CN212410467U - Device for detecting foreign matter - Google Patents
Device for detecting foreign matter Download PDFInfo
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- CN212410467U CN212410467U CN202020123854.XU CN202020123854U CN212410467U CN 212410467 U CN212410467 U CN 212410467U CN 202020123854 U CN202020123854 U CN 202020123854U CN 212410467 U CN212410467 U CN 212410467U
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Abstract
The utility model provides a foreign matter detection device, which is used for detecting whether foreign matters exist in transparent or semitransparent liquid in a covered transparent or semitransparent bottle; comprises a conveying device; a plurality of first bottle connecting mechanisms are uniformly arranged on the conveying device along a conveying path; the first bottle connecting mechanism is a bottle connecting mechanism capable of rotating automatically and is connected with the variable-speed driving mechanism; the device for detecting the foreign matters is provided with a plurality of photographing positions along the conveying route, a photographing device is arranged at the photographing positions, and the photographing time of the photographing device is controlled by a control device. The utility model discloses can directly detect transparent or translucent liquid in the transparent or translucent bottle of closing cap wherein whether have the foreign matter on follow-up assembly line after the bottle closing cap, improve detection efficiency.
Description
Technical Field
The utility model relates to a device of foreign matter in visual detection bottle.
Background
At present, to the detection whether there is the foreign matter in the liquid in the bottle, for example to the foreign matter detection in the finished product detection of white spirit, still use artifical visual detection at present, not only at the bottom of the efficiency and easy hourglass inspection.
However, if detected by a computer vision system, refraction and reflection can occur due to the local geometry and pattern of the bottles, which can affect computer recognition and, if attached to the packaging line, can affect the efficiency of the packaging line.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a detect device of foreign matter can detect whether wherein have the foreign matter to the limpid liquid in the transparent bottle of closing cap on the packing assembly line, improves detection efficiency. Therefore, the utility model adopts the following technical scheme:
an apparatus for detecting foreign matter, characterized in that: comprises a conveying device; a plurality of first bottle connecting mechanisms are uniformly arranged on the conveying device along a conveying path; the first bottle connecting mechanism is a bottle connecting mechanism capable of rotating automatically and is connected with the variable-speed driving mechanism;
the device for detecting the foreign matters is provided with a plurality of photographing positions along the conveying route, a photographing device is arranged at the photographing positions, and the photographing time of the photographing device is controlled by a control device.
Further, the conveying device is a conveying device with a circular arc-shaped conveying route; and the conveying device is uniformly provided with a plurality of first bottle connecting mechanisms along the circumference.
Furthermore, the first bottle connecting mechanism is a lifting mechanism, and a plurality of second bottle connecting mechanisms are uniformly arranged on the conveying device along a conveying path; the first bottle connecting mechanisms correspond to the second bottle connecting mechanisms one by one, and the second bottle connecting mechanisms are used for connecting and conveying bottles before the bottles enter the conveying device and rotate and conveying the bottles before the bottles are output after being shot.
Furthermore, the first bottle connecting mechanism is a lifting mechanism, and a plurality of second bottle connecting mechanisms are uniformly arranged on the conveying device along the circumference; the first bottle connecting mechanisms correspond to the second bottle connecting mechanisms one by one, and the second bottle connecting mechanisms are used for connecting and conveying bottles before the bottles enter the conveying device and rotate and conveying the bottles before the bottles are output after being shot.
Further, the first bottle conveying mechanism takes the bottles on the second bottle connecting mechanism by descending and gives the bottles to the second bottle mechanism; the first bottle conveying mechanism is connected with the variable-speed driving mechanism by rising to a high position after taking the bottles.
Furthermore, the device for detecting the foreign matters is also provided with a turnover device in front of the conveying device and used for turning over the bottles back and forth, the turnover device is provided with a plurality of third bottle connecting mechanisms used for being connected with the bottles, and the turnover device is connected with the conveying device through a bottle transfer mechanism.
