A wire feeder

Abstract

This utility model discloses a wire feeding mechanism. A first driven wheel and a second driven wheel achieve synchronous counter-rotation via a second driven gear disc, a driving gear disc, a first driven gear disc, and a third driven gear disc. A feeding channel for the wire to pass through is formed between the first and second driven wheels. When it is necessary to adjust the feeding channel, i.e., adjust the distance between the first driven wheel and the second driven wheel, the distance between the second driven gear disc and the third driven gear disc is adjusted by an adjusting device. The upper limit of the adjustment of the second driven gear disc should maintain the meshing engagement between the second driven gear disc and the driving gear disc. When the second driven gear disc produces a small displacement relative to the driving gear disc, a larger displacement will be formed between the second and third driven gear discs. Through the amplification effect of this mechanical structure, the relative displacement adjustment range between the first and second driven wheels is significantly increased, thereby effectively widening the adjustment range of the feeding channel.

Description

Technical Field

[0001] This utility model relates to the technical field of straightening machine equipment, and in particular to a wire feeding mechanism. Background Technology

[0002] A wire straightening machine (also known as a wire straightening and cutting machine or a wire straightening and cutting machine) is a piece of equipment used for processing coiled iron or steel wire. Its core function is to straighten the wire and precisely cut it to a set length through the coordinated operation of three mechanisms: wire feeding, straightening, and cutting. This meets the dimensional accuracy requirements of subsequent production and improves processing convenience. The wire feeding mechanism is responsible for conveying the coiled wire, but the initial meshing gap between its driving and driven wheels is fixed. When processing wires of different diameters, the height of the driven wheel needs to be adjusted using a lifting and adjusting device to match the gap.

[0003] A height-adjustable feeding mechanism, as disclosed in Chinese Utility Model Patent (Authorization Announcement No.: CN217701589U), includes a mounting frame. The mounting frame has a drive wheel and a driven wheel located above the drive wheel and rotating synchronously in the opposite direction. A feeding channel for bar stock is formed between the drive wheel and the driven wheel. The mounting frame has a vertically arranged mounting cavity containing an upper slider and a lower slider. The drive wheel is rotatably connected to the lower slider via a first rotating shaft, and the driven wheel is rotatably connected to the upper slider via a second rotating shaft. The transmission mechanism includes a driven gear connected to the first rotating shaft and a drive gear connected to the second rotating shaft, the drive gear and the driven gear meshing. The mounting frame has an adjustment structure for driving the upper slider to slide vertically relative to the lower slider. By adjusting the distance between the upper and lower sliders using the adjustment structure, the distance between the driven wheel and the drive wheel can be adjusted, thereby enabling the feeding mechanism to adapt to the conveying of bar stock of different thicknesses.

[0004] However, the highly adjustable feeding mechanism disclosed in the prior art is limited by the meshing constraint of the gear pair composed of the driving tooth and the driven tooth. That is, when the lifting adjustment of the driven wheel reaches the adjustment limit, it is necessary to ensure that the teeth of the driving tooth and the driven tooth remain effectively meshed in order to avoid transmission failure. This structural design makes the adjustment range of the feeding groove of the wire feeding mechanism small, which makes it difficult to meet the diverse working conditions in practical applications.

[0005] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0006] The purpose of this invention is to solve the problem that the adjustment range of the feeding trough of the wire feeding mechanism in the prior art is small, which makes it difficult to meet the diverse working conditions in practical applications. Therefore, this invention proposes a wire feeding mechanism.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A wire feeding mechanism includes a mounting frame, on which a drive gear is mounted. The drive gear is connected to a driver. A first driven gear is synchronously driven above or below the drive gear, and a second driven gear is synchronously driven to the side of the drive gear. A third driven gear is synchronously driven to the side of the first driven gear. The second and third driven gears are vertically aligned and spaced apart. A first driven wheel is synchronously driven to the second driven gear, and a second driven wheel is synchronously driven to the third driven gear. A wire feeding channel is formed between the first and second driven wheels. The mounting frame is equipped with an adjustment device for adjusting the wire feeding channel.

[0009] Furthermore, the mounting frame is provided with a vertically arranged mounting cavity, and the mounting cavity is provided with an upper slider and a lower slider. The first driven wheel is rotatably connected to the upper slider, and the second driven wheel is rotatably connected to the lower slider. The adjusting device is used to drive the upper slider to slide vertically relative to the lower slider.

