A plastic bottle light transmission defect detection device

Abstract

The utility model discloses a kind of plastic bottle light transmission defect detection devices, including mounting seat, rotating member, bearing, first mounting plate, detection lamp, second mounting plate, imaging plate, sensor and power supply, rotating member is installed in mounting seat by bearing, first mounting plate is installed in mounting seat side wall, detection lamp is installed on first mounting plate, second mounting plate is installed on the side of mounting seat away from first mounting plate, imaging plate is installed on second mounting plate, sensor is installed on second mounting plate, power supply is installed on second mounting plate top, between sensor and power supply by wire connection.The utility model is stable and has strong adaptability, and detection is comprehensive and accurate, by rotating bidirectional screw rod drives push plate and arc clamping plate to be close to plastic bottle, cooperate spring elastic force, different size plastic bottle can be stably clamped, and bottle body can be avoided to be damaged.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle testing technology, specifically to a device for detecting light transmittance defects in plastic bottles. Background Technology

[0002] In the field of detecting light transmittance defects in plastic bottles, existing technologies mostly rely on manual handheld inspection tools or simple fixing devices. During manual inspection, operators need to hold a light source to illuminate the plastic bottle while visually observing the light transmittance and whether there are any defects. Simple fixing devices involve placing the plastic bottle on a fixed support, using a single-sided light source to illuminate it, and recording the light transmittance image of the bottle with a single-angle imaging device. The image is then compared manually or with simple sensors to determine whether it is qualified.

[0003] However, existing technologies have significant shortcomings: First, they have poor clamping adaptability. The bracket size of simple fixing devices is fixed, which can only be used for plastic bottles of specific sizes. When dealing with plastic bottles of different diameters and heights, the bracket needs to be replaced, which is cumbersome and costly. At the same time, some devices use rigid clamping structures, which can easily crush and damage the plastic bottles during clamping, affecting the integrity of the bottles after inspection. Second, the inspection coverage is incomplete. Whether it is manual handheld inspection or simple fixing devices, it is difficult to achieve all-round rotation inspection of plastic bottles. It is mostly limited to a single or a few angles, which can easily miss light transmission defects on the sides and bottom of the bottle due to blind spots, resulting in low inspection accuracy. Third, the human involvement is high and the efficiency is low. Human observation and judgment are easily affected by subjective factors, which poses a risk of misjudgment. Simple devices lack an automated rotation and data comparison linkage mechanism, and the inspection process is slow, making it difficult to meet the quality control requirements of mass production of plastic bottles. Utility Model Content

[0004] The problem this invention aims to solve is to provide a device for detecting light transmittance defects in plastic bottles. This invention offers stable clamping and strong adaptability, providing comprehensive and accurate detection. By rotating a bidirectional lead screw, the push plate and arc-shaped clamping plate are brought closer to the plastic bottle. Combined with the elastic force of the spring, this device can securely clamp plastic bottles of different sizes while avoiding damage to the bottle body. Simultaneously, the sensor controls the operation of the drive assembly. Through the meshing of the full gear and driven gear, the rotating parts and the plastic bottle are rotated, enabling multi-angle detection, reducing blind spots, and improving the accuracy of light transmittance defect detection.

[0005] The technical solution provided by this utility model to solve the above problems is as follows: a device for detecting light transmittance defects in plastic bottles, including a mounting base, a rotating component, a bearing, a first mounting plate, a detection lamp, a second mounting plate, an imaging plate, a sensor, and a power supply. The rotating component is mounted in the mounting base through the bearing. The first mounting plate is mounted on the side wall of the mounting base. The detection lamp is mounted on the first mounting plate. The second mounting plate is mounted on the side of the mounting base away from the first mounting plate. The imaging plate is mounted on the second mounting plate. The sensor is mounted on the second mounting plate. The power supply is mounted on the top of the second mounting plate. The sensor and the power supply are connected by a wire. The device also includes a rotating mechanism and a clamping mechanism. The rotating mechanism is used to drive the rotating component to rotate the plastic bottle. The clamping mechanism is used to clamp the plastic bottle to be detected.

[0006] More preferably, the rotating mechanism includes a third mounting plate, a drive assembly, and a driven gear. The third mounting plate is mounted on the side of the mounting base near the first mounting plate, the drive assembly is mounted on the third mounting plate, and the driven gear is mounted on the rotating member and meshes with the drive assembly.

[0007] More preferably, the drive assembly consists of a motor and a full gear, with the full gear meshing with the driven gear.

[0008] More preferably, the motor of the drive assembly is electrically connected to the sensor.

[0009] More preferably, the clamping mechanism includes a bidirectional lead screw, a push plate, a clamping plate, and a spring. The bidirectional lead screw is rotatably connected to the rotating part, and the symmetrically arranged push plates are slidably connected to the rotating part. The push plates are threadedly connected to the bidirectional lead screw, and each push plate is slidably connected to a clamping plate. Each clamping plate is connected to the corresponding push plate by a spring.

