Horizontal cylindrical surface appearance detection device

Abstract

A horizontal cylindrical surface appearance detection device comprises a feeding conveying line set, the extending direction of the feeding conveying line set is defined as the front-back direction, and the direction horizontally perpendicular to the front-back direction is defined as the left-right direction; the rear end of the feeding conveying line set is connected with the discharging conveying line set through a roller set. A roller driving assembly is arranged on the roller group; and a camera group is arranged right above the roller group. In the working process, the batteries are conveyed to the first roller, the second roller and the third roller of the roller set from the feeding conveying line set, the uniform-speed stable code scanning, photographing and discharging processes are conducted respectively, and the detection step is completed. Through combination of three groups of wheel sheets and a whole set of driving system, detection is completed in the linear transportation process of batteries, the battery appearance detection efficiency and stability are improved, the potential safety hazard that the batteries are collided and damaged is reduced, control is convenient, the occupied space is small, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the field of cylindrical lithium battery manufacturing, in particular to a horizontal cylindrical surface appearance detection device. Background Art

[0002] At present, lithium batteries have the advantages of high voltage, high energy, many cycles and long storage time, and have been widely used in large and medium-sized electric equipment and automobiles.

[0003] During the production process of cylindrical lithium batteries, the appearance of the battery may be damaged due to contact with the battery materials or during the transportation process. Therefore, it is necessary to conduct appearance inspection on the finished batteries to screen out unqualified products. The traditional method is manual visual inspection, but the efficiency of manual inspection is relatively low, and the production line is very high. Generally, the production line has more than 200PPM, so the number of inspectors is relatively large. In order to improve the efficiency of inspection and ensure the quality of inspection, automatic equipment using mechanical vision inspection has emerged. At present, the common method of mechanical vision inspection of the cylindrical surface of the battery is to mechanically rotate the battery and take pictures with a line scan camera. Since the required beat is more than 200PPM, and the line scan camera has a speed limit for taking pictures, one of the commonly used methods in the prior art is that a row of (16 or 20) batteries lie on a set of rotating shafts and rotate, and a group of line scan cameras are arranged above to take pictures. After taking pictures, the mechanism replaces the battery below. In this way, the camera and light source occupy a large space, and a row is arranged at most 4 at intervals, so the camera or battery must be able to automatically change position. However, whether it is the movement of the camera group or the movement of the battery rotation group mechanism, the mechanism is relatively bulky, which limits the speed of taking pictures. For this reason, a cam group solution with fixed cameras and individual battery movement has appeared on the market. After the batteries gather on the slide, they slide into the groove of the cam and are separated into individual batteries by the cam. Driven by two cams, they rotate and take pictures. The discharge port and a discharge wheel are engaged. Magnets are configured in the groove of the discharge wheel to absorb and transfer the batteries to the fixture of the synchronous conveyor line at the rear. This solution improves the utilization rate of the camera. One channel and one camera can achieve a cylindrical surface detection rhythm of up to 75PPM. However, in this solution, batteries are easily gathered in the slide, causing collisions between batteries and easily damaging the battery shell. At the same time, because the discharge relies on magnetic attraction, it has the limitation that it cannot be applied to aluminum shell batteries. Summary of the invention

[0004] Aiming at the problem that batteries of existing designs may contact each other, the shells may be damaged, and the batteries are not compatible with aluminum shell batteries, the utility model proposes a horizontal cylindrical surface appearance detection device.

[0005] The horizontal cylindrical surface appearance detection device includes a feeding conveyor line group. The extending direction of the feeding conveyor line group is defined as the front-back direction, and the direction perpendicular to the front-back direction horizontally is the left-right direction. The rear end of the feeding conveyor line group is connected to the discharging conveyor line group through a roller group. A roller driving assembly is provided on the roller group. A camera group is provided directly above the roller group.

[0006] The feeding conveyor line group includes four sets of feeding battery channels extending in the front-back direction and arranged side by side in the left-right direction. Battery side guards are provided on both the left and right sides of the feeding battery channels. A conveyor line driving wheel that can rotate axially in the left-right direction is provided at the front end of the feeding battery channel, and a feeding synchronizing wheel is provided at the rear end of the feeding battery channel. A first synchronous belt is connected to the conveyor line driving wheel, the feeding synchronizing wheel and the feeding battery channel. The first synchronous belt can move back and forth as the conveyor line driving wheel rolls. Several fixture blocks are equidistantly arranged in the front-back direction on the first synchronous belt, and grooves conforming to the shape of the battery are provided on the fixture blocks.

