Frame stacking equipment and stacking method

Abstract

The invention discloses frame stacking equipment and a stacking method. The frame stacking equipment comprises a cache conveying line, a row of frames with the set number are cached, a stacking station is arranged at the tail end of the cache conveying line, and a roller conveying line is arranged at the stacking station; the stacking and carrying mechanism is used for carrying a row of frames to the stacking station and comprises a driving module, a mounting bracket arranged at the movable tail end of the driving module and at least two overturning modules arranged on the mounting bracket side by side; the two overturning modules are each provided with a pair of overturning clamping plates and a first motor driving the overturning clamping plates to rotate, and the two pairs of overturning clamping plates clamp two sets of materials and overturn around overturning shaft cores of the corresponding overturning clamping plates at the same time. And the strip placing unit is arranged at the stacking station and is used for placing an isolating strip at a set position on the frame layer after the set frame layer is stacked. The frame stacking efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of frame palletizing, and in particular relates to a frame palletizing device and a palletizing method. Background Art

[0002] Most of the photovoltaic modules on the market are equipped with aluminum frames around them. The frames are in a stacked state when they are being stacked and packaged. The frames need to be stacked together with their front and back facing up. Therefore, the frames need to be flipped 180 degrees as required during stacking, and then frame stacking equipment is needed.

[0003] Patent CN221758893U in the prior art discloses a strip frame buckling and palletizing device, which includes a frame conveyor line, a frame buckling mechanism arranged on both sides of the frame conveyor line, a palletizing station arranged at the end of the frame conveyor line, and a palletizing and transporting mechanism for transporting a group of frames from the frame conveyor line to the palletizing station for palletizing; the device conveys a frame with an opening facing upward through the frame conveyor line, and then uses the frame buckling mechanism to transport one of the two adjacent frames, flip it 180 degrees, and then buckle it onto the other frame to form a frame group buckled up and down, and then uses the frame conveyor line to cache multiple frame groups into a row, and then uses the palletizing and transporting mechanism to transport the entire row of frame groups to the palletizing station for palletizing; in this process, the turning and transporting of the frame are completed by two mechanisms, and the frames need to be turned over and buckled one by one, and the feeding speed of the frame group is slow, which seriously affects the palletizing rhythm.

[0004] Therefore, it is necessary to provide a new frame palletizing device and a palletizing method to solve the above technical problems. Summary of the invention

[0005] One of the main purposes of the present invention is to provide a frame stacking device, which provides a brand-new structure to solve the above-mentioned technical problems.

[0006] The present invention achieves the above-mentioned purpose through the following technical solution: a frame palletizing device, comprising: A buffer conveyor line, which buffers a set number of rows of frames, a palletizing station is provided at the end of the buffer conveyor line, a roller conveyor line is provided at the palletizing station, and the roller conveyor line inputs pallets and outputs palletizing frames; The stacking and transporting mechanism transports the row of frames to the stacking station, and comprises a driving module, a mounting bracket arranged at the movable end of the driving module, and at least two flipping modules arranged side by side on the mounting bracket; the two flipping modules each have a pair of flipping clamps and a first motor for driving the flipping clamps to rotate, and the two pairs of flipping clamps clamp two groups of materials and flip them around the flipping axis cores of their respective flipping clamps at the same time; The strip placement unit is arranged at the palletizing station, and after the palletizing of the set frame layer is completed, the isolation strip is placed at the set position on the frame layer.

[0007] Furthermore, a blocking block is provided at the end of the cache conveying line.

[0008] Furthermore, the driving module is an XZ-axis driving module; the flipping module includes a second motor fixed on the mounting bracket and a movable bracket driven horizontally by the second motor; the movable brackets in the two flipping modules move closer to each other to clamp the material or separate from each other to release the material under the drive of the second motor; the first motor is fixedly arranged on the movable bracket; the flipping clamp is rotatably arranged on the movable bracket and is connected to the rotating end of the first motor.

[0009] Furthermore, it also includes a material distribution conveyor line continuously connected to the input side of the buffer conveyor line; the material distribution conveyor line and the buffer conveyor line convey the frame along the X direction; the input side of the material distribution conveyor line is provided with a material distribution module and a return module.

