A multi-station flexible screen laser cutting machine

Abstract

This invention provides a multi-station flexible screen laser cutting machine with a compact structure, stable operation, and improved processing efficiency and cutting accuracy. The invention includes a machine base, at least two sliding platforms mounted on the machine base, a cutting mechanism located at the front of the machine base, a shooting mechanism located at the rear of the machine base, and a driving mechanism for moving the sliding platforms between the cutting mechanism and the shooting mechanism. Each sliding platform is equipped with a placement plate, and a negative pressure adsorption module is provided on the placement plate to adsorb the flexible screen onto the placement plate under negative pressure. Dust removal grooves are provided around the placement plate, and the bottom of the dust removal grooves is connected to a vacuum pump via a pipeline. The at least two sliding platforms operate alternately; when one sliding platform is located at the cutting mechanism for cutting, the other sliding platform is located at the shooting mechanism for shooting.

Description

Technical Field

[0001] This utility model relates to the field of flexible screen processing equipment technology, and in particular to a multi-station flexible screen laser cutting machine. Background Technology

[0002] Flexible screens, as a new generation of display technology, are widely used in smartphones, tablets, wearable devices and other fields. Because flexible screen materials are thin, soft and easily deformable, their processing requires extremely high precision, stability and cleanliness of the equipment.

[0003] In the manufacturing process, laser cutting has become a common method for processing flexible screens due to its advantages such as non-contact processing, high cutting precision, and small heat-affected zone. However, most existing flexible screen laser cutting equipment adopts a single-station structure, with processing and positioning detection performed sequentially. After each cut, the station must be released before being sent to the detection or imaging positioning stage, and then returned to the cutting station for the next round of processing. This serial operation mode makes it impossible for cutting and detection to be carried out in parallel, resulting in long processing cycles and low equipment utilization, which is not suitable for high-cycle, high-volume production needs.

[0004] The cutting process generates a large amount of fine dust. If it cannot be removed efficiently and promptly at the source, it will not only float and settle on the product surface, causing scratches or contamination, but may also enter the optical path system, reducing beam quality and affecting the focusing accuracy of the laser head, thus leading to a decrease in cutting quality and yield. However, in some existing equipment, the dust collection mechanism is independent of the cutting mechanism and cannot move synchronously with the cutting path, which easily creates dust control dead zones and results in unstable dust collection effects, making it particularly difficult to meet the precision processing requirements of flexible screens with high cleanliness.

[0005] In addition, to fix the workpiece and reduce displacement, some equipment sets up a placement plate on the sliding platform and evenly distributes adsorption holes on its surface to adsorb and fix the flexible screen by a negative pressure device. Other equipment sets up a dust collection port near the cutting area to collect dust. However, the two are often separate in function. When there are only adsorption holes, the dust collection effect is limited and the dust is easy to spread. When there are only dust collection ports, the clamping stability is insufficient and the workpiece is prone to micro-displacement during high-speed cutting. At the same time, if the dust collection port is placed at a position far away from the cutting area, although it reduces the obstruction of the laser beam path, it reduces the dust collection efficiency and increases the difficulty of dust accumulation and cleaning. Utility Model Content

[0006] In view of the shortcomings of the prior art, this utility model provides a multi-station flexible screen laser cutting machine, which aims to solve the problems of low processing efficiency, insufficient dust control and unstable workpiece fixation in the prior art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a multi-station flexible screen laser cutting machine, comprising a machine base, at least two sliding platforms mounted on the machine base, a cutting mechanism mounted at the front of the machine base, a shooting mechanism mounted at the rear of the machine base, and a driving mechanism for driving the sliding platforms to move between the cutting mechanism and the shooting mechanism. Each sliding platform is provided with a placement plate, and a negative pressure adsorption module is provided on the placement plate. The negative pressure adsorption module is used to adsorb the flexible screen onto the placement plate under negative pressure. Dust removal grooves are provided around the placement plate, and the bottom of the dust removal grooves is connected to a vacuum pump through a pipeline. The at least two sliding platforms operate alternately. When one sliding platform is located at the cutting mechanism for cutting processing, the other sliding platform is located at the shooting mechanism for shooting, so as to realize the alternation of processing and shooting, forming a continuous cycle processing flow.

