Automatic spraying production line for light guide plate

Abstract

The invention relates to the technical field of light guide plate spraying, and discloses a light guide plate automatic spraying production line which comprises an annular conveying line, a conveying plate is fixed to the surface of the annular conveying line, a plurality of sets of sliding seats are arranged on the conveying plate, and positioning plates used for fixing light guide plates are rotationally arranged on the sliding seats. A fixing base is arranged at the bottom of the annular conveying line, a first annular sliding groove is formed in the fixing base, a second annular sliding groove is formed in the bottom of the first annular sliding groove in a communicating mode, an adjusting rod is arranged in the second annular sliding groove in a sliding mode, and a second limiting ball is fixed to the bottom of the adjusting rod. A second track groove for the second limiting ball to slide is formed in the bottom of the second annular sliding groove. According to the technical scheme, a second limiting ball slides along a second track groove, so that an adjusting rod ascends and descends, after the top face of the light guide plate is sprayed, the light guide plate can be driven to rotate, and therefore the two side faces of the light guide plate can be automatically sprayed conveniently.

Description

Technical Field

[0001] The present invention relates to the technical field of light guide plate spraying, in particular to an automatic spraying production line for light guide plates. Background Art

[0002] Light guide plates are made of optical-grade acrylic / PC sheets, high-tech materials with extremely high refractive index and no light absorption. During production, in order to improve the quality of the light guide plates, protective materials, structural reinforcement materials or some special functional coatings need to be sprayed on the surface of the light guide plates to increase the safety and protection of the light guide plates. During the spraying production of light guide plates, it is necessary to spray the top surface and both side surfaces of the light guide plates. However, when spraying the light guide plates on existing light guide plate spraying production lines, the top surface and both side surfaces of the light guide plates are generally sprayed separately. After the top surface of the light guide plates is sprayed, it is necessary to manually change the surface of the light guide plates before spraying the side surfaces of the light guide plates, which is time-consuming and labor-intensive, resulting in low spraying efficiency of the light guide plates. Summary of the Invention

[0003] The present invention provides an automatic spraying production line for light guide plates, in which a second limiting ball slides along a second track groove, so that an adjusting rod can be raised and lowered. By utilizing the raising and lowering of the adjusting rod, the light guide plate can be automatically driven to rotate after the top surface of the light guide plate is sprayed, thereby facilitating automatic spraying of both side surfaces of the light guide plate. This solves the problem mentioned in the above background technology that after the top surface of the light guide plate is sprayed, manual surface treatment of the light guide plate is required before the side surfaces of the light guide plate can be sprayed, which is time-consuming and labor-intensive, resulting in low spraying efficiency of the light guide plate.

[0004] The present invention provides the following technical solution: an automatic spraying production line for light guide plates, comprising an annular conveyor line, a conveyor plate fixed on the surface of the annular conveyor line, a spraying area provided on one side of the annular conveyor line, several groups of slides provided on the conveyor plate, a positioning plate for fixing the light guide plate rotatably provided on the slide, a fixed base provided at the bottom of the annular conveyor line, a first annular slide groove provided on the fixed base, a second annular slide groove provided at the bottom of the first annular slide groove, an adjusting rod provided for sliding inside the second annular slide groove, a second limiting ball fixed to the bottom of the adjusting rod, a second track groove provided at the bottom of the second annular slide groove for sliding the second limiting ball, the second limiting ball drives the adjusting rod to rise and fall by sliding in the second track groove, and the adjusting rod drives the positioning plate to rotate by rising and falling.

[0005] As an optional solution for the automatic spraying production line of the light guide plate described in the present invention, the second track groove includes a fifth horizontal part, a third ascending part, a sixth horizontal part, a fourth descending part, a fourth ascending part, a seventh horizontal part, a fifth descending part and a fifth ascending part which are connected in sequence.

[0006] As an optional solution for the automatic spraying production line of light guide plates described in the present invention, a rotating shaft is provided inside the slide, a rotating groove is provided inside the slide, both ends of the rotating shaft are fixed to the positioning plate, and a rotating component for driving the rotating shaft to rotate is provided between the rotating shaft and the adjusting rod.