Furthermore, a distance device for the front-back spacing of the bottles is arranged in front of the conveying device.
Furthermore, a distance device for the front-back distance of the bottles is arranged in front of the turnover device.
The above further technical schemes can also be combined for use.
Because adopt the technical scheme of the utility model, can directly detect transparent or translucent liquid in the transparent or translucent bottle of closing cap wherein whether have the foreign matter on follow-up assembly line after the bottle closing cap, improve detection efficiency.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
Fig. 2 is a schematic view of a combination of the conveying device and the shooting device in the embodiment of the present invention.
Fig. 3 is a schematic view of a combination of the first bottle connecting mechanism and the camera in the embodiment of the present invention.
Detailed Description
Reference is made to the accompanying drawings. The utility model provides a detect foreign matter device is used for detecting the method of a detection foreign matter of closing cap for whether have the foreign matter in transparent or the translucent liquid in the transparent or the translucent bottle of detecting the closing cap, for example to the foreign matter detection in the bottled white spirit of glass. The foreign matter detection device of the utility model comprises a conveying device 100; the conveying device 100 is connected to the packaging assembly line through one-stage or multi-stage switching conveying devices, and the capped bottles 200 to be detected are automatically sent into the conveying device 100, wherein the switching conveying device can also have a spacing function, a turning function and the like, which will be described in detail in the following.
The conveying device 100 is uniformly provided with a plurality of first bottle connecting mechanisms 1 along a conveying path; the first bottle connecting mechanism 1 is a bottle connecting mechanism capable of rotating automatically and is connected with a variable-speed driving mechanism; the foreign matter detection device is provided with a plurality of photographing positions along the conveying route, a photographing device 3 is arranged at the photographing positions, and the photographing time of the photographing device is controlled by a control device.
The conveying device 100 adopts a conveying device with a circular arc-shaped conveying route; the conveying device is uniformly provided with a plurality of first bottle connecting mechanisms 1 along the circumference. The first bottle connecting mechanism 1 may employ a grippable jaw or a suction cup. The connecting frame of the first bottle connecting mechanism 1 is provided with a rotating shaft 10, and the rotating shaft 10 is connected with a gear 21 or other connecting structures and is connected with a variable-speed driving mechanism. The variable speed driving mechanism adopts the motor 2 as power and is connected with the first bottle connecting mechanism 1 through the gear 22 and the gear 21 or through other power connecting structures. The motor 2 can drive the first bottle connecting mechanism 1 to rotate in a single direction or rotate in a positive and negative direction, so that liquid in the bottle is shaken by mechanical operation, foreign matters are prevented from sinking to the bottom and being difficult to shoot, and photos which are not influenced by reflection and refraction (or are less influenced) can be shot and are easy to be correctly identified by a computer. The variable speed driving mechanism can be driven at variable speed, so that the first bottle connecting mechanism 1 can rotate at a higher speed before shooting, and the rotation speed can be reduced even to zero when shooting an area, thereby facilitating the shooting of pictures which can be recognized by a computer.
Another purpose of the rotation of the first bottle connection mechanism 1 is to facilitate that the plurality of cameras 3 can photograph the bottles from different angles in order to overcome the problem of refraction and reflection of light locally on the bottles, and optimally, the bottles 200 rotate one turn or nearly one turn from the initial shooting position to the last shooting position. The first coupling mechanism 1 and the bottle coupled thereto have a revolution and rotation movement, so that different photographing gaps can be provided by changing the rotation direction at the same rotation speed.
