CN220420438U

CN220420438U - Foil winding device for low-voltage coil of air-type transformer

Info

Publication number: CN220420438U
Application number: CN202320130959.1U
Authority: CN
Inventors: 袁涛; 李华; 方利强
Original assignee: Qiannan Wangjiang Transformer Co ltd
Current assignee: Qiannan Wangjiang Transformer Co ltd
Priority date: 2023-01-17
Filing date: 2023-01-17
Publication date: 2024-01-30
Anticipated expiration: 2033-01-17

Abstract

The utility model relates to the technical field of foil coils, and particularly discloses a foil winding device for a low-voltage coil of an air-type transformer. The device comprises a supporting unit and a fixing unit, wherein the supporting unit comprises a supporting rod and a die, the supporting rod penetrates through the die, and the die is in sliding fit with the supporting rod; the fixing unit comprises a fixing seat and a push rod, the fixing seat is positioned at the end part of the die and is arranged on the supporting rod, the push rod is detachably connected with the fixing seat and can move along the axial direction of the supporting rod, and the push rod abuts against the die. The low-voltage coil foil winding device of the air-type transformer can better support the copper foil or the aluminum foil by adopting the die without gaps, and the die can be replaced more conveniently.

Description

Foil winding device for low-voltage coil of air-type transformer

Technical Field

The utility model relates to the technical field of foil coils, in particular to a foil winding device for a low-voltage coil of an air-type transformer.

Background

The foil coil made of copper foil or aluminum foil is arranged in the transformer, and is different from a common coil, and the foil coil in the transformer is formed by winding a sheet copper foil or aluminum foil. At present, a foil winding machine is generally adopted for winding, and in order to enable the shape and the size of the foil coil to meet the design requirement of a transformer, a corresponding die is required to be adopted during winding, and copper foil or aluminum foil is wound on the die to form foil coils with different shapes and inner diameters.

A foil coil winding device and method as disclosed in CN201610367432.5, comprising a hollow tube; the first arc plates are opposite to each other and symmetrically arranged on the outer side of the hollow pipe along the length direction perpendicular to the hollow pipe, the first arc plates are connected with the hollow pipe through first adjusting bolts, and the distance between the first arc plates and the hollow pipe can be adjusted through the first adjusting bolts; the arc plates II are opposite to each other and symmetrically arranged on the outer side of the hollow tube along the length direction perpendicular to the hollow tube and are perpendicular to the arc plates I, the arc plates II are connected with the hollow tube through adjusting bolts II, and the distance between the arc plates II and the hollow tube can be adjusted through the adjusting bolts II. The first arc plate and the second arc plate are used for fixing the starting foil of the foil coil and providing support for winding the foil coil. Which changes the shape and width of the mold by adjusting the arc plate for winding foil coils of different shapes and inner diameters.

However, when the winding device is in actual use, after the arc plates move to one side far away from the hollow pipe, gaps exist between the arc plates positioned on the adjacent side surfaces of the hollow pipe, so that rectangular supporting surfaces are difficult to form among all the arc plates, and the shape of the inner wall of the foil coil is difficult to meet the requirements. The traditional foil winding machine is directly arranged on the foil winding machine, and the disassembly and the installation of the die are complex.

Disclosure of Invention

The utility model aims to provide a low-voltage coil foil winding device of an air-type transformer, which is used for better supporting copper foil or aluminum foil by adopting a die without gaps and is more convenient for replacing the die.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the low-voltage coil foil winding device of the air-type transformer comprises a supporting unit and a fixing unit, wherein the supporting unit comprises a supporting rod and a mould, the supporting rod penetrates through the mould, and the mould is in sliding fit with the supporting rod; the fixing unit comprises a fixing seat and a push rod, the fixing seat is positioned at the end part of the die and is arranged on the supporting rod, the push rod is detachably connected with the fixing seat and can move along the axial direction of the supporting rod, and the push rod abuts against the die.

The beneficial effect of this scheme is:

1. the mould in this scheme is installed on the bracing piece, and the bracing piece is installed on the foil winding machine, compares on the foil winding machine with traditional foil winding machine in mould direct mount, and the mould in this scheme can the quick replacement go up the mould of another model after the roll-off from the bracing piece to can be used for the shaping of the foil coil of another model, the change and the simple to operate of mould. And because the shape of the die does not need to be adjusted, the die has higher strength, can be used for winding the foil coil with higher weight, and can not generate gaps on the die, so the die in the scheme can better support the foil coil.

2. The fixing base in this scheme can fix a position the mould, and push rod and mould offset when the location, so when the width phase difference of mould and preceding mould of changing is less, need not the position of adjustment fixing base, only along the axial adjustment push rod of bracing piece can make push rod and the tip of mould offset, compress tightly the mould, and the mould need not other fixed knot structure this moment, also can not shift at the coiling in-process, so the installation and the change of mould are convenient.

