A kind of PVB interlayer cutting equipment for photovoltaic
By introducing a scraping and trimming mechanism into the PVB intermediate film trimming equipment, the problem of trimming error caused by uneven film surface was solved, and high-precision trimming operation was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANTAI ZHUOYUAN NEW MATERIAL CO LTD
- Filing Date
- 2025-06-26
- Publication Date
- 2026-05-29
AI Technical Summary
The existing PVB interlayer film cutting device lacks a leveling mechanism, which leads to large cutting errors when the film surface is wrinkled or uneven, affecting the cutting accuracy.
A photovoltaic PVB interlayer film edge-cutting device was designed, equipped with a leveling mechanism and an edge-cutting mechanism. The leveling mechanism achieves film surface flatness by driving a threaded rod and scraper with a motor, while the edge-cutting mechanism achieves precise edge cutting through a cylinder and worm gear system.
It effectively smooths out wrinkles on the film surface, ensures cutting accuracy, reduces errors, and meets different production needs.
Smart Images
Figure CN224295929U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVB interlayer film processing technology, specifically to a PVB interlayer film edge cutting device for photovoltaic applications. Background Technology
[0002] The main component of PVB interlayer film used in photovoltaics is polyvinyl butyral, which is prepared by the condensation reaction of polyvinyl alcohol and butyral under the action of an acidic catalyst. In its molecular structure, the butyral side chain gives the material good flexibility and weather resistance, while the hydroxyl groups give it excellent adhesion to materials such as glass, enabling it to effectively bond glass and solar cells in photovoltaic modules.
[0003] According to CN 115229864 A, a PVB interlayer film trimming device is described. When the first sliding frame is pressed and moved downward, the first sliding frame drives the sliding rod downward through the connecting plate, and then the rubber pad moves downward to contact the interlayer film. Subsequently, the rubber pad presses and limits the middle part. At the same time, the downward movement of the first sliding frame also drives the square cutter to move downward to trim the interlayer film. In this way, the PVB interlayer film can be limited and fixed during the processing, and it is not easy to cause cutting deviation.
[0004] When the first sliding frame of this PVB interlayer film is pressed and moved downward, the first sliding frame drives the sliding rod downward through the connecting plate, and then the rubber pad moves downward to contact the interlayer film. The rubber pad presses and limits the middle part. However, the device does not have a mechanism to scrape the PVB interlayer film. When the PVB interlayer film has wrinkles, it is easy to cause errors in the PVB interlayer film when it is cut. Therefore, it needs to be improved. Utility Model Content
[0005] The purpose of this invention is to provide a PVB interlayer film cutting device for photovoltaic applications, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a photovoltaic PVB interlayer film edge cutting device, comprising a processing table, a fixed frame fixedly connected to the top right side of the processing table, a first cylinder fixedly connected to the top of the fixed frame, a pressing plate fixedly connected to the bottom of the first cylinder, a scraping mechanism provided at the bottom of the fixed frame, and an edge cutting mechanism provided at the outer back end of the fixed frame.
[0007] The scraping mechanism includes a fixed plate, which is fixedly connected to the bottom of the processing table. A first motor is fixedly connected to the right side of the fixed plate, and a first threaded rod is fixedly connected to the left side of the first motor. The first threaded rod is rotatably connected to the inner side of the fixed plate. A threaded plate is threadedly connected to the outer periphery of the first threaded rod. A connecting frame is fixedly connected to the top back end of the threaded plate. A second cylinder is fixedly connected to the top of the connecting frame. A scraper is fixedly connected to the bottom of the second cylinder. A limit block is fixedly connected to the front of the connecting frame.
[0008] Preferably, the inner back end of the processing table is provided with a groove corresponding to the movement trajectory of the limiting block, and the limiting block is slidably connected inside the groove. Through the groove, the limiting block can slide on the front of the processing table. The limiting block can limit the threaded plate and the connecting frame, making the threaded plate more stable during movement.
