Sorting device, sorting method and battery production line

Abstract

The application belongs to the technical field of battery production, and discloses a sorting device, a sorting method and a battery production line. The sorting device comprises a sorting disc, a detection mechanism, a waste disc and a transfer mechanism. The sorting disc can rotate around its own axis. The sorting disc is provided with a plurality of detection positions in the circumferential direction. The detection positions are configured to selectively fix or release the products to be sorted. The detection mechanism is used to detect whether the size parameters of the products to be sorted are qualified. The waste disc can rotate around its own axis. The waste disc is provided with a plurality of material receiving positions in the circumferential direction. The material receiving positions are configured to selectively fix or release the unqualified products to be sorted. The transfer mechanism is arranged between the sorting disc and the waste disc. The transfer mechanism is used to transport the unqualified products to be sorted from the detection positions to the material receiving positions. The sorting device can improve the sorting efficiency, and has a simpler structure, a smaller floor area and lower production cost.

Description

Technical Field

[0001] This invention relates to the field of battery production technology, and in particular to a sorting device, sorting method and battery production line. Background Technology

[0002] In battery manufacturing, especially on high-speed production lines, deviations in battery casing dimensions may occur due to processing precision issues. Dimensional measurement is a necessary step in the production process and a crucial link in ensuring battery quality. Every battery in the production process must undergo rigorous dimensional measurement to determine whether it meets processing requirements. The result not only determines whether the battery itself is a qualified product but also affects subsequent reprocessing. Therefore, measuring and sorting the casing dimensions of produced batteries is an indispensable task for enterprises. Furthermore, online detection of battery casing dimensions and sorting of defective products during production are also of great significance for providing feedback and guidance to the production process, thereby improving product quality.

[0003] In existing methods, the measurement of battery casing dimensions is mostly done manually. Operators directly use measuring tools to inspect the batteries and judge whether they are qualified according to the company's standards. This is not only time-consuming, labor-intensive, and costly, but also inefficient and prone to missed inspections. In addition, when defective products are detected, the production line needs to be stopped and the defective products need to be manually picked out and collected. The sorting method described above is no longer applicable to the current automated production lines with greatly improved production speed.

[0004] Therefore, there is an urgent need to provide a new type of sorting device, sorting method, and battery production line to solve the above-mentioned technical problems in the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a sorting device that can sort and remove defective products during the transfer of products to be sorted, thereby improving sorting efficiency. Moreover, the sorting device has a simple structure, occupies less space, and can reduce production costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] The sorting device includes a sorting disc, a detection mechanism, a waste tray, and a transfer mechanism. The sorting disc is rotatable about its own axis and has several detection positions arranged circumferentially. The detection positions are configured to selectively fix or release products to be sorted. The detection mechanism is used to detect whether the dimensional parameters of the products to be sorted are qualified. The waste tray is rotatable about its own axis and has several receiving positions arranged circumferentially. The receiving positions are configured to selectively fix or release unqualified products to be sorted. The transfer mechanism is disposed between the sorting disc and the waste tray and is used to transport the unqualified products to be sorted from the detection positions to the receiving positions.

[0008] Optionally, the central axis of the sorting disc and the central axis of the waste disc are spaced apart and parallel, and the sorting disc and the waste disc are at the same height; wherein, the transfer mechanism is located on the line connecting the center of the sorting disc and the center of the waste disc.

[0009] Optionally, the transfer mechanism includes a fixed bracket, a first driving member, and a push plate. The first driving member is disposed on the fixed bracket, and the output end of the first driving member is connected to the push plate. When the detection position of the unqualified product to be sorted moves to the closest point to the waste tray, the push plate is located on the line connecting the center of the sorting tray and the center of the waste tray and is disposed at the end of the unqualified product to be sorted that is away from the waste tray. The first driving member is used to drive the push plate to approach the waste tray along a first direction.

