Numerical control powder spraying equipment

Abstract

The utility model discloses numerical control powder spraying equipment. The powder spraying device comprises a powder spraying chamber, one end of the powder spraying chamber is provided with a hook used for hanging a workpiece, the hook can movably move towards the interior or the exterior of the powder spraying chamber, one end of the hook is provided with a second driving device enabling the hook to rotate, and one end of the second driving device is provided with a first driving device enabling the second driving device to move leftwards and rightwards; a sensing device for sensing a workpiece is assembled at an inlet of the powder spraying chamber; the device further comprises at least one powder spraying mechanism, the powder spraying mechanism is arranged in the powder spraying chamber and comprises an electrostatic spray gun, a first sliding rail and a second sliding rail, the electrostatic spray gun is arranged on the first sliding rail in a left-right moving mode, and a third driving device enabling the electrostatic spray gun to act is assembled at one end of the electrostatic spray gun. The first sliding rail is arranged on the second sliding rail in an up-down movable mode, and the first sliding rail is provided with a fourth driving device enabling the first sliding rail to act.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic spraying technology, and in particular to a CNC powder spraying equipment. Background Technology

[0002] In modern industrial production, powder coating is an important surface treatment method widely used in many fields, such as the coating processes of hardware products, home appliances, and automotive parts. Traditional powder coating operations mainly rely on manual operation of handheld spray guns to spray the workpieces.

[0003] Currently, manual spraying has many drawbacks. First, in terms of spraying precision, it is difficult to maintain a high degree of consistency and stability in manual operation. Differences in operating habits among different workers, as well as fatigue levels of the same worker after prolonged work, can easily lead to uneven spraying thickness and inconsistent coating surface quality, affecting the appearance and protective performance of the workpiece. For example, on some complex-shaped workpieces, manual spraying is prone to missed areas or overspraying, which not only wastes powder but also requires subsequent repairs, increasing production costs and time.

[0004] Secondly, from the perspective of work efficiency, manual spraying is relatively slow and cannot meet the demands of large-scale, high-efficiency modern production. Workers need to constantly adjust the position and angle of the spray gun to spray each workpiece individually, which makes it impossible to achieve a continuous and rapid automated production process, thus limiting the overall production capacity improvement.

[0005] Furthermore, manual spraying poses certain health risks to workers. The powder spraying process generates a large amount of dust and volatile organic compounds. Long-term exposure to such a working environment can easily lead to occupational diseases such as respiratory and skin diseases, as well as safety risks such as accidental inhalation or contact with the eyes of the powder. Utility Model Content

[0006] In view of the problems existing in the prior art, the present invention provides a CNC powder spraying equipment, which can effectively solve the problems existing in the prior art.

[0007] The technical solution of this utility model is:

[0008] According to one aspect of the present invention, the invention includes: a powder spraying chamber, one end of which is provided with a hook for suspending a workpiece, and the hook is movably movable toward the inside or outside of the powder spraying chamber; one end of the hook is equipped with a second driving device for rotating the hook; one end of the second driving device is equipped with a first driving device for moving the hook to the left or right; and the inlet of the powder spraying chamber is equipped with a sensing device for sensing the workpiece.

[0009] It also includes at least one powder spraying mechanism, which is disposed in the powder spraying chamber. The powder spraying mechanism includes an electrostatic spray gun, a first slide rail, and a second slide rail. The electrostatic spray gun is movable left and right on the first slide rail. One end of the electrostatic spray gun is equipped with a third driving device to activate it. The first slide rail is movable up and down on the second slide rail. The first slide rail is equipped with a fourth driving device to activate it. When the sensing device detects that the workpiece has entered the powder spraying chamber, it activates the powder spraying mechanism to spray the workpiece.

[0010] Furthermore, the first driving device is disposed above the powder spraying chamber, and the upper end of the powder spraying chamber is provided with a notch for avoiding the hook.

[0011] Furthermore, it also includes several support frames, which are laterally spaced around the periphery of the powder spraying chamber. The first driving device is a screw slide, which is assembled on the several support frames.

[0012] Furthermore, it also includes a connecting plate, the second driving device is a motor, one end of the motor is fixedly connected to the slide of the screw slide, the other end is fixedly connected to the connecting plate, and the output end of the motor passes through the connecting plate and is fixedly assembled with the hook.

[0013] Furthermore, the sensing device is an infrared sensor, with an infrared emitting tube at one end of the powder spraying chamber and an infrared receiving tube at the opposite end.

[0014] Furthermore, both the third and fourth drive devices are cylinders.

[0015] Furthermore, the entrance and exit of the powder spraying chamber are both equipped with sliding doors.

[0016] Furthermore, multiple powder spraying mechanisms are provided, and the multiple powder spraying mechanisms are symmetrically arranged in the powder spraying chamber.