The first bottle connecting device 1 can be used directly as a bottle connecting device for the entire conveying path from the bottle 200 to the conveying device 100. A plurality of second bottle connecting mechanisms 4 can be additionally arranged on the conveying device 100 along a circumferential conveying path, wherein the first bottle connecting mechanism 1 is a lifting mechanism; the first bottle connecting mechanisms 1 correspond to the second bottle connecting mechanisms 4 one by one, the second bottle connecting mechanisms 4 are arranged below the first bottle connecting mechanisms 1, and the second bottle connecting mechanisms 4 are used for connecting and conveying bottles 200 before entering the input position 101 of the conveying device 100 and before rotation and conveying bottles before shooting and outputting. The second bottle connecting mechanism 4 may be a jaw or detent. When the bottles 200 enter the conveying device 100, the bottles are received by the second bottle connecting mechanism 4, before the bottles are rotated, the first bottle conveying mechanism 1 is descended to take the bottles 200 on the second bottle connecting mechanism 4, then the first bottle conveying mechanism 1 is ascended, the bottles 200 leave the second bottle connecting mechanism 4, and the first bottle conveying mechanism 1 is connected with a variable-speed driving mechanism, so that the bottles can be driven to rotate. After the end of the recording, the first bottle conveyor 1 transfers the bottles 200 to the second bottle conveyor by lowering, and then the second bottle conveyor transfers the bottles 200 to the next conveyor 300 at the output position 102 of the conveyor 100.
The lifting of the first bottle connecting mechanism 1 can be controlled by the cam 101, the cam 101 is an end face cam, the upper part of the first bottle connecting mechanism 1 is arranged along the circumferential conveying direction, the first bottle connecting mechanism 1 is provided with a connecting structure 12, the connecting structure 12 is provided with a rolling component 11 supported on the end face of the cam 101, and the cam 101 supports each first bottle connecting mechanism 1 and controls the lifting of each first bottle connecting mechanism 1 through the circular operation of the rolling component 11 on the end face of the cam.
The rotating shaft 10 and the connecting structure 12 are rotatably connected and can be lifted and lowered together. The shaft 10 is connected to a gear 21 on the variable speed drive through a keyway in the shaft. The mounting structure 23 of the variable speed drive mechanism is connected with the upper turntable 102 in the conveying device 100, and the second bottle connecting mechanism 4 is connected with the lower turntable 103 in the conveying device 100.
The number of the shooting devices 3 is generally more than 3, and can be set to be about 10, and different shooting devices shoot different angle positions of the bottle so as to shoot photos which are not influenced by reflection and refraction (or are less influenced) and can be easily and correctly identified and screened by a computer. In this embodiment, 12 cameras are used, and the bottles rotate one circle from the initial shooting position to the position away from the last shooting position, so that at least two images without bottle patterns can be shot.
The imaging device 3 is generally disposed at an equal distance and provided with the imaging auxiliary light source 31, the imaging device 3 and the auxiliary light source 31 are disposed on a bracket 34, the photoelectric switch 33 and the reflection plate 32 thereof are mounted on the bracket 35, and the bracket 35 is fixed on the bracket 34. The shooting device 3 and the auxiliary light source 31 are respectively arranged at two sides of the bottle passing route, and the shooting device 3 shoots at the outer side from the outer side to the inner side to form a relatively closed shooting environment. The auxiliary light source 31 is a combined plate-shaped light source, is arranged on the inner side of the relatively closed shooting environment, and is used for polishing the product corresponding to the bottle body angle to achieve a stable shooting environment. The light source is a white light source. The imaging light sources 31 may be arranged in the imaging device 3 one-to-one, or in a one-to-many manner. For the control of the shooting time, the photoelectric switch 33 can be used as a sensor, the photoelectric switch is connected with the control device, when the photoelectric switch senses that the bottle passes through, a signal is sent to the control device, the control device controls the shooting device to shoot, the photoelectric switch can be configured on the shooting device 3 one by one, the photoelectric switch can also be arranged at the starting position, and the control device controls the shooting time of a plurality of shooting devices through delay control.
