Flower basket and mechanism for loading and unloading silicon wafers

Abstract

The utility model discloses a flower basket and a mechanism for loading and unloading silicon wafers. The flower basket comprises two fixing plates and a supporting rod, wherein the two fixing plates are oppositely arranged; the number of the supporting rods is multiple, the multiple supporting rods are connected between the two fixing plates, each supporting rod comprises multiple supporting rod sections, each supporting rod section is provided with protruding teeth, a containing groove used for containing a silicon wafer is formed between every two adjacent protruding teeth, every two adjacent supporting rod sections are movably connected in the axial direction of the corresponding supporting rod, and the supporting rods are arranged in the containing groove. Therefore, the distance between every two adjacent convex teeth is adjustable. The basket not only can effectively reduce the step of transferring the silicon wafers in the basket into a graphite boat, shorten the production cycle of the solar cells, reduce the cost, but also can reduce the probability that the silicon wafers are collided, abraded, polluted and the like in the conveying process, and improve the performance of the produced solar cells.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell production equipment, and in particular to a flower basket and a mechanism for loading and unloading silicon wafers. Background Art

[0002] In the process of manufacturing silicon wafers into solar cells, it is necessary to go through the processes of silicon wafer cutting and preparation, removal of damaged layers, surface texturing and pickling, diffusion bonding, alkali polishing, annealing, back film, positive film, screen printing, sintering, testing, etc. After each process is completed, the silicon wafer is usually placed in a basket and transferred to the next process through the basket. For example, after the back film process is completed, the silicon wafer can be placed in the basket through the transport, and then the basket and the silicon wafer in the basket are transferred to the positive film process.

[0003] When the silicon wafers with the back film are transferred to the positive film process, the silicon wafers in the flower basket need to be taken out and inserted into the graphite boat by the transporting member, and then the positive film process is performed on the silicon wafers in the graphite boat. However, the flower basket usually carries multiple silicon wafers, and the distance between two adjacent silicon wafers is small. The graphite boat usually includes multiple boat sheets, and a silicon wafer is inserted between each two adjacent boat sheets, and the distance between two adjacent boat sheets is large. When the silicon wafers in the flower basket are transferred to the graphite boat by the transporting member, it is usually necessary to first transfer the silicon wafers in the flower basket to the variable pitch flower basket one by one by a belt. The distance between two adjacent silicon wafers in the multiple silicon wafers in the variable pitch flower basket is the same as the distance between two adjacent boat sheets in the graphite boat. Then, the silicon wafers in the variable pitch flower basket are taken out and placed in the graphite boat by the transporting member. In this way, not only the transfer steps of the silicon wafers are increased, resulting in a longer production cycle of the solar cell, but also the silicon wafers are easily collided and worn during the transfer process, which has an adverse effect on the performance of the produced solar cell. Utility Model Content

[0004] The present application discloses a flower basket and a mechanism for loading and unloading silicon wafers, which can not only effectively reduce the steps of transferring the silicon wafers in the flower basket to the graphite boat, shorten the production cycle of solar cell wafers, and reduce costs, but also reduce the probability of collision, wear, etc. of the silicon wafers during the transmission process, thereby improving the performance of the produced solar cell wafers.

[0005] In order to achieve the above-mentioned purpose, the present application discloses a flower basket, comprising:

[0006] Two fixing plates, the two fixing plates are arranged opposite to each other;

[0007] A support rod, wherein the number of the support rods is multiple, and the multiple support rods are connected between the two fixed plates. Each of the support rods includes multiple support rod segments, and each of the support rod segments is provided with a convex tooth. A receiving groove for accommodating a silicon wafer is formed between two adjacent convex teeth. Two adjacent support rod segments are movably connected along the axial direction of the support rod so that the spacing between two adjacent convex teeth can be adjusted.

[0008] In a first possible implementation manner, a limiting structure is provided between two adjacent support rod segments, and the limiting structure is configured to limit a sliding range of the support rod segment along the axial direction of the support rod.

[0009] In a first possible implementation manner, the maximum distance between two adjacent protruding teeth is configured to match the distance between two adjacent boat sheets in the graphite boat.

