Winding and unwinding mechanism for production of high-weather-resistance solar photovoltaic backboard protective film

Abstract

The utility model relates to the technical field of winding and unwinding mechanisms, in particular to a winding and unwinding mechanism for producing a high-weather-resistance solar photovoltaic backboard protective film, which comprises a winding and unwinding mechanism main body, a hydraulic cylinder and a pressure sensor main body are arranged on the winding and unwinding mechanism main body, and a thrust spring and a sliding block are arranged in a sliding chute; the device has the beneficial effects that the overall diameter of the material winding roller is increased when the material winding roller is wound, a rotating roller support slides along a sliding groove through extrusion matching of a rotating roller, a push plate upwards extrudes a pressure sensor body, a hydraulic cylinder is started to drive a connecting plate to move downwards along a limiting groove, the material winding roller moves downwards, a rubber pad does not extrude the pressure sensor body any more, and the hydraulic cylinder is closed; through the mutual cooperation, the device reaches a balanced state, the height of the material winding roller is changed to ensure that the tension is within a reasonable range, and the problems that the tension of the photovoltaic back plate protective film is unstable in the winding and unwinding process, so that the tension of the coiled material is loose or too tight, the tensile stress of the material is increased, and the material is deformed are solved.

Description

Technical Field

[0001] This utility model relates to the field of winding and unwinding mechanisms, specifically a winding and unwinding mechanism for producing high weather-resistant solar photovoltaic backsheet protective film. Background Technology

[0002] High weather-resistant solar photovoltaic backsheet protective film is a material specifically designed to protect solar photovoltaic modules. It is typically located on the back of the photovoltaic module, primarily to protect the back of the solar panel from environmental factors. This protective film features excellent weather resistance and corrosion resistance.

[0003] In the existing technology, high weather-resistant solar photovoltaic backsheet protective films usually require a winding and unwinding mechanism to wind up the photovoltaic backsheet protective film after production.

[0004] However, existing winding and unwinding mechanisms have difficulty adjusting the tension of photovoltaic backsheet protective film when winding it up. The overall diameter of the photovoltaic backsheet protective film changes continuously after the roller winds it up, and the winding and unwinding mechanism cannot make corresponding adjustments. During the winding and unwinding process, the photovoltaic backsheet protective film may become too loose or too tight. If the photovoltaic backsheet protective film is too loose, the roll will become loose, and if the photovoltaic backsheet protective film is too tight, it will increase the tensile stress of the material, which may lead to material deformation, breakage or internal stress, affecting product quality. Utility Model Content

[0005] The purpose of this invention is to provide a winding and unwinding mechanism for producing high weather-resistant solar photovoltaic backsheet protective film, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film, comprising a winding and unwinding mechanism body, a hydraulic cylinder and a pressure sensor body on the winding and unwinding mechanism body, a sliding groove and a limiting groove on the winding and unwinding mechanism body, a thrust spring and a slider in the sliding groove, a roller bracket on the side of the slider, a push plate and a cooperating roller on the roller bracket, the cooperating roller contacting the material winding roller.

[0007] Preferably, a hydraulic cylinder is fixedly installed on the main body of the winding and unwinding mechanism, and a fixing plate is fixedly connected to the telescopic end of the hydraulic cylinder, and the fixing plate is fixedly installed on the connecting plate.

[0008] Preferably, the material roll is rotatably connected to the connecting plate via a rotating shaft, and the connecting plate is locked in a limiting groove opened on the main body of the winding and unwinding mechanism. The main body of the winding and unwinding mechanism is rotatably connected to the tension roll via a rotating shaft.

[0009] Preferably, one end of the thrust spring is fixedly connected to the main body of the winding and unwinding mechanism, and the other end is fixedly connected to the slider. The slider has a square plate-like structure, is stuck in the slide groove, and can slide up and down along the slide groove.

