An adjustable out-of-position welding device for amorphous ribbon winding

Abstract

The utility model discloses an adjustable outer welding device for amorphous strip winding, more particularly to the amorphous strip processing equipment technical field, is fixed on the winding machine, including support mechanism, welding mechanism and pressure mechanism, and support mechanism includes fixed bolster, sliding block and the drive assembly of drive sliding block movement, welding mechanism includes connecting rod and the outer welding cutter of being connected to the one end of connecting rod, and pressure mechanism includes the L shape rotation seat of being connected between sliding block and connecting rod and the elastic component of being arranged between L shape rotation seat and connecting rod, to adjust the pressure between outer welding cutter and winding material through the deformation of elastic component. The utility model adjusts the overall length of outer welding device through drive assembly, to adapt to different winding material size, and outer welding cutter is pushed down under the support mechanism and completes welding, and pressure mechanism utilizes the deformation of elastic component and dynamically controls the welding pressure when outer welding cutter and winding material contact, guarantees that outer welding head is always close to winding material joint in the welding process, and the stability of welding is ensured.

Description

Technical Field

[0001] This utility model belongs to the technical field of amorphous strip processing equipment, specifically relating to an adjustable external welding device for winding amorphous strips. Background Technology

[0002] During the strip winding process, the edges of the strip need to be welded and fixed by an external welding device. Especially for winding machines that process amorphous and nanocrystalline magnetic cores, the welding pins of the welding mechanism have high requirements for assembly precision. However, traditional external welding devices have problems such as insufficient adjustment precision and unstable welding pressure, which can easily lead to incomplete welding, deformation or cracking at the strip welding points, resulting in poor winding uniformity and large quality fluctuations of the magnetic core.

[0003] Existing devices typically use counterweights to provide welding pressure. However, counterweights cannot provide effective cushioning, are difficult to replace, and are hard to adapt to the welding requirements of strips of different thicknesses. In addition, the design of the fixed welding head fixes the welding mechanism in a specific position on the frame, making it impossible to move laterally to adjust the position of the strip to adapt to the welding point, which affects winding efficiency and product quality.

[0004] Therefore, there is an urgent need for an external welding device that is flexibly adjustable and has a buffer function to meet the high-precision welding requirements of amorphous strip winding. Utility Model Content

[0005] This invention provides an adjustable external welding device for winding amorphous ribbon to solve at least one of the above-mentioned technical problems.

[0006] The technical solution adopted by this utility model is as follows: an adjustable external welding device for winding amorphous strip, fixed on a winding machine, including a support mechanism for adjusting the length of the external welding device, a welding mechanism for welding the joint of the amorphous strip, and a pressure mechanism for buffering the welding pressure. The support mechanism includes a fixed support, a sliding block, and a driving assembly for driving the sliding block to move. The welding mechanism includes a connecting rod and an external welding knife connected to one end of the connecting rod. The pressure mechanism includes an L-shaped rotating seat connected between the sliding block and the connecting rod and an elastic assembly disposed between the L-shaped rotating seat and the connecting rod, so as to adjust the pressure between the external welding knife and the strip by the deformation of the elastic assembly.

[0007] In a preferred embodiment, the L-shaped rotating seat has a protrusion at one end away from the sliding block, and the connecting rod is connected to the protrusion via a rotating shaft; the elastic component includes a tension spring and a guide rod connected to the end of the connecting rod near the protrusion.

[0008] In a preferred embodiment, the elastic component includes a pressure spring and a sleeve, with one end of the connecting rod away from the outer welding knife slidably passing through the sleeve, and the pressure spring connected to the connecting rod and abutting against the inner wall of the sleeve.

[0009] In a preferred embodiment, a limiting block is provided at one end of the connecting rod located inside the sleeve, and a limiting groove adapted to the limiting block is provided on the inner wall of the sleeve, the limiting groove extending along the axial direction of the connecting rod.

[0010] In a preferred embodiment, the pressure mechanism further includes a buffer assembly, which includes a limiting base and a limiting post fixedly connected to the limiting base. A silicone pad is provided at one end of the limiting post near the L-shaped rotating seat.

