Device for on-line detection of capacitor film thickness

Abstract

The utility model discloses a capacitor film thickness on-line detection device which comprises a base, a pair of detection guide rollers are erected on the base through a support, a row of thickness measuring probes are distributed above the detection guide rollers, and a film charging barrel and a winding drum are arranged on the base and located on the front side and the rear side of the support respectively. The thin film charging barrel and the winding drum are supported through two sets of fixed side frames and movable side frames respectively, the opposite faces of the fixed side frames and the movable side frames are rotationally connected with chucks, and a pressure adjusting structure is arranged between the chucks on the movable side frames used for supporting the thin film charging barrel and the movable side frames. Certain resistance is formed for rotation between the chuck and the movable side frame by arranging the pressure adjusting structure, the situation that the chuck drives the film charging barrel to rotate excessively is avoided, the situation that a film to be detected is loose and difficult to straighten and detect is avoided, meanwhile, by adjusting the resistance between the resistance pad and the chuck, the situation that the chuck rotates unsmoothly due to the fact that the resistance is too large can be avoided, and the detection accuracy is improved. Therefore, the to-be-detected film is prevented from being pulled and deformed.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitor film detection, in particular to an online device for detecting the thickness of a capacitor film. Background Art

[0002] Capacitor film refers to a type of film used in film capacitors, and common plastic films include polyethylene, polypropylene, polystyrene or polycarbonate. Capacitor film has become an indispensable key to many types of capacitors. The thicker the capacitor film, the higher the voltage it can withstand, and vice versa. Therefore, capacitor film thickness measurement is an important physical performance test indicator.

[0003] In the prior art, when measuring capacitor film, the capacitor film coil is rolled up by a roller, the capacitor film is straightened and moved between thickness gauges for thickness measurement. However, the tensile strength of the capacitor film material is relatively low. When the tension is too large, the capacitor film is easily pulled and deformed during the rolling process, which not only causes damage to the capacitor film, but also affects the thickness measurement result when deformed. When the tension is too small, the capacitor film is loose and not straightened, which also affects the thickness measurement result.

[0004] Therefore, we propose an online device for detecting capacitor film thickness to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an online device for detecting the thickness of capacitor films, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] An online device for detecting the thickness of a capacitor film comprises a base, a pair of detection guide rollers are mounted on the base through a bracket, and a row of thickness measuring probes are distributed above the detection guide rollers, a film barrel and a winding drum are respectively arranged on the base at the front and rear sides of the bracket, and the film barrel and the winding drum are respectively supported by two groups of fixed side frames and a movable side frame, and the opposite surfaces of the fixed side frame and the movable side frame are rotatably connected with a chuck, and a pressure regulating structure is arranged between the chuck on the movable side frame for supporting the film barrel and the movable side frame;

[0008] The pressure adjustment structure includes a pressure plate, a resistance pad is connected to one side of the pressure plate close to the chuck, and an adjustment plate is installed on the other side of the pressure plate through a spring, an adjustment ring is coaxially connected to the adjustment plate, and a central axis passes through the interior of the pressure plate, the resistance pad, the adjustment plate and the adjustment ring, and the central axis is threadedly connected to the adjustment ring.

[0009] In a further embodiment, the springs are distributed in a plurality of groups along the circumference of the pressure plate.

[0010] In a further embodiment, a sliding groove is provided on the outer wall of one end of the central shaft close to the pressure plate, and a sliding block is connected to the inner ring of the pressure plate. The sliding block is inserted into the sliding groove and is slidably connected to the central shaft.

[0011] In a further embodiment, a plurality of positioning holes are formed through both end surfaces of the pressure plate, and a plurality of convex balls corresponding to the positioning holes are formed on one end surface of the resistance pad, and the convex balls pass through the positioning holes and are engaged with the pressure plate.

[0012] In a further embodiment, the resistance pad is composed of two independent semi-annular pad bodies.

[0013] In a further embodiment, a screw rod and a polished rod penetrate the bottom end of the movable side frame, and the screw rod and the polished rod are parallel to each other and rotatably connected to the base through a bearing seat, and one end of the screw rod passing through the bearing seat is connected to an adjustment handle.

[0014] In a further embodiment, a bevel gear 1 is installed between the adjusting handle and the screw rod, the outer edge of the bevel gear 1 is meshingly connected with a bevel gear 2, and the two bevel gears 2 are connected by a connecting rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model forms a certain resistance to the rotation between the chuck and the movable side frame by arranging the resistance pad in the pressure regulating structure when the chuck is close to the chuck where the film barrel is located, so as to prevent the chuck from driving the film barrel to rotate too much, thereby preventing the film to be detected from being loose and difficult to be stretched and detected. At the same time, the pressure of the spring on the pressure plate is adjusted by rotating the adjusting ring, and then the resistance between the resistance pad and the chuck is adjusted, so that the chuck can be prevented from rotating poorly due to excessive resistance, thereby preventing the film to be detected from being pulled and deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the isometric structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the local structure of the pressure regulating structure and the movable side frame installation of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0020] Figure 4 This is a schematic diagram of the installation structure of the resistance pad and the pressure plate of the utility model;

[0021] Figure 5 This is a schematic diagram of a partially cutaway structure of the resistance pad and pressure plate installation of the utility model;

[0022] Figure 6 It is a schematic diagram of the local structure of the movable side frame and the base installation of the utility model.

