Photovoltaic module frame strip layering and gradual widening type glue scraping equipment and process

Abstract

The present invention discloses a photovoltaic module frame strip layering and gradually widening type glue scraping device and process, and the glue scraping device includes a positioning unit and a scraping unit. On the one hand, the present invention is based on the segmented and gradually widened cutting amount method to flatten and press the frame strips for gradual glue scraping, and based on the groove depth of the docking groove, the cutting amount formed by the upper and lower layered and graded cutter heads matches the groove depth, and at the same time, the front end of the cutting is also provided with a cross-cutting device that can remove obstacles that emerge from the docking groove, thereby reducing the probability of the tool cutting the frame strip; on the other hand, based on the steps formed by the sharp angle and flat angle of the frontmost scraper, the tool tilting movement tendency is eliminated during cutting, and the tool life is extended while maintaining equal thickness cutting, thereby improving the scraping quality and efficiency.

Description

Technical Field

[0001] The invention belongs to the field of photovoltaic technology, and in particular relates to a photovoltaic module frame strip layering and gradually widening type glue scraping device, and also relates to a frame strip glue scraping process for recycling photovoltaic modules. Background Art

[0002] Photovoltaic modules include glass panels, EVA adhesive layers, battery cells, back panels, junction boxes and frames, of which more than 90% of the materials can be recycled and reused. Especially for frames, which are basically dismantled by peeling. Therefore, there will be a large amount of adhesive layer in the docking grooves of the frames, and most of the recycled modules will be deformed, which will bring great inconvenience to the later removal of the adhesive layer.

[0003] However, the current method of removing the rubber layer is basically to remove it with a scraper in one movement, so there are the following defects:

[0004] 1) Due to the deformation of the frame strip itself, the scraping amount is certain. Therefore, it is easy to cause material jamming and tool damage due to the deformation of the frame strip, which seriously increases the recycling cost;

[0005] 2) Once broken glass adheres to the adhesive layer, if it is not handled first, it may cause obstacles to the forward movement of the scraper. If the broken glass is sandwiched in the adhesive layer, it will not only affect the difficulty of scraping, but also increase the chipping rate, while also increasing the deformation rate of the docking groove, thereby affecting the scraping quality.

[0006] In order to overcome the above-mentioned difficulties, for example: CN202411676338.9 discloses a rubber strip scraping mechanism for recycling frame strips. Specifically, after adopting the rubber strip scraping mechanism, after the frame strip is pressed by the pressing module, the mold base is moved forward to drive the front scraping movement of the front scraper head, so that the multi-stage front scraper forms a layered scraping from front to back, wherein the sum of the scraping amounts formed by the multi-stage front scraper is equal to the groove depth of the frame groove to gradually scrape off the rubber strip and broken glass in the frame groove, while keeping the forward push module pressed on the frame strip. And as the moving mold base moves synchronously, the scraping segments are flattened section by section; then the moving mold base moves backward, driving the back scraping knife head to move back, so that the back scraping knife can scrape out all the residual rubber strips and broken glass in the frame groove from the frame groove in one back scraping. In addition, the front scraper head is divided into a plurality of sections arranged in sequence from front to rear, wherein the width of the plurality of sections in the left and right directions gradually increases from front to rear, and the front scrapers of each level are distributed in sequence on each section or / and at the junction of adjacent sections, thereby reducing the probability of waste chips falling to the rear in the front scraping.

[0007] However, the applicant found the following defects in practice:

[0008] 1) The front-stage scrapers used are basically pointed forward, and there is a smooth transition from the bottom of the sharp angle to the back. Therefore, the scraping force generated by the front-stage scrapers is upward and forward, which greatly increases the tendency of the scraper to tilt, causing the thickness of the scraping to change, affecting the quality of the rubber strip removal (causing the rubber bottom layer to remain);

[0009] 2) Since the cutting amount is only layered in the thickness direction, and the change in the width direction only considers chip removal, there is no inherent correlation between the thickness cutting amount and the width cutting amount, which in turn affects the cutting efficiency and service life of the tool, and also increases the probability of scraping the border strip due to the deformation of the border strip. Summary of the invention

[0010] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an improved photovoltaic module frame strip layering and gradually widening type glue scraping device.

[0011] At the same time, the invention also relates to a process for scraping glue on a frame strip.

