A corner polishing device for processing an outer screen of a touch screen

Abstract

The application relates to the field of screen polishing, in particular to a corner polishing device for processing touch screen outer screens. The existing polishing device has the defects of single polishing angle and inconvenience in polishing the arc-shaped corners of the 3D curved surface glass outer screen. The corner polishing device for processing touch screen outer screens comprises a frame body, a bottom plate, a supporting frame and the like; the inside of the frame body is fixedly connected with the bottom plate, and the bottom plate is fixedly connected with the supporting frame. The reciprocating movement of the electric sliding block drives the reciprocating movement of the sliding plate, the polishing belt, the sliding plate and the rotating roller. The rotating roller rotates while reciprocating. The curved surface outer screen is limited by the supporting frame. The reciprocating movement of the sliding plate, the rotating roller, the sliding plate and the polishing belt can polish the curved surface outer screen. The rotation of the rotating roller can better polish the upper surface curved edge of the curved surface outer screen. Since the clamping frame is limited by the supporting frame, the contact frame, the clamping frame and the tension spring cannot move, and the contact frame can stably fix the curved surface outer screen.

Description

Technical Field

[0001] This invention relates to the field of screen polishing, and more particularly to an edge polishing device for processing the outer screen of a touch screen. Background Technology

[0002] Mobile phones are the most widely used touchscreen devices. Currently, mobile phone screens are required to have extremely high light transmittance, and to meet this requirement, the screens usually need to be polished. There are several types of mobile phone screens: 2D flat glass screens, 2.5D curved glass screens, and 3D curved glass screens.

[0003] The sides of the 3D curved glass outer screen have a special arc design. Existing polishing devices simply use specially designed molds to adhere to the 3D curved glass outer screen and then polish it. However, since the sides of the 3D curved glass outer screen have arc corners, different directions need to be changed for polishing. But the existing polishing devices have a relatively single polishing angle, which is not convenient for adhering to the arc corners of the 3D curved glass outer screen for polishing. This can easily leave fine polishing marks on the arc corners of the 3D curved glass outer screen. Summary of the Invention

[0004] To overcome the shortcomings of existing polishing devices, which have a limited polishing angle and are not suitable for polishing the curved edges of 3D curved glass screens, this invention provides a corner polishing device for touch screen processing that can better polish the curved edges of 3D curved glass screens in multiple directions, resulting in a better polishing effect for 3D curved glass screens.

[0005] The technical solution of the present invention is as follows: a corner polishing device for processing a touch screen outer screen, comprising a frame, a base plate, a support frame, a guide rail, an electric slider, a sliding plate, a polishing mechanism, and a pressing mechanism. The base plate is fixedly connected inside the frame, the support frame is fixedly connected to the base plate, the guide rail is fixedly connected to the support frame, the electric slider is slidably connected to the guide rail, the sliding plate is slidably connected to the base plate, the sliding plate is fixedly connected to the electric slider, a curved outer screen is placed on the sliding plate, the curved outer screen is in contact with the support frame, the polishing mechanism is provided on the support frame, the polishing mechanism is used to polish the curved outer screen, and the pressing mechanism is provided on the polishing mechanism to press the curved outer screen.

[0006] As a further preferred option, a support frame is used to limit the movement of the curved outer screen.

[0007] As a further preferred embodiment, the polishing mechanism includes guide rods, a sliding plate, compression springs, rotating rods, a polishing belt, rotating rollers, limit frames, and threaded rods. Two guide rods are fixedly connected to the sliding plate, and a sliding plate is slidably connected to both guide rods. Compression springs are connected between the sliding plate and the two guide rods respectively. Several rotating rods are rotatably connected to the sliding plate, with two rotating rods forming a group. A polishing belt is fitted onto each group of rotating rods, and the polishing belt contacts the support frame and the curved outer screen. Two rotating rollers are rotatably connected to the sliding plate, and the two rotating rollers and the sliding plate contact the upper surface of the curved outer screen. Two limit frames are fixedly connected to the base plate, and threaded rods are threadedly connected to the two rotating rollers respectively. Each limit frame is slidably connected to the threaded rod.

[0008] As a further preferred option, a sliding plate and a sliding plate are used to polish the flat surface of the curved outer screen, while a polishing belt and a rotating roller are used to polish the edges and corners of the curved outer screen.

