Multi-station LED light guide plate laser cutting device
Patent Information
- Application Number
- CN202522141172.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-09-29
- Estimated Expiration
- 2035-10-10
AI Technical Summary
传统加工如印刷、机械雕刻精度低，边缘易毛糙，难适配复杂纹路；而激光切割能精准加工导光网点与外形，兼顾精度与效率，成为导光板批量加工的关键技术
1、通过电机驱动拨盘旋转，利用拨盘上的圆销与槽轮的径向槽配合，带动槽轮做精准间歇旋转，该旋转运动通过槽轮输出轴传递至上方的多工位装载机构，使装载圆盘上的托板依次间歇停留于上料位、激光切割室、冷却室及出料口处，实现“上料－切割－冷却－出料”全工序的自动化连续流转，各工位无缝衔接，有效减少工序间的等待时间，显著提升整体加工效率；
Smart Images
Figure CN224808694U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of LED light guide plate processing technology, specifically a multi-station LED light guide plate laser cutting device. Background Technology
[0002] LED light guide plates are core components of LED lighting and display devices, and are mostly made of PMMA material. They transform LED point or line light sources into uniform surface light sources through surface light guide dots. Traditional processing methods such as printing and mechanical engraving have low precision, are prone to rough edges, and are difficult to adapt to complex patterns; while laser cutting can precisely process the light guide dots and shapes, balancing precision and efficiency, and has become a key technology for mass production of light guide plates.
[0003] Existing LED light guide plate laser cutting equipment is mostly designed for single-station operation. The cutting and cooling processes must be completed sequentially, resulting in long waiting times between processes, low processing volume per unit time, and difficulty in adapting to mass production. Furthermore, the positioning of the light guide plate relies heavily on manual adjustment, which is prone to deviations in cutting accuracy due to operational errors. This requires additional manpower, increasing labor costs and scrap rates, resulting in a long processing cycle and low overall efficiency. Utility Model Content
[0004] To overcome the above-mentioned defects, this utility model provides a multi-station LED light guide plate laser cutting device, which solves the problems existing in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-station LED light guide plate laser cutting device, comprising a device housing, wherein a feed inlet, an observation window, an exhaust vent, and a discharge outlet are respectively provided on the four sides of the device housing; a control panel is provided on the outer wall of the device housing directly below the feed inlet, and a receiving platform is fixedly connected to the outer wall of the device housing directly below the discharge outlet; a laser cutting chamber and a cooling chamber are fixedly connected to the top of the device housing; a laser cutting assembly for cutting the light guide plate is provided in the laser cutting chamber; a cooling assembly for cooling the workpiece is provided in the cooling chamber; a discharge suction cup is provided on the top of the device housing corresponding to the discharge outlet; and a drive mechanism and a multi-station loading mechanism are also provided inside the device housing.
[0006] As a further embodiment of this utility model: the driving mechanism includes a motor fixedly installed inside the bottom of the device housing and a transmission box fixedly connected to the bottom of the device housing via four support legs. The output shaft of the motor passes through the bottom of the transmission box and is coaxially fixedly connected to a dial. A round pin is fixedly connected to the free end of the dial. A locking arc is coaxially fixedly connected to the upper end of the dial. A grooved wheel is rotatably connected inside the transmission box.
[0007] As a further embodiment of this utility model: the side of the grooved wheel is provided with a locking concave arc that matches the locking arc contour, and four radial grooves are evenly distributed along its circumference on the grooved wheel.
[0008] As a further embodiment of this utility model: the size of the round pin is adapted to the width and depth of the radial groove to ensure that the round pin can stably drive the groove wheel to rotate when it is embedded in the radial groove, and the output shaft of the groove wheel extends vertically upward through the top of the transmission box and upward.
[0009] As a further embodiment of this utility model: the multi-station loading mechanism includes a loading disc coaxially fixedly connected to the output shaft of the Geneva wheel. Four pallets evenly and symmetrically distributed along its circumference are fixedly connected to the upper end of the loading disc. A dual-axis motor is fixedly installed at the bottom of the pallet. Threaded rods are fixedly connected to both ends of the dual-axis motor. Two sliding rods are slidably connected to the pallet. A strip-shaped through groove is opened on the pallet corresponding to the position of the threaded rod. The bottom of the two sliding rods passes through the strip-shaped through groove and is threadedly connected to the threaded rod on the corresponding side. Sliding shafts are slidably embedded at both ends of the sliding rods. An elastic clamping rod for clamping the light guide plate is fixedly connected to one end of the two sliding shafts. A buffer spring is sleeved on the outside of the sliding shaft.
