A plastic film quality inspection device

Abstract

The present invention provides a plastic film quality detection device, which relates to the technical field of optical test recognition. It includes a bottom plate, a supplementary light table, a lifting mechanism, and a detection and cleaning component. The surface of the bottom plate is screwed with the supplementary light table. A side plate is welded to the side of the bottom plate, and a top plate is welded to the top of the side plate. One end of the top plate is integrally formed with an extension plate, and a vision camera is inserted at the bottom of the extension plate, and the vision camera is aligned with the center point of the bottom supplementary light table. After the present invention detects stains on the surface of the plastic film through vision recognition, it can accurately control the subsequent detection and cleaning component to specifically remove the stain by judging the approximate position of the stain on the plastic film. Moreover, during the removal process, the plastic film around the stain is always supported, so the vibration amplitude of the plastic film in the erasure area is effectively reduced, thereby reducing the impact on the plastic film body and the probability of deformation.

Description

Technical Field

[0001] The invention relates to the technical field of optical testing and identification, in particular to a plastic film quality detection device. Background Art

[0002] During the production and processing of plastic film, it is necessary to detect and process whether there are stains on the surface. By detecting stains on the surface of plastic film, unqualified products can be found and removed in time to ensure the quality of the final product. It can also improve the flatness and cleanliness of the surface of the plastic film. Therefore, plastic film surface stain detection plays a significant role in improving product quality, reducing losses and improving production efficiency, and is an indispensable part of modern industrial production.

[0003] In the prior art, the detection equipment used for plastic film quality uses visual recognition technology based on visible light to detect stains on the surface of plastic films. However, when unclear or stains are found, they can only be processed manually, resulting in low detection efficiency and frequent interruptions of the detection process. When an automated cleaning roller is used to clean the identified stains, the plastic film body will vibrate significantly due to the change in applied pressure, thereby causing local deformation. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a plastic film quality inspection device to solve the problems raised in the above-mentioned background technology. After the present invention detects the presence of stains on the surface of the plastic film through visual recognition, the approximate position of the stain on the plastic film can be judged, and the subsequent inspection and removal components can be accurately controlled to remove the stain in a targeted manner. During the removal process, the plastic film around the stain is always supported. Therefore, while providing a higher-intensity erasing effect, the vibration amplitude of the plastic film in the erasing area is also effectively reduced, thereby reducing the impact on the plastic film body and reducing the probability of deformation.

[0005] To achieve the above object, the present invention is realized by the following technical solutions: A plastic film quality detection device, including a detection device body, the detection device body includes a bottom plate, a light supplementing table, a lifting mechanism and a detection and cleaning component. The surface of the bottom plate is screwed with a light supplementing table. The side of the bottom plate is welded with a side plate, and the top of the side plate is welded with a top plate. One end of the top plate is integrally formed with an extension plate, and a vision camera is inserted at the bottom of the extension plate, and the vision camera is aligned with the center point of the bottom light supplementing table. One end of the surface of the light supplementing table is welded with a guiding roller. The top of the lifting mechanism is installed with an electric lifting rod, and the lifting mechanism is fixed below the top plate. The surface of the bottom plate is welded with a vertical plate, and a middle layer support component is installed inside the vertical plate. The surface of the middle layer support component is sleeved with an edge support component, and both the middle layer support component and the edge support component are installed in the middle position of the lifting mechanism. One end of the surface of the bottom plate is screwed with a winding guide roller.

[0006] Further, the detection and cleaning component includes a middle layer support component and an edge support component. The top of the vertical plate is welded with a front end plate, and the inner side of the side plate is welded with a rear end plate. The outer side of the vertical plate is screwed with a first motor.

[0007] Further, the front end plate and the rear end plate are in the same vertical plane, and both the front end plate and the rear end are perpendicular to the surfaces of the bottom plate and the top plate. Both ends of the middle layer support component and the edge support component are inserted into the interior of the front end plate or the rear end plate.

[0008] Further, the middle layer support component includes a bottom layer drive shaft, a first sponge brush and a first cam. One end of the bottom layer drive shaft is inserted into the output end of the first motor. A driven shaft is also inserted between the front end plate and the rear end plate. The surfaces of the driven shaft and the bottom layer drive shaft are both sleeved with a first sponge brush.

