Transparent glass wine bottle label detection device

Abstract

The utility model discloses a transparent glass wine bottle label detection device, which belongs to the field of wine bottle detection equipment and comprises an incoming material conveying line and a detection tool, a first positioning mechanism is arranged on one side of the output end of the incoming material conveying line, and a bottle feeding mechanism is used for transferring wine bottles from the incoming material conveying line to the first positioning mechanism. The first transfer mechanism is used for placing a wine bottle on the detection tool, the first transfer mechanism clamps a bottle opening of the wine bottle and drives a bottle body to rotate around a horizontal axis, the bottle body of the wine bottle is inclined and placed in the detection tool with a label facing upwards, and the first visual detection unit is arranged over the detection tool; an industrial camera in the first visual detection unit is vertically arranged downwards, the second transfer mechanism places the wine bottles to the bottle discharging mechanism, and the bottle discharging mechanism transfers the wine bottles to the discharging conveying line. According to the scheme, the shooting angle of the first visual inspection unit is adjusted to achieve machine visual inspection of transparent glass wine bottle trademarks, and the detection quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wine bottle testing equipment, and more specifically, to a transparent glass wine bottle label testing device. Background Technology

[0002] In modern alcohol production, labels are affixed to the bottles, displaying various trademarks and logos such as manufacturer logos and product series identifiers. Current labeling processes typically involve manual labeling, fully automated labeling machines, or a semi-automatic combination of manual and machine methods. Inevitably, some quality issues arise during the labeling process, such as labels being applied at an angle, missing labels, or labels being applied backwards.

[0003] To address the aforementioned technical issues, a quality inspection station is typically set up in the labeling process to check the labeling quality. Relying on manual inspection is highly susceptible to the skill level of the inspectors, inevitably leading to inadequate inspections. Machine vision, combined with appropriate automated equipment, can improve labeling quality inspection efficiency and reduce labor costs. Baijiu (Chinese liquor) bottles are made of various materials, such as glass, ceramic, and metal, and their shapes and heights vary considerably. For transparent bottles, directly photographing them with machine vision results in severe glare when the machine vision is pointing directly at the bottle label, hindering subsequent data processing within the machine vision system to determine labeling quality.

[0004] A search revealed Chinese patent application number 201811191341.6, which discloses a bottle label detection device. This device includes a spiral conveyor mechanism for driving the bottle to move at equal intervals. A first visual detection mechanism is located at the input end of the spiral conveyor mechanism, and a second visual detection mechanism is located downstream of the spiral conveyor mechanism. The first visual detection mechanism detects the label on the upper part of the bottle from above. A rotation adjustment mechanism is used to rotate the bottle. The second visual detection mechanism detects the label on the upper and middle parts of the bottle from the side. In this application, the second visual detection mechanism is directly photographing the bottle body, making it only suitable for opaque bottles. It is not suitable for highly reflective or highly transparent bottles. Utility Model Content

[0005] To address the issues of existing technologies requiring manual label inspection after labeling and being unsuitable for inspecting highly reflective transparent glass bottles, this solution provides a glass bottle label inspection device. In this device, the bottle is tilted with its label facing upwards and placed in the inspection fixture. By adjusting the shooting angle of the first vision inspection unit, machine vision inspection of the label on the transparent glass bottle is achieved, improving inspection quality and efficiency.

[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0007] This utility model discloses a transparent glass bottle label inspection device, comprising an incoming material conveyor line, a first transfer mechanism, an inspection fixture, a second transfer mechanism, and an outgoing material conveyor line. The device is characterized in that a first positioning mechanism is located on one side of the output end of the incoming material conveyor line; an infeed mechanism is used to transfer the bottle from the incoming material conveyor line to the first positioning mechanism; the first transfer mechanism is used to place the bottle onto the inspection fixture; the first transfer mechanism clamps the bottle mouth and rotates the bottle body around a horizontal axis; the bottle body is tilted and its label faces upwards when placed in the inspection fixture; a first vision inspection unit is located directly above the inspection fixture; an industrial camera in the first vision inspection unit is vertically downwards; the second transfer mechanism places the bottle onto the outgoing mechanism; and the outgoing mechanism transfers the bottle to the outgoing material conveyor line.