[0009] As a further preferred embodiment, the clamping mechanism includes a contact frame, a clamp, a return spring seat, and a tension spring. Two contact frames are slidably connected to the slide plate, and two clamps are slidably connected to the slide plate. The two clamps are slidably connected to the contact frames respectively. One end of two return spring seats is fixedly connected to the slide plate, and the other end of the two return spring seats is fixedly connected to the clamp. A tension spring is connected between the two clamps and the contact frames respectively.

[0010] As a further preferred option, the contact frame is used to press the curved outer screen.

[0011] As a further preferred embodiment, a polishing mechanism is also included. The polishing mechanism includes a connecting frame, a rotating plate, a transmission rod, and a torsion spring. Two connecting frames are fixedly connected to the sliding plate. A rotating plate is fixedly connected to each of the two rotating rollers. A transmission rod is fixedly connected to one end of each of the two polishing belts. The transmission rod contacts the rotating plate. A torsion spring is fixedly connected to one of the rotating rods in each group. The two torsion springs are fixedly connected to the connecting frames respectively.

[0012] As a further preferred embodiment, it also includes a pressing mechanism, which includes a protrusion, a fixed seat, an elastic rod, and a contact block. The protrusion is fixedly connected to both rotating plates, and two fixed seats are fixedly connected to the slide plate. An elastic rod is rotatably connected to each of the two fixed seats. One end of the elastic rod contacts the rotating plate, and the other end of the elastic rod contacts the contact frame. A contact block is fixedly connected to each contact frame.

[0013] As a further preferred option, it also includes a fixing plate, with two fixing plates fixedly connected to the base plate.

[0014] As a further preferred embodiment, it also includes a feeder and a diverter frame, with the feeder fixedly connected to the sliding plate and the slide plate respectively, and the diverter frame fixedly connected to the two feeders respectively, and the two diverter frames fixedly connected to the sliding plate and the slide plate respectively.

[0015] The present invention has the following advantages: 1. The reciprocating movement of the electric slider will drive the sliding plate, rotating rod, polishing belt, guide rod, slide plate, compression spring and rotating roller to reciprocate. The reciprocating movement of the rotating roller will be squeezed by the thread on the threaded rod and make the rotating roller rotate. The curved outer screen is restricted by the support frame. The rapid reciprocating movement of the slide plate, rotating roller, sliding plate and polishing belt will perform comprehensive grinding and polishing on the curved outer screen. The rotation of the rotating roller can better polish the upper surface curved edge of the curved outer screen. At the same time, since the card holder is restricted by the support frame, the contact frame, card holder and tension spring will not move. The contact frame will stably fix the curved outer screen.

[0016] 2. The polishing belt is pressed down by the support frame, keeping it taut. The rotating roller moves back and forth and rotates simultaneously. The rotation of the rotating roller drives the rotating plate to rotate, which in turn pushes the transmission rod and the polishing belt to move. The movement of the polishing belt allows for better polishing of the curved edges on the lower surface of the curved outer screen, thus enabling better multi-angle polishing of the curved outer screen and resulting in a better polishing effect.

[0017] 3. The rotation of the rotating plate will drive the protrusion to rotate. The rotation of the protrusion will squeeze one end of the elastic rod to swing around the fixed seat. The swing of the other end of the elastic rod will squeeze the contact frame. The other end of the elastic rod will deform, which will increase the pressure of the contact frame on the curved outer screen. The curved outer screen and the polishing belt will be in closer contact. At the same time, the polishing belt is driven by the rotating plate and the transmission rod, which will further improve the polishing effect of the polishing belt on the curved edge of the lower surface of the curved outer screen. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0019] Figure 2 This is a partial three-dimensional structural diagram of the grinding mechanism and the clamping mechanism of the present invention.

[0020] Figure 3 This is a schematic diagram of the first partial three-dimensional structure of the present invention.

[0021] Figure 4 This is a schematic diagram of a first partial three-dimensional structure of the grinding mechanism of the present invention.

[0022] Figure 5 This is a schematic diagram of a second partial three-dimensional structure of the grinding mechanism of the present invention.

[0023] Figure 6This is a schematic diagram of the third partial three-dimensional structure of the grinding mechanism of the present invention.

[0024] Figure 7 This is a schematic diagram of the three-dimensional structure of the present invention.

[0025] Figure 8 This is a schematic diagram of the second partial three-dimensional structure of the present invention.

[0026] Figure 9 This is a partial three-dimensional structural diagram of the polishing mechanism and the extrusion mechanism of the present invention.

[0027] Figure 10 This is a partial three-dimensional structural diagram of the extrusion mechanism of the present invention.

