Photovoltaic module end strip cutting and laying mechanism

Abstract

The utility model discloses a photovoltaic assembly end strip cutting and laying mechanism which comprises a rack and a conveying mechanism, the conveying mechanism penetrates through a set of opposite edges of the rack in the first direction, and the first direction is parallel to the short edges of a photovoltaic assembly; a feeding mechanism used for feeding end strips is arranged at the bottom in the machine frame, a shearing mechanism is further arranged on the portion, above the feeding mechanism, of the machine frame, and a material pulling mechanism used for stretching the material strips in the second direction perpendicular to the first direction in the horizontal plane is further arranged in the feeding direction of the material strips and behind the shearing mechanism. A temporary storage unit is further arranged below the material pulling mechanism, a carrying unit capable of moving in the first direction, the second direction and the third direction perpendicular to the first direction and the second direction is further arranged at the upper end of the machine frame, and the feeding mechanism adopts a multi-material-disc mechanism capable of rotating around the vertical axis parallel to the third direction for feeding. The bottom space in the rack is fully utilized, and the size of the whole equipment is not obviously increased; and a plurality of material coils can be fed at a time, so that the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component production equipment, in particular to a photovoltaic component end strip cutting and laying mechanism. Background Art

[0002] EVA (ethylene vinyl acetate) is a key structural material commonly used in solar photovoltaic modules. It is used between the back of the solar cell and the glass top cloth to fix, insulate and protect. EVA is widely used in various photovoltaic modules, including polycrystalline silicon solar cell modules, monocrystalline silicon solar cell modules and amorphous silicon solar cell modules. It can effectively protect the cell and circuit system, improve the conversion efficiency of light energy and the life of the module.

[0003] Before lamination, the photovoltaic cell group needs to lay the end strips and battery cells of the component glass first, and then lay the end strips and backplane again, and finally enter the laminator for lamination. At present, in the process of cutting and laying the end strips, it has gradually evolved from manual single-machine operation to fully automatic machine operation. For example, the prior art (CN117342328A, CN117712211B, CN117507053A) discloses relevant technical solutions for punching, cutting and laying of large EVA rolls. The equipment disclosed in the above patent documents adopts a horizontal unwinding mechanism for loading large EVA rolls. The unwinding mechanism in the above equipment needs to occupy the length direction of the frame, which makes the equipment large in size and occupies a large area. In order to solve the above technical problems, it is necessary to provide a new end strip cutting mechanism to solve the above problems. Utility Model Content

[0004] In view of at least one of the above-mentioned technical problems, the purpose of the utility model is to provide a photovoltaic module end strip cutting and laying mechanism, which adopts a multi-material tray loading mechanism for loading materials. The multi-material tray loading mechanism is arranged in the space below the equipment frame without significantly increasing the volume of the equipment.

[0005] The technical solution of the utility model is:

[0006] The utility model aims to provide a photovoltaic module end strip cutting and laying mechanism, comprising a frame and a conveying mechanism, wherein the conveying mechanism is used to convey the photovoltaic module into the frame for laying the end strips and convey the photovoltaic module out of the frame after the laying operation is completed and the conveying mechanism passes through a set of opposite sides of the frame along a first direction, wherein the first direction is parallel to the short side of the photovoltaic module; a feeding mechanism for feeding the end strips is provided at the bottom of the frame, and a shearing mechanism corresponding to the end strips for shearing the material strips into strips is also provided on the frame above the feeding mechanism, and the feeding direction of the material strip is provided along the feeding direction of the material strip. A pulling mechanism for stretching the material strip along a second direction perpendicular to the first direction in a horizontal plane is provided behind the shearing mechanism; a temporary storage unit for placing the cut material strips is provided below the pulling mechanism; a conveying unit that can move along the first direction, the second direction and a third direction perpendicular to the first and second directions to move the material strips and lay them on the photovoltaic module is provided at the upper end of the frame; the feeding mechanism uses a multi-material tray mechanism that can rotate around a vertical axis parallel to the third direction or a horizontal axis parallel to the first direction for feeding.

[0007] Preferably, the number of the feeding mechanisms is two and the two feeding mechanisms are arranged on the same side of the first direction and are relatively spaced apart or on both sides of the first direction and are diagonally arranged, a shearing mechanism is provided above each of the feeding mechanisms and a pulling mechanism is provided behind each of the shearing mechanisms, a temporary storage unit is provided below each of the pulling mechanisms, the number of the conveying unit is one and the conveying unit reciprocates above the two temporary storage units.

[0008] Preferably, the feeding mechanism comprises:

[0009] A material cart is provided with a fixed shaft, and at least two tensioning parts that can be radially expanded and contracted for fixing the material coil are provided on the fixed shaft along the axial direction thereof, and a tray is fixed at each end of any of the tensioning parts, and an expansion and contraction driving member for driving the tensioning part to expand and contract is fixed at one end of the fixed shaft;

[0010] At least one feeding drive member, which is arranged on the outer side of the tray and is in rotational contact with at least one of the trays to drive the tray to rotate and drive the material roll to release the material belt;

[0011] A first auxiliary wheel frame, which is arranged on the material cart and located outside the pallet, and is provided with a first auxiliary wheel with an axis along the third direction;

[0012] A second auxiliary wheel frame is arranged behind the first auxiliary wheel frame along the discharge direction of the material strip, and is provided with a second auxiliary wheel with an axis in a horizontal direction, and the material strip is wound around the first auxiliary wheel and the second auxiliary wheel in sequence and changes from a vertical state to a horizontal state;

[0013] A locking assembly includes a locking plate arranged at the bottom of one end of the trolley and a retractable and movable locking cylinder arranged on the frame or the ground. A locking hole is provided on the locking plate. The locking cylinder is provided with a locking rod connected to its piston or piston rod and can be extended or retracted toward the locking hole. After the trolley is pushed to a predetermined position, the locking rod can be extended and inserted into the locking hole to lock the trolley.

