Turnover device, apparatus and tray

Abstract

The application is suitable for the technical field of batteries, and provides a turnover device, equipment and a tray. The turnover device is used for turning over the tray and comprises a mounting seat, a mounting frame, a plurality of first conveying shafts, a plurality of second conveying shafts and a plurality of grabbing assemblies. The mounting frame is rotatably arranged on the mounting seat. The first conveying shafts and the second conveying shafts are rotatably arranged on the mounting frame and are spaced apart along a first direction. The plane on which the second conveying shafts are arranged is spaced apart from and parallel to the plane on which the first conveying shafts are arranged. The grabbing assemblies are arranged on the mounting frame. Part of the grabbing assemblies are used for grabbing the tray through the gap between two adjacent first conveying shafts, and the other part of the grabbing assemblies are used for grabbing the tray through the gap between two adjacent second conveying shafts. In the application, the product does not need to be taken out from the tray, turned over and then put into the tray when the product is turned over, the efficiency of turning over the product is improved, and thus the efficiency of double-sided film plating of the product is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of batteries, in particular to a turnover device, equipment and tray. BACKGROUND

[0002] With the rapid rise of the new energy industry, the photovoltaic industry has also developed rapidly. The photovoltaic industry chain formed by the application and development of silicon materials is called "photovoltaic industry". Solar cell panels are one of the main products of the photovoltaic industry, and the main material of solar cell panels is silicon wafers made of single crystal silicon or polycrystalline silicon. In the process of manufacturing solar cell panels, the double sides of the silicon wafers need to be coated.

[0003] At present, the process flow of double-sided coating of silicon wafers is to first place the silicon wafers into the accommodating cavities on the tray, and then coat the top surface of the silicon wafers. After the top surface of the silicon wafers is coated, the silicon wafers are taken out of the tray, and the silicon wafers are turned over 180° by using a turnover device, and then the turned-over silicon wafers are placed into the accommodating cavities on the tray to coat the other side of the silicon wafers, thereby realizing double-sided coating of the silicon wafers.

[0004] However, the above-mentioned coating method of the silicon wafers requires taking the silicon wafers out of the tray after coating one side of the silicon wafers, then turning over the silicon wafers, and then placing the turned-over silicon wafers into the accommodating cavities on the tray again, which results in low coating efficiency of the silicon wafers and affects the production efficiency of the solar cell panels. SUMMARY

[0005] The present application provides a turnover device, equipment and tray, which can improve the coating efficiency of the silicon wafers.

[0006] To achieve the above-mentioned purpose, in a first aspect, the present application provides a turnover device for turning over a tray, the turnover device comprising:

[0007] a mounting seat;

[0008] a mounting frame, the mounting frame being rotatably arranged on the mounting seat;

[0009] a plurality of first conveying shafts, the first conveying shafts being rotatably arranged on the mounting frame and being arranged at intervals along a first direction;

[0010] a plurality of second conveying shafts, the second conveying shafts being rotatably arranged on the mounting frame and being arranged at intervals along the first direction, and the planes in which the second conveying shafts are arranged are arranged at intervals and parallel to the planes in which the first conveying shafts are arranged;

[0011] Two or more groups of grabbing components are arranged on the mounting frame, and some of the grabbing components are used to grab the tray through the gap between two adjacent first conveying shafts, and the other grabbing components are used to grab the tray through the gap between two adjacent second conveying shafts.

[0012] The first direction is perpendicular to the axis of the first conveying shaft.

[0013] In some possible implementation manners of the first aspect, the first conveying shaft and the first conveying shaft, the second conveying shaft and the second conveying shaft, and the first conveying shaft and the second conveying shaft are synchronously connected.

[0014] In some possible implementation manners of the first aspect, the overturning device further comprises:

[0015] A first gear is arranged on the first conveying shaft.

[0016] A second gear is arranged on the second conveying shaft, and the second gear is in mesh with the first gear.

[0017] A first pulley is arranged on the first conveying shaft.

[0018] A second pulley is arranged on the second conveying shaft.

[0019] A synchronous belt is connected to the first pulley and / or the second pulley.

[0020] In some possible implementation manners of the first aspect, the overturning device further comprises:

[0021] A first input gear is arranged on the first conveying shaft.

[0022] A second input gear is arranged on the second conveying shaft, and the second input gear is symmetric to the first input gear about the center line of rotation of the mounting frame.

[0023] An output gear is used to mesh with the first input gear or the second input gear.

[0024] A first driver is arranged on the output shaft of the output gear, and the first driver is used to drive the output gear to rotate, and the first driver is arranged on the mounting seat.

[0025] In some possible implementation manners of the first aspect, the overturning device further comprises:

[0026] A second driver is arranged on an output shaft of the first driver, and is configured to drive the first driver to move towards or away from the first input gear or the second input gear.

[0027] In some possible implementation manners of the first aspect, the overturning device further includes:

[0028] A brake is arranged on each of the first conveying shaft and the second conveying shaft, and is configured to prevent rotation of the first conveying shaft and the second conveying shaft.

[0029] In some possible implementation manners of the first aspect, the overturning device further includes:

[0030] A guide wheel is arranged on each of the first conveying shaft and the second conveying shaft, and an inner side surface of the guide wheel is inclined from an inner ring to an outer ring of the guide wheel, and is configured to limit a position of the tray in an axial direction of the first conveying shaft.

[0031] In some possible implementation manners of the first aspect, the grabbing assembly includes:

[0032] A mounting plate is arranged on the mounting frame.

[0033] A third driver is arranged on the mounting plate.

[0034] An adapter plate is arranged between the mounting plate and the first conveying shaft or the second conveying shaft, and is connected to an output shaft of the third driver.

[0035] A suction cup is arranged on a side of the adapter plate away from the mounting plate, and the third driver is configured to drive the suction cup to grab the tray from a gap between two adjacent first conveying shafts or second conveying shafts through the adapter plate.

[0036] In some possible implementation manners of the first aspect, the grabbing assembly further includes:

[0037] A mounting frame is arranged on the side of the adapter plate away from the mounting plate, and the suction cup is arranged on the mounting frame.

[0038] In some possible implementation manners of the first aspect, the grabbing assembly further includes:

[0039] A guide rod is connected to the adapter plate at one end, and is arranged through the mounting plate at the other end.

[0040] In a second aspect, the embodiments of the present application provide a turnover device, which comprises the turnover device according to any one of the technical solutions above.

[0041] In a third aspect, the embodiments of the present application provide a tray, which is turned over by the turnover device or turnover device according to any one of the technical solutions above, and the tray comprises:

[0042] a tray body, which is provided with one or more accommodation cavities for placing products;

[0043] a pin column, which is arranged on the tray body along the edge of the accommodation cavity;

[0044] a first limiting component, which is arranged on the tray body along the edge of the accommodation cavity, and is provided with a slot for corresponding insertion of the pin column, and is used for limiting the product in the accommodation cavity;

[0045] wherein when the pin column on another tray body is inserted into the slot of the first limiting component on the tray body, the first limiting component can be kept away from the accommodation cavity.

