Feeding and discharging device

Abstract

The utility model discloses a feeding and discharging device which comprises a feeding assembly, a plurality of coating carrying tables and a discharging assembly. The feeding assembly comprises a feeding lifting basket and a feeding conveying section, and the feeding lifting basket and the feeding conveying section can relatively move up and down so that the multiple uncoated substrates can be sequentially transferred to the feeding conveying section. The feeding conveying section is used for transferring an uncoated substrate to the coating carrying table, and the coating carrying table is used for transferring the uncoated substrate to a coating station. The discharging assembly comprises a discharging lifting basket and a discharging conveying section, and the discharging lifting basket and the discharging conveying section can relatively move up and down so that the multiple coated substrates can be sequentially transferred to the discharging lifting basket. According to the feeding and discharging device, the substrates are prevented from being polluted and damaged in the transferring process, the coating quality of the substrates is improved, the quality of perovskite batteries is improved, the transferring efficiency of the substrates can be improved, and the productivity of the perovskite batteries is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating equipment, in particular to a loading and unloading device. Background Art

[0002] Solar cells are a clean, renewable energy technology. Among them, perovskite solar cells are a new type of solar cells with high efficiency and low cost. Their efficiency is much higher than traditional solar cells and they are widely used in photovoltaic power generation, electric vehicles, electronic equipment and other fields.

[0003] During the preparation of perovskite solar cells, the uncoated substrate needs to be transferred to a coating station, where a coating head coats the uncoated substrate, and then the coated substrate is transferred from the coating station. In the prior art, suction cups or clamps are usually used to transfer substrates. The suction cups can cause indentations or suction cup marks on the surface of the substrate, and the clamps can damage, deform, or even break the substrate. Suction cups and clamps not only contaminate the substrate, but also damage it, thereby reducing the quality and yield of the substrate coating. How to prevent the substrate from being contaminated and damaged during transportation is a difficult problem that urgently needs to be solved. Summary of the Invention

[0004] The purpose of the present utility model is to provide a loading and unloading device, which not only prevents the substrate from being contaminated and damaged during transportation, improves the quality of substrate coating, thereby improving the quality of perovskite cells, but also improves the transportation efficiency of the substrate, thereby increasing the production capacity of perovskite cells.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A loading and unloading device, comprising:

[0007] A loading assembly, comprising a loading basket and a loading conveying section, wherein the loading basket can hold a plurality of uncoated substrates, and the loading basket and the loading conveying section can move up and down relative to each other, so that the plurality of uncoated substrates are sequentially transferred to the loading conveying section;

[0008] A plurality of coating carriers, wherein the loading and conveying section is used to transfer the uncoated substrate to the coating carrier, and the coating carrier is used to transfer the uncoated substrate to a coating station;

[0009] The unloading component includes an unloading basket and an unloading conveying section. The unloading basket can hold multiple coated substrates. The unloading basket and the unloading conveying section can move up and down relative to each other so that the multiple coated substrates are transferred to the unloading basket in sequence.

[0010] Preferably, it also includes an annular guide rail, the coating platform is arranged on the annular guide rail and can perform circular motion along the annular guide rail, the annular guide rail includes a loading station, the coating station and an unloading station, the loading conveying section is arranged close to the loading station, and the unloading conveying section is arranged close to the unloading station.

[0011] Preferably, the loading and conveying section includes a first loading and conveying section and a second loading and conveying section, the two ends of the first loading and conveying section are respectively arranged close to the second loading and conveying section and the loading basket, and one end of the second loading and conveying section is arranged close to the loading station, and the first loading and conveying section and the second loading and conveying section can move up and down relative to each other, so that the uncoated substrate is transferred from the first loading and conveying section to the second loading and conveying section;

[0012] The unloading and conveying section includes a first unloading and conveying section and a second unloading and conveying section. The two ends of the first unloading and conveying section are respectively arranged close to the second unloading and conveying section and the unloading station. One end of the second unloading and conveying section is arranged close to the unloading basket. The first unloading and conveying section and the second unloading and conveying section can move up and down relative to each other so that the coated substrate can be moved from the first unloading and conveying section to the second unloading and conveying section.

[0013] Preferably, the projection areas of the first loading conveying section and the second loading conveying section on the horizontal plane overlap, and the projection areas of the first unloading conveying section and the second unloading conveying section on the horizontal plane overlap;

[0014] The first loading conveying section, the second loading conveying section, the first unloading conveying section and the second unloading conveying section each have two parallelly arranged transmission devices, the distance between the two transmission devices of the second loading conveying section is greater than the width of the first loading conveying section, so that at least part of the two transmission devices of the first loading conveying section can be accommodated between the two transmission devices of the second loading conveying section, and the distance between the two transmission devices of the first unloading conveying section is greater than the width of the first unloading conveying section, so that at least part of the two transmission devices of the second unloading conveying section can be accommodated between the two transmission devices of the first unloading conveying section.

