Micro-channel aluminum flat pipe surface thermal spraying equipment

Abstract

The utility model belongs to the technical field of micro-channel aluminum flat pipe machining equipment, and particularly relates to micro-channel aluminum flat pipe surface thermal spraying equipment which comprises a conveying frame, a conveying servo motor is fixedly connected to the outer wall of a plate body of the conveying frame, the output end of the conveying servo motor is fixedly connected with a conveying roller, and the upper end of a side plate of the conveying frame is fixedly connected with a protective cover. A protective cover is fixedly arranged on the base, a melt injection spray gun, an air pump and a filter box are fixedly arranged in the protective cover, a wire feeding servo motor is fixedly connected to the outer wall of one side of the melt injection spray gun, a first servo driver is fixedly connected to the wire feeding servo motor, and a second servo driver is fixedly connected to the conveying servo motor. Under the action of mutual cooperation of the wire feeding servo motor, the conveying servo motor, the first servo driver, the second servo driver and the controller, the wire feeding speed is equal to the conveying speed of the micro-channel aluminum flat pipe, and it is guaranteed that the surface zinc spraying quality of the micro-channel aluminum flat pipe is stable.

Description

Technical Field

[0001] This utility model belongs to the technical field of microchannel aluminum flat tube processing equipment, specifically a microchannel aluminum flat tube surface thermal spraying equipment. Background Technology

[0002] Microchannel flat tubes are specialized components for carrying R134A environmentally friendly refrigerant. Due to their high efficiency, environmental friendliness, low cost, lightweight design, and high reliability, they were initially mandated for use in automotive air conditioning systems. Microchannel aluminum tubes, containing refrigerant and exposed to air corrosion, are prone to leaks due to pitting corrosion. Therefore, a thin layer of zinc must be sprayed onto their outer surface to protect the tube wall from corrosion; this spraying requires thermal spraying equipment.

[0003] Existing thermal spraying equipment for microchannel aluminum flat tubes typically operates at a constant speed for zinc spraying. The wire feeding speed does not change with the conveying speed of the microchannel aluminum flat tube, resulting in a failure to guarantee the quality of zinc spraying when the conveying speed of the microchannel aluminum flat tube changes. Summary of the Invention

[0004] The purpose of this invention is to provide a thermal spraying device for the surface of microchannel aluminum flat tubes, which ensures that the wire feeding speed is proportional to the conveying speed of the microchannel aluminum flat tubes, thereby guaranteeing the stability of the zinc spraying quality on the surface of the microchannel aluminum flat tubes.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a microchannel aluminum flat tube surface thermal spraying device is provided, including a conveyor frame. A conveying servo motor is fixedly connected to the outer wall of the conveyor frame. A conveying roller is fixedly connected to the output end of the conveying servo motor. A protective cover is fixedly connected to the upper end of the side plate of the conveyor frame. A fusion spray gun, an air pump, and a filter box are fixedly installed inside the protective cover. A wire feeding servo motor is fixedly connected to one side of the outer wall of the fusion spray gun. A servo driver one is fixedly connected to the wire feeding servo motor. A servo driver two is fixedly connected to the conveying servo motor. A controller is fixedly connected to one side of the outer wall of the protective cover. Both servo driver one and servo driver two are electrically connected to the controller.

[0006] Optionally, the air pump and filter box are located on one side of the fusion spray gun, and the air pump and filter box are connected by a pipe.

[0007] Optionally, a filter screen is slidably connected inside the filter box, and an air inlet hood is fixedly connected to the air inlet of the filter box via a pipe.

[0008] Optionally, a servo driver three is fixedly connected to the motor of the air pump, and the servo driver three is electrically connected to the controller.

[0009] Optionally, the wire feeding servo motor is electrically connected to one servo driver, and the conveying servo motor is electrically connected to another servo driver.

