Automatic metal wire straightening and feeding mechanism for electric arc spraying

Abstract

The utility model discloses an electric arc spraying metal wire automatic straightening wire feeding mechanism which comprises a workbench, two fixed frames are fixedly connected to the top of the workbench, two movable frames are slidably connected to the top of the workbench, a connecting plate is fixedly connected between the two movable frames, and a fixed plate is fixedly connected to the top of the workbench. A second motor is fixedly connected to the surface of the fixed plate, the output end of the second motor penetrates through an inner cavity of the fixed plate and is fixedly connected with a threaded rod, the outer side of the threaded rod is in threaded sleeving connection with a threaded pipe, rotating shafts are rotationally connected to the inner sides of the fixed frame and the movable frame, and straightening wheels are fixedly connected to the outer sides of the rotating shafts; according to the straightening device, straightening in two directions is achieved through cooperation of the straightening wheels and the straightening rods, automatic straightening is achieved under the action of the first motor, the problem that manual straightening is low in efficiency is solved, and the occupational fatigue risk of workers is reduced.

Description

Technical Field

[0001] This application relates to the technical field of arc spraying, and more specifically, to an automatic straightening and wire feeding mechanism for metal wire used in arc spraying. Background Art

[0002] Arc spraying is a thermal spraying process. An arc is generated between two electrically conductive metal electrodes (usually in the form of wires or rods). The high temperature of the arc melts the electrode material, and then the molten metal is atomized into tiny particles by means of a high-speed compressed gas flow (such as compressed air) and sprayed onto the surface of the workpiece to form a coating. Metal wire is used during arc spraying.

[0003] In the arc spraying process, the straightness of the metal wire self-consumable electrode directly affects the wire feeding stability and spraying quality. The current common problem in the industry is that the traditional process relies on manual straightening of the metal wire, which has significant defects: the manual straightening efficiency is low, and manual operation poses safety hazards. The sharp edges of the wire are likely to scratch the operator, and long-term repetitive labor increases the risk of occupational fatigue.

[0004] To solve the above problems, this application provides an automatic straightening and wire feeding mechanism for metal wire used in arc spraying. Utility Model Content

[0005] An object of this application is to propose an automatic straightening and wire feeding mechanism for metal wire used in arc spraying, including a workbench. Two fixed frames are fixedly connected to the top of the workbench. Two moving frames are slidably connected to the top of the workbench. A connecting plate is fixedly connected between the two moving frames. A fixed plate is fixedly connected to the top of the workbench. A second motor is fixedly connected to the surface of the fixed plate. The output end of the second motor penetrates the inner cavity of the fixed plate and is fixedly connected to a threaded rod. A threaded tube is threadedly sleeved on the outer side of the threaded rod. The inner sides of the fixed frame and the moving frame are both rotatably connected to a rotating shaft. A straightening wheel is fixedly connected to the outer side of the rotating shaft. A plurality of straightening grooves are opened on the outer side of the straightening wheel. A first motor for driving the rotating shaft to rotate is fixedly connected to the top of one of the moving frames. A transmission component is arranged inside the two moving frames.

[0006] Further, the transmission component includes a driving wheel and a driven wheel. The driving wheel and the driven wheel are respectively fixedly connected to the outer sides of the two rotating shafts near the front side of the workbench. A transmission belt is sleeved on the outer sides of the driving wheel and the driven wheel.

[0007] Further, a chute is opened on the top of the workbench. A slider adapted to the chute is slidably connected inside the chute. The bottom end surface of the moving frame is fixedly connected to the top end surface of the slider. The slider is arranged in a "convex" shape structure.

[0008] Furthermore, the end of the threaded tube away from the fixed plate is fixedly connected to the surface of the connecting plate, and both the movable frame and the fixed frame are arranged in a "U" shape.

[0009] Furthermore, a limiting plate is fixedly connected to the top of the two fixed frames, and an electric push rod is fixedly connected to the top of the limiting plate and the bottom surface of the worktable. The output ends of the two electric push rods pass through the inner cavity of the limiting plate and the inner cavity of the worktable, respectively. A connecting frame is fixedly connected to the output ends of the two electric push rods, and a straightening rod is rotatably connected to the inner side of the connecting frame.

[0010] Furthermore, two connecting rods are fixedly connected between the two movable frames, and the two connecting rods are respectively located on the upper and lower sides of the connecting plate.

[0011] The beneficial effects of this application are:

[0012] 1. The wire is placed between two adjacent straightening slots. The first motor is controlled to move the two moving frames and two straightening wheels backward, thereby clamping and limiting the wire. This presses the welding wire between the two adjacent straightening wheels. The first motor drives one of the rotating shafts and the driving wheel to rotate. The rotation of the driving wheel drives the transmission belt, the driven wheel, and the other rotating shaft to rotate, thus causing the two straightening wheels to rotate synchronously, thereby conveying the wire. Because the wire is pressed between the two adjacent straightening wheels, the friction during wire conveying causes the two straightening wheels to rotate synchronously. Two adjacent straightening wheels rotate relative to each other, thus using two sets of adjacent straightening wheels to straighten the wire laterally. Controlling two electric push rods causes the connecting frame to move the straightening rods, which in turn move and contact the wire. This allows the straightening rods, rotatably connected inside the connecting frame, to straighten the wire longitudinally, further improving the straightening effect. In summary, this application achieves straightening in two directions through the cooperation of straightening wheels and straightening rods, realizing automated straightening under the action of the first motor. This solves the problem of low efficiency in manual straightening and reduces the risk of occupational fatigue for workers.