[0015] Preferably, the transmission device includes a transmission belt, a first driving device and a tensioning wheel, wherein the first driving device is used to drive the transmission belt to operate, and the tensioning wheel is used to give the transmission belt tension.

[0016] Preferably, the system further comprises a control assembly, the control assembly comprising a controller, a first sensing device provided in the first loading and conveying section, a second sensing device provided in the second loading and conveying section, a third sensing device provided in the first unloading and conveying section, and a fourth sensing device provided in the second unloading and conveying section;

[0017] The first sensing device is used to detect the position of the substrate located on the first loading and conveying section, the second sensing device is used to detect the position of the substrate located on the second loading and conveying section, the third sensing device is used to detect the position of the substrate located on the first unloading and conveying section, and the fourth sensing device is used to detect the position of the substrate located on the second unloading and conveying section. The controller is used to control the loading assembly and the unloading assembly to transfer the substrate.

[0018] Preferably, the control component further comprises a fifth sensing device provided on the coating platform, and the fifth sensing device is used to detect whether the substrate is placed on the coating platform.

[0019] Preferably, the loading assembly includes a second driving device and a third driving device, the second driving device is used to drive the loading basket to move up and down, and the third driving device is used to drive the second loading conveying section to move up and down;

[0020] The unloading assembly includes a fourth drive device and a fifth drive device. The fourth drive device is used to drive the loading basket to move up and down, and the fifth drive device is used to drive the first unloading conveying section to move up and down.

[0021] Preferably, the coating platform includes a carrying platform and a support seat, and a sixth driving device arranged between the carrying platform and the support seat, and the sixth driving device is used to drive the carrying platform to move up and down.

[0022] Preferably, the number of the sixth driving devices is two or three. When the number of the sixth driving devices is two, the two sixth driving devices are respectively arranged at both ends of the carrying platform in the length direction of the substrate, or the two sixth driving devices are respectively arranged at both ends of the carrying platform in the width direction of the substrate.

[0023] When the number of the sixth driving devices is three, the three sixth driving devices are distributed in a triangle.

[0024] Compared with the prior art, the beneficial effects of the present invention include at least:

[0025] In the loading and unloading device of the present invention, when the loading and unloading conveying sections transfer the substrates, the side of the substrate that does not need to be coated is located in the loading and unloading conveying sections, while the side of the substrate that needs to be coated is facing away from the loading and unloading conveying sections. In this way, the loading and unloading conveying sections have no clamping force on the substrate, which not only prevents the substrate from being contaminated and damaged during transportation, improves the quality of substrate coating, and thus improves the quality of perovskite cells. Moreover, the loading assembly, multiple coating platforms and unloading assembly cooperate with each other, the loading assembly can transfer uncoated substrates to the coating platform in time, and the unloading assembly can remove the coated substrates from the coating platform in time, which greatly improves the transportation efficiency of the substrates, thereby improving the coating efficiency of the coating assembly, and further improving the production capacity of the perovskite cell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the loading and unloading device of the embodiment of the utility model.

[0027] Figure 2 It is a schematic plan view of the structure of the loading and unloading device of the embodiment of the present utility model.

[0028] Figure 3 It is a three-dimensional structural schematic diagram of the loading and unloading device and the coating component of an embodiment of the utility model.

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the magnetic drive sub-slider and the coating carrier in the embodiment of the utility model.

[0030] In the figure: 100, loading and unloading device; 1, loading assembly; 11, loading basket; 111, partition; 12, loading conveying section; 121, first loading conveying section; 122, second loading conveying section; 2, coating carrier; 21, carrier; 22, support seat; 23, sixth driving device; 24, adsorption device; 3, unloading assembly; 31, unloading basket; 32, unloading conveying section; 321, first unloading conveying section; 322, second unloading conveying section Feeding section; 33. Transmission device; 331. Transmission belt; 332. First driving device; 333. Tensioning wheel; 4. Annular guide rail; 41. Loading station; 42. Coating station; 43. Unloading station; 44. First linear guide rail; 45. Second linear guide rail; 46. First curved guide rail; 47. Second curved guide rail; 48. Magnetic drive sub-slider; 5. Control component; 51. Seventh sensing device; 200. Substrate; 300. Coating component. DETAILED DESCRIPTION

[0031] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure more comprehensive and complete and to fully convey the concepts of the example embodiments to those skilled in the art. Identical reference numerals in the figures denote identical or similar structures, and thus repeated descriptions thereof will be omitted.