[0014] Preferably, a second slider is provided at the bottom of the trolley, and the second slider is slidably matched with a second linear guide rail fixed on the ground or on the bottom surface of the frame; and / or

[0015] The number of the feeding drive members is at least two, and at least two of the feeding drive members are arranged circumferentially and / or vertically on the outer side of the tray.

[0016] Preferably, the feeding drive member includes a feeding drive wheel rotatably arranged around an axis parallel to the third direction, a feeding drive motor driving the feeding drive wheel to rotate around its axis, and a displacement drive member driving the feeding drive wheel and the feeding drive motor as a whole to move closer to or away from the pallet along the radial direction of the pallet.

[0017] Preferably, the shearing mechanism comprises:

[0018] A first frame body, which is mounted on the frame and located above the feeding mechanism, and a material belt detection sensor for detecting the presence or absence of the material belt is also provided at the bottom of the first frame body;

[0019] a material belt guide assembly, which is disposed at the lower part of the first frame and includes at least two groups of guide members spaced apart along the third direction, the two groups of guide members defining a guide cavity for conveying the material belt from bottom to top along the third direction, and any group of guide members includes two guide blocks that are opposite and spaced apart along the first direction;

[0020] A guide wheel assembly is provided on the upper part of the first frame and comprises a driving guide wheel and a driven guide wheel which are arranged relatively and can move relatively along the third direction, wherein the driving guide wheel is fixed relative to the first frame in the third direction but can rotate around an axis parallel to the first direction, and the driven guide wheel can move closer to or away from the driving guide wheel relative to the first frame in the third direction and can rotate around an axis parallel to the first direction, and the material belt changes from a horizontal state to a horizontal state along the second direction after passing through the material belt guide assembly and the guide wheel assembly vertically;

[0021] A material pressing member, which is arranged behind the guide wheel assembly along the second direction and close to the material pulling mechanism, and comprises a material holding block fixed to the first frame and a material pressing cylinder which can move closer to or away from the material holding block along the third direction relative to the first frame;

[0022] The pneumatic scissors are arranged on the first frame in an openable and closable manner and are located between the material pressing member and the material pulling mechanism.

[0023] Preferably, a material tape docking device is also provided on the side of the first frame body and can move toward one side of the first frame body to dock and fuse the head end of the material tape of the newly replaced material roll with the tail end of the previous material tape.

[0024] Preferably, the material pulling mechanism comprises:

[0025] A clamping jaw member that can move along a third direction to clamp or release, a clamping jaw driving member used to drive the clamping jaw member to clamp or release, and a material pulling driving member used to drive the clamping jaw member to move along the second direction. The clamping jaw member, the clamping jaw driving member and the material pulling driving member are all arranged at the upper end of the frame.

[0026] Preferably, the temporary storage unit comprises:

[0027] a carrier plate, which is arranged on the frame and below the material pulling mechanism so as to extend along the second direction, and is provided with a plurality of grooves arranged at intervals along the second direction, any of the grooves extending along the first direction, and the material strips cut by the shearing mechanism are temporarily stored on the carrier plate;

[0028] A push rod, the bottom of any of the grooves is provided with a push rod which can move upward and along the extension direction of the groove from one end of the groove to the other end, and the push rod pushes the end of the groove temporarily stored on the carrier plate and covering the groove close to the outer side of the frame to the end close to the inner side of the frame;

[0029] The pushing drive member includes a lifting drive member whose driving end is connected to the pushing rod and drives the pushing rod to extend and retract vertically to lift the material strip, and a pushing drive member whose driving end is connected to the pushing frame for mounting the pushing rod and drives the pushing frame to drive the pushing rod to move horizontally along the first direction.

[0030] Preferably, the transport unit comprises a three-axis moving module and a suction cup disposed at the bottom of the three-axis moving module for grabbing and laying the material strips.

[0031] Compared with the prior art, the advantages of the utility model are:

[0032] The utility model provides a photovoltaic module end strip cutting and laying mechanism, which adopts a multi-material tray loading mechanism to load materials, and fully utilizes the bottom space in the frame. Unlike the prior art which adopts a large material roll loading mechanism wrapped around a horizontal axis, which requires occupying the side space of the frame and causes the entire device to be larger in size and occupy a large area, the size of the entire device of the cutting and laying machine of the utility model will not be significantly increased; moreover, multiple material rolls can be loaded at one time, thereby greatly improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0034] Figure 1 It is a schematic diagram of the front view structure of the photovoltaic module end strip cutting and laying mechanism (including the frame) according to the embodiment of the utility model;

[0035] Figure 2 It is a schematic structural diagram of a photovoltaic module end strip cutting and laying mechanism (the frame is omitted and the number of feeding mechanisms is two and they are arranged opposite to each other on the same side of the frame) of an embodiment of the utility model;

[0036] Figure 3 for Figure 2 A partial enlarged structural diagram of the middle part;

[0037] Figure 4 It is a structural schematic diagram of a feeding mechanism (with a material roll) of a photovoltaic module end strip cutting and laying mechanism according to an embodiment of the utility model at an angle;

