阅读说明：本技术 封装品质检测方法及封装品质检测设备 (Package quality detection method and package quality detection device ) 是由 郭凌宇 杨小冬 邓诗语 郑树奎 于 2020-05-19 设计创作，主要内容包括：本发明公开了一种封装品质检测方法,适于对连袋小包进行缺陷检测,其包括如下步骤：获取当前连袋小包的待检测区域的实时图像；调整待检测区域的实时图像焦距,直至待检测区域的实时图像轮廓分明、边缘清晰；分析获取待检测区域的实时图像的横封区域、侧封区域、小包区域,检测所述横封区域、侧封区域、小包区域的缺陷点和缺陷区域,并生成检测结果；本发明既能够对连袋小包的多种缺陷进行高精度的实时有效检测,避免因人工检测迟滞而造成资源浪费,有效节约生产成本,有效简化检测流程及提升准确率,又能够检测出厚度间距法无法检测的缺陷,并大大降低因漏检而造成的污染；本发明还公开了一种封装品质检测设备。(The invention discloses a packaging quality detection method, which is suitable for detecting defects of a connected bag and a small bag, and comprises the following steps: acquiring a real-time image of a to-be-detected area of a current bag-connected small bag; adjusting the real-time image focal length of the area to be detected until the real-time image of the area to be detected is clear in outline and clear in edge; analyzing and acquiring a transverse sealing area, a side sealing area and a small packet area of a real-time image of an area to be detected, detecting defect points and defect areas of the transverse sealing area, the side sealing area and the small packet area, and generating a detection result; the invention can effectively detect various defects of the connected bags in real time with high precision, avoid resource waste caused by manual detection delay, effectively save production cost, effectively simplify detection flow and improve accuracy, can detect the defect which cannot be detected by a thickness spacing method, and greatly reduce pollution caused by missed detection; the invention also discloses a packaging quality detection device.)

1. A packaging quality detection method is suitable for detecting defects of a connected bag and a small bag, and is characterized by comprising the following steps:

acquiring a real-time image of a to-be-detected area of a current bag-connected small bag;

adjusting the real-time image focal length of the area to be detected until the real-time image of the area to be detected is clear in outline and clear in edge;

analyzing and acquiring a transverse sealing area, a side sealing area and a small packet area of a real-time image of an area to be detected, detecting defect points and defect areas of the transverse sealing area, the side sealing area and the small packet area, and generating a detection result.

2. The packaging quality inspection method according to claim 1, wherein the step of obtaining a real-time image of the area to be inspected of the currently-connected packet further comprises the following steps:

and emitting a combined light beam to the area to be detected, and adjusting the brightness of the combined light beam until the real-time image of the area to be detected is clear in outline and clear in edge.

3. The packaging quality inspection method according to claim 1, wherein the acquiring of the real-time image of the area to be inspected of the currently-connected packet specifically comprises the following steps:

and detecting the transverse seal of the connected small bag, and if the transverse seal of the connected small bag is detected, acquiring a real-time image of the current region to be detected of the connected small bag.

4. The package quality inspection method according to claim 1, wherein the analyzing obtains a horizontal seal area, a side seal area, and a small package area of the real-time image of the area to be inspected, detects defect points and defect areas of the horizontal seal area, the side seal area, and the small package area, and generates an inspection result, and then further comprising the steps of:

and if the detection result shows that the to-be-detected area has the defect point or the defect area, cutting off the to-be-detected area, and butting and adhering the cut.

5. The package quality inspection method according to claim 1, wherein the analyzing obtains a horizontal seal area, a side seal area, and a packet area of the real-time image of the area to be inspected, detects defect points and defect areas of the horizontal seal area, the side seal area, and the packet area, and generates an inspection result, specifically comprising the steps of:

processing the image by adopting a projection fitting detection algorithm to obtain a transverse sealing area in the area to be detected, and obtaining a side sealing area and a small packet area of the area to be detected by adopting affine transformation;

searching for defect points and defect areas in the transverse sealing area, the side sealing area and the small packet area of the area to be detected;

and calculating the characteristics of the defect points and the defect area, counting the defect condition of the current connected small bags, and generating a detection result.

