KR102544947B1 - Apparatus For Manufacturing Iron Cores Of Transformer Having Function For Separating - Google Patents

Abstract

The present invention relates to an apparatus for manufacturing iron cores of a transformer with a sorting function for cutting sheet-shaped transformer iron cores used in transformers into two types and then sorting and stacking the same. The composition thereof includes: a base frame; a coil feeder installed on one side of the base frame; a coil transfer table that guides the transfer direction of the coil; a coil transfer supply unit that supplies the coil to the coil transfer table; a cutting unit installed on the coil transfer table of the base frame to produce two types of transformer iron cores by cutting the coil being transferred into two types; and a classification unit that sorts the two types of transformer iron cores alternately discharged from the cutting unit according to type. The classification unit includes: a roll axis extending long in the direction in which the transformer iron core is discharged; a plurality of magnet bodies that are fixedly installed along the longitudinal direction of the roll axis and hold the transformer iron core sliding on the support rail using magnetic force so that the same is separated to the outside; and a transformer iron core separation means for separating, from the magnetic force, the transformer iron core separated to the outside of the support rail by the magnet bodies and dropping the same downward. A very simple configuration makes it possible to quickly and accurately sort thin transformer iron cores.

Description

Apparatus For Manufacturing Iron Cores Of Transformer Having Function For Separating}

The present invention relates to a transformer core manufacturing apparatus, and more particularly, to a transformer core manufacturing apparatus having a sorting function for cutting a sheet-shaped transformer core used in a transformer into two types and then sorting and loading them separately. will be.

A transformer is a device that changes alternating voltage and current values by using electromagnetic induction and is widely used in electronic products. A transformer is based on a structure in which a coil, which is an electrical conductor, is wound around a magnetic iron core. Among the coils, a primary coil is connected to an input circuit whose voltage is to be changed, and a secondary coil is connected to an output circuit in which the changed voltage is used. Here, magnetic energy is used to connect the electrical energy of the primary coil and the secondary coil to each other.

On the other hand, there is a concept of loss in a transformer, and this loss is divided into no-load loss and load loss. No-load loss is the power loss that always occurs constantly regardless of whether the transformer is operating and is consumed in the iron core. As a method of reducing no-load loss, a grain-oriented electrical steel sheet having excellent iron loss is used as an iron core.

The constant size of the stacked cores contributes to reducing the no-load loss. Therefore, the precise fabrication of the iron core is a very important factor in determining the performance and efficiency of the transformer. In addition, the iron core is designed in a variety of shapes depending on the capacity or characteristics of the transformer. Here, the shape is a concept including the width and length of the iron core, the shape of the perforation, and the diameter of the hole to be perforated.

Since iron loss increases as the thickness of grain-oriented electrical steel sheet becomes thicker, a material having a thickness as thin as possible can be selected, but the most commonly used thickness is about 0.2 mm. In addition, in order to reduce the iron loss of the transformer, the iron loss is reduced by increasing the amount of electrical steel used in the iron core and lowering the magnetic flux density. For this reason, iron cores used in transformers are used a lot, must be precisely manufactured, and demand arises in various forms.

In general, a transformer iron core is manufactured by hanging an iron core wound in a coil form in a single line on a manufacturing device and then perforating and cutting to a certain length.

A conventional transformer iron core manufacturing apparatus includes a base frame providing a working plane; A coil feeder installed on one side of the base frame and holding a coil for iron core; A coil transfer table installed on the upper surface of the base frame, supporting the lower surface of the coil and guiding the transfer direction of the coil; a coil transfer supply unit supplying coils to the coil transfer table; a cutting unit installed above the coil transfer table of the base frame and cutting the coil being transferred; and an iron core collection unit installed on the other side of the base frame.

The cutting part cuts the coil in various shapes such as a right angle, an oblique (/) direction, or a triangular (>) shape. The structure of the cutting part for this cutting is as follows.

In addition, there are cases in which different types of iron cores are manufactured by alternating in one transformer core manufacturing device. However, since different types of iron cores are discharged from one equipment, it is inconvenient to separately classify them. Conventionally, workers sorted them manually, which is both dangerous and time-consuming.

