Membrane material thickness detection device

Abstract

The utility model relates to a film material thickness detection device which comprises a measuring rod which is vertically arranged and can move up and down, and a first guide roller is arranged at the bottom of the measuring rod; the second guide roller is located below the first guide roller, and the second guide roller and the first guide roller are used for clamping a thin film to be detected in a matched mode; and the displacement sensor is arranged on the measuring rod and is used for acquiring the moving distance of the measuring rod in the vertical direction at different positions of the thin film. According to the utility model, the technical problems of tedious operation and poor measurement effect when the thickness of the film is measured are solved.

Description

Technical Field

[0001] This utility model relates to the field of membrane and sheet material testing, and in particular to a membrane material thickness testing device. Background Technology

[0002] During film production, the thickness of the produced film needs to be measured to obtain the thickness at a specific point or to check the uniformity of the overall thickness. Current technology only allows point-to-point measurement using vernier calipers (such as electronic vernier calipers). This method can only measure the thickness of a single point on the film. To measure other locations, the film or caliper must be adjusted, which is not only cumbersome but also fails to measure the overall thickness and uniformity of the film in the transverse or longitudinal direction. Therefore, its practical effectiveness is far from ideal.

[0003] Currently, there is no effective solution to the problem that measuring the thickness of thin films in related technologies is cumbersome and yields poor results.

[0004] Therefore, this utility model proposes a membrane thickness detection device to overcome the defects of the prior art. Utility Model Content

[0005] The purpose of this invention is to provide a film thickness detection device. The measurement method is simple and easy to implement, and the operation is more convenient. It can measure the overall thickness of the film in a certain direction (such as the length or width direction of the film) and generate a thickness map. Thus, it can detect and display the uniformity of the film thickness in a certain direction in real time, and has a better measurement effect.

[0006] The objective of this utility model can be achieved by the following solutions:

[0007] This utility model provides a membrane thickness detection device, the membrane thickness detection device comprising:

[0008] A measuring rod that is vertically set and can move up and down, with a first guide roller at the bottom of the measuring rod;

[0009] The second guide roller is located below the first guide roller, and the second guide roller and the first guide roller are used to cooperate to clamp the film to be tested;

[0010] A displacement sensor is mounted on the measuring rod to obtain the vertical movement distance of the measuring rod at different positions of the film.

[0011] In a preferred embodiment of the present invention, the film thickness detection device further includes a vertically arranged support rod, the measuring rod and the second guide roller are located on the same side of the support rod, an operating plate is rotatably connected to the support rod, the measuring rod is located below the operating plate and the top end of the measuring rod is connected to the operating plate, and the measuring rod is moved vertically by rotating the operating plate;

[0012] The second guide roller is rotatably connected to the support rod.

[0013] In a preferred embodiment of the present invention, the central axis of the first guide roller extends in the horizontal direction, and a first rotating shaft is provided at the central axis of the first guide roller. The first guide roller is rotatably connected to the lower side wall of the measuring rod through the first rotating shaft.

[0014] The central axis of the second guide roller is parallel to the central axis of the first guide roller, and a second rotating shaft is provided at the central axis of the second guide roller. The second guide roller is rotatably connected to the lower side wall of the support rod through the second rotating shaft.

[0015] In a preferred embodiment of the present invention, the top of the support rod has a mounting groove;

[0016] The control panel includes an execution section and an operation section. One end of the execution section is connected to one end of the operation section. The position where the execution section and the operation section are connected is located inside the mounting groove and is rotatably connected to the inner wall of the mounting groove. The measuring rod is located below the execution section and the top end of the measuring rod is connected to the bottom end of the execution section.

[0017] In a preferred embodiment of the present invention, the film thickness detection device further includes a measuring box, the side wall of the measuring box is connected to the side wall of the support rod, the measuring box is located between the operating plate and the second guide roller, the top and bottom of the measuring box have a first opening and a second opening communicating with the interior, the measuring rod passes through the measuring box vertically through the first opening and the second opening, and the displacement sensor is located inside the measuring box.

