A cylindrical product inspection system

Abstract

The present application relates to product detection technical field, disclose a kind of cylindrical product detection system, including workbench, the workbench is equipped with: end face detection component, including two end face detection light sources for respectively illuminating the two end faces of measured product, and end face detection camera for respectively photographing the two end faces;Side surface detection component, including side surface detection light source for illuminating the side surface of measured product, and side surface detection camera for photographing the side surface;Wherein, when measured product is located on predetermined position, two the end face detection component can detect the two end faces of measured product, and the side surface detection component can detect the side surface.The present application can realize the comprehensive detection of cylindrical measured product on the same detection station, reduce the required station for cylindrical product detection, while simplifying detection procedure, thereby shorten detection time, effectively improve detection efficiency, so as to realize the substantial reduction of production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product detection, and in particular to a cylindrical product detection system. BACKGROUND

[0002] In the field of machine vision detection, for the detection of defects in the appearance of cylindrical products, the required stations and processes are often complex. For example, for a pop can, at least the following positions need to be detected: defects in the appearance of the upper and lower end faces of the can body; surface scratches, defects and color difference defects of the process pattern on the can body; defects of characters and bar codes on the double-sided can bottom and outer circumferential wall.

[0003] On the basis of existing machine vision detection technology, different stations need to be configured for each detection requirement, and different detection light sources need to be configured for each station, and each detection item needs to be carried out in a separate process, resulting in a large number of stations required for defect detection of cylindrical products, complicated processes, and a long detection time, so that the production efficiency of cylindrical products is difficult to improve, and the production cost is high. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a cylindrical product detection system to solve the problem that the prior art requires a large number of stations for defect detection of cylindrical products, the processes are complicated, the detection time is long, and therefore the production efficiency of cylindrical products is difficult to improve and the production cost is high.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] A cylindrical product detection system comprises a workbench, and the workbench is provided with:

[0007] An end face detection assembly comprising two end face detection light sources for irradiating two end faces of a product to be detected, and end face detection cameras for photographing the two end faces, respectively;

[0008] A side face detection assembly comprising a side face detection light source for irradiating a side surface of a product to be detected, and a side face detection camera for photographing the side surface;

[0009] When the product to be detected is located at a predetermined position, the two end face detection assemblies can detect the two end faces of the product to be detected, and the side face detection assembly can detect the side surface.

[0010] Optionally, the end face detection light source is annular, the center of the end face detection light source forms a camera via hole, and the end face detection camera is arranged in alignment with the camera via hole.

[0011] Optionally, the end face detection light source comprises a ring-shaped base, and a ring-shaped lamp panel is arranged on the ring-shaped base, and a ring-shaped diffusion plate is arranged along the light emitting path of the ring-shaped lamp panel.

[0012] A ring-shaped heat conduction member is arranged between the ring-shaped base and the ring-shaped lamp panel.

[0013] Optionally, the end face detection light source is a ring-shaped unidirectional diffuse light source, a ring-shaped bidirectional diffuse light source, a ring-shaped multidirectional diffuse light source, a ring-shaped shadowless light source, a spherical distributed symmetric shadowless light source or a ring-shaped integrating sphere light source.

[0014] Optionally, the mounting bracket is arranged on the workbench.

[0015] An arc-shaped slot is arranged on the mounting bracket, and the side face detection light source is in sliding connection with the arc-shaped slot, and the included angle between the irradiation direction and the horizontal plane changes along with the sliding of the side face detection light source along the arc-shaped slot.

[0016] A straight sliding slot is further arranged on the mounting bracket, and the side face detection camera is in sliding connection with the straight sliding slot, and the distance between the side face detection camera and the measured product in the vertical direction changes along with the sliding of the side face detection camera along the straight sliding slot.

[0017] Optionally, the side face detection light source is a line scanning light source, and the side face detection camera is a line scanning camera.

[0018] The side face detection light source comprises a line-shaped base, and a line-shaped lamp panel is arranged on the line-shaped base, and a light condensing rod, a line-shaped diffusion plate and a grating sheet are arranged along the light emitting path of the line-shaped lamp panel.

[0019] Optionally, the conveying mechanism is arranged on the workbench, and the measured product is conveyed to the predetermined position by the conveying mechanism.

[0020] The two end face detection assemblies are arranged on the two sides of the conveying mechanism, and the side face detection assembly is arranged above the conveying mechanism.