[0013] 2. The multiple straightening grooves, combined with the adjustable-height straightening rod, facilitate the straightening of wires of different sizes, thus expanding the applicability of the device. Attached Figure Description

[0014] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0015] In the attached diagram:

[0016] Figure 1 This is a schematic diagram of the overall structure of this application;

[0017] Figure 2 For the purposes of this application Figure 1 Another perspective structural diagram;

[0018] Figure 3 This is a top view of this application;

[0019] Figure 4 This is the main view of this application.

[0020] Explanation of the labels in the diagram:

[0021] 1. Workbench; 2. Fixed frame; 3. Moving frame; 4. First motor; 5. Connecting rod; 6. Slider; 7. Slide groove; 8. Fixed plate; 9. Second motor; 10. Threaded pipe; 11. Connecting plate; 12. Rotating shaft; 13. Straightening wheel; 14. Straightening groove; 15. Limiting plate; 16. Electric push rod; 17. Transmission belt; 18. Threaded rod; 19. Connecting frame; 20. Straightening rod. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0025] Example:

[0026] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 This application discloses an automatic straightening and feeding mechanism for metal wire used in arc spraying. It includes a worktable 1, with two fixed frames 2 fixedly connected to the top of the worktable 1, and two movable frames 3 slidably connected to the top of the worktable 1. A connecting plate 11 is fixedly connected between the two movable frames 3. A fixed plate 8 is fixedly connected to the top of the worktable 1, and a second motor 9 is fixedly connected to the surface of the fixed plate 8. The output end of the second motor 9 passes through the inner cavity of the fixed plate 8 and is fixedly connected to a threaded rod 18. A threaded tube 10 is threadedly sleeved on the outer side of the threaded rod 18. Rotating shafts 12 are rotatably connected to the inner sides of both the fixed frames 2 and the movable frames 3. A straightening wheel 13 is fixedly connected to the outer side of the rotating shaft 12, and multiple straightening grooves 14 are formed on the outer side of the straightening wheel 13. The diameters of the multiple straightening grooves 14 are different, increasing from top to bottom. The arrangement of multiple straightening grooves 14, together with the adjustable-height straightening rod 20, facilitates the straightening of wires of different sizes, thus expanding the applicability of the device. The top of one of the movable frames 3 is fixedly connected to a first motor 4 for driving the rotating shaft 12 to rotate. The inner sides of the two movable frames 3 are provided with transmission components. When the wire is placed between two adjacent straightening grooves 14, the first motor 4 is controlled to drive the threaded rod 18 to rotate. The rotation of the threaded rod 18 causes the threaded tube 10 to move backward, thereby causing the connecting plate 11 to drive the two movable frames 3 to move backward, thus clamping and limiting the wire, and thus pressing the welding wire between two adjacent straightening wheels 13.

[0027] Please see Figure 2 and Figure 4 The transmission assembly includes a drive wheel and a driven wheel. The drive wheel and the driven wheel are fixedly connected to the outer sides of two rotating shafts 12 near the front of the worktable 1, respectively. A transmission belt 17 is sleeved on the outer side of the drive wheel and the driven wheel. The first motor 4 is controlled to drive one of the rotating shafts 12 and the drive wheel to rotate. The rotation of the drive wheel drives the transmission belt 17, the driven wheel and the other rotating shaft 12 to rotate, thereby making the two straightening wheels 13 rotate synchronously. A groove 7 is provided on the top of the worktable 1. A matching slider 6 is slidably connected inside the groove 7. The bottom end of the moving frame 3 is fixedly connected to the top end of the slider 6. The slider 6 is set in a "convex" shape. The groove 7, in conjunction with the slider 6, limits the sliding of the moving frame 3. When the moving frame 3 moves, the moving frame 3 drives the slider 6 to move inside the groove 7, which improves the stability of the moving frame 3 when it moves. The end of the threaded tube 10 away from the fixed plate 8 is fixedly connected to the surface of the connecting plate 11. Both the moving frame 3 and the fixed frame 2 are set in a "U" shape.

