A polarizing film filtering and reflecting mechanism

Abstract

The present invention discloses a polarizing plate filtering and reflecting mechanism, comprising an L-shaped mounting plate, a mounting seat fixedly mounted on the inner wall of the rear side of the L-shaped mounting plate, trapezoidal connecting plates fixedly mounted on both sides of the top of the mounting seat, a same first mounting plate fixedly mounted on the rear sides of the two trapezoidal connecting plates, a second mounting plate fixedly mounted on the rear side of the first mounting plate, a stepping motor threadedly fixed on one side of the top of the mounting seat, the stepping motor being located on a side of one of the two trapezoidal connecting plates away from the other trapezoidal connecting plate, the bottom end of the output shaft of the stepping motor extending to the bottom of the mounting seat and fixed with a first transmission synchronous wheel. The present invention is reasonably designed, convenient for timely screening and filtering of reflected light, so that unnecessary interfering light can be filtered out, and useless light spots caused by certain materials or irradiation directions of products caused by vibration of emitted light in all directions are avoided, thereby improving detection accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of polaroid filter reflection mechanism, in particular to a polaroid filter reflection mechanism. Background Art

[0002] With the rapid development of industrial automation, visual inspection is no longer a simple size inspection, presence inspection, character reading, etc. The detection of appearance defects (such as scratches, dents, bulges, etc.) of a large number of industrial products has become the mainstream and bottleneck of the industry. How to quickly, accurately and comprehensively identify these appearance defects has become an urgent problem to be solved.

[0003] With the rapid development of contemporary science and technology, the application of polarized light technology has played an important role in the field of industrial automation. In essence, when natural light passes through or is projected onto the surface of certain objects, its projected light or reflected light or scattered light may be restricted to vibrate in a certain vertical plane, while the vibrations in other directions are greatly weakened or even completely eliminated. This light wave that only vibrates in a certain plane is called polarized light. In industrial automation applications, visual inspection has been fully integrated into it. We are always inextricably linked to optical applications, which further reflects the importance of polarized light applications in the field of automation.

[0004] In traditional visual inspection, most of them use non-polarized light sources. Non-polarized light sources are not convenient for filtering unnecessary interfering light. The light emitted by this light source vibrates in all directions, which leads to useless light spots caused by certain materials of the product or the irradiation direction, which seriously affects the inspection results and cannot meet the use requirements. Therefore, we propose a polarizer filtering reflective mechanism to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a polarizing plate filtering reflection mechanism.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A polarizing plate filtering and reflecting mechanism comprises an L-shaped mounting plate, a mounting seat is fixedly mounted on the inner wall of the rear side of the L-shaped mounting plate, trapezoidal connecting plates are fixedly mounted on both sides of the top of the mounting seat, the same first mounting plate is fixedly mounted on the rear sides of the two trapezoidal connecting plates, a second mounting plate is fixedly mounted on the rear side of the first mounting plate, a stepping motor is threadedly fixed on one side of the top of the mounting seat, the stepping motor is located on a side of one of the two trapezoidal connecting plates away from the other trapezoidal connecting plate, the bottom end of the output shaft of the stepping motor extends to the bottom of the mounting seat and is fixed with a first transmission synchronous wheel, a plurality of first mounting holes with openings on the front side are opened on the top of the first mounting plate, a camera is threadedly fixed on the inner wall of the rear side of the first mounting hole, and the bottom of the camera extends to the bottom of the first mounting plate A lens is fixedly installed on the square, a plurality of first circular holes are opened on the top of the mounting seat, and the plurality of first circular holes are arranged in one-to-one correspondence with the plurality of first mounting holes, a rotating shaft is rotatably installed in the first circular hole, the top end of the rotating shaft extends to the top of the mounting seat and a polarizer is fixedly installed, the bottom end of the rotating shaft extends to the bottom of the mounting seat and a polarizer is fixedly installed, a second transmission synchronous wheel located below the mounting seat is fixedly sleeved on the rotating shaft, the second transmission synchronous wheel is located above the corresponding polarizer, two adjacent second transmission synchronous wheels are transmission-installed, a second transmission synchronous wheel located on the leftmost side of the plurality of second transmission synchronous wheels is transmission-installed with the first transmission synchronous wheel, an integrated annular light source is fixedly installed on the bottom inner wall of the L-shaped mounting plate, and the plurality of polarizers are all located above the integrated annular light source.

[0008] Preferably, a plurality of second circular holes are formed on the top of the integrated annular light source, and the plurality of second circular holes are arranged in one-to-one correspondence with the plurality of polarizers.

[0009] Preferably, a bearing is fixedly sleeved in the first circular hole, and the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding rotating shaft.

[0010] Preferably, two adjacent second transmission synchronous wheels are transmission-connected with the same first belt, the two adjacent first belts are staggered, and the two adjacent second transmission synchronous wheels are installed through the corresponding first belt transmission.

[0011] Preferably, the first transmission synchronous wheel and the second transmission synchronous wheel are transmission-connected with the same second belt, and the first transmission synchronous wheel and the second transmission synchronous wheel are installed through the second belt transmission.

