Film plate tensioning mechanism of film capacitor

Abstract

The utility model belongs to the technical field of metallized film capacitor winding machines, and particularly relates to a film disc tensioning mechanism of a film capacitor. According to the film capacitor film disc tensioning mechanism, the pull rod is pushed forwards through the pull rod pushing mechanism to drive the circular truncated cone to move forwards, so that the top block retracts into the through hole, and the material disc arranged on the material disc seat in a sleeving manner can be loosened; and the pull rod can be driven to move backwards through the reset mechanism so as to drive the circular truncated cone to move backwards, so that the ejection block extends out of the through hole, and the material disc arranged on the material disc seat in a sleeving manner is fixed. In other words, the adjusting nut does not need to be screwed down manually when the material disc is clamped and replaced by the film capacitor film disc tensioning mechanism, operation is easy and convenient, and efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallized film capacitor winding machines, and in particular relates to a film capacitor film disc tensioning mechanism. Background Art

[0002] Metallized film capacitors are capacitors made by winding or laminating double-sided metallized polypropylene film and non-metallized polypropylene film. Film capacitors are excellent capacitors because they have many excellent properties. They are non-polar, have high insulation impedance, excellent frequency characteristics (wide frequency response), and very low dielectric loss.

[0003] The conventional method of making film capacitors is to use aluminum or other metal foil as electrodes and overlap plastic film and then wind them together. The process involves unwinding, winding and cutting.

[0004] Patent CN108438980A discloses a material tray device in a winding machine, which uses a material tray fixed on a retracting mechanism to position the reel, and uses an adjusting nut to push a push-pull shaft to tighten and fix the reel, and uses an adjusting mechanism to adjust the position of the reel relative to a reference plate. This structure can effectively position and clamp the reel. However, the clamping process of the device requires manual tightening of the adjusting nut, which is cumbersome and inefficient, and has poor clamping stability. Utility Model Content

[0005] The utility model aims to provide a film capacitor film disc tensioning mechanism to solve the technical problem of low efficiency of winding drum clamping in the existing material disc device.

[0006] The present application provides a film capacitor film disc tensioning mechanism. The film capacitor film disc tensioning mechanism comprises:

[0007] substrate;

[0008] A shaft seat is arranged through the base plate;

[0009] The internally hollow rotating shaft is rotatably arranged in the shaft seat;

[0010] The pull rod is arranged inside the rotating shaft, and its front end extends out of the rotating shaft and is fixed with a round table;

[0011] The material tray seat is fixed on the front part of the rotating shaft exposed from the shaft seat; the material tray seat comprises a cylinder sleeved on the outer periphery of the truncated cone, and a plurality of through holes are arranged on the side wall of the cylinder; a plurality of blocks are arranged between the cylinder and the truncated cone, and top blocks correspondingly accommodated in the through holes are arranged on the outer side surfaces of the blocks, and the inner side surfaces are inclined surfaces matched with the outer side surfaces of the truncated cone;

[0012] A pull rod pushing mechanism is fixed to the rear end of the shaft seat and is used to push the pull rod forward to drive the round table to move forward so that the top block retracts into the through hole; and

[0013] The reset mechanism is fixed at the rear end of the shaft seat and is used to drive the pull rod to move backwards, so as to drive the round table to move backwards, so that the top block extends out from the through hole.

[0014] In one embodiment of the present application, a stopper is provided at the front of the rotating shaft;

[0015] The rear end of the material tray seat abuts against the front side of the stopper.

[0016] In one embodiment of the present application, a motor mounting plate is fixed to the rear end surface of the shaft seat.

[0017] In one embodiment of the present application, the pull rod pushing mechanism includes:

[0018] The cylinder mounting frame is fixed on the motor mounting plate;

[0019] The cylinder is fixed on the cylinder mounting frame, and its push rod is coaxial with the pull rod and is arranged at intervals, and is used to push the rear end of the pull rod.

[0020] In one embodiment of the present application, the reset mechanism includes:

[0021] An end block, fixed to the rear end of the tie rod;

[0022] The spring is sleeved on the rod body exposed on the rotating shaft at the rear of the pull rod, and the two ends of the spring respectively abut against the end block and the rear end of the rotating shaft.

[0023] In one embodiment of the present application, corresponding bearing chambers are respectively provided on the inner sides of both ends of the shaft seat.

[0024] In one embodiment of the present application, an end seat is fixed to the front end of the pull rod;

[0025] The truncated table is fixedly connected to the end seat.

