An automatic visual inspection device for defects in plastic bottles

Abstract

This utility model belongs to the field of plastic bottle production technology, specifically an automatic visual inspection device for plastic bottle defects. It includes a housing, an industrial camera fixedly installed inside the housing, a slide extending through the housing, a support rod fixedly connected to the surface of the slide, and the support rod rotatably connected to the inner wall of the housing. A lifting assembly is fixedly installed inside the housing, working in conjunction with the slide. A bracket is also fixedly installed inside the housing. By setting up the slide, plastic bottles can smoothly pass through the housing. As the plastic bottles pass through the housing, the industrial camera detects defects without any positional shift affecting the accuracy of defect detection. Furthermore, the tilt angle of the slide can be adjusted using the lifting assembly to adjust the speed at which the plastic bottles pass through the housing, adapting to conveyor belts with different conveying speeds.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle production technology, specifically an automatic visual inspection device for defects in plastic bottles. Background Technology

[0002] The automatic visual inspection device for plastic bottle defects is an automated inspection device based on machine vision and artificial intelligence technologies. It can efficiently and accurately identify various defects in the plastic bottle production process. By simulating the human visual system and combining optical imaging, image processing and deep learning algorithms, it can achieve automated detection of plastic bottle defects.

[0003] In existing technologies, when using an automatic visual inspection device for plastic bottle defects, the vibration of the conveyor belt while moving the plastic bottle causes the bottle to shift, resulting in misalignment of the monitoring area and affecting the detection accuracy of plastic bottle defects. Therefore, an automatic visual inspection device for plastic bottle defects is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention proposes an automatic visual inspection device for plastic bottle defects. When the conveyor belt moves the plastic bottle, vibration causes the bottle to shift, leading to misalignment of the monitoring area and affecting the accuracy of defect detection.

[0005] The technical solution adopted by this utility model to solve its technical problem is: an automatic visual inspection device for defects in plastic bottles, including a box, an industrial camera fixedly installed inside the box, a slide passing through the inside of the box, a support rod fixedly connected to the surface of the slide, the support rod being rotatably connected to the inner wall of the box, a lifting assembly fixedly installed inside the box, the lifting assembly cooperating with the slide, a bracket fixedly installed inside the box, a lamp holder rotatably installed inside the bracket, a lamp fixedly installed at the bottom of the lamp holder, and an adjustment assembly fixedly installed on the surface of the bracket, the adjustment assembly cooperating with the lamp holder; The lifting assembly includes a mounting frame fixedly installed inside the housing, a first electric push rod rotatably connected inside the mounting frame, a fixed frame fixedly installed at the bottom of the slide, and a movable frame rotatably connected to the telescopic end of the first electric push rod, the movable frame being slidably connected to the fixed frame.

[0006] Preferably, a positioning block is fixedly installed at one end of the support rod, and a positioning groove is provided on the inner wall of the box, with the inner cavity of the positioning groove slidably connected to the surface of the positioning block.

[0007] Preferably, the surface of the fixed frame is provided with a sliding groove, and the surface of the movable frame is slidably connected to the inner cavity of the sliding groove.

[0008] Preferably, a limiting block is fixedly installed on the surface of the movable frame, and a limiting groove is formed in the inner wall of the slide, with the inner cavity of the limiting groove slidingly connected to the surface of the limiting block.

[0009] Preferably, a rotating rod is fixedly connected to the surface of the lamp holder, and the rotating rod is rotatably connected to the inner wall of the bracket.

[0010] Preferably, the adjustment assembly includes a second electric push rod fixedly mounted on the surface of the bracket, a connecting rod fixedly connected to the surface of the telescopic end of the second electric push rod, a connecting groove being formed on the surface of the lamp holder, and one end of the connecting rod passing through the connecting groove and slidingly connected to the inner cavity of the connecting groove.

[0011] Preferably, a support block is fixedly installed at one end of the connecting rod, and the surface of the support block is slidably connected to the surface of the lamp holder.

[0012] The advantages of this utility model are: 1. This utility model, by setting up a slide, allows plastic bottles to pass smoothly through the box. When the plastic bottles pass through the box, industrial cameras are used to detect defects in the plastic bottles. There will be no positional shifts that would affect the accuracy of defect detection. Moreover, the tilt angle of the slide can be adjusted by the lifting component as needed to adjust the speed at which the plastic bottles pass through the box, so as to adapt to plastic bottle conveyor belts with different conveying speeds. 2. This utility model, by setting an adjustment component, can adjust the tilt angle of the lamp holder, thereby adjusting the illumination angle to adjust the illumination angle according to the diameter of the plastic bottle, reducing overexposure or underexposure of the image. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the automatic visual inspection device for defects in plastic bottles according to this utility model. Figure 2 This is a cross-sectional structural diagram of the present invention; Figure 3 This is a schematic diagram of the support rod structure of this utility model; Figure 4 This is a schematic diagram of the lifting component structure of this utility model; Figure 5 This is a schematic diagram of the adjustment component structure of this utility model.

