Channel cleaning apparatus for photovoltaic module frame strips

Abstract

The application discloses a gutter cleaning equipment for a photovoltaic module frame strip, and the gutter cleaning equipment comprises a straightening unit, a cutting unit and a discharging unit, the cutting unit comprises a main cutting tool, an auxiliary cutting module and an auxiliary cutting tool, and the straightening unit comprises a plurality of upper straightening wheels and a plurality of lower straightening wheels. In one aspect, the application is based on cooperation of the main cutting tool, the auxiliary cutting tool and a wedge head module, and through synchronous straightening assistance, the overall removal of the residual material in the embedding groove and the glue groove is completed at one time, so that the cleaning efficiency is greatly improved, cutting unevenness or omission is avoided, the tool chipping rate and the residual glue rate are reduced. In another aspect, based on the position layout of the straightening point, the cutting and removal and the outward expansion, the straightening force and the matching of the gutter cleaning stress are kept, the deformation problem of the frame strip in the gutter cleaning process is solved, the coupling design of the straightening point and the cutting path not only strengthens the thoroughness of the gutter cleaning, but also provides a high-precision reference surface for a subsequent assembly process, and an integrated process breakthrough of the gutter cleaning, the straightening and the shaping is realized.

Description

Technical Field

[0001] This invention belongs to the field of edge strip cleaning technology, specifically relating to a cleaning device for the edge strips of photovoltaic modules. Background Technology

[0002] A photovoltaic (PV) module is a power generation device that generates direct current when exposed to sunlight. It consists of thin, solid-state photovoltaic cells made almost entirely of semiconductor materials (such as silicon). Specifically, it includes a glass plate, EVA adhesive layer, solar cells, backsheet, junction box, and frame strips. More than 90% of the materials can be recycled and reused, giving it considerable recycling value and high economic profit. Therefore, PV modules that have reached the end of their lifespan need to be recycled, which not only alleviates the shortage of raw materials for PV devices to some extent, but also avoids environmental pollution.

[0003] Currently, the removal method for recycling frame strips is mainly peeling. Once the edges are damaged, a large amount of adhesive and glass will remain in the frame groove. Therefore, it is necessary to remove the residue in the frame groove to achieve high-purity recycling of the frame strip without impurities. During the peeling process, the frame strip is basically broken by the external support rollers. Inevitably, deformation of the frame strip is caused during the external support process, usually with it lifting up from both ends. Therefore, before cleaning the groove, it is necessary to straighten and position it, and then use a scraper to cut and clean the frame groove.

[0004] However, the border groove includes an insert groove that matches the laminate and an adhesive groove located at the opening of the insert groove and recessed from the groove wall. If the above cleaning method is used, the following technical problems exist: 1. It can basically only remove the residue in the mounting groove, but cannot remove the adhesive layer in the glue tank. Therefore, there is a high residual adhesive rate. If the frame strip is recycled directly, it will not only affect the purity of the frame recycling, but also cannot be recycled back to the raw material standard. Moreover, the residual adhesive will generate gas in the subsequent melting or pyrolysis, causing environmental pollution or increasing the gas treatment cost. 2. The straightening and cutting of the edge strip are separate, and the cutting is not done in one go. Therefore, the efficiency of cleaning the groove is low. At the same time, once the straightening is deviated, it will not only easily cause the scraper to break, but also increase the residual glue rate (caused by incomplete scraping). Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an improved cleaning device for the frame strips of photovoltaic modules.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A grooving device for a photovoltaic module frame strip has a frame groove extending along its length. The frame groove includes an insert groove and an adhesive groove. The grooving device includes a straightening unit, a cutting unit, and a discharge unit. The cutting unit includes a main cutting tool, an auxiliary cutting module, and an auxiliary cutting tool arranged sequentially. The main cutting tool is used to remove residual adhesive film and glass in the insert groove. The auxiliary cutting module includes a wedge module that wedges into the insert groove to expand the side where the adhesive groove is located. The auxiliary cutting tool is used to remove residual adhesive film in the adhesive groove and the insert groove. The straightening unit includes multiple upper straightening wheels and multiple lower straightening wheels arranged vertically to form a horizontally extending straightening channel. The tops of the main cutting tool, the auxiliary cutting tool, and the wedge module are located in the straightening channel and are offset from the multiple lower straightening wheels. Some of the multiple upper straightening wheels correspond one-to-one with the main cutting tool, the auxiliary cutting tool, and the wedge module. The multiple upper straightening wheels, the multiple lower straightening wheels, the main cutting tool, the auxiliary cutting tool, and the wedge module cooperate to straighten the frame strip vertically.

