Photovoltaic cell printing production line

Abstract

The invention relates to a photovoltaic cell printing production line which comprises at least one double-line printing system, and each double-line printing system comprises two printing single-line systems arranged side by side and a transfer conveying system arranged between the two printing single-line systems. The transferring and conveying system is used for transferring and conveying the silicon plates between the two printing single-line systems. The transferring and conveying system is arranged between the two printing single-line systems, and transferring and conveying of the silicon wafers between the two printing single-line systems are achieved through the transferring and conveying system, so that when a certain device in one printing single-line system is shut down abnormally, the silicon wafers can be transferred and conveyed through the transferring and conveying system; the silicon plates on the printing single-line system are conveyed to the other printing single-line system through the transfer conveying system to be continuously printed, so that processing of silicon wafers is completed, effective production can be carried out by bypassing a shutdown machine table, the operable machine table is reasonably utilized, the capacity loss caused by shutdown is greatly reduced, and the utilization rate of the whole printing line is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic cell production, and in particular to a photovoltaic cell printing production line. Background Art

[0002] Solar photovoltaic panels are the core and most valuable component of a solar power generation system. Their function is to convert solar energy into electricity, either for storage in batteries or to power loads. The quality and cost of solar panels directly determine the quality and cost of the entire system.

[0003] When welding solar photovoltaic panels, the substrate is first fed into the printing press, and silver glue is applied to the position where the silicon wafer needs to be welded, and then welding is performed. During the printing process, manual intervention is often required to stop the machine to wipe the screen, repair the screen, add slurry, handle abnormal alarms, or clean the machine. Since the existing printing lines are all in a series structure, if any device in the line stops, it will directly cause the entire line to stop. The current technology is to install a plate storage device in front of the printing press. For example, the patent with publication number CN202573254U discloses a photovoltaic cell single-line printing system, which is sequentially arranged as a feeder, printing and drying section, plate storage machine, printing and drying section, plate flipper, printing and drying section, plate storage machine, printing press and sintering furnace. The plate storage machine of the photovoltaic cell single-line printing system can only store a small amount of material. For a single machine, long-term maintenance, fault handling and other abnormal handling will prevent production. At the same time, the machines without abnormalities in the series line cannot work continuously, which greatly affects production efficiency. Summary of the Invention

[0004] Based on this, the purpose of the present invention is to provide a photovoltaic cell printing production line to solve the problem of waste of production capacity caused by the inability of the entire line to produce effectively due to abnormal shutdown of a single machine.

[0005] To achieve the above object, the present invention adopts the following technical solutions: The present invention first provides a photovoltaic cell printing production line, which includes at least one dual-line printing system, each dual-line printing system includes two side-by-side printing single-line systems and a transfer and conveying system arranged between the two printing single-line systems, and the transfer and conveying system is used to realize the transfer and conveying of silicon plates between the two printing single-line systems.

[0006] The present invention sets a transfer and conveying system between two printing single-line systems, and realizes the transfer and conveying of silicon wafers between the two printing single-line systems through the transfer and conveying system. When a device in one of the printing single-line systems stops abnormally, the silicon plate on the printing single-line system is transported to the other printing single-line system through the transfer and conveying system to continue printing, so as to complete the processing of the silicon wafers. The stopped machine can be bypassed for effective production, which greatly reduces the production capacity loss caused by downtime, improves the utilization rate of the entire printing line, and solves the problem of waste of production capacity caused by the inability of the entire line to produce effectively due to the abnormal shutdown of a single machine.

[0007] As a further improvement of the above solution of the present invention, the printing single-line system includes a loader, a printing drying mechanism and a printing sintering mechanism which are arranged in sequence.

[0008] As a further improvement of the above-mentioned solution of the present invention, the printing and drying mechanism includes a plate storage machine 1, a printing machine 1, a drying furnace 1, a plate storage machine 2, a printing machine 2, a drying furnace 2, a plate storage machine 3, a printing machine 3, and a drying furnace 3, which are arranged in sequence; the printing and sintering mechanism includes a plate storage machine 4, a printing machine 4, and a sintering furnace, which are arranged in sequence.