[0010] As a further embodiment of this utility model: the two ends of the buffer spring abut against the slide bar and the elastic clamping bar, respectively.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. The dial is driven by a motor to rotate. The pin on the dial engages with the radial groove of the grooved wheel, which drives the grooved wheel to rotate precisely and intermittently. This rotational motion is transmitted to the multi-station loading mechanism above through the output shaft of the grooved wheel. The pallet on the loading disc stops intermittently at the loading position, laser cutting chamber, cooling chamber and discharge port in sequence, realizing the automated continuous flow of the entire process of "loading-cutting-cooling-discharging". The stations are seamlessly connected, effectively reducing the waiting time between processes and significantly improving the overall processing efficiency. 2. When the dual-axis motor at the bottom of the tray is working, it can synchronously drive the threaded rods at both ends to rotate, which in turn drives the slide rods connected to the threaded rods to move in opposite directions along the strip groove of the tray. With the help of the buffer spring and elastic clamping rod on the outside of the slide shaft, the light guide plate can be self-adaptively clamped and its position calibrated. There is no need for manual alignment, which reduces the positioning error of manual operation, ensures cutting accuracy, reduces manpower input, and improves the automation level of the device. Attached Figure Description
[0012] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 This is a three-dimensional structural diagram of the transmission box of this utility model; Figure 5 This is a three-dimensional structural diagram of the multi-station loading mechanism of this utility model; Figure 6 This is a three-dimensional structural diagram of the multi-station loading mechanism of this utility model from another perspective.
[0013] In the diagram: 1. Device casing; 2. Feed inlet; 3. Observation window; 4. Exhaust vent; 5. Discharge outlet; 6. Control panel; 7. Receiving platform; 8. Laser cutting chamber; 9. Cooling chamber; 10. Laser cutting assembly; 11. Cooling assembly; 12. Discharge suction cup; 13. Motor; 14. Transmission box; 15. Dial; 16. Circular pin; 17. Locking arc; 18. Grooved wheel; 19. Locking concave arc; 20. Radial groove; 21. Loading disc; 22. Support plate; 23. Dual-axis motor; 24. Threaded rod; 25. Sliding rod; 26. Strip groove; 27. Sliding shaft; 28. Elastic clamping rod; 29. Buffer spring. Detailed Implementation
[0014] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0015] like Figure 1 - Figure 6 As shown, this utility model provides a technical solution: A multi-station LED light guide plate laser cutting device includes a device housing 1. The four walls of the device housing 1 are respectively provided with a feed inlet 2, an observation window 3, an exhaust vent 4, and a discharge outlet 5. A control panel 6 is provided on the outer wall of the device housing 1 directly below the feed inlet 2, and a receiving platform 7 is fixedly connected to the outer wall of the device housing 1 directly below the discharge outlet 5. A laser cutting chamber 8 and a cooling chamber 9 are fixedly connected to the top of the device housing 1. The laser cutting chamber 8 is provided with a laser cutting component 10 for cutting the light guide plate, and the cooling chamber 9 is provided with a cooling component 11 for cooling the workpiece. A discharge suction cup 12 is provided on the top of the device housing 1 corresponding to the discharge outlet 5. The device housing 1 is also provided with a drive mechanism and a multi-station loading mechanism. Specifically, the light guide plate to be processed is placed into the feed port 2 of the device housing 1. After the equipment is started via the control panel 6, the multi-station loading mechanism receives the light guide plate and completes its positioning. Subsequently, driven by the drive mechanism, the light guide plate flows sequentially to the laser cutting chamber 8 for cutting, then enters the cooling chamber 9 for cooling, and finally is transferred to the discharge port 5. The finished product is then delivered to the receiving platform 7 by the discharge suction cup 12. During the process, the observation window 3 allows observation of the working conditions, and the exhaust port 4 is used to discharge the gas generated in the cooling chamber 9, realizing