Packaging system for solar panel stack

Abstract

The present invention provides a packaging system for a solar panel stack, the system comprising: a first conveyor device for transferring, in a first direction, a pallet on which a stack of solar panels has been placed; a packaging device, disposed adjacent to a worktable on which the stack has been placed, for packaging the stack in a box; a second conveyor device which is spaced apart from the first conveyor device and discharges only the pallet; and a transfer device which is disposed between the first conveyor device and the second conveyor device and transfers the pallet from the first conveyor device to the second conveyor device.

Description

Packaging system for solar panel stacks

[0001] The present invention relates to a packaging system for solar panel stacks, and more specifically, to a system for packaging solar panels in stack units.

[0002] A solar panel is a plate-shaped assembly that integrates components capable of converting light energy into electrical energy. The installation site for solar panels must be selected considering environmental factors such as solar irradiance and duration of sunshine; additionally, safely transporting the manufactured panels from the production facility to the installation site is also crucial. To this end, a process of packaging the solar panels into shipping boxes is performed.

[0003] Generally, the packaging process for solar panels consists of a process of stacking multiple solar panels horizontally or vertically to form a stack, and a process of placing the formed stack into a box.

[0004] However, conventionally, the solar panel packaging process has been conducted using a semi-automatic system that requires partial manual work by operators, leading to issues such as limitations in workability, increased risk of accidents, higher manufacturing costs, and variations in packaging quality. Accordingly, there is a need for an automatic packaging system that can improve the efficiency, safety, and economic viability of the solar panel packaging process while uniformly controlling packaging quality.

[0005] The present invention aims to provide a packaging system for solar panel stacks that improves the efficiency, safety, economic feasibility, and packaging quality of the packaging process by automating the process of packaging solar panels in stack units.

[0006] One aspect of the present invention provides a packaging system for a solar panel stack, comprising: a first conveyor device for transporting a pallet on which a stack of solar panels is placed in a first direction; a packaging device disposed adjacent to a workbench on which the stack is placed and for packaging the stack into a box; a second conveyor device disposed spaced apart from the first conveyor device and for discharging only the pallet; and a transfer device disposed between the first conveyor device and the second conveyor device and for transferring the pallet from the first conveyor device to the second conveyor device.

[0007] A packaging system for a solar panel stack according to one embodiment of the present invention can reduce the number of workers and working hours and improve productivity and economic efficiency by performing the packaging process of the solar panel as an automated operation.

[0008] A packaging system for a solar panel stack according to one embodiment of the present invention can prevent operator error and facilitate control of packaging quality because the steps of transporting the solar panel stack, placing packaging materials, and inserting the box are all performed automatically.

[0009] A packaging system for a solar panel stack according to one embodiment of the present invention can improve worker safety and process efficiency by separating the input path and the output path of a pallet for transporting the stack and automatically circulating them.

[0010] The effects of the present invention are not limited to the effects described above, and unmentioned effects will be clearly understood by those skilled in the art from this specification and the attached drawings.

[0011] FIG. 1 is a schematic diagram showing a packaging system for a solar panel stack according to one embodiment of the present invention.

[0012] Figure 2 is an exploded perspective view of a solar panel packaged by the packaging system of the solar panel stack of Figure 1.

[0013] FIG. 3a is a drawing illustrating the state in which a stack is transported by the conveyor device and rotating device of FIG. 1.

[0014] FIG. 3b is a diagram illustrating the state in which the stack is rotated by the rotating device of FIG. 1.

[0015] FIG. 4a is a diagram illustrating the state in which a stack moving device approaches a rotating device after a stack is loaded and rotated on the rotating device of FIG. 1.

[0016] FIG. 4b is a diagram illustrating the process of the stack moving device of FIG. 1 lifting the stack and moving the stack from the rotating device to the workbench.

[0017] FIG. 4c is a diagram illustrating the process of the stack moving device of FIG. 1 placing a stack on a workbench.

[0018] Figure 5 is a diagram illustrating the process of the transfer device and the second conveyor device of Figure 1 recovering an empty pallet from the rotating device.

[0019] FIGS. 6A and 6B are schematic drawings illustrating the state in which the cover installation device, alignment device, and box guide device of FIG. 1 are positioned on the side of a stack placed on a workbench.

[0020] FIG. 6c is a block diagram schematically illustrating the cover installation device, alignment device, and controller of the packaging system of the solar panel stack shown in FIG. 1.

[0021] FIG. 6d is a schematic plan view illustrating the state in which the cover installation device, alignment device, box guide device, and packaging device of FIG. 1 are arranged on the side of a stack placed on a workbench.

[0022] FIG. 7a is a schematic diagram illustrating the state in which the packaging device of FIG. 1 packages a stack placed on a workbench into a box.

[0023] FIG. 7b is a perspective view of a part of the gripper and robot arm of the packaging device shown in FIG. 7a, viewed from below.

[0024] FIG. 7c is a block diagram schematically illustrating the packaging device and controller of the packaging system of the solar panel stack shown in FIG. 1.

[0025] FIG. 8a is a flowchart of a packaging method for a solar panel stack according to one embodiment of the present invention.

[0026] FIG. 8b is a flowchart showing the subdivision of step S600 of a packaging method for a solar panel stack according to one embodiment of the present invention.

[0027] FIG. 8c is a flowchart showing the subdivision of step S660 of a packaging method for a solar panel stack according to one embodiment of the present invention.

[0028] FIG. 9 is a drawing illustrating the process of installing a corner cover on the side of a stack placed on a workbench using the cover installation device of FIG. 1.

[0029] FIG. 10a is a drawing illustrating the state in which the alignment device of FIG. 1 is operated to align a stack placed on a workbench.

[0030] FIG. 10b is an enlarged plan view of part A1 of FIG. 10a.

[0031] FIGS. 11a and FIGS. 11b are drawings for explaining the process of aligning a stack placed on a workbench using the alignment device of FIG. 1.

[0032] FIG. 11c is an enlarged plan view of section A2 of FIG. 11a.

[0033] FIG. 12 is a drawing showing the state in which the cover installation device of FIG. 1 is spaced apart from the stack placed on the workbench.

[0034] FIG. 13 is a drawing showing the state in which the packaging device of FIG. 1 places a cover member on the upper surface of a stack placed on a workbench.

[0035] FIG. 14 is a drawing showing the state in which the guide bar of the box guide device of FIG. 1 is placed on the side of a stack placed on a workbench.

[0036] FIG. 15 is a drawing showing the state in which a packaging device moves a box to package a stack placed on a workbench.

[0037] FIG. 16a is a drawing showing a state in which a box is tilted so as to be caught on the catch of a guide bar by a packaging device.

[0038] FIG. 16b is a vertical cross-sectional view of section A3 of FIG. 16a enlarged.

[0039] FIG. 17a is a drawing showing the state in which the box is moved by a packaging device so that the upper edge of the stack comes into the box.

[0040] FIG. 17b is a vertical cross-sectional view of section A4 of FIG. 17a enlarged.

[0041] FIGS. 18a to 18c are drawings showing a state in which a box is tilted stepwise so that the upper surface corners of the stack can sequentially enter the box by means of the packaging device of FIG. 1.

[0042] FIG. 19a is a vertical cross-sectional view showing the state in which the guide portion of the box guide device is spaced apart from the side of the stack.

[0043] FIG. 19b is a drawing showing the state in which the guide bar of the box guide device is moved to come out of the box.

[0044] FIG. 20 is a drawing showing the state in which a box is lowered for a period of time so that a stack is brought inside by a packaging device.

[0045] FIG. 21 is a diagram showing the state in which the alignment frame of the alignment device is separated from the stack.

[0046] FIG. 22 is a diagram showing the state in which the box is lowered for the remainder of the section so that the stack comes inside by the packaging device.

[0047] One aspect of the present invention provides a packaging system for a solar panel stack, comprising: a first conveyor device for transporting a pallet on which a stack of solar panels is placed in a first direction; a packaging device disposed adjacent to a workbench on which the stack is placed and for packaging the stack into a box; a second conveyor device disposed spaced apart from the first conveyor device and for discharging only the pallet; and a transfer device disposed between the first conveyor device and the second conveyor device and for transferring the pallet from the first conveyor device to the second conveyor device.

[0048] In addition, the second conveyor device is positioned parallel to the first conveyor device and can discharge the pallet in the opposite direction to the first conveyor device.

[0049] Additionally, the transfer device may include a gantry unit positioned at the exit end of the first conveyor device and the inlet end of the second conveyor device, and a gripper unit that moves along the gantry unit and grips the pallet.

[0050] In addition, the transfer device has the gantry unit extending in a second direction above the first conveyor device and above the second conveyor device, and the gripper unit can move linearly in the second direction.

[0051] Additionally, it may further include a rotating device positioned at the exit end of the first conveyor device and rotating to change the orientation of the pallet and the stack.

[0052] In addition, the rotating device can change the pallet from the first direction to the second direction before the stack is picked up from the pallet.

[0053] In addition, the rotating device can change the pallet from the second direction back to the first direction before the transfer device picks up the pallet.

[0054] Additionally, it may further include a stack transfer device that is movably provided between the first conveyor device and the workbench and transfers the stack from the pallet to the workbench.

[0055] Additionally, the stack moving device may comprise a base body movably provided between the conveyor device and the workbench, a fork body rotatably coupled to the base body, a first extension extending from the fork body to support one side of the stack, a second extension extending from the fork body to support the other side of the stack, and a detachment prevention part rotatable to the second extension to support a side opposite to one side of the stack or to be spaced apart therefrom.

[0056] Additionally, the stack moving device has the first extension inserted between the pallet and the bottom of the stack, and the fork body rotates so that the stack can be separated from the pallet.

[0057] Additionally, the packaging device may include a first packaging module positioned adjacent to one side of the workbench and covering one side of the stack with a cover member, and a second packaging module positioned adjacent to the other side of the workbench and gripping the box to insert the box into the stack.

[0058] In addition, the second packaging module can insert the box into the stack by gripping the box such that the opening of the box faces downward.

[0059] Another aspect of the present invention provides a packaging system for a solar panel stack, comprising: a first conveyor device for transporting a pallet on which a stack of solar panels is placed in a first direction; a packaging device positioned adjacent to a workbench on which the stack is placed and packaging the stack into a box; a second conveyor device positioned parallel to but spaced apart from the first conveyor device and discharging only the pallet; a stack transfer device movably provided between the first conveyor device and the packaging device and transferring the stack from the pallet to the workbench; and a rotating device positioned at the exit end of the first conveyor device and rotating to change the orientation of the pallet and the stack.

[0060] Additionally, the rotating device may change the pallet and the stack from the first direction to the second direction before the stack moving device picks up the stack, and change the pallet back from the second direction to the first direction before the pallet is transferred to the second conveyor device.

[0061] Additionally, the packaging device may include a first packaging module positioned adjacent to one side of the workbench and covering one side of the stack with a cover member, and a second packaging module positioned adjacent to the other side of the workbench and gripping the box to insert the box into the stack.

[0062] In addition, the second packaging module can insert the box into the stack by gripping the box such that the opening of the box faces downward.

[0063] Additionally, it may further include a transfer device disposed between the first conveyor device and the second conveyor device to transfer the pallet from the first conveyor device to the second conveyor device.

[0064] Another aspect of the present invention provides a method for packaging a solar panel stack, comprising the steps of: loading a pallet on which a stack of solar panels is placed onto a first conveyor device; rotating the stack and the pallet, which are positioned at the exit end of the first conveyor device, to align the stack and the pallet in a predetermined direction; moving the aligned stack to a workbench using a stack moving device; returning only the pallet to its original direction using the rotating device; discharging the pallet returned to a second conveyor device spaced apart from the first conveyor device using a transfer device; and packaging the stack placed on the workbench into a box using a packaging device.

[0065] Additionally, the step of packaging the stack into a box may be performed simultaneously with the step of returning only the pallet to its original direction or the step of discharging the pallet.

[0066] Additionally, in the step of moving the stack to a workbench, a first extension of the stack moving device is inserted between the pallet and the bottom of the stack, and the fork body rotates so that the stack can be separated from the pallet.

[0067] The present invention is capable of various modifications and may have various embodiments; specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention, and the methods for achieving them, will become clear by referring to the embodiments described below in detail together with the drawings. However, the present invention is not limited to the embodiments disclosed below but can be implemented in various forms.

[0068] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the drawings, identical or corresponding components are given the same reference numerals, and redundant descriptions thereof will be omitted.

[0069] In the following embodiments, terms such as first, second, etc. are used not in a limiting sense, but for the purpose of distinguishing one component from another component.

[0070] In the following examples, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0071] In the following embodiments, terms such as "include" or "have" mean that the features or components described in the specification are present, and do not preclude the possibility that one or more other features or components may be added.