[0009] As a further improvement of the above-mentioned scheme of the present invention, the transfer and conveying system includes a transfer and conveying device, and the transfer and conveying device includes two transfer mechanisms and a conveying line. The two transfer mechanisms are respectively arranged at the feeding ends of the board storage machines of the two printing single-line systems, and the conveying line is arranged between the two transfer mechanisms and its two ends are respectively connected to the two transfer mechanisms.

[0010] As a further improvement of the above-mentioned scheme of the present invention, the transfer and conveying system includes a transfer and conveying device 2, and the transfer and conveying device 2 includes two transfer mechanisms 2 and a conveyor line 2. The two transfer mechanisms 2 are respectively arranged at the feed ends of the two plate storage machines 2 of the two printing single-line systems, and the conveyor line 2 is arranged between the two transfer mechanisms 2 and its two ends are respectively docked with the two transfer mechanisms 2.

[0011] As a further improvement of the above-mentioned scheme of the present invention, the transfer and conveying system includes a transfer and conveying device three, and the transfer and conveying device three includes two transfer mechanisms three and a conveying line three. The two transfer mechanisms three are respectively arranged at the feed ends of the plate storage machines three of the two printing single-line systems, and the conveying line three is arranged between the two transfer mechanisms three and its two ends are respectively connected to the two transfer mechanisms three.

[0012] As a further improvement of the above-mentioned scheme of the present invention, the transfer and conveying system includes a transfer and conveying device four, and the transfer and conveying device four includes two transfer mechanisms four and a conveying line four. The two transfer mechanisms four are respectively arranged at the feed ends of the plate storage machines four of the two printing single-line systems, and the conveying line four is arranged between the two transfer mechanisms four and its two ends are respectively connected to the two transfer mechanisms four.

[0013] As a further improvement of the above-mentioned scheme of the present invention, the transfer and conveying system includes a transfer and conveying device five, and the transfer and conveying device five includes two transfer mechanisms five and a conveying line five. The two transfer mechanisms five are respectively arranged at the feed ends of the plate storage machines five of the two printing single-line systems, and the conveying line five is arranged between the two transfer mechanisms five and its two ends are respectively connected to the two transfer mechanisms five.

[0014] As a further improvement of the above solution of the present invention, the photovoltaic cell printing production line further includes a transfer mechanism, which is used to transfer and transport the silicon panels between the two-line printing systems.

[0015] As a further improvement of the above-mentioned scheme of the present invention, the transfer mechanism includes a cache device, a conveying platform and several lifting slides; a sheet-taking and loading device is provided on one side of the transfer and conveying system, and the sheet-taking and loading device is used to load the silicon plates on the transfer and conveying system to the cache device or to unload the silicon plates on the cache device to the transfer and conveying system; the conveying platform is located above each double-line printing system and is used to transport the buffer device; several lifting slides are arranged vertically and several lifting slides are arranged in sequence at intervals, and a lifting slide is provided above each transfer and conveying system, and a mechanical gripper is installed on the lifting slide; the mechanical gripper is used to clamp the cache device and transfer it to the conveying platform or the transfer and conveying system.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets a transfer and conveying system between two printing single-line systems, and realizes the transfer and conveying of silicon wafers between the two printing single-line systems through the transfer and conveying system. When a device in one of the printing single-line systems stops abnormally, the silicon plate on the printing single-line system is transported to the other printing single-line system through the transfer and conveying system to continue printing, so as to complete the processing of the silicon wafers. The stopped machine can be bypassed for effective production, and the operable machine can be reasonably utilized, which greatly reduces the loss of production capacity caused by downtime, improves the utilization rate of the entire printing line, and solves the problem of waste of production capacity caused by the inability of the entire line to effectively produce due to the abnormal shutdown of a single machine.