[0010] Furthermore, the adjusting device includes a cylinder, a connecting plate, and a connecting rod. The cylinder is fixedly mounted above the mounting bracket. The connecting plate is fixedly connected to the output end of the cylinder. The upper end of the connecting rod is slidably connected to the end of the connecting plate. The lower end of the connecting rod is fixedly connected to the upper slider. A spring is sleeved on the outer periphery of the connecting rod, and the spring abuts against the upper slider and the connecting plate.

[0011] Furthermore, the cylinder is a stroke-adjustable cylinder.

[0012] Furthermore, it also includes a lifting device for adjusting the lifting of the lower slider, the lifting device including a screw and a mounting base, the upper end of the screw being slidably connected to the mounting bracket, the lower end of the screw being threadedly connected to the mounting base, and the lower slider being disposed on the mounting base.

[0013] Furthermore, there are two second driven gear disks, respectively located on the left and right sides of the driving gear disk, and correspondingly there are two first driven wheels, each connected to the corresponding second driven gear disk; there are two third driven gear disks, respectively located on the left and right sides of the first driven gear disk, and correspondingly there are two second driven wheels, each connected to the corresponding third driven gear disk.

[0014] Furthermore, two sets of material conveying channels are formed between the first driven wheel and the second driven wheel.

[0015] Furthermore, the size of one set of material feeding channels is larger than the size of the other set of material feeding channels.

[0016] Furthermore, the mounting bracket is provided with a guide rail, and the upper slider and the lower slider are respectively provided with a sliding groove that slides and engages with the guide rail.

[0017] Furthermore, the upper slider is rotatably connected to an upper rotating shaft, one end of which is fixedly connected to a second driven gear disk, and the other end of which is fixedly connected to a first driven wheel; the lower slider is rotatably connected to a lower rotating shaft, one end of which is fixedly connected to a third driven gear disk, and the other end of which is fixedly connected to a second driven wheel.

[0018] The beneficial effects of this utility model after adopting the above structure are as follows: In the wire feeding mechanism described in this utility model, the first driven wheel and the second driven wheel achieve synchronous reverse rotation through a second driven gear disc, a driving gear disc, the first driven gear disc, and a third driven gear disc. A feeding channel for wire to pass through is formed between the first driven wheel and the second driven wheel. When it is necessary to adjust the feeding channel, i.e., adjust the distance between the first driven wheel and the second driven wheel, the distance between the second driven gear disc and the third driven gear disc is adjusted by an adjusting device. The upper limit of the adjustment of the second driven gear disc should maintain the meshing engagement between the second driven gear disc and the driving gear disc. When the second driven gear disc produces a small displacement relative to the driving gear disc, a large displacement will be formed between the second driven gear disc and the third driven gear disc. This transmission characteristic, through the amplification effect of the mechanical structure, significantly increases the relative displacement adjustment range between the first driven wheel and the second driven wheel, thereby effectively widening the adjustment range of the feeding channel between the first driven wheel and the second driven wheel, allowing the wire feeding mechanism to adapt to the wire transmission needs under diverse working conditions. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model. Figure 2 ;

[0022] Figure 3 This is a cross-sectional view of the overall structure of this utility model. Figure 1 ;

[0023] Figure 4 This is a cross-sectional view of the overall structure of this utility model. Figure 2 ;

[0024] Figure 5 This is a cross-sectional view of the overall structure of this utility model. Figure 3 ;

[0025] Figure 6 This is a schematic diagram of the connection between the active gear disk and the second driven gear disk of this utility model.

[0026] Figures 1 to 6 The winning number is:

[0027] 1. Mounting bracket; 11. Upper slider; 111. Slide groove; 112. Upper rotating shaft; 12. Lower slider; 121. Lower rotating shaft; 13. Guide rail; 2. Drive gear plate; 21. Second driven gear plate; 211. First driven wheel; 3. First driven gear plate; 31. Third driven gear plate; 311. Second driven wheel; 4. Material feeding channel; 5. Adjusting device; 51. Cylinder; 511. Output end; 52. Connecting plate; 53. Connecting rod; 54. Spring; 6. Lifting device; 61. Screw; 62. Mounting base. Detailed Implementation

[0028] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0029] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0034] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0035] like Figures 1 to 6As shown, a wire feeding mechanism includes a mounting frame 1, on which a drive gear 2 is mounted. The drive gear 2 is connected to a driver (not shown in the figure). A first driven gear 3 is synchronously driven above or below the drive gear 2 in opposite directions. A second driven gear 21 is synchronously driven to the side of the drive gear 2. A third driven gear 31 is synchronously driven to the side of the first driven gear 3. The second driven gear 21 and the third driven gear 31 are vertically corresponding and spaced apart. A first driven wheel 211 is synchronously driven to the second driven gear 211, and a second driven wheel 311 is synchronously driven to the third driven gear 311. A feeding channel 4 for wire to pass through is formed between the first driven wheel 211 and the second driven wheel 311. An adjustment device 5 for adjusting the feeding channel 4 is provided on the mounting frame 1.