[0007] As an optional solution to the automatic spraying production line for light guide plates described in the present invention, the rotating assembly includes a gear connected to the rotating shaft key, and a tooth plate meshing with the gear is fixedly provided on the top of the adjusting rod, and the tooth plate is slidably connected to the slide seat.

[0008] As an optional solution to the automatic spraying production line for light guide plates described in the present invention, the rotating component includes a sleeve fixedly mounted on the rotating shaft, a spiral groove is provided on the sleeve, an adjusting plate is fixedly provided on the top of the adjusting rod, the adjusting plate is slidably connected to the slide seat, an inclined groove is provided on the adjusting plate, a convex column is slidably provided in the inclined groove, the end of the convex column is slidably provided in the spiral groove, and a horizontal plate is fixed inside the rotating groove, and a limiting groove is provided on the horizontal plate for the sliding of the convex column.

[0009] As an optional solution for the automatic spraying production line of light guide plates described in the present invention, a lifting rod is fixedly provided at the bottom of the slide seat, the adjusting rod is slidably connected to the lifting rod, a first limiting ball is fixed to the bottom end of the lifting rod, and a first track groove for sliding of the first limiting ball is provided at the bottom end of the first annular slide groove, and the first track groove includes a first horizontal part, a first ascending part, a second horizontal part, a first descending part, a third horizontal part, a second ascending part, a fourth horizontal part, and a second descending part which are connected in sequence.

[0010] As an optional solution of the automatic spraying production line for light guide plates of the present invention, the first annular chute includes several groups of annular chute 1 and several groups of annular chute 2.

[0011] As an optional solution for the automatic spraying production line of the light guide plate described in the present invention, the annular slide groove includes a first smooth sliding part, a first spacing extension part, a first rocking part, a first flipping part, a second rocking part, a first spacing shortening part, a first right-moving part, a second smooth sliding part and a first left-moving part which are connected in sequence.

[0012] As an optional solution for the automatic spraying production line of the light guide plate described in the present invention, the annular slide groove 2 includes a third smooth sliding part, a second left-moving part, a fourth smooth sliding part, a second right-moving part, a second spacing extension part, a third shaking part, a second flipping part, a fourth shaking part, and a second spacing shortening part which are connected in sequence.

[0013] As an optional solution of the automatic spraying production line for light guide plates of the present invention, a plurality of groups of suction cups are fixed on the upper surface of the positioning plate, and the plurality of groups of suction cups adsorb and fix the light guide plates through negative pressure adsorption.

[0014] The present invention has the following beneficial effects: 1. In the automatic spraying production line of the light guide plate, when the light guide plate is sprayed, the positioning plate vertically adsorbs and fixes the light guide plate, and then transports the light guide plate to the spraying area through the conveying plate, and first sprays the top surface of the light guide plate. After the top surface of the light guide plate is sprayed, the second limiting ball slides inside the second track groove, so that the second limiting ball can drive the adjusting rod to move up and down, and the adjusting rod can drive the gear plate to move up and down, through the meshing action of the gear plate and the gear, the gear plate can drive the gear to move forward and reverse, the gear drives the rotating shaft to move forward and reverse, and the rotating shaft drives the positioning plate to move forward and reverse, so that the light guide plate fixed on the positioning plate can move forward and reverse, so as to facilitate the automatic flipping of the light guide plate, and facilitate the automatic spraying of the two sides of the light guide plate after the top surface of the light guide plate is sprayed, which is time-consuming and has high spraying efficiency.

[0015] 2. In the automatic spraying production line of the light guide plate, when spraying is performed on both sides of the light guide plate, the conveying plate drives the adjusting rod to slide in the second annular groove, and at the same time drives the lifting rod to slide inside the first annular groove, so that the first limiting ball slides along the first track groove, so that the first limiting ball can drive the lifting rod to move up and down, and the lifting of the lifting rod can drive the slide to move up and down, and the lifting of the slide can drive the positioning plate to move up and down, and the lifting of the positioning plate drives the fixed light guide plate to move up and down, so that after the angle of the light guide plate is adjusted, the height between the light guide plate and the spraying area can be changed, which is convenient for adjusting the spraying distance to a suitable position, thereby further increasing the spraying effect.

