Wine bottle label pasting equipment for packaging of brewery

Abstract

The invention relates to the technical field of label pasting equipment, in particular to winebottle label pasting equipment for packaging in a brewery, which comprises a rack, a belt conveyor is arranged on the rack, a plurality of groups of limiting plates are fixedly connected to the outside of the belt conveyor, a fixing plate is fixedly connected to the rack, an electric push rod is fixedly connected to the fixing plate, and the electric push rod is fixedly connected to the rack. The output end of the electric push rod is fixedly connected with a push plate, the rack is fixedly connected with a gear box, the output end of the gear box is fixedly connected with a rotating plate, the rotating plate is fixedly connected with a plurality of containing frames, and the bottom of the rack is fixedly connected with a third motor. According to the wine bottle pasting device, the pasted wine bottles can be conveyed through the rotating plate, the pasted wine bottles can be detected through the detection system, when unqualified pasting is detected, the unqualified pasting can be pushed out through pushing of the electric push rod, and compared with traditional manual detection, the detection precision is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of pasting equipment, in particular to a wine bottle label pasting equipment for packaging in a winery. Background Art

[0002] In the modern wine industry, the quality of wine bottle label pasting has a vital impact on product image and brand recognition. However, traditional pasting equipment does not have an inspection function, and cannot inspect the pasted wine bottles and screen out unqualified pasting. Therefore, traditional label pasting inspection mainly relies on manual visual inspection, which has many disadvantages.

[0003] Manual inspection is inefficient, and long-term visual fatigue can easily lead to missed inspections or misjudgments by inspectors, which cannot meet the needs of fast and accurate inspections on large-scale production lines. In addition, it is difficult to achieve complete standardization of manual inspection standards, and different inspectors may have different judgments on whether the label is qualified, which makes it difficult to ensure the stability of product quality. Summary of the invention

[0004] In view of the technical problems mentioned in the background technology, the present invention provides a wine bottle label sticking device for winery packaging.

[0005] The technical solution adopted by the present invention is: a wine bottle label pasting equipment for winery packaging, comprising a frame, a belt conveyor is provided on the frame, a plurality of limit plates are fixedly connected to the outside of the belt conveyor, a fixed plate is fixedly connected to the frame, an electric push rod is fixedly connected to the fixed plate, the output end of the electric push rod is fixedly connected to a push plate, a gear box is fixedly connected to the frame, a rotating plate is fixedly connected to the output end of the gear box, a plurality of accommodating frames are fixedly connected to the rotating plate, a third motor is fixedly connected to the bottom of the frame, a synchronous wheel is fixedly connected to the output end of the motor and the input end of the gear box, a synchronous wheel is externally sleeved with a synchronous belt, a pasting unit is also provided on the frame, a detection system is provided on the frame, and the detection system is used to detect the pasted wine bottles.

[0006] In one embodiment, the pasting unit includes a mounting base arranged on a frame, a label roller rotatably connected to the mounting base, and a winding roller, the frame is rotatably connected to multiple groups of guide rollers, the outside of the frame is fixedly connected to a support plate, the outside of the frame is fixedly connected to a side frame, the side frame is fixedly connected to a fourth cylinder, the output end of the fourth cylinder is fixedly connected to a fifth cylinder, and the output end of the fifth cylinder is fixedly connected to a pressing base; the outside of the mounting base is fixedly connected to a second cylinder, and the output end of the second cylinder is fixedly connected to a pressure plate.

[0007] In one of the embodiments, the outside of the mounting seat is fixedly connected to a third cylinder, the output end of the third cylinder is fixedly connected to an adjustment seat, and the outside of the adjustment seat is rotatably connected to multiple groups of steering rollers.

[0008] In one embodiment, the outside of the mounting seat is fixedly connected to a second motor, the outside of the mounting seat is rotatably connected to multiple sets of second pulleys, the output end of the second motor is fixedly connected to the first pulley, belts are sleeved between the first pulley and the second pulley and between two adjacent second pulley brackets, and the second pulley is coaxially fixedly connected to the corresponding guide roller and winding roller.

[0009] In one embodiment, a first fixed seat is fixedly connected to the frame, a second slide rail is fixedly connected to the top of the first fixed seat, a second slider is slidably connected to the outside of the second slide rail, the second slider is fixedly connected to the mounting seat, a nut block is fixedly connected to the bottom of the first fixed seat, a second fixed seat is fixedly connected to the frame, a screw rod is rotatably connected to the second fixed seat, the screw rod is threadedly connected to the nut block, and a hand wheel is fixedly connected to the outside of the screw rod.