[0012] In order to solve the above technical problems, the technical solution adopted by the present invention is as follows:

[0013] A photovoltaic module frame strip layering and gradually widening type glue scraping equipment, comprising a positioning unit and a scraping unit, wherein the scraping unit comprises a scraping blade group, an obstacle removal group and a power group, the scraping blade group comprises a blade holder and a tool, the tool forms a multi-stage blade head arranged in sequence from top to bottom and from front to back from the bottom, the obstacle removal group comprises an obstacle removal module installed at the front end of the blade holder and capable of fitting the upper edge of the docking groove, in particular, the thickness to be cut formed by the bottom surface of the multi-stage blade head from front to back is gradually reduced in an arithmetic progression, and the tolerance is d1; the scraping width formed by the multi-stage blade head from front to back in the thickness direction is gradually widened, wherein the width is gradually widened, and the width is gradually widened. The level width variation changes in an arithmetic progression with a tolerance of d2, d1≤d2≤6d1. Each level of scraping gradually maintains external support from the middle to both sides to assist the obstacle removal module in flattening and shaping the frame strips. A chip groove is formed between each two adjacent levels of cutter heads. Waste chips are located in the chip groove and move out of the front end of the docking groove synchronously with the cutter head. The cutter heads formed by the tool are graded from front to back into levels 1, 2, 3...N, wherein the cutter head of level 1 forms a sharp-angle cutting portion and a plane cutting portion, wherein the rear end of the sharp-angle chip cutting portion is located above the front end of the plane cutting portion, and a height difference formed between the two ends is d1.

[0014] Preferably, d2 = 2d1. Generally, it is an even multiple, either twice or four times.

[0015] According to a specific implementation and preferred aspect of the present invention, the tip angles of the tool head corresponding to the 1st, 2nd, 3rd ... Nth levels are ∠1, ∠2, ∠3 ... ∠N, among which ∠1 is the smallest, and 30°≤∠1≤60°. The smaller the angle, the easier it is to shovel in.

[0016] Preferably, the front end of ∠1 is rounded or straight-angled. Based on the thickness of the adhesive layer, a substantial choice is made, and the straight-angled transition can be a bevel edge or a straight edge.

[0017] Furthermore, the angles of ∠2, ∠3 ... ∠N are equal. The height changes formed by the gradual descent are kept equal. The scraping is performed in the same angle and cutting mode.

[0018] According to another specific implementation and preferred aspect of the present invention, the cutting surfaces of the planar cutting parts formed by the cutter heads of the 1st, 2nd, 3rd ... Nth levels are arranged in parallel. The flat cutting directions formed are the same, which further avoids the tool tilting caused by cutting and insufficient cutting amount; at the same time, cutting is carried out in an equal amount layered mode, which reduces the cutting difficulty and prolongs the tool life cycle.

[0019] According to another specific implementation and preferred aspect of the present invention, the rear end of the tool is further provided with a backhoe cutter head in the opposite direction of the scraping, wherein a partition area is formed between the backhoe cutter head and the last-stage cutter head, and the bottom surface of the backhoe cutter head is flush with the bottom surface of the last-stage cutter head. Excess waste chips can be collected based on the partition area, and the bottom surface of the backhoe cutter head is flush with the bottom surface of the last-stage cutter head to facilitate backhoeing.

[0020] Preferably, the backhoe tip angle formed by the backhoe cutter head is ∠M, where ∠M=∠N. Not only is the strength high, but also it is convenient to implement a backhoe.

[0021] Furthermore, a backhoe groove is formed at the rear end of the backhoe cutter head, and waste chips are collected based on the backhoe groove to avoid interference of the backhoe caused by the waste chips.

[0022] In some specific embodiments, the tip of the backhoe cutter head is located inside the rear end face of the tool or the tip of the backhoe cutter head is flush with the rear end face of the tool, so as to avoid the tip of the backhoe cutter head being exposed and increasing the damage rate of the tool.

[0023] According to another specific implementation and preferred aspect of the present invention, the tool can be mounted on the tool holder in an upward and downward adjustable manner, so as to meet the requirements of removing the glue layer of the butt joint grooves with different depths.

[0024] According to another specific implementation and preferred aspect of the present invention, the positioning unit includes a positioning platform, a positioning fence positioned on the positioning platform, and multiple groups of clamping components distributed side by side along the length direction of the positioning fence, wherein the multiple groups of clamping components are distributed at equal intervals along the length direction of the frame strip, and the clamping components are adjusted in sequence to press down the sections to level the frame strip. The fence is used to abut against, and the frame strip is leveled while pressing down the sections.

