An online workpiece self-rotating plasma treatment device

Abstract

This application discloses an online workpiece rotation plasma treatment device, including a cabinet, a support platform, and a plasma jetting mechanism. A drive pulley and a driven pulley are rotatably mounted at both ends of the support platform, connected by a transmission belt; the drive pulley is driven to rotate by a geared motor. A connecting frame is provided on one side of the support platform, on which several jig rods are evenly rotatably mounted along its length. Each jig rod has a friction wheel that rubs against the transmission belt, and a jig for clamping the workpiece is fixed to the rod body. The plasma jetting mechanism is located to the side of the connecting frame and jets plasma towards the jig. This application uses the friction between the transmission belt and the friction wheel to drive the workpiece rotation, achieving continuous multi-surface treatment after a single clamping, eliminating the need for manual flipping and repeated clamping, significantly improving plasma treatment efficiency, shortening the production cycle, reducing labor costs, and meeting the needs of continuous production.

Description

Technical Field

[0001] This application relates to the technical field of pretreatment equipment for spraying, and more specifically, to an online workpiece rotation plasma treatment device. Background Technology

[0002] Plasma surface treatment technology is widely used in pretreatment processes in industrial fields such as spraying, bonding, and printing. By bombarding the surface of the workpiece with high-energy particles, it can effectively remove organic pollutants, activate the material surface, and improve the adhesion of coatings.

[0003] In related technologies, plasma treatment equipment typically employs fixed or translational workpiece stages. However, when processing complex workpieces with multifaceted structures, such as electronic casings, irregularly shaped components, and polyhedral parts, only one surface can be processed per clamping. After one side is activated, it must be manually removed, flipped, and repositioned before the other side can be processed. This frequent loading, unloading, and flipping significantly extends the production cycle, making it difficult to meet the demands of continuous production. Utility Model Content

[0004] To address the problem of low efficiency caused by the need for manual removal, flipping, and repositioning of workpieces after activation of one side in plasma treatment equipment using fixed or translational workpiece platforms, this application provides an online workpiece self-rotating plasma treatment device.

[0005] An online workpiece rotation plasma treatment device includes a cabinet. Inside the cabinet are a support platform and a plasma jetting mechanism. A driving pulley and a driven pulley are rotatably mounted at both ends of the support platform. A transmission belt is mounted on both the driving and driven pulleys. A gear reducer motor is installed on the support platform at the end where the driving pulley is located. The gear reducer motor is connected to the driving pulley to drive its rotation. A connecting frame is provided on one side of the support platform along the transmission belt. A plurality of fixture rods are rotatably mounted on the connecting frame. These fixture rods are evenly arranged along the length of the support platform. Each fixture rod is equipped with a friction wheel that rubs against the transmission belt. A fixture for fixing a workpiece is fixed on each fixture rod. The plasma jetting mechanism is located on one side of the connecting frame and jets plasma towards the fixtures.

[0006] Preferably, the support platform is rotatably provided with a plurality of pressure rollers, which are arranged along the length of the support platform and located inside the transmission belt, and the plurality of pressure rollers press against a section of the transmission belt that is in contact with the friction wheel.

[0007] Preferably, the plasma jetting mechanism includes a plasma jetter, a plasma generator, and a mounting frame. The mounting frame is fixed to the support platform. The plasma jetter is used to jet plasma, and there are multiple plasma jetters, all of which are fixed to the mounting frame. The multiple plasma jetters are arranged along the length of the support platform. The plasma generator is used to generate plasma and is located inside the cabinet. The number of plasma generators is the same as the number of plasma jetters, and each plasma generator is connected to one plasma jetter via an electrical cable and piping.

[0008] Preferably, the fixing frame includes a slide table and an adjustment assembly. The slide table is disposed on the support platform and its length extends along the length direction of the support platform. The slide table is provided with a sliding groove passing through both ends thereon, and a slider is slidably disposed in the sliding groove. The number of sliders and the number of adjustment assemblies are matched with the number of plasma ejectors. Each slider is connected to an adjustment assembly, each adjustment assembly is connected to a plasma ejector, and each slider is provided with a first locking member and is locked or unlocked to the slide table through the first locking.

[0009] Preferably, the adjustment assembly includes a vertical rod, a horizontal rod, an adjustment block, and a hinge shaft. The vertical rod is vertically mounted on the slider. The adjustment block has a first through slot and is fitted onto the vertical rod through the first through slot. A second locking member is provided on the adjustment block corresponding to the position of the first through slot, which locks or releases the adjustment block onto the vertical rod. The adjustment block also has a second through slot, through which the horizontal rod passes. A third locking member is provided on the adjustment block, which locks or releases the horizontal rod onto the adjustment block. The horizontal rod is perpendicular to the vertical rod. The hinge shaft is laterally positioned at one end of the horizontal rod near the connecting frame and is perpendicular to the horizontal rod. The plasma ejector is hinged to the hinge shaft, and a fourth locking member is provided on the plasma ejector, which locks or releases the plasma ejector to the hinge shaft through the fourth locking member.