6. The package quality inspection method according to claim 5, wherein the image is processed by a projection fitting inspection algorithm to obtain a horizontal seal area in the area to be inspected, and a side seal area and a small packet area in the area to be inspected are obtained by affine transformation; searching for defect points and defect areas in the transverse sealing area, the side sealing area and the small packet area of the area to be detected; calculating the characteristics of the defect points and the defect areas, counting the defect conditions of the current connected small bags, and generating a detection result, wherein the method specifically comprises the following steps:

modeling a defect-free detection area of the connected small bags, extracting a transverse sealing area, a side sealing area and a small bag material shortage limit position area in the defect-free detection area, and calculating the position characteristics and the gray level characteristics of the transverse sealing area, the side sealing area and the small bag material shortage limit position area;

extracting a target region ROI from the region to be detected based on the gray level and shape information;

performing Blob analysis on the target region ROI, performing measurement fitting and affine transformation, and rectifying an Image Level of a to-be-processed region Image;

performing Projection analysis in the horizontal direction on the gray Level in the Image Level to obtain horizontal Projection Hor Projection;

calculating extreme value coordinates and the most value of a first-order derivative of the horizontal Projection Hor Projection, then traversing the extreme value coordinates in sequence, and judging the obtained extreme value and the obtained most value to obtain the most value coordinates;

fitting the most-valued coordinates into a straight line by using morphology and Blob analysis and the position characteristics of a target Region ROI, enveloping a rectangle by using the fitted straight line, and corroding the rectangle in the product conveying direction to obtain a Horizontal Sealing detection Region Horizontal Sealing Region;

calculating the position characteristic and the shape characteristic of a Horizontal Sealing detection Region, calculating an affine transformation matrix by combining a template, and converting the template Region into a Test Region to be detected;

and calculating judgment values such as the defect area, the defect quantity, the gray distribution characteristic and the like of the Region to be detected, comparing the judgment values with the position characteristic and the gray characteristic of the template and the product characteristic value to obtain corresponding defects, namely judging empty packages, included angles, material clamping at transverse sealing positions, material shortage and joint dislocation, and finishing the detection of the packaging quality defects.

7. A packaging quality inspection apparatus for carrying out the packaging quality inspection method according to any one of claims 1 to 6, wherein the packaging quality inspection apparatus is provided with a first station, a second station, a third station and a fourth station in sequence, the pouches to be inspected being moved in the direction from the first station to the fourth station, the packaging quality inspection apparatus comprising:

the image capturing component is arranged at the third station and used for acquiring a real-time image of the area to be detected of the current bag-connected small bag;

the packaging quality detection system is in communication connection with the image capturing assembly, controls the image capturing assembly to obtain a real-time image of a to-be-detected area of the current bag-connected small bag, adjusts the focal length of the image capturing assembly according to the real-time image of the to-be-detected area until the real-time image of the to-be-detected area is clear in outline and clear in edge, analyzes and obtains a transverse sealing area, a side sealing area and a small bag area of the real-time image of the to-be-detected area, detects defect points and defect areas of the transverse sealing area, the side sealing area and the small bag area, and generates a detection result.

8. The packaging quality inspection apparatus according to claim 7, further comprising a composite light source assembly, wherein the composite light source assembly is communicatively connected to the packaging quality inspection system, the composite light source assembly is disposed at the third station and is disposed opposite to the image capturing assembly, the composite light source assembly is configured to emit a combined light beam to the area to be inspected, and the packaging quality inspection system adjusts the brightness of the combined light beam according to the real-time image of the area to be inspected of the current pouch-connected packet until the real-time image of the area to be inspected is well-defined and has clear edges.

