Light-transmitting container wall thickness detection device

Abstract

This invention discloses a device for detecting the wall thickness of a transparent container, relating to the field of detection technology. It includes a dark chamber with a lid on top, an analysis component, a positioning component on the top of the lid, a light source component fixedly mounted on the side of the dark chamber, and a rotating component at the bottom of the inner cavity. A transparent container body is placed on the rotating component. This invention utilizes the fact that light rays incident at an angle to the surface of the transparent container body undergo two refractions upon passing through and after passing through the medium of the transparent container body, forming a three-segment light ray. The thickness of the medium of the transparent container body can be determined by the horizontal projection distance of the ray in the medium of the transparent container body. Furthermore, based on the known length of the horizontally emitted ray B, the percentage of ray A within the first medium can be calculated, thus yielding the target wall thickness.

Description

Technical Field

[0001] This invention relates to the field of detection technology, and in particular to a device for detecting the wall thickness of a transparent container. Background Technology

[0002] Currently, the empty bottle and pharmaceutical industries are developing rapidly. To ensure product quality, various tests are required before the bottles leave the factory, and the consistency of glass container wall thickness is an important indicator for ensuring glass bottle quality. Domestic glass bottle manufacturers currently mainly use contact-type glass bottle thickness measurement for testing; however, this method has drawbacks such as low accuracy, low speed, and high testing costs.

[0003] Therefore, in response to the above phenomenon, there is an urgent need to design and manufacture a light-transmitting container wall thickness detection device to meet the needs of practical use. Summary of the Invention

[0004] This invention provides a device for detecting the wall thickness of a transparent container, which solves the technical problems in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides a device for detecting the wall thickness of a transparent container, including a dark box, a lid on the top of the dark box, an analysis component, a positioning component on the top of the lid, a light source component fixedly installed on the side of the dark box, a rotating component at the bottom of the inner cavity of the dark box, a transparent container body placed on the rotating component, and a laser pointer including a laser pointer. The laser pointer projects light A in a horizontal direction and light B at a certain downward angle deviating from the horizontal direction. Light A includes a first external light source, a first internal light source, and a first internal light source. Light B includes a second external light source, a second internal light source, and a second internal light source. The projection length of the second internal light source is equal to the length of the first internal light source.

[0006] Preferably, the positioning component includes a guide cylinder, which is fixedly installed on the top of the box cover. A rotating column is rotatably connected to the middle of the guide cylinder. A light-absorbing column is fixedly installed at the bottom of the rotating column. A compression cone is movably sleeved on the surface of the rotating column. A compression spring is movably sleeved on the surface of the rotating column. The top of the compression cone is provided with a mounting groove. The bottom end of the compression spring is fixedly connected to the inside of the mounting groove. The top end of the compression spring is fixedly connected to the surface of the rotating column.

[0007] Preferably, the surface of the light-absorbing column is coated with a carbon nanotube film.

[0008] Preferably, the light source assembly includes a mounting box, the laser pointer is rotatably mounted inside the mounting box, and a spring telescopic rod is movably connected between the other end of the laser pointer and the inside of the mounting box. The surface of the laser pointer is provided with an annular groove. A first brushless motor is fixedly mounted inside the mounting box, and a cam is fixedly fitted onto the output end of the first brushless motor. The surface of the cam matches the annular groove. After the first brushless motor is started, the cam can be driven to rotate at a certain angle according to the output of the first brushless motor, thereby lifting the tail of the laser pointer to change the angle of the light projected by the laser pointer.

[0009] Preferably, the analysis component includes a host and a mobile shooting component. The host includes a display screen with an integrated computing chip, which is fixedly installed on the front of the darkroom. The mobile shooting component includes an electric lead screw, on which a camera device is fixedly installed. The electric lead screw is fixedly installed on the inner wall of the darkroom, and its installation height is the same as that of the light source component.