[0028] Please see Figure 2Two fixed frames 2 are fixedly connected to the top of a limiting plate 15. Electric push rods 16 are fixedly connected to the top of the limiting plate 15 and the bottom surface of the worktable 1. The output ends of the two electric push rods 16 pass through the inner cavity of the limiting plate 15 and the inner cavity of the worktable 1, respectively. The output ends of the two electric push rods 16 are fixedly connected to a connecting frame 19. A straightening rod 20 is rotatably connected to the inner side of the connecting frame 19. Controlling the two electric push rods 16 to work causes the connecting frame 19 to drive the straightening rod 20 to move, thereby causing the two straightening rods 20 to move and contact the wire. The straightening rod 20 rotatably connected inside the connecting frame 19 is used to straighten the wire longitudinally, further improving the straightening effect. Two connecting rods 5 are fixedly connected between the two moving frames 3. The connecting rods 5 connect and fix the two moving frames 3, further improving the stability of the connection between the two moving frames 3. The two connecting rods 5 are respectively set on the upper and lower sides of the connecting plate 11.

[0029] The implementation principle of this application embodiment is as follows: the wire is placed between two adjacent straightening grooves 14, the first motor 4 is controlled to drive the threaded rod 18 to rotate, the threaded rod 18 rotates and the threaded tube 10 moves backward, thereby causing the connecting plate 11 to drive the two moving frames 3 and the two straightening wheels 13 to move backward, thereby clamping and limiting the wire, and thus pressing the welding wire between the two adjacent straightening wheels 13.

[0030] The first motor 4 is controlled to drive one of the rotating shafts 12 and the driving wheel to rotate. The rotation of the driving wheel drives the transmission belt 17, the driven wheel and the other rotating shaft 12 to rotate, thereby causing the two straightening wheels 13 to rotate synchronously, thus realizing the transmission of the wire. Since the wire is pressed between the two adjacent straightening wheels 13, the friction force causes the two adjacent straightening wheels 13 to rotate relative to each other during the transmission of the wire. In this way, the two sets of two adjacent straightening wheels 13 are used to straighten the wire laterally.

[0031] The two electric push rods 16 are controlled to work, so that the connecting frame 19 drives the straightening rods 20 to move, and then the two straightening rods 20 move to contact the wire. The straightening rods 20, which are rotatably connected inside the connecting frame 19, straighten the wire longitudinally, thereby further improving the straightening effect.

[0032] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and application concept of this application, should be included within the scope of protection of this application.

Claims

1. An automatic straightening and feeding mechanism for metal wire used in arc spraying, comprising a worktable (1), characterized in that: Two fixing brackets (2) are fixedly connected to the top of the workbench (1). Two moving brackets (3) are slidably connected to the top of the workbench (1). A connecting plate (11) is fixedly connected between the two moving brackets (3). A fixing plate (8) is fixedly connected to the top of the workbench (1). A second motor (9) is fixedly connected to the surface of the fixing plate (8). The output end of the second motor (9) penetrates through the inner cavity of the fixing plate (8) and is fixedly connected to a threaded rod (18). A threaded tube (10) is threadedly sleeved on the outer side of the threaded rod (18). Rotating shafts (12) are rotatably connected to the inner sides of the fixing brackets (2) and the moving brackets (3). A straightening wheel (13) is fixedly connected to the outer side of the rotating shaft (12). A plurality of straightening grooves (14) are formed in the outer side of the straightening wheel (13). A first motor (4) for driving the rotating shaft (12) to rotate is fixedly connected to the top of one of the moving brackets (3). A transmission component is arranged inside the two moving brackets (3).

2. The automatic straightening and feeding mechanism for metal wire used in arc spraying according to claim 1, characterized in that: The transmission component includes a driving wheel and a driven wheel. Driving wheels and driven wheels are respectively fixedly connected to the outer sides of the two rotating shafts (12) near the front side of the workbench (1). A transmission belt (17) is sleeved on the outer sides of the driving wheel and the driven wheel.

3. The automatic straightening and feeding mechanism for metal wire used in arc spraying according to claim 1, characterized in that: A chute (7) is formed in the top of the workbench (1). A slider (6) adapted to the chute (7) is slidably connected inside the chute (7). The bottom end surface of the moving bracket (3) is fixedly connected to the top end surface of the slider (6). The slider (6) is arranged in a "convex" shape structure.

4. The automatic straightening and feeding mechanism for metal wire used in arc spraying according to claim 1, characterized in that: One end of the threaded tube (10) away from the fixing plate (8) is fixedly connected to the surface of the connecting plate (11). Both the moving bracket (3) and the fixing bracket (2) are arranged in a "U" shape structure.

5. The automatic straightening and feeding mechanism for metal wire used in arc spraying according to claim 1, characterized in that: Limiting plates (15) are fixedly connected to the tops of the two fixing brackets (2). Electric push rods (16) are fixedly connected to the top of the limiting plates (15) and the bottom end surface of the workbench (1). The output ends of the two electric push rods (16) respectively penetrate through the inner cavities of the limiting plates (15) and the inner cavity of the workbench (1). Connecting frames (19) are respectively fixedly connected to the output ends of the two electric push rods (16). A straightening rod (20) is rotatably connected to the inner side of the connecting frame (19).

6. The automatic straightening and feeding mechanism for metal wire used in arc spraying according to claim 1, characterized in that: Two connecting rods (5) are fixedly connected between the two moving brackets (3). The two connecting rods (5) are respectively arranged above and below the connecting plate (11).

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