A film thickness detection mechanism

Abstract

The utility model belongs to the film product quality inspection equipment technical field, concretely relates to a film thickness detection mechanism. The utility model discloses: frame, its top surface is equipped with the backing pad, gantry, is equipped in the top surface of frame, at least one suspension, the slideable of being equipped in gantry, at least one dial gauge, the corresponding of being equipped in suspension, the needle of dial gauge is towards backing pad, the height of gantry or suspension is adjustable, and the detachable connection of gantry and frame. The utility model is used to solve the technical problem that the measuring range and measuring accuracy of the film thickness detection mode of the prior art to continuous production exist the technical problem of deficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of membrane product quality inspection equipment, specifically relating to a membrane thickness detection mechanism. Background Technology

[0002] Taking polyimide film as an example, its production equipment is in the form of a production line, and the processes from casting at the source to drying and curing are carried out continuously.

[0003] Currently, the method for online inspection of the thickness of produced polyimide films is for workers to use a micrometer to clamp the two edges of the film for measurement. This method has at least two drawbacks: 1. Due to the wide width of the film, the measurement points are too small compared to the entire film, making it difficult to obtain accurate data; 2. The film is continuously fed on the production line, and even at a slow speed, the window of opportunity for manual measurement is limited, resulting in low measurement accuracy.

[0004] Therefore, there is a need to provide a detection device for the above-mentioned defects to improve the measurement range and accuracy of film thickness. Utility Model Content

[0005] This invention provides a film thickness detection mechanism to solve the technical problem that the existing technology has insufficient measurement range and accuracy for film thickness detection in continuous production. This utility model includes: a frame, the top surface of which is provided with a pad; A gantry frame is installed on the top surface of the frame; At least one suspension is slidably mounted on the gantry frame; At least one dial indicator is installed on the suspension, with the pointer of the dial indicator pointing towards the pad. The height of the gantry or the suspension is adjustable, and the gantry is detachably connected to the frame.

[0006] This invention, when inspecting continuously produced thin-film products, pre-adjusts the relative distance between the dial indicator and the pad. The thin-film product moves between the dial indicator and the pad, simultaneously contacting the surface of the pad and the testing head of the dial indicator. During the movement of the thin-film, the change in film thickness is reflected on the dial indicator, thereby achieving the detection of the film thickness.

[0007] Furthermore: the suspension includes a buckle plate and a hanger plate. The surface of the buckle plate is provided with a buckle adapted to the dial indicator. The lower end of the hanger plate is connected to the upper end of the buckle plate, and the upper end of the hanger plate is connected to the gantry. The beneficial effect of this step is that the hanger plate achieves the connection with the gantry, and the buckle plate achieves the connection with the dial indicator.

[0008] Furthermore: the lifting lug plate includes an upper lifting lug plate and a lower lifting lug plate, the upper end of the upper lifting lug plate is provided with a collar, the collar is connected to the gantry frame, and the collar is provided with a locking bolt; The lower end of the lower hanging lug plate is connected to the buckle plate; The upper and lower lifting lugs are connected by a sliding groove structure. A height adjustment structure is also provided on one side of the sliding groove structure. The height adjustment structure includes an upper connecting plate, a lower connecting plate, and an adjusting bolt. The upper connecting plate is located on the side of the upper lifting lug, and the lower connecting plate is located on the side of the lower lifting lug. The adjusting bolt is threadedly connected to the upper connecting plate, and its end passes through the lower connecting plate. A nut is provided at the end of the adjusting bolt. The beneficial effects of this step are: the lifting lugs can move on the crossbeam of the gantry frame, and the lifting lugs can adjust the height of the dial indicator relative to the pad.

[0009] Furthermore, the crossbeam of the gantry frame is provided with a scale. The beneficial effect of this step is that it can more accurately locate the position of the suspension in order to determine its relative position with the membrane.

