Reinforcing mesh welding device

By designing a steel mesh welding device that allows the upper and lower electrode groups to form a welding circuit, the problems of high manual labor intensity, low efficiency, and poor versatility in existing technologies have been solved, achieving efficient and low-cost steel mesh welding.

CN224587172UActive Publication Date: 2026-08-04TJK MACHINERY (TIANJIN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TJK MACHINERY (TIANJIN) CO LTD
Filing Date
2025-08-13
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing steel mesh welding equipment suffers from problems such as high manual labor intensity, low forming efficiency, and poor equipment versatility, especially when welding steel mesh sheets of different sizes.

Method used

A steel mesh welding device was designed, including a lower electrode group and an upper electrode group. The movable upper electrode group and the lower electrode group form a welding circuit, which can adapt to steel mesh of different sizes and improve welding efficiency and versatility.

Benefits of technology

This technology improves welding efficiency and versatility in the welding of steel mesh of different sizes, reduces equipment costs and current consumption, and enhances welding quality and stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of steel mesh technology and discloses a steel mesh welding device, which includes a lower electrode group and an upper electrode group. The lower electrode group includes a plurality of first lower electrodes and a plurality of second lower electrodes, which are spaced apart along a first direction. The first lower electrodes and second lower electrodes are spaced apart along a second direction. The first lower electrodes or second lower electrodes are placed in a mounting position to mount transverse reinforcement. The upper electrode group is movable above the lower electrode group along the first direction. The upper electrode group includes a first upper electrode and a second upper electrode spaced apart along the second direction. The first upper electrode and the second upper electrode are connected by a wire and can move up and down along a third direction. The first direction, the second direction, and the third direction are perpendicular to each other. The moving upper electrode group can weld the intersection of transverse reinforcement and different longitudinal reinforcements. It can be used for steel mesh of different sizes, improving versatility and welding efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of steel mesh technology, and in particular to a steel mesh welding device. Background Technology

[0002] Reinforcing mesh is a mesh sheet with multiple identical grid sizes formed by welding together multiple transverse bars and multiple longitudinal bars;

[0003] One existing method for forming steel mesh is manual welding, which results in high labor intensity and low forming efficiency due to the large number of weld points. Another method uses welding machinery, where horizontal and vertical ribs are placed in their corresponding positions and pressed down, and the mesh is formed by resistance welding. However, due to the large number of longitudinal and horizontal ribs, the number of weld points is also relatively large, and the number of electrodes required for welding equipment varies. Furthermore, the location of the weld points is not the same for steel mesh of different sizes, resulting in poor versatility of existing welding machinery when welding meshes with different requirements. Utility Model Content

[0004] The purpose of this invention is to provide a steel mesh welding device that improves versatility, allows for welding of steel meshes of different sizes, and increases welding efficiency.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A steel mesh welding device, comprising:

[0007] The lower electrode group includes a plurality of first lower electrodes and a plurality of second lower electrodes. The plurality of first lower electrodes and the plurality of second lower electrodes are distributed at intervals along a first direction. The first lower electrodes and the second lower electrodes are arranged at intervals along a second direction. The first lower electrodes or the second lower electrodes are provided with mounting positions to accommodate transverse ribs.

[0008] An upper electrode group is movable and disposed above the lower electrode group along the first direction. The upper electrode group includes a first upper electrode and a second upper electrode spaced apart along the second direction. The first upper electrode and the second upper electrode are connected by a wire and can be raised and lowered along the third direction to form a welding circuit with the first lower electrode, the second lower electrode, the first upper electrode, and the second upper electrode.

[0009] The first direction, the second direction, and the third direction are perpendicular to each other.

[0010] In some embodiments, the mounting position is a groove disposed on the upper end face of the first lower electrode or the upper end face of the second lower electrode, wherein the height of one of the first lower electrode and the second lower electrode on which the mounting position is disposed is higher than that of the other, and the groove extends through the first direction.

[0011] In some embodiments, the inner wall of the groove is configured as an inclined surface so that the transverse rib can be moved out of the groove when it moves in the second direction.

[0012] In some embodiments, the lower electrode assembly includes a welding transformer connected to two electrode connection plates opposite each other along the second direction, and a plurality of first lower electrodes and a plurality of second lower electrodes are respectively disposed on the two electrode connection plates.

[0013] In some embodiments, the upper electrode group includes a first translational drive and two lifting drives. The first translational drive drives the two lifting drives to move along the first direction. The first upper electrode and the second upper electrode are respectively disposed at the output ends of the two lifting drives. The lifting drives drive the first upper electrode and the second upper electrode to move up and down along the third direction.