[0025] According to another specific implementation and preferred aspect of the present invention, a plurality of the tools are arranged on the tool holder in sequence from front to back, wherein the tool heads of the plurality of tools are arranged in sequence from top to bottom and from front to back, and the sum of the cutting amount formed by the plurality of tools in the thickness direction is equal to the groove depth of the docking groove; the width direction of the plurality of tools is aligned with their own half-section as the reference, and the scraping width formed from front to back is gradually widened, wherein the width of the plurality of tools themselves is gradually widened from front to back in an arithmetic progression. Here, selection is made based on the groove depth, and generally two tools (or more tools) are used, which is more finely divided and more convenient for scraping; at the same time, component cutting is performed based on gradually widening cutting and maintaining equal tolerance.

[0026] Preferably, the cutter heads of each tool are divided into 1st, 2nd, 3rd, ... Nth levels from front to back, wherein the cutter head angles of the 1st level formed by the tools arranged from front to back gradually decrease. In this way, the layered cutting quality is good and the damage to the tool is small.

[0027] Preferably, a back-shoveling cutter head in the opposite direction of the scraping direction is formed on the cutter located at the rear end of the multiple cutters arranged from front to back. That is, there is only one back-shoveling cutter head. In this way, two adjacent cutters can be relatively close to each other, and the rubber can be scraped continuously in layers and widths to complete one movement scraping.

[0028] Another technical solution of the present invention is: a border strip glue scraping process, which adopts the above-mentioned glue scraping equipment and includes the following steps:

[0029] S1, Positioning and Shaping

[0030] Place the frame strip upward from the docking groove and against the positioning fence on the positioning platform from the side, and adjust the pressing assembly to press down section by section along the length direction of the positioning fence to level the frame strip;

[0031] S2, Obstacle Clearance and Graded Shoveling

[0032] Based on the forward movement of the tool holder, the obstacle clearing module fits in front of the upper edge of the docking groove and pushes forward, and regards the glass protruding from the docking groove as an obstacle and pushes forward to clear it. At the same time, the multi-stage tool head that moves synchronously with it performs graded cutting, and the multi-stage scraping gradually maintains external support from the middle to both sides to assist the obstacle clearing module in flattening and shaping the frame strip. The cut waste chips enter the chip discharge groove and move forward synchronously until the multi-stage tool head is completely moved out of the docking groove to push the corresponding waste chips out from the front end of the frame strip.

[0033] Preferably, in S1, multiple pressing assemblies are pressed down in sequence along the scraping direction. Based on the gradual downward pressing and consistent with the cutting direction, not only is the relative leveling and shaping achieved, but also the probability of displacement of the frame strip during the scraping process is low, which is more conducive to scraping.

[0034] In addition, the process of scraping glue on the border strip also includes: S3, back-shoveling, the blade head retreats from the front end of the border strip, and then the back-shoveling blade head moves in the opposite direction to perform back-shoveling. Based on the implementation of back-shoveling, the residual glue layer or waste chips that may be left in the docking groove are scraped back and removed, further improving the scraping quality.

[0035] In some specific implementations, once the recycled frame strips are relatively long, they can be cut first and then put into the glue scraping equipment for the glue scraping operation.

[0036] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0037] In the existing scraping of the rubber layer of the border strip, the front-stage scrapers used are basically pointed forward, and there is a smooth transition from the bottom of the sharp angle to the back. Therefore, the scraping force generated by the front-stage scrapers is upward and forward, which greatly increases the tendency of the scraper to tilt, resulting in changes in the thickness scraping amount, affecting the quality of the rubber strip removal (causing residue in the bottom layer of the rubber strip); at the same time, since the formed cutting amount is only layered in the thickness direction, and the change in the width direction only considers chip removal, there is no inherent correlation between the thickness cutting amount and the width cutting amount, which in turn affects the cutting efficiency and service life of the tool, and also increases the probability of scraping the border strip due to the deformation of the border strip, etc. The present application comprehensively designs the border strip scraping equipment and process for component recycling, ingeniously solves the shortcomings and defects of the prior art, and after using the border strip scraping equipment, first, the border strip is facing upward from the docking groove and against the positioning grid of the positioning platform from the side, and at the same time, along the length direction of the positioning grid, the clamping assembly is adjusted to press down and press in sections to level the border strip; then based on the tool holder The obstacle clearing module moves forward, and the upper edge of the docking groove is attached to the front and pushed forward. The glass protruding from the docking groove is regarded as an obstacle and is pushed forward to be cleared. At the same time, the multi-stage cutter head moving synchronously therewith performs graded cutting, and the multi-stage scraping gradually maintains external support from the middle to both sides to assist the obstacle clearing module in flattening and shaping the frame strip. The cut waste enters the chip discharge groove and moves forward synchronously until the multi-stage cutter head is completely moved out of the docking groove to push the corresponding waste from the front end of the frame strip to complete the scraping of the frame strip glue layer. Therefore, on the one hand, the present invention is based on segmentation and The method of gradually widening the cutting amount is to flatten and press the border strips for gradual scraping of glue, and based on the groove depth of the docking groove, the cutting amount formed by the upper and lower layered and graded cutter heads matches the groove depth. At the same time, there is a cross-cutting device at the front end of the cutting to remove obstacles that emerge from the docking groove, thereby reducing the probability of the tool cutting the border strips. On the other hand, the steps formed by the sharp and flat angles of the front-stage scraper can eliminate the tendency of the tool to tilt during cutting, thereby extending the service life of the tool while maintaining equal thickness cutting, thereby improving the scraping quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1It is a structural schematic diagram of the glue scraping device of Example 1;

