A Cu-Nb composite strip winding device for pulse magnets

Abstract

The present invention discloses a Cu-Nb composite strip winding device for pulse magnets, comprising a control box, a feeding mechanism and a receiving mechanism; the receiving mechanism comprises a guide rail frame, a take-up shaft, and a drive assembly; the drive assembly comprises a take-up motor and an adjustable fixing unit; the adjustable fixing unit comprises a clamp and a three-jaw chuck. The present invention combines the feeding mechanism and the take-up mechanism, has a reasonable structural design, and is easy to operate, and can realize the winding of copper strip and niobium strip. Compared with the traditional process, the process is greatly reduced, the labor cost is reduced, and the speed and tension of the take-up and discharge during the winding process can be adjusted according to the actual working conditions, and the winding quality is guaranteed. Through the cooperation of the clamp and the three-jaw chuck, when the diameter of the take-up shaft is objectively limited and cannot be enlarged, the problem of the continuous increase of the diameter of the material roll during the winding process and the inability of the take-up shaft to load the force due to its small diameter, resulting in the phenomenon of slipping and climbing, is solved, thereby ensuring the winding quality and winding density.

Description

Technical Field

[0001] The invention belongs to the technical field of winding devices, and in particular relates to a Cu-Nb composite strip winding device for pulse magnets. Background Art

[0002] High-strength, high-conductivity copper-based composites are non-ferrous materials that combine excellent physical and mechanical properties. They are widely used in devices such as electrical contactors, lead frames, overhead wires for trams and electric trains, and electric springs. In recent years, copper-based composites that combine high strength and high conductivity have been primarily used in non-destructive pulsed magnetic field applications. Because magnets must operate at high fields exceeding 60 T, the magnet winding material must possess high conductivity to minimize the Joule effect. Furthermore, when pulsed magnets operate at high fields with pulse widths in the 10-100 ms range, the conductor material must possess high strength to withstand the enormous Lorentz forces exerted on the magnet coils. Therefore, the development of high-strength, high-conductivity conductor-wound magnet coils with conductivity greater than 65% IACS, a cross-sectional area greater than 5 mm², and a room-temperature tensile strength greater than 1 GPa has become crucial in the pulsed magnet field. In recent years, several renowned international research institutions have conducted research on copper-based microcomposites for use in pulsed magnet construction. Based on years of practical experience, researchers worldwide generally believe that using Cu-Nb (niobium) and Cu-Ag composites to wind magnet coils has the potential to achieve a pulsed magnetic field of 100 T. While Cu-Ag composites offer a good balance of tensile strength and electrical conductivity, their preparation process is complex and costly. Cu-Nb composites, on the other hand, offer higher strength than Cu-Ag composites. Therefore, researching and developing Cu-Nb composites with superior overall performance is of paramount importance.

[0003] Cu-Nb composites are primarily produced through extensive plastic deformation to create continuous micron- or even nanometer-sized Nb fiber cores, enhancing their performance. Currently, the primary method for preparing Cu-Nb composite wires is the cluster drawing method, which uses a Cu matrix and Nb as reinforcement. Nb rods are sheathed in an oxygen-free Cu sheath. The Nb-core-reinforced Cu-Nb microcomposite wires are then produced through vacuum electron beam welding, hot extrusion, cold assembly drawing, and intermediate heat treatment. This extreme plastic deformation creates hundreds of millions of continuous and parallel Nb nanowires within the multi-scale Cu matrix, achieving fiber reinforcement. However, the conventional assembly technique currently employed involves multiple (3-4) recombination of Cu-Nb core rods followed by manual assembly of the sheath. This method suffers from significant deformation, long processing cycles, multiple steps, and complex processes. Furthermore, due to the low mutual solubility between Cu and Nb, diffusion is difficult, resulting in work hardening caused by SPD, limiting further improvements in the performance of Cu-Nb composite wires. Therefore, in order to improve the above defects, the present invention discloses a Cu-Nb composite strip winding device for pulse magnets. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to address the deficiencies in the above-mentioned prior art and provide a Cu-Nb composite strip winding device for pulse magnets. The device combines a unwinding mechanism and a rewinding mechanism, has a reasonable structural design and is easy to operate, and can realize the winding of copper strip rolls and niobium strip rolls. Compared with traditional processes, the number of working steps is greatly reduced, and the labor cost is reduced. In addition, the speed and tension of the rewinding and unwinding strips during the winding process can be adjusted according to the actual working conditions, and the quality of the winding is guaranteed. Through the cooperation of the clamp and the three-jaw chuck, when the diameter of the rewinding shaft is objectively limited and cannot be enlarged, the problem of the continuous increase in the diameter of the material roll during the winding process and the inability to load the force on the rewinding shaft due to its small diameter, resulting in slipping and climbing, is solved, thereby ensuring the winding quality and density.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a Cu-Nb composite strip winding device for pulse magnets, characterized by comprising a control box, and a material unwinding mechanism and a material receiving mechanism both connected to the control box;

