CN113834821A - Defect detection method for plastic gloves - Google Patents

Defect detection method for plastic gloves Download PDF

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Publication number
CN113834821A
CN113834821A CN202111120667.1A CN202111120667A CN113834821A CN 113834821 A CN113834821 A CN 113834821A CN 202111120667 A CN202111120667 A CN 202111120667A CN 113834821 A CN113834821 A CN 113834821A
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plate
image acquisition
camera
gloves
light source
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CN113834821B (en
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孙传洪
毕作文
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Shandong Yingchuang Intelligent Technology Co ltd
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Shandong Yingchuang Intelligent Technology Co ltd
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84Systems specially adapted for particular applications
    • G01N21/88Investigating the presence of flaws or contamination
    • G01N21/89Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
    • G01N21/892Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles characterised by the flaw, defect or object feature examined
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01Arrangements or apparatus for facilitating the optical investigation
    • G01N2021/0106General arrangement of respective parts
    • G01N2021/0112Apparatus in one mechanical, optical or electronic block

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

Abstract

A method for detecting defects of plastic gloves belongs to the technical field of glove defect detection. Including image acquisition mechanism, its characterized in that: the glove type glove box is provided with a control box (3), the two image acquisition mechanisms are oppositely arranged on the upper part of the control box (3), a detection area is formed between the two image acquisition mechanisms at intervals, a background plate (7) is arranged between the two image acquisition mechanisms, and two rows of naturally drooping gloves respectively penetrate through the two sides of the background plate (7); the upper part of the image acquisition mechanism is provided with a camera (11) for shooting the front side of the corresponding glove, and the lower part of the image acquisition mechanism is provided with a camera (11) for shooting the back side of the corresponding glove. According to the defect detection method for the plastic gloves, on the premise that stations are not required to be added, the image acquisition mechanism on one side of the background plate is used for simultaneously acquiring images of two sides of the gloves, and compared with a traditional visual detection method, the detection efficiency is greatly improved.

Description

Defect detection method for plastic gloves
Technical Field
A method for detecting defects of plastic gloves belongs to the technical field of glove defect detection.
Background
At present, in the existing plastic glove production line, gloves enter a demolding procedure on a hand mold along with a production line after being molded. During this period, the surface of the glove needs to be inspected for surface defects such as oil stains, defects, or pinholes. In the traditional detection method, the surface defects are detected by human eyes, and then the gloves with the surface defects are peeled off from the hand model by manpower, so that more manpower is needed, the labor intensity is high, and the detection accuracy is low.
With the continuous development of visual detection methods, the detection of plastic gloves gradually replaces manual detection by machine detection. The plastic glove naturally droops after being demoulded, the plastic glove is subjected to a visual detection method along with the hand mould, a camera in the visual detection method is used for photographing the glove, the photograph is sent into a controller, software in the controller is used for identifying the image to finish the judgment of the glove defect, and then the glove with the defect is removed by a subsequent removing device. The machine vision detection method can greatly improve the production efficiency and the automation degree of production. And the machine vision is easy to realize information integration, data statistics and analysis, thereby more conveniently realizing the control of the product quality.