[0010] In one embodiment, the frame is fixedly connected to a fixing frame, the fixing frame is fixedly connected to a mounting frame, the mounting frame is fixedly connected to a first motor on the outside, the output end of the first motor is fixedly connected to a threaded rod, the outside of the threaded rod is threadedly connected to a nut seat, and the outside of the nut seat is fixedly connected to a first cylinder, the output end of the first cylinder is fixedly connected to a mounting plate, the outside of the mounting plate is fixedly connected to an electric clamp, the outside of the mounting frame is fixedly connected to a first slide rail, the outside of the first slide rail is slidably connected to a first slider, and the first slider is fixedly connected to the first cylinder.

[0011] In one embodiment, the frame is fixedly connected to a vertical frame, the vertical frame is fixedly connected to a sixth cylinder, the output end of the sixth cylinder is fixedly connected to a U-shaped seat, the middle of the U-shaped seat is rotatably connected to two groups of extrusion rollers, the outside of the U-shaped seat is fixedly connected to a driving machine, and the output end of the driving machine is fixedly connected to the extrusion rollers.

[0012] In one embodiment, the detection system includes an industrial camera fixedly connected to the outside of a fixed plate, a data analysis module, a feature analysis module, and a determination module.

[0013] In one of the embodiments, after receiving the image captured by the industrial camera, the data analysis module first performs image preprocessing, and uses a median filtering algorithm to remove the noise in the image;

[0014] And the median filter formula is:

[0015] g(x,y)=Median{f(xk,yl),(k,l∈W)}

[0016] Among them, f(x, y) is the original image pixel value, g(x, y) is the filtered image pixel value, W is the filter window, and the median of the pixel values ​​in the filter window is taken as the new value of the central pixel to remove the salt and pepper noise interference, and then the image is grayed to convert the color image into a grayscale image;

[0017] Then the weighted average method is used for grayscale conversion, the formula is:

[0018] Gray(x,y)=0.299×R(x,y)+0.587×G(x,y)+0.114×B(x,y)

[0019] Among them, R(x,y), G(x,y), B(x,y) are the red, green, and blue channel values ​​of the pixel point (x,y) in the color image, and Gray(x,y) is the grayscale value;

[0020] The threshold segmentation algorithm is used to separate the label image from the background. By analyzing the grayscale histogram of the image, the threshold T is determined and the image pixels are divided into two categories: label pixels and background pixels.

[0021] The formula is:

[0022]

[0023] Among them, g(x,y) is the binary image after segmentation, 1 represents the label pixel, and 0 represents the background pixel;

[0024] For the segmented label image, the Canny edge detection algorithm is used to extract the edge contour of the label. The Canny edge detection calculates the gradient amplitude and direction of the image, and then applies non-maximum suppression and double threshold detection to obtain an accurate edge image. The gradient amplitude calculation formula is:

[0025]

[0026] Among them, G x and G y They are the gradient components of the image in the x and y directions, respectively, which are calculated by the Sobel operator, etc.

[0027] The feature analysis module calculates the position and angle information of the label on the wine bottle according to the extracted label edge contour. The specific steps are as follows:

[0028] First, the edge contour of the label is fitted into a rectangle by the least squares method, and the center coordinates of the rectangle (x c ,y c), the coordinate is the center position of the label;

[0029] Then, the angle θ between the long axis of the rectangle and the preset standard direction is calculated, which is the pasting angle of the label;

[0030] Let the coordinates of the point on the label edge contour be (x i ,y i ), the equation of the fitted rectangle is Ax+By+C=0, then the parameters A, B, C are solved by the least square method, and then the center coordinates and angle are obtained;

[0031] The grayscale information of the image is used to analyze the flatness of the label and its fit with the bottle. For flatness detection, the variance σ of the grayscale value on the label surface is calculated. 2 ,The larger the variance, the greater the change in grayscale value, that is, the more uneven the label surface is;

[0032] The formula is:

[0033]

[0034] Among them, Gray i is the gray value of the i-th pixel in the label image, is the average gray value of the label image, and n is the total number of pixels in the label image.

