Steel skeleton welding wire wheel double-stroke adjusting device

Abstract

The invention relates to the technical field of welding wires, and discloses a steel skeleton welding wire wheel double-stroke adjusting device which comprises a shell body, an inlet is formed in one end of the top of the shell body, an outlet is formed in the other end of the top of the shell body, a welding wire body is arranged in the inlet and the outlet in a penetrating mode, and a mounting cover is arranged at the top of the shell body. An adjusting assembly is arranged at the top of the shell body; a buffer assembly is arranged on the inner wall of the shell body; the adjusting assembly is used for adjusting the tightness of the welding wire body; the buffer assembly is used for ensuring the stability of the welding wire body during tightness adjustment; the tightness degree of the welding wire body penetrating through the inlet and the outlet is adjusted through the adjusting assembly arranged at the top of the shell body, so that the tension requirements for the welding wire in different working states are met, and the tightness degree of the welding wire is rapidly adjusted. Compared with the prior art, rapid tightness adjustment of the welding wire body is achieved, different working condition requirements are met, and the using flexibility and efficiency of the welding wire are improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding wires, in particular to a double-stroke adjustment device for a steel skeleton welding wire wheel. Background Art

[0002] In welding equipment, welding wire is an important consumable material, and its operating state directly affects the efficiency and quality of welding. The tightness of the welding wire has an important impact on the stability of the arc during welding, the quality of weld formation, and the reliability of equipment operation. The wire feeding mechanism is commonly found in various disc welding rod welding machines, wire film vacuum evaporation machines, etc. The existing wire feeding mechanism has the technical characteristics of using a turntable to carry the wound welding rod or film material, using two meshing rollers or concave cams to clamp the wire welding rod or film material, and using the friction between the two meshing wheels to drive the welding rod or film material to continuously feed.

[0003] In the prior art, a Chinese patent document with a publication number of CN111482678A proposes a fully automatic adjustable welding wire and electrode feeding device, comprising an active wire feeding wheel, an auxiliary clamping wheel and a wire feeding base; the active wire feeding wheel is rotatably connected to the wire feeding base through a motor and a reducer; the auxiliary clamping wheel is installed in the wire feeding base through a clamping wheel support, and the welding wire moves forward under the rotation of the active wire feeding wheel and the auxiliary clamping wheel; a clamping force adjustment mechanism is installed on the wire feeding base for adjusting the distance between the auxiliary clamping wheel and the active wire feeding wheel, and the distance between the auxiliary clamping wheel and the active wire feeding wheel can be adjusted, so as to adapt It is used for welding wires of different diameters, but during use, it is still unable to adapt to the requirements of welding wire tension in different working conditions due to the lack of precise tightness adjustment structure, which can easily cause the welding wire to slip, jump or break during operation, thereby affecting the welding effect. In addition, tension fluctuations often occur during the welding wire adjustment process, and the traditional device is not equipped with an effective buffer mechanism, resulting in uneven force on the welding wire during the adjustment process, further shortening the service life of the welding wire. Therefore, the present application discloses a steel skeleton welding wire wheel double-stroke adjustment device to meet the needs of preventing the welding wire from slipping, jumping or breaking during operation. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a double-stroke adjustment device for a steel skeleton welding wire wheel, which has the advantages of quickly adjusting the tightness of the welding wire, adapting to different working conditions, and improving the flexibility and efficiency of the use of the welding wire. It solves a series of problems such as reducing slipping, jumping or breakage of the welding wire during operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a double-stroke adjustment device for a steel skeleton welding wire wheel, comprising an outer shell body, an inlet is provided at one end of the top of the outer shell body, an outlet is provided at the other end of the top of the outer shell body, a welding wire body is penetrated through the inlet and the outlet, a mounting cover is provided at the top of the outer shell body, and an adjustment component is provided at the top of the outer shell body; a buffer component is provided on the inner wall of the outer shell body; the adjustment component is used to adjust the tightness of the welding wire body; the buffer component is used to ensure the stability of the welding wire body when the tightness is adjusted.