[0017] By adopting the above technical solution, the beneficial effects of this utility model compared with the prior art are as follows:

[0018] To address the issue of insufficient precision in manual spraying, this invention utilizes an automated drive device to achieve precise control, ensuring uniform coating coverage and effectively preventing missed or overspraying, thereby improving the appearance and protective performance of the workpiece. Addressing the inefficiency of manual spraying, the equipment enables automated continuous operation, significantly shortening the spraying time for individual workpieces and meeting the demands of large-scale production. Furthermore, the automated spraying method reduces the risk of operators being exposed to dust and volatile organic compounds, minimizing environmental pollution. It also boasts stable and reliable performance, is easy to maintain, and reduces long-term operating costs. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is an enlarged structural diagram of point A in this utility model;

[0022] Figure 3 This is an enlarged structural diagram of point B in this utility model;

[0023] Figure 4 This is an enlarged structural diagram of point C in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the powder spraying chamber in this utility model;

[0025] Figure 6 This is a schematic diagram of the powder spraying mechanism in this utility model;

[0026] In the diagram: Powder spraying chamber-1, notch-11, entrance-12, sliding door-13, exit-14, support frame-2, first drive device-3, slide table-31, second drive device-4, connecting plate-5, hook-6, sensing device-7, infrared emitting tube-71, powder spraying mechanism-8, electrostatic spray gun-81, movable plate-82, first slide rail-83, third drive device-84, second slide rail-85, fourth drive device-86. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are only for illustrating the present invention and do not limit the scope of the present invention. Similarly, the following embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0028] like Figures 1 to 6 As shown, this solution provides a CNC powder spraying equipment.

[0029] Please see Figures 1 to 6The system includes: a powder spraying chamber 1, one end of which is provided with a hook 6 for suspending a workpiece (not shown), and the hook 6 can move movably inward or outward from the powder spraying chamber 1. One end of the hook 6 is equipped with a second driving device 4 for rotating it, and one end of the second driving device 4 is equipped with a first driving device 3 for moving it left and right. Specifically, the first driving device 3 is located above the powder spraying chamber 1, and the upper end of the powder spraying chamber 1 has a notch 11 for avoiding the hook 6. It also includes several support frames 2, which are horizontally spaced around the outer periphery of the powder spraying chamber 1. The first driving device 3 is a screw slide, which is mounted on the support frames 2. The screw slide is a direct application of existing technology, and its principle will not be elaborated here. It also includes a connecting plate 5. The second driving device 4 is a motor, one end of which is fixedly connected to the slide 31 of the screw slide, and the other end is fixedly connected to the connecting plate 5. The output end of the motor passes through the connecting plate 5 and is fixedly assembled with the hook 6. The motor is a direct application of existing technology, and its principle will not be elaborated here. Preferably, multiple powder spraying mechanisms 8 are provided, and the multiple powder spraying mechanisms 8 are symmetrically arranged in the powder spraying chamber 1.

[0030] Please see Figures 1 to 6 It also includes at least one powder spraying mechanism 8, which is disposed in the powder spraying chamber 1. The powder spraying mechanism 8 includes an electrostatic spray gun 81, a first slide rail 83, and a second slide rail 85. The electrostatic spray gun 81 is movable left and right on the first slide rail 83. One end of the electrostatic spray gun 81 is equipped with a third drive device 84 to actuate it. The first slide rail 83 is movable up and down on the second slide rail 85. The first slide rail 83 is equipped with a fourth drive device 86 to actuate it. Both the third drive device 84 and the fourth drive device 86 are cylinders. The cylinders and the electrostatic spray gun 81 are direct applications of existing technology, and their principles will not be elaborated here.

[0031] Please see Figures 1 to 6 The powder spraying chamber 1 is equipped with a sensing device 7 for detecting the workpiece at its inlet. The sensing device 7 is an infrared sensor. An infrared emitting tube 71 is located at one end of the powder spraying chamber 1, and an infrared receiving tube (not shown) is located at the opposite end face of the emitting tube 71. When the sensing device 7 detects that a workpiece has entered the powder spraying chamber 1, the powder spraying mechanism 8 is activated to spray the workpiece. The infrared sensor is a direct application of existing technology, and its principle will not be elaborated here.

[0032] Please see Figure 1 and Figure 5 The powder spraying chamber 1 is equipped with sliding doors 13 at both the inlet 12 and the outlet 14. The sliding doors 13 are a direct application of existing technology, and their principle will not be described in detail here.

[0033] The first drive unit 3, the second drive unit 4, the third drive unit 84, the fourth drive unit 86, the electrostatic spray gun 81, and the sliding door 13 are all electrically connected to the PLC.

[0034] Working principle:

[0035] The operator suspends the workpiece to be sprayed on the hook 6 located outside the entrance of the powder spraying chamber 1, starts the CNC powder spraying equipment, and the PLC controls the first drive device 3 to move, driving its slide table 31, together with the second drive device 4, the connecting plate 5 and the hook 6, to move along the left and right directions of the support frame 2.