[0021] Optionally, the conveying mechanism comprises two parallel conveying chains, and a plurality of rolling rollers are rotatably and uniformly arranged between the conveying chains, and the rolling rollers rotate when the conveying chains move.

[0022] The conveying mechanism can convey the measured product along the conveying path and / or drive the measured product to rotate.

[0023] Optionally, the weight sensing assembly is arranged on the workbench, and the weight sensing assembly comprises a weight sensor and a weight display screen electrically connected with the weight sensor.

[0024] When the product under test is located on the predetermined position, the weight of the product under test forms a pressure acting on the weight sensor.

[0025] Optionally, the end face detection light source and the side face detection light source each comprise a plurality of lamp beads, and the lamp beads are LED lamp beads with three-color light emitting chips.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] The present application provides a cylindrical product detection system, which can realize comprehensive detection of cylindrical products under test at the same detection station, reduces the required detection stations for cylindrical product detection, simplifies the detection procedure, shortens the detection time, effectively improves the detection efficiency, and thus greatly reduces the production cost. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 A structural schematic diagram of a cylindrical product detection system provided by the present application is shown in the figure.

[0030] Figure 2 A sectional view of a cylindrical product detection system provided by the present application is shown in the figure.

[0031] Figure 3 An exploded view of an end face detection light source in a cylindrical product detection system provided by the present application is shown in the figure.

[0032] Figure 4 An exploded view of a side face detection light source in a cylindrical product detection system provided by the present application is shown in the figure.

[0033] Figure 5 A structural schematic diagram of a mounting bracket in a cylindrical product detection system provided by the present application is shown in the figure.

[0034] Figure 6 A structural schematic diagram of another view of a cylindrical product detection system provided by the present application is shown in the figure.

[0035] Figure 7 A lamp bead chip structure diagram of an end face detection light source in a cylindrical product detection system provided by the present application is shown in the figure.

[0036] Figure 8A lamp bead chip structure diagram of a side detection light source in a cylindrical product detection system provided by the application;

[0037] Figure 9 A structural diagram of a general annular light source;

[0038] Figure 10 A structural diagram of an annular one-way diffused light source;

[0039] Figure 11 A structural diagram of an annular two-way diffused light source;

[0040] Figure 12 A structural diagram of an annular multi-way diffused light source;

[0041] Figure 13 A structural diagram of an annular shadowless light source;

[0042] Figure 14 A structural diagram of a spherical distribution symmetric shadowless light source;

[0043] Figure 15 A structural diagram of an annular integrating sphere light source.

[0044] In the above figures: 100, workbench; 101, mounting bracket; 102, arc-shaped slot; 103, straight sliding slot; 11, conveying mechanism; 111, rolling roller; 21, end face detection light source; 211, annular base; 212, annular heat conduction member; 213, annular lamp plate; 214, annular peripheral ring; 215, annular diffusion plate; 216, annular pressing ring; 22, side face detection light source; 221, linear base; 222, linear lamp plate; 223, light condensing rod; 224, linear diffusion plate; 225, grating sheet; 226, shell; 31, end face detection camera; 32, side face detection camera; 41, weight sensor; 42, weight display screen; 50, product to be detected. DETAILED DESCRIPTION

[0045] In order to make the objectives, characteristics and advantages of the present application more obvious and easy to understand, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0046] In the description of the present application, it needs to be understood that when one component is considered to be "connected" to another component, it can be directly connected to the other component or there can be a component arranged in the middle. When one component is considered to be "arranged on" another component, it can be directly arranged on the other component or there can be a component arranged in the middle.

[0047] In addition, the terms "long", "short", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application, and does not indicate or imply that the device or element referred to must have this particular orientation, be constructed in this particular orientation, and cannot be understood as a limitation of the present application.

[0048] The technical solutions of the present application will be further illustrated below in conjunction with the drawings and through specific embodiments.

[0049] Please refer to Figure 1 and Figure 2 , the embodiment of the present application provides a cylindrical product detection system, which comprises a workbench 100 and a mounting bracket 101 arranged on the workbench 100, and the mounting bracket 101 is provided with an end face detection assembly and a side face detection assembly.

[0050] The end face detection assembly comprises two end face detection light sources 21 for irradiating two end faces of the measured product 50 respectively, and end face detection cameras 31 for photographing the two end faces respectively;

[0051] The side face detection assembly comprises a side face detection light source 22 for irradiating the side surface of the measured product 50, and a side face detection camera 32 for photographing the side surface;

[0052] When the measured product 50 is located at a predetermined position, the two end face detection assemblies can detect the two end faces of the measured product 50, and the side face detection assembly can detect the side surface, so that the end faces and the side surface of the measured product 50 can be detected respectively at the same time.