[0038] Figure 5 It is a structural schematic diagram of another angle of the feeding mechanism (with a material roll) of the photovoltaic module end strip cutting and laying mechanism of the embodiment of the utility model;

[0039] Figure 6 This is a structural schematic diagram of another angle of the feeding mechanism (without a material roll) of the photovoltaic module end strip cutting and laying mechanism of the embodiment of the utility model;

[0040] Figure 7It is a schematic structural diagram of a fixed axis of a feeding mechanism of a photovoltaic module end strip cutting and laying mechanism according to an embodiment of the utility model;

[0041] Figure 8 It is a structural schematic diagram of a shearing mechanism of a photovoltaic module end strip cutting and laying mechanism according to an embodiment of the utility model at one angle;

[0042] Fig. 9 It is a schematic structural diagram of another angle of the shearing mechanism of the photovoltaic module end strip cutting and laying mechanism according to an embodiment of the utility model;

[0043] Fig.10 It is a partially enlarged structural schematic diagram of the material pulling mechanism of the photovoltaic module end strip cutting and laying mechanism according to the embodiment of the utility model;

[0044] Fig.11 It is a structural schematic diagram of the temporary storage mechanism (part of the carrier plate is omitted) of the photovoltaic module end strip cutting and laying mechanism according to an embodiment of the utility model;

[0045] Fig.12 It is a structural schematic diagram of the handling unit of the photovoltaic module end strip cutting and laying mechanism according to an embodiment of the utility model.

[0046] Among them: 11, feeding mechanism; 110, material roll; 111, material cart; 112, linear guide; 113, slider; 114, locking assembly; 1141, locking plate; 1142, locking cylinder; 115, tray; 116, feeding drive wheel; 1160, displacement drive member; 117, fixed shaft; 1170, tension drive member; 1171, tensioning part; 118, first auxiliary wheel frame; 1181, first auxiliary wheel; 119, second auxiliary wheel frame; 1191, second auxiliary wheel; 1110, universal wheel; 12, shearing mechanism; 121, first frame; 122, material belt guide assembly; 123, guide wheel assembly; 1231, active guide wheel; 1232, driven guide wheel; 124, pneumatic scissors; 1 25. Material pressing member; 1251. Material supporting block; 1252. Material pressing cylinder; 126. Material strip detection sensor; 13. Material pulling mechanism; 131. Clamping jaw member; 132. Clamping jaw driving member; 14. Temporary storage unit; 141. Carrier plate; 1410. Groove; 142. Push rod; 143. Push driving member; 1431. Lifting driving member; 1432. Push driving member; 144. Push frame; 15. Transport unit; 151. Three-axis moving module; 152. Suction cup; 16. Material strip docking mechanism; 161. Vertical linear module; 162. First telescopic cylinder; 163. Second frame; 164. Second telescopic cylinder; 165. Belt pressing member; 166. Lower support frame; 100. Frame; 200. Conveying mechanism. DETAILED DESCRIPTION

[0047] To make the objectives, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0048] A photovoltaic module end strip cutting and laying mechanism provided by an embodiment of the present utility model is shown in Figures 1 to 12 , and includes a frame 100, a conveying mechanism 200, a feeding mechanism 11, a shearing mechanism 12, a pulling mechanism 13, a temporary storage unit 14, and a handling unit 15. The frame 100 includes a cuboid frame with a hollow interior and an outer shell plate. For the convenience of description, in the embodiments of the present utility model, the front-back direction of the frame 100 is described as the first direction, the left-right direction is described as the second direction, and the up-down direction is described as the third direction. That is to say, the first direction and the second direction are perpendicular to each other on the horizontal plane, and the first direction, the second direction, and the third direction are perpendicular to each other in space. The conveying mechanism 200 passes through a set of opposite sides of the frame 100 from the bottom of the frame 100 along the first direction, that is, the front and back sides as shown in Figure 1 , and is used to convey the photovoltaic module with the end strip to be laid into the frame 100 and fix it, so as to facilitate the subsequent laying of the end strip. The conveying mechanism 200 is a conventional mechanism for transporting photovoltaic modules in the prior art, and its specific structure will not be described in detail. It is the prior art and not the inventive point of the present utility model, and it is easy for those skilled in the art to know. When the photovoltaic module is transported to the position to be laid, the long side of the photovoltaic module is parallel to the second direction, and the short side is parallel to the first direction.

[0049] The feeding mechanism 11 in the embodiments of the present utility model is used for feeding the end strips of the long cushion strips on the photovoltaic module (the material can be selected from EVA or POE, in a day shape, including two parallel and spaced long cushion strips and three parallel and spaced short cushion strips), and the feeding mechanism 11 in the embodiments of the present utility model uses a multi-tray mechanism rotating around a vertical axis parallel to the third direction for feeding. In a preferred embodiment, the number of the feeding mechanisms 11 in the embodiments of the present utility model is two, and are示例性地如 (not clear what this phrase means, keeping it as is) shown as being relatively front and back and spaced apart at the inner bottom on the right side of the frame 100 (as shown in Figure 2 ). That is to say, both pulling mechanisms 13 pull the pulling belt along the second direction and the pulling directions are the same, both as shown in Figure 1 . That is, both pulling mechanisms 13 pull the pulling belt along the second direction and the pulling directions are the same, both as shown in Figure 1As shown, it is from right to left (as an alternative embodiment, it can also be from left to right). Compared with the prior art, which uses a large material roll 110-type feeding mechanism 11 that is horizontally rotated and arranged on one side of the length direction of the frame 100, the feeding mechanism 11 of the embodiment of the utility model fully utilizes the bottom space in the frame 100 without increasing the size of the frame 100. That is, in the embodiment of the utility model, a feeding mechanism 11, a shearing mechanism 12, a pulling mechanism 13 and a temporary storage unit 14 form a group and the two groups are arranged on both sides of the second direction opposite to each other, that is, Figure 1 As shown in the front and rear sides, two groups share a transport unit 15. When working, two groups of feeding mechanisms 11 can perform feeding operations in sequence, two groups of shearing mechanisms 12 can perform shearing operations in sequence, two groups of pulling mechanisms 13 can perform pulling operations in sequence, two groups of temporary storage units 14 can perform temporary storage of material strips in sequence, and the transport unit 15 can suck and transport the material strips from the two temporary storage units 14 to the corresponding positions of the two long pads of the photovoltaic module end strips in sequence.