[0072] In the following embodiments, when a part such as a region or component is described as being in front of, behind, on, or under another part, it includes not only cases where it is in direct contact with the other part, but also cases where another region or component is interposed in between.

[0073] In the drawings, the size of components may be exaggerated or reduced for convenience of explanation. For example, the size and thickness of each component shown in the drawings are depicted arbitrarily for convenience of explanation, so the present invention is not necessarily limited to what is illustrated.

[0074] In addition, it is stated in advance that in the drawings, some components may be omitted, only a part of a component may be depicted, or a component may be schematically represented where it is deemed sufficient or necessary to explain areas, components, etc., or for the purpose of simplifying the drawings.

[0075] In the following embodiments, when regions, components, etc. are described as being connected, it includes not only cases where regions and components are directly connected, but also cases where other regions and components are interposed between regions and components to be indirectly connected.

[0076] The term "stack" refers to an assembly formed by stacking a plurality of solar panels in a predetermined direction. As an example, a stack formed by stacking a plurality of panels provided as rectangular flat plates in the thickness direction may have a rectangular prism shape. In this specification, one side of the stack should be understood as a configuration distinct from one side of the panel constituting the stack. For example, one side of the stack may be defined as one side of the panel stacked on the outermost side, or it may be defined as a surface formed as the perimeter of a panel connects to the perimeter of an adjacent panel.

[0077] The term "stacking direction" refers to the direction in which multiple solar panels are stacked. As an example, a stack formed by stacking flat panels facing each other will have a stacking direction parallel to the thickness direction of the panels.

[0078] FIG. 1 is a schematic diagram showing a packaging system (10) for a solar panel stack according to one embodiment of the present invention, and FIG. 2 is an exploded perspective view of a solar panel packaged by the packaging system for a solar panel stack of FIG. 1.

[0079] At this time, in FIG. 1, the arrangement of a plurality of devices constituting a packaging system (10) of a solar panel stack is only schematically illustrated in the order for packaging the stack into a box.

[0080] Referring to FIGS. 1 and 2, a packaging system (10) for a solar panel stack according to one embodiment of the present invention is a system for packaging a stack (20) formed by stacking a plurality of solar panels (P) in a box (50). At this time, the box (50) may be a transport box for packaging the stack (20) so that the plurality of solar panels (P) can be safely transported to an installation site.

[0081] A packaging system (10) for a solar panel stack may include a first conveyor device (100), a rotating device (200), a transfer device (250), a second conveyor device (300), a stack moving device (400), a cover installation device (500), an alignment device (600), a box guide device (700), a packaging device (800), and a controller (900).

[0082] According to one embodiment, the stack (20) can be loaded onto a pallet (F) and transported. The pallet (F) is provided with at least an upper surface that is flat, and the stack (20) can be placed on the upper surface of the pallet (F).

[0083] The first conveyor device (100) can transport a stack (20) and a pallet (F) in one direction. As a pallet (F) on which a stack (20) is placed is introduced to the entrance end of the first conveyor device (100), a packaging process in the solar panel stack packaging system (10) can be initiated.

[0084] The rotating device (200) is positioned adjacent to the first conveyor device (100) and can receive the stack (20) and pallet (F) transported by the first conveyor device (100). The rotating device (200) can rotate the stack (20) and pallet (F) as needed.

[0085] The stack moving device (400) can pick up the stack (20) and transfer it to the workbench (1000). The stack moving device (400) can move the stack (20) to the workbench (1000) and place it.

[0086] The second conveyor device (300) can discharge the pallet (F) to the outside of the system after the stack (20) is picked up by the stack moving device (400). That is, the pallet (F) can be introduced by the first conveyor device (100) and discharged by the second conveyor device (300).

[0087] A transfer device (250) may be disposed between the first conveyor device (100) and the second conveyor device (400). The transfer device (250) may be provided to transfer a pallet (F) between the first conveyor device (100) and the second conveyor device (400).

[0088] The cover installation device (500) can install a corner cover (30) on the corner of the stack (20) placed on the workbench (1000). Then, the alignment device (600) can align the stack (20) placed on the workbench (1000) in a stacking direction. Next, the packaging device (800) can place the stack (20) placed on the workbench (1000) into a box (50). At this time, the box guide device (700) can guide the box (50) being moved by the packaging device (800). And, the controller (900) can control the operation of the first conveyor device (100) to the packaging device (800). The packaging system (10) for solar panel stacks is equipped so that the controller (900) controls other components (100 to 800) to package the stack (20), and can automatically package a plurality of solar panels (P).

[0089] Accordingly, the packaging system (10) of a solar panel stack according to one embodiment can minimize the number of workers required to operate the packaging process, thereby reducing the manufacturing costs required for manufacturing and packaging the solar panel (P).

[0090] In addition, the packaging system (10) of a solar panel stack according to one embodiment can package the stack (20) in a box (50) consistently and accurately, so that a large amount of solar panels (P) can be packaged uniformly with high quality.

[0091] Solar panel packaging

[0092] Hereinafter, a package formed by packaging a stack (20) into a box (50) by a solar panel stack packaging system (10) is referred to as a ‘solar panel package.’ Referring to FIG. 2, the solar panel package may include a stack (20) formed by stacking a plurality of solar panels (P), a corner cover (30), a first cover member (40), a box (50), and a second cover member (60).

[0093] A solar panel (P) may consist of a flat panel portion (Pa) in which elements for converting incident sunlight into electrical energy are formed, and a frame portion (Pb) configured to support the periphery of the panel portion (Pa). This frame portion (Pb) may have a rectangular frame shape. Accordingly, the solar panel (P) may have an overall rectangular flat panel shape.

[0094] In one embodiment, the stack (20) may be an assembly in which a plurality of solar panels (P) standing vertically on the floor surface are stacked side by side in the horizontal direction (Y-axis direction). Accordingly, the stack (20) may have an overall rectangular shape. Additionally, the sides of the stack (20) may be provided with four side edges (24) extending in the vertical direction (Z-axis direction).

[0095] However, the shape of the solar panel (P) and the stack (20) that can be packaged by the solar panel stack packaging system (10) according to one embodiment is not limited to the shape described above, and the shape of the solar panel (P) and the stacking direction of the stack (20) can be varied as needed, and the configuration of the solar panel stack packaging system (10) can also be appropriately modified accordingly.

[0096] Meanwhile, corner covers (30) may be fitted onto each side corner (24) of the stack (20). The corner covers (30) can protect the corners of the stack (20) during the process of the stack (20) entering the box (50) and can support the stack (20) to be fixed in position within the box (50). For example, the corner covers (30) may be formed from a paper material. These corner covers (30) may have a folded shape that extends in a direction parallel to the side corner (24) of the stack (20) (Z-axis direction in FIG. 2) and allows the side corner (24) to be fitted.

[0097] Next, the box (50) for packaging the stack (20) may be formed from a sheet of paper material with one side (51) open so that the stack (20) can be placed inside. At this time, the sheet may be corrugated cardboard, but is not limited thereto.

[0098] Referring to FIG. 2, a first cover member (40) corresponding to the lower surface of the stack (20) may be interposed between the lower surface of the stack (20) and the bottom surface of the box (50). The first cover member (40) can protect and support the lower surface of the stack (20) inside the box (50).

[0099] A second cover member (60) may be attached to an open side (51) of the box (50). At this time, the second cover member (60) may be formed from a plate material of the same material as the box (50). The second cover member (60) can protect the stack (20) contained in the box (50) from external contamination or impact by sealing the box (50). Accordingly, a plurality of solar panels (P) can be provided in the form of a solar panel package and safely transported to the installation site.

[0100] FIG. 3a is a drawing illustrating the state in which a stack (20) is transported by the conveyor device (100) and the rotating device (200) of FIG. 1, and FIG. 3b is a drawing illustrating the state in which a stack (20) is rotated by the rotating device (200) of FIG. 1. FIG. 4a is a drawing illustrating the state in which a stack moving device (400) approaches the rotating device (200) after the stack (20) is loaded and rotated on the rotating device (100) of FIG. 1, FIG. 4b is a drawing for explaining the process in which the stack moving device (400) of FIG. 1 picks up the stack (20) and moves the stack (20) from the rotating device (200) to the workbench (1000), and FIG. 4c is a drawing for explaining the process in which the stack moving device (400) of FIG. 1 places the stack (20) on the workbench (1000). FIG. 5 is a drawing for explaining the process of the transfer device (250) and the second conveyor device (300) of FIG. 1 recovering a pallet (F) from the rotating device (200).

[0101] Hereinafter, with reference to the drawings described above, the first conveyor device (100), rotating device (200), transfer device (250), second conveyor device (300), and stack moving device (400) of the solar panel stack packaging system (10) will be described in more detail.

[0102] <1st Conveyor Device>

[0103] Referring to FIGS. 1 and FIGS. 3a, the packaging system (10) of a solar panel stack may include a first conveyor device (100).

[0104] The first conveyor device (100) can transport the stack (20) toward the workbench (1000). Hereinafter, the direction in which the first conveyor device (100) transports the stack (20) is defined as the 'first direction'. According to one embodiment, the first direction may be provided to be the same as the Y-axis direction of the drawing.

[0105] The first conveyor device (100) may include a main guide rail (110), a main conveying roller (120), and a main conveying actuator (130).

[0106] According to one embodiment, the main guide rail (110) may be extended in the front-rear direction (Y-axis direction) toward the workbench (1000). At this time, the main guide rail (110) may be provided as a pair and spaced apart from each other in the left-right direction (X-axis direction).

[0107] A plurality of main transfer rollers (120) may be provided between a pair of main guide rails (110). At this time, the plurality of main transfer rollers (120) may be arranged along the extension direction (Y-axis direction) of the main guide rails (110).

[0108] A pallet (F) on which a stack (20) is placed may be positioned on the upper side of the main conveying roller (120). As shown in FIG. 3a, the stack (20) may be placed on the pallet (F) such that the long side of the solar panel (P) is aligned parallel to the first direction. Hereinafter, the direction parallel to the long side of the solar panel (P) is defined as the length direction of the stack (20). At this time, since the stack (20) may be rotated or tilted in a predetermined direction, it should be understood that the length direction of the stack (20) is not fixed with respect to the illustrated coordinate axes (XYZ axes).

[0109] When the main conveying roller (120) is driven, the stack (20) and pallet (F) placed thereon can be conveyed in the first direction along the extension direction of the main guide rail (110).

[0110] Meanwhile, the main transfer roller (120) may be connected to a main transfer actuator (130) to receive rotational driving force. To this end, a predetermined power transmission member (not shown), such as a gear, chain, or belt, may be provided between the main transfer roller (120) and the main transfer actuator (130).

[0111] Meanwhile, referring to FIG. 1, a stack (20) transported by a first conveyor device (100) can be rotated in a predetermined direction and placed on a workbench (1000) to facilitate packaging into a box (50). To this end, the packaging system (10) for a solar panel stack may include a rotating device (200) and a stack moving device (400).

[0112] Rotating device

[0113] Referring to FIGS. 1, FIGS. 3a and FIGS. 3b, the rotating device (200) may be positioned between the exit end of the first conveyor device (100) and the work table (1000) and rotatably provided.

[0114] The rotating device (200) can receive the stack (20) and pallet (F) transported by the first conveyor device (100), and the rotating device (200) can rotate to change the direction of the stack (20) and pallet (F). Hereinafter, the direction of the stack (20) and pallet (F) that is changed by the rotating device (200) is defined as the 'second direction'. According to one embodiment, the second direction may be provided to be the same as the X-axis direction of the drawing.

[0115] According to one embodiment, the rotating device (200) may include a support base portion (210) installed on a floor surface and a rotating base portion (220) rotatably provided on the upper side of the support base portion (210). The rotating device (200) may be configured to rotate around a first axis (C1) perpendicular to the floor surface.

[0116] The support base portion (210) may include a disc-shaped support base plate (211) positioned horizontally with respect to the first axis (C1), a plurality of rotating rollers (212) rotatably coupled to the support base plate (211), and a rotating actuator (213) for rotating the rotation base portion (220) around the first axis (C1).

[0117] At this time, a virtual circular track (O) centered on the first axis (C1) may be placed on the upper surface of the support base plate (211). Additionally, a plurality of rotating rollers (212) may be spaced apart at predetermined intervals along the circular track (O). Accordingly, the plurality of rotating rollers (212) can support the lower part of the rotating base part (220).

[0118] A rotary actuator (213) may be spaced apart from the circumference of the support base plate (211). A belt-shaped power transmission member (214) for transmitting driving force may be provided between the rotary actuator (213) and the rotary base part (220) positioned above the support base plate (211). Accordingly, the driving force generated by the rotary actuator (213) can rotate the rotary base part (220) through the power transmission member (214).

[0119] A rotating base portion (220) may be provided on the upper side of the support base portion (210). A stack (20) and a pallet (F) transported by the first conveyor device (100) may be placed on the rotating base portion (220), and the stack (20) and the pallet (F) may be arranged in a predetermined direction as the rotating base portion (220) rotates.