[0007] According to a specific embodiment and preferred aspect of the present invention, the main cutting tool, the wedge module, and the auxiliary cutting tool are all inserted into the insert groove to equal or progressively increasing depths. During auxiliary cutting, the cutting area formed by the auxiliary cutting tool covers the inner walls of the insert groove and the adhesive groove in the orthographic projection along the length of the frame strip. Here, through progressive main and auxiliary cutting, not only is the cutting difficulty reduced and tool life extended, but the lateral stress generated by the extrusion of the adhesive film during cutting is also reduced, lowering the probability of lateral bending deformation of the frame strip. Simultaneously, the wedge module can simultaneously assist in peeling off residual adhesive film from the inner wall of the insert groove when it is wedged into it, further reducing the wear of the auxiliary cutting tool.

[0008] According to a specific embodiment and preferred aspect of the present invention, the main cutting tool, the auxiliary cutting tool, and the wedge module are respectively rotatably arranged around a horizontal axis, wherein a plurality of the upper straight wheels and a plurality of the lower straight wheels rotate and drive the frame strip to pass sequentially through the main cutting tool, the wedge module, and the auxiliary cutting tool.

[0009] Preferably, the main cutting tool, auxiliary cutting tool, and wedge module are rotated in the opposite direction to the lower straightening wheel. By rotating the main cutting tool, auxiliary cutting tool, and wedge module in the opposite direction, some of the stress caused by the lower straightening wheel driving the frame strip to deform upwards can be offset, further improving the straightening effect of the frame strip, and enhancing the cleaning and outward deformation effects.

[0010] According to another specific embodiment and preferred aspect of the invention, the cutting width of the main cutting tool is less than or equal to the width of the insert groove; the edge of the wedge module has an annular wedge portion extending around a horizontal axis, wherein an outwardly expanding inclined surface is formed on the side of the wedge portion facing the glue groove, and a vertical plane is formed on the opposite side. When wedged in, the vertical plane fits against the side of the frame groove away from the glue groove, and the side of the frame groove where the glue groove is located abuts against the outwardly expanding inclined surface and deforms outward based on the vertical plane. Here, based on the cooperation between the wedge portion and the main cutting tool, the outward expansion can effectively prevent the frame strip from shifting in the width direction and ensure consistent outward expansion angles.

[0011] Preferably, the auxiliary cutting tool includes a first auxiliary cutting tool and a second auxiliary cutting tool arranged side by side along a direction perpendicular to the length of the frame strip. When expanding outward, the cutting width formed by the first auxiliary cutting tool covers the width of the frame groove; the second auxiliary cutting tool is used to remove the adhesive film from the area of ​​the bottom surface of the frame strip near the frame groove. Here, the first and second auxiliary cutting tools are used to clean the frame groove and the area of ​​the bottom surface of the frame strip near the frame groove in sections, so as to clean the inside and outside of the frame groove simultaneously and improve the cleaning effect.

[0012] According to another specific embodiment and preferred aspect of the present invention, a portion of the plurality of colonel straight wheels has a first limiting protrusion formed from the edge on the side where the adhesive groove on the frame strip is located, and another portion has a second limiting protrusion formed from the edge on the opposite side of the frame strip.

[0013] Preferably, the upper colonel straight wheel that corresponds to the wedge module has a second limiting protrusion, and the other upper colonel straight wheels have a first limiting protrusion.

