A welding wire guide wheel and a welding wire anti-twist device

Abstract

This utility model relates to the field of welding wire technology, and provides a welding wire guide wheel and a welding wire anti-twist device, including: two limiting blocks and an adjusting component. A limiting portion is formed at the edge of one end face of each limiting block. The two limiting blocks are detachably installed to form the welding wire guide wheel, and the end faces of the two limiting blocks near the limiting portion are in contact. The two limiting portions cooperate to form a limiting groove, the shape of which matches the shape of the welding wire. An adjusting hole is provided on one end face of each limiting block, penetrating through the limiting block. The adjusting component is screwed into the adjusting hole to adjust the distance between the two limiting blocks. By setting two adjustable limiting blocks, the size of the limiting groove can be adjusted, thereby improving the applicability of the welding wire guide wheel, making it suitable for welding wires of different sizes. Simultaneously, the matching of the limiting groove with the shape of the welding wire limits the movement trajectory of the welding wire, preventing twisting during movement.

Description

Technical Field

[0001] This utility model relates to the field of welding wire technology, and in particular to a welding wire guide wheel and a welding wire anti-twist device. Background Technology

[0002] The evolution of photovoltaic module welding wire from the early mainstream flat welding wire to the round welding wire currently used by most manufacturers is primarily based on considerations of shading the solar cells. It is well known that triangular welding wire can utilize almost all vertically incident and obliquely incident light, resulting in the highest light utilization rate; round welding wire can utilize some vertically incident light and a small amount of obliquely incident light, with a slightly lower light utilization rate; ordinary flat welding wire cannot utilize all vertically incident light and most obliquely incident light, resulting in the lowest light utilization rate. Furthermore, triangular welding wire connects to the cell's main grid with its bottom surface, providing a sufficient contact area compared to the line contact of round welding wire, resulting in a stronger weld and reduced contact resistance. However, ensuring that the triangular welding wire does not tilt or twist during the stringing process is particularly important.

[0003] Current welding wire transfer rollers suffer from several technical defects: First, the V-groove design on the integral part leads to a decrease in the fit between the V-groove size and the welding wire as flux continues to adhere, causing the wire to easily detach; second, existing triangular V-grooves only use an inverted triangle design and lack effective anti-detachment stop structures; third, due to manufacturing limitations, it is difficult to process a standard equilateral triangle structure for V-grooves with side lengths of only 0.1-0.3mm; finally, existing technology cannot flexibly adjust the V-groove opening size, which is detrimental to the wiring operation of triangular welding wires. These problems seriously affect the stability and reliability of triangular welding wires in the photovoltaic module welding process. Utility Model Content

[0004] The purpose of this invention is to provide a welding wire guide wheel and a welding wire anti-twist device, which have the advantages of easy adjustment of the limiting groove size, reduced processing difficulty and improved welding wire anti-drop capability.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] According to an embodiment of the present invention, a welding wire guide wheel includes: two limiting blocks and an adjusting member. A limiting portion is formed at the edge of one end face of each limiting block. The two limiting blocks are detachably installed to form the welding wire guide wheel, and the end faces of the two limiting blocks near the limiting portion are in contact with each other. The two limiting portions cooperate to form a limiting groove. The shape of the limiting groove is configured to match the shape of the welding wire. An adjusting hole is provided on one end face of each limiting block. The adjusting hole passes through the limiting block. The adjusting member is screwed into the adjusting hole to adjust the distance between the two limiting blocks.

[0007] According to the embodiment of the present invention, the size of the limiting groove can be adjusted by setting two adjustable limiting blocks, thereby improving the applicability of the welding wire guide wheel and enabling it to be used for welding wires of different sizes. At the same time, the setting of the limiting groove matching the shape of the welding wire limits the movement trajectory of the welding wire and prevents the welding wire from twisting during movement.

[0008] In addition, the welding wire guide wheel according to the above embodiments of this utility model may also have the following additional technical features:

[0009] In some embodiments of this utility model, the limiting part is constructed at the outer contour of one end face of the limiting block, and the limiting groove is a V-shaped groove structure with the groove width gradually decreasing along the radial center direction.

[0010] In some embodiments of this utility model, a limiting member is also included. The limiting member is installed on the outer contour of the two limiting blocks, and the welding wire passing through the limiting groove abuts against the end face of the limiting member near the limiting groove.

[0011] In some embodiments of this utility model, a plurality of the limiting members are mounted radially on the circumferential outer contour surface of the limiting block.

[0012] In some embodiments of this utility model, the limiting part is constructed as a groove at a position near the edge of one end face of the limiting block, the limiting groove is an annular channel whose width gradually decreases along the radial center direction, and the welding wire guide wheel is provided with at least two through holes communicating with the limiting groove.

[0013] In some embodiments of this utility model, the opening direction of the through hole is tangent to the annular channel of the limiting groove.

[0014] In some embodiments of this utility model, a fastener is also included, and an installation hole is provided on the end face of the limiting block. The installation hole passes through the limiting block, and the fastener passes through the installation holes of the two limiting blocks to fix the two limiting blocks in place.

