Double-station multi-head winding machine

Abstract

The invention discloses a double-station multi-head winding machine, and relates to the technical field of coil flying fork winding, the double-station multi-head winding machine comprises a fixed table and two tension stabilizers, and the tension stabilizers are provided with tension adjusting assemblies; according to the adjusting tensioning assembly in the device, the length of a force arm and the pretension amount of a tension spring can be adjusted by moving a connecting point between a sliding block and a swing arm, adjusting plates and fixed hanging points with different rigidities do not need to be replaced, sliding adjustment can be achieved only by loosening a locking piece, and therefore the debugging time is shortened, and the debugging efficiency is improved. The problems that in the prior art, two or more fixed connecting points are preset on a swing arm, different connecting points correspond to different tension gears, and consequently the adjusting range is fixed are solved, and when different products or wire diameters require different tensions, tension springs of various specifications need to be prepared, and the production cost is reduced are solved. In this way, the connecting point of the tension spring and the swing arm is arranged to be of a slidable and locked structure, and the adaptability of winding different types of non-flat conductive wires on a coil framework in the inductor manufacturing link is improved.

Description

Technical Field

[0001] This invention relates to the field of coil flying fork winding technology, and more specifically, to a dual-station multi-head winding machine. Background Technology

[0002] A dual-station multi-head winding machine is an automated device used for winding coils (such as motor stator coils, transformer coils, etc.), consisting of a flying fork winding arm and a tension stabilizer; Existing tension stabilizers typically employ a spring-swing arm structure. The principle is to use the tension of the spring to compensate for changes in the tension of the conductor and achieve dynamic balance. Current technology usually has two or more fixed spring connection points pre-set on the swing arm, with different connection points corresponding to different tension levels, which cannot achieve continuous tension adjustment. Furthermore, in order to obtain different tensions, operators need to replace springs with springs of different stiffness or change the position of the hanging point. This process requires stopping the machine for disassembly and installation, which is cumbersome. When different products or wire diameters require different tensions, multiple specifications of springs need to be prepared, and the cost of spare parts is high. In traditional fly fork winding arms, the lead tip is usually fixedly installed at the end of the fly fork tube. Its direction and angle are usually fixed with the axis of the fly fork tube and the angle cannot be adjusted. The fixed structure makes it impossible to change the wire output direction according to product requirements. Only the entire fly fork head or lead tip can be replaced. However, when the wire output angle is fixed, the wire tension and wire entry angle during automatic wire laying are not easy to coordinate, which can easily cause problems such as uneven winding and uneven gaps between wires.

[0003] To solve the above problems, the inventors proposed a dual-station multi-head winding machine. Summary of the Invention

[0004] To solve the above-mentioned technical problems, a dual-station multi-head winding machine is provided. This technical solution solves the problems mentioned in the background technology. To achieve the above objectives, the present invention can be implemented using the following technical solutions: This invention provides a dual-station multi-head winding machine, including a fixed platform and two tension stabilizers. Two flying fork tubes are symmetrically rotatably connected to the fixed platform, and a force gauge and a swing arm are rotatably connected to each tension stabilizer. The tension stabilizer is equipped with an adjustable tension assembly, which includes a fixed frame rotatably connected to each force gauge, a guide rod fixedly connected to each fixed frame, a threaded rod rotatably connected to each fixed frame, a knob rotatably connected to the outer wall of each fixed frame, each threaded rod fixedly connected to a nearby knob, an adjusting plate slidably connected to the outer surface of each guide rod, a tension spring fixedly connected to the bottom of each adjusting plate, a connecting frame slidably connected to the outer wall of each fixed frame, an elongated hole on each swing arm, a slider slidably connected to the outer wall of each swing arm, a follower block slidably connected to each swing arm, and a cam handle threadedly connected to each follower block.

[0005] Preferably, each of the knobs is interference-fitted with the adjacent mounting frame.

[0006] Preferably, each of the adjusting plates is threadedly connected to a nearby threaded rod, each of the tension springs is fixedly connected to a nearby connecting frame, and each of the connecting frames is rotatably connected to a nearby slider.

[0007] Preferably, each of the elongated holes is connected to the inner cavity of the adjacent swing arm, each of the cam handles consists of a cam shank, a T-shaped shaft, and a bushing, and each of the elongated holes is slidably connected to the T-shaped shaft in the adjacent cam handle.