Republic of Korea Patent Registration No. 10-1967877 Republic of Korea Patent Registration No. 10-1747937 Republic of Korea Utility Model Registration No. 20-0488717

An object of the present invention for the above problems is to provide a transformer core manufacturing device having a function of automatically classifying transformer cores by type in a transformer core manufacturing device that simultaneously produces two types of transformer cores in one device. is in doing More specifically, it is an object of the present invention to provide a transformer core manufacturing apparatus that safely and quickly sorts thin transformer cores and prevents errors in sorting.

Furthermore, an object of the present invention is to provide a transformer core manufacturing device that allows workers to easily work by directly loading the classified transformer cores into a movable loading device.

The above object, the base frame to provide a working plane to the height of the worker's waist; A coil feeder installed on one side of the base frame; a coil transfer table installed on the upper surface of the base frame, supporting the lower surface of the coil and guiding the transfer direction of the coil; a coil transfer supply unit supplying the coil to the coil transfer table; a cutting unit installed on the upper portion of the coil transfer table of the base frame and cutting the coil being transported into two types to produce two types of transformer iron cores; A classification unit for classifying the two types of transformer iron cores discharged from the cutting unit according to type; The sorting unit may include a roll shaft extending in a direction in which the iron core of the transformer is discharged; a plurality of magnet bodies which are fixedly installed along the longitudinal direction of the roll shaft and hold the transformer iron core discharged by magnetic force so as to be separated outward; It is achieved by a transformer core manufacturing apparatus having a sorting function, characterized in that it includes; a transformer core separating means for separating the transformer core separated from the support rail by the magnet body from the magnetic force and dropping it downward. do.

According to another embodiment of the present invention, the roll shaft is composed of first and second roll shafts arranged in parallel; Support rails for supporting the iron core of the transformer may be installed between the first and second roll shafts in parallel with the first and second roll shafts.

According to another feature of the present invention, the magnet body is inserted and fixed into a hole provided perpendicular to the surface of the roll shaft, and is installed in two rows along the circumferential direction of the roll shaft to have an angle between 110 and 130° in an arc angle. it may be

According to another feature of the present invention, the transformer iron core separating means is a hanger bar fixed parallel to the ground directly above the roll axis; It is installed on the hanger bar and may include a pressurizing tool that presses the upper surface of the transformer iron core coming up from the bottom so that the transformer iron core attached to the magnet body is separated by magnetic force.

According to another feature of the present invention, as being installed on the bottom of the supporting rail, the loading table for providing a loading plane for stacking the transformer iron core falling from above; and a loading table lift installed at the bottom of the support rail, for adjusting the height of the loading table corresponding to the height at which the transformer iron cores are stacked.

According to another feature of the present invention, it is installed on the upper part of the coil transfer table of the base frame and punches a hole in the coil being transferred; may further include.

According to the above configuration, in the transformer core manufacturing apparatus for manufacturing two types of transformer cores by cutting (or punching) continuously supplied coils, two types of transformer cores are classified by type and loaded A transformer iron core manufacturing apparatus having a sorting function that can be loaded on a stand is provided.

According to another feature of the present invention, it is possible to quickly and accurately classify thin transformer iron cores by a very simple configuration. In addition, there is provided a transformer iron core manufacturing device having a sorting function that has a compact configuration and has little risk of failure, so that there is no difficulty in maintenance, and the work of supplying to the subsequent process by the operator after sorting and loading can be conveniently carried out.

1 is an overall side configuration diagram of a transformer iron core manufacturing apparatus according to an embodiment of the present invention.
2 is a perspective view of a sorting unit of a transformer iron core manufacturing apparatus according to an embodiment of the present invention.
3 is a front view of a sorting unit of a transformer iron core manufacturing apparatus according to an embodiment of the present invention.
4 is a plan view of a classification unit of an apparatus for manufacturing an iron core of a transformer according to an embodiment of the present invention.
FIG. 5 is a cross-sectional view taken along line AA of FIG. 4 .
6 is a cross-sectional view illustrating the operation of the sorting unit of the transformer iron core manufacturing apparatus according to an embodiment of the present invention step by step.
7 is a bottom view of the first roll shaft of the sorting unit of the transformer iron core manufacturing apparatus according to an embodiment of the present invention.
8 is a front configuration view of a classification unit of a transformer iron core manufacturing apparatus according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings accompanying the specification. However, where necessary, specific drawings will be additionally cited.

First, with reference to Figure 1, the overall details of the device will be schematically described.

