Glossiness detection device for polyethylene film production
By designing clamping and rotating components, combined with a black velvet frame and black glass, uniform background light is provided, solving the problems of flatness and transmitted light interference in polyethylene film inspection. This enables full-width, blind-angle-free inspection, improving the accuracy and applicability of the inspection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI SHUNQIANXIANG NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-19
AI Technical Summary
Existing polyethylene film gloss testing devices are only suitable for testing hard materials under single-angle light illumination, which cannot ensure the flatness of polyethylene films, and lack rotation and movement structures, resulting in low applicability.
Using a clamping assembly and a rotating assembly, uniform tension control of the film is achieved by using a clamping arm and a bidirectional screw driven by a DC motor. A dark chamber environment is provided by a black velvet frame and black glass, and uniform background light is provided by equally spaced white LEDs. Multi-point sampling is performed in conjunction with the rotating assembly and optical sensors to achieve full-width detection.
It enables flatness inspection of polyethylene film, avoids interference from transmitted light and collapse of soft materials, ensures full-width inspection without blind spots, and improves the accuracy and applicability of the inspection.
Smart Images
Figure CN224263080U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of polyethylene film testing technology, and in particular to a gloss testing device for polyethylene film production. Background Technology
[0002] The gloss testing equipment used in polyethylene film production mainly includes plastic film gloss testers and gloss meters. These devices are used to measure the gloss of the polyethylene film surface to ensure that the product quality meets the standards.
[0003] A search revealed that CN220455166U discloses a gloss meter that is placed on the surface of the material to be tested and sealed with a gasket to measure the gloss of the material. However, during the measurement process, when dust is present on the surface of the material, the device cannot automatically clean the dust, which affects the measurement results and leads to poor performance of the device. This invention addresses this issue by setting up an electric slide rail, a slider, a linkage rod, and a silicone roller. The electric slide rail drives the linkage rod to move via the slider, and the linkage rod drives the silicone roller to move, which can automatically adsorb and clean the dust at the workpiece detection position.
[0004] Regarding the aforementioned technologies, the inventors believe that the following technical defects exist and need to be improved: the above-mentioned device is only applicable to light illumination detection of hard materials at a single angle, and for soft materials such as polyethylene film, the above-mentioned device cannot ensure the flatness of the film, and no related rotating or moving structure is added to achieve full-width detection effect, resulting in low applicability. Utility Model Content
[0005] This application provides a gloss testing device for polyethylene film production to improve the following technical problems: the above-mentioned device is only applicable to light irradiation testing of hard materials at a single angle, and for soft materials such as polyethylene film, the above-mentioned device cannot ensure the flatness of the film, and does not add related rotating and moving structures to achieve full-width testing effect, resulting in low applicability.
[0006] This application provides a gloss testing device for polyethylene film production, which adopts the following technical solution:
[0007] A gloss testing device for polyethylene film production includes a testing platform, a raised support bracket, a support platform, a black velvet frame, a black glass with legs, a clamping assembly, and a rotating assembly. The testing platform is slidably connected to the top of the support platform. The raised support bracket is fixedly connected to the middle of the testing platform and threadedly connected to the outside of the testing platform. The black velvet frame is fixedly connected to the top side of the support platform. The black glass with legs is fixedly connected to the top center of the testing platform. The rotating assembly is installed on the top of the raised support bracket, and the clamping assembly is installed on both sides of the testing platform.
[0008] The support platform is used to slide and support the testing table, the elevated bracket is used to connect the rotating component, the black velvet frame is used to block light and does not provide a darkroom testing environment, the black glass with legs is used to avoid interference from transmitted light or back reflection, the clamping component is used to clamp soft polyethylene films of different sizes in both directions, and the rotating component is used to drive the polyethylene film to rotate, so as to comprehensively test the gloss of the polyethylene film in conjunction with the testing table in the moving state.
