Grinding device for mobile phone screen machining

Abstract

The invention relates to the technical field of mobile phone screen grinding equipment, and discloses a grinding device for mobile phone screen machining, which comprises a machining groove filled with grinding fluid, a first grinding device and a second grinding device are arranged in the machining groove, and each grinding device comprises a rotating shaft and a plurality of grinding rollers arranged at equal intervals. And the positions of the grinding rollers in the two grinding devices are in one-to-one correspondence, the two grinding rollers in the corresponding positions in the two grinding devices grind one mobile phone screen at the same time, the rotating directions of the two grinding rollers for grinding one mobile phone screen are opposite, and the mobile phone screen subjected to grinding machining is immersed in the grinding liquid in the machining groove. According to the mobile phone screen grinding device, the two grinding rollers are arranged, so that when a mobile phone screen is ground, acting force generated when the mobile phone screen is ground by the two grinding rollers can be counteracted, the mobile phone screen can be stably fixed during grinding, the situation that the mobile phone screen moves during grinding is effectively reduced, and then the grinding quality of the mobile phone screen is guaranteed.

Description

Technical Field

[0001] The present application relates to the technical field of mobile phone screen grinding equipment, and in particular to a grinding device for processing mobile phone screens. Background Art

[0002] In the production process of mobile phone screens, screen components made of glass substrates or other materials need to be ground to remove the excess generated during the processing. This helps to ensure that the screen components reach the required size and shape accuracy, and by removing scratches, blemishes and uneven parts on the screen surface, the surface finish of the screen is improved. Grinding can also prepare for subsequent processing steps such as polishing and coating. It is an essential step in the production and processing of mobile phone screens.

[0003] When existing grinding equipment grinds mobile phone screens, it usually fixes the mobile phone screen by clamping or vacuum suction cup adsorption. When the mobile phone screen is fixed by clamping, the clamping device may affect the processing of the mobile phone screen by the grinding equipment, and improper clamp design or excessive clamping force may cause damage or deformation to the surface of the mobile phone screen. Especially for the fixation of flexible screens, vacuum suction cup adsorption is generally used to fix the mobile phone screen.

[0004] However, the existing grinding equipment uses vacuum adsorption to fix the mobile phone screen. When grinding the mobile phone screen, it is easy for the screen to move due to excessive grinding speed, excessive grinding pressure, etc., and the existing grinding equipment uses grinding liquid flushing. The waste particles generated by grinding cannot be thoroughly flushed, which can easily cause scratches on the mobile phone screen. Summary of the invention

[0005] The present application proposes a grinding device for processing mobile phone screens, which has the advantages that when a vacuum suction cup is used to fix the mobile phone screen, the mobile phone screen is not easy to move, and the waste generated by grinding is not easy to scratch the mobile phone screen. It is used to solve the problem that when the existing grinding equipment is used to grind the mobile phone screen, the screen is easily moved due to the grinding pressure and the waste generated by grinding causes scratches on the screen.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical solution: a grinding device for processing a mobile phone screen, comprising a processing tank filled with grinding liquid, in which a first grinding device and a second grinding device are arranged.

[0007] The grinding device includes a rotating shaft, on which are mounted a plurality of grinding rollers arranged at equal intervals. The positions of the grinding rollers in the two grinding devices correspond one to one, and two grinding rollers at corresponding positions in the two grinding devices grind a mobile phone screen at the same time. The two grinding rollers grinding a mobile phone screen rotate in opposite directions, and the grinding liquid in the processing tank immerses the mobile phone screen being ground.

[0008] It also includes a transfer device for transferring mobile phone screens. Two lifting hydraulic cylinders are fixedly installed on the transfer device. The piston shafts of the two lifting hydraulic cylinders are connected to a passive beam. A number of equally spaced vacuum adsorption devices are arranged at the bottom of the passive beam. The vacuum adsorption devices are used to adsorb mobile phone screens.

[0009] Furthermore, the processing tank includes a base and a surrounding plate, wherein the surrounding plate is fixedly installed on the top of the base, and both sides of the bottom of the base are connected with liquid guide tubes, one of which adds grinding liquid to the inner side of the surrounding plate, and the other liquid guide tube discharges the grinding liquid.