[0006] The unloading mechanism includes an unloading rack, a double unloading assembly arranged on the unloading rack, and an unloading motor arranged on the unloading rack and connected to the double unloading assembly, and a supporting assembly is arranged on the unloading rack;

[0007] The double unwinding assembly includes a first unwinding roller horizontally arranged on the unwinding frame and connected to the unwinding motor, and a second unwinding roller horizontally arranged above the first unwinding roller and connected to the first unwinding roller; the first unwinding roller and the unwinding motor are connected via a coupling; the first unwinding roller and the second unwinding roller are connected via a transmission assembly; a magnetic powder clutch and a first tension sensor are provided on the output shaft of the unwinding motor;

[0008] The material receiving mechanism includes a guide rail frame arranged on one side of the material unwinding frame, a reeling shaft arranged on the guide rail frame, and a driving assembly arranged at the end of the reeling shaft and connected to the guide rail frame; the reeling shaft and the first material unwinding roller are arranged in the same horizontal plane;

[0009] The drive assembly includes a winding motor provided at the end of the winding shaft, and an adjustable fixing unit provided on the output shaft of the winding motor and arranged between the winding motor and the winding shaft; the adjustable fixing unit includes a clamp provided at the end of the winding shaft, and a three-jaw chuck provided on the clamp and coaxially arranged on the output shaft of the winding motor;

[0010] A circuit board is provided in the control box. A controller and a memory connected to the controller are integrated on the circuit board. The output end of the second tension sensor and the output end of the first tension sensor are both connected to the input end of the controller.

[0011] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that: the transmission assembly includes a driving wheel arranged at the end of the first unwinding roller and connected to the unwinding motor, a driven wheel arranged at the end of the second unwinding roller and cooperating with the driving wheel, and a conveyor belt connected between the driving wheel and the driven wheel, and the driving wheel and the driven wheel are both arranged on the side close to the unwinding motor.

[0012] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that: the support assembly includes a lower pressure roller arranged on the unwinding rack and two guide support rollers both arranged on the unwinding rack and cooperating with the lower pressure roller, a composite strip is passed between the two guide support rollers, and the lower pressure roller and the guide support rollers are both installed on the unwinding rack.

[0013] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that a reducer is provided on the output shaft of the winding motor, and the reducer is arranged between the winding motor and the three-jaw chuck; the second tension sensor is arranged on the output end of the reducer.

[0014] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that: the structures of the first unwinding roller and the second unwinding roller are the same, and the first unwinding roller and the second unwinding roller both include a horizontally arranged unwinding shaft, an expansion and contraction ring sleeved on the unwinding shaft, and an expansion and contraction slider coaxially arranged with the unwinding shaft and arranged between the unwinding shaft and the expansion and contraction ring; the expansion and contraction slider is installed on the unwinding shaft through an adjusting nut; a roller gap is opened on the unwinding shaft, and the roller gap is arranged along the length direction of the unwinding shaft.

