Laser engraving equipment for processing light guide plate

Abstract

The invention relates to the technical field of light guide plate processing, and discloses laser engraving equipment for light guide plate processing, which comprises a workbench for placing a light guide plate and a laser engraving station, a movable plate capable of overturning is arranged between the workbench and the laser engraving station, and a support rod is fixed on the movable plate; a side plate is arranged at the end of the workbench, a cleaning roller is rotationally arranged on the side plate, the surface of the cleaning roller is sleeved with a cleaning piece, adsorption holes are formed in the surface of the cleaning roller, an air suction groove is formed in the cleaning roller, and a vent groove is formed between the air suction groove and the adsorption holes in a communicating mode. And a blocking plate is arranged in the cleaning roller in a sliding manner. According to the technical scheme, before laser engraving is conducted on the light guide plate, the light guide plate moves along the cleaning piece, so that the cleaning piece can clean the surface of the light guide plate, dust and impurities on the surface of the light guide plate are conveniently removed, and the influence of the dust and impurities on laser engraving is reduced.

Description

Technical Field

[0001] This invention relates to the field of light guide plate processing technology, specifically to a laser engraving device for processing light guide plates. Background Technology

[0002] Light guide plates are made of optical-grade acrylic / PC sheets and are a high-tech product that transforms line light sources into surface light sources. During the processing of light guide plates, laser engraving equipment is usually used to laser engrave the light guide plates.

[0003] When laser engraving a light guide plate, it is necessary to keep the surface of the light guide plate clean to avoid impurities affecting the laser engraving process. However, during the transportation of the light guide plate, some impurities may adhere to the surface of the light guide plate. If the impurities are not removed in time, the surface of the light guide plate will not be kept clean before laser engraving, resulting in impurity interference and affecting the laser engraving effect. Summary of the Invention

[0004] This invention provides a laser engraving device for processing light guide plates. Before laser engraving, the light guide plate moves along a cleaning component, allowing the cleaning component to wipe and clean the surface of the light guide plate, facilitating the removal of impurities from the surface of the light guide plate. This solves the problem mentioned in the background art that if impurities cannot be removed in time, the surface of the light guide plate cannot be kept clean before laser engraving, resulting in impurity interference and affecting the laser engraving effect.

[0005] The present invention provides the following technical solution: a laser engraving equipment for processing light guide plates, comprising a worktable for placing light guide plates and a laser engraving station, wherein a movable plate that can be flipped is provided between the worktable and the laser engraving station, a support rod is fixed on the movable plate, a servo electric cylinder is fixed on the support rod, and a suction cup for adsorbing and fixing the light guide plate is fixed at the output end of the servo electric cylinder; The workbench is provided with a side plate at one end, and a cleaning roller is rotatably mounted on the side plate. A cleaning component is sleeved on the surface of the cleaning roller. An adsorption hole is opened on the surface of the cleaning roller. An air suction groove is opened inside the cleaning roller. An air vent is provided between the air suction groove and the adsorption hole. A sealing plate is slidably mounted inside the cleaning roller. The sealing plate opens or closes the air vent by reciprocating left and right.

[0006] As an optional solution of the laser engraving equipment for processing light guide plates according to the present invention, the end of the sealing plate is fixed with a sliding rod, the surface of the side plate is provided with an annular groove for the sliding rod to slide, and the sealing plate is provided with a through groove. The sliding rod drives the sealing plate to move by sliding inside the annular groove, so that the through groove is connected to the ventilation groove.

[0007] As an optional solution of the laser engraving equipment for processing light guide plates according to the present invention, the end of the slide rod is fixed with a first sliding protrusion, and the inner wall of the annular slide groove is provided with a first trajectory groove for the first sliding protrusion to slide. The first trajectory groove includes a first translation part, a first right translation part, a second translation part, a first left translation part, a second left translation part, a wave part, and a second right translation part that are connected together. The wave part includes a third left translation part and a third right translation part that are connected together.

[0008] As an optional solution for the laser engraving equipment for processing light guide plates according to the present invention, the end of the adsorption hole is fixed with a perforated plate for supporting the cleaning part.

[0009] As an optional solution of the laser engraving equipment for processing light guide plates according to the present invention, a first connecting ring is fixed inside the cleaning component, a second connecting ring is slidably arranged inside the cleaning roller, a connecting rope is fixed between the first connecting ring and the second connecting ring, an adjusting rod is fixed on the second connecting ring, a first sliding groove is opened on the surface of the sealing plate for the adjusting rod to slide, and a limiting component for changing the height of the adjusting rod is provided in the first sliding groove.