[0039] Figure 2 for Figure 1 Schematic diagram of the local structure;

[0040] Figure 3 for Figure 2 A schematic diagram of the main view;

[0041] Figure 4 for Figure 2 Schematic diagram of the local structure;

[0042] Figure 5 for Figure 4 The structural diagram of the middle scraper group;

[0043] Figure 6 for Figure 5 A main view enlarged schematic diagram;

[0044] Figure 7 for Figure 5 Schematic diagram of the structure of the middle and rear handle tool;

[0045] Figure 8 for Figure 6 A schematic diagram showing the front end structure of the tool in the middle;

[0046] Fig. 9 It is a structural schematic diagram of the scraper assembly of Example 2;

[0047] Fig.10 for Fig. 9 A main view enlarged schematic diagram;

[0048] Wherein: 1. positioning unit; 10. positioning platform; 11. positioning fence; 12. clamping assembly; 120. clamping module; 121. power device;

[0049] 2. scraping unit; 20. scraping blade group; 200. blade holder; 201. tool; a. blade head; a1. sharp cutting part; a2. plane cutting part; a3. step; b. chip removal groove; c. back-shoveling blade head; d. back-shoveling groove; 21. obstacle removal group; 210. obstacle removal module; 22. power group; 220. ring transmission chain; 221. sprocket; 222. power motor;

[0050] k. Frame strip; h. Docking groove. DETAILED DESCRIPTION

[0051] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0052] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0056] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method. Example 1

[0057] like Figures 1 to 8 As shown, the scraping device involved in this embodiment includes a positioning unit 1 and a scraping unit 2. The positioning unit 1 includes a positioning platform 10, a positioning fence 11 positioned on the positioning platform 10, and a plurality of clamping components 12 distributed side by side along the length direction of the positioning fence 11; the scraping unit 2 includes a blade group 20, an obstacle removal group 21 and a power group 22.

[0058] Specifically, the positioning platform 10 is horizontally arranged, the positioning guard 11 is in a right-angle shape and is attached to the positioning platform 10 from the right-angle side, and each clamping component 12 includes a clamping module 120 and a power device 121 (cylinder, hydraulic cylinder or electric cylinder) for driving the clamping module 120 to move up and down, wherein the bottom of the clamping module 120 forms a horizontal pressing part, wherein the horizontal pressing part is pressed on the middle part of the frame strip, at this time, the positioned frame strip k is positioned upward from the docking groove h and pressed on the positioning platform 10, wherein the docking groove h, the clamping module 120, and the side of the guard are arranged in order (left and right direction) outside, middle, and inside, and the scraping unit 2 removes the glue layer and glass in the docking groove located on the outside together.

[0059] In some specific embodiments, the scraper group 20 includes a tool holder 200 and a tool 201 installed on the tool holder 200, wherein the tool 201 forms a multi-stage tool head a arranged from top to bottom and from front to back from the bottom, and the cutting amount formed by the multi-stage tool head a matches the groove depth of the docking groove, and a chip groove b is formed between the front and rear and upper and lower tool heads a.

[0060] In this example, the thickness to be cut formed by the bottom surface of the multi-stage cutter head a decreases step by step in an arithmetic progression from front to back, and the tolerance is d1; the scraping width formed by the multi-stage cutter head a in the thickness direction becomes wider step by step from front to back, wherein the step-by-step widening amount changes in an arithmetic progression, and the tolerance is d2, d1≤d2≤6d1, and each level of scraping gradually maintains external support from the middle to both sides to assist the obstacle removal module in flattening and shaping the frame strips, and a chip groove is formed between each two adjacent cutter heads, and the waste chips are located in the chip groove and move out of the front end of the docking groove synchronously with the cutter head.