9. The packaging quality detection apparatus according to claim 7, further comprising a photoelectric sensing component disposed at the second station, wherein the photoelectric sensing component is configured to detect the transverse seal of the current bag-connected packet and generate a trigger signal when the transverse seal of the current bag-connected packet is detected, and the packaging quality detection system controls the image capturing component to obtain a real-time image of the region to be detected of the current bag-connected packet according to the trigger signal.

10. The package quality inspection apparatus of claim 7, further comprising a defective product handling device and an electrically driven roller, wherein the defective product handling device is disposed at the fourth station, and the defective product handling device is configured to cut off a detection area having a defective spot or a defective area and to butt-bond the cut; the electrically-driven roller is arranged at the first station and used for inputting the current bag-connected small bag into the packaging quality detection equipment and driving the current bag-connected small bag to move in the direction from the first station to the fourth station.

Technical Field

The present invention relates to the field of package quality detection technologies, and in particular, to a package quality detection method and a package quality detection apparatus.

Background

In the fields of instant food, medicine, health products, daily necessities, chemical industry and the like, the method is often used for continuously filling products into packaging materials according to a certain dosage and a certain distance, and performing transverse sealing and side sealing on the products through high temperature to form the products in the form of connected bags and small bags with transverse seals as intervals, for example, a drying agent is packaged into the connected bags and small bags.

In the packaging process, due to instability of technological processes such as loading, clamping, transverse sealing and the like, product defects such as empty bags, included angles, material clamping at the transverse sealing position, material shortage, joint dislocation and the like are easy to occur, and the defects can cause miscut in the slitting process of bag-connected products, for example, for bag-connected small bags formed by drying agent bag making, the miscut can cause drying agents to scatter and pollute the dried products. Therefore, it is necessary to perform defect detection on the connected bags and defect removal on the connected bags having defects.

The traditional detection mode of the packaging industry is to adopt manual observation for defects and carry out sampling inspection on products of a batch. However, since the production line speed of the pack is high, the production line speed is as high as 600 pieces/minute, and the manual sampling method is not easy to find defects earlier. When the defects are detected by the traditional detection mode, a production line produces a certain number of defective products, the yield is seriously reduced, the resource waste is caused, and the production cost is increased.

The packaging industry also detects the product defects by a thickness spacing method to avoid the defects from polluting, and the specific detection mode is that the transverse seal, the thickness and the transverse seal spacing of the bag-connected small bags are comprehensively detected during cutting so as to judge whether the bag-connected small bags need to be cut currently. However, the thickness-space method cannot effectively identify the material clamping at the transverse sealing and the side sealing of the connected small bag, and also can cause product scattering and pollution when the transverse sealing of the connected small bag is cut.

Therefore, a method and an apparatus for inspecting the quality of a package are needed to solve the above problems.

Disclosure of Invention

The invention aims to provide a packaging quality detection method, which can effectively detect various defects of a connected bag and a small bag in real time with high precision, avoid resource waste caused by manual detection delay, effectively save production cost, effectively simplify detection flow and improve accuracy, can detect the defect which cannot be detected by a thickness spacing method, and greatly reduce pollution caused by missed detection.

The invention further aims to provide packaging quality detection equipment which can be used for effectively detecting various defects of a connected bag and a small bag in real time with high precision, avoiding resource waste caused by manual detection delay, effectively saving production cost, effectively simplifying detection flow and improving accuracy, can be used for detecting the defect which cannot be detected by a thickness spacing method, and greatly reduces pollution caused by detection omission.

In order to achieve the aim, the invention discloses a packaging quality detection method which is suitable for detecting defects of a bag-connected small bag and comprises the following steps:

s1, acquiring a real-time image of the area to be detected of the current bag-connected small bag;

s2, adjusting the real-time image focal length of the region to be detected until the real-time image of the region to be detected is clear in outline and clear in edge;

s3, analyzing and acquiring a transverse sealing area, a side sealing area and a small packet area of a real-time image of the area to be detected, detecting defect points and defect areas of the transverse sealing area, the side sealing area and the small packet area, and generating a detection result.