[0010] Furthermore, a support plate is fixedly installed in the processing tank, and the number of the support plates is two. The two support plates are arranged on both sides of the processing tank, and the two grinding devices are arranged between the two support plates.

[0011] Furthermore, a plurality of equidistantly arranged positioning sleeves are mounted on the rotating shaft through bearings, and sealing sleeves are provided at both ends of each positioning sleeve to seal the bearing between the inner side of the positioning sleeve and the outer side of the rotating shaft, and grinding rollers are provided on both sides of the positioning sleeve.

[0012] Furthermore, a positioning block is fixedly installed on the outer side of the positioning sleeve, and the top and bottom of the positioning block are provided with grooves that are perpendicular to the rotating axis, and positioning shafts are movably mounted on the two grooves, and both ends of the positioning shafts are movably connected to the inner wall of the processing groove. The positioning shafts are limited on the upper and lower sides of the positioning block to ensure that the positioning blocks, positioning sleeves, rotating shafts and grinding rollers in the two grinding devices always maintain a stable horizontal state, thereby improving the stability of the device.

[0013] Furthermore, both ends of the rotating shaft in the first grinding device are fixedly installed with two support plates through bearings, and a first motor that drives the rotating shaft in the first grinding device to rotate is fixedly installed on one of the support plates, and a limiting sleeve that is movably connected to the other end of the rotating shaft in the first grinding device is fixedly installed on the other support plate, and slide grooves are provided on the two support plates. Sliding sleeves are respectively installed on both ends of the rotating shaft in the second grinding device through bearings, and the two sliding sleeves at both ends of the rotating shaft are respectively movably connected to the slide grooves on the two support plates, a baffle is fixedly installed on the outer side of one of the sliding sleeves, and the baffle is movably connected to the outer side of one of the support plates, a second motor is fixedly installed on the outer side of the other sliding sleeve, and the second motor is movably connected to the outer side of the other support plate, the second motor drives the rotating shaft in the second grinding device to rotate, and the inner sides of the two support plates are provided with adjustment devices for pushing the second grinding device to move toward or away from the first grinding device.

[0014] Furthermore, the positioning device includes two L-shaped plates fixedly mounted on the inner side of the support plate, the two L-shaped plates are located on the upper and lower sides of the rotating shaft, a slider is movably mounted between the two L-shaped plates, the slider is movably mounted on the outer side of the rotating shaft, a limiting block is fixedly mounted on one end of the two L-shaped plates, a positioning hydraulic cylinder is fixedly mounted on the side of the limiting block away from the slider, the piston shaft of the positioning hydraulic cylinder passes through the limiting block and is connected to a linkage sleeve, and the side of the linkage sleeve away from the piston shaft of the positioning hydraulic cylinder is fixedly connected to one side of the slider.

[0015] Furthermore, the slider and the rotating shaft, and the positioning hydraulic cylinder and the linkage sleeve are connected via bearings, and sealing rings are respectively provided at the connecting parts between the rotating shaft and the slider, and the connecting parts between the positioning hydraulic cylinder and the linkage sleeve to seal the bearings.

[0016] Furthermore, the transfer device includes two hollow beams, and three groups of carrier plates are fixedly installed between the two hollow beams, each group of carrier plates has two carrier plates, and each group of carrier plates is arranged on the upper and lower sides of the hollow beams. One of the groups of carrier plates is arranged in the middle of the two hollow beams, and a passive block is fixedly installed on a carrier plate located in the middle of the two hollow beams, a screw rod is threaded in the middle of the passive block, and two limit rods are movably mounted on the passive block, and the two limit rods are arranged on both sides of the passive block. The other two groups of carrier plates are arranged at both ends of the hollow beams, and a lifting hydraulic cylinder is fixedly installed on a carrier plate located at both ends of the two hollow beams.