However, in the current visual inspection method for gloves, in order to highlight the contrast of the gloves in the image, a background plate needs to be arranged on one side of the gloves, and then a camera needs to be arranged on the other side of the gloves, so that only one side of a row of gloves can be inspected at one station, and the other side of the gloves is inspected at a second station, and therefore, the length of the station is long. If a plurality of rows of gloves need to be detected simultaneously, the length of the required stations can be multiplied, but the detection efficiency is improved by the detection mode, but the length of the visual detection method is greatly increased, so that the arrangement requirement on the whole production line is higher. Therefore, it is an urgent need in the art to design a technical solution capable of improving the detection efficiency and controlling the length of the visual detection method.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, and the plastic glove defect detection method has the advantages that on the premise that stations are not required to be added, the image acquisition mechanism on one side of the background plate is used for simultaneously acquiring images of two sides of the glove, and compared with the traditional visual detection method, the detection efficiency is greatly improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the defect detection method of the plastic gloves comprises an image acquisition mechanism, and is characterized in that: the image acquisition mechanism be provided with two relatively, be provided with a camera respectively in the upper portion and the lower part of each image acquisition mechanism at least, the interval forms detection area between two image acquisition mechanisms, is provided with the background board between two image acquisition mechanisms, still include following step:
step 1, two rows of gloves which naturally droop enter a detection area under the driving of the gloves, and respectively penetrate through two sides of a background plate;
step 2, when the gloves pass through the detection area, the two image acquisition mechanisms respectively acquire images of the corresponding glove row, wherein the camera positioned at the upper part of the image acquisition mechanisms acquires the images of the glove facing the camera, and the camera positioned at the lower part of the image acquisition mechanisms acquires the images of the glove facing away from the camera;
and 3, a camera in the image acquisition mechanism sends the acquired image into the control box, and a controller in the control box judges the defect condition of the glove according to the image information.
Preferably, the image acquisition mechanism comprises a back plate, the back plate is provided with four branches which are perpendicular to each other in pairs, a light source plate is movably mounted at the end part of each branch, and the cameras are movably mounted at four corners of the back plate.
Preferably, a set of backboard chutes are respectively formed in each branch of the backboard along the extending direction of each branch, a camera support column is vertically installed on each of the two sets of backboard chutes along the advancing direction of the gloves, the two camera support columns are arranged at intervals along the advancing direction of the gloves, a camera fixing frame is movably installed at the end of each camera support column, and the camera is movably installed on each camera fixing frame in the operation.
Preferably, light source fixing plates are respectively arranged at the end parts of the four branches of the back plate, light source supporting plates are respectively hinged to the front side of each light source fixing plate, one light source plate is respectively fixed to the front side of each light source supporting plate, and a plurality of light sources with irradiation directions facing the gloves are arranged on the surface of each light source plate.
Preferably, the middle parts of the light source fixing plate and the light source supporting plate are respectively provided with a strip-shaped mounting groove, and the light source fixing plate and the light source supporting plate are overlapped and then hinged through a bolt.
Preferably, the two sides below the bottom plate of the detection area are provided with acquisition adjusting structures, and the bottoms of the two image acquisition mechanisms respectively penetrate through the bottom plate of the detection area downwards and then are fixed with the acquisition adjusting structures; and a background plate adjusting mechanism is arranged between the acquisition adjusting structures at the two sides, and the bottom of the background plate respectively penetrates through the bottom plate of the detection area downwards and then is fixed with the background plate adjusting mechanism.
Preferably, two sliding rails are arranged below the bottom plate of the detection area side by side, and the acquisition adjusting mechanism and the background plate adjusting mechanism comprise a sliding plate and a sliding block which slide along the sliding rails; two sides and the middle part of the arrangement direction of the slide rails are respectively and vertically provided with a slide plate above the two slide rails, two ends of each slide plate are respectively and fixedly provided with a slide block, the two slide rails respectively penetrate through the slide blocks at the two ends of each slide plate, the background plate is fixed with the slide plates at the middle parts of the slide rails, and the image acquisition mechanism is fixed with the slide plates at the two sides.
Preferably, two outer covers are erected on two sides of the upper surface of the control box respectively, the two image acquisition mechanisms are located on the inner sides of the outer covers on the two sides respectively, and a display is arranged on the back of the outer cover.
Preferably, the bottom of the background plate vertically penetrates through the detection area bottom plate and then is fixed with the acquisition adjusting mechanism, and a rotating shaft is arranged in the middle of the background plate.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the defect detection method for the plastic gloves, on the premise that stations are not required to be added, the image acquisition mechanism on one side of the background plate is used for simultaneously acquiring images of two sides of the gloves, and compared with a traditional visual detection method, the detection efficiency is greatly improved.
