CN216208660U - Plastic bottle body defect detection device - Google Patents
Plastic bottle body defect detection device Download PDFInfo
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- CN216208660U CN216208660U CN202122347385.7U CN202122347385U CN216208660U CN 216208660 U CN216208660 U CN 216208660U CN 202122347385 U CN202122347385 U CN 202122347385U CN 216208660 U CN216208660 U CN 216208660U
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Abstract
The utility model discloses a plastic bottle body defect detection device, which comprises a workbench, a conveying belt, a remover and a detection system, and compared with the traditional detection method, the detection device has the advantages of compact space, low overall cost, capability of being better installed and integrated into a workshop for use, no need of reserving a large position, capability of carrying out omnibearing detection on products, automatic detection and removal of defective products under the control of the system, and high degree of mechanization.
Description
Technical Field
The utility model relates to a filling container detection device, in particular to a plastic bottle body defect detection device.
Background
Transparent or non-transparent plastic packaging products are more and more popular with consumers at present, and are widely applied to the dairy product industry, the daily article washing industry, the chemical packaging industry and the engine oil and lubricating oil product packaging industry. Due to reasons such as production process and the like, abnormal defects such as black spots, foreign matters, impurities, thin walls, accumulated materials, piled materials, holes, burrs and the like often occur on the bottle body, the quality problems not only affect the appearance of the product, but also even cause the pollution of liquid in the bottle to affect the quality of the product, and meanwhile, the defects of the bottle body are an important aspect for measuring the quality of the product and can affect the sense organ and the purchasing desire of consumers on the product, so that the appearance detection of the packaging bottle by the production enterprises is particularly important. For slow production lines, some manual inspection methods are adopted, the manual inspection method is visual, but a large blind area exists, the traditional manual inspection is gradually eliminated along with the improvement of filling production efficiency, and the detection of the bottle body defects by adopting mechanical equipment becomes a necessary trend of development. At present, the detection of the plastic bottle body is usually realized by adopting a common light source, the bottle body can be detected for 360 degrees only by using eight cameras, eight light sources and three stations, the detection cost is higher, and the more stations, the longer the equipment is, the further improvement of the equipment cost can be caused.
Disclosure of Invention
The utility model aims to solve the problems in the prior art, and provides a plastic bottle body defect detection device which can effectively improve the body detection efficiency and the detection quality of transparent or non-transparent plastic empty bottles, can complete body detection by adopting four cameras and four light sources, and can reduce the detection cost.
The utility model provides a plastic bottle body defect detecting device, includes workstation, conveyer belt, flush trimmer and detecting system, its characterized in that: the workbench is provided with a first camera, a second camera, a third camera and a fourth camera, the first camera and the second camera are arranged on one side of the conveying belt, the third camera and the fourth camera are arranged on the other side of the conveying belt, and every two cameras are placed at an included angle of 90 degrees; a first backlight source, a second backlight source, a third backlight source and a fourth backlight source are respectively arranged in front of the first camera, the second camera, the third camera and the fourth camera, the first backlight source plane is vertically distributed with the first camera lens, the second backlight source plane is vertically distributed with the second camera lens, the third backlight source plane is vertically distributed with the third camera lens, and the fourth backlight source plane is vertically distributed with the fourth camera lens;
the detection system comprises a sensor and a controller which are arranged on the workbench; the sensor is arranged on one side of the conveying belt, the sensor is over against the intersection point of the axes of the first camera and the third camera, and the sensor is used for collecting the position information of the product; the controller is in signal connection with the sensor, the first camera, the second camera, the third camera, the fourth camera, the first backlight source, the second backlight source, the third backlight source and the fourth backlight source, the controller comprises an information receiving module, a light source control module, a camera control module and an information processing module, the information receiving module is used for receiving a product position electric signal sent by the sensor, the light source control module is used for asynchronously controlling the on and off of the first backlight source, the second backlight source, the third backlight source and the fourth backlight source according to information of the information receiving module, and the camera control module is triggered by the information of the light source control module and is used for asynchronously controlling the shooting time points of the first camera, the second camera, the third camera and the fourth camera; the information processing module is used for comparing and judging whether the product picture information shot by the first camera, the second camera, the third camera and the fourth camera meets the set requirement or not;
the remover is arranged at the side edge of the tail end of the conveying belt, is electrically connected with the controller and is used for receiving the comparison result information sent by the controller and performing the action of reserving or removing the product according to the information.
Preferably, the backlight source comprises an opening backlight source and a splicing backlight source.
Further preferably, the aperture backlight source is provided with an aperture at a specific position of the backlight source, and the aperture and the camera lens are on the same axis.