[0050] Specifically, Figures 4 to 7 As shown, the loading mechanism 11 includes a material cart 111, a fixed shaft 117, a tray 115, a first auxiliary wheel frame 118, a second auxiliary wheel frame 119, a feeding drive and a locking assembly 114. The material cart 111 is slidably disposed in the right bottom space of the frame 100, that is, the material cart 111 can be pulled out from the right side panel of the frame 100 and pushed into the frame 100 to facilitate the replacement of a new material roll 110. In the embodiment of the utility model, the width of the material roll 110 is consistent with the width of the long pad strip in the end strip. During subsequent cutting, it is only necessary to pull the material strip to a length that is consistent with the length of the long pad strip through the pulling mechanism 13. In order to realize the movability of the material cart 111, the embodiment of the utility model, such as Figures 4 to 6 As shown, a linear guide rail 112 extending in the second direction is provided at the bottom end of the trolley 111. It should be noted that the linear guide rail 112 is preferably provided on the bottom panel of the frame 100, and can also be provided on the ground as an alternative. A slider 113 is also slidably provided on the linear guide rail 112, and the slider 113 is fixed to the bottom end of the trolley 111. In addition, a universal wheel 1110 is also provided at the bottom end of the trolley 111 to make the pulling out and pushing in of the trolley 111 smoother. A universal wheel 1110 is provided in the middle position of the trolley 111 along the third direction, i.e. Figure 4 The vertically extending fixed shaft 117 is shown, and the tray 115 and the material roll 110 are sleeved and fixed on the fixed shaft 117. Figure 4As shown, the fixed shaft 117 includes a shaft body with an axis along a third direction, and at least one tensioning portion 1171 such as an expansion bushing (preferably at least two in the embodiment of the utility model, so that two material rolls 110 can be discharged at one time, which just corresponds to the two long pads of the end strip) is arranged on the shaft body along its axis. The diameter of the expansion bushing is larger than the diameter at other positions of the shaft body, and the expansion bushing can be driven by pneumatic or electric means to tighten, such as Figure 4 As shown, at one end of the fixed shaft 117, Figure 4 The top end shown is provided with a tensioning driving member such as a cylinder for driving the expansion sleeve to expand and contract. The axial ends of the expansion sleeve are respectively used to fix the tray 115, the material roll 110 is clamped on the expansion sleeve, and the tray 115 is fixed at the axial upper and lower ends of the expansion sleeve. In the embodiment of the utility model, at least two rolls of material 110 and at least two trays 115 are preferably provided. A feeding driving member is in contact with two trays 115 at the axial ends of a tensioning portion 1171. When feeding, the feeding driving member drives the tray 115 to rotate to drive the rotation feeding of the material roll 110 fixed to the tensioning portion 1171 and located between the two driven trays 115. In other words, the feeding driving member is arranged on the outside of the tray 115 and is in rotational contact with the tray 115, and the friction force drives the tray 115 to rotate around the axis of the fixed shaft 117, thereby driving the material roll 110 to rotate and feed. Preferably, a feeding driving member can also be in rotational contact with two adjacent trays 115 between any two adjacent tensioning portions 1171. That is to say, one feeding drive can drive two material rolls 110 to feed at the same time, greatly improving efficiency. When the number of feeding drives is at least two, at least two feeding drives are arranged vertically at intervals up and down (can be on the same vertical line; can also be staggered up and down along the circumference, that is, no longer on the same vertical line; can also be arranged circumferentially at intervals, that is, two feeding drives are on the same horizontal plane, driving the same tray 115). For the feeding drive, in the embodiment of the utility model, the feeding drive can approach or move away from the tray 115 along the radial direction of the tray 115. Only when the corresponding tray 115 needs to be driven to rotate, the feeding drive will approach the tray 115 and contact the tray 115. When the corresponding tray 115 does not need to be driven to rotate, the feeding drive will move away from the corresponding tray 115 and will not contact the corresponding tray 115. That is, the plurality of feeding drive members selectively contact with the corresponding tray 115 and drive the tray 115 to rotate, that is, when one feeding drive member contacts with the corresponding tray 115 to drive, the other feeding drive members are away from the corresponding tray 115. For example, Figures 4 to 6As shown, the feeding drive member includes a feeding drive wheel with an axis extending along a third direction, a feeding drive motor driving the feeding drive wheel to rotate, and a displacement drive member 1160 such as a telescopic cylinder and / or a linear slide block, etc., driving the feeding drive motor and the feeding drive wheel to move along the radial direction of the tray 115 toward or away from the corresponding tray 115. In the embodiment of the utility model, a first auxiliary wheel frame 118 and a second auxiliary wheel frame 119 are respectively provided on the outer side of the tray 115, more specifically on two adjacent sides of the material cart 111, wherein the first auxiliary wheel frame 118 is provided with a first auxiliary wheel 1181, and the first auxiliary wheel 1181 is also provided along the third direction, i.e., as shown in FIG. Figure 4 There are multiple first auxiliary wheels 1181 in the vertical direction shown in the figure. It should be noted that the number and height of the first auxiliary wheels 1181 correspond to the material roll 110 being fed, and the axis of the first auxiliary wheel 1181 is along the third direction, that is, the material strip is fed from the material roll 110 in a vertical state (the wide side of the material strip is along the vertical direction). The second auxiliary wheel frame 119 is provided with a second auxiliary wheel 1191. Similarly, the second auxiliary wheel 1191 is along the third direction, that is, Figure 4 There are multiple auxiliary wheels 1181 in the vertical direction, and the number and height correspond to the first auxiliary wheel 1181. In the embodiment of the utility model, the axis of the second auxiliary wheel 1191 is along the horizontal direction, that is, along the second direction. After the material belt passes through the second auxiliary wheel 1191, it will change from a vertical state to a horizontal state. After that, the material belt changes to a vertical state again (the long side of the material belt is along the vertical direction) and reaches the shearing mechanism 12 upward. In the embodiment of the utility model, the multi-material tray feeding mechanism 1 can realize the feeding of the long pad strips of the photovoltaic module end strips (the material can be EVA or POE, in the shape of a Japanese character, including two parallel long pad strips and three parallel short pad strips). The feeding mechanism 10 fully utilizes the bottom space in the frame 100, and does not need to occupy the side space of the frame like the large material roll feeding mechanism around the horizontal axis in the prior art, resulting in a large volume of the entire device and a large footprint. The size of the entire device of the cutting and laying machine of the utility model will not be significantly increased, and multiple rolls can be fed at one time, greatly improving production efficiency. As an alternative embodiment, the axis of the fixed shaft 117 may also be horizontal, such as along the first direction. As another alternative embodiment, the bottom of the trolley 111 may not be provided with the slider 113 and the linear guide rail 112 .