[0010] Preferably, the slide groove has a square groove structure, and a slider and a thrust spring are provided inside the slide groove. The thrust spring is fixedly connected to the main body of the winding and unwinding mechanism, and a pressure sensor body is fixedly installed on the main body of the winding and unwinding mechanism.

[0011] Preferably, the slider is fixedly connected to the roller bracket, the roller bracket is rotatably connected to the mating roller via a rotating shaft, a push plate is fixedly connected to the roller bracket, and a rubber pad is fixedly connected to the push plate.

[0012] Preferably, the connecting plate has an "I"-shaped plate structure, and the connecting plate can slide up and down along the limiting groove. The drive shaft of the motor fixedly installed on the connecting plate is fixedly connected to the shaft of the material roll.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention proposes a winding and unwinding mechanism for producing high-weather-resistant solar photovoltaic backsheet protective film. As the material roll continues to wind, its overall diameter gradually increases. The pressing action of the rotating roller causes the roller support and slider to slide along the groove, moving the push plate and rubber pad upwards to press the pressure sensor body. A hydraulic cylinder is activated, driving the fixed plate and connecting plate downwards along the limiting groove, causing the material roll to move downwards. A thrust spring pushes the slider downwards along the groove, bringing the rotating roller into contact with the photovoltaic backsheet protective film on the material roll. The rubber pad then stops pressing the pressure sensor body, and the hydraulic cylinder closes. Through the coordinated operation of these structures, the entire device achieves a balanced state. By changing the height of the material roll, the tension is ensured to be within a reasonable range, preventing unstable tension of the photovoltaic backsheet protective film during winding and unwinding, which could lead to material looseness or excessive tightness. This avoids problems such as increased tensile stress and material deformation caused by loose or excessively tight rolls, thus improving the overall reliability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0017] Figure 3 for Figure 1 Enlarged structural diagram at point B;

[0018] Figure 4 for Figure 1 Enlarged structural diagram at point C.

[0019] In the diagram: 1. Main body of the winding and unwinding mechanism; 2. Tension roller; 3. Limiting groove; 4. Hydraulic cylinder; 5. Slide groove; 6. Thrust spring; 7. Slider; 8. Rotary roller bracket; 9. Push plate; 10. Rubber pad; 11. Main body of pressure sensor; 12. Matching rotary roller; 13. Connecting plate; 14. Fixing plate; 15. Motor; 16. Material winding roller. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] Example 1

[0022] Please see Figures 1-4 This utility model provides a technical solution: a winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film, including a winding and unwinding mechanism body 1, a hydraulic cylinder 4 and a pressure sensor body 11 on the winding and unwinding mechanism body 1, a sliding groove 5 and a limiting groove 3 on the winding and unwinding mechanism body 1, a thrust spring 6 and a slider 7 are provided in the sliding groove 5, a rotating roller bracket 8 is provided on the side of the slider 7, a push plate 9 and a cooperating rotating roller 12 are provided on the rotating roller bracket 8, and the cooperating rotating roller 12 contacts the material winding roller 16;

[0023] The pressure sensor body 11 used in this utility model is a pressure sensor of the Xinjingcheng sensor brand and model XJC-Y18.

[0024] In practical use, the connecting plate 13 and the material roll 16 are pushed downward by the hydraulic cylinder 4, which can change the tension of the photovoltaic backsheet protective film on the material roll 16 during winding, ensuring that the tension is within a reasonable range and avoiding unstable tension of the photovoltaic backsheet protective film during winding and unwinding, which could lead to the material being too loose or too tight.

[0025] Example 2

[0026] To improve the reliability of the device, a material roll 16 is provided based on Embodiment 1. The material roll 16 is rotatably connected to the connecting plate 13 via a rotating shaft. The connecting plate 13 is locked in the limiting groove 3 opened on the main body 1 of the winding and unwinding mechanism. The main body 1 of the winding and unwinding mechanism is rotatably connected to the tension roller 2 via a rotating shaft. The limiting groove 3 has a square groove structure. The photovoltaic backsheet protective film is alternately covered on the tension roller 2, and then one end of the photovoltaic backsheet protective film is placed on the material roll 16 that contacts the cooperating rotating roller 12. The photovoltaic backsheet protective film is wound up by the material roll 16.