[0008] Furthermore, the testing fixture includes a testing support frame and a second positioning block. The second positioning block is fixed to the upper surface of the testing support frame, and the positioning groove in the second positioning block is inclined and designed to mimic the shape of the wine bottle body.

[0009] Furthermore, one end of the positioning groove in the second positioning block is open, and the bottleneck clamping block is installed on the upper surface of the detection support frame and located at the open end of the positioning groove in the second positioning block.

[0010] Furthermore, the bottleneck clamping block is slidably disposed on the upper end face of the detection support frame.

[0011] Furthermore, the bottle-feeding mechanism includes a first bottle-feeding cylinder and a second bottle-feeding cylinder. The bottle-feeding support frame is set on one side of the output end of the material conveyor line. The first bottle-feeding cylinder is horizontally set and installed on the bottle-feeding support frame. The second bottle-feeding cylinder is vertically set and installed at the horizontal output end of the first bottle-feeding cylinder. The bottle-pushing brush is vertically installed at the output end of the second bottle-feeding cylinder.

[0012] Furthermore, the first positioning mechanism is located at the output end of the material conveyor line. The first positioning mechanism includes a first positioning block and a positioning support plate. The positioning support plate is fixedly installed. The first positioning block has a U-shaped groove with one end open. The first positioning block is installed on the upper surface of the positioning support plate.

[0013] Furthermore, the first positioning mechanism also includes a second vision detection unit and an attitude adjustment motor. The positioning support plate is made of a light-transmitting material. The second vision detection unit takes pictures of the bottom of the bottle to identify the bottle's attitude, and the attitude adjustment motor drives the bottle to rotate according to the information captured by the second vision detection unit.

[0014] Furthermore, the second visual detection unit identifies the type and label of each bottle.

[0015] Furthermore, the first transfer mechanism includes a first transfer moving mechanism, which is vertically arranged and installed on a first transfer support frame. A movable connecting plate is installed at the output end of the first transfer moving mechanism. A rotary cylinder is horizontally arranged and installed on the movable connecting plate. The rotary cylinder drives a rotating support rod to rotate around one end of itself. A clamping cylinder is installed at the other end of the rotating support rod, and a gripper is installed at the output end of the clamping cylinder.

[0016] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0017] (1) The first transfer mechanism is used to place the wine bottle onto the inspection fixture. The first transfer mechanism clamps the bottle mouth and drives the bottle body to rotate around the horizontal axis. The wine bottle body is tilted and its label is facing upwards in the inspection fixture. The first vision inspection unit is set directly above the inspection fixture. The industrial camera in the first vision inspection unit shoots vertically downwards, thereby adjusting the shooting angle of the first vision inspection unit to improve the image quality so as to facilitate the adaptability of subsequent machine vision calculations, so as to realize machine vision inspection of the trademark of transparent glass wine bottles and improve the inspection quality and efficiency.

[0018] (2) In this utility model, the bottleneck clamping block is slidably set on the upper surface of the detection support frame. The bottleneck clamping block supports the bottleneck of the wine bottle, and the positioning groove in the second positioning block supports the body and bottom of the wine bottle, thereby supporting the bottleneck of the wine bottle with a wider range of bottle height. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the transparent glass bottle label detection device according to an embodiment of the present invention.

[0020] Figure 2 This is an embodiment of the present utility model. Figure 1 A top-view structural diagram.

[0021] Figure 3 This is a partial structural diagram of the bottle-feeding mechanism in an embodiment of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the first transfer mechanism in an embodiment of this utility model.

[0023] Figure 5 This is a partial structural diagram of the first positioning mechanism in an embodiment of the present invention.