[0026] The beneficial effects of the utility model are:

[0027] Different from the prior art, the present application provides a film capacitor film disc tensioning mechanism. The film capacitor film disc tensioning mechanism pushes the pull rod forward through the pull rod pushing mechanism to drive the round table to move forward, so that the top block retracts into the through hole, thereby loosening the material disc sleeved on the material disc seat; and the pull rod can be driven to move backward through the reset mechanism to drive the round table to move backward, so that the top block extends out of the through hole, thereby fixing the material disc sleeved on the material disc seat. In other words, the film capacitor film disc tensioning mechanism of the present application does not need to manually tighten the adjustment nut when clamping or replacing the material disc, and the operation is simple, convenient and efficient.

[0028] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by practicing the utility model. The purpose and other advantages of the utility model are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 It is a schematic diagram of a film capacitor film disk tensioning mechanism of a preferred embodiment of the utility model;

[0032] Figure 2 It is an axial schematic diagram of a film capacitor film disk tensioning mechanism of a preferred embodiment of the utility model;

[0033] Figure 3 yes Figure 2 Sectional view along AA direction;

[0034] Figure 4 It is a partial assembly diagram of a film capacitor film disk tensioning mechanism of a preferred embodiment of the utility model.

[0035] In the figure:

[0036] Base plate 1, shaft seat 2, bearing chamber 21, rotating shaft 3, stop block 31, pull rod 4, end seat 41, truncated table 5, material tray seat 6, cylinder 61, through hole 611, block 612, top block 613, pull rod pushing mechanism 7, cylinder mounting frame 71, cylinder 72, reset mechanism 8, end block 81, spring 82, motor mounting plate 9. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0038] The present application provides a film capacitor film disk tensioning mechanism, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0039] See also Figures 1 to 4 As shown, an embodiment of the present application provides a film capacitor film disc tensioning mechanism, comprising: a substrate 1; a shaft seat 2, which is arranged through the substrate 1; an internally hollow rotating shaft 3, which is rotatably arranged in the shaft seat 2; a pull rod 4, which is arranged inside the rotating shaft 3, and its front end extends out of the rotating shaft 3 and is fixed with a round table 5; a material disc seat 6, which is fixed to the front part of the rotating shaft 3 exposed outside the shaft seat 2; the material disc seat 6 includes a cylinder 61 sleeved on the outer periphery of the round table 5, and a plurality of through holes 611 are arranged on the side wall of the cylinder 61; between the cylinder 61 and the round table 5 A plurality of blocks 612 are provided, and a top block 613 correspondingly accommodated in the through hole 611 is provided on the outer surface of the block 612, and the inner surface is an inclined surface matching the outer surface of the table 5; a pull rod pushing mechanism 7 is fixed at the rear end of the shaft seat 2, and is used to push the pull rod 4 forward to drive the table 5 to move forward so that the top block 613 retracts into the through hole 611; and a reset mechanism 8 is fixed at the rear end of the shaft seat 2, and is used to drive the pull rod 4 to move backward to drive the table 5 to move backward so that the top block 613 extends out from the through hole 611.

[0040] In this embodiment, specifically, the small diameter end of the cone 5 faces the rear side, and the large diameter end faces the front side; because the inner side surface of each block 612 is an inclined surface, when the cone 5 moves forward, the block 612 contracts inward, driving the corresponding top block 613 to retract into the through hole 611, and the material tray sleeved on the cylinder 61 can be removed; after a new material tray is sleeved on the cylinder 61, when the cone 5 moves backward, the block 612 is pushed outward, driving the corresponding top block 613 to extend from the through hole 611 and press against the material tray, thereby fixing the material tray.

[0041] In this embodiment, optionally, a stopper 31 is provided at the front of the rotating shaft 3 ; the rear end of the material tray seat 6 abuts against the front side of the stopper 31 ; the stopper 31 can perform axial positioning on the material tray seat 6 .

[0042] In this embodiment, optionally, a motor mounting plate 9 is fixed to the rear end surface of the shaft seat 2; the motor mounting plate 9 can be used to install a motor for driving the rotating shaft 3 to rotate, thereby driving the material tray seat 6 to rotate.

[0043] In this embodiment, as a preferred implementation of the pull rod pushing mechanism 7, the pull rod pushing mechanism 7 includes: a cylinder mounting frame 71, fixed on the motor mounting plate 9; a cylinder 72, fixed on the cylinder mounting frame 71, and its push rod is coaxial with the pull rod 4 and arranged at intervals, and is used to push the rear end of the pull rod 4.