[0032] The words expressing positions and directions described in this utility model are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of this utility model.

[0033] refer to Figures 1 to 4 The present invention provides a loading and unloading device 100, comprising: a loading assembly 1, a plurality of coating stages 2, and a unloading assembly 3. The loading assembly 1 transfers an uncoated substrate 200 to the coating stage 2, which transfers the uncoated substrate 200 to a coating station 42. A coating assembly 300 is provided at the coating station 42, which coats the uncoated substrate 200. The unloading assembly 3 removes the coated substrate 200 from the coating stage 2. The loading and unloading device 100 may further include an annular guide rail 4, on which the coating stage 2 can circulate. The substrate 200 may be a crystalline silicon substrate, a glass substrate, or the like.

[0034] Specifically, the loading component 1 may include a loading basket 11 and a loading conveying section 12. The loading basket 11 can hold multiple uncoated substrates 200. A multi-layer partition 111 is provided on the loading basket 11. Each layer of partition 111 can store at least one uncoated substrate 200. The partition 111 can separate multiple uncoated substrates 200 from each other. The multi-layer partition 111 is distributed in the vertical direction. Multiple uncoated substrates 200 are placed in the loading basket 11 in sequence in the vertical direction. The loading conveying section 12 can be two parallel transmission devices 33. The transmission device 33 is used to convey the uncoated substrates 200. The loading basket 11 and the loading conveying section 12 can move up and down relative to each other so that multiple uncoated substrates 200 are transferred to the loading conveying section 12 in sequence.

[0035] In this embodiment, the loading assembly 1 may include a second driving device (not shown), which is used to drive the loading basket 11 to move up and down, that is, the loading basket 11 can move up and down relative to the loading conveying section 12, so that the transmission device 33 contacts the uncoated substrate 200. Under the action of the driving force of the transmission device 33, the transmission device 33 transports the uncoated substrate 200 to the coating carrier 2. When the loading basket 11 and the loading conveying section 12 move up and down relative to each other again, the loading conveying section 12 is switched to another layer of the partition 111 of the loading basket 11, and the transmission device 33 contacts the next uncoated substrate 200. Under the action of the driving force of the transmission device 33, the transmission device 33 transports the uncoated substrate 200 to the coating carrier 2, and this cycle is repeated.

[0036] The unloading component 3 may include an unloading basket 31 and an unloading conveying section 32. The unloading basket 31 can hold multiple coated substrates 200. The unloading basket 31 is also provided with multi-layer partitions 111. Each layer of partitions 111 can store at least one coated substrate 200. The partitions 111 can separate multiple coated substrates 200 from each other. The multi-layer partitions 111 are distributed in the vertical direction. Multiple coated substrates 200 are placed in the unloading basket 31 in sequence in the vertical direction. The unloading conveying section 32 can be two parallel transmission devices 33. The transmission device 33 is used to transport the coated substrates 200 on the coating carrier 2 to the unloading basket 31. The unloading basket 31 and the unloading conveying section 32 can move up and down relative to each other so that multiple coated substrates 200 can be transferred to the unloading basket 31 in sequence.

[0037] In this embodiment, the unloading assembly 3 may include a fourth driving device (not shown), which is used to drive the unloading basket 31 to move up and down, that is, the unloading basket 31 can move up and down relative to the unloading conveying section 32, so that the unloading conveying section 32 is aligned with the partition 111 of the unloading basket 31, and under the action of the driving force of the transmission device 33, the transmission device 33 conveys the coated substrate 200 on the coating carrier 2 to the unloading basket 31. When the unloading basket 31 and the unloading conveying section 32 move up and down relative to each other again, the unloading conveying section 32 is switched to another layer of partition 111 of the unloading basket 31, and under the action of the driving force of the transmission device 33, the transmission device 33 conveys the coated substrate 200 on the coating carrier 2 to the unloading basket 31, and this cycle is repeated.

[0038] When the loading and conveying section 12 and the unloading and conveying section 32 transfer the substrate 200, the side of the substrate 200 that does not need to be coated is located in the loading and conveying section 12 and the unloading and conveying section 32, and the side of the substrate 200 that needs to be coated is facing away from the loading and conveying section 12 and the unloading and conveying section 32. This prevents the side of the substrate 200 that needs to be coated from being contaminated during the transportation process, and the loading and conveying section 12 and the unloading and conveying section 32 have no clamping force on the substrate 200, thereby preventing the substrate 200 from being damaged during the transportation process, thereby improving the coating quality of the substrate 200 and thus improving the quality of the perovskite cell.