[0046] In some possible implementation manners of the third aspect, the first limiting component is arranged between two adjacent accommodation cavities, and is used for limiting the two adjacent accommodation cavities.

[0047] In some possible implementation manners of the third aspect, the first limiting component comprises:

[0048] a bottom plate, which is sequentially provided with a first sliding slot, a second sliding slot and a first abutting portion, and the slot openings of the first sliding slot and the second sliding slot face the accommodation cavity;

[0049] a cover plate, which is provided with the slot, and covers the bottom plate;

[0050] a sliding component, which is arranged in the first sliding slot and the second sliding slot, and faces the slot;

[0051] an elastic member, one end of which abuts against the first abutting portion, and the other end of which abuts against the sliding component;

[0052] wherein when the corresponding pin column is inserted into the slot, the pin column extrudes the sliding component to retract into the first sliding slot and the second sliding slot respectively, and compresses the elastic member.

[0053] In some possible implementation manners of the third aspect, the sliding component comprises:

[0054] A sliding plate is provided with a first guide hole, a second guide hole, and a second abutment portion. The first guide hole and the second guide hole are spaced apart and the distance between them gradually increases. The second abutment portion is directly opposite the slot. The end of the elastic member away from the first abutment portion abuts against the end of the sliding plate. The cover plate is also provided with a third sliding groove. The slot communicates with the third sliding groove, and the sliding plate slides in the third sliding groove.

[0055] The first limiting member is slidably disposed in the first sliding groove and the first guide hole;

[0056] The second limiting member is slidably disposed in the second sliding groove and the second guide hole;

[0057] When the corresponding pin is inserted into the slot, the pin pushes against the second abutment part, causing the sliding plate to slide in the third sliding groove and compressing the elastic member, so as to bring the first limiting member back to the first sliding groove through the hole wall of the first guide hole, and bring the second limiting member back to the second sliding groove through the hole wall of the second guide hole.

[0058] In some possible implementations of the third aspect, the sliding plate is provided with a first through groove, and the second abutting part is the groove wall of the first through groove near the elastic member; the base plate is provided with a second through groove, and the second through groove is directly opposite the slot.

[0059] In some possible implementations of the third aspect, a vent is provided at the bottom of the receiving cavity.

[0060] In some possible implementations of the third aspect, the pallet body is provided with a positioning post and a positioning hole, and the positioning post of another pallet body can be inserted into the positioning hole of the pallet body accordingly.

[0061] The first conveying shaft and the second conveying shaft of the overturning device, the equipment and the tray provided by the embodiments of the present application are rotatably arranged on the mounting frame and are spaced apart along the first direction respectively, so that the tray can be conveyed when the first conveying shaft and the second conveying shaft rotate; the grabbing components are arranged on the mounting frame, part of the grabbing components can grab the tray through the gap between the two adjacent first conveying shafts, and the other part of the grabbing components can grab the tray through the gap between the two adjacent second conveying shafts, so that the tray can be separated from the first conveying shaft and the second conveying shaft respectively; the mounting frame is rotatably arranged on the mounting seat, so that the mounting frame drives the first conveying shaft, the second conveying shaft and the grabbing components to rotate together; when overturning the product, if the second conveying shaft is above the first conveying shaft, the grabbing components above the second conveying shaft grab the empty tray, the first conveying shaft conveys the tray with the product, so as to convey the tray with the product to the position directly below the empty tray, then the grabbing components below the first conveying shaft take away the tray with the product from the first conveying shaft, the mounting frame is overturned by 180°, so that the product falls from the tray close to the first conveying shaft into the tray close to the second conveying shaft, the overturning of the product is realized, and then the grabbing components place the tray with the overturned product on the second conveying shaft for conveying; therefore, the overturning process of the product does not need to take the product out of the tray, then put it into the tray after overturning, the overturning efficiency of the product is improved, that is, the efficiency of double-sided film coating of the silicon wafer is improved. BRIEF DESCRIPTION OF DRAWINGS

[0062] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor based on the drawings shown.

[0063] Figure 1 State diagram of an embodiment of the tray overturned by the overturning device of the present application;

[0064] Figure 2 Part of the structure in Figure 1 ; Figure 1 ;

[0065] Figure 3 Part of the structure in Figure 1 ; Figure 2 ;

[0066] Figure 4 Structure diagram of the tray in Figure 1 ;

[0067] Figure 5 Structure diagram of part in Figure 4 ;

[0068] Figure 6 For Figure 4 The first limit component is exploded view.

[0069] BRIEF DESCRIPTION OF DRAWINGS

[0070] 1, mounting seat; 2, mounting frame; 3, first conveying shaft; 4, second conveying shaft; 5, grabbing component; 51, mounting plate; 52, third driver; 53, adapter plate; 54, suction cup; 55, mounting frame; 56, guide rod; 6, first gear; 7, second gear; 8, first pulley; 9, second pulley; 10, synchronous belt; 20, first input gear; 30, second input gear; 40, output gear; 50, first driver; 60, second driver; 70, brake; 80, guide wheel; 90, roller; 200, tray; 210, tray body; 211, containing cavity; 212, air hole; 220, pin column; 230, first limit component; 231, bottom plate; 2311, first sliding groove; 2312, second sliding groove; 2313, placing groove; 2314, second through groove; 232, cover plate; 2321, slot; 233, sliding component; 2331, sliding plate; 23311, first guide hole; 23312, second guide hole; 23313, first through groove; 2332, first limit piece; 2333, second limit piece; 234, elastic piece; 240, positioning column; 250, positioning hole.

[0071] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0073] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0074] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0075] It should be understood that the term "and / or" as used in this application specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0077] This application provides a flipping device, equipment, and tray to solve the technical problem of low coating efficiency of silicon wafers.

[0078] In the embodiments of this application, such as Figure 1 As shown, the flipping device is used to flip the tray 200. The flipping device includes a mounting base 1, a mounting frame 2, a plurality of first conveying shafts 3, a plurality of second conveying shafts 4, and two or more sets of gripping components 5. The mounting frame 2 is rotatably mounted on the mounting base 1. The first conveying shafts 3 and the second conveying shafts 4 are both rotatably mounted on the mounting frame 2 and are spaced apart along a first direction. The plane where the second conveying shafts 4 are located is spaced apart from and parallel to the plane where the first conveying shafts 3 are located. The gripping components 5 are mounted on the mounting frame 2. Some of the gripping components 5 are used to grip the tray 200 through the gap between two adjacent first conveying shafts 3, and other gripping components 5 are used to grip the tray 200 through the gap between two adjacent second conveying shafts 4. The first direction is perpendicular to the axis of the first conveying shafts 3.