[0009] Preferably, the trimming mechanism includes a load-bearing block, which is fixedly connected to the left and right back ends of the processing table. A load-bearing frame is fixedly connected to the top of the load-bearing block. An arc-shaped plate is fixedly connected to the right side of the top of the load-bearing frame. A third cylinder is fixedly connected to the right side of the arc-shaped plate. A moving plate is fixedly connected to the left side of the third cylinder. A second motor is fixedly connected to the top of the moving plate. A worm gear is fixedly connected to the back end of the second motor. A worm wheel meshes with the right side of the worm gear. A support member is fixedly connected to the bottom periphery of the worm wheel. A second threaded rod is threadedly connected inside the worm wheel. A linkage plate is fixedly connected to the bottom of the second threaded rod. A trimming blade is fixedly connected to the bottom of the linkage plate. A limit rod is fixedly connected to the top left side of the trimming blade.
[0010] Preferably, the inner side of the load-bearing frame is provided with a groove corresponding to the movement trajectory of the moving plate, and the moving plate is slidably connected inside the groove. Through the groove, the moving plate can slide inside the load-bearing frame.
[0011] Preferably, the inner side of the movable plate is provided with a circular groove corresponding to the movement trajectory of the support member, and the support member is slidably connected inside the circular groove. Through the circular groove, the support member can slide inside the movable plate. The support member can support the worm gear, making the worm gear more stable during rotation.
[0012] Preferably, the inner side of the movable plate is provided with a circular hole corresponding to the movement trajectory of the second threaded rod and the limiting rod, and the second threaded rod and the limiting rod are slidably connected to the inner side of the circular hole, so that the second threaded rod and the limiting rod can slide on the inner side of the movable plate through the circular hole.
[0013] Compared with the prior art, this utility model provides a PVB interlayer film trimming device for photovoltaic applications, which has the following advantages:
[0014] 1. In the photovoltaic PVB interlayer film edge cutting equipment, the first motor drives the first threaded rod to rotate in the scraping mechanism, which in turn drives the threaded plate and connecting frame to move horizontally, so that the scraper can perform a scraping operation along the width direction of the PVB interlayer film. The limiting block cooperates with the slide groove in the processing table to ensure the stability of the scraping process and avoid deviation. The scraper can effectively scrape the surface wrinkles and uneven areas, providing a good foundation for subsequent edge cutting, improving the edge cutting accuracy, and reducing edge cutting errors caused by uneven film surface.
[0015] 2. In this photovoltaic PVB interlayer film edge trimming equipment, the edge trimming mechanism is as follows: the third cylinder pushes the moving plate to move horizontally within the slide groove of the support frame, achieving coarse adjustment of the edge trimming position; the second motor drives the worm gear to rotate, which in turn drives the worm wheel to rotate, enabling the second threaded rod to move up and down, thereby driving the edge trimming knife to achieve fine adjustment in the vertical direction; the support component cooperates with the circular groove of the moving plate, and the limit rod and the second threaded rod slide within the circular hole of the moving plate, ensuring the stability and accuracy of the edge trimming knife movement, achieving high-precision edge trimming, and meeting different production needs. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a front view structural diagram of the present invention;
[0018] Figure 2 A schematic diagram of the flattening component structure;
[0019] Figure 3 This is a schematic diagram of the edge-cutting mechanism.
[0020] Figure 4 This is a schematic diagram of the limit rod, the second threaded rod, and the worm gear structure.
[0021] In the diagram: 1. Processing table; 2. Scraping mechanism; 21. First motor; 22. Fixing plate; 23. First threaded rod; 24. Threaded plate; 25. Limiting block; 26. Connecting frame; 27. Scraper; 28. Second cylinder; 3. Trimming mechanism; 31. Load-bearing block; 32. Load-bearing frame; 33. Linkage plate; 34. Moving plate; 35. Third cylinder; 36. Arc plate; 37. Trimming knife; 38. Limiting rod; 39. Second threaded rod; 301. Worm gear; 302. Support component; 303. Second motor; 304. Worm; 4. First cylinder; 5. Pressing plate; 6. Fixing frame. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] This utility model provides the following technical solution:
[0025] Example 1
[0026] Please see Figure 1-4 This utility model provides a technical solution: a photovoltaic PVB interlayer film edge cutting device, including a processing table 1, a fixed frame 6 fixedly connected to the top right side of the processing table 1, a first cylinder 4 fixedly connected to the top of the fixed frame 6, a pressing plate 5 fixedly connected to the bottom of the first cylinder 4, a scraping mechanism 2 provided at the bottom of the fixed frame 6, and an edge cutting mechanism 3 provided at the outer back end of the fixed frame 6.