[0016] 3. In the automatic spraying production line of the light guide plate, when the angle of the light guide plate is adjusted, the lifting rod slides along the first annular groove, which can change the distance between the two adjacent groups of light guide plates, so that the distance between the two adjacent groups of light guide plates is greater than the height when the light guide plates are placed vertically, so that when the light guide plates are rotated to a horizontal state, there will be no obstruction problem between the two adjacent groups of light guide plates, thereby improving the adequacy of the spraying. At the same time, when the lifting rod slides along the first annular groove, it can drive the horizontal light guide plate to reciprocate left and right, thereby providing uniformity in the spraying and further increasing the spraying effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixed base part of the present invention.

[0019] Figure 3 Schematic diagram of the connection structure between the positioning plate and the light guide plate in the present invention.

[0020] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 It is a schematic diagram of the structure of the positioning plate part in the present invention.

[0022] Figure 6 For the present invention Figure 2 Enlarged view of point B in the middle.

[0023] Figure 7 This is a planar structural distribution diagram of the first track groove and the second track groove part in the present invention.

[0024] Figure 8 This is a top plan structural distribution diagram of the first annular chute in the present invention.

[0025] Figure 9 This is one of the structural schematic diagrams of another technical solution of the rotating assembly in the present invention.

[0026] Figure 10 This is the second structural diagram of another technical solution of the rotating assembly in the present invention.

[0027] Figure 11 This is the third structural diagram of another technical solution of the rotating assembly in the present invention.

[0028] 714, first turning portion; 715, second turning portion; 716, first spacing shortening portion; 717, first rightward shifting portion; 718, second stable sliding portion; 719, first leftward shifting portion; 72, annular chute 2; 721, third stable sliding portion; 722, second leftward shifting portion; 723, fourth stable sliding portion; 724, second rightward shifting portion; 725, second spacing shortening portion; 726, third shaking portion; 727, second turning portion; 728, fourth shaking portion; 729, second spacing shortening portion; 8, second annular chute; 9, adjusting rod; 10, second limiting ball; 11, first Second track groove; 111, fifth horizontal portion; 112, third ascending portion; 113, sixth horizontal portion; 114, fourth descending portion; 115, fourth ascending portion; 116, seventh horizontal portion; 117, fifth descending portion; 118, fifth ascending portion; 12, rotating shaft; 13, gear; 14, rotating groove; 15, sleeve; 16, tooth plate; 17, slideway; 18, lifting rod; 19, first limiting ball; 20, first track groove ; 201, first horizontal part; 202, first ascending part; 203, second horizontal part; 204, first descending part; 205, third horizontal part; 206, second ascending part; 207, fourth horizontal part; 208, second descending part; 21, square rod; 22, round rod; 23, suction cup; 24, light guide plate; 25, spiral groove; 26, adjustment plate; 27, inclined groove; 28, boss; 29, horizontal plate; 30, limit groove. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0030] For example 1, please refer to Figures 1-11, a light guide plate automatic spraying production line, including a ring conveyor line 1, a conveyor plate 2 is fixed on the surface of the ring conveyor line 1, a spraying area 3 is provided on one side of the ring conveyor line 1, a plurality of slides 4 are provided on the conveyor plate 2, a positioning plate 5 for fixing the light guide plate 24 is rotatably provided on the slide 4, a fixed base 6 is provided at the bottom of the conveyor line, a first annular chute 7 is provided on the fixed base 6, a second annular chute 8 is provided at the bottom of the first annular chute 7, an adjusting rod 9 is provided for sliding inside the second annular chute 8, a second limiting ball 10 is fixed to the bottom of the adjusting rod 9, a second track groove 11 for sliding the second limiting ball 10 is provided at the bottom of the second annular chute 8, the second limiting ball 10 drives the adjusting rod 9 to rise and fall by sliding in the second track groove 11, and the adjusting rod 9 drives the positioning plate 5 to rotate by rising and falling; The second track groove 11 includes a fifth horizontal portion 111, a third rising portion 112, a sixth horizontal portion 113, a fourth descending portion 114, a fourth rising portion 115, a seventh horizontal portion 116, a fifth descending portion 117 and a fifth rising portion 118 which are sequentially connected. The internal rotation of the slide 4 is provided with a rotating shaft 12, and a rotating groove 14 is opened inside the slide 4. Both ends of the rotating shaft 12 are fixed to the positioning plate 5. A rotating assembly for driving the rotating shaft 12 to rotate is provided between the rotating shaft 12 and the adjusting rod 9; The rotating assembly includes a gear 13 connected to the rotating shaft 12 by a key. A toothed plate 16 meshing with the gear 13 is fixedly provided on the top of the adjusting rod 9. The toothed plate 16 is slidably connected to the slide 4. A plurality of suction cups 23 are fixed on the upper surface of the positioning plate 5 , and the plurality of suction cups 23 adsorb and fix the light guide plate 24 through negative pressure adsorption.