[0120] The rotating base portion (220) may include a rotating base plate (221) rotatably provided with respect to a support base plate (211), a central frame (222) provided on the upper side of the rotating base plate (221), first and second sub-guide rails (223a, 223b) respectively provided on both sides of the central frame (222), a plurality of sub-transfer rollers (224) coupled to the first and second sub-guide rails (223a, 223b), a sub-transfer actuator (225) for driving the sub-transfer rollers (224), and first and second lifting / lowering frames (226a, 226b) provided on the rotating base plate (221) to enable lifting / lowering.

[0121] Referring to FIGS. 3a and 3b, the rotating base plate (221) has a flat plate shape parallel to the support base plate (211) and can be extended in the radial direction of the first axis (C1). In this case, according to one embodiment, it is preferable that the rotating base plate (221) has a sufficient length so that both sides in the extension direction can overlap with the aforementioned circular track (O). Through this, both sides in the extension direction of the rotating base plate (221) can be supported by a rotating roller (212) on the circular track (O).

[0122] A central frame (222) may be provided in the central portion of the rotating base plate (221). Certain power transmission members may be provided on the inner side of the central frame (222). These power transmission members may be operatively connected to the power transmission member (214) of the aforementioned support base portion (210). Accordingly, the driving force of the rotary actuator (213) can be converted into rotation of the rotary base portion (220).

[0123] Referring again to FIG. 3a, a first sub-guide rail (223a) and a second sub-guide rail (223b) may be disposed on both sides of the central frame (222). These first and second sub-guide rails (223a, 223b) may extend in a direction parallel to the extension direction of the rotating base plate (221).

[0124] The first sub-guide rail (223a) and the second sub-guide rail (223b) are each provided as a pair and can be arranged side by side. Between these pairs of sub-guide rails (223a, 223b), a plurality of sub-transfer rollers (224) can be arranged side by side in the extension direction of the rotating base plate (221). Additionally, a sub-transfer actuator (225) for driving the sub-transfer rollers (224) can be operatively coupled to one side of the first and second sub-guide rails (223a, 223b).

[0125] Accordingly, as illustrated in FIG. 3a, when the rotating base plate (221) is arranged in the first direction, the main conveying roller (120) is driven so that the pallet (F) on which the stack (20) is placed can be moved from the first conveyor device (100) to the upper side of the rotating base part (220).

[0126] When a stack (20) and a pallet (F) are placed on a rotating base part (220), a sub-transfer roller (224) of the rotating base part (220) is driven to move the stack (20) and the pallet (F) in the +Y direction and the -Y direction along the extension direction of the sub-transfer roller (224). Accordingly, the position of the stack (20) and the pallet (F) can be appropriately adjusted.

[0127] Next, as illustrated in FIG. 3b, when the rotating base part (220) rotates around the first axis (C1), the stack (20) and the pallet (F) can rotate together and be arranged in a predetermined direction. As a specific example, when the rotating base part (220) rotates, the arrangement direction of the pallet (F) can be changed from the first direction to the second direction. Thus, the stack (20) can be arranged in a direction parallel to the second direction in its length direction.

[0128] Meanwhile, the rotating base part (220) can rotate in the opposite direction to that described above around the first axis (C1), and the arrangement direction of the pallet (F) can be changed from the second direction to the first direction. The effect of changing the direction of the pallet (F) will be described later together with the stack moving device (400), the transfer device (250), and the second conveyor device (300).

[0129] Referring again to FIG. 3a, the rotating base part (220) may include first and second lifting / lowering frames (226a, 226b).

[0130] According to one embodiment, the first and second lifting frames (226a, 226b) can lift a stack (20) placed on a sub-transport roller (224). The first and second lifting frames (226a, 226b) may be provided to be movable in the up-and-down direction (Z-axis direction) with respect to a rotating base plate (221), and the first and second lifting frames (226a, 226b) can lift the stack (20) upward or lower it downward.

[0131] At this time, the pallet (F) may be provided so that the first and second lifting / lowering frames (226a, 226b) can pass through it. The first and second lifting / lowering frames (226a, 226b) pass through the pallet (F) to move up and down, and the stack (20) may be moved in the up and down direction by the first and second lifting / lowering frames (326a, 326b).

[0132] The first and second lifting frames (226a, 226b) may be positioned on each side of the central frame (222) when viewed in the direction of extension of the rotating base plate (221). Additionally, the first and second lifting frames (226a, 226b) may be positioned between the first sub-guide rail (223a) and the second sub-guide rail (223b). Through this, the first and second lifting frames (226a, 226b) can stably support both sides of the stack (20) placed on the upper side of the sub-transport roller (224).

[0133] The first and second lifting frames (226a, 226b) may be formed with a flat upper surface as illustrated. Accordingly, the first and second lifting frames (226a, 226b) may contact the lower surface of the stack (20) with a large area and support or hold the stack (20). However, the shape of the lifting frames is not particularly limited as long as they can support or hold the stack (20).

[0134] Accordingly, the first and second lifting frames (226a, 226b) are raised to a position higher than the sub-transport roller (224), and the stack (20) can be moved further upward than the upper surface of the pallet (F) or lowered again so that the stack (20) can be placed on a predetermined object. The effect of such raising and lowering of the stack (20) will be described later together with the stack moving device (400).

[0135] Stack mover and workbench

[0136] Referring to FIGS. 1 and FIGS. 4a to 4c, a workbench (1000) may be provided on one side of the rotating device (200). Additionally, a stack moving device (400) may be located between the rotating device (200) and the workbench (1000).

[0137] The stack moving device (400) can transfer the stack (20) from the rotating device (200) to the workbench (1000) and place the stack (20) on the workbench (1000). The stack moving device (400) can load and lift the stack (20) and rotate it in a predetermined direction. As the stack moving device (400) rotates the stack (20), the stacking direction of the stack (20) can be changed.

[0138] The workbench (1000) can provide a space where the stack (20) is placed and where the arrangement of the stack (20) is aligned or packaged.

[0139] Referring to FIGS. 4a and 4b, the stack moving device (400) may include a base body (410), a fork (420), and an actuator (430) for the fork.

[0140] The base body (410) may include a movable frame (411) configured to be movable between a rotating device (200) and a workbench (1000), a wheel (412) for moving the movable frame (411), a moving rail (413), and a moving actuator (414).

[0141] As illustrated in FIG. 4b, the moving rail (413) may extend from one side of the rotating device (200) toward the workbench (1000). At this time, the moving rail (413) may extend past the workbench (1000) to the opposite side.

[0142] A plurality of wheels (412) may be rotatably coupled to both sides of the movable frame (411). The wheels (412) are provided to be placed on the movable rail (413) so that the movable frame (411) can be moved in the +Y direction and the -Y direction along the extension direction of the movable rail (413). At this time, the wheels (412) may be operatively connected to a moving actuator (414) provided at the rear upper part of the movable frame (411) so as to receive driving force.

[0143] The configuration of such a base body (410) is not limited to the illustrated embodiment, and the specific configuration is not particularly limited as long as the base body (410) can reciprocate between the rotating device (200) and the workbench (1000).

[0144] Referring again to FIG. 4a, a fork (420) in the shape of a forklift may be provided on the upper side of the movable frame (411) to support and move the stack (20). At this time, the fork (420) may be rotatably coupled to the movable frame (411). Accordingly, the fork (420) can load the stack (20) and also rotate the loaded stack (20) in a predetermined direction.

[0145] According to one embodiment, the fork (420) may include a fork body (421), a first extension (422), a second extension (423), a support shaft member (424), and a detachment prevention member (425).

[0146] According to one embodiment, the fork body (421) may be provided as a frame or bar-shaped member extending in the left-right direction (X-axis direction). Additionally, the fork body (421) may be rotatably coupled to the upper part of the movable frame (411) around a second axis (C2) parallel to the extension direction (X-axis direction) of the fork body (421).

[0147] The first extension (422) may extend from the fork body (421) in the direction of the rotating device (200) (Y-axis direction) as seen in FIG. 4a. This first extension (422) may be provided to support the lower surface of the stack (20) as shown in FIG. 4a and FIG. 4b.

[0148] The first extension (422) may be provided in a pair to stably support both sides of the stack (20). Additionally, the pair of first extensions (422) may be spaced apart from each other in a direction parallel to the length direction of the stack (20) (X-axis direction). Of course, as long as the first extension (422) can stably support the stack (20), its shape is not particularly limited. For example, the first extension (422) may be provided in the form of a flat plate capable of supporting the stack (20).

[0149] A second extension (423) may be formed extending from the fork body (421) on one side of the first extension (422). The second extension (423) may be provided to support or hold the rear side of the stack (20) as illustrated in FIGS. 4a and 4b. To this end, the second extension (423) may be extended in a direction inclined at a predetermined angle with respect to the first extension (422). For example, the second extension (423) may be extended in an up-and-down direction (Z-axis direction) perpendicular to the first extension (422). However, it is not limited thereto, and the angle formed by the second extension (423) and the first extension (422) may be appropriately modified according to the shape of the stack (20).

[0150] The second extension (423) may be provided in a pair to stably support both sides of the stack (20). Additionally, the pair of second extensions (423) may be spaced apart from each other in a direction parallel to the length direction of the stack (20) (X-axis direction). However, as long as the second extension (423) can stably support the stack (20), its shape is not particularly limited.

[0151] In an optional embodiment, the first extension (422) and the second extension (423) may be provided with anti-slip members. The anti-slip members may prevent the stack (20) loaded on the fork (420) from sliding. The anti-slip members may be provided as pad-shaped members provided on the sides of the first extension (422) and the second extension (423) so as to make surface contact with the stack (20) loaded on the fork (420). The anti-slip members may be provided with a material such as rubber to apply sufficient friction.

[0152] A support shaft member (424) may be provided on the end side of the extension direction of the second extension part (423). The support shaft member (424) may be arranged along a third axis (C3) parallel to the second axis (C2), which is the rotational center axis of the fork (420). An anti-detachment part (425) in the shape of an arm extending outward may be coupled to the support shaft member (424).

[0153] According to one embodiment, the anti-detachment member (425) may be provided in pairs and spaced apart in the direction of the third axis (C3). The anti-detachment member (425) may be pivotally coupled to the support shaft member (424). The anti-detachment member (425) may rotate around the third axis (C3). Meanwhile, a predetermined actuator (not shown) for rotating or fixing the position of the anti-detachment member (425) may be provided on the outer part of the second extension member (423).

[0154] As shown in FIGS. 4a and 4b, the anti-dislodgement part (425) can function like a clamp that holds the stack (20) by rotating and fixing its position so as to be in contact with the upper surface of the stack (20). In this way, the anti-dislodgement part (425) can restrain the stack (20) loaded on the fork (420). Conversely, if the anti-dislodgement part (425) is rotated so as to be spaced apart from the upper surface of the stack (20) (based on FIG. 4a), the restraint of the stack (20) loaded on the fork (420) can be released.

[0155] The fork actuator (430) may be positioned between the movable frame (411) and the fork (420). The fork actuator (430) may be provided to rotate the fork (420) on the upper part of the movable frame (411). For example, the fork actuator (430) may be provided as a hydraulic cylinder with both ends rotatably coupled to the movable frame (411) and the second extension (423), respectively. The fork actuator (430) may be provided as a pair and positioned on each side of the movable frame (411) to stably support and rotate the fork (420).

[0156] As described above, a stack moving device (400) according to one embodiment can perform at least the following two functions. First, the stack moving device (400) can move a stack (20) placed on a rotating base part (220) toward a workbench (1000) and place the stack (20) on the upper side of the workbench (1000). Second, the stack moving device (400) can rotate the stack (20) so that the stacking direction of the solar panel (P) changes from an up-and-down direction (Z-axis direction) to a horizontal direction (Y-axis direction).

[0157] Below, the process of performing the above functions by the stack moving device (400) is described in detail.

[0158] Referring to FIGS. 3a to 4b, when a stack (20) is placed on the upper side of a sub-transport roller (224), the first and second lifting frames (326a, 326b) can be raised to a position higher than the sub-transport roller (224). At this time, the first and second lifting frames (326a, 326b) can pass through the pallet (F) and support the lower surface of the stack (20). The stack (20) is moved upward above the upper surface of the pallet (F) by the first and second lifting frames (326a, 326b), and a gap can be formed between the stack (20) and the pallet (F).

[0159] When a gap is created between the stack (20) and the pallet (F), the stack moving device (400) moves toward the rotating device (200), and the first extension (422) of the fork (420) can be inserted into the gap. As the fork body (421) rotates in a predetermined direction, the stack (20) can be separated from the pallet (F).

