CN212434485U

CN212434485U - Improved positioning mechanism for material disc of film capacitor winding machine

Info

Publication number: CN212434485U
Application number: CN202021213225.2U
Authority: CN
Inventors: 余晟武
Original assignee: Changzhou Savy Machine Co ltd
Current assignee: Changzhou Shengwei Electromechanical Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-01-29
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses an improved generation positioning mechanism of film capacitor winder material disc belongs to film capacitor winding equipment field. The utility model discloses an improved generation positioning mechanism of film capacitor winder material dish, fixed mounting is in the rear of clamping head, include the annular structure locating plate with the coaxial setting of clamping head, the internal diameter of locating plate is greater than 2 ~ 6mm of metal membrane circle external diameter of material dish, and the radial width of locating plate is 8 ~ 25 mm. The utility model has the advantages that on the basis of the positioning of the original positioning plate, the positioning plate is closer to the metal film ring of the material disc, the end surface of the positioning plate is in contact positioning with the end surface of the inner side of the metal film disc on the material disc, and the material disc is positioned better and more accurately; simultaneously, the contact area of locating plate and metallic film terminal surface has been reduced greatly, has avoided rocking around when arousing the material dish to unreel because metallic film dish terminal surface roughness is relatively poor, has guaranteed film capacitor's coiling quality and life, has advantages such as structural design is reasonable, the practicality is strong.

Description

Improved positioning mechanism for material disc of film capacitor winding machine

Technical Field

The utility model relates to a film capacitor coils technical field, and more specifically says, relates to an improved generation positioning mechanism of film capacitor winder material dish.

Background

The film capacitor is a capacitor having a structure in which a metal foil is used as an electrode, and the metal foil is laminated with a plastic film such as polyethylene, polypropylene, polystyrene, or polycarbonate from both ends thereof, and then wound into a cylindrical shape. And are also called a poly (ethyl ester) capacitor (also called a Mylar) capacitor, a polypropylene capacitor (also called a PP capacitor), a polystyrene capacitor (also called a PS capacitor), and a polycarbonate capacitor, respectively, depending on the type of the plastic film.

In the winding process of the film capacitor, the material disc and the capacitor core wound by the winding mechanism need to be controlled in the same plane so as to ensure that the end face of the capacitor core formed by winding is flat. Therefore, when the material discs are installed on the winding machine, the end face positions of the material discs need to be positioned so as to ensure that the end faces of the material discs for discharging the materials are flush with the end faces of the wound capacitor cores. In order to realize accurate positioning of a material disc, the applicant successively proposed two patent applications of patent number ZL201822230597.5, patent name "a material disc clamping and positioning mechanism of a film capacitor winding machine" and patent number ZL201920454138.7, patent name "a material disc positioning plate mechanism of a film capacitor winding machine", the former adopts a plurality of positioning brackets matched with adjustable positioning blocks to realize end face positioning of the material disc in the circumferential direction of the material disc, and belongs to a multipoint positioning mechanism, the positioning precision of the material disc mainly depends on the adjustment precision of the adjustable positioning blocks, and the positioning precision of multipoint positioning is relatively poor; the latter adopts an annular locating plate to realize the terminal surface location of material dish, belongs to a face positioning mechanism, compares in multiple spot positioning mechanism, and the locating plate front and back is adjusted more nimble convenient, and the location is more accurate reliable relatively. As shown in fig. 1 and 2, the material disc is positioned by the circumferential positioning plate, the chuck 2 of the material disc 5 is mounted on the base plate 1, the positioning plate 4 is fixedly mounted on the base plate 1 through the positioning bracket 3, when the material disc is positioned, the position of the positioning plate 4 is adjusted, the material disc 5 is loaded into the chuck 2, and the end surface of the material disc 5 abuts against the positioning plate 4, so that the positioning and the clamping of the material disc 5 can be completed. However, since the material disk includes the metal film ring and the metal film disk, the metal film ring is located at the center to support the metal film disk, and the metal film disk is wound around the outside of the metal film ring. The two end faces of the metal film disk are not in an ideal plane state in practice, the two end faces also have a certain concave-convex state in the process of coiling the metal film disk into the disk, the concave-convex of the outward end face of the metal film disk is more obvious, therefore, a large error exists when the positioning plate 4 with a large disc surface and the end surface of the material disc 5 are used for positioning, when the material disc is clamped on the clamping head 2 and positioned with the positioning plate 4, the inner side end face of the metal film disc can not be completely and accurately attached and contacted with the outer side end face of the positioning plate, this causes the material tray to shake back and forth in the axial direction of the rotating shaft during the high-speed operation of the cartridge 2, as shown in the state of FIG. 2, the material disc is in a state of rotating, unreeling and shaking front and back, so that the end face of the coiled film capacitor is uneven, and the quality and the service life of the film capacitor are greatly influenced.

