Glass removal device for photovoltaic modules

Abstract

The present invention relates to a glass removal device for photovoltaic modules, which comprises a frame with a feed port and a discharge port, a transmission unit and a cutting unit. On the one hand, the present invention removes the glass layer by successively performing grooving cutting, horizontal pushing cutting and residual peeling to maintain the flat feed of photovoltaic modules and the flat discharge of battery cells under the same reference; on the other hand, based on the contact area formed by the annular transmission pressure belt, the pressure and power provided by it and the power generated by the exploitation constitute the power output, thereby avoiding the occurrence of material jamming or blocking, and at the same time, based on the equal amount of cutting, reducing the damage rate caused by the cutting of battery cells.

Description

Technical Field

[0001] The invention belongs to the technical field of photovoltaic module recycling, and in particular relates to a glass removing device for a photovoltaic module. Background Art

[0002] Photovoltaic modules are mainly divided into single-glass modules and double-glass modules. Regardless of the product, the glass panel layer needs to be removed during the recycling process. The conventional methods are: preheating, crushing, and peeling. The peeling methods include shoveling, cutting, etc.

[0003] However, the above photovoltaic modules have the following defects during the glass panel removal process:

[0004] 1) Preheating, crushing and stripping all require corresponding workstations and processing mechanisms, which will result in a long length for removing the glass panel layer, that is, there is a limitation on the use of space, which is more disadvantageous especially for mobile on-site recycling operations;

[0005] 2) Many photovoltaic modules will inevitably deform during the recycling process (especially for modules after the frame is removed, once the glass is damaged), and the deformation will affect the subsequent peeling (especially quantitative cutting), causing damage to the battery cells; similarly, the battery cells will also be deformed or damaged during the crushing process;

[0006] 3) Most transmissions are carried out by transmission rollers running in opposite directions. Not only do they have defects such as small contact area and insufficient power, but also the combination of rigid rollers and flexible sleeves has a very short service life (because the ground glass will cause damage to the flexible sleeve); at the same time, the formed battery cells are generally output in a tilted manner, that is, the battery cells are arched. When stacking and palletizing, they are first flattened and then stacked. This not only lengthens the length of the production line, but also requires matching corresponding shaping mechanisms, that is, the transmission (or handling) of the components, which is not conducive to the stacking and collection of multiple battery cells. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a new glass removal device for photovoltaic modules.

[0008] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0009] A glass removal device for photovoltaic modules, comprising a frame with a feed inlet and a discharge outlet, a transmission unit and a cutting unit, in particular, the transmission unit comprises a frame plate extending horizontally from the feed inlet to the discharge outlet, and an annular conveyor belt mounted above the frame plate and capable of being raised and lowered, wherein a flattening channel is formed between the frame plate and the annular conveyor belt, the photovoltaic module enters the flattening channel from the glass downward, and the annular conveyor belt provides downward pressure and forward transmission force;

[0010] The cutting unit is located at the exit of the flattening channel, and includes a plurality of cutting tools protruding from the top of the frame plate and arranged with the axis line vertically, a power assembly for driving the plurality of cutting tools to rotate in the same direction and / or in the opposite direction, and a stripping roller arranged at the discharge port of the frame plate and below the annular conveyor belt, wherein each cutting tool forms a cutting surface from the circumferential direction, and forms a cutting area on the width of the corresponding flattening channel; the protruding length of each cutting tool is equal to the thickness of the glass layer to be removed; the plurality of cutting tools are arranged side by side and staggered in the length direction of the flattening channel, and at the same time, the cutting areas are complementary and / or overlapped to cover the width of the photovoltaic module entering the flattening channel; the stripping roller and the annular conveyor belt move towards each other, and a stripping column is formed on the circumference of the stripping roller, wherein the stripping column moves to contact the cut glass and the residual glass is stripped off the cell and the cell is kept in contact with the annular conveyor belt for output.

[0011] Preferably, the number of cutting tools formed by the multiple rows of cutting tools increases row by row from the inlet to the outlet, that is, the glass layer is removed in a high-speed and efficient manner by adopting the method of slotting cutting in the front row and horizontal pushing cutting in the rear row.