[0010] In a first possible implementation, a plug-in column is formed at one end of the support rod segment, and a plug-in hole is formed at the other end of the support rod segment, the plug-in column matches the size of the plug-in hole, the plug-in column of one of the two adjacent support rod segments cooperates with and plugs into the plug-in hole of the other support rod segment, so that the two adjacent support rod segments are connected by axial sliding along the support rod, and the limiting structure is arranged between the plug-in column and the plug-in hole on the adjacent support rod segment.

[0011] In a first possible implementation, the limiting structure includes a limiting protrusion provided on the side wall of the plug-in column and a limiting groove provided on the inner wall of the plug-in hole, the limiting groove extends along the axial direction of the support rod, and the limiting protrusion can be slidably penetrated into the limiting groove on the adjacent support rod segment; or

[0012] The limiting structure includes the limiting groove arranged on the side wall of the plug-in column and the limiting protrusion arranged on the inner wall of the plug-in hole along the axial direction of the support rod. The limiting groove extends along the axial direction of the support rod, and the limiting protrusion can be slidably penetrated into the limiting groove on the adjacent support rod segment.

[0013] In a first possible implementation manner, along the circumference of the support rod, the width of the limiting groove matches the width of the limiting protrusion.

[0014] In a first possible implementation, the limit groove has a first end close to the plug-in column and a second end away from the plug-in column. When the limit protrusion is located at the first end of the limit groove, the distance between two adjacent protruding teeth is a first distance. When the limit protrusion is located at the second end of the limit groove, the distance between two adjacent protruding teeth is a second distance. The second distance is greater than the first distance.

[0015] In a first possible implementation manner, the plug-in column and the plug-in hole are clearance-fitted.

[0016] In a first possible implementation manner, the plug-in column is a hollow structure.

[0017] In a first possible implementation manner, the support rod is detachably connected to the fixing plate.

[0018] In a first possible implementation manner, a cross section of the protruding tooth gradually decreases from the support rod segment toward a direction away from the support rod segment.

[0019] The present application also discloses a mechanism for loading and unloading silicon wafers, comprising any of the flower baskets described above.

[0020] In a second possible implementation manner, the mechanism for loading and unloading silicon wafers further includes:

[0021] A platform, the flower basket is placed on the platform, and the support rod is arranged in a vertical direction, and two adjacent protruding teeth have a first spacing;

[0022] A lifting member, the lifting member is used to lift the fixing plate located on the upper side of the flower basket upwards so that two adjacent protruding teeth form a second interval;

[0023] The transporting member is used for transporting the silicon wafers in the flower basket to the graphite boat when the interval between two adjacent convex teeth is the second interval.

[0024] Compared with the prior art, the beneficial effects of this application are:

[0025] In the present application, two adjacent support rod sections are movably connected along the axial direction of the support rod so that the spacing between two adjacent convex teeth can be adjusted, and the size of the accommodating groove along the axial direction of the support rod can be adjusted, that is, the spacing between two adjacent silicon wafers can be adjusted. When an empty flower basket needs to be transported or silicon wafers need to be placed in the flower basket, the spacing between the two adjacent convex teeth can be reduced to reduce the spacing between the two adjacent silicon wafers, so as to reduce the volume of the flower basket, facilitate the transportation of the flower basket, or facilitate the transportation of the flower basket and the silicon wafers in the flower basket; when multiple silicon wafers in the flower basket need to be transported to a graphite boat, the spacing between the two adjacent convex teeth can be increased, such as adjusting it to the distance between the two adjacent boat slices of the graphite boat. The spacing between them is roughly the same, so that the spacing between two adjacent silicon wafers is roughly the same as the spacing between two adjacent boat sheets of the graphite boat, so that the transport piece can directly transport multiple silicon wafers in the flower basket to the graphite boat. Compared with the method of transporting silicon wafers from the flower basket to the graphite boat through structures such as conveyor belts and variable pitch flower baskets, on the one hand, it simplifies the steps of transporting silicon wafers from the flower basket to the graphite boat, shortening the production cycle of solar cells. On the other hand, it reduces the number of structures for transporting silicon wafers and reduces costs. Thirdly, it effectively reduces the probability of collision, wear, etc. of silicon wafers during transportation, thereby improving the performance of the produced solar cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a structural schematic diagram of a flower basket provided in an embodiment of the present application;

[0028] Figure 2 is a structural schematic diagram when the spacing between the convex teeth on two adjacent support rod segments provided by an embodiment of the present application is a first spacing;

[0029] Figure 3 It is a structural schematic diagram of a case where the spacing between the convex teeth on two adjacent support rod segments provided by an embodiment of the present application is a second spacing;

[0030] Figure 4 yes Figure 1 AA section view in;

[0031] Figure 5 It is a structural schematic diagram of a mechanism for loading and unloading silicon wafers provided in an embodiment of the present application.