[0010] Furthermore, the material distribution module includes a front stop component and a rear stop component located upstream of the front stop component and spaced a set distance apart; a plurality of the front stop components and the rear stop components are provided, and are spaced apart along the Y direction; the front stop component and the rear stop component are spaced apart in the conveying direction of the material distribution conveyor line, and a correction area is formed between the two, and the correction module is provided on both sides of the Y direction of the correction area to correct the position of the two ends of the frame in the correction area.

[0011] Furthermore, the strip placement unit includes a strip feeding mechanism and a strip clamping and pulling mechanism; the strip feeding mechanism includes a third motor, a first beam driven by the third motor to move up and down and extending along the Y direction, and a plurality of strip feeding modules arranged on the first beam; the strip clamping and pulling mechanism includes a fourth motor, a supporting column driven by the fourth motor to move along the X direction, a fifth motor fixed on the supporting column, a second beam driven by the fifth motor to move up and down and extending along the Y direction, and a plurality of strip clamping modules arranged on the second beam.

[0012] Furthermore, one side of the roller conveyor line is the cache conveyor line, and the other opposite side is the input and output position; the strip feeding mechanism is located at the input and output side of the roller conveyor line.

[0013] Another object of the present invention is to provide a border palletizing method, which is implemented based on the border palletizing device as described above and includes the following steps: S1, a set number of rows of frames are cached on the cache conveyor line; the pallet is input into place through the roller conveyor line; S2, the stacking and handling mechanism moves to the top of the buffer conveyor line, and the two flip modules respectively clamp a group of frames, and then move to the stacking station and place them on the pallet; if multiple handling is required, repeat this step until the stacking of the positive frame layer is completed; S3, the stacking and handling mechanism returns to the top of the buffer conveyor line, and the two flip modules respectively clamp a group of frames, and then respectively drive a group of frames to flip 180 degrees around the flip axis core of each flip clamp to form an inverted frame, and then move to the stacking station, stack on the positive frame layer, and buckle with the positive frame; if multiple handling is required, repeat this step until the stacking of the inverted frame layer is completed; S4, repeat steps S2 to S3 until the palletizing frame reaches the set height, completing the frame palletizing; S5. The pallet stacking frame is output through the roller conveyor line.

[0014] Furthermore, it also includes that before the inverted frame layer is stacked, the strip placement unit lays an isolation paper strip on the positive frame layer; or before the positive frame layer of the set layer is stacked, the strip placement unit lays a plastic steel strip on the inverted frame layer.

[0015] Furthermore, the method for laying the isolation paper strip or plastic-steel strip by the strip placement unit is as follows: in the initial state, the first beam and the second beam are located at the input and output sides of the roller conveyor line, and are located at a height position to avoid the input of the pallet; when working, the height of the first beam rises and moves correspondingly with the stacking height, the strip feeding module supplies the strip, the strip clamping module clamps the strip head on the strip feeding module and pulls out a set length, the first beam and the second beam descend a set distance, so that the strip is located on the current stacking frame, and the stacking transport machine The structure clamps the next group of frames across the second beam and moves them to the stacking station to stack the next layer of frames; after the stacking of the next layer of frames is completed, the strip feeding module cuts the strip, and the strip clamping module releases the strip head to complete the strip placement; after the strip is placed, the strip clamping module returns with the second beam from above the stacking frame to the side of the first beam to clamp, pull and place the strip in the next cycle; after the overall stacking is completed, the first beam and the second beam rise to a height position to avoid the output of the stacking frame.

