Equipment for screening cylindrical battery cells

Abstract

The utility model discloses equipment for screening cylindrical battery cells, which comprises a rack, the rack is provided with a feeding device, a detection device and a screening device, the feeding device is used for storing the cylindrical battery cells to be detected and providing the cylindrical battery cells one by one, the detection device is used for detecting the cylindrical battery cells to determine the state, and the screening device is used for screening and storing the cylindrical battery cells according to the detection result. The screening device comprises a first screening mechanism, the first screening mechanism comprises a first bearing piece, a first material stirring piece, a first left material bin and a first right material bin, the screening device further comprises a second screening mechanism, and the second screening mechanism comprises a rear side material pushing piece, a second bearing piece, a second material stirring piece, a second left material bin and a second right material bin. The equipment for screening the cylindrical battery cells is provided with a plurality of bins and large in storage space, and the requirement for classified storage after screening is met.

Description

Technical Field

[0001] The utility model relates to screening equipment, in particular to equipment for screening cylindrical electric cores. Background Art

[0002] After completing the production of cylindrical battery cells, they also need to be classified according to their performance, so as to improve product consistency and meet different application needs.

[0003] For screening, the tested cylindrical cells can be pushed into horizontal material channels arranged up and down, or they can be pushed to the left or right into corresponding silos.

[0004] However, the former has a small single horizontal channel space and low storage capacity, while the latter has a small number of silos, which makes it difficult to meet multiple classification needs. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a device for screening cylindrical battery cells, which has a plurality of silos and a large storage space to meet the needs of classified storage after screening.

[0006] According to an embodiment of the utility model, a device for screening cylindrical battery cells includes a frame, the frame is provided with a feeding device, a detection device and a screening device, the feeding device is used to store the cylindrical battery cells to be detected and provide them one by one, the detection device is used to detect the cylindrical battery cells to clarify the state, the screening device is used to screen and store the cylindrical battery cells according to the detection results, the screening device includes a first screening mechanism, the first screening mechanism includes a first supporting member for supporting the falling cylindrical battery cells, and the cylindrical battery cells on the first supporting member are pushed to the right or to the left. The screening device further comprises a first material shifting member for moving the cylindrical battery cells on the first supporting member, a first left material bin located on the left side of the first supporting member, and a first right material bin located on the right side of the first supporting member. The screening device also includes a second screening mechanism, the second screening mechanism including a rear pushing member for pushing the cylindrical battery cells on the first supporting member forward, a second supporting member for supporting the cylindrical battery cells pushed by the rear pushing member, a second material shifting member for shifting the cylindrical battery cells on the second supporting member to the right or to the left, a second left material bin located on the left side of the second supporting member, and a second right material bin located on the right side of the second supporting member.

[0007] According to an apparatus for screening cylindrical battery cells according to an embodiment of the utility model, the top surface of the first supporting member is higher than the top surface of the second supporting member, the top surface of the first supporting member has a first supporting recess for accommodating the bottom of the cylindrical battery cell, and the top surface of the second supporting member has a second supporting recess for accommodating the bottom of the cylindrical battery cell.

[0008] According to a device for screening cylindrical battery cells according to an embodiment of the utility model, the second supporting member is provided with a transition member, the transition member is arranged between the first supporting recess and the second supporting recess, the transition member is provided with a transition groove, and the transition groove accommodates the cylindrical battery cell to slide from the first supporting recess to the second supporting recess.

[0009] According to a device for screening cylindrical battery cells in an embodiment of the utility model, the first left material bin and the second left material bin share a left side plate, the left side plate is used to form the wall of the material bin, the first right material bin and the second right material bin share a right side plate, the right side plate is used to form the wall of the material bin, and the transition piece is located between the left side plate and the right side plate.

[0010] According to a device for screening cylindrical battery cells in an embodiment of the utility model, the transition piece includes a left block and a right block, and adjacent sides of the left block and the right block are respectively provided with a left bevel and a right bevel, and the left bevel and the right bevel cooperate to form the transition groove.