The base frame 1 provides a working plane at the height of the worker's waist. Various devices are installed on the upper part of the base frame (1). A coil feeder (3) is installed on one side of the base frame (1). The coil transfer table 5 is installed on the upper surface of the base frame 3, supports the lower surface of the coil C, and guides the transfer direction of the coil. The coil transfer and supply unit 7 supplies coils to the coil transfer table 5 . The punching unit 9 is installed above the coil transfer table 5 of the base frame and punches a hole in the coil being transferred. The cutting part 11 is installed on the upper part of the coil transfer table 5 of the base frame 3 and at the rear end of the punching part 9, and includes a cutting part 11 for cutting the coil being transferred.

Depending on circumstances, the punching part 9 may be omitted or may be interpreted as being included in the concept of the cutting part 11 . In addition, the cutting part 11 is also a concept including the cutting part 9. And a sorting unit 13 that classifies the two types of transformer iron cores (C', C") discharged from the cutting unit 11 according to type (see FIG. 4) is included. Finally, the classification unit 13 classifies the The iron core of the transformer is loaded and discharged in the loading and discharging unit 15.

The main feature of the present invention is the sorting unit 13 and the loading and discharging unit 15.

Hereinafter, the classification unit 13 will be described first.

The continuity of the coil (C) is cut off by the cutting part 11 installed at the end of the device body, so that the completed transformer iron cores (C', C") are discharged while alternating toward the front of the device body.

The support rail 17 is installed to extend in the direction in which the transformer iron cores C' and C" are discharged. The support rail 17 is sufficiently long, which is for a long transformer iron core. The support rail 17 is long It is a strip-shaped plate and is an optional component, that is, it can be omitted as shown in FIG.

The first and second roll shafts 19 and 21 are installed parallel to the support rail 17 on the left and right sides of the bottom of the support rail 17, that is, in the direction in which the transformer iron cores C' and C" are discharged. ,The second roll shafts 19 and 21 are installed horizontally. According to this embodiment, the first and second roll shafts 19 and 21 are simultaneously driven by the roll shaft east part 23. Therefore, the first and second roll shafts (19, 21) are rotationally driven in the same direction. Although described later, the number and diameter of the roll shaft may be different depending on the width of the cores (C', C") of the transformer. Hereinafter, it will be described that two roll shafts are installed as a basic type.

The roll shaft eastern part 23 includes a driving motor 25 and a driving force transmission unit 27 that transmits the rotational force of the driving motor 25 to the first and second roll shafts 19 and 21, respectively. The driving force transmission means 27 may be a timing belt, chain, or gear. As shown, the support rail 17 is placed on the space where the first and second roll shafts 19 and 21 converge.

A plurality of first magnet bodies 29 are fixedly installed along the longitudinal direction of the first roll shaft 19 . The first magnet body 29 holds the transformer cores (C', C") sliding along the upper surface of the support rail 17 with magnetic force to the outside of the first roll shaft 19 (ie, the first 2) in the opposite direction of the roll axis 21. Details on this will be described later.

According to another feature of the present invention, the first magnet body 29 is installed in two rows along the circumferential direction of the first roll shaft 19 and has an angle K of 110 to 130 ° in an arc angle. This is to stably grip the iron core of the transformer using two magnets having a phase difference and pull it outward.

The first magnet body 29 is inserted and fixed into a hole 31 provided at right angles to the surface of the first roll shaft 19 .

Meanwhile, a plurality of second magnet bodies 33 are fixedly installed along the longitudinal direction of the second roll shaft 21 . The second magnet body 33 holds the transformer iron cores C' and C" sliding on the support rail 17 with magnetic force so that they are released outward in the opposite direction to the first roll shaft 19.

The second magnet body 33 is inserted and fixed into a hole 31' provided at right angles to the surface of the second roll shaft 21. The second magnet bodies 33 are installed in two rows to have an angle K' of 110 to 130°, more specifically, 120° in an arc angle.