[0006] Preferably, the adjustment assembly includes a first mounting plate arranged on the top of the shell body, a second mounting plate is arranged on one side of the first mounting plate, a driving tooth plate is arranged on one side of the first mounting plate, a movable plate is arranged on one side of the second mounting plate, a welding wire wheel body is arranged on one side of the movable plate, a first adjustment tooth plate and a second adjustment tooth plate are arranged on the other side of the movable plate, a synchronization rod is movably arranged on the second mounting plate, a driving gear is arranged on the synchronization rod, one end of the driving gear is meshed with the driving tooth plate, and the other end of the driving gear is meshed with the first adjustment tooth plate and the second adjustment tooth plate.

[0007] Preferably, the buffer assembly includes a group of rotating rods rotatably arranged on the inner wall of the shell body, multiple groups of telescopic rods are arranged on the rotating rods, a contact plate is arranged at one end of the telescopic rod, a return spring is sleeved on the telescopic rod, one end of the return spring is arranged on the rotating rod, and the other end of the return spring is arranged on the contact plate.

[0008] Preferably, a mounting groove is formed on one side of the first mounting plate, and the driving gear can move in the mounting groove.

[0009] Preferably, a mounting seat is provided on one side of the second mounting plate, a fixed seat is provided on the top of the mounting seat, a switching arm is rotatably provided on the fixed seat, a first connecting rod is rotatably connected to the switching arm, a connecting arm is rotatably connected to the first connecting rod, a second connecting rod is provided at one end of the connecting arm, and the second connecting rod is rotatably provided at one end of the synchronization rod.

[0010] Preferably, a pressing block is provided on the top of the switching arm.

[0011] Preferably, a driving roller is meshed on the driving tooth plate, and an adjusting knob is arranged on the top of the driving roller.

[0012] Preferably, the first adjusting tooth plate is arranged in parallel with the second adjusting tooth plate, the length of the first adjusting tooth plate is greater than the length of the second adjusting tooth plate, and the tooth spacing of the first adjusting tooth plate is greater than the tooth spacing of the second adjusting tooth plate.

[0013] Preferably, a limiting cylinder is arranged on the top of the mounting seat, and a synchronization rod is slidably arranged in the limiting cylinder.

[0014] Preferably, a plurality of groups of the contact plates can form a complete circle, and a plurality of groups of contact grooves are provided on the surface of the contact plates.

[0015] Compared with the prior art, the present invention provides a steel skeleton welding wire wheel double stroke adjustment device, which has the following beneficial effects: 1. The cutting device for rock wool board adjusts the tightness of the welding wire body passing through the inlet and outlet through the adjusting component arranged on the top of the shell body, so as to meet the tension requirements of the welding wire under different working conditions. The adjusting component realizes the rapid adjustment of the tightness of the welding wire through the precise mechanical transmission structure, and at the same time cooperates with the buffer component installed on the inner wall of the shell body to buffer and absorb the tension fluctuation generated during the tightness adjustment of the welding wire body, so as to ensure the smooth operation of the welding wire body during the adjustment process; the fast tightness adjustment of the welding wire body is realized through the adjusting component, which adapts to the requirements of different working conditions and improves the flexibility and efficiency of the use of the welding wire. At the same time, the buffer component effectively reduces the vibration and fluctuation during the adjustment of the welding wire, and ensures the smoothness and consistency of the operation of the welding wire body, so as to extend the life of the equipment and improve the welding quality.

[0016] 2. The cutting device for rock wool board, when it is necessary to use the welding wire body, when facing welding wire bodies of different sizes, the stroke that needs to be adjusted is also different. Therefore, when adjusting the stroke of the welding wire body, it is only necessary to turn the adjusting knob. At this time, by rotating the adjusting knob, the driving roller can be synchronously driven to rotate. When the driving roller rotates, the driving tooth plate engaged with it can be driven to move. At this time, when the driving gear is driven to rotate synchronously, when the driving gear rotates, the first adjusting tooth plate or the second adjusting tooth plate engaged with the other end thereof can be moved. The tooth spacing between the first adjusting tooth plate and the second adjusting tooth plate is different, thereby realizing a double-stroke adjustment function, which has high versatility and adaptability. When the first adjusting tooth plate or the second adjusting tooth plate moves driven by the driving gear, the height of the movable plate can be changed, and the height of the welding wire wheel body can be driven to change. At this time, the tightness of the welding wire body can be adjusted, thereby improving the efficiency and accuracy of the welding equipment under different working conditions.