[0015] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that a limit groove is horizontally provided on the winding shaft, and the limit groove is arranged along the length direction of the winding shaft.

[0016] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that: the clamp includes a material roll baffle that cooperates with the three-jaw chuck, a limit pin horizontally arranged in the middle of the material roll baffle and cooperates with the limit groove, and a limit screw arranged on the limit pin, and the material roll baffle and the limit pin are integrally formed.

[0017] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that: a sliding guide rail is provided on the top of the guide rail frame, and the sliding guide rail is arranged along the length direction of the guide rail frame; the sliding guide rail includes a fixed frame arranged on the top of the guide rail frame and a guide rail horizontally arranged on the fixed frame, one end of the guide rail is provided with a fixed seat, and the fixed seat is arranged in the fixed frame; the other end of the guide rail is provided with a sliding seat cooperating with the guide rail, and the sliding seat is arranged in the fixed frame; an adjustment handle is provided on one side of the fixed frame, and a scale handwheel is provided on the adjustment handle.

[0018] The above-mentioned Cu-Nb composite strip winding device for pulse magnets is characterized in that: two support rods are horizontally arranged in the fixed frame, and the guide rail is arranged between the two support rods; a fixed plate is vertically arranged in the fixed frame, and the fixed plate is arranged between the fixed seat and the sliding seat, and the fixed plate is passed through the guide rail and is rotatably connected to the guide rail; the fixed seat and the fixed plate are connected by a positioning pin.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] 1. The present invention combines a discharge mechanism and a take-up mechanism with a reasonable structural design and simple operation, and realizes the winding of copper and niobium strips. Compared with the traditional process, it greatly reduces the number of steps and reduces the labor cost. In addition, the speed and tension of the take-up and discharge during the winding process can be adjusted according to the actual working conditions, and the winding quality is guaranteed.

[0021] 2. The present invention utilizes an adjustable fixing unit to fix the end of the reel, which facilitates the replacement and disassembly of the reel, breaks through conventional assembly methods, reduces assembly times, speeds up package assembly efficiency, and greatly reduces labor costs.

[0022] 3. The present invention greatly solves the problems of loose manual winding rolls, roll flatness, and difficult package assembly by cooperating with the controller with the second tension sensor and the first tension sensor, thereby speeding up the subsequent package assembly process.

[0023] 4. The present invention solves the problem that the diameter of the material roll continues to increase during the winding process, and the winding shaft cannot be loaded with force due to its small diameter, resulting in slipping and climbing, by cooperating with the clamp and the three-jaw chuck, when the diameter of the winding shaft is objectively limited and cannot be enlarged. This ensures the winding quality and winding density.

[0024] To sum up, the present invention combines the unwinding mechanism and the receiving mechanism, and has a reasonable structural design and simple operation, which can realize the winding of copper strip rolls and niobium strip rolls. Compared with the traditional process, it greatly reduces the number of working steps and reduces the labor cost. In addition, the speed and tension of the unwinding and receiving tapes during the winding process can be adjusted according to the actual working conditions, and the quality of the winding is guaranteed. Through the cooperation of the clamp and the three-jaw chuck, when the diameter of the winding shaft is objectively limited and cannot be enlarged, the problem of the continuous increase in the diameter of the material roll during the winding process and the inability to load the force on the winding shaft due to its small diameter is solved, thereby ensuring the winding quality and density.

[0025] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the first unwinding roller and the second unwinding roller of the present invention.

[0028] Figure 3 It is a top view of the reel of the present invention.

[0029] Figure 4 It is a left side view of the reel of the present invention.

[0030] Figure 5 Schematic diagram of the structure of the clamp of the present invention.

[0031] Figure 6 It is the front view of the sliding guide rail of the present invention.

[0032] Figure 7 It is a top view of the sliding guide rail of the present invention.

[0033] Figure 8 This is a circuit principle block diagram of the present invention.