Compared with the prior art, the method for detecting the quality of the product has the advantages that on one hand, the real-time image focal length of the area to be detected is adjusted, so that the real-time image of the area to be detected is clear in outline and edge, and the erroneous judgment caused by the inaccurate real-time image focal length is avoided; on the other hand, the transverse sealing area, the side sealing area and the small bag area of the real-time image of the area to be detected are obtained through analysis, the defect points and the defect areas of the transverse sealing area, the side sealing area and the small bag area are detected, the detection area is comprehensive, various defects of the small bags connected with the bags can be covered, resource waste caused by missed detection is avoided, and production cost is effectively saved.

Preferably, the step (1) further comprises the following steps:

and S11, emitting a combined light beam to the area to be detected, and adjusting the brightness of the combined light beam until the real-time image of the area to be detected has clear outline and clear edge.

Preferably, the step (1) specifically includes the following steps:

s101, detecting the transverse seal of the bag-connected small bag, and if the transverse seal of the bag-connected small bag is detected, acquiring a real-time image of a to-be-detected area of the current bag-connected small bag.

Preferably, the step (3) is further followed by the steps of:

and S31, if the detection result shows that the area to be detected has the defect point or the defect area, cutting the area to be detected, and butting and adhering the cut.

Preferably, the step (3) specifically includes the following steps:

s301, processing the image by adopting a projection fitting detection algorithm to obtain a transverse sealing area in the area to be detected, and obtaining a side sealing area and a small packet area of the area to be detected by adopting affine transformation;

s302, finding out defect points and defect areas in a transverse sealing area, a side sealing area and a small packet area of the area to be detected;

s303, calculating the characteristics of the defect points and the defect areas, counting the defect condition of the current connected small bags, and generating a detection result.

Specifically, the steps (301), (302), and (303) specifically include the following steps:

s3001, modeling a defect-free detection area of the connected bags and the small bags, extracting a transverse sealing area, a side sealing area and a small bag material shortage limit position area in the defect-free detection area, and calculating position characteristics and gray characteristics of the transverse sealing area, the side sealing area and the small bag material shortage limit position area;

s3002, extracting a target region ROI from the region to be detected based on the gray scale and shape information;

s3003, performing Blob analysis on the target region ROI, performing measurement fitting and affine transformation, and rectifying the Image Level of the to-be-processed region Image to be detected;

s3004, carrying out horizontal projection analysis on the gray Level in the Image Level to obtain horizontal projection HorProjection;

s3005, calculating extreme value coordinates and the most value of the first derivative of the horizontal Projection Hor Projection, then traversing the extreme value coordinates in sequence, and judging the obtained extreme value and the obtained most value to obtain the most value coordinates;

s3006, fitting the most-valued coordinates into a straight line by using morphology and Blob analysis and the position characteristics of a target Region ROI, enveloping a rectangle by using the fitted straight line, and corroding the rectangle in the product conveying direction to obtain a Horizontal Sealing detection Region Horizontal Sealing Region;

s3007, calculating the position characteristics and shape characteristics of Horizontal Sealing detection regions, calculating an affine transformation matrix by combining a template, and converting the template Region into a Test Region to be detected;

s3008, calculating determination values of defect area, defect quantity, gray distribution characteristic and the like of the Region to be detected Region by using morphology and Blob analysis, comparing the determination values with position characteristic and gray characteristic of the template and product characteristic value to obtain corresponding defects, namely determining empty package, included angle, material clamping at the transverse sealing position, material shortage and joint dislocation, and completing the detection of packaging quality defects.