[0016] Compared with the prior art, the frame palletizing device and the palletizing method of the present invention have the following beneficial effects: (1) The frame locking mechanism in the original palletizing equipment was cancelled, and the frame flipping function was integrated into the palletizing and handling mechanism, forming a frame palletizing and handling mechanism with a flipping function, which provides conditions for realizing the palletizing method of "one positive frame layer and one inverted frame layer"; (2) In the frame stacking and handling mechanism, at least two flipping modules are arranged side by side, and a row of frames is clamped together by the two flipping modules. When flipping, a row of frames is divided into two and flipped around the rotating axis of each flipping module, thereby reducing the flipping radius of the entire row of frames, thereby reducing the rising stroke of the stacking and handling mechanism to carry the entire row of frames to the flipping height, and also reducing the descending stroke during stacking, thereby increasing the number of frames stacked at one time and reducing the time consumption of the intermediate transfer action, thereby improving the stacking efficiency in both directions; (3) This scheme proposes a new frame stacking method. The original method is to buckle the front and back frames first to form a frame group, and then transport multiple frame groups for stacking; while the method adopted by this scheme is to stack a layer of positive frame layer, and then stack a layer of inverted frame layer, and stack them alternately. During the transportation process of stacking the inverted frame layer, the whole row of frames can be synchronously flipped 180 degrees. There is no need to buckle a single frame to form a frame group, which eliminates the forming process of the middle inverted frame group and the setting of the inverted device. The whole row of frames is stacked together, which greatly improves the stacking efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 It is a schematic diagram of a top view of the structure of an embodiment of the present invention; Figure 3 It is a schematic diagram of a local structure of an embodiment of the present invention; Figure 4 Based Figure 3 A schematic diagram of the enlarged structure at B in the middle; Figure 5 It is a structural schematic diagram of the palletizing and handling mechanism in an embodiment of the present invention; Figure 6 It is a structural schematic diagram of the movable end of the stacking and handling mechanism in an embodiment of the present invention; Figure 7 It is a schematic diagram of the state structure of the frame that has not been turned over on the palletizing and handling mechanism in an embodiment of the present invention; Figure 8 It is a schematic diagram of the state structure of the frame after flipping on the palletizing and handling mechanism in an embodiment of the present invention; Fig. 9 It is a structural schematic diagram of a strip feeding mechanism in an embodiment of the present invention; Fig.10 It is a structural schematic diagram of a strip clamping and pulling mechanism in an embodiment of the present invention; The numbers in the figure represent: 100-Border palletizing equipment; 1- material distribution conveying line, 11- front stop assembly, 111- first cylinder, 112- first baffle, 12- rear stop assembly, 121- second cylinder, 122- second baffle, 13- return module, 131- third cylinder, 132- return plate, 14- slide rail; 2- Cache conveyor line; 3-palletizing and handling mechanism, 31-XZ axis driving module, 32-mounting bracket, 33-turning module, 331-movable bracket, 332-second motor, 333-first motor, 334-turning clamp; 4-strip placement unit, 41-strip feeding mechanism, 411-third motor, 412-first beam, 413-strip feeding module, 42-strip clamping and pulling mechanism, 421-fourth motor, 422-support column, 423-fifth motor, 424-second beam, 425-strip clamping module. DETAILED DESCRIPTION

[0018] Embodiment 1:

[0019] Please refer to Figure 1-Figure 10 This embodiment is a frame palletizing device 100, which includes a continuously connected material distribution conveyor line 1 and a buffer conveyor line 2, a palletizing station arranged at the end of the buffer conveyor line 2, a palletizing transport mechanism 3 for transporting the frame on the buffer conveyor line 2 to the palletizing station for palletizing, and a strip placement unit 4 arranged on the palletizing station. The material distribution conveyor line 1 and the buffer conveyor line 2 transport the frame along the X direction.

[0020] The present embodiment designs a new frame stacking method, and its general process is as follows: the material distribution conveyor line 1 corrects the position of the end of the incoming frame and then sends it to the buffer conveyor line 2. After the number of frames cached on the buffer conveyor line 2 reaches the set number, the material distribution conveyor line 1 stops feeding; the stacking and transporting mechanism 3 clamps the entire row of frames on the buffer conveyor line 2, and then flips it depending on whether it needs to be flipped. If flipping is not required, it is directly transported to the stacking station for stacking; if flipping is required, the entire row of frames is flipped and then transported to the stacking station for stacking, forming a stacking method of "one layer of positive frame layer and one layer of inverted frame layer"; for each stacking of one layer of frame or a set number of frames, the strip placement unit 4 places one or more isolation paper or plastic steel strips at the set position, and the above actions are repeated until the stacking reaches the set height.

[0021] The material distribution conveyor line 1 and the buffer conveyor line 2 are each provided with a servo motor to independently control the operation of the conveyor belt. The input side of the material distribution conveyor line 1 is provided with a material distribution module and a correction module 13, the material distribution module is used to divide the frames of the incoming material into a group according to a set number (for example, 1 to 5), and stop them in the station area of ​​the correction module 13, and the two ends of the group of frames are corrected by the correction module 13, and then conveyed to the buffer conveyor line 2 through the material distribution conveyor line 1.