[0160] When the first extension part (422) is inserted between the stack (20) and the pallet (F), and the stack (20) is separated from the pallet (F), the first and second lifting / lowering frames (226a, 226b) of the rotating base part (220) can be lowered. Accordingly, the stack (20) is placed on the first extension part (422), and the stack (20) is loaded onto the fork (420) of the stack moving device (400).

[0161] Next, with reference to FIG. 4b, the fork (420) can rotate counterclockwise around the second axis (C2) to rotate the stacked stack (20). Through this, the stacking direction of the solar panels (P) can be rotated from the vertical direction (Z-axis direction) to the horizontal direction (Y-axis direction).

[0162] And, with reference to FIG. 4b, the anti-detachment part (425) of the fork (420) can rotate clockwise around the third axis (C3) to restrain the stack (20). Accordingly, it is possible to prevent the stack (20) from detaching outward during the rotation of the fork (420).

[0163] Finally, referring to FIGS. 4b and 4c, the stack moving device (400) loaded with the stack (20) can be moved in the -Y direction toward the workbench (1000). Then, when the moving frame (411) enters between the workbench (1000), the fork (420) is rotated so that the stack (20) can be placed on the upper side of the workbench (1000).

[0164] As described above, the stack moving device (400) of the packaging system (10) for a solar panel stack according to one embodiment of the present invention can rotate the stack (20) in a predetermined direction and place it on a workbench (1000). Accordingly, the stack (20) can be appropriately positioned and arranged so that it can be packaged by the cover installation device (500), alignment device (600), and packaging device (800) described later.

[0165] Meanwhile, referring to FIGS. 4b and 4c, a workbench (1000) according to one embodiment may be spaced apart from a rotating device by a predetermined distance. At this time, the workbench (1000) may be composed of a pair of blocks with a flat upper surface so that a stack (20) can be placed thereon. The pair of blocks may be spaced apart from each other in the left-right direction (X-axis direction). The pair of blocks may be spaced apart from each other so that the moving frame (411) of the stack moving device (400) can enter between them.

[0166] At this time, referring to FIG. 4b, a predetermined elastic member (S) may be provided on the lower side of the workbench (1000). The elastic member (S) may be configured to elastically support a stack (20) placed on the upper side of the workbench (1000). Additionally, the elastic member (S) may be provided in multiple numbers between the workbench (1000) and the floor surface as needed.

[0167] According to one embodiment, the elastic member (S) can prevent damage to the solar panel (P) by absorbing the impact applied to the stack (20) when the stack moving device (400) places the stack (20) on the workbench (1000).

[0168] Additionally, the elastic member (S) can elastically support the stack (20) so that it moves or rotates in the front-rear direction (a direction parallel to the Y-axis) or the left-right direction (a direction parallel to the X-axis). Accordingly, the elastic member (S) can prevent damage to the stack (20) that may occur during the alignment process by the alignment device (600) described later, and can also assist in the alignment operation of the alignment device (600).

[0169] <Second Conveyor Device and Transfer Device>

[0170] Referring to FIGS. 1, FIGS. 3b, FIGS. 4c and FIGS. 5, the packaging system (10) of a solar panel stack may include a transfer device (250) and a second conveyor device (300).

[0171] The transfer device (250) can grasp the pallet (F) and move it along a preset path. The transfer device (250) may be configured to lift the pallet (F) transported by the first conveyor device (100) and transfer it to the second conveyor device (300).

[0172] According to one embodiment, the transfer device (250) may include a gantry unit (251) extending from the side of the first conveyor device (100) to the side of the second conveyor device (300), and a gripper unit (252) that moves along the gantry unit (251) to grasp a pallet (F).

[0173] Specifically, for example, the gantry unit (251) may be provided in a shape extending in the second direction from the upper part of the first conveyor device (100) to the upper part of the second conveyor device (300). The gantry unit (251) can linearly move the pallet (F) held by the gripper unit (252) in the left-right direction (X-axis direction), that is, in the second direction.

[0174] A gripper unit (252) may be provided to grip or place a pallet (F). The gripper unit (252) may be provided to be movable in the vertical direction (Z-axis direction) so as to lift the gripped pallet (F) or place it at a predetermined position.

[0175] Referring to FIGS. 3b and 4c, the rotating device (200) can rotate the rotating base part (220) in one direction to arrange the stack (20) and pallet (F) in the second direction. After that, the stack moving device (400) can pick up the stack (20) placed on the upper side of the rotating base part (220) and move it toward the workbench (1000) to place it. After the stack moving device (400) picks up the stack (20), only an empty pallet (F) can be placed on the upper side of the rotating base part (220).

[0176] Next, as illustrated in FIG. 5, the rotating device (200) rotates the rotating base part (220) in the opposite direction of the first direction so that the arrangement direction of the pallet (F) can be changed from the second direction to the first direction. Thus, the pallet (F) can be arranged in a direction parallel to the first direction in the longitudinal direction.

[0177] The transfer device (250) can pick up a pallet (F) from the rotating base section (220) and transfer it to the second conveyor device (300). Specifically, the gripper unit (252) of the transfer device (250) can be positioned on the upper side of the rotating base section (220) by means of a gantry unit (251). The gripper unit (252) can grasp and lift the pallet (F), then move linearly in the second direction to be positioned on the upper side of the second conveyor device (300). The gripper unit (252) can descend to place the pallet (F) at the entrance end of the second conveyor device (300).

[0178] The second conveyor device (300) may be positioned spaced apart from the first conveyor device (100). The second conveyor device (300) may be positioned parallel to the first conveyor device (100) and may transport pallets (F) in the opposite direction to the first conveyor device (100). That is, the second conveyor device (300) may be provided to discharge pallets (F) to the outside of the packaging system (10) of the solar module stack.

[0179] The second conveyor device (300) may be formed to extend in the front-rear direction (Y-axis direction) based on the drawing. The second conveyor device (300) may be provided with one or more conveyor belts extending to a predetermined length. For example, the second conveyor device (300) may be provided with a single long conveyor belt extending in the Y-axis direction, or with a plurality of short conveyor belts arranged in parallel along the Y-axis. In FIG. 5, the second conveyor device (300) is illustrated as being provided with a plurality of conveyor belts, but it may not be limited thereto.

[0180] According to one embodiment, the second conveyor device (300) may be provided with a first conveyor belt (310) and a second conveyor belt (320). The first conveyor belt (310) and the second conveyor belt (320) may be provided to extend in the forward and backward direction (Y-axis direction) to transport a pallet (F) in the +Y direction.

[0181] The first conveyor belt (310) may include a first guide rail (311), a first belt roller (312), and a first belt actuator (313).

[0182] The first conveyor belt (310) may be provided with a first guide rail (311) having a width equal to or wider than the width of the pallet (F). A plurality of first belt rollers (312) may be provided inside the first guide rail (311). At this time, the plurality of first belt rollers (312) may be arranged along the extension direction (Y-axis direction) of the first guide rail (311). A pallet (F) may be placed on the upper side of the first belt rollers (312). As shown in FIG. 5, the pallet (F) may be placed so that its long side is arranged parallel to the first direction.

[0183] When the first belt roller (312) is driven, the pallet (F) placed thereon can be transported along the extension direction of the first belt roller (312) in the opposite direction of the first direction. At this time, the first belt roller (312) can be operatively connected to the first belt actuator (313) to receive rotational driving force.

[0184] Meanwhile, the second conveyor belt (320) may include a second guide rail (321), a second belt roller (322), and a second belt actuator (323).

[0185] The second conveyor belt (320) is configured such that a pair of second guide rails (321) are spaced apart in the left-right direction (X-axis direction), and the outermost width of the pair of second guide rails (321) may be equal to or wider than the width of the pallet (F).

[0186] The second conveyor belt (320) can form the exit end of the second conveyor device (300). Thus, at the end of the second conveyor belt (320), pallets (F) discharged from the system (10) must be received and transported. As a result, the second guide rail (321) is provided in the shape of a pair of rails spaced apart from each other, and a transport means such as a forklift can be docked.

[0187] A plurality of second belt rollers (322) may be provided on the inner side of the second guide rail (321). At this time, the plurality of second belt rollers (322) may be arranged along the extension direction (Y-axis direction) of the second guide rail (321). A pallet (F) may be placed on the upper side of the second belt rollers (322) to pass through.

[0188] When the second belt roller (322) is driven, the pallet (F) transported by the first conveyor belt (310) can be continuously transported by being transferred to the second conveyor belt (320). At this time, the second belt roller (322) can be operatively connected to the second belt actuator (323) to receive rotational driving force.

[0189] As described above, the transfer device (250) and the second conveyor device (300) can discharge the pallet (F) separated from the stack (20) by the stack transfer device (400).

[0190] The packaging system (10) of the solar panel stack may be configured to circulate the pallet (F) by means of a first conveyor device (100), a transfer device (250), and a second conveyor device (400).

[0191] Hereinafter, with reference to other drawings, a cover installation device (500), an alignment device (600), a box guide device (700), and a packaging device (800) of a solar panel stack packaging system (10) according to one embodiment of the present invention will be described.

[0192] FIGS. 6A and 6B are schematic diagrams illustrating the state in which the cover installation device (500), alignment device (600), and box guide device (700) of FIG. 1 are positioned on the side of a stack (20) placed on a workbench (1000). FIG. 6C is a block diagram schematically illustrating the cover installation device (500), alignment device (600), and controller (900) of the packaging system of the solar panel stack shown in FIG. 1, and FIG. 6D is a plan view schematically illustrating the state in which the cover installation device (500), alignment device (600), box guide device (700), and packaging device (800) of FIG. 1 are positioned on the side of a stack (20) placed on a workbench. FIG. 7a is a schematic diagram illustrating the state in which the packaging device (800) of FIG. 1 packages a stack (20) placed on a workbench into a box (50); FIG. 7b is a perspective view from below of a part of the gripper (810) and robot arm (820) of the packaging device shown in FIG. 7a; and FIG. 7c is a block diagram schematically illustrating the packaging device (800) and controller (900) of the packaging system for a solar panel stack shown in FIG. 1.

[0193] <Cover Installation Device>

[0194] Referring to FIGS. 1 and FIGS. 6a to 6c, a cover installation device (500) according to one embodiment of the present invention is a device for installing a corner cover (30) on a side corner (24) of a stack (20) placed on a workbench (1000). In this embodiment, the side corner (24) of the stack (20) may be defined as a corner extending in an upward and downward direction from the side of the stack (20).

[0195] A cover installation device (500) according to one embodiment may include a cover support (510), an actuator (520) for installing a cover, a connecting member (530) for the cover installation device, and a sensor (540) for installing a cover. In this case, the cover support (510) may be configured to move in a predetermined direction and to install a corner cover (30) on the corner of a stack (20).

[0196] Referring to FIGS. 6a to 6c, a cover support (510) according to one embodiment may include a cover support plate (511) and a cover suction part (512). The cover support plate (511) may be provided as a frame that extends in the vertical direction (Z-axis direction) and has a side that is bent so that a corner cover (30) can be seated thereon. Additionally, a cover suction part (512) configured to grip or release the corner cover (30) by negative pressure may be provided on the side of the cover support plate (511).

[0197] At this time, it is preferable that the vertical length (Z-axis direction) of the cover support plate (511) is shorter than the vertical length (Z-axis direction) of the corner cover (30). Also, it is preferable that the cover suction part (512) be configured to grasp or release one side of the corner cover (30) in the extension direction. As a specific example, the cover suction part (512) according to one embodiment is configured to grasp or release the upper part of the corner cover (30) as shown in FIG. 6a. Accordingly, the lower part of the corner cover (30) can be extended to the lower side of the cover support (510) and exposed to the outside.

[0198] The above configuration is intended to allow the alignment frame (610) of the alignment device (600), which will be described later, to support the other side of the corner cover (30). As a specific example, as shown in FIG. 6b, the lower part of the corner cover (30) exposed on the outside of the cover support (510) can be supported by the alignment frame (610).

[0199] Meanwhile, according to one embodiment, the cover support (510) may be provided as a pair so that corner covers (30) can be installed on the side corners (24) provided on both sides of the side (23) of the stack (20). These pair of cover supports (510) may be spaced apart from each other in a direction parallel to the side (23) of the stack (20) (Y-axis direction).

[0200] Additionally, the cover support (510) is configured to be movable so as to move the corner cover (30) or install the corner cover (30) on the stack (20). More specifically, the cover support (510) may be configured to be movable in the left-right direction (X-axis direction) so as to move toward the stack (20) or be spaced apart from the stack (20). Furthermore, the cover support (510) may be configured to be movable in the front-back direction (X-axis direction) so as to be positioned correspondingly to the side corner (24) of the stack (20).

[0201] Referring again to FIGS. 6a and 6c, a cover installation actuator (520) may be provided for operating the cover support (510) as described above. The cover installation actuator (520) may provide a driving force to move the cover support (510).