[0015] According to an embodiment of the present invention, the anti-twist device for welding wire includes a bracket, a feeding reel, and the aforementioned welding wire guide rollers. The feeding reel and the two welding wire guide rollers are mounted on the bracket, and the welding wire on the feeding reel passes sequentially through the two welding wire guide rollers to an external device.

[0016] According to the embodiment of the present invention, the anti-twist device for welding wire achieves dynamic adjustment of the size of the limiting groove through a detachable limiting block and an adjusting component. Combined with the limiting component, it effectively prevents the welding wire from falling off, solving the problems of existing V-grooves being easily affected by flux adhesion, insufficient processing accuracy, and poor anti-twist performance. It has the advantages of easy maintenance, adaptability to different welding wire specifications, and improved welding stability.

[0017] In some embodiments of this utility model, the limiting grooves of the two welding wire guide wheels are configured as V-shaped groove structures or annular channel structures.

[0018] In some embodiments of this utility model, the limiting groove of one of the welding wire guide wheels is configured as a V-shaped groove structure, and the limiting groove of the other welding wire guide wheel is configured as an annular channel structure.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the welding wire guide wheel structure according to an embodiment of the present utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the welding wire guide wheel structure according to an embodiment of the present utility model. Figure 2 ;

[0022] Figure 3 for Figure 2 Sectional view at point A;

[0023] Figure 4 for Figure 3 A magnified view of section B;

[0024] Figure 5 for Figure 3 A magnified view of a portion at point C;

[0025] Figure 6 This is a schematic diagram of the welding wire guide wheel structure according to an embodiment of the present utility model. Figure 3 ;

[0026] Figure 7 This is a schematic diagram of the welding wire guide wheel structure according to an embodiment of the present utility model. Figure 4 ;

[0027] Figure 8 for Figure 6 A magnified view of a portion at point D;

[0028] Figure 9 This is a schematic diagram of the anti-twist device for welding wire according to an embodiment of the present invention.

[0029] Figure Labels

[0030] 100. Welding wire anti-twist device; 1. Welding wire guide wheel; 2. Limiting block; 3. Adjusting component; 4. Limiting part; 5. Limiting groove; 6. Adjusting hole; 7. Limiting component; 9. Through hole; 11. Mounting hole; 12. Bracket; 13. Wire feeding wheel; 14. Triangular welding wire; 15. Passing wheel. Detailed Implementation

[0031] The following is a more detailed description of a welding wire guide wheel and a welding wire anti-twist device according to the present invention, with reference to the accompanying drawings, which illustrate preferred embodiments of the present invention. It should be understood that those skilled in the art can modify the present invention described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present invention.

[0032] In the description of this specification, terms such as "one embodiment" or "some embodiments" mean that one or more embodiments of this specification include a particular feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0033] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] In existing technologies, photovoltaic module welding wires have evolved from the early mainstream flat welding wires to the round welding wires currently used by most manufacturers, primarily based on considerations of shading the solar cells. Triangular welding wires can utilize almost all vertically incident and obliquely incident light, achieving the highest light utilization rate, but it is necessary to ensure that they do not tip over or twist during string welding. Current welding wire transition wheels use a structure with V-grooves cut into a single component, which has problems such as flux adhesion leading to groove size mismatch, inability to process equilateral triangles, lack of anti-fall-off blocks, and inability to adjust the opening size.

[0035] To address the aforementioned issues, the existing integral guide wheel structure limits the possibility of adjusting the groove size, leading to flux buildup that cannot adapt to different welding wire sizes. This invention recognizes that a split design allows for adjusting the groove opening by varying the spacing between components, thus accommodating different welding wire specifications. Simultaneously, the detachable limiting block 2 forms a closed limiting groove 5, enabling flexible adjustment while maintaining structural stability. This design solves the problems of maintenance and cleaning difficulties associated with traditional integral structures, while also creating a precisely matched limiting groove 5 that conforms to the welding wire shape through end-face contact.

[0036] Therefore, this utility model proposes a welding wire guide wheel 1 including two limiting blocks 2 and an adjusting member 3. The welding wire guide wheel 1 according to an embodiment of this utility model is described below with reference to the accompanying drawings.

[0037] According to the embodiment of this utility model, the welding wire guide wheel 1, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown, it includes: two limiting blocks 2 and an adjusting member 3. A limiting part 4 is formed at the edge of one end face of the limiting block 2. The two limiting blocks 2 are detachably installed to form the welding wire guide wheel 1, and the end faces of the two limiting blocks 2 close to the limiting part 4 are attached. The two limiting parts 4 cooperate to form a limiting groove 5. The shape of the limiting groove 5 is set to match the shape of the welding wire. An adjusting hole 6 is provided on one end face of the limiting block 2. The adjusting hole 6 passes through the limiting block 2. The adjusting member 3 is screwed into the adjusting hole 6 to adjust the distance between the two limiting blocks 2.

