Hot knife cutting apparatus for full glass for photovoltaic modules

Abstract

The utility model discloses a kind of hot knife cutting device for complete glass of photovoltaic module, it includes transmission mechanism, hot knife mechanism, combination body clamping mechanism and hot knife guiding driver.Hot knife cutting device for complete glass of photovoltaic module is formed by setting transmission mechanism, hot knife mechanism, combination body clamping mechanism and hot knife guiding driver, a complete separation system.Formation.Transmission mechanism realizes the stable delivery of photovoltaic module, hot knife mechanism is movably connected with transmission mechanism by guide slide rail, ensure that cutting position is accurate, hot knife guiding driver drives hot knife mechanism to move along the length direction of transmission mechanism, it can be adapted to different length specifications photovoltaic module, combination body clamping mechanism can timely clamp and drag the combination body of photovoltaic module after separation by hot knife mechanism, avoid its secondary contact with glass.The overall structure is compact, realizes the automation separation of complete glass and combination body.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module processing equipment technology, and in particular to a hot knife cutting device for whole glass of photovoltaic modules. Background Technology

[0002] With the rapid development of the photovoltaic industry, a large number of photovoltaic modules are facing retirement or scrapping, making the recycling and disposal of photovoltaic modules a key focus of the industry. In the structure of a photovoltaic module, the complete glass panel is an important component with high recycling value, while the combination of the backsheet and the solar panel also needs to be recycled separately to extract useful materials.

[0003] In existing technologies, the separation of the complete glass from the backsheet and solar panel assembly of photovoltaic modules mostly employs mechanical cutting or manual separation. Mechanical cutting easily leads to glass breakage, reducing the recycling rate of the complete glass; manual separation suffers from low efficiency, high labor intensity, and unstable separation results, and it is difficult to guarantee the integrity of the backsheet and solar panel assembly during the separation process. Therefore, there is an urgent need for a device that can achieve efficient and non-destructive separation of the complete glass from the assembly to overcome the shortcomings of existing technologies. Utility Model Content

[0004] The technical problem to be solved by this invention is to provide a hot knife cutting device for whole glass of photovoltaic modules.

[0005] The technical solution adopted by this utility model to solve its technical problem is: to construct a hot knife cutting device for the complete glass of photovoltaic modules, which includes a transmission mechanism, a hot knife mechanism, a combination clamping mechanism and a hot knife guide driver. The transmission mechanism is used to transmit photovoltaic modules; The hot knife mechanism is movably connected to the transmission mechanism via a guide rail, and is used to separate the assembly of the backsheet and the solar panel in the photovoltaic module from the complete glass. The assembly clamping mechanism is mounted on the transmission mechanism and is used to clamp and pull the assembly of the backsheet and the battery panel of the photovoltaic module after it has been cut and separated by the hot knife mechanism. The hot knife guide driver is mounted on the transmission mechanism, and the output end of the hot knife guide driver is connected to the hot knife mechanism. The hot knife guide driver is used to drive the hot knife mechanism to move along the length direction of the transmission mechanism.

[0006] In some embodiments, the hot knife mechanism includes a hot knife mounting bracket, a hot knife cutting driver, a connecting rod, a knife holder, and a cutting hot knife; The hot knife mounting bracket is connected to the output end of the hot knife guide driver. The hot knife cutting driver is mounted on the hot knife mounting bracket. The output end of the hot knife cutting driver is hinged to the connecting rod. The knife holder is hinged to the hot knife mounting bracket via a bearing. The end of the connecting rod away from the hot knife cutting driver is connected to the bearing. The cutting hot knife is mounted on the knife holder. The hot knife cutting driver is used to drive the knife holder and the cutting hot knife to rotate.

[0007] In some embodiments, the number of hot knife cutting drivers is two, and the two hot knife cutting drivers are distributed on both sides of the hot knife mounting bracket.

[0008] In some embodiments, the hot knife mechanism further includes a preheating heater and a preheating air knife, the preheating air knife being located on one side of the cutting hot knife and connected to the preheating heater via a pipe.

[0009] In some embodiments, the hot knife mechanism further includes a heat insulation cover disposed on the outside of the cutting hot knife, and heat insulation cotton is installed on the heat insulation cover.

[0010] In some embodiments, the hot knife mechanism further includes an upper guide plate and a lower guide plate, both of which are mounted on the hot knife mounting bracket. A guide space is formed between the upper guide plate and the lower guide plate for the assembly to pass through. The guide space is used to guide the separated assembly to extend along a preset path.

