Photovoltaic glass hole detection device

Abstract

The utility model belongs to the technical field of photovoltaic glass, and discloses a photovoltaic glass hole detection device which comprises a glass conveying frame, a controller and an alarm, the glass conveying frame comprises a rack, a plurality of conveying rollers rotationally connected with the rack, and a servo motor in transmission connection with the conveying rollers, an inlet photoelectric sensor, a hole detection mechanism and an outlet photoelectric sensor are sequentially arranged on the glass conveying frame in the glass conveying direction, the hole detection mechanism comprises a fixing frame, the fixing frame is provided with two guide rails located on the upper side and the lower side of a conveying roller respectively, one guide rail is provided with a correlation photoelectric transmitter, and the other guide rail is provided with a correlation photoelectric receiver. And the correlation photoelectric transmitter and the correlation photoelectric receiver form a correlation photoelectric sensor. According to the utility model, the through state of the lead-out hole on the photovoltaic glass can be detected, and when the glass at the lead-out hole does not completely fall off and is abnormal, an alarm is given out to remind a worker to recheck and confirm the glass and judge whether the glass needs to be subjected to secondary treatment or not.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic glass technology, and specifically relates to a photovoltaic glass inspection device. Background Technology

[0002] Photovoltaic glass is a type of sodium-calcium silicate glass, primarily used for encapsulating photovoltaic modules. As a crucial component of solar cell modules, the backsheet photovoltaic glass requires lead-out holes at specific locations to guide the current conductors of the photovoltaic module to the junction box. During the laser drilling process, sometimes the glass at the drilling location remains adhered and does not completely detach, resulting in incomplete penetration of the lead-out holes on both sides, affecting product yield. Therefore, there is an urgent need for a photovoltaic glass hole inspection device to detect the penetration status of the lead-out holes on the photovoltaic glass. This device should issue an alarm when incomplete detachment of glass at the lead-out hole is detected, prompting staff to verify and determine if secondary processing is necessary. Utility Model Content

[0003] This invention addresses the shortcomings of the prior art by providing a photovoltaic glass hole inspection device. This device detects the continuity of the lead-out holes on the photovoltaic glass and issues an alarm when the glass at the lead-out hole is not completely detached and there is an abnormality. This alerts staff to re-verify and confirm whether secondary processing is required.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A photovoltaic glass inspection device includes a glass conveying frame, a controller, and an alarm. The glass conveying frame includes a frame, multiple conveying rollers rotatably connected to the frame, and a servo motor driven by the multiple conveying rollers. An inlet photoelectric sensor, an inspection mechanism, and an outlet photoelectric sensor are sequentially arranged on the glass conveying frame along the glass conveying direction. The inspection mechanism includes a fixed frame with two guide rails located on the upper and lower sides of the conveying rollers, respectively. One guide rail has a through-beam photoelectric transmitter, and the other guide rail has a through-beam photoelectric receiver. The through-beam photoelectric transmitter and the through-beam photoelectric receiver form a through-beam photoelectric sensor. The through-beam photoelectric sensor, the inlet photoelectric sensor, the outlet photoelectric sensor, the servo motor, and the alarm are all electrically connected to the controller.

[0006] Preferably, each of the guide rails is slidably connected to a slider, and the slider is threadedly connected to a first locking screw. The photoelectric transmitter and the photoelectric receiver are respectively disposed on the corresponding slider.

[0007] Preferably, the two guide rails are arranged parallel to each other along the width direction of the glass conveyor, and both of their surfaces are provided with scale lines.

[0008] Preferably, the end of the guide rail is provided with a lifting block, the lifting block is slidably connected to the slide groove provided on the fixed frame, and a second locking screw is threadedly connected to one side of the lifting block, the second locking screw is slidably connected to the waist-shaped groove provided on the fixed frame.

[0009] Preferably, the glass conveying frame is provided with a set of centering and positioning mechanisms at both the inlet and outlet ends. Each set of centering and positioning mechanisms includes two centering cylinders symmetrically distributed on both sides of the glass conveying frame, and each centering cylinder is connected to a positioning block.

[0010] Preferably, a stop mechanism is provided on the downstream side of the outlet photoelectric sensor in the conveying direction. The stop mechanism includes a stop cylinder and a stop block, and the stop cylinder is connected to the stop block.

[0011] Preferably, the multiple conveying rollers are evenly spaced and parallel, each conveying roller is connected to a sprocket at its end, the multiple sprockets are connected to each other by a chain, and one of the conveying rollers is connected to a servo motor at its end.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] (1) This utility model utilizes the cooperation between a through-beam photoelectric transmitter and a through-beam photoelectric receiver. Based on the reception of light signals by the through-beam photoelectric receiver, it determines whether the drilling position of the glass lead hole is through. If there is an abnormality, an alarm is issued to remind the staff to check and confirm it and determine whether it needs to be processed again.

[0014] (2) The photoelectric transmitter and photoelectric receiver of this utility model are connected to the guide rail by a slider, which can meet the inspection requirements of products with different lead hole positions due to different specifications and models. The guide rail surface is provided with scale lines, which can effectively improve the accuracy of position adjustment.