[0031] In this technical solution, the conveying plate 2 moves synchronously with the circular conveying line 1. When the light guide plate 24 is sprayed, the light guide plate 24 is first placed vertically on the positioning plate 5, and the suction cup 23 is used for negative pressure adsorption to fix the light guide plate 24 into a fixed position. Figure 2In this state, when the annular conveyor line 1 drives the conveying plate 2 to move to the front end of the spraying area 3, the top surface of the light guide plate 24 is sprayed through the spraying area 3 until the top surface of the light guide plate 24 is sprayed. When the conveying plate 2 moves, it drives the adjusting rod 9 to slide along the second annular slide groove 8, and the adjusting rod 9 drives the second limiting ball 10 to slide along the second track groove 11 to spray the top surface of the light guide plate 24. The second limiting ball 10 slides along the fifth horizontal portion 111, and then the light guide plate 24 moves, and the second limiting ball 10 moves along the third rising portion 112, so that the second limiting ball 10 drives the adjusting rod 9 to move upward, and the adjusting rod 9 moves upward to drive the gear plate 16 to move upward. Through the meshing action of the gear plate 16 and the gear 13, the gear plate 16 moves upward to drive the gear 13 to rotate, and the rotation of the gear 13 drives the rotating shaft 12 to rotate, and the rotation of the rotating shaft 12 drives the positioning plate 5 to rotate, and the rotation of the positioning plate 5 drives the fixed light guide plate 24 to rotate When the second limiting ball 10 slides along the seventh horizontal portion 116, it continues to spray through the spraying area 3 to spray the other side of the light guide plate 24, thereby completing the automatic spraying process of the top surface and two side surfaces of the light guide plate 24.

[0032] Example 2: This example is another technical solution for the rotating assembly. For details, please refer to Figures 1-11 The rotating assembly includes a sleeve 15 fixedly sleeved on the rotating shaft 12, and a spiral groove 25 is provided on the sleeve 15. An adjusting plate 26 is fixedly provided on the top of the adjusting rod 9, and the adjusting plate 26 is slidably connected to the slide 4. An inclined groove 27 is provided on the adjusting plate 26, and a boss 28 is slidably provided in the inclined groove 27. The end of the boss 28 is slidably provided in the spiral groove 25, and a horizontal plate 29 is fixed inside the rotating groove 14, and a limiting groove 30 for the boss 28 to slide is provided on the horizontal plate 29.

[0033] When the adjusting rod 9 moves upward, the adjusting plate 26 is driven to move upward. Due to the interference of the inclined groove 27 and the limiting effect of the limit groove 30, the boss 28 can only move to the left. The boss 28 moves to the left and interferes with the spiral groove 25, causing the boss 28 to slide inside the spiral groove 25, prompting the sleeve 15 to rotate. The rotation of the sleeve 15 drives the rotating shaft 12 to rotate, thereby causing the light guide plate 24 to rotate; when the adjusting rod 9 moves downward, the adjusting plate 26 is driven downward. Due to the interference of the inclined groove 27 and the limiting effect of the limit groove 30, the boss 28 can only move to the right. The boss 28 moves to the right and interferes with the spiral groove 25, causing the boss 28 to slide inside the spiral groove 25, prompting the sleeve 15 to rotate in the opposite direction. The rotation of the sleeve 15 drives the rotating shaft 12 to rotate in the opposite direction, thereby causing the light guide plate 24 to rotate in the opposite direction, thereby realizing the flipping of the light guide plate 24.