[0079] It can be understood that the first conveying shaft 3 and the second conveying shaft 4 can have the same structure, and the embodiments are distinguished in naming for the convenience of description. The first conveying shaft 3 and the second conveying shaft 4 are both used for conveying the tray 200. When the first conveying shaft 3 or the second conveying shaft 4 rotates, the tray 200 placed on the first conveying shaft 3 or the second conveying shaft 4 is conveyed by the first conveying shaft 3 or the second conveying shaft 4 in a direction parallel to the first direction under the action of friction, so as to convey the tray 200 to a corresponding position.

[0080] The plane where the first conveying shaft 3 is located is spaced apart and parallel to the plane where the second conveying shaft 4 is located, so that there is enough gap between the first conveying shaft 3 and the second conveying shaft 4, thereby enabling the tray 200 to be conveyed between the first conveying shaft 3 and the second conveying shaft 4. The first conveying shaft 3 can be directly below the second conveying shaft 4, or the first conveying shaft 3 can be opposite the gap between two adjacent second conveying shafts 4, which is not limited in the embodiments.

[0081] The mounting frame 2 is provided with two or more groups of grabbing assemblies 5. Part of the grabbing assemblies 5 are arranged on the side of the first conveying shaft 3 away from the second conveying shaft 4, so as to grab the tray 200 through the gap between two adjacent first conveying shafts 3. Another part of the grabbing assemblies 5 are arranged on the side of the second conveying shaft 4 away from the first conveying shaft 3, so as to grab the tray 200 through the gap between two adjacent second conveying shafts 4. In the embodiments, two grabbing assemblies 5 are arranged, one on the side of the first conveying shaft 3 away from the second conveying shaft 4, and the other on the side of the second conveying shaft 4 away from the first conveying shaft 3.

[0082] Since the first conveying shaft 3, the second conveying shaft 4 and the grabbing assembly 5 are all arranged on the mounting frame 2, when the mounting frame 2 rotates relative to the mounting seat 1, the mounting frame 2 will drive the first conveying shaft 3, the second conveying shaft 4 and the grabbing assembly 5 to rotate together. The rotation center line of the mounting frame 2 can be parallel to the axis of the first conveying shaft 3 or the second conveying shaft 4.

[0083] If the first conveying shaft 3 is located below the second conveying shaft 4, the process of overturning the tray 200 in the embodiments is as follows:

[0084] The grabbing assembly 5 above the second conveying shaft 4 grabs an empty tray 200, which is at a certain distance from the second conveying shaft 4. The first conveying shaft 3 rotates to convey the tray 200 placed on the first conveying shaft 3 to be directly below the empty tray 200, and then the grabbing assembly 5 below the first conveying shaft 3 grabs the tray 200 on the first conveying shaft 3 and carries the tray 200 on the first conveying shaft 3 to be above the first conveying shaft 3, so that the tray 200 is at a certain distance from the first conveying shaft 3, at which time the first conveying shaft 3 is separated from the tray 200 and there is no friction between them, that is, the rotation of the first conveying shaft 3 does not affect the movement state of the tray 200 above the first conveying shaft 3; wherein the tray 200 on the first conveying shaft 3 has a product placed inside, which can be a silicon wafer. Then drive the mounting frame 2 to rotate 180°, which will drive the first conveying shaft 3, the second conveying shaft 4 and the grabbing assembly 5 to rotate 180°, so as to turn the first conveying shaft 3 to be directly above the second conveying shaft 4, thereby turning the empty tray 200 to be directly below the tray 200 with the product, and the product will fall from the tray 200 close to the first conveying shaft 3 to the tray 200 close to the second conveying shaft 4 under the action of its own gravity, thereby realizing the turning of the product. Then the grabbing assembly 5 of the second conveying shaft 4 away from the first conveying shaft 3 carries the tray 200 with the turned product to descend to the second conveying shaft 4, so as to contact the second conveying shaft 4 and rotate the second conveying shaft 4, that is, the turned tray 200 can be conveyed to the next preset position by friction. When turning the product, it is not necessary to take the product out of the tray 200, turn it and then put it into the tray 200, which improves the efficiency of turning the product and thus improves the efficiency of double-sided film coating of the product.

[0085] The two ends of the first conveying shaft 3 are respectively rotatably arranged on a mounting frame 2, and the two ends of the second conveying shaft 4 are respectively rotatably arranged on a mounting frame 2, and the first conveying shaft 3 and the second conveying shaft 4 are arranged on the same mounting frame 2 at the same end, so as to improve the stability of the turning device in turning the tray 200.

[0086] In this embodiment, the first conveying shaft 3 and the second conveying shaft 4 are rotatably mounted on the mounting frame 2 and spaced apart along a first direction, so that the pallet 200 can be conveyed when the first conveying shaft 3 and the second conveying shaft 4 rotate. The gripping assembly 5 is mounted on the mounting frame 2; some gripping assemblies 5 can grip the pallet 200 through the gap between two adjacent first conveying shafts 3, and other gripping assemblies 5 can grip the pallet 200 through the gap between two adjacent second conveying shafts 4, so that the pallet 200 can be separated from the first conveying shaft 3 and the second conveying shaft 4 respectively. The mounting frame 2 is rotatably mounted on the mounting base 1, so that the mounting frame 2 drives the first conveying shaft 3, the second conveying shaft 4, and the gripping assembly 5 to rotate together. When flipping the product, if the second conveying shaft 4 is above the first conveying shaft 3, then the second... The gripping component 5 above the conveyor shaft 4 grips the empty pallet 200. The first conveyor shaft 3 conveys the pallet 200 containing the product to a position directly below the empty pallet 200. Then, the gripping component 5 below the first conveyor shaft 3 carries the pallet 200 containing the product away from the first conveyor shaft. The mounting bracket 2 is then rotated 180°, causing the product to fall from the pallet 200 near the first conveyor shaft 3 into the pallet 200 near the second conveyor shaft 4, thus achieving product rotation. The gripping component 5 then places the pallet 200 containing the rotated product onto the second conveyor shaft 4 for further transport. Therefore, the product rotation process does not require removing the product from the pallet 200, rotating it, and then placing it back into the pallet 200, improving product rotation efficiency and thus improving the efficiency of double-sided silicon wafer coating.

[0087] In one embodiment, the flipping device further includes a second limiting component for positioning the tray 200 containing the product directly below the empty tray 200. Optionally, the second limiting component may be a stop bar.