[0010] As an optional solution of the laser engraving equipment for processing light guide plates according to the present invention, the limiting component includes a second sliding protrusion fixed to the adjusting rod, and a second trajectory groove is provided inside the first sliding groove for the second sliding protrusion to slide. The second trajectory groove includes a first horizontal part, a first descending part and a second horizontal part that are connected together.

[0011] As an optional solution of the laser engraving equipment for processing light guide plates according to the present invention, the limiting component includes a limiting ball fixed to the adjusting rod, and a third trajectory groove for the limiting ball to slide is provided at the bottom of the first sliding groove. The third trajectory groove includes a third horizontal part, a second descending part and a fourth horizontal part that are connected together.

[0012] As an optional solution of the laser engraving equipment for processing the light guide plate according to the present invention, the adsorption hole is elastically provided with a striking column for tapping the cleaning part, the end of the striking column is fixed with a driving rod, the sealing plate is provided with a second sliding groove for the driving rod to slide, the end of the driving rod is fixed with a third sliding protrusion, and the inner wall of the second sliding groove is provided with a fourth trajectory groove for the third sliding protrusion to slide.

[0013] As an optional embodiment of the laser engraving equipment for processing light guide plates according to the present invention, the fourth trajectory groove includes a fifth horizontal part, a power storage part, a striking part and a reset part connected in series, and a rotating plate is elastically provided at the connection between the reset part and the power storage part.

[0014] As an optional embodiment of the laser engraving equipment for processing light guide plates according to the present invention, a first servo motor is fixed to the surface of the side plate, a rotating shaft is fixed to the output end of the first servo motor, the end of the cleaning roller is fixedly connected to the end of the rotating shaft, a column is fixed to the outer surface of the worktable, a reciprocating screw is rotatably mounted on the column, a second servo motor connected to the reciprocating screw is fixed to the surface of the column, a movable seat is threadedly connected to the reciprocating screw, the movable plate is rotatably mounted on the movable seat, a first conveyor line is provided on the laser engraving station, and a second conveyor line is provided at the end of the first conveyor line.

[0015] The present invention has the following beneficial effects: 1. The laser engraving equipment for processing the light guide plate uses a suction cup to adsorb and fix the light guide plate, and then moves the light guide plate along the surface of the cleaning component. The cleaning component cleans the lower surface of the light guide plate, and the rotation of the cleaning roller drives the cleaning component to rotate, which improves the cleaning effect of the cleaning component on the light guide plate. When the cleaning roller rotates, the cleaning roller drives the slide rod to slide along the annular slide groove. The slide rod drives the first sliding protrusion to slide along the first track groove, so that the slide rod can move left and right back and forth, thereby causing the sealing plate to move left and right back and forth, which can control the opening or closing of the adsorption hole. When the top of the cleaning component wipes the surface of the light guide plate, the adsorption hole at that point is in the open state. The wiping action of the cleaning component combined with the negative pressure adsorption action makes the cleaning effect of the light guide plate surface better.

[0016] 2. In this laser engraving equipment for processing light guide plates, when the cleaning roller rotates clockwise from point b to point a, the adsorption hole closes, releasing the adsorption effect on the surface of the cleaning part. Through the action of gravity and centrifugal force, the impurities cleaned from the surface of the cleaning part can be easily dropped, which helps to keep the surface of the cleaning part clean. At the same time, when the cleaning roller rotates clockwise from point b to point a, the movement of the sealing plate can drive the adjustment rod to move, so that the adjustment rod can drive the second connecting ring to move. The second connecting ring drives the first connecting ring to move through the connecting rope, so that the first connecting ring can tighten the cleaning part at the adsorption hole. The vibration generated by the cleaning part when it is tightened can easily knock off the impurities on the surface of the cleaning part, further improving the cleaning effect of the surface of the cleaning part.

[0017] 3. The laser engraving equipment for processing the light guide plate, after the cleaning part is tightened, causes the drive rod to slide along the second slide groove through the movement of the sealing plate. The drive rod drives the third sliding protrusion to slide along the fourth track groove, so that the striking column can first store force and then release it instantly to knock and pat the cleaning part. The vibration generated by the knocking and patting makes it easier to knock off the impurities on the surface of the cleaning part. In addition, the striking column can knock multiple times after the cleaning part is straightened, which further improves the impurity removal effect and makes the cleaning effect of the cleaning part better. Attached Figure Description

[0018] Figure 1 This is one of the structural schematic diagrams of the present invention.