[0034] In the third embodiment, in order to increase the spraying effect, the spraying distance needs to be set at an appropriate value. After the top surface of the light guide plate 24 is sprayed, the light guide plate 24 is rotated so that the light guide plate 24 is in a horizontal state. Since the light guide plate 24 is rotated from the bottom, after the light guide plate 24 is rotated to the horizontal state, the height of the surface of the light guide plate 24 from the spraying area 3 becomes higher, and the spraying distance increases, thereby reducing the spraying effect. In response to this problem, this embodiment is an improvement made on the basis of the first or second embodiment. For details, please refer to Figures 1-11 A lifting rod 18 is fixedly provided at the bottom of the slide 4, and a first limiting ball 19 is fixed to the bottom end of the lifting rod 18. A first track groove 20 for sliding the first limiting ball 19 is opened at the bottom end of the first annular slide 7. The first track groove 20 includes a first horizontal portion 201, a first ascending portion 202, a second horizontal portion 203, a first descending portion 204, a third horizontal portion 205, a second ascending portion 206, a fourth horizontal portion 207, and a second descending portion 208, which are connected in sequence.

[0035] In the present technical solution, the conveying plate 2 drives the lifting rod 18 to slide along the first annular groove 7, and at the same time drives the adjusting rod 9 to slide in the second annular groove 8, so that the first limiting ball 19 slides along the first track groove 20, and the second limiting ball 10 slides along the second track groove 11. After the top surface of the light guide plate 24 is sprayed, the second limiting ball 10 first slides along the a section of the third rising portion 112, and the adjusting rod 9 moves upward relative to the lifting rod 18. The upward movement of the adjusting rod 9 causes the light guide plate 24 to rotate, thereby adjusting the angle of the light guide plate 24 until the light guide plate 24 is rotated to a horizontal state, and then the first limiting ball 19 slides along the first rising portion 202 slides, the second limiting ball 10 slides along section b of the third rising portion 112, so that the lifting rod 18 and the adjusting rod 9 move upward synchronously, so that the light guide plate 24 always remains in a horizontal state, and when the lifting rod 18 moves upward, it drives the slide 4 to move upward, and the upward movement of the slide 4 drives the positioning plate 5 to move upward, and the positioning plate 5 drives the fixed light guide plate 24 to move upward, and adjusts the distance between the light guide plate 24 and the spraying area 3, and raises the light guide plate 24 to a suitable position, and then the first limiting ball 19 slides along the second horizontal portion 203, and the second limiting ball 10 slides along the sixth horizontal portion 113, and one side of the light guide plate 24 is sprayed; After the spraying treatment is completed on one side of the light guide plate 24, the first limiting ball 19 slides along the first descending portion 204, and the second limiting ball 10 slides along the c section of the fourth descending portion 114. The relative position of the lifting rod 18 and the adjusting rod 9 remains unchanged, so that the height of the light guide plate 24 is lowered and reset. Then the first limiting ball 19 slides along the third horizontal portion 205, and the second limiting ball 10 slides along the d section of the fourth descending portion 114, so that the adjusting rod 9 moves downward relative to the lifting rod 18. The adjusting rod 9 moves downward, first resetting the light guide plate 24 to a vertical state, and the second limiting ball 10 continues to slide along the third horizontal portion 205. The e section of the fourth descending portion 114 slides, and the adjusting rod 9 continues to move downward relative to the lifting rod 18, causing the light guide plate 24 to flip over and rotate the other side of the light guide plate 24 to a position facing upward. Then, the first limiting ball 19 slides along the second ascending portion 206, and the second limiting ball 10 slides along the fourth ascending portion 115. The lifting rod 18 and the adjusting rod 9 move upward synchronously, and the light guide plate 24 is raised again. The first limiting ball 19 slides along the fourth horizontal portion 207, and the second limiting ball 10 slides along the seventh horizontal portion 116, and the other side of the light guide plate 24 is sprayed. After the spraying is completed, the first limiting ball 19 slides along the second descending portion 208, and the second limiting ball 10 slides along the fifth descending portion 117, so that the light guide plate 24 is reset and lowered. Then, the second limiting ball 10 slides along the fifth ascending portion 118, so that the adjustment rod 9 moves upward relative to the lifting rod 18, and the light guide plate 24 is reset to the vertical state again, completing the automatic spraying process of the entire light guide plate 24. In this technical solution, the lifting rod 18 includes a square rod 21 and a round rod 22. The end of the square rod 21 is fixed to the slide 4, and the round rod 22 is fixedly connected to the square rod 21. The first limiting ball 19 is fixed to the end of the round rod 22. The round rod 22 is slidably arranged in the first annular slide groove 7, and the square rod 21 is slidably connected to the conveying plate 2 and the annular conveyor line 1; the setting of the square rod 21 prevents self-rotation during lifting and sliding, thereby avoiding the situation where the slide 4 rotates during movement. The setting of the round rod 22 can increase smoothness and facilitate the sliding of the round rod 22 in the first annular slide groove 7.

