Material disc tensioning mechanism and film capacitor winding machine

Abstract

The utility model belongs to the technical field of film capacitor winding machines, and particularly relates to a material disc tensioning mechanism and a film capacitor winding machine. A rotary drum of the material disc tensioning mechanism is arranged in a bearing seat in a penetrating mode and matched with the bearing seat in a rotating mode through a first bearing, and a plurality of strip-shaped holes extending in the axial direction of the rotary drum are formed in the rotary drum. The mandrel is arranged in the rotary drum in a penetrating manner, a plurality of tensioning blocks extending out of the corresponding strip-shaped holes are mounted on the mandrel, and the tensioning blocks are used for tensioning and fixing the material disc; the mandrel moving mechanism can be used for driving the mandrel to move axially, so that the tensioning blocks are driven to move in the corresponding strip-shaped holes, and the position of the material disc is driven to be adjusted. According to the material disc tensioning mechanism, the position of the material disc is adjusted by directly adjusting the position of the core shaft, the rotary drum is kept still, and the technical problems that a certain gap is needed between a motor base and a sliding base, the gap is prone to causing that the motor base is not perpendicular to a base plate, and shaking is large in the rotating process of the material disc in the prior art are solved. In addition, the position of the material disc is directly adjusted by driving the mandrel to move through the mandrel moving mechanism, and compared with the prior art, the structure is simple, and adjustment is convenient.

Description

Technical Field

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

[0002] The material plate assembly is a device used to take up and put away the metallized film of the raw material of the film capacitor in the film capacitor winding machine. In order to enable the film capacitor winding machine to produce capacitors of various specifications, the material plate assembly must be able to adjust its position axially.

[0003] Patent CN208315400U discloses a material disk tensioning and retracting mechanism for a film capacitor winding machine, which fixes the material disk motor on a motor plate, and uses a screw rod to drive the motor plate to move by adjusting the handle, thereby adjusting the position of the material disk. The adjustment is convenient and has high precision; the support slide rod cooperates with the support slide rod seat to play a guiding role, which can improve the stability of the motor plate movement.

[0004] However, in this material disk position adjustment method, the verticality of the motor plate must always be maintained, otherwise it is easy to cause jamming of movement; in addition, in order for the material disk to be able to move, there needs to be a certain gap between the motor seat and the sliding seat, and this gap can easily cause the seat to be not perpendicular to the base plate, resulting in large jitter during the rotation of the material disk. Utility Model Content

[0005] The utility model aims to provide a material disc tensioning mechanism and a film capacitor winding machine to solve the above technical problems.

[0006] The present application provides a material disk tensioning mechanism, comprising:

[0007] A bearing seat, fixed on the base plate;

[0008] The rotating drum is inserted into the bearing seat and rotatably cooperates with the bearing seat through the first bearing; the rotating drum is provided with a plurality of strip holes extending along the axial direction of the rotating drum;

[0009] A core shaft is inserted into the drum and is provided with a plurality of tensioning blocks extending out of corresponding strip holes; and

[0010] The core shaft moving mechanism is used to drive the core shaft to move axially, thereby driving the tensioning block to move in the corresponding strip hole.

[0011] In one embodiment of the present application, a first mounting block is rotatably provided on one end of the mandrel via a second bearing;

[0012] The spindle moving mechanism comprises:

[0013] An adjusting screw rod is mounted on the base plate, and an end portion thereof is connected to a second mounting block via a fisheye bearing;

[0014] The connecting rod seat is fixed on the base plate, and a sliding sleeve is rotatably provided at the end thereof;

[0015] The lever has a middle portion inserted into the sliding sleeve, and two ends thereof are respectively rotatably matched with the first mounting block and the second mounting block.

[0016] In one embodiment of the present application, a screw nut cooperating with the adjusting screw is provided on the substrate.