[0019] Figure 2 This is the second structural schematic diagram of the present invention.

[0020] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 This is a front structural cross-sectional view of the cleaning roller portion in this invention.

[0022] Figure 5 For the present invention Figure 4 Enlarged view of section B in the middle.

[0023] Figure 6 This is a schematic diagram of the planar structure of the first trajectory groove in this invention.

[0024] Figure 7 This is one of the cross-sectional views of the cleaning roller in this invention.

[0025] Figure 8 This is the second cross-sectional view of the cleaning roller in this invention.

[0026] Figure 9 For the present invention Figure 8 Enlarged view of point C.

[0027] Figure 10 For the present invention Figure 9 Enlarged view of point D in the middle.

[0028] Figure 11 This is a schematic diagram of the structure of the second trajectory groove in the sealing plate of the present invention.

[0029] Figure 12 This is a schematic diagram of another technical solution of the limiting component in this invention.

[0030] Figure 13 This is a schematic diagram of the fourth trajectory groove in the sealing plate of the present invention.

[0031] Figure 14 This is a cross-sectional view of the rotating plate portion in this invention.

[0032] In the diagram: 1. Light guide plate; 2. Worktable; 3. Laser engraving station; 4. Moving plate; 5. Support rod; 6. Servo cylinder; 7. Suction cup; 8. Side plate; 9. Cleaning roller; 10. Cleaning component; 11. Suction hole; 12. Suction groove; 13. Ventilation groove; 14. Sealing plate; 15. Sliding rod; 16. Annular groove; 17. Through groove; 18. First sliding protrusion; 19. First trajectory groove; 191. First translation part; 192. 193. First right-shifting section; 194. Second translational section; 195. First left-shifting section; 196. Second left-shifting section; 197. Wavy section; 198. Third left-shifting section; 199. Third right-shifting section; 190. Second right-shifting section; 20. Mesh plate; 21. First connecting ring; 22. Second connecting ring; 23. Connecting rope; 24. Adjusting rod; 25. First sliding groove; 26. Second sliding protrusion; 27. Second track groove; 271. 272. First descending section; 273. Second horizontal section; 28. Limiting ball; 29. ​​Third track groove; 291. Third horizontal section; 292. Second descending section; 293. Fourth horizontal section; 30. Striking post; 31. Drive rod; 32. Second sliding groove; 33. Third sliding protrusion; 34. Fourth track groove; 341. Fifth horizontal section; 342. Power storage section; 343. Striking section; 344. Reset section; 3 45. Rotating plate; 346. Rotating groove; 347. Rotating rod; 348. Torsion spring; 349. Limiting block; 3410. Stop block; 35. First servo motor; 36. Rotating shaft; 37. Column; 38. Reciprocating lead screw; 39. Second servo motor; 40. Moving seat; 41. First conveyor line; 42. Second conveyor line; 43. Third servo motor; 44. Suction pipe; 45. Suction pump; 46. Receiving box; 47. Spring. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1, please refer to Figures 1-14 A laser engraving device for processing light guide plates includes a worktable 2 for placing light guide plates 1 and a laser engraving station 3. A movable plate 4 that can be flipped is provided between the worktable 2 and the laser engraving station 3. A support rod 5 is fixed on the movable plate 4. A servo electric cylinder 6 is fixed on the support rod 5. A suction cup 7 for adsorbing and fixing the light guide plate 1 is fixed at the output end of the servo electric cylinder 6. The end of the workbench 2 is provided with a side plate 8, and a cleaning roller 9 is rotatably mounted on the side plate 8. A cleaning component 10 is sleeved on the surface of the cleaning roller 9. An adsorption hole 11 is opened on the surface of the cleaning roller 9. An air suction groove 12 is opened inside the cleaning roller 9. An air vent 13 is provided between the air suction groove 12 and the adsorption hole 11. A sealing plate 14 is slidably mounted inside the cleaning roller 9. The sealing plate 14 opens or closes the air vent 13 by reciprocating left and right. The end of the sealing plate 14 is fixed with a sliding rod 15. The surface of the side plate 8 is provided with an annular groove 16 for the sliding rod 15 to slide. The sealing plate 14 is provided with a through groove 17. The sliding rod 15 moves the sealing plate 14 by sliding inside the annular groove 16, so that the through groove 17 is connected to the ventilation groove 13. The end of the slide bar 15 is fixed with a first sliding protrusion 18. The inner wall of the annular groove 16 is provided with a first track groove 19 for the first sliding protrusion 18 to slide. The first track groove 19 includes a first translation part 191, a first right translation part 192, a second translation part 193, a first left translation part 194, a second left translation part 195, a wave part 196, and a second right translation part 197 that are connected together. The wave part 196 includes a third left translation part 1961 and a third right translation part 1962 that are connected together. A perforated plate 20 for supporting the cleaning component 10 is fixed to the end of the adsorption hole 11. A first servo motor 35 is fixed to the surface of the side plate 8. A rotating shaft 36 is fixed to the output end of the first servo motor 35. The end of the cleaning roller 9 is fixedly connected to the end of the rotating shaft 36. A column 37 is fixed to the outer surface of the worktable 2. A reciprocating screw 38 is rotatably mounted on the column 37. A second servo motor 39 connected to the reciprocating screw 38 is fixed to the surface of the column 37. A movable seat 40 is threaded onto the reciprocating screw 38. The movable plate 4 is flip-mounted on the movable seat 40. A first conveyor line 41 is provided on the laser engraving station 3. A second conveyor line 42 is provided at the end of the first conveyor line 41.

