A housing coating processing device
By adjusting the position of the spray gun head using an infrared rangefinder sensor and a reciprocating screw driven by a servo motor, the problem of uneven coating thickness on the power tool housing was solved, distance control was achieved during the spraying process, and coating uniformity and spraying effect were improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU UNITED LEADING TECH CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
During the spraying process, the uneven areas of the power tool housing cause changes in the distance between the nozzle and the housing, resulting in uneven coating thickness and reduced spraying effect.
An infrared rangefinder sensor is used to measure the distance between the spray gun head and the power tool housing. A servo motor drives a reciprocating screw to adjust the position of the spray gun head, keeping the spraying distance constant. Combined with a purging mechanism, this prevents the paint from affecting the measurement accuracy.
By adjusting the distance between the spray gun head and the housing, a constant distance is maintained during the spraying process, which improves the uniformity of the coating and the spraying effect.
Smart Images

Figure CN224542028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tool housing coating technology, and in particular to a housing coating processing device. Background Technology
[0002] In the power tool manufacturing industry, the housing, as a key component, not only bears the heavy responsibility of supporting and connecting the motor, transmission mechanism, switch, handle, and accessories, making the power tool a complete entity, but also has a significant impact on the tool's appearance, safety, and durability. Therefore, high-quality coating processing of the housing is crucial for enhancing the market competitiveness of power tools.
[0003] During the spraying process of power tool housings, the power tool housing is clamped and fixed, with the spray nozzle facing the power tool housing. However, due to the uneven areas on the outer wall of the power tool housing, the distance between the nozzle and the housing changes during the spraying process, resulting in uneven coating thickness and reduced spraying effect. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies where the distance between the nozzle and the power tool changes during the spraying process, resulting in uneven coating thickness on the power tool housing and thus reducing the spraying effect. Therefore, this invention proposes a housing coating processing device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] Design a shell coating processing device, including an open frame, a movable frame slidably connected to the open frame, a spray gun head fixedly connected to the movable frame, one end of the spray gun head being connected to a conduit, a lifting mechanism fixedly connected to the bottom end of the open frame, a servo motor fixedly connected to the open frame, the output end of the servo motor extending into the open frame and fixedly connected to a reciprocating screw that drives the movable frame to move, and an infrared ranging sensor for measuring the spraying distance connected to the movable frame, the infrared ranging sensor being located below the spray gun head.
[0007] Preferably, a baffle is fixedly connected to the movable frame, and the baffle is located above the open frame.
[0008] Preferably, a first fixing rod is fixedly connected to the open frame, and a limit ring is fixedly connected to one end of the first fixing rod, through which the conduit passes.
[0009] Preferably, the lifting mechanism includes a base plate, a grooved column is fixedly connected to the upper end of the base plate, a movable rod is slidably connected to the upper end of the grooved column, the upper end of the movable rod is fixedly connected to the bottom end of the open frame, a connecting plate is fixedly connected to the movable rod, and an electric telescopic rod that drives the connecting plate to move in the vertical direction is fixedly connected to the upper end of the base plate.
[0010] Preferably, the movable rod is arranged perpendicular to the connecting plate.
[0011] Preferably, a purging mechanism is fixedly connected to the mobile frame to prevent the coating from affecting the measurement accuracy of the infrared ranging sensor. The purging mechanism includes a miniature air pump, which is fixedly connected to the mobile frame. The outlet end of the miniature air pump is connected to a connecting pipe, and one end of the connecting pipe is connected to a circular tube. The circular tube is located outside the infrared ranging sensor, and several air jet pipes are connected to the circular tube.
[0012] Preferably, one end of each jet pipe is inclined toward the axis of the annular tube.
[0013] Preferably, a second fixing rod is fixedly connected to the movable frame, and a conical air guide shroud is fixedly connected to one end of the second fixing rod. The conical air guide shroud is located outside the jet pipe.