[0017] 3. The cutting device for the rock wool board is adjusted by a switching arm arranged on the fixed seat. The switching arm rotates around the fixed seat under the action of the pressing block, driving the first connecting rod, the connecting arm and the second connecting rod thereon to move synchronously. The second connecting rod is connected to the synchronization rod by rotation, so that the synchronization rod slides in the limit cylinder, thereby adjusting the position of the synchronization rod, and then realizing the switching control of the double-stroke adjustment device of the welding wire wheel to meet the adjustment requirements under different welding conditions; it is easy to operate and flexible to switch. The sliding structure of the limit cylinder effectively constrains the movement trajectory of the synchronization rod, enhances the stability and reliability of the system operation, can quickly complete the switching of the stroke mode, adapts to different welding conditions, and improves the welding efficiency and adjustment accuracy.

[0018] 4. The cutting device for rock wool board, when the welding wire body passes through, one end of the telescopic rod contacts the welding wire body, driving the contact plate to move, and the movement of the contact plate compresses the reset spring on the telescopic rod, causing it to generate elastic restoring force, thereby buffering the tension fluctuation of the welding wire. The multiple groups of contact grooves opened on the surface of the contact plate can enhance the support force for the welding wire and reduce sliding friction, thereby ensuring the stability of the welding wire during adjustment; through the elastic recovery characteristics of the reset spring, effective buffering is achieved during the tension adjustment process of the welding wire body, which helps to reduce vibration and fluctuation of the welding wire body during operation and improve the running stability. A complete circular design can be formed between the contact plates, which can fully support the welding wire and enhance the uniformity and stability of the adjustment. At the same time, the contact groove design reduces friction and avoids wear on the surface of the welding wire, thereby extending the service life of the welding wire and improving the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the housing body of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the adjustment component of the present invention; Figure 4 It is a partially cutaway three-dimensional structural schematic diagram of the second mounting plate of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the movable plate of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the driving gear plate of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the synchronization rod of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the switching arm of the present invention; Fig. 9 This is a schematic diagram of the three-dimensional structure of the first mounting plate of the present invention; Fig.10 It is a schematic diagram of the three-dimensional structure of the buffer assembly of the present invention.

[0020] In the figure: 1. shell body; 2. inlet; 3. outlet; 4. welding wire body; 5. mounting cover; 6. first mounting plate; 7. second mounting plate; 8. driving roller; 9. adjusting knob; 10. driving gear plate; 11. moving plate; 12. first adjusting gear plate; 13. second adjusting gear plate; 14. welding wire wheel body; 15. synchronization rod; 16. driving gear; 17. mounting seat; 18. fixing seat; 19. switching arm; 20. first connecting rod; 21. connecting arm; 22. second connecting rod; 23. limiting cylinder; 24. rotating rod; 25. telescopic rod; 26. reset spring; 27. contact plate; 28. contact groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a double-stroke adjustment device for a steel skeleton welding wire wheel.

[0023] In a typical implementation of the present application, Figure 1-Figure 10 As shown, a steel skeleton welding wire wheel double stroke adjustment device comprises a shell body 1, an inlet 2 is arranged at one end of the top of the shell body 1, an outlet 3 is arranged at the other end of the top of the shell body 1, a welding wire body 4 is arranged through the inlet 2 and the outlet 3, a mounting cover 5 is arranged at the top of the shell body 1, and an adjustment component is arranged at the top of the shell body 1; a buffer component is arranged on the inner wall of the shell body 1; the adjustment component is used to adjust the tightness of the welding wire body 4; the buffer component is used to ensure the stability of the welding wire body 4 when the tightness is adjusted; By means of an adjusting component arranged on the top of the shell body 1, the tightness of the welding wire body 4 passing through the inlet 2 and the outlet 3 is adjusted, so as to meet the tension requirements of the welding wire under different working conditions. The adjusting component realizes rapid adjustment of the tightness of the welding wire through a precise mechanical transmission structure, and at the same time cooperates with a buffer component installed on the inner wall of the shell body 1 to buffer and absorb the tension fluctuation generated during the tightness adjustment of the welding wire body 4, thereby ensuring the smooth operation of the welding wire body 4 during the adjustment process; the fast tightness adjustment of the welding wire body 4 is realized through the adjusting component to adapt to different working conditions and improve the flexibility and efficiency of the use of the welding wire. At the same time, the buffer component effectively reduces the vibration and fluctuation during the adjustment of the welding wire, and ensures the smoothness and consistency of the operation of the welding wire body 4, thereby extending the life of the equipment and improving the welding quality.