[0011] In some embodiments, the combined gripping mechanism includes a gripping mounting frame, a gripping guide driver, a gripping finger cylinder, and a finger cylinder mounting box; The gripping guide driver is mounted on the gripping mounting frame and its output end is connected to the finger cylinder mounting box. The gripping finger cylinder is mounted on the finger cylinder mounting box. The gripping guide driver is used to drive the finger cylinder mounting box and the gripping finger cylinder to move horizontally. The gripping finger cylinder is used to grip the assembly.

[0012] In some embodiments, the assembly clamping mechanism further includes a clamping air knife, a clamping preheater, and a clamping connecting frame; The gripping connector is connected to the finger cylinder mounting box, the gripping air knife is connected to one end of the gripping guide driver, and the gripping preheater is connected to the gripping air knife through a pipe.

[0013] In some embodiments, an encoder is mounted on the hot knife guide driver.

[0014] In some embodiments, the hot knife cutting device further includes a heating module connected to the hot cutting knife for heating the hot cutting knife.

[0015] The present invention offers the following advantages: A hot-blade cutting device for whole glass in photovoltaic modules forms a complete separation system by incorporating a transmission mechanism, a hot-blade mechanism, a combination clamping mechanism, and a hot-blade guide driver. The transmission mechanism ensures stable transport of the photovoltaic modules. The hot-blade mechanism is movably connected to the transmission mechanism via a guide rail, ensuring precise cutting. The hot-blade guide driver drives the hot-blade mechanism to move along the length of the transmission mechanism, adapting to photovoltaic modules of different lengths. The combination clamping mechanism promptly clamps and holds the combined photovoltaic module after it has been separated by the hot-blade mechanism, preventing secondary contact with the glass. The overall structure is compact, achieving automated separation of whole glass and the combined module. Compared to manual separation, this significantly improves efficiency, avoids glass breakage caused by mechanical cutting, and increases the whole glass recycling rate. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be understood that the following drawings only show some embodiments of this utility model and should not be considered as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a hot knife cutting device for photovoltaic modules in some embodiments of this utility model; Figure 2 This is a schematic diagram of the hot knife mechanism in some embodiments of this utility model; Figure 3 yes Figure 2 A schematic diagram of the structure from another direction; Figure 4 This is a schematic diagram of the combined clamping mechanism in some embodiments of this utility model. Detailed Implementation

[0017] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the device or component referred to must have a specific orientation; therefore, they should not be construed as limitations on this utility model.

[0018] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," "fixing," and "setting" 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. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0019] Please see Figures 1 to 4 This invention relates to a hot-blade cutting device for whole glass of photovoltaic modules, comprising a transmission mechanism 1, a hot-blade mechanism 2, an assembly clamping mechanism 3, and a hot-blade guide driver 4. The transmission mechanism 1 is used to transmit the photovoltaic module; the hot-blade mechanism 2 is movably connected to the transmission mechanism 1 via a guide rail 11, and is used to separate the assembly of the backsheet and solar panel in the photovoltaic module from the whole glass; the assembly clamping mechanism 3 is disposed on the transmission mechanism 1, and is used to clamp and pull the assembly of the backsheet and solar panel after the photovoltaic module has been cut and separated by the hot-blade mechanism 2; the hot-blade guide driver 4 is disposed on the transmission mechanism 1, and its output end is connected to the hot-blade mechanism 2, driving the hot-blade mechanism 2 to move along the length direction of the transmission mechanism 1. The hot-blade guide driver 4 can be a heavy-duty hydraulic cylinder, and the assembly is the assembly of the backsheet and solar panel.

[0020] Understandably, the hot-blade cutting device for whole glass used in photovoltaic modules forms a complete separation system by setting up a transmission mechanism 1, a hot-blade mechanism 2, an assembly clamping mechanism 3, and a hot-blade guide driver 4. The transmission mechanism 1 ensures stable transport of the photovoltaic modules. The hot-blade mechanism 2 is movably connected to the transmission mechanism 1 via a guide rail 11, ensuring precise cutting. The hot-blade guide driver 4 drives the hot-blade mechanism 2 to move along the length of the transmission mechanism 1, adapting to photovoltaic modules of different lengths. The assembly clamping mechanism 3 promptly clamps and pulls the assembly of the photovoltaic module after it has been separated by the hot-blade mechanism 2, preventing secondary contact between the assembly and the glass. The overall structure is compact, achieving automated separation of whole glass and the assembly. Compared to manual separation, this significantly improves efficiency while avoiding glass breakage caused by mechanical cutting, thus increasing the whole glass recycling rate.