[0009] In one feasible technical solution of this application, the clamping assembly includes a rotating shaft, a clamping arm body, a DC motor, a bidirectional screw, and a limiting shaft. The rotating shaft is rotatably connected to the top of the elevated support. The clamping arm body is threaded to the outside of one end of the rotating shaft. The DC motor is threaded to both sides of the bottom of the testing platform. The bidirectional screw is installed outside the output end of the DC motor and is screwed into the interior of the elevated support. The limiting shaft passes through the interior of the elevated support and is fixedly connected to the surface of the testing platform.
[0010] In one feasible technical solution of this application, the rotating assembly includes a geared motor, a connecting shaft, and a locking gear. The geared motor is installed on the top side of the elevated support, the connecting shaft is fixedly connected to the outside of the output end of the geared motor, and the locking gear is respectively sleeved on one side of the connecting shaft and the rotating shaft, and the external teeth of the locking gear mesh with each other.
[0011] In one feasible technical solution of this application, several sets of equally spaced white LED lights are also installed on the top inner side of the black velvet frame.
[0012] In one feasible technical solution of this application, the detection stage is located below the black glass with legs and is equipped with several sets of optical sensors for detecting gloss.
[0013] In one feasible technical solution of this application, the connection between the testing table and the support platform is further provided with a straight sliding track and a bottom groove of mutually compatible size.
[0014] In one feasible technical solution of this application, the interior of the elevated support is provided with threaded grooves and through holes that match the dimensions of the bidirectional screw and the limiting shaft.
[0015] In summary, this application includes at least one of the following beneficial technical effects:
[0016] This device uses a DC motor to drive a bidirectional screw to synchronously tighten the clamping arms on both sides, achieving uniform tension control of the film and avoiding wrinkles and deformation of the soft polyethylene film caused by gravity or stress, thus ensuring a flat detection area. After being clamped, the film is laid flat on the black glass surface, and its rigid support, combined with the light-absorbing properties of black, simultaneously solves the problems of transmitted light interference and soft material collapse. The evenly spaced white LEDs inside the black velvet frame provide uniform background light, which, combined with the light-absorbing properties of the black velvet, avoids ambient light interference and solves the problem of sensor misjudgment caused by light transmission of transparent films. With the addition of a rotating component and multi-point sampling by an optical sensor, a spiral scanning path is achieved, enabling full-width surface detection without blind spots. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the gloss testing device for polyethylene film production according to an embodiment of this application.
[0019] Figure 2 This is a distribution diagram of the white LED lights in the embodiments of this application.
[0020] Figure 3 This is a top view of the top of the testing station in an embodiment of this application.
[0021] Figure 4 This is a schematic diagram of the clamping component in an embodiment of this application.
[0022] Figure 5 This is a schematic diagram of the structure of the elevated support in the embodiments of this application.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Testing table; 2. Elevated support frame; 3. Support platform; 4. Black velvet frame; 5. Black glass with support legs;
[0025] 6. Clamping assembly; 61. Rotary shaft; 62. Clamping arm body; 63. DC motor; 64. Bidirectional screw; 65. Limiting shaft;
[0026] 7. Rotating assembly; 71. Gear motor; 72. Connecting shaft; 73. Locking gear;
[0027] 8. White LED light; 9. Optical sensor; 10. Straight slide rail; 11. Bottom groove; 12. Threaded groove; 13. Through hole; 14. Push cylinder. Detailed Implementation
[0028] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.
[0029] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0030] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "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 application 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 application.
[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0032] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0033] This application discloses a gloss testing device for polyethylene film production. (Refer to...) Figures 1 to 5The gloss testing device for polyethylene film production includes a testing platform 1, a raised support 2, a support platform 3, a black velvet frame 4, a black glass with legs 5, a clamping assembly 6, and a rotating assembly 7. The testing platform 1 is slidably connected to the top of the support platform 3. The raised support 2 is fixedly connected to the middle of the testing platform 1 and threadedly connected to the outside of the testing platform 1. The black velvet frame 4 is fixedly connected to the top side of the support platform 3. The black glass with legs 5 is fixedly connected to the top center of the testing platform 1. The rotating assembly 7 is installed on the top of the raised support 2, and the clamping assembly 6 is installed on both sides of the testing platform 1.