On the other hand, the transformer iron core separating means 35 separates the transformer iron cores (C', C") that have been released to the outside of the support rail 17 by the first and second magnet bodies 29 and 33 from the magnetic force and falls downward. drop

According to this embodiment, the transformer iron core separating means is a hanger bar 37 fixed in parallel to the ground at the right upper part of the support rail 17, and installed to extend in one direction to the hanger bar 37, A first pressurizing sphere (39) that presses the upper surface of the transformer core (C', C") so that the transformer core (C', C") magnetically attached to the first and second magnet bodies (29, 33) is separated , It is installed to extend to the other side of the hanger bar 37, and presses the upper surface of the transformer iron core coming up from the bottom to separate the transformer iron core attached to the second magnet bodies 29 and 33 with magnetic force. (41) may be included. The first and second pressing devices 39 and 41 are installed to adjust positions and installation angles along the longitudinal direction of the hanger bar 37 . Since they have the same configuration, reference numerals are given and described only for the first pressing sphere 39.

The first pressure sphere 39 includes a sleeve 43 slidably coupled to the hanger bar 37, a lever 45 connected to the sleeve 43, and a roller 47 installed at the end of the lever 45. In order to fix the position of the first pressure sphere, a pressure screw rod 49 that presses the hanger bar 37 while being screwed into the sleeve 43, and a fixing handle 51 installed at the end of the pressure screw rod 49 can be configured.

According to another feature of the present invention, the first and second roll shafts 19 and 21 are provided with seating grooves 53 and 53' at regular intervals along the longitudinal direction and with a constant depth and width along the circumferential direction. In addition, extension pieces 55 having a thickness corresponding to the depth of the seating grooves 53 and 53' are protruded and extended on the left and right sides along the longitudinal direction of the support rail 17, and the extension pieces 55 are inserted into the seating grooves. can

According to another feature of the present invention, on both sides of the bottom of the support rail 17, loading stands 57 and 59 are installed to provide a loading plane for stacking the transformer iron cores C' and C" falling from above. The loading platforms 57 and 59 are configured to be transportable by having transport wheels 61. The loading platforms 57 and 59 are lifted according to the height of the support rail 17 and then gradually descend to contact the ground do.

In addition, a loading platform lift 63 is further installed at the bottom of the supporting rail to adjust the height of the loading platform corresponding to the height at which the transformer cores are stacked.

Hereinafter, the operation by the above configuration will be described with reference to FIGS. 6a, 6b, 6c, 6d, and 6e.

Until the iron core of the transformer arrives at a specific position, the first magnet body 29 is spaced apart from the support rail 17 as much as possible. That is, the first magnet body 29 is located below the first roll shaft 19 (see FIG. 6A).

When the transformer iron core (C') arrives at a specific position, the first roll shaft (19) rotates counterclockwise so that the first magnet body (29) approaches the supporting rail (17) so that the first roll shaft (19) rotates The transformer iron core (C') adheres to the first roll shaft 19 by magnetic force (see Fig. 6b). The arrival of the transformer iron core (C') at a specific position is sensed by the position sensor (65, see Figs. 2 and 5). Two position sensors 65 may be installed side by side or in a zigzag form so that there is no judgment error. This is to avoid mistaking the hole in the transformer core (C') as the end of the transformer core.

Furthermore, when the first roll shaft 19 continues to rotate in the same direction, the magnets in front of the first magnet body move away from the support rail 17 in order (see Figs. 6b and 6c).

At this moment, the transformer iron core (C'), which was about to be rolled along the first roll shaft 19, has its rear part, that is, the right part in the drawing, as indicated by the arrow J in FIG. It is pressed and completely separated from the first magnet body 19 (see Fig. 6d).

Then, the transformer iron core (C') is thrown to the left in the drawing by inertia (see Fig. 6e). In the meantime, the first magnet body 29 rotates to a position where magnetic force cannot be applied to the transformer iron core C', and returns to the position shown in FIG. 6A again. Through this process, the iron core of the transformer is separated from the support rail 17. That is, the transformer core (C') is classified according to the rotation of the first and second roll shafts (19, 21).

Although not shown, another transformer iron core (C") following is loaded while being thrown to the right in the drawing as the second roll shaft 21 rotates in the opposite direction to that of FIG. 6, that is, clockwise.

In this way, the first and second roll shafts 19 and 21 rotate once in a clockwise direction and once in a counterclockwise direction, sorting and loading the two types of transformer cores (C', C") in different directions. .

The transformer iron cores (C', C") separated from the support rail 17 are loaded on the loading platforms 57 and 59, and the loading platform lift 63 adjusts to the height of the transformer cores stacked on the loading platforms 57 and 59 When the loading tables 57 and 59 reach the ground and are stacked as much as possible, the operator takes the loading tables 57 and 59 out.

