Perfluoropolyether product quality automatic sorting device

Abstract

The utility model relates to the technical field of perfluoropolyether, and discloses a perfluoropolyether product quality automatic sorting device which comprises a conveying device and a plurality of groups of guide mechanisms arranged on the conveying device, and the axial limiting of the conveying of bottled perfluoropolyether is realized through the guide mechanisms; the light shield is installed on the upper middle portion of the conveying device, the light supplementing mechanism and the light polarizing mechanism are symmetrically arranged on the two sides of an inner cavity of the light shield, and a CMOS camera is arranged on one side of the inner cavity of the light shield; through the cooperation of the light shield, the light supplementing mechanism, the CMOS camera and the polarization mechanism, the light supplementing mechanism provides uniform and concentrated light rays to ensure that liquid in the bottle is fully illuminated, and a polaroid in the polarization mechanism adjusts the angle through rotation to filter reflected light and scattered light in a specific direction, so that the interference of reflection and refraction of a bottle body is reduced, and the stability of the bottle body is improved. The optical difference between the impurities and the pure liquid is highlighted, so that the recognition precision of the CMOS camera on the impurities is improved, and the efficient optical detection on the impurities in the bottled perfluoropolyether is realized.

Description

Technical Field

[0001] This utility model relates to the field of perfluoropolyether technology, specifically to an automatic sorting device for perfluoropolyether products. Background Technology

[0002] Perfluoropolyether (PFPE) is a high-performance synthetic oil with excellent chemical inertness, thermal stability and low volatility. It is widely used in aerospace, semiconductor manufacturing, precision machinery lubrication and vacuum equipment. PFPE lubricants can meet the high temperature and high load application requirements in the machinery and automotive industries. Its high stability and good anti-wear ability make PFPE oils and greases suitable as lubricants for long service cycles and harsh operating conditions.

[0003] After production, perfluoropolyether is initially filled into transparent bottles for appearance inspection. Traditional inspection methods usually use optical inspection. Since PFPE is usually a colorless and transparent liquid, and common impurities may have a refractive index close to it, it is difficult to distinguish them using traditional transmitted or reflected light imaging. Therefore, we need to propose an automatic sorting device for perfluoropolyether product quality. Utility Model Content

[0004] The purpose of this invention is to provide an automatic sorting device for perfluoropolyether products. By adding a polarization angle adjustment mechanism to the optical detection structure, the light generated by the LED can be polarized, thereby causing the light illuminating the impurities to be deflected. This facilitates the acquisition of multiple sets of polarized images, enabling rapid detection of impurities in the perfluoropolyether. This, in turn, facilitates the sorting of perfluoropolyether containing impurities and improves the sorting efficiency of perfluoropolyether, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic sorting device for perfluoropolyether products, comprising:

[0006] The conveying device, and multiple sets of guiding mechanisms installed on the conveying device, achieve axial limiting of the conveying of bottled perfluoropolyether through the guiding mechanisms;

[0007] A light shield installed in the middle of the conveying device, and a supplementary light mechanism and a polarizing light mechanism symmetrically arranged on both sides of the inner cavity of the light shield. A CMOS camera is arranged on one side of the inner cavity of the light shield. The CMOS camera, the supplementary light mechanism and the polarizing light mechanism are all arranged on the same axis to realize the optical detection of impurities in perfluoropolyether.

[0008] The polarizing mechanism includes a substrate fixed to one side of the inner cavity of the light shield, a motor is mounted on the substrate, the output shaft of the motor is driven to a rotating shaft passing through the substrate, and a polarizing element is mounted on the lower end of the rotating shaft.

[0009] Preferably, the polarizing element includes a bracket, in which a polarizer is embedded, and the top of the bracket is threaded with two sets of locking bolts that abut against the top of the polarizer. The bracket is installed at the lower end of the rotating shaft.

[0010] Preferably, a feeding mechanism is provided on one side of the light shield, and photoelectric switches for sensing bottled perfluoropolyether are provided on both sides of the light shield.