[0023] In the figure: 1. base; 2. bracket; 3. detection guide roller; 4. thickness measuring probe; 5. film barrel; 6. reel; 7. fixed side frame; 8. movable side frame; 81. screw; 82. light rod; 83. adjustment handle; 84. bevel gear one; 85. bevel gear two; 86. connecting rod; 9. chuck; 10. pressure plate; 101. slider; 102. positioning hole; 11. resistance pad; 111. convex ball; 12. spring; 13. adjustment plate; 14. adjustment ring; 15. center axis; 151. slide groove. DETAILED DESCRIPTION

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "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 drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of the present utility model, 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 the present utility model can be understood by specific circumstances.

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1, an online device for detecting the thickness of a capacitor film, comprising a base 1, a bracket 2 is installed above the left and right sides of the middle area of ​​the base 1, and a pair of detection guide rollers 3 are rotatably installed between the brackets 2, the pair of detection guide rollers 3 are of the same height and parallel to each other, and a row of thickness measuring probes 4 are installed on the inner top surface of the bracket 2, the thickness measuring probes 4 are located above the detection guide rollers 3, and the capacitor film forms a horizontal detection area facing the thickness measuring probes 4 when passing through the pair of detection guide rollers 3, so that the thickness measuring probes 4 can be detected. In order to facilitate users to understand the thickness measurement data in time, the thickness measuring device also includes a control module and a display module (not shown in the figure), the thickness measuring probe 4 is connected to the control module to transmit the measurement signal to the control module, and the control module is connected to the display module to display the measurement result through the display module, a film barrel 5 is provided on the front side of the bracket 2 on the base 1, and a winding drum 6 is provided on the rear side, and the two ends of the film barrel 5 are respectively connected by a fixed side frame 7 and a movable side frame 8 The two ends of the roll 6 are also supported by the fixed side frame 7 and the movable side frame 8, wherein the fixed side frame 7 is fixed to the base 1, and the movable side frame 8 is slidably connected to the base 1, so as to facilitate the movement of approaching or moving away from the fixed side frame 7, thereby facilitating the clamping or disassembly of the film barrel 5 or the roll 6. The opposite surfaces of the fixed side frame 7 and the movable side frame 8 are rotatably connected with a clamp 9, which can be inserted into the barrel mouths at both ends to clamp the film barrel 5 or the roll 6. The clamp 9 can rotate relative to the fixed side frame 7 and the movable side frame 8, thereby driving the clamped film barrel 5 or the roll 6 to rotate, so that the film on the film barrel 5 is spread out from the lower end, passes over a pair of detection guide rollers 3, and then passes through the bottom of the roll 6 for winding, so that when the roll 6 rotates counterclockwise, the pulled film is spread out counterclockwise from the film barrel 5, and in order to facilitate the driving of the roll 6 to be rolled up, a driving motor is installed on the fixed side frame 7 supporting the roll 6, and the output shaft of the driving motor is connected to the clamp 9 on the fixed side frame 7.

[0028] See also Figure 1-2In order to facilitate the control of the film to be stretched and moved while avoiding pulling and deformation, a pressure regulating structure is provided between the clamp 9 on the movable side frame 8 for supporting the film barrel 5 and the movable side frame 8. The pressure regulating structure includes a pressure plate 10. A resistance pad 11 is connected to the side of the pressure plate 10 close to the clamp 9. The resistance pad 11 can be close to the clamp 9, thereby bringing a certain resistance to the rotation of the clamp 9 to prevent it from being too much and causing the film to loosen. An adjusting plate 13 is installed on the other side of the pressure plate 10 through a spring 12, and the spring 12 is distributed in multiple groups along the circumference of the pressure plate 10, so that the pressure distribution on the surface of the pressure plate 10 during compression is It is more uniform and stable. The adjusting plate 13 is coaxially connected to the side of the movable side frame 8 by an adjusting ring 14, and the pressure plate 10, the resistance pad 11, the adjusting plate 13 and the adjusting ring 14 are all penetrated by a central axis 15. One end of the central axis 15 is fixed to the movable side frame 8, and the other end is rotatably connected to the chuck 9. The central axis 15 is threadedly connected to the adjusting ring 14. At this time, when the adjusting ring 14 is rotated, the adjusting ring 14 moves along the length direction of the central axis 15, thereby driving the adjusting ring 14 to compress the spring 12, and the spring 12 squeezes the pressure plate 10, thereby increasing the pressure between the resistance pad 11 and the chuck 9, which is convenient for increasing the resistance of the chuck 9 when it rotates.