[0014] According to another specific embodiment and preferred aspect of the present invention, the straightening unit further includes a receiving module disposed at the feeding end of the straightening channel, a reference module disposed on opposite sides of the straightening channel, and a pressing module, wherein the top of the receiving module is flush with the top of the lower straightening wheel, the frame strip abuts against the reference module from the side where the glue groove is located, and the pressing module has a tendency to press the frame strip towards the reference module; and / or, the discharging unit includes an upper output wheel and a lower output wheel, wherein a material-blocking protrusion is formed on the upper output wheel or the lower output wheel near the side where the glue groove is located on the frame strip, and when the frame strip passes between the upper output wheel and the lower output wheel, the side where the glue groove is located on the frame strip after its expansion abuts against the corresponding material-blocking protrusion.

[0015] According to another specific embodiment and preferred aspect of the invention, the cutting unit further includes a limiting block disposed between the main cutting tool and the auxiliary cutting module, wherein the limiting block is inserted from bottom to top into the insert groove after being cut by the main cutting tool and forms a wide-width limiting.

[0016] Due to the implementation of the above technical solutions, the present invention has the following advantages compared with the prior art: Existing technologies can only remove residues in the insert groove, but cannot remove the adhesive layer in the glue tank. Therefore, there is a high residual adhesive rate. If the frame strip is recycled directly, it will not only affect the purity of the recycled frame strip, but also make it impossible to recycle it to the raw material standard. Moreover, the residual adhesive will generate gas during subsequent melting or pyrolysis, causing environmental pollution or increasing gas treatment costs. The straightening and cutting of the frame strip are separate, and the cutting method is not completed in one step. Therefore, the efficiency of cleaning the groove is low. At the same time, once the straightening is deviated, it will not only easily cause the scraper to break, but also increase the residual adhesive rate (caused by incomplete scraping). This application presents a comprehensive structural design for a photovoltaic module frame strip cleaning device, cleverly addressing the shortcomings and defects of existing technologies. Using this device, the frame strip is horizontally inserted into a straightening channel along its length. Multiple upper and lower straightening rollers straighten the strip, which then passes sequentially through a main cutting tool, an auxiliary cutting module, and an auxiliary cutting tool. The main cutting tool removes residual adhesive film and broken glass from the mounting groove. A wedge module then wedges into the mounting groove to expand the adhesive groove side of the frame strip, causing the groove opening to turn outwards towards the auxiliary cutting tool. The auxiliary cutting tool then removes any remaining adhesive film from the adhesive groove and mounting groove. Simultaneously, during the main and auxiliary cutting cleaning processes, as well as the outward expansion deformation, some of the upper straightening rollers correspond one-to-one with the main cutting tool, auxiliary cutting tool, and wedge module. Furthermore, the multiple upper and lower straightening rollers, the main cutting tool, the auxiliary cutting tool, and the wedge module work together to level the frame strip vertically. Therefore, compared with the prior art, this invention, on the one hand, is based on the collaboration of the main cutting tool, the auxiliary cutting tool, and the wedge module, to complete the comprehensive removal of residues in the insert groove and glue groove in one go through synchronous straightening assistance. This not only greatly improves cleaning efficiency but also avoids uneven cutting or omissions, reducing tool chipping rate and residual glue rate. On the other hand, based on the layout of the straightening points and the positions of the cutting and expansion, it maintains the matching of the straightening force and the alignment cleaning stress, solving the problem of deformation of the edge strip during the cleaning process. At the same time, the coupling design of the straightening points and the cutting path not only enhances the thoroughness of cleaning but also provides a high-precision reference surface for subsequent assembly processes, achieving an integrated process breakthrough of cleaning, straightening, and shaping. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram (including the frame strip) of the photovoltaic module frame strip cleaning device of the present invention. Figure 2 for Figure 1 Enlarged schematic diagram of a local part of the structure; Figure 3 for Figure 1 Enlarged schematic diagram of a local part of the structure (border strip omitted); Figure 4 for Figure 2 Front view diagram; Figure 5 for Figure 4 Rear view diagram; Figure 6 for Figure 4 A top-down view; Figure 7 for Figure 4 Enlarged sectional view of the main cutting tool and the upper straight wheel along the AA direction; Figure 8 for Figure 4 Enlarged cross-sectional view of the middle wedge module and the colonel's straight wheel along the BB direction; Figure 9 This is a cross-sectional view of the photovoltaic module frame strip in this embodiment; Among them: 1. Straightening unit; 10. Upper straightening wheel; 101. First limiting protrusion; 102. Second limiting protrusion; 11. Lower straightening wheel; 12. Guiding module; 13. Reference module; 14. Pressing module; 15. Limiting wheel; 2. Cutting unit; 20. Main cutting tool; 21. Auxiliary cutting module; 210. Wedge module; b. Wedge entry part; b0. Outward expansion slope; b1. Vertical plane; 22. Auxiliary cutting tool; 221. First auxiliary cutting tool; 222. Second auxiliary cutting tool; 23. Limiting block; 3. Discharge unit; 30. Upper output wheel; 31. Lower output wheel; d. Material stop protrusion; T, border strip; T0, border groove; T00, mounting groove; T01, glue groove. Detailed Implementation