[0051] When the material roll 110 on the material cart 111 is driven to rotate for feeding, the material cart 111 may be driven to move, thereby affecting the feeding. Figure 5 As shown, in the embodiment of the utility model, a locking assembly 114 is provided on one end of the material cart 111 along the extension direction of the second guide rail and on the bottom surface or the ground of the frame 100 to lock the material cart 111 and prevent it from moving. Figure 5As shown, it includes a locking plate 1141 and a locking cylinder 1142. The locking plate 1141 is arranged at the bottom of one end of the material cart 111 along the extension direction of the second guide rail, that is, the side close to the conveying mechanism 200. The locking cylinder 1142 is arranged on the frame 100 or on the ground and can be telescopically moved. The locking plate 1141 is provided with a locking hole, and the axial direction of the locking hole is perpendicular to the extension direction of the second guide rail. The locking cylinder 1142 is provided with a locking rod connected to its piston or piston rod, which can be extended or retracted toward the locking hole. The axis of the locking rod is parallel to the locking hole. After the material cart 111 is pushed to the predetermined position, the locking rod can be extended and inserted into the locking hole to lock the material cart 111.

[0052] In the embodiment of the utility model, two rolls of material 110 are preferably used for feeding at the same time, that is, two material strips can be fed at the same time, which just corresponds to the number of two long pads of the end strip. As an alternative, the number of the material roll 110 in the embodiment of the utility model can also be only one. Although the efficiency of this embodiment is relatively low, it occupies less space and has lower costs.

[0053] like Figure 8 and Fig. 9As shown, the shearing mechanism 12 includes a first frame 121, a material belt guide assembly 122, a guide wheel assembly 123, a material pressing piece 125 and a pneumatic scissors 124. The first frame 121 is mounted on the frame 100 and is located above the feeding mechanism 11. The material belt guide assembly 122 is arranged at the lower part of the first frame 121 and includes at least two groups of guide members arranged at intervals along the third direction. Each group of guide members defines a guide cavity for conveying the material belt from bottom to top along the third direction. The size of the guide cavity is adjustable and is consistent with the width of the material belt during guiding to avoid lateral deviation of the material belt. In order to achieve the adjustment of the guide cavity, each group of guide members is composed of two guide blocks arranged oppositely and at intervals along the first direction. The guide blocks can be connected to a cylinder (not shown) and driven by the cylinder to move laterally to achieve the adjustment of the guide cavity. The guide wheel assembly 123 is arranged above the material strip guiding assembly 122, and is used to pull and flatten the material strip so that the material strip is converted from a vertical state to a horizontal state again, that is, the material strip is converted from the long side along the third direction to the long side along the second direction, so as to be consistent with the direction of the long pad strip of the end strip on the photovoltaic component where the pad strip is to be laid. Specifically, the guide wheel assembly 123 includes a driving guide wheel 1231 and a driven guide wheel 1232 which are relatively arranged up and down along a third direction and can move relatively, wherein the driving guide wheel 1231 is arranged at the bottom and fixed relative to the first frame 121, the axis of the driving guide wheel 1231 is along the first direction and can rotate around the axis of the first direction, the driven guide wheel 1232 is arranged at the top and can move up and down relative to the first frame 121, that is, close to or away from the driving guide wheel 1231, similarly, the axis of the driven guide wheel 1232 is also along the first direction and can rotate around the axis of the first direction, illustratively, the driven guide wheel 1232 includes a guide wheel body and a vertically retractable cylinder (not marked) fixed above the guide wheel body. When the driving guide wheel 1231 and the driven guide wheel 1232 are away from each other, the feeding belt can be inserted, and after the material belt is inserted, they are close to each other and pressed tightly, and the material belt is driven to be transported toward the pneumatic scissors 124 at the rear by the relative rotation of the two. In order to facilitate the cutting of the material strip into strips, both sides of the cutting position of the material strip need to be fixed, and one end of the material strip is fixed by the material pulling mechanism 13, and the other end, that is, the position between the guide wheel assembly 123 and the pneumatic scissors 124, also needs to be fixed. In the present invention, a material pressing piece 125 is provided to achieve this. Fig. 9 As shown, the pressing member 125 is arranged along the second direction, that is, Figure 1 The right-to-left direction shown is arranged behind the guide wheel assembly 123, that is, Figure 1As shown, it is arranged on the left side and close to the material pulling mechanism 13, including a supporting block 1251 fixed to the first frame 121 and a pressing cylinder 1252 arranged above the supporting block 1251 and movable along a third direction, i.e., vertically, toward or away from the supporting block 1251 relative to the first frame 121. As for the pneumatic scissors 124, they are conventional pneumatically driven scissors for shearing operations in the prior art. Their specific structure and working principle are not described or limited here, and can be easily known and implemented by those skilled in the art. The pneumatic scissors 124 can be arranged on the first frame 121 and opened and closed along the third direction and located between the pressing piece 125 and the material pulling mechanism 13, so as to cut the material strip fed along the second direction to form a material strip corresponding to the long pad strip of the end strip.