[0011] Preferably, the feeding mechanism includes a vertical plate installed on one side of the light shield, an electric push rod is provided on one side of the vertical plate, the telescopic end of the electric push rod passes through the vertical plate and is fixedly connected to a push plate, two sets of guide rods passing through the vertical plate are fixedly connected on one side of the push plate, and the conveying device is provided with a feeding hopper for feeding bottled perfluoropolyether.

[0012] Preferably, the supplementary lighting mechanism includes a light guide box installed on the other side of the inner cavity of the light shield. The side of the light guide box near the polarizer is open. An LED light board is installed on one side of the inner cavity of the light guide box. Light focusing plates are provided on both other sides of the inner cavity of the light guide box. The inner cavity of the light guide box forms an isosceles trapezoidal light channel through the two sets of light focusing plates.

[0013] Preferably, the light shield has side holes on both sides for bottled perfluoropolyether to pass through, and a control panel electrically connected to a photoelectric switch, a CMOS camera and a motor is provided on the side of the light shield adjacent to the side holes.

[0014] Preferably, the guiding mechanism includes two sets of mounting angle plates and two sets of guide plates, and multiple sets of spring components are provided on the opposite side of each of the two sets of mounting angle plates. The opposite side of each of the two sets of guide plates is fixed to one end of the multiple sets of spring components. Each set of spring components is composed of a telescopic rod and a return spring.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention mainly utilizes the cooperation between a light shield, a supplementary lighting mechanism, a CMOS camera, and a polarizing mechanism. The supplementary lighting mechanism provides uniform and concentrated light to ensure that the liquid inside the bottle is fully illuminated. The polarizer in the polarizing mechanism adjusts its angle by rotation to filter reflected and scattered light from specific directions, reducing reflection and refraction interference from the bottle body and highlighting the optical difference between impurities and pure liquid. This improves the accuracy of the CMOS camera in identifying impurities, thus achieving efficient optical detection of impurities in bottled perfluoropolyether. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the conveying device and guiding mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the light shield of this utility model;

[0020] Figure 4 This is a schematic diagram of the feeding mechanism of this utility model.

[0021] In the diagram: 1. Conveying device; 2. Guiding mechanism; 21. Mounting angle plate; 22. Spring component; 221. Telescopic rod; 222. Return spring; 23. Guide plate; 3. Light shield; 4. Control panel; 5. Photoelectric switch; 6. Unloading mechanism; 61. Vertical plate; 62. Electric push rod; 63. Push plate; 64. Guide rod; 7. Unloading hopper; 8. Light supplementing mechanism; 81. Light guide box; 82. LED light board; 83. Focusing plate; 9. CMOS camera; 10. Side hole; 11. Polarizing mechanism; 111. Substrate; 112. Motor; 113. Rotating shaft; 114. Locking bolt; 115. Polarizing film; 116. Bracket. Detailed Implementation

[0022] 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 protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: an automatic sorting device for perfluoropolyether products, comprising:

[0024] The conveying device 1 and the multiple sets of guiding mechanisms 2 installed on the conveying device 1 achieve axial limiting of the conveying of bottled perfluoropolyether through the guiding mechanisms 2;

[0025] A light shield 3 is installed in the middle of the conveying device 1, and a supplementary light mechanism 8 and a polarizing light mechanism 11 are symmetrically arranged on both sides of the inner cavity of the light shield 3. A CMOS camera 9 is arranged on one side of the inner cavity of the light shield 3. The CMOS camera 9, the supplementary light mechanism 8 and the polarizing light mechanism 11 are all arranged on the same axis to realize the optical detection of impurities in perfluoropolyether.

[0026] The polarizing mechanism 11 includes a substrate 111 fixed to one side of the inner cavity of the light shield 3. A motor 112 is provided on the substrate 111. The output shaft of the motor 112 is connected to a rotating shaft 113 that passes through the substrate 111. A polarizing element is installed at the lower end of the rotating shaft 113.

