Powder coating film plating machine

Abstract

The invention discloses a powder coating film plating machine, and relates to the technical field of film plating equipment, the powder coating film plating machine comprises a rack, a vacuum system, a sputtering system, a workpiece clamping system and a control system, the vacuum system, the sputtering system and the workpiece clamping system are all electrically connected with the control system, and the vacuum system comprises a vacuum box, a vacuum pipeline and a vacuum pump set; the vacuum box is rotatably connected with the rack in a matched mode, the vacuum pump set is communicated with the vacuum box body through a vacuum pipeline, the sputtering system comprises a gas supply assembly used for supplying inert gas, an arc cathode and a magnetic control cathode, the gas supply assembly is communicated with the vacuum box, the vacuum box is provided with an installation connector, and the workpiece clamping system comprises a charging barrel. And the charging barrel is rotationally arranged in the vacuum box. And an arc cathode and a magnetic control cathode of the coating machine are connected with the mounting interface of the vacuum box in a matching manner. And when different film layer performance requirements are met, the sputtering system does not need to be integrally replaced, and the cathode types only need to be quickly switched through the mounting interface, so that the equipment cost is reduced, and meanwhile, the operation process is simplified.

Description

Technical Field

[0001] The present invention relates to the technical field of coating equipment, and particularly to a powder coating coater. Background Art

[0002] A powder coating coater is a device specifically used for coating the surface of powder particles. It usually operates in a high-vacuum environment, and uses physical or chemical methods to deposit specific film layer materials on the surface of powder particles, thereby changing the physical and chemical properties of the powder or endowing it with new functional characteristics.

[0003] The working principle of a powder coating coater involves various coating technologies, such as DC magnetron sputtering coating technology, arc cathode ion coating technology, etc. During the coating process, the powder particles are placed in a rotating drum or a similar device in the vacuum chamber, and the film layer materials are deposited on the surface of the powder particles by means of sputtering, evaporation, or chemical reaction.

[0004] The deficiencies of existing coating equipment are as follows:

[0005] (1) Traditional equipment mostly uses a single sputtering technology (only magnetron sputtering or only arc coating), and cannot quickly switch the cathode type through a modular interface. When it is necessary to change the process for different film layer properties (such as conductive film and insulating film), the entire sputtering system needs to be replaced, resulting in high equipment costs and complex operations.

[0006] (2) Existing equipment mostly uses a fixed-angle vacuum chamber, and the powder is dispersed only by rotating in a single direction in the drum, which is prone to particle accumulation dead corners. Summary of the Invention

[0007] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a powder coating coater, which solves the problem that when it is necessary to change the process for different film layer properties, the entire sputtering system needs to be replaced, resulting in high equipment costs and complex operations.

[0008] To achieve the above object, the present invention provides a powder coating coater, including a frame, a vacuum system, a sputtering system, a workpiece clamping system, and a control system. The vacuum system, the sputtering system, and the workpiece clamping system are all electrically connected to the control system. The vacuum system includes a vacuum chamber, a vacuum pipeline, and a vacuum pump group. The vacuum chamber is rotationally and cooperatively connected to the frame. The vacuum pump group is connected to the vacuum chamber through the vacuum pipeline. The sputtering system includes a gas supply component for supplying inert gas, an arc cathode, and a magnetron cathode. The gas supply component is connected to the vacuum chamber. The vacuum chamber is provided with an installation interface, and both the arc cathode and the magnetron cathode are connected to the installation interface in cooperation. The workpiece clamping system includes a material cylinder, and the material cylinder is rotatably arranged in the vacuum chamber.

[0009] According to an embodiment of the present invention, the vacuum chamber includes a box body, a maintenance door and a chamber door. The maintenance door and the chamber door are respectively arranged on both sides of the box body in a matching manner. Horizontal central shafts are fixedly arranged at both ends of the box body, and the central shafts are rotatably connected with the frame in a matching manner. The barrel is rotatably connected with the maintenance door.

[0010] According to an embodiment of the present invention, the vacuum system further includes a worm gear reduction and reversing device and a handwheel. The worm gear reduction and reversing device is fixedly connected with the frame. The output end of the worm gear reduction and reversing device is coaxially and fixedly connected with the central shaft, and the handwheel is coaxially and fixedly connected with the input end of the worm gear reduction and reversing device.