[0008] Preferably, the fly fork tube is provided with a direction adjustment assembly, which includes a fixed sleeve fixedly connected to each fly fork tube, a disc fixedly connected to each fixed sleeve, a rotating platform rotatably connected to each disc, an annular groove on the surface of each rotating platform, a U-shaped frame fixedly connected to each rotating platform, a connecting plate rotatably connected inside each U-shaped frame, each connecting plate consisting of a T-shaped plate and round shafts fixed to both sides of the T-shaped plate, and a lead wire nozzle detachably connected to the bottom of each connecting plate by bolts.

[0009] Preferably, the direction adjustment assembly includes a cam handle two threadedly connected to each disc, and each of the connecting plates has a threaded hole on its circular shaft, with a nut threadedly connected to each threaded hole.

[0010] Preferably, each of the discs and U-shaped frames is provided with a scale, and each of the rotating platforms and connecting plates is provided with a pointer on its circular shaft.

[0011] Preferably, each of the cam handles consists of a cam shank, a T-shaped shaft, and a bushing, and each of the annular grooves is slidably connected to the T-shaped shaft in the adjacent cam handle.

[0012] Preferably, a retaining washer is provided between each nut and the adjacent U-shaped bracket.

[0013] As described above, the advantages of this invention are: The tension adjustment component in this device allows for adjustment of the lever arm length and tension spring preload by moving the connection point between the slider and the swing arm. This eliminates the need to replace adjustment plates and fixed mounting points of varying stiffness; adjustment is achieved simply by loosening the locking mechanism, thus reducing setup time. This solves the problems of existing technologies that require two or more fixed connection points on the swing arm, each corresponding to a different tension level, resulting in a fixed adjustment range. It also addresses the need to prepare various specifications of tension springs when different products or wire diameters require different tensions. This device, by setting the connection point between the tension spring and the swing arm as a sliding and locking structure, improves the adaptability of the coil bobbin winding with different types of non-flat conductive wires during inductor manufacturing.

[0014] The direction adjustment component in this device, by setting an adjustable lead-in nozzle structure at the front end of the fly fork tube, allows the lead-in nozzle's lead-out angle to be adjusted in azimuth and pitch according to the shape of the winding frame or the winding direction. This solves the problem in the prior art where the lead-in nozzle uses a fixed structure, and its lead-out angle cannot be adjusted after installation. The fixed structure cannot meet the winding requirements of different coil frames, causing deviations in the winding position of the wire and resulting in a decrease in the winding quality of the coil frame. In this way, this device can quickly adjust the lead-in nozzle angle when winding coils with different types of frames without replacing the lead-in nozzle.

[0015] The tension adjustment component and the direction adjustment component in this device work together to improve the neatness of the winding and effectively reduce the tension fluctuation of the wire through the synergistic effect of tension adjustment and angle adjustment. The coordination of the two can form the optimal winding trajectory, making the inter-turn arrangement of the coil skeleton more uniform, and solving the problem of irregular coil shape caused by tension or wire direction mismatch in traditional structures. Attached Figure Description