[0032] Description of reference numerals:

[0033] 1-fixed plate; 2-support rod; 21-support rod section; 211-plug-in column; 212-plug-in hole; 22-convex tooth; 221-accommodating groove; 23-limiting structure; 231-limiting protrusion; 232-limiting groove; 2321-first end; 2322-second end;

[0034] 100-mechanism for loading and unloading silicon wafers; 10-flower basket; 20-platform; 30-lifting piece; 200-silicon wafer. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In this application, the terms "installed", "set", "provided with", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0037] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise specified, "plurality" means two or more.

[0038] In the related art, the flower basket has a plurality of protruding teeth, a silicon wafer is placed between each two adjacent protruding teeth, and the spacing between the two adjacent protruding teeth is usually 5 mm, that is, the spacing between the two adjacent silicon wafers in the flower basket is 5 mm. The graphite boat includes a plurality of boat sheets, a silicon wafer is placed between each two adjacent boat sheets, and the spacing between the two adjacent boat sheets is 12 mm, that is, the spacing between the two adjacent silicon wafers in the graphite boat is 12 mm. When placing the silicon wafers in the flower basket into the graphite boat, the silicon wafers in the flower basket need to be first transferred one by one to the variable pitch flower basket through the conveyor belt. The structure of the variable pitch flower basket is roughly the same as that of the flower basket, and the spacing between two adjacent convex teeth in the variable pitch flower basket is 12mm; then, the flower basket is placed vertically so that the multiple silicon wafers in the flower basket are arranged at intervals in the vertical direction, and then the silicon wafers in the variable pitch flower basket are transferred to the graphite boat through a transporting member, such as a manipulator, wherein the manipulator includes a plurality of suction cups, each of which can absorb and transfer a silicon wafer, and the spacing between two adjacent suction cups is the same as the spacing between two adjacent boat pieces in the graphite boat. In this way, although the silicon wafers in the flower basket can be placed in the graphite boat, it will result in more steps for transferring the silicon wafers from the flower basket to the graphite boat, resulting in a longer production cycle of the solar cell slices, and it is also easy to cause collision, wear, contamination, etc. of the silicon wafers during the transfer process, which will have an adverse effect on the performance of the produced solar cell slices.

[0039] In view of this, the present application discloses a flower basket and a mechanism for loading and unloading silicon wafers, which can not only effectively reduce the steps of transferring the silicon wafers in the flower basket to the graphite boat, shorten the production cycle of solar cells and reduce costs, but also reduce the probability of collision, wear, contamination, etc. of the silicon wafers during transportation, thereby improving the performance of the produced solar cells.

[0040] The technical solution of the present application will be further described below in conjunction with specific embodiments and drawings.

[0041] Embodiment 1

[0042] Figure 1 The figure shows a structural schematic diagram of a flower basket provided in an embodiment of the present application. Figure 2 The figure is a schematic diagram of the structure when the spacing between the protruding teeth on two adjacent support rod segments provided by the embodiment of the present application is the first spacing. Figure 3 The figure shows a schematic diagram of a structure in which the spacing between the protruding teeth on two adjacent support rod segments provided by an embodiment of the present application is the second spacing. Figure 4 Shown is Figure 1 For the AA section view in Figure 1-Figure 4 shown.

[0043] The present embodiment provides a flower basket, comprising two fixed plates 1 and a support rod 2. The two fixed plates 1 are arranged opposite to each other; there are multiple support rods 2, and the multiple support rods 2 are connected between the two fixed plates 1. Each support rod 2 comprises multiple support rod segments 21, and each support rod segment 21 is provided with a convex tooth 22. A receiving groove 221 for receiving a silicon wafer is formed between two adjacent convex teeth 22. Two adjacent support rod segments 21 are movably connected along the axial direction of the support rod 2, so that the distance between two adjacent convex teeth 22 is adjustable.

[0044] In this embodiment, a plurality of support rods 2 are connected between two fixed plates 1, and each support rod 2 includes a plurality of support rod segments 21, each support rod segment 21 is provided with a convex tooth 22, and a receiving groove 221 for receiving silicon wafers is formed between two adjacent convex teeth 22, so that the flower basket 10 can hold multiple silicon wafers, and there is a gap between two adjacent silicon wafers to prevent collision and friction between the two adjacent silicon wafers.