[0012] In some specific embodiments, the cutting areas formed by the cutting tools are of different sizes, and the cutting areas formed from the inlet to the outlet are arranged from small to large. Based on the cutting tools with different outer diameters, the smaller the cutting tools, the easier it is to form an open-circuit cutting. As for the arrangement of the cutting tools from small to large, the difficulty of removing the glass layer will be greatly reduced, and the differentiated area cutting can be fully and sequentially cut to achieve the rear row of horizontal cutting.

[0013] According to a specific implementation and preferred aspect of the present invention, the cutting areas formed by the cutting tools in each row are equal, that is, each row of cutting tools forms equal cutting to avoid cutting interference between cutting tools in the same row; at the same time, each row of cutting tools is symmetrically arranged about the center line of the flattening channel, and some cutting tools are located on the center line of the flattening channel. Therefore, the layout of the tools is completely based on the center line layout of the flattening channel, and in order to improve the cutting quality, a centering guide joint is also provided at the feed port.

[0014] Preferably, each cutting tool includes a tool holder, a tool head having a cutting surface and being detachable from the tool holder, the tool holder includes a cone portion whose outer diameter gradually decreases from top to bottom, and an external connection portion extending vertically downward from the bottom surface of the cone portion, wherein the external connection portion rotates relative to the bearing and the bearing holder through a bearing, and the tool head is a grinding disc or a saw disc. Here, based on the strength formed by the cone portion, it is not only convenient to disassemble and replace the tool head, but also improves the cutting performance and service life of the tool. At the same time, the tool head used is a grinding disc or a saw disc, that is, the glass is cut and removed by grinding or sawing.

[0015] In some specific embodiments, the power assembly includes a transmission wheel installed on each external part, a motor, and a transmission belt for connecting the motor and the transmission wheel, wherein there is at least one motor, and the plurality of transmission wheels are connected to the corresponding motors through the transmission belts. In short, the corresponding tool can be rotated and cut by rotating the plurality of transmission wheels in the same or opposite directions.

[0016] According to another specific implementation and preferred aspect of the present invention, the stripping column is columnar and extends along the radial direction of the stripping roller, wherein a plurality of stripping columns are divided into a plurality of groups along the axial direction of the stripping roller, and each group of stripping columns is spaced around the circumference of the stripping roller. That is, the use of a stripping roller similar to a hob can not only further cooperate with the stripping of residual glass, but also cooperate with the annular transmission pressure belt to form traction, thereby reducing the probability of stuck or blocked glass removal, and at the same time, further improving the flatness of the battery cell discharge.

[0017] Preferably, each group of stripping columns is aligned in the axial direction of the stripping roller. As the stripping roller rotates, the stripping force generated is kept in the same direction, which is more conducive to forward transmission of the battery sheet.

[0018] In some specific embodiments, the stripping rollers are adjustably mounted on corresponding brackets from their shaft ends through elastic connectors. The distance between the stripping rollers and the annular conveyor belt is adjusted according to actual needs to avoid damage to the battery cells.

[0019] According to another specific implementation and preferred aspect of the present invention, the transmission unit also includes a lifting mechanism for driving the circular conveyor belt to move up and down, wherein the lifting mechanism includes a truss formed from both sides of the circular conveyor belt and located above the circular conveyor belt, a fixed seat installed on the frame, and a power device for driving the truss to move up and down relative to the fixed seat, wherein the power device is a telescopic rod or a power screw or a gear rack or a sprocket chain for linear motion. Here, the main purposes of setting the lifting mechanism are: 1. Adjusting the pressure and friction power formed by the circular conveyor belt to meet the cutting power requirements; 2. Facilitating the maintenance and maintenance of the stripping roller and the cutting tool.

[0020] In addition, the glass removal device also includes a broken glass collection unit connected to the frame plate, and the broken glass collection unit includes a collection hopper arranged from top to bottom and a broken glass conveyor belt located below the collection hopper, wherein the side wall of the collection hopper is inclined from top to bottom, and the cut broken glass slides down to the broken glass conveyor belt based on the side wall guide. Under the push of the photovoltaic module, the broken glass falls into the collection hopper from the gap formed by the cutter, the stripping roller and the fence (similar to the collection of sawdust by sawing), and then the collection hopper collects and unloads the broken glass to the broken glass conveyor belt below, and finally the broken glass is transmitted out through the broken glass conveyor belt.