[0036] Based on the above embodiments, the present invention aims to provide a wire feeding mechanism in which the first driven wheel 211 and the second driven wheel 311 achieve synchronous reverse rotation through the second driven gear disc 21, the driving gear disc 2, the first driven gear disc 3, and the third driven gear disc 31. A feeding channel 4 for wire to pass through is formed between the first driven wheel 211 and the second driven wheel 311. When it is necessary to adjust the feeding channel 4, that is, to adjust the distance between the first driven wheel 211 and the second driven wheel 311, the distance between the second driven gear disc 21 and the third driven gear disc 31 is adjusted by the adjusting device 5. The upper limit of the adjustment of the second driven gear disc 21 should maintain the meshing engagement between the second driven gear disc 21 and the driving gear disc 2. Thus, when the second driven gear disc 21 has a small displacement relative to the driving gear disc 2, a large displacement will be formed between the second driven gear disc 21 and the third driven gear disc 31. This transmission characteristic, through the amplification effect of the mechanical structure, significantly increases the relative displacement adjustment between the first driven wheel 211 and the second driven wheel 311, thereby effectively widening the adjustment range of the material feeding channel 4 between the first driven wheel 211 and the second driven wheel 311. This allows the wire feeding mechanism to adapt to the wire transmission requirements under diverse working conditions. In this embodiment, the driver is preferably a motor, and the rotational power generated by the motor after being powered on drives the drive gear disk 2 to rotate.

[0037] In this embodiment, as Figure 6As shown, for ease of description, when the second driven toothed disk 21 does not move (at which time the second driven toothed disk 21 is located at position O1), its distance relative to the driving toothed disk 2 is defined as b. When the second driven toothed disk 21 moves from position O1 to position O2, that is, when the second driven toothed disk 21 moves upward in the vertical direction by a displacement value, the distance of the second driven toothed disk 21 relative to the driving toothed disk 2 is c, and the displacement of the second driven toothed disk 21 relative to the driving toothed disk 2 is cb. Based on the triangle inequality, a triangle must satisfy the condition that the sum of any two sides is greater than the third side, i.e., a + b > c. Transforming the inequality, we get a > cb. This means that when the second driven toothed disc 21 moves vertically upward by a displacement value a, the second driven toothed disc 21 produces a displacement less than a relative to the driving toothed disc 2. Through the amplification effect of the mechanical structure, the second driven toothed disc 21 has a larger displacement adjustment amount relative to the third driven toothed disc 31, which in turn gives the first driven wheel 211 a larger displacement adjustment amount relative to the second driven wheel 311. This effectively widens the adjustment range of the material feeding channel 4 between the first driven wheel 211 and the second driven wheel 311, allowing the wire feeding mechanism to adapt to the wire feeding needs under diverse working conditions.

[0038] In another preferred embodiment of this utility model, the mounting frame 1 has a vertically arranged mounting cavity, in which an upper slider 11 and a lower slider 12 are provided. A first driven wheel 211 is rotatably connected to the upper slider 11, and a second driven wheel 311 is rotatably connected to the lower slider 12. The adjusting device 5 is used to drive the upper slider 11 to slide vertically relative to the lower slider 12. The upper slider 11 is rotatably connected to an upper rotating shaft 112, one end of which is fixedly connected to a second driven gear 21, and the other end of which is fixedly connected to the first driven wheel 211. The lower slider 12 is rotatably connected to a lower rotating shaft 121, one end of which is fixedly connected to a third driven gear 31, and the other end of which is fixedly connected to the second driven wheel 311. In this embodiment, as... Figure 4 and Figure 5As shown, the upper slider 11 is disposed in the upper part of the mounting cavity, the lower slider 12 is disposed in the lower part of the mounting cavity, and the adjusting device 5 is disposed above the mounting frame 1. The adjusting device 5 is used to drive the upper slider 11 to slide vertically relative to the lower slider 12. The first driven wheel 211 is rotatably connected to the upper slider 11 via the upper rotating shaft 112. The second driven gear 21 is disposed on the other side of the upper slider 11 relative to the first driven wheel 211. The second driven wheel 311 is rotatably connected to the lower slider 12 via the lower rotating shaft 121. The third driven gear 31 is disposed on the other side of the lower slider 12 relative to the second driven wheel 311. The second driven gear 21 meshes with the driving gear 2, the third driven gear 31 meshes with the first driven gear 3, and the first driven gear 3 meshes with the driving gear 2. Thus, the first driven wheel 211 and the second driven wheel 311 are connected by transmission through the second driven gear 21, the first driven gear 3, the driving gear 2, and the third driven gear 31.