[0010] More preferably, the clamps are curved.

[0011] Compared with the prior art, the advantages of this utility model are: the clamping is stable and highly adaptable, and the detection is comprehensive and accurate. By rotating the bidirectional lead screw, the push plate and the arc-shaped clamping plate are driven to approach the plastic bottle. With the help of the spring elastic force, it can not only firmly clamp plastic bottles of different sizes, but also avoid damage to the bottle body. At the same time, the sensor controls the operation of the drive component. With the meshing of the full gear and the driven gear, the rotating part and the plastic bottle are driven to rotate, realizing multi-angle detection, reducing blind spots, and improving the accuracy of light transmission defect detection.

[0012] The test results are reliable and highly automated. The sensor can pre-store images of qualified plastic bottles and threshold values ​​for light transmittance parameters. During the test, the image of the test bottle on the imaging plate is compared with the standard image, and the light transmittance data is analyzed to see if it meets the threshold. The data comparison avoids subjective human error. The linkage of various components enables the orderly clamping, rotation and data comparison of plastic bottles without much manual intervention, reducing the intensity of operation and speeding up the test process. Attached Figure Description

[0013] The accompanying drawings, which are provided to further illustrate the present invention and constitute a part of the present invention, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0014] Figure 1 This is a schematic diagram of the first three-dimensional structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.

[0016] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the rotating mechanism of this utility model.

[0017] Figure 4 This is a partial cross-sectional three-dimensional structural diagram of the clamping mechanism of this utility model.

[0018] Figure labels: 1. Mounting base; 2. Rotating component; 3. Bearing; 4. First mounting plate; 5. Detection lamp; 6. Second mounting plate; 7. Imaging plate; 8. Sensor; 9. Power supply; 10. Rotation mechanism; 101. Third mounting plate; 102. Drive assembly; 103. Driven gear; 11. Clamping mechanism; 111. Bidirectional lead screw; 112. Push plate; 113. Clamping plate; 114. Spring. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, it should be noted that the terms "first," "second," etc., are used for descriptive purposes only and do not specifically refer to any order or sequence, nor are they intended to limit the present utility model. They are merely used to distinguish components or operations described with the same technical terms, and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. The term "comprising" and any variations thereof in the specification, claims, and accompanying drawings of the present utility model are intended to cover non-exclusive inclusion.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Furthermore, it should be understood in the description of this utility model that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] Example: As shown in the attached drawings, a device for detecting light transmittance defects in plastic bottles includes a mounting base 1, a rotating component 2, a bearing 3, a first mounting plate 4, a detection lamp 5, a second mounting plate 6, an imaging plate 7, a sensor 8, and a power supply 9. The rotating component 2 is mounted in the mounting base 1 via the bearing 3. The rotating component 2 is used to rotate the plastic bottle, thereby detecting light transmittance defects at multiple angles. The first mounting plate 4 is mounted on the side wall of the mounting base 1. The detection lamp 5 is mounted on the first mounting plate 4. The second mounting plate 6 is mounted on the side of the mounting base 1 away from the first mounting plate 4. The imaging plate 7 is mounted on the second mounting plate 6. The sensor 8 is mounted on the second mounting plate 6. The power supply 9 is mounted on the top of the second mounting plate 6. Sensor 8 is connected to power supply 9 via wires. Detection lamp 5 and imaging plate 7 are both electrically connected to sensor 8. Detection lamp 5 can detect the light transmittance of the plastic bottle, and the effect of the illuminated plastic bottle is displayed on imaging plate 7. First, images of qualified plastic bottles are uploaded into sensor 8 to establish a standard image database and light transmittance parameter thresholds. Sensor 8 receives signals and can compare the imaging results of the tested plastic bottle with the standard images for feature comparison. At the same time, it compares the light transmittance data with the preset threshold to comprehensively determine whether the plastic bottle is qualified. It also includes a rotating mechanism 10 and a clamping mechanism 11. The rotating mechanism 10 is used to drive the rotating part 2 to rotate the plastic bottle, and the clamping mechanism 11 is used to clamp the plastic bottle to be tested.

[0023] In this embodiment, specifically, the rotating mechanism 10 includes a third mounting plate 101, a drive assembly 102, and a driven gear 103. The third mounting plate 101 is mounted on the side of the mounting base 1 near the first mounting plate 4. The drive assembly 102 is mounted on the third mounting plate 101 and consists of a motor and a full gear. The driven gear 103 is mounted on the rotating member 2 and meshes with the full gear of the drive assembly 102. The motor of the drive assembly 102 is electrically connected to the sensor 8. After the data comparison at this angle is completed, the sensor 8 controls the drive assembly 102 to drive the rotating member 2 to rotate the plastic bottle, so that the plastic bottle can be detected from a different angle, thereby enabling multi-angle detection of the plastic bottle and improving detection accuracy. Furthermore, the clamping mechanism 11 includes a bidirectional lead screw 111, a push plate 112, a clamping plate 113, and a spring 114. The bidirectional lead screw 111 is rotatably connected to the rotating part 2, and the symmetrically arranged push plates 112 are slidably connected to the rotating part 2. The push plates 112 are threadedly connected to the bidirectional lead screw 111. Each push plate 112 is slidably connected to a clamping plate 113, which is arc-shaped. Each clamping plate 113 is connected to the corresponding push plate 112 by a spring 114.