[0202] At this time, the cover installation actuator (520) may include a first cover installation actuator (521) for moving the cover support (510) in the left-right direction (X-axis direction) and a second cover installation actuator (522) for moving the cover support (510) in the front-back direction (Y-axis direction).

[0203] Additionally, a connecting member (530) for a cover installation device may be provided to operatively connect the cover support (510) and the cover installation actuator (520). The connecting member (530) for a cover installation device may be composed of predetermined power transmission members, such as a chain, belt, or gear, provided between the cover support (510) and the cover installation actuator (520).

[0204] Accordingly, the cover support (510) can be moved in the forward and backward direction (Y-axis direction) so that the corner cover (30) held by the cover support (510) and the side corner (24) of the stack (20) face each other, and can also be moved in the left and right direction (X-axis direction) so that the corner cover (30) can be fitted onto the side corner (24).

[0205] Meanwhile, information regarding the stack (20) may be required to control the operation of the cover support (510) described above. For example, the information may be the relative position between the stack (20) and the cover support (510). To this end, a cover installation sensor (540) according to one embodiment may be configured to acquire information regarding the position of the stack (20).

[0206] As a specific example, a cover installation sensor (540) according to one embodiment may include a first cover installation sensor (541) for obtaining information regarding the distance in the left-right direction (X-axis direction) between the cover support (510) and the stack (20), and a second cover installation sensor (542) for obtaining information regarding the length in the width direction (Y-axis direction) of the side (23) of the stack (20). Such a cover installation sensor (540) may be composed of a laser pointer or the like that can measure distance using a laser beam directed toward the stack (20).

[0207] Through this, the cover installation device (500) according to one embodiment can be configured to control the left-right direction (X-axis direction) operation of the cover support (510) based on information acquired by the first cover installation sensor (541), and can be configured to control the front-back direction (Y-axis direction) operation of the cover support (510) based on information acquired by the second cover installation sensor (542).

[0208] Meanwhile, referring to FIG. 6d, a cover installation device (500) according to one embodiment of the present invention may be provided in multiple units to efficiently install a corner cover (30) on a side corner (24) of a stack (20).

[0209] More specifically, the plurality of cover installation devices (500) may include a first cover installation device (500a) and a second cover installation device (500b). In this case, the first cover installation device (500a) and the second cover installation device (500b) may each be provided on both sides in the longitudinal direction of the stack (20).

[0210] Accordingly, the first cover installation device (500a) can install a corner cover (30) on the side corners (24) provided on both sides of the first side (23a), and the second cover installation device (500b) can install a corner cover (30) on the side corners (24) provided on both sides of the second side (23b).

[0211] Alignment device

[0212] Meanwhile, referring again to FIGS. 6a to 6c, a packaging system (10) for a solar panel stack according to one embodiment of the present invention may include an alignment device (600). The alignment device (600) is configured to align a stack (20) placed on a workbench (1000) in a stacking direction (Y-axis direction).

[0213] To this end, an alignment device (600) according to one embodiment may include an alignment frame (610), an alignment actuator (620), a connecting member (630) for the alignment device, and an alignment sensor (640). Additionally, the alignment frame (610) may include an alignment portion (611), a first stack support portion (612), and a second stack support portion (613).

[0214] The alignment portion (611) may be extended in a direction parallel to the stacking direction (Y-axis direction). Additionally, a plane may be provided on the side of the alignment portion (611) that faces the side (23) of the stack (20). At this time, the alignment portion (611) may have a length that is longer than or equal to the width direction (Y-axis direction) length of the stack (20).

[0215] In addition, the alignment member (611) according to one embodiment may be configured to press the side (23) of the stack (20) in a direction perpendicular to the stacking direction (Y-axis direction) (X-axis direction) in order to align the stack (20). Here, the flat surface provided on the side of the alignment member (611) may press the side (23) of the stack (20) over a wide area.

[0216] At this time, since the alignment part (611) has a length that is longer than or equal to the width direction (Y-axis direction) of the stack (20), it can press all solar panels (P) from the solar panel (P) stacked at one end of the stack (20) to the solar panel (P) stacked at the other end.

[0217] When the alignment unit (611) presses the side (23) of the stack (20), the solar panels (P) protruding to the left (positive direction of the X-axis) among the plurality of solar panels (P) forming the stack (20) are pushed in the -X direction, and accordingly, the plurality of solar panels (P) can be aligned side by side in the stacking direction (Y-axis direction).

[0218] Meanwhile, a first stack support member (612) and a second stack support member (613) may be provided on each side of the extension direction (Y-axis direction) of the alignment member (611). The first stack support member (612) and the second stack support member (613) may be formed by bending to support the side corner (24) of the stack (20) aligned by the alignment member (611). Accordingly, the stack (20) can be supported by the stack support members (612, 613) and maintain an aligned state.

[0219] Meanwhile, the alignment frame (610) according to one embodiment is configured to be movable so as to be able to press the side (23) of the stack (20) as described above. More specifically, the alignment frame (610) is configured to be movable in the left and right direction (X-axis direction) so as to be moved toward the stack (20) or separated from the stack (20).

[0220] At this time, the alignment frame (610) according to one embodiment may be configured to be movable along an up-down direction (Z-axis direction) parallel to the extension direction of the side edge (24). Through this, the alignment frame (610) according to one embodiment can align a plurality of solar panels (P) by pushing the side (23) of the stack (20) in an up-down direction (Z-axis direction).

[0221] An alignment actuator (620) is provided for the operation of the alignment frame (610) as described above. That is, the alignment actuator (620) can be configured to provide a driving force to move the alignment frame (610).

[0222] At this time, the alignment actuator (620) may include a first alignment actuator (621) for moving the alignment frame (610) in the left-right direction (X-axis direction) and a second alignment actuator (622) for moving the alignment frame (610) in the up-down direction (Z-axis direction).

[0223] In addition, according to one embodiment, a connecting member (630) for an alignment device may be provided to operatively connect an alignment frame (610) and an alignment actuator (620). The connecting member (630) for an alignment device may be composed of certain power transmission members, such as a chain, belt, or gear, provided between the alignment frame (610) and the alignment actuator (620).

[0224] Meanwhile, information regarding the stack (20) may be required to control the operation of the alignment frame (610) described above. For example, the information may be the relative position between the stack (20) and the alignment frame (610). To this end, an alignment sensor (640) according to one embodiment may be configured to acquire information regarding the position of the stack (20).

[0225] As an example, an alignment sensor (640) according to one embodiment may be configured to obtain information regarding the distance in the left-right direction (X-axis direction) between the alignment frame (610) and the stack (20). Such an alignment sensor (640) may be configured as a laser pointer or the like, capable of measuring the distance using a laser beam directed toward the stack (20).

[0226] Through this, the alignment device (600) according to one embodiment can be configured to control the left-right direction (X-axis direction) operation of the alignment frame (610) based on information acquired by the alignment sensor (640).

[0227] Meanwhile, referring to FIG. 6d, the alignment device (600) may be provided in multiple units to efficiently align the stack (20). As a specific example, the multiple alignment devices (600) may include a first alignment device (600a) and a second alignment device (600b). Furthermore, the first alignment device (600a) and the second alignment device (600b) may be placed on each side in the longitudinal direction of the stack (20).

[0228] Accordingly, the alignment frame (610) of the first alignment device (600a) can align the solar panels by pressing the first side (23a) of the stack (20), and the alignment frame (610) of the second alignment device (600b) can align the solar panels by pressing the second side (23b) opposite the first side (23a).

[0229] Box guide device

[0230] Referring again to FIGS. 6a and 6b, a packaging system for a solar panel stack according to one embodiment may include a box guide device (700). In one embodiment, the box guide device (700) is a device for guiding a box that is moved by a packaging device (800) described later.

[0231] To this end, a box guide device (700) according to one embodiment may include a guide bar (710) and an actuator (720) for box guiding. In addition, the guide bar (710) may include a connecting part (711), a guide part (712), and a locking part (713).

[0232] In one embodiment, the connecting portion (711) may be provided as an arm-shaped member extending from the outer portion of the alignment frame (610). In this case, the connecting portion (711) may consist of a first connecting portion adjacent to the alignment frame (610) and a second connecting portion located further from the alignment frame (610) than the first connecting portion.

[0233] In one embodiment, the first connecting portion extends in one direction parallel to the side (23) of the stack (20), and one end of the extension direction may be pivotally connected to the outer part of the alignment frame (610). Accordingly, the guide bar (710) can rotate around a fifth axis (C5) that extends in a direction parallel to the left-right direction (X-axis direction).

[0234] According to one embodiment, a second connecting portion may be provided at the other end of the first connecting portion. The second connecting portion may have a bar shape that extends obliquely from the first connecting portion toward the stack (20).

[0235] In addition, in one embodiment, a guide portion (712) may be provided on the end side of the second connecting portion of the connecting portion (711). As shown in FIG. 6b, the guide portion (712) may be formed to extend along one direction so as to be placed in an up-and-down direction (Z-axis direction) on the side (23) of the stack (20).

[0236] Next, a locking part (713) that is bent at an angle to one side may be provided on the end side of the extension direction of the guide part (712) according to one embodiment. Here, the locking part (713) according to one embodiment may be composed of a material having a predetermined elasticity so that the bent part can be elastically straightened.

[0237] At this time, the catch portion (713) may be formed to extend a predetermined length so that it can protrude outward from the circumference of the side (23), for example, in the upward direction (positive direction of the Z-axis), when the guide portion (712) is placed on the side (23) of the stack (20) as shown in FIG. 6b.

[0238] In addition, in one embodiment, a catch (713) positioned to protrude upward on the side (23) of the stack (20) may be positioned adjacent to the upper edge (22) of the upper surface (21) of the stack (20).

[0239] The configuration regarding the relative arrangement of the guide bar (710) and the stack (20) is intended to effectively prevent interference or jamming between the box (50) (illustrated in FIG. 1) and the stack (20) by having the guide bar (710) guide the box (50) (illustrated in FIG. 1) at a position adjacent to the upper edge (22) of the stack (20).

[0240] This is because the phenomenon of the box and the stack (20) interfering with or getting caught on each other is likely to occur at the upper edge (22) of the pointed stack (20). The process of the guide bar (710) guiding the box will be described in detail later together with FIGS. 16a to 18c.

[0241] Meanwhile, according to one embodiment, a guide actuator (720) may be provided to provide a driving force for pivoting the guide bar (710). To this end, the guide actuator (720) may be spaced apart from the outside of the alignment frame (610) on the fifth axis (C5).

[0242] Referring again to FIGS. 6a and 6b, in one embodiment, a guide bar (710) and a guide actuator (720) may be provided as a pair on both sides of the alignment portion (611) in the extension direction (Y-axis direction) centered on the stack (20). Accordingly, a pair of guide bars (710) may be moved and positioned to be adjacent to a pair of upper surface corners (22) provided on both sides of the stack (20).

[0243] Thus, the packaging system of a solar panel stack according to one embodiment can minimize the phenomenon where the box gets caught or interferes with the stack (20) by means of the box guide device (700), so that the packaging process can be performed without damaging the stack (20) and the box.

[0244] Meanwhile, the alignment device (600) according to one embodiment of the present invention may be provided in multiple numbers to effectively guide the box (50) (shown in FIG. 1).

[0245] As a specific example, a plurality of box guide devices (700) may include a first box guide device (700a) and a second box guide device (700b). In this case, the first box guide device (700a) and the second box guide device (700b) may each be positioned on both sides in the longitudinal direction of the stack (20).

[0246] Accordingly, the guide bar (710) of the first box guide device (700a) can be positioned adjacent to the upper surface corner (22) provided on both sides of the first side (23a) of the stack (20) to guide the box (50) (shown in FIG. 1), and the guide bar (710) of the second box guide device (700b) can be positioned adjacent to the upper surface corner (22) provided on both sides of the second side (23b) of the stack (20) to guide the box (50) (shown in FIG. 1).

[0247] Meanwhile, in one embodiment, the guide bar (710) is configured to be coupled to the alignment frame (610), but the guide bar (710) may be coupled to other components as needed or provided to be moved separately without being coupled to other components.

[0248] Packaging Device and Controller

[0249] Referring to FIG. 6D and FIG. 7a to 7c, a packaging system for a solar panel stack according to one embodiment of the present invention may include a packaging device (800).

[0250] The packaging device (800) may be configured to place the stack (20) into the box (50) or place the first cover member (40) on the stack (20).

[0251] According to one embodiment, the packaging device (800) may include a first packaging module (800a) and a second packaging module (800b) positioned facing each other on both sides of a workbench.

[0252] A first packaging module (800a) is positioned adjacent to one side of a workbench (1000) and can cover one side of a stack (20) with a cover member (40), and a second packaging module (800b) is positioned adjacent to the other side of the workbench (1000) and can grip a box (50) to insert the box (50) into the stack (20).