[0008] Based on the above structural design, the beneficial effects of this utility model are as follows: By setting at least two sliding platforms that can operate alternately, the cutting station and the shooting positioning station can work synchronously, avoiding the waiting process that requires cutting and shooting to be performed sequentially in the traditional single-station structure. This significantly shortens the processing cycle, improves equipment utilization and production efficiency. The surface of the placement plate on the sliding platform is evenly distributed with adsorption holes, and dust removal grooves are provided around it. All of these are connected to a vacuum pump through pipelines. During the cutting process, it can not only firmly adsorb the workpiece and prevent it from shifting during high-speed cutting, but also efficiently remove dust as soon as it is generated, avoiding dust diffusion and deposition, and maintaining the cleanliness of the processing environment. This structure effectively improves cutting accuracy and yield, and is particularly suitable for precision processing of flexible screens with high cleanliness requirements. At the same time, the equipment has a compact structure, runs smoothly, can improve processing efficiency and cutting accuracy, achieves efficient dust control, and ensures stable positioning of the workpiece during processing, thus possessing good industrial application value.

[0009] Furthermore, the negative pressure adsorption module includes several adsorption holes evenly distributed on the placement plate and a negative pressure device that is connected to each adsorption hole.

[0010] Furthermore, each of the sliding platforms is provided with at least two placement plates opposite each other, and the shooting mechanism feeds back the path to be cut to the cutting mechanism through the image acquisition device.

[0011] Furthermore, a dual-head lateral displacement drive device is mounted on both the left and right ends of the machine platform. The front part of the dual-head lateral displacement drive device is provided with a first slide rail, and the rear part is provided with a second slide rail. The front output end of the dual-head lateral displacement drive device is connected to the cutting mechanism and drives the cutting mechanism to slide on the first slide rail. The rear output end of the dual-head lateral displacement drive device is connected to the shooting mechanism and drives the shooting mechanism to slide on the second slide rail.

[0012] Based on the above, since the two sliding platforms on the left and right sides operate alternately, when one sliding platform is located at the cutting mechanism for cutting, the other sliding platform is located at the shooting mechanism for shooting, realizing the alternation of processing and shooting, thus forming a continuous cycle processing flow. To meet the needs of this alternating operation mode, a double-headed lateral displacement drive device is set on the machine to accurately move the cutting mechanism and the shooting mechanism to the corresponding sliding platform, ensuring efficient connection between the cutting and shooting processes. This design not only ensures the accuracy and stability of the cutting and shooting position conversion, but also effectively improves the production cycle and equipment utilization rate, and significantly shortens the processing cycle, making it particularly suitable for the needs of large-scale, high-precision production of flexible screens.

[0013] Furthermore, the cutting mechanism includes a first transverse slider, a cutting head mounting bracket fixedly connected to the first transverse slider, a laser cutting head disposed in the cutting head mounting bracket, and a lifting electric cylinder connected to the other side of the cutting head mounting bracket. The lifting electric cylinder is used to drive the laser cutting head to move up and down in the vertical direction.

[0014] Based on the above, by setting a first transverse slider, a cutting head mounting bracket, a laser cutting head, and a lifting electric cylinder in the cutting mechanism, the laser cutting head can achieve precise positioning and adjustment in both the transverse and vertical directions. The first transverse slider ensures smooth movement of the cutting path, and the transmission connection between the lifting electric cylinder and the laser cutting head ensures flexible lifting and adjustment when cutting workpieces of different thicknesses, thereby improving the adaptability and accuracy of the cutting process. At the same time, this structural design, combined with the alternating operation of the sliding stage and the imaging mechanism, allows the cutting path to be dynamically adjusted according to the workpiece position data fed back by the imaging mechanism, ensuring that the cutting path highly matches the contour trajectory of the placement plate. This not only improves the cutting accuracy but also effectively reduces the impact of workpiece clamping errors on the processing quality, realizing efficient and high-precision continuous processing of flexible screens. Furthermore, a dust collection mechanism is provided below the cutting mechanism. The dust collection mechanism includes a dust collection hood and a support connecting frame. One end of the support connecting frame is fixedly connected to the dust collection hood, and the other end is fixedly connected to the bottom end of the first horizontal slider, so that the dust collection hood moves synchronously with the laser cutting head under the drive of the first horizontal slider. Dust collection holes are evenly distributed on the inner walls around the dust collection hood, and the dust collection hood is connected to the vacuum pump through a pipeline.