[0018] In a preferred embodiment of the present invention, a limiting block is provided on the measuring rod located inside the measuring box, and a spring is sleeved on the measuring rod located inside the measuring box. The bottom end of the spring abuts against the top of the limiting block, and the top end of the spring abuts against the inner top wall of the measuring box.

[0019] In a preferred embodiment of this utility model, the first opening and the second opening are vertically opposite each other and are both elongated openings. The length direction of the first opening and the second opening is parallel to the axial direction of the second guide roller. By adjusting the position of the measuring rod in the first opening and the second opening, the relative position of the first guide roller and the second guide roller can be changed.

[0020] In a preferred embodiment of this utility model, a display screen is provided on the measuring box, a controller is provided inside the measuring box, the detection signal output terminal of the displacement sensor is electrically connected to the detection signal receiving terminal of the controller, and the detection signal output terminal of the controller is electrically connected to the signal receiving terminal of the display screen.

[0021] The detection signal output terminal of the controller is electrically connected to an external control terminal, and the signal output terminal of the control terminal is electrically connected to the signal receiving terminal of the display screen. The control terminal is used to generate a thickness map based on the data collected by the displacement sensor, which is then displayed on the display screen.

[0022] In a preferred embodiment of the present invention, an encoder is connected to the second guide roller.

[0023] In a preferred embodiment of the present invention, the film thickness detection device further includes a base, and the bottom end of the support rod is connected to the base.

[0024] As described above, the features and advantages of the membrane thickness detection device of this utility model are:

[0025] The device is equipped with a first guide roller and a second guide roller for clamping the film. The first guide roller is located at the bottom of a measuring rod, which is also equipped with a displacement sensor. When the film is not clamped, the outer wall of the first guide roller is in contact with the outer wall of the second guide roller. Since the first guide roller is located at the bottom of the measuring rod, and the measuring rod can move up and down in the vertical direction, when the film is clamped between the first and second guide rollers, the displacement sensor collects the change in the vertical position of the measuring rod (i.e., the distance it moves vertically), and the thickness of the film at that position can be obtained accordingly. Furthermore, during the detection process, the film clamping position can be changed by moving the film. The position between the first and second guide rollers is used to detect different positions of the film. When the film thickness changes at different positions, the distance between the first and second guide rollers changes, causing the measuring rod to change its position in the vertical direction along with the first guide roller. At this time, the displacement sensor can collect the corresponding distance change value, thereby knowing the thickness change of the film at different positions, and further knowing the overall thickness change of the film in a certain direction (such as the length or width direction). The structure is simple and easy to operate. Compared with manual single-point thickness measurement of the film, the accuracy of this application is higher. The technical solution of this application can not only obtain the thickness value of the film at different positions, but also know the uniformity of the thickness of the film in a certain direction, so as to achieve the purpose of detecting film quality and obtain better measurement results. Attached Figure Description

[0026] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0027] Figure 1 This is a three-dimensional structural view of the membrane thickness detection device of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the measuring box in the membrane thickness detection device of this utility model;

[0029] Figure 3 This is a top view of the measuring box in the membrane thickness detection device of this utility model;

[0030] Figure 4 This is a block diagram of the control structure of the membrane thickness detection device of this utility model;

[0031] Figure 5 This is one of the thickness maps generated by the film thickness detection device of this utility model after measuring the thickness of the film;

[0032] Figure 6 This is the second thickness map generated by the film thickness detection device of this utility model after measuring the thickness of the film.