[0053] In the embodiment, the end face detection light source 21 is annular, the center of the end face detection light source 21 forms a camera via hole, and the end face detection camera 31 is arranged in alignment with the camera via hole; when the measured product 50 is located at a predetermined position, the end face thereof is aligned with the camera via hole.

[0054] Please refer to Figure 3 , the end face detection light source 21 comprises an annular base 211, the annular base 211 is provided with an annular lamp plate 213, the annular lamp plate 213 is uniformly distributed with a plurality of lamp beads, the lamp beads are LED lamp beads; the annular lamp plate 213 is provided with an annular rim 214 at the periphery.

[0055] A ring-shaped diffusion plate 215 is arranged along the light-emitting path of the ring-shaped lamp plate 213, so that the light can be uniformly emitted through the ring-shaped diffusion plate 215 to eliminate the influence of the reflection of LED particles. The top of the ring-shaped diffusion plate 215 is provided with a ring-shaped pressing ring 216 for fixing the ring-shaped diffusion plate 215.

[0056] In addition, a ring-shaped heat conduction member 212 is arranged between the ring-shaped base 211 and the ring-shaped lamp plate 213, which is conducive to heat dissipation of the lamp plate.

[0057] Please refer to Figure 4 In the embodiment, the side detection light source 22 includes a linear base 221 and a shell 226, and the linear base 221 is provided with a linear lamp plate 222 on which LED lamp beads are distributed. A light collecting rod 223, a linear diffusion plate 224 and a grating sheet 225 are arranged along the light-emitting path of the linear lamp plate, and the shell 226 covers the linear lamp plate 222, the light collecting rod 223, the linear diffusion plate 224 and the grating sheet 225. Specifically, the light collecting rod 223 is an optical glass light collecting rod 223.

[0058] The optical glass light collecting rod 223 of the line scanning light source collects light and makes the light uniformly emitted through the diffusion film to eliminate the influence of the reflection of LED particles; the grating sheet 225 collects the uniformly emitted light again into a light band tending to be parallel to complete the line scanning illumination with uniform brightness.

[0059] Further, the side detection light source 22 is a line scanning light source, and the side detection camera 32 is a line scanning camera, which is used to realize the continuous scanning of the side surface of the measured product 50 to uniformly detect the entire surface thereof.

[0060] Please refer to Figure 5 In order to flexibly adjust the irradiation direction of the side detection light source 22 and the height of the side detection camera 32 as needed, an arc-shaped groove 102 is arranged on the mounting bracket 101, and the side detection light source 22 is slidably connected with the arc-shaped groove 102; as the side detection light source 22 slides along the arc-shaped groove 102, the included angle between the irradiation direction and the horizontal plane changes, so that the angle of the side detection light source 22 irradiating the measured product 50 changes, and thus the appropriate irradiation angle is adjusted.

[0061] In addition, a straight sliding groove 103 is arranged on the mounting bracket 101, and the side detection camera 32 is slidably connected with the straight sliding groove 103; as the side detection camera 32 slides along the straight sliding groove 103, the distance between the side detection camera 32 and the measured product 50 in the vertical direction changes, so that the appropriate focusing distance is adjusted.

[0062] Please refer to Figure 6 And refer to Figure 1 and Figure 2In the embodiment, the workbench 100 is provided with a conveying mechanism 11, and the measured product 50 is conveyed to a predetermined position by the conveying mechanism 11. The two end face detection assemblies are arranged on the two sides of the conveying mechanism 11, and the side face detection assembly is arranged above the conveying mechanism 11.

[0063] Further, the conveying mechanism 11 includes two parallel conveying chains, and a plurality of rolling rollers 111 are uniformly arranged between the conveying chains and can rotate. When the conveying chains move, the rolling rollers 111 rotate. The conveying mechanism 11 can convey the measured product 50 along the conveying path and / or drive the measured product 50 to rotate.

[0064] It can be understood that the rolling rollers 111 can rotate due to the contact with the workbench and the friction therebetween during the movement of the conveying chains, or can rotate under the driving action of the additionally arranged power source. When the measured product 50 reaches the predetermined position, the two end face detection assemblies simultaneously detect the end faces of the measured product 50, and the side surface of the measured product 50 is detected by the side face detection assembly when the measured product 50 continuously moves forward and rotates.