[0009] Further, the surface of the first sponge brush is embedded with a first cam. The surfaces of the driven shaft and the bottom layer drive shaft are key-connected with a first transmission gear set, and the surface of the first transmission gear set is sleeved with a first toothed belt.

[0010] Further, the edge support component includes a top layer drive shaft and an outer sleeve. The surface of the rear end plate is screwed with a second motor. The top layer drive shaft is inserted into the output end of the second motor. The surface of the top layer drive shaft is key-connected with a second transmission gear set.

[0011] Further, the surface of the second transmission gear set is sleeved with a second toothed belt. One end of the outer sleeve is sleeved with a second sponge brush, and the surface of the second sponge brush is embedded with a second cam. The surface of the outer sleeve is key-connected with a second transmission gear set.

[0012] Further, a third drive gear set is key-connected to the surface of the outer sleeve. A third toothed belt is sleeved on the surface of the third drive gear set. A docking bearing is embedded in the inner wall of the outer sleeve, and the docking bearing is sleeved on the surface of the bottom drive shaft or the driven shaft. The number of the outer sleeves is four, and both the bottom drive shaft and the driven shaft pass through the middle of two outer sleeves and the second sponge brush.

[0013] Further, the lifting mechanism includes a lifting plate and a traction pull rod. The bottom of the electric lifting rod is screwed to the surface of the lifting plate. The bottom end of the lifting plate is welded with a lifting frame. Both ends of the traction pull rod are embedded into the inner wall of the lifting frame through bearings.

[0014] Further, a gap is provided between two traction pull rods on the same vertical line. The plastic film to be tested passes through the inside of the gap, and the traction pull rod is used to pull up or press down the plastic film to be tested.

[0015] Advantages of the present invention:

[0016] After the plastic film quality detection device detects a stain on the surface of the plastic film through visual recognition, it can accurately control the subsequent detection and cleaning component to specifically remove the stain by judging the approximate position of the stain on the plastic film. The whole process does not require manual intervention, reducing the manual labor intensity and improving the detection and recognition efficiency.

[0017] During the process of removing the detected stain, the plastic film quality detection device will always provide a supporting effect on the plastic film around the stain. Therefore, while providing a high-intensity erasing effect, it also effectively reduces the vibration amplitude of the plastic film in the erasing area, thereby reducing the impact on the plastic film body and reducing the probability of deformation.

[0018] The plastic film quality detection device is used to remove stains identified in different areas on the surface of the plastic film through the middle layer support component and the edge support component respectively. And with the lifting mechanisms at both ends, it can directly lift the stain area, making impurities such as adhered dust present in a concave state. Therefore, the erasing pressure can be controlled, and the sponge brush during the erasing process can contact a larger area of the plastic film surface, expanding the single erasing range and avoiding the phenomenon that the plastic film in this area breaks due to too concentrated erasing area. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the outer shape of a plastic film quality detection device of the present invention;

[0020] Figure 2 It is a schematic structural diagram of the outer frame part of the detection device of the present invention;

[0021] Figure 3 This is a schematic structural diagram of the lifting mechanism part of the present invention;

[0022] Figure 4 This is a schematic structural diagram of the detection component part of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the middle - layer support component part of the present invention;

[0024] Figure 6 This is a schematic structural diagram of the edge support component part of the present invention;

[0025] Figure 7 This is a schematic diagram of the outer sleeve and partial connection of the edge support component of the present invention;

[0026] In the figure: 1, bottom plate; 2, top plate; 3, light - supplementing table; 4, winding guide roller; 5, lifting mechanism; 6, detection and cleaning component; 7, extension plate; 8, vision camera; 9, vertical plate; 10, front end plate; 11, lifting plate; 12, electric lifting rod; 13, lifting frame; 14, traction pull rod; 15, gap; 16, middle - layer support component; 17, edge support component; 18, first motor; 19, bottom - layer drive shaft; 20, first sponge brush; 21, first cam; 22, first transmission gear set; 23, first toothed belt; 24, rear end plate; 25, second motor; 26, top - layer drive shaft; 27, second transmission gear set; 28, outer sleeve; 29, third transmission gear set; 30, guide roller; 31, second toothed belt; 32, third toothed belt; 33, docking bearing; 34, second cam; 35, second sponge brush; 36, side plate; 37, driven shaft. Specific embodiments

[0027] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.