[0022] The material distribution module includes a front stop assembly 11 and a rear stop assembly 12 located upstream of the front stop assembly 11 and spaced apart at a set distance. A plurality of front stop assemblies 11 and rear stop assemblies 12 are provided, and are spaced apart along the Y direction to achieve distributed stops in the length direction of the frame. The front stop assembly 11 includes a first cylinder 111 and a first baffle 112 driven by the first cylinder 111 to move up and down. The rear stop assembly 12 includes a second cylinder 121 and a second baffle 122 driven by the second cylinder 121 to move up and down. The front stop assembly 11 and the rear stop assembly 12 are spaced apart in the conveying direction of the material distribution conveyor line 1, and a correction area is formed between the two. The correction module 13 is provided on both sides of the Y direction of the correction area to correct the positions of the two ends of the frame in the correction area. The position of the return module 13 can be adjusted on a slide rail 14, and the slide rail 14 is extended along the Y direction. By adjusting the position of the return module 13 in the Y direction, it can be applied to the end return of frames of various length specifications, thereby improving the versatility of the equipment. The return module 13 includes a third cylinder 131 and a return plate 132 driven by the third cylinder 131 to move in the Y direction.

[0023] The front stop assembly 11 can release a frame into the material distribution conveyor line 1 at a set interval according to a set rule, so that the frames delivered on the material distribution conveyor line 1 are spaced at a set interval (for example, 10-40 mm).

[0024] A blocking block (not shown in the figure) is provided at the end of the buffer conveying line 2 to prevent the frame from continuing to move.

[0025] In order to further improve the palletizing rhythm, the number of frames that the palletizing and handling mechanism 3 can carry at one time can be increased. For example, if the palletizing of one layer of frames needs to be carried three times, the number of frames that the palletizing and handling mechanism can carry at one time can be increased, so that one layer of frames can be carried twice or even once. However, as the number of frames that the palletizing and handling mechanism 3 carries at one time increases, the turning radius of the entire row of frames when flipping as a whole will increase, and the height that the palletizing and handling mechanism 3 rises after clamping the entire row of frames needs to be increased, resulting in an increase in the lifting and transferring stroke of the flipping. The increase in the time consumption caused by the increase in the transfer stroke reversely weakens the effect of the efficiency improvement brought about by the increase in the number of frames carried at one time. Therefore, in summary, the improvement in the palletizing efficiency is limited. In order to solve the above technical problems, the present embodiment optimizes the design of the palletizing and handling mechanism 3, flips the entire row together around a flip axis core, and optimizes it to be divided into two and flipped around two flip axis cores respectively, thereby reducing the turning radius, and at the same time reducing the flipping, lifting and transferring stroke, thereby improving the palletizing efficiency. Specifically: The stacking and handling mechanism 3 includes an XZ-axis driving module 31, a mounting bracket 32 ​​arranged at the movable end of the XZ-axis driving module 31, and at least two flipping modules 33 arranged side by side on the mounting bracket 32. The two flipping modules 33 can clamp two sets of frames and flip them around their respective flipping axes. Compared with a single flipping module clamping the same number of frames for overall flipping, the flipping radius can be reduced by nearly half, thereby reducing the working height when the frames are flipped. Therefore, the height travel of the XZ-axis driving module 31 driving the flipping module 33 to clamp the frames to rise and the height travel of the stacking to descend can be reduced, thereby improving the stacking cycle and meeting the requirements of higher production efficiency.

[0026] In this embodiment, two flip modules 33 are disposed on the mounting bracket 32 ​​. In other embodiments, three, four or more flip modules 33 may also be disposed.

[0027] The flip module 33 includes a pair of movable brackets 331 relatively arranged on the mounting bracket 32 ​​along the Y direction and a second motor 332 fixed on the mounting bracket 32 ​​and driving the movable brackets 331 to move horizontally; each movable bracket 331 is provided with a first motor 333 and a flip clamp 334 driven by the first motor 333 to rotate; the flip clamps 334 on the two movable brackets 331 form a pair of clamping components to clamp the two ends of the frame around the flip axis O' of the flip clamp 334 to flip. The second motor 332 drives the movable bracket 331 to move horizontally so that the two movable brackets 331 are close to each other, and then drives the flip clamp 334 to clamp the two ends of the frame; the first motor 333 drives the flip clamp 334 to clamp the frame to achieve the flipping action.

[0028] In this embodiment, two second motors 332 are provided to drive two movable brackets 331 to independently move horizontally. In other embodiments, only one second motor 332 may be provided to cooperate with the transmission assembly to realize synchronous horizontal movement of the two movable brackets 331 to complete the movement of moving closer to or away from each other.