[0007] On the top of the feeding synchronous pulley, there is a discharging fork with a lower front and a higher rear; at the rear ends of the battery side guard plates, there is a set of side retaining edges connected; between the adjacent side retaining edges on the left and right, a detection channel connecting the battery channels is formed; the side close to the detection channel of the side retaining edge is defined as the inner side, and the side far from the detection channel is defined as the outer side; on the outer side of the side retaining edge, there is a driving mounting plate connected; on the outer side of the driving mounting plate, there are several bearing groups; on the top of the bearing groups, there are a feeding belt pulley shaft, a first belt pulley shaft, a second belt pulley shaft, a third belt pulley shaft and a discharging belt pulley shaft connected in sequence from front to back; on the outer side of the feeding belt pulley shaft, there is a feeding belt pulley connected, on the outer side of the first belt pulley shaft, there is a first belt pulley connected, on the outer side of the second belt pulley shaft, there is a second belt pulley connected, on the outer side of the third belt pulley shaft, there is a third belt pulley connected, and on the discharging belt pulley shaft, there is a discharging belt pulley connected; at the bottom of the bearing groups, there are a clearance avoiding driven belt pulley shaft, a wrap angle driven belt pulley shaft, a reducer shaft and a tensioning shaft passing through in sequence from front to back; on the outer side of the clearance avoiding driven belt pulley shaft, there is a clearance avoiding driven belt pulley connected, on the outer side of the wrap angle driven belt pulley shaft, there is a wrap angle driven belt pulley connected, on the outer side of the reducer shaft, there is a driving belt pulley connected, and on the outer side of the tensioning shaft, there is a tensioning driven belt pulley connected; a double-sided tooth synchronous belt is sequentially drivingly connected to the feeding belt pulley, the first belt pulley, the wrap angle driven belt pulley, the second belt pulley, the third belt pulley, the driving belt pulley, the discharging belt pulley, the tensioning driven belt pulley and the clearance avoiding driven belt pulley; the inner side of the feeding belt pulley shaft passes through the driving mounting plate and is connected to the feeding synchronous pulley; the inner side of the first belt pulley shaft passes through the driving mounting plate and is connected to a first roller in the detection channel, the inner side of the second belt pulley shaft passes through the driving mounting plate and is connected to a second roller in the detection channel, the inner side of the third belt pulley shaft passes through the driving mounting plate and is connected to a third roller in the detection channel, and the inner side of the discharging belt pulley shaft passes through the driving mounting plate and is connected to a discharging belt pulley in the detection channel; the first roller includes two first wheel discs sleeved on the first belt pulley shaft in parallel from left to right, and between the two first wheel discs, there is a code scanning position discharging fork fixed; the second roller includes two second wheel discs sleeved on the second belt pulley shaft in parallel from left to right, and between the two second wheel discs, there is an appearance detection position discharging fork fixed; the third roller includes two third wheel discs sleeved on the third belt pulley shaft in parallel from left to right, and between the two third wheel discs, there is a roller discharging position fork fixed; on the first wheel disc, the second wheel disc and the third wheel disc, there are slots fitted with the battery shape.

[0008] At the rear end of the discharging belt pulley, there is a discharging conveying line group connected, at the rear end of the discharging conveying line group, there is a secondary conveying line driving pulley, on the surfaces of the discharging conveying line group and the secondary conveying line driving pulley, there is a discharging synchronous belt, and on the surface of the discharging synchronous belt, there are several fixture blocks connected; on the surface of the discharging belt pulley, there is a flat notch corresponding to the height of the fixture blocks on the surface of the discharging synchronous belt, which can prevent the battery from being squeezed or falling into the gap between the fixture blocks.

[0009] On the left and right sides of the detection channel, there are metal frames, and at the front end of the top of the metal frames, there are a first camera group, a second camera group, a third camera group and a fourth camera group facing the four detection channels in sequence from left to right.

[0010] More specifically, a light source facing the detection channel is provided at the rear end of the top of the metal frame.

[0011] More specifically, line scan cameras and barcode scanners are provided on each of the first camera group, the second camera group, the third camera group and the fourth camera group.