2. Through setting up collection adjustment structure and background board adjustment mechanism, realized the regulation of the image acquisition mechanism and the background board left and right sides position in the detection area.
3. Through seting up the mounting groove in light source fixed plate and light source backup pad middle part, realized the regulation of distance between light source board and the backplate to and the regulation of light source board every single move angle.
4. Through the swing joint of camera mount and camera support column to and the swing joint between camera mount and the camera, can realize the regulation of each camera height, swing angle and every single move angle.
Drawings
FIG. 1 is an isometric view of a method for detecting defects in a plastic glove.
FIG. 2 is a front view of a defect inspection method for a plastic glove with the cover removed.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is a right side view of fig. 2.
Fig. 5 is an enlarged view of fig. 4 at B.
Wherein: 1. the device comprises a display 2, an outer cover 3, a control box 4, a guide rail 5, a hand model 6, a fixing plate 7, a background plate 8, a collection adjusting mechanism 9, a background plate adjusting mechanism 10, a light source plate 11, a camera 12, a camera fixing frame 13, a camera supporting column 14, a supporting column 15, a back plate fixing frame 16, a back plate 17, a light source fixing plate 18, a light source supporting plate 19, a back plate sliding groove 20, a sliding block 21, a sliding plate 22 and a sliding rail.
Detailed Description
Fig. 1 to 5 are preferred embodiments of the present invention, and the present invention will be further described with reference to fig. 1 to 5.
As shown in fig. 1-2, a method for detecting defects of plastic gloves includes a defect detection system, in which two identical defect detection mechanisms (only one is shown) are arranged side by side, a guide rail 4 is arranged right above the middle of the two defect detection mechanisms, two fixing plates 6 are respectively led out from two sides of the guide rail 4, two rows of hand molds 5 are installed at the edge of each fixing plate 6, and the two rows of hand molds 5 at each side of the guide rail 4 are obliquely arranged at the same angle.
Each defect detection mechanism comprises a control box 3, and a controller of the defect detection system is arranged in the control box 3. Two outer covers 2 are erected on two sides of the upper surface of the control box 3 respectively, and detection areas through which the hand models 5 pass are formed between the outer covers 2 on the two sides at intervals. A background plate 7 is arranged in the detection area of each defect detection mechanism, and two rows of hand molds 5 in the same detection area respectively pass through the two sides of the background plate 7. The middle part of the background plate 7 is provided with a rotating shaft, the lower part of the background plate 7 is vertically arranged, and the upper part of the background plate is inclined at the same angle with the hand model 5 by virtue of the rotating shaft.
The inner sides of the two outer covers 2 on the upper part of the defect detection mechanism are respectively provided with a set of image acquisition mechanism, and the back of the outer cover 2 far away from the guide rail 4 is provided with a display 1 for displaying the image information of the gloves in real time. The two-side four-row hand mold 5 is driven by a power mechanism (such as a chain) in the guide rail 4 to pass through a detection area in the middle of the two defect detection mechanisms respectively, gloves (not shown in the figure) hung on the hand mold 5 naturally droop, in the process of passing through the detection area, the gloves in the detection area are photographed by an image acquisition mechanism in the detection area respectively, image information is sent into the control box 3, image analysis is carried out by a controller in the control box 3, and meanwhile, the images are displayed on the display 1.
A background plate adjusting mechanism 9 is arranged in the middle of the lower portion of the bottom surface of the detection area (the top surface of the control box 3), the bottom of the background plate 7 penetrates through the bottom plate of the detection area downwards and then is fixed with the background plate adjusting mechanism 9, the adjustment of the distance between the background plate 7 and the image collecting mechanisms on the two sides in the detection area is realized through the background plate adjusting mechanism 9, the operation knobs of the background plate adjusting mechanism 9 are respectively positioned on the upper portions of the front side and the rear side of the control box 3, and after the position adjustment of the background plate 7 is completed, the locking is performed through the operation knobs on the two sides.
