A sapphire abrasive impurity removal and screening apparatus

Abstract

The application relates to a sapphire abrasive impurity removing and screening device, which comprises a rack and a conveying belt arranged on the rack, a positioning frame is arranged above the conveying belt, an electrostatic roller is rotatably arranged on the positioning frame, a driving device for driving the electrostatic roller to rotate is further arranged on the positioning frame, a door-shaped frame is further arranged on the rack, a lifting mechanism for driving the positioning frame to move up and down is arranged on the door-shaped frame; a scraping guide groove is arranged on one side of the positioning frame, and the scraping guide groove is provided with a scraper which is in contact with the outer surface of the electrostatic roller. The electrostatic roller is arranged, and non-magnetic light fine impurities such as wood chips, fibers and dust mixed in the abrasives are actively adsorbed during the conveying process.

Description

Technical Field

[0001] This utility model relates to the field of sapphire abrasive production technology, and in particular to a sapphire abrasive impurity removal and screening device. Background Technology

[0002] Sapphire abrasive materials are widely used in high-end abrasive manufacturing due to their excellent properties such as high temperature resistance, corrosion resistance, and low porosity. Effective removal of impurities is crucial for ensuring product quality during the abrasive preparation process.

[0003] Existing technologies, such as Chinese patent CN217222431U, disclose a multi-stage screening and impurity removal device. The multi-stage screening chamber can achieve the classification of abrasives with different particle sizes. However, for fine impurities similar to the particle size of the abrasive, such as wood chips, screening alone is not effective in removing them, which may affect the final quality of the abrasive. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a sapphire abrasive impurity removal and screening device.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a sapphire abrasive impurity removal and screening device, including a frame and a conveyor belt set on the frame, a positioning frame above the conveyor belt, an electrostatic drum rotatably mounted on the positioning frame, a driving device for driving the electrostatic drum to rotate on the positioning frame, a portal frame on the frame, a lifting mechanism for driving the positioning frame to move up and down on the portal frame; a scraping guide groove is provided on one side of the positioning frame, and the scraping guide groove has a scraper that abuts against the outer surface of the electrostatic drum.

[0006] Preferably, both the scraper guide trough and the scraper are inclined, with the lower end being the discharge end. A receiving box with an open top is provided on one side of the frame, and the discharge end is located above the receiving box. The scraper guide trough is fixedly connected to the positioning frame via a connecting rod, so that it can rise and fall synchronously with the positioning frame.

[0007] Preferably, the frame is provided with a support plate, and the receiving box is mounted on the support plate.

[0008] Preferably, the scraping guide groove includes a bottom plate, a rear baffle, and a side plate. The side plate and the scraper are located on both sides of the bottom plate, and the rear baffle is located at the higher end of the scraping guide groove, and together with the bottom plate, the scraper, and the side plate, they form a channel for guiding impurities.

[0009] Preferably, the lifting mechanism includes a servo electric cylinder installed on the upper end of the portal frame. The piston rod of the servo electric cylinder slides downward through the upper end of the portal frame and is connected to the positioning frame. The upper end of the positioning frame is provided with a guide shaft that passes through the upper end of the portal frame.

[0010] Preferably, the upper end of the guide shaft is provided with a limiting plate to prevent the guide shaft from coming out of the gate frame, thus providing a safety protection function.

[0011] Preferably, the driving device includes a drive motor, which is fixed to one side of the positioning frame by a mounting plate, and its output shaft is connected to the rotating shaft of the electrostatic roller to drive it to rotate.

[0012] Preferably, a vibrating motor is installed on the bottom plate of the scraper guide trough. When the vibrating motor is working, it can effectively prevent lightweight, damp impurities from adhering to or clogging the guide trough, ensuring that the impurities slide smoothly into the receiving box.

[0013] The beneficial effects of this application are as follows: 1. By setting a high-voltage electrostatic roller, this application actively adsorbs non-magnetic, lightweight, and fine impurities such as sawdust, fiber, and dust mixed in with the abrasive during the conveying process, solving the problem that traditional screening methods are ineffective in removing impurities of similar particle size, and significantly improving the purity and quality of the abrasive.

[0014] 2. The inclined scraping guide groove and the scraper in close contact with it can continuously and thoroughly scrape off the adsorbed impurities when the electrostatic drum rotates, and automatically guide them to the collection box with the help of the inclined structure, so as to achieve efficient stripping and centralized collection of impurities and avoid secondary pollution.

[0015] 3. The lifting mechanism, consisting of a servo electric cylinder and a guide shaft, can precisely adjust the distance between the electrostatic roller and the material surface, thereby flexibly adapting to material layers of different thicknesses or particle sizes, ensuring stable electrostatic adsorption effect, and improving the equipment's adaptability to different process requirements.