[0012] More specifically, the first film, the second film and the third film have the same diameter, and the surfaces of the first film, the second film and the third film are all coated; the distance between the two second films is smaller than that between the first film and the third film, and the front and rear ends are respectively located inside the first film and the second film.

[0013] More specifically, the surfaces of the barcode scanning position discharging fork, the appearance detection position discharging fork and the roller discharging position fork are smooth.

[0014] More specifically, the diameters of the first film, the second film and the third film are at least four times the diameter of the battery, so that the battery has time to maintain a stable posture before being transported to the fork.

[0015] More specifically, the rotation speeds of the feeding synchronous pulley and the discharging belt pulley are half of the rotation speeds of the first film, the second film and the third film.

[0016] More specifically, rib plates for supporting are provided inside the mounting fixing plate.

[0017] During the working process, it is necessary to detect the first film of the battery input into the detection channel via the first synchronous belt of the feeding conveyor line group. The first roller, the second roller and the third roller in the detection channel rotate at the same speed under the action of the double-sided tooth synchronous belt. The battery moves uniformly under the clamping of the slot of the first film to the junction of the first film and the second film. Due to contacting the barcode scanning position discharging fork, it is pushed out of the first film and enters the intersection position of the first film and the second film, and is driven to rotate by the rotation of the first film and the second film, and triggers the barcode scanner to scan the code, and the data is saved by an external device; the battery is then carried by the slot of the second film to the junction of the second film and the third film. Due to the bottom contacting the appearance detection position discharging fork, it is pushed into the intersection position of the second film and the third film, and is driven to rotate by the rotation of the second film and the third film, and triggers the line scan camera to take pictures; then when the battery rotates on the third film, it is pushed out of the third film by contacting the roller discharging position fork and enters the discharging belt pulley, and then is driven by the rotation of the discharging belt pulley to fall into the jig of the discharging conveyor line to complete the detection.

[0018] Compared with the prior art, the technical effect of the present utility model is that: by combining three groups of films and a complete set of driving systems, the detection is completed during the linear transportation process of the battery, improving the efficiency and stability of the battery appearance detection, reducing the potential safety hazard of the battery being collided and damaged, being convenient to control, occupying a small space and having a low cost. Brief Description of the Drawings

[0019] Figure 1 It is a structural diagram of a horizontal cylindrical surface appearance detection device.

[0020] Figure 2 It is a partial enlarged view of the present utility model.

[0021] Figure 3 It is a front-end structural diagram of the loading conveyor line group of the present utility model.

[0022] Figure 4 It is a structural diagram of the camera group of the present utility model.

[0023] Figure 5 It is a structural diagram of the roller group of the present utility model.

[0024] Figure 6 It is a structural diagram of the detection channel of the roller group of the present utility model.

[0025] Figure 7 It is a structural diagram of the unloading conveyor line group of the present utility model. Detailed Description of the Preferred Embodiment

[0026] The following is a detailed description of the specific embodiments of the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for the purpose of illustration and explanation of the embodiments of the present utility model, and are not intended to limit the embodiments of the present utility model.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0028] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0029] In the present utility model, unless otherwise clearly defined, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral one; it may be a mechanical connection, an electrical connection, or communication with each other; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] In the present utility model, unless otherwise clearly defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher level than the second feature in terms of horizontal height. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature in terms of horizontal height.

[0031] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present 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 a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0032] The present utility model will be described in detail below with reference to the drawings and in conjunction with exemplary embodiments.

[0033] The horizontal cylindrical surface appearance detection device includes a feeding conveyor line group 100. The extending direction of the feeding conveyor line group 100 is defined as the front-back direction, and the direction perpendicular to the front-back direction horizontally is the left-right direction; the rear end of the feeding conveyor line group 100 is connected to a discharging conveyor line group 400 through a roller group 300; a roller driving assembly 500 is provided on the roller group 300; a camera group 200 is provided directly above the roller group 300;