[0024] Figure 6 This is a partial top view of the first positioning mechanism in an embodiment of the present invention.

[0025] Figure 7 This is a partial structural diagram of the detection tooling in an embodiment of this utility model.

[0026] Figure 8 This is a partial structural diagram of the bottle dispensing mechanism in an embodiment of this utility model.

[0027] Label Explanation:

[0028] 1. Turntable 1;

[0029] 2. Inspection fixture; 201. Inspection support frame; 202. Second positioning block; 203. Bottleneck clamping block;

[0030] 3. First visual detection unit 3;

[0031] 4. Incoming material conveyor line;

[0032] 5. Discharge conveyor line;

[0033] 6. First transfer mechanism; 601. First transfer support frame; 602. First transfer moving mechanism; 603. Moving connecting plate; 604. Rotary cylinder; 605. Rotating support rod; 606. Clamping cylinder; 607. Gripper;

[0034] 7. Bottle feeding mechanism; 701. Bottle feeding support frame; 702. First bottle feeding cylinder; 703. Second bottle feeding cylinder; 704. Bottle pushing brush;

[0035] 8. Second transshipment facility;

[0036] 9. Bottle dispensing mechanism; 901. Bottle dispensing support frame; 902. Push plate; 903. Bottle dispensing cylinder;

[0037] 10. First positioning mechanism; 101. First positioning block; 102. Positioning support plate; 103. Second vision detection unit; 104. Attitude adjustment motor; 105. Adjustment table. Detailed Implementation

[0038] To further understand the content of this utility model, a detailed description of this utility model will be provided in conjunction with the accompanying drawings and embodiments.

[0039] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the invention. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of the invention, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this specification are merely for clarity and not intended to limit the scope of implementation. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0040] like Figure 1 , Figure 2 As shown, the transparent glass bottle label detection device of this embodiment includes an incoming material conveyor line 4, a first transfer mechanism 6, a detection fixture 2, a second transfer mechanism 8, and an outgoing material conveyor line 5. A first positioning mechanism 10 is disposed on one side of the output end of the incoming material conveyor line 4. An inlet mechanism 7 is used to transfer the bottle from the incoming material conveyor line 4 to the first positioning mechanism 10. The first transfer mechanism 6 is used to place the bottle on the detection fixture 2. The first transfer mechanism 6 clamps the bottle mouth and drives the bottle body to rotate around the horizontal axis. The bottle body is tilted and its label is facing upward in the detection fixture 2. A first vision detection unit 3 is disposed directly above the detection fixture 2. The industrial camera in the first vision detection unit 3 is set vertically downward. The second transfer mechanism 8 places the bottle on the outgoing bottle mechanism 9, and the outgoing bottle mechanism 9 transfers the bottle to the outgoing material conveyor line 5.

[0041] In this embodiment, by placing the wine bottle at an angle with its label facing upward in the inspection fixture 2, preferably with the angle between the axis of the wine bottle body and the horizontal line between 30-60°, and more preferably between 40-50°, and with the industrial camera in the first vision inspection unit 3 set vertically downward, the camera shooting angle is not directly facing the wine bottle label, thus solving the technical problem that machine vision cannot recognize photos taken by the industrial camera directly facing the wine bottle label due to the material of the wine bottle body.

[0042] like Figure 5 , Figure 6 , Figure 7 As shown, the testing fixture 2 includes a testing support frame 201 and a second positioning block 202. The second positioning block 202 is fixed on the upper end face of the testing support frame 201. The positioning groove in the second positioning block 202 is inclined and is designed to mimic the shape of the bottle body. The bottle is placed in the positioning groove of the second positioning block 202.