[0045] The two adjacent support rod sections 21 are movably connected along the axial direction of the support rod 2, so that the spacing between the two adjacent convex teeth 22 can be adjusted, so that the size of the accommodating groove 221 along the axial direction of the support rod 2 can be adjusted, that is, the spacing between the two adjacent silicon wafers can be adjusted. When it is necessary to transport an empty flower basket 10 or to place silicon wafers in the flower basket 10, the spacing between the two adjacent convex teeth 22 can be reduced to reduce the spacing between the two adjacent silicon wafers, so as to reduce the volume of the flower basket 10, facilitate the transportation of the flower basket 10, or facilitate the transportation of the flower basket 10 and the silicon wafers in the flower basket 10; when it is necessary to transport multiple silicon wafers in the flower basket 10 to a graphite boat, the spacing between the two adjacent convex teeth 22 can be increased, such as adjusting it to the same spacing as the graphite boat. The spacing between two adjacent boat pieces is roughly the same, so that the spacing between two adjacent silicon wafers is roughly the same as the spacing between two adjacent boat pieces of the graphite boat, so that the transport piece can directly transport multiple silicon wafers in the flower basket 10 to the graphite boat. Compared with the method of transporting silicon wafers from the flower basket 10 to the graphite boat through structures such as conveyor belts and variable pitch flower baskets, on the one hand, it simplifies the steps of transporting silicon wafers from the flower basket 10 to the graphite boat, shortening the production cycle of solar cells. On the other hand, it reduces the number of structures for transporting silicon wafers and reduces costs. Thirdly, it effectively reduces the probability of collision, wear, etc. of silicon wafers during transportation, thereby improving the performance of the produced solar cells.

[0046] Among them, the spacing between two adjacent protruding teeth 22 is adjustable, so that the spacing between two adjacent silicon wafers can be adjusted. For example, the spacing between two adjacent silicon wafers can be adjusted between 5mm and 12mm, or between 6mm and 13mm, or between 5mm and 11mm, which is not limited here.

[0047] The number of the support rods 2 can be five, six or more, which is not limited here.

[0048] The material of the support rod 2 can be any one of polyethylene, polypropylene, polytetrafluoroethylene, etc., which is not limited here. The material of the fixing plate 1 can be any one of polyethylene, polypropylene, stainless steel, etc., which is not limited here.

[0049] Alternatively, if Figure 2 and Figure 3 As shown, a limiting structure 23 is provided between two adjacent support rod segments 21 , and the limiting structure 23 is configured to limit the sliding range of the support rod segment 21 along the axial direction of the support rod 2 .

[0050] Thus, the spacing between two adjacent protruding teeth 22 can be adjusted between the minimum spacing and the maximum spacing to prevent the spacing between two adjacent protruding teeth 22 from being too small, resulting in collision and friction between two adjacent silicon wafers. At the same time, it can also prevent the spacing between two adjacent protruding teeth 22 from being too large, resulting in the spacing between two adjacent silicon wafers being difficult to transport the silicon wafers in the flower basket 10 to the graphite boat.

[0051] The maximum distance between two adjacent protruding teeth 22 is configured to match the distance between two adjacent boat sheets in the graphite boat.

[0052] Therefore, when the silicon wafers in the flower basket 10 are transported to the graphite boat, it is only necessary to adjust the distance between two adjacent protruding teeth 22 to the maximum so that the transporting member can directly transport the silicon wafers in the flower basket 10 to the graphite boat, which facilitates the adjustment of the distance between two adjacent protruding teeth 22.

[0053] Of course, the maximum spacing between two adjacent protruding teeth 22 can also be configured to be slightly larger or slightly smaller than the spacing between two adjacent boat sheets in the graphite boat, which is not limited here.

[0054] The above-mentioned axial movable connection between the two adjacent support rod segments 21 along the support rod 2 can have multiple implementation methods. In one possible implementation method, a slider can be formed at one end of the support rod segment 21, and a slide groove can be formed at the other end. The slide groove extends along the axial direction of the support rod 2. The slider of one of the two adjacent support rod segments 21 can be slidably embedded in the slide groove of the other support rod segment 21, and the two adjacent support rod segments 21 are slidably connected along the axial direction of the support rod 2.