[0028] Figure 11 This is a partial three-dimensional structural diagram of the contact frame, card holder, elastic rod, and contact block of the present invention.

[0029] Figure 12 This is a partial three-dimensional structural diagram of the curved outer screen and contact frame of the present invention.

[0030] Figure 13 This is a partial three-dimensional structural diagram of the clamping mechanism of the present invention.

[0031] The components are: 1-frame, 2-base plate, 3-support frame, 4-guide rail, 5-electric slider, 51-sliding plate, 52-curved outer screen, 61-guide rod, 62-slide plate, 63-compression spring, 64-rotating rod, 65-polishing belt, 66-rotating roller, 67-limiting frame, 68-threaded rod, 71-contact frame, 72-card holder, 73-reset spring seat, 74-tension spring, 81-connecting frame, 84-rotating plate, 85-transmission rod, 86-torsion spring, 91-protrusion, 92-fixed seat, 93-elastic rod, 94-contact block, 10-fixed plate, 111-feeder, 112-diverter frame. Detailed Implementation

[0032] The present invention will be further described below with reference to specific embodiments. It should also be noted that, unless otherwise explicitly specified and limited, terms such as "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention based on the specific circumstances.

[0033] Example 1: A corner polishing device for processing touch screen outer screen, such as... Figures 1-9As shown, the device includes a frame 1, a base plate 2, a support frame 3, a guide rail 4, an electric slider 5, a sliding plate 51, a grinding mechanism, and a clamping mechanism. The base plate 2 is welded inside the frame 1, and polishing abrasive is placed inside the frame 1. The support frame 3 is welded to the base plate 2, and the guide rail 4 is bolted to the support frame 3. The electric slider 5 is slidably connected to the guide rail 4. The sliding plate 51 is slidably connected to the base plate 2, and the sliding plate 51 is bolted to the electric slider 5. A curved outer screen 52 is placed on the sliding plate 51, and the curved outer screen 52 is in contact with the support frame 3. The support frame 3 is equipped with a grinding mechanism for grinding and polishing the curved outer screen 52. The grinding mechanism is equipped with a clamping mechanism for clamping the curved outer screen 52.

[0034] The support frame 3 is used to limit the curved outer screen 52.

[0035] The polishing mechanism includes guide rods 61, slide plates 62, compression springs 63, rotating rods 64, polishing belts 65, rotating rollers 66, limiting frames 67, and threaded rods 68. Two guide rods 61 are welded onto the sliding plate 51, and slide plates 62 are slidably connected to the two guide rods 61. Compression springs 63 are connected between the slide plates 62 and the two guide rods 61. Several rotating rods 64 are rotatably connected to the sliding plate 51, with two rotating rods 64 forming a group. A polishing belt 65 is fitted onto each group of rotating rods 64, and the polishing belt 65 is in close contact with the rotating rods 64. The polishing belt 65 will contact the support frame 3 and the curved outer screen 52. Two rotating rollers 66 are rotatably connected to the slide plates 62, and the two rotating rollers 66 and the slide plates 62 are in contact with the upper surface of the curved outer screen 52. Two limiting frames 67 are welded onto the base plate 2, and threaded rods 68 are threadedly connected to the two rotating rollers 66. Each limiting frame 67 is slidably connected to the threaded rod 68.

[0036] The sliding plate 51 and the slide plate 62 are used to polish the flat surface of the curved outer screen 52, and the polishing belt 65 and the rotating roller 66 are used to polish the edges and corners of the curved outer screen 52.

[0037] The clamping mechanism includes a contact frame 71, a clamping bracket 72, a return spring seat 73, and a tension spring 74. Two contact frames 71 are slidably connected to the slide plate 62, and two clamping brackets 72 are slidably connected to the slide plate 62. The two clamping brackets 72 are slidably connected to the contact frames 71 respectively. One end of two return spring seats 73 is welded to the slide plate 62, and the other end of the two return spring seats 73 is welded to the clamping bracket 72. Tension springs 74 are connected between the two clamping brackets 72 and the contact frames 71 respectively.

[0038] The contact frame 71 is used to press the curved outer screen 52.