[0065] In addition, a stop mechanism capable of being driven to extend or retract can be arranged on the workbench 100. When the measured product 50 reaches the predetermined position, the stop mechanism extends to prevent the measured product 50 from continuing to move forward. At this time, the measured product 50 rotates at the position under the action of the rolling rollers 111, so that the entire side surface of the measured product 50 is detected by the side face detection assembly.

[0066] When the measured product 50 is conveyed to the predetermined position by the conveying mechanism 11, the in-place detection mechanism (captured by a sensor or an industrial camera, etc.) detects that the measured product 50 is in place, and the PLC of the equipment controls the conveying mechanism 11 to pause conveying. At this time, the measured product 50 is coaxial with the end face detection light source 21 located on the two sides.

[0067] The end face detection light source 21 is turned on to irradiate the end face of the measured product 50, and the end face detection camera 31 is used to capture an image. The background image recognition processing software receives the pictures of the two end faces at the same time, and after the analysis and processing of the images, the defect features are recognized, so that the detection of the end face of the measured product 50 is realized.

[0068] At the same time, the side face detection light source 22 can irradiate the side surface of the measured product 50, and the side face detection camera 32 is used to capture an image, so that the detection of the side surface of the measured product 50 is realized.

[0069] In the embodiment, the rolling roller 111 can independently rotate, so that the product 50 under test is self-transmitted, so that the side detection light source 22 can continuously illuminate the circumferential surface of the product 50 under test along with the self-transmission of the product 50 under test, and the line scanning image is taken by using the side detection light source 22; after the product 50 under test is self-transmitted for one circle, the flat image of the side surface of the product 50 under test can be obtained, so that the complete detection of the side surface of the product 50 under test is realized.

[0070] Considering that the materials and colors of different types of products 50 under test are different, and the characters, bar codes, patterns and colors of the surface features also differ; in order to adapt to different types of products 50 under test, in the embodiment, the end surface detection light source 21 and the side surface detection light source 22 each include a plurality of lamp beads, and the lamp beads are LED lamp beads with RGB three-color light emitting chips.

[0071] By using the LED lamp beads with RGB three-color light emitting chips, the corresponding color can be freely selected according to the actual inspection requirements. It can be understood that by using the background light source controller to provide a trigger signal, the constant light and the stroboscopic mode can be realized, and single-color irradiation or multi-color mixed irradiation can also be realized, so as to adapt to different detection scenes.

[0072] Please refer to Figure 7 and Figure 8 , in the end surface detection light source 21, the red light emitting chip R, the green light emitting chip G and the blue light emitting chip of the lamp bead are in triangular distribution; in the side surface detection light source 22, the red light emitting chip R, the green light emitting chip G and the blue light emitting chip of the lamp bead are in linear distribution.

[0073] In the embodiment, the cylindrical product detection system further includes a weight sensing assembly arranged on the workbench 100, the weight sensing assembly includes a weight sensor 41 and a weight display screen 42 electrically connected with the weight sensor 41; when the product 50 under test is located at the predetermined position, the weight of the product 50 under test forms a pressure acting on the weight sensor 41.

[0074] When the end surface detection assembly and the side surface detection assembly detect the defects of the appearance of the product 50 under test, the weight of the product 50 under test will trigger the weight sensor 41 located directly below. Specifically, the weight sensor 41 is a pressure strain type weighing sensor, which includes a telescopic probe. The telescopic probe will form different sinking degrees along with the size of the product weight, and the sinking moment will transmit the sensing signal to the chip in the weight sensor 41 (consistent with the principle of electronic scale), so as to obtain the measured weight data of the product 50 under test. In actual application, the weight of the filling of the product 50 under test can be detected.

[0075] In addition, the weight display screen 42 can be used to display the measured weight data in real time. It can be understood that the weight display screen 42 can be installed on the workbench 100 through a support.

[0076] The advantage of using the pressure strain type weighing sensor is that the pressure strain type weighing sensor has wide market application, is easy to obtain, has low cost, is easy to adjust and stable and reliable, and is conducive to controlling the detection cost.

[0077] It can be understood that the end face detection light source 21 in the device is not limited to the type listed in the foregoing description, and the type of the end face detection light source 21 can be replaced as needed in actual application.