[0054] Preferably, in order to enable the operator to promptly find out whether the material roll 110 has been released and to replenish the material in time, Figure 8 and Fig. 9 As shown, in the embodiment of the utility model, a tape detection sensor 126 for detecting the presence of a tape is also provided at the bottom of the first frame 121. When the tape is continuously fed, the tape detection sensor 126 at the bottom of the first frame 121 can detect the tape, but when the current material roll 110 is released and the tail end of the tape has passed the bottom of the first frame 121 and reached the tape guide assembly 122 at the lower end of the first frame 121, the tape detection sensor 126 cannot detect the tape. Preferably, the cutting and laying machine is also provided with an alarm device (not shown), and the tape detection sensor 126 is electrically connected to the alarm device. When the tape detection sensor 126 detects that there is no tape, the alarm device will sound an alarm and stop the continuous feeding of the tape. At this time, the operator can replace the new material roll 110 in time. The tape detection sensor 126 is an existing conventional photoelectric sensor, and the specific structure and principle are not described and limited, and those skilled in the art can easily know it.

[0055] like Fig.10 As shown, the material pulling mechanism 13 includes a clamping member 131 that can move along the third direction to clamp or release, a clamping driver 132 such as a cylinder for driving the clamping member 131 to clamp or release, and a material pulling driver (such as a structural member composed of a guide rail, a slider 113, a motor, and a transmission belt) for driving the clamping member 131 to move along the second direction. The clamping member 131, the clamping driver 132 and the material pulling driver are all arranged at the upper end of the frame 100. It should be noted that the speed of the clamping driver 132 of the material pulling mechanism 13 in the embodiment of the utility model is lower than the speed of the reducer connected to the active guide wheel 1231.

[0056] The temporary storage unit 14 is arranged below the material pulling drive member. Fig.11As shown, the temporary storage unit 14 includes a carrier plate 141, a push rod 142 and a push driving member 143. Among them, the carrier plate 141 is plate-shaped and is arranged on the frame 100 and extends along the second direction. The carrier plate 141 can be an integral plate, or it can be composed of multiple small plates spliced ​​along the second direction. The width of the carrier plate 141 must be greater than the width of at least two material strips, so that at least two material strips can be stored on the carrier plate 141. In order to reduce the distance that the conveying unit 15 moves along the first direction and absorbs the material strips on the temporary storage unit 14 away from the photovoltaic module side, the embodiment of the utility model is done in this way. In this practical embodiment, the carrier plate 141 is provided with multiple areas along the first direction, such as a working area, a standby area, and a recycling area, wherein the working area is close to the inside and the standby area is located in the middle. At the beginning, the second material strip is placed in the standby area. After the second material strip in the working area is loaded by the handling unit 15, the second material strip in the standby area needs to be moved to the working area. In order to realize the movement of the second material strip in the standby area to the working area, a plurality of grooves 1410 arranged at intervals along the second direction are provided on the carrier plate 141. The grooves 1410 extend along the first direction. A push rod 142 is provided in the groove 1410. The push rod 142 can move up and down in the groove 1410 and can be driven by the push driving member 143 to move horizontally along the extension direction of the groove 1410. The up and down movement can be achieved by means of a vertically retractable lifting driving member 1431 connected to the bottom of the push rod 142, such as a cylinder, and the horizontal movement along the extension direction of the groove 1410 can be achieved by a push driving member 1432 moving along the first direction, such as a cylinder. More specifically, the push rod 142 and the lifting driving member 1431 are arranged on a pushing frame 144 extending in the second direction, and the pushing frame 144 is connected to the driving end of the pushing driving member 1432. When working, the lifting driving member 1431 can first drive the pushing rod 142 to push upward and lean against the side of the long side of the material strip, and then the pushing driving member 1432 drives the pushing frame 144 to move horizontally in the first direction and drive the pushing rod 142 to push the material strip along the extension direction of the groove 1410, so that the material strip moves from one end of the groove 1410, that is, the end away from the photovoltaic module, to the other end, that is, the end close to the photovoltaic module. In other words, the transport unit 15 first absorbs the material strip on the side close to the photovoltaic module on the temporary storage unit 14 for laying, and then the pushing driving member 143 pushes the material strip originally on the side away from the photovoltaic module on the temporary storage unit 14 to the side close to the photovoltaic module, so as to facilitate the transport unit 15 to absorb and also facilitate the subsequent temporary storage of new material strips.