[0018] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to 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 invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this invention, 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 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0024] like Figures 1 to 8 As shown, the grooving equipment for the photovoltaic module frame strip involved in this embodiment includes a straightening unit 1, a cutting unit 2, and a discharge unit 3.

[0025] Combination Figure 9 As shown, the frame strip in this embodiment is the frame strip T used in photovoltaic modules, which has a frame groove T0 extending along its own length direction. The frame groove T0 includes an insert groove T00 and an adhesive groove T01. In the original state, the groove opening of the adhesive groove T01 is horizontally facing inward.

[0026] In this example, the straightening unit 1 includes multiple upper straightening wheels 10 and multiple lower straightening wheels 11 arranged vertically to form a horizontally extending straightening channel t, and a motor that drives the upper straightening wheels 10 and / or the lower straightening wheels 11 to rotate. The multiple upper straightening wheels 10 are connected by a synchronous belt and rotate synchronously, and the multiple lower straightening wheels 11 are connected by a synchronous belt and rotate synchronously. The rotational cooperation of the multiple upper straightening wheels 10 and the multiple lower straightening wheels 11 forms the straightening stress and horizontal transmission force acting on the frame strip.

[0027] For ease of implementation, the straightening unit 1 also includes a receiving module 12 located at the feeding end of the straightening channel t, a reference module 13 and a clamping module 14 located on opposite sides of the straightening channel t, and a limiting wheel 15 located above the straightening channel t. The top of the receiving module 12 is flush with the top of each lower straightening wheel 11. There are multiple reference modules 13, which are alternately arranged with the two upper straightening wheels 10 near the feeding end of the straightening channel t. During feeding, the groove opening of the frame groove T0 faces downward, and the frame strip T adheres to the reference module 13 from the side where the glue groove T01 is located, and is supported by the receiving module 12 from the bottom surface. The top of the material is pushed horizontally by an operator or a robotic arm; the clamping module 14 tends to clamp the frame strip T towards the reference module 13, wherein the clamping module 14 is rotatably mounted on the equipment frame around the vertical center line, and a torsion spring is provided at the rotatable connection of the clamping module 14 to form an elastic clamping force. Multiple clamping modules 14 can be provided and distributed at intervals along the length of the frame strip; the limiting wheel 15 is located between the two upper straightening wheels 10 near the feeding end of the straightening channel t to ensure that the frame strip is transported straight when it enters the straightening channel for straightening.