[0010] The beneficial technical effects of this application are as follows: the drive wheel is rotated by a gear reduction motor, which in turn drives the transmission belt. The transmission belt drives the friction wheel to rotate through the contact friction force with the friction wheel, thereby causing the jig rod, the jig, and the workpiece on the jig to rotate. The workpiece can rotate automatically after a single clamping, thus processing multiple surfaces at once, eliminating the operation of flipping and clamping again, reducing manual intervention, improving the efficiency of plasma processing, shortening the production cycle, meeting the needs of continuous ring production, and saving labor costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of an online workpiece self-rotating plasma treatment device according to this embodiment.

[0012] Figure 2 This is a schematic diagram of the internal structure of an online workpiece rotation plasma treatment device according to this embodiment.

[0013] Figure 3 This is a schematic diagram of the plasma jetting mechanism in this embodiment.

[0014] Reference numerals: 1. Cabinet; 2. Support platform; 21. Driven pulley; 22. Driven pulley; 23. Transmission belt; 24. Gear reducer motor; 3. Connecting frame; 4. Fixture rod; 41. Friction wheel; 5. Fixture; 6. Pressure roller; 7. Plasma jet mechanism; 71. Plasma jetter; 711. Hinge block; 72. Plasma generator; 73. Fixture frame; 731. Slide table; 7311. Slide groove; 7312. Slider; 7313. First locking element; 732. Adjustment component; 7321. Vertical rod; 7322. Horizontal rod; 7323. Adjustment block; 7324. Hinge shaft; 7325. Second locking element; 7326. Third locking element; 7327. Fourth locking element. Detailed Implementation

[0015] The technical solutions of 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. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0016] Reference Figure 1 and Figure 2 An online workpiece rotation plasma treatment device includes a cabinet 1, inside which a support platform 2 is installed. At each end of the support platform 2, a driving pulley 21 and a driven pulley 22 are rotatably mounted via bearings. The driving pulley and driven pulley 22 are connected to a ring-shaped transmission belt 23, forming a closed-loop transmission system. A gear reducer motor 24 is fixed at one end of the support platform 2 where the driving pulley 21 is mounted. The output shaft of the gear reducer motor 24 is directly connected to the driving pulley 21. When the gear reducer motor 24 is started, it drives the driving pulley 21 to rotate, thereby driving the transmission belt 23 to circulate.

[0017] Reference Figure 2Adjacent to the transmission belt 23, a connecting frame 3 is fixedly installed on the support platform 2, extending along the length of the support platform 2. Several freely rotating jig rods 5 are mounted on the connecting frame 3 via bearings. These jig rods 5 are evenly spaced along the length of the support platform 2. Each jig rod 5 has a friction wheel 41 coaxially positioned near the transmission belt 23. The outer edges of these friction wheels 41 maintain close contact with the outer surface of the circulating transmission belt 23, and power transmission is achieved through friction between them. A jig 5 is fixed to the upper end of each jig rod 5. The jig 5 is used to securely clamp the workpiece to be processed, such as an electronic casing or an irregularly shaped structural component. The rotation of the jig rod 5 is achieved through friction transmission between the transmission belt 23 and the friction wheel 41, causing the jig 5 and the workpiece to rotate.

[0018] Reference Figure 2 To ensure sufficient and stable friction between the drive belt 23 and the friction wheel 41 and to prevent slippage, a row of rotatable pressure rollers 6 are installed on the support platform 2, inside the drive belt 23. These pressure rollers 6 are arranged along the length of the support platform 2 and are located in the section below the drive belt 23 that contacts the friction wheel 41. These pressure rollers 6 press against the inner side of the drive belt 23, reliably compressing the drive belt 23 in the contact area between the pressure rollers 6 and the upper friction wheel 41, thereby enhancing the efficiency and stability of friction transmission.

[0019] Reference Figure 2 and Figure 3 The cabinet 1 is also equipped with a plasma jetting mechanism 7 for jetting plasma onto the workpiece. The jetting mechanism includes a plasma jetter 71, a plasma generator 72, and a fixing frame 73. The fixing frame 73 is fixed on the support platform 2 and located on the side of the transmission belt 23 away from the connecting frame 3. There are multiple plasma jetters 71, all of which are fixed on the fixing frame 73 and arranged along the length of the support platform 2. The number of plasma generators 72 is equal to the number of plasma jetters, and multiple plasma generators 72 are fixed to the inner bottom of the cabinet 1. Each plasma generator 72 is powered by a dedicated cable and works gas is supplied through a gas pipeline, and is connected to a corresponding plasma jetter 71. The plasma generator 72 is responsible for generating high-energy plasma, and the plasma jetter 71 is used to jet plasma. The arrangement of multiple plasma jetters 71 enables simultaneous processing of workpieces on multiple fixtures 5, which is highly efficient. The plasma jetter 71 and plasma generator 72 are existing technologies and will not be described in detail in this application.