[0057] In the embodiment of the utility model, Fig.12As shown, the transport unit 15 includes a three-axis movable module 151 connected to the upper end of the frame 100 and a suction cup 152 arranged on the three-axis movable module 151. The three-axis movable module 151 can move along the first direction, the second direction and the third direction, so as to adjust the position of the suction cup 152 at the bottom in space. No description or limitation is made for the three-axis movable module 151, which is a conventional three-axis movable module 151 structure in the prior art, and it is easy for those skilled in the art to know and implement it. For the suction cup 152, a conventional vacuum suction cup 152 in the prior art is adopted. The three-axis movable module 151 can absorb or lay when it moves downward along the third direction, and keep the sucked object fixed between the suction cup 152 and prevent it from falling when it moves upward. In the embodiment of the utility model, the suction cups 152 are arranged in rows along the length direction of the long pad. Preferably, the transport unit 15 in the embodiment of the utility model is also provided with a hot air blowing mechanism (not shown) for heating the pad strips to melt them and stick them on the photovoltaic module. The heating temperature can be controlled and adjusted through thermocouple feedback. This is a prior art and is not an innovation of the utility model. As an alternative embodiment, the transport unit 15 can also be other structures besides the suction cup, such as a suction nozzle.

[0058] In order to ensure the continuous feeding of the material roll 110, it is necessary to make the head end of the material strip of the newly replaced material roll 110 butt with the tail end of the material strip of the previous material roll 110. Therefore, it is necessary to add a material strip butt joint device. In order to avoid interference between the material strip butt joint device and the material roll 110, the material strip butt joint device in the embodiment of the utility model is movable in space. During the material strip feeding process, the material strip butt joint device is on one side of the shearing mechanism 12, such as Figure 1 When the strips need to be butted, the strip butt device is as shown in FIG. Figure 1 The rear side of the shearing mechanism 12 shown moves to the position shown in FIG. Figure 1 The right side of the shear mechanism 12 is shown. Figure 3 As shown, the material strip docking device includes a vertical linear module 161 extending along a third direction, a first telescopic cylinder 162 slidably mounted on the vertical linear module 161 and capable of being telescopic along a first direction, a second frame 163 connected to a driving end of the first telescopic cylinder 162, a second telescopic cylinder 164 mounted at the bottom of the second frame 163 and capable of being telescopic along a third direction, i.e., vertically, a tape pressing member 165 mounted at the bottom of the second telescopic cylinder 164, and a belt pressing member 165 disposed on the frame 100 and located as shown in FIG. Figure 3The right side of the shearing mechanism 12 shown is provided with a lower support frame 166 and a hot melt component for supporting the head end of the newly replaced material roll 110 and the tail end of the previous material strip. The hot melt component can be a conventional heating device such as a thermocouple on the market, which can be set on the belt pressing member 165 or on the lower support frame 166. After the head end of the newly replaced material strip and the tail end of the previous material strip are butted, they are pressed and fixed on the lower support frame 166 by the belt pressing member 165 and heated and melted together.

[0059] As one alternative embodiment of the feeding mechanism 11, there are two feeding mechanisms 11 and the two feeding mechanisms 11 are arranged diagonally. In other words, the two pulling mechanisms 13 both pull the material belt along the second direction but in opposite directions.

[0060] As another replaceable embodiment of the feeding mechanism 11 , there is only one feeding mechanism 11 , which can be arranged at any of the four corner positions of the bottom of the frame 100 .

[0061] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A photovoltaic module end strip cutting and laying mechanism, comprising a frame and a conveying mechanism, wherein the conveying mechanism is used to convey the photovoltaic module into the frame for laying the end strip and convey the photovoltaic module out of the frame after the laying operation is completed and the photovoltaic module passes through a set of opposite sides of the frame along a first direction, wherein the first direction is parallel to the short side of the photovoltaic module; characterized in that: A loading mechanism for loading end strips is provided at the bottom of the frame, and a shearing mechanism corresponding to the end strips for cutting the material strips into strips is also provided on the frame above the loading mechanism. A pulling mechanism for stretching the material strips along a second direction perpendicular to the first direction in a horizontal plane is also provided behind the shearing mechanism along the loading direction of the material strips, and a temporary storage unit for placing the cut strips is also provided below the pulling mechanism. A conveying unit that can move along the first direction, the second direction and a third direction perpendicular to the first and second directions to move the material strips and lay them on the photovoltaic module is also provided at the upper end of the frame. The loading mechanism uses a multi-material tray mechanism that can rotate around a vertical axis parallel to the third direction or a horizontal axis parallel to the first direction for feeding.

2. The photovoltaic module end strip cutting and laying mechanism according to claim 1, characterized in that: There are two feeding mechanisms, and the two feeding mechanisms are arranged on the same side of the first direction and are relatively spaced apart from each other, or are arranged on both sides of the first direction and are diagonally arranged. A shearing mechanism is provided above each feeding mechanism, and a pulling mechanism is provided behind each shearing mechanism. A temporary storage unit is provided below each pulling mechanism. There is one conveying unit, and the conveying unit reciprocates above the two temporary storage units.