[0024] As a preferred implementation in this embodiment, refer to the attached Figure 1-Figure 6 The adjustment component includes a first mounting plate 6 arranged on the top of the shell body 1, a second mounting plate 7 is arranged on one side of the first mounting plate 6, a driving tooth plate 10 is arranged on one side of the first mounting plate 6, a driving roller 8 is meshed on the driving tooth plate 10, and an adjustment knob 9 is arranged on the top of the driving roller 8; a moving plate 11 is arranged on one side of the second mounting plate 7, a welding wire wheel body 14 is arranged on one side of the moving plate 11, and a first adjusting tooth plate 12 and a second adjusting tooth plate 13 are arranged on the other side of the moving plate 11, the first adjusting tooth plate 12 is arranged in parallel with the second adjusting tooth plate 13, and the first adjusting tooth plate 12 is arranged in parallel with the second adjusting tooth plate 13. The length is greater than that of the second adjusting tooth plate 13, and the tooth spacing of the first adjusting tooth plate 12 is greater than the tooth spacing of the second adjusting tooth plate 13; a synchronization rod 15 is movably provided on the second mounting plate 7, and a driving gear 16 is provided on the synchronization rod 15, one end of the driving gear 16 is meshed with the driving tooth plate 10, and the other end of the driving gear 16 is meshed with the first adjusting tooth plate 12 and the second adjusting tooth plate 13; the other end of the driving gear 16 can mesh with the first adjusting tooth plate 12 and the second adjusting tooth plate 13 at the same time; a mounting groove is provided on one side of the first mounting plate 6, and the driving gear 16 can move in the mounting groove; When the welding wire body 4 is needed, when facing welding wire bodies 4 of different sizes, the stroke that needs to be adjusted is also different. Therefore, when adjusting the stroke of the welding wire body 4, it is only necessary to rotate the adjusting knob 9. At this time, by rotating the adjusting knob 9, the driving roller 8 can be synchronously driven to rotate. When the driving roller 8 rotates, the driving tooth plate 10 engaged therewith can be driven to move. At this time, when the driving gear 16 is driven to rotate synchronously, when the driving gear 16 rotates, the first adjusting tooth plate 12 or the second adjusting tooth plate 13 engaged therewith at the other end can be moved. The tooth spacing between the first adjusting tooth plate 12 and the second adjusting tooth plate 13 is different, thereby realizing a dual-stroke adjustment function, which has high versatility and adaptability. When the first adjusting tooth plate 12 or the second adjusting tooth plate 13 moves driven by the driving gear 16, the height of the movable plate 11 can be changed, and the height of the welding wire wheel body 14 can be driven to change. At this time, the tightness of the welding wire body 4 can be adjusted, thereby improving the efficiency and accuracy of the welding equipment under different working conditions.

[0025] As a preferred implementation in this embodiment, refer to the attached Figure 3-Figure 9A mounting seat 17 is provided on one side of the second mounting plate 7, a fixing seat 18 is provided on the top of the mounting seat 17, a switching arm 19 is rotatably provided on the fixing seat 18, and a pressing block is provided on the top of the switching arm 19; a first connecting rod 20 is rotatably connected to the switching arm 19, a connecting arm 21 is rotatably connected to the first connecting rod 20, a second connecting rod 22 is provided at one end of the connecting arm 21, and the second connecting rod 22 is rotatably provided at one end of the synchronization rod 15; a limiting cylinder 23 is provided on the top of the mounting seat 17, and the synchronization rod 15 is slidably provided in the limiting cylinder 23; The adjustment is performed through a switching arm 19 arranged on the fixed seat 18. The switching arm 19 rotates around the fixed seat 18 under the action of the pressing block, driving the first connecting rod 20, the connecting arm 21 and the second connecting rod 22 thereon to move synchronously. The second connecting rod 22 is connected to the synchronization rod 15 by rotation, so that the synchronization rod 15 slides in the limiting cylinder 23, thereby adjusting the position of the synchronization rod 15, and then realizing the switching control of the double-stroke adjustment device of the welding wire wheel to meet the adjustment requirements under different welding conditions; the operation is simple and the switching is flexible. The sliding structure of the limiting cylinder 23 effectively constrains the movement trajectory of the synchronization rod 15, enhances the stability and reliability of the system operation, can quickly complete the switching of the stroke mode, adapts to different welding conditions, and improves the welding efficiency and adjustment accuracy.