[0061] The tool head a formed by the tool 201 is graded from front to back into the 1st, 2nd, 3rd…Nth levels, wherein the tool head of the 1st level forms a sharp-angle cutting portion a1 and a plane cutting portion a2, wherein the rear end of the sharp-angle cutting portion a1 is located above the front end of the plane cutting portion a2, and the height difference formed between the two ends is d1, that is, the height of the step a3 is d1. At the same time, the relationship between d1 and d2 is generally an even multiple relationship, that is, d2=2d1 or d2=4d1. The sharp angles of the tool heads corresponding to the 1st, 2nd, 3rd…Nth levels are ∠1, ∠2, ∠3…∠N, wherein ∠1 is the smallest, and 30°≤∠1≤60°. The smaller the angle, the easier it is to shovel in. The front end of ∠1 is rounded or straight-angled. A substantial choice is made based on the thickness of the adhesive layer, and the straight-angle transition adopted can adopt a bevel or a straight edge. The angles of ∠2, ∠3…∠N are equal. The height variation formed by the gradual descent is kept equal. The scraping is performed in the same angle and cutting mode. The cutting surfaces of the plane cutting parts formed by the 1st, 2nd, 3rd...Nth level of the cutter heads are arranged in parallel. The flat cutting directions formed are the same, which further avoids the tool tilting and insufficient cutting caused by cutting; at the same time, the cutting is performed in the equal amount layering mode, which reduces the cutting difficulty and prolongs the tool life cycle.

[0062] In this example, there are multiple tools 201 arranged side by side from front to back (in this example, two tools in front and back), each tool 201 can be mounted on the tool holder 200 so as to be adjustable up and down, and the tool head a formed by the two tools 201 from front to back is graded in sequence in the up and down direction, wherein the total cutting amount formed by the grading is equal to the groove depth of the docking groove. Here, the selection is made based on the groove depth, and generally two tools are used, so that the division is finer and it is easier to scrape.

[0063] The front cutter 201 is graded into the 1st, 2nd, 3rd, ... Nth grades, and the corresponding tip angles of the cutter head a of each grade are ∠1, ∠2, ∠3, ... ∠N, among which ∠1 is the smallest, and ∠1=50°, and ∠2, ∠3, and ∠4 are all 75°. The rear cutter 201 is graded into the 1st, 2nd, 3rd, ... Nth grades, and the corresponding tip angles of the cutter head a of each grade are ∠1, ∠2, ∠3, ... ∠N, among which ∠1 is the smallest, and ∠1=45°, and ∠2, ∠3, and ∠4 are all 60°, and the included angle formed by the backhoe cutter head c is 60° (180°-120°=60°). That is, ∠1 of the front tool 201 is greater than ∠1 of the rear tool 201, and ∠2 of the front tool 201 is greater than ∠2 of the rear tool 201 (∠3 of the front tool 201 is greater than ∠3 of the rear tool 201; ∠4 of the front tool 201 is greater than ∠4 of the rear tool 201). At the same time, the bottom surfaces of the 2nd, 3rd...Nth level tool heads a of each tool 201 are parallel, and the bottom surface of the tool head a gradually decreases from front to back. Furthermore, the height change formed by the gradual decrease remains equal. Shoveling is performed in the same angle and cutting mode. At the same time, a back-shovel cutter head c with a chip cutting direction facing backward is also provided at the rear end of the tool 201 located at the rear side. The bottom surface of the back-shovel cutter head c is flush with the bottom surface of the adjacent cutter head a, and a back-shovel groove d is correspondingly formed at the rear end of the back-shovel cutter head c. In this example, a back-shovel cutter head c opposite to the scraping direction is also provided at the rear end of the rear tool 201, wherein a partition groove area is formed between the back-shovel cutter head c and the last-stage cutter head, and the bottom surface of the back-shovel cutter head c is flush with the bottom surface of the last-stage cutter head. Excess waste chips can be collected based on the partition groove area, and the bottom surface of the back-shovel cutter head is flush with the bottom surface of the last-stage cutter head to facilitate back-shoveling. The back-shovel sharp angle formed by the back-shovel cutter head is ∠M, where ∠M=∠N=60°. It not only has high self-strength, but also facilitates one-time back-shoveling. A back-shovel groove d is formed at the rear end of the back-shovel cutter head c. Waste chips are collected based on the back-shovel groove to avoid interference with back-shoveling caused by waste chips. In some specific embodiments, the tip of the backhoe cutter head c is located inside the rear end face of the tool 201 (or the tip of the backhoe cutter head is flush with the rear end face of the tool), so as to avoid the tip of the backhoe cutter head being exposed and increasing the tool damage rate.