[0015] Based on the above, the dust collection mechanism located below the cutting mechanism fixes the dust collection hood to the bottom end of the first horizontal slider through a support connecting frame. This allows the dust collection hood to move synchronously with the laser cutting head under the drive of the first horizontal slider, ensuring that the dust collection port is always close to the cutting area. The dust collection hood has evenly distributed dust collection holes on its inner walls, which can suck up the dust generated during the cutting process from multiple angles and with high coverage. This effectively prevents dust from spreading outward and depositing on the workpiece surface. At the same time, the synchronization between the dust collection mechanism and the cutting path avoids dead zones in dust control, improves dust collection efficiency and the cleanliness of the cutting area. This not only protects the surface of the flexible screen from contamination but also reduces dust interference with the optical path system, thereby ensuring cutting quality and long-term stable operation of the equipment.

[0016] Furthermore, the dust cover adopts a hollow structure design to ensure that the light path of the cutting path is not blocked when the laser cutting head is performing cutting operations.

[0017] Based on the above, the dust collection mechanism adopts a hollow structure dust collection hood, which collects dust close to the cutting area without obstructing the optical path of the laser cutting head. This ensures that the laser beam can reach the workpiece surface without interference, thereby avoiding cutting deviations or a decrease in cutting quality caused by optical path obstruction. This hollow structure not only retains the dust collection capability of the dust collection hood, but also effectively reduces airflow turbulence caused by structural obstruction, improving the balance between dust collection effect and cutting accuracy. It is particularly suitable for precision machining scenarios of flexible screens with extremely high requirements for cutting path and beam quality.

[0018] Furthermore, the shooting mechanism includes a second horizontal slider, a camera mounting bracket fixedly connected to the second horizontal slider, a lifting drive device disposed on the camera mounting bracket, and a CCD camera installed at the output end of the lifting drive device.

[0019] Based on the above, the shooting mechanism drives the camera mounting bracket to move smoothly in the horizontal direction through the second horizontal slider, and cooperates with the lifting drive device installed on the camera mounting bracket to achieve precise lifting and lowering adjustment of the CCD camera in the vertical direction. This allows it to adapt to the shooting needs of flexible screen workpieces of different thicknesses and positions. This structure not only ensures the accurate correspondence between the shooting position and the processing area, but also improves the efficiency and stability of image acquisition while ensuring image clarity. It provides reliable data support for the subsequent generation of cutting paths, thereby effectively improving the overall processing accuracy and production cycle.

[0020] To more clearly illustrate the above-mentioned features of this utility model and the objectives it aims to achieve, the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 An enlarged schematic diagram of part A; Figure 3 This is a structural schematic diagram from another perspective of the present invention; Figure 4 This is a schematic diagram of the structure of the dust cover of this utility model. Detailed Implementation

[0022] like Figures 1-4 As shown, this utility model is a multi-station flexible screen laser cutting machine, including a machine base 1, at least two sliding platforms 2 disposed on the machine base 1, a cutting mechanism 3 disposed at the front of the machine base 1, a shooting mechanism 4 disposed at the rear of the machine base 1, and a driving mechanism 5 for driving the sliding platforms 2 to move between the cutting mechanism 3 and the shooting mechanism 4. Each sliding platform 2 is provided with a placement plate 21, and the placement plate 21 is provided with a negative pressure adsorption module 22. The negative pressure adsorption module 22 is used to adsorb the flexible screen onto the placement plate 21 under negative pressure. The placement plate 21 is provided with a dust removal groove 23 around its perimeter. The bottom of the dust removal groove 23 is connected to a vacuum pump through a pipeline. The at least two sliding platforms 2 operate alternately. When one sliding platform 2 is located at the cutting mechanism 3 for cutting processing, the other sliding platform 2 is located at the shooting mechanism 4 for shooting, so as to realize the alternation of processing and shooting, forming a continuous cycle processing flow.

[0023] The negative pressure adsorption module 22 includes a plurality of adsorption holes 221 evenly distributed on the placement plate 21 and a negative pressure device that is connected to the adsorption holes 221.

[0024] Each of the sliding platforms 2 has at least two placement plates 21 arranged opposite each other. The shooting mechanism 4 feeds back the path to be cut to the cutting mechanism 3 through the image acquisition device for cutting.

