Film thickness on-line detection device
By adjusting the probe's travel and distance from the film, the problem of insufficient applicability of existing devices when detecting films with large widths has been solved, achieving efficient detection of films of different widths.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-10
AI Technical Summary
Existing online film thickness detection devices have insufficient probe travel when detecting films with large widths, making it difficult to move to the edge of the film. Furthermore, the distance between the probe and the film is difficult to adjust, which can easily lead to collisions or reduced signal strength, resulting in insufficient applicability.
The probe's stroke is adjusted by the relative movement of the first and second housings, and the distance between the probe and the film is adjusted by moving the probe up and down along the slide plate.
This improves the device's applicability to films of different widths, avoids problems such as probe collision damage and signal strength reduction, and enhances the sensitivity and applicability of the detection.
Smart Images
Figure CN223985013U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the film detection technical field, specifically related to a film thickness on -line detection device. BACKGROUND
[0002] The film thickness on -line detection device is a kind of equipment for real-time monitoring the thickness change in film production process, wherein "on -line" refers to the film thickness detection equipment is directly integrated into production line, realizes the real-time measurement of film thickness in production process, without stopping sampling.During detection, probe reciprocatingly moves, and the moving direction of probe is perpendicular to the moving direction of film.
[0003] The stroke of the probe reciprocating movement of the existing film thickness on -line detection device is usually fixed, if the film with large width size needs to be detected, the stroke of the probe is insufficient, so that the probe is difficult to move to the edge of the film for detection, the applicability is insufficient, and the probe is usually fixedly connected, the distance between the probe and the film is difficult to adjust, the distance is too close, the probe and the film can collide and cause the surface damage of the film, the distance is too far, the signal intensity can be reduced and the detection sensitivity is reduced, the applicability is insufficient. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at providing a film thickness on -line detection device, the stroke of probe can be adjusted after the relative movement of first shell and second shell, different width size films can be adapted, the applicability is improved, and the distance between probe and film can be adjusted after the up-down movement of slide plate along probe, the applicability is improved.
[0005] The technical scheme adopted by the utility model is as follows:
[0006] A film thickness on -line detection device, including bottom plate, further comprising:
[0007] First shell, the first shell is slidably connected on the bottom plate, the inside of the first shell is fixedly connected with motor, the output end of the motor is fixedly connected with lead screw, the inside of the first shell is slidably connected with slide plate, one end of the slide plate is threadedly connected with the lead screw, and the other end of the slide plate is slidably installed with probe along vertical direction;
[0008] Second shell, the second shell is slidably connected on the outside of the first shell, and the second shell and the lead screw are movably installed together.
[0009] Telescopic mechanism, the telescopic mechanism includes first rack fixedly connected on the outer wall of the first shell, the second rack is fixedly connected on the inner wall of the second shell, the gear is engaged between the first rack and the second rack, and the gear is rotatably connected with the bottom plate.
[0010] In this process, after the first housing slides along the base plate, it drives the second housing to slide in the opposite direction through a telescopic mechanism, thereby increasing or decreasing the distance between the first housing and the second housing.
[0011] A rotating cylinder is rotatably connected to the inner wall of the second housing, and the interior of the rotating cylinder is threadedly connected to a lead screw.
[0012] The first housing has a guide rod inside. One end of the guide rod is fixedly connected to the first housing, and the other end of the guide rod is slidably connected to the second housing. The end of the slide plate away from the probe is slidably engaged with the guide rod.
[0013] The bottom of the first housing is provided with a first sliding groove, and a first sliding strip is fixedly connected to the base plate, with the first sliding strip slidingly engaged with the first sliding groove.
[0014] The outer wall of the first housing is fixedly connected to a second slide bar, and the inner wall of the second housing is provided with a second slide groove, which slides in conjunction with the second slide bar.
[0015] A push rod is fixedly connected to one end of the slide plate near the probe, and the output end of the push rod is fixedly connected to the probe.