[0034] Description of the accompanying drawings:

[0035] 1—unloading motor; 2—first tension sensor; 3—magnetic powder clutch;

[0036] 4—unloading rack; 5—coupling; 6—second unloading roller;

[0037] 7—first unloading roller; 8—lower pressing roller; 9—guide support roller;

[0038] 10—composite belt; 11—conveyor belt; 12—tightening spring;

[0039] 13—reducer; 14—three-jaw chuck; 15—rewinding shaft;

[0040] 15-1—limiting slot; 16—clamp; 16-1—limiting screw;

[0041] 16-2—material roll baffle; 16-3—limit pin; 17—winding motor;

[0042] 18—Second tension sensor; 19—Location pin; 20—Sliding guide rail;

[0043] 21—guide rail frame; 22—unwinding shaft; 23—expansion and contraction ring;

[0044] 24 - expansion and contraction slider; 25 - mounting slot; 26 - controller;

[0045] 27—adjusting nut; 28—control box; 29—driving wheel;

[0046] 30—driven wheel; 31—storage device; 32—roller gap;

[0047] 33 - fixed frame; 34 - guide rail; 35 - sliding seat;

[0048] 36—adjusting handle; 37—support rod; 38—scale handwheel;

[0049] 39—fixed seat; 40—fixed plate. DETAILED DESCRIPTION

[0050] like Figures 1 to 8 As shown, the present invention includes a control box 28, and a material discharging mechanism and a material receiving mechanism both connected to the control box 28;

[0051] The unloading mechanism includes an unloading rack 4, a double unloading assembly arranged on the unloading rack 4, and a unloading motor 1 arranged on the unloading rack 4 and connected to the double unloading assembly. A supporting assembly is provided on the unloading rack 4.

[0052] The double unwinding assembly includes a first unwinding roller 7 horizontally arranged on the unwinding frame 4 and connected to the unwinding motor 1, and a second unwinding roller 6 horizontally arranged above the first unwinding roller 7 and connected to the first unwinding roller 7; the first unwinding roller 7 and the unwinding motor 1 are connected via a coupling 5; the first unwinding roller 7 and the second unwinding roller 6 are connected via a transmission assembly; a magnetic powder clutch 3 and a first tension sensor 2 are provided on the output shaft of the unwinding motor 1;

[0053] The material receiving mechanism includes a guide rail frame 21 provided on one side of the unwinding frame 4, a reeling shaft 15 provided on the guide rail frame 21, and a drive assembly provided at the end of the reeling shaft 15 and connected to the guide rail frame 21; the reeling shaft 15 and the first unwinding roller 7 are arranged in the same horizontal plane;

[0054] The drive assembly includes a winding motor 17 provided at the end of the winding shaft 15, and an adjustable fixing unit provided on the output shaft of the winding motor 17 and arranged between the winding motor 17 and the winding shaft 15; the adjustable fixing unit includes a clamp 16 provided at the end of the winding shaft 15, and a three-jaw chuck 14 provided on the clamp 16 and coaxially arranged on the output shaft of the winding motor 17;

[0055] A circuit board is provided in the control box 28 , on which the controller 26 and a memory 31 connected to the controller 26 are integrated. The output end of the second tension sensor 18 and the output end of the first tension sensor 2 are both connected to the input end of the controller 26 .

[0056] The present invention combines a feeding mechanism and a receiving mechanism, has a reasonable structural design and is easy to operate, and can realize the winding of copper strip coils and niobium strip coils. Compared with traditional processes, it greatly reduces the number of working steps and reduces labor costs. In addition, the speed and tension of the winding and feeding during the winding process can be adjusted according to actual working conditions, thereby ensuring the quality of the winding.

[0057] The present invention utilizes an adjustable fixing unit to fix the end of the take-up shaft 15, which facilitates the replacement and disassembly of the take-up shaft 15, breaks through conventional assembly methods, reduces assembly times, speeds up package assembly efficiency, and greatly reduces labor costs.