The two sides below the bottom plate of the detection area are respectively provided with an acquisition adjusting mechanism 8, the image acquisition mechanisms on the inner sides of the two outer covers 2 are respectively fixed with the acquisition adjusting mechanisms 8 on the corresponding sides, the distance between the image acquisition mechanisms and the outer covers 2 on the corresponding sides is adjusted through the acquisition adjusting mechanisms 8, the operation knobs of the acquisition adjusting mechanisms 8 are also respectively positioned on the upper portions of the front side and the rear side of the control box 3, and the image acquisition mechanisms are locked through the operation knobs on the two sides after the position adjustment of the image acquisition mechanisms is completed.
As shown in fig. 4 to 5, a slide rail 22 is respectively installed at the front and back of the bottom plate of the detection area along the width direction of the defect detection mechanism, and the collection adjustment mechanism 8 and the background plate adjustment mechanism 9 include a slide plate 21 and a slide block 20 which slide along the slide rail 22. Two sides and the middle part of the arrangement direction of the slide rails 22 are respectively provided with a slide plate 21 above the two slide rails 22, the slide plates 21 are arranged along the arrangement direction perpendicular to the slide rails 22, two sliding blocks 20 are respectively fixed at two ends of the slide plates 21, and the two slide rails 22 respectively penetrate through the sliding blocks 20 at two ends of the slide plates 21. The image acquisition mechanism downwards penetrates through the bottom plate of the detection area and then is fixed with the sliding plates 21 at the two sides of the sliding rail 22, and the bottom of the background plate 7 downwards penetrates through the bottom plate of the detection area and then is fixed with the sliding plates 21 at the middle part of the sliding rail 22. Therefore, the left and right positions of the image acquisition mechanism and the background plate 7 are adjusted, and the bottom plate of the detection area is provided with a groove matched with the moving positions of the image acquisition mechanism and the background plate 7.
With reference to fig. 3, each image capturing mechanism includes a back plate 16, four branches are respectively formed in four directions of the back plate 16, namely, up, down, left, and right directions, and two branches in any adjacent directions form a right angle with each other. A group of back plate fixing frames 15 are arranged in parallel up and down in the middle of the back surface (the surface facing away from the detection area) of the back plate 16, the upper parts of the supporting columns 14 are fixed with the back plate 16 through the back plate fixing frames 15, and the lower parts of the supporting columns 14 penetrate through the bottom plate of the detection area downwards and then are fixed with the corresponding acquisition adjusting mechanisms 8.
Light source fixing plates 17 are respectively arranged at the end parts of the four branches of the back plate 16, light source supporting plates 18 are respectively hinged to the front side of each light source fixing plate 17, and one light source plate 10 is respectively fixed to the front side of each light source supporting plate 18. The four light source boards 10 arranged on the four branches of the back board 16 are connected end to end at the outer ring of the back board 16 to form an aperture. A plurality of light sources (such as LEDs) are arranged on the surface of each light source board 10, and the irradiation direction of the light sources faces the hand model 5.
The middle parts of the light source fixing plate 17 and the light source supporting plate 18 are respectively provided with a strip-shaped mounting groove, and the light source fixing plate 17 and the light source supporting plate 18 are hinged through bolts after being overlapped front and back. The adjustment of the distance between the light source board 10 and the back plate 16 and the adjustment of the pitch angle of the light source board 10 are achieved by the mounting grooves formed in the middle of the light source fixing plate 17 and the light source supporting plate 18.