Preferably, the spliced backlight source comprises two backlight sources, and a gap with a width slightly larger than the diameter of the camera lens is left at the splicing position of the two backlight sources.
Preferably, the controller is a computer module.
Preferably, the camera is spaced a distance from the backlight.
Preferably, a plurality of plastic bottles to be detected are placed on the conveying belt, and a certain distance is reserved between every two plastic bottles.
Further preferably, the distance between the plastic bottles is 1/2-1/5 of the distance between the inductor and the ejector.
The utility model has the beneficial effects that: the utility model respectively controls the cameras and the light sources distributed at two sides of the conveying belt by adopting the camera control module and the light source control module of the controller, can achieve the aim of asynchronous shooting by using the four light sources and the four cameras, and completes three times of asynchronous shooting on the premise of ensuring the minimum movement of products. And finishing the 360-degree detection of the product. Compared with the traditional method of adopting eight cameras, eight light sources and three stations to realize 360-degree detection of the product, the detection equipment has the advantages of compact space and low overall cost, can be better installed and integrated into a workshop for use, does not need to reserve a large position, and saves the cost. The information processing module is arranged, the live images of products shot by the camera can be processed in an informationized mode, the controller is electrically connected with the remover, the plastic empty bottles with the quality problems of appearance and the like are subjected to machine removal, the whole set of device is mechanical, manual operation is not needed, and the production line efficiency is greatly improved.
Drawings
Fig. 1 is a schematic structural diagram of a defect detection device for a plastic bottle body according to the present invention.
In the figure: 1-workbench, 2-conveyer belt, 3-controller, 4-sensor, 5-remover, 6-product, 701-first camera, 702-second camera, 703-third camera, 704-fourth camera, 801-first backlight, 802-second backlight, 803-third backlight, 804-fourth backlight.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. The described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A defect detection device for a plastic bottle body comprises a workbench 1, a conveying belt 2, a remover 5 and a detection system. The workbench 1 is provided with a first camera 701, a second camera 702, a third camera 703 and a fourth camera 704, the first camera 701 and the second camera 702 are arranged on one side of the conveying belt, the third camera 703 and the fourth camera 704 are arranged on the other side of the conveying belt, the first camera 701 and the second camera 702 are arranged at an included angle of 90 degrees, the first camera 701 and the third camera 703 are arranged in parallel, and the second camera 702 and the fourth camera 704 are arranged in parallel. A first backlight source 801, a second light backlight source 802, a third backlight source 803 and a fourth backlight source 804 are respectively arranged in front of the first camera 701, the second camera 702, the third camera 703 and the fourth camera 704, wherein the plane of the first backlight source 801 is vertically distributed with the lens of the first camera 701, the plane of the second backlight source 802 is vertically distributed with the lens of the second camera 702, the plane of the third backlight source 803 is vertically distributed with the lens of the third camera 703, and the plane of the fourth backlight source 804 is vertically distributed with the lens of the fourth camera 704.
The detection system comprises a sensor 4 and a controller 3 which are arranged on the workbench, the sensor 4 is arranged on one side of the conveyer belt 2, and the sensor 4 is opposite to the intersection position of the axes of the lenses of the first camera 701 and the third camera 703. The sensor 4 is used for collecting product position information and converting the information into an electric signal; the controller 3 signals the sensor 4, the first camera 701, the second camera 702, the third camera 703, the fourth camera 704, the first backlight 801, the second backlight 802, the third backlight 803, and the fourth backlight 804 to establish signal connections, preferably wireless signal connections, such as WiFi, bluetooth mode, or 4G/5G connections. The controller 3 includes an information receiving module, a light source control module, a camera control module and an information processing module, the information receiving module is used for receiving the product position electrical signal sent by the sensor, the light source control module is used for controlling the on and off of the first backlight source 801, the second backlight source 802, the third backlight source 803 and the fourth backlight source 804 according to the information of the information receiving module, the light source control module is triggered by the signal transmitted by the information receiving module, and controls the light emitting time and the light emitting sequence of the first backlight source, the second backlight source, the third backlight source and the fourth backlight source in an asynchronous control mode. The camera control module is triggered by the information of the light source control module and is used for controlling the shooting time points of the first camera 701, the second camera 702, the third camera 703 and the fourth camera 704, the camera control module also controls the shooting time and the shooting sequence of the first camera, the second camera, the third camera and the fourth camera in an asynchronous control mode, and the light source control module and the camera control module are triggered and associated by a specific circuit structure. The information processing module is used for comparing and judging whether the product picture information shot by the first camera, the second camera, the third camera and the fourth camera meets the set requirement or not; the remover 5 is arranged at the side edge of the tail end of the conveying belt, is electrically connected with the controller 3, and is used for receiving the comparison result information sent by the controller and performing the action of reserving or removing the product according to the information. Preferably, a high-speed industrial camera with a frame rate of 500 ten thousand pixels and 79 can be used as a shooting tool, so that the product can be ensured to complete image shooting in the field of view of the camera and in the effective light-emitting area of the light source.
