Photovoltaic film material cutting machine

Abstract

The utility model relates to the field of photovoltaic panel machining, in particular to a photovoltaic film material cutting machine which comprises a robot grabbing mechanism, a visual detection mechanism, a pneumatic cutting mechanism and a control mechanism, the control mechanism receives real-time detection signals of the visual detection mechanism, and when the detection signals are that pattern edges are not recognized, the pneumatic cutting mechanism is started to cut off the pattern edges. And the control mechanism controls the robot grabbing mechanism to adjust the posture of the film material until the detection signal shows that the pattern edge is recognized, and the control mechanism controls the pneumatic cutting mechanism to start cutting the film material along the pattern edge. According to the device, the position of the film material is automatically and dynamically adjusted, the situation of uneven cutting is reduced, and the purpose of improving the cutting precision and the processing quality of the photovoltaic film material is achieved.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic panel processing, and in particular to a photovoltaic film cutting machine. Background Art

[0002] As the global demand for renewable energy continues to grow, the solar industry is expanding rapidly, and the manufacturing process of photovoltaic panels is also facing higher requirements. Photovoltaic panels often use specific polymer film materials as the outer layer to ensure the long-term stable operation of solar photovoltaic panels in harsh environments; some film materials also have patterns on the surface, which not only improves the aesthetics but also increases the efficiency of solar energy absorption.

[0003] During the processing of film materials, a cutting machine is needed to cut and trim the edges. The cutting accuracy is directly related to the photoelectric conversion efficiency, overall aesthetics and service life of the photovoltaic panel. However, when traditional cutting machines process film materials with large patterns, they rely on manual positioning and static cutting modes, which often lead to tilted patterns and uneven edges. At the same time, large-pattern film materials will also have printing deviations, resulting in uneven cutting, which will reduce the processing quality of photovoltaic film materials. Utility Model Content

[0004] In order to improve the cutting accuracy and processing quality of photovoltaic film materials, the present application provides a photovoltaic film material cutting machine.

[0005] The photovoltaic film cutting machine provided in this application adopts the following technical solution:

[0006] A photovoltaic film cutting machine, comprising:

[0007] The robot gripping mechanism is used to grab, move and rotate the film material to be cut, and the film material falls vertically during cutting;

[0008] The visual inspection mechanism performs real-time visual inspection on each edge of the film material, identifies the pattern edge, and sends out a detection signal;

[0009] A pneumatic cutting mechanism to cut the film material along the edge of the film material pattern; and

[0010] The control mechanism receives the real-time detection signal from the visual detection mechanism. When the detection signal shows that the pattern edge is not recognized, the control mechanism sends an adjustment signal to the robot grasping mechanism, and the robot grasping mechanism adjusts the posture of the film material until the detection signal shows that the pattern edge has been recognized. The control mechanism sends a cutting signal to the pneumatic cutting mechanism, and the pneumatic cutting mechanism starts to cut the film material along the pattern edge.

[0011] Optionally, the visual inspection mechanism is provided with at least two groups of inspection modules, and two adjacent groups of inspection modules jointly inspect the same pattern edge of the film material, and the straight line where all the inspection modules are located is parallel to the cutting movement direction of the pneumatic cutting mechanism.

[0012] Optionally, the distances between two adjacent groups of the detection modules are set to be different to accommodate film materials of different sizes.

[0013] Optionally, the film material assembly includes:

[0014] Light source, illuminating the module to be cut to ensure that the pattern on the module surface is clearly visible;

[0015] The camera captures the image of the film to be cut, converts the optical signal into an electrical signal, generates a digital image, performs feature recognition on the digital image, and sends out a detection signal.

[0016] Optionally, the pneumatic cutting mechanism comprises:

[0017] Slide rails, used to guide the cutting direction;

[0018] A cutting knife module is slidably connected to the slide rail and performs cutting during the sliding process; and

[0019] The driving motor group is fixed on the slide rail and connected with the cutting knife module to provide driving force for the sliding of the cutting knife module.