[0078] For example:

[0079] As shown in Figure 9 , a general annular light source is used as the end face detection light source 21; in the general annular light source, the lamp panel P is in the shape of a circular truncated cone, and the lamp beads are distributed on the inner side of the lamp panel P, so that the light emitted by the lamp panel P is obliquely irradiated on the measured product 50. Based on this, illumination at different angles can be achieved, thereby highlighting the curved three-dimensional information on the measured product 50, so as to effectively solve the problem of shadow caused by angle illumination; the general annular light source is used in combination with a diffusion plate PC parallel to the lamp panel P, that is, it can be applied to appearance defect detection under most requirements.

[0080] As shown in Figure 10 , a ring-shaped one-way diffuse light source is used as the end face detection light source 21; in the ring-shaped one-way diffuse light source, the light emitted by the lamp panel P is perpendicular to the plane of the measured surface, and the diffusion plate DP is in the shape of a circular truncated cone and is obliquely arranged on the lamp panel P, so that the ring-shaped shadowless illumination effect can be achieved.

[0081] The ring-shaped one-way diffuse light source is suitable for a measured surface that is large in size and circular in shape, and the light emission effect of the general annular light source is more uniform, so that different light coverage environments and light effects can be formed according to different working distances and different types of measured products 50.

[0082] As shown in Figure 11 , a ring-shaped two-way diffuse light source is used as the end face detection light source 21; in the ring-shaped two-way diffuse light source, the lamp panel P is in the shape of a cylinder, the lamp beads are distributed on the inner side of the lamp panel P and are arranged along the radial direction of the cylinder formed by the lamp panel P; and the diffusion plate DP is in the shape of a circular truncated cone and is obliquely arranged on the lamp panel P.

[0083] In the ring-shaped two-way diffuse light source, the light forms a two-way high-uniformity symmetrical light field through reflection and scattering, thereby illuminating the tiny defects of the measured surface and filtering out the interference of the slight differences on the surface of the object, so as to highlight the characteristics of the excessive arc surface and the sharp change in slope.

[0084] As shown in Figure 12As shown, a ring-shaped multi-directional diffuse light source is used as the end face detection light source 21; in the ring-shaped multi-directional diffuse light source, the lamp panel P is in the shape of a ring, the lamp beads are distributed on the lamp panel P and are located on the same plane, and the lamp beads emit light rays in the same direction; the diffusion plate DP is in the shape of a sphere and is arranged on the light emitting path of the lamp panel P, thereby forming light rays that irradiate the measured plane in multiple directions.

[0085] The ring-shaped multi-directional diffuse light source can make light rays form a bidirectional high-uniform circular symmetric light field through reflection and scattering, provide uniform illumination for multi-slope objects, and eliminate differences caused by different reflection angles.

[0086] As shown, Figure 13 a ring-shaped shadowless light source is used as the end face detection light source 21; in the ring-shaped shadowless light source, the lamp panel P is in the shape of a ring, the lamp beads are distributed on the lamp panel P and are located on the same plane, and the lamp beads emit light rays in the same direction; the diffusion plate PC is in the shape of a circular arc, and the diffusion plate PC is a high-haze diffusion plate PC, which can provide a high-brightness shadowless irradiation effect.

[0087] The ring-shaped shadowless light source can make full use of light rays to achieve uniform coverage and irradiation, and is suitable for high-speed pipeline surface detection and cylindrical inner wall surface detection.

[0088] As shown, Figure 14 a spherical distributed symmetrical shadowless light source is used as the end face detection light source 21; in the spherical distributed symmetrical shadowless light source, the lamp panel P is in the shape of a cylinder, the lamp beads are distributed on the inner side of the lamp panel P and are arranged along the radial direction of the cylinder formed by the lamp panel P; and the diffusion plate PC is in the shape of a circular arc.

[0089] The spherical distributed symmetrical shadowless light source scatters light rays in different directions to form a gradual spherical distribution, so that the reflection intensity of different radian of the entire spherical target is consistent, and local reflection interference is filtered, thereby effectively removing interference caused by surface reflection of small devices.

[0090] As shown, Figure 15 a ring-shaped integrating sphere light source is used as the end face detection light source 21; in the ring-shaped integrating sphere light source, the lamp panel P is in the shape of a ring, the lamp beads are distributed on the lamp panel P and are located on the same plane, and the lamp beads emit light rays in the same direction; and the diffusion plate DP is in the shape of a complete sphere and irradiates the lamp panel P.