3. The photovoltaic module end strip cutting and laying mechanism according to claim 1 or 2, characterized in that: The feeding mechanism comprises: A material cart is provided with a fixed shaft, and at least two tensioning parts that can be radially expanded and contracted for fixing the material coil are provided on the fixed shaft along the axial direction thereof, and a tray is fixed at each end of any of the tensioning parts, and an expansion and contraction driving member for driving the tensioning part to expand and contract is fixed at one end of the fixed shaft; At least one feeding drive member, which is arranged on the outer side of the tray and is in rotational contact with at least one of the trays to drive the tray to rotate and drive the material roll to release the material belt; A first auxiliary wheel frame, which is arranged on the material cart and located outside the tray, and is provided with a first auxiliary wheel with an axis along the third direction; A second auxiliary wheel frame is arranged behind the first auxiliary wheel frame along the discharge direction of the material strip, and is provided with a second auxiliary wheel with an axis in a horizontal direction, and the material strip is wound around the first auxiliary wheel and the second auxiliary wheel in sequence and changes from a vertical state to a horizontal state; A locking assembly includes a locking plate arranged at the bottom of one end of the trolley and a retractable and movable locking cylinder arranged on the frame or the ground. A locking hole is provided on the locking plate. The locking cylinder is provided with a locking rod connected to its piston or piston rod and can be extended or retracted toward the locking hole. After the trolley is pushed to a predetermined position, the locking rod can be extended and inserted into the locking hole to lock the trolley.

4. The photovoltaic module end strip cutting and laying mechanism according to claim 3, characterized in that: A second slide block is provided at the bottom of the trolley, and the second slide block is slidably matched with a second linear guide rail fixed on the ground or on the bottom surface of the frame; and / or The number of the feeding drive members is at least two, and at least two of the feeding drive members are arranged circumferentially and / or vertically on the outer side of the tray.

5. The photovoltaic module end strip cutting and laying mechanism according to claim 4, characterized in that: The feeding drive member includes a feeding drive wheel rotatably arranged around an axis parallel to the third direction, a feeding drive motor driving the feeding drive wheel to rotate around its axis, and a displacement drive member driving the feeding drive wheel and the feeding drive motor as a whole to move closer to or away from the pallet along the radial direction of the pallet.

6. The photovoltaic module end strip cutting and laying mechanism according to claim 1 or 2, characterized in that: The shearing mechanism comprises: A first frame body, which is mounted on the frame and located above the feeding mechanism, and a material belt detection sensor for detecting the presence or absence of the material belt is also provided at the bottom of the first frame body; a material belt guide assembly, which is disposed at the lower part of the first frame and includes at least two groups of guide members spaced apart along the third direction, the two groups of guide members defining a guide cavity for conveying the material belt from bottom to top along the third direction, and any group of guide members includes two guide blocks that are opposite and spaced apart along the first direction; A guide wheel assembly is provided on the upper part of the first frame and comprises a driving guide wheel and a driven guide wheel which are arranged relatively and can move relatively along the third direction, wherein the driving guide wheel is fixed relative to the first frame in the third direction but can rotate around an axis parallel to the first direction, and the driven guide wheel can move closer to or away from the driving guide wheel relative to the first frame in the third direction and can rotate around an axis parallel to the first direction, and the material belt changes from a horizontal state to a horizontal state along the second direction after passing through the material belt guide assembly and the guide wheel assembly vertically; A material pressing member, which is arranged behind the guide wheel assembly along the second direction and close to the material pulling mechanism, and comprises a material holding block fixed to the first frame and a material pressing cylinder which can move closer to or away from the material holding block along the third direction relative to the first frame; The pneumatic scissors are arranged on the first frame in an openable and closable manner and are located between the material pressing member and the material pulling mechanism.

7. The photovoltaic module end strip cutting and laying mechanism according to claim 6, characterized in that: A material tape butt joint device is also provided on the side of the first frame body and can move toward one side of the first frame body to butt and fuse the head end of the material tape of the newly replaced material roll with the tail end of the previous material tape.

8. The photovoltaic module end strip cutting and laying mechanism according to claim 1 or 2, characterized in that: The material pulling mechanism comprises: A clamping jaw member that can move along a third direction to clamp or release, a clamping jaw driving member used to drive the clamping jaw member to clamp or release, and a material pulling driving member used to drive the clamping jaw member to move along the second direction. The clamping jaw member, the clamping jaw driving member and the material pulling driving member are all arranged at the upper end of the frame.

9. The photovoltaic module end strip cutting and laying mechanism according to claim 1 or 2, characterized in that: The temporary storage unit comprises: a carrier plate, which is arranged on the frame and below the material pulling mechanism so as to extend along the second direction, and is provided with a plurality of grooves arranged at intervals along the second direction, any of the grooves extending along the first direction, and the material strips cut by the shearing mechanism are temporarily stored on the carrier plate; A push rod, the bottom of any of the grooves is provided with a push rod which can move upward and along the extension direction of the groove from one end of the groove to the other end, and the push rod pushes the end of the groove temporarily stored on the carrier plate and covering the groove close to the outer side of the frame to the end close to the inner side of the frame; The pushing drive member includes a lifting drive member whose driving end is connected to the pushing rod and drives the pushing rod to extend and retract vertically to lift the material strip, and a pushing drive member whose driving end is connected to the pushing frame for mounting the pushing rod and drives the pushing frame to drive the pushing rod to move horizontally along the first direction.

10. The photovoltaic module end strip cutting and laying mechanism according to claim 1 or 2, characterized in that: The transport unit comprises a three-axis moving module and a suction cup arranged at the bottom of the three-axis moving module and used for grabbing and laying the material strips.

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