[0043] Furthermore, one end of the positioning groove in the second positioning block 202 is open, and the bottle neck clamping block 203 is installed on the upper surface of the detection support frame 201 and located at the open end of the positioning groove in the second positioning block 202; the bottle bottom, bottle mouth, and bottle body of the bottle neck clamping block 203 contact the positioning groove of the second positioning block 202, and the bottle mouth is placed on the bottle neck clamping block 203. Specifically, the bottle clamping block contacts the bottle neck near the bottle mouth, and the position of the bottle neck near the bottle mouth is generally a cylindrical curved surface, thereby increasing the contact length with the bottle neck clamping block 203. Furthermore, the contact position between the clamping groove opening of the bottle neck clamping block 203 and the bottle neck is designed to conform to the shape, thereby increasing the contact area.

[0044] In some embodiments, particularly preferably, the bottleneck clamping block 203 is slidably disposed on the upper end surface of the detection support frame 201 to support the bottleneck of wine bottles with a wider range of bottle heights.

[0045] Specifically, the bottleneck cylinder is mounted on the detection support frame 201, and the bottleneck cylinder drives the bottleneck clamping block 203 to move relative to the second positioning block 202 along the direction of the bottle axis. More preferably, the detection support frame 201 has a hollow structure with an open end, and the bottleneck cylinder is installed inside the detection support frame 201. To ensure the stability of the movement of the bottleneck clamping block 203, and thus ensure that the bottle body is placed in the second positioning block 202 at a consistent tilt angle, a guide sliding mechanism is provided between the bottleneck cylinder and the bottleneck clamping block 203. More specifically, the guide interaction mechanism is selected as a guide rail and slider assembly to adapt to a smaller installation space.

[0046] like Figure 3 As shown, the bottle feeding mechanism 7 includes a first bottle feeding cylinder 702 and a second bottle feeding cylinder 703. The bottle feeding support frame 701 is set on one side of the output end of the material conveying line 4. The first bottle feeding cylinder 702 is horizontally set and installed on the bottle feeding support frame 701. The second bottle feeding cylinder 703 is vertically set and installed on the horizontal output end of the first bottle feeding cylinder 702. The bottle pushing brush 704 is vertically installed on the output end of the second bottle feeding cylinder 703.

[0047] The first bottle-feeding cylinder 702 drives the bottle-pushing brush 704 to move horizontally closer to or away from the material conveyor line 4, and the second bottle-feeding cylinder 703 drives the bottle-pushing brush 704 to move vertically closer to or away from the material conveyor line 4. The first bottle-feeding cylinder 702 and the second bottle-feeding cylinder 703 together drive the bottle-pushing brush 704 to push the wine bottle into the first positioning mechanism 10.

[0048] like Figure 5As shown, the first positioning mechanism 10 is located at the output end of the material conveying line 4. The first positioning mechanism 10 includes a first positioning block 101 and a positioning support plate 102. The positioning support plate 102 is fixedly installed. The first positioning block 101 has a U-shaped groove with one end open. The first positioning block 101 is installed on the upper surface of the positioning support plate 102. The bottle body contacts the arc segment of the U-shaped groove.

[0049] like Figure 5 , Figure 6 As shown, the first positioning mechanism 10 also includes a second vision detection unit 103 and an attitude adjustment motor 104. The positioning support plate 102 is made of a light-transmitting material. The second vision detection unit 103 captures images of the bottom of the bottle to identify its attitude. The attitude adjustment motor 104 rotates the bottle based on the information captured by the second vision detection unit 103. Specifically, a through hole is opened at one end of the positioning support plate 102 near the attitude adjustment motor 104. An adjustment platform 105 passes through the through hole in the positioning support plate 102, and the attitude adjustment motor 104 drives the adjustment platform 105 to rotate.

[0050] Furthermore, the second vision detection unit 103 identifies the type and label of each bottle, thereby communicating with the first vision detection unit 3 to understand the type of label to be detected. Preferably, the second vision detection unit 103 communicates with the bottle neck cylinder to adjust the position of the bottle neck clamping block 203 to provide better bottle neck support for various glass bottles of different heights.