[0017] Furthermore, the vacuum adsorption device includes a mounting plate fixedly installed at the bottom of the passive beam, a fixing box fixedly installed at the bottom of the mounting plate, at least two positioning connecting pipes fixedly installed at the bottom of the fixing box, a suction cup fixedly installed at the bottom end of the positioning connecting pipe, an air guide hose connected between two adjacent fixing boxes, an air supply hose connected to the outside of one of the fixing boxes, one end of the air supply hose is connected to the negative pressure pump, and the air supply hose, the air guide hose, and the positioning connecting pipe are connected.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present application provides a grinding device for processing mobile phone screens. Two grinding devices are arranged in a processing tank. The positions of the grinding rollers for grinding the mobile phone screens in the two grinding devices correspond to each other. A mobile phone screen is ground, and the two grinding rollers for grinding a mobile phone screen rotate in opposite directions. As a result, when the mobile phone screen is ground, the forces exerted by the two grinding rollers on the mobile phone screen can offset each other, which is convenient for stably fixing the mobile phone screen during grinding. Compared with the existing grinding equipment that uses vacuum adsorption to fix the mobile phone screen, the device effectively reduces the movement of the mobile phone screen due to excessive grinding speed, excessive grinding pressure, etc. during grinding, thereby ensuring the grinding quality of the mobile phone screen.

[0020] 2. The present application provides a grinding device for processing mobile phone screens, which grinds a mobile phone screen at the same time by two grinding rollers at corresponding positions in two grinding devices, thereby improving the grinding efficiency of a single mobile phone screen, and the grinding rollers used for grinding the mobile phone screen are arranged in multiple groups, so that multiple mobile phone screens can be ground at the same time, further improving the processing efficiency of the mobile phone screen.

[0021] 3. The present application provides a grinding device for processing mobile phone screens. The grinding device is placed in a processing tank, and the grinding roller in the grinding device is used to perform grinding processing on the bottom of the mobile phone screen. The grinding liquid in the processing tank is used to immerse the mobile phone screen to be ground, so that the processed surface of the mobile phone screen is in full contact with the grinding liquid, which is beneficial to the full utilization of the grinding liquid and the uniform grinding of the mobile phone screen, thereby improving the grinding effect. Moreover, the grinding liquid completely immerses the processed surface of the mobile phone screen, and the circulation system is set up. Compared with the existing grinding equipment that uses grinding liquid flushing, this effectively avoids the problem that the waste particles generated by grinding cannot be thoroughly flushed, which easily causes scratches on the mobile phone screen, thereby improving the grinding quality of the mobile phone screen and reducing the driving energy consumption of the grinding liquid flushing. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work:

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 Schematic diagram of the back structure of the middle base and the enclosure;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of the vacuum adsorption device and two grinding devices;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure of two grinding devices;

[0027] Figure 5 for Figure 4 A local enlarged structural schematic diagram;

[0028] Figure 6 for Figure 4 A schematic diagram of the connection structure of both sides of one of the support plates;

[0029] Figure 7 for Figure 6 Right view of;

[0030] Figure 8 for Figure 4 A schematic diagram of the local enlarged structure at B in FIG.

[0031] Fig. 9 for Figure 3 A schematic diagram of the structure of the vacuum adsorption device;

[0032] Fig.10 This is a schematic diagram of the state of a single mobile phone screen when it starts to be ground;

[0033] Fig.11 This is a schematic diagram of the state of a single mobile phone screen after grinding.

[0034] In the figure: 1. base; 2. enclosure; 3. liquid guide tube; 4. support plate; 401. slide; 5. rotating shaft; 6. positioning sleeve; 7. grinding roller; 8. positioning block; 9. positioning shaft; 10. first motor; 11. limiting sleeve; 12. sliding sleeve; 13. baffle; 14. second motor; 15. L-shaped plate; 16. slider; 17. limiting block; 18. positioning hydraulic cylinder; 19. linkage sleeve; 20. hollow beam; 21. carrier plate; 22. passive block; 23. screw rod; 24. limiting rod; 25. lifting hydraulic cylinder; 26. passive beam; 27. mounting plate; 28. fixing box; 29. ​​positioning connecting pipe; 30. suction cup; 31. air guide hose; 32. air delivery hose. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] like Figure 1-Figure 2 A grinding device for processing a mobile phone screen comprises a processing tank filled with grinding liquid and a transfer device for transferring the mobile phone screen for grinding, the processing tank comprises a base 1 and a panel 2, the panel 2 is fixedly mounted on the top of the base 1, and both sides of the bottom of the base 1 are connected with liquid guide tubes 3, one of which adds grinding liquid to the inner side of the panel 2, and the other liquid guide tube 3 discharges the grinding liquid so as to circulate the grinding liquid for heat dissipation and filter impurities. The specific circulation system and filtering structure can use the existing disclosed technology, which will not be elaborated here, so that the grinding liquid can be used for lubrication, cooling and cleaning when the mobile phone screen is polished in mass production to ensure the grinding quality of the mobile phone screen.