[0021] Due to the implementation of the above technical solution, the present invention has the following advantages compared with the prior art:

[0022] In the process of removing the glass panel of the existing photovoltaic modules, the preheating, crushing and peeling all require corresponding workstations and processing mechanisms. Therefore, the length of the glass panel layer removal will be long, that is, there is a limitation on the use of space, which is more disadvantageous especially for mobile on-site recycling operations. At the same time, many photovoltaic modules will inevitably deform during the recycling process (especially for modules after the frame is removed, once the glass is damaged), and the deformation will affect the subsequent peeling (especially for quantitative cutting), causing damage to the battery cell. Similarly, the crushing process will also cause deformation or damage to the battery cell. Most of the transmission is carried out by transmission rollers running in opposite directions, which not only has the defects of small contact area and insufficient power, but also has a very short service life due to the combination of rigid rollers and flexible sleeves (because the ground glass will cause damage to the flexible sleeve); at the same time, the formed cells are generally output in a tilted manner, that is, the cells are arched, and when stacking, they are first flattened and then stacked, which not only lengthens the length of the production line, but also requires matching corresponding shaping mechanisms, that is, the transmission (or handling) of the components, which is not conducive to the stacking and collection of multiple cells, etc. The present invention cleverly solves various deficiencies of the existing structure by overall designing the glass removal device of the photovoltaic module. After adopting the glass removal device, first, the photovoltaic module is flattened based on the flattening channel formed by the annular transmission pressure belt and the frame plate, keeping the glass layer in contact with the frame plate, and the annular transmission pressure belt provides power for forward transmission; then, the tools arranged side by side and with complementary and overlapping cutting areas rotate to perform grooving cutting and horizontal pushing cutting respectively, and then based on the residual peeling and transmission formed by the peeling roller, the battery cell with the glass removed is output from the discharge port while keeping it in contact with the annular penetration belt. Therefore, on the one hand, the present invention maintains the smooth feeding of the photovoltaic module and the smooth discharging of the battery cell under the same benchmark, and successively performs grooving cutting, horizontal pushing cutting, and residual peeling to remove the glass layer; on the other hand, based on the contact area formed by the annular transmission pressure belt, the pressure and power provided by it, as well as the power generated by exploitation constitute the power output, thereby avoiding material jamming or blocking, and at the same time, based on equal cutting, reducing the damage rate caused by battery cell cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of a glass removal device for a photovoltaic module of this embodiment;

[0024] Figure 2 for Figure 1 Another perspective structural diagram of;

[0025] Figure 3 for Figure 1Schematic diagram of local structure;

[0026] Figure 4 for Figure 3 A schematic diagram of the main view;

[0027] Figure 5 for Figure 3 A right side schematic diagram of

[0028] Figure 6 for Figure 3 Schematic diagram of structural decomposition;

[0029] Figure 7 for Figure 6 Schematic diagram of the local structure;

[0030] Figure 8 for Figure 7 A schematic diagram of the main view;

[0031] Fig. 9 for Figure 8 AA section view (enlarged);

[0032] Fig.10 for Figure 7 A top view schematic diagram of

[0033] Fig.11 for Fig.10 Schematic diagram from above (partially enlarged);

[0034] Wherein: 1, frame; 1a, feed inlet; 1b, discharge outlet;

[0035] 2. Transmission unit; 20. Shelf; 21. Annular conveyor belt; 210. Power motor; 22. Lifting mechanism; 220. Truss; 221. Fixed seat; 222. Power device;

[0036] 3. Cutting unit; 30. Cutting tool; 300. Tool holder; a. Cone portion; b. External portion; 301. Tool head; 31. Power assembly; 310. Transmission wheel; 311. Motor; 312. Transmission belt; 32. Stripping roller; 320. Stripping column; 33. Elastic connector; 34. Stripping power device;

[0037] 4. Cullet collecting unit; 40. Guardrail; 41. Collecting hopper; 42. Cullet conveyor belt. DETAILED DESCRIPTION

[0038] 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.

[0039] 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.

[0040] 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.

[0041] 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.

[0042] In the 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 that 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.

[0043] 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.

[0044] like Figures 1 to 11 As shown, the glass removal device for photovoltaic modules of this embodiment includes a frame 1 having a material inlet 1a and a material outlet 1b, a transmission unit 2 and a cutting unit 3.