[0035] In one embodiment, the determination module sets various determination criteria for label pasting quality according to product quality requirements and industry standards, and the specific steps are as follows:

[0036] The weighted scoring method is used for comprehensive judgment, and different weights are given to each indicator such as position, angle, flatness, fit and firmness. 1 、w 2 、w 3 、w 4 、w 5 (The total weight is 1), and the indicators are scored according to their compliance with the standards, with 10 points for full compliance, 8 points for slight deviation, 5 points for large deviation, and 0 points for serious non-compliance;

[0037] Then calculate the comprehensive score S: S = w 1 S 1 +w 2 S 2 +w 3 S 3 +w 4 S 4 +w 5 S 5 Among them, S 1 , S 2 , S 3 , S4 , S 5 The scores for position, angle, flatness, fit and firmness are as follows. If the comprehensive score S is lower than the set passing score S q , then the label pasting is judged to be unqualified, otherwise it is qualified.

[0038] The beneficial effects of the present invention are:

[0039] 1. Compared with the prior art, in the present invention, labels can be pasted on wine bottles through the pasting unit, the pasted wine bottles can be transported through the rotating plate, and the pasted wine bottles can be inspected through the detection system. When unqualified pasting is detected, it can be pushed out by the electric push rod. Compared with traditional manual detection, the detection accuracy is greatly improved.

[0040] 2. Compared with the prior art, the present invention uses industrial cameras for image acquisition and precise image analysis algorithms to accurately detect multiple key indicators such as label position, angle, flatness, fit and firmness. The parameter adjustability of the detection system and the versatility of the image analysis algorithm enable it to adapt to the detection of wine bottle labels of different shapes, sizes, materials and packaging designs. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 It is a schematic diagram of the structure of the present invention;

[0042] Figure 2 It is a schematic diagram of the axonometric structure of the present invention;

[0043] Figure 3 It is a structural schematic diagram of the rack in the present invention;

[0044] Figure 4 It is a schematic diagram of the top view of the structure of the present invention;

[0045] Figure 5 It is a structural schematic diagram of the mounting seat in the present invention;

[0046] Figure 6 yes Figure 2 Schematic diagram of the enlarged structure of the A area in the middle;

[0047] Figure 7 yes Figure 5 Schematic diagram of the enlarged structure of the middle B area;

[0048] Figure 8 yes Figure 2 Schematic diagram of the enlarged structure of the C area in the middle.

[0049] The markings in the figure are:

[0050] 100, rack;

[0051] 200, belt conveyor; 2001, limit plate;

[0052] 300, fixed plate; 3001, electric push rod; 3002, push plate; 3003, industrial camera;

[0053] 400, fixing frame; 4001, mounting frame; 4002, threaded rod; 4003, first motor; 4004, first slide rail; 4005, first slider; 4006, first cylinder; 4007, mounting plate; 4008, electric gripper;

[0054] 500, mounting seat; 5001, label roller; 5002, guide roller; 5003, second cylinder; 5004, pressing plate; 5005, third cylinder; 5006, adjusting seat; 5007, steering roller; 5008, winding roller; 5009, supporting plate; 50010, side frame; 50011, fourth cylinder; 50012, fifth cylinder; 50013, pressing seat; 50014, second motor; 50015, first pulley; 50016, second pulley; 50017, belt; 50018, first fixed seat; 50019, second slide rail; 50020, second slider; 50021, nut block; 50022, screw rod; 50023, second fixed seat; 50024, hand wheel;

[0055] 600, stand; 6001, sixth cylinder; 6002, U-shaped seat; 6003, extrusion roller;

[0056] 700, gear box; 7001, rotating plate; 7002, containing frame; 7003, third motor; 7004, synchronous wheel; 7005, synchronous belt. DETAILED DESCRIPTION

[0057] In the description of the present invention, it should be noted that the orientations or positional relationships indicated by terms such as “front”, “up”, “down”, “left”, “right”, “vertical” and “horizontal” are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] The following is combined with Figure 1-8 The present invention is further described.

[0060] In order to solve the problems existing in the background technology, the present application proposes the following technical solutions: a wine bottle label sticking equipment for winery packaging, comprising a frame 100, on which a belt conveyor 200 is provided, and the outside of the belt conveyor 200 is fixedly connected with multiple groups of limiting plates 2001 for limiting the wine bottles, and a fixed plate 300 is fixedly connected to the frame 100, and an electric push rod 3001 is fixedly connected to the fixed plate 300, and a push plate 3002 is fixedly connected to the output end of the electric push rod 3001, and unqualified wine bottles are pushed out by the push of the electric push rod 3001, and a storage box for collecting unqualified wine bottles is provided on the frame 100.