[0039] In another preferred embodiment of this utility model, the adjusting device 5 includes a cylinder 51, a connecting plate 52, and a connecting rod 53. The cylinder 51 is fixedly mounted above the mounting bracket 1. The connecting plate 52 is fixedly connected to the output end 511 of the cylinder 51. The upper end of the connecting rod 53 is slidably connected to the end of the connecting plate 52, and the lower end of the connecting rod 53 is fixedly connected to the upper slider 11. A spring 54 is sleeved on the outer periphery of the connecting rod 53, and the spring 54 abuts against the upper slider 11 and the connecting plate 52. The cylinder 51 is a stroke-adjustable cylinder. In this embodiment, the connecting plate 52 is fixedly connected to the output end 511 of the cylinder 51. Connecting rods 53 are provided at both ends of the connecting plate 52. The lower end of the connecting rod 53 is connected to the upper slider 11. A spring 54 abuts against the upper slider 11 and the connecting plate 52 on the outer periphery of the connecting rod 53. The connecting plate 52 can slide vertically along the connecting rod 53. When cylinder 51 drives connecting plate 52 to move vertically upward, connecting plate 52 drives upper slider 11 to move upward synchronously via connecting rod 53; when cylinder 51 drives connecting plate 52 to move vertically downward, upper slider 11 moves vertically downward under the elastic force of spring 54. Simultaneously, spring 54 provides a certain buffering effect, allowing the bent section of the long strip wire to push up the first driven wheel 211 and continue forward when passing through material feeding channel 4, preventing jamming. In this embodiment, cylinder 51 is a stroke-adjustable cylinder; other cylinders or hydraulic cylinders can also be used.

[0040] As another preferred embodiment of this utility model, it further includes a lifting device 6 for adjusting the lifting and lowering of the lower slider 12. The lifting device 6 includes a screw 61 and a mounting base 62. The upper end of the screw 61 is slidably connected to the mounting bracket 1, and the lower end of the screw 61 is threadedly connected to the mounting base 62. The lower slider 12 is disposed on the mounting base 62. In this embodiment, as... Figure 2 and Figure 4 As shown, rotating the screw 61 causes the mounting base 62 to slide vertically upwards and downwards, thereby adjusting the height of the material feeding channel 4. The lifting device 6 in this embodiment has a simple structure and is easy to adjust; simply turning the screw 61 is sufficient to adjust the height of the material feeding channel 4. In this embodiment, a set of lifting devices 6 is provided at each of the left and right ends of the mounting frame 1 to achieve stable adjustment of the height of the material feeding channel 4.

[0041] As another preferred embodiment of this utility model, two second driven gear disks 21 are provided, respectively disposed on the left and right sides of the driving gear disk 2, and correspondingly two first driven wheels 211 are provided, each drivingly connected to the corresponding second driven gear disk 21; two third driven gear disks 31 are provided, respectively disposed on the left and right sides of the first driven gear disk 3, and correspondingly two second driven wheels 311 are provided, each drivingly connected to the corresponding third driven gear disk 31. In this embodiment, as... Figure 1 and Figure 2 As shown, there are two second driven gear disks 21, respectively located on the left and right sides of the driving gear disk 2. The second driven gear disks 21 located on the left and right sides of the driving gear disk 2 mesh with the driving gear disk 2. The driving gear disk 2 drives the two second driven gear disks 21 to rotate synchronously, thereby driving the two first driven wheels 211, which are respectively connected to the corresponding second driven gear disks 21, to rotate synchronously. There are two third driven gear disks 31, respectively located on the left and right sides of the first driven gear disk 3. The third driven gear 31 meshes with the first driven gear 3, and the first driven gear 3 meshes with the driving gear 2, so that the driving gear 2 drives the first driven gear 3 to rotate synchronously. The first driven gear 3 drives the two third driven gears 31 to rotate synchronously, which in turn drives the two second driven wheels 311, which are respectively connected to the corresponding third driven gears 31, to rotate synchronously. By setting two sets of first driven wheels 211 and second driven wheels 311, the stability of the wire feeding mechanism when conveying long strip wires is higher.

[0042] As another preferred embodiment of this utility model, two sets of material feeding channels 4 are formed between the first driven wheel 211 and the second driven wheel 311, wherein the size of one set of material feeding channels 4 is larger than the size of the other set of material feeding channels 4. In this embodiment, as... Figure 3 As shown, by setting at least two sets of feeding channels 4 of different sizes, the wire feeding mechanism can be further adapted to the feeding of wires of different thicknesses.