[0088] In one embodiment, such as Figure 1 As shown, the first conveyor shaft 3 is synchronously connected to the first conveyor shaft 3, the second conveyor shaft 4 is synchronously connected to the second conveyor shaft 4, and the first conveyor shaft 3 is synchronously connected to the second conveyor shaft 4, so as to reduce the number of driving components, simplify the structure of the flipping device, and reduce the manufacturing cost of the flipping device.

[0089] In one embodiment, such as Figure 1 As shown, the flipping device further includes a first gear 6, a second gear 7, a first pulley 8, a second pulley 9, and a synchronous belt 10. The first gear 6 is disposed on the first conveying shaft 3, the second gear 7 is disposed on the second conveying shaft 4, and the second gear 7 meshes with the first gear 6. The first pulley 8 is disposed on the first conveying shaft 3, the second pulley 9 is disposed on the second conveying shaft 4, and the synchronous belt 10 is drivenly connected to the first pulley 8 and / or the second pulley 9.

[0090] The first gear 6 is arranged on the first conveying shaft 3, and the second gear 7 is arranged on the second conveying shaft 4. The first gear 6 is engaged with the second gear 7, so that the first conveying shaft 3 can rotate synchronously with the second conveying shaft 4. The first pulley 8 is arranged on the first conveying shaft 3, and the second pulley 9 is arranged on the second conveying shaft 4. The synchronous belt 10 can be drivingly connected to two different first pulleys 8, so that the first conveying shafts 3 can rotate synchronously. The first conveying shaft 3 and the second conveying shaft 4 can rotate synchronously through the engagement of the first gear 6 and the second gear 7, so that the first conveying shafts 3 and the second conveying shafts 4 can rotate synchronously. Of course, the synchronous belt 10 can also be drivingly connected to two different second pulleys 9, or drivingly connected to the first pulley 8 and the second pulley 9, which can also achieve the synchronous rotation of all the first conveying shafts 3 and all the second conveying shafts 4. The present embodiment is not limited in this regard.

[0091] The first gear 6 and the first pulley 8 can be arranged on the two sides of the mounting frame 2, respectively. The second gear 7 and the second pulley 9 can be arranged on the two sides of the mounting frame 2, respectively, so that the structure distribution is more reasonable, and the stability of the conveying tray 200 is improved. The space between the two mounting frames 2 is defined as the inner side of the mounting frame 2, and the space away from the other mounting frame 2 is defined as the outer side of the mounting frame 2. One first gear 6 and one second gear 7 can be arranged on the inner side of each mounting frame 2, respectively. The conveying tray 200 can be arranged between the two first gears 6 or the two second gears 7.

[0092] In an embodiment, as shown in Figure 1 The turning device further comprises a first input gear 20, a second input gear 30, an output gear 40, and a first driver 50. The first input gear 20 is arranged on the first conveying shaft 3, and the second input gear 30 is arranged on the second conveying shaft 4. The second input gear 30 is centrally symmetric with the first input gear 20 about the rotation center line of the mounting frame 2. The output gear 40 is used to engage with the first input gear 20 or the second input gear 30. The output gear 40 is arranged on the output shaft of the first driver 50, and the first driver 50 is used to drive the output gear 40 to rotate. The first driver 50 is arranged on the mounting seat 1. The first input gear 20 and the second input gear 30 can be arranged on the outer side of the mounting frame 2.

[0093] The first driver 50 is arranged on the mounting base 1, and the output gear 40 is arranged on the output shaft of the first driver 50, so that the position of the output gear 40 relative to the mounting base 1 is invariable. The second input gear 30 is centrally symmetrical to the first input gear 20 about the rotation center line of the mounting frame 2, so that after the mounting frame 2 drives the first input gear 20 to rotate by 180° through the first conveying shaft 3, the second input gear 30 is just turned to the original position of the first input gear 20, and the first input gear 20 is turned to the original position of the second input gear 30, so as to realize the position exchange and engage with the output gear 40. After the second input gear 30 engages with the output gear 40, the first driver 50 drives the output gear 40 to rotate, the output gear 40 drives the second input gear 30 to rotate, and the second input gear 30 drives the first conveying shaft 3 to rotate, so as to realize the synchronous rotation of the first conveying shaft 3 and the second conveying shaft 4, and achieve the conveying of the tray 200. After the mounting frame 2 is rotated by 180° again, the first input gear 20 is turned to the original position of the second input gear 30, so as to engage with the output gear 40.

[0094] In an embodiment, as shown in Figure 1 The turning device further comprises a second driver 60, the first driver 50 is arranged on the output shaft of the second driver 60, and the second driver 60 is used to drive the first driver 50 to move close to or away from the first input gear 20 or the second input gear 30. The second driver 60 is arranged on the mounting base 1. If the first input gear 20 engages with the output gear 40, the second driver 60 is controlled to drive the first driver 50 to move away from the first input gear 20, so as to drive the output gear 40 to move away from the first input gear 20, and then the mounting frame 2 is turned by 180°, so as to avoid the interference between the output gear 40 and the first input gear 20 when the output gear 40 engages with the first input gear 20. After the second input gear 30 is turned to the original position of the first input gear 20 through the turning of the mounting frame 2, the second driver 60 is controlled to drive the first driver 50 to move close to the second input gear 30, so as to drive the first driver 50 to move close to the second input gear 30, and then the output gear 40 engages with the second input gear 30, so that the first driver 50 drives the second input gear 30 to rotate through the output gear 40, and then the second input gear 30 drives the second conveying shaft 4 and the first conveying shaft 3 to rotate, so as to achieve the conveying of the tray 200.

[0095] In the embodiment, the first driver 50 can be slidably arranged on the mounting base 1, so that the second driver 60 drives the first driver 50 to slide on the mounting base 1, and the stability of the movement of the first driver 50 is improved.

[0096] In an embodiment, as shown in Figure 1As shown, the turnover device further comprises a brake 70, which is arranged on the first conveying shaft 3 and the second conveying shaft 4, and is used to stop the rotation of the first conveying shaft 3 and the second conveying shaft 4. If a product is placed in the tray 200 placed on the first conveying shaft 3, when the tray 200 with the product is conveyed by the first conveying shaft 3 to the position directly below the empty tray 200, the grabbing assembly 5 below the first conveying shaft 3 grabs the tray 200 and takes the tray 200 with the product away from the first conveying shaft 3, and then the first driver 50 is controlled to stop rotating, and the brake 70 is controlled to brake, so as to clamp the first conveying shaft 3 and the second conveying shaft 4 respectively and stop the rotation of the first conveying shaft 3 and the second conveying shaft 4, so that the posture of the first input gear 20 and the second input gear 30 remains unchanged, so that after the positions of the first input gear 20 and the second input gear 30 are exchanged, the first input gear 20 and the second input gear 30 can be directly engaged with the output gear 40, and the situation that the posture of the first input gear 20 and the second input gear 30 does not match and the first input gear 20 and the second input gear 30 cannot be engaged with the output gear 40 after the turnover occurs. The brake 70 can be arranged on the outer side of the mounting frame 2.