[0011] In a preferred embodiment, the drive assembly includes an externally welded cylinder connected between the fixed support and the sliding block to adjust the position of the sliding block by the movement of the externally welded cylinder.

[0012] In a preferred embodiment, the driving assembly includes a lead screw connected to the sliding block and a motor that drives the lead screw to move the sliding block along the axial direction of the lead screw.

[0013] In a preferred embodiment, the support mechanism further includes a length scale marking, which is arranged along the length adjustment direction of the support mechanism.

[0014] In a preferred embodiment, the connecting rod has a first locking post and a second locking post at one end near the outer welding knife, and the first locking post and the second locking post have protrusions; the outer welding knife has a circular hole that mates with the first locking post and the second locking post.

[0015] Due to the adoption of the above technical solution, the beneficial effects achieved by this utility model are as follows:

[0016] 1. In a preferred embodiment of this utility model, the main support mechanism of the device drives the sliding block to move through the drive component, adjusting the overall length of the outer welding device to adapt to different coil sizes. The outer welding blade contacts the coil joint under the push of the support mechanism, and generates high temperature after being energized to complete the welding. The pressure mechanism uses the deformation of the elastic component to dynamically control the welding pressure when the outer welding blade contacts the coil, ensuring that the outer welding head is always close to the coil joint during the welding process, thus ensuring the stability of the welding.

[0017] 2. In a preferred embodiment of this utility model, the "lever structure" of the L-shaped rotating seat's protrusion, connecting rod, and rotating shaft allows the connecting rod to rotate flexibly around the rotating shaft as a fulcrum. The tension spring in the elastic component provides pressure control, while the guide rod provides axial guidance for the spring deformation. Specifically, when the outer welding blade contacts the coil material, the reaction force of the coil material on the welding blade pushes the connecting rod to rotate around the rotating shaft. At this time, the tension spring is stretched, generating a rebound force that forms a reverse force balanced with the contact pressure. Through the change in the spring's tension, pressure fluctuations during the welding process can be buffered in real time, ensuring that the outer welding blade always applies stable pressure to the coil material, thus guaranteeing welding strength and preventing excessive pressure from damaging the amorphous ribbon.

[0018] 3. In a preferred embodiment of this utility model, the welding pressure is buffered and adjusted by the compression deformation of the pressure spring. Specifically, the elastic restoring force of the pressure spring will form a buffer force that balances the reaction force, thereby avoiding damage to the amorphous strip due to excessive welding pressure. At the same time, it ensures that the outer welding knife adheres to the coil with appropriate pressure to ensure the welding effect. Furthermore, the sleeve provides a guiding function for the sliding of the connecting rod, restricts the movement direction of the connecting rod, and ensures the stability and directionality of the buffer force.

[0019] Furthermore, the use of limit blocks and limit grooves achieves the purpose of limiting and guiding, further improving the stability of the elastic component and the accuracy of pressure control. Specifically, the cooperation of the two prevents the connecting rod from rotating circumferentially within the sleeve, thus avoiding spring misalignment, jamming, or uneven force due to connecting rod rotation, ensuring the stability of welding pressure; and the length of the limit groove determines the maximum sliding stroke of the connecting rod, indirectly limiting the tensile length of the pressure spring.

[0020] 4. In a preferred embodiment of this utility model, the pressure adjustment range of the pressure mechanism is limited by a buffer assembly, thus avoiding damage to components under extreme working conditions. When the pressure mechanism rotates excessively due to abnormal force, the limiting post limits the maximum displacement through rigid contact with the L-shaped rotating seat, while the silicone pad absorbs the collision energy through its own deformation, converting the rigid impact into a flexible buffer. This prevents the pressure mechanism from being damaged beyond its travel range and avoids damage to components due to violent collisions.