[0020] Optionally, the pneumatic cutting mechanism also includes a lower knife module, which is located on the other side of the film material away from the cutting knife module. The lower knife module includes a lower knife, a pressure plate and a support rod. The support rod is slidably connected to the slide rail. The lower knife is clamped between the pressure plate and the support plate. The pressure plate and the support plate are detachably fixedly connected. When the film material is cut, the lower knife abuts against the film material.

[0021] Optionally, a film pressing module is provided on the same side of the film material as the cutting knife module, and the film pressing module includes a pressing block and a driving cylinder, the pressing block is fixedly connected to the driving cylinder, the driving cylinder is fixed on a slide rail, and the pressing block and the cutting knife module are respectively located on the upper and lower sides of the lower knife.

[0022] Optionally, the cutting knife module is provided with a photoelectric switch for detecting a sliding position of the cutting knife module.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. Through the cooperation of robot grasping mechanism, visual inspection mechanism, pneumatic cutting mechanism and control mechanism, the automatic dynamic adjustment of the film material position is realized, the occurrence of uneven cutting is reduced, and the purpose of improving cutting accuracy and photovoltaic film material processing quality is achieved;

[0025] 2. By setting different distances between multiple detection modules, it is compatible with photovoltaic film materials of different sizes, reducing the process of adjusting the position of the detection module due to changes in module size;

[0026] 3. Through the setting of the lower knife, the film material is tensioned between the cutter and the lower knife, reducing the deviation and shaking during the cutting process, and also reducing the initial contact force between the cutter and the film material, thereby extending the service life of the cutter. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of the entire cutting machine in an embodiment of the present application;

[0028] Figure 2 is a schematic diagram of the structure of the cutting machine after the robot grasping mechanism is removed in the embodiment of the present application;

[0029] Figure 3 It is a schematic diagram of the structure of the main frame in the embodiment of the present application, which is away from the end of the cutting knife module;

[0030] Figure 4 This is a schematic diagram of the structure of the end where the cutting knife module is located in the main frame in the embodiment of the present application;

[0031] Figure 5 This application is attached Figure 4 Enlarged schematic diagram of part A.

[0032] Explanation of the accompanying drawings: 1. Robot grasping mechanism; 11. Grasping fixture; 2. Visual inspection mechanism; 21. Inspection module; 211. Light source; 212. Camera; 3. Pneumatic cutting mechanism; 31. Slide rail; 32. Cutting knife module; 321. Cutting knife; 33. Driving motor group; 4. Film material; 5. Lower knife module; 51. Lower knife; 52. Pressing plate; 53. Support rod; 6. Film pressing module; 61. Pressing block; 62. Driving cylinder; 7. Main frame; 8. Photoelectric switch. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a photovoltaic film cutting machine. Figure 1A photovoltaic film cutting machine includes a robot grasping mechanism 1, a visual inspection mechanism 2, a pneumatic cutting mechanism 3 and a control mechanism. A main frame 7 is arranged between the visual inspection mechanism 2 and the pneumatic cutting mechanism 3. The visual inspection mechanism 2 and the pneumatic cutting mechanism 3 are both installed on the main frame 7, and the robot grasping mechanism 1 is located on one side of the main frame 7. When the cutting machine is used, the robot grasping mechanism 1 grasps the film material 4 to be cut, drives the film material 4 close to the main frame 7, and adjusts its position and posture, and then uses the visual inspection mechanism 2 to perform real-time detection of the pattern edge on the film material 4, and cooperates with the control mechanism to realize the state adjustment of the film material 4 by the robot grasping mechanism 1. When it is detected that the pattern edge of the film material 4 is aligned with the cutting line, the pneumatic cutting mechanism 3 is started by the control mechanism to cut the edge of the film material 4, so as to realize the automatic dynamic adjustment of the position of the film material 4, reduce the occurrence of uneven cutting, and achieve the purpose of improving the cutting accuracy and the processing quality of the photovoltaic film material 4.

[0035] Reference Figure 1 The robot grasping mechanism 1 can be equipped with a six-axis or seven-axis industrial robot arm, using a servo drive system. The end of the robot arm of the robot grasping mechanism 1 is equipped with a grasping fixture 11, which is used to move and adjust the film material 4. The contact surface between the grasping fixture 11 and the film material 4 can be made of soft materials or materials with protective coatings, such as rubber, silicone, polyurethane or other polymer elastomers, which can provide sufficient grip without damaging the surface of the film material 4. At the same time, these materials should have the characteristics of aging resistance and wear resistance to ensure stable performance under long-term use.