[0029] In this embodiment, the flip clamp 334 has a set length in the X direction so that multiple frames can be clamped at one time and multiple frames arranged continuously can be clamped. In the two flip modules 33, the clamping heights of the two pairs of flip clamps 334 are consistent so that multiple frames located at the same horizontal height can be clamped. For example, if there are several frames cached on the cache conveyor line 2, the system will divide them into two groups, and use two flip modules 33 to complete the clamping of the two groups of frames, and flip the two groups of frames according to the process requirements.

[0030] In this embodiment, the frame is a short frame of a photovoltaic module, and angle brackets are installed at both ends of the short frame. When the flip clamp 334 clamps the two ends of the short frame, it also supports the right-angled sides of the angle brackets at both ends of the short frame to improve the clamping reliability.

[0031] The structure of the strip placement unit 4 can adopt the existing structure, such as the "strip placement unit" in patent CN221758893U. In this embodiment, the strip placement unit 4 includes a strip feeding mechanism 41 and a strip clamping and pulling mechanism 42. The strip feeding mechanism 41 includes a third motor 411, a first beam 412 driven by the third motor 411 to move up and down and extend along the Y direction, and a plurality of strip feeding modules 413 arranged on the first beam 412. The strip clamping and pulling mechanism 42 includes a fourth motor 421, a support column 422 driven by the fourth motor 421 to move along the X direction, a fifth motor 423 fixed on the support column 422, a second beam 424 driven by the fifth motor 423 to move up and down and extend along the Y direction, and a plurality of strip clamping modules 425 arranged on the second beam 424.

[0032] The palletizing station is provided with a roller conveyor line (not marked in the figure) for conveying materials along the X direction. One side of the roller conveyor line is the buffer conveyor line 2, and the other opposite side is the input and output position. The pallet enters from the input and output position and is conveyed to the position through the roller conveyor line. The roller conveyor line is provided with a positioning module (not marked in the figure) for positioning the pallet. After the frame on the pallet is palletized, it is output through the roller conveyor line.

[0033] In this embodiment, the strip feeding mechanism 41 is located at the input and output side of the roller conveyor line. The length of the first crossbeam 412 is greater than the length of the frame, so that after the frame is stacked, the first crossbeam 412 can rise to a high position to avoid the output of the stacking frame. The length of the second crossbeam 424 is greater than the length of the frame, so that when the strip is clamped for pulling, it can move from the input and output side of the roller conveyor line above the stacking frame along the X direction to the other opposite side to complete the pulling and placement of the strip.

[0034] This embodiment implements a border palletizing method based on the above-mentioned border palletizing equipment, which includes the following steps: S1, the material distribution conveyor line 1 conveys the frame to the buffer conveyor line 2, and when a row of frames cached on the buffer conveyor line 2 reaches a set number, the material distribution conveyor line 1 stops feeding, and when the frames on the buffer conveyor line 2 are taken away, the material distribution conveyor line 1 continues feeding; the system divides the row of frames into two groups of frames; before the frames are conveyed to the buffer conveyor line 2, the end positions of the two ends of the frames are corrected by the correction module 13, and the spacing between two adjacent frames is adjusted by the material distribution module; S2, during the execution of step S1, the pallet is input into place through the roller conveyor line and positioned; S3, the stacking and handling mechanism 3 moves to the top of the buffer conveyor line 2, and the two flip modules 33 respectively clamp a group of frames, and then move to the stacking station and place them on the pallet; S4, repeating step S3 until the palletizing of the positive frame layer is completed; for example, repeating step S2 once, that is, the palletizing of each frame layer requires the palletizing and handling mechanism 3 to handle twice; in this step, the "positive frame layer" means that all the frame openings of this layer are facing upward; if the palletizing and handling mechanism 3 can complete the palletizing of a single layer of frames with one handling, there is no need to repeat step S3; S5, the stacking and transporting mechanism 3 returns to the top of the buffer conveyor line 2, and the two flip modules 33 respectively clamp a group of frames, and then respectively drive a group of frames to flip 180 degrees around the flip axis O' of each flip clamp 334 to form an inverted frame, and then move to the stacking station to stack on the positive frame layer; S6, repeating step S5 until the palletizing of the inverted frame layer is completed; for example, repeating step S4 once, that is, the palletizing of each layer of frames requires the palletizing and handling mechanism 3 to handle twice; in this step, "inverted frame layer" means that all the frame openings of this layer are facing downward; if the palletizing and handling mechanism 3 can complete the palletizing of a single layer of frames with one handling, there is no need to repeat step S5; S7, repeat steps S3 to S6 until the palletizing frame reaches the set height, completing the frame palletizing; S8. The pallet stacking frame is output through the roller conveyor line.