[0011] According to an embodiment of the utility model, a device for screening cylindrical battery cells, the first material shifting member or the second material shifting member includes a material shifting rod and a driving rod arranged in parallel and a turning rod connecting the material shifting rod and the driving rod, the material shifting rod is arranged above the corresponding supporting member, the driving rod is arranged below the corresponding supporting member, and the driving rod is connected to a cylinder.

[0012] According to an apparatus for screening cylindrical battery cells in an embodiment of the utility model, the feeding device, the detection device and the screening device are arranged in sequence from top to bottom.

[0013] According to an embodiment of the utility model, a device for screening cylindrical battery cells is provided, wherein the feeding device comprises a feeding bin, a tapered discharge port at the bottom of the feeding bin, and a dividing wheel at the tapered discharge port, wherein the radial outer surface of the dividing wheel has a dividing recess, and the dividing wheel cooperates with the tapered discharge port to provide cylindrical battery cells one by one.

[0014] According to an apparatus for screening cylindrical battery cells in an embodiment of the utility model, the detection device includes a material dropping channel located below the tapered discharge port, a front contact detection end and a rear contact detection end located in the horizontal direction of the material dropping channel.

[0015] According to a device for screening cylindrical battery cells in an embodiment of the utility model, one of the front contact detection end and the rear contact detection end can be relatively close to the other for detection.

[0016] According to an embodiment of the utility model, a device for screening cylindrical battery cells has at least the following beneficial effects:

[0017] 1. The utility model can realize automatic feeding, automatic detection and automatic screening of cylindrical battery cells by arranging a feeding device, a detection device and a screening device, realize automatic feeding, detection and screening, save labor and improve efficiency.

[0018] 2. The utility model sets a screening device so that the screening device includes a first screening mechanism, and the first screening mechanism includes a first supporting member for supporting the falling cylindrical battery cells, a first material moving member for moving the cylindrical battery cells on the first supporting member to the right or to the left, a first left material bin located on the left side of the first supporting member, and a first right material bin located on the right side of the first supporting member. Therefore, the space on the left and right sides of the detection device can be used to arrange the first left material bin and the first right material bin, which is convenient for classification and makes the space of the material bin large enough to store more cylindrical battery cells and avoid frequent material removal.

[0019] At the same time, the first left silo and the first right silo are distributed on the left and right sides of the rack, so that the cylindrical battery cells from the other silo need to be walked around the rack, which is conducive to distinction and prevents subsequent mixing.

[0020] 3. The utility model sets a screening device so that the screening device also includes a second screening mechanism, the second screening mechanism includes a rear pushing member for pushing the cylindrical battery cells on the first supporting member forward, a second supporting member for supporting the cylindrical battery cells pushed by the rear pushing member, a second shifting member for shifting the cylindrical battery cells on the second supporting member to the right or to the left, a second left bin located on the left side of the second supporting member, and a second right bin located on the right side of the second supporting member. Therefore, a second left bin and a second right bin are added in the front and rear directions of the first screening mechanism, which increases the number of bins and facilitates the storage of more types of cylindrical battery cells to meet the needs of multi-stage screening. At the same time, the sizes of the second left bin and the second right bin can be similar to those of the first left bin and the second right bin, and have a large storage capacity.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0023] Figure 1 This is a schematic diagram of the structure of a device for screening cylindrical battery cells according to an embodiment of the utility model;

[0024] Figure 2 for Figure 1 The structural diagram of the intermediate screening device;

[0025] Figure 3 for Figure 2 Schematic diagram of the structure of the first material shifting part.

[0026] Figure markings: 1-feeding device, 2-detection device, 3-screening device, 4-first screening mechanism, 5-first supporting member, 6-first material shifting member, 7-first left material bin, 8-first right material bin, 9-second screening mechanism, 10-rear side pushing member, 11-second supporting member, 12-second material shifting member, 13-second left material bin, 14-second right material bin, 15-first supporting recess, 16-second supporting recess, 17-transition member, 18-transition groove, 19-left side plate, 20-right side plate, 21-left block, 22-right block, 23-material shifting rod, 24-driving rod, 25-turning rod, 26-feeding bin, 27-tapered discharge port, 28-dividing wheel, 29-dropping channel, 30-front contact detection end. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] A device for screening cylindrical battery cells according to an embodiment of the utility model is described below in conjunction with the accompanying drawings.