[0045] The transmission unit 2 includes a frame plate 20 extending horizontally from the feed port to the discharge port, an annular conveyor belt 21 installed above the frame plate 20 and capable of being raised and lowered, and a lifting mechanism 22 for driving the annular conveyor belt to move up and down, wherein a flattening channel is formed between the frame plate 20 and the annular conveyor belt 21, and the photovoltaic module enters the flattening channel from the glass downward and is provided with downward pressure and forward transmission force by the annular conveyor belt, and the lifting mechanism 22 includes a truss 220 formed on both sides of the annular conveyor belt 21 and located above the annular conveyor belt 21, a fixed seat 221 installed on the frame 1, and a power device 222 for driving the truss 220 to move up and down relative to the fixed seat 221, wherein the power device 222 is a telescopic rod or a power lead screw or a gear rack or a sprocket chain for linear motion. Here, the main purposes of setting the lifting mechanism are: 1. Adjusting the pressure and friction power formed by the annular conveyor belt to meet the cutting power requirements; 2. Facilitating the maintenance and maintenance of the stripping roller and the cutting tool. In this example, a gear and rack transmission method is adopted, and a slide rail guide method is used to achieve up and down lifting adjustment.

[0046] The cutting unit 3 is located at the exit of the flattening channel and includes a plurality of cutting tools 30 protruding from the top of the frame plate 20 and with the axis line vertically arranged, a power assembly 31 for driving the plurality of cutting tools 30 to rotate in the same direction and / or in the opposite direction, and a stripping roller 32 arranged at the discharge port of the frame plate 20 and below the annular conveyor belt 21, wherein each cutting tool 30 forms a cutting surface in the circumferential direction and forms a cutting area on the width of the corresponding flattening channel; the protruding length of each cutting tool 30 is equal to the thickness of the glass layer to be removed.

[0047] In some specific embodiments, a plurality of cutting tools 30 are arranged side by side and staggered in the length direction of the flattening channel, and the cutting areas are complementary and / or overlapped to cover the width of the photovoltaic module entering the flattening channel. In this example, the cutting tools 30 form two rows from the inlet to the outlet, two in the front row and three in the back row (a total of 5), that is, the number of cutting tools in the front row plus one is equal to the number of cutting tools in the back row, wherein the glass layer is removed in a high-speed and efficient mode by the front row slotting cutting and the back row horizontal push cutting. In this example, the cutting areas formed by the cutting tools 30 are of different sizes, the two cutting tools in the front row have a small outer diameter, the three cutting tools in the back row have a large outer diameter, and the cutting areas formed from the inlet to the outlet are arranged from small to large. Based on cutting tools with different outer diameters, the smaller the cutting tools, the easier it is to form open-circuit cutting. As for the arrangement of cutting tools from small to large, the difficulty of removing the glass layer will be greatly reduced, and the differentiated area cutting is carried out to achieve comprehensive and sequential cutting to achieve horizontal push cutting in the back row. Furthermore, the cutting areas formed by the cutting tools 30 in each row are equal, that is, each row of cutting tools 30 forms equal cutting to avoid cutting interference between the cutting tools 30 in the same row; at the same time, each row of cutting tools 30 is symmetrically arranged about the center line of the flattening channel, and some cutting tools 30 are located on the center line of the flattening channel. Therefore, the layout of the tools is completely based on the center line layout of the flattening channel, and in order to improve the cutting quality, a centering guide joint is also provided at the feed port.

[0048] In some specific embodiments, each cutting tool 30 includes a tool holder 300, a tool head 301 having a cutting surface and detachable from the tool holder 300, and the tool holder 300 includes a frustum portion a whose outer diameter gradually decreases from top to bottom, and an external portion b extending vertically downward from the bottom surface of the frustum portion a, wherein the external portion b rotates relative to the bearing and the bearing holder. Here, based on the strength formed by the frustum portion a, it is not only convenient to disassemble and replace the tool head 301, but also improves the cutting performance and service life of the tool. At the same time, the tool head 301 used is a grinding disc or a saw disc, that is, the glass is cut and removed by grinding or sawing.