a continuous processing flow for the light guide plate to be processed. The drive mechanism includes a motor 13 fixedly installed inside the bottom of the device housing 1 and a transmission box 14 fixedly connected to the bottom of the device housing 1 via four legs. The output shaft of the motor 13 passes through the bottom of the transmission box 14 and is coaxially fixedly connected to a dial 15. A pin 16 is fixedly connected to the free end of the dial 15. A locking arc 17 is coaxially fixedly connected to the upper end of the dial 15. A grooved wheel 18 is rotatably connected inside the transmission box 14. The side of the grooved wheel 18 is provided with a locking concave arc 19 that matches the contour of the locking arc 17. Four radial grooves 20 are evenly distributed along its circumference on the grooved wheel 18. The size of the pin 16 matches the width and depth of the radial grooves 20 to ensure that the pin 16 can stably drive the grooved wheel 18 to rotate when it is embedded in the radial grooves 20. The output shaft of the grooved wheel 18 passes vertically upward through the top of the transmission box 14 and extends upward. Specifically, after the motor 13 starts, its output shaft drives the dial 15 fixed at the end of the shaft to rotate synchronously within the transmission box 14. The pin 16, moving with the dial 15, gradually approaches the grooved wheel 18. When the pin 16 precisely engages one of the radial grooves 20 of the grooved wheel 18, the pin 16 pushes the grooved wheel 18 to rotate around its own axis through the force of the groove wall. Simultaneously, the locking arc 17 at the upper end of the dial 15 remains tightly fitted with the locking concave arc 19 on the side of the grooved wheel 18, preventing radial wobbling or offset during rotation and ensuring coaxiality. When the pin 16 continues to rotate with the dial 15 until it disengages from the current radial groove 20, the locking arc 17 remains engaged with the locking concave arc 19 on the side of the grooved wheel 18. The anti-concave arc 19 remains in contact, at which point the grooved wheel 18 loses its driving force and remains stationary until the round pin 16 rotates to the next radial groove 20 embedded in the grooved wheel 18, which pushes the grooved wheel 18 to rotate again, forming an intermittent motion cycle of "rotation-stationary". The output shaft of the grooved wheel 18 transmits this intermittent rotational motion to the coaxially fixed loading disc 21, causing the loading disc 21 to drive the four upper pallets 22 to rotate synchronously and intermittently. Each rotation allows one pallet 22 to precisely stop at the feeding position, below the laser cutting chamber 8, below the cooling chamber 9, or below the discharge port 5, realizing the orderly switching of each station and providing stable station support for subsequent continuous processing. The multi-station loading mechanism includes a loading disc 21 coaxially fixedly connected to the output shaft of the Geneva wheel 18. Four support plates 22 evenly and symmetrically distributed along its circumference are fixedly connected to the upper end of the loading disc 21. A dual-axis motor 23 is fixedly installed at the bottom of the support plate 22. Threaded rods 24 are fixedly connected to both ends of the dual-axis motor 23. Two sliding rods 25 are slidably connected to the support plate 22. A strip-shaped through groove 26 is opened on the support plate 22 at the position corresponding to the threaded rod 24. The bottom of the two sliding rods 25 passes through the strip-shaped through groove 26 and is threadedly connected to the threaded rod 24 on the corresponding side. Sliding shafts 27 are slidably embedded at both ends of the sliding rods 25. An elastic clamping rod 28 for clamping the light guide plate is fixedly connected to one end of the two sliding shafts 27. A buffer spring 29 is sleeved on the outside of the sliding shaft 27. The two ends of the buffer spring 29 abut against the sliding rod 25 and the elastic clamping rod 28, respectively. Specifically, the dual-axis motor 23 at the bottom of the support plate 22 starts, driving the threaded rods 24 at both ends to rotate, causing the two sliding rods 25 passing through the strip groove 26 to move in opposite directions along the strip groove 26. The sliding shafts 27 at both ends of the sliding rods 25, together with the outer buffer springs 29, push the elastic clamping rods 28 to adaptively clamp the light guide plate and achieve precise positioning.