[0044] In this embodiment, as a preferred implementation of the reset mechanism 8, the reset mechanism 8 includes: an end block 81 fixed to the rear end of the pull rod 4; a spring 82, which is sleeved on the rod body exposed at the rear of the pull rod 4 to the outside of the rotating shaft 3, and its two ends respectively abut against the end block 81 and the rear end of the rotating shaft 3.

[0045] In the present embodiment, specifically, the push rod of the cylinder 72 is arranged at intervals with the pull rod 4. When the material tray needs to be removed, the push rod of the cylinder 72 is pushed out, and after contacting the rear end of the pull rod 4, it drives the pull rod 4 to overcome the elastic force of the spring 82 and continue to push forward, thereby driving the round table 5 to move forward to a preset position and then maintain it. At this time, the material tray can be removed; after the new material tray is installed, the push rod of the cylinder 72 retracts, and at this time the spring 82 drives the pull rod 4 to pull back, thereby driving the round table 5 to move backward to fix the material tray.

[0046] See also Figure 3 Corresponding bearing chambers 21 are respectively arranged on the inner sides of both ends of the shaft seat 2, which can be used to accommodate bearings arranged on the rotating shaft 3.

[0047] In this embodiment, optionally, an end seat 41 is fixed to the front end of the pull rod 4 ; the truncated table 5 is fixedly connected to the end seat 41 , so as to facilitate the installation of the truncated table 5 .

[0048] In summary, the film capacitor film disc tensioning mechanism of the utility model is operated by the cylinder when the material disc is disassembled and assembled, and there is no need to manually tighten the adjustment nut, so the operation is simple and convenient with high efficiency.

[0049] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0050] In the description of the embodiments of the present invention, 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.

[0051] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship 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 limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0052] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A film capacitor film disc tensioning mechanism, It is characterized in that include: substrate; A shaft seat is arranged through the base plate; The internal hollow rotating shaft is rotatably arranged in the shaft seat; The pull rod is arranged inside the rotating shaft, and its front end extends out of the rotating shaft and is fixed with a round table; The material tray seat is fixed on the front part of the rotating shaft exposed from the shaft seat; the material tray seat comprises a cylinder sleeved on the outer periphery of the truncated cone, and a plurality of through holes are arranged on the side wall of the cylinder; a plurality of blocks are arranged between the cylinder and the truncated cone, and top blocks correspondingly accommodated in the through holes are arranged on the outer side surfaces of the blocks, and the inner side surfaces are inclined surfaces matched with the outer side surfaces of the truncated cone; A pull rod pushing mechanism is fixed to the rear end of the shaft seat and is used to push the pull rod forward to drive the round table to move forward so that the top block retracts into the through hole; and The reset mechanism is fixed at the rear end of the shaft seat and is used to drive the pull rod to move backwards, so as to drive the round table to move backwards, so that the top block extends out from the through hole.

2. The film capacitor film disk tensioning mechanism according to claim 1, It is characterized in that A stopper is provided at the front of the rotating shaft; The rear end of the material tray seat abuts against the front side of the stopper.

3. The film capacitor film disk tensioning mechanism according to claim 1, It is characterized in that A motor mounting plate is fixed to the rear end surface of the shaft seat.

4. The film capacitor film disk tensioning mechanism according to claim 3, It is characterized in that The pull rod pushing mechanism comprises: The cylinder mounting frame is fixed on the motor mounting plate; The cylinder is fixed on the cylinder mounting frame, and its push rod is coaxial with the pull rod and is arranged at intervals, and is used to push the rear end of the pull rod.

5. The film capacitor film disk tensioning mechanism according to claim 1, It is characterized in that The reset mechanism comprises: An end block, fixed to the rear end of the tie rod; The spring is sleeved on the rod body exposed on the rotating shaft at the rear of the pull rod, and the two ends of the spring respectively abut against the end block and the rear end of the rotating shaft.

6. The film capacitor film disk tensioning mechanism according to claim 1, It is characterized in that Corresponding bearing chambers are respectively arranged inside the two ends of the shaft seat.

7. The film capacitor film disk tensioning mechanism according to claim 1, It is characterized in that An end seat is fixed to the front end of the pull rod; The truncated table is fixedly connected to the end seat.

Images