[0026] As a preferred implementation in this embodiment, refer to the attached Figure 1 , Figure 2 and Fig.10 The buffer assembly includes a group of rotating rods 24 rotatably arranged on the inner wall of the housing body 1, a plurality of telescopic rods 25 are arranged on the rotating rod 24, a contact plate 27 is arranged at one end of the telescopic rod 25, a return spring 26 is sleeved on the telescopic rod 25, one end of the return spring 26 is arranged on the rotating rod 24, and the other end of the return spring 26 is arranged on the contact plate 27; a complete circle can be formed between the plurality of contact plates 27, and a plurality of contact grooves 28 are arranged on the surface of the contact plate 27; When the welding wire body 4 passes through, one end of the telescopic rod 25 contacts the welding wire body 4, driving the contact plate 27 to move. The movement of the contact plate 27 compresses the reset spring 26 on the telescopic rod 25, causing it to generate an elastic restoring force, thereby buffering the tension fluctuation of the welding wire. The multiple groups of contact grooves 28 opened on the surface of the contact plate 27 can enhance the supporting force for the welding wire and reduce sliding friction, thereby ensuring the stability of the welding wire during adjustment; through the elastic recovery characteristics of the reset spring 26, effective buffering is achieved during the tension adjustment process of the welding wire body 4, which helps to reduce the vibration and fluctuation of the welding wire body 4 during operation and improve the running stability. A complete circular design can be formed between the contact plates 27, which can fully support the welding wire and enhance the uniformity and stability of the adjustment. At the same time, the contact groove 28 design reduces friction and avoids wear on the surface of the welding wire, thereby extending the service life of the welding wire and improving the welding quality.

[0027] Working principle of the present invention: during use, when the welding wire body 4 is needed, when facing welding wire bodies 4 of different sizes, the strokes that need to be adjusted are also different. Therefore, when adjusting the stroke of the welding wire body 4, it is only necessary to rotate the adjusting knob 9. At this time, by rotating the adjusting knob 9, the driving roller 8 can be synchronously driven to rotate. When the driving roller 8 rotates, the driving tooth plate 10 meshed with it can be driven to move. At this time, when the driving gear 16 is driven to rotate synchronously, when the driving gear 16 rotates, the first adjusting tooth plate 12 or the second adjusting tooth plate 13 meshed with the other end thereof can be moved. The tooth spacings of the first adjusting tooth plate 12 and the second adjusting tooth plate 13 are different, thereby achieving The invention has a double-stroke adjustment function, and has high versatility and adaptability. When the first adjustment tooth plate 12 or the second adjustment tooth plate 13 moves under the drive of the driving gear 16, the height of the movable plate 11 can be changed, and the height of the welding wire wheel body 14 can be driven to change. At this time, the tightness of the welding wire body 4 can be adjusted, and the efficiency and accuracy of the welding equipment under different working conditions are improved; the adjustment is performed by the switching arm 19 arranged on the fixed seat 18. The switching arm 19 rotates around the fixed seat 18 under the action of the pressing block, driving the first connecting rod 20, the connecting arm 21 and the second connecting rod 22 thereon to move synchronously, and the second connecting rod 22 rotates with the synchronous rod 1 5, so that the synchronization rod 15 slides in the limiting cylinder 23, thereby adjusting the position of the synchronization rod 15, and then realizing the switching control of the double-stroke adjustment device of the welding wire wheel, meeting the adjustment requirements under different welding conditions; the operation is simple and the switching is flexible. The sliding structure of the limiting cylinder 23 effectively constrains the movement trajectory of the synchronization rod 15, enhances the stability and reliability of the system operation, can quickly complete the switching of the stroke mode, adapts to different welding conditions, and improves the welding efficiency and adjustment accuracy; when the welding wire body 4 passes through, one end of the telescopic rod 25 contacts the welding wire body 4, driving the contact plate 27 to move, and the movement of the contact plate 27 compresses the reset spring 26 on the telescopic rod 25, so that it produces The elastic restoring force can buffer the tension fluctuation of the welding wire. The multiple groups of contact grooves 28 opened on the surface of the contact plate 27 can enhance the supporting force of the welding wire and reduce sliding friction, thereby ensuring the stability of the welding wire during adjustment. The elastic recovery characteristics of the reset spring 26 can achieve effective buffering during the tension adjustment process of the welding wire body 4, which helps to reduce the vibration and fluctuation of the welding wire body 4 during operation and improve the running stability. A complete circular design can be formed between the contact plates 27, which can fully support the welding wire and enhance the uniformity and stability of the adjustment. At the same time, the contact groove 28 is designed to reduce friction and avoid wear on the surface of the welding wire, thereby extending the service life of the welding wire and improving the welding quality.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-stroke adjustment device for a steel frame welding wire wheel, comprising a housing body (1), characterized in that: An inlet (2) is provided at one end of the top of the shell body (1), an outlet (3) is provided at the other end of the top of the shell body (1), a welding wire body (4) is provided through the inlet (2) and the outlet (3), a mounting cover (5) is provided at the top of the shell body (1), and an adjustment component is provided at the top of the shell body (1); a buffer component is provided on the inner wall of the shell body (1); the adjustment component is used to adjust the tightness of the welding wire body (4); and the buffer component is used to ensure the stability of the welding wire body (4) when the tightness is adjusted.

2. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 1, characterized in that: The adjustment assembly comprises a first mounting plate (6) arranged on the top of the housing body (1), a second mounting plate (7) being arranged on one side of the first mounting plate (6), a driving tooth plate (10) being arranged on one side of the first mounting plate (6), a moving plate (11) being arranged on one side of the second mounting plate (7), a welding wire wheel body (14) being arranged on one side of the moving plate (11), a first adjustment tooth plate (12) and a second adjustment tooth plate (13) being arranged on the other side of the moving plate (11), a synchronization rod (15) being movably arranged on the second mounting plate (7), a driving gear (16) being arranged on the synchronization rod (15), one end of the driving gear (16) being meshed with the driving tooth plate (10), and the other end of the driving gear (16) being meshed with the first adjustment tooth plate (12) and the second adjustment tooth plate (13).

3. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 2, characterized in that: The buffer assembly comprises a group of rotating rods (24) rotatably arranged on the inner wall of the housing body (1), a plurality of groups of telescopic rods (25) are arranged on the rotating rods (24), a contact plate (27) is arranged at one end of the telescopic rods (25), a return spring (26) is sleeved on the telescopic rods (25), one end of the return spring (26) is arranged on the rotating rods (24), and the other end of the return spring (26) is arranged on the contact plate (27).

4. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 3, characterized in that: A mounting groove is provided on one side of the first mounting plate (6), and the driving gear (16) is movable in the mounting groove.

5. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 4, characterized in that: A mounting seat (17) is provided on one side of the second mounting plate (7), a fixing seat (18) is provided on the top of the mounting seat (17), a switching arm (19) is rotatably provided on the fixing seat (18), a first connecting rod (20) is rotatably connected to the switching arm (19), a connecting arm (21) is rotatably connected to the first connecting rod (20), a second connecting rod (22) is provided at one end of the connecting arm (21), and the second connecting rod (22) is rotatably provided on one end of the synchronization rod (15).

6. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 5, characterized in that: A pressing block is provided on the top of the switching arm (19).

7. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 2, characterized in that: A driving roller (8) is meshed with the driving toothed plate (10), and an adjusting knob (9) is provided on the top of the driving roller (8).

8. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 7, characterized in that: The first adjusting tooth plate (12) and the second adjusting tooth plate (13) are arranged in parallel, the length of the first adjusting tooth plate (12) is greater than the length of the second adjusting tooth plate (13), and the tooth spacing of the first adjusting tooth plate (12) is greater than the tooth spacing of the second adjusting tooth plate (13).

9. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 5, characterized in that: A limiting cylinder (23) is arranged on the top of the mounting seat (17), and a synchronization rod (15) is slidably arranged inside the limiting cylinder (23).

10. A double-stroke adjustment device for a steel skeleton welding wire wheel according to claim 3, characterized in that: A complete circle can be formed between the multiple groups of contact plates (27), and multiple groups of contact grooves (28) are provided on the surface of the contact plates (27).

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