[0011] According to an embodiment of the present invention, the vacuum chamber has a square conical structure, the chamber door has a frustum of a cone structure, and the installation interface is opened on the plane at the conical end of the front part of the chamber door.

[0012] According to an embodiment of the present invention, a plurality of windows arranged in a matrix are opened on the side part of the chamber door. The vacuum system further includes a first baffle. A number of first baffles are provided, and the first baffles are rotatably arranged at the ports corresponding to the windows.

[0013] According to an embodiment of the present invention, the vacuum system further includes an adjusting rotating shaft and an adjusting rotating rod. The adjusting rotating shaft is rotatably connected with the chamber door. One end of the adjusting rotating shaft is fixedly connected with the first baffle, and the other end of the adjusting rotating shaft is fixedly connected with the adjusting rotating rod.

[0014] According to an embodiment of the present invention, the workpiece clamping system further includes a second baffle. The second baffle is rotatably arranged in the vacuum chamber and is located at the port of the barrel.

[0015] According to an embodiment of the present invention, the workpiece clamping system further includes a rotating motor. The rotating motor is fixedly connected with the vacuum chamber, and the output end of the rotating motor is coaxially and fixedly connected with the barrel.

[0016] According to an embodiment of the present invention, the control system includes an electric control box and a PLC controller. The electric control box is fixedly connected with the frame, the PLC controller is fixedly arranged in the electric control box, and the vacuum system, the sputtering system and the workpiece clamping system are all electrically connected with the PLC controller.

[0017] According to an embodiment of the present invention, the control system further includes a touch screen. The touch screen is fixedly arranged on the side part of the electric control box and is electrically connected with the PLC controller.

[0018] The beneficial effects of the present invention compared with the prior art are:

[0019] 1. The arc cathode and the magnetron cathode of the coating machine are both connected to the installation interface of the vacuum chamber in a mating manner. When facing different performance requirements for the film layer, there is no need to replace the sputtering system as a whole. Only the cathode type needs to be quickly switched through the installation interface, which greatly reduces the equipment cost and simplifies the operation process at the same time.

[0020] 2. The vacuum chamber is rotationally connected to the frame in a mating manner, and the cartridge rotates inside the vacuum chamber. The powder in the cartridge is no longer dispersed only by rotating in a single direction, but through the synergistic effect of the rotation of the vacuum chamber and the rotation of the cartridge itself, effectively avoiding the appearance of dead corners of particle accumulation, ensuring uniform dispersion of the powder, and improving the coating quality.

[0021] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. Description of the Drawings

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 is a three-dimensional structural schematic diagram of a powder coating machine.

[0024] Figure 2 is a three-dimensional structural schematic diagram of the vacuum system in the present invention.

[0025] Figure 3 is a three-dimensional structural schematic diagram of the vacuum chamber in the present invention after being flipped 90 degrees.

[0026] Figure 4 is a structural sectional view of the vacuum chamber in the present invention.

[0027] Figure 5 is a front view of the structure of the vacuum chamber in the present invention.

[0028] The reference numerals include:

[0029] 1. Frame; 2. Vacuum system; 3. Sputtering system; 4. Workpiece clamping system; 5. Control system; 6. Vacuum chamber; 7. Vacuum pipeline; 8. Vacuum pump group; 9. Gas supply component; 10. Installation interface; 11. Cartridge; 12. Box body; 13. Maintenance door; 14. Box door; 15. Central shaft; 16. Worm gear reduction and reversing device; 17. Handwheel; 18. Window; 19. First baffle; 20. Adjusting rotating shaft; 21. Adjusting rotating rod; 22. Second baffle; 23. Rotating motor; 24. Electric control box; 25. Touch screen. Detailed Embodiments

[0030] Next, in combination with the accompanying drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] As Figures 1 to 5 shown, a powder coating film coater includes a frame 1, a vacuum system 2, a sputtering system 3, a workpiece clamping system 4, and a control system 5. The vacuum system 2, the sputtering system 3, and the workpiece clamping system 4 are all electrically connected to the control system 5. The vacuum system 2 includes a vacuum chamber 6, a vacuum pipeline 7, and a vacuum pump group 8. The vacuum chamber 6 is rotationally and cooperatively connected to the frame 1, and the entire vacuum chamber can be manually flipped 0-90 degrees along the central axis 15 and finally fixed in position, which is convenient for production and maintenance.