[0055] In another possible implementation, Figure 2 and Figure 3As shown, a plug-in column 211 is formed at one end of the support rod segment 21, and a plug-in hole 212 is formed at the other end of the support rod segment 21. The sizes of the plug-in column 211 and the plug-in hole 212 match each other. The plug-in column 211 of one of the two adjacent support rod segments 21 cooperates with the plug-in hole 212 of the other support rod segment 21 to enable the two adjacent support rod segments 21 to be slidably connected along the axial direction of the support rod 2. The limiting structure 23 is arranged between the plug-in column 211 and the plug-in hole 212 on the adjacent support rod segment 21, and the protruding tooth 22 is located at other positions of the support rod segment 21 except the plug-in column 21.

[0056] Therefore, not only can the sliding connection structure of the two adjacent support rod segments 21 be simple and easy to implement, but it can also effectively prevent the two adjacent support rod segments 21 from shaking along the radial direction of the support rod 2 when sliding, and effectively prevent the silicon wafer located in the receiving groove 221 from shaking and being worn, contaminated, etc.

[0057] The cross-sectional shape of the plug-in column 211 may be the same as the cross-sectional shape of other positions of the support rod segment 21 , which facilitates the processing of the support rod segment 21 .

[0058] The cross-sectional shape of the plug-in column 211 can be circular, oval or other irregular shapes, which are not limited here. The cross-sectional shape of the plug-in hole 212 can be substantially the same as the cross-sectional shape of the plug-in column 211 .

[0059] In addition, the inserting column 211 and the inserting hole 212 are clearance-matched.

[0060] Therefore, when two adjacent support rod sections 21 slide, the friction resistance between the plug-in column 211 and the plug-in hole 212 can be smaller, so that the sliding of the two adjacent support rod sections 21 can be smoother and the friction loss between the plug-in column 211 and the plug-in hole 212 can be effectively reduced.

[0061] Optionally, the plug-in column 211 is a hollow structure, thereby making the weight of the support rod 2 lighter, thereby reducing the weight of the flower basket 10 and facilitating the transportation of the flower basket 10 .

[0062] The above-mentioned limiting structure 23 can have multiple implementation methods. In one possible implementation method, the limiting structure 23 may include a first protrusion arranged on the side wall of the plug-in column 211, and a second protrusion and a third protrusion arranged on the inner wall of the plug-in hole 212. The second protrusion and the third protrusion are relatively arranged at an axial interval along the support rod 2, and the first protrusion can slide between the second protrusion and the third protrusion to limit the axial sliding range of the support rod segment 21 along the support rod 2.

[0063] In another possible implementation, Figure 2 and Figure 3As shown, the limiting structure 23 includes a limiting protrusion 231 provided on the side wall of the plug-in column 211 and a limiting groove 232 provided on the inner wall of the plug-in hole 212, the limiting groove 232 extends along the axial direction of the support rod 2, and the limiting protrusion 231 can be slidably inserted into the limiting groove 232 on the adjacent support rod segment 21. Alternatively, the limiting structure 23 includes a limiting groove 232 provided on the side wall of the plug-in column 211 and a limiting protrusion 231 provided on the inner wall of the plug-in hole 212 along the axial direction of the support rod 2, the limiting groove 232 extends along the axial direction of the support rod 2, and the limiting protrusion 231 can be slidably inserted into the limiting groove 232 on the adjacent support rod segment 21.

[0064] Therefore, by sliding the limiting protrusion 231 in the limiting groove 232 along the axial direction of the support rod 2, it is only necessary to set the axial length of the limiting groove 232 along the support rod 2 to limit the sliding range of two adjacent support rod segments 21. The structure is simple and easy to implement.

[0065] The limiting groove 232 may be a rectangular groove, an elliptical groove, a waist-shaped hole groove, etc., which is not limited here.

[0066] Optionally, along the circumference of the support rod 2 , the width of the limiting groove 232 matches the width of the limiting protrusion 231 .

[0067] Therefore, the limiting protrusion 231 is not prone to circumferential shaking along the support rod 2 during the sliding process in the limiting groove 232, thereby effectively preventing the two adjacent support rod segments 21 from moving along the circumferential direction of the support rod 2 when sliding, and avoiding the wear of the silicon wafer due to the circumferential movement of the silicon wafer along the support rod 2 when adjusting the spacing between the two adjacent protruding teeth 22.