Further, the fixing unit also comprises a pressing plate, and a limiting seat is arranged at the end part of the die; the pressing plate is opposite to the die and a limiting gap is arranged between the pressing plate and the die, and the end part of the pressing plate is arranged on the limiting seat.

The beneficial effect of this scheme is: the limiting seat can limit the copper foil or the aluminum foil, so that the copper foil or the aluminum foil is prevented from being inclined in the winding process. In the foil coil, an insulating layer is required to be arranged between adjacent copper foils or aluminum foils for separation, the copper foils are taken as an example, when the copper foils are wound, the copper foils are required to be pasted with the insulating layer before being wound on a die, then the copper foils are wound on the die at the same time, no fixed structure exists between the pasted copper foils and the insulating layer, and the copper foils and the insulating layer which are pasted are respectively conveyed to a winding device by adopting two conveying structures before being wound, so that the pasting copper foils and the insulating layer are difficult to be guaranteed to be completely smooth and pasted.

Further, be equipped with the spring between clamp plate and the spacing seat, the winding has the hold-down strip on the spacing seat, and the hold-down strip presses on the clamp plate and is used for pressing the clamp plate to the one side that is close to spacing seat.

The beneficial effect of this scheme is: when coiling the great foil coil of diameter, loosen and compress tightly the area after, the spring can make the clamp plate to keeping away from the one side of spacing seat and remove, can increase the width in spacing clearance, avoid the clamp plate to directly press on foil coil and lead to coiling unable to go on.

Further, the lateral surface of the pressing plate facing the limiting seat is fixedly provided with a guide post, the limiting seat is provided with a guide groove, and the guide post and the spring are both positioned in the guide groove.

The beneficial effect of this scheme is: the guide post limits the pressing plate, so that the pressing plate is prevented from being skewed.

Further, the lateral direction of clamp plate is equipped with the limiting plate, and the limiting plate is installed on spacing seat.

The beneficial effect of this scheme is: limiting plate in this scheme also can carry out spacingly to the clamp plate, improves the spacing effect to the clamp plate, further avoids the clamp plate crooked.

Further, the limiting plate comprises a mounting part and a limiting part, and the mounting part is mounted on the limiting seat; the limiting part is opposite to the pressing plate, a strip-shaped groove is formed in the limiting part, and the pressing belt penetrates through the strip-shaped groove.

The beneficial effect of this scheme is: the strip-shaped groove can limit the compression belt, so that the compression belt is prevented from being inclined and the pressing plate cannot be compressed.

Further, the mounting portion extends along the radial direction of the support rod, and the limiting portion extends along the axial direction of the support rod.

The beneficial effect of this scheme is: the installation department in this scheme pastes mutually with the tip of spacing seat, when the installation limiting plate, and the installation department can be spacing to spacing portion, avoids spacing portion to warp along the axial of bracing piece and leads to bar groove and compresses tightly the area dislocation.

Further, the fixing base comprises a first fixing block and a second fixing block, the cross sections of the first fixing block and the second fixing block are U-shaped, openings of the first fixing block and the second fixing block face the supporting base, and the first fixing block and the second fixing block are detachably connected.

The beneficial effect of this scheme is: when the position of the fixing seat needs to be adjusted or the fixing seat is detached, the first fixing block and the second fixing block are detached, and the first fixing block and the second fixing block can be detached from the supporting rod without detaching the die, so that the fixing seat is more convenient to detach, install and adjust.

Further, the mould includes the first mould body and the second mould body, and the cross section of the first mould body and the second mould body is the U-shaped, and spacing seat cover is established at the tip of the first mould body and the second mould body and can dismantle with the first mould body and the second mould body and be connected.

The beneficial effect of this scheme is: the spacing seat in this scheme can carry out spacingly to first mould body and second mould body, makes first mould body and second mould body can constitute the mould and can not become flexible. When the die needs to be replaced, the die can be detached from the support rod by detaching the limiting seat under the condition that the support rod does not need to be detached, so that the die is more convenient and quicker to detach and install.

Drawings

FIG. 1 is a perspective view of an embodiment of the present utility model;

FIG. 2 is a perspective view of the platen of FIG. 1;

FIG. 3 is a perspective view of the stop plate of FIG. 1;

fig. 4 is a schematic view illustrating installation of a compression belt according to an embodiment of the present utility model.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals in the drawings of the specification include: the device comprises a supporting rod 1, a fixed seat 2, a first fixed block 21, a second fixed block 22, a limiting seat 3, a die 4, an extension part 41, a pressing plate 5, a guide post 51, a limiting plate 6, a limiting part 61, a mounting part 62, a push rod 7 and a pressing belt 8.