[0016] Figure 1 This is a front perspective view of the overall structure of the present invention; Figure 2 This is a three-dimensional schematic diagram of the force gauge and related components of the fixing frame shown in this invention; Figure 3 This is a three-dimensional schematic diagram of the adjusting plate and tension spring components shown in this invention; Figure 4 This is an exploded perspective view of the fixed frame and connecting frame shown in the present invention; Figure 5 This is a three-dimensional schematic diagram of the slider and follower block components shown in this invention; Figure 6This is an exploded three-dimensional schematic diagram of the follower block and cam handle shown in the present invention; Figure 7 This is a three-dimensional schematic diagram of the connecting plate and lead wire nozzle components shown in this invention; Figure 8 This is an exploded three-dimensional schematic diagram of the disc and cam handle shown in the present invention; Figure 9 This is a three-dimensional schematic diagram of the connecting plate and bolt-related components shown in this invention; Figure 10 As shown in this invention Figure 7 A magnified 3D schematic diagram of part A; Figure 11 Figure (a) is a planar schematic diagram of the cam handle one shown in the present invention, and Figure (b) is a planar schematic diagram of the related components of the cam handle two. The reference numerals in the accompanying drawings of this invention are as follows: 1. Fixed platform; 11. Flying fork tube; 2. Tension stabilizer; 21. Force gauge; 22. Swing arm; Tension adjustment assembly: 31. Fixed frame; 32. Guide rod; 33. Threaded rod; 34. Knob; 35. Adjusting plate; 36. Tension spring; 37. Connecting frame; 38. Long slot; 39. Slider; 310. Follower block; 311. Cam handle one; Direction adjustment components: 41. Fixed sleeve; 42. Disc; 43. Rotary table; 44. Annular groove; 45. U-shaped frame; 46. Connecting plate; 47. Lead wire nozzle; 48. Cam handle II; 49. Nut. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] The embodiments provided by the present invention will be described in detail below: A dual-station multi-head winding machine, such as Figure 1 As shown, it includes a fixed platform 1 and two tension stabilizers 2. The two tension stabilizers 2 are symmetrically arranged. Two flying fork tubes 11 are symmetrically rotatably connected to the fixed platform 1. Each tension stabilizer 2 is rotatably connected to a force gauge 21 and a swing arm 22. The force gauge 21 is located above the adjacent swing arm 22. The flying fork tubes 11, force gauges 21 and swing arms 22 are all existing technologies and will not be described in detail here. like Figures 2 to 6As shown, the tension stabilizer 2 is equipped with an adjustable tension assembly, which includes a fixed frame 31 rotatably connected to each force gauge 21. The fixed frame 31 is located below the adjacent force gauge 21. A guide rod 32 is fixedly connected to the inner wall of each fixed frame 31, and a threaded rod 33 is rotatably connected to the inner wall of each fixed frame 31. The threaded rod 33 is arranged parallel to the adjacent guide rod 32. A knob 34 is rotatably connected to the top surface of the outer wall of each fixed frame 31. The knob 34 is located above the adjacent threaded rod 33, and each threaded rod 33 is fixed to the adjacent knob 34. The connection includes an adjusting plate 35 slidably connected to the outer surface of each guide rod 32, a tension spring 36 fixedly connected to the side of each adjusting plate 35 away from the adjacent force gauge 21, a connecting frame 37 slidably connected to the outer wall of each fixed frame 31, an elongated hole 38 opened on the outer wall of each swing arm 22, a slider 39 slidably connected to the outer wall of each swing arm 22, a follower block 310 slidably connected inside each swing arm 22, and a cam handle 311 threadedly connected to each follower block 310. The initial state of each cam handle 311 is the locked state.

[0019] Furthermore, such as Figure 3 and Figure 4 As shown, each knob 34 is interference-fitted with the adjacent mounting frame 31.

[0020] Furthermore, such as Figure 2 and Figure 3 As shown, each adjusting plate 35 is threadedly connected to the adjacent threaded rod 33, and the end of each tension spring 36 away from the adjacent adjusting plate 35 is fixedly connected to the adjacent connecting frame 37. Each connecting frame 37 is rotatably connected to the adjacent slider 39. Since the swing arm 22 has its own gravity, the gravity of the swing arm 22 will pull the tension spring 36 in the connecting frame 37, so that the tension spring 36 is initially in a stretched state.

[0021] Furthermore, such as Figure 5 and Figure 6 As shown, each elongated hole 38 is connected to the inner cavity of the adjacent swing arm 22. Each cam handle 311 consists of a cam shank, a T-shaped shaft, and a bushing. The T-shaped shaft in the cam handle 311 passes through the adjacent slider 39 and is located inside the adjacent follower block 310. The bushing in the cam handle 311 is in close contact with the outer wall of the slider 39. Thus, when the cam handle 311 is in the locked state, the slider 39 can be fixed by squeezing the bushing. Each elongated hole 38 is slidably connected to the T-shaped shaft in the adjacent cam handle 311.

[0022] Furthermore, such as Figures 7 to 11As shown, a direction adjustment assembly is provided on the fly fork tube 11. The direction adjustment assembly includes a fixed sleeve 41 fixedly connected to the outer ring surface of each fly fork tube 11. A disc 42 is fixedly connected to the upper surface of each fixed sleeve 41. A rotating platform 43 is rotatably connected to the side of each disc 42 away from the adjacent fixed sleeve 41. An annular groove 44 is opened on the surface of each rotating platform 43. A U-shaped frame 45 is fixedly connected to the side of each rotating platform 43 away from the disc 42. A connecting plate 46 is rotatably connected inside each U-shaped frame 45. Each connecting plate 46 is composed of a T-shaped plate and round shafts fixed on both sides of the T-shaped plate. A lead wire nozzle 47 is detachably connected to the bottom surface of each connecting plate 46 by bolts. The lead wire nozzle 47 is located at the end of the adjacent fly fork tube 11.