[0037] A support plate 4 is fixedly installed inside the processing tank. There are two support plates 4, which are arranged on both sides of the processing tank. Both support plates 4 are fixed to the top of the base 1 through L-shaped fixings. Please refer to Figure 2-Figure 5 Two grinding devices are arranged between the two support plates 4, namely the first grinding device and the second grinding device. The grinding device includes a rotating shaft 5, on which a plurality of equidistantly arranged positioning sleeves 6 are installed through bearings, and sealing sleeves are provided at both ends of each positioning sleeve 6 to seal the bearings between the inner side of the positioning sleeve 6 and the outer side of the rotating shaft 5. Grinding rollers 7 located on both sides of the positioning sleeve 6 are installed on the rotating shaft 5. The positions of the grinding rollers 7 in the two grinding devices correspond one to one, and the two grinding rollers 7 at corresponding positions in the two grinding devices grind a mobile phone screen at the same time, so that the two grinding devices can process multiple mobile phone screens at the same time, thereby improving the efficiency of mobile phone screen grinding. At the same time, the two grinding rollers 7 can be controlled to rotate in opposite directions, so that the forces acting on the mobile phone screen when being ground by the two grinding rollers 7 can offset each other, thereby facilitating stable fixation of the mobile phone screen during grinding.

[0038] A positioning block 8 is fixedly installed on the outside of the positioning sleeve 6. The top and bottom of the positioning block 8 are provided with grooves that are perpendicular to the rotating shaft 5. Positioning shafts 9 are movably mounted on the two grooves. Both ends of the positioning shaft 9 are movably connected to the inner wall of the enclosure 2. The positioning shaft 9 is limited on the upper and lower sides of the positioning block 8 to ensure that the positioning blocks 8, positioning sleeves 6, rotating shafts 5 and grinding rollers 7 in the two grinding devices always maintain a stable horizontal state, thereby improving the stability of the device.

[0039] Please continue reading Figure 4 , Figure 6-Figure 8 Both ends of the rotating shaft 5 in the first grinding device are fixedly installed with the two support plates 4 through bearings, and a first motor 10 for driving the rotating shaft 5 in the first grinding device to rotate is fixedly installed on one of the support plates 4, and a limiting sleeve 11 movably connected to the other end of the rotating shaft 5 in the first grinding device is fixedly installed on the other support plate 4, and a sealing ring is provided at the connection between the limiting sleeve 11 and the rotating shaft 5 for sealing, so that the first grinding device is fixedly set between the two support plates 4.

[0040] Slide grooves 401 are provided on the two support plates 4, and sliding sleeves 12 are installed at both ends of the rotating shaft 5 in the second grinding device through bearings, and the two sliding sleeves 12 at both ends of the rotating shaft 5 are movably connected with the slide grooves 401 on the two support plates 4, so that the two sliding sleeves 12 can move toward or away from the first grinding device along the slide grooves 401 on the two support plates 4, thereby enabling the second grinding device to move toward or away from the first grinding device, and adjusting the spacing value of the two grinding rollers 7 at the corresponding positions in the second grinding device and the first grinding device, and the spacing value is half of the length of the mobile phone screen, so as to grind according to mobile phone screens of different sizes. At the beginning of grinding, the grinding roller 7 in one of the grinding devices grinds from one end of the mobile phone screen, while the grinding roller 7 in the other grinding device grinds from the middle of the mobile phone screen. A baffle 13 is fixedly mounted on the outer side of one of the sliding sleeves 12, and the baffle 13 is movably connected to the outer side of one of the support plates 4. A second motor 14 is fixedly installed on the outer side of the other sliding sleeve 12, and the second motor 14 is movably connected to the outer side of the other support plate 4. The second motor 14 drives the rotating shaft 5 in the second grinding device to rotate, and the inner sides of the two support plates 4 are provided with a positioning device for pushing the second grinding device to move toward or away from the first grinding device.