[0038] The limiting block 2 refers to a structural component with a cross-sectional shape matching the welding wire. Specifically, it can be implemented as a split metal block or an engineering plastic part. The limiting portion 4 at its end face edge can cooperate with another limiting block 2 to form a closed limiting groove 5. The adjusting component 3 refers to a mechanical part used to control the distance between the limiting blocks 2. Specifically, it can be implemented as a threaded bolt or screw, changing the relative position of the two limiting blocks 2 by screwing it into the adjusting hole 6. The limiting portion 4 refers to a protrusion or recessed structure formed at the end face edge of the limiting block 2. Specifically, it can be implemented as a V-shaped edge or an arc-shaped groove formed by machining. The cooperation of the two limiting portions 4 can form a limiting channel that perfectly matches the geometry of the welding wire.

[0039] Specifically, after the two limiting blocks 2 are detachably installed, the limiting portions 4 at their end face edges contact each other to form a complete limiting groove 5. When the welding wire passes through the limiting groove 5, the groove wall is completely in contact with the surface of the welding wire, preventing axial rotation or lateral displacement of the welding wire during transmission. The adjusting member 3 is inserted into the adjusting hole 6 of the limiting block 2 via a threaded connection. Rotating the adjusting member 3 can push the limiting block 2 to produce a micron-level displacement, thereby precisely controlling the opening size of the limiting groove 5. This split structure allows the matching degree between the groove and the welding wire to be restored by adjusting the spacing when flux accumulation affects the groove size, while also facilitating disassembly and cleaning.

[0040] Compared to existing technologies, traditional integral guide wheels require complete replacement or reprocessing to change the groove size. This invention, however, achieves adjustable groove opening through the combination of the separate limiting block 2 and the adjusting component 3. Existing V-groove structures cannot form equilateral triangular limiting surfaces, while this invention, through the precise fit of the two limiting blocks 2, can form limiting grooves 5 with arbitrary polygonal cross-sections. Furthermore, existing guide wheels cannot solve the dimensional mismatch problem caused by flux residue, while this invention can actively compensate for groove size changes by adjusting the spacing.

[0041] Through the above technical solution, this utility model achieves precise adjustment of the opening size of the welding wire guide wheel 1, enabling it to adapt to different specifications of triangular welding wire 14 or irregularly shaped cross-section welding wire. The closed-type limiting groove 5 structure effectively prevents the welding wire from twisting or shifting during transmission, and the end-face fitting design ensures the geometric accuracy of the limiting groove 5 shape. The split structure facilitates maintenance and cleaning, solves the problem of groove size mismatch caused by flux residue, and extends the service life of the guide wheel.

[0042] In some embodiments of this utility model, such as Figures 3-5 As shown, the limiting part 4 is constructed on the outer contour of one end face of the limiting block 2, and the limiting groove 5 is a V-shaped groove structure with the groove width gradually decreasing along the radial center direction.

[0043] The limiting part 4 is constructed on the outer contour of one end face of the limiting block 2, meaning that the limiting part 4 is formed in the edge region of the end face of the limiting block 2. Specifically, it can be achieved by machining the groove on the outer edge of the end face of the limiting block 2. By setting the limiting part 4 at the outer contour position, the machining tool can directly enter from the outer edge of the part, which facilitates the control of the forming accuracy of the V-groove.

[0044] The V-shaped groove structure, where the width gradually decreases along the radial direction, refers to a groove with a symmetrical V-shaped cross-section, whose opening size gradually decreases as it approaches the central axis of the guide wheel. Specifically, this can be achieved using a conical groove structure formed by the intersection of two inclined planes, with the angle between the two inclined planes and the horizontal plane set to a range of 30-60 degrees. This gradually narrowing groove shape can create an adaptive clamping space in the radial direction, ensuring that triangular welding wires 14 of different sizes can be effectively positioned.

[0045] Specifically, when the triangular welding wire 14 is inserted into the guide wheel, its bottom surface first contacts the narrow end region of the V-groove. As the welding wire penetrates deeper into the groove, the inclined surfaces on both sides generate a continuous clamping force through elastic deformation. Since the groove width gradually decreases along the radial direction, the welding wire is always subject to centripetal constraint during the rotation of the guide wheel, preventing displacement caused by centrifugal force. The symmetrical structure design of the V-groove ensures that the bottom surface of the welding wire forms a surface contact with the bottom of the groove, effectively dispersing contact stress and avoiding the line contact defects of traditional inverted triangular grooves. The use of an outer contour positioning method during machining allows the tool path to extend along the outer diameter of the guide wheel, reducing the machining difficulty of small-sized V-grooves.

[0046] Compared to existing technologies, the traditional welding wire guide wheel 1 uses a fixed-size V-groove structure, and the groove opening size cannot accommodate welding wires of different specifications. Furthermore, precision cutting is required within the internal area of ​​the part during machining. This invention, through a tapered V-groove design with outer contour positioning, not only expands the guide wheel's adaptability to welding wire sizes but also simplifies the machining process of high-precision grooves. The self-centering characteristic of the tapered groove can compensate for machining errors and avoid welding wire positioning failures caused by groove size deviations.