[0014] In some embodiments, the first upper electrode and the second upper electrode within the same upper electrode group are offset in the first direction.

[0015] In some embodiments, the steel mesh welding apparatus further includes an alignment component disposed at one end of the lower electrode assembly along the first direction, so as to align the ends of the transverse reinforcement placed at the placement position.

[0016] In some embodiments, the alignment component includes a second translational driver and a rotational driver. The output end of the rotational driver is provided with an alignment plate. The second translational driver drives the rotational driver to translate along the first direction, and the rotational driver drives the alignment plate to rotate.

[0017] In some embodiments, the steel mesh welding device further includes a support component disposed at one end of the lower electrode group along the second direction, so as to support the welded transverse and longitudinal bars.

[0018] In some embodiments, the support assembly includes a support drive member, the output end of which is provided with a support frame, and the support drive member drives the support frame to move up and down along the third direction.

[0019] The beneficial effects of this utility model are:

[0020] During the welding of the reinforcing mesh, the transverse bars are placed along the first direction at the positions of the first or second lower electrode. Then, several longitudinal bars are placed at intervals along the first direction on the transverse bars. The upper electrode group then moves to the intersection of the transverse bar and one of the longitudinal bars. The first and second upper electrodes descend, so that one of the first or second upper electrodes abuts against the transverse bar and longitudinal bar at the placement position. A resistance welding circuit is formed through the other of the first or second upper electrodes and then through the first or second lower electrode, welding the adjacent transverse bars and longitudinal bars together. Then, the upper electrode group is moved again to weld the intersection of the transverse bar and the next longitudinal bar. The above device can weld the intersection of the transverse bar and different longitudinal bars by moving the upper electrode group, and can be used for reinforcing meshes of different sizes, improving versatility and welding efficiency. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the steel mesh welding device of this utility model;

[0022] Figure 2 This is a front view of the steel mesh welding device of this utility model;

[0023] Figure 3 This is a schematic diagram of the lower electrode assembly in this utility model;

[0024] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the upper electrode assembly in this utility model;

[0026] Figure 6 This is a schematic diagram of the alignment component in this utility model;

[0027] Figure 7 This is a schematic diagram of the support component in this utility model;

[0028] Figure 8 This is a side view of the support component in this utility model.

[0029] In the picture:

[0030] 1. Welding frame;

[0031] 2. Lower electrode assembly; 21. First lower electrode; 22. Second lower electrode; 23. Mounting position; 24. Welding transformer; 25. Electrode connecting plate; 26. Insulating plate;

[0032] 3. Upper electrode assembly; 31. First upper electrode; 32. Second upper electrode; 33. Wire; 34. First translation drive; 35. Lifting drive; 36. Welding rail; 37. Welding rack; 38. Welding seat; 39. Welding slider; 310. Welding gear; 311. Insulating pad;

[0033] 4. Alignment assembly; 41. Second translation drive; 42. Rotation drive; 43. Alignment plate; 44. Alignment frame; 45. Alignment gear; 46. Alignment rail; 47. Alignment rack; 48. Alignment slider;

[0034] 5. Supporting components; 51. Supporting drive components; 52. Support frame; 521. Supporting crossbeam; 522. Material support rod; 53. Supporting connecting rod; 54. Connecting rod support; 55. Top material connecting rod. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0036] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical 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 based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0039] like Figures 1 to 8 As shown, this application provides a steel mesh welding device for welding steel mesh formed by interlacing transverse and longitudinal bars. The steel mesh welding device includes a lower electrode group 2 and an upper electrode group 3. The lower electrode group 2 includes a plurality of first lower electrodes 21 and a plurality of second lower electrodes 22, which are spaced apart along a first direction. The first lower electrodes 21 and the second lower electrodes 22 are spaced apart along a second direction. Each of the first lower electrodes 21 or the second lower electrodes 22 has a mounting position 23 to accommodate transverse bars. The upper electrode group 3 is movable above the lower electrode group 2 along the first direction. The upper electrode group 3 includes a first upper electrode 31 and a second upper electrode 32 spaced apart along the second direction. The first upper electrode 31 and the second upper electrode 32 are connected by a wire 33 and can move up and down along a third direction to form a welding circuit with the first lower electrode 21, the second lower electrode 22, the first upper electrode 31, and the second upper electrode 32. The first direction, the second direction, and the third direction are perpendicular to each other. The first direction is... Figure 1 The X direction in the middle, the second direction is Figure 1 The Y direction is shown in the figure, and the third direction is shown in the Z direction.