[0039] Initially, a curved outer screen 52 to be polished is placed inside the device. Polishing abrasive is applied to the curved outer screen 52. A compression spring 63 presses the slide plate 62 against the support frame 3. The contact frame 71 stabilizes and fixes the curved outer screen 52 via a tension spring 74. Then, the operator starts the electric slider 5, which moves rapidly back and forth on the guide rail 4. This back and forth movement of the electric slider 5 drives the sliding plate 51, rotating rod 64, and polishing belt 65 to move back and forth. The back and forth movement of the sliding plate 51 drives the slide plate 62, compression spring 63, and rotating roller 66 to move via the guide rod 61. The threaded rod 68 is held in place by the limit frame 67 and will not move. The rotating roller... The reciprocating movement of the slide plate 66 is caused by the threaded guide groove on the threaded rod 68 pressing the rotating roller 66, causing the rotating roller 66 to rotate reciprocally. The curved outer screen 52 is restricted by the support frame 3. The rapid reciprocating movement of the slide plate 62, rotating roller 66, sliding plate 51, and polishing belt 65 will perform comprehensive grinding and polishing on the curved outer screen 52. The rotation of the rotating roller 66 can better polish the curved edge of the upper surface of the curved outer screen 52. At the same time, because the card holder 72 is restricted by the support frame 3, the contact frame 71, card holder 72, and tension spring 74 will not move. The contact frame 71 will stably fix the curved outer screen 52. The reciprocating movement of the slide plate 62 will cause the reset spring seat 73 to be continuously compressed and... After resetting and polishing, the electric slider 5, sliding plate 51, guide rod 61, slide plate 62, compression spring 63, rotating rod 64, reset spring seat 73, polishing belt 65, rotating roller 66, and threaded rod 68 return to their initial positions. The operator lifts the slide plate 62, which compresses the compression spring 63. Simultaneously, the lifting of the slide plate 62 moves the contact frame 71, clamp 72, reset spring seat 73, tension spring 74, rotating roller 66, and threaded rod 68. The reset spring seat 73 restrains the contact frame 71, clamp 72, and tension spring 74, causing the contact frame 71 to disengage from the curved outer screen 52. The contact frame 71 will then be held in place by the tension spring. 74 moves downwards, and then the staff takes out the curved outer screen 52 and puts in a new curved outer screen 52. The curved outer screen 52 is restricted by the support frame 3. Then the staff adds polishing abrasive to the curved outer screen 52. The staff puts down the slide plate 62. The downward movement of the slide plate 62 will drive the contact frame 71, the clamp 72, the reset spring seat 73, the tension spring 74, the rotating roller 66 and the threaded rod 68 to reset. During the downward movement of the slide plate 62, the contact frame 71 will contact the curved outer screen 52. The contact frame 71 stops moving. When the contact frame 71 stops moving, the tension spring 74 will be stretched. At the same time, the clamp 72 will be locked onto the support frame 3. Then this process is repeated.

[0040] Example 2: Based on Example 1, such as Figure 9As shown, it also includes a polishing mechanism, which includes a connecting frame 81, a rotating plate 84, a transmission rod 85, and a torsion spring 86. Two connecting frames 81 are welded onto the sliding plate 51, and rotating plates 84 are welded onto the two rotating rollers 66. One end of each of the two polishing belts 65 is fixedly connected to a transmission rod 85, which contacts the rotating plate 84. A torsion spring 86 is fixedly connected to one of the rotating rods 64 in each group, and the two torsion springs 86 are fixedly connected to the connecting frame 81 respectively.

[0041] Initially, the polishing belt 65 is pressed down by the support frame 3, keeping it taut. The reciprocating movement of the rotating roller 66 is compressed by the threads on the threaded rod 68, causing the rotating roller 66 to rotate. The rotation of the rotating roller 66 drives the rotating plate 84 to rotate, which in turn pushes the transmission rod 85 and the polishing belt 65 to move. The movement of the polishing belt 65 allows for better polishing of the curved edges of the lower surface of the curved outer screen 52, thus enabling better multi-angle polishing of the curved outer screen 52 and resulting in a better polishing effect. At the same time, the movement of the polishing belt 65 can also rotate the rotating rod 64, which in turn causes the torsion spring 8 on the rotating rod 64 to rotate. 6. Twist occurs, and then the rotating roller 66 resets. After the rotating roller 66 resets, it will disengage from the transmission rod 85. The torsion spring 86 resets, which will drive the rotating rod 64 to reset. The rotating rod 64 resets, which will drive the polishing belt 65 to reset. This process is repeated until the curved outer screen 52 is polished. Then, the staff lifts the slide plate 62. The slide plate 62 will drive the rotating plate 84 to move through the rotating roller 66. The rotating plate 84 will disengage from the transmission rod 85. After the curved outer screen 52 is replaced, the staff lowers the slide plate 62. The slide plate 62 will drive the rotating plate 84 to reset through the rotating roller 66. The rotating plate 84 will then contact the transmission rod 85.