[0020] Reference Figure 2 and Figure 3Furthermore, the mounting bracket 73 includes a long strip slide 731 extending along the length of the support platform 2 and an adjustment assembly 732 connected to the slide 731 in the same vertical direction as the plasma ejector. The upper surface of the slide 731 has a groove 7311 extending through both ends. Within the groove 7311, a number of sliders 7312 matching the number of plasma ejectors 71 are slidably mounted, and these sliders 7312 can slide freely within the groove 7311. Each slider 7312 is provided with a first locking element 7313 for locking. The first locking element 7313 is a bolt. The slide block is provided with several threaded holes at the bottom of the slide groove 7311. The several threaded holes are evenly arranged along the length of the slide block. When the bolt is tightened, the bolt thread connects to the threaded hole, thereby fixing the slider 7312 to the slide table 731. When the bolt is loosened, the slider 7312 is allowed to move within the slide groove 7311. Each slider 7312 is connected to an adjustment component 732. Each adjustment component 732 is equipped with a plasma ejector. The spacing of the plasma ejector is adjusted by moving the slider 7312 to match workpieces of different sizes.

[0021] Reference Figure 2 and Figure 3Furthermore, the adjusting assembly 732 includes a vertical rod 7321, a horizontal rod 7322, an adjusting block 7323, and a hinge shaft 7324. The vertical rod 7321 is vertically mounted on the slider 7312. The adjusting block 7323 has a first through slot, and the adjusting block 7323 is fitted onto the vertical rod 7321 through the first through slot. A second locking member 7325 is provided on the adjusting block 7323 corresponding to the position of the first through slot, which locks or releases the adjusting block 7323 onto the vertical rod 7321. The adjusting block 7323 also has a second through slot, and the horizontal rod 7322 passes through the second through slot. A third locking member 7326 is provided on the adjusting block 7323, which locks the horizontal rod 7322 onto the vertical rod 7321. The rod 7322 is locked onto or unlocked by the adjusting block 7323. The horizontal rod 7322 is perpendicular to the vertical rod 7321. The hinge shaft 7324 is laterally positioned at one end of the horizontal rod 7322 near the connecting frame 3, and is perpendicular to the horizontal rod 7322. The plasma ejector 71 is hinged to the hinge shaft 7324, and a fourth locking element 7327 is provided on the plasma ejector. The plasma ejector 71 is locked or unlocked to the hinge shaft 7324 by the fourth locking element 7327. The height of the plasma ejector 71 relative to the workpiece is adjusted by sliding the adjusting block 7323 along the length of the vertical rod 7321. The horizontal rod 7322 is positioned within the second through slot of the adjusting block 7323. The distance between the plasma ejector 71 and the workpiece is adjusted by sliding to match different workpieces, resulting in high equipment compatibility. The second locking element 7325, the third locking element 7326, and the fourth locking element 7327 are also bolts. The adjusting block 7323 has two threaded holes respectively connecting the first and second through slots. Bolts are screwed into these threaded holes. Tightening the bolt in the threaded hole connecting the first through slot causes the bolt to pass into the first through slot and press against the vertical rod 7321, thus locking the adjusting block 7323 onto the vertical rod 7321. Loosening the bolt releases the adjusting element. Similarly, tightening the bolt in the threaded hole connecting the second through slot causes the bolt to pass into the second through slot and press against the horizontal rod 7322, thus locking the horizontal rod 7323 onto the vertical rod 7321. 322 is locked onto the adjusting block 7323. Loosening the bolt releases the locking of the crossbar 7322. The plasma ejector 71 is provided with a hinge block 711. The hinge block 711 is provided with a through hole. The hinge block 711 is fitted onto the hinge shaft 7324 through the through hole to achieve the hinge between the plasma ejector 71 and the hinge shaft 7324. The hinge block 711 is also provided with a threaded hole. The threaded hole is connected to the through hole. The bolt is placed in the threaded hole. By tightening the bolt, the bolt passes into the through hole and presses against the hinge shaft 7324 to lock the hinge block 711 and the hinge shaft 7324, thereby locking the plasma ejector 71. By loosening the bolt, the hinge block 711 is released to adjust the angle of the plasma ejector 71.