[0028] Please refer to Figures 1 to 7, the present invention provides the following technical solution: A plastic film quality detection device, including a detection device body. The detection device body includes a bottom plate 1, a light supplementing table 3, a lifting mechanism 5 and a detection and cleaning component 6. The surface of the bottom plate 1 is screwed with the light supplementing table 3. The side of the bottom plate 1 is welded with a side plate 36. The top of the side plate 36 is welded with a top plate 2. One end of the top plate 2 is integrally formed with an extension plate 7. A vision camera 8 is inserted at the bottom of the extension plate 7, and the vision camera 8 is aligned with the center point of the bottom light supplementing table 3. One end of the surface of the light supplementing table 3 is welded with a guiding roller 30. The top of the lifting mechanism 5 is installed with an electric lifting rod 12, and the lifting mechanism 5 is fixed below the top plate 2. The surface of the bottom plate 1 is welded with a vertical plate 9. The inner side of the vertical plate 9 is installed with a middle layer supporting component 16. The surface of the middle layer supporting component 16 is sleeved with an edge supporting component 17, and both the middle layer supporting component 16 and the edge supporting component 17 are installed at the middle position of the lifting mechanism 5. One end of the surface of the bottom plate 1 is screwed with a winding guide roller 4. This plastic film quality detection device is used to detect whether there are stains such as dust and impurities on the surface of the plastic film.

[0029] When the present invention is in use, the plastic film to be tested is wound around the top of the guiding roller 30 and then passes through the inside of the lifting mechanism 5, and then passes through the inside of the detection and cleaning component 6, and finally is wound by the winding guide roller 4 at the end. During this process, the plastic film to be tested will be laid on the surface of the light supplementing table 3. The light supplementing table 3 provides lighting and light supplement from the bottom, and the surface of the plastic film to be tested is photographed and identified by the vision camera 8 from the top. The image is processed by an image analysis software to detect flaws, calculate and analyze them to determine the size, position and type of the flaws. After detecting a stain during this process, judge the position of the stain on the surface of the plastic film to be tested, and then the detection and cleaning component 6 at the back end can be controlled to start two motors and the lifting mechanism 5 respectively to pull up or press down the area where the stain appears on the plastic film to be tested in sequence, and cooperate with a sponge brush to clean and remove the stained part. Among them, the vision camera 8 belongs to an existing mature technology. The scanning system for detecting and identifying stains and the subsequent supporting image analysis software processing software do not fall within the protection scope of the present invention, so their operating principles and identification and scanning processes are not described in detail here.

[0030] In this embodiment, the detection and cleaning component 6 includes a middle layer support component 16 and an edge support component 17. A front end plate 10 is welded to the top of the vertical plate 9, and a rear end plate 24 is welded to the inner side of the side plate 36. A first motor 18 is screwed to the outer side of the vertical plate 9. The front end plate 10 and the rear end plate 24 are on the same vertical plane, and both the front end plate 10 and the rear end are perpendicular to the surfaces of the bottom plate 1 and the top plate 2. Both ends of the middle layer support component 16 and the edge support component 17 are inserted into the interior of the front end plate 10 or the rear end plate 24. After detecting a stain on the surface of the plastic film through visual recognition, the approximate position of the stain on the plastic film can be judged, and then the subsequent detection and cleaning component 6 can be precisely controlled to specifically remove the stain. The whole process does not require manual intervention, reducing the labor intensity and improving the detection and recognition efficiency.

[0031] Specifically, after detecting and recognizing the stain through the vision camera 8, if it is found that the stain is in a position close to the middle of the plastic film to be tested, the middle support component is controlled to rotate continuously, and after the edge support component 17 controls the second cam 34 on the surface to point to the middle area, it stops running. In this state, the lifting mechanism 5 is controlled to rise and fall in sequence. After the surface of the plastic film to be tested contacts the surface of the second cam 34, the stain in the middle area can be wiped and cleaned by means of the continuous rotation of the middle layer support component 16. If the vision camera 8 recognizes that the stain is in a position close to the edge, on the contrary, the edge support component 17 is used for wiping treatment, and the middle layer support component 16 remains fixed to provide support.