[0016] The working principle of this utility model is as follows: First, the LED light guide plate to be processed is put into the feed port 2 of the device housing 1. The device is started through the control panel 6 on the outer wall of the device housing 1, which is directly below the feed port 2. The tray 22 of the multi-station loading mechanism first receives the light guide plate. Then, the dual-axis motor 23 at the bottom of the tray 22 is started, which drives the threaded rods 24 at both ends to rotate. This causes the two sliding rods 25 passing through the strip groove 26 on the tray 22 to move towards each other along the tray 22. The sliding shafts 27 at both ends of the sliding rods 25 cooperate with the buffer springs 29 on the outer side to push the elastic clamping rods 28 to adaptively clamp the light guide plate, thus completing the precise positioning of the light guide plate. Secondly, the drive mechanism starts working. The motor 13, which is fixed at the bottom of the device housing 1, starts. Its output shaft goes vertically upward through the bottom of the transmission box 14, driving the coaxially fixed dial 15 to rotate in the transmission box 14. The round pin 16 at the free end of the dial 15 gradually embeds into the radial groove 20 of the grooved wheel 18. Under the action of the round pin 16 and the groove wall, the grooved wheel 18 is driven to rotate. At the same time, the locking arc 17 at the upper end of the dial 15 and the locking concave arc 19 on the side of the grooved wheel 18 are closely fitted to prevent the grooved wheel 18 from shaking. When the round pin 16 is disengaged from the radial groove 20, the grooved wheel 18 enters a stationary state, forming an intermittent cycle of "rotation-stationary". The output shaft of the grooved wheel 18 then transmits the intermittent motion to the coaxially fixed loading disc 21, so that the four pallets 22 on the loading disc 21 are accurately transferred to different work positions in sequence. Furthermore, when the tray 22 carrying the light guide plate moves to the laser cutting chamber 8 fixed at the top inside the device housing 1, the laser cutting component 10 in the laser cutting chamber 8 precisely cuts the light guide plate. After the cutting is completed, the tray 22 continues to move to the cooling chamber 9. The cooling component 11 in the cooling chamber 9 quickly cools down the cut light guide plate to prevent the light guide plate from deforming due to residual heat. Finally, the cooled light guide plate flows with the tray 22 to the position corresponding to the discharge port 5 at the top of the device housing 1. The discharge suction cup 12 grabs the light guide plate and sends it to the discharge port 5. Finally, the finished product is discharged from the discharge port 5 and falls on the receiving platform 7 directly below the discharge port 5 on the outer wall of the device housing 1.
[0017] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A multi-station LED light guide plate laser cutting device, characterized in that, The device includes a housing (1), on which a feed inlet (2), an observation window (3), an exhaust vent (4), and a discharge outlet (5) are respectively provided on the four walls. A control panel (6) is provided on the outer wall of the housing (1) directly below the feed inlet (2), and a receiving platform (7) is fixedly connected to the position directly below the discharge outlet (5). A laser cutting chamber (8) and a cooling chamber (9) are fixedly connected to the top inside the housing (1). A laser cutting assembly (10) for cutting light guide plates is provided in the laser cutting chamber (8), and a cooling assembly (11) for cooling the workpiece is provided in the cooling chamber (9). A discharge suction cup (12) is provided on the top inside the housing (1) corresponding to the discharge outlet (5). A drive mechanism and a multi-station loading mechanism are also provided inside the housing (1).
2. The multi-station LED light guide plate laser cutting device according to claim 1, characterized in that: The drive mechanism includes a motor (13) fixedly installed at the bottom of the device housing (1) and a transmission box (14) fixedly connected to the bottom of the device housing (1) via four legs. The output shaft of the motor (13) passes through the bottom of the transmission box (14) and is coaxially fixedly connected to a dial (15). A round pin (16) is fixedly connected to the free end of the dial (15). A locking arc (17) is coaxially fixedly connected to the upper end of the dial (15). A grooved wheel (18) is rotatably connected inside the transmission box (14).
3. The multi-station LED light guide plate laser cutting device according to claim 2, characterized in that: The grooved wheel (18) has a locking concave arc (19) on its side that matches the contour of the locking arc (17), and four radial grooves (20) are evenly distributed along its circumference on the grooved wheel (18).
4. The multi-station LED light guide plate laser cutting device according to claim 3, characterized in that: The dimensions of the round pin (16) are adapted to the width and depth of the radial groove (20) to ensure that the round pin (16) can stably drive the groove wheel (18) to rotate when it is embedded in the radial groove (20). The output shaft of the groove wheel (18) extends vertically upward through the top of the transmission box (14) and upward.
5. The multi-station LED light guide plate laser cutting device according to claim 4, characterized in that: The multi-station loading mechanism includes a loading disc (21) coaxially fixedly connected to the output shaft of the Geneva wheel (18). Four pallets (22) evenly and symmetrically distributed along its circumference are fixedly connected to the upper end of the loading disc (21). A dual-axis motor (23) is fixedly installed at the bottom of the pallet (22). Threaded rods (24) are fixedly connected to both ends of the dual-axis motor (23). Two sliding rods (25) are slidably connected to the pallet (22). A strip-shaped through groove (26) is opened on the pallet (22) corresponding to the position of the threaded rod (24). The bottom of the two sliding rods (25) passes through the strip-shaped through groove (26) and is threadedly connected to the threaded rod (24) on the corresponding side. A sliding shaft (27) is slidably embedded at both ends of the sliding rod (25). An elastic clamping rod (28) for clamping the light guide plate is fixedly connected to one end of the two sliding shafts (27). A buffer spring (29) is sleeved on the outside of the sliding shaft (27).
6. The multi-station LED light guide plate laser cutting device according to claim 5, characterized in that: The two ends of the buffer spring (29) abut against the slide bar (25) and the elastic clamp (28), respectively.