[0027] The connecting plate 13 has an "I" shaped plate structure. The connecting plate 13 can slide up and down along the limiting groove 3. The drive shaft of the motor 15 fixedly installed on the connecting plate 13 is fixedly connected to the shaft of the material roll 16. When the motor 15 is started, the material roll 16 is driven to rotate. The photovoltaic backsheet protective film is rolled up by the material roll 16. When the material roll 16 rolls up the photovoltaic backsheet protective film, the cooperating roller 12 will come into contact with the photovoltaic backsheet protective film. The cooperating roller 12 squeezes the photovoltaic backsheet protective film to cover the material roll 16.

[0028] One end of the thrust spring 6 is fixedly connected to the main body 1 of the winding and unwinding mechanism, and the other end is fixedly connected to the slider 7. The slider 7 has a square plate structure. The slider 7 is stuck in the slide groove 5 and can slide up and down along the slide groove 5. After the material roll 16 continues to wind up the photovoltaic backsheet protective film, its overall diameter will gradually increase, which will squeeze the rotating roller 12, so that the rotating roller bracket 8 and the slider 7 slide along the slide groove 5 opened on the main body 1 of the winding and unwinding mechanism. The slide groove 5 has a square groove structure. The slider 7 and the thrust spring 6 are installed in the slide groove 5. The thrust spring 6 is fixedly connected to the main body 1 of the winding and unwinding mechanism. The pressure sensor body 11 is fixedly installed on the main body 1 of the winding and unwinding mechanism. The thrust spring 6 is compressed, and the push plate 9 and the rubber pad 10 move upward, so that the rubber pad 10 contacts the pressure sensor body 11 and squeezes the pressure sensor body 11.

[0029] A hydraulic cylinder 4 is fixedly installed on the main body 1 of the winding and unwinding mechanism. A fixed plate 14 is fixedly connected to the telescopic end of the hydraulic cylinder 4. The fixed plate 14 is fixedly installed on the connecting plate 13. When the hydraulic cylinder 4 is activated, it drives the fixed plate 14 and the connecting plate 13 to move downward along the limiting groove 3 opened on the main body 1 of the winding and unwinding mechanism, so that the material winding roller 16 moves downward. In conjunction with the thrust spring 6, it pushes the slider 7 to move downward along the slide groove 5, so that the mating roller 12 rotatably connected to the roller bracket 8 moves downward with the material winding roller 16. During this process, the rubber pad 10 no longer squeezes the pressure sensor body 1. 1. When hydraulic cylinder 4 is closed, the rotating roller 12 contacts the photovoltaic backsheet protective film on the material roll 16. By pushing the connecting plate 13 and the material roll 16 downward through hydraulic cylinder 4, the tension of the photovoltaic backsheet protective film on the material roll 16 during winding can be changed, ensuring that the tension is within a reasonable range. Through the cooperation of the above structures, the device as a whole reaches a balanced state. By changing the height of the material roll 16, the tension is ensured to be within a reasonable range, avoiding unstable tension of the photovoltaic backsheet protective film during winding and unwinding, which could lead to the material being too loose or too tight.

[0030] Example 3

[0031] Based on Embodiment 2, in order to improve the performance of the device, the slider 7 is fixedly connected to the roller bracket 8, the roller bracket 8 is rotatably connected to the cooperating roller 12 through a rotating shaft, a push plate 9 is fixedly connected to the roller bracket 8, and a rubber pad 10 is fixedly connected to the push plate 9. The slider 7 has a square plate structure, and both the push plate 9 and the rubber pad 10 have an "L" shaped plate structure. The rubber pad 10 has a certain elasticity, and when the rubber pad 10 contacts the pressure sensor body 11, there will be no rigid collision, thereby improving the service life of the pressure sensor body 11.