Preferably, the backlight source comprises an opening backlight source and a splicing backlight source.
Further preferably, the aperture backlight source is provided with an aperture at a specific position of the backlight source, and the aperture and the camera lens are on the same axis. According to the actual situation, the opening backlight source can also be opened with a plurality of holes, such as the situation that multi-camera shooting imaging is needed. The purpose of opening a hole on the backlight source is mainly to facilitate camera imaging, and the size of the hole can be designed according to actual requirements, so that the camera imaging integrity is taken as a reference.
Preferably, the spliced backlight source comprises two backlight sources, and a gap with a width slightly larger than the diameter of the camera lens is left at the splicing position of the two backlight sources. Similarly, a plurality of backlight sources can be spliced, a gap left between the backlight sources is used for camera imaging, the width of the gap is designed according to actual conditions by taking camera imaging integrity as a reference.
Preferably, the controller is a computer module. The controller is controlled by the computer module, has high expandability, is suitable for wide application occasions, has universality and sustainability, and is easy to replace and upgrade.
Preferably, the camera is spaced a distance from the backlight. The spacing distance between the cameras and the backlight source is mainly adjusted according to the shape and the volume of the plastic empty bottle to be detected, and the four cameras can shoot the bottle body to be detected into a picture in all directions.
Preferably, a plurality of plastic bottles to be detected are placed on the conveying belt, and a certain distance is reserved between every two plastic bottles. The spacing distance between the bottles is determined primarily by the efficiency and accuracy of the operation of the device.
Further preferably, the distance between the plastic bottles is 1/2-1/5 of the distance between the sensor and the ejector. Through setting up the distance between two liang of plastic bottles, can guarantee going on smoothly of detection flow, should not be too close by the distance between the plastic bottle that awaits measuring, otherwise the error that machine detection is lost appears easily, and the efficiency that also can reduce the detection is too big apart from, the wasting of resources. Therefore, the detection efficiency can be ensured without influencing the detection accuracy by setting the proper distance according to the actual situation.
The working process of the plastic bottle body defect detection device is as follows:
the detection device needs to carry out three-time asynchronous image shooting when completing one-time detection.
First the product to be detected reaches the detection area and the sensor 4 is sent to the controller 3 via a signal connection.
The first step is as follows: the controller information receiving module receives information to trigger the light source control module to enable the first backlight source 801, the second backlight source 802, the third backlight source 803 and the fourth backlight source 804 to synchronously shine, and the camera control module is triggered by the light source control module to enable the first camera 701, the second camera 702, the third camera 703 and the fourth camera 704 to synchronously shoot images while shining light. The step is mainly used for detecting whether the product has the defects of black spots, foreign matters, impurities and the like, and realizing 360-degree bright field detection of the product.
The second step is that: the light source control module adjusts to make the third backlight source 803 and the fourth backlight source 804 synchronously light, and the camera control module is triggered to make the first camera 701 and the second camera 702 synchronously shoot images while the light sources light. The product imaging is shot by the vision system in a dark field backlight mode through the steps, and the method is mainly used for detecting defects of thin walls, accumulated materials, piled materials, holes, fins and the like and detecting one surface of the product by 180 degrees.
The third step: the light source control module adjusts to make the first backlight source 801 and the second backlight source 802 synchronously bright, and the camera control module is triggered to make the third camera 703 and the fourth camera 704 synchronously shoot while the light source is bright. The operation is the same as the second step, so that the vision system takes the dark field backlight mode for shooting and imaging, and 180-degree detection is carried out on the other surface of the product.
The three-time image shooting is processed by the information processing module, the information processing module transmits the comparison result to the remover 5 through electric connection, if the product has quality problems, when the product is transmitted to the position of the remover, the remover 5 receives the information instruction and removes the product with the quality problems, and the product with the quality being over-qualified goes to the next process along with the conveying belt.