[0253] However, the first packaging module (800a) and the second packaging module (800b) are configured identically in terms of their configuration and the functions and shapes of each component, so the following description will be based on a single packaging device (800).

[0254] The packaging device (800) may include a gripper (810), a robot arm (820), an actuator (830) for the robot arm, and a packaging sensor (840).

[0255] First, a gripper (810) according to one embodiment may be configured to pick up or place a box (50) for packaging a stack (20) or a first cover member (40) interposed between the bottom surface of the box (50) and the stack (20).

[0256] As an example, referring to FIG. 7b, a gripper (810) according to one embodiment may include a base frame portion (811), a first box grip frame portion (812), a second box grip frame portion (813), a box suction portion (814), a cover member grip frame portion (815), and a cover member suction portion (816).

[0257] In one embodiment, the base frame portion (811) may be provided as a collection of frames to provide a base on which other components of the gripper (810) can be installed. Additionally, the upper portion of the base frame portion (811) may be coupled to a robot arm (820) described later. Accordingly, the gripper (810) may be rotated or moved by the robot arm (820).

[0258] At this time, it is preferable that the base frame portion (811) be provided with a sufficient size so that a box (50) or a first cover member (40) can be placed on one side. In one embodiment, the length of the base frame portion (811) in the front-rear direction (Y-axis direction) is provided to be greater than the length of the box (50) in the front-rear direction (Y-axis direction).

[0259] Meanwhile, referring again to FIGS. 7a and 7b, in one embodiment, a first box grip frame part (812) and a second box grip frame part (813) may be respectively provided on both sides in the width direction (Y-axis direction) of the base frame part (811). The first box grip frame part (812) and the second box grip frame part (813) are configured to support the box suction part (814) described later.

[0260] In one embodiment, the first box grip frame portion (812) and the second box grip frame portion (813) may be extended parallel to each other from the base frame portion (811) in one direction, for example, in the -Z direction.

[0261] At this time, it is preferable that the first box grip frame part (812) and the second box grip frame part (813) be spaced sufficiently apart in the width direction (Y-axis direction) of the base frame part (811) so that a box (50) can be placed between them. Accordingly, as shown in FIG. 7a, the end of the first box grip frame part (812) and the end of the second box grip frame part (813) can each be placed on opposite sides of the box (50).

[0262] Furthermore, according to one embodiment, the first box grip frame part (812) and the second box grip frame part (813) may each be provided as a pair. And, the pair of the first box grip frame part (812) and the second box grip frame part (813) may be spaced apart from each other in a direction parallel to the side of the box (50) (X-axis direction). Accordingly, more box suction parts (814) may be installed on the first box grip frame part (812) and the second box grip frame part (813).

[0263] Referring again to FIG. 7a and FIG. 7b, in one embodiment, a box suction part (814) may be provided in the first box grip frame part (812) and the second box grip frame part (813). The box suction part (814) is configured to grip or release the first box grip frame part (812) and the second box grip frame part (813) by negative pressure. To this end, the box suction part (814) may be composed of a suction plate that can come into contact with the outer surface of the box (50) and an air pump for applying negative pressure to the suction plate.

[0264] In one embodiment, these box suction parts (814) may be provided at the end sides of the first box grip frame part (812) and the second box grip frame part (813), respectively. Additionally, the box suction parts (814) may be positioned so that the suction plate can face the box (50) placed between the first box grip frame part (812) and the second box grip frame part (813).

[0265] Meanwhile, referring to FIG. 7b, a frame part (815) for gripping a cover member may be provided on one side, for example, the lower side, of the base frame part (811) according to one embodiment. The frame part (815) for gripping a cover member is configured to support the cover member adsorption part (816) described later.

[0266] The frame portion (815) for gripping the cover member is coupled to the base frame portion (811) and may include a coupling portion that extends forward and backward. Additionally, an adsorption support portion may be provided at each end of the extension direction of the coupling portion. At this time, both sides of the adsorption support portion may extend toward the first box grip frame portion (812) and the second box grip frame portion (813), respectively.

[0267] In addition, according to one embodiment, a plurality of cover member suction parts (816) may be provided in the suction part support portion of the frame part (815) for gripping the cover member. The cover member suction part (816) is configured to grip or release a first cover member (40) placed on one side of the frame part (815) for gripping the cover member by negative pressure. To this end, the cover member suction part (816) may be composed of the same components (suction cup and air pump) as the box suction part (814) described above.

[0268] Accordingly, the gripper (810) according to one embodiment can pick up or place the first cover member (40) or the box (50). Meanwhile, the aforementioned first box gripping frame part (812), second box gripping frame part (813), and box suction part (814) may be named box gripping parts (812, 813, 814). Also, the cover member gripping frame part (815) and cover member suction part (816) may be named cover member gripping parts (815, 816).

[0269] Referring again to FIGS. 7a to 7c, a packaging device (800) according to one embodiment may include a robot arm (820). In one embodiment, the robot arm (820) may have one side supported on a floor surface and the other side configured as a free end. Additionally, a base frame portion (811) of the aforementioned gripper (810) may be coupled to the free end side of the robot arm (820).

[0270] In one embodiment, the robot arm (820) is configured to move or rotate the box (50) or the first cover member (40) held by the gripper (810) so as to tilt it. To this end, the robot arm (820) according to one embodiment may be a multi-joint robot arm formed by combining a plurality of robot arms (R1 to R5) in a row.

[0271] Additionally, a plurality of robot arms (R1 to R5) can be rotatably coupled to each other around a predetermined operating axis (C7a to C7e). Accordingly, the box (50) or the first cover member (40) held by the gripper (810) can move, rotate, and tilt in the X-axis, Y-axis, and Z-axis directions.

[0272] Meanwhile, an actuator (830) for a robot arm may be provided to operate the robot arm (820) according to one embodiment. This actuator (830) for a robot arm may be configured to rotate at least one of a plurality of robot arms (R1 to R5) around at least one of a predetermined operating axis (C7a to C7e). To this end, the actuator (830) for a robot arm may be provided in multiple numbers corresponding to each operating axis (C7a to C7e).

[0273] Next, referring to FIG. 7c, a sensor (840a, 840b) for a robot arm may be provided to obtain information for controlling the operation of a robot arm (820a, 800b) according to one embodiment. The information may be information regarding the current position, speed, rotation angle or speed of the robot arm (820a, 820b), or the relative position between the gripper (810a, 810b), the box (50), and the stack (20) placed on the workbench (1000), and the sensor (840a, 840b) for the robot arm may be composed of a plurality of sensors for obtaining such information.

[0274] Accordingly, the first packaging module (800a) of the packaging device (800) can be configured to place the first cover member (40) on the upper surface (21) of the stack (20) placed on the workbench (1000) by operating the first gripper (810a) to pick up the first cover member (40), the first robot arm (820a) to move the first cover member (40) picked up by the first gripper (810a) to the upper surface (21) of the stack (20), and the first gripper (810a) to release the first cover member (40).

[0275] Additionally, the second packaging module (800b) of the packaging device (800) can be configured so that the second gripper (810b) picks up the box (50), and the second robot arm (820b) moves the box (50) picked up by the second gripper (810b) so that the stack (20) placed on the workbench (1000) is put into the box (50).

[0276] Referring again to FIG. 1 and FIG. 2, when a stack (20) is placed into a box (50) by a packaging device (800) according to one embodiment of the present invention, a solar panel packaging body can be formed by sealing an open side (51) of the box (50) with a second cover member (60).

[0277] Meanwhile, referring to FIGS. 1, FIG. 6c and FIG. 6, a packaging system (10) for a solar panel stack according to one embodiment of the present invention may include a controller (900). The controller (900) may be configured to control the aforementioned first conveyor device (100), rotating device (200), transfer device (250), second conveyor device (300), stack moving device (400), cover installation device (500), alignment device (600), box guide device (700), and packaging device (800).

[0278] Such a controller (900) may be implemented using an electrical circuit processed by hardware, or by a processor, central processing unit (CPU), controller, arithmetic logic unit, operation logic circuit, digital signal processing unit, microcomputer, FPGA, system on chip (SoC), programmable logic unit, microprocessor, or any device capable of performing the functions described below.

[0279] A first conveyor device (100), a rotating device (200), a transfer device (250), a second conveyor device (300), a stack moving device (400), a cover installation device (500), an alignment device (600), a box guide device (700), and a packaging device (800), controlled by a controller (900) according to one embodiment, can automatically perform the aforementioned operations.

[0280] As such, the packaging system (10) of a solar panel stack according to one embodiment can be configured such that each component (100 to 900) sequentially and consistently repeats the process of packaging the stack (20), thereby reducing the cost of manufacturing and packaging the solar panel (P), and also enabling a large amount of solar panels (P) to be packaged uniformly with high quality.

[0281] Packaging Method for Solar Panel Stacks

[0282] Hereinafter, a method for packaging a solar panel stack according to an embodiment of the present invention will be described with reference to different drawings. The method for packaging a solar panel stack according to an embodiment of the present invention is a method for packaging a stack formed by stacking a plurality of solar panels into a box. At this time, the method for packaging a solar panel stack according to an embodiment of the present invention can be performed by the solar panel stack packaging system according to an embodiment of the present invention described above.

[0283] FIG. 8a is a flowchart of a method for packaging a solar panel stack according to an embodiment of the present invention. FIG. 8b is a flowchart subdividing step S600 of a method for packaging a solar panel stack according to an embodiment of the present invention. FIG. 8c is a flowchart subdividing step S660 of a method for packaging a solar panel stack according to an embodiment of the present invention.

[0284] Referring to FIG. 1 and FIG. 8a, a method for packaging a solar panel stack according to one embodiment of the present invention may include the steps of preparing a pallet on which the stack is placed (S100), rotating and aligning the stack and the pallet (S200), moving the stack to a workbench (S300), rotating only the pallet back (S400), discharging the pallet (S500), and packaging the stack into a box (S600).

[0285] The step of preparing a pallet on which a stack is placed (S100) may further include the step of forming a stack by stacking a plurality of solar panels (P) on the pallet (S110) and the step of introducing the pallet on which the stack is placed (S120).

[0286] The step (S100) of preparing a pallet on which a stack is placed can be performed by the first conveyor device (100) of the packaging system (10) of a solar panel stack according to one embodiment receiving and transporting a pallet (F) on which a stack (20) is placed. The detailed description of this step (S100) is replaced by the description of the first conveyor device (100) according to one embodiment of the present invention.

[0287] The step (S200) of rotating and aligning the stack and the pallet may be performed by a rotating device (200) of a solar panel stack packaging system (10) according to one embodiment rotating the stack (20) to change the arrangement direction. The detailed description of this step (S200) is replaced by the description of the rotating device (200) according to one embodiment of the present invention.

[0288] The step (S300) of moving the stack to a workbench may be performed by a stack moving device (400) of a solar panel stack packaging system (10) according to one embodiment picking up the stack (20) from a rotating device (200) and rotating and moving the stack (20). The detailed description of this step (S300) is replaced by the description of the rotating device (200) and the stack moving device (400) according to one embodiment of the present invention.

[0289] The step (S400) of rotating only the pallet and returning it may be performed by rotating the rotating device (200) of the solar panel stack packaging system (10) according to one embodiment to change the arrangement direction of the pallet (F), and by the transfer device (250) picking up and moving the pallet (F). The detailed description of this step (S400) is replaced by the description of the rotating device (200) and the transfer device (250) according to one embodiment of the present invention.

[0290] The step of discharging the above pallet (S500) can be performed by the second conveyor device (300) of the packaging system (10) of the solar panel stack according to one embodiment receiving the pallet (F) from the transfer device (250) and transporting it to the outside. The detailed description of this step (S500) is replaced by the description of the transfer device (250) and the second conveyor device (300) according to one embodiment of the present invention.

[0291] The step of packaging the stack into a box (S600) may include the step of installing corner covers on the corners of the stack (S610), the step of aligning the stack (S620), the step of separating the cover support from the stack (S630), the step of placing a first cover member on the upper surface of the stack (S640), the step of placing a guide bar on the side of the stack (S650), the step of placing the stack into a box (S660), and the step of covering the opening of the box with a second cover member (S670).

[0292] Since the explanation of this step (S600) is limited by the drawings and descriptions seen earlier, we intend to explain it in more detail through the following drawings.

[0293] FIG. 9 is a drawing for explaining the process of the cover installation device (500) of FIG. 1 installing a corner cover (30) on the side of a stack placed on a workbench (1000). FIG. 10a is a drawing showing the state in which the alignment device (600) of FIG. 1 is operated to align a stack (20) placed on a workbench, and FIG. 10b is an enlarged plan view of section A1 of FIG. 10a. FIG. 11a and FIG. 11b are drawings for explaining the process of the alignment device (600) of FIG. 1 aligning a stack placed on a workbench, and FIG. 11c is an enlarged plan view of section A2 of FIG. 11a. FIG. 12 is a drawing showing the state in which the cover installation device (500) of FIG. 1 is separated from the stack (20) placed on the workbench (1000). FIG. 13 is a drawing showing the state in which the packaging device (800) of FIG. 1 places a cover member on the upper surface of a stack placed on a workbench (1000). FIG. 14 is a drawing showing the state in which the guide bar of the box guide device of FIG. 1 is placed on the side of a stack placed on a workbench. At this time, the reference numerals 21 and 22 shown in FIG. 14 should be understood to refer to the upper surface and the upper surface corner of the stack, respectively.