[0021] like Figure 2 and Figure 3 As shown, the hot knife mechanism 2 includes a hot knife mounting bracket 21, a hot knife cutting driver 22, a connecting rod 23, a knife holder 24, and a cutting hot knife 25. The hot knife mounting bracket 21 is connected to the output end of the hot knife guide driver 4. The hot knife cutting driver 22 is mounted on the hot knife mounting bracket 21, and the output end of the hot knife cutting driver 22 is hinged to the connecting rod 23. The knife holder 24 is hinged to the hot knife mounting bracket 21 via a bearing. The end of the connecting rod 23 away from the hot knife cutting driver 22 is connected to the bearing. The cutting hot knife 25 is mounted on the knife holder 24. The hot knife cutting driver 22 is used to drive the knife holder 24 and the cutting hot knife 25 to rotate. Specifically, the hot knife cutting driver 22 can be a cylinder. The hot knife cutting driver 22 drives the knife holder 24 and the cutting hot knife 25 to rotate via the connecting rod 23, which can flexibly adjust the angle and pressing force of the cutting hot knife 25 to ensure that the cutting hot knife 25 can closely adhere to the surface of the photovoltaic module and achieve precise cutting for EVA adhesive layers of different thicknesses. In the specific operation process, before the cutting hot blade 25 enters the cutting position, the hot blade cutting driver 22 retracts, raising the cutting hot blade 25 so that the photovoltaic module can enter under the cutting hot blade 25. After the photovoltaic module enters the cutting position, the hot blade cutting driver 22 quickly extends and remains in the extended state, pressing the cutting hot blade 25 downwards and always pressing it on the photovoltaic module. Initially, the cutting hot blade 25 is pressed on the edge of the photovoltaic module that has been milled off by the milling cutter, with the blade in contact with the glass.

[0022] Furthermore, there are two hot knife cutting drivers 22, which are distributed on both sides of the hot knife mounting bracket 21. In this embodiment, the two hot knife cutting drivers 22 are symmetrically distributed on both sides of the hot knife mounting bracket 21, which can realize bidirectional synchronous driving of the knife holder 24, ensuring that the knife holder 24 is subjected to uniform force during rotation, avoiding tilting of the knife holder 24 or deviation of the cutting hot knife 25 due to unilateral force, thereby ensuring the straightness of the cutting path and reducing damage to the edge of the assembly.

[0023] The hot knife mechanism 2 also includes a preheating heater 26 and a preheating air knife 27. The preheating air knife 27 is located on one side of the cutting hot knife 25 and preheats the photovoltaic module before the cutting hot knife 25 contacts it. The preheating air knife 27 is connected to the preheating heater 26 through a pipe, which can be a connecting hose. Air is heated by the preheating heater 26 and continuously blown out of the preheating air knife 27 towards the photovoltaic module. There are two preheating heaters 26. Hot air enters from both sides of the preheating air knife 27 through pipes and is then blown out of the preheating air knife 27, so that the hot air can cover the entire width of the photovoltaic module. Specifically, the preheating air knife 27, in conjunction with the preheating heater 26, preheats and softens the EVA adhesive layer on the surface of the photovoltaic module before the cutting hot knife 25 cuts it. This preheating process reduces the viscosity of the EVA adhesive layer, decreasing the frictional resistance between the cutting hot knife 25 and the adhesive layer. This not only makes cutting smoother but also prevents a sudden drop in temperature of the cutting hot knife 25 due to an overly hard adhesive layer, ensuring that the temperature of the cutting hot knife 25 remains stable within the optimal cutting range. Furthermore, preheating reduces the adhesion of the EVA adhesive layer during the cutting process, minimizing adhesive residue on the surface of the assembly and facilitating further processing of the assembly.

[0024] like Figure 1 As shown, the hot knife mechanism 2 also includes a heat insulation cover 28, which is located outside the cutting hot knife 25 and is covered with heat insulation cotton. The heat insulation cover 28 and the heat insulation cotton effectively reduce heat loss from the cutting hot knife 25, ensuring that the cutting hot knife 25 maintains a stable temperature during operation. This prevents inconsistent softening of the EVA adhesive layer due to temperature fluctuations, thus guaranteeing the stability of cutting quality. Simultaneously, the heat insulation structure concentrates heat in the cutting area, reducing the thermal impact on the surrounding environment and other components, and lowering the energy consumption of the device.