[0010] Preferably, the rotating assembly includes a second brushless motor, a mounting block is fixedly mounted on the side of the second brushless motor, the mounting block is fixedly mounted on the inner wall of the dark box, a drive gear is fixedly mounted on the output end of the second brushless motor, a rotating disk is meshed with the surface of the drive gear, the drive gear and the rotating disk are respectively rotatably mounted at the bottom of the inner cavity of the dark box, and the light-transmitting container body is placed on top of the rotating disk.

[0011] Compared with related technologies, the transparent container wall thickness detection device provided by the present invention has the following advantages:

[0012] This invention provides a device for detecting the wall thickness of a light-transmitting container. Light rays incident at an angle to the surface of the light-transmitting container undergo two refractions: one after passing through the medium of the container body, and the other after passing through the medium, forming a three-segment light ray. The thickness of the medium in the light-transmitting container body can be determined by the horizontal projection distance of the light ray in the medium. Furthermore, given the known length of the horizontally emitted light ray B, the percentage of light rays within the first medium relative to the total length of light ray A can be calculated, thus yielding the target wall thickness.

[0013] This invention provides a device for detecting the wall thickness of a transparent container, which uses a carbon nanotube film to absorb the light emitted by a laser pointer, thus avoiding interference caused by the reflection or diffuse reflection of the light emitted by the laser pointer through the light-absorbing column. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of the dark box of the present invention;

[0016] Figure 3 This is a schematic diagram of the positioning component structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the light source component structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the analysis component structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the rotating component structure of the present invention;

[0020] Figure 7 This is a schematic diagram illustrating the light beam A of the present invention;

[0021] Figure 8 This is a schematic diagram illustrating the light beam B of the present invention;

[0022] Figure 9 This is a schematic diagram of the synthesis of light rays A and B according to the present invention.

[0023] The diagram is labeled as follows: 1. Dark box; 2. Box lid; 3. Analysis component; 4. Positioning component; 5. Light source component; 6. Rotation component; 7. Transparent container body; 8. Ray A; 81. Ray outside the first container; 82. Ray inside the first medium; 83. Ray inside the first container; 9. Ray B; 91. Ray outside the second container; 92. Ray inside the second medium; 93. Ray inside the second container; 31. Electric lead screw; 32. Camera device; 41. Guide cylinder; 42. Rotating column; 43. Light-absorbing column; 44. Extrusion cone; 45. Extrusion spring; 50. Mounting box; 51. Laser pointer; 52. First brushless motor; 53. Cam; 54. Annular groove; 55. Spring telescopic rod; 61. Second brushless motor; 62. Mounting block; 63. Drive gear; 64. Rotating disk. Detailed Implementation

[0024] Example 1, by Figure 1-9 The present invention includes a dark box 1, a lid 2 on the top of the dark box 1, an analysis component 3 on the dark box 1, a positioning component 4 on the top of the lid 2, a light source component 5 fixedly installed on the side of the dark box 1, a rotating component 6 at the bottom of the inner cavity of the dark box 1, a light-transmitting container body 7 placed on the rotating component 6, and a laser pointer 51 including a laser pointer 51. The laser pointer 51 projects light A8 in a horizontal direction and light B9 at a certain downward angle deviating from the horizontal direction. Light A8 includes a first external light 81, a first internal light 82, and a first internal light 83. Light B9 includes a second external light 91, a second internal light 92, and a second internal light 93. The projection length of the second internal light 92 is equal to the length of the first internal light 82.

[0025] In this embodiment, since light rays incident perpendicular to the surface of the light-transmitting container body 7 do not refract, the thickness of the medium in the light-transmitting container body 7 cannot be determined. However, light rays incident at an angle to the surface of the light-transmitting container body 7 undergo two refractions: one when passing through the medium of the light-transmitting container body 7 and the other after passing through the medium, forming a three-segment light ray. The thickness of the medium in the light-transmitting container body 7 can be determined by the horizontal projection distance of the light ray in the medium of the light-transmitting container body 7. Furthermore, since the length of the horizontally emitted light ray B9 is known, the percentage of light ray 82 in the first medium relative to the total light ray A8 can be calculated, thereby obtaining the target wall thickness.