[0023] Furthermore, such as Figure 8 , Figure 10 and Figure 11 As shown in Figures (a) and (b), the direction adjustment assembly includes a cam handle 48 threadedly connected to each disc 42. Each connecting plate 46 has a threaded hole on the outer ring surface of the circular shaft on one side, and each threaded hole is threaded with a nut 49, which is used to lock and fix the connecting plate 46.

[0024] Furthermore, such as Figure 8 and Figure 10 As shown, each disc 42 and the outer wall of the U-shaped frame 45 are equipped with a scale, and each rotating platform 43 and the connecting plate 46 are equipped with a pointer on the circular shaft. The scale and pointer can help the staff record the azimuth angle of the lead tip 47 and the pitch angle.

[0025] Furthermore, such as Figure 8 As shown, each cam handle 48 consists of a cam shank, a T-shaped shaft, and a bushing. The T-shaped shaft in the cam handle 48 passes through the adjacent rotary table 43 and is located inside the adjacent disc 42. The bushing in the cam handle 48 is in close contact with the upper surface of the rotary table 43. Thus, when the cam handle 48 is in the locked state, the rotary table 43 can be fixed by squeezing the bushing. Each annular groove 44 is slidably connected to the T-shaped shaft in the adjacent cam handle 48.

[0026] Furthermore, such as Figure 9 As shown, a retaining washer is provided between each nut 49 and the adjacent U-shaped bracket 45. The retaining washer is used to prevent the nut 49 from rotating relative to each other, thereby preventing the connecting plate 46 from becoming loose.

[0027] During work: This device can set appropriate tension for different types of non-flat wires. The detailed steps are as follows: The operator rotates the cam handle 311 outward, causing the cam in the cam handle to rotate eccentrically until the part of the cam with the smallest radius is directly opposite the end face of the bushing. At this point, there is a clear gap between the cam and the end face of the bushing. At this time, the bushing no longer presses the slider 39, allowing the slider 39 to slide freely along the outer wall of the swing arm 22. In this way, the slider 39 is no longer locked. Then, according to the required tension, the operator moves the slider 39 along the outer wall of the swing arm 22, and the follower block 310 moves together with the slider 39. When high tension is required, the slider 39 is moved toward the side closer to the connection point between the swing arm 22 and the tension stabilizer 2. When the slider 39 moves along the outer wall of the swing arm 22 toward the side closer to the connection fulcrum between the swing arm 22 and the tension stabilizer 2, the connecting frame 37 moves along the outer wall of the fixed frame 31 toward the side away from the fixed frame 31. During this process, the tension spring 36 is stretched longer, which shortens the lever arm of the tension spring 36 (i.e., the vertical distance from the line of action of the spring force to the fulcrum), further causing the swing arm 22 to lose balance. In order to return to the balance state, the swing arm 22 will rotate downward about the connection fulcrum with the tension stabilizer 2 as the axis until the torque between the swing arm 22 and the tension spring 36 is balanced again. When low tension is required, the slider 39 is moved away from the connection point between the swing arm 22 and the tension stabilizer 2. When the slider 39 moves along the outer wall of the swing arm 22 away from the connection point between the swing arm 22 and the tension stabilizer 2, the connecting frame 37 moves along the outer wall of the fixed frame 31 towards the side closer to the fixed frame 31. During this process, the tension spring 36 rebounds but remains in a stretched state, which causes the lever arm of the tension spring 36 to extend, further causing the swing arm 22 to lose balance. In order to return to the balanced state, the swing arm 22 will rotate upward about the connection point with the tension stabilizer 2 as the axis until the torque between the swing arm 22 and the tension spring 36 is balanced again. When the value displayed on the force gauge 21 is about to rise or fall to the required high tension value or low tension value, the cam handle in the cam handle 311 is reversed, and the cam rotates accordingly. Its outer radius gradually increases. The cam contacts and presses the end face of the bushing through eccentric rotation. When the cam handle rotates back to the initial position, the cam rotates to its maximum lift point, that is, the position with the largest eccentricity. At this time, the bushing presses the slider 39, thereby locking and fixing the slider 39, so that the slider 39 cannot slide freely along the outer wall of the swing arm 22 and is in a stationary state. Then, fine-tuning of the reference tension is performed: When making fine adjustments, the operator can rotate the knob 34 clockwise or counterclockwise to move the adjustment plate 35 downward or upward along the guide rod 32, thereby compressing or stretching the tension spring 36. At the same time, observe the value displayed on the force gauge 21. When the measured value reaches the required high tension value or low tension value, stop rotating the knob 34.