[0028] In this example, the cutting unit 2 includes a main cutting tool 20, an auxiliary cutting module 21, and an auxiliary cutting tool 22 arranged sequentially. The main cutting tool 20 is used to remove the residual adhesive film and glass in the insert groove T00. The auxiliary cutting module 21 includes a wedge module 210 that wedges into the insert groove T00 to expand the side where the adhesive groove T01 is located. The auxiliary cutting tool 22 is used to remove the adhesive film remaining in the adhesive groove T01 and the insert groove T00. The tops of the main cutting tool 20, the auxiliary cutting tool 22, and the wedge module 210 are located in the straightening channel t and are offset and separated from the multiple lower straightening wheels 11. Some of the multiple upper straightening wheels 10 correspond to and cooperate with the main cutting tool 20, the auxiliary cutting tool 22, and the wedge module 210. 1. The main cutting tool 20, the auxiliary cutting tool 22, and the wedge module 210 cooperate to level the frame strip T vertically; a portion of the multiple upper straight wheels 10 form a first limiting protrusion 101 on the side of the frame strip T near the frame groove T0 from the edge, and another portion forms a second limiting protrusion 102 on the opposite side of the frame strip T from the edge. The upper straight wheel 10 that corresponds to and cooperates with the wedge module 210 forms the second limiting protrusion 102, and the remaining upper straight wheels 10 form the first limiting protrusion 101. It should be noted that the first limiting protrusion 101 of the upper straight wheel 10 corresponding to the auxiliary cutting tool 22 is misaligned with the other first limiting protrusions 101 to match the side where the outwardly expanded glue groove T01 is located on the frame strip T.

[0029] In some specific embodiments, the main cutting tool 20, the wedge module 210, and the auxiliary cutting tool 22 are all inserted into the fitting groove T00 to equal or progressively increasing depths. During auxiliary cutting, the cutting area formed by the auxiliary cutting tool 22 covers the inner walls of the fitting groove T00 and the glue groove T01 in the orthogonal projection along the length of the frame strip T. It should be noted that the depth of the main cutting tool 20, the wedge module 210, and the auxiliary cutting tool 22 inserted into the fitting groove T00 can be set according to the actual amount of residual glue in the frame groove. For example, if the amount of residual glue is large, the depth of the main cutting tool 20, the wedge module 210, and the auxiliary cutting tool 22 inserted into the fitting groove T00 increases progressively; if the amount of residual glue is small, the depth of the main cutting tool 20, the wedge module 210, and the auxiliary cutting tool 22 inserted into the fitting groove T00 is equal and all equal to the depth of the fitting groove T00. Therefore, the main cutting tool 20 and the wedge module 210 can be configured to be vertically adjustable. Here, through the step-by-step main and auxiliary cutting, not only is the cutting difficulty reduced and the tool life extended, but the lateral stress generated by squeezing broken glass and adhesive film during cutting is also reduced, thus reducing the probability of lateral bending deformation of the frame strip; at the same time, the wedge module can simultaneously assist in peeling off the residual adhesive film on the inner wall of the insert groove when it is wedged into the insert groove, further reducing the wear of the auxiliary cutting tool.

[0030] Simultaneously, the main cutting tool 20, the wedge head module 210, and the auxiliary cutting tool 22 are respectively arranged to rotate around a horizontal axis. Multiple upper straight wheels 10 and multiple lower straight wheels 11 rotate and drive the frame strip T to pass sequentially through the main cutting tool 20, the wedge head module 210, and the auxiliary cutting tool 22. In this embodiment, the rotational power of the main cutting tool 20, the wedge head module 210, and the auxiliary cutting tool 22 can be any conventional power mechanism, such as a motor.

[0031] In some specific embodiments, the main cutting tool 20, the wedge module 210, and the auxiliary cutting tool 22 are rotated in the opposite direction to the lower straightening wheel 11. By rotating the main cutting tool, the auxiliary cutting tool, and the wedge module in the opposite direction, some of the stress caused by the lower straightening wheel driving the frame strip to deform upwards can be offset, further improving the straightening effect of the frame strip, as well as the cleaning and outward deformation effects. In other specific embodiments, the main cutting tool 20 and the wedge module 210 are rotated in the opposite direction to the lower straightening wheel 11, while the auxiliary cutting tool 22 is rotated in the same direction as the lower straightening wheel 11 to exert a force on the frame strip in the same direction as the transmission direction, synchronously assisting in the transmission and discharge of the frame strip.