[0033] The reference numerals in the accompanying drawings of this utility model are:

[0034] 1. Measuring rod; 101. Limiting block;

[0035] 2. First guide roller; 201. First rotating shaft;

[0036] 3. Second guide roller; 4. Displacement sensor;

[0037] 5. Support rod; 501. Mounting slot;

[0038] 6. Measuring box; 601. First opening;

[0039] 602. Second opening; 7. Display screen;

[0040] 8. Control panel; 801. Execution section;

[0041] 802. Operating section; 9. Spring;

[0042] 10. Controller; 11. Control terminal;

[0043] 12. Base; 13. Encoder. Detailed Implementation

[0044] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate this utility model and are not intended to limit the scope of this utility model. After reading this utility model, any modifications of this utility model in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0045] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0047] like Figures 1 to 4As shown, this utility model provides a film thickness detection device, which includes a measuring rod 1, a first guide roller 2, a second guide roller 3, and a displacement sensor 4. The measuring rod 1 is a vertically arranged straight rod that can move up and down. The first guide roller 2 is rotatably arranged at the bottom of the measuring rod 1, and the second guide roller 3 is located below the first guide roller 2. By moving the first guide roller 2 with the measuring rod 1 in the vertical direction, the distance between the first guide roller 2 and the second guide roller 3 can be changed. Thus, the second guide roller 3 can cooperate with the first guide roller 2 to clamp the film to be detected (not shown). The displacement sensor 4 is arranged on the measuring rod 1 and is used to obtain the vertical movement distance of the measuring rod 1 at different positions of the film, thereby knowing the thickness change of the film at different positions.

[0048] This invention includes a first guide roller 2 and a second guide roller 3 for clamping the film. The first guide roller 2 is located at the bottom of a measuring rod 1, and a displacement sensor 4 is also installed on the measuring rod 1. When no film is clamped between the first guide roller 2 and the second guide roller 3, the outer wall of the first guide roller 2 is in contact with the outer wall of the second guide roller 3. Since the first guide roller 2 is located at the bottom of the measuring rod 1, and the measuring rod 1 can move up and down in the vertical direction, when the film is clamped between the first guide roller 2 and the second guide roller 3 (by first moving the measuring rod 1 and the first guide roller 2 vertically upwards so that the distance between the first guide roller 2 and the second guide roller 3 is greater than the thickness of the film, passing the film between the first guide roller 2 and the second guide roller 3, and then lowering the measuring rod 1 and the first guide roller 2 so that the first guide roller 2 and the second guide roller 3 cooperate to clamp the film), the displacement sensor 4 collects the vertical displacement of the measuring rod 1. The change in position (i.e., the distance moved vertically) corresponds to the thickness of the film at that position. Furthermore, during the detection process, the position of the film held between the first guide roller 2 and the second guide roller 3 can be changed by moving the film to detect different positions. When the thickness of the film changes at different positions, the distance between the first guide roller 2 and the second guide roller 3 changes, causing the measuring rod 1 to change its position in the vertical direction along with the first guide roller 2. At this time, the displacement sensor 4 can collect the corresponding distance change value, thereby obtaining the thickness change of the film at different positions, and thus the overall thickness change of the film in a certain direction (such as the length or width direction). The structure is simple and easy to operate. Compared with manual single-point thickness measurement of the film, the accuracy of this application is higher. The technical solution of this application can not only obtain the thickness value of the film at different positions, but also obtain the uniformity of the thickness of the film in a certain direction (averaging the thickness values ​​of multiple different positions), so as to achieve the purpose of detecting film quality and obtain better measurement results.

[0049] Furthermore, such as Figure 1As shown, the axial length of the second guide roller 3 is greater than that of the first guide roller 2. The second guide roller 3 can provide a certain support for the film, ensuring the stability of the film being held between the first guide roller 2 and the second guide roller 3.

[0050] In one optional embodiment of this utility model, such as Figure 1 As shown, the film thickness detection device also includes a support rod 5 arranged vertically. The measuring rod 1 and the second guide roller 3 are located on the same side of the support rod 5. The second guide roller 3 is rotatably connected to the support rod 5. An operating plate 8 is rotatably connected to the top of the support rod 5. The measuring rod 1 is located below the operating plate 8 and the top of the measuring rod 1 is connected to the operating plate 8. By rotating the operating plate 8, the measuring rod 1 can be pulled up or lowered, thereby driving the measuring rod 1 to move vertically. This achieves the purpose of manually controlling the distance between the first guide roller 2 and the second guide roller 3. When clamping the film, the distance between the first guide roller 2 and the second guide roller 3 can be manually controlled to be at least greater than the thickness of the film so that the film can be smoothly placed between the first guide roller 2 and the second guide roller 3.