[0034] The support platform 3 is used to slide and support the testing table 1. The elevated bracket 2 is used to connect the rotating component 7. The black velvet frame 4 is used to shield light and does not provide a darkroom testing environment. The black glass with legs 5 is used to avoid interference from transmitted light or back reflection. The clamping component 6 is used to clamp soft polyethylene films of different sizes in both directions. The rotating component 7 is used to drive the polyethylene film to rotate. Together with the testing table 1 in the moving state, the gloss of the polyethylene film is fully tested.
[0035] The clamping assembly 6 includes a rotating shaft 61, a clamping arm body 62, a DC motor 63, a bidirectional screw 64, and a limiting shaft 65. The rotating shaft 61 is rotatably connected to the top of the lifting bracket 2. The clamping arm body 62 is threaded to the outside of one end of the rotating shaft 61. The DC motor 63 is threaded to both sides of the bottom of the testing table 1. The bidirectional screw 64 is installed on the outside of the output end of the DC motor 63 and is screwed into the inside of the lifting bracket 2. The limiting shaft 65 passes through the inside of the lifting bracket 2 and is fixedly connected to the surface of the testing table 1.
[0036] The rotating assembly 7 includes a geared motor 71, a connecting shaft 72, and a locking gear 73. The geared motor 71 is installed on the top side of the lifting bracket 2. The connecting shaft 72 is fixedly connected to the outside of the output end of the geared motor 71. The locking gear 73 is respectively sleeved on one side of the connecting shaft 72 and the rotating shaft 61, and the external teeth of the locking gear 73 mesh with each other.
[0037] Several sets of equally spaced white LED lights 8 are also installed on the inner top of the black velvet frame 4.
[0038] The testing platform 1 is located below the black glass 5 with legs and is equipped with several sets of optical sensors 9 for detecting gloss.
[0039] The connection between the testing platform 1 and the support platform 3 is also provided with a straight sliding track 10 and a bottom groove 11 that are adapted to each other in size.
[0040] The interior of the elevated support 2 is provided with threaded grooves 12 and through holes 13 that match the dimensions of the bidirectional screw 64 and the limiting shaft 65.
[0041] The gloss testing device for polyethylene film production according to this application embodiment is used in roughly the following manner:
[0042] Turn on the white LED light 8 inside the black velvet frame 4, adjust the light intensity to the standard value to create a uniform background light environment, and ensure that the straight sliding track 10 and bottom groove 11 of the support platform 3 are lubricated to ensure that the testing table 1 slides without resistance under the drive of the push cylinder 14. In use, lay the polyethylene film flat on the black glass 5 with legs, with the film edge extending into the clamping range of the clamping components 6 on both sides. Start the DC motor 63 to drive the bidirectional screw 64 to rotate, which in turn drives the clamping arm bodies 62 on both sides to move inward synchronously through the threaded groove 12. The limiting shaft 65 slides along the through hole 13, and automatically stops when the clamping force reaches the preset value to ensure that the film is not stretched or deformed. Manually touch the center area of the film to confirm that there are no visible ripples or looseness. Next, the geared motor 71 is started. The geared motor 71 drives the locking gear 73 through the connecting shaft 72 to drive the rotating shaft 61 to slowly rotate the film and slide it laterally along the straight slide track 10. The movement step is controlled by the servo motor. The optical sensor 9 is triggered synchronously during the rotation and sliding of the film, and collects multi-angle gloss data every 0.1 seconds. The data is used to generate a three-dimensional gloss distribution cloud map through the built-in algorithm and is displayed on the HMI interface in real time, thereby completing the full-width surface detection of the polyethylene film.