[0017] In one embodiment of the present application, a first top block, a fixed block, and a second top block are sequentially arranged on the core shaft at intervals;

[0018] The first top block and the second top block are respectively matched with the core shaft through two opposite threads;

[0019] The inner end of the tension block is provided with a V-shaped surface, and the middle of the V-shaped surface is provided with a receiving groove for receiving the fixing block, and the inclined surfaces on both sides of the V-shaped surface are respectively matched with the corresponding inclined surfaces on the first top block and the second top block;

[0020] When the core shaft rotates, the first top block and the second top block move toward or in opposite directions, so as to drive the tension block to retract or extend through the cooperation of the inclined surface with the inclined surfaces on both sides of the V-shaped surface.

[0021] In one embodiment of the present application, a sleeve is sleeved on the core shaft and matches the inner wall of the drum.

[0022] In one embodiment of the present application, a rotating handle is fixed to the end of the core shaft.

[0023] Correspondingly, the present application provides a film capacitor winding machine, comprising: the material disc tensioning mechanism as described above; and a drum driving mechanism for driving the drum to rotate.

[0024] The beneficial effects of the utility model are as follows: the rotating drum of the material disk tensioning mechanism of the utility model is passed through the bearing seat, and the first bearing rotates with the bearing seat to match the bearing seat, and a plurality of strip holes extending along the axial direction of the rotating drum are arranged on the rotating drum; the mandrel is passed through the rotating drum, and a plurality of tensioning blocks extending out of the corresponding strip holes are installed thereon, and the tensioning blocks are used to tighten and fix the material disk; the mandrel moving mechanism can be used to drive the mandrel to move axially, thereby driving the tensioning blocks to move in the corresponding strip holes, and driving the material disk to adjust the position. The material disk tensioning mechanism of the utility model directly adjusts the position of the mandrel to adjust the position of the material disk, and the rotating drum remains stationary, which overcomes the technical problem in the prior art that a certain gap is required between the motor seat and the sliding seat, and the gap is easy to cause the seat to be not perpendicular to the substrate, and the material disk shakes greatly during rotation. In addition, the position adjustment of the material disk is directly achieved by driving the mandrel to move by the mandrel moving mechanism, which is simple in structure and easy to adjust compared with the prior art.

[0025] 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.

[0026] 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

[0027] 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.

[0028] Figure 1 It is a three-dimensional diagram of the material disc tensioning mechanism of the utility model;

[0029] Figure 2 It is a cross-sectional view of the material disc tensioning mechanism of the utility model;

[0030] Figure 3 It is a cross-sectional view of the cooperation between the tension block and the mandrel of the utility model;

[0031] Figure 4 It is an exploded schematic diagram of the cooperation between the tensioning block and the core shaft of the utility model.

[0032] In the figure:

[0033] Bearing seat 1, first bearing 11, base plate 2, rotating drum 3, strip hole 31, core shaft 4, sleeve 41, rotating handle 42, tensioning block 5, V-shaped surface 51, accommodating groove 52, strip groove 53, core shaft moving mechanism 6, adjusting screw 61, screw nut 611, connecting rod seat 62, sliding sleeve 621, lever 63, first mounting block 7, second bearing 71, second mounting block 8, fisheye bearing 81, first top block 91, fixed block 92, second top block 93, groove 94, guide strip 95. DETAILED DESCRIPTION

[0034] 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.

[0035] The present application provides a material disk tensioning mechanism and a film capacitor winding machine, which are 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.

[0036] See also Figure 1 and Figure 2 In one embodiment of the present application, the material disk tensioning mechanism includes: a bearing seat 1, fixed on a base plate 2; a rotating drum 3, passed through the bearing seat 1, and rotatably cooperated with the bearing seat 1 through a first bearing 11; the rotating drum 3 is provided with a plurality of strip holes 31 extending axially along the rotating drum 3; a core shaft 4, passed through the rotating drum 3, and a plurality of tensioning blocks 5 extending out of the corresponding strip holes 31 are installed thereon; and a core shaft moving mechanism 6, which is used to drive the core shaft 4 to move axially, thereby driving the tensioning blocks 5 to move in the corresponding strip holes 31.