[0051] Specifically, such as Figure 1 and Figure 2 As shown, the central axis of the first guide roller 2 extends horizontally, and a first rotating shaft 201 is provided at the central axis of the first guide roller 2. The first guide roller 2 is rotatably connected to the lower side wall of the measuring rod 1 through the first rotating shaft 201. The central axis of the second guide roller 3 is parallel to the central axis of the first guide roller 2, and a second rotating shaft (not shown) is provided at the central axis of the second guide roller 3. The second guide roller 3 is rotatably connected to the lower side wall of the support rod 5 through the second rotating shaft.

[0052] Furthermore, such as Figure 1As shown, the top of the support rod 5 has a mounting groove 501; the operation plate 8 includes an execution section 801 and an operation section 802. One end of the execution section 801 is connected to one end of the operation section 802. The connection between the execution section 801 and the operation section 802 is located within the mounting groove 501 and is rotatably connected to the inner wall of the mounting groove 501. The measuring rod 1 is located below the execution section 801, and the top of the measuring rod 1 is connected to the bottom of the execution section 801. The operator can manually press down on the operation section 802 to raise the execution section 801 a certain distance. This causes the execution section 801 to move the measuring rod 1 and the first guide roller 2 upwards a certain distance, thereby adjusting the distance between the first guide roller 2 and the second guide roller 3. When the operator stops pressing down on the operation section 802, the measuring rod 1 and the first guide roller 2 will automatically fall down, at least under their own weight, until the first guide roller 2 and the second guide roller 3 cooperate to clamp the film, thus achieving automatic film clamping. Since the first guide roller 2 and the second guide roller 3 do not tightly clamp the film so that it cannot move, when it is necessary to detect the thickness of other parts of the film, the position of the film clamped between the first guide roller 2 and the second guide roller 3 can be changed by manually moving the film by the operator or by other equipment. This makes it more convenient to detect the thickness of other parts of the film without the need to adjust the measuring device. It effectively solves the cumbersome operation of point-to-point measurement of the film using vernier calipers, and the measurement method is simpler and easier to implement.

[0053] In one optional embodiment of this utility model, such as Figures 1 to 3 As shown, the film thickness detection device also includes a measuring box 6. The side wall of the measuring box 6 is fixedly connected to the side wall of the support rod 5. The measuring box 6 is located between the operating plate 8 and the second guide roller 3. The top of the measuring box 6 has a first opening 601 communicating with its interior, and the bottom of the measuring box 6 has a second opening 602 communicating with its interior. The first opening 601 and the second opening 602 are vertically opposite each other. The measuring rod 1 can pass through the measuring box 6 vertically through the first opening 601 and the second opening 602. The displacement sensor 4 is located inside the measuring box 6. The measuring box 6 can provide a certain degree of protection for the displacement sensor 4.

[0054] Furthermore, such as Figure 1 and Figure 4As shown, a display screen 7 is installed on the measuring box 6, and a controller 10 is also installed inside the measuring box 6. The detection signal output terminal of the displacement sensor 4 is electrically connected to the detection signal receiving terminal of the controller 10, and the detection signal output terminal of the controller 10 is electrically connected to the signal receiving terminal of the display screen 7. After the displacement sensor 4 collects the corresponding data, it can directly send it to the controller 10 and transmit it to the display screen 7 for display. In addition, the detection signal output terminal of the controller 10 is also electrically connected to an external control terminal 11, and the signal output terminal of the control terminal 11 is electrically connected to the signal receiving terminal of the display screen 7. The control terminal 11 can generate a thickness map of the thin film based on the data collected by the displacement sensor 4, which is then displayed on the display screen 7.