[0028] In this way, as the slider 39 gradually approaches the connection point between the swing arm 22 and the tension stabilizer 2, the lever arm of the tension spring 36 is shortened, and the swing arm 22 becomes a "force-consuming lever". At this time, the tension spring 36 can generate a large torque with slight deformation, and the wire must use a lot of force to pull the swing arm 22. Therefore, the reference tension becomes higher, which is suitable for winding thicker wires in the coil frame. As the slider 39 gradually moves away from the connection point between the swing arm 22 and the tension stabilizer 2, the lever arm of the tension spring 36 is lengthened, and the swing arm 22 becomes a "force-saving lever". In contrast to the "force-consuming lever", the reference tension becomes lower, which is suitable for winding thinner wires in the coil frame.

[0029] In the above process, the tension adjustment component in this device can adjust the lever arm length and the preload of the tension spring 36 by moving the connection point between the slider 39 and the swing arm 22. There is no need to replace the adjustment plate 35 with different stiffness and the fixed hanging point. The adjustment can be made by simply loosening the locking part, thereby reducing the debugging time. This solves the problem in the prior art that two or more fixed connection points are preset on the swing arm 22, and different connection points correspond to different tension levels, resulting in a fixed adjustment range. It also solves the problem that different products or wire diameters require different tensions, and that multiple specifications of tension springs 36 need to be prepared. In this way, this device sets the connection point between the tension spring 36 and the swing arm 22 to be slidable and lockable, which improves the adaptability of the coil bobbin winding with different types of non-flat conductive wires in the inductor manufacturing process.

[0030] This device can adjust the wire exit direction of the lead tip 47. The detailed steps are as follows: When different winding skeletons need to be wound, the operator first rotates the cam handle in cam handle 48 upwards, so that the cam in the cam handle rotates eccentrically until the part with the smallest radius of the cam is directly facing the end face of the bushing. At this time, there is a clear gap between the cam and the end face of the bushing. At this time, the bushing no longer squeezes the rotating table 43, so that the rotating table 43 is no longer locked and can rotate freely. The operator can adjust the azimuth angle of the lead nozzle 47 as needed. When the azimuth angle needs to be adjusted, the rotary table 43 can be rotated clockwise or counterclockwise. The rotary table 43 drives the lead nozzle 47 on the connecting plate 46 to rotate clockwise or counterclockwise together. At the same time, the operator can observe the pointer on the outer ring of the rotary table 43 and the relationship between it and the scale on the upper surface of the disc 42, and record it so that it can be quickly adjusted when winding the same type of winding skeleton again. After the azimuth angle of the lead wire nozzle 47 is adjusted, the operator reverses the cam handle in the cam handle 48. The cam rotates accordingly, and its outer radius gradually increases. The cam contacts and presses the end face of the bushing through eccentric rotation. When the cam handle rotates back to the initial position, the cam rotates to its maximum lift point, that is, the position with the largest eccentricity. At this time, the bushing presses the rotary table 43, thereby locking the rotary table 43, so that the rotary table 43 cannot rotate freely and is in a stationary state. The operator can also adjust the pitch angle of the lead tip 47 as needed. When adjusting the pitch angle of the lead tip 47, first remove the nut 49 fixed on the outer round shaft of the connecting plate 46. Then, the operator can rotate the connecting plate 46 up or down as needed to adjust the pitch angle of the lead tip 47. At the same time, the operator can observe the relationship between the pointer on the outer round shaft of the connecting plate 46 and the dial on the outer wall of the U-shaped frame 45 and record it so that it can be quickly adjusted when winding the same type of winding frame again. After the pitch angle of the lead tip 47 is adjusted, the staff will tighten the nut 49 again to fix the lead tip 47 and keep it in a stationary state. In this way, the azimuth and pitch angle adjustments of the lead tip 47 are completed, that is, the adjustment of the wire output direction. Through the design of the adjustable angle lead tip 47, the wire guide no longer needs to be replaced with the fly fork tube 11. The wire output direction can be adjusted by simply adjusting the orientation of the lead tip 47, thereby ensuring that the wire enters the winding groove of the coil bobbin smoothly and unimpeded, thus improving the quality and consistency of wire routing.