[0027] The scraping mechanism 2 includes a fixed plate 22, which is fixedly connected to the bottom of the processing table 1. A first motor 21 is fixedly connected to the right side of the fixed plate 22, and a first threaded rod 23 is fixedly connected to the left side of the first motor 21. The first threaded rod 23 is rotatably connected to the inner side of the fixed plate 22. A threaded plate 24 is threadedly connected to the outer periphery of the first threaded rod 23. A connecting frame 26 is fixedly connected to the top back end of the threaded plate 24. A second cylinder 28 is fixedly connected to the top of the connecting frame 26. A scraper 27 is fixedly connected to the bottom of the second cylinder 28. A limit block 25 is fixedly connected to the front of the connecting frame 26.
[0028] Furthermore, a groove corresponding to the movement trajectory of the limiting block 25 is provided on the inner back end of the processing table 1, and the limiting block 25 is slidably connected inside the groove. Through the groove, the limiting block 25 can slide on the front of the processing table 1. The limiting block 25 can limit the threaded plate 24 and the connecting frame 26, making the threaded plate 24 more stable during movement.
[0029] Example 2
[0030] Please see Figure 1-4 Furthermore, based on Embodiment 1, the edge-cutting mechanism 3 further includes a load-bearing block 31, which is fixedly connected to the back ends of the left and right sides of the processing table 1. A load-bearing frame 32 is fixedly connected to the top of the load-bearing block 31. An arc-shaped plate 36 is fixedly connected to the right side of the top of the load-bearing frame 32. A third cylinder 35 is fixedly connected to the right side of the arc-shaped plate 36. A moving plate 34 is fixedly connected to the left side of the third cylinder 35. A second motor 303 is fixedly connected to the top of the moving plate 34. A worm gear 304 is fixedly connected to the back end of the second motor 303. A worm wheel 301 meshes with the right side of the worm gear 304. A support member 302 is fixedly connected to the bottom periphery of the worm wheel 301. A second threaded rod 39 is threadedly connected inside the worm wheel 301. A linkage plate 33 is fixedly connected to the bottom of the second threaded rod 39. An edge-cutting blade 37 is fixedly connected to the bottom of the linkage plate 33. A limit rod 38 is fixedly connected to the top left side of the edge-cutting blade 37.
[0031] Furthermore, a groove corresponding to the movement trajectory of the movable plate 34 is provided on the inner side of the load-bearing frame 32, and the movable plate 34 is slidably connected to the inside of the groove. Through the groove, the movable plate 34 can slide inside the load-bearing frame 32.
[0032] Furthermore, a circular groove corresponding to the movement trajectory of the support member 302 is provided on the inner side of the movable plate 34, and the support member 302 is slidably connected to the inside of the circular groove. Through the circular groove, the support member 302 can slide on the inner side of the movable plate 34. The support member 302 can support the worm gear 301, making the worm gear 301 more stable during rotation.
[0033] Furthermore, a circular hole is provided on the inner side of the movable plate 34, which corresponds to the movement trajectory of the second threaded rod 39 and the limiting rod 38. The second threaded rod 39 and the limiting rod 38 are slidably connected to the inner side of the circular hole. Through the circular hole, the second threaded rod 39 and the limiting rod 38 can slide on the inner side of the movable plate 34.
[0034] In actual operation, when this device is used, the photovoltaic PVB intermediate film is passed from the bottom of the support frame 32 to the top of the processing table 1. The first cylinder 4 and the second cylinder 28 are turned on, so that the first cylinder 4 drives the pressing plate 5 to move downward, so that the pressing plate 5 presses the right side of the PVB intermediate film. The second cylinder 28 drives the scraper 27 to move downward, so that the scraper 27 contacts the top surface of the PVB intermediate film. The first motor 21 is turned on, so that the first motor 21 drives the threaded plate 24 and the connecting frame 26 to move through the threaded rod, so that the connecting frame 26 drives the scraper 27 to scrape the PVB intermediate film flat. When the scraper 27 moves to the left side of the PVB intermediate film, the second cylinder 28 is turned on, so that the second cylinder 28 continues to drive the scraper 27 to move downward, so that the scraper 27 presses and fixes the left side of the PVB intermediate film.