[0015] In the diagram: 1. Housing; 2. Industrial camera; 3. Carriage; 31. Support rod; 3101. Positioning block; 3102. Positioning groove; 4. Lifting assembly; 41. First electric push rod; 42. Moving frame; 43. Fixed frame; 44. Mounting frame; 45. Slide; 46. Limiting block; 47. Limiting groove; 5. Bracket; 51. Lamp holder; 5101. Rotating rod; 6. Lighting lamp; 7. Adjustment assembly; 71. Second electric push rod; 72. Connecting rod; 73. Connecting groove; 74. Support block. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail. This application discloses an automatic visual inspection device for defects in plastic bottles. (Refer to...) Figure 2 and Figure 4 An automatic visual inspection device for defects in plastic bottles includes a housing 1, an industrial camera 2 fixedly installed inside the housing 1, a slide 3 passing through the inside of the housing 1, a support rod 31 fixedly connected to the surface of the slide 3, the support rod 31 being rotatably connected to the inner wall of the housing 1, a lifting assembly 4 fixedly installed inside the housing 1, the lifting assembly 4 cooperating with the slide 3, a bracket 5 fixedly installed inside the housing 1, a lamp holder 51 rotatably installed inside the bracket 5, a lamp 6 fixedly installed at the bottom of the lamp holder 51, and an adjustment assembly 7 fixedly installed on the surface of the bracket 5, the adjustment assembly 7 cooperating with the lamp holder 51. The lifting assembly 4 includes a mounting frame 44 fixedly installed inside the housing 1. A first electric push rod 41 is rotatably connected inside the mounting frame 44. A fixed frame 43 is fixedly installed at the bottom of the slide 3. A movable frame 42 is rotatably connected to the telescopic end of the first electric push rod 41. The movable frame 42 is slidably connected to the fixed frame 43. By letting the plastic bottle fall onto the slide 3, the plastic bottle passes through the housing 1 through the slide 3. When the plastic bottle passes through the housing 1, the illumination lamp 6 can provide supplementary lighting for the plastic bottle, so that the industrial camera 2 can take pictures of the plastic bottle for visual inspection. Moreover, the lifting assembly 4 can adjust the tilt angle of the slide 3 to adjust the speed of the plastic bottle passing through the housing 1, thereby adapting to conveyor belts with different conveying speeds. The adjustment assembly 7 can adjust the angle of the lamp holder 51 to adjust the angle of the illumination lamp 6, so as to adjust the angle of the illumination lamp 6 according to the diameter of the plastic bottle and reduce the overexposure or underexposure of the image.

[0018] Reference Figure 2 and Figure 3 A positioning block 3101 is fixedly installed at one end of the support rod 31, and a positioning groove 3102 is provided on the inner wall of the housing 1. The inner cavity of the positioning groove 3102 is slidably connected to the surface of the positioning block 3101. The position of the support rod 31 is stabilized by the slidable connection between the surface of the positioning block 3101 and the inner cavity of the positioning groove 3102, so as to prevent the support rod 31 from falling off and affecting the position of the slide 3.

[0019] Reference Figure 2 and Figure 4 The surface of the fixed frame 43 is provided with a sliding groove 45, and the surface of the movable frame 42 is slidably connected to the inner cavity of the sliding groove 45. By sliding the surface of the movable frame 42 to the inner cavity of the sliding groove 45, the movable frame 42 can slide more smoothly on the surface of the fixed frame 43.

[0020] Reference Figure 2 and Figure 4 A limiting block 46 is fixedly installed on the surface of the movable frame 42, and a limiting groove 47 is opened in the inner wall of the slide 45. The inner cavity of the limiting groove 47 is slidably connected to the surface of the limiting block 46. The sliding connection between the surface of the limiting block 46 and the inner cavity of the limiting groove 47 stabilizes the position of the movable frame 42 inside the slide 45 and prevents the movable frame 42 from separating from the slide 45.

[0021] Reference Figure 2 and Figure 5 A rotating rod 5101 is fixedly connected to the surface of the lamp holder 51. The rotating rod 5101 is rotatably connected to the inner wall of the bracket 5. By rotating the rotating rod 5101 to the inner wall of the bracket 5, the position of the lamp holder 51 inside the bracket 5 is stabilized. At the same time, the lamp holder 51 can rotate around the rotating rod 5101 as the center to adjust the angle of the lamp holder 51.

[0022] Reference Figure 2 and Figure 5 The adjustment component 7 includes a second electric push rod 71 fixedly installed on the surface of the bracket 5. A connecting rod 72 is fixedly connected to the surface of the telescopic end of the second electric push rod 71. A connecting groove 73 is opened on the surface of the lamp holder 51. One end of the connecting rod 72 passes through the connecting groove 73 and is slidably connected to the inner cavity of the connecting groove 73. The second electric push rod 71 drives the connecting rod 72 to move. The connecting rod 72 drives the upper part of the lamp holder 51 to move through the connecting groove 73, so that the lamp holder 51 rotates around the rotating rod 5101 as the center, thereby adjusting the orientation of the lamp holder 51 and thus adjusting the illumination angle of the lamp 6.