[0058] The present invention solves the problems of loose manual winding rolls, roll flatness, and difficult package assembly by cooperating with the controller 26, the second tension sensor 18, and the first tension sensor 2, thereby speeding up the subsequent package assembly process.

[0059] The present invention solves the problem that the diameter of the material roll continues to increase during the winding process, and the winding shaft cannot be loaded with force due to its small diameter, resulting in slipping and climbing, by cooperating with the clamp 16 and the three-jaw chuck 14, when the diameter of the winding shaft 15 is objectively limited and cannot be enlarged, thereby ensuring the winding quality and winding density.

[0060] In actual use, a magnetic powder clutch 3 is installed at the connection between the unwinding motor 1 and the first unwinding roller 7 for braking. The first tension sensor 2 is used to detect the unwinding tension to prevent the roll from unwinding. Both the unwinding motor 1 and the winding motor 17 are controlled by a motor driver. The motor controller is installed in the control box 28. The motor controller is an MA860C stepper motor controller with built-in high-resolution ultra-low vibration and noise, high-resolution optically isolated differential signal input, a wide current range, a high pulse response, a 4-digit dial, 16-speed subdivision, and overvoltage, undervoltage, and short-circuit protection.

[0061] In actual use, the controller 26 used to control the unwinding motor 1 and winding motor 17, as well as the programs for adjusting tension, was written using LabView. Tension control can be independently controlled using a dedicated controller. The tension controller is a ZXT-B series fully digital, high-precision, automatic constant tension controller with a measurement accuracy of ≤±1N and a sampling rate of 100ms. It provides a 0-2A DC output and features high-precision A / D and D / A converters. This tension controller compares the detected web tension with the set target tension and automatically adjusts the D / A output through PID calculations, altering the magnetic powder clutch and brake excitation currents to achieve constant web tension. The control unit issues control commands through the controller 26. After algorithmic processing, these commands are generated and fed to the motor driver, thereby controlling the direction and speed of the stepper motor.

[0062] It should be noted that the present invention is not only well suited for winding Cu-Nb composite strips, but can also be used for winding other strips with special assembly requirements. The steps for using the winding device are as follows:

[0063] Step 1: Discharging, the process is as follows:

[0064] Step 101, tighten the adjusting nuts 27 on the first unloading roller 7 and the second unloading roller 6 to open the roller gap between the first unloading roller 7 and the second unloading roller 6;

[0065] Step 102: insert one end of the copper strip and niobium strip to be wound into the roller gaps of the first unwinding roller 7 and the second unwinding roller 6, respectively, and rotate the adjusting nut 27 in the opposite direction to close the roller gap and clamp the strip;

[0066] Step 103: Manually pull the other end of the copper strip and niobium strip to be wound, and the controller 26 controls the unwinding motor 1 to drive the first unwinding roller 7 and the second unwinding roller 6 to rotate counterclockwise, winding the copper strip and niobium strip to be wound onto the first unwinding roller 7 and the second unwinding roller 6, respectively; then turn off the unwinding motor 1;

[0067] Step 2: Adjust the position of the drive assembly. The process is as follows:

[0068] Step 201: Install the reel 15 in the fixture 16 and fix the position of the reel 15 with the limit screw 16-1; then clamp the fixture 16 in the three-jaw chuck 14;

[0069] Step 202: Adjust the position of the reducers 13 in the two drive assemblies on the sliding guide rails 20 and fix them according to the winding requirements;

[0070] Step 3: Setting the target tension: The ends of the copper strip coil and the niobium strip coil wound onto the first unwinding roller 7 and the second unwinding roller 6 in step 1 are pulled out and aligned to form a composite strip 10, and the composite strip 10 is passed through the area between the two guide support rollers 9; the lower pressure roller 8 is lowered and brought into contact with the composite strip 10; and the target tension for winding and unwinding is set in the memory 31;

[0071] Step 4: Winding: The controller 26 controls the unwinding motor 1 and the winding motor 17 to operate, and simultaneously drives the first unwinding roller 7 , the second unwinding roller 6 and the winding shaft 15 to rotate, so as to wind the composite tape 10 .