[0017] The present invention has a simple structure, is easy to manufacture, has low cost and strong compatibility, and can greatly reduce the impact of planned shutdowns or sudden abnormalities of the production line on production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a photovoltaic cell printing production line according to embodiment 1 of the present invention; Figure 2 This is a structural schematic diagram of a transfer and conveying device 1 in a photovoltaic cell printing production line according to embodiment 1 of the present invention; Figure 3 This is a structural schematic diagram of a transfer mechanism 1 in a photovoltaic cell printing production line according to Example 1 of the present invention; Figure 4 This is a schematic structural diagram of a photovoltaic cell printing production line according to embodiment 2 of the present invention; Figure 5 This is a structural schematic diagram of a transfer mechanism in a photovoltaic cell printing production line according to Example 2 of the present invention.

[0019] Figure numerals: 1. Silicon plate; 2. Transfer mechanism 1; 3. Conveyor line 1; 4. Buffer device; 5. Conveying platform; 6. Lifting rail; 7. Mechanical gripper. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, the present invention will be described more fully below in conjunction with specific embodiments. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of the present invention.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0022] Example 1 Reference Figure 1 This embodiment proposes a photovoltaic cell printing production line, including multiple groups of double-line printing systems, each group of double-line printing systems includes two side-by-side printing single-line systems and a transfer and conveying system arranged between the two printing single-line systems, and the transfer and conveying system is used to realize the transfer and conveying of silicon plates 1 between the two printing single-line systems.

[0023] In this embodiment, the single-line printing system includes a loader, a printing and drying mechanism, and a printing and sintering mechanism, which are arranged in sequence. The printing and drying mechanism includes a first plate accumulator, a first printing machine, a first drying oven, a second plate accumulator, a second printing machine, a second drying oven, a third plate accumulator, a third printing machine, and a third drying oven. The printing and sintering mechanism includes a fourth plate accumulator, a fourth printing machine, and a sintering oven, which are arranged in sequence.

[0024] Among them, the loader adopts the rotary loader in the existing technology, which can continuously take out the plates while changing the material rack. Plate storage machine 1, plate storage machine 2, plate storage machine 3, and plate storage machine 4 all adopt the plate storage machine equipment in the existing technology, and have the same structure. The plate storage machine is the existing technology, so they will not be described in detail here. Printing machine 1, printing machine 2, printing machine 3, and printing machine 4 all adopt the printing machine equipment in the existing technology, and have the same structure. The printing machine is the existing technology, so they will not be described in detail here. Drying furnace 1, drying furnace 2, and drying furnace 3 all adopt the drying furnace equipment in the existing technology, and have the same structure. The drying furnace is the existing technology, so they will not be described in detail here. The sintering furnace also adopts the sintering furnace equipment in the existing technology, so they will not be described in detail here. A plate flipping machine is also provided between drying furnace 2 and plate storage machine 3.

[0025] In this embodiment, the transfer and conveying system includes transfer and conveying equipment 1, transfer and conveying equipment 2, transfer and conveying equipment 3, transfer and conveying equipment 4, and transfer and conveying equipment 5.

[0026] Combine Figure 2 、 Figure 3 The transfer and conveying device 1 includes two transfer mechanisms 1 and a conveying line 1 3. The two transfer mechanisms 1 are respectively arranged at the feed ends of the board storage machines 1 of the two printing single-line systems. The conveying line 1 3 is arranged between the two transfer mechanisms 1 2 and its two ends are respectively docked with the two transfer mechanisms 2. The transfer and conveying device 2 includes two transfer mechanisms 2 and a conveying line 2. The two transfer mechanisms 2 are respectively arranged at the feed ends of the board storage machines 2 of the two printing single-line systems. The conveying line 2 is arranged between the two transfer mechanisms 2 and its two ends are respectively docked with the two transfer mechanisms 2. The transfer and conveying device 3 includes two transfer mechanisms 3 and a conveying line 3. The two transfer mechanisms 3 are respectively arranged at the feed ends of the board storage machines 3 of the two printing single-line systems. The conveying line 3 is arranged between the two transfer mechanisms 3 and its two ends are respectively docked with the two transfer mechanisms 3. The transfer and conveying device 4 includes two transfer mechanisms 4 and a conveying line 4. The two transfer mechanisms 4 are respectively arranged at the feed ends of the board storage machines 4 of the two printing single-line systems. The conveying line 4 is arranged between the two transfer mechanisms 4 and its two ends are respectively docked with the two transfer mechanisms 4. The transfer and conveying equipment 5 includes two transfer mechanisms 5 and a conveyor line 5. The two transfer mechanisms 5 are respectively arranged at the feed ends of the plate storage machines 5 of the two printing single-line systems. The conveyor line 5 is arranged between the two transfer mechanisms 5 and its two ends are respectively connected to the two transfer mechanisms 5.

