CN106226317B - Product inspection sorter - Google Patents

Product inspection sorter Download PDF

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Publication number
CN106226317B
CN106226317B CN201610843540.5A CN201610843540A CN106226317B CN 106226317 B CN106226317 B CN 106226317B CN 201610843540 A CN201610843540 A CN 201610843540A CN 106226317 B CN106226317 B CN 106226317B
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product
imaging
camera
processor
backboard
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CN106226317A (en
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胡厚植
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NANJING HENGCHUANG MAGNETIC ELECTRONICS CO Ltd
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NANJING HENGCHUANG MAGNETIC ELECTRONICS CO Ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00Measuring arrangements characterised by the use of optical techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/8851Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
    • G01N2021/8887Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sorting Of Articles (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)

Abstract

The invention provides a product inspection classifier which comprises an inspection mechanism and a classification mechanism. The inspection mechanism comprises a glide slope, an imaging device, a processor, a first detection device and a light source, wherein the imaging device comprises an imaging backboard, a camera shooting support and a camera electrically connected with the processor, and the first detection device, the light source and the camera are respectively electrically connected with the processor. The sorting mechanism comprises a sorting bracket, a sorting conveyor belt and a plurality of groups of feeding tracks. The glide slope is fixed to the imaging backboard and extends obliquely downwards to the sorting conveyor belt. The light source is arranged at the position of the imaging backboard, facing the downward slideway and located at the imaging backboard, one end of the camera shooting support is connected with the imaging backboard, and the camera faces the downward slideway and is located at the position of the imaging backboard and fixed at the other end of the camera shooting support. Through the design, the speed and the accuracy of product inspection are increased.

Description

Product inspection sorter
Technical Field
The invention relates to the technical field of product inspection and classification, in particular to a product inspection classifier.
Background
The existing product inspection mechanism detects products by using a displacement sensor, the products can be classified only according to the sizes of the products, flaws on the appearance of the products can be identified only by naked eyes, and the inspection efficiency is low and errors are easy to occur.
Disclosure of Invention
In view of the above, the embodiment of the invention provides a product inspection classifier, which can solve the above problems.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
the product inspection classifier comprises an inspection mechanism and a classification mechanism, wherein the inspection mechanism comprises a glide slope, an imaging device, a processor, a first detection device and a light source, the first detection device and the light source are respectively and electrically connected with the processor, and the classification mechanism comprises a classification bracket, a classification conveyor belt and a plurality of groups of feeding tracks;
the classifying conveyor belt is arranged on the classifying bracket, and the plurality of groups of feeding tracks are arranged on the side edge, far away from the classifying bracket, of the classifying conveyor belt at intervals; the imaging device comprises an imaging backboard, a camera shooting support and a camera electrically connected with the processor, and the glide slope is fixed on the imaging backboard and extends obliquely downwards to the classification conveyor belt; the light source is arranged on the imaging backboard and faces the position of the glidepath located on the imaging backboard; one end of the camera shooting support is connected with the imaging backboard, and the camera facing the lower slideway is positioned at the position of the imaging backboard and is fixed at the other end of the camera shooting support;
the first detection device is used for detecting whether a product passes through a part of the imaging backboard, the light source is used for illuminating the product passing through the part of the imaging backboard, which is positioned on the lower slideway, the camera is used for acquiring image information of the product and sending the image information to the processor, and the processor is used for identifying the image information and classifying the product according to an identification result, so that the classification mechanism pushes the product to a gear to which different types of products belong according to a classification result.
Preferably, the sorting bracket comprises a cross beam and a plurality of upright posts, wherein the cross beam comprises an upper surface, a lower surface and a first side surface connected between the upper surface and the lower surface;
the plurality of upright posts are vertically arranged on the lower surface of the cross beam, and the classifying conveyor belt is arranged on the first side surface of the cross beam; the upper surface interval of crossbeam is provided with a plurality of air cock supports, is provided with the air cock on every air cock support and with the second detection device that the air cock links to each other, second detection device with treater electric connection for detect whether there is the product to pass through in the air cock support department that this second detection device was located.
Preferably, each group of feeding tracks comprises a plurality of feeding tracks with different lengths, each feeding track is opposite to the air outlet of the air tap on one air tap bracket, and the upper surface of each feeding track is not higher than the upper surface of the classifying conveyor belt and lower than the air outlet of the air tap opposite to the feeding track.