On 16 four branches of backplate, a set of backplate spout 19 has been seted up respectively along the extending direction of each branch, through backplate spout 19 on two branches about wherein, installs a camera support post 13 respectively in the front side of backplate 16, can adjust the front and back position of each camera support post 13 through backplate spout 19. A camera fixing frame 12 is respectively installed at the end of each camera supporting column 13, and the camera fixing frame 12 is sleeved on the outer ring of the camera supporting column 13 and is fastened through fastening bolts. A camera 11 is movably mounted on the front side of each camera fixing frame 12. Namely, one camera 11 is fixed at each of four corners (at the joint of any two adjacent light source boards 10) of the back plate 16 through two camera support posts 13 at the front side of the back plate 16. The height, the swing angle and the pitch angle of each camera 11 can be adjusted through the movable connection between the camera fixing frame 12 and the camera supporting column 13 and the movable connection between the camera fixing frame 12 and the camera 11.
The specific working process and working principle are as follows:
in the method for detecting the defects of the plastic gloves, the defect detection mechanism comprises the following detection steps:
step 1, two rows of hand molds 5 positioned on the same side of a guide rail 4 enter a detection area under the drive of a fixing plate 6, two rows of gloves respectively naturally sag below the two rows of hand molds 5 through friction force, and the two rows of gloves respectively penetrate through two sides of a background plate 7;
and 2, when two rows of gloves enter the detection area, image acquisition mechanisms on two sides of the background plate 7 respectively acquire images of the corresponding gloves in the row, wherein two cameras 11 positioned above the back plate 16 shoot one side (the side facing the cameras 11) of the gloves, and two cameras 11 positioned below the back plate 16 shoot the other side (the side facing away from the cameras 11) of the gloves.
And 3, the camera 11 in the image acquisition mechanism sends the acquired image into the control box 3, and the controller in the control box 3 judges the defect condition of the glove according to the image information.
Specifically, the method comprises the following steps:
firstly, adjusting the position of a background plate and the inclination angle of the upper part of the background plate 7 by a background plate adjusting mechanism 9 according to the inclination angle of a hand model 5 in a detection area; the height of the back plate 16 is adjusted through the relative height of the back plate 16 and the back plate fixing frame 15; the front-back distance and the pitch angle of the light source board 10 are adjusted by the light source fixing board 17 and the light source supporting board 18; the front and back positions of each camera supporting column 13 are adjusted through the back plate sliding groove 19; finally, the height, the swing angle and the pitch angle of each camera 11 are adjusted through the movable connection between the camera fixing frame 12 and the camera supporting column 13 and the movable connection between the camera fixing frame 12 and the camera 11.
After the adjustment is completed, the hand model 5 carries the glove to perform image acquisition in the detection area. After the gloves are demoulded, the gloves are hung at the bottom of the hand mould 5, and the image acquisition mechanism on each side of the background plate 7 acquires images of the corresponding glove row. Since the shooting range of the cameras 11 is an angle rather than a point, the two cameras 11 located on the upper portion of the back plate 16 capture images of the side facing the image capturing mechanism, and the two cameras 11 located on the upper portion of the back plate 16 capture images of the side facing away from the image capturing mechanism. Consequently, the defect detection system realizes image acquisition on two rows of gloves simultaneously, realizes image acquisition on four rows of gloves simultaneously, and compared with the traditional visual detection method, the detection efficiency is greatly improved on the premise of not increasing stations.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.

Claims (9)

1. A defect detection method of a plastic glove comprises an image acquisition mechanism, and is characterized in that: the image acquisition mechanism be provided with two relatively, be provided with a camera (11) respectively in the upper portion and the lower part of each image acquisition mechanism, the interval forms detection area between two image acquisition mechanisms, is provided with background board (7) between two image acquisition mechanisms, still includes following step:
step 1, two rows of gloves drooping naturally enter a detection area under the driving of the gloves, and penetrate through two sides of a background plate (7) respectively;
step 2, when the gloves pass through a detection area, the two image acquisition mechanisms respectively acquire images of the corresponding glove row, wherein a camera (11) positioned at the upper part of the image acquisition mechanisms acquires the images of one side, facing the camera (11), of the gloves, and a camera (11) positioned at the lower part of the image acquisition mechanisms acquires the images of one side, back to the camera (11), of the gloves;
and 3, a camera (11) in the image acquisition mechanism sends the acquired image into the control box (3), and a controller in the control box (3) judges the defect condition of the glove according to the image information.