[0072] like Figure 1 As shown, in this embodiment, the transmission assembly includes a driving wheel 29 arranged at the end of the first unloading roller 7 and connected to the unloading motor 1, a driven wheel 30 arranged at the end of the second unloading roller 6 and cooperating with the driving wheel 29, and a conveyor belt 11 connected between the driving wheel 29 and the driven wheel 30. The driving wheel 29 and the driven wheel 30 are both arranged on the side close to the unloading motor 1.

[0073] In actual use, the first unwinding roller 7 and the second unwinding roller 6 are synchronously driven by the transmission assembly to achieve synchronous counterclockwise unwinding of the material roll in the same direction during the unwinding process.

[0074] like Figure 1 As shown, in this embodiment, the support assembly includes a lower pressure roller 8 arranged on the unloading rack 4 and two guide support rollers 9 both arranged on the unloading rack 4 and cooperating with the lower pressure roller 8, a composite belt 10 is passed between the two guide support rollers 9, and the lower pressure roller 8 and the guide support rollers 9 are both installed on the unloading rack 4.

[0075] In actual use, one end of the composite strip 10 is connected to the unwinding mechanism, and the other end of the composite strip 10 is connected to the receiving mechanism; the composite strip 10 is a composite strip of the copper strip and the niobium strip to be wound.

[0076] In this embodiment, a reducer 13 is provided on the output shaft of the winding motor 17 , and the reducer 13 is arranged between the winding motor 17 and the three-jaw chuck 14 ; the second tension sensor 18 is arranged on the output end of the reducer 13 .

[0077] In actual use, both the unwinding motor 1 and the rewinding motor 17 are 86-type two-phase asynchronous motors. The reducer 13 is an NMRV worm gear reducer with a reduction ratio of 10:1. This reducer features an aluminum alloy housing, offering lightweight, superior strength, high heat dissipation, long life, and low noise. The center axis of the reducer 13's output shaft, the center axis of the three-jaw chuck 14, the center axis of the rewinding shaft 15, and the second tension sensor 18 are all coaxially fixed to the guide rail 21 at the same height, ensuring that the unwinding and rewinding sections maintain the same level.

[0078] like Figure 2 As shown, in this embodiment, the structures of the first unwinding roller 7 and the second unwinding roller 6 are the same, and the first unwinding roller 7 and the second unwinding roller 6 both include a horizontally arranged unwinding shaft 22, an expansion and contraction ring 23 sleeved on the unwinding shaft 22, and an expansion and contraction slider 24 coaxially arranged with the unwinding shaft 22 and arranged between the unwinding shaft 22 and the expansion and contraction ring 23; the expansion and contraction slider 24 is installed on the unwinding shaft 22 through an adjusting nut 27; a roller gap 32 is opened on the unwinding shaft 22, and the roller gap 32 is arranged along the length direction of the unwinding shaft 22.

[0079] In actual use, the ends of the first unloading roller 7 and the second unloading roller 6 are both rotatably connected to the unloading frame 4. The first unloading roller 7 rotates under the drive of the unloading motor 1, and the second unloading roller 6 rotates synchronously with the first unloading roller 7 under the drive of the transmission assembly. The expansion and contraction slider 24 is provided with a through slot that cooperates with the roller gap 32, and the through slot is connected to the roller gap 32. It should be noted that the first unloading roller 7 and the second unloading roller 6 are connected by a mechanical expansion and contraction structure. The expansion and contraction purpose is achieved by adjusting the tightness of the nut 27 and the inclined surface of the expansion and contraction slider 24 and the expansion and contraction ring 23, thereby achieving the function of adjusting the size of the roller gap 32 and clamping and loosening the strip roll. The expansion and contraction slider 24 is mounted on the unwinding shaft 22. The three-petal expansion sleeve between the two expansion rings 23 is formed. The expansion and contraction sleeve is provided with a mounting slot 25. The tightening spring 12 is installed in the mounting slot 25. The purpose of the tightening spring 12 is to clamp the three-petal expansion sleeve. When the adjusting nut 27 is tightened, the expansion and contraction slider 24 is squeezed, and the variable diameter structure of the expansion and contraction slider 24 expands the expansion and contraction sleeve, thereby expanding the corresponding roller gap 32. Conversely, when the adjusting nut 27 is loosened, the expansion and contraction slider 24 is withdrawn, and the roller gap 32 closes, clamping the coil.