[0015] (3) The height of the two guide rails of this utility model can be freely adjusted to change the distance between the two guide rails, which can meet the usage requirements of different specifications and models of photoelectric sensors, ensure their accuracy and precision, and meet the inspection requirements of glass of different thicknesses.

[0016] (4) The present invention can correct and fix the position of the glass through the stop mechanism and the centering positioning mechanism, thereby improving the accuracy of the test results. Attached Figure Description

[0017] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0020] Figure 3 This utility model Figure 1 Enlarged structural diagram at point B;

[0021] Figure 4 This utility model Figure 1 Enlarged structural diagram at point C;

[0022] In the diagram: 1. Controller, 2. Frame, 3. Conveyor roller, 4. Servo motor, 5. Inlet photoelectric sensor, 6. Outlet photoelectric sensor, 7. Fixing frame, 8. Guide rail, 9. Through-beam photoelectric transmitter, 10. Through-beam photoelectric receiver, 11. Slider, 12. First locking screw, 13. Scale line, 14. Lifting block, 15. Slide groove, 16. Second locking screw, 17. Waist-shaped groove, 18. Centering cylinder, 19. Positioning block, 20. Stop cylinder, 21. Stop block, 22. Sprocket, 23. Chain, 24. Alarm. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "middle", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "link," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection; a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] like Figure 1As shown, a photovoltaic glass inspection device includes a glass conveying frame, a controller 1, and an alarm 24. The glass conveying frame includes a frame 2, multiple conveying rollers 3 rotatably connected to the frame, and a servo motor 4 driven by the multiple conveying rollers. The multiple conveying rollers are evenly spaced parallel to each other along the frame. Each conveying roller is connected to a sprocket 22 at its end, and the multiple sprockets are connected by a chain 23. One conveying roller is connected to the servo motor at its end, which can drive the multiple conveying rollers to rotate synchronously and convey the glass on the conveying rollers. An inlet photoelectric sensor 5, an inspection mechanism, and an outlet photoelectric sensor 6 are arranged sequentially along the glass conveying direction on the glass conveying frame. The inspection mechanism includes a fixed frame 7, on which are two guide rails 8 located on the upper and lower sides of the conveying rollers, respectively. One guide rail is equipped with a through-beam photoelectric transmitter 9, and the other guide rail is equipped with a through-beam photoelectric receiver 10. The through-beam photoelectric transmitter and the through-beam photoelectric receiver form a through-beam photoelectric sensor. The through-beam photoelectric sensor, the inlet photoelectric sensor, the outlet photoelectric sensor, the servo motor, and the alarm are all electrically connected to the controller. When the inlet photoelectric sensor detects the glass, it indicates that the glass has arrived at the glass conveyor. When the outlet photoelectric sensor detects the glass, it feeds a signal back to the controller (PLC controller), which stops the servo motor. At this time, the glass stops moving forward, and its outlet hole is located between the through-beam photoelectric transmitter and the through-beam photoelectric receiver. The through-beam photoelectric transmitter is activated to emit a light beam, and the through-beam photoelectric receiver feeds back the received signal to the controller. If the through-beam photoelectric receiver receives a light signal, it indicates that the outlet hole is completely open from top to bottom, and the drilling effect is good. The servo motor is then activated to convey the glass. Conversely, if the through-beam photoelectric receiver does not receive a light signal, it indicates that the outlet hole is not completely open from top to bottom, and the glass may not have detached. The controller then activates an alarm to remind the staff to verify the situation.

[0027] Combination Figure 1 and Figure 2 As shown, two guide rails are arranged parallel to each other along the width of the glass conveyor. Each guide rail has a sliding block 11, and a first locking screw 12 is threaded onto each slider. The through-beam photoelectric transmitter and receiver are respectively mounted on their respective sliders, and their positions can be adjusted. The first locking screws are used to lock and fix them in place, accommodating different lead-out hole positions for different product models. To ensure more precise position adjustment of the through-beam photoelectric transmitter and receiver, each guide rail surface is provided with graduation lines 13. Figure 3As shown, a lifting block 14 is provided at the end of the guide rail. The lifting block is slidably connected to a slide groove 15 on the fixed frame. A second locking screw 16 is threadedly connected to one side of the lifting block. The second locking screw is slidably connected to a waist-shaped groove 17 on the fixed frame, which can realize the adjustment and locking of the height of the lifting block. By adjusting the height of each guide rail, the distance between two guide rails is changed to meet the usage requirements of different specifications and models of through-beam photoelectric sensors, ensuring their accuracy and precision, and meeting the inspection requirements of glass of different thicknesses. The specific number of through-beam photoelectric transmitters and through-beam photoelectric receivers can be freely set according to actual needs.