[0047] Through the above technical solution, this utility model effectively solves the problem of wire detachment caused by mismatch between the V-groove size and the welding wire, while overcoming the technical bottleneck of difficult processing of equilateral triangular grooves. The tapered groove structure ensures the stable positioning of the triangular welding wire 14 under high-speed rotation conditions through adaptive clamping. The outer contour processing method significantly reduces the manufacturing difficulty of micron-level V-grooves, improving the reliability and service life of the guide wheel product.

[0048] In some embodiments of this utility model, such as Figures 1-4 As shown, it also includes the limiting member 7, which is installed on the outer contour of the two limiting blocks 2, and the welding wire passing through the limiting groove 5 abuts against the end face of the limiting member 7 near the limiting groove 5.

[0049] The limiting component 7 refers to the blocking component installed on the outer edge of the guide wheel. Specifically, it can be implemented by a detachable arc-shaped baffle, whose inner end face is flush with the outer contour of the guide wheel.

[0050] The outer contour refers to the annular area on the outer side of the limiting block 2 that contacts the outside. Specifically, it can be achieved by machining a stepped mounting groove so that the limiting member 7 can be embedded and form a continuous transition with the surface of the guide wheel.

[0051] The phrase "stopped against the end face of the limiting member 7 near the limiting groove 5" means that the welding wire always maintains contact with the inner end face of the limiting member 7 during operation. Specifically, this can be achieved by adjusting the installation angle of the limiting member 7 so that the inner end face of the limiting member 7 forms an angle with the direction of the welding wire's travel.

[0052] Specifically, the guide wheel formed by the assembly of the two limiting blocks 2 has an installation groove on its outer circumference, and the limiting member 7 is fixed in the installation groove by bolts. When the triangular welding wire 14 passes through the limiting groove 5, its corner part is blocked by the inner end face of the limiting member 7 and cannot deviate outward. The contact area between the inner end face of the limiting member 7 and the welding wire is processed into an inclined plane, which forms an acute angle with the direction of the welding wire's travel, so that the welding wire is continuously guided to the center position of the limiting groove 5 during movement. The installation position of the limiting member 7 is precisely calculated to ensure that the contact pressure between its inner end face and the edge of the welding wire is sufficient to counteract the displacement tendency caused by vibration.

[0053] Compared to existing technologies, traditional guide wheels only constrain the welding wire within the V-groove, but lack a blocking structure on the open side of the groove. This invention adds a limiting member 7 to the outer periphery of the guide wheel, forming a second physical barrier that strictly restricts the welding wire's movement within the closed space formed by the groove and the inner end face of the limiting member 7. Compared to the prior art's method of preventing detachment solely relying on the friction of the V-groove, this invention, through the rigid blocking effect of the limiting member 7, effectively resists the centrifugal force generated by the high-speed movement of the welding wire.

[0054] Through the above technical solution, this utility model solves the technical problem of welding wire easily detaching from the guide wheel during high-speed transmission. The rigid contact surface of the limiting member 7 forms a stable constraint, eliminating the displacement freedom of the welding wire in the radial direction of the guide wheel. At the same time, the detachable structure of the limiting member 7 facilitates the replacement of suitable blocking components according to the welding wire specifications, significantly improving the compatibility of the guide wheel with welding wires of different sizes and reducing the frequency of equipment maintenance.

[0055] In some embodiments of this utility model, such as Figures 1-4 As shown, a plurality of the limiting members 7 are mounted radially on the circumferential outer contour surface of the limiting block 2.

[0056] The limiting component 7 refers to a part installed around the guide wheel to physically block the welding wire. Specifically, it can be a baffle, a protrusion, or an adjustable fixing block. Its function is to form a multi-point contact constraint on the outer edge of the welding wire's travel path. The circumferential outer contour surface refers to the curved or planar area in the outer circumferential direction of the limiting block 2. Specifically, it can be formed into a regular or irregular contour through machining. Its function is to provide a mounting base for multiple limiting components 7, allowing the limiting components 7 to be distributed at different angles along the welding wire's travel direction, covering multiple contact points on the outer contour of the welding wire.

[0057] Specifically, the limiting members 7 are arranged on the outer circumferential surface of the limiting block 2, spaced apart along the circumferential direction, forming a constraint band around the path of the welding wire. When the welding wire passes through the limiting groove 5, its outer surface contacts the ends of the multiple limiting members 7, and each limiting member 7 applies a limiting force to a different side of the welding wire. For example, in the application scenario of the triangular welding wire 14, the three limiting members 7 can correspond to the three corner positions of the welding wire, and the radial installation method ensures that the limiting members 7 are in perpendicular contact with the corners, preventing the welding wire from tilting during movement. The arrangement density of the limiting members 7 can be adjusted according to the cross-sectional shape of the welding wire. For example, for asymmetrical welding wires, the number of limiting members 7 can be increased in the direction of easy torsion, forming a non-uniform distribution layout.

[0058] Compared to existing technologies, traditional guide wheels rely solely on a single limiting structure or the geometric constraints of a V-groove, failing to cover the entire contact area of ​​the welding wire's outer contour. For example, existing guide wheels lack auxiliary limiting structures at the bottom edge of the V-groove, making it easy for the welding wire to detach from the groove during high-speed movement. This invention, through the synergistic action of the multi-directional limiting components 7, forms continuous obstructions at different circumferential angles, ensuring the welding wire maintains its positional stability within the limiting groove 5 even under external tension or vibration.