[0035] In this technical solution, during the processing of the light guide plate 1, the light guide plate 1 is first sent to the worktable 2. The servo cylinder 6 pushes the suction cup 7 downward, so that the suction cup 7 adsorbs and fixes the surface of the light guide plate 1. Then, the servo cylinder 6 resets, lifting the light guide plate 1. The second servo motor 39 drives the reciprocating screw 38 to rotate, so that the moving seat 40 moves along the reciprocating screw 38, so that the lower surface of the light guide plate 1 passes the cleaning roller 9. When the light guide plate 1 reaches the cleaning roller 9, the first servo motor 35 drives the rotating shaft 36 to rotate. The rotating shaft 36 drives the cleaning roller 9 to rotate, and the cleaning roller 9 drives the cleaning part 10 to rotate, so that the cleaning part 10... The lower surface of the light guide plate 1 is wiped to remove dust. After the light guide plate 1 has completely passed through the cleaning component 10, the moving plate 4 is flipped. The moving plate 4 drives the support rod 5 to flip, thereby causing the light guide plate 1 to flip. The flipped light guide plate 1 is located on the second conveyor line 42. The suction cup 7 is released, and the light guide plate 1 is conveyed to the first conveyor line 41 through the second conveyor line 42. Then, it is sent to the laser engraving station 3 through the first conveyor line 41. The laser engraving work on the light guide plate 1 is completed through the laser engraving station 3. Then, the moving plate 4 and the moving seat 40 are reset, and the next light guide plate 1 is processed. The flipping of the movable plate 4 is existing technology. Specifically, a third servo motor 43 can be set on the movable seat 40. The third servo motor 43 drives the movable seat 40 to flip, thereby realizing the flipping of the movable plate 4. A gap is left between the second conveyor line 42 and the first conveyor line 41 to facilitate the support rod 5 to pass through when the light guide plate 1 is flipped. The laser engraving station 3 is existing technology and can complete the laser engraving work on the light guide plate 1. It is not an innovation point in this application and will not be described in detail. As the lower surface of the light guide plate 1 moves along the top of the cleaning roller 9, the first servo motor 35 first drives the cleaning roller 9 to rotate, which in turn drives the cleaning component 10 to rotate. This causes the cleaning component 10 to wipe the lower surface of the light guide plate 1 when it reaches its highest position, removing dust and impurities from the surface of the light guide plate 1. A receiving box 46 is provided below the cleaning roller 9 to collect the dust and impurities removed by the cleaning component 10, and to facilitate the falling of dust and impurities adhering to the cleaning component 10 into the receiving box 46 during rotation. Because the surface of the light guide plate 1 is smooth, some debris will adhere to its surface. The surface is relatively difficult to clean, and wiping with the cleaning component 10 alone is not sufficient to remove the impurities. To further improve the impurity removal effect of the cleaning component 10, the suction groove 12 is connected to an external suction pump 45 through the suction pipe 44. The suction pump 45 sucks air into the suction groove 12. When the cleaning roller 9 rotates, it drives the slide rod 15 to rotate, causing the slide rod 15 to rotate along the annular slide groove 16. The slide rod 15 drives the first sliding protrusion 18 to slide along the first track groove 19. When the first sliding protrusion 18 slides from the first translation groove to the first right-moving part 192 and slides along the first right-moving part 192, as... Figure 5 and Figure 6 As shown, the first sliding protrusion 18 drives the slide rod 15 to move to the right, the slide rod 15 drives the sealing plate 14 to move to the right, and the sealing plate 14 drives the through groove 17 to move to the right, so that the through groove 17 is connected to the ventilation groove 13, thereby connecting the adsorption hole 11 to the suction groove 12, so that a negative pressure adsorption effect is generated at the adsorption hole 11. The cleaning component 10 is made of a dust-free cloth with good air permeability, so that the suction groove 12 generates an adsorption force on the surface of the cleaning component 10, so that the cleaning component 10 can adsorb impurities while wiping the lower surface of the light guide plate 1, thereby improving the cleaning effect of the cleaning component 10. In this technical solution, the first right-moving part 192 is set at... Figure 7 At position a, the first left-shifting part 194 is positioned at position b, and the second translational part 193 is positioned between positions a and b. This allows the sealing plate 14 to open the adsorption hole 11 and perform adsorption work after the adsorption hole 11 rotates clockwise to position a. When the adsorption hole 11 rotates clockwise to position b, the sealing plate 14 closes the adsorption hole 11 and stops adsorption work. By releasing the adsorption state, when the cleaning part 10 rotates to the lower half of the cleaning roller 9, the impurities wiped off the surface of the cleaning part 10 can easily fall into the receiving box 46 through centrifugal force and gravity. In this technical solution, the perforated plate 20 can support the cleaning part 10, so that when the adsorption hole 11 adsorbs the cleaning part 10, the cleaning part 10 will not be adsorbed into the adsorption hole 11. The perforated plate 20 can be ventilated, so as not to affect the adsorption force generated by the adsorption hole 11 on the surface of the cleaning part 10. In addition, ten sets of slide rods 15 and sealing plates 14 are provided respectively, and the adsorption holes 11 are evenly distributed on the surface of the cleaning roller 9, thereby increasing the fullness of adsorption.