[0021] 5. In a preferred embodiment of this utility model, the sliding block is moved by the telescopic movement of the external welding cylinder to achieve the purpose of adjusting the position of the external welding knife. When compressed air is introduced into the cylinder, the piston rod extends or retracts under the action of air pressure, thereby directly driving the sliding block to make linear motion. This linear motion can accurately transmit power, effectively adjust the position of the sliding block, and then drive the pressure mechanism and welding mechanism connected to the sliding block to move as a whole, realizing the change of the spatial position of the external welding knife to adapt to the needs of different coil diameters and welding positions.

[0022] In addition, when the drive assembly is set as a lead screw and a motor, the cooperation structure of the two uses the power of the motor to drive the lead screw to rotate. Through the threaded engagement between the lead screw and the sliding block, the rotational motion of the motor is converted into the axial linear motion of the sliding block, thereby realizing the precise control of the position of the pressure mechanism and welding mechanism connected to the sliding block.

[0023] In addition, the support mechanism also includes length scale markings, and the drive component can precisely control the movement distance of the slider according to the scale, further improving the accuracy of position adjustment.

[0024] 6. In a preferred embodiment of this utility model, the outer welding knife and connecting rod are quickly assembled and disassembled through the engagement of the first locking post, the second locking post, and the circular hole. The outer diameters of the first and second locking posts are adapted to the inner diameter of the circular hole on the outer welding knife, and the protrusions on the locking posts extend radially outward. When the locking post is inserted into the circular hole, the first and second locking posts merge towards each other. After full insertion, the outer wall of the locking post engages with the inner wall of the circular hole, forming an axial limit to prevent the outer welding knife from falling off the connecting rod under welding pressure. This design enables the rapid assembly and disassembly of the outer welding knife, ensuring the safety and stability of the welding process. Attached Figure Description

[0025] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0026] In the attached diagram:

[0027] Figure 1 This is a schematic diagram of the adjustable external welding device for winding amorphous ribbon according to the present invention.

[0028] Figure 2 This is a schematic diagram of the elevation structure of the adjustable external welding device;

[0029] Figure 3 This is a cross-sectional schematic diagram of the tension spring and guide rod;

[0030] Figure 4 This is a cross-sectional schematic diagram of the compression spring and the sleeve;

[0031] Figure 5 This is a structural diagram of the lead screw and motor;

[0032] Figure 6 This is a cross-sectional schematic diagram of the first and second locking posts;

[0033] Figure label:

[0034] 1. Support mechanism; 11. Fixed support; 12. Sliding block;

[0035] 2. Welding mechanism; 21. Connecting rod; 211. Circular hole; 22. External welding knife; 221. First locking pin; 222. Second locking pin; 223. Protrusion;

[0036] 3. Pressure mechanism; 31. L-shaped rotary seat; 311. Protrusion; 312. Rotating shaft;

[0037] 4. Drive assembly; 41. Externally welded cylinder; 42. Lead screw; 43. Motor;

[0038] 5. Elastic component; 51. Tension spring; 52. Guide rod; 53. Compression spring; 54. Sleeve; 541. Limiting block; 542. Limiting groove;

[0039] 6. Buffer assembly; 61. Limiting base; 62. Limiting post; 621. Silicone pad. Detailed Implementation

[0040] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0042] Furthermore, it should be understood in the description of this utility model that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "aspect," or "specific example" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] Example 1:

[0046] A preferred embodiment, such as Figure 1 and Figure 2 As shown, an adjustable external welding device for winding amorphous strip is described. When the equipment is started, the winding machine winds the amorphous strip to a predetermined position. The strip joint to be welded stops below the external welding knife 22. The drive component 4 pushes the sliding block 12 to drive the L-shaped rotating seat 31 to rotate according to the diameter of the strip and the welding position requirements, thereby adjusting the radial position of the external welding knife 22 so that the external welding knife 22 contacts the strip joint. As shown in the figure, the external welding cylinder 41 sends a command to the external welding cylinder 41 to introduce compressed air. The piston rod extends under the action of air pressure, pushing the sliding block 12 to move closer to the strip. The movement of sliding block 12 causes L-shaped rotating seat 31 to rotate, thereby moving the welding mechanism 2 forward as a whole. The outer welding blade 22 gradually approaches the welding head of the amorphous strip. During this process, the support mechanism 1 is equipped with length scale markings. The operator or control system can monitor the movement distance of sliding block 12 in real time according to the scale, ensuring that the outer welding blade 22 accurately approaches the welding position along the predetermined trajectory. At the moment of contact, the elastic component 5 begins to deform, generating a buffering force opposite to the propulsion force, ensuring that the outer welding blade 22 adheres to the strip with constant pressure. The outer welding blade 22 is energized, generating high temperature to melt the strip joint and complete the welding. During the welding process, if the coil exhibits slight radial runout due to winding precision, the elastic component 5 will compensate for the pressure fluctuation in real time through slight changes in the amount of stretching (elongation or shortening), ensuring that the adhesion force between the outer welding blade 22 and the strip remains consistent. After welding is completed, the drive component 4 drives sliding block 12 to move in the opposite direction, and the outer welding blade 22 detaches from the surface of the coil, preparing for the next welding.

[0047] Meanwhile, the support mechanism also includes a buffer assembly 6. The limiting base 61 is fixed in a suitable position on the support mechanism 1, providing a stable installation foundation for the entire buffer assembly 6. When the drive assembly 4 pushes the sliding block 12 to rotate the L-shaped rotating seat 31, the L-shaped rotating seat 31 is pushed to a certain extent and will contact the limiting post 62 in the buffer assembly 6. At this time, the buffer assembly 6 limits the maximum range of the L-shaped rotating seat 31. If an abnormal situation occurs during the welding process, such as improper control of the drive assembly 4 causing the sliding block 12 to move excessively, causing the L-shaped rotating seat 31 of the pressure mechanism 3 to move excessively, it will contact the silicone pad 621 on the limiting post 62 of the buffer assembly 6 near the end of the pressure mechanism 3. The silicone pad 621 will first undergo elastic deformation, absorbing some of the collision energy and reducing the impact force between the pressure mechanism 3 and the limiting post 62. If the pressure mechanism 3 continues to move, the limiting post 62 will block its further movement, preventing the pressure mechanism 3 from causing the welding mechanism 2 to collide violently with the coil due to excessive movement, avoiding damage to components and serious impact on welding quality.

[0048] Example 2:

[0049] like Figure 2 As shown, an adjustable external welding device for amorphous strip winding differs from Embodiment 1. When the external welding blade 22 contacts the strip joint, the reaction force generated by the coil on the external welding blade 22 allows the connecting rod 21 to rotate flexibly around the pivot 312 on the protrusion, forcing the connecting rod 21 to rotate upwards around the pivot 312. This rotational action compresses the tension spring 51, and the spring's rebound force is transmitted to the external welding blade 22 through the connecting rod 21, forming a stable welding pressure. During this process, the guide rod 52 restricts the left and right deviation of the spring, ensuring that the spring force always acts along the tension spring 51, preventing instability caused by the tension spring 51 wobbling. The external welding blade 22 generates high temperature when energized, melting the strip joint to complete the welding. During welding, if the coil exhibits slight radial runout due to winding precision issues, the tension spring 51 compensates for pressure fluctuations in real time through subtle changes in its tension, ensuring consistent contact between the welding blade and the strip. Simultaneously, the rotational connection between the L-shaped rotating seat and the connecting rod 21 allows the welding blade to finely adjust its angle according to the coil's curvature, ensuring full contact between the welding surfaces. This structure, through a combination of rotational hinge and elastic tension, achieves both adaptive angle control of the outer welding blade 22 and precise control of welding pressure via spring force, effectively improving the stability of welding quality.