Correspondingly, the invention also discloses packaging quality detection equipment which is used for executing the packaging quality detection method, wherein the packaging quality detection equipment is sequentially provided with a first station, a second station, a third station and a fourth station, a bag-connected packet to be detected moves along the direction from the first station to the fourth station, the packaging quality equipment comprises an image capturing component and a packaging quality detection system, the image capturing component is arranged at the third station, and the image capturing component is used for acquiring a real-time image of a region to be detected of the current bag-connected packet; the packaging quality detection system is in communication connection with the image capturing assembly, controls the image capturing assembly to obtain a real-time image of a to-be-detected area of the current bag-connected small bag, adjusts the focal length of the image capturing assembly according to the real-time image of the to-be-detected area until the real-time image of the to-be-detected area is clear in outline and clear in edge, analyzes and obtains a transverse sealing area, a side sealing area and a small bag area of the real-time image of the to-be-detected area, detects defect points and defect areas of the transverse sealing area, the side sealing area and the small bag area, and generates a detection result.

Compared with the prior art, the device for detecting the quality of the packaged product adjusts the real-time image focal length of the area to be detected through the image capturing component, so that the real-time image of the area to be detected is clear in outline and edge, and misjudgment caused by inaccurate real-time image focal length is avoided; on the other hand, the package quality detection system analyzes and acquires the transverse sealing area, the side sealing area and the small package area of the real-time image of the area to be detected, detects the defect points and the defect areas of the transverse sealing area, the side sealing area and the small package area, has comprehensive detection areas, can cover various defects of the connected small packages, avoids resource waste caused by missing detection, and effectively saves production cost.

Preferably, the packaging quality detection equipment further comprises a composite light source assembly, the composite light source assembly is in communication connection with the packaging quality detection system, the composite light source assembly is arranged at the third station and is arranged opposite to the image capturing assembly, the composite light source assembly is used for emitting a combined light beam to the area to be detected, and the packaging quality detection system adjusts the brightness of the combined light beam according to the real-time image of the area to be detected of the current bag-connected small bag until the real-time image of the area to be detected is clear in outline and clear in edge.

Preferably, the packaging quality detection device further comprises a photoelectric sensing assembly, the photoelectric sensing assembly is arranged on the second station, the photoelectric sensing assembly is used for detecting the transverse seal of the current bag-connected small bag and generating a trigger signal when the transverse seal of the current bag-connected small bag is detected, and the packaging quality detection system controls the image capturing assembly to acquire a real-time image of the region to be detected of the current bag-connected small bag according to the trigger signal.

Preferably, the packaging quality detection equipment further comprises a defective product processing device and an electrically-driven roller, wherein the defective product processing device is arranged at the fourth station and is used for cutting off a detection area with a defective point or a defective area and butting and adhering the cut; the electrically-driven roller is arranged at the first station and used for inputting the current bag-connected small bag into the packaging quality detection equipment and driving the current bag-connected small bag to move in the direction from the first station to the fourth station.

Drawings

Fig. 1 is a flowchart illustrating a method for detecting a quality of a package according to the present invention.

Fig. 2 is a flowchart of another preferred embodiment of the method for detecting the quality of the package according to the present invention.

Fig. 3 is a flowchart illustrating the execution of step (3) in the method for detecting the quality of the package according to the present invention.

Fig. 4 is a flowchart illustrating the steps (301), (302) and (303) of the method for detecting the quality of the package according to the present invention.

Fig. 5 is a schematic structural diagram of the package quality inspection apparatus of the present invention.

Fig. 6 is a connection block diagram of the package quality inspection apparatus of the present invention.

Fig. 7 is a connection block diagram of still another preferred embodiment of the package quality inspection apparatus of the present invention.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

Referring to fig. 1, the method for detecting the packaging quality of the present embodiment is suitable for detecting defects of a connected small bag, and includes the following steps:

s1, acquiring a real-time image of the area to be detected of the current bag-connected small bag;

s2, adjusting the real-time image focal length of the region to be detected until the real-time image of the region to be detected is clear in outline and clear in edge;

s3, analyzing and acquiring a transverse sealing area, a side sealing area and a small packet area of a real-time image of the area to be detected, detecting defect points and defect areas of the transverse sealing area, the side sealing area and the small packet area, and generating a detection result.