[0040] During the welding of the reinforcing mesh, the transverse bars are placed along the first direction at the placement position 23 of the first lower electrode 21 or the second lower electrode 22. Then, several longitudinal bars are placed at intervals on the transverse bars along the first direction. Subsequently, the upper electrode group 3 moves to the intersection of the transverse bar and one of the longitudinal bars. The first upper electrode 31 and the second upper electrode 32 descend, so that one of the first upper electrode 31 or the second upper electrode 32 presses against the transverse bar and the longitudinal bar at the placement position 23. The resistance welding circuit is formed through the other of the first upper electrode 31 or the second upper electrode 32 and then through the first lower electrode 21 or the second lower electrode 22, welding the adjacent transverse bars and longitudinal bars together. Then, the upper electrode group 3 is moved again to weld the intersection of the transverse bar and the next longitudinal bar. This allows the upper electrode group 3 to weld the intersection of the transverse bar and different longitudinal bars, making it suitable for reinforcing meshes of different sizes, improving versatility and welding efficiency.

[0041] like Figure 1 and Figure 2As shown, in some embodiments, the steel mesh welding device includes a welding frame 1, which serves as the mounting base. The lower electrode assembly 2 is fixed on the welding frame 1, and the upper electrode assembly 3 is movable on the welding frame 1.

[0042] like Figure 3 As shown, specifically, the lower electrode group 2 includes a welding transformer 24, which is connected to two electrode connecting plates 25 arranged opposite each other along the second direction. An insulating plate 26 is provided on the lower end face of the electrode connecting plate 25. The electrode connecting plate 25 is connected and fixed to the welding frame 1 through the insulating plate 26. A number of first lower electrodes 21 and a number of second lower electrodes 22 are respectively arranged on the two electrode connecting plates 25. The first lower electrodes 21 and the second lower electrodes 22 can be connected by a welding transformer 24, thereby saving the number of welding transformers 24 used and reducing costs.

[0043] In some embodiments, the mounting position 23 is a groove disposed on the upper end face of the first lower electrode 21 or the upper end face of the second lower electrode 22, and the height of one of the first lower electrode 21 and the second lower electrode 22 where the mounting position 23 is disposed is higher than the other; that is, the mounting position 23 is disposed on the one with the higher upper end face of the first lower electrode 21 and the second lower electrode 22 to avoid interference. In the current embodiment, the height of the upper end face of the second lower electrode 22 is higher than the height of the upper end face of the first lower electrode 21, and the groove is disposed on the second lower electrode 22. The groove penetrates the second lower electrode 22 along the first direction, thereby enabling the horizontal rib to be placed in the groove along the first direction, so that the horizontal rib can be easily supported; and it is not easy for it to shift or move during welding, thus improving the welding quality. Furthermore, after welding is completed, the inner sidewall of the groove is set as an inclined surface to facilitate the quick removal of the horizontal rib from the second lower electrode 22, so that the horizontal rib can be moved out of the groove when it moves along the second direction. In the current embodiment, the two inclined surfaces gradually approach each other from the groove opening towards the groove bottom. Therefore, when the transverse rib moves from the groove bottom along the second direction, it can slide out of the groove along the inclined surfaces, facilitating the entry and exit of the transverse rib. In some embodiments, to further improve welding efficiency, multiple upper electrode groups 3 can be provided.

[0044] In some embodiments, the first upper electrode 31 and the second upper electrode 32 within the same upper electrode group 3 are offset in the first direction; while the first lower electrode 21 and the second lower electrode 22 can be offset in the first direction, or multiple second lower electrodes 22 can correspond to one first lower electrode 21, so that the intersection of the horizontal rib and the vertical rib falls in the groove of the second lower electrode 22, the second upper electrode 32 and the second lower electrode 22 together clamp the horizontal rib and the vertical rib, while the first lower electrode 21 and the first upper electrode 31 directly contact to form a circuit, so that the first upper electrode 31 is pressed down to avoid the position of the vertical rib; during welding, only the second upper electrode 32 and the second lower electrode 22 contact the horizontal rib and the vertical rib, and the first lower electrode 21 and the first upper electrode 31 directly contact, so that the current passes through the horizontal rib and the vertical rib as little as possible, thereby minimizing current loss and saving costs.