[0064] The obstacle clearing group 21 includes an obstacle clearing module 210 installed at the front end of the tool holder 200 and capable of fitting into the upper edge of the docking groove. In this example, the obstacle clearing module 210 can provide downward pressure and keep fitting into the upper edge of the docking groove under the horizontal push of the obstacle clearing module 210, thereby avoiding scraping obstacles caused by the glass. At the same time, multi-stage scraping gradually maintains external support from the middle to both sides to assist the obstacle clearing module 210 in flattening and shaping the frame strips. The waste chips are located in the chip discharge groove and are synchronously moved out of the front end of the docking groove with the tool head a.

[0065] The power group 22 includes an annular transmission chain 220, a sprocket 221, and a power motor 222, wherein the annular transmission chain 220 is connected to the knife holder 200. Under the transmission of the annular chain 220, the knife holder 200 completes the scraping of glue on a frame strip in a reciprocating motion along a direction parallel to the positioning grid 11.

[0066] The border strip glue scraping process of this embodiment uses the above-mentioned glue scraping equipment and includes the following steps:

[0067] S1, Positioning and Shaping

[0068] Place the frame strip upward from the docking groove and against the positioning fence from the side, and at the same time, adjust the pressing assembly to press down section by section along the length direction of the positioning fence to level the frame strip;

[0069] S2, Obstacle Clearance and Graded Shoveling

[0070] Based on the forward movement of the tool holder, the obstacle removal module is attached to the upper edge of the docking groove and pushed forward, and the glass protruding from the docking groove is regarded as an obstacle and pushed forward to be removed. At the same time, the multi-stage tool head moving synchronously therewith performs graded cutting, and the multi-stage scraping gradually maintains external support from the middle to both sides to assist the obstacle removal module in flattening and shaping the frame strip. The cut waste enters the chip discharge groove and moves forward synchronously until the multi-stage tool head is completely moved out of the docking groove to push the corresponding waste from the front end of the frame strip.

[0071] S3, back shovel

[0072] The cutter head retreats from the front end of the frame strip, and then the back-shoveling cutter head moves in the opposite direction to perform back-shoveling. Based on the implementation of back-shoveling, any residual glue layer or waste chips in the docking groove are removed by back-shoveling, further improving the scraping quality.

[0073] In S1, multiple clamping components are pressed down in sequence along the scraping direction. Based on the gradual downward pressing and consistent with the cutting direction, not only is the relative leveling and shaping performed, but also the probability of displacement of the frame strip during the scraping process is low, which is more conducive to scraping. Example 2

[0074] Combination Fig. 9 and Fig.10 As shown, the structure of this embodiment is basically the same as that of the embodiment 1, except that only one cutter 201 is provided in this embodiment, but the structure of the cutter 201 is the same as that of the rear row cutters 201 of the embodiment 1.

[0075] In summary, the implementation process of this embodiment is as follows:

[0076] S1, Positioning and Shaping

[0077] Place the frame strip upward from the docking groove and against the positioning fence from the side, and at the same time, adjust the pressing assembly to press down section by section along the length direction of the positioning fence to level the frame strip;

[0078] S2, Obstacle Clearance and Graded Shoveling

[0079] Based on the forward movement of the tool holder, the obstacle removal module is attached to the upper edge of the docking groove and pushed forward, and the glass emerging from the docking groove is regarded as an obstacle and pushed forward to be cleared. At the same time, the multi-stage tool head moving synchronously with it performs graded cutting, and the cut waste chips enter the chip discharge groove and move forward synchronously until the multi-stage tool head is completely moved out of the docking groove to push the corresponding waste chips out from the front end of the frame strip;

[0080] S3, back shovel

[0081] The cutter head retreats from the front end of the frame strip, and then the backhoe cutter head moves in the reverse direction to implement backhoeing.

[0082] In S1, multiple clamping components are pressed down in sequence along the scraping direction. Based on the gradual downward pressing and consistent with the cutting direction, it is not only relatively leveled and shaped, but also the probability of displacement of the frame strip during the scraping process is low, which is more conducive to scraping. Once the recycled frame strip is long, it can be cut first and then put into the scraping device for scraping.