[0080] like Figure 3 and Figure 4 As shown, in this embodiment, a limiting groove 15 - 1 is horizontally provided on the winding shaft 15 , and the limiting groove 15 - 1 is arranged along the length direction of the winding shaft 15 .

[0081] In actual use, the reel 15 is made of pure copper, and the stop slot 15-1 is used to prevent the tape from falling off. The length of the reel 15 can be adjusted by shaking the graduated handwheel 20-4 on the sliding guide rail 20. The linear screw 20-6 drives the reducer slide 20-5 to adjust the spacing, thereby adjusting the width between the reducers 13, to facilitate the winding of rolls of different sizes.

[0082] like Figure 5 As shown, in this embodiment, the clamp 16 includes a material roll baffle 16-2 that cooperates with the three-jaw chuck 14, a limit pin 16-3 horizontally arranged in the middle of the material roll baffle 16-2 and cooperates with the limit groove 15-1, and a limit screw 16-1 arranged on the limit pin 16-3. The material roll baffle 16-2 and the limit pin 16-3 are integrally formed.

[0083] In actual use, the clamp 16 used to fix the reel 15 is made of copper alloy, and the limit between the reel 15 and the clamp 16 is a clearance fit; a straight-line limit pin 16-3 is used between the clamp 16 and the reel 15. Through the quick-insert limit method, the reel 15 can be easily pulled out after winding the composite tape 10, avoiding the reel 15 from slipping when the diameter of the material roll increases.

[0084] like Figure 6 and Figure 7 As shown, in this embodiment, a sliding guide rail 20 is provided at the top of the guide rail frame 21, and the sliding guide rail 20 is arranged along the length direction of the guide rail frame 21; the sliding guide rail 20 includes a fixed frame 33 arranged at the top of the guide rail frame 21 and a guide rail 34 horizontally arranged on the fixed frame 33, and one end of the guide rail 34 is provided with a fixed seat 39, and the fixed seat 39 is arranged in the fixed frame 33; the other end of the guide rail 34 is provided with a sliding seat 35 cooperating with the guide rail 34, and the sliding seat 35 is arranged in the fixed frame 33; an adjustment handle 36 is provided on one side of the fixed frame 33, and a scale handwheel 38 is provided on the adjustment handle 36.

[0085] like Figure 6 and Figure 7 As shown, in this embodiment, two support rods 37 are horizontally arranged in the fixed frame 33, and the guide rail 34 is arranged between the two support rods 37; a fixed plate 40 is vertically arranged in the fixed frame 33, and the fixed plate 40 is arranged between the fixed seat 39 and the sliding seat 35, and the fixed plate 40 is passed through the guide rail 34 and is rotatably connected to the guide rail 34; the fixed seat 39 and the fixed plate 40 are connected by a positioning pin 19.

[0086] In actual use, the reducer 13 is mounted on the fixed seat 39 or the sliding seat 35 via a fixing nut.