[0032] In this example, the main cutting tool 20 is a conventional multi-blade tool, such as a three-sided milling cutter. During installation, the rotation center line of the main cutting tool 20 is perpendicular to the length direction of the frame strip. In the orthographic projection of the length direction of the frame strip, the vertical center line of the main cutting tool 20 coincides with the center line of the insert groove T00. At the same time, the cutting width of the main cutting tool 20 is less than or equal to the width of the insert groove T00 before expansion. Generally, the cutting width of the main cutting tool 20 is equal to the width of the insert groove T00 before expansion. That is to say, when the main cutting tool 20 extends into the insert groove T00, the opposite two cutting edges of the main cutting tool 20 are in contact with the opposite two sides of the insert groove T00. When the depth of the main cutting tool 20 extending into the insert groove T00 is equal to the depth of the auxiliary cutting tool 22 extending into the insert groove T00, the cutting edge located in the middle of the main cutting tool 20 can simultaneously cut the bottom of the insert groove T00.

[0033] In this example, the edge of the wedge module 210 has an annular wedge portion b extending around a horizontal axis. The wedge portion b has an outwardly expanding inclined surface b0 on one side facing the glue groove T01 and a vertical plane b1 on the opposite side. When the wedge is inserted, the side of the frame groove T0 where the glue groove T01 is located abuts against the outwardly expanding inclined surface b0 and deforms outward, so that the groove opening of the glue groove T01 faces downward toward the auxiliary cutting tool 22. The vertical plane b1 is flush with the cutting edge of the main cutting tool 20 on the side away from the glue groove T01. When the wedge is inserted, the vertical plane b1 fits against the side wall of the outwardly expanding pre-fitting groove T00. Here, based on the cooperation between the wedge portion and the main cutting tool, the outward expansion effectively prevents the frame strip from shifting in the width direction and ensures a consistent outward expansion angle.

[0034] In this example, the auxiliary cutting tool 22 includes a first auxiliary cutting tool 221 and a second auxiliary cutting tool 222 arranged side by side along the direction perpendicular to the length of the frame strip T. The first and second auxiliary cutting tools 221 and 222 can be steel wool or steel wool brush rollers. The outer diameter of the first auxiliary cutting tool 221 is larger than the outer diameter of the second auxiliary cutting tool 222. When expanding outward, the cutting width formed by the first auxiliary cutting tool 221 covers the width of the frame groove T0 (or the insert groove T00) after expansion. During auxiliary cutting, the steel wool strip on the first auxiliary cutting tool 221 adaptively fills the insert groove T00 and the glue groove T01. The second auxiliary cutting tool 222 is used to remove residual glue film from the area of ​​the bottom surface of the frame strip T near the frame groove T0. Here, the first and second auxiliary cutting tools are used to clean the frame groove and the area of ​​the bottom surface of the frame strip near the frame groove in sections, so as to clean the inside and outside of the frame groove simultaneously and improve the cleaning effect.

[0035] To further facilitate implementation, the cutting unit 2 also includes a limiting block 23 disposed between the main cutting tool 20 and the auxiliary cutting module 21. The limiting block 23 is inserted from bottom to top into the insert groove T00 after being cut by the main cutting tool 20 and forms a width-direction limiting. The limiting block 23 is set to gradually narrow against the movement direction of the frame strip T to further facilitate the auxiliary scraping of the residue in the insert groove T00 and ensure the accuracy of the outer expansion reference.

[0036] In addition, the discharge unit 3 includes an upper output wheel 30 and a lower output wheel 31, wherein a material-blocking protrusion d is formed on the upper output wheel 30 or the lower output wheel 31 near the side where the glue groove T01 on the side frame strip T is located. When the side frame strip T passes between the upper output wheel 30 and the lower output wheel 31, the side where the glue groove T01 on the side frame strip T is expanded abuts against the corresponding material-blocking protrusion d.