[0010] Optionally, the fixed bracket is further provided with a second driving member, and the output end of the second driving member is provided with the first driving member. The second driving member can drive the first driving member to move closer to or away from the unqualified product to be sorted along a second direction, wherein the second direction is perpendicular to the first direction.

[0011] Optionally, the bottom of the product to be sorted is snapped into a fixing fixture, which can be fixedly connected to the detection position or the receiving position respectively.

[0012] Optionally, the sorting device further includes a stabilizing plate, which is disposed between the sorting disc and the waste disc and is disposed opposite to the transfer mechanism. The stabilizing plate extends along the second direction and can abut against the fixing clamp that carries the unqualified product to be sorted, so that the fixing clamp can be clamped between the stabilizing plate and the push plate.

[0013] Optionally, the circumferential outer wall of the aforementioned fixing clamp is provided with an annular snap-fit ​​groove, and at least a portion of the aforementioned stabilizing plate can be accommodated within the annular snap-fit ​​groove.

[0014] Optionally, the aforementioned detection mechanism includes multiple vision cameras, each of which is correspondingly located at one of the aforementioned detection positions, and each of the aforementioned vision cameras is communicatively connected to the aforementioned transfer mechanism.

[0015] Another object of the present invention is to provide a sorting method using a sorting device as described in any of the above embodiments, comprising the following steps: S1, a first conveyor line conveys the product to be sorted to the sorting tray, and the product to be sorted is fixed to the detection position; S2, when the sorting tray rotates, the detection mechanism begins to detect whether the product to be sorted installed at the detection position is qualified; if qualified, step S3 is executed; if unqualified, step S4 is executed; S3, the sorting tray rotates, causing the product to be sorted installed at the detection position to move to a second conveyor line, the detection position releases the product to be sorted and it is transported by the second conveyor line to the next station; S4, the sorting tray rotates, causing the unqualified product to be sorted to move to the transfer mechanism, the transfer mechanism moves the unqualified product to the receiving position of the waste tray, and after the waste tray rotates, the unqualified product to be sorted is released from the receiving position to the waste collection mechanism.

[0016] Another object of the present invention is to provide a battery production line including a sorting device as described in any of the above embodiments.

[0017] Beneficial effects:

[0018] The sorting device in this invention uses multiple detection positions on a sorting disc to install products to be sorted one-to-one. While the sorting disc rotates, a detection mechanism is used to detect the products to be sorted, picking out the unqualified products. The qualified products are transported to the next station while the sorting disc rotates. When an unqualified product is detected, a transfer mechanism set between the sorting disc and the waste tray is activated, thereby conveying the unqualified product to be sorted from the detection position to the receiving position. The waste tray receives the unqualified product and continues to rotate, thereby releasing the product to be sorted at a preset position, completing the collection and processing of unqualified products. Furthermore, the sorting disc and waste disc are always rotating, continuously conveying the products to be sorted, thus enabling real-time online detection of the products to be sorted. Even if unqualified products are detected, there is no need to stop the machine to remove the products to be sorted. Instead, the transfer mechanism transports the unqualified products to the waste disc online. This allows for the sorting and removal of unqualified products during the transfer of products to be sorted, improving sorting efficiency. Moreover, the sorting disc and waste disc used in this sorting device are both circular motion structures, which are simpler in structure and occupy less space compared to linear motion structures, thus reducing production costs. Attached Figure Description

[0019] Figure 1This is an isometric view of the sorting device provided in a specific embodiment of the present invention from a first perspective;

[0020] Figure 2 This is a second-view isometric view of the sorting device provided in a specific embodiment of the present invention with some structures hidden.

[0021] Figure 3 yes Figure 2 Enlarged view of a section at point A

[0022] Figure 4 This is a third-view axonometric view of the sorting device provided in a specific embodiment of the present invention, with some parts of the structure hidden.

[0023] Figure 5 yes Figure 4 A magnified view of a section at point B in the middle.