Disclosure of Invention

1. Technical problem to be solved by the utility model

The utility model aims to overcome current film capacitor winder material disc and have the relatively poor scheduling of clamping positioning accuracy not enough, provide an improved generation positioning mechanism of film capacitor winder material disc, adopt the technical scheme of the utility model, on the basis of original locating plate location, design the locating plate into: the inner diameter of the positioning plate is 2-6 mm larger than the outer diameter of the metal film ring of the material disc, the radial width of the positioning plate is 8-25 mm, so that the positioning plate is closer to the metal film ring of the material disc, the end face of the positioning plate is in contact positioning with the end face, close to the inner side, of the metal film disc on the material disc, and the material disc is positioned more accurately; simultaneously, the contact area of locating plate and metal membrane dish terminal surface has been reduced greatly, has avoided rocking around when the material dish unreels because the poor and arouse of metal membrane dish terminal surface roughness, has guaranteed film capacitor's coiling quality and life, and this film capacitor winder material dish improved generation positioning mechanism structural design is simple reasonable, and the feasible height is implemented in the manufacturing, and the practicality is strong.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses an improved generation positioning mechanism of film capacitor winder material dish, fixed mounting is in the rear of clamping head, include the annular structure locating plate with the coaxial setting of clamping head, the internal diameter of locating plate be greater than 2 ~ 6mm of metal membrane circle external diameter of material dish, the radial width of locating plate be 8 ~ 25 mm.

Furthermore, the inner diameter of the positioning plate is 2-4 mm larger than the outer diameter of the metal film ring of the material disc, and the radial width of the positioning plate is 12-23 mm.

Furthermore, the positioning plate is arranged on the outer sleeve behind the clamping head through a positioning bracket.

Furthermore, the locating plate on be equipped with along the waist type mounting hole of hoop setting, waist type mounting hole be counter bore structure near locating plate and material dish terminal surface matched with one side, the locating plate on waist type mounting hole pass through fixed screw and locating support fixed connection.

Furthermore, the positioning plate is also provided with a notch.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:

(1) the utility model discloses an improved generation positioning mechanism of film capacitor winder material disc, it is on the basis of original locating plate location, designs the locating plate into: the inner diameter of the positioning plate is 2-6 mm larger than the outer diameter of the metal film ring of the material disc, the radial width of the positioning plate is 8-25 mm, so that the positioning plate is closer to the metal film ring of the material disc, the end face of the positioning plate is in contact with the end face of the inner side of the metal film disc on the material disc for positioning, and the material disc is positioned more accurately; meanwhile, the contact area between the positioning plate and the end face of the metal film disc is greatly reduced, the phenomenon that the material disc shakes forwards and backwards when unreeling due to poor evenness of the end face of the metal film disc is avoided, the reeling quality and the service life of the film capacitor are guaranteed, and the improved positioning mechanism of the material disc of the film capacitor reeling machine is simple and reasonable in structural design, high in manufacturing and implementation feasibility and strong in practicability;