[0032] In actual use, as the material roll 16 continues to wind up, its overall diameter gradually increases. The pressing action of the rotating roller 12 causes the roller bracket 8 and the slider 7 to slide along the slide groove 5, which in turn moves the push plate 9 and the rubber pad 10 upwards, pressing the pressure sensor body 11. The hydraulic cylinder 4 is activated to drive the fixed plate 14 and the connecting plate 13 to move downwards along the limit groove 3, causing the material roll 16 to move downwards. The thrust spring 6 pushes the slider 7 downwards along the slide groove 5, so that the rotating roller 12 contacts the photovoltaic backsheet protective film on the material roll 16. The rubber pad 10 stops pressing the pressure sensor body 11, and the hydraulic cylinder 4 is closed. Through the cooperation of the above structures, the device as a whole reaches a balanced state. By changing the height of the material roll 16, the tension is ensured to be within a reasonable range, avoiding unstable tension of the photovoltaic backsheet protective film during winding and unwinding, which could lead to material loosening or excessive tightness. This would increase the tensile stress of the material and cause deformation, thus improving the overall reliability of the device.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film, comprising a winding and unwinding mechanism body (1), wherein a hydraulic cylinder (4) and a pressure sensor body (11) are provided on the winding and unwinding mechanism body (1), and a sliding groove (5) and a limiting groove (3) are provided on the winding and unwinding mechanism body (1), characterized in that: The chute (5) is provided with a thrust spring (6) and a slider (7). A roller bracket (8) is provided on the side of the slider (7). A push plate (9) and a cooperating roller (12) are provided on the roller bracket (8). The cooperating roller (12) is in contact with the material roll roller (16).

2. The winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film according to claim 1, characterized in that: A hydraulic cylinder (4) is fixedly installed on the main body (1) of the winding and unwinding mechanism. A fixed plate (14) is fixedly connected to the telescopic end of the hydraulic cylinder (4). The fixed plate (14) is fixedly installed on the connecting plate (13).

3. The winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film according to claim 1, characterized in that: The material roll (16) is rotatably connected to the connecting plate (13) via a rotating shaft. The connecting plate (13) is locked in the limiting groove (3) opened on the main body (1) of the winding and unwinding mechanism. The main body (1) of the winding and unwinding mechanism is rotatably connected to the tension roller (2) via a rotating shaft.

4. The winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film according to claim 1, characterized in that: One end of the thrust spring (6) is fixedly connected to the main body (1) of the winding and unwinding mechanism, and the other end is fixedly connected to the slider (7). The slider (7) has a square plate structure. The slider (7) is stuck in the slide groove (5) and can slide up and down along the slide groove (5).

5. The winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film according to claim 1, characterized in that: The slide (5) has a square groove structure. A slider (7) and a thrust spring (6) are provided in the slide (5). The thrust spring (6) is fixedly connected to the winding and unwinding mechanism body (1). A pressure sensor body (11) is fixedly installed on the winding and unwinding mechanism body (1).

6. The winding and unwinding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film according to claim 1, characterized in that: The slider (7) is fixedly connected to the roller bracket (8), the roller bracket (8) is rotatably connected to the cooperating roller (12) through the rotating shaft, and a push plate (9) is fixedly connected on the roller bracket (8), and a rubber pad (10) is fixedly connected on the push plate (9).

7. The unwinding and winding mechanism for producing a high weather-resistant solar photovoltaic backsheet protective film according to claim 3, characterized in that: The connecting plate (13) has an "I" shaped plate structure. The connecting plate (13) can slide up and down along the limiting groove (3). The drive shaft of the motor (15) fixedly installed on the connecting plate (13) is fixedly connected to the shaft of the material roll (16).

Images