[0034] The feeding conveyor line group 100 includes four sets of front-to-back extending and left-to-right side-by-side feeding battery channels 106; battery side guards 102 are provided on both the left and right sides of the feeding battery channels 106; a conveyor line driving wheel 105 that can rotate axially in the left-to-right direction is provided at the front end of the feeding battery channel, and a feeding synchronizing wheel 312 is provided at the rear end of the feeding battery channel; a first synchronous belt 104 is connected to the conveyor line driving wheel 105, the feeding synchronizing wheel 312 and the feeding battery channel, and the first synchronous belt 104 can move back and forth as the conveyor line driving wheel 105 rolls; several equally spaced tooling blocks 103 in the front-to-back direction are provided on the first synchronous belt, and grooves conforming to the shape of the battery are provided on the tooling blocks 103;

[0035] At the top of the feeding synchronous pulley 312, there is a discharging fork 302 with a lower front and a higher rear; at the rear ends of the battery side guard plates 102, there is a group of side retaining edges 313 connected; between the adjacent left and right side retaining edges 313, a detection channel connecting the battery channel 106 is formed; it is defined that the side of the side retaining edge close to the detection channel is the inner side, and the side far from the detection channel is the outer side; the outer side of the side retaining edge is connected with a driving mounting plate 517; on the outer side of the driving mounting plate 517, there are several bearing groups 501; at the top of the bearing group 501, there are successively connected with a feeding pulley shaft 515, a first pulley shaft 514, a second pulley shaft 519, a third pulley shaft 520 and a discharging pulley shaft 521 from front to back; on the outer side of the feeding pulley shaft 515, there is a feeding pulley 516 connected, on the outer side of the first pulley shaft 514, there is a first pulley 518 connected, on the outer side of the second pulley shaft 519, there is a second pulley 509 connected, on the outer side of the third pulley shaft 520, there is a third pulley 508 connected, and the discharging pulley shaft 521 is connected with a discharging pulley 522; at the bottom of the bearing group 501, there are successively penetrated with an avoidance driven pulley shaft 512, a wrap angle driven pulley shaft 511, a reducer shaft 507 and a tensioning shaft 505 from front to back; on the outer side of the avoidance driven pulley shaft 512, there is an avoidance driven pulley 513 connected, on the outer side of the wrap angle driven pulley shaft 511, there is a wrap angle driven pulley 510 connected, on the outer side of the reducer shaft 507, there is a driving pulley 506 connected, and on the outer side of the tensioning shaft 505, there is a tensioning driven pulley 504 connected; a double-sided tooth synchronous belt 502 is successively drivingly connected with the feeding pulley 516, the first pulley 518, the wrap angle driven pulley 510, the second pulley 509, the third pulley 508, the driving pulley 506, the discharging pulley 522, the tensioning driven pulley 504 and the avoidance driven pulley 513; the inner side of the feeding pulley shaft 515 passes through the driving mounting plate and is connected with the feeding synchronous pulley 312; the inner side of the first pulley shaft 514 passes through the driving mounting plate 517 and is connected with a first roller 311 in the detection channel, the inner side of the second pulley shaft passes through the driving mounting plate and is connected with a second roller 310 in the detection channel, the inner side of the third pulley shaft passes through the driving mounting plate and is connected with a third roller 309 in the detection channel, and the inner side of the discharging pulley shaft passes through the driving mounting plate and is connected with a discharging pulley 308 in the detection channel; the first roller includes two first wheel pieces 311-1 sleeved on the first pulley shaft in parallel from left to right, and between the two first wheel pieces 311-1, there is a code scanning position discharging fork 303 fixed; the second roller 310 includes two second wheel pieces 310-1 sleeved on the second pulley shaft in parallel from left to right, and between the two second wheel pieces 310-1, there is an appearance detection position discharging fork 304 fixed; the third roller 309 includes two third wheel pieces 309-1 sleeved on the third pulley shaft in parallel from left to right, and between the two third wheel pieces, there is a roller discharging position fork 305 fixed; on the first wheel piece, the second wheel piece and the third wheel piece, there are groove positions fitted with the battery shape;

[0036] The rear end of the blanking pulley 306 is connected to a blanking conveyor line group 400. A secondary conveyor line driving pulley 401 is provided at the rear end of the blanking conveyor line group 400. A blanking synchronous belt 404 is provided on the surfaces of the blanking conveyor line group 400 and the secondary conveyor line driving pulley 401. A number of jig blocks 103 are connected to the surface of the blanking synchronous belt; a flat notch corresponding to the height of the jig blocks on the surface of the blanking synchronous belt is provided on the surface of the blanking pulley, which can prevent the battery from being squeezed or falling into the gaps between the jig blocks;

[0037] Metal frames 204 are provided on the left and right sides of the detection channels. At the front end of the top of the metal frame 204, a first camera group 200-1, a second camera group 200-2, a third camera group 200-3, and a fourth camera group 200-4 facing the four detection channels are provided in sequence from left to right.