[0041] The positioning device includes two L-shaped plates 15 fixedly mounted on the inner side of the support plate 4, the two L-shaped plates 15 are located on the upper and lower sides of the rotating shaft 5, a slider 16 is movably mounted between the two L-shaped plates 15, the slider 16 is movably mounted on the outer side of the rotating shaft 5, and a bearing is arranged between the slider 16 and the rotating shaft 5, a limiting block 17 is fixedly mounted on one end of the two L-shaped plates 15, a positioning hydraulic cylinder 18 is fixedly mounted on the side of the limiting block 17 away from the slider 16, the piston shaft of the positioning hydraulic cylinder 18 passes through the limiting block 17 and is connected to a linkage sleeve 19, and the linkage sleeve 19 is away from the positioning hydraulic cylinder 18. One side of the piston shaft of the pressure cylinder 18 is fixedly connected to one side of the slider 16. The piston shaft is driven by the positioning hydraulic cylinder 18 to push the linkage sleeve 19, the slider 16, the rotating shaft 5 and the grinding roller 7 to move as a whole. Then, the two positioning hydraulic cylinders 18 are used to control the spacing value of the two grinding rollers 7 at corresponding positions in the second grinding device and the first grinding device. The positioning hydraulic cylinder 18 and the linkage sleeve 19 are connected by bearings, and the connecting parts between the rotating shaft 5 and the slider 16 and the connecting parts between the positioning hydraulic cylinder 18 and the linkage sleeve 19 are respectively provided with sealing rings to seal the bearings.

[0042] Please continue reading Figure 2-Figure 3The transfer device includes two hollow beams 20, and three groups of carrier plates 21 are fixedly installed between the two hollow beams 20. The number of each group of carrier plates 21 is two, and each group of carrier plates 21 is arranged on the upper and lower sides of the hollow beam 20, and is fixed to the hollow beam 20 by bolts and nuts. One group of carrier plates 21 is arranged in the middle of the two hollow beams 20, and a passive block 22 is fixedly installed on a carrier plate 21 located in the middle of the two hollow beams 20. The middle part of the passive block 22 is threadedly sleeved with a screw rod 23, and the screw rod 23 drives the movement of the passive block 22 through a motor (through the rotation of the screw rod. As an existing public technology, it will not be described in detail here. The figure also does not show the motor that drives the screw to rotate, and the fixed structures at both ends of the screw (such as the like) that drive the rotation, thereby controlling the passive block 22 to drive the two hollow beams 20 and the three groups of carrier plates 21 to move along the screw 23. The passive block 22 is movably mounted with two limit rods 24, and the two limit rods 24 are respectively arranged on both sides of the passive block 22. The other two groups of carrier plates 21 are respectively arranged at both ends of the hollow beam 20, and a lifting hydraulic cylinder 25 is fixedly installed on one of the carrier plates 21 at both ends of the two hollow beams 20. The piston shafts of the two lifting hydraulic cylinders 25 are fixedly mounted with passive beams 26, and the bottom of the passive beam 26 is provided with a plurality of equally spaced vacuum adsorption devices.

[0043] See also Fig. 9 The vacuum adsorption device includes a mounting plate 27 fixedly mounted on the bottom of the passive beam 26, a fixing box 28 fixedly mounted on the bottom of the mounting plate 27, at least two positioning connecting pipes 29 fixedly mounted on the bottom of the fixing box 28, a suction cup 30 fixedly mounted on the bottom end of the positioning connecting pipe 29, an air guide hose 31 connected between two adjacent fixing boxes 28, an air supply hose 32 connected to the outside of one of the fixing boxes 28, one end of the air supply hose 32 is connected to a negative pressure pump (the negative pressure pump is an existing public technology and is not shown in the figure), and the air supply hose 32, the air guide hose 31, and the positioning connecting pipe 29 are connected.