[0016] 4. A vibration motor is installed at the bottom of the scraper guide trough to effectively prevent light impurities from adhering or accumulating in the trough, ensuring smooth discharge of impurities and further improving the continuity of impurity removal and the stability of equipment operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a structural schematic diagram of the frame of this utility model.

[0019] Figure 3 This is a schematic diagram of the scraping guide groove of this utility model.

[0020] Figure 4 This is a schematic diagram of the structure of the electrostatic roller of this utility model.

[0021] Illustration markings: 1. Frame, 2. Conveyor belt, 3. Gantry frame, 4. Positioning frame, 5. Servo electric cylinder, 51. Guide shaft, 52. Limiting plate, 6. Electrostatic roller, 61. Drive motor, 62. Mounting plate, 7. Scraper guide trough, 71. Scraper, 72. Base plate, 73. Side plate, 74. Rear baffle, 75. Connecting rod, 8. Receiving box, 81. Support plate, 9. Vibration motor. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] Please see Figure 1-4 This utility model provides a sapphire abrasive impurity removal and screening device, including a frame 1 and a conveyor belt 2 mounted on the frame 1. A positioning frame 4 is provided above the conveyor belt 2, and an electrostatic roller 6 is rotatably mounted on the positioning frame 4. The positioning frame 4 is also provided with a drive device for driving the electrostatic roller 6 to rotate. A portal frame 3 is also provided on the frame 1, and a lifting mechanism for driving the positioning frame 4 to move up and down is provided on the portal frame 3. A scraping guide groove 7 is provided on one side of the positioning frame 4. The scraping guide groove 7 has a scraper 71 that abuts against the outer surface of the electrostatic roller 6. The scraper 71 is used to scrape off impurities adsorbed on the surface of the electrostatic roller 6.

[0024] The conveyor belt 2 can be an existing conveyor belt, which is existing technology, and its specific structure will not be described in detail here. Both the scraper guide trough 7 and the scraper 71 are inclined. The lower end of the scraper guide trough 7 is the discharge end. A receiving box 8 with an open top is also provided on one side of the frame 1. The discharge end is located above the receiving box 8, and the material falling from the discharge end is located inside the receiving box 8. The scraper guide trough 7 is connected to the positioning frame 4 via a connecting rod 75, allowing it to rise and fall synchronously with the positioning frame 4. One end of the connecting rod 75 is welded to the positioning frame 4, and the other end is welded to the bottom of the scraper guide trough 7. A support plate 81 is provided on the frame 1, and the receiving box 8 is mounted on the support plate 81. The angle between the scraper guide trough 7 and the horizontal plane is 35 degrees.

[0025] Combination Figure 1 , Figure 3 and Figure 4 As shown. The scraper guide trough 7 also includes a base plate 72, a rear baffle 74, and a side plate 73. The side plate 73 and the scraper 71 are located on both sides of the base plate 72. The rear baffle 74 is located at the higher end of the scraper guide trough 7 and is connected to the base plate 72, the scraper 71, and the side plate 73. The angle between the scraper 71 and the base plate 72 is 123 degrees. The scraper 71, the base plate 72, the rear baffle 74, and the side plate 73 together form a channel for guiding impurities.

[0026] Combination Figure 1 As shown. The lifting mechanism includes a servo electric cylinder 5 mounted on the upper end of the portal frame 3. The piston rod of the servo electric cylinder 5 slides through the upper end of the portal frame 3 and its end is connected to the positioning frame 4. The upper end of the positioning frame 4 is provided with a guide shaft 51 that passes through the upper end of the portal frame 3. A limiting plate 52 is provided at the upper end of the guide shaft 51 to prevent the guide shaft from coming out of the portal frame, thus providing a safety protection function. There are two guide shafts 51, located on both sides of the piston rod of the servo electric cylinder 5. By setting the guide shafts 51, the stability of the lifting process of the positioning frame 4 is ensured. It should be noted that the parts not described in detail in this application are all prior art.

[0027] Furthermore, the positioning frame 4 is gate-shaped, and the driving device includes a drive motor 61. The output shaft of the drive motor 61 is connected to the electrostatic roller 6. The electrostatic roller 6 has rotating shafts at both ends, one of which is rotatably connected to the positioning frame 4, and the other is connected to the output shaft of the drive motor 61 via a coupling. A mounting plate 62 is provided on one side of the positioning frame 4, and the drive motor 61 is mounted on the mounting plate 62. An electrostatic generator is also included on one side of the frame 1. The electrostatic generator is connected to the electrostatic roller 6, allowing its surface to carry high-voltage static electricity to adsorb light, fine impurities in the abrasive.