[0038] More specifically, a light source 201 facing the detection channels is provided at the rear end of the top of the metal frame.

[0039] More specifically, a line scan camera 202 and a barcode scanner 203 are provided on each of the first camera group, the second camera group, the third camera group, and the fourth camera group.

[0040] More specifically, the first, second, and third round plates have the same diameter, and the surfaces of the first, second, and third round plates have all been subjected to rubber coating treatment; the distance between the two second round plates is smaller than that between the first and third round plates, and the front and rear ends are respectively located inside the first and second round plates.

[0041] More specifically, the surfaces of the barcode scanning position discharge fork, the appearance detection position discharge fork, and the roller discharge position fork are smooth.

[0042] More specifically, the diameters of the first, second, and third round plates are at least four times the diameter of the battery, so that the battery has time to maintain a stable posture before being transported to the fork.

[0043] More specifically, the rotation speeds of the loading synchronous pulley and the blanking pulley are half of the rotation speeds of the first, second, and third round plates.

[0044] More specifically, rib plates for supporting are provided inside the mounting fixed plate.

[0045] During the working process, the battery to be tested is input into the first wheel of the detection channel through the first synchronous belt of the feeding conveyor line group. The first roller, the second roller and the third roller in the detection channel rotate at a constant speed under the action of the double-sided tooth synchronous belt. The battery moves at a constant speed to the junction of the first wheel and the second wheel under the clamping of the slot of the first wheel. Due to the contact with the scanning position, the discharge fork is pushed out of the first wheel and enters the intersection of the first wheel and the second wheel. It is driven to rotate by the rotation of the first wheel and the second wheel, and triggers the scanner to scan the code. , and the data is saved by an external device; the battery is then clamped by the slot of the second wheel to the junction of the second and third wheels, and because the bottom contacts the appearance inspection position discharge fork, it is pushed into the intersection of the second and third wheels, and is driven to rotate by the rotation of the second and third wheels, and triggers the line scan camera to take pictures; after that, when the battery rotates on the third wheel, it contacts the roller discharge position fork and is pushed out of the third wheel into the unloading pulley, and then driven by the rotation of the unloading pulley to fall into the fixture of the unloading conveyor line to complete the inspection.

[0046] Compared with the prior art, the technical effect of the utility model is that by combining three sets of wheels with a complete set of drive systems, the inspection is completed during the linear transportation of the battery, the efficiency and stability of the battery appearance inspection are improved, the safety hazard of battery collision and damage is reduced, the control is convenient, the space occupied is small, and the cost is low.