[0097] It can be understood that when the first driver 50 is started to drive the output gear 40 to rotate, all the brakes 70 are in a non-braking state, so that the first conveying shaft 3 and the second conveying shaft 4 can normally rotate. When the first driver 50 stops rotating and it is necessary to keep the postures of the first input gear 20 and the second input gear 30 the same, all the brakes 70 can be controlled to brake correspondingly, so as to stop the rotation of the first conveying shaft 3 and the second conveying shaft 4. In addition, the brake 70 can also be arranged on the output shaft of the first driver 50, so as to stop the change of the posture of the output gear 40 and avoid the situation that the output gear 40 cannot be engaged with the first input gear 20 or the second input gear 30.

[0098] In an embodiment, as Figure 1As shown, the overturning device further comprises a guide wheel 80, the first conveying shaft 3 and the second conveying shaft 4 are both provided with the guide wheel 80, the inner side surface of the guide wheel 80 is inclined from the inner ring to the outer ring of the guide wheel 80 and faces the outer side surface of the guide wheel 80, and the inner side surface of the guide wheel 80 is used to limit the position of the tray 200 in the axial direction of the first conveying shaft 3. Because the inner side surface of the guide wheel 80 is inclined from the inner ring to the outer ring of the guide wheel 80 and faces the outer side surface of the guide wheel 80, when the tray 200 shakes towards the inner side surface of the guide wheel 80, the tray 200 will slide down the inner side surface of the guide wheel 80 under the action of its own gravity, so as to limit the tray 200 at a preset position in the axial direction of the first conveying shaft 3 or the second conveying shaft 4, so that the tray 200 with products can face the empty tray 200, and the overturning of the products can be conveniently realized. The inner side surface of the guide wheel 80 can be a concave arc surface.

[0099] In the embodiment, two guide wheels 80 can be respectively arranged on the first conveying shaft 3 and the second conveying shaft 4, and the inner side surfaces of the two guide wheels 80 are oppositely arranged to limit the tray 200 between the two guide wheels 80 through the inner side surfaces of the guide wheels 80. The inner side surface of the guide wheel 80 is the side surface of the guide wheel 80 used to limit the tray 200, the inner ring of the guide wheel 80 is the side of the guide wheel 80 in contact with the first conveying shaft 3 or the second conveying shaft 4, and the outer ring of the guide wheel 80 is the side of the guide wheel 80 away from the inner ring. The first gear 6 can be arranged between the guide wheel 80 and the mounting frame 2, and the second gear 7 can also be arranged between the guide wheel 80 and the mounting frame 2.

[0100] In an embodiment, as shown in the figure, Figure 1 The overturning device further comprises a roller 90, the first conveying shaft 3 and the second conveying shaft 4 are both provided with the roller 90, and the roller 90 is used to convey the tray 200. The rotation of the first conveying shaft 3 or the second conveying shaft 4 can drive the roller 90 to rotate, and the roller 90 can convey the tray 200 placed on the roller 90 in the conveying direction through friction. The roughness of the surface of the roller 90 can be increased to increase the friction between the roller 90 and the tray 200, so as to facilitate the conveying of the tray 200. Moreover, the material of the roller 90 can be different from that of the first conveying shaft 3 or the second conveying shaft 4, so as to reduce the manufacturing cost. The roller 90 can be arranged between the guide wheels 80.

[0101] In an embodiment, as shown in the figure, Figure 1As shown, the grabbing assembly 5 comprises a mounting plate 51, a third driver 52, an adapter plate 53 and a suction cup 54, the mounting plate 51 is arranged on the mounting frame 2; the third driver 52 is arranged on the mounting plate 51; the adapter plate 53 is arranged between the mounting plate 51 and the first conveying shaft 3 or the second conveying shaft 4, and is connected with the output shaft of the third driver 52; the suction cup 54 is arranged on the side of the adapter plate 53 away from the mounting plate 51, and the third driver 52 is used to drive the suction cup 54 to grab the tray 200 from the gap between two adjacent first conveying shafts 3 or second conveying shafts 4 through the adapter plate 53.

[0102] The mounting plate 51 is arranged on the mounting frame 2, the third driver 52 is arranged on the mounting plate 51, the adapter plate 53 is arranged on the output shaft of the third driver 52, and the suction cup 54 is arranged on the adapter plate 53, so that the grabbing assembly 5 can rotate with the mounting frame 2. The adapter plate 53 is arranged on the output shaft of the third driver 52, and the suction cup 54 is arranged on the adapter plate 53, so that the third driver 52 can drive the suction cup 54 to approach or move away from the mounting plate 51 through the adapter plate 53, so as to achieve the purpose of taking the tray 200 away from the first conveying shaft 3 or the second conveying shaft 4 and placing the tray 200 on the first conveying shaft 3 or the second conveying shaft 4. The suction cup 54 is used to generate negative pressure to achieve the purpose of grabbing the tray 200.

[0103] In an embodiment, the grabbing assembly 5 further comprises a lead screw, the lead screw is connected with the output shaft of the third driver 52 and the adapter plate 53 respectively, and the third driver 52 can drive the adapter plate 53 to grab the tray 200 through the lead screw.

[0104] In an embodiment, as shown in the drawings, Figure 1 The grabbing assembly 5 further comprises a mounting frame 55, the mounting frame 55 is arranged on the side of the adapter plate 53 away from the mounting plate 51, and the suction cup 54 is arranged on the mounting frame 55. The size of the mounting frame 55 can be set according to the size of the tray 200, so that multiple suction cups 54 can be arranged on the frame, so that the tray 200 can be grabbed more stably.

[0105] In an embodiment, as shown in the drawings, Figure 1 The grabbing assembly 5 further comprises a guide rod 56, one end of the guide rod 56 is connected with the adapter plate 53, and the other end of the guide rod 56 penetrates the mounting plate 51, the guide rod 56 can slide relative to the mounting plate 51, so as to limit the movement direction of the adapter plate 53 through the guide rod 56, avoid the adapter plate 53 from tilting when moving, and improve the stability of the suction cup 54 in grabbing the tray 200.

[0106] In addition, the embodiment of the present application also provides a turnover device, which comprises the turnover device of any one of the above-mentioned embodiments.

[0107] The turnover device provided by the embodiments of the present application comprises a turnover device, and the specific structure of the turnover device is referred to the above embodiments. Since the turnover device adopts all the technical solutions of the above embodiments, it has all the beneficial effects brought by the technical solutions of the above embodiments.

[0108] Optionally, the turnover device can further comprise a vacuumizing device and a box.