(2) the utility model discloses an improved positioning mechanism of a material disc of a film capacitor winding machine, a positioning plate is arranged on an outer sleeve behind a clamping head through a positioning bracket, so that the positioning plate is convenient to install and replace; meanwhile, the positioning plate is provided with a waist-shaped mounting hole arranged along the circumferential direction, one side face, close to the positioning plate and matched with the end face of the material disc, of the waist-shaped mounting hole is of a counter bore structure, the waist-shaped mounting hole in the positioning plate is fixedly connected with the positioning support through a fixing screw, and the waist-shaped mounting hole is used for facilitating flexible adjustment of the mounting position of the positioning plate.

Drawings

FIG. 1 is a schematic view of a positioning state of a material tray positioning mechanism of a conventional film capacitor winding machine;

FIG. 2 is a schematic diagram of a material tray positioning mechanism of a conventional film capacitor winding machine in a working shaking state;

fig. 3 is a schematic perspective view of an improved positioning mechanism for a material tray of a film capacitor winding machine according to the present invention;

fig. 4 is a schematic side view of the improved positioning mechanism of the material tray of the film capacitor winding machine of the present invention;

fig. 5 is a schematic view of a positioning state of the improved positioning mechanism of the material tray of the film capacitor winding machine of the present invention.

The reference numerals in the schematic drawings illustrate:

1. a substrate; 2. assembling a chuck; 3. positioning the bracket; 3-1, fixing screws; 4. positioning a plate; 4-1, waist-shaped mounting holes; 4-2, gap; 5. a material tray.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Examples

As shown in fig. 3, 4 and 5, the improved positioning mechanism of the material disc of the film capacitor winding machine of the embodiment is fixedly installed behind the clamping head 2, and includes an annular structure positioning plate 4 coaxially arranged with the clamping head 2, and the clamping head 2 is arranged on the substrate 1, and is used for clamping the material disc 5 and driving the material disc to rotate and unreel through a driving mechanism arranged at the rear portion of the substrate 1. The front end face of the positioning plate 4 is a positioning face matched with the material disc 5, the positioning face is perpendicular to the axis of the clamping head 2, when the material disc 5 is installed, the material disc 5 is sleeved into the clamping head 2, one side end face of the material disc 5 is in contact with the positioning face of the positioning plate 4, and the position of the positioning face of the positioning plate 4 is adjusted in advance, so that the installation position of the material disc 5 on the clamping head 2 can be determined by using the positioning plate 4. Different from the existing design, in this embodiment, the contact location position of locating plate 4 and material dish 5 is close to more in the membrane dish inboard of material dish 5, utilize the inboard more smooth terminal surface of membrane dish to fix a position, positioning accuracy is higher, specifically, the internal diameter of locating plate 4 is greater than 2 ~ 6mm of the metal membrane circle external diameter of material dish 5, make locating plate 4 and material dish 5's metal membrane circle contactless, the radial width of locating plate 4 is 8 ~ 25mm, make locating plate 4 and material dish 5's the inboard location area of membrane dish reduce, effectively avoid material dish 5 to rotate the problem of rocking. Further preferably, the inner diameter of the positioning plate 4 is 2-4 mm larger than the outer diameter of the metal film ring of the material disc 5, and the radial width of the positioning plate 4 is 12-23 mm. The "radial width" of the positioning plate 4 refers to one half of the difference between the inner diameter and the outer diameter of the positioning plate 4 with a ring structure.