[0025] The machine base 1 is equipped with a double-headed lateral displacement drive device 11 at both ends. The front part of the double-headed lateral displacement drive device 11 is provided with a first slide rail 12 and the rear part is provided with a second slide rail 13. The front output end of the double-headed lateral displacement drive device 11 is connected to the cutting mechanism 3 and drives the cutting mechanism 3 to slide on the first slide rail 12. The rear output end of the double-headed lateral displacement drive device 11 is connected to the shooting mechanism 4 and drives the shooting mechanism 4 to slide on the second slide rail 13.

[0026] The cutting mechanism 3 includes a first transverse slider 31, a cutting head mounting bracket 32 ​​fixedly connected to the first transverse slider 31, a laser cutting head 33 disposed in the cutting head mounting bracket 32, and a lifting electric cylinder 34 connected to the other side of the cutting head mounting bracket 32. The lifting electric cylinder 34 is used to drive the laser cutting head 33 to rise and fall in the vertical direction. The first transverse slider 31 is adapted to the first slide rail 12 and connected to the front output end of the dual-head transverse displacement driving device 11.

[0027] Below the cutting mechanism 3, a dust collection mechanism 6 is provided. The dust collection mechanism 6 includes a dust collection hood 61 and a support connecting frame 62. One end of the support connecting frame 62 is fixedly connected to the dust collection hood 61, and the other end is fixedly connected to the bottom end of the first horizontal slider 31, so that the dust collection hood 61 moves synchronously with the laser cutting head 33 under the drive of the first horizontal slider 31. Dust collection holes 63 are evenly distributed on the inner walls of the dust collection hood 61. The dust collection hood 61 is connected to the vacuum pump through a pipeline. The dust collection hood 61 and the dust removal tank 23 share the same vacuum pump.

[0028] The dust cover 61 adopts a hollow structure design to ensure that the light path of the cutting path is not blocked when the laser cutting head 33 is performing cutting operations.

[0029] The shooting mechanism 4 includes a second horizontal slider 41, a mounting bracket 42 fixedly connected to the second horizontal slider 41, a lifting drive device 43 disposed on the mounting bracket 42, and a CCD camera 44 disposed at the output end of the lifting drive device 43. The second horizontal slider 41 is adapted to the second slide rail 13 and connected to the rear output end of the dual-head horizontal displacement drive device 11.

[0030] In summary, the specific embodiments of this utility model are as follows: The operator places the flexible screen workpiece to be processed on the placement plate 21 of the sliding stage 2. The suction holes 22 evenly distributed on the surface of the placement plate 21 generate suction under the action of the vacuum pump, which firmly fixes the workpiece in the processing position. At the same time, the dust removal tank 23 starts the dust removal function connected to the vacuum pump to remove the micro dust on the surface of the workpiece, ensuring the cleanliness and cutting accuracy of the processing.

[0031] When the sliding platform 2 moves to the working position of the shooting mechanism 4 under the drive of the driving mechanism 5, the CCD camera 44 of the shooting mechanism 4 adjusts its position under the action of the lifting drive device 43 and the double-head lateral displacement drive device 11 to take a global or partial picture of the workpiece. After the image is acquired, the processing system analyzes it and generates cutting path information. The path data is fed back to the control system of the cutting mechanism 3 for subsequent processing. At least two sliding platforms 2 operate alternately. When one sliding platform 2 is taking a picture at the shooting mechanism 4, the other sliding platform 2 has moved to the cutting mechanism 3 to perform cutting processing, thereby realizing the alternating operation of shooting and processing and improving production efficiency.

[0032] During the cutting process, the cutting mechanism 3 moves laterally along the first slide rail 12 under the drive of the double-headed lateral displacement drive device 11. The lifting electric cylinder 34 drives the laser cutting head 33 to move precisely up and down in the vertical direction and perform high-precision cutting operations according to the cutting path fed back by the shooting mechanism 4. During the cutting process, the dust suction hood 61 of the dust suction mechanism 6 is connected to the first lateral slider 31 through the support connecting frame 62 and moves synchronously with the laser cutting head 33. The dust suction holes 63 of the dust suction hood 61 continuously suck out the smoke and debris generated during the cutting process, ensuring the cutting area is clean and avoiding dust from affecting the cutting quality.

[0033] After cutting, the sliding platform 2 is moved to the unloading position by the drive mechanism 5. The operator removes the processed flexible screen workpiece and continues to take pictures and cut on another sliding platform 2. The entire production process forms a continuous cycle, which can adapt to the batch processing needs of flexible screens. Under the premise of compact structure and stable operation, this embodiment has achieved a significant improvement in processing efficiency and cutting accuracy. At the same time, it has good dust control effect and stable workpiece fixing ability, and is suitable for large-scale industrial production.