[0039] There are multiple coating platforms 2, and multiple coating platforms 2 can be simultaneously located at the loading station 41, the coating station 42, and the unloading station 43. Of course, some coating platforms 2 can be located at other locations. Each coating platform 2 can hold one or more substrates 200. In this embodiment, each coating platform 2 holds one substrate 200. Each coating platform 2 can operate independently, that is, the multiple coating platforms 2 will not interfere with each other.

[0040] With the cooperation of the loading component 1, multiple coating carriers 2 and the unloading component 3, the loading component 1 can transfer the uncoated substrate 200 to the coating carrier 2 in a timely manner, the coating carrier 2 can transfer the uncoated substrate 200 to the coating station 42, the coating head of the coating component 300 coats the uncoated substrate 200, and the unloading component 3 can remove the coated substrate 200 from the coating carrier 2 in a timely manner, greatly improving the transportation efficiency of the substrate 200, thereby improving the coating efficiency of the coating component 300, and thus improving the production capacity of the perovskite battery. In this embodiment, the coating carrier 2 continuously enters the coating station 42, and the coating component 300 can continuously coat the uncoated substrate 200, which greatly improves the production capacity of the perovskite battery.

[0041] In a specific embodiment, the loading and unloading device 100 may further include an annular guide rail 4, the coating carrier 2 is arranged on the annular guide rail 4 and can perform a circular motion along the annular guide rail 4, the annular guide rail 4 may include a loading station 41, a coating station 42 and a unloading station 43, the loading and conveying section 12 is arranged near the loading station 41, the unloading and conveying section 32 is arranged near the unloading station 43, and the coating assembly 300 is located at the coating station 42. The annular guide rail 4 as a whole can be circular, elliptical or approximately elliptical in shape. As a preferred embodiment, the annular guide rail 4 as a whole is approximately elliptical, and the annular guide rail 4 can have a first linear guide rail 44 and a second linear guide rail 45 arranged opposite to each other, and a first curved guide rail 46 and a second curved guide rail 47 arranged opposite to each other, and the first curved guide rail 46, the first linear guide rail 44, the second curved guide rail 47 and the second linear guide rail 45 are connected end to end in sequence. The first linear guide 44 and the second linear guide 45 can be arranged on the same horizontal plane, that is, the annular guide 4 is arranged parallel to the horizontal plane. The first linear guide 44 and the second linear guide 45 can also be arranged at a certain angle, that is, the annular guide 4 is arranged at a certain angle to the horizontal plane. In this embodiment, the annular guide 4 is arranged perpendicular to the horizontal plane, and the first linear guide 44 can be arranged above the second linear guide 45. The loading station 41, the coating station 42, and the unloading station 43 are all located on the first linear guide 44, with the loading station 41 and the unloading station 43 respectively located near the ends of the first linear guide 44, and the coating station 42 is located near the center of the first linear guide 44.

[0042] As a preferred embodiment, a plurality of magnetic drive sub-sliders 48 can be provided on the annular guide rail 4, and the coating platform 2 can be provided on the magnetic drive sub-sliders 48. The magnetic drive sub-sliders 48 can drive the coating platform 2 to circulate on the annular guide rail 4. The magnetic drive sub-sliders 48 can drive the coating platform 2 to circulate on the annular guide rail 4. When the magnetic drive sub-sliders 48 are located on the first linear guide rail 44, the upper surface of the coating platform 2 is set upward, and when the magnetic drive sub-sliders 48 are located on the second linear guide rail 45, the upper surface of the coating platform 2 is set downward. The magnetic drive sub-sliders 48 can rotate clockwise or counterclockwise on the annular guide rail 4. In this embodiment, the magnetic drive sub-sliders 48 rotate counterclockwise on the annular guide rail 4, that is, the magnetic drive sub-sliders 48 drive the coating platform 2 to rotate counterclockwise on the annular guide rail 4.

[0043] In a specific embodiment, the loading and conveying section 12 may include a first loading and conveying section 121 and a second loading and conveying section 122. The two ends of the first loading and conveying section 121 are respectively arranged close to the second loading and conveying section 122 and the loading basket 11, and one end of the second loading and conveying section 122 is arranged close to the loading station 41. The first loading and conveying section 121 and the second loading and conveying section 122 can move up and down relative to each other, so that the uncoated substrate 200 is moved from the first loading and conveying section 121 to the second loading and conveying section 122, and the second loading and conveying section 122 transfers the uncoated substrate 200 to the coating carrier 2. In this embodiment, the loading assembly 1 may include a third driving device (not shown), which is used to drive the second loading conveying section 122 to move up and down, that is, the second loading conveying section 122 can move up and down relative to the first loading conveying section 121. When the second loading conveying section 122 moves to the first loading conveying section 121, the uncoated substrate 200 on the first loading conveying section 121 is transferred to the second loading conveying section 122. At the same time, the empty coating platform 2 can be moved along the annular guide rail 4 to the loading station 41 to avoid interference between the coating platform 2 and the second loading conveying section 122. Compared with the one-stage loading and conveying section 12, the present application divides the loading and conveying section 12 into two sections, namely the first loading and conveying section 121 and the second loading and conveying section 122. The second loading and conveying section 122 transfers the uncoated substrate 200 moved by the first loading and conveying section 121 to the coating carrier 2, which can also shorten the transfer distance and time of the uncoated substrate 200 and improve the efficiency of the transfer of the substrate 200.