[0087] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A Cu-Nb composite strip winding device for pulse magnets, characterized in that: It includes a control box, and a material discharging mechanism and a material receiving mechanism both connected to the control box; The material discharging mechanism comprises a discharging frame, a double discharging assembly arranged on the discharging frame, a discharging motor and a support assembly; the double discharging assembly comprises a first discharging roller connected to the discharging motor, and a second discharging roller horizontally arranged above the first discharging roller and connected to the first discharging roller; the first discharging roller and the second discharging roller are connected by a transmission assembly; a magnetic powder clutch and a first tension sensor are arranged on the output shaft of the discharging motor; the structures of the first discharging roller and the second discharging roller are the same, and the first discharging roller and the second discharging roller both comprise a horizontally arranged unwinding shaft, an expansion and contraction ring sleeved on the unwinding shaft, and an expansion and contraction slider coaxially arranged with the unwinding shaft and arranged between the unwinding shaft and the expansion and contraction ring; the expansion and contraction slider is installed on the unwinding shaft through an adjusting nut; a roller gap is opened on the unwinding shaft, and the roller gap is arranged along the length direction of the unwinding shaft; the support assembly comprises a lower pressure roller arranged on the discharging frame and two guide support rollers both arranged on the discharging frame and cooperating with the lower pressure roller, a composite belt is passed through the two guide support rollers, and the lower pressure roller and the guide support roller are both installed on the discharging frame; The material receiving mechanism includes a guide rail frame arranged on one side of the unwinding frame, a winding shaft arranged on the guide rail frame, and a driving assembly arranged at the end of the winding shaft and connected to the guide rail frame; the winding shaft and the first unwinding roller are arranged in the same horizontal plane; a limit slot is horizontally provided on the winding shaft, and the limit slot is arranged along the length direction of the winding shaft; the driving assembly includes a winding motor and an adjustable fixing unit arranged between the winding motor and the winding shaft; the adjustable fixing unit includes a clamp arranged at the end of the winding shaft, and a three-jaw chuck arranged on the clamp and coaxially arranged on the output shaft of the winding motor; the clamp includes a material roll baffle cooperated with the three-jaw chuck, a limit pin horizontally arranged in the middle of the material roll baffle and cooperated with the limit slot, and a limit screw arranged on the limit pin, and the material roll baffle and the limit pin are integrally formed; a reducer is provided on the output shaft of the winding motor, and the reducer is arranged between the winding motor and the three-jaw chuck; the second tension sensor is arranged on the output end of the reducer.

2. The Cu-Nb composite strip winding device for pulse magnets according to claim 1, characterized in that: A circuit board is provided in the control box. The circuit board is integrated with a controller and a memory connected to the controller. The output end of the second tension sensor and the output end of the first tension sensor are both connected to the input end of the controller.

3. The Cu-Nb composite strip winding device for pulse magnets according to claim 1, characterized in that: The transmission assembly includes a driving wheel arranged at the end of the first unloading roller and connected to the unloading motor, a driven wheel arranged at the end of the second unloading roller and cooperating with the driving wheel, and a conveyor belt connected between the driving wheel and the driven wheel. The driving wheel and the driven wheel are both arranged on the side close to the unloading motor.

4. The Cu-Nb composite strip winding device for pulse magnets according to claim 1, characterized in that: A sliding guide rail is provided at the top of the guide rail frame, and the sliding guide rail is arranged along the length direction of the guide rail frame; the sliding guide rail includes a fixed frame arranged at the top of the guide rail frame and a guide rail horizontally arranged on the fixed frame, one end of the guide rail is provided with a fixed seat, and the fixed seat is arranged in the fixed frame; the other end of the guide rail is provided with a sliding seat cooperating with the guide rail, and the sliding seat is arranged in the fixed frame; an adjustment handle is provided on one side of the fixed frame, and a scale handwheel is provided on the adjustment handle.

5. The Cu-Nb composite strip winding device for pulse magnets according to claim 4, characterized in that: Two support rods are horizontally arranged in the fixed frame, and the guide rail is arranged between the two support rods; a fixed plate is vertically arranged in the fixed frame, and the fixed plate is arranged between the fixed seat and the sliding seat, and the fixed plate is passed through the guide rail and is rotatably connected to the guide rail; the fixed seat and the fixed plate are connected by a positioning pin.

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