[0036] In Example 2, when the cleaning component 10 rotates to the lower half of the cleaning roller 9, because the cleaning component 10 is made of soft material, impurities easily adhere to its surface. Due to centrifugal force and gravity alone, the impurities wiped from the surface of the cleaning component 10 cannot be fully removed, and a small amount of impurities may remain attached to its surface, affecting the subsequent wiping effect on the light guide plate 1. To address this issue, this example is an improvement based on Example 1. For details, please refer to... Figures 1-14 The cleaning component 10 has a first connecting ring 21 fixed inside, the cleaning roller 9 has a second connecting ring 22 slidably disposed inside, a connecting rope 23 is fixed between the first connecting ring 21 and the second connecting ring 22, an adjusting rod 24 is fixed on the second connecting ring 22, and a first sliding groove 25 is provided on the surface of the sealing plate 14 for the adjusting rod 24 to slide. A limiting component for changing the height of the adjusting rod 24 is provided in the first sliding groove 25. The limiting component includes a second sliding protrusion 26 fixed to the adjusting rod 24. The interior of the first sliding groove 25 is provided with a second track groove 27 for the second sliding protrusion 26 to slide. The second track groove 27 includes a first horizontal part 271, a first descending part 272 and a second horizontal part 273 that are connected together. The adsorption hole 11 is elastically provided with a tapping post 30 for tapping the cleaning part 10. The end of the tapping post 30 is fixed with a drive rod 31. The sealing plate 14 is provided with a second sliding groove 32 for the drive rod 31 to slide. The end of the drive rod 31 is fixed with a third sliding protrusion 33. The inner wall of the second sliding groove 32 is provided with a fourth track groove 34 for the third sliding protrusion 33 to slide. The fourth track groove 34 includes a fifth horizontal part 341, a power storage part 342, a striking part 343 and a reset part 344 connected together, and a rotating plate 345 is elastically provided at the connection between the reset part 344 and the power storage part 342.