[0109] In addition, the embodiments of the present application further provide a tray 200, which is turned over by the turnover device or turnover device as described in any of the above embodiments. The tray 200 comprises a tray body 210, a pin column 220 and a first limiting assembly 230. The tray body 210 is provided with one or more accommodation cavities 211 for placing products. The pin column 220 and the first limiting assembly 230 are arranged on the tray body 210 along the edge of the accommodation cavity 211. The first limiting assembly 230 is provided with a slot 2321 corresponding to the insertion of the pin column 220, and the first limiting assembly 230 is used to limit the product in the accommodation cavity 211. When the pin column 220 on another tray body 210 is inserted into the slot 2321 of the first limiting assembly 230 on the tray body 210, the first limiting assembly 230 can be avoided from the accommodation cavity 211.

[0110] The product placed in the accommodation cavity 211 can be a silicon wafer. One silicon wafer is placed in each accommodation cavity 211, and multiple accommodation cavities 211 can be arranged on one tray body 210 to improve the film coating efficiency of the silicon wafer. The edge of each accommodation cavity 211 is correspondingly provided with a first limiting assembly 230 and a pin column 220, so as to limit the product in the accommodation cavity 211 by the first limiting assembly 230, and the pin column 220 is correspondingly arranged with the first limiting assembly 230.

[0111] When the tray 200 is flipped by the flipping device or the flipping apparatus, if the first conveying shaft 3 is below the second conveying shaft 4, the grabbing assembly 5 above the second conveying shaft 4 grabs an empty tray 200, and the empty tray 200 is separated from the second conveying shaft 4 so that the second conveying shaft 4 does not interfere with the empty tray 200; and the tray 200 with products is placed on the first conveying shaft 3 so that the tray 200 with products is conveyed to be directly below the empty tray 200 by the rotating first conveying shaft 3; then the grabbing assembly 5 below the first conveying shaft 3 grabs the tray 200 with products so that the tray 200 with products is taken away from the first conveying shaft 3, and the first conveying shaft 3 cannot interfere with the tray 200 with products; then the mounting frame 2 is flipped by 180°, and during the flipping process, the products are limited in the accommodation cavity 211 by the first limiting assembly 230, so that the products do not fall from the accommodation cavity 211; then the grabbing assembly 5 grabbing the tray 200 with products drives the tray 200 with products to be close to the empty tray 200, so that the pin 220 is correspondingly inserted into the insertion slot 2321 of the first limiting assembly 230, and the first limiting assembly 230 is away from the accommodation cavity 211, so that the products fall into the empty tray 200, and the flipping of the products is realized; at this time, the grabbing assembly 5 above the first conveying shaft 3 drives the empty tray 200 to be away from the second conveying shaft 4, so that the pin 220 exits the insertion slot 2321 on the first limiting assembly 230, and the first limiting assembly 230 on the tray body 210 above the second conveying shaft 4 limits the products in the accommodation cavity 211; then the grabbing assembly 5 below the second conveying shaft 4 places the tray 200 with flipped products on the second conveying shaft 4, so that the tray 200 is conveyed by the rotating second conveying shaft 4.

[0112] The tray body 210 is provided with the accommodation cavity 211, and the first limiting assembly 230 and the pin 220 are arranged at the edge of the accommodation cavity 211. When the tray 200 is flipped by the flipping device or the flipping apparatus, the pin 220 is correspondingly inserted into the insertion slot 2321 of the first limiting assembly 230, so that the first limiting assembly 230 is away from the accommodation cavity 211, and the products in the accommodation cavity 211 fall into the empty tray 200 below, and the flipping is realized; when the pin 220 exits the insertion slot 2321 of the first limiting assembly 230, the first limiting assembly 230 limits the products in the accommodation cavity 211, so that the products are continuously conveyed by the first conveying shaft 3 or the second conveying shaft 4. Since the products do not need to be taken out from the tray 200 for flipping and then placed into the tray 200, the efficiency of flipping the products can be improved, that is, the efficiency of double-sided film coating of the silicon wafer can be improved.

[0113] In an embodiment, as shown in Figure 1As shown, the first limiting assembly 230 is arranged between two adjacent accommodating cavities 211, and is used for limiting the two adjacent accommodating cavities 211, so that the two adjacent accommodating cavities 211 can share the first limiting assembly 230, thereby reducing the number of the first limiting assembly 230, and reducing the weight and manufacturing cost of the tray 200. Since the pin column 220 is arranged correspondingly to the first limiting assembly 230, the two adjacent accommodating cavities 211 can also share the pin column 220.

[0114] In an embodiment, as shown in Figure 1 The first limiting assembly 230 includes a bottom plate 231, a cover plate 232, a sliding assembly 233, and an elastic member 234. The bottom plate 231 is sequentially provided with a first sliding groove 2311, a second sliding groove 2312, and a first abutting portion. The first sliding groove 2311 and the second sliding groove 2312 are arranged towards the accommodating cavities 211. The cover plate 232 is provided with the insertion slot 2321, and is arranged on the bottom plate 231. The sliding assembly 233 is arranged in the first sliding groove 2311 and the second sliding groove 2312, and is opposite to the insertion slot 2321. One end of the elastic member 234 is in abutment with the first abutting portion, and the other end is in abutment with the sliding assembly 233. When the corresponding pin column 220 is inserted into the insertion slot 2321, the pin column 220 extrudes the sliding assembly 233 to retract into the first sliding groove 2311 and the second sliding groove 2312, and compresses the elastic member 234.

[0115] When the corresponding pin column 220 is inserted into the insertion slot 2321, the pin column 220 extrudes the sliding assembly 233 to retract into the first sliding groove 2311 and the second sliding groove 2312, so that the sliding assembly 233 avoids the accommodating cavities 211, and the product can freely fall under the action of its own gravity. At the same time, when the sliding assembly 233 retracts to avoid the accommodating cavities 211, the elastic member 234 is compressed, so that when the pin column 220 exits the insertion slot 2321, the elastic member 234 drives the sliding assembly 233 to reset, so that the sliding assembly 233 slides towards the two adjacent accommodating cavities 211, so as to limit the product in the accommodating cavities 211, and avoid the product from jumping out of the accommodating cavities 211. The cover plate 232 is used for limiting the sliding assembly 233 in the first sliding groove 2311 and the second sliding groove 2312, and the elastic member 234 can be a spring.