[0034] The above description is only the optimal solution embodiment of this utility model and is not intended to limit this utility model. Various modifications or substitutions made by those skilled in the art to this utility model without departing from the essence and protection scope of this utility model should also be within the protection scope of this utility model.

Claims

1. A multi-station flexible screen laser cutting machine, characterized in that: The system includes a machine base (1), at least two sliding platforms (2) on the machine base (1), a cutting mechanism (3) at the front of the machine base (1), a shooting mechanism (4) at the rear of the machine base (1), and a driving mechanism (5) for driving the sliding platforms (2) to move between the cutting mechanism (3) and the shooting mechanism (4). Each sliding platform (2) is provided with a placement plate (21), and a negative pressure adsorption module (22) is provided on the placement plate (21). The negative pressure adsorption module (22) is used to adsorb the flexible screen onto the placement plate (21) under negative pressure. A dust removal groove (23) is provided around the placement plate (21). The bottom of the dust removal groove (23) is connected to a vacuum pump through a pipeline. At least two sliding platforms (2) operate alternately. When one sliding platform (2) is located at the cutting mechanism (3) for cutting, the other sliding platform (2) is located at the shooting mechanism (4) for shooting, so as to realize the alternation of processing and shooting, forming a continuous cycle processing flow.

2. The multi-station flexible screen laser cutting machine according to claim 1, characterized in that: The negative pressure adsorption module (22) includes a number of adsorption holes (221) evenly distributed on the placement plate (21) and a negative pressure device that is connected to the adsorption holes (221).

3. The multi-station flexible screen laser cutting machine according to claim 1, characterized in that: Each of the sliding platforms (2) has at least two placement plates (21) arranged opposite each other. The shooting mechanism (4) feeds back the path to be cut to the cutting mechanism (3) through the image acquisition device for cutting.

4. A multi-station flexible screen laser cutting machine according to claim 1, characterized in that: The machine base (1) is equipped with a double-headed lateral displacement drive device (11) at both ends. The front part of the double-headed lateral displacement drive device (11) is provided with a first slide rail (12) and the rear part is provided with a second slide rail (13). The front output end of the double-headed lateral displacement drive device (11) is connected to the cutting mechanism (3) and drives the cutting mechanism (3) to slide on the first slide rail (12). The rear output end of the double-headed lateral displacement drive device (11) is connected to the shooting mechanism (4) and drives the shooting mechanism (4) to slide on the second slide rail (13).

5. A multi-station flexible screen laser cutting machine according to claim 1, characterized in that: The cutting mechanism (3) includes a first horizontal slider (31), a cutting head mounting bracket (32) fixedly connected to the first horizontal slider (31), a laser cutting head (33) disposed in the cutting head mounting bracket (32), and a lifting electric cylinder (34) connected to the other side of the cutting head mounting bracket (32). The lifting electric cylinder (34) drives the laser cutting head (33) to rise and fall in the vertical direction.

6. A multi-station flexible screen laser cutting machine according to claim 5, characterized in that: A dust collection mechanism (6) is provided below the cutting mechanism (3). The dust collection mechanism (6) includes a dust collection hood (61) and a support connecting frame (62). One end of the support connecting frame (62) is fixedly connected to the dust collection hood (61), and the other end is fixedly connected to the bottom end of the first horizontal slider (31), so that the dust collection hood (61) moves synchronously with the laser cutting head (33) under the drive of the first horizontal slider (31). Dust collection holes (63) are evenly distributed on the inner walls of the dust collection hood (61). The dust collection hood (61) is connected to the vacuum pump through a pipeline.

7. A multi-station flexible screen laser cutting machine according to claim 6, characterized in that: The dust cover (61) adopts a hollow structure design to ensure that the light path of the cutting path is not blocked when the laser cutting head (33) is performing cutting operations.

8. A multi-station flexible screen laser cutting machine according to claim 1, characterized in that: The shooting mechanism (4) includes a second horizontal slider (41), a mounting bracket (42) fixedly connected to the second horizontal slider (41), a lifting drive device (43) disposed on the mounting bracket (42), and a CCD camera (44) disposed at the output end of the lifting drive device (43).

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