[0061] In this embodiment, a gear box 700 is also fixedly connected to the frame 100, and a rotating plate 7001 is fixedly connected to the output end of the gear box 700. A plurality of accommodating frames 7002 are fixedly connected to the rotating plate 7001. A third motor 7003 is fixedly connected to the bottom of the frame 100. A synchronous wheel 7004 is fixedly connected to the output end of the motor and the input end of the gear box 700. A synchronous belt 7005 is provided on the outer sleeve of the synchronous wheel 7004. The gear box 700 is driven to work by the third motor 7003, thereby driving the rotating plate 7001 to rotate, thereby adjusting the position of the wine bottle.

[0062] In a further design, a pasting unit is also provided on the frame 100, and a detection system is provided on the frame 100, and the detection system is used to detect the pasted wine bottles.

[0063] Among them, the pasting unit includes a mounting base 500 arranged on the frame 100, a label roller 5001 rotatably connected to the mounting base 500, and a winding roller 5008. The frame 100 is rotatably connected to multiple groups of guide rollers 5002, the guide rollers 5002 are used to guide the release paper, the label roller 5001 is wound with the release paper with the label, and the outside of the frame 100 is fixedly connected to a support plate 5009, the outside of the frame 100 is fixedly connected to a side frame 50010, the side frame 50010 is fixedly connected to a fourth cylinder 50011, the output end of the fourth cylinder 50011 is fixedly connected to a fifth cylinder 50012, and the output end of the fifth cylinder 50012 is fixedly connected to a pressing base 50013; the outside of the mounting base 500 is fixedly connected to a second cylinder 5003, the output end of the second cylinder 5003 is fixedly connected to a pressing plate 5004, and the pressing plate 5004 is used to press the release paper.

[0064] In order to facilitate replacement, the label roller 5001 and the winding roller 5008 are both detachably connected.

[0065] The outside of the mounting seat 500 is fixedly connected to a third cylinder 5005, the output end of the third cylinder 5005 is fixedly connected to an adjustment seat 5006, and the outside of the adjustment seat 5006 is rotatably connected to multiple groups of steering rollers 5007, which are used to guide the release paper.

[0066] Among them, the outside of the mounting seat 500 is fixedly connected to a second motor 50014, and the outside of the mounting seat 500 is rotatably connected to multiple sets of second pulleys 50016. The output end of the second motor 50014 is fixedly connected to the first pulley 50015. A belt 50017 is sleeved between the first pulley 50015 and the second pulley 50016 and between two adjacent second pulley 50016 brackets. The second pulley 50016 is coaxially fixedly connected to the corresponding guide roller 5002 and the winding roller 5008. The second motor 50014 drives the winding roller 5008 to rotate. After the release paper is guided by the guide roller 5002 and the steering roller 5007, it is wound by the winding roller 5008, so that the torn label is exposed at one end of the support plate 5009. Subsequently, the pressing seat 50013 is driven downward by the fifth cylinder 50012, so that the label can be adhered to the outside of the wine bottle.

[0067] Among them, a first fixed seat 50018 is fixedly connected to the frame 100, a second slide rail 50019 is fixedly connected to the top of the first fixed seat 50018, a second slider 50020 is slidably connected to the outside of the second slide rail 50019, the second slider 50020 is fixedly connected to the mounting seat 500, a nut block 50021 is fixedly connected to the bottom of the first fixed seat 50018, a second fixed seat 50023 is fixedly connected to the frame 100, a screw rod 50022 is rotatably connected to the second fixed seat 50023, the screw rod 50022 is threadedly connected to the nut block 50021, a hand wheel 50024 is fixedly connected to the outside of the screw rod 50022, and the mounting seat 500 can be positioned by rotating the screw rod 50022.