[0014] The shell coating processing device proposed in this utility model has the following advantages:
[0015] During the spraying process, an infrared distance sensor measures the distance between the spray gun head and the power tool housing. A servo motor drives a reciprocating screw to rotate, which in turn moves a moving frame horizontally. The moving frame then moves the spray gun head, thus adjusting the distance between the spray gun head and the power tool housing during the spraying process to maintain a constant spraying distance and improve the spraying effect. Attached Figure Description
[0016] Figure 1 This utility model provides a schematic diagram of the structure of a shell coating processing device. Figure 1 ;
[0017] Figure 2 This utility model provides a schematic diagram of the structure of a shell coating processing device. Figure 2 ;
[0018] Figure 3 This is a schematic diagram of the connection between the movable frame and the purging mechanism in a shell coating processing device proposed in this utility model;
[0019] Figure 4 This is a cross-sectional view of the connection between the movable frame and the purging mechanism in a shell coating processing device proposed in this utility model.
[0020] In the diagram: 1. Open frame; 2. Moving frame; 3. Spray gun head; 4. Guide tube; 5. Lifting mechanism; 6. Servo motor; 7. Reciprocating screw; 8. Infrared ranging sensor; 9. Baffle; 10. First fixed rod; 11. Limiting ring; 12. Blowing mechanism; 51. Base plate; 52. Grooved column; 53. Movable rod; 54. Connecting plate; 55. Electric telescopic rod; 121. Miniature air pump; 122. Connecting pipe; 123. Circular pipe; 124. Jet pipe; 125. Second fixed rod; 126. Conical air guide hood. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1: Refer to Figure 1-4 A shell coating processing device includes an open frame 1, a movable frame 2 slidably connected to the open frame 1, a spray gun head 3 fixedly connected to the movable frame 2, one end of the spray gun head 3 connected to a conduit 4, a lifting mechanism 5 fixedly connected to the bottom end of the open frame 1, a servo motor 6 fixedly connected to the open frame 1, the output end of the servo motor 6 extending into the open frame 1 and fixedly connected to a reciprocating screw 7 that drives the movable frame 2 to move, an infrared ranging sensor 8 for measuring the spraying distance connected to the movable frame 2, the infrared ranging sensor 8 being located below the spray gun head 3, a baffle 9 fixedly connected to the movable frame 2, the baffle 9 being located above the open frame 1, a first fixing rod 10 fixedly connected to the open frame 1, one end of the first fixing rod 10 fixedly connected to a limit ring 11, and the conduit 4 passing through the limit ring 11.
[0023] Work process:
[0024] The conveying mechanism guides the paint into the conduit 4, and the paint in the conduit 4 is released from the spray gun head 3. After the lifting mechanism 5 is started, it drives the open frame 1 to move in the vertical direction. The open frame 1 drives the spray gun head 3 to move in the vertical direction through the moving frame 2. During the movement of the spray gun head 3, the paint is sprayed onto the power tool housing.
[0025] During the spraying process, the infrared distance sensor 8 measures the distance between the spray gun head 3 and the power tool housing. When the measured distance increases, the servo motor 6 drives the reciprocating screw 7 to rotate clockwise. After the reciprocating screw 7 rotates, the moving frame 2 moves towards the baffle 9, shortening the distance between it and the power tool housing. When the measured distance decreases, the servo motor 6 drives the reciprocating screw 7 to rotate counterclockwise. After the reciprocating screw 7 rotates, the moving frame 2 moves towards the servo motor 6, increasing the distance between it and the power tool housing. The servo motor 6 drives the reciprocating screw 7 to rotate, which in turn moves the moving frame 2 horizontally. The moving frame 2 then moves the spray gun head 3. By adjusting the distance between the spray gun head 3 and the power tool housing during the spraying process, the spraying distance is kept constant, thereby improving the spraying effect.
[0026] Example 2: Refer to Figure 1-3 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the lifting mechanism 5 includes a base plate 51, a grooved column 52 is fixedly connected to the upper end of the base plate 51, a movable rod 53 is slidably connected to the upper end of the grooved column 52, the upper end of the movable rod 53 is fixedly connected to the bottom end of the open frame 1, a connecting plate 54 is fixedly connected to the movable rod 53, the movable rod 53 and the connecting plate 54 are arranged perpendicularly, and an electric telescopic rod 55 is fixedly connected to the upper end of the base plate 51 to drive the connecting plate 54 to move in the vertical direction. After the electric telescopic rod 55 is started, it drives the connecting plate 54 to move in the vertical direction, the connecting plate 54 drives the movable rod 53 to move, the movable rod 53 moves smoothly under the guidance of the grooved column 52, and the movable rod 53 drives the open frame 1 to move in the vertical direction.