[0032] The vacuum pump group 8 is connected to the vacuum chamber 6 through the vacuum pipeline 7. The sputtering system 3 includes a gas supply component 9 for supplying inert gas, an arc cathode, and a magnetron cathode. The gas supply component 9 is connected to the vacuum chamber 6. The vacuum chamber 6 is provided with an installation interface 10, and both the arc cathode and the magnetron cathode are cooperatively connected to the installation interface 10. The workpiece clamping system 4 includes a cartridge 11, and the cartridge 11 is rotatably arranged in the vacuum chamber 6.

[0033] First, according to the process requirements for preparing the film layer of the product, select either the magnetron cathode or the arc cathode as the sputtering source. Then, the vacuum pump group 8 extracts the air in the vacuum chamber 6 through the vacuum pipeline 7 to create a high-vacuum environment in the vacuum chamber 6. Next, after filling the vacuum chamber 6 with inert gas (such as argon) to a constant pressure (such as 0.05-0.5 Pa) through the gas supply component 9 (such as a constant pressure instrument or a mass flow controller), a DC power supply with a certain power is applied to the magnetron cathode or the arc cathode.

[0034] When the magnetron cathode is selected as the sputtering source, magnetron sputtering technology is adopted. Magnetron sputtering technology is under the action of the high voltage of the positive and negative electrodes, and physical sputtering phenomenon occurs on the cathode target, so that the target material is deposited on the surface of the powder in the opposite drum to form a uniform thin film.

[0035] When the arc cathode is selected as the sputtering source, arc ion plating technology is adopted. Arc ion plating technology is under the action of the high voltage of the positive and negative electrodes, and by controlling the movement of the arc spot on the target surface, the target surface is melted and evenly evaporated to form a uniform thin film on the powder surface.

[0036] At the same time, the cartridge 11 rotates in the vacuum chamber 6, causing the powder workpieces to continuously tumble in the cartridge 11, so as to uniformly receive sputtering particles and achieve full-round coating.

[0037] The arc cathode and the magnetron cathode of the coating machine are both connected to the installation interface 10 of the vacuum chamber 6 in a mating manner. When facing different performance requirements for the film layer, there is no need to replace the sputtering system 3 as a whole. Only the cathode type needs to be quickly switched through the installation interface 10, which greatly reduces the equipment cost and simplifies the operation process at the same time.

[0038] The vacuum chamber 6 is rotatably connected to the frame 1 in a mating manner, and the cartridge 11 rotates inside the vacuum chamber 6. The powder in the cartridge 11 no longer relies solely on single-direction rotation and dispersion, but through the synergistic effect of the rotation of the vacuum chamber 6 and the rotation of the cartridge 11 itself, effectively avoiding the occurrence of dead corners of particle accumulation, ensuring uniform dispersion of the powder, and improving the coating quality.

[0039] Reference Figure 4 As shown, in some specific embodiments, the vacuum chamber 6 includes a box body 12, a maintenance door 13 and a box door 14. The maintenance door 13 and the box door 14 are respectively arranged on both sides of the box body 12 in a mating manner. Horizontal central shafts 15 are fixedly arranged at both ends of the box body 12, and the central shafts 15 are rotatably connected to the frame 1 in a mating manner. The cartridge 11 is rotatably connected to the maintenance door 13. The vacuum system 2 further includes a worm gear reduction and reversing device 16 and a handwheel 17. The worm gear reduction and reversing device 16 is fixedly connected to the frame 1, the output end of the worm gear reduction and reversing device 16 is coaxially and fixedly connected to the central shaft 15, and the handwheel 17 is coaxially and fixedly connected to the input end of the worm gear reduction and reversing device 16. When the handwheel 17 is rotated, the worm gear reduction and reversing device 16 drives the central shaft 15 to rotate, thereby driving the entire vacuum chamber 6 to rotate. This design facilitates the maintenance of the inside of the vacuum chamber 6, especially the cartridge 11 and related components. Through the worm gear reduction and reversing device 16, the rotation angle of the vacuum chamber 6 can be accurately controlled, the operation is labor-saving, and it is also convenient for multi-angle dispersion of the powder in the cartridge 11.