[0044] The unloading conveying section 32 may include a first unloading conveying section 321 and a second unloading conveying section 322. The two ends of the first unloading conveying section 321 are respectively arranged close to the second unloading conveying section 322 and the unloading station 43, and one end of the second unloading conveying section 322 is arranged close to the unloading basket 31. The first unloading conveying section 321 and the second unloading conveying section 322 can move up and down relative to each other so that the coated substrate 200 can be moved from the first unloading conveying section 321 to the second unloading conveying section 322. In this embodiment, the unloading assembly 3 may include a fifth drive device (not shown), which is used to drive the first unloading conveying section 321 to move up and down, that is, the first unloading conveying section 321 can move up and down relative to the second unloading conveying section 322. When the coated substrate 200 on the coating carrier 2 is transferred to the first unloading conveying section 321, the first unloading conveying section 321 moves to the second unloading conveying section 322, and the coated substrate 200 on the first unloading conveying section 321 is transferred to the second unloading conveying section 322. At the same time, the empty coating carrier 2 can leave the unloading station 43 along the annular guide rail 4 to avoid interference between the coating carrier 2 and the first unloading conveying section 321. Compared with the unloading conveying section 32 being a one-stage type, the present application divides the unloading conveying section 32 into two sections, namely the first unloading conveying section 321 and the second unloading conveying section 322, which also speeds up the efficiency of transferring the coated substrate 200.

[0045] As a preferred embodiment, the projections of the first loading conveyor section 121 and the second loading conveyor section 122 on the horizontal plane partially overlap, thereby making it more stable for the uncoated substrate 200 to move from the first loading conveyor section 121 to the second loading conveyor section 122. The projections of the first unloading conveyor section 321 and the second unloading conveyor section 322 on the horizontal plane partially overlap, thereby making it more stable for the coated substrate 200 to move from the first unloading conveyor section 321 to the second unloading conveyor section 322.

[0046] The first loading conveying section 121, the second loading conveying section 122, the first unloading conveying section 321, and the second unloading conveying section 322 each have two parallel transmission devices 33. The transmission device 33 may include a transmission belt 331, a first drive device 332, and a tensioning pulley 333. The first drive device 332 is used to drive the transmission belt 331, and the tensioning pulley 333 is used to provide tension to the transmission belt 331.

[0047] The distance between the two conveying devices 33 of the second loading and conveying section 122 can be greater than the width of the first loading and conveying section 121, so that at least part of the two conveying devices 33 of the first loading and conveying section 121 can be accommodated between the two conveying devices 33 of the second loading and conveying section 122. The width of the substrate 200 is greater than the width of the first loading and conveying section 121, and the width of the substrate 200 is greater than the distance between the two conveying devices 33 of the second loading and conveying section 122.

[0048] The distance between the two conveying devices 33 of the first unloading and conveying section 321 is greater than the width of the first unloading and conveying section 321, so that at least part of the two conveying devices 33 of the second unloading and conveying section 322 can be accommodated between the two conveying devices 33 of the first unloading and conveying section 321. The width of the substrate 200 is greater than the width of the second unloading and conveying section 322, and the width of the substrate 200 is greater than the distance between the two conveying devices 33 of the first unloading and conveying section 321.