[0037] In summary, after using the photovoltaic module frame strip cleaning equipment of this embodiment, the frame strip is horizontally inserted into the straightening channel along its own length direction, and multiple upper and lower straightening rollers straighten the frame strip and pass it sequentially through the main cutting tool, the auxiliary cutting module, and the auxiliary cutting tool. The main cutting tool rotates to remove residual adhesive film and broken glass from the mounting groove. Then, the annular wedge portion on the wedge module rotates and wedges into the mounting groove, so that the side containing the adhesive groove abuts against the outwardly expanding inclined surface of the wedge portion and deforms outward, causing the groove opening to... The outer edge is turned outward toward the auxiliary cutting tool; then, the first auxiliary cutting tool in the auxiliary cutting tool cleans the adhesive film from the expanded insert groove and adhesive groove, and the second auxiliary cutting tool cleans the residual adhesive film from the area near the edge groove on the bottom surface of the edge strip; at the same time, during the main cutting and auxiliary cutting cleaning, as well as the outward deformation process, some of the multiple upper straight wheels correspond to and cooperate with the main cutting tool, auxiliary cutting tool and wedge head module, and the rotation of multiple upper straight wheels, multiple lower straight wheels, main cutting tool, auxiliary cutting tool and wedge head module cooperates to level the edge strip in the vertical direction.

[0038] Therefore, compared with the prior art, this invention, on the one hand, is based on the collaboration of the main cutting tool, the auxiliary cutting tool, and the wedge module, to complete the thorough removal of residues in the insert groove and glue groove in one go through synchronous straightening assistance. This not only significantly improves cleaning efficiency but also avoids uneven cutting or omissions, reducing tool breakage rate and residual glue rate. On the other hand, based on the layout of the straightening points and the positions of the cutting and expansion, it maintains the matching of the straightening force and the alignment cleaning stress, solving the problem of edge strip deformation during the cleaning process. At the same time, the coupling design of the straightening points and the cutting path not only enhances the thoroughness of cleaning but also provides a high-precision reference surface for subsequent assembly processes, achieving an integrated process breakthrough of cleaning, straightening, and shaping. Thirdly, through the step-by-step main and auxiliary cutting, it not only reduces the cutting difficulty and extends tool life but also reduces crushing during cutting. The lateral stress generated by the glass and adhesive film reduces the probability of lateral bending deformation of the frame strip; at the same time, the wedge module can simultaneously assist in peeling off the residual adhesive film on the inner wall of the mounting groove when wedging into it, further reducing the wear of the auxiliary cutting tool; fourthly, by rotating the main cutting tool, auxiliary cutting tool and wedge module in opposite directions, it can offset part of the stress caused by the lower straightening wheel driving the frame strip to deform upward, further improving the straightening effect of the frame strip, improving the cleaning effect and the outward expansion deformation effect; fifthly, based on the cooperation between the wedge and the main cutting tool, it can effectively prevent the frame strip from shifting in the width direction during outward expansion and ensure that the outward expansion angle is consistent; sixthly, by using the first and second auxiliary cutting tools to achieve zoned cleaning of the frame groove and the area of ​​the bottom surface of the frame strip near the frame groove, the frame groove is cleaned simultaneously inside and out, improving the cleaning effect.

[0039] The present invention has been described in detail above, with the aim of enabling those skilled in the art to understand and implement the invention. However, this description should not be construed as limiting the scope of protection of the invention. All equivalent changes or modifications made in accordance with the spirit and essence of the invention should be included within the scope of protection of the invention.

Claims

1. A cleaning device for a photovoltaic module frame strip, wherein the frame strip has a frame groove extending along its own length, wherein the frame groove includes an insertion groove and an adhesive groove, and the cleaning device includes a straightening unit, a cutting unit, and a discharge unit, characterized in that, The cutting unit includes a main cutting tool, an auxiliary cutting module, and an auxiliary cutting tool arranged sequentially. The main cutting tool is used to remove residual adhesive film and glass in the mounting groove. The auxiliary cutting module includes a wedge-shaped module that wedges into the mounting groove to expand the side where the adhesive groove is located. The auxiliary cutting tool is used to remove residual adhesive film in the adhesive groove and mounting groove. The straightening unit includes multiple upper straightening wheels and multiple lower straightening wheels arranged vertically to form a horizontally extending straightening channel. The tops of the main cutting tool, auxiliary cutting tool, and wedge-shaped module are located in the straightening channel and are staggered and separated from the multiple lower straightening wheels. Some of the multiple upper straightening wheels correspond one-to-one with the main cutting tool, auxiliary cutting tool, and wedge-shaped module. The multiple upper straightening wheels, multiple lower straightening wheels, main cutting tool, auxiliary cutting tool, and wedge-shaped module cooperate to straighten the frame strip vertically.