[0042] Example 3: Based on Example 2, such as Figures 9-11 As shown, it also includes a pressing mechanism, which includes a protrusion 91, a fixed seat 92, an elastic rod 93, and a contact block 94. The two rotating plates 84 are each welded with a protrusion 91. The sliding plate 62 is connected to two fixed seats 92 by bolts. The two fixed seats 92 are rotatably connected with elastic rods 93. The elastic rods 93 are made of spring steel. One end of the elastic rod 93 contacts the rotating plate 84, and the other end of the elastic rod 93 contacts the contact frame 71. Each contact frame 71 is welded with a contact block 94.

[0043] Initially, the contact frame 71 and contact block 94 limit the elastic rod 93. The rotation of the rotating roller 66 drives the rotating plate 84 to rotate, which in turn drives the protrusion 91 to rotate. The rotation of the protrusion 91 compresses one end of the elastic rod 93, causing it to swing upwards around the fixed base 92. The other end of the elastic rod 93 swings downwards, compressing the contact block 94. This causes deformation at the other end of the elastic rod 93, and the contact block 94 transmits pressure to the contact frame 71, increasing the pressure of the contact frame 71 on the curved outer screen 52. This results in a tighter contact between the curved outer screen 52 and the polishing belt 65. Simultaneously, the polishing belt 65 is driven by the rotating plate 84 and the transmission rod 85, causing the polishing belt 65 to press against the curved edge of the lower surface of the curved outer screen 52. The polishing effect is further improved. The rotating plate 84 drives the protrusion 91 to reset. The protrusion 91 no longer squeezes the elastic rod 93. The elastic rod 93 resets and no longer squeezes the contact block 94 and the contact frame 71. The contact frame 71 no longer applies additional pressure to the curved outer screen 52. The polishing belt 65 can be reset smoothly. This process is repeated continuously. After the curved outer screen 52 is polished, the staff lifts the slide plate 62. The slide plate 62 will drive the protrusion 91, the fixed seat 92, the elastic rod 93, the contact frame 71 and the contact block 94 to move. After the curved outer screen 52 is replaced, the staff puts the slide plate 62 down. The slide plate 62 will drive the protrusion 91, the fixed seat 92, the elastic rod 93, the contact frame 71 and the contact block 94 to reset.

[0044] Example 4: Based on Example 3, such as Figure 2 As shown, it also includes a fixing plate 10, and two fixing plates 10 are connected to the base plate 2 by bolts.

[0045] The reciprocating movement of the electric slider 5 will drive the slide plate 62 to reciprocate through the sliding plate 51 and the guide rod 61. The reciprocating movement of the slide plate 62 will contact the fixed plate 10, and the fixed plate 10 will limit the slide plate 62, so that the slide plate 62 can better polish the upper surface of the curved outer screen 52.

[0046] Example 5: Based on Example 4, such as Figures 6-7 As shown, it also includes a feeder 111 and a diverter 112. The feeder 111 is connected to the sliding plate 51 and the slide plate 62 by bolts. The diverter 112 is connected to the two feeders 111 by bolts. The two diverter 112 are fixedly connected to the sliding plate 51 and the slide plate 62 respectively.

[0047] Initially, the feeder 111 contains polishing abrasive. The feeder 111 and the electric slider 5 are started simultaneously. The sliding plate 51 and the slide plate 62 drive the feeder 111 and the diverter 112 to move back and forth. The feeder 111 delivers the polishing abrasive inside to the curved outer screen 52 through the diverter 112, making the polishing effect of the curved outer screen 52 better. After the curved outer screen 52 is polished, the feeder 111 is turned off, and the operator lifts the slide plate 62. The slide plate 62 will drive one feeder 111 and one diverter 112 to move. After the curved outer screen 52 is replaced, the operator lowers the slide plate 62, which will drive one feeder 111 and one diverter 112 to reset.

[0048] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.