Hereinafter, another embodiment of the present invention will be described with reference to FIG. 8 .

As shown, the roll axis may be one as in FIG. 8 (a), three as in FIG. 8 (b), or four as in FIG. 8 (c). Each roll axis (19, 21, 22, 24) can be installed differently according to the width of the transformer iron core (C', C"). The magnet bodies (29, 31, 32, 34) provided on each roll axis are Furthermore, the installation number and diameter of the roll shaft are not limited to those shown.

What has been described above is only a few examples based on the technical idea of the present invention. Those skilled in the art will be able to make various modifications by utilizing the exemplified bar without exceeding the scope of the technical idea of the present invention expressed through the claims. For example, all embodiments described above may be freely combined and implemented by those skilled in the art, and any combination should be construed as being included in the scope of the present invention.

1: base frame 3: coil feeder
5: coil transfer table 7: coil transfer supply unit
9: punching part 11: cutting part
13: sorting unit 15: loading and discharging unit
17: supporting rail 19,21,22,24: 1st, 2nd, 3rd, 4th roll axis
23: eastern roll shaft 25: drive motor
27: driving force transmission means 29,33,34,36: first and second magnet bodies
31,31': Hall 35: Transformer iron core separation means
37: hanger bar 39,41: 1st, 2nd pressure zone
43: sleeve 45: pressure screw rod
51: fixed handle 53,53': seating groove
55: extension 57,59: loading stand
61: transport wheel 63: loading platform lift
65: position sensor
C: coil C1,C2: transformer core

Claims (6)

Base frame providing a working plane at the height of the worker's waist;
A coil feeder installed on one side of the base frame;
a coil transfer table installed on the upper surface of the base frame, supporting the lower surface of the coil and guiding the transfer direction of the coil;
a coil transfer supply unit supplying the coil to the coil transfer table;
a cutting part installed above the coil transfer table of the base frame and alternately cutting the coil being transferred into two types so that two types of transformer iron cores are alternately produced; and
A classification unit for classifying the two types of transformer iron cores discharged from the cutting unit according to type;
The classification unit,
a support rail for supporting the transformer iron core and extending in a direction in which the transformer iron core is discharged;
a roll shaft extending in a direction in which the iron core of the transformer is discharged; a plurality of magnet bodies which are fixedly installed along the longitudinal direction of the roll shaft and hold the transformer iron core discharged by magnetic force so as to be separated outward; and a transformer core separating means for separating the transformer core from the magnetic force and dropping it downward from the magnetic force by the magnet body;
The transformer iron core separation means,
A hanger bar fixed parallel to the ground directly above the roll axis;
a first pressing device installed in one direction on the hanger bar and pressing the upper surface of the transformer core coming up from below so that the transformer core attached to the magnet body is separated by a magnetic force;
A transformer with a sorting function characterized in that it includes a; second pressurizing sphere installed in the other direction to the hanger bar and pressing the upper surface of the transformer iron core coming up from the bottom so that the transformer iron core attached to the magnet body with magnetic force is separated. Iron core manufacturing equipment.
According to claim 1,
The roll shaft is composed of first and second roll shafts arranged in parallel;
Characterized in that the support rail is installed between the first and second roll axes in parallel with the first and second roll axes, the transformer iron core manufacturing apparatus with a sorting function.
According to claim 1,
The magnet body is inserted and fixed into a hole provided at right angles to the surface of the roll axis, and is installed in two rows along the circumferential direction of the roll axis, characterized in that it is installed to have an angle between 110 and 130 ° in an arc angle. Transformer iron core manufacturing equipment with functions.
delete According to claim 2,
The first and second roll shafts are provided with recesses having a constant depth and width along the circumferential direction at regular intervals along the longitudinal direction;
An extension piece having a thickness corresponding to the depth of the seating groove protrudes from left and right sides along the longitudinal direction of the support rail, and the extension piece is inserted into the seating groove.
According to claim 1,
a loading table installed at the bottom of the roll shaft and providing a loading plane for stacking the iron core of the transformer falling from above; and
a loading table lift installed at the bottom of the roll shaft to adjust the height of the loading table corresponding to the height at which the transformer iron cores are stacked;
Characterized in that it further comprises a transformer iron core manufacturing apparatus with a sorting function.

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