Claims

1. A horizontal cylindrical surface appearance detection device, characterized in that: It includes a loading conveyor line group. The extending direction of the loading conveyor line group is defined as the front-back direction, and the horizontal direction perpendicular to the front-back direction is the left-right direction. The rear end of the loading conveyor line group is connected to the unloading conveyor line group through a roller group. A roller driving assembly is provided on the roller group. A camera group is provided directly above the roller group. The loading conveyor line group includes four feeding battery channels that extend in the front-back direction and are arranged side by side in the left-right direction. Battery side guards are provided on both the left and right sides of the feeding battery channels. A conveyor line driving wheel that can rotate axially in the left-right direction is provided at the front end of the feeding battery channel, and a loading synchronous wheel is provided at the rear end of the feeding battery channel. The conveyor line driving wheel, the loading synchronous wheel and the feeding battery channel are connected with a first synchronous belt, and the first synchronous belt can move back and forth with the rotation of the conveyor line driving wheel. A plurality of jig blocks are arranged at equal distances in the front-back direction on the first synchronous belt, and grooves conforming to the shape of the battery are provided on the jig blocks. A discharging fork with a lower front and a higher rear is provided at the top of the loading synchronous wheel. A set of side blocking edges are connected to the rear ends of the battery side guards. A detection channel for connecting the battery channels is formed between the adjacent side blocking edges on the left and right. The side close to the detection channel of the side blocking edge is defined as the inner side, and the side far from the detection channel is defined as the outer side. A driving mounting plate is connected to the outer side of the side blocking edge. A plurality of bearing groups are provided on the outer side of the driving mounting plate. The top of the bearing group is sequentially connected with a loading belt wheel shaft, a first belt wheel shaft, a second belt wheel shaft, a third belt wheel shaft and an unloading belt wheel shaft from front to back. A loading belt wheel is connected to the outer side of the loading belt wheel shaft, a first belt wheel is connected to the outer side of the first belt wheel shaft, a second belt wheel is connected to the outer side of the second belt wheel shaft, a third belt wheel is connected to the outer side of the third belt wheel shaft, and an unloading belt wheel is connected to the unloading belt wheel shaft. An avoidance driven belt wheel shaft, a wrap angle driven belt wheel shaft, a reducer shaft and a tensioning shaft are sequentially penetrated through the bottom of the bearing group from front to back. An avoidance driven belt wheel is connected to the outer side of the avoidance driven belt wheel shaft, a wrap angle driven belt wheel is connected to the outer side of the wrap angle driven belt wheel shaft, a driving belt wheel is connected to the outer side of the reducer shaft, and a tensioning driven belt wheel is connected to the outer side of the tensioning shaft. A double-sided toothed synchronous belt is sequentially drivingly connected to a loading pulley, a first pulley, a wrap angle driven pulley, a second pulley, a third pulley, a driving pulley, an unloading pulley, a tension driven pulley and an avoidance driven pulley; the inner side of the loading pulley shaft passes through the driving mounting plate and is connected to the loading synchronous pulley; the inner side of the first pulley shaft passes through the driving mounting plate and is connected to a first roller in the detection channel, the inner side of the second pulley shaft passes through the driving mounting plate and is connected to a second roller in the detection channel, the inner side of the third pulley shaft passes through the driving mounting plate and is connected to a third roller in the detection channel, and the inner side of the unloading pulley shaft passes through the driving mounting plate and is connected to the unloading pulley in the detection channel; the first roller comprises two first wheel discs sleeved on the first pulley shaft in parallel from left to right, and a code scanning position discharging fork is fixed between the two first wheel discs; the second roller comprises two second wheel discs sleeved on the second pulley shaft in parallel from left to right, and an appearance detection position discharging fork is fixed between the two second wheel discs; the third roller comprises two third wheel discs sleeved on the third pulley shaft in parallel from left to right, and a roller discharging position fork is fixed between the two third wheel discs; groove positions fitted with the outer shape of the battery are provided on the first wheel disc, the second wheel disc and the third wheel disc; A material unloading conveying line group is connected to the rear end of the unloading pulley, a secondary conveying line driving pulley is arranged at the rear end of the material unloading conveying line group, a material unloading synchronous belt is arranged on the surfaces of the material unloading conveying line group and the secondary conveying line driving pulley, and a plurality of fixture blocks are connected to the surface of the material unloading synchronous belt; a flat notch corresponding to the height of the fixture blocks on the surface of the material unloading synchronous belt is provided on the surface of the unloading pulley; Metal frames are arranged on the left and right sides of the detection channel, and a first camera group, a second camera group, a third camera group and a fourth camera group facing the four detection channels are sequentially arranged from left to right at the front end of the top of the metal frame; a line scan camera and a code scanner are arranged on each of the first camera group, the second camera group, the third camera group and the fourth camera group.

2. A horizontal cylindrical surface appearance detection device according to claim 1, characterized in that: A light source facing the detection channel is arranged at the rear end of the top of the metal frame.

3. A horizontal cylindrical surface appearance detection device according to claim 2, characterized in that: The first wheel disc, the second wheel disc and the third wheel disc have the same diameter, and the surfaces of the first wheel disc, the second wheel disc and the third wheel disc are all subjected to rubber coating treatment; the distance between the two second wheel discs is smaller than that between the first wheel disc and the third wheel disc, and the front and rear ends of the second wheel disc are respectively located inside the first wheel disc and the second wheel disc.

4. A horizontal cylindrical surface appearance detection device according to claim 3, characterized in that: The surfaces of the code scanning position discharging fork, the appearance detection position discharging fork and the roller discharging position fork are smooth.

5. A horizontal cylindrical surface appearance detection device according to claim 4, characterized in that: The diameters of the first wheel disc, the second wheel disc and the third wheel disc are at least four times the diameter of the battery.

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