[0036] In the fourth embodiment, in order to facilitate the simultaneous spraying of multiple groups of light guide plates 24, the spacing between the light guide plates 24 is generally smaller than the vertical height of the light guide plates 24. When the light guide plates 24 are adjusted in angle, the distance between two adjacent groups of light guide plates 24 cannot meet the height requirement of the light guide plates 24. When the light guide plates 24 are rotated to a horizontal state, the top of the light guide plate 24 will block the bottom of another group of light guide plates 24, thereby affecting the spraying of the other group of light guide plates 24. This embodiment is an improvement made on the basis of the third embodiment. For details, please refer to Figures 1-11 The annular conveyor line 1 and the conveying plate 2 are provided with a slideway 17 for the lifting rod 18 to slide. The first annular chute 7 includes several groups of annular chute 1 71 and several groups of annular chute 2 72; The annular sliding groove 71 includes a first stable sliding portion 711, a first spacing extension portion 712, a first rocking portion 713, a first flip portion 714, a second rocking portion 715, a first spacing shortening portion 716, a first rightward shifting portion 717, a second stable sliding portion 718, and a first leftward shifting portion 719, which are sequentially connected. The annular slide groove 2 72 includes a third smooth sliding part 721, a second left-moving part 722, a fourth smooth sliding part 723, a second right-moving part 724, a second spacing extension part 725, a third rocking part 726, a second flipping part 727, a fourth rocking part 728, and a second spacing shortening part 729, which are connected in sequence.