[0049] In some specific embodiments, the power assembly 31 includes a transmission wheel 310 installed on each external portion b, a motor 311, and a transmission belt 312 for transmission connection between the motor 311 and the transmission wheel 310, wherein there is at least one motor 311, and multiple transmission wheels 310 are respectively transmission connected to the corresponding motor 311 through the transmission belt 312. In short, the rotation cutting of the corresponding tool is achieved by the same or opposite rotation of the multiple transmission wheels 310. In this example, the five transmission wheels 310 in the two rows (corresponding to the five cutting tools 30) are driven by two motors 311, one of the motors 311 transmits and connects a front-row transmission wheel 310 and two rear-row transmission wheels 310 via a transmission belt 312; the other motor 311 transmits and connects the remaining front and rear transmission wheels 310, and the transmission direction is the same direction in this example (one motor 311 can also drive the two front-row transmission wheels 310 to move in the same direction, and the other motor 311 can drive the three rear-row transmission wheels 310 to move in the same direction, and the front and rear rows rotate in opposite directions).

[0050] In some specific embodiments, the stripping roller 32 and the annular conveyor belt 21 move toward each other, and a stripping column 320 is formed on the circumference of the stripping roller 32, wherein the stripping column 320 moves to contact the cell after cutting the glass to strip the residual glass and keep the cell attached to the annular conveyor belt 21 for output. Further, the stripping column 320 is columnar and extends along the radial direction of the stripping roller 32, wherein a plurality of stripping columns 320 are divided into a plurality of groups along the axial direction of the stripping roller 32, and each group of stripping columns 320 is distributed around the circumference of the stripping roller 32 at intervals. That is, the use of a stripping roller similar to a hob shape can not only further cooperate with the stripping of the residual glass, but also cooperate with the annular transmission belt to form traction, reduce the probability of stuck or blocked glass removal, and further improve the flatness of the cell output. Each group of stripping columns 320 is aligned in the axial direction of the stripping roller 32. The stripping force formed by the rotation of the stripping roller 32 remains in the same direction, which is more conducive to the forward transmission of the cell. In addition, the stripping roller 32 is adjustable from the axial end to the corresponding frame through the elastic connector 33. The distance between the stripping roller and the annular transmission belt is adjusted according to actual needs to avoid damage to the battery cell. At the same time, the stripping roller 32 is driven by the stripping power device 34 (pulley and motor) to rotate, and the rotation direction is opposite to the annular transmission belt 21.

[0051] The power motor 210 of the ring-shaped transmission belt 21 is also installed on the truss 220, so that the components located above the frame plate 20 (ring-shaped transmission belt, lifting mechanism, power motor, etc.) can increase the positive pressure, thereby greatly reducing the probability of component deviation during cutting.

[0052] In addition, the glass removal device also includes a broken glass collection unit 4 connected to the frame 20, and the broken glass collection unit 4 includes a guardrail 40 that relatively closes or covers the end of the flattening channel and the end of the stripping roller 32, a collecting hopper 41 that gradually narrows from the bottom of the guardrail 40 from top to bottom, and a broken glass conveyor belt 42 located below the collecting hopper 41, wherein the side wall of the collecting hopper 41 is inclined from top to bottom, and the cut broken glass slides down to the broken glass conveyor belt 42 based on the guidance of the side wall. Under the push of the photovoltaic module, the broken glass falls into the collecting hopper 41 from the gap formed by the cutting tool 30, the stripping roller 32 and the guardrail 40 (similar to the collection of sawdust by sawing), and then the collecting hopper 41 collects and unloads the broken glass to the broken glass conveyor belt 42 below, and finally the broken glass is conveyed out through the broken glass conveyor belt 42.

[0053] In some specific embodiments, the feed port and the discharge port are aligned, and the transmission direction of the broken glass conveyor belt 42 is perpendicular to the feed and discharge direction, so as to optimize the overall shape and reduce its own volume with a reasonable spatial layout.

[0054] In summary, the implementation process of this embodiment is as follows:

[0055] S1. Supply of photovoltaic modules

[0056] The photovoltaic module is sent into the flattening channel from the glass downwards, and the photovoltaic module is flattened by the annular transmission pressing belt and the frame plate to keep the glass layer attached to the frame plate, and the annular transmission pressing belt provides power to transmit forward to shape and feed the photovoltaic module;

[0057] S2, cutting and rolling peeling

[0058] The photovoltaic modules pushed forward are cut by the self-rotating cutting tool with the same thickness as the glass, in which slotting cutting and horizontal pushing cutting are performed respectively, and then the residual stripping and transfer formed by the stripping roller are maintained, and the cells are discharged from the discharge port by the annular transmission pressure belt.