[0024] In the picture:

[0025] 10. Products to be sorted; 11. Fixtures; 12. Annular snap-fit ​​groove;

[0026] 100. Sorting plate; 110. Detection position;

[0027] 200. Visual camera;

[0028] 300. Transfer mechanism; 310. Push plate; 320. First driving component; 330. Fixed bracket; 340. Second driving component;

[0029] 400. Waste tray; 410. Material receiving position;

[0030] 500, Stabilizing plate; 510, Stabilizing bracket. Detailed Implementation

[0031] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0032] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0035] The first direction described in this embodiment is: Figure 1 The X direction shown is the direction of the line connecting the center of sorting tray 100 and the center of waste tray 400. The second direction is... Figure 4 The Y direction shown is the direction perpendicular to the line connecting the center of the sorting disk 100 and the center of the waste disk 400. The first direction is perpendicular to the second direction, and both are horizontal.

[0036] like Figure 1 As shown, the sorting device includes a sorting disc 100, a detection mechanism, a waste tray 400, and a transfer mechanism 300. The sorting disc 100 is rotatable around its own axis and has a plurality of detection positions 110 arranged circumferentially. The detection positions 110 are configured to selectively fix or release the product 10 to be sorted. The detection mechanism is used to detect whether the dimensional parameters of the product 10 to be sorted are qualified. The waste tray 400 is rotatable around its own axis and has a plurality of receiving positions 410 arranged circumferentially. The receiving positions 410 are configured to selectively fix or release the unqualified product 10 to be sorted. The transfer mechanism 300 is disposed between the sorting disc 100 and the waste tray 400 and is used to transport the unqualified product 10 to be sorted from the detection positions 110 to the receiving positions 410.

[0037] In this embodiment, the sorting device uses multiple detection positions 110 of the sorting disk 100 to install the products 10 to be sorted one by one. While the sorting disk 100 rotates, the detection mechanism detects the products 10 to be sorted and selects the unqualified products. The qualified products are transported to the next station while the sorting disk 100 rotates. When an unqualified product is detected, the transfer mechanism 300 set between the sorting disk 100 and the waste tray 400 is activated, thereby conveying the unqualified products 10 to be sorted from the detection positions 110 to the receiving positions 410. The waste tray 400 receives the unqualified products 10 to be sorted and continues to rotate, thereby releasing the products 10 to be sorted at a preset position, completing the collection and processing of unqualified products. In this embodiment, the sorting disc 100 and waste disc 400 are always rotating, continuously conveying the products to be sorted 10, thereby enabling real-time online detection of the products to be sorted 10. Even if unqualified products are detected, there is no need to stop the machine to remove the products to be sorted 10. Instead, the transfer mechanism 300 transports the unqualified products to the waste disc 400 online. This allows for the sorting and removal of unqualified products during the transfer of the products to be sorted 10, improving sorting efficiency. Furthermore, both the sorting disc 100 and waste disc 400 used in this sorting device are circular motion structures, which are simpler in structure and occupy less space compared to linear motion structures, thus reducing production costs.

[0038] Optionally, the detection mechanism described herein includes multiple vision cameras 200, each corresponding to one of the multiple detection positions 110, and each vision camera 200 is communicatively connected to the transfer mechanism 300. Using the vision cameras 200 to detect the products 10 to be sorted installed at the detection positions 110 allows for the detection of the products 10 to be sorted while the sorting disk 100 is rotating, improving detection efficiency. Furthermore, the automated detection efficiency of the vision cameras 200 is even higher, which will not be elaborated further here.

[0039] In this embodiment, six vision cameras 200 and detection positions 110 are arranged in a one-to-one correspondence and are evenly spaced, which will not be described in detail here. Of course, one vision camera 200 can also be used for detection, but the vision camera 200 must always be aligned in one direction. When a detection position 110 passes the vision camera 200, it detects the product 10 to be sorted. Although fewer vision cameras 200 are used, an additional fixing mechanism that does not rotate synchronously with the sorting disk 100 is required, making its structure more complex, which will not be described in detail here.