[0037] In this technical solution, if Figure 2As shown, taking the simultaneous spraying of six groups of light guide plates 24 as an example, the three groups on the left are the annular chute 2 72, and the three groups on the right are the annular chute 1 71; after the top surface of the light guide plate 24 is sprayed, the three groups of lifting rods 18 on the left drive the three groups of light guide plates 24 on the left to slide along the annular chute 2 72, and the three groups of lifting rods 18 on the right drive the three groups of light guide plates 24 on the right to slide along the annular chute 1 71. First, the three groups of lifting rods 18 on the right slide along the first spacing elongated portion 712, so that the three groups of light guide plates 24 on the right also move to the left , and the spacing between the three groups of light guide plates 24 on the right side is increased. The increased spacing is slightly larger than the height of the light guide plates 24. When the spacing between the three groups of light guide plates 24 on the right side is increased, the three groups of light guide plates 24 on the right side are rotated to a side-up state, and the light guide plates 24 are raised to a suitable height. That is, when the lifting rod 18 slides to the point f of the first spacing extension portion 712, the first limiting ball 19 slides to the top of the first rising portion 202, and then the three groups of lifting rods 18 on the right side are rotated along the first shaking portion 713. The three right lifting rods 18 slide to move left and right, thereby driving the three right light guide plates 24 to move left and right. When the three right light guide plates 24 are sprayed, the left and right movement of the light guide plates 24 further increases the uniformity of the spraying on the surface of the light guide plates 24. Then, the three right lifting rods 18 slide along the first flipping portion 714. At this time, the second limiting ball 10 slides along the e section of the fourth descending portion 114, causing the three right light guide plates 24 to flip over. After flipping, the three right-side lifting rods 18 slide along the second rocking portion 715, and spray the other side surfaces of the three right-side light guide plates 24 by moving left and right. After the spraying of the other side surfaces of the three right-side light guide plates 24 is completed, the three right-side lifting rods 18 slide along the first spacing shortening portion 716, so that the spacing between the three right-side light guide plates 24 is restored. At the same time, the second limiting ball 10 slides along the fifth descending portion 117 and the fifth ascending portion 118, so that the state of the three right-side light guide plates 24 is restored to the vertical state. When the three groups of lifting rods 18 on the right side slide along the first spacing extension portion 712, the three groups of lifting rods 18 on the left side move to the left along the second left shift portion 722, so that the three groups of light guide plates 24 on the left side move to the left and side. When the three groups of lifting rods 18 on the right side spray the three groups of light guide plates 24 along the first rocking portion 713, the first flip portion 714, and the second rocking portion 715, the three groups of lifting rods on the left side move along the fourth stable sliding portion 723 so that the three groups of light guide plates 24 on the left side that are close to the side are not sprayed. When the three groups of lifting rods on the right side slide along the first spacing shortening portion 716, the three groups of lifting rods on the left side slide along the second right shift portion 724, so that the positions of the three groups of light guide plates 24 on the left and the three groups of light guide plates on the right are restored to Figure 2 Status in Then, the three groups of lifting rods 18 on the left side slide along the second spacing extension portion 725, so that the three groups of light guide plates 24 on the left side also move to the right, and the spacing between the three groups of light guide plates 24 on the left side increases. The three groups of lifting rods 18 on the right side slide along the first right-moving portion 717, so that the three groups of light guide plates 24 on the right side move to the right and side. Then, the three groups of lifting rods 18 on the left side slide along the third rocking portion 726, the second flip portion 727, the fourth rocking portion 728, and the second spacing shortening portion 729 to spray the three groups of light guide plates 24 on the left side. At the same time, the three groups of lifting rods 18 on the right side slide along the second stable sliding portion 718 and the first left-moving portion 719. The process of spraying the three groups of light guide plates 24 on the left side is the same as the process of spraying the three groups of light guide plates 24 on the right side, and will not be repeated. When spraying the three groups of light guide plates 24 on the right side, the three groups of light guide plates 24 on the left side are moved to the side so that the three groups of light guide plates 24 on the left side do not affect the spraying of the three groups of light guide plates 24 on the right side. Then, when spraying the three groups of light guide plates 24 on the left side, the three groups of light guide plates 24 on the right side are moved to the side so that the three groups of light guide plates 24 on the right side do not affect the spraying of the three groups of light guide plates 24 on the left side. During spraying, the spacing between the light guide plates 24 is increased so that the spacing between adjacent light guide plates 24 is greater than the height of the light guide plates 24. This ensures that when the light guide plates 24 are rotated to a horizontal state, there will be no mutual obstruction between the adjacent light guide plates 24, thereby further improving the spraying effect. Since after the light guide plates 24 are rotated to a horizontal state, the horizontal plane formed by all the light guide plates 24 will be wider. Compared with the spraying range of the top surface of the light guide plates 24, the spraying range after the light guide plates 24 are rotated to a horizontal state is larger, and it is easy for the light guide plates 24 on both sides to not be sprayed, thereby affecting the spraying effect. Therefore, when spraying multiple groups of light guide plates 24, the present application adopts a left-right alternating spraying method to solve the problem that when all the light guide plates 24 are rotated to a horizontal state, the horizontal length is wide, resulting in the spraying area 3 not being able to fully spray the surface of the light guide plates 24. In addition, the number of light guide plates 24 processed simultaneously in the present application includes but is not limited to six groups; In this technical solution, a nozzle is provided in the spraying area 3 for spraying treatment. This is not an innovation of this application and will not be described in detail. The trajectory of the second annular chute 8 is the same as the trajectory of the first annular chute 7.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A light guide plate automatic spraying production line, comprising an annular conveyor line (1), a conveyor plate (2) fixed to the surface of the annular conveyor line (1), and a spraying area (3) provided on one side of the annular conveyor line (1), characterized in that: The conveying plate (2) is provided with a plurality of slides (4), and a positioning plate (5) for fixing the light guide plate (24) is rotatably provided on the slide (4). The bottom of the annular conveying line (1) is provided with a fixed base (6), and a first annular slide groove (7) is provided on the fixed base (6). The bottom of the first annular slide groove (7) is connected to a second annular slide groove (8), and an adjusting rod (9) is provided for sliding inside the second annular slide groove (8). A second limiting ball (10) is fixed to the bottom of the adjusting rod (9), and a second track groove (11) for sliding the second limiting ball (10) is provided at the bottom of the second annular slide groove (8). The second limiting ball (10) drives the adjusting rod (9) to move up and down by sliding in the second track groove (11), and the adjusting rod (9) drives the positioning plate (5) to rotate by moving up and down.