Preferably, the sorting mechanism further comprises a tray, each feeding track is connected with one tray, and the feeding tracks are flush with the upper surface of the tray.
Preferably, the difference between the lengths of the feeding rails facing the air outlets of the air nozzles on the same group of air nozzle supports is larger than the width of the material tray in the feeding rail direction.
Preferably, two pulleys are fixed at two ends of the first side surface of the cross beam, the two pulleys are perpendicular to the first side surface, the sorting conveyor belt is wound on the two pulleys, and the glide slope extends obliquely downwards to the sorting conveyor belt.
Preferably, the glidepath comprises a front segment of glidepath and a rear segment of glidepath, the rear segment of glidepath comprising a first sliding surface parallel to and lower than the sliding surface of the front segment of glidepath and a second sliding surface parallel to the horizontal plane and extending to the sorting conveyor.
Preferably, the height of the second sliding surface is greater than the height of the upper surface of the sorting conveyor.
Preferably, an opening is formed in the center of the imaging backboard, one end of the front section slideway and one end of the rear section slideway extend to the opening respectively and form a fracture, the width of the fracture is smaller than that of the opening, and the camera and the light source face towards the fracture.
Preferably, the camera support is a plurality of, and a plurality of camera supports are arranged on the imaging backboard and extend to different directions, and one camera is arranged at one end of each camera support, which is far away from the imaging backboard.
The product inspection classifier provided by the embodiment of the invention collects the image information of the product through the camera and sends the image information to the processor, the processor processes the image information to identify the size of the product and flaws such as cracks, deformation, unfilled corners, bright spots, colors and the like on the surface of the product for analysis, and the product is classified according to the processing result. Through the design, the speed and the accuracy of the inspection are improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a product inspection classifier according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a connection relationship of a processor according to an embodiment of the present invention.
Fig. 3 is a schematic view of an installation position of a glidepath according to an embodiment of the present invention.
Fig. 4 is a schematic view of an installation position of a glidepath and an imaging device according to an embodiment of the invention.
Fig. 5 is a schematic structural diagram of a classification bracket according to an embodiment of the present invention.
Fig. 6 is a schematic structural diagram of another classification bracket according to an embodiment of the invention.
Fig. 7 is a schematic structural diagram of a sorting mechanism according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of an installation position of an air tap bracket and a feeding rail according to an embodiment of the invention.
Icon: 100-a product inspection classifier; 1110-an imaging backplate; 1111-a camera support; 1112-a camera; 1113-a first surface; 1114-a second surface; 1115-side; 1116-opening; 112-a glide slope; 1121-a front section slide; 1122-rear section slide; 1123-a first sliding surface; 1124-a second sliding surface; 113-a processor; 114-a light source; 115-first detection means; 121-classifying a stent; 1210-a beam; 1211-a post; 122-sorting conveyor; 1220-pulley; 123-an air tap bracket; 124-air tap; 125-a second detection device; 126-feeding tracks; 127-tray; 128-sort sub-stents.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
Referring to fig. 1 and fig. 2 together, fig. 1 is a schematic structural diagram of a product inspection classifier 100 according to an embodiment of the invention, and fig. 2 is a schematic electrical connection relationship diagram of the product inspection classifier 100 shown in fig. 1.
Wherein the product inspection sorter 100 includes an inspection mechanism and a sorting mechanism. The inspection mechanism includes a glidepath 112, an imaging device 111, a processor 113, a first detection device 115, and a light source 114, the imaging device 111 including an imaging backplate 1110, a camera mount 1111, and a camera 1112. The first detecting device 115, the light source 114 and the camera 1112 are electrically connected to the processor 113, respectively. The sorting mechanism comprises a sorting bracket 121, a sorting conveyor belt 122 and a plurality of groups of feeding tracks 126, wherein the sorting conveyor belt 122 is arranged on the sorting bracket 121, and the plurality of groups of feeding tracks 126 are arranged on the sorting conveyor belt 122 at intervals and far away from the side 1115 of the sorting bracket 121.
The camera 1112 is configured to obtain image information of products passing through the glidepath 112, send the image information to the processor 113 for identification, and the processor 113 classifies the products according to the identification result, and sets a gear to which each product belongs according to the classification result, so that each product is pushed to the corresponding gear by the classification mechanism.