[0037] In this technical solution, when the slide rod 15 rotates clockwise from point b to point a, the first sliding protrusion 18 slides along the second leftward displacement portion 195, causing the first sliding protrusion 18 to drive the slide rod 15 to move to the left. The leftward movement of the slide rod 15 then drives the sealing plate 14 to move to the left. At this time, if... Figure 11 As shown, the sealing plate 14 moves to the left, causing the adjusting rod 24 to slide within the first groove 25. The adjusting rod 24 drives the second sliding protrusion 26 to slide downwards along the first descending portion 272 of the second track groove 27, causing the adjusting rod 24 to move downwards. Figure 9 and Figure 10 As shown, the adjusting rod 24 moves downward, causing the second connecting ring 22 to move downward. The second connecting ring 22 moves downward, causing the connecting rope 23 to move. The connecting rope 23 pulls the first connecting ring 21 downward, causing the first connecting ring 21 to pull the cleaning component 10 downward, thereby tightening the cleaning component 10 between the two sets of first connecting rings 21. The vibration generated by the cleaning component 10 when it is tightened facilitates the removal of impurities from the surface of the cleaning component 10, further improving the cleaning effect of the surface of the cleaning component 10. When the slide rod 15 slides to the second rightward movement part 197, the slide rod 15 moves to the right to reset, and the slide rod 15 drives the sealing plate 14 to move to the right to reset, so that the adjusting rod 24 moves upward to reset, releasing the tension of the second connecting ring 22 on the first connecting ring 21, and releasing the tension of the surface of the cleaning component 10. The cleaning component 10 is made of knitted clean cloth, which has elasticity when stretched. When the tension of the surface of the cleaning component 10 is released, it can be restored, thereby driving the first connecting ring 21 and the connecting rope 23 to reset. To further improve the cleaning effect on the surface of the cleaning component 10 and facilitate the removal of impurities, after the first connecting ring 21 tightens the surface of the cleaning component 10, the second sliding protrusion 26 slides along the wave portion 196. First, the first sliding protrusion 18 slides along the third leftward displacement portion 1961, causing the slide rod 15 to continue moving to the left. The slide rod 15 drives the sealing plate 14 to continue moving to the left. At this time, the second sliding protrusion 26 slides along the second horizontal portion 273, keeping the position of the adjusting rod 24 unchanged, so that the cleaning component 10 remains taut. When the 18th slides along the third leftward sliding part 1961, the slide rod 15 drives the sealing plate 14 to move to the left, causing the drive rod 31 to slide along the second sliding groove 32. The drive rod 31 drives the third sliding protrusion 33 to slide downward along the power storage part 342 of the fourth track groove 34, causing the third sliding protrusion 33 to drive the drive rod 31 to move downward. The drive rod 31 drives the striking column 30 to move downward. A spring 47 is fixed between the striking column 30 and the inner wall of the adsorption hole 11. The downward movement of the striking column 30 compresses the spring 47, causing the spring 47 to store power. When the third sliding protrusion 33 slides to the striking part... When part 343 is engaged, the third sliding protrusion 33 loses its resistance, and the spring 47 instantly releases its elastic force, causing the third sliding protrusion 33 to slide upward along the striking part 343. The third sliding protrusion 33 drives the drive rod 31 to move upward, and the drive rod 31 drives the striking column 30 to move upward, so that the striking column 30 is released instantaneously after being charged. This allows the striking column 30 to strike and tap the cleaning part 10 after it is tightened, thus facilitating the removal of impurities from the surface of the cleaning part 10. After the striking and tapping, the first sliding protrusion 18 moves along the third rightward portion of the wave part 196. Sliding 1962 causes the slide rod 15 to move the sealing plate 14 to the right, allowing the third sliding protrusion 33 to slide and reset along the reset part 344. In addition, when rotating clockwise, multiple sets of wave parts 196 are provided between point b and point a, allowing the slide rod 15 to move back and forth, thereby driving the sealing plate 14 to move back and forth. The sealing plate 14 moves back and forth, allowing the third sliding protrusion 33 to move back and forth along the fourth track groove 34, thereby enabling the striking column 30 to strike and tap the cleaning part 10 more than 10 times, resulting in a better cleaning effect. In this technical solution, when the sliding rod 15 moves the sealing plate 14 to the right, opening the adsorption hole 11, as follows: Figure 11 As shown, the sealing plate 14 moves to the right, causing the adjusting rod 24 to drive the second sliding protrusion 26 to slide along the first horizontal part 271 of the second track groove 27, as... Figure 13As shown, the sealing plate 14 moves to the right, causing the drive rod 31 to drive the third sliding protrusion 33 to slide along the fifth horizontal part 341 of the fourth track groove 34, thereby preventing the sealing plate 14 from being jammed by the adjusting rod 24 or the drive rod 31; when the second sliding protrusion 26 slides down to the second horizontal part 273, the third sliding protrusion 33 just slides to the top of the power storage part 342. When the third sliding protrusion 33 reciprocates along the power storage part 342, the tapping part 343 and the reset part 344, the second sliding protrusion 26 reciprocates along the second horizontal part 273, thereby keeping the cleaning part 10 taut during tapping. In this technical solution, the inner wall of the sealing plate 14 is provided with a rotating groove 346, and a rotating rod 347 is rotatably arranged inside the rotating groove 346. A rotating plate 345 is fixedly sleeved on the circumference of the rotating rod 347. A torsion spring 348 is movably sleeved on the circumference of the rotating rod 347. The c-end of the torsion spring 348 is fixed to the surface of the rotating plate 345, and the d-end of the torsion spring 348 is fixed to the inner wall of the rotating groove 346. A limit block 349 is fixed to the surface of the rotating plate 345, and a stop block 3410 is fixed to the inner wall of the rotating groove 346. Figure 14 As shown, when the third sliding protrusion 33 slides from the fifth horizontal part 341 to the power storage part 342, the rotating plate 345 cannot be pressed due to the resistance of the stop block 3410 against the limiting block 349. Figure 14 The rotating plate 345 rotates clockwise, limiting the third sliding protrusion 33 so that it can only slide downwards along the storage part 342. When the third sliding protrusion 33 slides to the left along the reset part 344, it abuts against the rotating plate 345. At this time, the rotating plate 345 can press... Figure 14 The rotating plate 345 rotates counterclockwise from its original position, causing the torsion spring 348 to store force until the third sliding protrusion 33 no longer contacts the rotating plate 345. At this point, the torsion spring 348 releases its force, allowing the rotating plate 345 to return to its original position. Figure 14 In this state, the third sliding protrusion 33 completes the cyclic reciprocating motion along the power storage part 342, the striking part 343 and the reset part 344.