[0010] Optionally, the front end of the protective cover is rotatably connected to a double door, the air outlet of the air pump is fixedly connected to an exhaust pipe, and the other end of the exhaust pipe passes through the top plate of the protective cover.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This utility model is equipped with a wire feeding servo motor, a conveying servo motor, a servo driver one, a servo driver two, and a controller. When the output speed of the wire feeding servo motor changes through the controller, the conveying speed of the microchannel aluminum flat tube changes accordingly. At this time, the controller will send a change signal to the servo driver one according to the set value, and control the rotation speed of the wire feeding servo motor to change accordingly, so that the wire feeding speed is proportional to the conveying speed of the microchannel aluminum flat tube, ensuring the stability of the zinc spraying quality on the surface of the microchannel aluminum flat tube.

[0013] 2. This utility model is equipped with a wind pump, filter box, air inlet hood, air outlet pipe and filter screen structure, which can clean the surface of the microchannel aluminum flat tube to be sprayed with zinc before spraying, so as to avoid dust adhesion and affect the zinc spraying quality of the microchannel aluminum flat tube. Similarly, when the speed of the conveying servo motor changes, the speed of the wind pump motor can be changed by the servo driver, thereby increasing or decreasing the air volume to ensure stable dust removal quality. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front-view three-dimensional structural diagram of the present invention in use.

[0016] Figure 2 This is a first-view internal structural diagram of the protective cover of this utility model;

[0017] Figure 3 This is a second-view internal structural diagram of the protective cover of this utility model;

[0018] Figure 4 This is a structural diagram of the filter box of this utility model.

[0019] In the diagram: 1. Conveyor frame; 2. Conveyor roller; 3. Microchannel aluminum flat tube; 4. Protective cover; 5. Fusion spray gun; 6. Air pump; 7. Filter box; 8. Air inlet hood; 9. Exhaust pipe; 10. Filter screen; 11. Wire feeding servo motor; 12. Conveying servo motor; 13. Servo driver one; 14. Servo driver two; 15. Servo driver three; 16. Controller. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0021] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0022] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0023] 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 as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] Reference Figure 1-4The present invention provides a thermal spraying device for the surface of microchannel aluminum flat tubes. The device includes a conveyor frame 1. A conveying servo motor 12 is fixedly connected to the outer wall of the conveyor frame 1. A conveying roller 2 is fixedly connected to the output end of the conveying servo motor 12. A protective cover 4 is fixedly connected to the upper end of the side plate of the conveyor frame 1. A fusion spray gun 5, a blower 6, and a filter box 7 are fixedly installed inside the protective cover 4. A wire feeding servo motor 11 is fixedly connected to one side of the outer wall of the fusion spray gun 5. A servo driver 13 is fixedly connected to the wire feeding servo motor 11. A servo driver 14 is fixedly connected to the conveying servo motor 12. A controller 16 is fixedly connected to one side of the outer wall of the protective cover 4. Both the servo driver 13 and the servo driver 14 are electrically connected to the controller 16.

[0025] The present invention provides a microchannel aluminum flat tube surface thermal spraying equipment. Compared with the prior art, the zinc wire conveying speed can be proportionally changed with the conveying speed of the microchannel aluminum flat tube 3, ensuring the stability of zinc spraying quality.

[0026] In another embodiment of this utility model, please refer to Figure 3 and Figure 4 The air pump 6 and the filter box 7 are located on one side of the fusion spray gun 5, and the air pump 6 and the filter box 7 are connected by a pipe. The filter screen 10 is slidably connected inside the filter box 7, which makes it easy to disassemble and clean the filter screen 10. The air inlet of the filter box 7 is fixedly connected to the air inlet hood 8 through a pipe. The air inlet hood 8 can suck away the dust on the upper surface of the microchannel aluminum flat tube 3.

[0027] In another embodiment of this utility model, please refer to Figures 1 to 3 A servo driver 15 is fixedly connected to the motor of the air pump 6. The servo driver 15 is electrically connected to the controller 16. The wire feeding servo motor 11 is electrically connected to the servo driver 13. The conveying servo motor 12 is electrically connected to the servo driver 24. The servo motors are controlled to rotate by the servo drivers. The servo drivers 13, 24 and 35 are all AC servo drivers.