Referring to fig. 2, preferably, the step (1) further includes the following steps:

and S11, emitting a combined light beam to the area to be detected, and adjusting the brightness of the combined light beam until the real-time image of the area to be detected has clear outline and clear edge. According to the scheme, the light supplementing operation is carried out on the area to be detected through the additional combined light beam, and the real-time image can be adjusted to be clear in outline and edge. The area to be detected, to which the combined light beam is emitted, is specifically two small bags in the connected small bags and a transverse seal between the two small bags.

Referring to fig. 3, preferably, the step (1) specifically includes the following steps:

s101, detecting the transverse seal of the bag-connected small bag, and if the transverse seal of the bag-connected small bag is detected, acquiring a real-time image of a to-be-detected area of the current bag-connected small bag. In the scheme, whether the transverse seal of the bag-connected small bag appears or not is detected, and when the transverse seal of the bag-connected small bag appears, the real-time image of the current bag-connected small bag to be detected is acquired, so that the occupation of system resources due to continuous acquisition of the real-time image is avoided.

Referring to fig. 2, preferably, the step (3) further includes the following steps:

and S31, if the detection result shows that the area to be detected has the defect point or the defect area, cutting the area to be detected, and butting and adhering the cut.

Referring to fig. 4, preferably, the step (3) specifically includes the following steps:

s301, processing the image by adopting a projection fitting detection algorithm to obtain a transverse sealing area in the area to be detected, and obtaining a side sealing area and a small packet area of the area to be detected by adopting affine transformation;

s302, finding out defect points and defect areas in a transverse sealing area, a side sealing area and a small packet area of the area to be detected;

s303, calculating the characteristics of the defect points and the defect areas, counting the defect condition of the current connected small bags, and generating a detection result.

Specifically, the steps (301), (302), and (303) specifically include the following steps:

s3001, modeling a defect-free detection area of the connected bags and the small bags, extracting a transverse sealing area, a side sealing area and a small bag material shortage limit position area in the defect-free detection area, and calculating position characteristics and gray characteristics of the transverse sealing area, the side sealing area and the small bag material shortage limit position area;

s3002, extracting a target region ROI from the region to be detected based on the gray scale and shape information;

s3003, performing Blob analysis on the target region ROI, performing measurement fitting and affine transformation, and rectifying the Image Level of the to-be-processed region Image to be detected;

s3004, carrying out horizontal projection analysis on the gray Level in the Image Level to obtain horizontal projection HorProjection;

s3005, calculating extreme value coordinates and the most value of the first derivative of the horizontal Projection Hor Projection, then traversing the extreme value coordinates in sequence, and judging the obtained extreme value and the obtained most value to obtain the most value coordinates;

s3006, fitting the most-valued coordinates into a straight line by using morphology and Blob analysis and the position characteristics of a target Region ROI, enveloping a rectangle by using the fitted straight line, and corroding the rectangle in the product conveying direction to obtain a Horizontal Sealing detection Region Horizontal Sealing Region;

s3007, calculating the position characteristics and shape characteristics of Horizontal Sealing detection regions, calculating an affine transformation matrix by combining a template, and converting the template Region into a Test Region to be detected;

s3008, calculating determination values of defect area, defect quantity, gray distribution characteristic and the like of the Region to be detected Region by using morphology and Blob analysis, comparing the determination values with position characteristic and gray characteristic of the template and product characteristic value to obtain corresponding defects, namely determining empty package, included angle, material clamping at the transverse sealing position, material shortage and joint dislocation, and completing the detection of packaging quality defects.

It should be noted that, for the connected small bag products of different specifications and models, the product characteristic values are different, and different product characteristic values are set according to the connected small bag products of different specifications and models, so that the detection of different product defects can be satisfied.

With reference to fig. 1-4, the method for detecting the quality of the packaged product of the present invention, on one hand, adjusts the focal length of the real-time image of the region to be detected, so as to make the real-time image of the region to be detected have a clear outline and a clear edge, thereby avoiding erroneous judgment due to inaccurate focal length of the real-time image; on the other hand, the transverse sealing area, the side sealing area and the small bag area of the real-time image of the area to be detected are obtained through analysis, the defect points and the defect areas of the transverse sealing area, the side sealing area and the small bag area are detected, the detection area is comprehensive, various defects of the small bags connected with the bags can be covered, resource waste caused by missed detection is avoided, and production cost is effectively saved.