[0294] Referring to FIG. 6c, FIG. 6d, FIG. 8a, FIG. 8b, FIG. 9 and FIG. 10a, in a method for packaging a solar panel stack according to one embodiment of the present invention, a stack (20) is moved and placed on a workbench (1000) (S300), and a corner cover (30) is installed on a side corner (24) of the stack (20) placed on the workbench (1000) (S610).

[0295] According to one embodiment, in step S610, the controller (900) can determine the position and width (W) of the stack (20) based on information obtained by the cover installation sensor (540) (shown in FIG. 6c), and calculate the target distance (D) between a pair of cover supports (510) based on this.

[0296] At this time, the target distance (D) may be a spacing such that a pair of cover supports (510) correspond to side corners (24) provided on both sides of the side (23) of the stack (20). Then, the controller (900) can move the cover supports (510) in the forward and backward direction (Y-axis direction) based on the target distance (D).

[0297] Next, according to one embodiment, in step S610, the controller (900) can move the cover support (510) holding the corner cover (30) in the direction of the stack (20) (negative direction of the X-axis) so that the corner cover (30) is fitted into the side corners (24a, 24b).

[0298] At this time, the controller (900) can operate the cover supports (510) of the first and second cover installation devices (500a, 500b) so that corner covers (30) are installed on all side corners (24a to 24b) of the stack (20). The operation of these cover supports (510) may be performed simultaneously or sequentially. Accordingly, corner covers (30) can be installed on all side corners (24) of the stack (20).

[0299] Meanwhile, referring to FIGS. 10a and FIGS. 10b, a plurality of solar panels (P) placed on a workbench (1000) may not be aligned when viewed with respect to a reference line (L).

[0300] At this time, the reference line (L) can be defined as an imaginary line extending in a direction parallel to the stacking direction (Y-axis direction) of the solar panel (P). And, as shown in FIG. 10b, the state in which the solar panel (P) is not aligned can be defined as a state in which the longitudinal end of the solar panel (P) does not overlap with the reference line (L) and is positioned offset in the lateral direction of the reference line (L).

[0301] When the stack (20) is placed into the box (50) while the solar panels (P) are not aligned in this manner, the corners of the solar panels (P) protruding outward and the inner surface (50a) of the box (50) may interfere with or be pressed against each other.

[0302] This phenomenon may damage the box (50) or the solar panel (P), or cause additional damage to the box (50) or the stack (20) during transportation. Therefore, as shown in FIG. 11b, multiple solar panels (P) need to be aligned side by side in the stacking direction (Y-axis direction) along the reference line (L). To this end, in a method for packaging a solar panel stack according to one embodiment of the present invention, step S620 described below is performed.

[0303] Referring to FIG. 8b and FIG. 10a to 10c, a method for packaging a solar panel stack according to one embodiment of the present invention installs a corner cover (30) on the corner of the stack (20) (S610), and aligns the stack (20) so that a plurality of solar panels (P) placed on a workbench (1000) are arranged side by side in the stacking direction (S620).

[0304] According to one embodiment, in step S620, the controller (900) moves the alignment frame (610) of the first alignment device (600a) in the direction of the stack (20) (negative direction of the X-axis) so that the alignment part (611) of the first alignment device (600a) presses the first side (23a) of the stack (20).

[0305] At this time, the solar panels (P) that are pressed by the alignment part (611) of the first alignment device (600a) may be pushed to the right (negative direction of the X-axis) toward the reference line (L). Also, both sides of the first side (23a) may be supported by the first and second stack support parts (612, 613) of the first alignment device (600a).

[0306] Additionally, according to one embodiment, in step S620, the controller (900) moves the alignment frame (610) of the second alignment device (600b) in the direction of the stack (20) (positive direction of the X-axis) so that the alignment part (611) of the second alignment device (600b) presses the second side (23b) of the stack (20).

[0307] Accordingly, the solar panels (P) that are pressed by the alignment part (611) of the second alignment device (600a) can be pushed to the left (positive direction of the X-axis) toward the reference line (L). Also, both sides of the second side (23b) can be supported by the first and second stack support parts (612, 613) of the second alignment device (600a).

[0308] At this time, in step S620, it is preferable that the step of moving the alignment frame (610) of the first alignment device (600a) and the step of moving the alignment frame (610) of the second alignment device (600b) are performed sequentially.

[0309] This is because if both sides (23a, 23b) of the stack (20) are pressed simultaneously, excessive force is applied to the stack (20) in both directions, which may cause damage to the stack (20). Of course, if such damage can be prevented, it would be possible for the aforementioned steps to be performed simultaneously.

[0310] In this way, according to the packaging method of a solar panel stack according to one embodiment of the present invention, a plurality of solar panels (P) can be aligned side by side in the stacking direction along a reference line (L) as shown in FIG. 11b, so that damage to the box (50) and the stack (20) can be minimized during the process of placing the stack (20) into the box (50).

[0311] Referring again to FIG. 1, FIG. 8b and FIG. 12, in a method for packaging a solar panel stack according to one embodiment of the present invention, the stack (20) is aligned in a stacking direction (Y-axis direction) (S620), and the cover support (510) is separated from the stack (20) (S630).

[0312] According to one embodiment, in step S630, the controller (900) operates the cover support (510) to place the corner cover (30), and when the cover support (510) places the corner cover (30), the cover support (510) can be separated from the side (23) of the stack (20).

[0313] At this time, since the lower part of the corner cover (30) is supported by the stack support portions (612, 613) of the alignment frame (610), the corner cover (30) can be maintained in a state where it is fitted into the corner of the stack (20).

[0314] Referring again to FIG. 1, FIG. 8b and FIG. 13, in a method for packaging a solar panel stack according to one embodiment of the present invention, a cover support (510) is spaced apart from the stack (20) (S630), and a first cover member (40) is placed on the upper surface (21) of the stack (20) (S640).

[0315] To this end, according to one embodiment, in step S640, the controller (900) may operate the gripper (810) so that the first cover member (40) is grasped, operate the robot arm (820) so that the first cover member (40) grasped by the gripper (810) is moved to the upper surface (21) of the stack (20), and operate the gripper (810) so that the first cover member (40) is placed.

[0316] Accordingly, the upper surface of the stack (20) can be double-protected by the bottom surface of the box (50) and the first cover member (40), and the stack (20) can be properly supported and fixed in position within the box (50).

[0317] Referring again to FIG. 1, FIG. 8b and FIG. 14, in a method for packaging a solar panel stack according to one embodiment of the present invention, a first cover member (40) is placed on the upper surface (21) of the stack (20), and a guide bar (710) is placed on the side of the stack (20) (S650).

[0318] At this time, in step S650, the guide portion (712) of the guide bar (710) may be placed in the vertical direction (Z-axis direction) on the side (23) of the stack (20). More specifically, in one embodiment, two of the four guide portions (712) are placed on the third side (23c) which is placed in the width direction of the stack (20), and the remaining two are placed on the fourth side (23d) which is opposite to the third side (23c).

[0319] In addition, at step S650, the catch portion (713) of the guide bar (710) may be positioned to protrude upward (in the positive direction of the Z-axis) from the side (23) of the stack (20). At this time, the catch portion (713) may be positioned adjacent to the upper edge (22) of the upper surface (21) of the stack (20). Furthermore, the direction in which the catch portion (713) is bent may be positioned to face the upper surface (21) of the stack (20).

[0320] More specifically, in one embodiment, four locking portions (713) are positioned adjacent to the first to fourth upper surface corners (22a to 22d) of the upper surface (21), respectively, and the direction in which the locking portions (713) are bent is arranged to be inclined toward the upper surface (21) of the stack (20). The effect of the above arrangement will be described later together with FIGS. 16a to 17b.

[0321] FIG. 15 is a drawing showing the state in which the packaging device (800) of FIG. 1 moves a box to package a stack placed on a workbench. FIG. 16a is a drawing showing the state in which the box is tilted by the packaging device (800) so as to be caught on the catch portion (713) of the guide bar (710). FIG. 16b is a vertical cross-sectional view enlarged from section A3 of FIG. 16a. FIG. 17a is a drawing showing the state in which the box is moved by the packaging device (800) so that the upper surface corner (22) of the stack enters the box. FIG. 17b is a vertical cross-sectional view enlarged from section A4 of FIG. 17a to FIG. 18c are drawings showing the state in which the box is tilted stepwise by the packaging device (800) so that the upper surface corners (22) of the stack enter the box sequentially. FIG. 19a is a vertical cross-sectional view showing the state in which the guide portion (712) of the box guide device (700) is separated from the side of the stack. FIG. 19b is a drawing showing the state in which the guide bar (710) of the box guide device (700) is moved to come out of the box. FIG. 20 is a drawing showing the state in which the box is lowered for one section so that the stack comes in by the packaging device (800). FIG. 21 is a drawing showing the state in which the alignment frame (610) of the alignment device (600) is separated from the stack. FIG. 22 is a drawing showing the state in which the box is lowered for the remaining section so that the stack comes in by the packaging device (800).

[0322] At this time, for the sake of brevity in the drawings, the gripper (810) holding the box (50) and the robot arm (820) for moving the gripper (810) in FIGS. 16a to 22 are not shown. Also, the reference numerals 21 and 22 shown in FIGS. 15 to 22 should be understood to refer to the top surface and top surface corner of the stack, respectively.

[0323] Referring again to FIG. 1, FIG. 8b, FIG. 8c and FIG. 15, in a method for packaging a solar panel stack according to one embodiment of the present invention, a guide bar (710) is placed on the side of the stack (20) (S650), and the stack (20) is placed in a box (50) (S660).

[0324] At this time, in step S660 according to one embodiment, as shown in FIG. 15, the open side (51) of the box (50) and the side of the stack (20), for example, the top surface (21) of the stack (20), are arranged to face each other (S661).

[0325] To this end, in step S661 according to one embodiment, the controller (900) operates the robot arm (820) to move or tilt the open side (51) of the box (50) held by the gripper (810) so that it faces the upper surface (21) of the stack (20).

[0326] At this stage, it should be understood that the upper surface (21) of the stack (20) is not determined by the position or direction on the coordinate system (XYZ axis) of the stack (20), but rather by the relative position between the stack (20) and the box (50). More specifically, the upper surface (21) of the stack (20) should be understood not as a surface facing the upward direction (positive direction of the Z axis) among the multiple outer surfaces of the stack (20), but as a surface positioned to face the open side (51) of the box (50).

[0327] Referring again to FIG. 1, FIG. 8c, FIG. 16a and FIG. 16b, in step S660 according to one embodiment of the present invention, one side (51) of a box (50) and the upper surface (21) of a stack (20) are arranged to face each other (S661), and the box (50) is tilted or moved so that the open side (51) of the box (50) is caught on one of a plurality of catch portions (713) (S662).

[0328] At this time, the fact that the catch portion (713) is caught on one side (51) of the box (50) may mean that the catch portion (713) is placed in a position where it can come into contact with the inner surface (50a) of the box (50) as shown in FIG. 16a and FIG. 16b.

[0329] In step S662 according to one embodiment, in order for one side (51) of the box (50) to be caught on a catch (713) positioned adjacent to the third upper edge (22c) of the stack (20), the controller (900) operates the robot arm (820) so that the box (50) held by the gripper (810) is tilted or moved.

[0330] At this time, as shown in FIG. 16b, the catch portion (713) is bent toward the upper surface (21) of the stack (20), so the box (50) that is moved or tilted by the robot arm (820) can be more easily caught on the catch portion (713).

[0331] Referring again to FIG. 1, FIG. 8c, FIG. 17a and FIG. 17b, in step S660 according to one embodiment of the present invention, the box (50) is tilted so that one side (51) of the box (50) is caught on the catch portion (713) (S662), and the box (50) is tilted or moved so that one of the plurality of upper surface corners (22) enters the box (50) before the central part of the upper surface (21) of the stack (20) (S663).

[0332] In step S663 according to one embodiment, in order for the third corner (22c) of the stack (20) to come in before the central part of the upper surface (21) of the stack (20), the controller (900) operates the robot arm (820) so that the box (50) held by the gripper (810) tilts or descends.

[0333] At this time, as illustrated in FIG. 16b and FIG. 17b, the box (50) moved by the robot arm (820) in step S663 can slide along the outer surface of the catch (713) and then descend in a downward direction (negative direction of the Z-axis) for a period of time along the outer surface of the guide (712).