The device for detecting the foreign matters is also provided with a turnover device 400 in front of the conveying device 100, the turnover device 400 is not only used for transferring and conveying the bottles 200, but also used for turning the bottles 200 back and forth so that the foreign matters at the bottom of the bottle float in the liquid and the subsequent autorotation effect can be fully exerted, the turnover device 400 is provided with a plurality of third bottle connecting mechanisms 401 for being connected with the bottles 200, the third bottle connecting mechanisms 401 adopt turnover bottle clamping mechanisms, the conveying route of the turnover device 400 can also be in a circular arc shape, the third bottle connecting mechanisms 401 are equidistantly arranged along the circumferential route, and the turnover device 400 is connected with the conveying device 100 through a bottle transfer mechanism 500. The bottle transfer mechanism 500 may employ a turntable with a bottle detent.
The utility model provides a detect foreign matter device sets up distance device 600 of interval around the bottle in access arrangement department, and distance device 600 can adopt screw conveyor, when bottle 200 is carried in the switching, presses the screw thread interval distance to the interval of bottle 200, sets up switching conveying mechanism 700 between distance device 600 and the turning device 400. The bottle transfer mechanism 700 may employ a turntable with a bottle detent.
The rejecting device 801 can be arranged on the output device 800 behind the conveying device 100, the rejecting device 801 is connected with the control device, the control device can calculate the time when the defective products reach the rejecting mechanism 801 according to the shooting time, the moving distance and the moving speed of the defective products so as to control the rejecting device 801 to perform corresponding rejecting actions at corresponding time, reject the defective products out of the output device 800, and distribute the defective products to another production line. The rejecting mechanism can adopt executing mechanisms such as mechanical grippers, push rods and the like. The output device 800 and the conveying device 100 can be connected by a bottle transfer mechanism, namely, the conveying device 300 at the next stage can adopt a turntable with a bottle clamping position.
When the transport device 100 and the reversing device 400 are linear transport devices, the operations of reversing, rotating, and shooting can be similarly performed.
The utility model discloses whether to have the testing process of foreign matter in the transparent or translucent liquid in the transparent or translucent bottle of closing cap as follows:
(1) conveying the bottles by a conveying machine in sequence at equal intervals;
(2) the bottle autorotation is carried out on the conveying machine, the speed is reduced before the bottle enters the shooting position, the bottle is conveyed by the conveying machine to sequentially pass through a plurality of shooting positions, and shooting at a plurality of angles is carried out along the circumferential direction of the bottle;
the visual system processes the shot pictures, judges whether foreign matters exist in the liquid in the bottle in the pictures or not, outputs a detection result, and controls the bottle rejecting device to act to reject the defective products if the defective products exist.
Before entering the conveying machine, the bottles are subjected to equidistant treatment and then enter the overturning device, and after being overturned and overturned, the bottles rotate on the conveying machine.
For pictures taken by the shooting devices for the same bottle, the processing steps of the vision system arranged in the shooting devices comprise:
1) performing primary processing on the image, calculating the average value of a single image, and performing noise elimination on the image according to the average value;
2) performing threshold judgment on the single image, performing threshold segmentation on the image, for example, removing the graph which is obviously a bottle accessory in the picture, such as the bottle label on a wine bottle and the like, so that the area needing to be judged is conveniently found, and the subsequent data volume needing to be processed is reduced;
3) the image obtained by segmentation is screened for the first time, noise interference and liquid bubble interference are removed, the interference can be removed by setting the numerical value or the form of the size range of some bubbles in advance and comparing the numerical value or the form, for example, common bubbles are smaller than foreign matters in liquid, and for example, the bubbles are generally circular. The noise is a dirty point on the surface of the bottle, which is often smaller than foreign matters in the liquid;
on the basis, an alternative region for foreign matter comparison is obtained, whether a suspected object meeting the screening condition exists in the alternative region is judged, parameters which are set in advance can be used as judgment threshold values, such as area, gray value, circle radius, circle diameter and the like, as reference values to judge whether the object is a foreign matter, and the threshold values can be continuously optimized through computer learning.
4) Obtaining a judgment result of the single image, and preliminarily judging whether the shot object is a good product or a defective product according to the single image;
and repeating the steps 1) to 4) to obtain the judgment result of each image of the same bottle.