[0029] See also Figure 2-3 In order to improve the stability of the pressure plate 10, a slide groove 151 is provided on the outer wall of one end of the central axis 15 close to the pressure plate 10, and a slider 101 is connected to the inner ring of the pressure plate 10. The slider 101 is inserted into the slide groove 151 and is slidably connected to the central axis 15. The pressure plate 10 is limited by the slider 101 and the slide groove 151, which helps to prevent the pressure plate 10 from being deflected by the chuck 9.

[0030] See also Figure 4-5 Considering that the chuck 9 is constantly rubbing against the resistance pad 11 when rotating, the resistance pad 11 will be worn out after long-term use. In order to facilitate the replacement of the resistance pad 11, a plurality of positioning holes 102 are provided on both end faces of the pressure plate 10, and a plurality of convex balls 111 corresponding to the positioning holes 102 are provided on one end face of the resistance pad 11. The convex balls 111 pass through the positioning holes 102 and are engaged with the pressure plate 10, so that the resistance pad 11 is easy to disassemble and assemble relative to the pressure plate 10, and the resistance pad 11 is composed of two independent semi-annular pad bodies, so that the resistance pad 11 can be disassembled and replaced without disassembling the pressure plate 10, which is more convenient.

[0031] See also Figure 1 and Figure 6The two ends of the screw 81 and the polished rod 82 are respectively provided with bearing seats, and the bearing seats are fixed to the upper surface of the base 1. The end of the screw 81 passing through the bearing seat is connected with an adjusting handle 83. By rotating the adjusting handle 83, the movable side frame 8 can be driven to move along the length direction of the screw 81 and the polished rod 82. In order to further simplify the operation steps during disassembly and assembly, a bevel gear 1 84 is installed between the adjusting handle 83 and the screw 81. The outer edge of the bevel gear 1 84 is meshed and connected with a bevel gear 2 85. The bevel gear 2 85 at the bottom of the movable side frame 8 for supporting the film material barrel 5 and the bevel gear 2 85 at the bottom of the movable side frame 8 for supporting the reel 6 are connected by a connecting rod 86, so that the two movable side frames 8 can be adjusted synchronously, which is more time-saving and labor-saving.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An online device for detecting capacitor film thickness, comprising a base (1), a pair of detection guide rollers (3) being mounted on the base (1) via a bracket (2), and a row of thickness measuring probes (4) being distributed above the detection guide rollers (3), characterized in that: The base (1) is provided with a film barrel (5) and a winding drum (6) on the front and rear sides of the bracket (2), respectively, and the film barrel (5) and the winding drum (6) are supported by two sets of fixed side frames (7) and movable side frames (8), respectively, and the opposite surfaces of the fixed side frames (7) and the movable side frames (8) are rotatably connected with a clamp (9), and a pressure regulating structure is provided between the clamp (9) on the movable side frame (8) for supporting the film barrel (5) and the movable side frame (8); The pressure regulating structure comprises a pressure plate (10), a resistance pad (11) being connected to one side of the pressure plate (10) close to the chuck (9), and an adjustment plate (13) being installed on the other side of the pressure plate (10) via a spring (12), an adjustment ring (14) being coaxially rotatably connected to the adjustment plate (13), and a central shaft (15) passing through the interiors of the pressure plate (10), the resistance pad (11), the adjustment plate (13) and the adjustment ring (14), and the central shaft (15) being threadedly connected to the adjustment ring (14).

2. The device for online detection of capacitor film thickness according to claim 1, characterized in that: The springs (12) are distributed in multiple groups along the circumference of the pressure plate (10).

3. The device for online detection of capacitor film thickness according to claim 1, characterized in that: A sliding groove (151) is provided on the outer wall of one end of the central shaft (15) close to the pressure plate (10), and a sliding block (101) is connected to the inner ring of the pressure plate (10). The sliding block (101) is inserted into the sliding groove (151) and is slidably connected to the central shaft (15).

4. The device for online detection of capacitor film thickness according to claim 1, characterized in that: A plurality of positioning holes (102) are formed through both end surfaces of the pressure plate (10), and a plurality of convex balls (111) corresponding one to the positioning holes (102) are formed on one end surface of the resistance pad (11), wherein the convex balls (111) penetrate the interior of the positioning holes (102) and are engaged with the pressure plate (10).

5. The device for online detection of capacitor film thickness according to claim 1, characterized in that: The resistance pad (11) consists of two independent semi-annular pad bodies.

6. The device for online detection of capacitor film thickness according to claim 1, characterized in that: A screw rod (81) and a smooth rod (82) are passed through the bottom end of the movable side frame (8), and the screw rod (81) and the smooth rod (82) are parallel to each other and are rotatably connected to the base (1) through a bearing seat, and an end of the screw rod (81) passing through the bearing seat is connected to an adjustment handle (83).

7. The device for online detection of capacitor film thickness according to claim 6, characterized in that: A bevel gear 1 (84) is also installed between the adjustment handle (83) and the screw rod (81), and the outer edge of the bevel gear 1 (84) is meshingly connected with a bevel gear 2 (85), and the two bevel gears 2 (85) are connected via a connecting rod (86).

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