[0040] Furthermore, the central axis of the sorting disk 100 and the central axis of the waste disk 400 are spaced apart and parallel to each other, and the sorting disk 100 and the waste disk 400 are at the same height; wherein, the transfer mechanism 300 is located on the line connecting the center of the sorting disk 100 and the center of the waste disk 400. When a defective product 10 is detected, the transfer mechanism 300 is located on the center line connecting the sorting disc 100 and the waste disc 400. When the sorting disc 100 and the waste disc 400 rotate, the detection position 110, which holds the defective product 10, moves to the closest point to the waste disc 400. Then, the transfer mechanism 300 transports the defective product 10 to the receiving position 410, which is closest to the sorting disc 10. At this time, the transfer mechanism 300 moves the defective product 10 with the shortest stroke, which improves the sorting speed and efficiency. It also makes the structure of the sorting device more compact, occupies less space, and saves space costs in the production plant.

[0041] In this embodiment, the preset distance between the sorting disk 100 and the waste disk 400 is no greater than the diameter of one product 10 to be sorted. This can avoid collision between the sorting disk 100 and the waste disk 400 while minimizing the travel distance of the transfer mechanism 300. This will not be elaborated further here.

[0042] like Figure 2 and Figure 3 As shown, the transfer mechanism 300 includes a fixed bracket 330, a first driving member 320, and a push plate 310. The first driving member 320 is disposed on the fixed bracket 330, and the output end of the first driving member 320 is connected to the push plate 310. When the detection position 110, which holds the defective product to be sorted, moves to the closest point to the waste tray 400, the push plate 310 is located on the line connecting the center of the sorting tray 100 and the center of the waste tray 400, and is positioned at the end of the defective product to be sorted that is furthest from the waste tray 400. The first driving member 320 drives the push plate 310 to approach the waste tray 400 along a first direction. Specifically, the first driving member 320 is selected as a linear cylinder, which can perform linear reciprocating motion, thereby smoothly using the push plate 310 to push the defective product to be sorted 10 towards the receiving position 410 of the waste tray 400. This design is not only simple and inexpensive, but also highly automated.

[0043] Furthermore, the aforementioned fixed bracket 330 is also provided with a second driving member 340, and the output end of the second driving member 340 is provided with the aforementioned first driving member 320. The second driving member 340 can drive the first driving member 320 to move closer to or further away from the unqualified product to be sorted 10 along a second direction, wherein the second direction is perpendicular to the aforementioned first direction. That is, in this embodiment, the push plate 310 is not originally on the center line connecting the sorting disk 100 and the waste disk 400. Only after an unqualified product is detected is the push plate 310 pushed to the detection position 110 where the unqualified product is located. This can prevent the product to be sorted 10 from colliding with the push plate 310 during the rotation of the sorting disk 100, making the structure of the sorting device more reasonable and enabling continuous movement without being affected, further improving the sorting efficiency and the reliability of the device.

[0044] like Figure 4 and Figure 5 As shown, the bottom of the product to be sorted 10 is snapped into the fixing clamp 11, which can be fixedly connected to the detection position 110 or the receiving position 410 respectively. In this embodiment, the product to be sorted 10 is the cylindrical shell of a cylindrical battery, and the fixing clamp 11 used is also cylindrical, which can more firmly fix the product to be sorted 10 on the detection position 110 or the receiving position 410, improving the stability of the fixation.

[0045] Optionally, the sorting device further includes a stabilizing plate 500, which is disposed between the sorting disc 100 and the waste disc 400 and opposite to the transfer mechanism 300. The stabilizing plate 500 extends along the second direction and can abut against the fixing clamp 11 that carries the unqualified product to be sorted 10, so that the fixing clamp 11 can be clamped between the stabilizing plate 500 and the push plate 310. When the pusher plate 310 pushes the unqualified product to be sorted 10 toward the receiving position 410 of the waste tray 400, its fixing clamp 11 is not in contact with the receiving position 410 and the detection position 110 for a period of time. At this time, the product to be sorted 10 will be tilted and cannot be properly fixed on the receiving position 410. However, under the clamping action of the stabilizing plate 500 and the pusher plate 310, the product to be sorted 10 can be clamped and fixed, so as to be smoothly transported to the receiving position 410, further improving reliability.