[0068] The frame 100 is fixedly connected with a fixing frame 400, the fixing frame 400 is fixedly connected with a mounting frame 4001, the outside of the mounting frame 4001 is fixedly connected with a first motor 4003, the output end of the first motor 4003 is fixedly connected with a threaded rod 4002, the outside of the threaded rod 4002 is threadedly connected with a nut seat, and the outside of the nut seat is fixedly connected with a first cylinder 4006, the output end of the first cylinder 4006 is fixedly connected with a mounting plate 4007, and the outside of the mounting plate 4007 is fixedly connected with a first motor 4003. An electric clamp 4008 is fixedly connected, the outside of the mounting frame 4001 is fixedly connected to a first slide rail 4004, the outside of the first slide rail 4004 is slidably connected to a first slider 4005, the first slider 4005 is fixedly connected to the first cylinder 4006, and the threaded rod 4002 is driven to rotate by the first motor 4003, so that the first cylinder 4006 slides, allowing the wine bottle to correspond to the belt conveyor 200, and then the wine bottle is dropped so that the wine bottle is located between two adjacent limit plates 2001.

[0069] Among them, the frame 100 is fixedly connected to the stand 600, the stand 600 is fixedly connected to the sixth cylinder 6001, the output end of the sixth cylinder 6001 is fixedly connected to the U-shaped seat 6002, the middle of the U-shaped seat 6002 is rotatably connected to two groups of squeezing rollers 6003, the outside of the U-shaped seat 6002 is fixedly connected to a driving machine, the output end of the driving machine is fixedly connected to the squeezing roller 6003, and the third motor 7003 drives the rotating plate 7001 to rotate, so that the pasted wine bottle is transported to the bottom of the sixth cylinder 6001, and the sixth cylinder 6001 drives the U-shaped seat 6002 to move downward, so that the squeezing roller 6003 contacts the wine bottle, so that the label can be more firmly pasted on the outside of the wine bottle, and at the same time, the squeezing roller 6003 can be driven by the driving machine to rotate one circle to smooth the label.

[0070] In a further design, the detection system includes an industrial camera 3003 fixedly connected to the outside of the fixed plate 300, a data analysis module, a feature analysis module and a determination module.

[0071] After the data analysis module receives the image captured by the industrial camera 3003, it first performs image preprocessing. For the noise in the image, the median filter algorithm is used to remove it; and the median filter formula is:

[0072] g(x,y)=Median{f(xk,yl),(k,l∈W)}

[0073] Among them, f(x, y) is the original image pixel value, g(x, y) is the filtered image pixel value, W is the filter window, and the median of the pixel values ​​in the filter window is taken as the new value of the central pixel to remove the salt and pepper noise interference, and then the image is grayed to convert the color image into a grayscale image;

[0074] Then the weighted average method is used for grayscale conversion, the formula is:

[0075] Gray(x,y)=0.299×R(x,y)+0.587×G(x,y)+0.114×B(x,y)

[0076] Among them, R(x,y), G(x,y), B(x,y) are the red, green, and blue channel values ​​of the pixel point (x,y) in the color image, and Gray(x,y) is the grayscale value;

[0077] The threshold segmentation algorithm is used to separate the label image from the background. By analyzing the grayscale histogram of the image, the threshold T is determined and the image pixels are divided into two categories: label pixels and background pixels.

[0078] The formula is:

[0079]

[0080] Among them, g(x,y) is the binary image after segmentation, 1 represents the label pixel, and 0 represents the background pixel;

[0081] For the segmented label image, the Canny edge detection algorithm is used to extract the edge contour of the label. The Canny edge detection calculates the gradient amplitude and direction of the image, and then applies non-maximum suppression and double threshold detection to obtain an accurate edge image. The gradient amplitude calculation formula is:

[0082]

[0083] Among them, G x and G y They are the gradient components of the image in the x and y directions, respectively, which are calculated by the Sobel operator, etc.

[0084] The feature analysis module calculates the position and angle information of the label on the wine bottle based on the extracted label edge contour. The specific steps are as follows:

[0085] First, the edge contour of the label is fitted into a rectangle by the least squares method, and the center coordinates of the rectangle (x c ,y c ), the coordinate is the center position of the label;

[0086] Then, the angle θ between the long axis of the rectangle and the preset standard direction is calculated, which is the pasting angle of the label;

[0087] Let the coordinates of the point on the label edge contour be (x i ,y i), the equation of the fitted rectangle is Ax+By+C=0, then the parameters A, B, C are solved by the least square method, and then the center coordinates and angle are obtained;

[0088] The grayscale information of the image is used to analyze the flatness of the label and its fit with the bottle. For flatness detection, the variance σ of the grayscale value on the label surface is calculated. 2 ,The larger the variance, the greater the change in grayscale value, that is, the more uneven the label surface is;

[0089] The formula is:

[0090]

[0091] Among them, Gray i is the gray value of the i-th pixel in the label image, is the average gray value of the label image, and n is the total number of pixels of the label image;

[0092] Although it is difficult to directly measure the sticking firmness of the label, it can be indirectly judged by detecting scratches and wear on the label surface. Analyze whether there are abnormal texture or color changes in the label image, which may be caused by friction or external force on the label. For example, by calculating the texture feature parameters of the image, such as the energy and contrast of the grayscale co-occurrence matrix. If these indicators are beyond the normal range, it indicates that the label may not be firmly attached.