[0049] In one specific embodiment, the loading and unloading device 100 may further include a control assembly 5, which may include a controller (not shown) and a first sensing device (not shown) provided at the first loading and conveying section 121, a second sensing device (not shown) provided at the second loading and conveying section 122, a third sensing device (not shown) provided at the first unloading and conveying section 321, and a fourth sensing device (not shown) provided at the second unloading and conveying section 322, all connected to the controller via a wired or wireless connection. The controller is used to control the loading assembly 1 and the unloading assembly 3 to transfer the substrate 200. The first sensing device is used to detect the position of the substrate 200 located on the first loading and conveying section 121. When the first sensing device detects that there is no substrate 200 in the first loading and conveying section 121, the controller controls the first driving device 332 on the first loading and conveying section 121 to transfer the substrate 200 to the first loading and conveying section 121. The second sensing device is used to detect the position of the substrate 200 located on the second loading and conveying section 122. When the second sensing device detects that there is no substrate 200 in the second loading and conveying section 122, the controller controls the third driving device to drive the second loading and conveying section 122 to move upward, and the controller controls the first driving device 332 on the first loading and conveying section 121 or the second loading and conveying section 122 to transfer the substrate 200 to the second loading and conveying section 122. The third sensing device is used to detect the position of the substrate 200 located on the first unloading and conveying section 321. When the third sensing device detects that there is a substrate 200 in the first unloading and conveying section 321, the controller controls the third driving device to drive the first unloading and conveying section 321 to move upward, and the controller controls the first driving device 332 on the first unloading and conveying section 321 to transfer the substrate 200 to the second unloading and conveying section 322. The fourth sensing device is used to detect the position of the substrate 200 on the second unloading conveyor section 322. When the fourth sensing device detects the presence of a substrate 200 on the second unloading conveyor section 322, the controller controls the first drive device 332 on the second unloading conveyor section 322 to transfer the substrate 200 to the unloading basket 31. The controller can also control the second drive device to drive the loading basket 11 downward, and the controller can control the fifth drive device to drive the unloading basket 31 upward.

[0050] The control assembly 5 may also include a fifth sensing device (not shown) disposed on the coating platform 2, a sixth sensing device (not shown) disposed on the magnetic drive sub-slider 48, and a seventh sensing device 51 disposed on the annular guide rail 4. The fifth sensing device is used to detect whether a substrate 200 is placed on the coating platform 2. This prevents a coating platform 2 without a substrate 200 from moving to the coating station 42, thereby preventing the coating platform 2 from being contaminated by the coating liquid. It also prevents a coating platform 2 with a substrate 200 from moving to the loading station 41, thereby preventing multiple substrates 200 from being stacked on the same coating platform 2. The sixth and seventh sensing devices 51 are used to detect the position of the magnetic drive sub-slider 48 on the annular guide rail 4. The controller is used to control the speed of movement of the magnetic drive sub-slider 48. When the magnetic drive sub-slider 48 approaches the seventh sensing device 51, the sixth and seventh sensing devices 51 can recognize each other, that is, the position of the magnetic drive sub-slider 48 on the annular guide rail 4 can be determined by the sixth and seventh sensing devices 51. The controller can be connected to the fifth sensing device, the sixth sensing device and the seventh sensing device 51 through wired or wireless connections. The controller can control the speed of movement of the magnetic drive sub-slider 48 based on the position information of the magnetic drive sub-slider 48 on the annular guide rail 4 fed back by the sixth sensing device.

[0051] There are multiple seventh sensing devices 51, and the multiple sensing devices are respectively set at different positions of the annular guide rail 4. For example, the seventh sensor can be set at the loading station 41, the unloading station 43, etc. When the magnetic drive sub-slider 48 is located at different positions of the annular guide rail 4, the controller can control the magnetic drive sub-slider 48 to have different moving speeds as needed. When the coating carrier 2 drives the substrate 200 to move to the coating station 42, the controller can control the magnetic drive sub-slider 48 to move at a uniform speed to ensure the uniformity of the coating. After the coated substrate 200 on the coating carrier 2 is transferred, the controller can control the magnetic drive sub-slider 48 to accelerate the movement to improve the moving efficiency of the magnetic drive sub-slider 48 and ensure that the coating carrier 2 can reach the loading station 41 in time.

[0052] In one embodiment, the coating platform 2 may include a carrier 21, a support base 22, and a sixth drive device 23 disposed between the carrier 21 and the support base 22. The sixth drive device 23 can drive the carrier 21 to move upward and downward, thereby driving the substrate 200 to move upward and downward, so that the distance between the upper surface of the substrate 200 located on different coating platforms 2 and the coating assembly 300 is equal. This not only adjusts the thickness of the coating liquid coated on the substrate 200, but also ensures that the coating liquid is evenly coated on the substrate 200, thereby improving the photoelectric conversion efficiency of the perovskite cell. The sixth drive device 23 can be a piezoelectric ceramic actuator. In this way, the sixth drive device 23 not only drives the carrier 21 to move upward and downward, but also provides support for the carrier 21.

[0053] Specifically, the number of sixth drive devices 23 is two or three, although the number of sixth drive devices 23 may also be one or more than three. When there are two sixth drive devices 23, the two sixth drive devices 23 can be respectively disposed at both ends of the carrier 21 in the length direction of the substrate 200, with the length direction of the substrate 200 being in the same direction as the coating direction. When there are two sixth drive devices 23, the two sixth drive devices 23 can also be respectively disposed at both ends of the carrier 21 in the width direction of the substrate 200, with the width direction of the substrate 200 being perpendicular to the coating direction.