[0032] Reference Figure 1 , the utility model aims to provide an embodiment of a device for screening cylindrical battery cells.

[0033] Reference Figure 1 This embodiment includes a frame, and the frame is provided with a feeding device 1, a detection device 2 and a screening device 3.

[0034] The feeding device 1 is used to store the cylindrical cells to be tested and provide them one by one, the testing device 2 is used to test the cylindrical cells to clarify their status, and the screening device 3 is used to screen and store the cylindrical cells according to the test results.

[0035] In some specific embodiments of the present invention, the feeding device 1, the detection device 2 and the screening device 3 can be arranged in sequence from top to bottom, so that the cylindrical battery cells can fall automatically by utilizing gravity, thereby reducing dependence on external forces and lowering energy consumption.

[0036] For the feeding device 1, the feeding device 1 includes a feeding bin 26, a tapered discharge port 27 located at the bottom of the feeding bin 26, and a dividing wheel 28 located at the tapered discharge port 27, wherein the radial outer surface of the dividing wheel 28 has a dividing recess, and the dividing wheel 28 cooperates with the tapered discharge port 27 to provide cylindrical battery cells one by one.

[0037] In some specific embodiments of the present invention, the feed bin 26 can include a rear plate, a left plate, a right plate, a left inclined plate and a right inclined plate, wherein the left inclined plate and the right inclined plate cooperate to form a tapered discharge port 27, so that the cylindrical cells tend to be discharged one by one, and the left plate and the right plate can increase the depth of the feed bin 26, improve the storage capacity, extend the feeding cycle, and avoid frequent feeding and increased labor intensity.

[0038] In some specific embodiments of the present invention, the rear plate can be tilted, and a left plate, a right plate, a left inclined plate and a right inclined plate are arranged on the top surface of the rear plate so that one end of the cylindrical battery cell contacts the rear plate and is aligned, so that the cylindrical battery cells are arranged neatly.

[0039] In some specific embodiments of the present invention, the material distribution wheel 28 can be a round wheel, and the radial outer surface of the round wheel is evenly distributed with material distribution recesses, so that the cylindrical battery cells are supplied in a steady rhythm.

[0040] In some specific embodiments of the present invention, the dividing wheel 28 can be an elliptical wheel or a similar Figure 1 The long strip shape shown facilitates the cylindrical battery cells to enter the material separation recess, reducing the risk of the cylindrical battery cells being stuck due to stacking on each other.

[0041] As for the detection device 2 , the detection device 2 comprises a material drop channel 29 located below the tapered discharge port 27 , a front contact detection end 30 and a rear contact detection end located in the horizontal direction of the material drop channel 29 .

[0042] It is easy to understand that when the cylindrical battery cells fall and are stacked in the blanking channel 29, the two ends of the cylindrical battery cells suspended in the upper layer will contact the front contact detection end 30 and the rear contact detection end to perform power-on detection.

[0043] In some specific embodiments of the present invention, one of the front contact detection end 30 and the rear contact detection end can be relatively close to the other for detection.

[0044] It is easy to understand that in this embodiment, by moving one of the front contact detection end 30 and the rear contact detection end or both of them at the same time, the friction between the two ends of the cylindrical battery cell and the detection end can be reduced, thereby reducing wear and helping to protect the cylindrical battery cell.

[0045] In some specific embodiments of the present invention, the front contact detection terminal 30 can be installed in the middle of a cross arm, and the two ends of the cross arm are connected to two mounting posts, and the mounting posts are connected to the rear plate to simplify the installation.

[0046] In some specific embodiments of the present invention, the rear plate may be provided with a left shell and a right shell, and a blanking channel 29 may be formed between the left shell and the right shell, thereby reducing the difficulty of forming the blanking channel 29 .