[0025] The hot knife mechanism 2 also includes an upper guide plate 291 and a lower guide plate 292, both of which are mounted on the hot knife mounting bracket 21. A guide space is formed between the upper guide plate 291 and the lower guide plate 292 to allow the assembly to pass through. This guide space guides the separated assembly along a preset path. Specifically, the guide space formed by the upper guide plate 291 and the lower guide plate 292 can precisely guide the separated backsheet and battery panel assembly, ensuring that the assembly extends along the preset path and preventing the assembly from shifting, wrinkling, or colliding due to its own weight or external forces after separation, thus ensuring the integrity of the assembly.

[0026] like Figure 4As shown, the assembly gripping mechanism 3 includes a gripping mounting frame 31, a gripping guide driver 32, a gripping finger cylinder 33, and a finger cylinder mounting box 37. The gripping guide driver 32 is mounted on the gripping mounting frame 31, and its output end is connected to the finger cylinder mounting box 37. The gripping finger cylinder 33 is mounted on the finger cylinder mounting box 37. The gripping guide driver 32 drives the finger cylinder mounting box 37 and the gripping finger cylinder 33 to move horizontally, and the gripping finger cylinder 33 grips the assembly. The gripping guide driver 32 can be a rodless cylinder, and there are two gripping guide drivers 32 and two gripping finger cylinders 33. The gripping guide driver 32 drives the gripping finger cylinder 33 to move horizontally, and the gripping position can be flexibly adjusted according to the extension length of the assembly to ensure that the gripping finger cylinder 33 can accurately grip the assembly at the appropriate position, avoiding the assembly from falling off or being damaged due to improper gripping position. The gripping action of the finger-gripping cylinder 33 is stable and reliable. The gripping force can be adjusted according to the thickness of the assembly, ensuring a firm grip while avoiding damage to the solar panel due to excessive gripping force, thus improving the recycling quality of the assembly. In the specific process, after the cutting hot knife 25 separates a certain length and the assembly extends a certain length beyond the insulation cover 28, the finger-gripping cylinder 33 moves to the position of the assembly and grips it. After the cutting hot knife 25 completes the cutting, the finger-gripping cylinder 33 drags the assembly onto the belt conveyor of the transmission mechanism 1 for easy transport.

[0027] The assembly clamping mechanism 3 also includes a clamping air knife 34, a clamping preheater 35, and a clamping connecting frame 36. The clamping connecting frame 36 is connected to the finger cylinder mounting box 37, the clamping air knife 34 is connected to one end of the clamping guide driver 32, and the clamping preheater 35 is connected to the clamping air knife 34 via a pipe. Specifically, the clamping connecting frame 36 is fixedly connected to the finger cylinder mounting box 37 by bolts, and the clamping air knife 34 is fixedly connected to one end of the clamping guide driver 32 by bolts. The pipe is a connecting hose, which can extend and retract within a certain range. While the clamping preheater 35 moves with the finger cylinder mounting box 37, the clamping air knife 34 remains stationary. The cooperation between the clamping air knife 34 and the clamping preheater 35 allows for secondary heating and reshaping of the assembly surface during the traction process of the assembly clamping mechanism 3. Heating can repair minor wrinkles or deformations on the assembly surface caused by cutting, making the assembly flatter and facilitating subsequent transportation, storage, and further disassembly.

[0028] An encoder, preferably a drawstring encoder, is installed on the hot knife guide driver 4. The encoder can record the movement stroke of the hot knife guide driver 4 in real time, thereby accurately obtaining the position information of the hot knife mechanism 2. Based on the data fed back by the encoder, the control system can precisely control the movement speed and position of the hot knife mechanism 2, ensuring that the hot knife mechanism 2 can adjust its movement parameters according to the length of the component and the cutting progress, avoiding problems such as over-cutting or incomplete cutting.

[0029] The hot-blade cutting device also includes a heating module connected to the hot-blade 25 for heating the blade. The heating module can precisely adjust the temperature of the hot-blade 25 according to actual cutting needs, enabling it to adapt to different types and aging levels of EVA adhesive layers. In the specific process, the hot-blade 25 is heated by resistance heating. Heating power supplies are connected to both sides of the hot-blade 25, and the output power of the heaters is adjusted to bring the temperature of the hot-blade 25 to a predetermined range and maintain it. Under thermally stable conditions, the blade edge temperature is approximately 200℃, which softens the EVA adhesive layer without melting it. The softened adhesive layer is then cut through the blade edge, thereby separating the photovoltaic module.

[0030] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, the above technical features can be freely combined, and several modifications and improvements can be made without departing from the concept of the present utility model, all of which fall within the protection scope of the present utility model. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.