[0059] Through the above technical solution, this utility model can effectively prevent lateral displacement or circumferential torsion of the welding wire due to insufficient single-point constraint. Especially in the application of triangular welding wire 14 and other irregularly shaped welding wires with similar height cross-sections, the precise positioning of the welding wire edges by multiple limiting members 7 ensures that the welding wire always moves stably along the preset path. This design also avoids the problem of groove size changes caused by flux adhesion. The mechanical blocking effect of the limiting members 7 is not affected by the surface condition inside the groove, significantly improving the long-term reliability of the guide roller.

[0060] It should be noted that "multiple" in this utility model refers to two or more, and will not be repeated here.

[0061] In some embodiments of this utility model, such as Figure 7 , Figure 8 As shown, the limiting part 4 is constructed as a groove at the position near the edge of one end face of the limiting block 2, and the limiting groove 5 is an annular channel with the groove width gradually decreasing along the radial center direction. The welding wire guide wheel 1 is provided with at least two through holes that communicate with the limiting groove 5.

[0062] The groove refers to a recessed structure machined into the edge region of the end face of the limiting block 2, which can be achieved by milling or stamping processes, and is used to form a limiting channel that matches the shape of the welding wire. The annular channel refers to a closed ring-shaped guiding space formed by the grooves of the two limiting blocks 2. Specifically, the groove cross-sectional shape can be adjusted to gradually narrow the groove width along the radial center direction to achieve self-centering clamping of the welding wire. The through hole refers to a channel that penetrates the limiting block 2 and communicates with the annular channel, which can be formed by drilling or laser cutting, and is used to discharge flux residue or inject cleaning medium.

[0063] Specifically, the two limiting blocks 2 are joined together after the spacing is controlled by the adjusting member 3, and the grooves on their edges combine to form an annular channel. When the triangular welding wire 14 is inserted into the channel, the gradually narrowing groove width forces the welding wire to automatically adjust to the center position of the channel, and the annular closed structure restricts the welding wire from twisting in the axial direction. The through holes are distributed circumferentially along the channel, and flux is discharged outward through the through holes during the delivery process to avoid accumulation in the channel and causing changes in the groove width. Cleaning medium can be injected through the through holes to flush the inner wall of the channel and maintain dimensional stability.

[0064] Compared to existing technologies, traditional V-grooves, due to their open design and lack of a cleaning channel, tend to accumulate flux within the groove, leading to poor contact between the welding wire and the groove wall. This invention employs a closed annular channel, increasing the contact area between the welding wire and the groove wall. Furthermore, the continuous discharge of flux through the through-hole ensures stable contact between the welding wire and the groove wall. The continuous, encircling structure of the annular channel, compared to the linear opening of a V-groove, effectively limits the deflection angle of the welding wire during transport.

[0065] Through the above technical solution, this utility model solves the problem of dimensional mismatch in the limiting groove 5 caused by flux residue in the welding wire. By utilizing the self-centering function of the annular channel and the cleaning effect of the through hole, the welding wire maintains a stable posture during transport, preventing it from falling off or twisting. Compared to traditional open grooves, the closed channel structure enhances the constraint on the circumferential movement of the welding wire, preventing axial displacement during high-speed transport.

[0066] In some embodiments of this utility model, the opening direction of the through hole (not shown in the figure) is tangent to the annular channel of the limiting groove 5.

[0067] The through hole refers to a channel that passes through the limiting block 2 and communicates with the limiting groove 5. Specifically, it can be implemented by a circular cross-section channel or a rectangular cross-section channel, and its axial extension direction is consistent with the tangent direction of the annular channel.

[0068] The annular channel refers to a closed guide channel formed by the combination of two limiting blocks 2. Specifically, it can be formed by the mating of concentric arc-shaped grooves, and its cross-sectional shape matches the geometric contour of the triangular welding wire 14.

[0069] Specifically, as the welding wire moves along the annular channel, when externally injected flux or cooling medium enters the channel through a tangential opening, the fluid forms a swirling flow along the circumference of the channel. This flow pattern can cover the inner wall surface of the channel, effectively stripping away deposited flux residues. At the same time, the shear force generated by the tangential flow of the fluid can reduce the frictional resistance between the welding wire surface and the channel wall, preventing the welding wire from deflecting or twisting due to sudden changes in local resistance.

[0070] Compared with existing technologies, the through holes of the conventional welding wire guide roller 1 are usually opened perpendicular to the axial direction of the channel, which causes the fluid to directly impact the surface of the welding wire and easily leads to the displacement of the welding wire position. The tangential opening design makes the fluid flow direction consistent with the trajectory of the welding wire, which not only avoids direct impact, but also forms a uniform fluid coating layer through the swirling effect.

[0071] Through the above technical solution, this utility model achieves continuous cleaning of flux residue in the limiting groove 5, effectively preventing the welding wire from getting stuck and falling off due to flux accumulation. At the same time, by optimizing the interaction between the fluid and the welding wire, the triangular welding wire 14 is kept in a stable position in the channel, ensuring that no twisting occurs during the welding process.