[0045] like Figure 2 and Figure 6 As shown, to further improve welding quality and ensure that the ends of the transverse reinforcement bars are flush when placed, in some embodiments, the steel mesh welding device further includes an alignment component 4. The alignment component 4 is disposed at one end of the lower electrode group 2 along the first direction, so as to abut and limit the ends of the transverse reinforcement bars placed in the placement position 23 by means of the alignment component 4. In the current embodiment, two sets of alignment components 4 are provided so as to abut the two ends of the transverse reinforcement bars. Specifically, the alignment assembly 4 includes an alignment frame 44, on which a second translational drive 41 is provided. An alignment gear 45 is provided at the output end of the second translational drive 41. An alignment rack 47 and an alignment rail 46 extending along a first direction are provided on the welding frame 1. The alignment gear 45 meshes with the alignment rack 47. An alignment slider 48 is provided on the alignment frame 44 and slides on the alignment rail 46. An alignment plate 43 is also provided on the alignment frame 44. The second translational drive 41 drives the alignment plate 43 to translate in the first direction, thereby abutting the ends of the transverse ribs and ensuring that each transverse rib placed in the groove is in the same position, thus ensuring welding quality. To ensure that the alignment plate 43 adapts to different transverse ribs, a rotational drive 42 is provided on the alignment frame 44. The alignment plate 43 is located at the output end of the rotational drive 42, causing the rotational drive 42 to drive the alignment plate 43 to rotate, adjusting the abutting angle of the alignment plate 43. In the current embodiment, the second translation drive 41 may be, but is not limited to, a motor, and the rotation drive 42 may be, but is not limited to, a rotary cylinder or a rotary electric cylinder. It should be noted that since the transverse ribs are generally fed using an external transverse rib support component, the alignment operation can be performed on the transverse rib support component, and the transverse rib can be placed in the groove after alignment. Alternatively, the transverse rib can be placed in the groove first, and then the alignment operation can be performed. The specific steps can be adjusted according to the specific situation and are not limited.

[0046] like Figure 2 and Figure 5As shown, in some embodiments, the welding frame 1 is provided with a welding rail 36 and a welding rack 37, which extend along a first direction. The upper electrode assembly 3 includes a welding seat 38, on which a welding slider 39 and a first translational drive 34 are provided. The welding slider 39 slides on the welding rail 36. The output end of the first translational drive 34 is provided with a welding gear 310, which meshes with the welding rack 37. Thus, the first translational drive 34 drives the welding seat 38 to move along the welding rail 36. The welding seat 38 is provided with two lifting drive members 35. An insulating pad 311 is provided at the output end. Both the first upper electrode 31 and the second upper electrode 32 are disposed on the insulating pad 311, allowing the first upper electrode 31 and the second upper electrode 32 to be driven to rise and fall by the lifting drive 35. In the current embodiment, the first upper electrode 31 corresponds to the first lower electrode 21, and the second upper electrode 32 corresponds to the second lower electrode 22. Since the first upper electrode 31 and the second upper electrode 32 are connected by a wire 33, a circuit is formed when the first upper electrode 31 contacts the first lower electrode 21 and the second upper electrode 32 contacts the transverse rib located on the second lower electrode 22, enabling welding of the transverse and longitudinal ribs at the connection point. Exemplarily, the first translation drive 34 may be, but is not limited to, a motor; the lifting drive 35 may be, but is not limited to, a cylinder or an electric cylinder.

[0047] It should be noted that after each welding of the transverse and longitudinal reinforcing bars (forming a semi-finished steel mesh), the welded semi-finished steel mesh needs to be moved along the second direction to move the transverse reinforcing bars out of the groove, thereby placing the next transverse reinforcing bar into the groove. In the current embodiment, the feeding along the second direction can be done using existing feeding devices or manually, without specific limitations. To ensure feeding stability, in some embodiments, the steel mesh welding device further includes a support component 5, which is disposed at one end of the lower electrode group 2 along the second direction to support the semi-finished steel mesh, thereby providing support during feeding and ensuring stability.

[0048] like Figure 1 , Figure 7 and Figure 8As shown, specifically, the support component 5 includes a support drive component 51, which is mounted on the welding frame 1. The output end of the support drive component 51 is provided with a support frame 52, so that the support drive component 51 drives the support frame 52 to rise and fall along a third direction, which can support during feeding. When lifting the semi-finished steel mesh, the horizontal bars can also be placed during the lifting process, minimizing the interference between the horizontal bars and the longitudinal bars. To further enhance the stability of the support, the support assembly 5 also includes a support link 53, a link support 54, and a top material link 55. One end of the support link 53 is connected to the output end of the support drive component 51, and the other end of the support link 53 is connected to the support frame 52. The welding frame 1 is provided with a link support 54. One end of the top material link 55 is connected to the support link 53, and the other end is connected to the link support 54. This allows the top material link 55 to provide auxiliary support when the support drive component 51 drives the support frame 52 to rise and fall, reducing the pressure on the support drive component 51. This allows for the selection of a relatively smaller support drive component 51, thereby saving costs.