[0047] In some specific embodiments of the present invention, the left shell can be connected to the left inclined plate, and the right shell can be connected to the right inclined plate, thereby improving the installation strength of the left inclined plate and the right inclined plate and facilitating the carrying of a large number of cylindrical battery cells.

[0048] In some specific embodiments of the present invention, the left shell can be connected to a mounting column, and the right shell can be connected to a mounting column to simplify installation and facilitate layout.

[0049] In some specific embodiments of the present invention, the material dropping channel 29 may be provided with a front baffle, thereby facilitating the cylindrical battery cells to drop into the material dropping channel 29 and preventing the cylindrical battery cells from scattering.

[0050] In some specific embodiments of the present invention, a sensor may be provided at the junction of the blanking channel 29 and the tapered discharge port 27 to sense the presence or absence of cylindrical cells, thereby preventing the cylindrical cells from being squeezed against each other and deformed due to the rotation of the dividing wheel 28 .

[0051] For the screening device 3, the screening device 3 includes a first screening mechanism 4, which includes a first supporting member 5 for supporting the falling cylindrical battery cell, a first material moving member 6 for moving the cylindrical battery cell on the first supporting member 5 to the right or to the left, a first left material bin 7 located on the left side of the first supporting member 5, and a first right material bin 8 located on the right side of the first supporting member 5.

[0052] In order to overcome the problems of few screening types and small storage space, the screening device 3 also includes a second screening mechanism 9, which includes a rear pushing member 10 for pushing the cylindrical battery cells on the first supporting member 5 forward, a second supporting member 11 for supporting the cylindrical battery cells pushed by the rear pushing member 10, a second shifting member 12 for shifting the cylindrical battery cells on the second supporting member 11 to the right or to the left, a second left silo 13 located on the left side of the second supporting member 11, and a second right silo 14 located on the right side of the second supporting member 11.

[0053] It is easy to understand that this embodiment can realize automatic feeding, automatic detection and automatic screening of cylindrical battery cells by providing a feeding device 1, a detection device 2 and a screening device 3, realize automatic supply, detection and screening, save labor and improve efficiency.

[0054] It is easy to understand that in this embodiment, a screening device 3 is provided so that the screening device 3 includes a first screening mechanism 4, and the first screening mechanism 4 includes a first supporting member 5 for supporting the falling cylindrical battery cells, a first material shifting member 6 for shifting the cylindrical battery cells on the first supporting member 5 to the right or to the left, a first left material bin 7 located on the left side of the first supporting member 5, and a first right material bin 8 located on the right side of the first supporting member 5. Therefore, the space on the left and right sides of the detection device 2 can be used to arrange the first left material bin 7 and the first right material bin 8, which is convenient for classification and makes the space of the material bin large enough to store more cylindrical battery cells and avoid frequent material removal.

[0055] At the same time, the first left silo 7 and the first right silo 8 are distributed on the left and right sides of the frame, so that the cylindrical battery cells from the other silo need to be walked around the frame, which is conducive to distinction and prevents subsequent mixing.

[0056] It is easy to understand that in this embodiment, by setting up a screening device 3, the screening device 3 also includes a second screening mechanism 9, and the second screening mechanism 9 includes a rear side pushing member 10 for pushing the cylindrical battery cells on the first supporting member 5 forward, a second supporting member 11 for supporting the cylindrical battery cells pushed by the rear side pushing member 10, a second shifting member 12 for shifting the cylindrical battery cells on the second supporting member 11 to the right or to the left, a second left bin 13 located on the left side of the second supporting member 11, and a second right bin 14 located on the right side of the second supporting member 11. Therefore, a second left bin 13 and a second right bin 14 are added in the front and rear directions of the first screening mechanism 4, which increases the number of bins and facilitates the storage of more types of cylindrical battery cells to meet the needs of multi-stage screening. At the same time, the size of the second left bin 13 and the second right bin 14 can be similar to that of the first left bin 7 and the second right bin 14, and has a large storage capacity.