[0036] When the workpiece moves into the entrance area of ​​the powder spraying chamber 1, the beam emitted by the infrared emitting tube 71 of the sensing device 7 is blocked by the workpiece, causing the infrared receiving tube to be unable to receive the signal normally. This blocking signal is transmitted to the PLC. The PLC uses this signal as the trigger condition for "the workpiece has entered the spraying area". After receiving the sensing signal, the PLC sends a start command to the powder spraying mechanism 8: controlling the fourth drive device 86 to move the entire first slide rail 83 vertically up and down along the second slide rail 85, so that the electrostatic spray gun 81 reaches the set spraying height starting point. Controlling the third drive device 84 to move the electrostatic spray gun 81 horizontally left and right along the first slide rail 83 to reach the set spraying starting position. Simultaneously or according to a preset sequence, the PLC starts the electrostatic spray gun 81, which sprays powder on one side of the workpiece. As needed, the PLC controls the second drive device 4 (motor) to rotate, driving the hook 6 and the workpiece to rotate, causing the workpiece to flip, and the electrostatic spray gun 81 to spray the other side.

[0037] The PLC controls synchronously or alternately according to a preset program:

[0038] The first driving device 3 drives the workpiece to move left and right in the powder spraying chamber at a set speed.

[0039] The second drive unit 4 drives the workpiece to rotate as needed, ensuring that the electrostatic spray gun 81 can cover all surfaces of the workpiece, especially complex surfaces.

[0040] The third drive unit 84 controls the spray gun to move left and right in the horizontal direction or along a specific trajectory.

[0041] The fourth drive unit 86 controls the spray gun to move vertically up and down as needed, adapting to changes in workpiece height.

[0042] When the PLC determines that the preset spraying program (including travel distance, time, coating thickness model, etc.) has been completed, it controls the electrostatic spray gun 81 to stop spraying powder.

[0043] The PLC controls the first drive unit 3 to continue moving, moving the coated workpiece out of the powder spraying chamber 1 through the outlet 14 at the other end of the powder spraying chamber 1.

[0044] The operator removes the finished workpiece outside exit 14 and attaches a new workpiece to be painted.

[0045] The PLC controls the sliding door 13 to automatically open when the workpiece enters or exits, and to keep it closed during the spraying process in order to maintain the airtightness of the powder spraying chamber and reduce the escape of dust.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A CNC powder coating equipment, characterized in that, include: A powder spraying chamber (1) is provided at one end with a hook (6) for suspending workpieces, and the hook (6) can be moved movably inward or outward from the powder spraying chamber (1). A second drive device (4) for rotating the hook (6) is assembled at one end, and a first drive device (3) for moving the second drive device (4) to the left and right is assembled at one end. A sensing device (7) for sensing workpieces is assembled at the entrance of the powder spraying chamber (1). It also includes at least one powder spraying mechanism (8), which is disposed in the powder spraying chamber (1). The powder spraying mechanism (8) includes an electrostatic spray gun (81), a first slide rail (83) and a second slide rail (85). The electrostatic spray gun (81) is disposed on the first slide rail (83) and can move left and right. One end of the electrostatic spray gun (81) is equipped with a third driving device (84) for its operation. The first slide rail (83) is disposed on the second slide rail (85) and can move up and down. The first slide rail (83) is equipped with a fourth driving device (86) for its operation. When the sensing device (7) senses that the workpiece has entered the powder spraying chamber (1), the powder spraying mechanism (8) is activated to spray the workpiece.

2. The CNC powder coating equipment as described in claim 1, characterized in that, The first driving device (3) is located above the powder spraying chamber (1), and the upper end of the powder spraying chamber (1) is provided with a notch (11) for avoiding the hook (6).

3. The CNC powder coating equipment as described in claim 2, characterized in that, It also includes several support frames (2), which are horizontally spaced on the outer periphery of the powder spraying chamber (1). The first driving device (3) is a screw slide, which is assembled on several support frames (2).

4. The CNC powder coating equipment as described in claim 3, characterized in that, It also includes a connecting plate (5), the second driving device (4) is a motor, one end of the motor is fixedly connected to the slide (31) of the screw slide, the other end is fixedly connected to the connecting plate (5), and the output end of the motor passes through the connecting plate (5) and is fixedly assembled with the hook (6).

5. The CNC powder coating equipment as described in claim 1, characterized in that, The sensing device (7) is an infrared sensor. An infrared emitting tube (71) is provided at one end of the powder spraying chamber (1), and an infrared receiving tube is provided at the other end opposite to the infrared emitting tube (71).

6. The CNC powder coating equipment as described in claim 1, characterized in that, Both the third drive device (84) and the fourth drive device (86) are cylinders.

7. The CNC powder coating equipment as described in claim 1, characterized in that, The powder spraying chamber (1) is equipped with sliding doors (13) at both the entrance (12) and the exit (14).

8. The CNC powder coating equipment as described in claim 1, characterized in that, Multiple powder spraying mechanisms (8) are provided, and multiple powder spraying mechanisms (8) are symmetrically arranged in the powder spraying chamber (1).

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