[0093] The determination module sets various determination criteria for label pasting quality according to product quality requirements and industry standards. The specific steps are as follows:

[0094] For example: the label center position deviation Δx and Δy shall not exceed ±1mm, the pasting angle deviation Δθ shall not exceed ±2°, and the flatness variance σ 2 Must not exceed a certain threshold T f , the gradient change rate of the fit degree shall not exceed k f Etc. Compare the feature values ​​of the tags obtained by the feature analysis module with these judgment criteria.

[0095] The weighted scoring method is used for comprehensive judgment, and different weights are given to each indicator such as position, angle, flatness, fit and firmness. 1 、w 2 、w 3 、w 4 、w 5 (The total weight is 1), and the indicators are scored according to their compliance with the standards, with 10 points for full compliance, 8 points for slight deviation, 5 points for large deviation, and 0 points for serious non-compliance;

[0096] Then calculate the comprehensive score S: S = w 1 S1 +w 2 S 2 +w 3 S 3 +w 4 S 4 +w 5 S 5 Among them, S 1 , S 2 , S 3 , S 4 , S 5 The scores for position, angle, flatness, fit and firmness are as follows. If the comprehensive score S is lower than the set passing score S q , then the label pasting is judged to be unqualified, otherwise it is qualified.

[0097] In order for those skilled in the art to fully understand the technical solution, the method of using this embodiment is as follows:

[0098] First, the wine bottle with the label is placed in the receiving frame 7002, and the gear box 700 is driven by the third motor 7003 to work, so that the wine bottle with the label is transported to the bottom of the fifth cylinder 50012;

[0099] Subsequently, the release paper with the label attached is wound around the outside of the label roller 5001, and the second motor 50014 is started to work, and the second motor 50014 drives the winding roller 5008 to rotate. After the release paper is guided by the guide roller 5002 and the steering roller 5007, the release paper is wound by the winding roller 5008, so that the torn label is exposed at one end of the support plate 5009. Subsequently, the pressing seat 50013 is driven downward by the fifth cylinder 50012, so that the label can be adhered to the outside of the wine bottle.

[0100] Then, the third motor 7003 drives the rotating plate 7001 to rotate, so that the wine bottle after pasting is transported to the bottom of the sixth cylinder 6001, and the sixth cylinder 6001 drives the U-shaped seat 6002 to move downward, so that the squeezing roller 6003 contacts the wine bottle, so that the label can be more firmly pasted on the outside of the wine bottle. At the same time, the squeezing roller 6003 can be driven by the driving machine to rotate one circle to smooth the label.

[0101] The third motor 7003 drives the rotating plate 7001 to rotate, and the pasted wine bottle is transported to the bottom of the electric clamp 4008. After the electric clamp 4008 clamps the wine bottle, the first motor 4003 drives the threaded rod 4002 to rotate, so that the first cylinder 4006 slides, and the wine bottle is placed on the belt conveyor 200. Then, the wine bottle is dropped and placed between two adjacent limit plates 2001.

[0102] The wine bottles are transported by the belt conveyor 200, and then the wine bottles after pasting are inspected by the detection system to determine whether the pasting is qualified. Unqualified wine bottles are pushed out by the electric push rod 3001;

[0103] Therefore, in this embodiment, through the image acquisition of the industrial camera 3003 and the accurate image analysis algorithm, multiple key indicators such as the position, angle, flatness, fit and firmness of the label can be accurately detected. Compared with traditional manual detection, the detection accuracy is greatly improved, and the parameter adjustability of the detection system and the versatility of the image analysis algorithm enable it to adapt to the detection of wine bottle labels of different shapes, sizes, materials and packaging designs.