The plastic bottle body defect detection device designed by the utility model reduces the number of cameras and light sources, reduces 3 detection stations to which common detection belongs to one detection station, has compact layout of detection equipment, and improves the space utilization rate. The utility model also designs a set of detection system which comprises a sensor and a controller, wherein the detection system triggers each module to operate through signal connection, asynchronously controls the light source and the camera, completes 360-degree detection of products, and detects possible different quality problems under the condition of different light intensity. The camera is used for imaging, the system is automatically compared, signal connection is established with the remover in the device to remove the defective products, the whole detection process is automatically controlled, and the working efficiency and the accuracy are effectively improved.
The above embodiments are illustrative of the present invention, and not restrictive, and many changes, modifications, substitutions and variations may be made in the embodiments without departing from the spirit and scope of the utility model, and other variations and combinations of features of the utility model shall be considered as within the scope of the present invention.
Claims (8)
1. The utility model provides a plastic bottle body defect detecting device, includes workstation, conveyer belt, flush trimmer and detecting system, its characterized in that: the workbench is provided with a first camera, a second camera, a third camera and a fourth camera, the first camera and the second camera are arranged on one side of the conveying belt, the third camera and the fourth camera are arranged on the other side of the conveying belt, and every two cameras are placed at an included angle of 90 degrees; a first backlight source, a second backlight source, a third backlight source and a fourth backlight source are respectively arranged in front of the first camera, the second camera, the third camera and the fourth camera, the first backlight source plane is vertically distributed with the first camera lens, the second backlight source plane is vertically distributed with the second camera lens, the third backlight source plane is vertically distributed with the third camera lens, and the fourth backlight source plane is vertically distributed with the fourth camera lens;
the detection system comprises a sensor and a controller which are arranged on the workbench; the sensor is arranged on one side of the conveying belt, the sensor is over against the intersection point of the axes of the first camera and the third camera, and the sensor is used for collecting the position information of the product; the controller is in signal connection with the sensor, the first camera, the second camera, the third camera, the fourth camera, the first backlight source, the second backlight source, the third backlight source and the fourth backlight source, the controller comprises an information receiving module, a light source control module, a camera control module and an information processing module, the information receiving module is used for receiving a product position electric signal sent by the sensor, the light source control module is used for asynchronously controlling the on and off of the first backlight source, the second backlight source, the third backlight source and the fourth backlight source according to information of the information receiving module, and the camera control module is triggered by the information of the light source control module and is used for asynchronously controlling the shooting time points of the first camera, the second camera, the third camera and the fourth camera; the information processing module is used for comparing and judging whether the product picture information shot by the first camera, the second camera, the third camera and the fourth camera meets the set requirement or not;
the remover is arranged at the side edge of the tail end of the conveying belt, is electrically connected with the controller and is used for receiving the comparison result information sent by the controller and performing the action of reserving or removing the product according to the comparison result information.
2. The plastic bottle body defect detection device of claim 1, wherein: the backlight source is provided with an opening backlight source and a splicing backlight source.
3. The plastic bottle body defect detecting device of claim 2, wherein: the opening backlight source is characterized in that an opening is arranged at a specific position of the backlight source, and the opening and the camera lens are positioned on the same axis.
4. The plastic bottle body defect detecting device of claim 2, wherein: the spliced backlight source is composed of two backlight sources, and a gap with the width slightly larger than the diameter of the camera lens is reserved at the splicing position of the two backlight sources.
5. The plastic bottle body defect detection device of claim 1, wherein: the controller is a computer module.
6. The plastic bottle body defect detection device of claim 1, wherein: the camera is spaced a distance from the backlight.
7. The plastic bottle body defect detection device of claim 1, wherein: a plurality of plastic bottles to be detected are placed on the conveying belt, and a certain distance is reserved between every two plastic bottles.
8. The plastic bottle body defect detecting device of claim 7, wherein: the distance between the plastic bottles is 1/2-1/5 of the distance between the sensor and the ejector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122347385.7U CN216208660U (en) | 2021-09-27 | 2021-09-27 | Plastic bottle body defect detection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122347385.7U CN216208660U (en) | 2021-09-27 | 2021-09-27 | Plastic bottle body defect detection device |
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| CN216208660U true CN216208660U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511093A (en) * | 2023-03-02 | 2023-08-01 | 浙江金至医药包装有限公司 | Method for removing injection-blow plastic bottles with black spots |
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2021
- 2021-09-27 CN CN202122347385.7U patent/CN216208660U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116511093A (en) * | 2023-03-02 | 2023-08-01 | 浙江金至医药包装有限公司 | Method for removing injection-blow plastic bottles with black spots |
| CN116511093B (en) * | 2023-03-02 | 2023-11-17 | 浙江金至医药包装有限公司 | Method for removing injection-blow plastic bottles with black spots |
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