[0027] Transfer Mechanisms 1-2, 2, 3, 4, and 5 of this embodiment all utilize conventional lifting and transferring equipment. For more details on the mechanisms of these lifting and transferring equipment, please refer to Chinese invention patent application No. 201610858524.3, "A Lifting and Transferring Machine." Conveyor Lines 1-3, 2, 3, 4, and 5 of this embodiment all utilize conventional belt conveyors, which will not be discussed further here.

[0028] It should be noted that all the above devices are controlled by the industrial control unit.

[0029] When each printing line system is working normally, the loader loads the silicon plate 1 to be printed to the plate storage machine 1, and the plate storage machine 1 buffers and stores the silicon plate 1 according to the production speed of the subsequent machines, and then the silicon plate 1 is transported to the printing machine 1; the printing machine 1 prints the silicon plate 1 and then transports it to the drying oven 1; the drying oven 1 dries and fixes the printed back electrode on the silicon plate 1 and transports it to the plate storage machine 2; the plate storage machine 2 buffers and stores the silicon plate 1 according to the production speed of the subsequent machines, and then transports the silicon plate 1 to the printing machine 2; the printing machine 2 prints the silicon plate 1 and then transports it to the drying oven 2; the drying oven 2 dries and fixes the printed back electrode on the silicon plate 1 and transported to the plate storage machine three; the plate storage machine three buffers and stores the silicon plate 1 according to the production speed of the subsequent machines, and then the silicon plate 1 is transported to the printing machine three; the printing machine three prints the silicon plate 1 and then transports it to the drying furnace three; the drying furnace three dries and fixes the printed back electrode on the silicon plate 1 and transports it to the flipping machine; the flipping machine flips the silicon wafer and then sends it to the plate storage machine four; the plate storage machine four buffers and stores the silicon plate 1 according to the production speed of the subsequent machines, and then the silicon plate 1 is transported to the printing machine four; the printing machine four prints the silicon plate 1 and then transports it to the sintering furnace; the sintering furnace dries and sinters the first four prints, permanently fixes them, and cools them before outputting them.

[0030] When a device in one of the printing lines experiences an abnormal shutdown, for example, Printing Machine 3, the industrial control unit receives a signal and controls the plate accumulator 3 preceding Printing Machine 3 to cache and store the silicon plates 1 dried in Drying Oven 2. If the storage space in Plate accumulator 3 is about to run out, and Printing Machine 3 following it has not yet resumed production, the industrial control unit controls the transfer mechanism 3 at the feed end of Plate accumulator 3 to raise or lower it, transferring the silicon plates 1 dried in Drying Oven 2 to Conveyor Line 3. Conveyor Line 3 transfers the silicon plates 1 to the transfer mechanism 3 at the other end, which then transfers them to Plate accumulator 3 of the normally functioning printing line, thereby completing the subsequent printing of the silicon plates 1 within the normally functioning printing line.