[0028] Combination Figure 1 and Figure 4 As shown, a set of centering and positioning mechanisms is provided at both the inlet and outlet ends of the glass conveyor. Each set of centering and positioning mechanisms includes two centering cylinders 18 symmetrically distributed on both sides of the glass conveyor. Each centering cylinder is connected to a positioning block 19. In this embodiment, there are a total of four centering cylinders, located at the four apex corners of the glass to be inspected. The four centering cylinders work simultaneously, and the four positioning blocks are used to center and fix the glass, further improving the accuracy of the glass inspection results and avoiding positional deviations during the conveying process. A stop mechanism is provided downstream of the outlet photoelectric sensor in the conveying direction. The stop mechanism includes a stop cylinder 20 and a stop block 21. The stop cylinder is connected to the stop block. When the inlet photoelectric sensor detects the glass, the stop cylinder drives the stop block to rise, which acts as a stop for the glass, preventing displacement due to inertia after the glass reaches the designated position and affecting the accuracy of the detection results.

[0029] In this embodiment, the through-beam photoelectric sensor is an Omron E3Z-T61; the inlet / outlet photoelectric sensor is a Schneider XUB5APANL2; and the PLC controller is a Siemens S7-200.

[0030] This utility model is used in glass inspection processing, combined with Figures 1 to 4 As shown, the specific operation steps are as follows:

[0031] S1, the glass to be inspected enters from the inlet end of the glass conveyor frame, and the servo motor 4 drives multiple conveying rollers 3 to rotate synchronously, conveying the glass to the outlet end of the glass conveyor frame.

[0032] S2, when the inlet photoelectric sensor 5 detects the glass, it feeds back the signal to the controller 1, and the stop cylinder 20 drives the stop block 21 to rise;

[0033] S3, when the outlet photoelectric sensor 6 detects the glass, it feeds back the signal to the controller 1. At this time, the stop block 21 blocks the glass, and the servo motor 4 stops conveying the glass.

[0034] S4, four centering cylinders 18 drive positioning blocks 19 to move synchronously, correct the position of the glass and clamp it to fix it, so that the lead-out hole of the glass is accurately located between the through-beam photoelectric transmitter 9 and the through-beam photoelectric receiver 10.

[0035] S5, the through-beam photoelectric transmitter 9 emits a light beam, and the through-beam photoelectric receiver 10 feeds back the reception status of the light signal to the controller 1. If the through-beam photoelectric receiver 10 receives the corresponding light signal, it indicates that the lead hole is fully penetrated, the glass drilling is in good condition, and there are no abnormalities. At this time, the stop cylinder 20 resets and springs back, and the servo motor 4 continues to work, conveying the glass out of the outlet. Conversely, if the through-beam photoelectric receiver 10 does not receive the corresponding light signal, it indicates that there is an abnormality in the drilling position of the lead hole, and the alarm 24 sounds an alarm to remind the staff to check and confirm.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all changes falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

Claims

1. A photovoltaic glass inspection device, characterized in that: The system includes a glass conveyor, a controller, and an alarm. The glass conveyor includes a frame, multiple conveyor rollers rotatably connected to the frame, and a servo motor driven by the multiple conveyor rollers. An inlet photoelectric sensor, a hole detection mechanism, and an outlet photoelectric sensor are sequentially arranged on the glass conveyor along the glass conveying direction. The hole detection mechanism includes a fixed frame with two guide rails located on the upper and lower sides of the conveyor rollers, respectively. One guide rail has a through-beam photoelectric transmitter, and the other guide rail has a through-beam photoelectric receiver. The through-beam photoelectric transmitter and the through-beam photoelectric receiver form a through-beam photoelectric sensor. The through-beam photoelectric sensor, the inlet photoelectric sensor, the outlet photoelectric sensor, the servo motor, and the alarm are all electrically connected to the controller.

2. The photovoltaic glass inspection device as described in claim 1, characterized in that: Each of the guide rails is slidably connected to a slider, and a first locking screw is threaded onto the slider. The photoelectric transmitter and the photoelectric receiver are respectively mounted on the corresponding slider.

3. The photovoltaic glass inspection device as described in claim 2, characterized in that: The two guide rails are arranged parallel to each other along the width of the glass conveyor, and both of their surfaces are provided with scale lines.

4. The photovoltaic glass inspection device as described in claim 1, characterized in that: The end of the guide rail is provided with a lifting block, which is slidably connected to the slide groove on the fixed frame. A second locking screw is threadedly connected to one side of the lifting block, and the second locking screw is slidably connected to the waist-shaped groove on the fixed frame.

5. The photovoltaic glass inspection device as described in claim 1, characterized in that: The glass conveying frame is provided with a set of centering and positioning mechanisms at both the inlet and outlet ends. Each set of centering and positioning mechanisms includes two centering cylinders symmetrically distributed on both sides of the glass conveying frame, and each centering cylinder is connected to a positioning block.

6. The photovoltaic glass inspection device as described in claim 1, characterized in that: A stop mechanism is provided on the downstream side of the conveying direction of the outlet photoelectric sensor. The stop mechanism includes a stop cylinder and a stop block, and the stop cylinder is connected to the stop block.

7. The photovoltaic glass inspection device as described in claim 1, characterized in that: Multiple conveyor rollers are evenly spaced and parallel, each conveyor roller is connected to a sprocket at its end, and the multiple sprockets are connected to each other by a chain. One of the conveyor rollers is connected to a servo motor at its end.

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