[0040] Reference Figure 3 As shown, in some specific embodiments, the vacuum chamber 6 has a square cone structure, the box door 14 has a frustum of a cone structure, and the installation interface 10 is opened on the front cone end plane of the box door 14. A plurality of windows 18 arranged in a matrix are opened on the side of the box door 14. The vacuum system 2 further includes a first baffle 19, an adjustment rotating shaft 20 and an adjustment rotating rod 21. A number of first baffles 19 are provided, and the first baffles 19 are rotatably arranged at the ports of the corresponding windows 18. The adjustment rotating shaft 20 is rotatably connected to the box door 14, one end of the adjustment rotating shaft 20 is fixedly connected to the first baffle 19, and the other end of the adjustment rotating shaft 20 is fixedly connected to the adjustment rotating rod 21. The rotation of the first baffle 19 is controlled by the adjustment rotating shaft 20 and the adjustment rotating rod 21.

[0041] The design of the square pyramid and frustum structures is beneficial to forming a more uniform air flow field and electric field distribution in the vacuum chamber 6, improving the sputtering coating effect. The setting of the window 18 and the adjustable first baffle 19 facilitates the operator to observe the coating situation in the chamber in real time and can adjust the opening and closing state of the window 18 as needed to control the light in the vacuum chamber 6.

[0042] Reference Figure 4 and Figure 5 As shown, in some specific embodiments, the workpiece clamping system 4 further includes a second baffle 22 and a rotating motor 23. The second baffle 22 is rotatably arranged in the vacuum chamber 6 and is located at the port of the cartridge 11. The rotating motor 23 is fixedly connected to the vacuum chamber 6, and the output end of the rotating motor 23 is coaxially and fixedly connected to the cartridge 11. The rotating motor 23 drives the cartridge 11 to rotate, and the second baffle 22 can prevent the powder workpiece from overflowing during the rotation process. Specifically, the rotating motor 23 provides power for the stable rotation of the cartridge 11 to ensure that the powder workpiece can continuously and uniformly receive sputtering coating. The setting of the second baffle 22 ensures the safety of the coating process and avoids the powder escaping and affecting the coating effect and the working environment.

[0043] Reference Figure 3 As shown, in some specific embodiments, the control system 5 includes an electric control box 24, a PLC controller touch screen. The electric control box 24 is fixedly connected to the frame 1, the PLC controller is fixedly arranged in the electric control box 24, and the vacuum system 2, the sputtering system 3 and the workpiece clamping system 4 are all electrically connected to the PLC controller. The touch screen 25 is fixedly arranged on the side of the electric control box 24 and is electrically connected to the PLC controller. The operator inputs instructions through the touch screen 25, and the PLC controller controls the coordinated operation of each system according to the preset program and feeds back the equipment operation data to the touch screen 25. The automatic control of the equipment is realized, improving the control accuracy and response speed. The operator can intuitively operate and monitor the equipment through the touch screen 25, reducing the operation difficulty and facilitating the timely discovery and handling of problems during the operation of the equipment.

[0044] To facilitate the understanding of the embodiments of this solution by those skilled in the art, the working principle of the embodiments of this solution will be described below in combination with a specific application scenario:

[0045] First, select a magnetron cathode or an arc cathode as the sputtering source according to the process requirements for preparing the film layer of the product. Then, the air in the vacuum chamber 6 is pumped out through the vacuum pump group 8 via the vacuum pipeline 7 to create a high-vacuum environment in the vacuum chamber 6. Next, an inert gas (such as argon) is filled into the vacuum chamber 6 through the gas supply component 9 (such as a constant pressure instrument or a mass flow controller) to a constant pressure (such as 0.05 - 0.5 Pa), and then a DC power supply with a certain power is applied to the magnetron cathode or the arc cathode.

[0046] Meanwhile, the rotary motor 23 starts, driving the cartridge 11 to rotate within the vacuum chamber 6. The powder particles placed within the cartridge 11 continuously tumble as the cartridge 11 rotates, uniformly receiving the particles sputtered from the magnetron cathode. The particles gradually deposit on the surface of the powder particles, forming a uniform insulating film.

[0047] During the film coating process, the operator can observe the film coating situation through the windows 18 arranged in a matrix on the side of the chamber door 14.

[0048] After the film coating is completed, the power supply of the sputtering system 3 and the gas supply assembly 9 are turned off. After the pressure within the vacuum chamber 6 returns to atmospheric pressure, the chamber door 14 and the maintenance door 13 are opened. The residual powder within the cartridge 11 and the impurities generated by sputtering inside the vacuum chamber 6 are cleaned.