[0031] Example 2 Reference Figure 4 This embodiment provides a photovoltaic cell printing production line, which differs from the first embodiment in that: a plurality of double-line printing systems are arranged in parallel in sequence in this embodiment, and a wafer loading and unloading device is provided on one side of the conveyor line 1 3, conveyor line 2, conveyor line 3, conveyor line 4, and conveyor line 5 of each double-line printing system; a transfer mechanism is provided between any two adjacent double-line printing systems, and the transfer mechanism is used to realize the transfer and transportation of silicon plates 1 between the two adjacent double-line printing systems; combined with Figure 5In this embodiment, the transfer mechanism includes a buffer device 4, a conveying platform 5 and several lifting slides 6; the buffer device 4 is used to cache the silicon plate 1 on the transfer and conveying system or to convey the cached silicon plate 1 to the transfer and conveying system; the conveying platform 5 is located above each double-line printing system and is used to convey the buffer device; several lifting slides 6 are arranged vertically and several lifting slides 6 are arranged in sequence at intervals, and a lifting slide 6 is provided above each transfer and conveying system, and a mechanical clamp 7 is installed on the lifting slide 6; the mechanical clamp 7 is used to clamp the buffer device 4 and transfer it to the conveying platform 5 or the transfer and conveying system; in this embodiment, there are five transfer mechanisms, and the transfer and conveying equipment 1, transfer and conveying equipment 2, transfer and conveying equipment 3, transfer and conveying equipment 4, and transfer and conveying equipment 5 of the adjacent two-way printing systems are respectively arranged corresponding to the five transfer mechanisms. The transfer mechanism of this embodiment is further explained by taking the transfer and conveying equipment three of multiple bidirectional printing systems as an example. A lifting slide 6 is provided above the conveying line three of each transfer and conveying equipment three, and another lifting slide 6 is located above the placement position of the cache device 4. The mechanical clamp 7 on the lifting slide 6 is used to clamp the transfer cache device 4.

[0032] It should be noted that the cache device 4 of this embodiment adopts the silicon wafer basket or silicon wafer cache library in the prior art (the silicon wafer cache library in the Chinese patent application number 202222990358.6); the wafer retrieval and loading device adopts the wafer insertion machine or telescopic flower basket retrieval and loading device in the prior art (the telescopic flower basket retrieval and loading device in the Chinese patent application number 201721142055.1).

[0033] During operation, this embodiment, when both devices in the two single-line printing systems of the same dual-line printing system experience abnormal shutdowns, will be described using the example of both printers 3 in the same dual-line printing system experiencing abnormal shutdowns. The industrial control unit receives a signal and controls the plate storage unit 3 preceding the failed printer 3 to buffer and store silicon substrates 1 dried in the drying oven 2. If the storage space in plate storage unit 3 is about to run out, and the printer 3 following it has not yet resumed production, the industrial control unit activates the corresponding transfer mechanism. A mechanical gripper 7 on one of the lift rails 6 grabs a buffer device 4 at its location and transfers it to a conveyor platform 5. The conveyor platform 5 then moves the buffer device 4 forward. When the buffer device 4 moves above the conveyor line 3 between the two failed printers 3, the mechanical gripper 7 on the corresponding lift rail 6 grabs the buffer device 4 on the conveyor platform 5 and transfers it downward to the conveyor line 3 between the two printers 3. The industrial control unit then controls the corresponding transfer mechanism 3 to transfer the silicon substrate 1 dried in the drying oven 2 to the conveyor line 3. The wafer loading and unloading device on one side of the conveyor line three caches the silicon plate materials into the cache device 4; when the cache device 4 is full of silicon plates 1, the industrial control unit controls the corresponding mechanical gripper 7 to clamp the cache device 4 full of silicon plates 1 and transfer it to the conveying platform 5. The industrial control unit controls the conveying platform 5 to convey the cache device 4 full of silicon plates 1 to the top of the conveyor line three of the double-line printing system in normal operation. Then the mechanical gripper 7 on the corresponding lifting rail 6 clamps the cache device 4 full of silicon plates 1 and conveys it to the predetermined conveyor line three. The wafer loading and unloading device then takes the silicon plates 1 cached on the cache device 4 down to the conveyor line three, and conveys the silicon plates 1 to the normally operating printer three through the conveyor line three, thereby completing the subsequent printing of the silicon plates 1.

[0034] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component. When a component is considered to be "fixed to" another component, it may be directly fixed to the other component or there may be a central component.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "or / and" as used herein includes any and all combinations of one or more of the associated listed items.