Referring to fig. 3, the glidepath 112 is fixed to the imaging backboard 1110 and extends obliquely downward to the sorting mechanism so that products can be transported along the glidepath 112 to the sorting mechanism for sorting. According to practical requirements, two side surfaces forming the glidepath 112 may be perpendicular to each other, so that when a product slides along the glidepath 112, two surfaces contacting the glidepath 112 may be respectively attached to two side surfaces forming the glidepath 112. Optionally, the imaging backboard 1110 defines an opening 1116, the glidepath 112 includes a front part slideway 1121 and a rear part slideway 1122, and one end of the front part slideway 1121 and one end of the rear part slideway 1122 extend to the opening 1116 respectively and form a fracture. The other end of the front chute 1121 extends obliquely upward to a product conveying mechanism to enable the product conveying mechanism to deliver product to the glide slope 112. The rear slide 1122 extends diagonally downward to the sorting conveyor 122.
Optionally, the rear slide 1122 includes a first sliding surface 1123 and a second sliding surface 1124. The first sliding surface 1123 extends obliquely downward to the second sliding surface 1124, and the second sliding surface 1124 is parallel to the upper surface of the sorting conveyor 122 and higher than the upper surface of the sorting conveyor 122. Preferably, the second sliding surface 1124 may be 2 mm higher than the upper surface of the sorting conveyor 122. The sliding surface of the front stage chute 1121 is parallel to the first sliding surface 1123, and the first sliding surface 1123 is lower than the sliding surface of the front stage chute 1121. The height of the first sliding surface 1123 may be, but is not limited to, 2 mm lower than the height of the sliding surface of the front stage chute 1121. The width of the break formed between the front and rear slides 1121, 1122 may be 25 to 30 millimeters, with 28 millimeters being preferred in this embodiment.
It should be noted that when the width of the product is smaller than the width of the fracture, each camera takes a photograph. When the width of the product is larger than the width of the fracture, each camera takes a plurality of pictures.
Since a fracture exists between the front stage chute 1121 and the rear stage chute 1122, and the sliding surface of the front stage chute 1121 is higher than the first sliding surface 1123, when a product slides from the front stage chute 1121 to the rear stage chute 1122, a sound collecting device electrically connected to the processor 113 may be provided at the fracture for detecting the impact sound of the product with the first sliding surface 1123 and transmitting the detected sound information to the processor 113, and the processor 113 may recognize whether the product has internal damage by analyzing the frequency and spectrum of the sound information.
Alternatively, the sound collection device may be, but is not limited to, a microphone.
The light source 114 is mounted to the imaging backplate 1110 and is positioned at a location on the imaging backplate 1110 facing the glidepath 112 so that product can be illuminated by the light source 114 as it passes through the location.
Referring to fig. 4, optionally, the imaging backplate 1110 includes a first surface 1113, a second surface 1114, and a side 1115 enclosed between the first surface 1113 and the second surface 1114, the opening 1116 extending through the first surface 1113 and the second surface 1114. Optionally, according to practical needs, the first surface 1113 is provided with two light sources 114, and the two light sources 114 are located on two sides of the glidepath 112, that is, on two sides of the opening 1116. And, both of the light sources 114 face the fracture so that the product can be irradiated to different surfaces of the product when passing through the fracture, thereby enabling the camera 1112 to capture a clear image. In practice, a control signal may be generated by the first detecting device 115 disposed on the imaging backboard 1110 when a product passes through the imaging backboard 1110, and the control signal may be sent to the processor 113, so that the processor 113 controls the two light sources 114 to be turned on. The on/off of the two light sources 114 can also be directly controlled by the processor 113, which is not limited in this embodiment. Alternatively, the first detecting device 115 may be a fiber sensor.
Optionally, the imaging backboard 1110 is provided with two optical fiber sensors, the two optical fiber sensors are respectively disposed at two ends of the opening 1116, the distance between the two optical fiber sensors is fixed, and the fixed distance can be adjusted according to the actual situation, which is not limited herein. In practice, when two optical fiber sensors detect that a product passes through, a trigger signal is sent to the processor 113, so that the processor 113 calculates the movement speed of the product according to the time difference between the two received trigger signals and the distance between the two optical fiber sensors, and the processor 113 can determine the optimal photographing time.
Optionally, the imaging backboard 1110 is provided with a plurality of the camera brackets 1111, each camera bracket 1111 extending in a different direction. One end of each camera support 1111 remote from the imaging backplate 1110 is provided with one of the cameras 1112, with the lens of each camera 1112 facing the fracture. Through the design, when a product passes through the fracture, the cameras 1112 can shoot the product at multiple angles, so that comprehensive image information is obtained, and the inspection result is more accurate.