[0016] The technical effects achieved by this utility model are as follows:
[0017] The invention allows for adjustment of the probe's stroke after the relative movement of the first and second housings. The movement of the first housing is followed by the movement of the second housing via a telescopic mechanism, which increases or decreases the length of the lead screw located inside the first and second housings, thereby adjusting the probe's stroke. This facilitates adaptation to films of different widths and improves applicability.
[0018] The probe of this invention moves up and down along the slide to adjust the distance between the probe and the film, reducing the possibility of the probe colliding with the film and causing damage to the film surface if the distance is too close, and reducing the possibility of the signal strength being reduced and the detection sensitivity being reduced if the distance is too far, thus improving applicability. Attached Figure Description
[0019] Figure 1 This is an overall installation diagram of this utility model;
[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model from one angle;
[0021] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle;
[0022] Figure 4 This is a structural schematic diagram of the entire invention from another angle;
[0023] Figure 5 This utility model Figure 4 Enlarged view of point B in the middle;
[0024] Figure 6 This is a cross-sectional schematic diagram of the first and second shells in this utility model;
[0025] Figure 7 This utility model Figure 6 Enlarged view of point C in the middle;
[0026] Figure 8 This utility model Figure 6 Enlarged diagram of point D in the middle.
[0027] The attached diagram lists the components represented by each number as follows:
[0028] 10. Base plate; 20. First housing; 21. Motor; 22. Lead screw; 23. Slide plate; 24. Probe; 30. Second housing; 40. Telescopic mechanism; 41. First rack; 42. Second rack; 43. Gear; 51. Rotary drum; 52. Guide rod; 53. First slide groove; 54. First slide bar; 55. Second slide bar; 56. Second slide groove; 57. Push rod. Detailed Implementation
[0029] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific implementations of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0030] like Figure 1 to Figure 8 As shown, an online film thickness detection device includes a base plate 10, and further includes: a first housing 20, which is slidably connected to the base plate 10, a motor 21 fixedly connected inside the first housing 20, a lead screw 22 fixedly connected to the output end of the motor 21, a sliding plate 23 slidably connected inside the first housing 20, one end of the sliding plate 23 being threadedly connected to the lead screw 22, and a probe 24 slidably mounted on the other end of the sliding plate 23 in the vertical direction; a second housing 30, which is slidably connected to the outside of the first housing 20, and the second housing 30 is movably mounted together with the lead screw 22; and a telescopic mechanism 40, which includes a first rack 41 fixedly connected to the outer wall of the first housing 20, a second rack 42 fixedly connected to the inner wall of the second housing 30, a gear 43 meshing between the first rack 41 and the second rack 42, and the gear 43 being rotatably connected to the base plate 10.
[0031] It should be noted that a machine body (e.g., a casting machine) for film production is provided below the base plate 10. This device is fixedly installed on the top of the machine body by the base plate 10 and bolts (not shown in the figure). The film is wound inside the machine body. The probe 24 is located above the film. A first limiting hole is provided at the end of the first housing 20. Several second limiting holes are provided on the top of the base plate 10 along the sliding direction of the first housing 20. Limiting pins are slidably connected in the first limiting holes and the second limiting holes to limit the first housing 20 and the base plate 10.
[0032] In this embodiment, after the motor 21 operates, it drives the lead screw 22 to rotate. The lead screw 22 drives the slide plate 23 to move, and the slide plate 23 drives the probe 24 to move along the diaphragm. The range of movement of the probe 24 is the travel of the probe 24. When it is necessary to adjust the travel of the probe 24, the first housing 20 is moved along the base plate 10. The first housing 20 drives the gear 43 to rotate through the first rack 41. The gear 43 drives the second housing 30 to move through the second rack 42. The direction of movement of the second housing 30 is opposite to the direction of movement of the first housing 20, thereby increasing or decreasing the distance between the first housing 20 and the second housing 30. This adjusts the length of the lead screw 22 located inside the first housing 20 and the second housing 30, thereby adjusting the travel of the probe 24. Compared with the probe 24 with a fixed travel in the conventional method, this method offers a more flexible and efficient approach. This design facilitates adaptation to films of different widths, avoiding insufficient travel of the probe 24 when performing thickness testing on films with larger widths, thus improving applicability. Furthermore, the symmetrical synchronous movement of the first housing 20 and the second housing 30 via the telescopic mechanism 40 ensures that the center of the probe 24's travel is maintained in the middle of the film, facilitating a match between the probe 24's travel and the film's width. This prevents deviations between the probe 24's travel and the film's width after adjustment, further enhancing adaptability. Additionally, the up-and-down movement of the probe 24 along the slide plate 23 allows for easy adjustment of the distance between the probe 24 and the film, reducing the impact of excessively close or far distances on thickness testing and improving overall applicability.