[0035] Before stacking the inverted frame layer, the strip placement unit 4 is used to lay the isolation paper strip on the positive frame layer; or before stacking the positive frame layer of the set layer, the strip placement unit 4 is used to lay the plastic steel strip on the inverted frame layer. The steps of laying the isolation paper and the plastic steel strip in this step include: When the pallet is input, the first beam 412 and the second beam 424 are located on the input and output sides of the roller conveyor line and at a height position to avoid the input of the pallet; when working, the first beam 412 and the second beam 424 move to a height position corresponding to the current stacking height, the strip feeding module 413 supplies the strip, the strip clamping module 425 clamps the strip head on the strip feeding module 413 and pulls it out to a set length (for example, a whole strip or 1 / 2 strip), and then the first beam 412 and the second beam 424 are lowered together by a set distance, so that the strip is located on the current stacking frame, and the stacking and moving The transport mechanism 3 clamps the next group of frames and moves across the second beam 424 to the palletizing station to palletize the next layer of frames. After the palletizing of the next layer of frames is completed, the strip feeding module 413 cuts the strip, and the strip clamping module 425 releases the strip head to complete the strip placement; after the strip is placed, the strip clamping module 425 returns from the top of the palletizing frame to the side of the first beam 412 with the second beam 424 to clamp, pull and place the strip in the next cycle; after the overall palletizing is completed, the first beam 412 and the second beam 424 rise to a height position to avoid the output of the palletizing frame.

[0036] In the process of placing the strips in this embodiment, the two ends of the strips are first held by the strip feeding module 413 and the strip clamping module 425 to be placed on the stacking frame and held there. After the next layer of the frame is stacked, the two ends of the strips are cut off and loosened. Through the design of this set of actions, the strips can be accurately and reliably placed at the specified position, and the airflow generated during the movement of the next layer of the frame can be effectively prevented from causing the strips to fall, thereby improving the reliability and safety of the strip placement. In addition, in the process of placing the strips, the first beam 412 is raised and lowered accordingly with the change in the stacking height, so that each time the strip clamping module 425 clamps the strip head, it does not need to descend a large height, thereby saving the lifting stroke, improving the strip placement efficiency, and ensuring that the strip length meets the requirements.

[0037] In other embodiments, the strip placement unit 4 may adopt structures in other prior arts, such as the isolation paper tape laying mechanism disclosed in patent CN218859799U and the paper laying mechanism disclosed in patent CN113548484B.

[0038] For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, all of which fall within the protection scope of the present invention.

Claims

1. A frame palletizing device, characterized in that: It includes: A buffer conveyor line, which buffers a set number of rows of frames, a palletizing station is provided at the end of the buffer conveyor line, a roller conveyor line is provided at the palletizing station, and the roller conveyor line inputs pallets and outputs palletizing frames; A palletizing and transporting mechanism, which transports the row of frames to the palletizing station, comprises a driving module, a mounting bracket arranged at a movable end of the driving module, and at least two flipping modules arranged side by side on the mounting bracket; The two flip modules each have a pair of flip clamps and a first motor that drives the flip clamps to rotate. The two pairs of flip clamps clamp two groups of materials and flip them around the flip axis cores of their respective flip clamps at the same time. The strip placement unit is arranged at the palletizing station, and after the palletizing of the set frame layer is completed, the isolation strip is placed at the set position on the frame layer.

2. The frame palletizing device according to claim 1, characterized in that: A blocking block is arranged at the end of the buffer conveying line.

3. The frame palletizing device according to claim 1, characterized in that: The driving module is an XZ-axis driving module; the flipping module comprises a second motor fixed on the mounting bracket and a movable bracket driven by the second motor to move horizontally; The movable brackets in the two flip modules are driven by the second motor to move closer to each other to clamp the material or separate from each other to release the material; the first motor is fixedly arranged on the movable bracket; the flip clamp is rotatably arranged on the movable bracket and connected to the rotating end of the first motor.