The control device is in communication connection with the visual system through the communication device, and issues shooting instructions and receives data. If more than 2 images are judged to be good, the shot object is judged to be good, otherwise, the shot object is judged to be defective.
The vision system analyzes whether foreign matters and impurities exist in the shot picture in the process of rotating 360 degrees, the single-camera image is processed, and the logic judgment output result is output after the 6-12 cameras are processed. If the bottles detected by the 6-12 cameras are good, the bottles meet the requirements, otherwise, the bottles are judged to be defective, the result information of the bottles is sent to a bottle kicking system, and when the bottles reach a bottle kicking mechanism according to calculation, bad bottles are distributed to another production line.
The above description is only for the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art is in the field of the present invention, and all the changes or modifications are covered in the protection scope of the present invention.
Claims (8)
1. An apparatus for detecting foreign matter, characterized in that: comprises a conveying device; a plurality of first bottle connecting mechanisms are uniformly arranged on the conveying device along a conveying path; the first bottle connecting mechanism is a bottle connecting mechanism capable of rotating automatically and is connected with the variable-speed driving mechanism;
the device for detecting the foreign matters is provided with a plurality of photographing positions along the conveying route, a photographing device is arranged at the photographing positions, and the photographing time of the photographing device is controlled by a control device.
2. A device for detecting a foreign object as set forth in claim 1, wherein: the conveying device is a conveying device with a circular arc-shaped conveying route; and the conveying device is uniformly provided with a plurality of first bottle connecting mechanisms along the circumference.
3. A device for detecting a foreign object as set forth in claim 1, wherein: the first bottle connecting mechanism is a lifting mechanism, and a plurality of second bottle connecting mechanisms are uniformly arranged on the conveying device along a conveying path; the first bottle connecting mechanisms correspond to the second bottle connecting mechanisms one by one, and the second bottle connecting mechanisms are used for connecting and conveying bottles before the bottles enter the conveying device and rotate and conveying the bottles before the bottles are output after being shot.
4. A device for detecting a foreign object as set forth in claim 2, wherein: the first bottle connecting mechanism is a lifting mechanism, and a plurality of second bottle connecting mechanisms are uniformly arranged on the conveying device along the circumference; the first bottle connecting mechanisms correspond to the second bottle connecting mechanisms one by one, and the second bottle connecting mechanisms are used for connecting and conveying bottles before the bottles enter the conveying device and rotate and conveying the bottles before the bottles are output after being shot.
5. A device for detecting a foreign object as set forth in claim 3 or 4, wherein: the first bottle conveying mechanism takes the bottles on the second bottle connecting mechanism by descending and gives the bottles to the second bottle mechanism; the first bottle conveying mechanism ascends to a high position after taking the bottles.
6. A device for detecting a foreign object as set forth in claim 1, wherein: the device for detecting foreign matters is also provided with a turnover device in front of the conveying device and used for turning over the bottles back and forth, the turnover device is provided with a plurality of third bottle connecting mechanisms used for being connected with the bottles, and the turnover device is connected with the conveying device through a bottle transfer mechanism.
7. A device for detecting a foreign object as set forth in claim 1, wherein: a distance device for arranging the bottles at a front-back distance is arranged in front of the conveying device.
8. A device for detecting a foreign object as set forth in claim 6, wherein: a distance device for arranging the front and the back of the bottle at a certain distance is arranged in front of the turnover device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020123854.XU CN212410467U (en) | 2020-01-19 | 2020-01-19 | Device for detecting foreign matter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020123854.XU CN212410467U (en) | 2020-01-19 | 2020-01-19 | Device for detecting foreign matter |
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| CN212410467U true CN212410467U (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041417A (en) * | 2021-03-09 | 2022-09-13 | 广州市洁科不锈钢设备有限公司 | Bottle blank CCD defect detection method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115041417A (en) * | 2021-03-09 | 2022-09-13 | 广州市洁科不锈钢设备有限公司 | Bottle blank CCD defect detection method |
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