (90) to move downward, so that the lower end of the pressing block (90) presses the copper wire (100) onto the roller (70), thereby preventing the copper wire (100) from moving relative to the roller (70).

2. The wire breakage detection device in the copper wire production process according to claim 1, characterized in that: The magnetoelectric sensing unit (30) further includes a slide (31) and a base (32); The magnetoelectric sensor is fixed on the slide (31), the base (32) is fixedly connected to the frame, and the slide (31) and the base (32) are matched through a linear track structure, so that the slide (31) can move back and forth in a straight line relative to the base (32), and the distance between the detection end of the magnetoelectric sensor and the test gear (20) can be adjusted.

3. The wire breakage detection device in the copper wire production process according to claim 1, characterized in that: An elastic strip (131) or an elastic layer is fixedly embedded on the inner bottom surface of the wheel groove of at least one wheel (11).

4. The wire breakage detection device in the copper wire production process according to claim 1, characterized in that: It also includes at least one pair of supporting parts (400); the plurality of supporting parts (400) are distributed on the upstream and downstream sides of the rotating wheel group (10) in the first sensor assembly (300); The supporting portion (400) comprises a support (40) fixed on the frame and at least one pair of supporting wheels pivotally matched on the support (40); An annular groove is formed on the side surface of the supporting wheel, and the grooves on the plurality of supporting wheels arranged on the upstream and downstream sides of the runner assembly (10) are relatively distributed on a straight line; The outer circumference of a section of the copper wire (100) extending from the channel formed by the first wheel (11) and the second wheel (12) to the upstream side and the downstream side can simultaneously be in tangential contact with the top surface of the groove on each supporting wheel, so that the copper wire (100) can extend and move between the upstream and downstream devices on a plane.

5. The device for detecting broken wires in a copper wire production process according to any one of claims 1 to 4, characterized in that: The magnetoelectric sensor is connected to a processor and the processor can analyze and process the sensing signal fed back by the magnetoelectric sensor; the processor is connected to a control circuit of an upstream device (200) and / or a control circuit of a downstream device; When the rotation speed of the test gear (20) changes suddenly, the processor can analyze and process the sensor signal fed back at that time, and send a shutdown command to the upstream device (200) and / or the downstream device, so that the control circuit of the upstream device (200) and / or the downstream device is activated to shut down the upstream device (200) and / or the downstream device.

6. The device for detecting wire breakage in a copper wire production process according to any one of claims 1 to 4, characterized in that: The support portion (60) comprises a pair of ring groups including a cover ring (61) and an assembly ring (62), and the two ring groups are arranged opposite to each other; The two ends of the roller shaft (71) of the roller wheel (70) are matched with the two ring groups, so that the two ends of the roller shaft (71) extend into the inner cavity of the corresponding ring group respectively; a wheel groove is formed on the outer peripheral surface of the roller wheel (70), and the copper wire (100) passes through the upper part of the wheel groove so that the copper wire (100) is in tangential contact with the bottom surface of the wheel groove; The assembly ring (62) is fixed on the frame and a ring-shaped convex rail (64) is formed on one end surface of the assembly ring (62); a groove rail (811) that can match the convex rail (64) is formed on the slider (81), so that the force sensing unit (80) can move around the circumference relative to the assembly ring (62); after the cover ring (61) is fixed on the assembly ring (62), the force sensing unit (80) can be fixed relative to the assembly ring (62); The transmission rod and the roller (86) extend into the inner cavity of the assembly ring (62), so that the cylindrical surface of each roller (86) surrounds the outer peripheral surface of the roller shaft (71) and the outer peripheral surface of the roller (86) is in tangential contact with the outer peripheral surface of the roller shaft (71), thereby supporting the two ends of the roller shaft (71).

7. The wire breakage detection device in the copper wire production process according to claim 6, characterized in that: The transmission rod portion comprises a connecting block (83), an adjusting block (84), a connecting rod (85) and a spring (87); One end of the connecting block (83) is connected to the outer shell of the force sensor body (82) through a threaded structure, and the other end is connected to one end of the adjusting block (84) through a threaded structure; The connecting rod (85) comprises a connecting rod 1 (851) and a connecting rod 2 (852); the roller (86) is matched and arranged on a U-shaped portion formed at one end of the connecting rod 1 (851); the other end of the connecting rod 1 (851) is connected to one end of the connecting rod 2 (852) via a threaded structure; and the other end of the connecting rod 2 (852) is formed with a radial flange; The axial hole of the connecting block (83) and the axial hole of the adjusting block (84) can be connected to form an axial through hole for the connecting rod (85) to pass through; The spring (87) is sleeved on the portion of the connecting rod (851) exposed outside the adjusting block (84), and the two ends of the spring (87) are respectively in contact with the end surface of the adjusting block (84) and the bottom surface of the U-shaped portion on the connecting rod (851); The radial flange on the second connecting rod (852) extends into a countersunk hole formed at the end of the shaft hole of the connecting block (83), and the end surface of the radial flange is opposite to the end of the transmission rod (821); after the radial flange at the end of the second connecting rod (852) matches the countersunk hole at the end of the shaft hole on the connecting block (83), the connecting rod (85) can be prevented from escaping from the axial through hole formed by connecting the shaft hole of the connecting block (83) and the shaft hole of the adjusting block (84).

8. The device for detecting wire breakage in the copper wire production process according to claim 6, characterized in that: A plurality of arc-shaped grooves (621) are formed on the ring body of the assembly ring (62) and the ring body of the cover ring (61), and the plurality of grooves (621) are alternately distributed around the circumferential direction; after the cover ring (61) and the assembly ring (62) are buckled together, the end of the bolt rod of the bolt passes through the groove (621) on the cover ring (61) and the groove (621) on the assembly ring (62) and is connected with a nut, so that the cover ring (61) and the assembly ring (62) are connected as a whole.

9. The device for detecting wire breakage in the copper wire production process according to claim 6, characterized in that: An arc-shaped elastic plate (91) is fixedly provided at the lower part of the pressing block (90); the lower end surface of the elastic plate (91) is an outwardly protruding arc surface (911), and the upper end surface is an inwardly concave arc surface; A gap is formed between the upper end surface of the elastic plate (91) and the lower end surface of the pressing block (90); When the elastic plate (91) moves downward with the pressing block (90), the lower end surface of the elastic plate (91) can contact the copper wire (100) and the top of the wheel groove of the roller (70) and can be elastically deformed, pressing the copper wire (100) onto the bottom surface of the wheel groove of the roller (70).

10. The device for detecting wire breakage in the copper wire production process according to claim 6, characterized in that: The magnetoelectric sensor is connected to a processor and the processor can analyze and process the sensing signal fed back by the magnetoelectric sensor; the processor is connected to a control circuit of an upstream device (200) and / or a control circuit of a downstream device; When the rotation speed of the test gear (20) changes suddenly, the processor can analyze and process the sensor signal fed back at that time, and send a shutdown command to the upstream device (200) and / or the downstream device, so that the control circuit of the upstream device (200) and / or the downstream device is activated to shut down the upstream device (200) and / or the downstream device.

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