Referring to fig. 5 and 6, the packaging quality detection apparatus 100 of the present embodiment is used for executing the packaging quality detection method as described above, wherein the packaging quality detection apparatus 100 is provided with a first station, a second station, a third station and a fourth station in sequence, and the continuous bag packet 1 to be detected moves along the direction from the first station to the fourth station. The packaging quality equipment comprises an image capturing component 10 and a packaging quality detection system 20, wherein the image capturing component 10 is arranged at a third station, and the image capturing component 10 is used for acquiring a real-time image of the area 101 to be detected of the current bag-connected small bag 1.

The packaging quality detection system 20 is in communication connection with the image capturing assembly 10, the packaging quality detection system 20 controls the image capturing assembly 10 to obtain a real-time image of the area 101 to be detected of the current bag-connected small bag 1, adjusts the focal length of the image capturing assembly 10 according to the real-time image of the area 101 to be detected until the real-time image of the area 101 to be detected is clear in outline and clear in edge, analyzes and obtains a transverse sealing area, a side sealing area and a small bag area of the real-time image of the area 101 to be detected, detects defect points and defect areas of the transverse sealing area, the side sealing area and the small bag area, and generates a detection result.

Referring to fig. 5 and 6, the packaging quality detection apparatus 100 of the present embodiment further includes a composite light source assembly 30 and a photoelectric sensing assembly 40, the composite light source assembly 30 is connected to the packaging quality detection system 20 in a communication manner, the composite light source assembly 30 is disposed at the third station and is disposed opposite to the image capturing assembly 10, the composite light source assembly 30 is configured to emit a combined light beam to the region 101 to be detected, and the packaging quality detection system 20 adjusts the brightness of the combined light beam according to the real-time image of the region 101 to be detected of the current pouch 1 until the real-time image of the region 101 to be detected has a clear outline and a clear edge. Specifically, the composite light source assembly 30 includes a light source, a controller and a housing, the light source is connected to the controller and is installed in the housing, and the light source is formed by combining infrared light and white light, so that the light source has a good light supplementing effect.

The photoelectric sensing assembly 40 is arranged on the second station, the photoelectric sensing assembly 40 is used for detecting the transverse seal of the current bag-connected small bag 1 and generating a trigger signal when the transverse seal of the current bag-connected small bag 1 is detected, and the packaging quality detection system 20 controls the image capturing assembly 10 to obtain a real-time image of the area to be detected 101 of the current bag-connected small bag 1 according to the trigger signal.

Referring to fig. 5 and 7, in a preferred embodiment, the image capturing assembly 10 includes a CMOS industrial camera and a zoom lens matched with the CMOS industrial camera, the CMOS industrial camera is electrically connected to the package quality detecting system 20 and the photoelectric sensing assembly 40, respectively, the trigger signal of the photoelectric sensing assembly is sent to the CMOS industrial camera and the package quality detecting system 20, the CMOS industrial camera directly obtains the real-time image of the region 101 to be detected of the current pouch-connected packet 1 according to the trigger signal, and the package quality detecting system 20 analyzes the defect of the real-time image of the region 101 to be detected of the current pouch-connected packet 1 in real time according to the trigger signal, so as to achieve the fast response of the image capturing assembly 10 and the package quality detecting system 20.

Further, the package quality detection system 20 includes package quality detection software, an industrial personal computer and a display, the package quality detection software includes a computer algorithm program related to the package quality detection method, the industrial personal computer installs and executes the package quality detection software, and the display is used for displaying relevant parameters and detection results.