2. The automatic spraying production line for light guide plates according to claim 1, characterized in that: The second track groove (11) comprises a fifth horizontal portion (111), a third rising portion (112), a sixth horizontal portion (113), a fourth descending portion (114), a fourth ascending portion (115), a seventh horizontal portion (116), a fifth descending portion (117) and a fifth ascending portion (118) which are sequentially connected.

3. The automatic spraying production line for light guide plates according to claim 2, characterized in that: A rotating shaft (12) is provided inside the slide (4) for rotation, a rotating groove (14) is provided inside the slide (4), both ends of the rotating shaft (12) are fixed to the positioning plate (5), and a rotating assembly for driving the rotating shaft (12) to rotate is provided between the rotating shaft (12) and the adjusting rod (9).

4. The automatic spraying production line for light guide plates according to claim 3, characterized in that: The rotating assembly includes a gear (13) key-connected to the rotating shaft (12); a toothed plate (16) meshing with the gear (13) is fixedly provided on the top of the adjusting rod (9); and the toothed plate (16) is slidably connected to the slide seat (4).

5. The automatic spraying production line for light guide plates according to claim 4, characterized in that: The rotating assembly comprises a sleeve (15) fixedly sleeved on the rotating shaft (12), a spiral groove (25) being provided on the sleeve (15), an adjusting plate (26) being fixedly provided on the top of the adjusting rod (9), the adjusting plate (26) being slidably connected to the slide seat (4), an inclined groove (27) being provided on the adjusting plate (26), a convex column (28) being slidably provided in the inclined groove (27), an end portion of the convex column (28) being slidably provided in the spiral groove (25), and a transverse plate (29) being fixed inside the rotating groove (14), a limiting groove (30) being provided on the transverse plate (29) for the convex column (28) to slide.

6. The automatic spraying production line for light guide plates according to claim 1, characterized in that: A lifting rod (18) is fixedly provided at the bottom of the slide seat (4), the adjusting rod (9) is slidably connected to the lifting rod (18), a first limiting ball (19) is fixed to the bottom end of the lifting rod (18), and a first track groove (20) for sliding the first limiting ball (19) is provided at the bottom end of the first annular slide groove (7), and the first track groove (20) includes a first horizontal portion (201), a first rising portion (202), a second horizontal portion (203), a first descending portion (204), a third horizontal portion (205), a second rising portion (206), a fourth horizontal portion (207), and a second descending portion (208) which are sequentially connected.

7. The automatic spraying production line for light guide plates according to claim 6, characterized in that: The annular conveying line (1) and the conveying plate (2) are provided with a slideway (17) for the lifting rod (18) to slide, and the first annular chute (7) includes several groups of annular chute one (71) and several groups of annular chute two (72).

8. The automatic spraying production line for light guide plates according to claim 7, characterized in that: The annular sliding groove (71) includes a first stable sliding portion (711), a first spacing extension portion (712), a first shaking portion (713), a first flip portion (714), a second shaking portion (715), a first spacing shortening portion (716), a first rightward shifting portion (717), a second stable sliding portion (718) and a first leftward shifting portion (719) which are sequentially connected.

9. The automatic spraying production line for light guide plates according to claim 8, characterized in that: The annular chute 2 (72) includes a third stable sliding portion (721), a second leftward moving portion (722), a fourth stable sliding portion (723), a second rightward moving portion (724), a second spacing extension portion (725), a third shaking portion (726), a second turning portion (727), a fourth shaking portion (728), and a second spacing shortening portion (729) which are sequentially connected.

10. The automatic spraying production line for light guide plates according to claim 1, characterized in that: Several groups of suction cups (23) are fixed on the upper surface of the positioning plate (5), and the several groups of suction cups (23) adsorb and fix the light guide plate (24) through negative pressure adsorption.

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