[0043] The beneficial technical effects of the gloss testing device for polyethylene film production according to the embodiments of this application are roughly as follows:
[0044] This device uses a DC motor 63 to drive a bidirectional screw 64 to simultaneously tighten the clamping arms on both sides, achieving uniform tension control of the film and avoiding wrinkles and deformation of the soft polyethylene film caused by gravity or stress, thus ensuring a flat detection area. After being clamped, the film is laid flat on the black glass surface, and its rigid support, combined with the light-absorbing properties of black, simultaneously solves the problems of transmitted light interference and soft material collapse. The evenly spaced white LED lights 8 inside the black velvet frame 4 provide uniform background light, which, combined with the light-absorbing properties of the black velvet, avoids ambient light interference and solves the problem of sensor misjudgment caused by light transmission of transparent films. With the addition of the rotating component 7 and the multi-point sampling of the optical sensor 9, a spiral scanning path is achieved, enabling full-width surface detection without blind spots.
[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A gloss testing device for polyethylene film production, characterized in that, The device includes a testing table (1), a raised support (2), a support platform (3), a black velvet frame (4), a black glass panel with legs (5), a clamping assembly (6), and a rotating assembly (7). The testing table (1) is slidably connected to the top of the support platform (3). The raised support (2) is fixedly connected to the middle of the testing table (1) and threadedly connected to the outside of the testing table (1). The black velvet frame (4) is fixedly connected to the top side of the support platform (3). The black glass panel with legs (5) is fixedly connected to the top center of the testing table (1). The rotating assembly (7) is installed on the top of the raised support (2). The clamping assembly (6) is installed on both sides of the testing table (1). The support platform (3) is used to slide and support the testing table (1), the elevated bracket (2) is used to connect the rotating component (7), the black velvet frame (4) is used to block light and does not provide a darkroom testing environment, the black glass with legs (5) is used to avoid interference from transmitted light or back reflection, the clamping component (6) is used to clamp soft polyethylene films of different sizes in both directions, and the rotating component (7) is used to drive the polyethylene film to rotate, in conjunction with the testing table (1) in the moving state to comprehensively test the gloss of the polyethylene film.
2. The apparatus for detecting the glossiness of the polyethylene film produced according to claim 1, wherein, The clamping assembly (6) includes a rotating shaft (61), a clamping arm body (62), a DC motor (63), a bidirectional screw (64), and a limiting shaft (65). The rotating shaft (61) is rotatably connected to the top of the lifting bracket (2). The clamping arm body (62) is threaded to the outside of one end of the rotating shaft (61). The DC motor (63) is threaded to both sides of the bottom of the testing table (1). The bidirectional screw (64) is installed outside the output end of the DC motor (63) and is screwed into the inside of the lifting bracket (2). The limiting shaft (65) penetrates the inside of the lifting bracket (2) and is fixedly connected to the surface of the testing table (1).
3. The apparatus for detecting the glossiness of the polyethylene film produced according to claim 2, wherein, The rotating assembly (7) includes a geared motor (71), a connecting shaft (72), and a locking gear (73). The geared motor (71) is installed on the top side of the lifting bracket (2). The connecting shaft (72) is fixedly connected to the outside of the output end of the geared motor (71). The locking gear (73) is respectively sleeved on one side of the connecting shaft (72) and the rotating shaft (61), and the external teeth of the locking gear (73) mesh with each other.
4. The apparatus for detecting the glossiness of the polyethylene film produced according to claim 1, wherein, The top inner side of the black velvet frame (4) is also equipped with several sets of equally spaced white LED lights (8).
5. The apparatus for detecting the glossiness of the polyethylene film produced according to claim 1, wherein, The detection stage (1) is located below the black glass (5) with legs and is also equipped with several sets of optical sensors (9) for detecting gloss.
6. The apparatus for detecting the glossiness of the polyethylene film produced according to claim 1, wherein, The connection between the testing platform (1) and the support platform (3) is also provided with a straight sliding track (10) and a bottom groove (11) of mutually compatible size.
7. The apparatus for detecting the glossiness of the polyethylene film produced according to claim 2, wherein The inner part of the high-raising support (2) is respectively provided with a threaded groove (12) and a through hole (13) matching the size of the bidirectional screw rod (64) and the limiting shaft (65).