[0091] The ring-shaped integrating sphere light source can uniformly distribute light rays in the entire observation field of view, and can also eliminate interference caused by uneven surfaces, and is mainly used for detection of curved surfaces, irregular surfaces, concave-convex surfaces, arc surfaces, surface defects of substances with strong reflection such as metal glass surfaces, laser engraved character detection, and silk screen character detection.

[0092] Based on the foregoing description, the detection system provided by the present application has the following advantages:

[0093] The appearance detection and the weight detection of the filled content of the product 50 can be simultaneously realized, the detection station process is saved, the structure is simple and applicable, the production detection efficiency is effectively improved, and the cost investment is greatly saved. Meanwhile, the color of the light source is adjustable, and various detection requirements can be adapted.

[0094] The above-described embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A system for detecting a cylindrical product, characterized by The application relates to a product detection device, which comprises a workbench (100) provided with: end face detection assemblies, each comprising an end face detection light source (21) for irradiating two end faces of a product (50) to be detected and an end face detection camera (31) for shooting the two end faces; a side face detection assembly, which comprises a side face detection light source (22) for irradiating a side surface of the product (50) to be detected and a side face detection camera (32) for shooting the side surface; wherein, when the product (50) to be detected is located at a predetermined position, the two end face detection assemblies can detect the two end faces of the product (50) to be detected, and the side face detection assembly can detect the side surface; the end face detection light source (21) is annular, the center of the end face detection light source (21) forms a camera through hole, and the end face detection camera (31) is arranged in alignment with the camera through hole; the device further comprises a mounting bracket (101) arranged on the workbench (100); the mounting bracket (101) is provided with an arc-shaped slot (102), the side face detection light source (22) is in sliding connection with the arc-shaped slot (102), and the angle between the irradiation direction and the horizontal plane changes along with the sliding of the side face detection light source (22) along the arc-shaped slot (102); the mounting bracket (101) is further provided with a straight sliding slot (103), the side face detection camera (32) is in sliding connection with the straight sliding slot (103), and the distance between the side face detection camera (32) and the product (50) to be detected in the vertical direction changes along with the sliding of the side face detection camera (32) along the straight sliding slot (103); the side face detection light source (22) is a line scanning light source, and the side face detection camera (32) is a line scanning camera; the side face detection light source (22) comprises a linear base (221), the linear base (221) is provided with a linear lamp panel (222), a light collecting rod (223), a linear diffusion plate (224) and a grating sheet (225) are arranged along the light emitting path of the linear lamp panel.

2. The columnar product inspection system according to claim 1, characterized by, the end face detection light source (21) comprises an annular base (211), the annular base (211) is provided with an annular lamp panel (213), and an annular diffusion plate (215) is arranged along the light emitting path of the annular lamp panel (213); a ring-shaped heat conducting member (212) is arranged between the annular base (211) and the annular lamp panel (213).

3. The columnar product inspection system according to claim 1, characterized by, the end face detection light source (21) is a ring-shaped single-direction diffuse light source, a ring-shaped double-direction diffuse light source, a ring-shaped multi-direction diffuse light source, a ring-shaped shadowless light source, a spherical distributed symmetrical shadowless light source or a ring-shaped integrating sphere light source.

4. The columnar product inspection system according to claim 1, characterized by, the device further comprises a conveying mechanism (11) arranged on the workbench (100), and the product (50) to be detected is conveyed to the predetermined position by the conveying mechanism (11); the two end face detection assemblies are arranged on the two sides of the conveying mechanism (11), and the side face detection assembly is arranged above the conveying mechanism (11).

5. The columnar product inspection system according to claim 4, characterized by, The conveying mechanism (11) comprises two parallel conveying chains, a plurality of rolling rollers (111) are uniformly rotatably arranged between the conveying chains, and the rolling rollers (111) rotate when the conveying chains move; The conveying mechanism (11) can convey the measured product (50) along a conveying path and / or drive the measured product (50) to rotate.

6. The columnar product inspection system according to claim 1, wherein The weight sensing assembly comprises a weight sensor (41) and a weight display screen (42) electrically connected to the weight sensor (41). When the measured product (50) is located at the predetermined position, the weight of the measured product (50) forms a pressure acting on the weight sensor (41).

7. The columnar product inspection system according to claim 1, characterized by, The end face detection light source (21) and the side face detection light source (22) each comprise a plurality of lamp beads, and the lamp beads are LED lamp beads with three-color light emitting chips.

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