[0028] In another embodiment of this utility model, please refer to Figure 1 and Figure 2 The front end of the protective cover 4 is rotatably connected to a double door, which makes it convenient to inspect and maintain the internal components after opening; the air outlet of the air pump 6 is fixedly connected to an exhaust pipe 9, and the other end of the exhaust pipe 9 is set through the top plate of the protective cover 4, through which clean gas can be discharged into the air.

[0029] Working principle: During use, the controller 16 sends a signal to the servo driver 14 to start the conveying servo motor 12, which drives the conveying roller 2 to rotate, thereby conveying the microchannel aluminum flat tube 3 into the protective cover 4. At the same time, the controller 16 sends signals to the servo drivers 13 and 15 to start the wire feeding servo motor 11 and the air pump 6, respectively. After the air pump 6 starts, the dust on the surface of the microchannel aluminum flat tube 3 is sucked into the filter box 7 through the air inlet hood 8, filtered through the filter screen 10, and then discharged through the exhaust pipe 9. After the wire feeding servo motor 11 starts, it feeds zinc into the fusion spray gun 5. The zinc wire is melted and sprayed onto the surface of the microchannel aluminum flat tube 3 through the fusion spray gun 5. When it is necessary to adjust the conveying speed of the microchannel aluminum flat tube 3, the controller 16 sends a signal to the servo driver 14 to control the output speed of the conveying servo motor 12. The controller 16 will send signals to the servo driver 13 and the servo driver 35 according to the set value, and adjust the speed of the wire feeding servo motor 11 and the air pump 6 motor accordingly. Thus, the air intake and the conveying speed of the zinc wire are adjusted according to the conveying speed of the microchannel aluminum flat tube 3, ensuring the stability of the dust removal and spraying quality.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A thermal spraying device for the surface of microchannel aluminum flat tubes, comprising a conveyor frame (1), characterized in that: A conveying servo motor (12) is fixedly connected to the outer wall of the conveying frame (1). A conveying roller (2) is fixedly connected to the output end of the conveying servo motor (12). A protective cover (4) is fixedly connected to the upper end of the side plate of the conveying frame (1). A fusion spray gun (5), an air pump (6), and a filter box (7) are fixedly installed inside the protective cover (4). A wire feeding servo motor (11) is fixedly connected to one side of the fusion spray gun (5). A servo driver one (13) is fixedly connected to the wire feeding servo motor (11). A servo driver two (14) is fixedly connected to the conveying servo motor (12). A controller (16) is fixedly connected to one side of the protective cover (4). Both the servo driver one (13) and the servo driver two (14) are electrically connected to the controller (16).

2. The microchannel aluminum flat tube surface thermal spraying equipment as described in claim 1, characterized in that: The air pump (6) and the filter box (7) are located on one side of the fusion spray gun (5), and the air pump (6) and the filter box (7) are connected by a pipe.

3. The microchannel aluminum flat tube surface thermal spraying equipment as described in claim 2, characterized in that: A filter screen (10) is slidably connected inside the filter box (7), and an air inlet hood (8) is fixedly connected to the air inlet of the filter box (7) through a pipe.

4. The microchannel aluminum flat tube surface thermal spraying equipment as described in claim 1, characterized in that: A servo driver three (15) is fixedly connected to the motor of the air pump (6), and the servo driver three (15) is electrically connected to the controller (16).

5. The microchannel aluminum flat tube surface thermal spraying equipment as described in claim 1, characterized in that: The wire feeding servo motor (11) is electrically connected to servo driver one (13), and the conveying servo motor (12) is electrically connected to servo driver two (14).

6. The microchannel aluminum flat tube surface thermal spraying equipment as described in claim 1, characterized in that: The front end of the protective cover (4) is rotatably connected to a double door, and the air outlet of the air pump (6) is fixedly connected to an exhaust pipe (9). The other end of the exhaust pipe (9) passes through the top plate of the protective cover (4).

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