[0036] When the grabbing clamp 11 grabs the film material 4 and moves it close to the main frame 7 and adjusts the posture of the film material 4, the film material 4 hangs down under the action of its own weight, and is cut in a vertical state, which is different from the traditional horizontal film material 4 cutting. Since the film material 4 is a flexible thin film material, the edge curling degree when it hangs vertically is lighter than in a horizontal state, so it is better to position the edge of the pattern, further reducing the occurrence of uneven cutting.

[0037] Reference Figure 1 The main frame 7 is horizontally arranged on the ground, and the profile is used as the constituent material of the main frame 7, which provides stable support and is durable; four footings are fixedly connected to the bottom of the main frame 7.

[0038] Reference Figure 2 and Figure 3, the visual inspection mechanism 2 is fixedly arranged on the top of the main frame 7, the visual inspection mechanism 2 includes multiple groups of inspection modules 21, and the spacing between two adjacent groups of inspection modules 21 is set to be adjustable, and the two adjacent groups of inspection modules 21 jointly detect the same pattern edge of the film material 4; in this embodiment, the visual inspection mechanism 2 is provided with three groups of inspection modules 21, the three groups of inspection modules 21 are located on the same horizontal line, and are parallel to the cutting line direction, and the spacing between the three groups of inspection modules 21 can be set to 600 mm and 1000 mm to be compatible with photovoltaic film materials 4 of different sizes. The smaller film material 4 can use the two groups of inspection modules 21 with a spacing of 600 mm for real-time inspection, and the larger film material 4 can use the two groups of inspection modules 21 with a spacing of 1000 mm for real-time inspection. After the size of the film material 4 changes, there is no need to adjust the position of the inspection module 21 to reduce the process; at the same time, try to make the two inspection modules 21 close to the edges on both sides of the film material 4 to ensure that the pattern edge line of the film material 4 is aligned with the cutting line.

[0039] Reference Figure 3 Each group of detection modules 21 includes a horizontally arranged light source 211 and a camera 212. The straight line in which the light source 211 and the camera 212 are arranged is perpendicular to the cutting line. The light source 211 is located between the camera 212 and the film material 4. The light-emitting port of the light source 211 is aligned with the direction of the film material 4. The light source 211 provides stable and uniform lighting conditions to ensure that the pattern on the surface of the film material 4 to be cut is clearly visible. The camera 212 takes a picture of the illuminated area of ​​the film material 4, captures the image of the film material 4 to be cut, converts the optical signal into an electrical signal, and generates a digital image. The image processing unit in the camera 212 performs feature recognition on the image captured by the camera 212 and sends a detection signal to the control mechanism. Through the detection component, the detection efficiency is greatly improved, and the error rate and time cost of manual detection are reduced.

[0040] Reference Figure 3 and Figure 4 The pneumatic cutting mechanism 3 includes but is not limited to a slide rail 31, a cutting knife module 32 and a drive motor group 33. The slide rail 31 is arranged along the length direction of the main frame 7, that is, parallel to the cutting line direction. The slide rail 31 is fixedly mounted on the main frame 7 and is located below the detection module 21. The cutting knife module 32 is slidably arranged on the slide rail 31. Figure 5 The cutting knife 321 in the cutting knife module 32 is driven to rotate by air pressure to perform cutting; the driving motor group 33 is located at the end of the slide rail 31, and the driving motor group 33 provides driving force for the sliding of the cutting knife module 32 on the slide rail 31 to control the position of the cutting knife module 32 on the slide rail 31. When two adjacent detection modules 21 detect the same side edge of the film material 4 pattern, the driving motor group 33 is started, thereby driving the cutting knife module 32 to slide along the slide rail 31 to form a cutting line, and complete the single-side cutting of the film material 4.

[0041] The present application adopts a method of multi-side detection and sequential cutting, which effectively avoids the overall deviation problem caused by single cutting in the traditional cutting method, and ensures the maximization of cutting accuracy by independently detecting and cutting each side of the film material 4.