[0036] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0037] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A photovoltaic cell printing production line, characterized in that: It includes at least one double-line printing system, each group of double-line printing systems includes two printing single-line systems arranged side by side and a transfer and conveying system arranged between the two printing single-line systems, and the transfer and conveying system is used to realize the transfer and conveying of silicon plates between the two printing single-line systems.

2. The photovoltaic cell printing production line according to claim 1, characterized in that: The printing single-line system comprises a feeder, a printing drying mechanism and a printing sintering mechanism which are arranged in sequence.

3. The photovoltaic cell printing production line according to claim 2, characterized in that: The printing and drying mechanism includes a plate storage machine 1, a printing machine 1, a drying furnace 1, a plate storage machine 2, a printing machine 2, a drying furnace 2, a plate storage machine 3, a printing machine 3, and a drying furnace 3, which are arranged in sequence; the printing sintering mechanism includes a plate storage machine 4, a printing machine 4, and a sintering furnace, which are arranged in sequence.

4. The photovoltaic cell printing production line according to claim 3, characterized in that: The transfer and conveying system includes a transfer and conveying device, which includes two transfer mechanisms and a conveying line. The two transfer mechanisms are respectively arranged at the feeding ends of the board storage machines of the two printing single-line systems, and the conveying line is arranged between the two transfer mechanisms and its two ends are respectively connected to the two transfer mechanisms.

5. The photovoltaic cell printing production line according to claim 3, characterized in that: The transfer and conveying system includes two transfer and conveying devices, and the two transfer and conveying devices include two transfer mechanisms and two conveying lines. The two transfer mechanisms are respectively arranged at the feeding ends of the two board storage machines of the two printing single-line systems, and the conveying line is arranged between the two transfer mechanisms and its two ends are respectively connected to the two transfer mechanisms.

6. The photovoltaic cell printing production line according to claim 3, characterized in that: The transfer and conveying system includes a transfer and conveying device three, and the transfer and conveying device three includes two transfer mechanisms three and a conveying line three. The two transfer mechanisms three are respectively arranged at the feeding ends of the board storage machines three of the two printing single-line systems, and the conveying line three is arranged between the two transfer mechanisms three and its two ends are respectively connected to the two transfer mechanisms three.

7. The photovoltaic cell printing production line according to claim 3, characterized in that: The transfer and conveying system includes a transfer and conveying device four, which includes two transfer mechanisms four and a conveying line four. The two transfer mechanisms four are respectively arranged at the feeding ends of the board storage machines four of the two printing single-line systems, and the conveying line four is arranged between the two transfer mechanisms four and its two ends are respectively connected to the two transfer mechanisms four.

8. The photovoltaic cell printing production line according to claim 3, characterized in that: The transfer and conveying system includes a transfer and conveying device five, and the transfer and conveying device five includes two transfer mechanisms five and a conveying line five. The two transfer mechanisms five are respectively arranged at the feeding ends of the board storage machines five of the two printing single-line systems, and the conveying line five is arranged between the two transfer mechanisms five and its two ends are respectively connected to the two transfer mechanisms five.

9. The photovoltaic cell printing production line according to claim 1, characterized in that: The photovoltaic cell printing production line further comprises a transfer mechanism, which is used to transfer and transport silicon panels between the double-line printing systems.

10. The photovoltaic cell printing production line according to claim 9, characterized in that: The transfer mechanism includes a buffer device, a conveying platform and a plurality of lifting slides; a sheet picking and loading device is arranged on one side of the transfer and conveying system, and the sheet picking and loading device is used to load the silicon plates on the transfer and conveying system to the buffer device or to unload the silicon plates on the buffer device to the transfer and conveying system; the conveying platform is located above each double-line printing system and is used to transport the buffer device; a plurality of lifting slides are arranged vertically and a plurality of lifting slides are arranged in sequence at intervals, and a lifting slide is arranged above each transfer and conveying system, and a mechanical gripper is installed on the lifting slide; the mechanical gripper is used to clamp the buffer device and transfer it to the conveying platform or the transfer and conveying system.

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