[0012] Preferably, a plurality of reserved installation holes are provided on the rear side of the second installation plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] Through the L-shaped mounting plate, the mounting seat, the trapezoidal connecting plate, the first mounting plate, the second mounting plate, the stepping motor, the first transmission synchronous wheel, the first mounting hole, the integrated annular light source, the first circular hole, the camera, the lens, the polarizer, the second transmission synchronous wheel and the analyzer, when the integrated annular light source is powered on and emits light, all aspects of the light vibrate, and the emitted light is reflected to the analyzer through the polarizer. At this time, the stepping motor is started to drive multiple second transmission synchronous wheels to rotate simultaneously through the first transmission synchronous wheel, the second belt and the first belt, and the second transmission synchronous wheel drives the analyzer to rotate through the corresponding rotating shaft and screens and filters the reflected light.

[0015] The invention is reasonably designed and is convenient for timely screening and filtering of reflected light, so that unnecessary interfering light can be filtered out, and useless light spots caused by certain materials of the product or irradiation directions caused by the emitted light vibrating in all directions are avoided, thereby improving detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the three-dimensional structure of a polarizing plate filtering and reflecting mechanism proposed by the present invention;

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the stepping motor, the trapezoidal connecting plate, the first transmission synchronous wheel, the first mounting plate, the second mounting plate and the mounting seat connecting member;

[0018] Figure 3 for Figure 2 A side view structural schematic diagram of;

[0019] Figure 4 for Figure 2 Schematic diagram of the top view of the middle mounting seat.

[0020] In the figure: 1 L-shaped mounting plate, 2 mounting seat, 3 trapezoidal connecting plate, 4 first mounting plate, 5 second mounting plate, 6 stepping motor, 7 first transmission synchronous wheel, 8 first mounting hole, 9 integrated annular light source, 10 first circular hole, 11 camera, 12 lens, 13 polarizer, 14 second transmission synchronous wheel, 15 analyzer. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] Reference Figure 1-4, a polarizing plate filtering and reflecting mechanism, comprising an L-shaped mounting plate 1, a mounting seat 2 is fixedly mounted on the inner wall of the rear side of the L-shaped mounting plate 1, trapezoidal connecting plates 3 are fixedly mounted on both sides of the top of the mounting seat 2, the same first mounting plate 4 is fixedly mounted on the rear sides of the two trapezoidal connecting plates 3, a second mounting plate 5 is fixedly mounted on the rear side of the first mounting plate 4, a stepping motor 6 is threadedly fixed on one side of the top of the mounting seat 2, the stepping motor 6 is located on the side of one of the two trapezoidal connecting plates 3 away from the other trapezoidal connecting plate 3, the bottom end of the output shaft of the stepping motor 6 extends to the bottom of the mounting seat 2 and is fixed with a first transmission synchronous wheel 7, a plurality of first mounting holes 8 with openings on the front side are opened on the top of the first mounting plate 4, a camera 11 is threadedly fixed on the inner wall of the rear side of the first mounting hole 8, the bottom of the camera 11 extends to the bottom of the first mounting plate 4 and is fixedly mounted with a lens 12, a plurality of first circular holes 10 are opened on the top of the mounting seat 2, and the plurality of first circular holes 10 and the plurality of first mounting holes 10 are connected to the plurality of first mounting holes 10. The mounting holes 8 are arranged in a one-to-one correspondence, a rotating shaft is rotatably installed in the first circular hole 10, the top end of the rotating shaft extends to the top of the mounting seat 2 and is fixedly installed with a polarizer 15, the bottom end of the rotating shaft extends to the bottom of the mounting seat 2 and is fixedly installed with a polarizer 13, a second transmission synchronous wheel 14 located below the mounting seat 2 is fixedly sleeved on the rotating shaft, the second transmission synchronous wheel 14 is located above the corresponding polarizer 13, two adjacent second transmission synchronous wheels 14 are transmission-installed, and the second transmission synchronous wheel 14 located on the leftmost of the multiple second transmission synchronous wheels 14 is transmission-installed with the first transmission synchronous wheel 7, an integrated annular light source 9 is fixedly installed on the bottom inner wall of the L-shaped mounting plate 1, and multiple polarizers 13 are all located above the integrated annular light source 9. The design of the present invention is reasonable, which is convenient for timely screening and filtering of reflected light, so that unnecessary interfering light can be filtered out, and useless light spots caused by certain materials or irradiation directions of the product caused by vibration of the emitted light in all directions are avoided, thereby improving the detection accuracy.

[0023] In the present invention, a plurality of second circular holes are provided on the top of the integrated annular light source 9, and the plurality of second circular holes are arranged in one-to-one correspondence with the plurality of polarizers 13. A bearing is fixedly sleeved in the first circular hole 10, and the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding rotating shaft. The two adjacent second transmission synchronous wheels 14 are transmission-connected with the same first belt, and the two adjacent first belts are staggered. The two adjacent second transmission synchronous wheels 14 are installed by corresponding first belt transmission. The first transmission synchronous wheel 7 and a second transmission synchronous wheel 14 are transmission-connected with the same second belt, and the first transmission synchronous wheel 7 and a second transmission synchronous wheel 14 are installed by second belt transmission. A plurality of installation reserved holes are provided on the rear side of the second mounting plate 5. The present invention is reasonably designed, and it is convenient to screen and filter the reflected light in time, so that unnecessary interfering light can be filtered out, and useless light spots caused by certain materials or irradiation directions of the product are avoided to be caused by the vibration of the emitted light in all directions, thereby improving the detection accuracy.