[0054] The two sixth drive devices 23 can simultaneously drive the two ends of the carrier platform 21 to move in the same direction, or simultaneously drive the two ends of the carrier platform 21 to move in opposite directions, or one of the sixth drive devices 23 can drive one end of the carrier platform 21 to move while the other sixth drive device 23 remains stationary. In other words, the two sixth drive devices 23 are independent of each other and can simultaneously drive the carrier platform 21 together or independently. When the carrier platform 21 needs to be raised or lowered as a whole, the two sixth drive devices 23 can simultaneously drive the carrier platform 21 to rise or fall, and can maintain the relative level of the two ends of the carrier platform 21. When one end of the carrier platform 21 needs to be raised and the other end needs to be lowered, one sixth drive device 23 can drive one end of the carrier platform 21 to rise, and the other sixth drive device 23 can drive the other end of the carrier platform 21 to fall. When only one end of the carrier platform 21 needs to be raised or lowered, only one sixth drive device 23 is needed to drive the end of the carrier platform 21 that needs to be raised or lowered.

[0055] In this embodiment, the two sixth driving devices 23 are independently arranged with respect to each other, and the position of the carrier 21 can be adjusted according to actual needs. When the two sixth driving devices 23 are respectively arranged at the two ends of the carrier 21 in the length direction of the substrate 200, the problem of one high and one low end of the carrier 21 or one high and one low end of the substrate 200 caused by parts processing errors, assembly errors, etc. in the length direction of the substrate 200 can be eliminated, so as to ensure that the surface of the substrate 200 remains parallel to the coating head, that is, to ensure that the distance from the upper surface of the substrate 200 located on different coating carriers 2 to the coating head is equal, which not only can adjust the thickness of the coating liquid coated on the substrate 200, but also can make the coating liquid uniformly coated on the substrate 200, thereby improving the photoelectric conversion efficiency of the perovskite cell.

[0056] When the two sixth driving devices 23 are respectively arranged at the two ends of the carrier 21 in the width direction of the substrate 200, the problem of one high and one low end of the carrier 21 or one high and one low end of the substrate 200 caused by part processing errors, assembly errors, etc. in the width direction of the substrate 200 can be eliminated, so as to ensure that the surface of the substrate 200 remains parallel to the coating head, that is, to ensure that the distance from the upper surface of the substrate 200 located on different coating carriers 2 to the coating head is equal, which not only can adjust the thickness of the coating liquid coated on the substrate 200, but also can make the coating liquid uniformly coated on the substrate 200, thereby improving the photoelectric conversion efficiency of the perovskite cell.

[0057] When there are three sixth drive devices 23, the three sixth drive devices 23 are distributed in a triangle, and the three sixth drive devices 23 are also preferably independent of each other. The three sixth drive devices 23 can ensure that the carrier 21 remains balanced, making the lifting of the carrier 21 more stable. Furthermore, the three sixth drive devices 23 can ensure that each sixth drive device 23 is subjected to uniform force. In other words, each sixth drive device 23 bears a uniform load, making the operation of each sixth drive device 23 more stable and smooth. This can also prevent the sixth drive device 23 from being affected by excessive load, which could affect positioning accuracy or cause damage to the sixth drive device 23.

[0058] The carrier 21 may be provided with an adsorption device 24. When the substrate 200 is placed on the carrier 21, the adsorption device 24 may fix the substrate 200 to prevent the position of the substrate 200 from shifting, and may also prevent the substrate 200 from warping, thereby making the surface of the substrate 200 smoother and improving the uniformity of the coating. In some embodiments, the carrier 21 itself is the adsorption device 24. As a preferred embodiment, the controller may control the adsorption device 24. After the loading component 1 transfers the uncoated substrate 200 to the coating carrier 2, the controller controls the adsorption device 24 to adsorb and fix the uncoated substrate 200 to prevent the position of the uncoated substrate 200 from shifting. When the substrate 200 is coated and the unloading component 3 needs to transfer the coated substrate 200, the controller controls the adsorption device 24 to release the coated substrate 200 to facilitate the unloading component 3 to transfer the coated substrate 200.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limiting the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the utility model without departing from the principles and purpose of the utility model. All of these changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A loading and unloading device, characterized in that: include: A loading assembly, comprising a loading basket and a loading conveying section, wherein the loading basket can hold a plurality of uncoated substrates, and the loading basket and the loading conveying section can move up and down relative to each other, so that the plurality of uncoated substrates are sequentially transferred to the loading conveying section; A plurality of coating carriers, wherein the loading and conveying section is used to transfer the uncoated substrate to the coating carrier, and the coating carrier is used to transfer the uncoated substrate to a coating station; The unloading component includes an unloading basket and an unloading conveying section. The unloading basket can hold multiple coated substrates. The unloading basket and the unloading conveying section can move up and down relative to each other so that the multiple coated substrates are transferred to the unloading basket in sequence.