[0050] Example 3:

[0051] like Figure 3As shown, an adjustable external welding device for amorphous strip winding differs from Embodiment 1. When the external welding blade 22 contacts the coil, the coil generates a reaction force on the external welding blade 22, forcing the connecting rod 21 to slide inward into the sleeve 54. As the connecting rod 21 slides, the pressure spring 53 connected to the connecting rod 21 is compressed by the pressure of the connecting rod 21, generating an elastic restoring force. This elastic restoring force is transmitted to the external welding blade 22 through the connecting rod 21, causing the external welding blade 22 to press against the coil joint with stable pressure. The sleeve 54 provides precise guidance for the sliding of the connecting rod 21 during this process, ensuring the stability of the compression direction of the pressure spring 53. During the welding process, if the coil exhibits slight radial runout, the pressure spring 53 will compensate through slight changes in compression. That is, when the force applied by the coil to the external welding blade 22 increases, the spring compression increases, and the restoring force increases; conversely, when the compression decreases, the restoring force decreases, thereby ensuring that the welding pressure is always within a suitable range, thus ensuring the stability of the welding process.

[0052] Simultaneously, as the connecting rod 21 is forced to slide inward into the sleeve 54, the limiting block 541 on the connecting rod 21 slides synchronously along the limiting groove 542 on the inner wall of the sleeve 54, providing axial guidance for the connecting rod 21. The limiting block 541 moves smoothly along the limiting groove 542, strictly limiting the circumferential degree of freedom of the connecting rod 21, preventing it from rotating or deviating during movement, and ensuring that the outer welding knife 22 is accurately aligned with the strip joint. After welding is completed, the drive assembly 4 drives the sliding block 12 to retract, the coil reaction force disappears, and the pressure spring 53 rebounds, pushing the connecting rod 21 to slide outward into the sleeve 54. The length of the limiting groove 542 limits the release of pressure from the pressure spring 53, thus preventing the connecting rod 21 from detaching from the sleeve 54 due to excessive pressure release, thereby ensuring the continuity and stability of the welding process.

[0053] Example 4:

[0054] like Figure 4As shown, an adjustable external welding device for amorphous strip winding differs from Embodiment 1. The drive assembly 4 includes a lead screw 42 connected to a sliding block 12 and a motor 43 driving the lead screw 42. The motor 43 drives the sliding block 12 to move axially along the lead screw 42. When welding is required, the motor 43 starts and rotates in a set direction, causing the lead screw 42 connected to it to rotate synchronously. Since the sliding block 12 and the lead screw 42 are connected by a thread, the rotation of the lead screw 42 causes the sliding block 12 to move axially towards the coil, causing the L-shaped rotating seat 31 to rotate. This, in turn, causes the welding mechanism 2 to move forward as a whole, followed by the external welding knife 22 performing its operation. After the welding operation is completed, the control system controls the motor 43 to rotate in the opposite direction. The rotation of the lead screw 42 causes the sliding block 12 to move axially away from the coil, causing the pressure mechanism 3 and the welding mechanism 2 to retract as a whole. The external welding knife 22 then detaches from the coil, awaiting the next welding operation. This design enables efficient adjustment of the position of the outer welding knife 22, which, in conjunction with the pressure mechanism 3 and the welding mechanism 2, improves the efficiency and accuracy of welding.

[0055] Example 5:

[0056] like Figure 5 As shown, an adjustable external welding device for winding amorphous ribbon differs from Embodiment 1. In this device, the operator aligns the first locking post 221 and the second locking post 222 of the external welding knife 22 with the corresponding circular holes 211 on the connecting rod 21 and applies axial force to push the external welding knife 22. The protrusions 223 on the locking posts press against the edge of the circular holes 211. After slight deformation, the first locking post 221 and the second locking post 222 smoothly pass through the circular holes 211 until the protrusions 223 completely pass through the circular holes 211 and spring back to their original position, engaging with the edge on the other side of the circular holes 211, thus completing the installation of the external welding knife 22. This structure has multiple components, which can evenly distribute the pressure, ensuring that the connection between the external welding knife 22 and the connecting rod 21 is free from axial movement and circumferential rotation. Furthermore, the engaging action of the two components prevents the external welding knife 22 from retracting under pressure, ensuring stable welding pressure. When the outer welding knife 22 needs to be replaced due to wear or failure, the operator pulls the outer welding knife 22 outward along the axis. The first clamping post 221 and the second clamping post 222 are squeezed against each other, and the two deform again. After being released from the limit of the round hole 211, the clamping post is pulled out, and the disassembly of the outer welding knife 22 is completed. Compared with bolt connection and other methods, this structure does not require additional tools, and the disassembly time can be shortened to a few seconds, which significantly improves the equipment maintenance efficiency and reduces the downtime of the winding machine.