[0068] Among them, along the circumference of the support rod 2, the width of the limiting groove 232 matches the width of the limiting protrusion 231. The width of the limiting groove 232 can be the same as the width of the limiting protrusion 231, or the width of the limiting groove 232 can be slightly larger than the width of the limiting protrusion 231. For example, the difference between the width of the limiting groove 232 and the width of the limiting protrusion 231 is 0.5mm, 0.8mm, etc., which is not limited here.

[0069] Alternatively, if Figure 2 and Figure 3 As shown, the limiting groove 232 has a first end 2321 close to the plug-in column 211 and a second end 2322 away from the plug-in column 211. When the limiting protrusion 231 is located at the first end 2321 of the limiting groove 232, the distance between two adjacent protruding teeth 22 is a first distance. When the limiting protrusion 231 is located at the second end 2322 of the limiting groove 232, the distance between two adjacent protruding teeth 22 is a second distance, and the second distance is greater than the first distance.

[0070] Therefore, when it is necessary to reduce the distance between two adjacent protruding teeth 22, the limiting protrusion 231 can be slid to the first end 2321 of the limiting groove 232. When it is necessary to increase the distance between two adjacent protruding teeth 22, the limiting protrusion 231 can be slid to the second end 2322 of the limiting groove 232. The operation is convenient and simple, which improves the efficiency of adjusting the distance between two adjacent protruding teeth 22, thereby further shortening the production cycle of solar cells.

[0071] Exemplarily, when it is necessary to reduce the spacing between two adjacent protruding teeth 22, the fixing plate 1 can be pressed toward the support rod 2 by a robot, or the flower basket 10 can be placed in the vertical direction, that is, the axial direction of the support rod 2 is parallel to the vertical direction, so that the multiple support rod segments 21 move downward by their own gravity, so that the limiting protrusion 231 slides from the second end 2322 of the limiting groove 232 to the first end 2321; when it is necessary to increase the spacing between two adjacent protruding teeth 22, the fixing plate 1 can be pulled away from the support rod 2 by a robot, so that the limiting protrusion 231 slides from the first end 2321 of the limiting groove 232 to the second end 2322.

[0072] In some embodiments, the support rod 2 is detachably connected to the fixing plate 1 .

[0073] Therefore, when the flower basket 10 needs to be cleaned, the support rod 2 and the fixing plate 1 can be disassembled, which facilitates the cleaning of the fixing plate 1 and the support rod 2. After cleaning, the support rod 2 and the fixing plate 1 can also be conveniently assembled.

[0074] The support rod 2 and the fixing plate 1 may be connected by threads, by snaps or slots, or by bonding, which is not limited here.

[0075] In other embodiments, Figure 2 and Figure 3 As shown, the cross section of the protruding tooth 22 gradually decreases from the support rod segment 21 to a direction away from the support rod segment 21 .

[0076] It should be explained that the cross section of the above-mentioned protruding tooth 22 refers to the cross section of the protruding tooth 22 extending along the axial direction of the support rod 2 .

[0077] Thus, the contact area between the silicon wafer and the protruding teeth 22 can be effectively reduced, thereby effectively reducing the probability of the silicon wafer sliding in the receiving groove 221 and being damaged or contaminated by the friction of the protruding teeth 22, which is beneficial to improving the performance of the produced solar cell wafers.

[0078] The protruding teeth 22 may be pyramidal structures, prism structures or other irregular structures, as long as the cross-section of the protruding teeth 22 gradually decreases from the support rod segment 21 to a direction away from the support rod segment 21 .

[0079] Embodiment 2

[0080] This embodiment also provides a mechanism for loading and unloading silicon wafers, such as Figure 5 As shown, it includes the flower basket 10 of any one of the first embodiments.

[0081] In this embodiment, the flower basket 10 in the mechanism 100 for loading and unloading the silicon wafer 200 is any one of the flower baskets 10 in the above-mentioned embodiment 1, so the flower basket 10 in this embodiment has the technical effect of the flower basket 10 in the above-mentioned embodiment 1. Since the technical effect of the flower basket 10 has been fully explained in embodiment 1, it will not be repeated here.