[0116] In an embodiment, as shown in Figure 1As shown, the sliding assembly 233 comprises a sliding plate 2331, a first limiting piece 2332 and a second limiting piece 2333, the sliding plate 2331 is provided with a first guide hole 23311, a second guide hole 23312 and a second abutting portion, the first guide hole 23311 and the second guide hole 23312 are arranged at intervals, and the interval gradually increases; the second abutting portion is opposite to the insertion slot 2321, one end of the elastic piece 234 away from the first abutting portion abuts against the end of the sliding plate 2331; the cover plate 232 is further provided with a third sliding groove, the insertion slot 2321 and the third sliding groove are communicated, and the sliding plate 2331 slides in the third sliding groove; the first limiting piece 2332 slides in the first sliding groove 2311 and the first guide hole 23311, and the second limiting piece 2333 slides in the second sliding groove 2312 and the second guide hole 23312; wherein, when the corresponding pin column 220 is inserted into the insertion slot 2321, the pin column 220 drives the sliding plate 2331 to slide in the third sliding groove by abutting against the second abutting portion, and compresses the elastic piece 234, so as to drive the first limiting piece 2332 back to the first sliding groove 2311 through the hole wall of the first guide hole 23311, and drive the second limiting piece 2333 back to the second sliding groove 2312 through the hole wall of the second guide hole 23312.

[0117] The sliding plate 2331 is slidingly arranged in the third sliding groove, so that the sliding plate 2331 can slide in the third sliding groove. The slot 2321 is in communication with the third sliding groove, and the second abutting portion is opposite to the slot 2321, so that when the pin column 220 is inserted into the slot 2321, the pin column 220 can press the second abutting portion to drive the sliding plate 2331 to slide in the third sliding groove through the second abutting portion. The first guide hole 23311 and the second guide hole 23312 are arranged at intervals and gradually increase in the interval perpendicular to the sliding direction of the sliding plate 2331, that is, the first guide hole 23311 and the second guide hole 23312 are arranged in the shape of an "eight". The first limiting piece 2332 is slidingly arranged in the first sliding groove 2311 and the first guide hole 23311, and the second limiting piece 2333 is slidingly arranged in the second sliding groove 2312 and the second guide hole 23312, so that when the sliding plate 2331 slides, the first limiting piece 2332 can be driven to slide in the first sliding groove 2311, and the second limiting piece 2333 can be driven to slide in the second sliding groove 2312. At the same time, since the interval of the first guide hole 23311 and the second guide hole 23312 gradually increases, the first limiting piece 2332 can be pushed by the hole wall of the first guide hole 23311, and the second limiting piece 2333 can be pushed by the hole wall of the second guide hole 23312, so that when the sliding plate 2331 slides, the first limiting piece 2332 and the second limiting piece 2333 can be driven to slide in the first sliding groove 2311 and the second sliding groove 2312, respectively.

[0118] When the corresponding pin column 220 is inserted into the slot 2321, the pin column 220 presses the second abutting portion to drive the sliding plate 2331 to slide in the third sliding groove through the second abutting portion, and then the first limiting piece 2332 is pushed by the hole wall of the first guide hole 23311 to retract into the first sliding groove 2311, and the second limiting piece 2333 is pushed by the hole wall of the second guide hole 23312 to retract into the second sliding groove 2312, so that the first limiting piece 2332 and the second limiting piece 2333 avoid the accommodation cavity 211, so that the product placed in the accommodation cavity 211 can freely fall under the action of its own gravity. At the same time, when the sliding plate 2331 slides, the elastic piece 234 is compressed, and when the pin column 220 exits the slot 2321, the elastic piece 234 drives the sliding plate 2331 to reset, so that the first limiting piece 2332 is pushed by the hole wall of the first guide hole 23311 to slide towards one of the accommodation cavities 211, and the second limiting piece 2333 is pushed by the hole wall of the second guide hole 23312 to slide towards another of the accommodation cavities 211, so that the product is limited in the accommodation cavity 211 by the first limiting piece 2332 and the second limiting piece 2333.

[0119] Specifically, the first limiting member 2332 comprises a first latch portion and a first sliding portion, the first latch portion is fixedly connected with the first sliding portion, the first latch portion is slidably arranged in the first guide hole 23311, and the first sliding portion is slidably arranged in the first sliding groove 2311, so as to push the first latch portion through the hole wall of the first guide hole 23311, and then drive the first sliding portion to slide in the first sliding groove 2311 through the first latch portion. The second limiting member 2333 comprises a second latch portion and a second sliding portion, the second latch portion is fixedly connected with the second sliding portion, the second latch portion is slidably arranged in the second guide hole 23312, and the second sliding portion is slidably arranged in the second sliding groove 2312, so as to push the second latch portion through the hole wall of the second guide hole 23312, and then drive the second sliding portion to slide in the second sliding groove 2312 through the second latch portion.

[0120] In an embodiment, as shown in Figure 1 The sliding plate 2331 is provided with a first through groove 23313, and the second abutting portion is a groove wall of the first through groove 23313 close to the elastic member 234. The bottom plate 231 is provided with a second through groove 2314, and the second through groove 2314 is opposite to the insertion slot 2321. Since the second through groove 2314 is opposite to the insertion slot 2321, during the process that the pin column 220 is inserted into the insertion slot 2321, the pin column 220 first passes through the insertion slot 2321, then passes through the first through groove 23313 and abuts against the second abutting portion to push the sliding plate 2331 to slide, and then extends into the second through groove 2314. The second through groove 2314 can provide sufficient space for the pin column 220 to abut against the second abutting portion, so as to reduce the thickness of the first limiting assembly 230.

[0121] Specifically, the free end of the pin column 220 can be a gradually converging inclined surface, so as to abut against the second abutting portion through the pin column 220 during the process that the pin column 220 is inserted into the insertion slot 2321, and drive the sliding plate 2331 to slide in the third sliding groove.

[0122] In an embodiment, as shown in Figure 1 The bottom plate 231 is further provided with a placement groove 2313, and the first abutting portion is a groove wall of the placement groove 2313 away from one end of the first sliding groove 2311. The placement groove 2313 is used for placing the elastic member 234, so as to reduce the thickness of the first limiting assembly 230. The second through groove 2314 can be arranged between the first sliding groove 2311, the second sliding groove 2312 and the placement groove 2313.

[0123] In an embodiment, as shown in Figure 1As shown, the bottom of the accommodating cavity 211 is provided with a vent hole 212 to avoid the air in the bottom of the accommodating cavity 211 being exhausted when the product is placed in the accommodating cavity 211, so that the product is adsorbed in the accommodating cavity 211 due to the atmospheric pressure, affecting the free falling of the product. Therefore, the vent hole 212 can make the pressure in the bottom of the accommodating cavity 211 the same as the external pressure, avoiding the adsorption force due to the negative pressure.

[0124] In an embodiment, as shown in ​ As shown, the tray body 210 is provided with a positioning column 240 and a positioning hole 250, and the positioning column 240 of another tray body 210 can be correspondingly inserted into the positioning hole 250 of the tray body 210. When the product is flipped by using the above-mentioned flipping device or flipping equipment, the positioning column 240 is correspondingly inserted into the positioning hole 250 when the tray 200 with the product is close to the empty tray 200, so as to position the two trays 200, so that the product is opposite to the accommodating cavity 211 of the empty tray 200, so that the product can fall into the accommodating cavity 211 of the empty tray 200, realizing the flipping of the product.