[0104] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0105] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wine bottle label pasting device for winery packaging, comprising a frame (100), characterized in that: The frame (100) is provided with a belt conveyor (200), the outside of the belt conveyor (200) is fixedly connected to a plurality of limit plates (2001), the frame (100) is fixedly connected to a fixing plate (300), the fixing plate (300) is fixedly connected to an electric push rod (3001), the output end of the electric push rod (3001) is fixedly connected to a push plate (3002), the frame (100) is fixedly connected to a gear box (700), the output end of the gear box (700) is fixedly connected to a gear The rotating plate (7001) is fixedly connected to a plurality of accommodating frames (7002), the bottom of the frame (100) is fixedly connected to a third motor (7003), the output end of the motor and the input end of the gear box (700) are both fixedly connected to a synchronous wheel (7004), the outer sleeve of the synchronous wheel (7004) is provided with a synchronous belt (7005), the frame (100) is also provided with a pasting unit, and the frame (100) is provided with a detection system, and the detection system is used to detect the wine bottles after pasting.

2. The wine bottle label sticking equipment for winery packaging according to claim 1 is characterized in that: The pasting unit comprises a mounting seat (500) arranged on a frame (100), a label roller (5001) rotatably connected to the mounting seat (500), and a winding roller (5008); a plurality of guide rollers (5002) are rotatably connected to the frame (100); a support plate (5009) is fixedly connected to the outside of the frame (100); a side frame (50010) is fixedly connected to the outside of the frame (100); a fourth cylinder (50011) is fixedly connected to the side frame (50010); an output end of the fourth cylinder (50011) is fixedly connected to a fifth cylinder (50012); an output end of the fifth cylinder (50012) is fixedly connected to a pressing seat (50013); a second cylinder (5003) is fixedly connected to the outside of the mounting seat (5000); and a pressing plate (5004) is fixedly connected to the output end of the second cylinder (5003).

3. The wine bottle label sticking equipment for winery packaging according to claim 2 is characterized in that: The outside of the mounting seat (500) is fixedly connected to a third cylinder (5005), the output end of the third cylinder (5005) is fixedly connected to an adjustment seat (5006), and the outside of the adjustment seat (5006) is rotatably connected to multiple groups of steering rollers (5007).

4. The wine bottle label sticking equipment for winery packaging according to claim 3 is characterized in that: The outside of the mounting seat (500) is fixedly connected to a second motor (50014), and the outside of the mounting seat (500) is rotatably connected to multiple sets of second pulleys (50016). The output end of the second motor (50014) is fixedly connected to a first pulley (50015), and belts (50017) are sleeved between the first pulley (50015) and the second pulley (50016) and between two adjacent second pulley (50016) brackets. The second pulley (50016) is coaxially fixedly connected to the corresponding guide roller (5002) and the winding roller (5008).

5. The wine bottle label sticking equipment for winery packaging according to claim 4 is characterized in that: The frame (100) is fixedly connected with a first fixed seat (50018), the top of the first fixed seat (50018) is fixedly connected with a second slide rail (50019), the outside of the second slide rail (50019) is slidably connected with a second slider (50020), the second slider (50020) is fixedly connected with the mounting seat (5000), the bottom of the first fixed seat (50018) is fixedly connected with a nut block (50021), the frame (100) is fixedly connected with a second fixed seat (50023), the second fixed seat (50023) is rotatably connected with a screw rod (50022), the screw rod (50022) is threadedly connected to the nut block (50021), and the outside of the screw rod (50022) is fixedly connected with a hand wheel (50024).

6. The wine bottle label sticking equipment for winery packaging according to claim 5 is characterized in that: The frame (100) is fixedly connected to a fixing frame (400), the fixing frame (400) is fixedly connected to a mounting frame (4001), the mounting frame (4001) is fixedly connected to a first motor (4003) on the outside, the output end of the first motor (4003) is fixedly connected to a threaded rod (4002), the threaded outer portion of the threaded rod (4002) is threadedly connected to a nut seat, and the outer portion of the nut seat is fixedly connected to a first cylinder (4006), the output end of the first cylinder (4006) is fixedly connected to a mounting plate (4007), the outer portion of the mounting plate (4007) is fixedly connected to an electric clamp (4008), the outer portion of the mounting frame (4001) is fixedly connected to a first slide rail (4004), the outer portion of the first slide rail (4004) is slidably connected to a first slider (4005), and the first slider (4005) is fixedly connected to the first cylinder (4006).