[0082] Optionally, the mechanism 100 for loading and unloading silicon wafers 200 further includes a platform 20, a lifting member 30 and a transport member (not shown in the figure). The flower basket 10 is placed on the platform 20, and the support rod 2 is arranged in the vertical direction, and two adjacent protruding teeth 22 have a first spacing; the lifting member 30 is used to lift the fixing plate 1 located on the upper side of the flower basket 10 upward so that the two adjacent protruding teeth 22 form a second spacing; the transport member is used to transport the silicon wafers 200 in the flower basket 10 to the graphite boat when the spacing between the two adjacent protruding teeth 22 is the second spacing.

[0083] Thus, by placing the flower basket 10 carrying the silicon wafers 200 on the platform 20, and making the support rod 2 of the flower basket 10 along the vertical direction, and then lifting the fixing plate 1 located on the upper side of the flower basket 10 by the lifting member 30, the distance between two adjacent silicon wafers 200 in the flower basket 10 can be made to be the second larger distance, and there is no need to first transfer the silicon wafers 200 to the variable pitch flower basket to change the distance between the two adjacent silicon wafers 200, that is, the silicon wafers 200 in the flower basket 10 can be directly transported to the graphite boat by the transport member, which effectively simplifies the step of transferring the silicon wafers 200 from the flower basket 10 to the graphite boat, and can also effectively reduce the number of parts of the mechanism 100 for loading and unloading the silicon wafers 200, and can reduce the probability of collision, wear, contamination, etc. of the silicon wafers 200 during the transfer process, thereby improving the performance of the produced solar cell sheets.

[0084] Exemplarily, when transferring the silicon wafers 200 in the flower basket 10 to the graphite boat, first, the flower basket 10 carrying the plurality of silicon wafers 200 is placed on the platform 20, and the support rods 2 of the flower basket 10 are placed in the vertical direction, so that the plurality of silicon wafers 200 in the flower basket 10 are arranged in the vertical direction; then, the lifting member 30 can move to the top of the flower basket 10 and lift the fixing plate 1 located on the upper side of the flower basket 10 upward, so that the fixing plate 1 located on the upper side moves upward, driving the plurality of support rod segments 21 to move upward, so that the spacing between two adjacent protruding teeth 22 increases to the second spacing, thereby adjusting the spacing between two adjacent silicon wafers 200 from the first spacing to the second spacing; then, the transporting member picks up the plurality of silicon wafers 200 in the flower basket 10 and transports them to the position of the graphite boat, and places the plurality of silicon wafers 200 in the graphite boat accordingly, completing the operation of transferring the silicon wafers 200 from the flower basket 10 to the graphite boat, so as to perform subsequent processes on the silicon wafers 200.

[0085] In addition, after the silicon wafers 200 in the flower basket 10 are transported to the graphite boat, the lifting member 30 can release the lifting of the fixed plate 1 on the upper side, so that the fixed plate 1 and the multiple support rod segments 21 can automatically move downward under the action of their own gravity, so that the distance between two adjacent protruding teeth 22 can be adjusted from the second distance to the first distance, so as to facilitate the flower basket 10 to continue to carry the silicon wafers 200 that need to be transported.

[0086] The lifting member 30 mentioned above can have a variety of implementation methods, such as, the lifting member 30 can include a manipulator, and the manipulator can lift the fixed plate 1 located on the upper side; or, the lifting member 30 can include a cylinder and a hook, and the hook is set on the protruding end of the piston rod of the cylinder, and the fixed plate 1 located on the upper side can be hooked by the hook, and the cylinder drives the hook to move upward to drive the fixed plate 1 located on the upper side to move upward; or, the lifting member 30 can include an electric cylinder and an adsorbent, and the adsorbent is set on the piston rod of the electric cylinder, and the adsorbent can adsorb the fixed plate 1 located on the upper side, so that when the fixed plate 1 needs to be lifted upward, the fixed plate 1 located on the upper side can be adsorbed by the adsorbent, and then, the electric cylinder drives the adsorbent to move upward to drive the fixed plate 1 located on the upper side and the multiple support plate ends to move upward, so that the spacing between two adjacent protruding teeth 22 is adjusted from the first spacing to the second spacing. The above implementation methods of the lifting member 30 are relatively simple and easy to implement. Of course, the lifting member 30 can also be implemented in other ways, which are not limited here.