As shown in fig. 3, 4 and 5, in the present embodiment, the positioning plate 4 is mounted on the outer collar behind the clamping head 2 through the positioning bracket 3. The preferred setting of locating support 3 is three, and three locating support 3 utilizes locating support 3 fixed location board 4 at the circumference evenly distributed of clamping head 2, and the installation is simpler with the dismantlement, and the convenience is changed locating board 4. Preferably, waist-shaped mounting holes 4-1 are circumferentially arranged on the positioning plate 4, one side, close to the end face of the positioning plate 4, of each waist-shaped mounting hole 4-1 matched with the end face of the material disc 5 is of a counter bore structure, the waist-shaped mounting holes 4-1 in the positioning plate 4 are fixedly connected with the positioning support 3 through fixing screws 3-1, the waist-shaped mounting holes 4-1 are used for facilitating flexible adjustment of the mounting position of the positioning plate 4, and the waist-shaped mounting holes 4-1 are designed to be of counter bore structures, so that the fixing screws 3-1 are prevented from protruding out of the positioning face of the positioning plate 4. The fixing screw 3-1 can adopt the structure form in patent ZL201920454138.7, so as to facilitate the front and back adjustment of the positioning plate 4 and realize the adjustment of the positioning position of the material tray 5.

As shown in fig. 3 and 4, in order to facilitate the installation of the material disc 5 close to the wheel or the pinch roller, a notch 4-2 is further formed in the positioning plate 4, so that the positioning plate 4 is of an annular C-shaped structure, and the interference generated in the installation of the close wheel or the pinch roller is avoided.

As for the specific structure of the clamping head 2, the structure and principle of the clamping head are the same as those of the prior art, and the clamping structure and principle can be referred to as "a material disc clamping and positioning mechanism of a film capacitor winding machine" disclosed in patent No. ZL201822230597.5, and detailed description thereof is omitted.

The utility model discloses an improved generation positioning mechanism of film capacitor winder material disc, it is on the basis of original locating plate location, designs the locating plate into: the inner diameter of the positioning plate is 2-6 mm larger than the outer diameter of the metal film ring of the material disc, the radial width of the positioning plate is 8-25 mm, so that the positioning plate is closer to the metal film ring of the material disc, the end face of the positioning plate is in contact positioning with the end face, close to the inner side, of the metal film disc on the material disc, and the material disc is positioned more accurately; simultaneously, the contact area of locating plate and metal membrane dish terminal surface has been reduced greatly, has avoided rocking around when the material dish unreels because the poor and arouse of metal membrane dish terminal surface roughness, has guaranteed film capacitor's coiling quality and life, and this film capacitor winder material dish improved generation positioning mechanism structural design is simple reasonable, and the feasible height is implemented in the manufacturing, and the practicality is strong.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.

Claims

1. The utility model provides an improved generation positioning mechanism of film capacitor winder material dish, fixed mounting in the rear of dress chuck (2), include with annular structure locating plate (4) of the coaxial setting of dress chuck (2), its characterized in that: the inner diameter of the positioning plate (4) is larger than the outer diameter of a metal film ring of the material disc (5) by 2-6 mm, and the radial width of the positioning plate (4) is 8-25 mm.

2. The improved positioning mechanism for material disc of film capacitor winding machine according to claim 1, characterized in that: the inner diameter of the positioning plate (4) is larger than the outer diameter of a metal film ring of the material disc (5) by 2-4 mm, and the radial width of the positioning plate (4) is 12-23 mm.

3. The improved positioning mechanism for material disc of film capacitor winding machine according to claim 1 or 2, characterized in that: the positioning plate (4) is arranged on an outer shaft sleeve behind the clamping head (2) through a positioning bracket (3).

4. The improved positioning mechanism for material disc of film capacitor winding machine according to claim 3, characterized in that: the positioning plate (4) is provided with a waist-shaped mounting hole (4-1) arranged along the circumferential direction, one side surface of the waist-shaped mounting hole (4-1) close to the positioning plate (4) and matched with the end surface of the material disc (5) is of a counter bore structure, and the waist-shaped mounting hole (4-1) on the positioning plate (4) is fixedly connected with the positioning support (3) through a fixing screw (3-1).

5. The improved positioning mechanism for material disc of film capacitor winding machine according to claim 3, characterized in that: and a notch (4-2) is also arranged on the positioning plate (4).