[0083] In summary, after using the frame strip glue scraping equipment, first, the frame strip is moved upward from the docking groove and against the positioning grid from the side, and at the same time, along the length direction of the positioning grid, the clamping assembly is adjusted downward in sequence to press the sections together to level the frame strip; then, based on the forward movement of the tool holder, the obstacle removal module fits the upper edge of the docking groove in front and pushes forward, and the glass that emerges from the docking groove is regarded as an obstacle and is pushed forward to be cleared, and at the same time, the multi-stage cutter head that moves synchronously therewith performs graded cutting, and the multi-stage scraping gradually maintains external support from the middle to both sides to assist the obstacle removal module in flattening and shaping the frame strip, and the cut waste chips enter the chip discharge groove and move forward synchronously until the multi-stage cutter heads are all moved out of the docking groove to push the corresponding waste chips out from the front end of the frame strip to complete the frame The strip rubber layer is removed. Therefore, on the one hand, the present invention is based on the segmented and gradually widened cutting amount method to flatten and flatten the frame strips for gradual scraping of the glue, and based on the groove depth of the docking groove, the cutting amount formed by the upper and lower layered and graded cutter heads is matched with the groove depth, and at the same time, a device is provided at the front end of the cutting to remove the obstacles that emerge from the docking groove, thereby reducing the probability of the tool cutting the frame strips; on the other hand, the side is abutted against the fence to form a positioning, and the clamping assembly is adjusted in sequence to press down and press in sections to level the frame strips, thereby reducing excessive or insufficient scraping due to deformation, providing sufficient auxiliary conditions for scraping, low difficulty in scraping, long tool life, and greatly improved scraping quality and efficiency; on the third aspect, the grades formed by the tool are 1st, 2nd, 3rd...N grades, The tip angles of the tool heads corresponding to each level are ∠1, ∠2, ∠3…∠N, among which ∠1 is the smallest, and 30°≤∠1≤60°. The smaller the angle, the easier it is to shovel in. At the same time, the angles of ∠2, ∠3…∠N are equal, and the height changes formed by the gradual decrease remain equal. Shoveling is carried out under the same angle and cutting mode. In addition, the bottom surfaces of the tool heads of the 2nd, 3rd…Nth levels are parallel, and the bottom surfaces of the tool heads of each level are arranged from top to bottom in an arithmetic progression from front to back. In this way, cutting is carried out under an equal amount of layered mode, which reduces the cutting difficulty and extends the tool life cycle. Fourthly, based on the partition area, excess waste chips can be collected. As for the bottom surface of the back-shoveling tool head, it is flush with the bottom surface of the last-stage tool head to facilitate back-shoveling. At the same time, the back-shoveling tip angle formed by the back-shoveling tool head is ∠M. Among them, ∠M=∠N, which not only has high strength itself, but also is convenient for implementing a backshovel. In addition, a backshovel groove is formed at the rear end of the backshovel cutter head, and waste chips are collected based on the backshovel groove to avoid interference of the backshovel caused by the waste chips. At the same time, the tip of the backshovel cutter head is located on the inner side of the rear end face of the tool or the tip of the backshovel cutter head is flush with the rear end face of the tool to avoid the tip of the backshovel cutter head being exposed and increasing the damage rate of the tool; fifthly, the tool can be installed on the tool holder by adjusting up and down, based on the up and down adjustment to meet the removal of the glue layer of the docking grooves with different depths; sixthly, the selection is based on the groove depth. Generally, two tools (or more tools) are used, which is more finely divided and easier to scrape; at the same time, component cutting is performed based on gradually widening the cutting to maintain equal tolerances.

[0084] The above detailed description of the present invention is intended to enable persons familiar with the art to understand the contents of the present invention and implement them. It does not limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic module frame strip layering and gradually widening type glue scraping equipment, which includes a positioning unit and a scraping unit, wherein the scraping unit includes a scraping blade group, an obstacle removal group and a power group, the scraping blade group includes a blade holder and a tool, the tool forms a multi-stage blade head arranged from top to bottom and from front to back from the bottom, the obstacle removal group includes an obstacle removal module installed at the front end of the blade holder and capable of fitting the upper edge of the docking groove, characterized in that: The positioning unit includes a positioning platform, a positioning fence positioned on the positioning platform, and a plurality of groups of pressing components arranged side by side along the length direction of the positioning fence; The thickness to be cut formed by the bottom surface of the multi-stage cutter head from front to back decreases step by step in an arithmetic progression, and the tolerance is d1; the scraping width formed by the multi-stage cutter head from front to back in the thickness direction widens step by step, wherein the step-by-step widening amount changes in an arithmetic progression, and the tolerance is d2, d1≤d2≤6d1, each level of scraping gradually maintains external support from the middle to both sides to assist the obstacle removal module in flattening and shaping the frame strip, and a chip groove is formed between each two adjacent levels of the cutter heads, and the waste chips are located in the chip groove and are synchronously moved out of the front end of the docking groove with the cutter head; The cutter head formed by the tool is graded into 1st, 2nd, 3rd...N levels from front to back, wherein the cutter head of level 1 forms a sharp-angle cutting portion and a flat cutting portion, wherein the rear end of the sharp-angle cutting portion is located above the front end of the flat cutting portion, and the height difference formed between the two ends is d1.

2. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 1 is characterized in that: d2=2d1.

3. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 1 is characterized in that: The tip angles of the tool heads corresponding to the 1st, 2nd, 3rd ... Nth levels are ∠1, ∠2, ∠3 ... ∠N, among which ∠1 is the smallest, and 30°≤∠1≤60°.

4. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 3 is characterized by: The front end of ∠1 has a rounded or straight angle transition.

5. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 3 is characterized in that: The angles ∠2, ∠3…∠N are equal.

6. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 3, characterized in that: The cutting surfaces of the planar cutting portions formed by the cutter heads of the 1st, 2nd, 3rd ... Nth levels are arranged in parallel.

7. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 1, characterized in that: The rear end of the tool is also provided with a back-shoveling cutter head in the opposite direction to the scraping direction, wherein a partition area is formed between the back-shoveling cutter head and the last-stage cutter head, and the bottom surface of the back-shoveling cutter head is flush with the bottom surface of the last-stage cutter head.

8. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 7, characterized in that: The backhoe tip angle formed by the backhoe cutter head is ∠M, wherein ∠M=∠N.

9. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 7, characterized in that: A backhoe groove is formed at the rear end of the backhoe cutter head; and / or the tip of the backhoe cutter head is located inside the rear end face of the tool or the tip of the backhoe cutter head is flush with the rear end face of the tool.

10. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 1, characterized in that: The tool can be mounted on the tool holder in a manner that it can be adjusted up and down.

11. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 1, characterized in that: A plurality of groups of the clamping components are distributed at equal intervals along the length direction of the frame strip, and the clamping components are adjusted downward in sequence to press the frame strip section by section to level the frame strip.

12. The photovoltaic module frame strip layering and gradual widening type glue scraping device according to any one of claims 1 to 11, characterized in that: The plurality of tools are arranged on the tool holder in sequence from front to back, wherein the tool heads of the plurality of tools are arranged in sequence from top to bottom and from front to back, and the sum of the cutting amounts formed by the plurality of tools in the thickness direction is equal to the groove depth of the docking groove; the width direction of the plurality of tools is aligned with their own half-section as a reference, and the scraping width formed from front to back becomes wider step by step, wherein the width of the plurality of tools themselves becomes wider step by step from front to back in an arithmetic progression.

13. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 12, characterized in that: The tool heads of each of the tools are divided into 1st, 2nd, 3rd ... Nth levels from front to back, wherein the tool head tip angles of the 1st level formed by the tools arranged from front to back become smaller step by step.

14. The photovoltaic module frame strip layering and gradual widening type glue scraping equipment according to claim 12, characterized in that: A back-shoveling cutter head in the opposite direction to the cutting direction is formed on the cutter located at the rear end among the multiple cutters arranged from front to back.

15. A process for scraping glue from a frame strip, characterized in that: The method adopts the photovoltaic module frame strip layering and gradually widening type glue scraping device as described in any one of claims 1 to 14, and comprises the following steps: S1. Positioning and shaping Place the frame strip upward from the docking groove and against the positioning fence on the positioning platform from the side, and adjust the pressing assembly to press down section by section along the length direction of the positioning fence to level the frame strip; S2, Obstacle Clearance and Graded Shoveling Based on the forward movement of the tool holder, the obstacle clearing module fits in front of the upper edge of the docking groove and pushes forward, and regards the glass protruding from the docking groove as an obstacle and pushes forward to clear it. At the same time, the multi-stage tool head that moves synchronously with it performs graded cutting, and the multi-stage scraping gradually maintains external support from the middle to both sides to assist the obstacle clearing module in flattening and shaping the frame strip. The cut waste chips enter the chip discharge groove and move forward synchronously until the multi-stage tool head is completely moved out of the docking groove to push the corresponding waste chips out from the front end of the frame strip.

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