[0042] Reference Figure 2 and Figure 4 The cutting knife module 32 is provided with a photoelectric switch 8, and the light emitting end and the light receiving end of the photoelectric switch 8 are respectively fixed at the cutting knife module 32 and the end position of the slide rail 31, so as to accurately determine the position of the cutting knife module 32.

[0043] Since the film material 4 is in a vertical hanging state when being cut, when the cutting knife 321 in the cutting knife module 32 contacts the film material 4, the impact force of the cutting knife 321 during movement causes the film material 4 to move or deform instantly. In order to reduce the influence on the cutting accuracy, refer to Figure 3 and Figure 5 A lower knife die set 5 is arranged on the side of the film material 4 away from the cutting knife 321. The lower knife die set 5 is fixedly arranged on the main frame 7 along the horizontal direction. The lower knife die set 5 includes a lower knife 51, a pressure plate 52 and a support rod 53. The support rod 53 is arranged parallel to the cutting line. The bottom end of the support rod 53 is fixedly connected to the main frame 7. The support rod 53 also adopts profiles as the constituent material. There are multiple lower knives 51 and pressure plates 52, and the number of the two is the same. The pressure plate 52 presses the lower knife 51 against the top surface of the support rod 53. The bottom of the pressure plate 52 is embedded in the support rod 53, and is detachably fixed to the support rod 53 by means of screws.

[0044] A plurality of lower knives 51 are neatly arranged along a straight line. The material strength of the lower knives 51 is higher than that of the cutting knife 321. The lower knives 51 are located below the cutting knife 321. When cutting the film material 4, the cutting knife 321 is first controlled to extend toward the film material 4 and abut against the film material 4. Then, the cutting knife 321 is controlled to be pressed down for a certain distance. At this time, the lower knife 51 also abuts against the film material 4, so that the film material 4 is tensioned between the cutting knife 321 and the lower knife 51, reducing the deviation and shaking during the cutting process. At the same time, the initial contact force between the cutting knife 321 and the film material 4 is also reduced, thereby extending the service life of the cutting knife 321.

[0045] Reference Figure 3 and Figure 5In order to further improve the tension at the cutting line when the film material 4 is cut, a film pressing module 6 is fixedly arranged on the main frame 7. The film pressing module 6 is located below the cutting knife module 32, and the film pressing module 6 and the cutting knife module 32 are located on the same side of the film material 4 to be cut. The film pressing module 6 includes a pressing block 61 and a driving cylinder 62. There are multiple pressing blocks 61 and driving cylinders 62. The pressing blocks 61 are arranged vertically, and the top of the pressing block 61 is located below the lower knife 51. The bottom of the pressing block 61 is fixedly connected to the driving cylinder 62, and the driving cylinder 62 is horizontally fixed on the main frame 7. At the same time, several driving cylinders 62 are started, and the piston rods of the driving cylinders 62 push the pressing blocks 61 close to the film material 4 until the side walls of all the pressing blocks 61 with the tops away from the driving cylinders 62 are in contact with the film material 4.

[0046] Reference Figure 1 The control mechanism (not shown in the attached drawings) is electrically connected to the robot grasping mechanism 1, the visual inspection mechanism 2 and the pneumatic cutting mechanism 3. The control mechanism receives the real-time detection signal of the visual inspection mechanism 2. When the detection signal shows that the edge of the pattern is not recognized, the control mechanism sends an adjustment signal to the robot grasping mechanism 1, and then the robot grasping mechanism 1 adjusts the posture of the film material 4 until the detection signal shows that the edge of the pattern has been recognized. The control mechanism sends a cutting signal to the pneumatic cutting mechanism 3, and then the pneumatic cutting mechanism 3 starts to cut the film material 4 along the edge of the pattern.

[0047] The entire cutting process is highly automated and intelligently controlled, significantly improving production efficiency and product quality stability.