[0026] The positioning component 4 includes a guide cylinder 41, which is fixedly installed on the top of the box cover 2. A rotating column 42 is rotatably connected to the middle of the guide cylinder 41. A light-absorbing column 43 is fixedly installed at the bottom of the rotating column 42. A compression cone 44 is movably sleeved on the surface of the rotating column 42. A compression spring 45 is movably sleeved on the surface of the rotating column 42. The top of the compression cone 44 is provided with a mounting groove. The bottom of the compression spring 45 is fixedly connected to the inside of the mounting groove. The top of the compression spring 45 is fixedly connected to the surface of the rotating column 42.

[0027] In this embodiment, after the light-transmitting container body 7 is placed in the dark box 1, the box cover 2 is closed to ensure that there is no light inside. At the same time, the bottom end of the positioning component 4 is inserted into the bottle mouth of the dark box 1, and the squeezing cone 44 will rise a certain distance according to the size of the bottle mouth, thereby ensuring that the light-transmitting container body 7 is in the center position, which makes it easy to maintain and determine the length of the light A8.

[0028] The surface of the light-absorbing column 43 is coated with a thin film of carbon nanotubes.

[0029] In this embodiment, the carbon nanotube film can absorb more than 99% of the light, thus avoiding interference caused by the light emitted by the laser pointer 51 being reflected or diffusely reflected by the light-absorbing column 43.

[0030] The light source assembly 5 includes a mounting box 50. A laser pointer 51 is rotatably mounted inside the mounting box 50. A spring telescopic rod 55 is movably connected between the other end of the laser pointer 51 and the inside of the mounting box 50. The surface of the laser pointer 51 is provided with an annular groove 54. A first brushless motor 52 is fixedly mounted inside the mounting box 50. A cam 53 is fixedly fitted at the output end of the first brushless motor 52. The surface of the cam 53 matches the annular groove 54. After the first brushless motor 52 is started, it can drive the cam 53 to rotate a certain angle according to the output of the first brushless motor 52, thereby lifting the tail of the laser pointer 51 to change the angle of the light projected by the laser pointer 51.

[0031] Analysis component 3 includes a main unit and a moving shooting component. The main unit includes a display screen with an integrated computing chip. The display screen is fixedly installed on the front of the dark box 1. The moving shooting component includes an electric lead screw 31. A camera device 32 is fixedly installed on the moving nut surface of the electric lead screw 31. The electric lead screw 31 is fixedly installed on the inner wall of the dark box 1, and its installation height is the same as that of the light source component 5.

[0032] In this embodiment, the position of the camera device 32 can be adjusted by the electric lead screw 31 according to the diameter of the light-transmitting container body 7 or other requirements. The camera device 32 captures the light rays projected by the laser pointer 51, namely light rays A8 and B9, so that light rays A8 and B9 are combined into one image, and then the computing chip calculates the final result.

[0033] The rotating assembly 6 includes a second brushless motor 61, a mounting block 62 is fixedly mounted on the side of the second brushless motor 61, the mounting block 62 is fixedly mounted on the inner wall of the dark box 1, a drive gear 63 is fixedly mounted on the output end of the second brushless motor 61, a rotating disk 64 is meshed with the surface of the drive gear 63, the drive gear 63 and the rotating disk 64 are respectively rotatably mounted at the bottom of the inner cavity of the dark box 1, and the light-transmitting container body 7 is placed on top of the rotating disk 64.

[0034] In this embodiment, the rotating component 6 can be used to rotate the rotating disk 64 after completing one calculation, thereby driving the light-transmitting container body 7 to rotate, so as to perform multiple tests at different positions. Since the spring force of the compression spring 45 compresses the light-transmitting container body 7 through the compression cone 44, the friction between the light-transmitting container body 7 and the rotating disk 64 is relatively large. However, the top of the rotating column 42 is connected to the guide cylinder 41 through a bearing, resulting in low friction. Therefore, the rotating disk 64 can drive the light-transmitting container body 7 to rotate.