[0027] Example 3: When the infrared ranging sensor 8 measures distance, the coating tends to adhere to the infrared ranging sensor 8, thereby reducing the measurement accuracy. (Refer to...) Figure 3-4 As another preferred embodiment of this utility model, the difference from embodiment 1 is that a purging mechanism 12 is fixedly connected to the movable frame 2 to prevent the coating from affecting the measurement accuracy of the infrared ranging sensor 8. The purging mechanism 12 includes a miniature air pump 121, which is fixedly connected to the movable frame 2. The outlet end of the miniature air pump 121 is connected to a connecting pipe 122, and one end of the connecting pipe 122 is connected to a circular tube 123. The circular tube 123 is located outside the infrared ranging sensor 8. Several jet pipes 124 are connected to the circular tube 123. One end of each jet pipe 124 is inclined towards the axis of the circular tube 123. A second fixing rod 125 is fixedly connected to the movable frame 2. One end of the second fixing rod 125 is fixedly connected to a conical air guide shroud 126, which is located outside the jet pipe 124.
[0028] Work process:
[0029] After the micro air pump 121 is powered on, it draws in air. The drawn air is introduced into the annular tube 123 through the connecting pipe 122. The gas in the annular tube 123 is released from several jet pipes 124. The released gas is introduced into the conical air guide shroud 126. The conical air guide shroud 126 guides the gas and then releases it. The released gas is released directly in front of the infrared ranging sensor 8, which prevents the paint from adhering to the infrared ranging sensor 8 and thus does not affect the measurement accuracy of the infrared ranging sensor 8.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A shell coating processing apparatus, comprising an open frame (1), a movable frame (2) slidably connected to the open frame (1), a spray gun head (3) fixedly connected to the movable frame (2), one end of the spray gun head (3) being connected to a conduit (4), characterized in that, in: The bottom end of the open frame (1) is fixedly connected to a lifting mechanism (5), and a servo motor (6) is fixedly connected to the open frame (1). The output end of the servo motor (6) extends into the open frame (1) and is fixedly connected to a reciprocating screw (7) that drives the moving frame (2) to move. An infrared distance sensor (8) for measuring the spraying distance is connected to the moving frame (2). The infrared distance sensor (8) is located below the spray gun head (3).
2. The shell coating processing apparatus according to claim 1, characterized in that, A baffle (9) is fixedly connected to the movable frame (2), and the baffle (9) is located above the open frame (1).
3. The shell coating processing apparatus according to claim 1, characterized in that, A first fixing rod (10) is fixedly connected to the open frame (1), and a limiting ring (11) is fixedly connected to one end of the first fixing rod (10), and the conduit (4) passes through the limiting ring (11).
4. The shell coating processing apparatus according to claim 1, characterized in that, The lifting mechanism (5) includes a base plate (51), a grooved column (52) is fixedly connected to the upper end of the base plate (51), a movable rod (53) is slidably connected to the upper end of the grooved column (52), the upper end of the movable rod (53) is fixedly connected to the bottom end of the open frame (1), a connecting plate (54) is fixedly connected to the movable rod (53), and an electric telescopic rod (55) that drives the connecting plate (54) to move in the vertical direction is fixedly connected to the upper end of the base plate (51).
5. The shell coating processing apparatus according to claim 4, characterized in that, The movable rod (53) is perpendicular to the connecting plate (54).
6. The shell coating processing apparatus according to claim 1, characterized in that, A purging mechanism (12) is fixedly connected to the mobile frame (2) to prevent the coating from affecting the measurement accuracy of the infrared ranging sensor (8). The purging mechanism (12) includes a miniature air pump (121), which is fixedly connected to the mobile frame (2). The outlet end of the miniature air pump (121) is connected to a connecting pipe (122), and one end of the connecting pipe (122) is connected to a circular tube (123). The circular tube (123) is located outside the infrared ranging sensor (8), and several jet pipes (124) are connected to the circular tube (123).
7. The shell coating processing apparatus according to claim 6, characterized in that, One end of each of the jet pipes (124) is inclined toward the axis of the annular pipe (123).
8. The shell coating processing apparatus according to claim 7, characterized in that, A second fixed rod (125) is fixedly connected to the mobile frame (2), and a conical air guide hood (126) is fixedly connected to one end of the second fixed rod (125). The conical air guide hood (126) is located outside the jet pipe (124).