Examples

The low-voltage coil foil winding device of the air-type transformer comprises a bracket, a supporting unit and two fixing units, wherein the supporting unit comprises a supporting rod 1 and a die 4, the cross section of the supporting rod 1 in the embodiment is rectangular, two ends of the supporting rod 1 are welded with rotating shafts, and the rotating shafts are mounted on the bracket through bearings.

The die 4 in this embodiment includes a first die body and a second die body, the cross sections of the first die body and the second die body are both U-shaped, and the openings of the first die body and the second die body are both towards the support rod 1 and are both mounted on the support rod 1, so that the die 4 composed of the first die body and the second die body is sleeved on the support rod 1.

The two ends of the die 4 are provided with annular limiting seats 3, and specifically, the limiting seats 3 are sleeved at the ends of the first die body and the second die body and are connected with the first die body and the second die body through screws to limit the first die body and the second die body. In this embodiment, the two ends of the first die body and the second die body are integrally formed with the extending portions 41 for installing the limiting bases 3, and in the dies 4 of different models, the lengths and the widths of the extending portions 41 are the same, so that the same limiting base 3 can be sleeved on the dies 4 of different models.

The width of the limiting seat 3 is larger than that of the die 4, and the end part of the limiting seat 3, facing the die 4, can limit the wound copper foil or aluminum foil, so that the copper foil or aluminum foil is prevented from being skewed. In practical implementation, one end of the supporting rod 1 is connected with a motor to drive the supporting rod 1 to rotate, and the mold 4 is driven to rotate through the supporting rod 1.

The two fixing units are respectively located at two sides of the die 4, each fixing unit comprises a fixing seat 2, a pressing plate 5 and two push rods 7, the pressing plate 5 is arranged at the lateral direction of the die 4 and is parallel to the die 4, the pressing plate 5 in the embodiment is arranged above the die 4, a limiting gap is formed between the pressing plate 5 and the top of the die 4, and the distance between the bottom of the pressing plate 5 and the top of the die 4 is greater than or equal to the thickness of a coil wound on the die, so that the pressing plate 5 in the embodiment cannot block the coil. The both ends of clamp plate 5 paste mutually with the top of two spacing seats 3 respectively, the top of spacing seat 3 is equipped with the guide way that the opening was up, the bottom integrated into one piece of clamp plate 5 has the guide post 51 relative with the guide way, guide post 51 is located the guide way and with guide way clearance fit, the cover is equipped with the spring on the guide post 51, and the both ends of spring offset with guide way and clamp plate 5 respectively, the spring in this embodiment is in compressed state, combine the figure 4 to show, the winding has the hold-down strip 8 on the spacing seat 3, the top of hold-down strip 8 is pressed on clamp plate 5, press clamp plate 5 downwards on spacing seat 3. Still be equipped with limiting plate 6 on two spacing seats 3, limiting plate 6 in this embodiment includes integrated into one piece's installation department 62 and spacing portion 61, take left limiting plate 6 as the example, installation department 62 pastes with the left side wall of left spacing seat 3 mutually, and install on spacing seat 3 through the bolt, spacing portion 61 is located the top of spacing seat 3 and is located the rear side of clamp plate 5, be equipped with the bar slot on the spacing portion 61, compress tightly area 8 and pass the bar slot, so can carry out spacingly to compressing tightly area 8 through the bar slot, avoid compressing tightly 8 axial offset along bracing piece 1.

As shown in fig. 1, the fixing base 2 is located at one side of the limiting base 3 away from the mold 4, the fixing base 2 in this embodiment includes a first fixing block 21 and a second fixing block 22, taking the left fixing base 2 as an example, the cross sections of the first fixing block 21 and the second fixing block 22 are all U-shaped, and the openings all face the support rod 1, the upper ends and the lower ends of the first fixing block 21 and the second fixing block 22 are all connected by screws, the fixing base 2 and the second fixing block 22 can be clamped on the support rod 1 by screwing the screws and cannot slide along the axial direction of the support rod 1, and at this time, the fixing base 2 is fixed on the support rod 1.

Two push rods 7 are respectively arranged on the first fixed block 21 and the second fixed block 22, taking the first fixed block 21 as an example, the push rods 7 transversely penetrate through the first fixed block 21 and are in threaded fit with the first fixed block 21, and the right ends of the push rods 7 are propped against the left end of the die 4 to position the die 4.

In practical implementation, the right end of the die 4 may also abut against the bracket or a limiting block is arranged at the right end of the supporting rod 1, so that the right end of the die 4 abuts against the limiting block, at this time, only one fixing unit may be arranged, and the die 4 may be pushed rightward by the fixing unit at the left side, or the die 4 may be limited.