[0049] If it is necessary to change the type of film layer subsequently, the cathode required can be replaced again through the installation interface 10. Meanwhile, if it is necessary to repair and maintain components such as the cartridge 11 and the rotary motor 23 inside the vacuum chamber 6, the operator can rotate the handwheel 17 to drive the central shaft 15 to rotate through the worm gear reduction and reversing device 16, flipping the entire vacuum chamber 6 by 0 - 90 degrees along the central shaft 15 and fixing it in a suitable position for convenient maintenance operations. During the entire operation process, the touch screen 25 of the control system 5 continuously displays the operating data of the device, such as the vacuum degree, gas pressure, power supply power, etc., facilitating the operator to monitor the device status and promptly discover and handle possible problems.

[0050] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above - mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any perspective, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A powder coating coating machine, characterized in that: The invention comprises a frame (1), a vacuum system (2), a sputtering system (3), a workpiece clamping system (4) and a control system (5); the vacuum system (2), the sputtering system (3) and the workpiece clamping system (4) are all electrically connected to the control system (5); the vacuum system (2) comprises a vacuum box (6), a vacuum pipe (7) and a vacuum pump group (8); the vacuum box (6) is rotatably connected to the frame (1); the vacuum pump group (8) is connected to the vacuum box (6) through the vacuum pipe (7); the sputtering system (3) comprises a gas supply component (9) for supplying inert gas, an arc cathode and a magnetron cathode; the gas supply component (9) is connected to the vacuum box (6); the vacuum box (6) is provided with a mounting interface (10); the arc cathode and the magnetron cathode are both connected to the mounting interface (10); the workpiece clamping system (4) comprises a barrel (11); the barrel (11) is rotatably arranged in the vacuum box (6).

2. A powder coating coating machine according to claim 1, characterized in that: The vacuum box (6) comprises a box body (12), an inspection door (13) and a box door (14); the inspection door (13) and the box door (14) are respectively arranged on both sides of the box body (12); a central axis (15) in a horizontal state is fixedly arranged at both ends of the box body (12); the central axis (15) is rotatably connected to the frame (1); and the barrel (11) is rotatably connected to the inspection door (13).

3. A powder coating machine according to claim 2, characterized in that: The vacuum system (2) further comprises a worm gear reduction commutator (16) and a hand wheel (17); the worm gear reduction commutator (16) is fixedly connected to the frame (1); the output end of the worm gear reduction commutator (16) is coaxially fixedly connected to the central axis (15); and the hand wheel (17) is coaxially fixedly connected to the input end of the worm gear reduction commutator (16).

4. A powder coating machine according to claim 2, characterized in that: The vacuum box (6) is in a square cone-shaped structure, the box door (14) is in a frustum-shaped structure, and the installation interface (10) is provided on the front cone end plane of the box door (14).

5. A powder coating coating machine according to claim 4, characterized in that: The side of the box door (14) is provided with a plurality of viewing windows (18) arranged in a matrix. The vacuum system (2) further comprises a first baffle (19). A plurality of first baffles (19) are provided, and the first baffles (19) are rotatably arranged at the ports corresponding to the viewing windows (18).

6. A powder coating coating machine according to claim 5, characterized in that: The vacuum system (2) further comprises an adjusting shaft (20) and an adjusting rod (21); the adjusting shaft (20) is rotationally connected to the box door (14); one end of the adjusting shaft (20) is fixedly connected to the first baffle (19); and the other end of the adjusting shaft (20) is fixedly connected to the adjusting rod (21).

7. The powder coating machine according to claim 1, characterized in that: The workpiece clamping system (4) further comprises a second baffle (22), which is rotatably arranged in the vacuum box (6) and is located at the port of the barrel (11).

8. The powder coating machine according to claim 7, characterized in that: The workpiece clamping system (4) further comprises a rotating motor (23), wherein the rotating motor (23) is fixedly connected to the vacuum box (6), and an output end of the rotating motor (23) is coaxially fixedly connected to the barrel (11).

9. The powder coating machine according to claim 1, characterized in that: The control system (5) comprises an electric control box (24) and a PLC controller, wherein the electric control box (24) is fixedly connected to the frame (1), the PLC controller is fixedly arranged in the electric control box (24), and the vacuum system (2), the sputtering system (3) and the workpiece clamping system (4) are all electrically connected to the PLC controller.

10. A powder coating coating machine according to claim 9, characterized in that: The control system (5) further comprises a touch screen (25), wherein the touch screen (25) is fixedly arranged on the side of the electric control box (24) and is electrically connected to the PLC controller.

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