Referring to fig. 5 to 7, the packaging quality inspection apparatus 100 of the present embodiment further includes a defective product handling device 50 and an electrically driven roller 60, the defective product handling device 50 is disposed at the fourth station, and the defective product handling device 50 is configured to cut off the inspection area having the defective point or the defective area and to bond the cut-outs in a butt joint manner, so as to ensure continuity of the connected pouch 1 after cutting off the inspection area having the defective point or the defective area; the electrically driven roller 60 is disposed at the first station, and the electrically driven roller 60 is configured to input the currently connected small bags 1 into the packaging quality detection apparatus 100, and drive the currently connected small bags 1 to move along the direction from the first station to the fourth station.

The operation of the package quality inspection apparatus 100 of the present embodiment will be described in detail below.

Referring to fig. 5-7, first, the electrically driven roller 60 conveys the connected bags 1 into the packaging quality detection device 100, and conveys the current connected bags 1 along the first station to the fourth station for detection.

Next, in the second station, the package quality detection system 20 adjusts the focal length of the zoom lens to the CMOS industrial camera in the image capturing assembly 10 to image the current pouch-connected packet 1 clearly.

Then, in the third station, the package quality inspection system 20 adjusts the light source position of the composite light source assembly 30, so that the light source and the CMOS industrial camera are completely in the same horizontal plane, thereby ensuring uniform brightness in the field of view of the CMOS industrial camera.

After the light source position of the composite light source assembly 30 is adjusted and fixed, the packaging quality detection system 20 adjusts the brightness of the light beam emitted by the light source, so that the images of the transverse seals, the side seams and the small bags of the current connected bags and small bags 1 have stronger contrast, and the images of the defects of the current connected bags, such as included angles, material clamping at the transverse seals, material shortage, joint dislocation and the like have stronger contrast relative to the background.

Moreover, after the brightness of the composite light source is adjusted, the packaging quality detection system 20 is started, the packaging quality detection software is opened, the image capturing component 10 is triggered by the photoelectric sensing component 40 located at the third station to acquire a real-time image of the to-be-detected area 101 of the current bag-connected small bag 1, the real-time image of the to-be-detected area 101 of the current bag-connected small bag 1 needs to be an image without defects, namely a good-quality image, and the packaging quality detection system 20 establishes a transverse sealing area, a side sealing area and a small bag starving limit position area template according to the image without defects.

And finally, operating the defect detection function of the packaging quality detection software, and adjusting the defect detection area and detection parameters in real time according to the model and specification of the connected small bag 1 so as to adapt to different connected small bag 1 products.

So far, after the execution is completed, the defect detection area and the detection parameters of the current type and specification of the connected small bag 1 are obtained, and the defect detection can be performed on the connected small bag 1 of the current type and specification by re-executing the above process. It should be noted that, for the pouch packets 1 of different specifications and models, the area 101 to be detected of the pouch packet 1 without defects is subjected to the above steps to obtain the corresponding defect detection area and detection parameters, so as to establish a detection database of the pouch packet 1 for subsequent direct calling.

It should be noted that the first station, the second station, the third station, and the fourth station related in this embodiment may be actual stations or virtual stations, and the introduction of the stations is convenient for describing the working process of the package quality inspection apparatus 100 of this embodiment and the matching time of different components, so the specific setting of the first station, the second station, the third station, and the fourth station is not limited in this embodiment.

With reference to fig. 5 to 7, in one aspect, the packaging quality inspection apparatus 100 of the present invention adjusts the real-time image focal length of the region 101 to be inspected through the image capturing component 10, so that the real-time image of the region 101 to be inspected has a clear outline and a clear edge, and avoids erroneous judgment due to inaccurate real-time image focal length; on the other hand, the package quality detection system 20 analyzes and acquires the transverse sealing area, the side sealing area and the small package area of the real-time image of the area to be detected 101, detects the defect points and the defect areas of the transverse sealing area, the side sealing area and the small package area, has comprehensive detection areas, can cover various defects of the connected small packages 1, avoids resource waste caused by missing detection, and effectively saves production cost.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, therefore, the present invention is not limited by the appended claims.