[0037] In this embodiment, the core shaft 4 is driven to move axially by the core shaft moving mechanism 6, thereby driving the tension block 5 to move in the corresponding strip hole 31, so that the position of the material disk fixed on the tension block 5 can be conveniently adjusted.

[0038] In this embodiment, optionally, there can be two base plates 2, which respectively fix the two ends of the bearing seat 1; the rotating drum 3 can be rotatably matched with the bearing seat 1 through two first bearings 11; the length of the strip hole 31 is greater than the length of the tensioning block 5, so as to facilitate the adjustment of the position of the tensioning block 5.

[0039] See also Figure 2 Specifically, a first mounting block 7 is rotatably provided on one end of the core shaft 4 through a second bearing 71; the core shaft moving mechanism 6 includes: an adjusting screw 61, which is installed on the base plate 2, and its end is connected to the second mounting block 8 through a fisheye bearing 81; a connecting rod seat 62, which is fixed on the base plate 2, and a sliding sleeve 621 is rotatably provided on its end; a lever 63, the middle of which is inserted into the sliding sleeve 621, and its two ends are rotatably matched with the first mounting block 7 and the second mounting block 8 respectively.

[0040] In this embodiment, a screw nut 611 cooperating with the adjusting screw 61 is disposed on the base plate 2 .

[0041] In this embodiment, when the adjusting screw 61 rotates, it will move axially relative to the base plate 2, thereby driving the fisheye bearing 81 and the second mounting block 8 to move. At this time, the lever 63 rotates around the end of the connecting rod seat 62, thereby driving the first mounting block 7 to move, thereby driving the core shaft 4 to rotate.

[0042] Preferably, the fisheye bearing 81 and the two ends of the lever 63 are rotatably matched with the first mounting block 7 and the second mounting block 8 respectively, the middle part of the lever 63 is inserted into the sleeve 621, and the end of the connecting rod seat 62 is rotatably provided with the sleeve 621, etc., so that the lever 63 can rotate freely around the first mounting block 7 and can maintain the axial movement of the core shaft 4.

[0043] See also Figure 1 , Figure 3 and Figure 4 As a matching mode between the core shaft 4 and the tensioning block 5, the core shaft 4 is provided with a first top block 91, a fixed block 92 and a second top block 93 in sequence; the first top block 91 and the second top block 93 are matched with the core shaft 4 through two opposite threads respectively; the inner end of the tensioning block 5 is provided with a V-shaped surface 51, and the middle part of the V-shaped surface is provided with a receiving groove 52 for accommodating the fixed block 92, and the inclined surfaces on both sides of the V-shaped surface 51 are matched with the corresponding inclined surfaces on the first top block 91 and the second top block 93 respectively; when the core shaft 4 rotates, the first top block 91 and the second top block 93 move towards or in the opposite direction, so as to drive the tensioning block 5 to retract or extend through the inclined surfaces matching with the inclined surfaces on both sides of the V-shaped surface 51.

[0044] In this embodiment, the first top block 91 and the second top block 93 are both threadedly matched with the core shaft 4, and the spiral directions of the two threads are opposite. Therefore, when the core shaft 4 rotates, the first top block 91 and the second top block 93 can move towards or in opposite directions.

[0045] In this embodiment, the V-shaped surface includes two symmetrical inclined surfaces, which correspond to the inclined surfaces on the first top block 91 and the second top block 93 respectively; the first top block 91 and the second top block 93 are both provided with a plurality of inclined surfaces matching the inclined surfaces of the V-shaped surface along the circumferential direction, see Figure 4 , the number of the tensioning blocks 5 is 3, then the first top block 91 and the second top block 93 each have three inclined surfaces; the inclined surfaces on the first top block 91 and the second top block 93 can be sunken to form a groove 94 for accommodating the tensioning block 5, and a guide strip 95 with the same inclination angle as the inclined surface can be provided on the groove wall, and a strip groove 53 for accommodating the guide strip 95 can be provided on the side of the tensioning block 5; when the first top block 91 and the second top block 93 move in opposite directions, the tensioning block 5 will be pushed out of the strip hole 31; when the first top block 91 and the second top block 93 move toward each other, the tensioning block 5 will shrink into the strip hole 31.