[0033] like Figure 8 As shown, a rotating cylinder 51 is rotatably connected to the inner wall of the second housing 30, and the interior of the rotating cylinder 51 is threadedly connected to the lead screw 22.
[0034] It should be noted that one end of the rotating drum 51 passes through the second housing 30 and is integrally fixedly connected to a flange. The outer diameter of the flange is larger than the outer diameter of the rotating drum 51. An end cap is rotatably connected to the outer side of the flange. The end cap is fixedly connected to the inner wall of the second housing 30 by bolts (not shown in the figure). The rotating drum 51 and the second housing 30 are rotatably connected together by the flange and the end cap.
[0035] In this embodiment, when the first housing 20 and the second housing 30 move relative to each other, the first housing 20 drives the lead screw 22 to move, and the rotating drum 51 moves along the axis of the lead screw 22 while also rotating on the second housing 30. This allows the lead screw 22 and the second housing 30 to not only rotate relative to each other, which facilitates the movement of the slide plate 23 after the lead screw 22 rotates, but also to move relative to each other, which facilitates the relative rotation between the lead screw 22 and the second housing 30 after the travel of the probe 24 is adjusted.
[0036] like Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, a guide rod 52 is provided inside the first housing 20. One end of the guide rod 52 is fixedly connected to the first housing 20, and the other end of the guide rod 52 is slidably connected to the second housing 30. The end of the slide plate 23 away from the probe 24 is slidably engaged with the guide rod 52.
[0037] It should be noted that the cross-sectional shape of the guide rod 52 is circular, and the axis of the guide rod 52 is parallel to the axis of the lead screw 22.
[0038] In this embodiment, the guide rod 52 cooperates with the slide plate 23, making the movement of the slide plate 23 along the lead screw 22 more stable.
[0039] like Figure 2 , Figure 3 and Figure 4 As shown, a first sliding groove 53 is provided at the bottom of the first housing 20, and a first sliding strip 54 is fixedly connected to the bottom plate 10. The first sliding strip 54 slides in conjunction with the first sliding groove 53.
[0040] It should be noted that the cross-sectional shapes of the first slide groove 53 and the first slide bar 54 are both dovetail-shaped or "T"-shaped, and the dovetail-shaped shape is preferred in this utility model.
[0041] In this embodiment, the first slide bar 54 cooperates with the first slide groove 53, making the sliding process of the first housing 20 along the base plate 10 more stable, thereby facilitating the adjustment of the stroke of the probe 24.
[0042] like Figure 2 , Figure 4 and Figure 5 As shown, a second slide bar 55 is fixedly connected to the outer wall of the first housing 20, and a second slide groove 56 is provided on the inner wall of the second housing 30. The second slide groove 56 and the second slide bar 55 are slidably engaged.
[0043] It should be noted that the cross-sectional shape of the second slide bar 55 and the second slide groove 56 is either dovetail-shaped or "T"-shaped, and the dovetail shape is preferred in this utility model.
[0044] In this embodiment, the second slide groove 56 cooperates with the second slide bar 55, making the sliding process of the second housing 30 along the first housing 20 more stable, thereby facilitating the adjustment of the travel of the probe 24.