[0072] In some embodiments of this utility model, fasteners (not shown in the figures) are also included, such as... Figure 1 , Figure 3 As shown, the end face of the limiting block 2 is also provided with a mounting hole 11, the mounting hole 11 penetrates the limiting block 2, and the fastener passes through the mounting holes 11 of the two limiting blocks 2 to fix the two limiting blocks 2 in place.

[0073] The mounting hole 11 refers to a through hole structure provided on the end face of the limiting block 2, which can be implemented as a through hole or a threaded hole, and is used to allow the fastener to pass through the two limiting blocks 2 axially. The fastener refers to a connecting component used to apply clamping force, which can be implemented as a bolt, screw or pin, and is used to keep the mating surfaces of the two limiting blocks 2 rigidly fixed by tightening or plugging.

[0074] Specifically, the mounting hole 11 is configured as an axial channel penetrating the limiting block 2. After the two limiting blocks 2 are aligned with the mounting hole 11, the fastener passes through the channels on both sides to form an axial constraint. The clamping force generated by tightening the fastener presses the end faces of the two limiting blocks 2 tightly together, preventing the limiting blocks 2 from misaligning due to vibration or external force. At the same time, the cooperation between the mounting hole 11 and the fastener makes the disassembly and assembly of the limiting block 2 more convenient. When adjusting the size of the limiting groove 5 or replacing worn parts, the limiting block 2 can be separated simply by loosening the fastener.

[0075] Compared with existing technologies, traditional welding wire guide rollers 1 typically use an integral structure or a single adjusting component 3 to fix the limiting block 2, which can easily lead to deformation or loosening of the limiting groove 5 due to insufficient clamping force. This invention, through the combined design of the mounting hole 11 and the fastener, adds axial rigidity fixing to the adjusting component 3, ensuring that the contact surface of the limiting block 2 is always in a stable contact state, thereby preventing the welding wire from falling off due to displacement of the limiting groove 5.

[0076] Through the above technical solution, this utility model solves the problem of welding wire falling off due to the two limiting blocks 2 not being fixed firmly. The fastener and the mounting hole 11 cooperate to achieve double fixation, which significantly improves the structural stability of the limiting groove 5 and ensures that the welding wire maintains the correct posture in the guide wheel.

[0077] This utility model also proposes a welding wire anti-twist device 100, such as... Figure 9 As shown, the anti-twist device 100 for welding wire includes a bracket 12, a wire feeding reel 13, and the aforementioned wire guide rollers 1. The wire feeding reel 13 and the two wire guide rollers 1 are mounted on the bracket 12. The welding wire on the wire feeding reel 13 passes through the two wire guide rollers 1 in sequence to an external device.

[0078] The bracket 12 refers to the rigid support structure of the main body of the bearing device, which can be implemented by a welded frame or an adjustable mounting base, and is used to fix the spatial position relationship between the wire feeding wheel 13 and the guide wheel.

[0079] The wire feeding wheel 13 refers to a rotating component used to release the welding wire. Specifically, it can be implemented as a metal wheel with bearings, and the output speed of the welding wire is controlled by rotation.

[0080] Specifically, the bracket 12 serves as a basic support unit, ensuring the relative positional accuracy between the wire feeding reel 13 and the guide wheel through a rigid connection. After the welding wire is drawn from the wire feeding reel 13, it passes sequentially through the limiting grooves 5 of the two guide wheels, forming a continuous guide path. The two guide wheels each employ a combination structure of V-grooves and annular channels. The V-groove of the first guide wheel clamps the edges of the triangular welding wire 14, while the annular channel of the second guide wheel wraps around the side of the welding wire, providing double constraint to eliminate torsional torque during travel. The spacing of the limiting blocks 2 inside the guide wheels is adjusted by the adjusting element 3 to accommodate welding wires of different sizes and compensate for machining tolerances. When flux accumulates in the limiting grooves 5, the detachable structure allows for quick separation of the limiting blocks 2 for cleaning, restoring the dimensional accuracy of the grooves. The integrated installation method of the bracket 12 reduces the interference of system vibration on the stability of the welding wire.

[0081] Compared to existing technologies, traditional guide wheels employ an integral V-groove structure, which cannot adjust the groove width and is difficult to clean, leading to groove size mismatch after flux accumulation. This invention achieves rapid maintenance through a detachable guide wheel structure, while the synergistic action of dual guide wheels forms a segmented constraint, more effectively suppressing wire twisting compared to a single guide structure. Furthermore, the composite structure design of the limiting groove 5 maintains the positioning capability of the triangular welding wire 14 edges while enhancing lateral limiting through annular channels, solving the problem of easy detachment in traditional V-grooves.

[0082] Through the above technical solution, this utility model can effectively prevent the triangular welding wire 14 from tipping or twisting during high-speed transmission, ensuring precise alignment between the welding wire and the battery cell. The detachable structure and spacing adjustment function of the guide wheels avoid dimensional mismatch problems caused by flux residue, extending the service life of the device. The synergistic guiding effect of the dual guide wheels improves the stability of the welding wire's travel path and reduces poor contact caused by posture deviation during welding.