2. The method for detecting defects of plastic gloves according to claim 1, wherein: the image acquisition mechanism comprises a back plate (16), the back plate (16) is provided with four pairwise vertical branches, a light source plate (10) is movably mounted at the end part of each branch, and the cameras (11) are movably mounted at the four corners of the back plate (16).
3. The method for detecting defects of plastic gloves according to claim 2, wherein: a set of backboard sliding grooves (19) are respectively formed in each branch of the backboard (16) along the extending direction of each branch, a camera supporting column (13) is respectively and vertically installed through the two sets of backboard sliding grooves (19) along the advancing direction of the gloves, the two camera supporting columns (13) are arranged at intervals along the advancing direction of the gloves, a camera fixing frame (12) is movably installed at the end part of each camera supporting column (13), and the camera (11) is movably installed on each camera fixing frame (12) in an operation mode.
4. The method for detecting defects of plastic gloves according to claim 2, wherein: the light source fixing plates (17) are respectively arranged at the end parts of the four branches of the back plate (16), the front side of each light source fixing plate (17) is respectively hinged with a light source supporting plate (18), the front side of each light source supporting plate (18) is respectively fixed with one light source plate (10), and the surface of each light source plate (10) is provided with a plurality of light sources with the irradiation directions facing to the gloves.
5. The method for detecting defects of plastic gloves according to claim 4, wherein: the middle parts of the light source fixing plate (17) and the light source supporting plate (18) are respectively provided with a strip-shaped mounting groove, and the light source fixing plate (17) and the light source supporting plate (18) are hinged through bolts after being overlapped.
6. The method for detecting defects of plastic gloves according to claim 1, wherein: acquisition adjusting structures (8) are arranged on two sides below the bottom plate of the detection area, and the bottoms of the two image acquisition mechanisms respectively penetrate through the bottom plate of the detection area downwards and then are fixed with the acquisition adjusting structures (8); a background plate adjusting mechanism (9) is arranged between the two side collecting and adjusting structures (8), and the bottom of the background plate (7) penetrates through the bottom plate of the detection area downwards and then is fixed with the background plate adjusting mechanism (9).
7. The method for detecting defects of plastic gloves according to claim 6, wherein: two slide rails (22) are arranged below a bottom plate of the detection area side by side, and the acquisition adjusting structure (8) and the background plate adjusting mechanism (9) comprise a slide plate (21) and a slide block (20) which slide along the slide rails (22); above two slide rails (22), two sides and the middle part along the arrangement direction of the slide rails (22) are respectively and vertically provided with a slide plate (21), two ends of the slide plate (21) are respectively fixed with a slide block (20), the two slide rails (22) respectively pass through the slide blocks (20) at the two ends of the slide plate (21), the background plate (7) is fixed with the slide plate (21) at the middle part of the slide rail (22), and the image acquisition mechanism is fixed with the slide plates (21) at the two sides.
8. The method for detecting defects of plastic gloves according to claim 1, wherein: two outer covers (2) are erected on two sides of the upper surface of the control box (3) respectively, the two image acquisition mechanisms are located on the inner sides of the outer covers (2) on the two sides respectively, and a back surface of the outer cover (2) is provided with a camera (1).
9. The method for detecting defects of plastic gloves according to claim 6, wherein: the bottom of the background plate (7) vertically penetrates through the bottom plate of the detection area and then is fixed with the acquisition adjusting mechanism (8), and a rotating shaft is arranged in the middle of the background plate (7).
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116597225A (en) * 2023-05-30 2023-08-15 常州市升越模塑股份有限公司 Method and system for detecting drawing defect of hollowed-out injection molding part
CN116597225B (en) * 2023-05-30 2023-11-03 常州市升越模塑股份有限公司 Method and system for detecting drawing defect of hollowed-out injection molding part

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