[0024] Working principle: When the integrated annular light source 9 is powered on and emits light, the light vibrates in all directions. After the emitted light is reflected on the polarizer 13, the light is converted into single-direction vibration. After the conversion, the light is reflected on the analyzer 15. At this time, the stepper motor 6 is started, and the output shaft of the stepper motor 6 drives the first transmission synchronous wheel 7 to rotate. The first transmission synchronous wheel 7 drives a second transmission synchronous wheel 14 located on the left side to rotate through the second belt. The second transmission synchronous wheel 14 drives the second transmission synchronous wheel 14 adjacent to it to rotate through the corresponding first belt, and so on, so that multiple second transmission synchronous wheels 14 rotate at the same time, the second transmission synchronous wheel 14 drives the corresponding rotating shaft to rotate, and the rotating shaft drives the corresponding analyzer 15 to rotate. The analyzer 15 rotates and filters the reflected light while screening and filtering, so that the reflected light can be screened and filtered in time, so that unnecessary interference light can be filtered out.

[0025] In the description of this utility, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, a mechanical connection, an electrical connection, a direct connection, or a connection through an intermediate medium, or the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility can be understood according to specific circumstances.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polarizing plate filtering and reflecting mechanism, comprising an L-shaped mounting plate (1), a mounting seat (2) being fixedly mounted on the rear inner wall of the L-shaped mounting plate (1), characterized in that: Trapezoidal connecting plates (3) are fixedly mounted on both sides of the top of the mounting seat (2); a first mounting plate (4) is fixedly mounted on the rear sides of the two trapezoidal connecting plates (3); a second mounting plate (5) is fixedly mounted on the rear side of the first mounting plate (4); a stepping motor (6) is threadedly fixed on one side of the top of the mounting seat (2); the stepping motor (6) is located on a side of one of the two trapezoidal connecting plates (3) away from the other trapezoidal connecting plate (3); the bottom end of the output shaft of the stepping motor (6) extends to the mounting seat A first transmission synchronous wheel (7) is fixed below the mounting base (2), a plurality of first mounting holes (8) with openings on the front side are provided on the top of the first mounting plate (4), a camera (11) is threadedly fixed on the inner wall of the rear side of the first mounting hole (8), the bottom of the camera (11) extends to the bottom of the first mounting plate (4) and a lens (12) is fixedly installed thereon, a plurality of first circular holes (10) are provided on the top of the mounting base (2), the plurality of first circular holes (10) are arranged in one-to-one correspondence with the plurality of first mounting holes (8), and the first circular holes (10) is rotatably mounted with a rotating shaft, the top end of the rotating shaft extends to the top of the mounting seat (2) and is fixedly mounted with a polarizer (15), the bottom end of the rotating shaft extends to the bottom of the mounting seat (2) and is fixedly mounted with a polarizer (13), a second transmission synchronous wheel (14) located below the mounting seat (2) is fixedly sleeved on the rotating shaft, the second transmission synchronous wheel (14) is located above the corresponding polarizer (13), two adjacent second transmission synchronous wheels (14) are transmission-mounted, and the leftmost second transmission synchronous wheel (14) is located on the left side of the plurality of second transmission synchronous wheels (14). A second transmission synchronous wheel (14) is installed in transmission with the first transmission synchronous wheel (7); an integrated annular light source (9) is fixedly installed on the inner wall of the bottom of the L-shaped installation plate (1); a plurality of polarizers (13) are located above the integrated annular light source (9); a plurality of second circular holes are provided on the top of the integrated annular light source (9); the plurality of second circular holes are arranged in one-to-one correspondence with the plurality of polarizers (13); a bearing is fixedly sleeved in the first circular hole (10); and the inner ring of the bearing is fixedly sleeved with the outer side of the corresponding rotating shaft.

2. A polarizing plate filtering and reflecting mechanism according to claim 1, characterized in that: Two adjacent second transmission synchronous wheels (14) are transmission-connected with the same first belt, the two adjacent first belts are arranged alternately, and the two adjacent second transmission synchronous wheels (14) are installed through the corresponding first belt transmission.

3. A polarizing plate filtering and reflecting mechanism according to claim 1, characterized in that: The first transmission synchronous wheel (7) and a second transmission synchronous wheel (14) are transmission-connected via a same second belt, and the first transmission synchronous wheel (7) and a second transmission synchronous wheel (14) are installed via the second belt transmission.

4. The polarizing plate filtering and reflecting mechanism according to claim 1, characterized in that: A plurality of reserved installation holes are provided on the rear side of the second installation plate (5).

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