[0010] Furthermore, the edge of the pad is provided with a rounded corner. The beneficial effect of this step is that the rounded corner can avoid scratching the film.

[0011] Furthermore: the bottom of the pad is provided with a telescopic mechanism, the telescopic mechanism comprising: Several vertical shafts, the top of which is connected to the bottom surface of the pad, are inserted into the frame; A threaded sleeve is located at the center of the bottom surface of the pad. A telescopic rod is installed inside the frame, and its upper end is screwed to the threaded sleeve. An adjusting rod is installed inside the frame perpendicular to the telescopic rod, with one end of the adjusting rod extending out of the frame and equipped with a handwheel; The bevel gear pair is used to connect the telescopic rod and the adjusting rod. The beneficial effect of this step is that the height of the pad can be adjusted so that the pad is close to and abuts the film during testing, and is far away from the film when not testing.

[0012] The beneficial effects of this utility model are: This application combines a dial indicator and a backing plate, sets a calibrated gap value, fills the gap distance with a thin film, and uses a dial indicator to detect the range of film thickness variation relative to the calibrated gap value. This allows for the detection of the film thickness variation range. Not only can the thickness in the middle of the film be detected by moving the dial indicator, but multiple points can also be detected using several dial indicators, improving measurement accuracy and precision. Attached Figure Description

[0013] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 A schematic diagram illustrating the application of a film thickness detection mechanism provided by this utility model; Figure 2 A schematic diagram of the structure of a film thickness detection mechanism provided by this utility model; Figure 3 This is a schematic diagram of the suspension structure in a film thickness detection mechanism provided by this utility model.

[0015] Figure label: 1-Frame; 2-Gantry frame; 3-Suspension; 4-Dial gauge; 5-Membrane; 11-Plate; 12-Vertical shaft; 13-Telescopic rod; 14-Adjusting rod; 15-Handwheel; 16-Bevel gear pair; 31-Lifting lug plate; 32-Snap plate; 111-Threaded sleeve; 311-Upper lifting lug; 312-Lower lifting lug; 313-Upper connecting plate; 314-Collar; 315-Locking bolt; 316-Lower connecting plate; 317-Adjusting bolt; 321-Snap fastener. Detailed Implementation

[0016] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention. It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Furthermore, the terms "first," "second," etc., 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. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0019] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0021] Implementation of this application, for example Figures 1-3 As shown, this application provides a film thickness detection mechanism.

[0022] This application includes: a frame 1, the top surface of which is provided with a pad 11; Gantry 2 is located on the top surface of the frame 1; At least one suspension 3 is slidably mounted on the gantry 2; At least one dial indicator 4 is installed on the suspension 3, with the pointer of the dial indicator 4 pointing towards the pad 11; The height of the gantry 2 or the suspension 3 is adjustable, and the gantry 2 is detachably connected to the frame 1.

[0023] This application can be installed on the production line, for example, between the casting equipment and the drying oven, between the film outlet of the casting equipment and the inlet of the drying oven, or at other locations where the film is exposed; then the frame 1 is placed under the film 5, the pad 11 supports the film 5, the gantry 2 is separated from the frame 1 before installation, after the frame 1 is in the accurate position under the film 5, the gantry 2 is installed on the frame 1, and then the position of the suspension 3 on the gantry 2 is adjusted, that is, the relative position of the dial indicator 4 and the film 5 is determined, which can be at the edge or in the middle of the film 5, etc. When there are several dial indicators 4, they can be spaced on the surface of the film 5, that is, forming multiple detection lines for testing the film 5; Before testing, the relative distance between the measuring head of dial indicator 4 and the pad 11 is set using tools such as feeler gauges. This distance is generally based on the lower limit of the film thickness. Then, when testing continuously produced film products, the relative distance between dial indicator 4 and the pad 11 is pre-adjusted. The film product moves between dial indicator 4 and the pad 11, simultaneously contacting the surface of the pad 11 and the measuring head of dial indicator 4. During the movement of the film, the change in film thickness is reflected on dial indicator 4, thus achieving the detection of film thickness. Using multiple dial indicators 4 to test film thickness not only allows for more testing points than using a micrometer to test the edges, resulting in a larger measurement range, but also makes dial indicator 4 easier to operate than a micrometer, as it can change in film thickness in real time, ensuring measurement accuracy. In addition, electronic models of dial indicators 4 with data storage and export functions can be selected, allowing the test data to be imported into a computer for data analysis, etc.