[0024] When using this plastic bottle light transmittance defect detection device, first place the plastic bottle to be tested on the rotating part 2, rotate the bidirectional lead screw 111, the bidirectional lead screw 111 drives the symmetrically arranged push plate 112 to slide along the rotating part 2, and the clamping plate 113 on the push plate 112 moves closer to the plastic bottle. The clamping plate 113 is arc-shaped and can fit against the outer wall of the plastic bottle. With the elastic force of the spring 114, it can stably clamp plastic bottles of different sizes and avoid excessive clamping force from damaging the bottle body.

[0025] Images of qualified plastic bottles are uploaded to sensor 8 in advance to establish a standard image database and transmittance parameter thresholds. Power is supplied to each component by power supply 9. Detection lamp 5 lights up and emits light to the plastic bottle. After the light penetrates the plastic bottle, it forms an image on imaging plate 7. Sensor 8 receives the signal from imaging plate 7 and compares the image of the tested plastic bottle with the standard image for feature comparison. At the same time, it analyzes the difference between the transmittance data and the preset threshold.

[0026] Sensor 8 is electrically connected to drive assembly 102. After the current angle detection is completed, sensor 8 controls drive assembly 102 to start. The full gear and driven gear 103 of drive assembly 102 mesh, driving rotating component 2 to rotate within mounting base 1 via bearing 3, thereby driving the plastic bottle to rotate synchronously, realizing multi-angle detection and avoiding missing defects due to single-angle detection. Throughout the process, clamping mechanism 11 ensures the stability of the plastic bottle during rotation, rotating mechanism 10 achieves omnidirectional detection, and sensor 8 accurately completes comparative analysis, significantly improving the accuracy and efficiency of detecting light transmittance defects in plastic bottles.

[0027] The above description only illustrates the preferred embodiment of this utility model and should not be construed as limiting the scope of the claims. This utility model is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of this utility model are also within the scope of protection of this utility model.

Claims

1. A device for detecting light transmittance defects in plastic bottles, comprising a mounting base (1), a rotating component (2), a bearing (3), a first mounting plate (4), a detection lamp (5), a second mounting plate (6), an imaging plate (7), a sensor (8), and a power supply (9), wherein the rotating component (2) is mounted in the mounting base (1) via the bearing (3), the first mounting plate (4) is mounted on the side wall of the mounting base (1), the detection lamp (5) is mounted on the first mounting plate (4), the second mounting plate (6) is mounted on the side of the mounting base (1) away from the first mounting plate (4), the imaging plate (7) is mounted on the second mounting plate (6), the sensor (8) is mounted on the second mounting plate (6), the power supply (9) is mounted on the top of the second mounting plate (6), and the sensor (8) and the power supply (9) are connected by a wire, characterized in that, It also includes a rotating mechanism (10) and a clamping mechanism (11). The rotating mechanism (10) is used to drive the rotating part (2) to rotate the plastic bottle, and the clamping mechanism (11) is used to clamp the plastic bottle to be tested.

2. The device for detecting light transmittance defects in plastic bottles according to claim 1, characterized in that, The rotating mechanism (10) includes a third mounting plate (101), a drive assembly (102), and a driven gear (103). The third mounting plate (101) is mounted on the side of the mounting base (1) near the first mounting plate (4). The drive assembly (102) is mounted on the third mounting plate (101). The driven gear (103) is mounted on the rotating member (2) and meshes with the drive assembly (102).

3. The device for detecting light transmittance defects in plastic bottles according to claim 2, characterized in that, The drive assembly (102) consists of a motor and a full gear, which meshes with the driven gear (103).

4. The device for detecting light transmittance defects in plastic bottles according to claim 2, characterized in that, The motor of the drive assembly (102) is electrically connected to the sensor (8).

5. The device for detecting light transmittance defects in plastic bottles according to claim 1, characterized in that, The clamping mechanism (11) includes a bidirectional lead screw (111), a push plate (112), a clamping plate (113), and a spring (114). The bidirectional lead screw (111) is rotatably connected to the rotating part (2). The symmetrically arranged push plates (112) are slidably connected to the rotating part (2). The push plates (112) are threadedly connected to the bidirectional lead screw (111). Each push plate (112) is slidably connected to a clamping plate (113). Each clamping plate (113) is connected to the corresponding push plate (112) by a spring (114).

6. The device for detecting light transmittance defects in plastic bottles according to claim 5, characterized in that, The clamp (113) is curved.

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