[0059] S3, battery cell and broken glass collection

[0060] The discharged battery cells can be stacked and collected. At the same time, the broken glass used for cutting and roller peeling is gathered through the collection hopper and guided to the broken glass conveyor belt below, and then the broken glass conveyor belt transmits and collects the broken glass.

[0061] Therefore, this embodiment has advantages in at least the following aspects:

[0062] 1) Under the same datum, the flat feeding of photovoltaic modules and the flat discharging of solar cells are maintained, and the glass layer is removed by grooving, horizontal pushing and residual peeling in sequence;

[0063] 2) Based on the contact area formed by the annular transmission pressure belt (in this case, the annular transmission pressure belt is a rubber belt, and the pressure generated is sufficient to avoid left and right displacement during cutting, and the pressure generated exceeds 400N), the pressure and power provided by it, as well as the power generated by exploitation, constitute the power output to avoid material jamming or blocking, and at the same time, based on equal cutting, reduce the damage rate caused by cell cutting;

[0064] 3) The glass layer is removed in a high-speed and efficient manner by using front-row slotting and rear-row push cutting methods;

[0065] 4) Based on cutting tools with different outer diameters, the smaller the cutting tools, the easier it is to form open-circuit cutting. As for the arrangement of cutting tools from small to large, the difficulty of removing the glass layer will be greatly reduced, and the regional cutting will be differentiated to achieve comprehensive and sequential cutting to achieve rear-row cross-cutting; at the same time, each row of cutting tools is kept to form equal cutting to avoid cutting interference between cutting tools in the same row; at the same time, each row of cutting tools is symmetrically arranged about the center line of the flattening channel, and some cutting tools are located on the center line of the flattening channel. Therefore, the layout of the tools is completely based on the center line layout of the flattening channel, and in order to improve the cutting quality, a centering guide joint is also provided at the feed inlet;

[0066] 5) Based on the strength formed by the frustum, it is not only easy to disassemble and replace the cutter head, but also improves the cutting performance and service life of the tool; at the same time, through the same or reverse rotation of multiple transmission wheels, the corresponding tool can be rotated to cut;

[0067] 6) The use of a peeling roller similar to a hob can not only further cooperate with the peeling of residual glass, but also cooperate with the annular transmission pressure belt to form traction, reduce the probability of glass removal jamming or blocking, and further improve the flatness of the battery cell discharge. In addition, the peeling force formed by the rotation of the peeling roller remains in the same direction, which is more conducive to the forward transmission of the battery cell. At the same time, the distance between the peeling roller and the annular transmission pressure belt is adjusted according to actual needs to avoid damage to the battery cell;

[0068] 7) The main purpose of setting the lifting mechanism: 1. Adjust the pressure and friction power formed by the ring conveyor belt to meet the cutting power requirements; 2. Facilitate the maintenance and maintenance of the stripping roller and cutting tool;

[0069] 8) Under the push of the photovoltaic modules, the broken glass falls into the collection hopper from the gap formed by the cutter, the stripping roller and the fence (similar to the collection of sawdust during sawing), and then the collection hopper collects and unloads the broken glass to the broken glass conveyor belt below, and finally the broken glass is conveyed out through the broken glass conveyor belt;

[0070] 9) The glass removal device of this embodiment has a final stripping and removal rate of more than 95%, and also solves the problem of transporting and stacking photovoltaic modules and recycled solar cells. In addition, based on the overall layout of the shape, it not only solves the problem of space limitation, but also facilitates mobile site recycling;

[0071] 10) The subsequent peeling (especially quantitative cutting) will not be affected by the deformation of the component itself, which will cause damage to the battery cell; similarly, there is no need for pre-crushing, which further reduces the deformation or damage rate of the battery cell.