[0038] Example 3: This example presents another technical solution for the limiting component. For details, please refer to [link / reference needed]. Figures 1-14 The limiting component includes a limiting ball 28 fixed to the adjusting rod 24. The bottom of the first slide groove 25 is provided with a third track groove 29 for the limiting ball 28 to slide. The third track groove 29 includes a third horizontal part 291, a second descending part 292 and a fourth horizontal part 293 connected in series.

[0039] In this technical solution, such as Figure 12As shown, the sealing plate 14 moves to the left, causing the adjusting rod 24 to slide within the first groove 25. The adjusting rod 24 drives the limiting ball 28 to slide downward along the second descending part 292 of the third track groove 29, causing the adjusting rod 24 to move downward. The downward movement of the adjusting rod 24 drives the second connecting ring 22 to move downward, thereby completing the tightening action of the cleaning component 10. By sliding the limiting ball 28 along the third horizontal part 291 of the third track groove 29, the sealing plate 14 is prevented from being jammed by the adjusting rod 24. When the third sliding protrusion 33 reciprocates along the power storage part 342, the tapping part 343 and the reset part 344, the limiting ball 28 reciprocates along the fourth horizontal part 293, thereby keeping the cleaning component 10 in a taut state during tapping.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A laser engraving device for processing light guide plates, comprising a worktable (2) for placing a light guide plate (1) and a laser engraving station (3), characterized in that: A rotating movable plate (4) is provided between the workbench (2) and the laser engraving station (3). A support rod (5) is fixed on the movable plate (4). A servo electric cylinder (6) is fixed on the support rod (5). A suction cup (7) for adsorbing and fixing the light guide plate (1) is fixed at the output end of the servo electric cylinder (6). The workbench (2) has a side plate (8) at one end. A cleaning roller (9) is rotatably mounted on the side plate (8). A cleaning component (10) is sleeved on the surface of the cleaning roller (9). An adsorption hole (11) is opened on the surface of the cleaning roller (9). An air suction groove (12) is opened inside the cleaning roller (9). A ventilation groove (13) is provided between the air suction groove (12) and the adsorption hole (11). A sealing plate (14) is slidably mounted inside the cleaning roller (9). The sealing plate (14) opens or closes the ventilation groove (13) by reciprocating left and right.