[0027] The polarizing element includes a bracket 116, within which a polarizer 115 is embedded. Two sets of locking bolts 114 are threaded onto the top of the bracket 116, contacting the top of the polarizer 115. The bracket 116 is mounted on the lower end of the rotating shaft 113. The locking bolts 114 facilitate the installation and removal of the polarizer 115 on the bracket 116, improving the ease of installation and removal. Simultaneously, the polarizer 115 rotates under the drive of the motor 112, adjusting the polarization angle of the incident light. By changing the polarization direction, reflections from the liquid surface and refraction interference from the bottle can be effectively filtered, allowing the CMOS camera to capture clearer images of impurities and improving detection accuracy.

[0028] A feeding mechanism 6 is provided on one side of the light shield 3, and photoelectric switches 5 that sense bottled perfluoropolyether are provided on both sides of the light shield 3. After the photoelectric switch 5 senses that the bottled product has entered the light shield 3, it automatically triggers the supplementary lighting, polarization and shooting process to form a closed-loop detection, ensuring the automation of the detection process and reducing manual intervention.

[0029] The feeding mechanism 6 includes a vertical plate 61 installed on one side of the light shield 3. An electric push rod 62 is provided on one side of the vertical plate 61. The telescopic end of the electric push rod 62 passes through the vertical plate 61 and is fixedly connected to a push plate 63. Two sets of guide rods 64 passing through the vertical plate 61 are fixedly connected to one side of the push plate 63. The conveying device 1 is provided with a feeding hopper 7 for feeding bottled perfluoropolyether. The electric push rod 62 can drive the push plate 63 to push unqualified products into the feeding hopper 7, thereby facilitating the collection and processing of unqualified products.

[0030] The supplementary lighting mechanism 8 includes a light guide box 81 installed on the other side of the inner cavity of the light shield 3. The side of the light guide box 81 near the polarizer 115 is open. An LED light panel 82 is installed on one side of the inner cavity of the light guide box 81. A light focusing plate 83 is provided on both other sides of the inner cavity of the light guide box 81. The inner cavity of the light guide box 81 forms an isosceles trapezoidal light channel through the two sets of light focusing plates 83. The light emitted by the LED light panel forms an isosceles trapezoidal light channel in the light guide box 81 through the light focusing plate 83, so that the light is evenly and concentratedly irradiated onto the bottled perfluoropolyether, reducing ambient light interference, enhancing light intensity and stability, and making it easier to highlight impurities in the liquid.

[0031] Both sides of the light shield 3 are provided with side holes 10 for bottled perfluoropolyether to pass through. The side of the light shield 3 adjacent to the side holes 10 is provided with a control panel 4 that is electrically connected to the photoelectric switch 5, the CMOS camera 9 and the motor 112. The CMOS camera is coaxially arranged with the supplementary lighting mechanism 8 and the polarizing mechanism 11 to ensure that the shooting angle is consistent with the light propagation path and to obtain clear and distortion-free images.

[0032] The guiding mechanism 2 includes two sets of mounting angle plates 21 and two sets of guide plates 23. Each set of mounting angle plates 21 has multiple sets of springs 22 on one side of its opposite side. Each set of guide plates 23 is fixed to one end of the multiple sets of springs 22 on one side of its opposite side. Each set of springs 22 is composed of a telescopic rod 221 and a return spring 222 to ensure that bottled perfluoropolyether is transported smoothly along a fixed path.

[0033] In use, bottled perfluoropolyether is transported by conveying device 1. The guide mechanism 2 uses the elastic force of spring 22 to axially limit the bottle body, ensuring that it is transported smoothly along a fixed path. When the bottle body enters the light shield 3 through the side hole 10, the photoelectric switch 5 senses the signal and transmits the information to the control panel 4. The control panel 4 then activates the supplementary light mechanism 8 and the polarizing mechanism 11.