[0046] In this embodiment, the stabilizing plate 500 is fixed on the stabilizing bracket 510 and hinged to the stabilizing bracket 510. It is subjected to a pre-tightening force opposite to the pushing force of the push plate 310, thereby providing a certain pushing force and allowing the push plate 310 to perform a clamping function, which will not be described in detail here.

[0047] Furthermore, the circumferential outer wall of the aforementioned fixing clamp 11 is provided with an annular locking groove 12, and at least a portion of the aforementioned stabilizing plate 500 can be accommodated within the annular locking groove 12. The annular locking groove 12 not only serves to lock the stabilizing plate 500, making the fit between the stabilizing plate 500 and the fixing clamp 11 tighter, but also allows the upper and lower walls of the stabilizing plate 500 to provide vertical support to the upper and lower inner walls of the annular locking groove 12, making the conveying and transfer process more stable and reliable. This further prevents unqualified products to be sorted 10 from tilting during transportation, allowing them to be smoothly fixed onto the receiving position 410, thereby further improving sorting efficiency.

[0048] This embodiment also provides a sorting method using a sorting device as described in any of the above schemes, including the following steps: S1, a first conveyor line conveys the product to be sorted 10 to the sorting disk 100, and the product to be sorted 10 is fixed to the detection position 110; S2, when the sorting disk 100 rotates, the detection mechanism begins to detect whether the product to be sorted 10 installed at the detection position 110 is qualified. If qualified, step S3 is executed; if unqualified, step S4 is executed; S3, the sorting disk 100 rotates, causing the product to be sorted 10 to be fixed to the detection position 1 ... The product 10 to be sorted installed at the detection position 110 moves to the second conveyor line. The detection position 110 releases the product 10 to be sorted and it is transported to the next station by the second conveyor line. S4, the sorting disc 100 rotates, causing the unqualified product 10 to move to the transfer mechanism 300. The transfer mechanism 300 moves the unqualified product 10 to the receiving position 410 of the waste disc 400. After the waste disc 400 rotates, it releases the unqualified product 10 from the receiving position 410 to the waste collection mechanism.

[0049] The sorting method in this embodiment uses the sorting device described above, thus possessing all the beneficial effects of the sorting device described in any of the above schemes. Specifically, with the sorting disc 100 and waste disc 400 constantly rotating, the products to be sorted 10 can be continuously transported, thereby enabling real-time online detection of the products to be sorted 10. Even if unqualified products are detected, there is no need to stop the machine to remove the products to be sorted 10. Instead, the transfer mechanism 300 transports the unqualified products online to the waste disc 400, which then transfers them to the waste collection mechanism. This allows for the sorting and removal of unqualified products during the transfer of the products to be sorted 10, improving sorting efficiency. Furthermore, both the sorting disc 100 and waste disc 400 used in this sorting device are circumferential moving structures, which are simpler in structure and occupy less space compared to linear moving structures, thus reducing production costs.