[0087] The transport member also has a variety of implementation methods. For example, the transport member may include a driving member and a plurality of suction cups. The driving member is connected to the plurality of suction cups respectively, and the plurality of suction cups are arranged in sequence at intervals. The interval between two adjacent suction cups may be a second interval, so that when transporting a plurality of silicon wafers 200 in the flower basket 10, the driving member may drive the plurality of suction cups to approach the silicon wafers 200 in the flower basket 10 and absorb the silicon wafers 200 in the flower basket 10 through the suction cups. Then, the driving member drives the plurality of suction cups with the silicon wafers 200 absorbed thereon to move to the graphite boat. The transporting member includes a driving member and a plurality of clamps, the driving member is connected to the plurality of clamps respectively, and the plurality of clamps are arranged in sequence at intervals, and the interval between two adjacent clamps is the second interval, and each clamp can clamp a silicon wafer 200, so that after the plurality of clamps clamp the silicon wafer 200 in the flower basket 10, the driving member can drive the plurality of clamps holding the silicon wafer 200 to move to the position of the graphite boat, and place the plurality of silicon wafers 200 in the graphite boat. Of course, the transporting member can also be implemented in other ways, which are not limited here.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A flower basket, characterized in that: include: Two fixing plates, the two fixing plates are arranged opposite to each other; A support rod, wherein the number of the support rods is multiple, and the multiple support rods are connected between the two fixed plates. Each of the support rods includes multiple support rod segments, and each of the support rod segments is provided with a convex tooth. A receiving groove for accommodating a silicon wafer is formed between two adjacent convex teeth. Two adjacent support rod segments are movably connected along the axial direction of the support rod so that the spacing between two adjacent convex teeth can be adjusted.

2. The flower basket according to claim 1, characterized in that: A limiting structure is provided between two adjacent support rod segments, and the limiting structure is configured to limit the sliding range of the support rod segment along the axial direction of the support rod.

3. The flower basket according to claim 2, characterized in that: The maximum distance between two adjacent protruding teeth is configured to match the distance between two adjacent boat sheets in the graphite boat.

4. The flower basket according to claim 2, characterized in that: A plug-in column is formed at one end of the support rod segment, and a plug-in hole is formed at the other end of the support rod segment. The plug-in column matches the size of the plug-in hole. The plug-in column of one of the two adjacent support rod segments cooperates with the plug-in hole of the other support rod segment to enable the two adjacent support rod segments to be connected by axial sliding along the support rod, and the limiting structure is arranged between the plug-in column and the plug-in hole on the adjacent support rod segment.

5. The flower basket according to claim 4, characterized in that: The limiting structure includes a limiting protrusion arranged on the side wall of the plug-in column and a limiting groove arranged on the inner wall of the plug-in hole, the limiting groove extends along the axial direction of the support rod, and the limiting protrusion can be slidably penetrated into the limiting groove on the adjacent support rod segment; or The limiting structure includes the limiting groove arranged on the side wall of the plug-in column and the limiting protrusion arranged on the inner wall of the plug-in hole along the axial direction of the support rod. The limiting groove extends along the axial direction of the support rod, and the limiting protrusion can be slidably penetrated into the limiting groove on the adjacent support rod segment.

6. The flower basket according to claim 5, characterized in that: Along the circumference of the support rod, the width of the limiting groove matches the width of the limiting protrusion.

7. The flower basket according to claim 5, characterized in that: The limiting groove has a first end close to the plug-in column and a second end away from the plug-in column. When the limiting protrusion is located at the first end of the limiting groove, there is a first spacing between two adjacent protruding teeth. When the limiting protrusion is located at the second end of the limiting groove, there is a second spacing between two adjacent protruding teeth. The second spacing is greater than the first spacing.

8. The flower basket according to claim 4, characterized in that: There is clearance fit between the plug-in column and the plug-in hole; and / or The plug-in column is a hollow structure.

9. The flower basket according to any one of claims 1 to 7, characterized in that: The support rod is detachably connected to the fixing plate.

10. A mechanism for loading and unloading silicon wafers, characterized in that: A flower basket comprising any one of claims 1 to 9; A platform, the flower basket is placed on the platform, and the support rod is arranged in a vertical direction, and two adjacent protruding teeth have a first spacing; A lifting member, the lifting member is used to lift the fixing plate located on the upper side of the flower basket upwards so that two adjacent protruding teeth form a second interval; The transporting member is used for transporting the silicon wafers in the flower basket to the graphite boat when the interval between two adjacent convex teeth is the second interval.

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