[0072] 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 glass removal device for a photovoltaic module, comprising a frame with a feed inlet and a discharge inlet, a transmission unit and a cutting unit, characterized in that: The transmission unit comprises a frame plate extending horizontally from the feed port to the discharge port, and an annular conveyor belt installed above the frame plate and capable of being raised and lowered, wherein a flattening channel is formed between the frame plate and the annular conveyor belt, and the photovoltaic module enters the flattening channel from the glass downward and is provided with downward pressure and forward transmission force by the annular conveyor belt; The cutting unit is located at the outlet of the flattening channel and comprises a plurality of cutting tools emerging from the top of the frame plate and arranged with the axis line vertically, a power assembly for driving the plurality of cutting tools to rotate in the same direction and / or in the opposite direction, and a stripping roller arranged at the outlet of the frame plate and below the annular conveyor belt, wherein each of the cutting tools forms a cutting surface in the circumferential direction and forms a cutting area on the width corresponding to the flattening channel; The protruding length of each cutting tool is equal to the thickness of the glass layer to be removed; multiple cutting tools are arranged side by side and staggered in the length direction of the flattening channel, and the cutting areas are complementary and / or overlapped to cover the wide width of the photovoltaic module entering the flattening channel; the stripping roller and the annular conveyor belt move towards each other, and a stripping column is formed in the circumference of the stripping roller, wherein the stripping column moves to contact the cell sheet after cutting the glass to strip the residual glass and keep the cell sheet attached to the annular conveyor belt for output; The number of cutting tools formed by the multiple rows of cutting tools increases row by row from the inlet to the outlet, and the cutting tools in each row are symmetrically arranged about the center line of the flattening channel, and some of the cutting tools are located on the center line of the flattening channel; The plurality of stripping columns are divided into a plurality of groups along the axial direction of the stripping roller, and the stripping columns in each group are spaced and distributed around the circumference of the stripping roller; the stripping roller is adjustably mounted on the corresponding frame through elastic connecting pieces from the axial ends; The glass removal device also includes a broken glass collection unit connected to the frame plate, the broken glass collection unit includes a guardrail that relatively closes or covers the end of the flattening channel and the end of the stripping roller, a collecting hopper that gradually narrows from the bottom of the guardrail from top to bottom, and a broken glass conveyor belt located below the collecting hopper, wherein the side wall of the collecting hopper is inclined from top to bottom, and the cut broken glass slides onto the broken glass conveyor belt based on the guidance of the side wall.

2. The glass removal device for photovoltaic modules according to claim 1, characterized in that: The cutting areas formed by the cutting tools vary in size.

3. The glass removal device for photovoltaic modules according to claim 2, characterized in that: The cutting areas formed by the cutting tool from the inlet to the outlet are arranged from small to large.

4. The glass removal device for photovoltaic modules according to claim 3, characterized in that: The cutting areas formed by the cutting tools in each row are equal.

5. The glass removal device for photovoltaic modules according to claim 1, 2, 3 or 4, characterized in that: Each of the cutting tools includes a tool seat, a tool head having the cutting surface and being detachable from the tool seat, the tool seat includes a frustum portion whose outer diameter gradually decreases from top to bottom, and an external connection portion extending vertically downward from the bottom surface of the frustum portion, wherein the external connection portion rotates relative to the bearing seat through a bearing.

6. The glass removal device for photovoltaic modules according to claim 5, characterized in that: The cutter head is a grinding disc or a saw disc.

7. The glass removal device for photovoltaic modules according to claim 5, characterized in that: The power assembly includes a transmission wheel installed on each of the external parts, a motor, and a transmission belt for connecting the motor and the transmission wheel to each other, wherein there is at least one motor, and multiple transmission wheels are connected to the corresponding motors through the transmission belts.

8. The glass removal device for photovoltaic modules according to claim 1, characterized in that: The stripping column is column-shaped and extends along the radial direction of the stripping roller.

9. The glass removal device for photovoltaic modules according to claim 8, characterized in that: Each group of the stripping columns is aligned in the axial direction of the stripping roller.

10. The glass removal device for photovoltaic modules according to claim 1, characterized in that: The transmission unit also includes a lifting mechanism for driving the endless conveyor belt to move up and down.

11. The glass removal device for photovoltaic modules according to claim 10, characterized in that: The lifting mechanism includes a truss formed from both sides of the circular conveyor belt and located above the circular conveyor belt, a fixed seat installed on the frame, and a power device that drives the truss to move up and down relative to the fixed seat, wherein the power device is a telescopic rod or a power screw or a gear rack or a sprocket chain that moves linearly.

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