[0032] In this embodiment, the middle layer support component 16 includes a bottom layer drive shaft 19, a first sponge brush 20 and a first cam 21. One end of the bottom layer drive shaft 19 is inserted into the output end of the first motor 18. A driven shaft 37 is also inserted between the front end plate 10 and the rear end plate 24. First sponge brushes 20 are sleeved on the surfaces of the driven shaft 37 and the bottom layer drive shaft 19. The first cam 21 is embedded on the surface of the first sponge brush 20. First transmission gear sets 22 are key-connected to the surfaces of the driven shaft 37 and the bottom layer drive shaft 19, and a first toothed belt 23 is sleeved on the surface of the first transmission gear sets 22. During the process of removing the detected stain, the plastic film around the stain is always supported, so while providing a high-strength wiping effect, the vibration amplitude of the plastic film in the wiping area is effectively reduced, thereby reducing the influence on the plastic film body and reducing the probability of deformation.

[0033] In this embodiment, the edge support assembly 17 includes a top layer drive shaft 26 and an outer sleeve 28. A second motor 25 is screwed on the surface of the rear end plate 24. The top layer drive shaft 26 is inserted into the output end of the second motor 25. A second transmission gear set 27 is key-connected to the surface of the top layer drive shaft 26. A second toothed belt 31 is sleeved on the surface of the second transmission gear set 27. A second sponge brush 35 is sleeved at one end of the outer sleeve 28, and a second cam 34 is embedded on the surface of the second sponge brush 35. A second transmission gear set 27 is key-connected to the surface of the outer sleeve 28. A third toothed belt 32 is sleeved on the surface of the third transmission gear set 29. A docking bearing 33 is embedded in the inner wall of the outer sleeve 28, and the docking bearing 33 is sleeved on the surface of the bottom layer drive shaft 19 or the driven shaft 37. The number of the outer sleeves 28 is four. The bottom layer drive shaft 19 and the driven shaft 37 both pass through the middle of two outer sleeves 28 and the second sponge brush 35.

[0034] Specifically, after the visual camera 8 detects and identifies the stain, if it is found that the stain is located near the middle of the plastic film to be tested, the second motor 25 is started at this time. Through the rotation of the top layer drive shaft 26 and the cooperation of the second transmission gear set 27, each outer sleeve 28 is pulled to rotate synchronously, and then the second sponge brush 35 connected to one end of each outer sleeve 28 and the second cam 34 on the second sponge brush 35 are rotated to point to the direction of the plastic film. In this state, whether the lifting mechanism 5 is controlled to rise or fall, the surface of the plastic film will be abutted against the fixed second cam 34. At this time, the first motor 18 is continuously started, and the bottom layer drive shaft 19 can be driven to rotate by the first motor 18, and then the bottom layer drive shaft 19 drives the driven shaft 37 to rotate by means of the first transmission gear set 22. Therefore, the first sponge brushes 20 on the bottom layer drive shaft 19 and the driven shaft 37 can wipe the stain on the plastic film through their continuous rotation. If the visual camera 8 identifies that the stain is located near the edge, on the contrary, the edge support assembly 17 is used for wiping treatment, and the middle layer support assembly 16 remains fixed to provide support. The entire process can ensure that there is a support area around the stain to provide a stable support effect.

[0035] In this embodiment, the lifting mechanism 5 includes a lifting plate 11 and a traction pull rod 14. The bottom of the electric lifting rod 12 is screwed to the surface of the lifting plate 11. The bottom end of the lifting plate 11 is welded with a lifting frame 13. Both ends of the traction pull rod 14 are embedded into the inner wall of the lifting frame 13 through bearings. A gap 15 is provided between two traction pull rods 14 that are on the same vertical line. The plastic film to be tested passes through the inside of the gap 15, and the traction pull rod 14 is used to pull up or press down the plastic film to be tested. The middle support assembly 16 and the edge support assembly 17 are respectively used to remove the stains identified on different areas of the plastic film surface. With the cooperation of the lifting mechanisms 5 at both ends, the stain area can be directly propped up, so that impurities such as adhered dust can present a concave state. Therefore, the pressure of wiping can be controlled, and the sponge brush during the wiping process can contact a larger area of the plastic film surface, expanding the range of single wiping and avoiding the phenomenon that the plastic film in this area breaks due to overly concentrated wiping areas.