[0049] In the current embodiment, the support frame 52 includes a support beam 521 connected to the end of the top material connecting rod 55. The support beam 521 is provided with spaced material-supporting rods 522 to support the semi-finished steel mesh. In the current embodiment, the material-supporting rod 522 includes a first rod and a second rod. The first rod extends along a second direction, and the first end of the second rod is connected to the end of the first rod. The second rod is closer to the groove than the first rod, and the height of the second end of the second rod is lower than the height of the first end, thus making the second rod inclined. This facilitates the smooth movement of the semi-finished steel mesh from the groove direction onto the support frame 52.

[0050] The welding steps are briefly described below:

[0051] The transverse rib is placed in the groove and moved to the predetermined position by the alignment component 4. The alignment component 4 is then reset. After the longitudinal rib is fed to the designated position, the upper electrode group 3 moves to the intersection of the transverse and longitudinal ribs. The first upper electrode 31 and the first lower electrode 21 descend to weld. The movement and welding of the upper electrode group 3 are then repeated until the current transverse rib is welded. The longitudinal rib is then fed in to disengage the transverse rib from the groove. The semi-finished steel mesh is moved to the support component 5 for support. The next transverse rib is then fed in and the cycle continues until all welding is completed.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A reinforcing mesh welding apparatus characterised in that, include: The lower electrode group (2) includes a plurality of first lower electrodes (21) and a plurality of second lower electrodes (22). The plurality of first lower electrodes (21) and the plurality of second lower electrodes (22) are distributed at intervals along a first direction. The first lower electrodes (21) and the second lower electrodes (22) are arranged at intervals along a second direction. The first lower electrodes (21) or the second lower electrodes (22) are provided with a mounting position (23) so as to be able to mount the transverse rib. An upper electrode group (3) is movable and positioned above the lower electrode group (2) along the first direction. The upper electrode group (3) includes a first upper electrode (31) and a second upper electrode (32) spaced apart along the second direction. The first upper electrode (31) and the second upper electrode (32) are connected by a wire (33). The first upper electrode (31) and the second upper electrode (32) can move up and down along the third direction to form a welding circuit with the first lower electrode (21), the second lower electrode (22), the first upper electrode (31), and the second upper electrode (32). The first direction, the second direction, and the third direction are perpendicular to each other.

2. The rebar tying device of claim 1, wherein, The mounting position (23) is a groove provided on the upper end face of the first lower electrode (21) or the upper end face of the second lower electrode (22). The height of one of the first lower electrode (21) and the second lower electrode (22) with the mounting position (23) is higher than that of the other. The groove extends through the first direction.

3. The rebar tying device of claim 2, wherein, The inner wall of the groove is set as an inclined surface so that the transverse rib can be moved out of the groove when it moves in the second direction.

4. The rebar tying device of claim 1, wherein, The lower electrode assembly (2) includes a welding transformer (24), which is connected to two electrode connecting plates (25) that are opposite each other along the second direction. A plurality of first lower electrodes (21) and a plurality of second lower electrodes (22) are respectively disposed on the two electrode connecting plates (25).

5. The rebar tying device of claim 1, wherein, The upper electrode group (3) includes a first translation drive (34) and two lifting drive (35). The first translation drive (34) drives the two lifting drive (35) to move along the first direction. The first upper electrode (31) and the second upper electrode (32) are respectively disposed at the output ends of the two lifting drive (35). The lifting drive (35) drives the first upper electrode (31) and the second upper electrode (32) to move up and down along the third direction.

6. The rebar tying device of claim 1, wherein, The first upper electrode (31) and the second upper electrode (32) in the same upper electrode group (3) are offset in the first direction.

7. A reinforcing mesh welding apparatus as claimed in any one of claims 1 to 6, wherein, The steel mesh welding device further includes an alignment component (4), which is disposed at one end of the lower electrode group (2) along the first direction to align the ends of the transverse bars placed in the placement position (23).

8. The rebar tying device of claim 7, wherein, The alignment component (4) includes a second translation drive (41) and a rotation drive (42). The output end of the rotation drive (42) is provided with an alignment plate (43). The second translation drive (41) drives the rotation drive (42) to translate along the first direction, and the rotation drive (42) drives the alignment plate (43) to rotate.

9. The steel mesh welding device according to any one of claims 1-6, characterized in that, The steel mesh welding device further includes a support component (5), which is disposed at one end of the lower electrode group (2) along the second direction to support the welded transverse and longitudinal bars.

10. The rebar tying device of claim 9, wherein, The support component (5) includes a support drive (51), and a support frame (52) is provided at the output end of the support drive (51). The support drive (51) drives the support frame (52) to move up and down along the third direction.