[0334] In this way, according to the packaging method of a solar panel stack according to one embodiment, the movement of the box (50) can be guided by the guide bar (710), so the upper edge (22) of the stack (20) can be more easily brought into the box (50).

[0335] Through this, the packaging method of a solar panel stack according to one embodiment can prevent the upper surface corner (22) of the stack (20) and the box (50) from interfering with and scratching each other, thereby minimizing damage to the stack (20) and the box (50) that may occur during the packaging process.

[0336] Furthermore, according to the packaging method of a solar panel stack according to one embodiment, the upper surface corner (22) of the upper surface (21) is configured to enter the box (50) before the central part of the upper surface (21), so that damage caused by interference between the box (50) and the corner of the stack (20) can be prevented.

[0337] Referring again to FIG. 1, FIG. 8c and FIG. 18a to FIG. 18c, in step S660 according to one embodiment of the present invention, the box (50) is tilted or moved so that the upper surface corner (22) of the stack (20) comes into the box (50) (S663), and it is checked whether all upper surface corners (22) of the stack (20) have come into the box (50) (S664).

[0338] At this time, if it is determined in step S664 that all upper surface corners (22) have not entered the box (50), the aforementioned steps S662 and S663 are repeated so that the upper surface corners (22) that have not entered the box (50) enter the box (50).

[0339] To this end, in one embodiment, in order for the first, second, and fourth upper surface edges (22a, 22b, 22d) that have not entered the box (50) to enter the box (50) sequentially, the controller (900) operates the robot arm (820) so that the box (50) held by the gripper (810) is tilted stepwise as shown in FIGS. 18a to 18c.

[0340] At this time, according to one embodiment of the present invention, when the first, second, and fourth upper surface corners (22a, 22b, 22d) sequentially enter the box (50), the box (50) held by the gripper (810) can be guided by the guide bar (710). The guiding process by the guide bar (710) is as described in conjunction with FIGS. 16a to 17b. Accordingly, damage to the stack (20) and the box (50) that may occur during the packaging process can be minimized.

[0341] Meanwhile, referring again to FIGS. 1, FIGS. 8c and FIGS. 18c, in step S660 according to one embodiment of the present invention, when all upper surface corners (22) come into the box (50) (S664), the guide bar (710) is separated from the side of the stack (20) (S665).

[0342] According to one embodiment, the step (S665) of separating the guide bar (710) from the side of the stack (20) may include the step (S6651) of separating the guide portion from the side of the stack and the step (S6652) of lowering the guide bar so that the catch portion comes out of the box.

[0343] At this time, referring to FIG. 1, FIG. 8c, FIG. 19a and FIG. 19b, in step S665 according to one embodiment of the present invention, the guide portion (712) of the guide bar (710) is first separated from the side (23) of the stack (20) (S6651).

[0344] To this end, in step S6651 according to one embodiment, the controller (900) rotates the guide bar (710) clockwise so that the guide portion (712) of the guide bar (710) located on the right side with respect to FIG. 19a is separated from the third side (23c), and rotates the guide bar (710) counterclockwise so that the guide portion (712) of the guide bar (710) located on the left side with respect to FIG. 19a is separated from the fourth side (23d). At this time, since the box (50) has a certain elasticity, when the guide bar (710) presses the inner surface (50a) of the box (50) outward, the opening of the box (50) may open slightly.

[0345] Thus, the reason for separating the guide part (712) from the stack (20) in step S6651 is to minimize damage to the side (23) of the stack (20) by the catch part (713) or the guide part (712) when the guide bar (710) comes out of the stack.

[0346] Again, referring to FIG. 1, FIG. 8c, FIG. 19a and FIG. 19b, in step S665 according to one embodiment of the present invention, the guide portion (712) of the guide bar (710) is separated from the side (23) of the stack (20) (S6651), and the guide bar (710) is lowered so that the catch portion (713) comes out of the box (50) (S6652).

[0347] To this end, according to one embodiment, in step S6652, the controller (900) lowers the alignment frame (610) to which the guide bar (710) is attached in a downward direction (negative direction of the Z-axis).

[0348] At this time, as described above, the bent portion of the catch portion (713) may be made of a material having a certain elasticity. Accordingly, when the guide bar (710) descends and the catch portion (713) comes into contact with the side (23) of the stack (20), the catch portion (713) can be elastically deformed and extended in the vertical direction (Z-axis direction). Accordingly, damage to the side (23) of the stack (20) by the catch portion (713) during the process of the guide bar (710) descending can be minimized.

[0349] Referring again to FIG. 1, FIG. 8c and FIG. 20 to FIG. 22, in step S660 according to one embodiment of the present invention, the guide bar (710) is moved away from the stack (20) (S665), the box (50) is lowered for one section so that a part of the stack (20) comes in (SS666), the alignment frame (610) is moved away from the stack (20) (SS667), and the box (50) is lowered for the remaining section so that the remaining part of the stack (20) comes in (SS668).

[0350] To this end, in one embodiment, the controller (900) may operate the robot arm (820) so that the box (50) held by the gripper (810) descends for a period of time in a direction perpendicular to the upper surface (21) of the stack (20) to bring in a part of the stack (20), operate the alignment device (600) so that the alignment frame (610) moves away from the stack (20), and operate the robot arm (820) so that the box (50) held by the gripper (810) descends for the remaining period of time in a direction perpendicular to the upper surface (21) of the stack (20) to bring in the remaining part of the stack (20).

[0351] In this way, the box packaging method according to one embodiment of the present invention is configured to lower the box (50) in a direction perpendicular to the top surface (21) while all top surface corners (22) of the stack (20) are brought into the box (50), thereby minimizing interference or friction between the stack (20) and the box (50) during the process of the stack (20) entering the box (50).

[0352] As a result, according to the box packaging method according to one embodiment of the present invention, damage to the stack (20) and the box (50) that may occur during the process of packaging the stack (20) into the box (50) can be minimized.

[0353] Referring again to FIGS. 1, FIGS. 2 and FIGS. 8b, in a method for packaging a solar panel stack according to one embodiment of the present invention, the stack (20) is placed in a box (50) (S660), and the box (50) is sealed by covering an open side (51) of the box (50) with a second cover member (60) (S670).

[0354] At this time, according to one embodiment, in step S670, a box (50) containing a stack (20) is rotated so that one side (51) faces upward (positive direction of the Z-axis) as shown in FIG. 2, and then the one side (51) can be sealed by a second cover member (60). At this time, the above-described process can be carried out by the operation of a predetermined device. Accordingly, a solar panel packaging body can be formed.

[0355] Meanwhile, as previously explained, the packaging method of a solar panel stack according to one embodiment of the present invention can be performed by the packaging system of a solar panel stack according to one embodiment of the present invention described above.

[0356] However, the packaging method of a solar panel stack according to one embodiment of the present invention is not limited to being performed by a packaging system of a solar panel stack according to one embodiment of the present invention, and the packaging method of a solar panel stack according to one embodiment of the present invention may be performed by a system other than the packaging system of a solar panel stack according to one embodiment of the present invention.

[0357] Furthermore, the packaging system for a solar panel stack according to one embodiment of the present invention is not limited to performing only the packaging method for a solar panel stack according to one embodiment of the present invention, and the packaging system for a solar panel stack according to one embodiment of the present invention may perform other packaging methods or processes other than the packaging method for a solar panel stack according to one embodiment of the present invention.

[0358] Although an embodiment of the present invention has been described above, the spirit of the present invention is not limited to the embodiments presented in this specification. Those skilled in the art who understand the spirit of the present invention may easily propose other embodiments within the scope of the same spirit by adding, changing, deleting, or adding components, and such embodiments shall also be considered to fall within the scope of the spirit of the present invention.

Claims

1. A first conveyor device for transporting a pallet on which a stack of solar panels is placed in a first direction; A packaging device positioned adjacent to a workbench on which the stack is placed, for packaging the stack into a box; A second conveyor device positioned spaced apart from the first conveyor device and discharging only the pallet; and A packaging system for a solar panel stack, comprising: a transfer device disposed between the first conveyor device and the second conveyor device to transfer the pallet from the first conveyor device to the second conveyor device.

2. In Paragraph 1, The above second conveyor device A packaging system for a solar panel stack, positioned parallel to the first conveyor device and discharging the pallet in the opposite direction to the first conveyor device.

3. In Paragraph 1, The above transfer device A gantry unit disposed at the outlet end of the first conveyor device and the inlet end of the second conveyor device; and A packaging system for a solar panel stack, comprising: a gripper unit that moves along the gantry unit and grasps the pallet.

4. In Paragraph 3, The above transfer device A packaging system for a solar panel stack, wherein the gantry unit extends in a second direction above the first conveyor device and above the second conveyor device, and the gripper unit moves linearly in the second direction.

5. In Paragraph 1, A packaging system for a solar panel stack, further comprising: a rotating device disposed at the exit end of the first conveyor device and rotating to change the orientation of the pallet and the stack.

6. In Paragraph 5, The above rotating device A packaging system for a solar panel stack, which changes the pallet from the first direction to the second direction before the stack is picked up from the pallet.

7. In Paragraph 6, The above rotating device A packaging system for a solar panel stack, wherein the transfer device changes the pallet from the second direction back to the first direction before picking up the pallet.

8. In Paragraph 1, A packaging system for a solar panel stack, further comprising: a stack transfer device movably provided between the first conveyor device and the workbench, and transferring the stack from the pallet to the workbench.

9. In Paragraph 8, The stack moving device above A base body movably provided between the above conveyor device and the above workbench; A fork body rotatably coupled to the above base body; A first extension extending from the fork body to support one side of the stack; A second extension extending from the fork body to support the other side of the stack; and A packaging system for a solar panel stack, comprising: a second extension portion rotatable to support a side opposite to one side of the stack or spaced apart therefrom.

10. In Paragraph 9, The stack moving device above A packaging system for a solar panel stack, wherein the first extension is inserted between the pallet and the bottom of the stack, and the fork body rotates to separate the stack from the pallet.

11. In Paragraph 1, The above packaging device A first packaging module disposed adjacent to one side of the above workbench and covering one side of the stack with a cover member; and A packaging system for a solar panel stack comprising: a second packaging module positioned adjacent to the other side of the above workbench and gripping the box to insert the box into the stack.

12. In Paragraph 11, The above second packaging module is A packaging system for a solar panel stack, wherein the box is gripped so that the opening of the box faces downward, and the box is inserted into the stack.

13. A first conveyor device for transporting a pallet on which a stack of solar panels is placed in a first direction; A packaging device positioned adjacent to a workbench on which the stack is placed, for packaging the stack into a box; A second conveyor device spaced apart from and arranged parallel to the first conveyor device, and discharging only the pallet; A stack transfer device movably provided between the first conveyor device and the packaging device, and transferring the stack from the pallet to the workbench; and A packaging system for a solar panel stack, comprising: a rotating device disposed at the exit end of the first conveyor device and rotating to change the orientation of the pallet and the stack.

14. In Paragraph 13, The above rotating device Before the stack moving device picks up the stack, the pallet and the stack are changed from the first direction to the second direction, and A packaging system for a solar panel stack, wherein the pallet is changed back from the second direction to the first direction before being transferred to the second conveyor device.

15. In Paragraph 13, The above packaging device A first packaging module disposed adjacent to one side of the above workbench and covering one side of the stack with a cover member; and A packaging system for a solar panel stack comprising: a second packaging module positioned adjacent to the other side of the above workbench and gripping the box to insert the box into the stack.

16. In Paragraph 15, The above second packaging module is A packaging system for a solar panel stack, wherein the box is gripped so that the opening of the box faces downward, and the box is inserted into the stack.

17. In Paragraph 13, A packaging system for a solar panel stack, further comprising: a transfer device disposed between the first conveyor device and the second conveyor device to transfer the pallet from the first conveyor device to the second conveyor device.

18. A step of loading a pallet on which a stack of solar panels is placed onto a first conveyor device; A rotating device positioned at the exit end of the first conveyor device rotates the stack and the pallet to align the stack and the pallet in a preset direction; A step of moving the stack moving device to the aligned stack on the workbench; A step in which the above-mentioned rotating device returns only the above-mentioned pallet to its original direction; A step in which a transfer device discharges the pallet returned to a second conveyor device spaced apart from the first conveyor device; and A method for packaging a solar panel stack, comprising the step of packaging the stack placed on the workbench into a box using a packaging device.

19. In Paragraph 18, The step of packaging the above stack into a box A method for packaging a solar panel stack, wherein the step of returning only the above pallet to its original direction or the step of discharging the above pallet are performed simultaneously.

20. In Paragraph 18, In the step of moving the above stack to the workbench, A method for packaging a solar panel stack, wherein a first extension of the stack moving device is inserted between the pallet and the bottom of the stack, and a fork body rotates to separate the stack from the pallet.

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