[0031] In the above process, the direction adjustment component in this device, by setting an adjustable lead-in nozzle 47 structure at the front end of the fly fork tube 11, allows the lead-in nozzle 47 to adjust its azimuth and pitch angles according to the shape of the winding skeleton or the winding direction, adapting to various process requirements. This solves the problem in the prior art where the lead-in nozzle 47 adopts a fixed structure, and its lead-in angle cannot be adjusted after installation. The fixed structure cannot take into account the winding requirements of different coil skeletons, causing the wire to deviate in the winding position, resulting in a decrease in the winding quality of the coil skeleton. In this way, when winding coils for different types of skeletons, this device can quickly adjust the angle of the lead-in nozzle 47 without replacing the lead-in nozzle 47.

[0032] In the above process, the tension adjustment component and the direction adjustment component in this device work together to improve the winding neatness and effectively reduce wire tension fluctuations through the synergistic effect of tension adjustment and angle adjustment. The coordination of the two can form the optimal winding trajectory, making the coil skeleton more uniformly arranged between turns, and solving the problem of irregular coil shape caused by tension or wire direction mismatch in traditional structures.

[0033] The above description is merely an embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual-station multi-head winding machine, comprising a fixed table (1) and two tension stabilizers (2), characterized in that, Two flying fork tubes (11) are symmetrically rotatably connected to the fixed platform (1), and a force gauge (21) and a swing arm (22) are rotatably connected to each tension stabilizer (2). The tension stabilizer (2) is provided with an adjustable tension assembly, which includes a fixed frame (31) rotatably connected to each force gauge (21), a guide rod (32) fixedly connected inside each fixed frame (31), a threaded rod (33) rotatably connected inside each fixed frame (31), a knob (34) rotatably connected to the outer wall of each fixed frame (31), and each threaded rod (33) fixedly connected to a nearby knob (34). The outer surface of each guide rod (32) is... An adjusting plate (35) is slidably connected. A tension spring (36) is fixedly connected to the bottom of each adjusting plate (35). A connecting frame (37) is slidably connected to the outer wall of each fixed frame (31). An elongated hole (38) is opened on each swing arm (22). A slider (39) is slidably connected to the outer wall of each swing arm (22). A follower block (310) is slidably connected inside each swing arm (22). A cam handle (311) is threadedly connected to each follower block (310).

2. The dual-station multi-head winding machine according to claim 1, characterized in that, Each of the knobs (34) is interference-fitted with the adjacent mounting frame (31).

3. The dual-station multi-head winding machine according to claim 1, characterized in that, Each of the adjustment plates (35) is threadedly connected to the adjacent threaded rod (33), each of the tension springs (36) is fixedly connected to the adjacent connecting frame (37), and each of the connecting frames (37) is rotatably connected to the adjacent slider (39).

4. A dual-station multi-head winding machine according to claim 1, characterized in that, Each of the elongated holes (38) is connected to the inner cavity of the adjacent swing arm (22), and each of the cam handles (311) consists of a cam shank, a T-shaped shaft and a bushing. Each of the elongated holes (38) is slidably connected to the T-shaped shaft in the adjacent cam handle (311).

5. A dual-station multi-head winding machine according to claim 1, characterized in that, The fork tube (11) is provided with a direction adjustment assembly, which includes a fixed sleeve (41) fixedly connected to each fork tube (11), a disc (42) fixedly connected to each fixed sleeve (41), a rotating platform (43) rotatably connected to each disc (42), an annular groove (44) opened on the surface of each rotating platform (43), a U-shaped frame (45) fixedly connected to each rotating platform (43), a connecting plate (46) rotatably connected inside each U-shaped frame (45), each connecting plate (46) is composed of a T-shaped plate and round shafts fixed on both sides of the T-shaped plate, and a lead wire nozzle (47) is detachably connected to the bottom of each connecting plate (46) by bolts.

6. A dual-station multi-head winding machine according to claim 5, characterized in that, The direction adjustment assembly includes a cam handle (48) threadedly connected to each disc (42), and each connecting plate (46) has a threaded hole on its circular shaft, and each threaded hole is threadedly connected to a nut (49).

7. A dual-station multi-head winding machine according to claim 5, characterized in that, Each of the discs (42) and U-shaped frames (45) is provided with a scale, and each of the rotating platforms (43) and connecting plates (46) is provided with a pointer on the circular shaft.

8. A dual-station multi-head winding machine according to claim 6, characterized in that, Each of the cam handles (48) consists of a cam shank, a T-shaped shaft and a bushing, and each of the annular grooves (44) is slidably connected to the T-shaped shaft in the adjacent cam handle (48).

9. A dual-station multi-head winding machine according to claim 6, characterized in that, Each of the nuts (49) is provided with a retaining washer between it and the adjacent U-shaped bracket (45).

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