[0051] like Figure 4 As shown, the first rotating mechanism 6 includes a first moving mechanism 602 for transporting materials. The first moving mechanism 602 is vertically arranged and installed on the first transport support frame 601. A moving connecting plate 603 is installed on the output end of the first moving mechanism 602. A rotating cylinder 604 is horizontally arranged and installed on the moving connecting plate 603. The rotating cylinder 604 drives the rotating support rod 605 to rotate around one end of itself. A clamping cylinder 606 is installed on the other end of the rotating support rod 605. A gripper 607 is installed on the output end of the clamping cylinder 606.

[0052] Furthermore, the first moving mechanism 602 for transfer adopts a linear module. A rotary motor drives the linear module to move, thereby improving the stability of the movement. A rotary cylinder 604 is installed on the lower end face of the moving connecting plate 603. The rotary cylinder 604 is a dual-axis rotary cylinder 604. One end of each of the two rotating support rods 605 is installed on the two output ends of the dual-axis rotary cylinder 604, which is beneficial to the stability of rotation. The rotary cylinder 604 is installed on the two rotating support rods 605. Thus, the first moving mechanism 602 for transfer drives the gripper 607 to move in the vertical direction. The rotary cylinder 604 drives the gripper 607 to rotate through the rotating support rods 605. The gripper 607 clamps the bottle mouth, causing the bottle mouth to rotate around the horizontal axis, that is, causing the bottle body to tilt.

[0053] To improve the efficiency of label detection, such as Figure 2 As shown, at least one inspection fixture 2 is mounted on a turntable 1, which is driven by a motor located below the turntable 1. Furthermore, to facilitate providing a power source for the inspection fixture 2, a through-type pneumatic slip ring is provided in the center of the turntable 1. Even further, the number of inspection fixtures 2 is preferably three, arranged along the circumference of the turntable 1. Each inspection fixture 2 is equipped with a first vision inspection unit 3, thereby improving inspection efficiency. As another further embodiment, the number of inspection fixtures 2 is preferably six, with three adjacent inspection fixtures 2 forming a group. The six inspection fixtures 2 are divided into an inspection group and a temporary storage group. Each inspection fixture 2 in the inspection group is equipped with a first vision inspection unit 3, and the temporary storage group is used to store bottles that have completed inspection and are awaiting delivery to the discharge conveyor line 5.

[0054] Furthermore, the structure of the second transfer mechanism 8 is the same as that of the first transfer mechanism 6.

[0055] like Figure 8 As shown, the bottle dispensing mechanism 9 includes a bottle dispensing support frame 901 and a bottle dispensing cylinder 903. The bottle dispensing support frame 901 is fixedly installed, the bottle dispensing cylinder 903 is installed on the bottle dispensing cylinder 903, and the push plate 902 is installed on the output end of the bottle dispensing cylinder 903. The bottle dispensing cylinder 903 drives the push plate 902 to push the wine bottle onto the dispensing conveyor line 5.

[0056] The process of label inspection for transparent glass wine bottles is as follows: After the labeling process applies the label to the wine bottle, the bottle moves with the incoming material conveyor line 4. The bottle inlet mechanism 7 pushes the wine bottle to the first positioning mechanism 10. The first positioning mechanism 10 drives the wine bottle to rotate and adjust the orientation of the bottle label to be consistent. The first transfer mechanism 6 clamps the bottle mouth and drives the bottle body to rotate around the horizontal axis. The bottle body is tilted and its label is facing upwards and placed in the inspection fixture 2. The first vision inspection unit 3 is set above the inspection fixture 2. The industrial camera in the first vision inspection unit 3 is set vertically downwards. After the first vision inspection unit 3 completes the inspection, it waits for transfer. The second transfer mechanism 8 clamps the wine bottle from the inspection fixture 2 and places it on the bottle outlet mechanism 9. The bottle outlet mechanism 9 pushes the wine bottle to the outgoing material conveyor line 5.