The specific implementation process is as follows:

taking a wound copper foil as an example, the structure for conveying the copper foil and the insulating layer is located at the rear side of the die 4, the copper foil and the insulating layer are attached to each other before winding and pulled to the front side of the pressing plate 5 from the upper side of the pressing plate 5, then the copper foil and the insulating layer are downwards bent, and then fixed at the rear side of the die 4 after passing through the limiting gap, namely, the copper foil to be wound and the insulating layer are bent in a V shape under the limiting action of the pressing plate 5, and during winding, the supporting rod 1 drives the die 4 to rotate anticlockwise, and the pressing plate 5 abuts against the copper foil and the insulating layer at the moment, so that the copper foil is flattened with the insulating layer, the copper foil is abutted against the insulating layer during winding, and the winding effect is improved.

When the foil coils with different widths are required to be wound, the limiting seat 3 is detached from the first die body and the second die body, the limiting seat slides to one side far away from the first die body and the second die body, the first die body and the second die body are detached from the supporting rod 1, and after the new first die body and the new second die body are installed, the limiting seat 3 is reinstalled to limit the first die body and the second die body.

Then, the push rod 7 is adjusted according to the width of the die 4, so that the push rod 7 abuts against the end of the die 4, and the die 4 is positioned. When the axial length of the newly installed mold 4 is too small or too large, so that the push rod 7 cannot be abutted against the newly installed mold 4, the screws for fixing the first and second fixing blocks 21 and 22 are loosened, so that the first and second fixing blocks 21 and 22 are not clamped on the support rod 1 any more, then the first and second fixing blocks 21 and 22 are slid in the axial direction until the push rod 7 can be abutted against the mold 4, and finally the screws are re-tightened, so that the first and second fixing blocks 21 and 22 are clamped on the support rod 1 again.

The foregoing is merely exemplary of the present utility model, and specific technical solutions and/or features that are well known in the art have not been described in detail herein. It should be noted that, for those skilled in the art, several variations and modifications can be made without departing from the technical solution of the present utility model, and these should also be regarded as the protection scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the practical applicability of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The low-voltage coil foil winding device of the air-type transformer is characterized in that: the device comprises a supporting unit and a fixing unit, wherein the supporting unit comprises a supporting rod and a die, the supporting rod penetrates through the die, and the die is in sliding fit with the supporting rod; the fixing unit comprises a fixing seat and a push rod, the fixing seat is positioned at the end part of the die and is arranged on the supporting rod, the push rod is detachably connected with the fixing seat and can move along the axial direction of the supporting rod, and the push rod abuts against the die.

2. The air-type transformer low-voltage coil foil winding device according to claim 1, wherein: the fixing unit further comprises a pressing plate, and a limiting seat is arranged at the end part of the die; the pressing plate is opposite to the die and a limiting gap is formed between the pressing plate and the die, and the end part of the pressing plate is arranged on the limiting seat.

3. The air-type transformer low-voltage coil foil winding device according to claim 2, wherein: a spring is arranged between the pressing plate and the limiting seat, a pressing belt is wound on the limiting seat, and the pressing belt is pressed on the pressing plate and used for pressing the pressing plate to one side close to the limiting seat.

4. A low voltage coil foil winding apparatus for a gas transformer as claimed in claim 3, wherein: the clamp plate is fixed with the guide post towards the side of spacing seat, be equipped with the guide way on the spacing seat, guide post and spring all are located the guide way.

5. The air-type transformer low-voltage coil foil winding device according to claim 4, wherein: the lateral direction of clamp plate is equipped with the limiting plate, the limiting plate is installed on spacing seat.

6. The air-type transformer low-voltage coil foil winding device according to claim 5, wherein: the limiting plate comprises a mounting part and a limiting part, and the mounting part is mounted on the limiting seat; the limiting part is opposite to the pressing plate, a strip-shaped groove is formed in the limiting part, and the pressing belt penetrates through the strip-shaped groove.

7. The air-type transformer low-voltage coil foil winding device according to claim 6, wherein: the mounting part extends along the radial direction of the supporting rod, and the limiting part extends along the axial direction of the supporting rod.

8. The air-type transformer low-voltage coil foil winding device according to claim 1, wherein: the fixing base includes first fixed block and second fixed block, the cross section of first fixed block and second fixed block is the U-shaped, and the opening of first fixed block and second fixed block all is towards the supporting seat, and first fixed block and second fixed block can dismantle and be connected.

9. The air-type transformer low-voltage coil foil winding device according to claim 2, wherein: the die comprises a first die body and a second die body, the cross sections of the first die body and the second die body are U-shaped, and the limiting seat is sleeved at the end parts of the first die body and the second die body and is detachably connected with the first die body and the second die body.