[0028] Of course, this utility model is not limited to the embodiments described above. Several other embodiments based on the design concept of this utility model are also provided below.

[0029] For example, in other embodiments, unlike the embodiments described above, the bottom plate 72 of the scraper guide trough 7 is equipped with a vibration motor 9. It also includes a control unit mounted on the frame 1, the control unit comprising a PLC controller, which is electrically connected to the servo electric cylinder 5, the vibration motor 9, the drive motor 61, and the electrostatic generator.

[0030] For example, in other embodiments, unlike the embodiments described above, the electrostatic generator is electrically connected to the electrostatic roller 6 via a conductive slip ring. The stator portion of the conductive slip ring is fixed to the positioning frame by a bracket; its rotor portion is coaxially connected to the rotating shaft of the electrostatic roller 6. The output cable of the electrostatic generator is connected to the stator input terminal of the conductive slip ring, while the rotor output terminal is connected to the electrodes inside the electrostatic roller 6 via a short cable. The conductive slip ring is prior art and will not be described in detail here.

[0031] The working principle of this application is as follows: The servo electric cylinder 5 adjusts the positioning frame 4 to a suitable height, bringing the surface of the electrostatic roller 6 close to the abrasive layer. The drive motor 61 drives the electrostatic roller 6 to rotate slowly, and the surface of the electrostatic roller 6 carries a high voltage static charge. When the abrasive on the conveyor belt 2 passes under the roller, the light impurities are adsorbed onto the roller surface. As the roller rotates, these impurities are scraped off by the scraper 71 into the inclined scraper guide trough 7. The vibrating motor 9, mounted on the base plate 72, starts intermittently, assisting the impurities to slide smoothly down the guide trough, and finally fall from the discharge end into the receiving box 8, completing the impurity removal process.

[0032] It should be noted that the above embodiments are only used to illustrate the present utility model, but the present utility model is not limited to the above embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A sapphire abrasive impurity removal and screening device, comprising a frame (1) and a conveyor belt (2) disposed on the frame (1), characterized in that, A positioning frame (4) is provided above the conveyor belt (2), and an electrostatic roller (6) is rotatably provided on the positioning frame (4). A drive device for driving the electrostatic roller (6) to rotate is also provided on the positioning frame (4). A portal frame (3) is also provided on the frame (1), and a lifting mechanism for driving the positioning frame (4) to move up and down is provided on the portal frame (3). The positioning frame (4) has a scraper guide groove (7) on one side, and the scraper guide groove (7) has a scraper (71) that abuts against the outer surface of the electrostatic roller (6).

2. The sapphire abrasive impurity removal and screening equipment according to claim 1, characterized in that, Both the scraper guide groove (7) and the scraper (71) are inclined. The lower end of the scraper guide groove (7) is the discharge end. The machine frame (1) is also provided with a receiving box (8) with an upper opening. The discharge end is located in the receiving box (8). The scraper guide groove (7) is connected to the positioning frame (4) through the connecting rod (75).

3. The sapphire abrasive impurity removal and screening equipment according to claim 1, characterized in that, The frame (1) is provided with a support plate (81), and the receiving box (8) is set on the support plate (81).

4. The sapphire abrasive impurity removal and screening equipment according to claim 2, characterized in that, The scraper guide groove (7) also includes a bottom plate (72), a rear baffle (74) and a side plate (73). The side plate (73) and the scraper (71) are located on both sides of the bottom plate (72). The rear baffle (74) is located at the higher end of the scraper guide groove (7). The rear baffle (74) is connected to the bottom plate (72), the scraper (71) and the side plate (73) respectively.

5. A sapphire abrasive impurity removal and screening device according to any one of claims 1-4, characterized in that, The lifting mechanism includes a servo electric cylinder (5) set at the upper end of the portal frame (3). The piston rod of the servo electric cylinder (5) slides through the upper end of the portal frame (3) and its end is connected to the positioning frame (4). The upper end of the positioning frame (4) is provided with a guide shaft (51) that passes through the upper end of the portal frame (3).

6. The sapphire abrasive impurity removal and screening equipment according to claim 5, characterized in that, The upper end of the guide shaft (51) is provided with a limiting plate (52).

7. The sapphire abrasive impurity removal and screening equipment according to claim 1, characterized in that, The positioning frame (4) is shaped like a gate. The driving device includes a drive motor (61). The output shaft of the drive motor (61) is connected to the electrostatic roller (6). A mounting plate (62) is provided on one side of the positioning frame (4). The drive motor (61) is mounted on the mounting plate (62).

8. The sapphire abrasive impurity removal and screening equipment according to claim 1, characterized in that, The scraper guide groove (7) has a vibrating motor (9) on its bottom plate (72).

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