[0044] When in use, the size of the mobile phone screen is processed according to the needs, the positioning hydraulic cylinders 18 on the two support plates 4 are controlled to drive the piston shaft to move at the same time, and the position in the second grinding device is adjusted so that the spacing between the two grinding rollers 7 at the corresponding positions in the two grinding devices is half the length of the mobile phone screen. The mobile phone screen is adsorbed by the suction cup 30 in the vacuum adsorption device, and the vacuum adsorption device and the mobile phone screen are transferred to the top of the two grinding devices by the transfer device, and the middle of the mobile phone screen is located directly above the grinding roller 7 in the first grinding device. The lifting hydraulic cylinder 25 is started to drive the piston shaft to move, and the passive beam 26 is pushed to drive the vacuum adsorption device to move downward, so that the mobile phone screen adsorbed by the suction cup 30 in the vacuum adsorption device is attached to the grinding roller 7 in the first grinding device, that is, Figure 1The state shown in the figure is shown, and the grinding liquid in the processing tank is controlled to completely immerse the mobile phone screen to be processed. The grinding roller 7 in the first grinding device is driven to rotate by the first motor 10, and the second motor 14 drives the grinding roller 7 in the second grinding device to rotate in the opposite direction. At the same time, the vacuum adsorption device is controlled to drive the mobile phone screen to be processed to move from the first grinding device to the second grinding device. The grinding rollers 7 in the two grinding devices rotate in opposite directions to each other, and the mobile phone screen is ground at the same time until the grinding rollers 7 in the two grinding devices rotate in opposite directions. Fig.11 The grinding of a single mobile phone screen is completed as shown in the state.

[0045] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grinding device for processing a mobile phone screen, characterized in that: It includes a processing tank filled with grinding liquid, and a first grinding device and a second grinding device are arranged in the processing tank; The grinding device comprises a rotating shaft (5), on which a plurality of grinding rollers (7) are mounted at equal intervals, the positions of the grinding rollers (7) in the two grinding devices correspond to each other, and the two grinding rollers (7) at corresponding positions in the two grinding devices grind a mobile phone screen at the same time, and the two grinding rollers (7) grinding a mobile phone screen rotate in opposite directions, and the grinding liquid in the processing tank immerses the mobile phone screen being ground; The invention also comprises a transfer device for transferring the mobile phone screen, wherein two lifting hydraulic cylinders (25) are fixedly installed on the transfer device, the piston shafts of the two lifting hydraulic cylinders (25) are connected with a passive beam (26), and a plurality of equally spaced vacuum adsorption devices are arranged at the bottom of the passive beam (26), and the vacuum adsorption devices are used for adsorbing the mobile phone screen.

2. A grinding device for processing a mobile phone screen according to claim 1, characterized in that: The processing tank comprises a base (1) and a surrounding plate (2), wherein the surrounding plate (2) is fixedly mounted on the top of the base (1), and both sides of the bottom of the base (1) are connected to liquid guide tubes (3), wherein one of the liquid guide tubes (3) adds grinding liquid to the inner side of the surrounding plate (2), and the other liquid guide tube (3) discharges the grinding liquid.

3. A grinding device for processing a mobile phone screen according to claim 1, characterized in that: A support plate (4) is fixedly installed in the processing tank, and the number of the support plates (4) is two. The two support plates (4) are arranged on both sides of the processing tank, and the two grinding devices are arranged between the two support plates (4).

4. A grinding device for processing a mobile phone screen according to claim 1, characterized in that: A plurality of equidistantly arranged positioning sleeves (6) are mounted on the rotating shaft (5) via bearings, and sealing sleeves are provided at both ends of each positioning sleeve (6), and grinding rollers (7) are provided on both sides of the positioning sleeve (6).

5. The grinding device for processing a mobile phone screen according to claim 1, characterized in that: A positioning block (8) is fixedly mounted on the outer side of the positioning sleeve (6), and grooves perpendicular to the rotating shaft (5) are provided on the top and bottom of the positioning block (8), and positioning shafts (9) are movably mounted on the two grooves, respectively, and both ends of the positioning shaft (9) are movably connected to the inner wall of the processing groove.