[0083] In some embodiments of this utility model, such as Figure 9 As shown, the anti-twist device 100 for welding wire also includes the guide roller 15, which is mounted on the bracket 12 and located between the two welding wire guide rollers 1 and the feed roller 13. Specifically, the feed roller 13 releases the triangular welding wire 14, which is guided by the guide roller 15 to the limiting groove 5 on the welding wire guide roller 1. The limiting groove 5 of the two welding wire guide rollers 1 limits the triangular welding wire 14 to prevent it from twisting, thereby allowing the triangular welding wire 14 to enter the external equipment at a standard angle.

[0084] In other words, by setting the guide wheel 15 between the wire guide wheel 1 and the wire feeding wheel 13, the triangular welding wire 14 released by the wire feeding wheel 13 is guided, so that the triangular welding wire 14 can enter the limiting groove 5 of the wire guide wheel 1 along a specified direction and a specified trajectory. This improves the structural integrity of the wire anti-twist device 100 and also improves the stability of the trajectory movement of the triangular welding wire 14 when it is output from the wire anti-twist device 100.

[0085] In some embodiments of this utility model, the limiting grooves 5 of the two welding wire guide wheels 1 are configured as V-shaped groove structures or annular channel structures.

[0086] Specifically, the two wire guide rollers 1 can be configured with a V-groove structure. That is, the wire feeding roller 13 releases the triangular welding wire 14, which is guided by the feed roller 15 into the limiting groove 5 of the wire guide roller 1. The shape of the triangular welding wire 14 matches the shape of the limiting groove 5, allowing the triangular welding wire 14 to move along a specified trajectory on the wire guide roller 1. At the same time, the limiting groove 5 prevents the triangular welding wire 14 from twisting during movement, thus maintaining the stability of the movement. The limiting member 7 provided on the wire guide roller 1 limits the triangular welding wire 14. That is, the triangular welding wire 14 abuts against one end face of the limiting member 7, causing the triangular welding wire 14 to move along the extension trajectory of the limiting groove 5, preventing the triangular welding wire 14 from detaching from the limiting groove 5 during movement.

[0087] In other words, the triangular welding wire 14 is released from the wire feeding reel 13, guided by the guide wheel to the limiting groove 5 of the welding wire guide wheel 1, and limited by the limiting member 7, so that the triangular welding wire 14 moves in the limiting groove 5 of the welding wire guide wheel 1 until it is stopped and limited by another limiting member 7, and then extends from the limiting groove 5 to another welding wire guide wheel 1, and finally extends from the welding wire guide wheel 1 to the external equipment.

[0088] It should be noted that the limiting member 7 provided on the welding wire guide wheel 1 can be set to one, two, three or more. The number of the limiting member 7 provided on the welding wire guide wheel 1 is set according to the actual production needs, and will not be elaborated here. When multiple limiting members 7 are installed on the welding wire guide wheel 1, the angle formed between two adjacent limiting members 7 and the center of the welding wire guide wheel 1 can be set according to the movement trajectory set by the triangular welding wire 14. For example, when the triangular welding wire 14 passes the welding wire guide wheel 1, its movement direction needs to rotate clockwise by 9 degrees. 0°, meaning that two limiting members 7 can be set on the welding wire guide wheel 1 and the included angle between the two limiting members 7 and the center of the welding wire guide wheel 1 is 90°; further, by adjusting the installation position of the limiting members 7 on the welding wire guide wheel 1 according to the different movement directions of the triangular welding wire 14, the limiting members 7 are abutting against the triangular welding wire 14 when the triangular welding wire 14 enters the limiting groove 5 and extends out of the limiting groove 5, so that the triangular welding wire 14 does not leave the limiting groove 5, thereby improving the anti-torsion ability of the welding wire guide wheel 1 for the triangular welding wire 14.

[0089] In some embodiments, the limiting grooves 5 of the two wire guide rollers 1 can also be configured as an annular channel structure. That is, when the wire feeding roller 13 releases the triangular welding wire 14 through the guide roller 15 and guides it to the through hole of the wire guide roller 1, the triangular welding wire 14 passes through the through hole and enters the limiting groove 5. The shape of the triangular welding wire 14 matches the shape of the limiting groove 5, so that the triangular welding wire 14 moves along the extension direction of the limiting groove 5 within the limiting groove 5. At the same time, it prevents the triangular welding wire 14 from twisting during the movement, so that the triangular welding wire 14 remains stable during the movement until it passes through another through hole and exits the limiting groove 5, and then enters another wire guide roller 1. The two wire guide rollers 1 can change the movement direction of the triangular welding wire 14, and the limiting groove 5 prevents the triangular welding wire 14 from twisting during the movement and change of direction.

[0090] It should be noted that multiple through holes can be provided on the welding wire guide wheel 1. For example, the welding wire guide wheel 1 can be provided with 2, 3, 4 or more through holes. The provision of multiple through holes enables the triangular welding wire 14 to move in different directions on one welding wire guide wheel 1, thereby improving the applicability of the welding wire guide wheel 1.