[0055] The controller 10 can be, but is not limited to, a microcontroller controller, and the control terminal 11 can be, but is not limited to, a computer or a smartphone. Graphical production software can be pre-installed in the control terminal 11. Based on the thickness values ​​of the received film at different locations, a thickness map of the film can be generated. The specific thickness values ​​and the generated thickness map are displayed on the display screen 7 at the same time, so that the staff can more intuitively analyze the uniformity of the overall thickness of the film and determine the location of defects in the film (i.e., areas where the film thickness variation is greater than a preset threshold). Based on the thickness values ​​and the generated thickness map, it can be determined whether the film meets the requirements or not, and timely modifications can be made to ensure the quality of the film.

[0056] Specifically, when the film being measured is a ring-shaped film, the film can be placed on the second guide roller 3, and at least a portion of the film can be held by the cooperation of the first guide roller 2 and the second guide roller 3. By slowly pulling the film to rotate one revolution, the thickness of the film at a corresponding length position can be measured, and a result such as... Figure 5 The thickness map shown shows the thickness around the film detection location, with the bent ring portion representing the thickness of the entire circumference. When the film being measured is a long strip, it can be directly clamped between the first guide roller 2 and the second guide roller 3, and the film can be slowly pulled to move it, thus completing the thickness detection in the length or width direction at the corresponding location and generating a thickness map like the one shown. Figure 6 The thickness diagram shown.

[0057] Furthermore, such as Figure 1 As shown, an encoder 13 is connected to one end of the second guide roller 3. When detecting the thickness of the film, the encoder 13 can be used to determine the position of the film detection (e.g., the thickness of the film at different length positions can be obtained), making the detection more accurate.

[0058] In one optional embodiment of this utility model, such as Figure 2As shown, the measuring rod 1 located inside the measuring box 6 has a limiting block 101, and a spring 9 is sleeved on the measuring rod 1 inside the measuring box 6. The bottom end of the spring 9 abuts against the top of the limiting block 101, and the top end of the spring 9 abuts against the inner top wall of the measuring box 6. When the operator manually lifts the measuring rod 1, the spring 9 is compressed, at which time the film can be placed between the first guide roller 2 and the second guide roller 3. When the lifting of the measuring rod 1 is stopped, the spring force of the spring 9 pushes the measuring rod 1 and the first guide roller 2 downward synchronously. The spring force of the spring 9 and the weight of the measuring rod 1 and the first guide roller 2 work together to ensure the stability of the first guide roller 2 and the second guide roller 3 in clamping the film, avoiding the situation where the film cannot be clamped by the weight of the measuring rod 1 and the first guide roller 2 alone.

[0059] In one optional embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the first opening 601 and the second opening 602 are vertically opposite each other and are both elongated openings. The length direction of the first opening 601 and the second opening 602 is parallel to the axial direction of the second guide roller 3. In actual operation, the relative position of the first guide roller 2 and the second guide roller 3 can be changed by adjusting the position of the measuring rod 1 within the first opening 601 and the second opening 602. Thus, not only can the thickness of the film at different positions be detected by adjusting the position of the film, but the thickness of the film at different positions can also be detected by adaptively adjusting the position of the measuring rod 1.

[0060] In one optional embodiment of this utility model, such as Figure 1 As shown, the membrane thickness detection device also includes a base 12, and the bottom end of the support rod 5 is connected to the base 12. The base 12 can be placed on the working surface to ensure the stable operation of the equipment.

[0061] The features and advantages of this membrane thickness detection device are as follows:

[0062] First, this film thickness detection device has a simple structure and is easy to operate. Compared with manual measurement of single-point thickness of film, it has higher detection accuracy.

[0063] Second, this film thickness detection device can not only obtain the thickness value of the film at different positions, but also know the uniformity of the film thickness in a certain direction, so as to achieve the purpose of detecting the film quality and obtain better measurement results.