Alternatively, the cameras 1112 may be three. Accordingly, there may be three camera holders 1111, and three camera holders 1111 are respectively disposed on the first surface 1113, the second surface 1114 and the side 1115. The camera brackets 1111 disposed on the first and second surfaces 1113, 1114 extend in opposite directions so that the cameras 1112 on the respective camera brackets 1111 can capture images of the front and back sides of the product passing through the fracture. The camera bracket 1111 disposed at the side 1115 extends to the lower side of the fracture, and the lens of the camera 1112 disposed at the camera bracket 1111 faces to the lower side of the fracture, so that the camera 1112 can capture an image of the lower surface of the product passing through the fracture.
Referring to fig. 5 and fig. 6 together, fig. 5 is a schematic diagram illustrating an installation of a sorting rack 121 and a sorting conveyor 122 according to an embodiment of the invention, and fig. 6 is a schematic diagram illustrating an installation of a sorting rack 121 and a sorting conveyor 122 according to an embodiment of the invention.
As shown in fig. 5, the sorting bracket 121 may optionally include a beam 1210 and a plurality of columns 1211, and the beam 1210 includes an upper surface, a lower surface, and a first side and a second side connected between the upper surface and the lower surface. Wherein, the plurality of vertical columns 1211 are vertically disposed on the lower surface of the beam 1210.
As shown in fig. 6, optionally, a sorting sub-rack 128 is further connected to the sorting rack 121, so that the whole sorting mechanism can be supported on the bottom surface. Two ends of the first side face are respectively provided with a pulley 1220, and the axis of the pulley 1220 is perpendicular to the first side face. The sorting conveyor 122 is wound around two of the pulleys 1220, and the surface of the sorting conveyor 122 is flush with the upper surface of the cross member 1210.
Referring to fig. 7 and 8, a plurality of air tap holders 123 are disposed on the upper surface of the cross beam 1210 at intervals, each air tap holder 123 is provided with an air tap 124 and a second detection device 125, and the air tap 124 on each air tap holder 123 is connected to the second detection device 125, so that the second detection device 125 opens the air tap 124 to blow when detecting that a product passes through. Optionally, the second detecting device 125 is electrically connected to the processor 113.
Alternatively, the second detecting device 125 may be a fiber optic transceiver according to practical needs.
The multiple sets of feeding rails 126 are disposed at intervals on the side 1115 of the sorting conveyor 122 away from the first surface 1113 of the sorting bracket 121, and each set of feeding rails 126 includes multiple feeding rails 126 with different lengths. Each feeding rail 126 is opposite to the air outlet of the air tap 124 on one air tap bracket 123, and the upper surface of each feeding rail 126 is not higher than the upper surface of the sorting conveyor 122 and lower than the air outlet of the air tap 124 opposite to the feeding rail 126, so that the products belonging to the gear carried by the feeding rail 126 can be blown onto the feeding rail 126.
Optionally, the sorting mechanism further includes a tray 127, where the tray 127 is rectangular and thin plate, and a side surface of an end portion of each of the feeding rails 126 is connected to one of the trays 127. The length of the feed rails 126 within each set of feed rails 126 is different and the difference in length between two of the feed rails 126 within the same set of feed rails 126 is greater than the width of the tray 127 in the direction of the feed rails 126. Compared with the equal length of all the feeding rails 126, the above arrangement can provide a plurality of trays 127 along the feeding rails 126, saving space.
It should be noted that, the working principle of the product inspection classifier 100 provided in the embodiment of the present invention is that the camera 1112 is utilized to omnidirectionally photograph the product passing through the glide slope 112, so as to obtain the image information of each angle of the product, and send the image information to the processor 113 for processing. In the image recognition process, the processor 113 converts the image pixels into millimeter units to obtain the size of the product, and finds out the product with flaws such as cracks, deformations, unfilled corners, bright spots and the like on the surface through image recognition, and finally classifies the product according to preset rules and image recognition results, so that the processor 113 can set the gear to which the product belongs according to the classification results. The inspected products are transported from the glidepath 112 to the sorting mechanism, and when the second detecting means 125 detects that the products reach the corresponding gear, the corresponding air tap 124 is controlled to blow the products onto the feeding rail 126 transporting the products of that gear.