[0057] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A transparent glass bottle label inspection device, comprising an incoming conveyor line (4), a first transfer mechanism (6), an inspection fixture (2), a second transfer mechanism (8), and an outgoing conveyor line (5), characterized in that, The first positioning mechanism (10) is set on one side of the output end of the incoming material conveyor line (4). The bottle inlet mechanism (7) is used to transfer the wine bottle from the incoming material conveyor line (4) to the first positioning mechanism (10). The first transfer mechanism (6) is used to place the wine bottle on the inspection fixture (2). The first transfer mechanism (6) clamps the bottle mouth and drives the bottle body to rotate around the horizontal axis. The wine bottle body is tilted and its label is facing upward in the inspection fixture (2). The first vision inspection unit (3) is set directly above the inspection fixture (2). The industrial camera in the first vision inspection unit (3) is set vertically downward. The second transfer mechanism (8) places the wine bottle on the bottle outlet mechanism (9). The bottle outlet mechanism (9) transfers the wine bottle to the outgoing material conveyor line (5).

2. The transparent glass bottle label detection device according to claim 1, characterized in that, The testing fixture (2) includes a testing support frame (201) and a second positioning block (202). The second positioning block (202) is fixed on the upper surface of the testing support frame (201). The positioning groove in the second positioning block (202) is inclined and is designed to mimic the shape of the bottle body.

3. The transparent glass bottle label detection device according to claim 2, characterized in that, One end of the positioning groove in the second positioning block (202) is open, and the bottleneck clamping block (203) is installed on the upper surface of the detection support frame (201) and located at the open end of the positioning groove in the second positioning block (202).

4. The transparent glass bottle label detection device according to claim 3, characterized in that, The bottleneck clamping block (203) is slidably disposed on the upper surface of the detection support frame (201).

5. The transparent glass bottle label detection device according to any one of claims 1-4, characterized in that, The bottle-feeding mechanism (7) includes a first bottle-feeding cylinder (702) and a second bottle-feeding cylinder (703). The bottle-feeding support frame (701) is set on one side of the output end of the material conveying line (4). The first bottle-feeding cylinder (702) is set horizontally and installed on the bottle-feeding support frame (701). The second bottle-feeding cylinder (703) is set vertically and installed on the horizontal output end of the first bottle-feeding cylinder (702). The bottle-pushing brush (704) is installed vertically on the output end of the second bottle-feeding cylinder (703).

6. The transparent glass bottle label detection device according to any one of claims 1-4, characterized in that, The first positioning mechanism (10) is located at the output end of the material conveying line (4). The first positioning mechanism (10) includes a first positioning block (101) and a positioning support plate (102). The positioning support plate (102) is fixedly installed. The first positioning block (101) has a U-shaped groove with one end open. The first positioning block (101) is installed on the upper surface of the positioning support plate (102).

7. The transparent glass bottle label detection device according to claim 6, characterized in that, The first positioning mechanism (10) also includes a second vision detection unit (103) and an attitude adjustment motor (104). The positioning support plate (102) is made of a light-transmitting material. The second vision detection unit (103) takes pictures of the bottom of the bottle to identify the bottle's posture. The attitude adjustment motor (104) drives the bottle to rotate according to the information taken by the second vision detection unit (103).

8. The transparent glass bottle label detection device according to claim 7, characterized in that, The second visual detection unit (103) identifies the type and number of the wine bottles.

9. The transparent glass bottle label detection device according to claim 1, characterized in that, The first transfer mechanism (6) includes a first transfer moving mechanism (602), which is vertically arranged and installed on a first transfer support frame (601). A movable connecting plate (603) is installed on the output end of the first transfer moving mechanism (602). A rotary cylinder (604) is horizontally arranged and installed on the movable connecting plate (603). The rotary cylinder (604) drives a rotating support rod (605) to rotate around one end of itself. A clamping cylinder (606) is installed on the other end of the rotating support rod (605). A gripper (607) is installed on the output end of the clamping cylinder (606).

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