[0035] Turn on the second motor 303, which drives the worm gear 301 to rotate via the worm 304. The worm gear 301 drives the linkage plate 33 and the cutting blade 37 to move downward via the second threaded rod 39, allowing the cutting blade 37 to move to a suitable position. Turn on the third cylinder 35, which pushes the moving plate 34 to move. The moving plate 34 moves via the second threaded rod 39 and the linkage plate 33, which drives the cutting blade 37 to move, allowing the cutting blade 37 to cut the back end of the PVB interlayer film to the appropriate size.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A photovoltaic PVB interlayer film trimming device, comprising a processing table (1), characterized in that: A fixed frame (6) is fixedly connected to the top right side of the processing table (1). A first cylinder (4) is fixedly connected to the top of the fixed frame (6). A pressing plate (5) is fixedly connected to the bottom of the first cylinder (4). A scraping mechanism (2) is provided at the bottom of the fixed frame (6). A trimming mechanism (3) is provided at the outer back end of the fixed frame (6). The scraping mechanism (2) includes a fixed plate (22), which is fixedly connected to the bottom of the processing table (1). A first motor (21) is fixedly connected to the right side of the fixed plate (22), and a first threaded rod (23) is fixedly connected to the left side of the first motor (21). The first threaded rod (23) is rotatably connected to the inner side of the fixed plate (22). A threaded plate (24) is threadedly connected to the outer periphery of the first threaded rod (23). A connecting frame (26) is fixedly connected to the top back end of the threaded plate (24). A second cylinder (28) is fixedly connected to the top of the connecting frame (26). A scraper (27) is fixedly connected to the bottom of the second cylinder (28). A limit block (25) is fixedly connected to the front of the connecting frame (26).
2. The photovoltaic PVB interlayer film trimming device according to claim 1, characterized in that: The processing table (1) has a groove at its inner back end that corresponds to the movement trajectory of the limiting block (25), and the limiting block (25) is slidably connected inside the groove.
3. The photovoltaic PVB interlayer film trimming device according to claim 1, characterized in that: The trimming mechanism (3) includes a load-bearing block (31), which is fixedly connected to the left and right back ends of the processing table (1). A load-bearing frame (32) is fixedly connected to the top of the load-bearing block (31). An arc-shaped plate (36) is fixedly connected to the right side of the top of the load-bearing frame (32). A third cylinder (35) is fixedly connected to the right side of the arc-shaped plate (36). A moving plate (34) is fixedly connected to the left side of the third cylinder (35). A second motor (303) is fixedly connected to the top of the moving plate (34). The second motor (303) is fixedly connected to the back end of a worm gear (304). A worm wheel (301) is meshed on the right side of the worm gear (304). A support member (302) is fixedly connected to the bottom periphery of the worm wheel (301). A second threaded rod (39) is threadedly connected inside the worm wheel (301). A linkage plate (33) is fixedly connected to the bottom of the second threaded rod (39). A cutting blade (37) is fixedly connected to the bottom of the linkage plate (33). A limit rod (38) is fixedly connected to the top left side of the cutting blade (37).
4. The photovoltaic PVB interlayer film edge-cutting device according to claim 3, characterized in that: The inner side of the load-bearing frame (32) is provided with a groove corresponding to the movement trajectory of the moving plate (34), and the moving plate (34) is slidably connected inside the groove.
5. The photovoltaic PVB interlayer film trimming device according to claim 3, characterized in that: The inner side of the movable plate (34) is provided with a circular groove corresponding to the movement trajectory of the support member (302), and the support member (302) is slidably connected inside the circular groove.
6. The photovoltaic PVB interlayer film trimming device according to claim 3, characterized in that: The inner side of the movable plate (34) is provided with a circular hole corresponding to the movement trajectory of the second threaded rod (39) and the limiting rod (38), and the second threaded rod (39) and the limiting rod (38) are slidably connected to the inner side of the circular hole.