[0022] The implementation principle of the online workpiece rotation plasma treatment device disclosed in this application is as follows: The operator first clamps multiple workpieces onto corresponding fixtures 5. The gear reduction motor 24 is started, driving the drive pulley 21 to rotate, which in turn drives the transmission belt 23 to move continuously. Because the transmission belt 23 and each friction wheel 41 are tightly pressed together by the pressure roller 6, the friction generated by the belt movement drives all friction wheels 41 to rotate synchronously. The friction wheels 41 drive the rod 4 of the fixture 5 to rotate, ultimately causing the workpiece clamped on the fixture 5 to rotate stably around its own axis. Simultaneously, the plasma generator 72 is started, and the generated plasma is transported through pipelines to the corresponding plasma ejector 71, which sprays a high-energy particle stream towards the surface of the rotating workpiece. During the continuous rotation of the workpiece, each surface is sequentially exposed to the plasma beam, receiving uniform bombardment treatment, effectively removing contaminants and activating the surface. By loosening the bolts on slider 7312 to adjust the spacing of each ejector along its length, it is possible to accommodate workpieces with different arrangement densities. Loosening the bolts on adjusting block 7323 to adjust the height and loosening the bolts on crossbar 7322 to adjust the horizontal distance allows for precise control of the distance between the ejectors and different surfaces of the workpiece. Loosening the bolts on the ejectors to adjust the angle ensures the plasma beam optimally covers the complex contours of irregularly shaped workpieces. This allows for the automatic rotation of multiple surfaces of the workpiece in a single clamping operation, completely eliminating the tedious steps of repeated machine stops, manual flipping, and repositioning in traditional processes. This significantly reduces manual intervention and operation time, greatly improving the efficiency and continuity of plasma surface treatment, shortening the production cycle, and saving labor costs. It is particularly suitable for the large-scale continuous production needs of complex multi-faceted parts such as electronic casings.

[0023] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An in-line workpiece spin plasma processing apparatus, characterized by: The device includes a cabinet, inside which is a support platform and a plasma jetting mechanism. A driving pulley and a driven pulley are rotatably mounted at both ends of the support platform, and a transmission belt is mounted on both pulleys. A gear reducer motor is installed on the support platform at the end where the driving pulley is located. The gear reducer motor is connected to the driving pulley to drive its rotation. A connecting frame is provided on one side of the support platform along the transmission belt. Several jig rods are rotatably mounted on the connecting frame, evenly arranged along the length of the support platform. Each jig rod has a friction wheel that rubs against the transmission belt. A fixture for fixing a workpiece is fixed on each jig rod. The plasma jetting mechanism is located on one side of the connecting frame and jets plasma toward the jig rods.

2. An in-line workpiece spin plasma treatment apparatus as defined in claim 1 wherein: The support platform is rotatably equipped with several pressure rollers, which are arranged along the length of the support platform and located inside the transmission belt. The pressure rollers press against a section of the transmission belt that is in contact with the friction wheel.

3. The in-line workpiece spin-on plasma processing apparatus of claim 1 wherein: The plasma ejection mechanism includes a plasma ejector, a plasma generator, and a mounting frame. The mounting frame is fixed to the support platform. The plasma ejector is used to eject plasma, and there are multiple plasma ejectors, all of which are fixed to the mounting frame. The multiple plasma ejectors are arranged along the length of the support platform. The plasma generator is used to generate plasma and is located inside the cabinet. The number of plasma generators is the same as the number of plasma ejectors, and each plasma generator is connected to one plasma ejector via an electrical cable and piping.

4. An in-line workpiece spin-on plasma processing apparatus as defined in claim 3, wherein: The fixing frame includes a slide table and an adjustment assembly. The slide table is disposed on a support platform and its length extends along the length direction of the support platform. The slide table is provided with a sliding groove passing through both ends of it, and a slider is slidably disposed in the sliding groove. The number of sliders and the number of adjustment assemblies are matched with the number of plasma ejectors. Each slider is connected to an adjustment assembly, each adjustment assembly is connected to a plasma ejector, and each slider is provided with a first locking member and is locked or unlocked to the slide table through the first locking.

5. The online workpiece rotation plasma treatment equipment according to claim 4, characterized in that: The adjustment assembly includes a vertical rod, a horizontal rod, an adjustment block, and a hinge shaft. The vertical rod is erected on the slider. The adjustment block has a first through slot and is fitted onto the vertical rod through the first through slot. A second locking member is provided on the adjustment block corresponding to the position of the first through slot, which locks or releases the adjustment block onto the vertical rod. The adjustment block also has a second through slot, through which the horizontal rod passes. A third locking member is provided on the adjustment block, which locks or releases the horizontal rod onto the adjustment block. The horizontal rod is perpendicular to the vertical rod. The hinge shaft is horizontally positioned at one end of the horizontal rod near the connecting frame and is perpendicular to the horizontal rod. The plasma ejector is hinged to the hinge shaft, and a fourth locking member is provided on the plasma ejector, which locks or releases the plasma ejector to the hinge shaft through the fourth locking member.

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