Polyester film surface flatness measuring instrument

Abstract

The utility model relates to a polyester film surface flatness measuring instrument, which comprises a frame used for being placed on a measuring reference surface of a polyester film; the micrometric screw rod is rotationally connected to the frame and can move in the direction perpendicular to the measurement reference surface; the bottom end of the micrometric screw is used for abutting against a to-be-measured position of the polyester film. Wherein the frame is provided with a first scale, the micrometric screw is provided with a second scale, the first scale is perpendicular to the second scale, and the height difference of the position to be measured relative to the measurement reference surface is represented through the first scale and the second scale. The device is small, portable, simple to operate and accurate in measurement, and can be used for objectively, accurately and quantitatively testing defects such as edge channeling on the end surface of the thin film, annular bulges on the surface of the thin film, rib cracking, longitudinal wrinkles and the like.

Description

Technical Field

[0001] The present application relates to the technical field of polyester films, and in particular to a polyester film surface flatness measuring instrument. Background Art

[0002] The flatness of the surface of the finished polyester film roll is very important for product manufacturing and quality assurance. The allowable range of bumps and depressions is determined by flatness, and management must be implemented to ensure that it is within the tolerance range. If it cannot be measured accurately and quantitatively, not only will the products with poor shapes be missed, making it difficult to maintain quality, but it will also affect the subsequent processes and reduce the yield rate. In the process of testing the quality of the finished polyester film roll, the determination of the flatness of the film surface is still in the stage of subjectively judging whether the film surface is flat by touching the film with hands, or using laser scanning to measure the flatness of the polyester film. Such equipment is usually bulky, difficult to move, expensive, high in measurement cost, complicated to operate, and difficult to popularize to grassroots employees. At present, there is no instrument that is simple to operate and easy to carry to accurately detect the flatness of the film. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] The present application provides a polyester film surface flatness measuring instrument, which solves the current problem of lack of an instrument that is simple to operate and easy to carry to accurately detect the flatness of the film.

[0005] (2) Technical solution

[0006] The present application provides a polyester film surface flatness measuring instrument, comprising:

[0007] A frame, the frame being used to be placed on a measuring reference surface of the polyester film;

[0008] A micrometer screw, the micrometer screw is rotatably connected to the frame and can move in a direction perpendicular to the measurement reference plane; the bottom end of the micrometer screw is used to abut against the position to be measured of the polyester film;

[0009] The frame is provided with a first scale, the micrometer screw is provided with a second scale, the first scale is perpendicular to the second scale, and the first scale and the second scale represent the height difference of the position to be measured relative to the measurement reference plane.

[0010] Furthermore, the frame includes a frame body and a sleeve; the sleeve is connected to the frame body; the micrometer screw is rotatably connected to the sleeve and is coaxial with the sleeve.

[0011] Furthermore, the frame is arc-shaped.

[0012] Furthermore, the first scale is provided on the sleeve and is arranged along the axial direction of the sleeve.

[0013] Furthermore, two ends of the frame are flush with the same horizontal line.

[0014] Furthermore, the micrometer screw includes a screw body and a screw knob, the screw body is threadedly connected to the sleeve, and the screw knob is connected to the screw body.

[0015] Furthermore, the second scale is arranged at the bottom end of the screw knob and is arranged along the circumference of the screw knob.

[0016] Furthermore, when the bottom end of the screw rod body and the two ends of the frame body are flush with the same horizontal line, the reference line of the first scale is aligned with the 0 scale line of the second scale.

[0017] Furthermore, it also includes:

[0018] A stop knob is threadedly connected to the frame, and an end of the stop knob abuts against the screw rod.