4. The frame palletizing device according to claim 1, characterized in that: It also includes a material distribution conveyor line continuously connected to the input side of the buffer conveyor line; the material distribution conveyor line and the buffer conveyor line convey the frame along the X direction; the input side of the material distribution conveyor line is provided with a material distribution module and a return module.

5. The frame palletizing device according to claim 4, characterized in that: The material distribution module includes a front stop assembly and a rear stop assembly located upstream of the front stop assembly and at a set distance; a plurality of the front stop assemblies and the rear stop assemblies are provided, and are spaced apart along the Y direction; the front stop assembly and the rear stop assembly are spaced apart in the conveying direction of the material distribution conveyor line, and a correction area is formed between the two, and the correction module is provided on both sides of the Y direction of the correction area to correct the positions of the two ends of the frame in the correction area.

6. The frame palletizing device according to claim 1, characterized in that: The strip placement unit includes a strip feeding mechanism and a strip clamping and pulling mechanism; the strip feeding mechanism includes a third motor, a first beam driven by the third motor to move up and down and extending along the Y direction, and a plurality of strip feeding modules arranged on the first beam; the strip clamping and pulling mechanism includes a fourth motor, a supporting column driven by the fourth motor to move along the X direction, a fifth motor fixed on the supporting column, a second beam driven by the fifth motor to move up and down and extending along the Y direction, and a plurality of strip clamping modules arranged on the second beam.

7. The frame palletizing device according to claim 6, characterized in that: One side of the roller conveyor line is the buffer conveyor line, and the other opposite side is the input and output position; the strip feeding mechanism is located at the input and output side of the roller conveyor line.

8. A frame palletizing method, characterized in that: The border palletizing device according to claim 1 is implemented and includes the following steps: S1, a set number of rows of frames are cached on the cache conveyor line; the pallet is input into place through the roller conveyor line; S2, the stacking and handling mechanism moves to the top of the buffer conveyor line, and the two flip modules respectively clamp a group of frames, and then move to the stacking station and place them on the pallet; if multiple handling is required, repeat this step until the stacking of the positive frame layer is completed; S3, the stacking and handling mechanism returns to the top of the buffer conveyor line, and the two flip modules respectively clamp a group of frames, and then respectively drive a group of frames to flip 180 degrees around the flip axis core of each flip clamp to form an inverted frame, and then move to the stacking station, stack on the positive frame layer, and buckle with the positive frame; if multiple handling is required, repeat this step until the stacking of the inverted frame layer is completed; S4, repeat steps S2 to S3 until the palletizing frame reaches the set height, completing the frame palletizing; S5. The pallet stacking frame is output through the roller conveyor line.

9. The frame palletizing method according to claim 8, characterized in that: It also includes the strip placement unit laying an isolation paper strip on the positive frame layer before stacking the inverted frame layer; or the strip placement unit laying a plastic-steel strip on the inverted frame layer before stacking the positive frame layer of the set layer.

10. The frame palletizing method according to claim 9, characterized in that: The strip placement unit includes a strip feeding mechanism and a strip clamping and pulling mechanism; the strip feeding mechanism includes a third motor, a first beam driven by the third motor to move up and down and extending along the Y direction, and a plurality of strip feeding modules arranged on the first beam; the strip clamping and pulling mechanism includes a fourth motor, a support column driven by the fourth motor to move along the X direction, a fifth motor fixed on the support column, a second beam driven by the fifth motor to move up and down and extending along the Y direction, and a plurality of strip clamping modules arranged on the second beam; The method for laying the isolation paper strip or plastic steel strip by the strip placement unit is as follows: in the initial state, the first beam and the second beam are located at the input and output sides of the roller conveyor line and at a height position to avoid the input of the pallet; when working, the height of the first beam rises and moves correspondingly with the stacking height, the strip feeding module supplies the strip, the strip clamping module clamps the strip head on the strip feeding module and pulls out a set length, the first beam and the second beam descend a set distance, so that the strip is located on the current stacking frame, and the stacking handling mechanism clamps The next set of frames is moved across the second beam to the palletizing station to palletize the next layer of frames; after the palletizing of the next layer of frames is completed, the strip feeding module cuts the strip, and the strip clamping module releases the strip head to complete the strip placement; after the strip is placed, the strip clamping module returns from the top of the palletizing frame to the side of the first beam with the second beam to perform the next cycle of strip clamping, pulling and placing actions; after the overall palletizing is completed, the first beam and the second beam rise to a height position to avoid the output of the palletizing frame.

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