7. The wine bottle label sticking equipment for winery packaging according to claim 6 is characterized in that: The frame (100) is fixedly connected to a stand (600), the stand (600) is fixedly connected to a sixth cylinder (6001), the output end of the sixth cylinder (6001) is fixedly connected to a U-shaped seat (6002), the middle of the U-shaped seat (6002) is rotatably connected to two groups of squeezing rollers (6003), the outside of the U-shaped seat (6002) is fixedly connected to a driving machine, and the output end of the driving machine is fixedly connected to the squeezing rollers (6003).

8. The wine bottle label sticking equipment for winery packaging according to claim 1 is characterized in that: The detection system comprises an industrial camera (3003) fixedly connected to the outside of a fixed plate (300), a data analysis module, a feature analysis module and a determination module.

9. The wine bottle label sticking equipment for winery packaging according to claim 8, characterized in that: After receiving the image captured by the industrial camera (3003), the data analysis module first performs image preprocessing and uses a median filter algorithm to remove noise in the image; And the median filter formula is: g(x, y)=Median{f(xk, y-1), (k, l∈W)} Where f(x, y) is the original image pixel value, g(x, y) is the filtered image pixel value, W is the filter window, and the salt and pepper noise interference is removed by taking the median of the pixel values ​​in the filter window as the new value of the center pixel. Then, the image is grayed to convert the color image into a grayscale image. Then the weighted average method is used for grayscale conversion, the formula is: Gray(x,y)=0.299×R(x,y)+0.587×G(x,y)+0.114×B(x,y) Among them, R(x, y), G(x, y), B(x, y) are the red, green, and blue channel values ​​of the pixel point (x, y) in the color image, and Gray(x, y) is the grayscale value; The threshold segmentation algorithm is used to separate the label image from the background. By analyzing the grayscale histogram of the image, the threshold T is determined and the image pixels are divided into two categories: label pixels and background pixels. The formula is: Among them, g(x,y) is the binary image after segmentation, 1 represents the label pixel, and 0 represents the background pixel; For the segmented label image, the Canny edge detection algorithm is used to extract the edge contour of the label. The Canny edge detection calculates the gradient amplitude and direction of the image, and then applies non-maximum suppression and double threshold detection to obtain an accurate edge image. The gradient amplitude calculation formula is: Among them, G x and G y They are the gradient components of the image in the x and y directions, respectively, which are calculated by the Sobel operator, etc. The feature analysis module calculates the position and angle information of the label on the wine bottle according to the extracted label edge contour. The specific steps are as follows: First, the edge contour of the label is fitted into a rectangle by the least squares method, and the center coordinates of the rectangle (x c ,y c ), the coordinate is the center position of the label; Then, the angle θ between the long axis of the rectangle and the preset standard direction is calculated, which is the pasting angle of the label; Let the coordinates of the point on the label edge contour be (x i ,y i ), the equation of the fitted rectangle is Ax+By+C=0, then the parameters A, B, C are solved by the least square method, and then the center coordinates and angle are obtained; The grayscale information of the image is used to analyze the flatness of the label and its fit with the bottle. For flatness detection, the variance σ of the grayscale value on the label surface is calculated. 2 ,The larger the variance, the greater the change in grayscale value, that is, the more uneven the label surface is; The formula is: Among them, Gray i is the gray value of the i-th pixel in the label image, is the average gray value of the label image, and n is the total number of pixels in the label image.

10. The wine bottle label sticking equipment for winery packaging according to claim 9, characterized in that: The determination module sets various determination criteria for label pasting quality according to product quality requirements and industry standards. The specific steps are as follows: A weighted scoring method is used for comprehensive judgment. Different weights w1, w2, w3, w4, w5 (the total weight is 1) are assigned to each indicator such as position, angle, flatness, fit and firmness. Scoring is performed based on the degree of compliance between the indicator and the standard. Full compliance is scored as 10 points, slight deviation is scored as 8 points, large deviation is scored as 5 points, and serious non-compliance is scored as 0 points. Then calculate the comprehensive score S: S = w1S1 + w2S2 + w3S3 + w4S4 + w5S5, where S1, S2, S3, S4, S5 are the scores of position, angle, flatness, fit and firmness respectively. If the comprehensive score S is lower than the set passing score S q , then the label pasting is judged to be unqualified, otherwise it is qualified.

Images