[0024] Based on the above technical solution, the suspension 3 includes a buckle plate 32 and a lug plate 31. The surface of the buckle plate 32 is provided with buckles 321 that are adapted to the dial indicator 4. The dial indicator 4 is embedded in the buckles 321, and the buckles 321 are distributed on both sides of the dial indicator, so as not to obstruct the upper and lower ends of the dial indicator 4. The lower end of the lug plate 31 is connected to the upper end of the buckle plate 32, and the upper end of the lug plate 31 is connected to the gantry 2. The lug plate 31 is used to achieve the connection with the gantry 2, and the buckle plate 32 is used to achieve the connection with the dial indicator 4.

[0025] Based on the above technical solution, since the relative distance between the dial indicator 4 and the pad 11 needs to be adapted to the membrane 5 of different thicknesses, the height of the dial indicator 4 needs to be adjusted when the pad 11 is stationary; therefore, the lifting lug 31 includes an upper lifting lug 311 and a lower lifting lug 312. The upper end of the upper lifting lug 311 is provided with a collar 314, which is connected to the gantry frame 2. The collar 314 is provided with a locking bolt 315. The lower end of the lower hanging lug plate 312 is connected to the buckle plate 32; The upper lifting lug 311 and the lower lifting lug 312 are connected by a sliding groove structure (similar to a mortise and tenon structure, which can only slide up and down and not move in other directions). A height adjustment structure is also provided on one side of the sliding groove structure. The height adjustment structure includes an upper connecting plate 313, a lower connecting plate 316 and an adjusting bolt 317. The upper connecting plate 313 is located on the side of the upper lifting lug 311, and the lower connecting plate 316 is located on the side of the lower lifting lug 312. The adjusting bolt 317 is threadedly connected to the upper connecting plate 313. The end of the adjusting bolt 317 passes through the lower connecting plate 316 and is provided with a nut. The lifting lug 31 can move and be fixed on the crossbeam of the gantry frame 2 by means of a collar 314 and a locking bolt 315. The lifting lug 31 can increase or decrease the distance between the lower connecting plate 316 and the upper connecting plate 313 by rotating the adjusting bolt 317, which can realize the adjustment of the height of the dial indicator 4 relative to the pad 11.

[0026] Based on the above technical solution, the crossbeam of the gantry 2 is provided with a scale. When there are multiple dial gauges 4, the distance between different dial gauges 4 can be determined by the scale, and the position of the suspension 3 on the gantry 2 can be located more accurately to determine the relative position of the diaphragm 5 in the width direction; providing more accurate measurement points.

[0027] Based on the above technical solution, the edge of the pad 11 is provided with a rounded corner, which can avoid scratching the membrane 5.