[0057] For any parts not mentioned in this utility model, existing technologies can be used or referenced.

[0058] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0059] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. An adjustable external welding device for winding amorphous ribbon, fixed on a winding machine, characterized in that, It includes a support mechanism (1) for adjusting the length of the external welding device, a welding mechanism (2) for welding amorphous strip joints, and a pressure mechanism (3) for buffering welding pressure. The support mechanism (1) includes a fixed support (11), a sliding block (12), and a drive assembly (4) for driving the sliding block (12) to move. The welding mechanism (2) includes a connecting rod (21) and an external welding knife (22) connected to one end of the connecting rod (21). The pressure mechanism (3) includes an L-shaped rotating seat (31) connected between the sliding block (12) and the connecting rod (21) and an elastic component (5) disposed between the L-shaped rotating seat (31) and the connecting rod (21) to adjust the pressure between the outer welding knife (22) and the strip by the deformation of the elastic component (5).

2. The adjustable external welding device for winding amorphous ribbon according to claim 1, characterized in that, The L-shaped rotating seat (31) has a protrusion (311) at one end away from the sliding block (12), and the connecting rod (21) is connected to the protrusion (311) through the rotating shaft (312); The elastic component (5) includes a tension spring (51) and a guide rod (52) connected to the end of the link (21) near the protrusion (311).

3. The adjustable external welding device for winding amorphous ribbon according to claim 1, characterized in that, The elastic component (5) includes a pressure spring (53) and a sleeve (54). The end of the connecting rod (21) away from the outer welding knife (22) is slidably inserted into the sleeve (54). The pressure spring (53) is connected to the connecting rod (21) and abuts against the inner wall of the sleeve (54).

4. The adjustable external welding device for winding amorphous ribbon according to claim 3, characterized in that, The connecting rod (21) is provided with a limiting block (541) at one end inside the sleeve (54), and the inner wall of the sleeve (54) is provided with a limiting groove (542) that is adapted to the limiting block (541), and the limiting groove (542) extends along the axial direction of the connecting rod.

5. The adjustable external welding device for winding amorphous ribbon according to claim 1, characterized in that, The pressure mechanism (3) further includes a buffer assembly (6), which includes a limiting base (61) and a limiting post (62) fixedly connected to the limiting base (61). The limiting post (62) has a silicone pad (621) at one end near the L-shaped rotating seat (31).

6. The adjustable external welding device for winding amorphous ribbon according to claim 1, characterized in that, The drive assembly (4) includes an externally welded cylinder (41) connected between the fixed support (11) and the sliding block (12) to adjust the position of the sliding block (12) by the movement of the externally welded cylinder (41).

7. The adjustable external welding device for winding amorphous ribbon according to claim 1, characterized in that, The drive assembly (4) includes a lead screw (42) connected to the sliding block (12) and a motor (43) that drives the lead screw (42) to move the sliding block (12) axially along the lead screw (42) via the motor (43).

8. The adjustable external welding device for winding amorphous ribbon according to claim 6 or 7, characterized in that, The support mechanism (1) also includes a length scale mark, which is set along the length adjustment direction of the support mechanism (1).

9. The adjustable external welding device for winding amorphous ribbon according to claim 1, characterized in that, The connecting rod (21) has a first locking post (221) and a second locking post (222) at one end near the outer welding knife (22), and the first locking post (221) and the second locking post (222) have protrusions (223). The outer welding knife (22) is provided with a circular hole (211) that cooperates with the first locking post (221) and the second locking post (222).

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