[0057] Reference Figure 2 In some specific embodiments of the present invention, the top surface of the first supporting member 5 can be made higher than the top surface of the second supporting member 11, the top surface of the first supporting member 5 has a first supporting recess 15 for accommodating the bottom of the cylindrical battery cell, and the top surface of the second supporting member 11 has a second supporting recess 16 for accommodating the bottom of the cylindrical battery cell.

[0058] It is easy to understand that in this embodiment, by providing the first supporting recess 15 and the second supporting recess 16, the cylindrical battery cells can stay on the first supporting member 5 and the second supporting member 11, and then, the cylindrical battery cells are driven by the corresponding material shifting members to move to the corresponding silo to meet the screening needs.

[0059] It is easy to understand that in this embodiment, by making the top surface of the first supporting member 5 higher than the top surface of the second supporting member 11, the cylindrical battery cell can slide smoothly toward the second supporting member 11, thereby preventing the second supporting member 11 from touching the edge of the cylindrical battery cell and getting stuck, allowing the screening work to proceed smoothly and at the same time preventing the cylindrical battery cell from being damaged.

[0060] In some specific embodiments of the present invention, the second supporting member 11 can be provided with a transition member 17, and the transition member 17 is arranged between the first supporting recess 15 and the second supporting recess 16. The transition member 17 is provided with a transition groove 18, and the transition groove 18 accommodates the cylindrical battery cell to slide from the first supporting recess 15 to the second supporting recess 16.

[0061] It is easy to understand that in this embodiment, by providing the transition piece 17, the cylindrical battery cells can be completely separated in the states of the first supporting piece 5 and the second supporting piece 11, so as to avoid the cylindrical battery cells being accidentally driven to roll to the wrong silo due to their proximity.

[0062] In some specific embodiments of the present invention, the first left silo 7 and the second left silo 13 can share a left side plate 19, and the left side plate 19 is used to form the wall of the silo. The first right silo 8 and the second right silo 14 can share a right side plate 20, and the right side plate 20 is used to form the wall of the silo. The transition piece 17 is located between the left side plate 19 and the right side plate 20.

[0063] It is easy to understand that, in this embodiment, by providing the left side plate 19 and the right side plate 20, the silo wall can be shared, the structure can be simplified, and the layout can be convenient.

[0064] Moreover, the transition piece 17 is located between the left plate 19 and the right plate 20, so as to prevent the cylindrical battery cells from touching the left plate 19 and the right plate 20, thereby facilitating the cylindrical battery cells to enter the corresponding silos.

[0065] In some specific embodiments of the present invention, the transition piece 17 may include a left block 21 and a right block 22 , and adjacent sides of the left block 21 and the right block 22 are respectively provided with a left bevel and a right bevel, and the left bevel and the right bevel cooperate to form the transition groove 18 .

[0066] It is easy to understand that this embodiment can simplify manufacturing and facilitate processing by setting the left block 21 and the right block 22, and can also change the distance between the left block 21 and the right block by changing the installation of the left block 21 and the right block 22 to adapt to cylindrical battery cells of different diameters.

[0067] Reference Figure 3 In some specific embodiments of the present invention, the first material shifting member 6 or the second material shifting member 12 can include a material shifting rod 23 and a driving rod 24 arranged in parallel and a turning rod 25 connecting the material shifting rod 23 and the driving rod 24, the material shifting rod 23 is arranged above the corresponding supporting member, the driving rod 24 is arranged below the corresponding supporting member, and the driving rod 24 is connected to a cylinder.

[0068] It is easy to understand that, in this embodiment, by providing the material shifting rod 23, the driving rod 24 and the turning rod 25, the cylinder can be conveniently hidden at the bottom of the supporting member, which not only meets the material shifting needs, but also reduces obstruction and does not affect the movement of the cylindrical battery cell.