[0028] Based on the above technical solution, the bottom of the pad 11 is provided with a telescopic mechanism, the telescopic mechanism including: Several vertical shafts 12 are provided, the top of which is connected to the bottom surface of the pad 11. The vertical shafts 12 are inserted into the frame 1 and serve as a limit to keep the pad 11 horizontal and allow it to rise and fall stably relative to the frame 1. A threaded sleeve 111 is located at the center of the bottom surface of the pad 11; The telescopic rod 13 is located inside the frame 1, and its upper end is screwed to the threaded sleeve 111. An adjusting rod 14 is perpendicular to the telescopic rod 13 and is installed inside the frame 1. One end of the adjusting rod 14 extends out of the frame 1 and is equipped with a handwheel 15. A bevel gear pair 16 is used to connect the telescopic rod 13 and the adjusting rod 14. The handwheel 15 drives the adjusting rod 15 to rotate, which in turn drives the telescopic rod 13 to rotate through the meshing bevel gear pair 16. The telescopic rod 13 is screwed to the threaded sleeve 111. When the telescopic rod 13 rotates forward or backward, the length of the engagement between the two will also increase or decrease, that is, the height of the pad 11 can be adjusted. The height of the pad 11 relative to the frame 1 can be adjusted through the telescopic mechanism. The pad 11 only approaches and abuts the film during testing, and moves away from the film when not testing.

[0029] In this application, the distance between the dial indicator 4 and the pad 11 is based on the lower limit of the film thickness 5. The reasonable runout range of the dial indicator 4 is within the tolerance range of the film thickness reference value. The dial indicator 4 does not require the tightening and loosening process of a micrometer, and can reflect the change in film thickness 5 in a short time, thus improving the measurement accuracy. When the accuracy of the dial indicator 4 cannot meet the measurement requirements, it can be replaced by a micrometer. In addition, multiple dial indicators 4 can correspond to different positions of the film 5, no longer limited to the edge position, thus making the measurement range larger. Through multi-point detection, a more accurate average film thickness can be reflected.

[0030] Numerous specific details are set forth in this specification. However, it will be understood that embodiments of this invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification. In the description of this specification, references to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A film thickness detection mechanism, characterized in that, include: The frame has a pad on its top surface; A gantry frame is installed on the top surface of the frame; At least one suspension is slidably mounted on the gantry frame; At least one dial indicator is installed on the suspension, with the pointer of the dial indicator pointing towards the pad. The height of the gantry or the suspension is adjustable, and the gantry is detachably connected to the frame.

2. The film thickness detection mechanism according to claim 1, characterized in that, The suspension includes a buckle plate and a lug plate. The surface of the buckle plate is provided with buckles that are compatible with the dial indicator. The lower end of the lug plate is connected to the upper end of the buckle plate, and the upper end of the lug plate is connected to the gantry frame.

3. The film thickness detecting mechanism according to claim 2, wherein The lifting lug plate includes an upper lifting lug plate and a lower lifting lug plate. The upper end of the upper lifting lug plate is provided with a collar, which is connected to the gantry frame. The collar is provided with a locking bolt. The lower end of the lower hanging lug plate is connected to the buckle plate; The upper lifting lug and the lower lifting lug are connected by a sliding groove structure. A height adjustment structure is also provided on one side of the sliding groove structure. The height adjustment structure includes an upper connecting plate, a lower connecting plate and an adjusting bolt. The upper connecting plate is located on the side of the upper lifting lug, and the lower connecting plate is located on the side of the lower lifting lug. The adjusting bolt is threaded to the upper connecting plate, and the end of the adjusting bolt passes through the lower connecting plate. The end of the adjusting bolt is provided with a nut.

4. The film thickness detecting mechanism according to claim 1, wherein The crossbeam of the gantry frame is marked with graduations.

5. The film thickness detection mechanism according to claim 1, characterized in that, The edge of the pad is rounded.

6. The film thickness detecting mechanism according to claim 1, 2, 3, 4, or 5, wherein The bottom of the pad is provided with a telescopic mechanism, the telescopic mechanism including: Several vertical shafts, the top of which is connected to the bottom surface of the pad, and the vertical shafts are inserted into the frame; A threaded sleeve is located at the center of the bottom surface of the pad. A telescopic rod is installed inside the frame, and its upper end is screwed to the threaded sleeve. An adjusting rod is installed inside the frame perpendicular to the telescopic rod, with one end of the adjusting rod extending out of the frame and equipped with a handwheel; A bevel gear pair is used to connect the telescopic rod and the adjusting rod.

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