2. The laser engraving equipment for processing light guide plates according to claim 1, characterized in that: The end of the sealing plate (14) is fixed with a sliding rod (15). The surface of the side plate (8) is provided with an annular groove (16) for the sliding rod (15) to slide. The sealing plate (14) is provided with a through groove (17). The sliding rod (15) moves the sealing plate (14) by sliding inside the annular groove (16), so that the through groove (17) communicates with the ventilation groove (13).

3. The laser engraving equipment for light guide plate processing according to claim 2, characterized in that: The end of the slide rod (15) is fixed with a first sliding protrusion (18), and the inner wall of the annular groove (16) is provided with a first trajectory groove (19) for the first sliding protrusion (18) to slide. The first trajectory groove (19) includes a first translation part (191), a first right translation part (192), a second translation part (193), a first left translation part (194), a second left translation part (195), a wave part (196), and a second right translation part (197) connected together. The wave part (196) includes a third left translation part (1961) and a third right translation part (1962) connected together.

4. The laser engraving equipment for processing light guide plates according to claim 3, characterized in that: The end of the adsorption hole (11) is fixed with a perforated plate (20) for supporting the cleaning component (10).

5. The laser engraving equipment for processing light guide plates according to claim 1, characterized in that: The cleaning component (10) has a first connecting ring (21) fixed inside, and the cleaning roller (9) has a second connecting ring (22) slidably disposed inside. A connecting rope (23) is fixed between the first connecting ring (21) and the second connecting ring (22). An adjusting rod (24) is fixed on the second connecting ring (22). The surface of the sealing plate (14) has a first sliding groove (25) for the adjusting rod (24) to slide. A limiting component for changing the height of the adjusting rod (24) is disposed in the first sliding groove (25).

6. The laser engraving equipment for processing light guide plates according to claim 5, characterized in that: The limiting component includes a second sliding protrusion (26) fixed to the adjusting rod (24). The first groove (25) has a second track groove (27) for the second sliding protrusion (26) to slide. The second track groove (27) includes a first horizontal part (271), a first descending part (272), and a second horizontal part (273) that are connected together.

7. The laser engraving equipment for processing light guide plates according to claim 5, characterized in that: The limiting component includes a limiting ball (28) fixed to the adjusting rod (24). The bottom of the first slide groove (25) is provided with a third track groove (29) for the limiting ball (28) to slide. The third track groove (29) includes a third horizontal part (291), a second descending part (292), and a fourth horizontal part (293) that are connected together.

8. The laser engraving equipment for processing light guide plates according to claim 1, characterized in that: The adsorption hole (11) is elastically provided with a tapping post (30) for tapping the cleaning component (10). The end of the tapping post (30) is fixed with a driving rod (31). The sealing plate (14) is provided with a second sliding groove (32) for the driving rod (31) to slide. The end of the driving rod (31) is fixed with a third sliding protrusion (33). The inner wall of the second sliding groove (32) is provided with a fourth trajectory groove (34) for the third sliding protrusion (33) to slide.

9. The laser engraving equipment for processing light guide plates according to claim 8, characterized in that: The fourth track groove (34) includes a fifth horizontal part (341), a power storage part (342), a striking part (343), and a reset part (344) connected in series. A rotating plate (345) is elastically provided at the connection between the reset part (344) and the power storage part (342).

10. The laser engraving equipment for processing light guide plates according to claim 1, characterized in that: A first servo motor (35) is fixed to the surface of the side plate (8). A rotating shaft (36) is fixed to the output end of the first servo motor (35). The end of the cleaning roller (9) is fixedly connected to the end of the rotating shaft (36). A column (37) is fixed to the outer surface of the workbench (2). A reciprocating screw (38) is rotatably mounted on the column (37). A second servo motor (39) connected to the reciprocating screw (38) is fixed to the surface of the column (37). A movable seat (40) is threaded onto the reciprocating screw (38). The movable plate (4) is flip-mounted on the movable seat (40). A first conveyor line (41) is provided on the laser engraving station (3). A second conveyor line (42) is provided at the end of the first conveyor line (41).

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