[0036] Specifically, after the electric lifting rod 12 is started, the inner traction pull rod 14 can be pulled up or down by means of the lifting plate 11 and the lifting frame 13, and then the plastic film is pulled up or pressed down on both sides of the detection and cleaning assembly 6, so that the stain area can be pressed within the range of the detection and cleaning assembly 6, facilitating the above-mentioned targeted cleaning treatment of the stain area. During the normal detection process, when the vision camera 8 does not identify any stain problems, the plastic film directly passes through the inside of the gap 15 and does not contact the surface of any traction pull rod 14.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A plastic film quality inspection device, comprising an inspection device body, characterized in that: The detection device body includes a bottom plate (1), a light supplement table (3), a lifting mechanism (5), and a detection and cleaning component (6). The surface of the bottom plate (1) is screwed with the light supplement table (3). A side plate (36) is welded to the side of the bottom plate (1). A top plate (2) is welded to the top of the side plate (36). An extension plate (7) is integrally formed at one end of the top plate (2). A vision camera (8) is inserted at the bottom of the extension plate (7), and the vision camera (8) is aligned with the center point of the bottom light supplement table (3). A guiding roller (30) is welded to one end of the surface of the light supplement table (3). An electric lifting rod (12) is installed at the top of the lifting mechanism (5), and the lifting mechanism (5) is fixed below the top plate (2). A vertical plate (9) is welded to the surface of the bottom plate (1). A middle layer support component (16) is installed inside the vertical plate (9). An edge support component (17) is sleeved on the surface of the middle layer support component (16), and both the middle layer support component (16) and the edge support component (17) are installed at the middle position of the lifting mechanism (5). A winding guide roller (4) is screwed to one end of the surface of the bottom plate (1); The detection and cleaning component (6) includes a middle layer support component (16) and an edge support component (17). A front end plate (10) is welded to the top of the vertical plate (9). A rear end plate (24) is welded to the inside of the side plate (36). A first motor (18) is screwed to the outside of the vertical plate (9); The middle layer support component (16) includes a bottom layer drive shaft (19), a first sponge brush (20), and a first cam (21). One end of the bottom layer drive shaft (19) is inserted into the output end of the first motor (18). A driven shaft (37) is also inserted between the front end plate (10) and the rear end plate (24). The first sponge brushes (20) are sleeved on the surfaces of the driven shaft (37) and the bottom layer drive shaft (19). The first cams (21) are embedded on the surfaces of the first sponge brushes (20). A first transmission gear set (22) is key-connected to the surfaces of the driven shaft (37) and the bottom layer drive shaft (19), and a first toothed belt (23) is sleeved on the surface of the first transmission gear set (22); The edge support component (17) includes a top layer drive shaft (26) and an outer sleeve (28). A second motor (25) is screwed to the surface of the rear end plate (24). The top layer drive shaft (26) is inserted into the output end of the second motor (25). A second transmission gear set (27) is key-connected to the surface of the top layer drive shaft (26). A second toothed belt (31) is sleeved on the surface of the second transmission gear set (27). A second sponge brush (35) is sleeved on one end of the outer sleeve (28), and the second cams (34) are embedded on the surface of the second sponge brush (35). A second transmission gear set (27) is key-connected to the surface of the outer sleeve (28).

2. The quality inspection device for plastic film according to claim 1, wherein: The front end plate (10) and the rear end plate (24) are on the same vertical plane, and both the front end plate (10) and the rear end plate (24) are perpendicular to the surfaces of the bottom plate (1) and the top plate (2). Both ends of the middle layer support assembly (16) and the edge support assembly (17) are inserted into the interior of the front end plate (10) or the rear end plate (24).

3. A plastic film quality detection device according to claim 1, characterized in that: The lifting mechanism (5) includes a lifting plate (11) and a traction pull rod (14). The bottom of the electric lifting rod (12) is screwed to the surface of the lifting plate (11). The bottom end of the lifting plate (11) is welded with a lifting frame (13). Both ends of the traction pull rod (14) are embedded into the inner wall of the lifting frame (13) through bearings.

4. The quality inspection device for plastic film according to claim 3, wherein: A gap (15) is provided between two traction pull rods (14) on the same vertical line. The plastic film to be tested passes through the interior of the gap (15), and the traction pull rod (14) is used to pull up or press down the plastic film to be tested.

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