[0035] Working principle: When light rays are incident on the surface of the light-transmitting container body 7 at an angle, they are refracted twice, once when passing through the medium of the light-transmitting container body 7 and once after passing through the medium of the light-transmitting container body 7, forming a three-segment light ray. The thickness of the medium of the light-transmitting container body 7 can be obtained by using the horizontal projection distance of the light ray in the middle of the medium. Since the length of the horizontally emitted light ray B9 is known, the percentage of the light ray 82 in the first medium to the total light ray A8 can be calculated, thereby obtaining the target wall thickness.

Claims

1. A device for detecting the wall thickness of a transparent container, comprising a dark box (1), characterized in that: The top of the dark box (1) is covered with a lid (2). The dark box (1) is equipped with an analysis component (3). The top of the lid (2) is equipped with a positioning component (4). The side of the dark box (1) is fixedly installed with a light source component (5). The bottom of the inner cavity of the dark box (1) is equipped with a rotating component (6). A light-transmitting container body (7) is placed on the rotating component (6). The light source component (5) includes a laser pointer (51). The laser pointer (51) projects light A (8) in a horizontal direction. The laser pointer (51) projects light B (9) at a certain angle downward in a direction biased from the horizontal direction. The light A (8) includes a first container external light (81), a first medium internal light (82) and a first container internal light (83). The light B (9) includes a second container external light (91), a second medium internal light (92) and a second container internal light (93). The projection length of the second medium internal light (92) is equal to the length of the first medium internal light (82). The positioning component (4) includes a guide cylinder (41), which is fixedly installed on the top of the box cover (2). A rotating column (42) is rotatably connected to the middle of the guide cylinder (41). A light-absorbing column (43) is fixedly installed at the bottom of the rotating column (42). A compression cone (44) is movably sleeved on the surface of the rotating column (42). A compression spring (45) is movably sleeved on the surface of the rotating column (42). The top of the compression cone (44) is provided with an installation groove. The bottom of the compression spring (45) is fixedly connected to the inside of the installation groove. The top of the compression spring (45) is fixedly connected to the surface of the rotating column (42). The light source assembly (5) includes a mounting box (50). The laser pointer (51) is rotatably mounted inside the mounting box (50). A spring telescopic rod (55) is movably connected between the other end of the laser pointer (51) and the inside of the mounting box (50). The surface of the laser pointer (51) is provided with an annular groove (54). A first brushless motor (52) is fixedly mounted inside the mounting box (50). A cam (53) is fixedly fitted on the output end of the first brushless motor (52). The surface of the cam (53) matches the annular groove (54). After the first brushless motor (52) is started, it can drive the cam (53) to rotate a certain angle according to the output of the first brushless motor (52), thereby lifting the tail of the laser pointer (51) to change the angle of the light projected by the laser pointer (51).

2. The device for detecting the wall thickness of a transparent container according to claim 1, characterized in that, The surface of the light-absorbing column (43) is coated with a carbon nanotube film.

3. The device for detecting the wall thickness of a transparent container according to claim 1, characterized in that, The analysis component (3) includes a host and a mobile shooting component. The host includes a display screen with an integrated computing chip. The display screen is fixedly installed on the front of the dark box (1). The mobile shooting component includes an electric lead screw (31). A camera device (32) is fixedly installed on the surface of the moving nut of the electric lead screw (31). The electric lead screw (31) is fixedly installed on the inner wall of the dark box (1), and its installation height is the same as the installation height of the light source component (5).

4. The device for detecting the wall thickness of a transparent container according to claim 1, characterized in that, The rotating assembly (6) includes a second brushless motor (61), a mounting block (62) is fixedly installed on the side of the second brushless motor (61), the mounting block (62) is fixedly installed on the inner wall of the dark box (1), the output end of the second brushless motor (61) is fixedly fitted with a drive gear (63), the surface of the drive gear (63) meshes with a rotating disk (64), the drive gear (63) and the rotating disk (64) are respectively rotatably installed at the bottom of the inner cavity of the dark box (1), and the light-transmitting container body (7) is placed on top of the rotating disk (64).

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