[0064] Third, the film thickness detection device, through the cooperation of the first guide roller 2, the second guide roller 3 and the encoder 13, can determine the film detection position according to the encoder 13 when detecting the film thickness, so as to make the detection more accurate.

[0065] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0066] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0067] The above are merely several embodiments of this utility model. Although the embodiments disclosed in this utility model are as described above, the content is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model should fall within the protection scope of this utility model.

Claims

1. A film thickness detecting device characterized by comprising: The film thickness detection device comprises: a measuring rod vertically arranged and vertically movable, a first guide roller arranged at the bottom of the measuring rod; a second guide roller arranged below the first guide roller, the second guide roller and the first guide roller being used to clamp the film to be detected; a displacement sensor arranged on the measuring rod, used to obtain the vertical movement distance of the measuring rod at different positions of the film.

2. The film thickness detecting apparatus according to claim 1, wherein The film thickness detection device further comprises a vertically arranged support rod, the measuring rod and the second guide roller being arranged on the same side of the support rod, a handle plate being rotatably connected to the support rod, the measuring rod being arranged below the handle plate and the top end of the measuring rod being connected to the handle plate, the handle plate being rotated to drive the measuring rod to move vertically; the second guide roller being rotatably connected to the support rod.

3. The film thickness detecting apparatus according to claim 2, wherein The central axis of the first guide roller extends horizontally, a first rotating shaft being arranged at the central axis of the first guide roller, the first guide roller being rotatably connected to the lower side wall of the measuring rod through the first rotating shaft; the central axis of the second guide roller being parallel to the central axis of the first guide roller, a second rotating shaft being arranged at the central axis of the second guide roller, the second guide roller being rotatably connected to the lower side wall of the support rod through the second rotating shaft.

4. The film thickness detecting apparatus according to claim 2, wherein The top of the support rod has a mounting groove; the handle plate comprising an execution section and an operation section, one end of the execution section being connected to one end of the operation section, the connection position of the execution section and the operation section being arranged in the mounting groove and rotatably connected to the inner wall of the mounting groove, the measuring rod being arranged below the execution section and the top end of the measuring rod being connected to the bottom of the execution section.

5. The film thickness detecting apparatus according to claim 2, wherein The film thickness detection device further comprises a measuring box, the side wall of the measuring box being connected to the side wall of the support rod, the measuring box being arranged between the handle plate and the second guide roller, the top and the bottom of the measuring box respectively having a first opening and a second opening in communication with the inside, the measuring rod vertically passing through the measuring box through the first opening and the second opening, the displacement sensor being arranged in the measuring box.

6. The film thickness detecting apparatus according to claim 5, wherein The measuring rod arranged in the measuring box has a limiting block, a spring being arranged on the measuring rod arranged in the measuring box, the bottom end of the spring abutting against the top of the limiting block, the top end of the spring abutting against the inner wall of the top of the measuring box.

7. The film thickness detecting apparatus according to claim 5, wherein The first opening and the second opening are vertically opposite and both are long strip-shaped openings, the length direction of the first opening and the second opening being parallel to the axial direction of the second guide roller, the relative position of the first guide roller and the second guide roller being changed by adjusting the position of the measuring rod in the first opening and the second opening.

8. The film thickness detecting apparatus according to claim 5, wherein The measuring box is provided with a display screen, the measuring box is provided with a controller, the detection signal output end of the displacement sensor being electrically connected to the detection signal receiving end of the controller, the detection signal output end of the controller being electrically connected to the signal receiving end of the display screen. The detection signal output terminal of the controller is electrically connected to an external control terminal, and the signal output terminal of the control terminal is electrically connected to the signal receiving terminal of the display screen. The control terminal is used to generate a thickness map based on the data collected by the displacement sensor, which is then displayed on the display screen.

9. The film thickness detecting apparatus according to claim 1, wherein An encoder is connected to the second guide roller.

10. The film thickness detecting apparatus according to claim 2, wherein The membrane thickness detection device also includes a base, and the bottom end of the support rod is connected to the base.

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