[0043] As another preferred embodiment of this utility model, the mounting bracket 1 is provided with a guide rail 13, and the upper slider 11 and the lower slider 12 are respectively provided with sliding grooves 111 that slide in conjunction with the guide rail 13. In this embodiment, as... Figure 5As shown, the upper slider 11 and the lower slider 12 are respectively connected to the mounting bracket 1 via the guide rail 13 and the slide groove 111 to achieve sliding engagement, which improves the stability of the upper slider 11 and the lower slider 12 when sliding.

[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A wire feeding mechanism, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with an active gear disk (2), the active gear disk (2) is connected to a driver, the active gear disk (2) is connected to a first driven gear disk (3) in reverse synchronous transmission above or below the active gear disk (2), the active gear disk (2) is connected to a second driven gear disk (21) on the side, the first driven gear disk (3) is connected to a third driven gear disk (31) on the side, the second driven gear disk (21) and the third driven gear disk (31) are arranged vertically and vertically and spaced apart; the second driven gear disk (21) is connected to a first driven wheel (211) in synchronous transmission, the third driven gear disk (31) is connected to a second driven wheel (311) in synchronous transmission, a material feeding channel (4) for wire to pass through is formed between the first driven wheel (211) and the second driven wheel (311), and the mounting frame (1) is provided with an adjustment device (5) for adjusting the material feeding channel (4).

2. The wire feeding mechanism according to claim 1, characterized in that: The mounting bracket (1) is provided with a vertically arranged mounting cavity. The mounting cavity is provided with an upper slider (11) and a lower slider (12). The first driven wheel (211) is rotatably connected to the upper slider (11), and the second driven wheel (311) is rotatably connected to the lower slider (12). The adjusting device (5) is used to drive the upper slider (11) to slide vertically relative to the lower slider (12).

3. The wire feeding mechanism according to claim 2, characterized in that: The adjusting device (5) includes a cylinder (51), a connecting plate (52) and a connecting rod (53). The cylinder (51) is fixedly mounted above the mounting bracket (1). The connecting plate (52) is fixedly connected to the output end (511) of the cylinder (51). The upper end of the connecting rod (53) is slidably connected to the end of the connecting plate (52). The lower end of the connecting rod (53) is fixedly connected to the upper slider (11). A spring (54) is sleeved on the outer periphery of the connecting rod (53). The spring (54) abuts against the upper slider (11) and the connecting plate (52).

4. The wire feeding mechanism according to claim 3, characterized in that: The cylinder (51) is a stroke adjustable cylinder.

5. A wire feeding mechanism according to claim 2, characterized in that: It also includes a lifting device (6) for adjusting the lifting of the lower slider (12), the lifting device (6) includes a screw (61) and a mounting base (62), the upper end of the screw (61) is slidably connected to the mounting bracket (1), the lower end of the screw (61) is threadedly connected to the mounting base (62), and the lower slider (12) is mounted on the mounting base (62).

6. The wire feeding mechanism according to claim 1, characterized in that: There are two second driven gear disks (21), which are respectively located on the left and right sides of the driving gear disk (2). Correspondingly, there are two first driven wheels (211), which are respectively connected to the corresponding second driven gear disks (21). There are two third driven gear disks (31), which are respectively located on the left and right sides of the first driven gear disk (3). Correspondingly, there are two second driven wheels (311), which are respectively connected to the corresponding third driven gear disks (31).

7. The wire feeding mechanism according to claim 1, characterized in that: Two sets of material feeding channels (4) are formed between the first driven wheel (211) and the second driven wheel (311).

8. The wire feeding mechanism according to claim 7, characterized in that: The size of one set of material feeding channels (4) is larger than the size of the other set of material feeding channels (4).

9. A wire feeding mechanism according to claim 2, characterized in that: The mounting bracket (1) is provided with a guide rail (13), and the upper slider (11) and lower slider (12) are respectively provided with a sliding groove (111) that slides and engages with the guide rail (13).

10. A wire feeding mechanism according to claim 2, characterized in that: The upper slider (11) is rotatably connected to an upper rotating shaft (112), one end of which is fixedly connected to a second driven gear disk (21), and the other end of which is fixedly connected to a first driven wheel (211); the lower slider (12) is rotatably connected to a lower rotating shaft (121), one end of which is fixedly connected to a third driven gear disk (31), and the other end of which is fixedly connected to a second driven wheel (311).

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