[0046] In this embodiment, the cooperation between the fixing block 92 and the receiving groove 52 can limit the tensioning block 5 .

[0047] See also Figure 2 In order to improve the movement stability of the core shaft 4, a sleeve 41 is sleeved on the core shaft 4 and matches the inner wall of the drum 3.

[0048] In this embodiment, optionally, a rotating handle 42 is fixed to the end of the core shaft 4 .

[0049] Correspondingly, based on the above embodiment, this embodiment further provides a film capacitor winding machine, comprising: the material disc tensioning mechanism as described above; and a drum 3 driving mechanism for driving the drum 3 to rotate.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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 material disc tensioning mechanism, characterized in that: include: A bearing seat (1) is fixed on a base plate (2); The rotating drum (3) is inserted into the bearing seat (1) and is rotatably matched with the bearing seat (1) through the first bearing (11); the rotating drum (3) is provided with a plurality of strip-shaped holes (31) extending along the axial direction of the rotating drum (3); A core shaft (4) is inserted into the rotating drum (3) and is provided with a plurality of tensioning blocks (5) extending out of corresponding strip holes (31); and The core shaft moving mechanism (6) is used to drive the core shaft (4) to move axially, thereby driving the tensioning block (5) to move in the corresponding strip hole (31).

2. The material disk tensioning mechanism according to claim 1, characterized in that: A first mounting block (7) is rotatably provided on one end of the core shaft (4) via a second bearing (71); The spindle moving mechanism (6) comprises: An adjusting screw rod (61) is mounted on the base plate (2), and an end portion thereof is connected to a second mounting block (8) via a fisheye bearing (81); A connecting rod seat (62) is fixed on the base plate (2), and a sliding sleeve (621) is rotatably provided at the end thereof; The lever (63) has its middle portion inserted into the sliding sleeve (621) and its two ends respectively rotatably matched with the first mounting block (7) and the second mounting block (8).

3. The material disk tensioning mechanism according to claim 2, characterized in that: The base plate (2) is provided with a screw nut (611) that cooperates with the adjusting screw (61).

4. The material disk tensioning mechanism according to claim 1, characterized in that: The core shaft (4) is provided with a first top block (91), a fixed block (92) and a second top block (93) in sequence and at intervals; The first top block (91) and the second top block (93) are respectively matched with the core shaft (4) through two opposite threads; The inner end of the tension block (5) is provided with a V-shaped surface (51), and the middle of the V-shaped surface is provided with a receiving groove (52) for receiving the fixing block (92), and the inclined surfaces on both sides of the V-shaped surface (51) respectively cooperate with the corresponding inclined surfaces on the first top block (91) and the second top block (93); When the core shaft (4) rotates, the first top block (91) and the second top block (93) move towards or in opposite directions, so as to drive the tension block (5) to retract or extend through the inclined surface cooperating with the inclined surfaces on both sides of the V-shaped surface (51).

5. The material disk tensioning mechanism according to claim 1, characterized in that: The core shaft (4) is sleeved with a shaft sleeve (41) that matches the inner wall of the rotating drum (3).

6. The material disk tensioning mechanism according to claim 4, characterized in that: A rotating handle (42) is fixed to the end of the core shaft (4).

7. A film capacitor winding machine, characterized in that: include: The material disk tensioning mechanism according to any one of claims 1 to 6; as well as The rotating drum (3) driving mechanism is used to drive the rotating drum (3) to rotate.

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