[0019] (3) Beneficial effects

[0020] The above technical solution of the present application has the following advantages:

[0021] The polyester film surface flatness measuring instrument provided by the present application, when in use, places the frame on the measurement reference plane of the polyester film, and rotates the micrometer screw to move the micrometer screw in a direction perpendicular to the measurement reference plane until the bottom end of the micrometer screw abuts against the position to be measured on the polyester film, so that the height difference of the position to be measured relative to the measurement reference plane can be represented by the first scale on the frame and the second scale on the micrometer screw, thereby measuring the surface flatness of the polyester film. The flatness measuring instrument is compact and portable, easy to operate, and accurate in measurement. It can conduct an objective, accurate, and quantitative test on the edge deviation on the end face of the film, the annular protrusions, ribs, longitudinal wrinkles, and other defects on the surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of a polyester film surface flatness measuring instrument provided in this application;

[0024] Figure 2 Schematic diagram of the application of the polyester film surface flatness measuring instrument provided in this application;

[0025] Figure 3 Schematic diagram of the application of the polyester film surface flatness measuring instrument provided in this application;

[0026] Figure numerals: 1, frame; 11, first scale; 12, frame body; 13, sleeve; 2, micrometer screw; 21, second scale; 22, screw rod body; 23, screw knob; 3, stop knob. DETAILED DESCRIPTION

[0027] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] References to "one embodiment" or "some embodiments" etc. described in the specification of this application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. appearing in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways.

[0031] The specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application but are not intended to limit the scope of the present application.

[0032] The present application embodiment provides a polyester film surface flatness measuring instrument, such as Figure 1 As shown, it includes: a frame 1, which is used to be placed on the measuring reference plane of the polyester film; a micrometer screw 2, which is rotatably connected to the frame 1 and can move in a direction perpendicular to the measuring reference plane; the bottom end of the micrometer screw 2 is used to abut against the position to be measured on the polyester film; wherein, the frame 1 is provided with a first scale 11, and the micrometer screw 2 is provided with a second scale 21, the first scale 11 is perpendicular to the second scale 21, and the first scale 11 and the second scale 21 are used to represent the height difference of the position to be measured relative to the measuring reference plane.

[0033] In some embodiments, the frame 1 includes a frame body 12 and a sleeve 13 ; the sleeve 13 is connected to the frame body 12 ; the micrometer screw 2 is rotatably connected to the sleeve 13 and is coaxial with the sleeve 13 .

[0034] In some embodiments, the frame 12 is arc-shaped.

[0035] In some embodiments, the first scale 11 is disposed on the sleeve 13 and arranged along the axial direction of the sleeve 13 .

[0036] In some embodiments, two ends of the frame 12 are flush with the same horizontal line.

[0037] In some embodiments, the micrometer screw 2 includes a screw body 22 and a screw knob 23 . The screw body 22 is threadedly connected to the sleeve 13 , and the screw knob 23 is connected to the screw body 22 .

[0038] In some embodiments, the second scale 21 is disposed at the bottom end of the screw knob 23 and is arranged along the circumference of the screw knob 23 .

[0039] In some embodiments, when the bottom end of the screw rod body 22 and the two ends of the frame body 12 are flush with each other on the same horizontal line, the reference line of the first scale 11 is aligned with the 0 scale line of the second scale 21 .

[0040] In some embodiments, it further includes: a stop knob 3 , wherein the stop knob 3 is threadedly connected to the frame 12 , and an end of the stop knob 3 abuts against the screw rod 22 .

[0041] In application, the frame 12 and the sleeve 13 are welded together and cannot be moved. A cavity is provided at the connection between the frame 12 and the sleeve 13, so that the screw rod 22 can pass through the sleeve 13 and the frame 12. The screw rod 22 and the screw knob 23 are connected together and can rotate. By rotating the screw knob 23, the screw rod 22 can be moved along the sleeve 13.

[0042] During measurement, the frame can be placed on a specific measurement reference plane, which can be a plane for placing polyester film or other planes. It is necessary to ensure that the reference plane on which the frame is placed remains unchanged.

[0043] The first scale 11 is a fixed scale, and the second scale 21 is a movable scale. The reading method of the polyester film surface flatness measuring instrument is the same as that of the screw micrometer. When the bottom end of the screw rod 22 and the two ends of the frame 12 are flush with the same horizontal line, the reference line of the first scale 11 is aligned with the 0 scale line of the second scale 21, that is, the reading of the polyester film surface flatness measuring instrument is 0.00mm.