[0023] Reference Figure 2 and Figure 5A support block 74 is fixedly installed at one end of the connecting rod 72, and the surface of the support block 74 is slidably connected to the surface of the lamp holder 51. By making the surface of the support block 74 slidably connected to the surface of the lamp holder 51, the position of the connecting rod 72 inside the connecting groove 73 is stabilized, and the connecting rod 72 is prevented from separating from the connecting groove 73.

[0024] Working Principle: During visual inspection of defects in plastic bottles, the plastic bottles are placed onto the slide 3 via a conveyor belt. The bottles pass through the housing 1 via the slide 3. As the bottles pass through the housing 1, a spotlight 6 illuminates them, allowing the industrial camera 2 to capture images for visual inspection. A first electric push rod 41 drives the moving frame 42, which is rotatably connected to the mounting frame 44. The telescopic end of the first electric push rod 41 is rotatably connected to the moving frame 42. Simultaneously, a limiting block 46 slides between its surface and the inner cavity of the limiting groove 47 to stabilize the position of the moving frame 42 within the slide groove 45. This allows the moving frame 42 to drive one end of the slide 3 longitudinally, enabling the slide 3 to move longitudinally. The rod 31 rotates around a center and slides through the surface of the positioning block 3101 and the inner cavity of the positioning groove 3102 to adjust the tilt angle of the carriage 3, thereby adjusting the speed at which the plastic bottle passes through the box 1 to adapt to conveyor belts with different conveying speeds. The second electric push rod 71 drives the connecting rod 72 to move, and the connecting rod 72 drives the upper part of the lamp holder 51 to move through the connecting groove 73. The support block 74 prevents the connecting rod 72 from separating from the connecting groove 73, so that the lamp holder 51 rotates around the rotating rod 5101, thereby adjusting the orientation of the lamp holder 51 and thus adjusting the illumination angle of the lamp 6. This allows the angle of the lamp 6 to be adjusted according to the diameter of the plastic bottle, reducing overexposure or underexposure of the image.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An automatic visual inspection apparatus for defects of plastic bottles, characterized by: The system includes a housing (1), an industrial camera (2) is fixedly installed inside the housing (1), a slide (3) runs through the inside of the housing (1), a support rod (31) is fixedly connected to the surface of the slide (3), the support rod (31) is rotatably connected to the inner wall of the housing (1), a lifting assembly (4) is fixedly installed inside the housing (1), the lifting assembly (4) works in conjunction with the slide (3), a bracket (5) is fixedly installed inside the housing (1), a lamp holder (51) is rotatably installed inside the bracket (5), a lamp (6) is fixedly installed at the bottom of the lamp holder (51), and an adjustment assembly (7) is fixedly installed on the surface of the bracket (5), the adjustment assembly (7) works in conjunction with the lamp holder (51). The lifting assembly (4) includes a mounting frame (44) fixedly installed inside the housing (1). The mounting frame (44) is rotatably connected to a first electric push rod (41). A fixed frame (43) is fixedly installed at the bottom of the slide (3). A movable frame (42) is rotatably connected to the telescopic end of the first electric push rod (41). The movable frame (42) is slidably connected to the fixed frame (43).

2. The automatic visual inspection device for defects of plastic bottles according to claim 1, characterized in that: A positioning block (3101) is fixedly installed at one end of the support rod (31), and a positioning groove (3102) is provided on the inner wall of the box (1). The inner cavity of the positioning groove (3102) is slidably connected to the surface of the positioning block (3101).

3. The automatic visual inspection device for defects of plastic bottles according to claim 1, characterized in that: The surface of the fixed frame (43) is provided with a sliding groove (45), and the surface of the movable frame (42) is slidably connected to the inner cavity of the sliding groove (45).

4. The automatic visual inspection device for defects of plastic bottles according to claim 3, characterized in that: A limiting block (46) is fixedly installed on the surface of the movable frame (42), and a limiting groove (47) is opened on the inner wall of the slide (45). The inner cavity of the limiting groove (47) is slidably connected to the surface of the limiting block (46).

5. The automatic visual inspection device for defects of plastic bottles according to claim 1, characterized in that: A rotating rod (5101) is fixedly connected to the surface of the lamp holder (51), and the rotating rod (5101) is rotatably connected to the inner wall of the bracket (5).

6. The automatic visual inspection apparatus for plastic bottle defects according to claim 1, characterized in that: The adjustment component (7) includes a second electric push rod (71) fixedly installed on the surface of the bracket (5). A connecting rod (72) is fixedly connected to the surface of the telescopic end of the second electric push rod (71). A connecting groove (73) is opened on the surface of the lamp holder (51). One end of the connecting rod (72) passes through the connecting groove (73) and is slidably connected to the inner cavity of the connecting groove (73).

7. The automatic visual inspection apparatus for plastic bottle defects according to claim 6, characterized in that: One end of the connecting rod (72) is fixedly installed with a support block (74), and the surface of the support block (74) is slidably connected to the surface of the lamp holder (51).

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