2. The loading and unloading device according to claim 1, characterized in that: It also includes an annular guide rail, the coating carrier is arranged on the annular guide rail and can perform circular motion along the annular guide rail, the annular guide rail includes a loading station, the coating station and an unloading station, the loading conveying section is arranged close to the loading station, and the unloading conveying section is arranged close to the unloading station.

3. The loading and unloading device according to claim 2, characterized in that: The loading and conveying section includes a first loading and conveying section and a second loading and conveying section, wherein both ends of the first loading and conveying section are respectively arranged close to the second loading and conveying section and the loading basket, and one end of the second loading and conveying section is arranged close to the loading station, and the first loading and conveying section and the second loading and conveying section are capable of moving up and down relative to each other, so that the uncoated substrate is transferred from the first loading and conveying section to the second loading and conveying section; The unloading and conveying section includes a first unloading and conveying section and a second unloading and conveying section. The two ends of the first unloading and conveying section are respectively arranged close to the second unloading and conveying section and the unloading station. One end of the second unloading and conveying section is arranged close to the unloading basket. The first unloading and conveying section and the second unloading and conveying section can move up and down relative to each other so that the coated substrate can be moved from the first unloading and conveying section to the second unloading and conveying section.

4. The loading and unloading device according to claim 3, characterized in that: The projection areas of the first loading conveying section and the second loading conveying section on the horizontal plane overlap, and the projection areas of the first unloading conveying section and the second unloading conveying section on the horizontal plane overlap; The first loading conveying section, the second loading conveying section, the first unloading conveying section and the second unloading conveying section each have two parallelly arranged transmission devices, the distance between the two transmission devices of the second loading conveying section is greater than the width of the first loading conveying section, so that at least part of the two transmission devices of the first loading conveying section can be accommodated between the two transmission devices of the second loading conveying section, and the distance between the two transmission devices of the first unloading conveying section is greater than the width of the first unloading conveying section, so that at least part of the two transmission devices of the second unloading conveying section can be accommodated between the two transmission devices of the first unloading conveying section.

5. The loading and unloading device according to claim 4, characterized in that: The transmission device includes a transmission belt, a first driving device and a tensioning wheel. The first driving device is used to drive the transmission belt to operate, and the tensioning wheel is used to make the transmission belt have tension.

6. The loading and unloading device according to claim 3, characterized in that: The device further includes a control assembly, the control assembly including a controller, a first sensing device provided at the first loading and conveying section, a second sensing device provided at the second loading and conveying section, a third sensing device provided at the first unloading and conveying section, and a fourth sensing device provided at the second unloading and conveying section; The first sensing device is used to detect the position of the substrate located on the first loading and conveying section, the second sensing device is used to detect the position of the substrate located on the second loading and conveying section, the third sensing device is used to detect the position of the substrate located on the first unloading and conveying section, and the fourth sensing device is used to detect the position of the substrate located on the second unloading and conveying section. The controller is used to control the loading assembly and the unloading assembly to transfer the substrate.

7. The loading and unloading device according to claim 6, characterized in that: The control component further includes a fifth sensing device disposed on the coating platform, and the fifth sensing device is used to detect whether the substrate is placed on the coating platform.

8. The loading and unloading device according to claim 3, characterized in that: The loading assembly includes a second driving device and a third driving device, the second driving device is used to drive the loading basket to move up and down, and the third driving device is used to drive the second loading conveying section to move up and down; The unloading assembly includes a fourth drive device and a fifth drive device. The fourth drive device is used to drive the loading basket to move up and down, and the fifth drive device is used to drive the first unloading conveying section to move up and down.

9. The loading and unloading device according to claim 1, characterized in that: The coating carrier includes a carrier platform, a support seat, and a sixth driving device arranged between the carrier platform and the support seat, and the sixth driving device is used to drive the carrier platform to move up and down.

10. The loading and unloading device according to claim 9, characterized in that: The number of the sixth driving devices is two or three. When the number of the sixth driving devices is two, the two sixth driving devices are respectively arranged at both ends of the carrier platform in the length direction of the substrate, or the two sixth driving devices are respectively arranged at both ends of the carrier platform in the width direction of the substrate; When the number of the sixth driving devices is three, the three sixth driving devices are distributed in a triangle.

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