Claims

1. A hot-blade cutting device for whole glass of photovoltaic modules, characterized in that, It includes a transmission mechanism (1), a hot knife mechanism (2), a combined clamping mechanism (3), and a hot knife guide driver (4). The transmission mechanism (1) is used to transmit photovoltaic modules; The hot knife mechanism (2) is movably connected to the transmission mechanism (1) via a guide slide rail (11) and is used to separate the assembly of the back sheet and the battery panel in the photovoltaic module from the complete glass. The assembly clamping mechanism (3) is mounted on the transmission mechanism (1) and is used to clamp and pull the assembly of the back sheet and the battery panel after the photovoltaic module has been cut and separated by the hot knife mechanism (2); The hot knife guide driver (4) is mounted on the transmission mechanism (1). The output end of the hot knife guide driver (4) is connected to the hot knife mechanism (2). The hot knife guide driver (4) is used to drive the hot knife mechanism (2) to move along the length direction of the transmission mechanism (1).

2. The hot knife cutting device for whole glass of photovoltaic modules according to claim 1, characterized in that, The hot knife mechanism (2) includes a hot knife mounting bracket (21), a hot knife cutting driver (22), a connecting rod (23), a knife holder (24), and a cutting hot knife (25); The hot knife mounting bracket (21) is connected to the output end of the hot knife guide driver (4). The hot knife cutting driver (22) is mounted on the hot knife mounting bracket (21). The output end of the hot knife cutting driver (22) is hinged to the connecting rod (23). The knife holder (24) is hinged to the hot knife mounting bracket (21) through a bearing. The end of the connecting rod (23) away from the hot knife cutting driver (22) is connected to the bearing. The cutting hot knife (25) is mounted on the knife holder (24). The hot knife cutting driver (22) is used to drive the knife holder (24) and the cutting hot knife (25) to rotate.

3. The hot knife cutting device for whole glass of photovoltaic modules according to claim 2, characterized in that, The number of hot knife cutting drivers (22) is two, and the two hot knife cutting drivers (22) are distributed on both sides of the hot knife mounting bracket (21).

4. The hot knife cutting device for whole glass of photovoltaic modules according to claim 2, characterized in that, The hot knife mechanism (2) also includes a preheating heater (26) and a preheating air knife (27). The preheating air knife (27) is located on one side of the cutting hot knife (25) and is connected to the preheating heater (26) through a pipe.

5. The hot knife cutting device for whole glass of photovoltaic modules according to claim 2, characterized in that, The hot knife mechanism (2) also includes a heat insulation cover (28), which is located on the outside of the cutting hot knife (25) and is covered with heat insulation cotton.

6. The hot knife cutting device for whole glass of photovoltaic modules according to claim 2, characterized in that, The hot knife mechanism (2) further includes an upper guide plate (291) and a lower guide plate (292). The upper guide plate (291) and the lower guide plate (292) are both mounted on the hot knife mounting bracket (21). A guide space is formed between the upper guide plate (291) and the lower guide plate (292) for the assembly to pass through. The guide space is used to guide the separated assembly to extend along a preset path.

7. The hot knife cutting device for whole glass of photovoltaic modules according to claim 1, characterized in that, The combined clamping mechanism (3) includes a clamping mounting bracket (31), a clamping guide driver (32), a clamping finger cylinder (33), and a finger cylinder mounting box (37). The gripping guide driver (32) is mounted on the gripping mounting bracket (31) and the output end of the gripping guide driver (32) is connected to the finger cylinder mounting box (37). The gripping finger cylinder (33) is mounted on the finger cylinder mounting box (37). The gripping guide driver (32) is used to drive the finger cylinder mounting box (37) and the gripping finger cylinder (33) to move horizontally. The gripping finger cylinder (33) is used to grip the assembly.

8. The hot knife cutting device for whole glass of photovoltaic modules according to claim 7, characterized in that, The combined clamping mechanism (3) also includes a clamping air knife (34), a clamping preheater (35), and a clamping connecting frame (36). The gripping connector (36) is connected to the finger cylinder mounting box (37), the gripping air knife (34) is connected to one end of the gripping guide driver (32), and the gripping preheater (35) is connected to the gripping air knife (34) through a pipe.

9. The hot knife cutting device for whole glass of photovoltaic modules according to claim 1, characterized in that, An encoder is mounted on the hot knife guide driver (4).

10. The hot knife cutting device for whole glass of photovoltaic modules according to claim 2, characterized in that, The hot knife cutting device also includes a heating module, which is connected to the hot cutting knife (25) and is used to heat the hot cutting knife (25).

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