[0069] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0070] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A device for screening cylindrical battery cells, comprising a frame, characterized in that: The frame is provided with a feeding device (1), a detection device (2) and a screening device (3), wherein the feeding device (1) is used to store cylindrical cells to be detected and provide them one by one, the detection device is used to detect the cylindrical cells to clarify their status, the screening device (3) is used to screen and store the cylindrical cells according to the detection results, and the screening device (3) comprises a first screening mechanism (4), the first screening mechanism (4) comprises a first supporting member (5) for supporting the falling cylindrical cells, a first material shifting member (6) for shifting the cylindrical cells on the first supporting member (5) to the right or to the left, and a first left material shifting member (6) located on the left side of the first supporting member (5). The first support member (5) is a first right material bin (8) located on the right side of the first support member (5), the screening device (3) further comprising a second screening mechanism (9), the second screening mechanism (9) comprising a rear side pushing member (10) for pushing the cylindrical battery cells on the first support member (5) forward, a second support member (11) for supporting the cylindrical battery cells pushed by the rear side pushing member (10), a second material shifting member (12) for shifting the cylindrical battery cells on the second support member (11) to the right or to the left, a second left material bin (13) located on the left side of the second support member (11), and a second right material bin (14) located on the right side of the second support member (11).

2. The device for screening cylindrical battery cells according to claim 1, characterized in that: The top surface of the first supporting member (5) is higher than the top surface of the second supporting member (11); the top surface of the first supporting member (5) has a first supporting recess (15) for accommodating the bottom of the cylindrical battery cell; and the top surface of the second supporting member (11) has a second supporting recess (16) for accommodating the bottom of the cylindrical battery cell.

3. The device for screening cylindrical battery cells according to claim 2, characterized in that: The second supporting member (11) is provided with a transition member (17), the transition member (17) being arranged between the first supporting recess (15) and the second supporting recess (16), the transition member (17) being provided with a transition groove (18), the transition groove (18) accommodating the cylindrical battery core to slide from the first supporting recess (15) to the second supporting recess (16).

4. The device for screening cylindrical battery cells according to claim 3, characterized in that: The first left silo (7) and the second left silo (13) share a left side plate (19), and the left side plate (19) is used to form the wall of the silo; the first right silo (8) and the second right silo (14) share a right side plate (20), and the right side plate (20) is used to form the wall of the silo; the transition piece (17) is located between the left side plate (19) and the right side plate (20).

5. The device for screening cylindrical battery cells according to claim 3, characterized in that: The transition piece (17) comprises a left block (21) and a right block (22), and adjacent sides of the left block (21) and the right block (22) are respectively provided with a left bevel angle and a right bevel angle, and the left bevel angle and the right bevel angle cooperate to form the transition groove (18).

6. The device for screening cylindrical battery cells according to claim 1, characterized in that: The first material shifting member (6) or the second material shifting member (12) comprises a material shifting rod (23) and a driving rod (24) arranged in parallel, and a turning rod (25) connecting the material shifting rod (23) and the driving rod (24); the material shifting rod (23) is arranged above a corresponding supporting member, the driving rod (24) is arranged below a corresponding supporting member, and the driving rod (24) is connected to a cylinder.

7. The device for screening cylindrical battery cells according to claim 1, characterized in that: The feeding device (1), the detection device (2) and the screening device (3) are arranged in sequence from top to bottom.

8. The device for screening cylindrical battery cells according to claim 7, characterized in that: The feeding device (1) comprises a feeding bin (26), a tapered discharge port (27) located at the bottom of the feeding bin (26), and a dividing wheel (28) located at the tapered discharge port (27), wherein the radial outer surface of the dividing wheel (28) has a dividing recess, and the dividing wheel (28) cooperates with the tapered discharge port (27) to provide cylindrical battery cells one by one.

9. The device for screening cylindrical battery cells according to claim 8, characterized in that: The detection device (2) comprises a material drop channel (29) located below the tapered material outlet (27), a front contact detection end (30) and a rear contact detection end located in the horizontal direction of the material drop channel (29).

10. The device for screening cylindrical battery cells according to claim 9, characterized in that: One of the front contact detection end (30) and the rear contact detection end can be relatively close to the other for detection.

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