[0050] This embodiment also provides a battery production line, which includes a sorting device as described in any of the above embodiments. This battery production line possesses all the beneficial effects of the sorting device described in any of the above embodiments, specifically improving the sorting efficiency of battery casings, thereby increasing battery production efficiency; furthermore, it requires less floor space and lower plant costs, which will not be elaborated further here.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A sorting device, characterized in that, include: The sorting disk (100) is rotatable about its own axis and has a plurality of detection positions (110) arranged circumferentially. The detection positions (110) are configured to selectively fix or release the products to be sorted (10). The testing organization is used to test whether the size parameters of the product to be sorted (10) are qualified; Waste tray (400), the waste tray (400) is rotatable about its own axis, the waste tray (400) is provided with a plurality of receiving positions (410) in the circumferential direction, the receiving positions (410) are configured to selectively fix or release the unqualified products to be sorted (10). A transfer mechanism (300) is disposed between the sorting tray (100) and the waste tray (400). The transfer mechanism (300) is used to transport the unqualified product to be sorted (10) from the detection position (110) to the receiving position (410). The transfer mechanism (300) also includes a fixed bracket (330), a first driving member (320), and a push plate (310). The fixed bracket (330) is provided with a second driving member (340), which can drive the first driving member (320) to move closer to or away from the unqualified product to be sorted (10) in a second direction. The bottom of the product to be sorted (10) is snapped into the fixing fixture (11). A stabilizing plate (500) is disposed between the sorting disc (100) and the waste disc (400) and is disposed opposite to the transfer mechanism (300). The stabilizing plate (500) extends along the second direction and is capable of abutting against the fixing clamp (11) that carries the unqualified product to be sorted (10), so that the fixing clamp (11) can be clamped between the stabilizing plate (500) and the push plate (310). The circumferential outer wall of the fixing clamp (11) is provided with an annular snap-fit ​​groove (12), and at least part of the stabilizing plate (500) can be accommodated in the annular snap-fit ​​groove (12).

2. The sorting device according to claim 1, characterized in that, The central axis of the sorting disc (100) and the central axis of the waste disc (400) are spaced apart and parallel, and the sorting disc (100) and the waste disc (400) are at the same height; wherein, the transfer mechanism (300) is located on the line connecting the center of the sorting disc (100) and the center of the waste disc (400).

3. The sorting device according to claim 2, characterized in that, The first driving member (320) is disposed on the fixed bracket (330). The output end of the first driving member (320) is connected to the push plate (310). When the detection position (110) of the unqualified product to be sorted (10) moves to the closest point to the waste tray (400), the push plate (310) is located on the line connecting the center of the sorting tray (100) and the center of the waste tray (400) and is disposed at the end of the unqualified product to be sorted (10) away from the waste tray (400). The first driving member (320) is used to drive the push plate (310) to approach the waste tray (400) along the first direction.

4. The sorting device according to claim 3, characterized in that, The output end of the second driving member (340) is provided with the first driving member (320), and the second direction is perpendicular to the first direction.

5. The sorting device according to claim 4, characterized in that, The fixing clamp (11) can be fixedly connected with the detection position (110) or the receiving position (410) respectively.

6. The sorting device according to any one of claims 1-5, characterized in that, The detection mechanism includes multiple vision cameras (200), each vision camera (200) is disposed in a corresponding manner at multiple detection positions (110), and each vision camera (200) is communicatively connected to the transfer mechanism (300).

7. A sorting method, characterized in that, Using the sorting apparatus as described in any one of claims 1-6 includes the following steps: S1. The first conveyor line conveys the product to be sorted (10) to the sorting tray (100), and the product to be sorted (10) is fixed to the detection position (110). S2. When the sorting disk (100) rotates, the detection mechanism starts to detect whether the product (10) to be sorted installed at the detection position (110) is qualified. If it is qualified, step S3 is executed; if it is not qualified, step S4 is executed. S3. The sorting disk (100) rotates, causing the product (10) to be sorted installed at the detection position (110) to move to the second conveyor line. The detection position (110) releases the product (10) to be sorted and it is transported to the next station by the second conveyor line. S4. The sorting disc (100) rotates, causing the unqualified product to be sorted (10) to move to the transfer mechanism (300). The transfer mechanism (300) moves the unqualified product to be sorted (10) to the receiving position (410) of the waste disc (400). After the waste disc (400) rotates, it releases the unqualified product to be sorted (10) from the receiving position (410) to the waste collection mechanism.

8. A battery production line, characterized in that, Includes the sorting device as described in any one of claims 1-6.

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