[0091] In some embodiments of this utility model, the limiting groove 5 of one of the welding wire guide wheels 1 is configured as a V-shaped groove structure, and the limiting groove 5 of the other welding wire guide wheel 1 is configured as an annular channel structure.

[0092] Specifically, the V-groove structure uses its sidewalls to limit the vertical displacement of the welding wire, maintaining the relative position of the bottom surface of the welding wire to the contact surface of the guide wheel during transport. The annular channel structure, through the close contact between the sidewall of the groove and the side of the welding wire, prevents the welding wire from rotating around its own axis. When the welding wire passes through the two guide wheels with different structures in sequence, the V-groove guide wheel mainly inhibits the tilting and deviation of the welding wire, while the annular channel guide wheel mainly prevents the axial torsion of the welding wire. The two constraint mechanisms form a spatially orthogonal limiting relationship. When the two guide wheels work together, the open structure of the V-groove facilitates the adjustment of the welding wire position, while the closed structure of the annular channel enhances the positioning stability, jointly overcoming the functional limitations of a single groove type.

[0093] Compared with existing technologies, traditional anti-torsion devices only use a single V-groove structure. Although it can provide vertical positioning, it cannot effectively suppress the axial torsion of the welding wire, and the V-groove is easily affected by flux adhesion, which affects the positioning accuracy. This invention combines two different groove types, retaining the V-groove's advantage of facilitating welding wire positioning and adjustment, while introducing annular channels to enhance anti-torsion capabilities. Furthermore, the alternating action of the two structures allows the triangular welding wire 14 to be flipped.

[0094] Through the above technical solution, this utility model can simultaneously solve the problems of vertical tilting and axial torsion of the triangular welding wire 14 during transportation, avoiding positioning failure caused by a single guide wheel structure. The combination of two groove types can adapt to the positioning requirements of welding wires with different cross-sections. The combination design of the V-groove and the annular channel ensures both the adjustability of the welding wire position and enhances operational stability, effectively reducing the risk of welding wire falling off and reducing the frequency of maintenance caused by flux accumulation.

[0095] Furthermore, multiple welding wire guide rollers 1 can be provided, for example, 3, 4 or more, specifically according to actual production needs. The provision of multiple welding wire guide rollers 1 further improves the stability of the welding wire anti-twist device 100, thereby preventing the welding wire from twisting during movement. At the same time, multiple welding wire guide rollers 1 can flexibly change the direction of welding wire output, preventing bending when the output direction of welding wire changes, and improving the stability of the welding wire movement process.

[0096] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A welding wire guide wheel, characterized in that, include: Two limiting blocks and an adjusting component are provided. A limiting portion is formed at the edge of one end face of each limiting block. The two limiting blocks are detachably installed to form the welding wire guide wheel. The end faces of the two limiting blocks near the limiting portion are in contact with each other. The two limiting portions cooperate to form a limiting groove. The shape of the limiting groove is configured to match the shape of the welding wire. An adjusting hole is provided on one end face of each limiting block. The adjusting hole passes through the limiting block. The adjusting component is screwed into the adjusting hole to adjust the distance between the two limiting blocks.

2. The welding wire guide wheel according to claim 1, characterized in that, The limiting part is constructed on the outer contour of one end face of the limiting block, and the limiting groove is a V-shaped groove structure whose width gradually decreases along the radial center.

3. The welding wire guide wheel according to claim 2, characterized in that, It also includes a limiting member, which is installed on the outer contour of the two limiting blocks, and the welding wire passing through the limiting groove abuts against the end face of the limiting member near the limiting groove.

4. The welding wire guide wheel according to claim 3, characterized in that, Multiple limiting members are radially mounted on the circumferential outer contour surface of the limiting block.

5. The welding wire guide wheel according to claim 1, characterized in that, The limiting part is constructed as a groove at a position near the edge of one end face of the limiting block. The limiting groove is an annular channel whose width gradually decreases along the radial direction. The welding wire guide wheel is provided with at least two through holes that communicate with the limiting groove.

6. The welding wire guide wheel according to claim 5, characterized in that, The opening direction of the through hole is tangent to the annular channel of the limiting groove.

7. The welding wire guide wheel according to claim 1, characterized in that, It also includes fasteners, and the end face of the limiting block is provided with mounting holes, the mounting holes penetrating the limiting block, and the fasteners passing through the mounting holes of the two limiting blocks to fix the two limiting blocks in place.

8. A welding wire anti-twist device, characterized in that, The device includes a support, a wire feeding reel, and the welding wire guide rollers as described in claims 1 to 7. The wire feeding reel and the two welding wire guide rollers are mounted on the support, and the welding wire on the wire feeding reel passes through the two welding wire guide rollers in sequence to an external device.

9. The anti-twist device for welding wire according to claim 8, characterized in that, The limiting grooves of the two welding wire guide rollers are configured as either the V-shaped groove structure or the annular channel structure.

10. The anti-twist device for welding wire according to claim 8, characterized in that, One of the welding wire guide rollers has a limiting groove configured as the V-shaped groove structure, and the other welding wire guide roller has a limiting groove configured as the annular channel structure.

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