Claims

1. A corner polishing device for processing the outer screen of a touch screen, characterized in that: The device includes a frame (1), a base plate (2), a support frame (3), a guide rail (4), an electric slider (5), a sliding plate (51), a grinding mechanism, and a clamping mechanism. The base plate (2) is fixedly connected inside the frame (1). The support frame (3) is fixedly connected to the base plate (2). The guide rail (4) is fixedly connected to the support frame (3). The electric slider (5) is slidably connected to the guide rail (4). The sliding plate (51) is slidably connected to the base plate (2). The sliding plate (51) is fixedly connected to the electric slider (5). A curved outer screen (52) is placed on the sliding plate (51). The curved outer screen (52) is in contact with the support frame (3). The support frame (3) is equipped with a grinding mechanism for grinding and polishing the curved outer screen (52). The grinding mechanism is equipped with a clamping mechanism for clamping the curved outer screen (52). The support frame (3) is used to limit the curved outer screen (52); The polishing mechanism includes guide rods (61), a slide plate (62), a compression spring (63), a rotating rod (64), a polishing belt (65), a rotating roller (66), a limit frame (67), and a threaded rod (68). Two guide rods (61) are fixedly connected to the sliding plate (51), and a slide plate (62) is slidably connected to both guide rods (61). Compression springs (63) are connected between the slide plate (62) and the two guide rods (61). Several rotating rods (64) are rotatably connected to the sliding plate (51). The rods (64) are in a group, and each group of rotating rods (64) is fitted with a polishing belt (65). The polishing belt (65) will contact the support frame (3) and the curved outer screen (52). Two rotating rollers (66) are rotatably connected to the slide plate (62). The two rotating rollers (66) and the slide plate (62) are in contact with the upper surface of the curved outer screen (52). Two limit frames (67) are fixedly connected to the base plate (2). Threaded rods (68) are threadedly connected to the two rotating rollers (66). Each limit frame (67) is slidably connected to the threaded rod (68).

2. The edge polishing device for processing the outer screen of a touch screen as described in claim 1, characterized in that: The sliding plate (51) and the sliding plate (62) are used to polish the flat surface of the curved outer screen (52), and the polishing belt (65) and the rotating roller (66) are used to polish the edges and corners of the curved outer screen (52).

3. The edge polishing device for processing the outer screen of a touch screen as described in claim 2, characterized in that: The clamping mechanism includes a contact frame (71), a clamp (72), a reset spring seat (73), and a tension spring (74). Two contact frames (71) are slidably connected to the slide plate (62), and two clamps (72) are slidably connected to the slide plate (62). The two clamps (72) are slidably connected to the contact frames (71) respectively. One end of two reset spring seats (73) is fixedly connected to the slide plate (62), and the other end of the two reset spring seats (73) is fixedly connected to the clamps (72). Tension springs (74) are connected between the two clamps (72) and the contact frames (71) respectively.

4. The edge polishing device for processing the outer screen of a touch screen as described in claim 3, characterized in that: The contact frame (71) is used to press the curved outer screen (52).

5. The edge polishing device for processing the outer screen of a touch screen as described in claim 4, characterized in that: It also includes a polishing mechanism, which includes a connecting frame (81), a rotating plate (84), a transmission rod (85), and a torsion spring (86). Two connecting frames (81) are fixedly connected to the sliding plate (51), and rotating plates (84) are fixedly connected to the two rotating rollers (66). One end of the two polishing belts (65) is fixedly connected to the transmission rod (85), and the transmission rod (85) contacts the rotating plate (84). A torsion spring (86) is fixedly connected to one of the rotating rods (64) in each group, and the two torsion springs (86) are fixedly connected to the connecting frame (81) respectively.

6. The edge polishing device for processing the outer screen of a touch screen as described in claim 5, characterized in that: It also includes a pressing mechanism, which includes a protrusion (91), a fixed seat (92), an elastic rod (93) and a contact block (94). The protrusion (91) is fixedly connected to both rotating plates (84). Two fixed seats (92) are fixedly connected to the slide plate (62). The elastic rod (93) is rotatably connected to each of the two fixed seats (92). One end of the elastic rod (93) contacts the rotating plate (84), and the other end of the elastic rod (93) contacts the contact frame (71). A contact block (94) is fixedly connected to each contact frame (71).

7. The edge polishing device for processing the outer screen of a touch screen as described in claim 6, characterized in that: It also includes a fixing plate (10), and two fixing plates (10) are fixedly connected to the base plate (2).

8. The edge polishing device for processing the outer screen of a touch screen as described in claim 7, characterized in that: It also includes a feeder (111) and a diverter (112). The feeder (111) is fixedly connected to the sliding plate (51) and the slide plate (62) respectively. The diverter (112) is fixedly connected to the two feeders (111) respectively. The two diverters (112) are fixedly connected to the sliding plate (51) and the slide plate (62) respectively.

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