[0048] The dynamic working process of the overall cutting machine: the grabbing fixture 11 of the robot grabbing mechanism 1 grabs the film material 4 to be cut, and places the patterned film material 4 in the gap between the cutting knife 321 and the lower knife 51 of the main frame 7 for preliminary positioning according to preset parameters; the visual inspection mechanism 2 detects the edge of the film material 4, identifies the edge position of the pattern and the printing deviation, and through the control mechanism, allows the grabbing fixture 11 to automatically adjust the angle of the film material 4 according to the detection result to ensure that the cutting line is aligned with the edge of the pattern; then, the control mechanism starts the cutting mechanism to cut along the cutting line. During the cutting process, the visual inspection system continuously monitors the cutting effect and performs fine-tuning when necessary; after the edge of the film material 4 is cut, the grabbing fixture 11 rotates to adjust the posture of the film material 4, and then cuts the other edges of the film material 4 one by one, and finally outputs the film material 4 with a large pattern after cutting.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A photovoltaic film cutting machine, characterized in that: include, A robot grasping mechanism (1) is used to grasp, move and rotate the film material (4) to be cut, and the film material (4) falls vertically during cutting; A visual inspection mechanism (2) performs real-time visual inspection on each edge of the film material (4), identifies the pattern edge, and issues a detection signal; A pneumatic cutting mechanism (3) cuts the film material (4) along the pattern edge of the film material (4); as well as The control mechanism receives a real-time detection signal from the visual detection mechanism (2). When the detection signal indicates that the edge of the pattern has not been identified, the control mechanism sends an adjustment signal to the robot grasping mechanism (1), and the robot grasping mechanism (1) adjusts the posture of the film material (4). When the detection signal indicates that the edge of the pattern has been identified, the control mechanism sends a cutting signal to the pneumatic cutting mechanism (3), and the pneumatic cutting mechanism (3) starts to cut the film material (4) along the edge of the pattern.

2. A photovoltaic film cutting machine according to claim 1, characterized in that: The visual inspection mechanism (2) is provided with at least two groups of inspection modules (21), and two adjacent groups of inspection modules (21) jointly inspect the same pattern edge of the film material (4), and the straight line where all the inspection modules (21) are located is parallel to the cutting movement direction of the pneumatic cutting mechanism (3).

3. A photovoltaic film cutting machine according to claim 2, characterized in that: The distances between two adjacent groups of detection modules (21) are set to be different to accommodate film materials (4) of different sizes.

4. A photovoltaic film cutting machine according to claim 2, characterized in that: The film material (4) component comprises: A light source (211) illuminates the film material (4) to be cut to ensure that the pattern on the surface of the film material (4) is clearly visible; The camera (212) captures an image of the film material (4) to be cut, converts an optical signal into an electrical signal, generates a digital image, performs feature recognition on the digital image, and sends out a detection signal.

5. The photovoltaic film cutting machine according to claim 1, characterized in that: The pneumatic cutting mechanism (3) comprises: A slide rail (31) for guiding the cutting direction; A cutting knife module (32) is slidably connected to the slide rail (31) and performs cutting during the sliding process; as well as The driving motor group (33) is fixed on the slide rail (31) and connected to the cutting knife die group (32) to provide driving force for the sliding of the cutting knife die group (32).

6. A photovoltaic film cutting machine according to claim 5, characterized in that: The pneumatic cutting mechanism (3) also includes a lower knife die set (5), which is located on the other side of the film material (4) away from the cutting knife die set (32). The lower knife die set (5) includes a lower knife (51), a pressure plate (52) and a support rod (53). The support rod (53) is slidably connected to the slide rail (31). The lower knife (51) is clamped between the pressure plate (52) and the support rod (53). The pressure plate (52) and the support rod (53) are detachably fixedly connected. When the film material (4) is cut, the lower knife (51) abuts against the film material (4).

7. A photovoltaic film cutting machine according to claim 6, characterized in that: A film pressing module (6) is provided on the same side of the film material (4) as the cutting knife module (32), and the film pressing module (6) comprises a pressing block (61) and a driving cylinder (62), wherein the pressing block (61) is fixedly connected to the driving cylinder (62), and the driving cylinder (62) is fixed on the slide rail (31), and the pressing block (61) and the cutting knife (332) of the cutting knife module (32) are respectively located on the upper and lower sides of the lower knife (51).

8. The photovoltaic film cutting machine according to claim 5, characterized in that: The cutting knife module (32) is provided with a photoelectric switch (8) for detecting the sliding position of the cutting knife module (32).

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