6. A grinding device for processing a mobile phone screen according to claim 3, characterized in that: The two ends of the rotating shaft (5) in the first grinding device are fixedly mounted on the two support plates (4) via bearings, and a first motor (10) for driving the rotating shaft (5) in the first grinding device to rotate is fixedly mounted on one of the support plates (4), and a limiting sleeve (11) movably sleeved with the other end of the rotating shaft (5) in the first grinding device is fixedly mounted on the other support plate (4), and a sliding groove (401) is provided on both support plates (4), and sliding sleeves (12) are respectively mounted on the two ends of the rotating shaft (5) in the second grinding device via bearings, and the two sliding sleeves (12) at the two ends of the rotating shaft (5) are fixedly mounted on the other support plate (4). 2) are respectively movably sleeved with the slide grooves (401) on the two support plates (4), a baffle (13) is fixedly sleeved on the outer side of one of the sliding sleeves (12), and the baffle (13) is movably connected to the outer side of one of the support plates (4), a second motor (14) is fixedly installed on the outer side of the other sliding sleeve (12), and the second motor (14) is movably connected to the outer side of the other support plate (4), the second motor (14) drives the rotating shaft (5) in the second grinding device to rotate, and the inner sides of the two support plates (4) are provided with a positioning device for pushing the second grinding device to move toward or away from the first grinding device.

7. A grinding device for processing a mobile phone screen according to claim 6, characterized in that: The positioning device comprises two L-shaped plates (15) fixedly mounted on the inner side of the support plate (4), the two L-shaped plates (15) being located at the upper and lower sides of the rotating shaft (5), a sliding block (16) being movably mounted between the two L-shaped plates (15), the sliding block (16) being movably mounted on the outer side of the rotating shaft (5), a limiting block (17) being fixedly mounted on one end of the two L-shaped plates (15), a positioning hydraulic cylinder (18) being fixedly mounted on a side of the limiting block (17) away from the sliding block (16), a piston shaft of the positioning hydraulic cylinder (18) passing through the limiting block (17) and being connected to a linkage sleeve (19), and a side of the linkage sleeve (19) away from the piston shaft of the positioning hydraulic cylinder (18) being fixedly connected to a side of the sliding block (16).

8. A grinding device for processing a mobile phone screen according to claim 7, characterized in that: The slider (16) and the rotating shaft (5), and the position adjusting hydraulic cylinder (18) and the linkage sleeve (19) are connected via bearings, and sealing rings are respectively provided at the connection parts between the rotating shaft (5) and the slider (16), and at the connection parts between the position adjusting hydraulic cylinder (18) and the linkage sleeve (19) to seal the bearings.

9. A grinding device for processing a mobile phone screen according to claim 1, characterized in that: The transfer device comprises two hollow beams (20), three groups of carrier plates (21) are fixedly installed between the two hollow beams (20), each group of carrier plates (21) has two carrier plates, and each group of carrier plates (21) is arranged at the upper and lower sides of the hollow beam (20), one of the groups of carrier plates (21) is arranged in the middle of the two hollow beams (20), and a passive block (22) is fixedly installed on a carrier plate (21) located in the middle of the two hollow beams (20), a screw rod (23) is threadedly sleeved in the middle of the passive block (22), two limit rods (24) are movably sleeved on the passive block (22), and the two limit rods (24) are arranged at both sides of the passive block (22), and the other two groups of carrier plates (21) are arranged at both ends of the hollow beam (20), and a lifting hydraulic cylinder (25) is fixedly installed on a carrier plate (21) located at both ends of the two hollow beams (20).

10. A grinding device for processing a mobile phone screen according to claim 9, characterized in that: The vacuum adsorption device comprises a mounting plate (27) fixedly mounted on the bottom of the passive beam (26); a fixing box (28) is fixedly mounted on the bottom of the mounting plate (27); at least two positioning connecting pipes (29) are fixedly mounted on the bottom of the fixing box (28); a suction cup (30) is fixedly mounted on the bottom end of the positioning connecting pipe (29); an air guide hose (31) is connected between two adjacent fixing boxes (28); an air delivery hose (32) is connected to the outside of one of the fixing boxes (28); one end of the air delivery hose (32) is connected to a negative pressure pump; and the air delivery hose (32), the air guide hose (31) and the positioning connecting pipe (29) are connected to each other.

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