[0044] The frame 12 is a metal semicircular arc, and its two ends are flush with the same horizontal line. Figure 2 and Figure 3 As shown, when in use, the two ends of the frame 12 can be placed on the measuring reference plane, and the screw knob 23 can be rotated to make the screw rod 22 move up and down in a spiral manner along a direction perpendicular to the measuring reference plane until the bottom end of the screw rod 22 abuts against the position to be measured on the polyester film, and the stop knob 3 is tightened to fix the micrometer screw 2 for easy reading.

[0045] The reading of the position to be measured of the polyester film is read out through the first scale 11 and the second scale 21, which is the height difference between the position to be measured of the polyester film and the measurement reference surface. The surface flatness of the finished polyester film roll can be calculated based on the reading.

[0046] By measuring the height differences of multiple locations to be measured on the polyester film and comparing them, we can determine whether the surface of the polyester film is flat. If the height differences of multiple locations to be measured are basically the same, it means that the flatness of the polyester film is good. If the height differences of multiple locations to be measured are very different, it means that the flatness of the polyester film is not good.

[0047] The polyester film surface flatness measuring instrument provided in this application is small and portable, economical and affordable, simple and easy to use, and can perform an objective, accurate and quantitative test on defects such as edge deviation, annular protrusions, ribs, longitudinal wrinkles, etc. on the end face of the film.

[0048] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional units and modules is used as an example for illustration. In actual applications, the above-mentioned functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. In addition, the specific names of the functional units and modules are only for the convenience of distinguishing each other, and are not used to limit the scope of protection of this application.

[0049] It should be clear that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For the embodiments of the method, the relevant parts can refer to the partial description of the device embodiment (adopted according to the writing situation). The present application is not limited to the specific steps and structures described above and shown in the figures. In addition, for the sake of simplicity, a detailed description of known method technologies is omitted here.

[0050] The embodiments described above are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be included in the protection scope of the present application.

Claims

1. A polyester film surface flatness measuring instrument, characterized in that: include: A frame, the frame being used to be placed on a measuring reference surface of the polyester film; A micrometer screw, the micrometer screw is rotatably connected to the frame and can move in a direction perpendicular to the measurement reference plane; the bottom end of the micrometer screw is used to abut against the position to be measured of the polyester film; The frame is provided with a first scale, the micrometer screw is provided with a second scale, the first scale is perpendicular to the second scale, and the first scale and the second scale represent the height difference of the position to be measured relative to the measurement reference plane.

2. The polyester film surface flatness measuring instrument according to claim 1, characterized in that: The frame comprises a frame body and a sleeve; the sleeve is connected to the frame body; the micrometer screw is rotatably connected to the sleeve and is coaxial with the sleeve.

3. The polyester film surface flatness measuring instrument according to claim 2, characterized in that: The frame is in an arc shape.

4. The polyester film surface flatness measuring instrument according to claim 2, characterized in that: The first scale is arranged on the sleeve and is arranged along the axial direction of the sleeve.

5. The polyester film surface flatness measuring instrument according to claim 2, characterized in that: The two ends of the frame are flush with the same horizontal line.

6. The polyester film surface flatness measuring instrument according to claim 2, characterized in that: The micrometer screw comprises a screw body and a screw knob, wherein the screw body is threadedly connected to the sleeve, and the screw knob is connected to the screw body.

7. The polyester film surface flatness measuring instrument according to claim 6, characterized in that: The second scale is arranged at the bottom end of the screw knob and is arranged along the circumference of the screw knob.

8. The polyester film surface flatness measuring instrument according to claim 6, characterized in that: When the bottom end of the screw rod body and the two ends of the frame body are flush with the same horizontal line, the reference line of the first scale is aligned with the 0 scale line of the second scale.

9. The polyester film surface flatness measuring instrument according to claim 6, characterized in that: Also includes: A stop knob is threadedly connected to the frame, and an end of the stop knob abuts against the screw rod.

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