In summary, the product inspection classifier 100 provided in the embodiment of the invention adopts the camera 1112 to inspect the product, and can automatically classify the product according to the inspection result, thereby greatly improving the speed and accuracy of product inspection. In addition, the product inspection and classification machine 100 can be connected with any automatic production chain, and can perform inspection and classification only by directly feeding materials into the glidepath 112, so that the practicability is high.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The product inspection classifier is characterized by comprising an inspection mechanism and a classification mechanism, wherein the inspection mechanism comprises a glide slope, an imaging device, a processor, a first detection device and a light source, the first detection device and the light source are respectively and electrically connected with the processor, and the classification mechanism comprises a classification bracket, a classification conveyor belt and a plurality of groups of feeding tracks;
the classifying conveyor belt is arranged on the classifying bracket, and the plurality of groups of feeding tracks are arranged on the side edge, far away from the classifying bracket, of the classifying conveyor belt at intervals; the imaging device comprises an imaging backboard, a camera shooting support and a camera electrically connected with the processor, and the glide slope is fixed on the imaging backboard and extends obliquely downwards to the classification conveyor belt; the light source is arranged on the imaging backboard and faces the position of the glidepath located on the imaging backboard; one end of the camera shooting support is connected with the imaging backboard, and the camera facing the lower slideway is positioned at the position of the imaging backboard and is fixed at the other end of the camera shooting support;
the lower slideway comprises a front slideway and a rear slideway, the rear slideway comprises a first sliding surface and a second sliding surface, the first sliding surface is parallel to the sliding surface of the front slideway and is lower than the sliding surface of the front slideway, the second sliding surface is parallel to the horizontal plane and extends to the classifying conveyor belt, an opening is formed in the center of the imaging backboard, one end of the front slideway and one end of the rear slideway respectively extend to the opening and form a fracture, the width of the fracture is smaller than that of the opening, the camera and the light source face towards the fracture, and a sound collecting device electrically connected with the processor is arranged at the fracture;
the first detection device is used for detecting whether a product passes through a part of the imaging backboard, the light source is used for illuminating the product passing through the part of the imaging backboard, the camera is used for acquiring image information of the product and sending the image information to the processor, the processor is used for identifying the image information and classifying the product according to an identification result, so that the classification mechanism pushes the product to a gear to which different types of products belong according to the classification result, the sound collection device is used for detecting the impact sound of the product and the first sliding surface and sending the detected sound information to the processor, and the processor is used for identifying whether the product has internal damage or not by analyzing the frequency and the frequency spectrum of the sound information.
2. The product inspection sorter of claim 1 wherein the sorting stand includes a cross beam and a plurality of posts, the cross beam including an upper surface, a lower surface and a first side connected between the upper surface and the lower surface;
the plurality of upright posts are vertically arranged on the lower surface of the cross beam, and the classifying conveyor belt is arranged on the first side surface of the cross beam; the upper surface interval of crossbeam is provided with a plurality of air cock supports, is provided with the air cock on every air cock support and with the second detection device that the air cock links to each other, second detection device with treater electric connection for detect whether there is the product to pass through in the air cock support department that this second detection device was located.
3. The product inspection sorter of claim 2 wherein each set of feed rails includes a plurality of feed rails of different lengths, each feed rail being opposite the air outlet of an air tap on one of the air tap holders, the upper surface of each feed rail being no higher than the upper surface of the sorting conveyor and lower than the air outlet of the air tap opposite the feed rail.
4. A product inspection sorter as in claim 3 wherein the sorting mechanism further comprises trays, one tray being attached to each of the feed rails, and the feed rails being flush with the upper surface of the trays.
5. The product inspection sorter of claim 4 wherein the difference in length of the feed rails facing the air outlets of the air nozzles on the same set of air nozzle holders is greater than the width of the tray in the direction of the feed rails.
6. The machine of any one of claims 2-5, wherein two pulleys are fixed to two ends of a first side of the cross beam, the two pulleys being perpendicular to the first side, the sorting conveyor belt being wound around the two pulleys, the glidepath extending obliquely downward to the sorting conveyor belt.
7. The product inspection sorter of claim 6 wherein the height of the second sliding surface is greater than the height of the upper surface of the sorting conveyor.
8. The product inspection sorter of claim 7 wherein the plurality of camera supports are disposed on the imaging back plate and extend in different directions, one end of each camera support remote from the imaging back plate being provided with one of the cameras.
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