[0045] like Figure 2 As shown, a push rod 57 is fixedly connected to one end of the slide plate 23 near the probe 24, and the output end of the push rod 57 is fixedly connected to the probe 24.
[0046] It should be noted that the push rod 57 is an electric telescopic rod or a pneumatic telescopic rod. The output end of both the electric telescopic rod and the pneumatic telescopic rod can be telescopically moved. The present invention is preferably an electric telescopic rod. A vertical plate is fixedly connected to the top of the probe 24. A vertical hole is opened at one end of the slide plate 23 near the probe 24. The vertical plate and the vertical hole slide together in the vertical direction. The slide plate 23 and the probe 24 are slidably connected together through the vertical plate and the vertical hole.
[0047] In this embodiment, after the push rod 57 is activated, its output end drives the probe 24 to move up and down in the vertical direction, thereby facilitating the adjustment of the distance between the probe 24 and the film.
[0048] The working principle of this utility model is as follows: After the first housing 20 moves along the base plate 10, it drives the gear 43 to rotate through the first rack 41. After the gear 43 rotates, it drives the second housing 30 to move in the opposite direction through the second rack 42, thereby increasing or decreasing the distance between the first housing 20 and the second housing 30, thus adjusting the stroke of the probe 24, which is convenient for adapting to films of different widths and improving applicability. After the push rod 57 works, it drives the probe 24 to move up and down along the slide plate 23, which is convenient for adjusting the distance between the probe 24 and the film, thus improving applicability.
[0049] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A thin film thickness on-line detection device, characterized in that, It comprises a base plate (10), further comprising: A first shell (20) is slidingly connected to the base plate (10), a motor (21) is fixedly connected inside the first shell (20), the output end of the motor (21) is fixedly connected with a lead screw (22), a sliding plate (23) is slidingly connected inside the first shell (20), one end of the sliding plate (23) is threadedly connected with the lead screw (22), and the other end of the sliding plate (23) is slidingly installed with a probe (24) in the vertical direction; A second shell (30) is slidingly connected to the outside of the first shell (20), and the second shell (30) is movably installed with the lead screw (22); A telescopic mechanism (40) is provided, which comprises a first rack (41) fixedly connected to the outer wall of the first shell (20), a second rack (42) fixedly connected to the inner wall of the second shell (30), and a gear (43) meshing between the first rack (41) and the second rack (42), and the gear (43) is rotatably connected with the base plate (10); Wherein, the first shell (20) slides along the base plate (10), and then drives the second shell (30) to slide reversely through the telescopic mechanism (40), so that the distance between the first shell (20) and the second shell (30) increases or decreases.
2. The apparatus for on-line film thickness measurement according to claim 1, wherein: A rotating drum (51) is rotatably connected to the inner wall of the second shell (30), and the rotating drum (51) is threadedly connected with the lead screw (22).
3. The apparatus for on-line film thickness measurement according to claim 1, wherein: A guide rod (52) is arranged in the first shell (20), one end of the guide rod (52) is fixedly connected with the first shell (20), the other end of the guide rod (52) is slidingly connected with the second shell (30), and one end of the sliding plate (23) away from the probe (24) is slidingly connected with the guide rod (52).
4. The apparatus for on-line film thickness measurement according to claim 1, wherein: A first sliding groove (53) is formed in the bottom of the first shell (20), a first sliding bar (54) is fixedly connected to the base plate (10), and the first sliding bar (54) is slidingly connected with the first sliding groove (53).
5. The apparatus for on-line film thickness measurement according to claim 1, wherein: A second sliding bar (55) is fixedly connected to the outer wall of the first shell (20), a second sliding groove (56) is formed in the inner wall of the second shell (30), and the second sliding groove (56) is slidingly connected with the second sliding bar (55).
6. The apparatus for on-line film thickness measurement according to claim 1, wherein: One end of the sliding plate (23) close to the probe (24) is fixedly connected with a push rod (57), and the output end of the push rod (57) is fixedly connected with the probe (24).