2. The cleaning device for the frame strip of a photovoltaic module according to claim 1, characterized in that, The main cutting tool, wedge module, and auxiliary cutting tool are all inserted into the mounting groove to equal or progressively increasing depths. During auxiliary cutting, the cutting area formed by the auxiliary cutting tool covers the inner wall of the mounting groove and the glue groove in the orthogonal projection along the length of the frame strip.

3. The cleaning device for the frame strip of a photovoltaic module according to claim 1, characterized in that, The main cutting tool, auxiliary cutting tool, and wedge module are respectively arranged to rotate around a horizontal axis. Multiple upper straight wheels and multiple lower straight wheels rotate and drive the frame strip to pass through the main cutting tool, wedge module, and auxiliary cutting tool in sequence.

4. The cleaning device for the frame strip of a photovoltaic module according to claim 3, characterized in that, The main cutting tool, auxiliary cutting tool, and wedge module are oriented in the opposite direction to the lower straight wheel.

5. The cleaning device for the frame strip of a photovoltaic module according to claim 3, characterized in that, The cutting width of the main cutting tool is less than or equal to the width of the insert groove; the edge of the wedge module has an annular wedge portion extending around the horizontal axis, wherein the wedge portion has an outwardly expanding inclined surface on one side facing the glue groove and a vertical plane on the opposite side. When wedged in, the vertical plane fits the side of the frame groove away from the glue groove, and the side of the frame groove where the glue groove is located abuts against the outwardly expanding inclined surface and deforms outward based on the vertical plane.

6. The cleaning device for the frame strip of a photovoltaic module according to claim 1, characterized in that, The auxiliary cutting tool includes a first auxiliary cutting tool and a second auxiliary cutting tool arranged side by side along the direction perpendicular to the length of the frame strip. When the cutting width is expanded outward, the cutting width formed by the first auxiliary cutting tool covers the width of the frame groove. The second auxiliary cutting tool is used to remove the adhesive film in the area of ​​the bottom surface of the frame strip near the frame groove.

7. The cleaning device for the frame strip of a photovoltaic module according to claim 1, characterized in that, A portion of the plurality of colonel straight wheels has a first limiting protrusion formed from its edge that fits the side of the glue groove on the frame strip, and another portion has a second limiting protrusion formed from its edge that fits the opposite side of the frame strip.

8. The cleaning device for the frame strip of a photovoltaic module according to claim 7, characterized in that, The upper straight wheel that corresponds to and cooperates with the wedge module has a second limiting protrusion, and the other upper straight wheels have a first limiting protrusion.

9. The cleaning device for the frame strip of a photovoltaic module according to claim 1, characterized in that, The straightening unit further includes a receiving module disposed at the feeding end of the straightening channel, a reference module disposed on opposite sides of the straightening channel, and a pressing module, wherein the top of the receiving module is flush with the top of the lower straightening wheel, the edge strip abuts against the reference module from the side where the glue groove is located, and the pressing module has a tendency to press the edge strip towards the reference module; and / or, the discharge unit includes an upper output wheel and a lower output wheel, wherein a material-blocking protrusion is formed on the upper output wheel or the lower output wheel near the side where the glue groove on the edge strip is located, and when the edge strip passes between the upper output wheel and the lower output wheel, the side where the glue groove on the edge strip is expanded abuts against the corresponding material-blocking protrusion.

10. The cleaning device for the frame strip of a photovoltaic module according to claim 1, characterized in that, The cutting unit further includes a limiting block disposed between the main cutting tool and the auxiliary cutting module, wherein the limiting block is inserted from bottom to top into the insert groove after being cut by the main cutting tool and forms a wide-width limiting.

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