[0034] During impurity detection, the LED light panel of the supplementary lighting mechanism 8 emits light, which forms an isosceles trapezoidal light channel in the light guide box 81 through the light focusing plate 83, providing stable and uniform light for detection. At the same time, the motor 112 of the polarizing mechanism 11 drives the rotating shaft 113 to rotate the polarizer 115, adjusting the polarization angle of the incident light and reducing interference from bottle reflection and liquid refraction. Under stable light and appropriate polarization conditions, the CMOS camera captures an image of the perfluoropolyether inside the bottle, capturing impurities. If impurities are detected, the control panel 4 controls the electric push rod 62 of the feeding mechanism 6 to extend, and pushes the unqualified product into the feeding hopper 7 through the push plate 63 and guide rod 64 to complete the sorting. If the product is qualified, it continues to move forward with the conveyor device 1, thereby realizing the automated quality detection and sorting of perfluoropolyether products.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic sorting device for perfluoropolyether products, characterized in that, include: The conveying device (1) and multiple sets of guiding mechanisms (2) installed on the conveying device (1) achieve axial limiting of the conveying of bottled perfluoropolyether through the guiding mechanisms (2); A light shield (3) is installed in the middle of the conveying device (1), and a supplementary light mechanism (8) and a polarizing light mechanism (11) are symmetrically arranged on both sides of the inner cavity of the light shield (3). A CMOS camera (9) is provided on one side of the inner cavity of the light shield (3). The CMOS camera (9), the supplementary light mechanism (8) and the polarizing light mechanism (11) are all arranged on the same axis to realize the optical detection of impurities in perfluoropolyether. The polarizing mechanism (11) includes a substrate (111) fixed on one side of the inner cavity of the light shield (3). A motor (112) is provided on the substrate (111). The output shaft of the motor (112) is connected to a rotating shaft (113) that passes through the substrate (111). A polarizing element is installed at the lower end of the rotating shaft (113).

2. The automatic sorting device for perfluoropolyether products according to claim 1, characterized in that: The polarizing element includes a bracket (116), in which a polarizer (115) is embedded. The top of the bracket (116) is threaded with two sets of locking bolts (114) that abut against the top of the polarizer (115). The bracket (116) is installed at the lower end of the rotating shaft (113).

3. The automatic sorting device for perfluoropolyether products according to claim 2, characterized in that: A feeding mechanism (6) is provided on one side of the light shield (3), and photoelectric switches (5) for sensing bottled perfluoropolyether are provided on both sides of the light shield (3).

4. The automatic sorting device for perfluoropolyether products according to claim 3, characterized in that: The feeding mechanism (6) includes a vertical plate (61) installed on one side of the light shield (3). An electric push rod (62) is provided on one side of the vertical plate (61). The telescopic end of the electric push rod (62) passes through the vertical plate (61) and is fixedly connected to a push plate (63). Two sets of guide rods (64) passing through the vertical plate (61) are fixedly connected on one side of the push plate (63). A feeding hopper (7) for feeding bottled perfluoropolyether is provided on the conveying device (1).

5. The automatic sorting device for perfluoropolyether products according to claim 4, characterized in that: The supplementary lighting mechanism (8) includes a light guide box (81) installed on the other side of the inner cavity of the light shield (3). The side of the light guide box (81) near the polarizer (115) is open. An LED light board (82) is installed on one side of the inner cavity of the light guide box (81). A light-concentrating plate (83) is provided on both other sides of the inner cavity of the light guide box (81). The inner cavity of the light guide box (81) forms an isosceles trapezoidal light channel through the two sets of light-concentrating plates (83).

6. The automatic sorting device for perfluoropolyether products according to claim 5, characterized in that: Both sides of the light shield (3) are provided with side holes (10) for bottled perfluoropolyether to pass through. The side of the light shield (3) adjacent to the side hole (10) is provided with a control panel (4) electrically connected to the photoelectric switch (5), CMOS camera (9) and motor (112).

7. The automatic sorting device for perfluoropolyether products according to claim 1, characterized in that: The guide mechanism (2) includes two sets of mounting angle plates (21) and two sets of guide plates (23). Each set of mounting angle plates (21) has multiple sets of spring members (22) on one side. Each set of guide plates (23) is fixed to one end of the multiple sets of spring members (22) on one side. Each set of spring members (22) is composed of a telescopic rod (221) and a return spring (222).

Images