[0125] The above-mentioned is only the preferred embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields under the inventive concept of the present application, using the content of the present application and the drawings are included in the patent protection scope of the present application.

Claims

1. A flipping device, characterized in that, The flipping device is used to flip the tray, and the flipping device includes: Mounting base; Mounting bracket, which is rotatably mounted on the mounting base; A plurality of first conveying shafts are rotatably mounted on the mounting frame and spaced apart along a first direction; Multiple second conveyor shafts are rotatably mounted on the mounting frame and spaced apart along the first direction. The planes containing the second conveyor shafts are spaced apart from and parallel to the planes containing the first conveyor shafts. The first conveyor shafts are synchronously connected to each other, the second conveyor shafts are synchronously connected to each other, and the first conveyor shafts are synchronously connected to each other. Two or more sets of gripping components are provided on the mounting frame. Some of the gripping components are located on the side of the first conveyor shaft opposite to the second conveyor shaft, and are used to grip the tray through the gap between two adjacent first conveyor shafts. Other gripping components are located on the side of the second conveyor shaft opposite to the first conveyor shaft, and are used to grip the tray through the gap between two adjacent second conveyor shafts. A first input gear is disposed on the first conveying shaft; The second input gear is disposed on the second conveying shaft, and the second input gear is symmetrical to the first input gear about the rotation center line of the mounting frame; An output gear, which is used to mesh with either the first input gear or the second input gear; A first driver, wherein the output gear is disposed on the output shaft of the first driver, the first driver is used to drive the output gear to rotate, and the first driver is disposed on the mounting base; Wherein, the first direction is perpendicular to the axis of the first conveying shaft.

2. The flipping device as described in claim 1, characterized in that, The flipping device further includes: A first gear is disposed on the first conveying shaft; The second gear is disposed on the second conveying shaft and meshes with the first gear accordingly. A first pulley is disposed on the first conveying shaft; The second pulley is disposed on the second conveying shaft; A timing belt, which is connected to the first pulley and / or the second pulley.

3. The flipping device as described in claim 1, characterized in that, The flipping device further includes: The second driver is located on the output shaft of the first driver and is used to drive the first driver to move closer to or away from the first input gear or the second input gear. The second driver is located on the mounting base.

4. The flipping device as described in claim 1, characterized in that, The flipping device further includes: The brake is provided on both the first conveyor shaft and the second conveyor shaft, and the brake is used to prevent the first conveyor shaft and the second conveyor shaft from rotating.

5. The flipping device as described in claim 1, characterized in that, The flipping device further includes: Guide wheels are provided on both the first and second conveying shafts. The inner side of the guide wheel is inclined toward the outer side of the guide wheel from the inner ring to the outer ring. The inner side of the guide wheel is used to limit the axial position of the tray on the first conveying shaft.

6. The flipping device as described in claim 1, characterized in that, The crawling component includes: Mounting plate, the mounting plate being disposed on the mounting frame; A third driver, wherein the third driver is disposed on the mounting plate; An adapter plate is disposed between the mounting plate and the first conveyor shaft or the second conveyor shaft, and is connected to the output shaft of the third driver; A suction cup is disposed on the side of the adapter plate opposite to the mounting plate. The third driver is used to drive the suction cup through the adapter plate to grip the tray from the gap between two adjacent first conveyor shafts or second conveyor shafts.

7. The flipping device as described in claim 6, characterized in that, The crawling component also includes: The mounting frame is located on the side of the adapter plate opposite to the mounting plate, and the suction cup is located on the mounting frame.

8. The flipping device as described in claim 6, characterized in that, The crawling component also includes: A guide rod, one end of which is connected to the adapter plate and the other end of which passes through the mounting plate.

9. A flipping device, characterized in that, The flipping device includes the flipping device as described in any one of claims 1-8.

10. A tray, characterized in that, The pallet is flipped using the flipping device as described in any one of claims 1-8 or the flipping equipment as described in claim 9, and the pallet comprises: A tray body having one or more receiving cavities for placing products; A pin is provided on the tray body along the edge of the receiving cavity; A first limiting component is disposed on the tray body along the edge of the receiving cavity. The first limiting component is provided with a slot for the corresponding insertion of the pin. The first limiting component is used to limit the product within the receiving cavity. When a pin on another tray body is inserted into the slot of the first limiting component on the tray body, the first limiting component can avoid the receiving cavity. The first limiting component includes: A base plate, wherein a first sliding groove, a second sliding groove and a first abutting part are sequentially provided on the base plate, and the openings of the first sliding groove and the second sliding groove face the receiving cavity; A cover plate, wherein the slot is provided on the cover plate, and the cover plate is placed on the base plate; A sliding component, wherein the sliding component is disposed within the first sliding groove and the second sliding groove, and is directly opposite the slot; An elastic element, one end of which abuts against the first abutting portion, and the other end of which abuts against the sliding assembly; When the corresponding pin is inserted into the slot, the pin pushes the sliding assembly back into the first sliding groove and the second sliding groove respectively, and compresses the elastic element.

11. The tray as claimed in claim 10, characterized in that, The first limiting component is disposed between two adjacent receiving cavities for limiting the two adjacent receiving cavities.

12. The tray as claimed in claim 10, characterized in that, The sliding component includes: A sliding plate is provided with a first guide hole, a second guide hole, and a second abutment portion. The first guide hole and the second guide hole are spaced apart and the distance between them gradually increases. The second abutment portion is directly opposite the slot. The end of the elastic member away from the first abutment portion abuts against the end of the sliding plate. The cover plate is also provided with a third sliding groove. The slot communicates with the third sliding groove, and the sliding plate slides in the third sliding groove. The first limiting member is slidably disposed in the first sliding groove and the first guide hole; The second limiting member is slidably disposed in the second sliding groove and the second guide hole; When the corresponding pin is inserted into the slot, the pin pushes against the second abutment part, causing the sliding plate to slide in the third sliding groove and compressing the elastic member, so as to bring the first limiting member back to the first sliding groove through the hole wall of the first guide hole, and bring the second limiting member back to the second sliding groove through the hole wall of the second guide hole.

13. The tray as claimed in claim 12, characterized in that, The sliding plate is provided with a first through groove, and the second abutting part is the groove wall of the first through groove near the elastic member; the bottom plate is provided with a second through groove, and the second through groove is directly opposite the slot.

14. The tray as claimed in claim 10, characterized in that, The bottom of the receiving cavity is provided with a vent.

15. The tray as claimed in claim 10, characterized in that, The pallet body is provided with a positioning post and a positioning hole, and the positioning post of another pallet body can be inserted into the positioning hole of the pallet body accordingly.

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