KR102142358B1 - Apparuatus for corecting telescope of coil and cooling of coil inner part - Google Patents

Abstract

In the present invention, it is possible to uniformly cool the entire coil by simply calibrating the telescope (dish shape) generated when winding the coil in the inner winding part of the winding coil before delivery of the coil to the consumer and cooling the inner winding part of the coiled coil. A coil telescopy calibration and coil inner winding cooling device, and the coil telescope calibration and coil inner winding cooling device according to an embodiment of the present invention includes: a first crystal plate for calibrating a coil having a telescope; And a cooling water inlet line connected to the first crystal plate through a hole in the center of the first crystal plate to cool the inner winding portion of the coil; and a fixed base portion including the fixed base portion and a direction facing the first crystal plate, A second crystal plate for calibrating the coil; A driving unit for moving the second crystal plate; And a cooling water outlet line connected to a second crystal plate through a hole in the center of the second crystal plate and a cooling water outlet line for discharging cooling water flowing into the inner winding portion of the coil.

Description

Coil telescope calibration and coil inner coil cooling device {APPARUATUS FOR CORECTING TELESCOPE OF COIL AND COOLING OF COIL INNER PART}

The present invention is a coil telescopic calibration and coil capable of uniformly cooling the entire coil by simply calibrating the telescope (dish shape) generated during coil winding before delivery of the coil to the consumer and simultaneously cooling the inner winding of the coiled coil. It relates to an inner winding cooling device.

In general, in the process of winding a coil using a tension reel, which is one of the correction facilities of a hot rolling mill, the inner winding of the coil protrudes due to the skill of the operator, the condition of the equipment, or defects in raw materials, etc. ), or, conversely, when the outer sphere protrudes to form a telescope (not shown), it occurs (where (a) in FIG. 1 represents a normal coil, and in (b) in FIG. 1 ). T means the amount of telescope).

When a telescope is generated in the hot rolled coil as described above, the quality of products such as the cold rolled coil that is finally produced is deteriorated and consumer complaints are caused.

Therefore, the telescope-generated coil is shipped in the form of an intermediate product through calibration, or passed to the next production stage.

On the other hand, in the case of rolling and winding the strip, especially the thick material, the tip (head) of the strip is usually heated to improve the winding and mailing properties of the strip.

However, when the temperature of the heated tip is higher than a certain temperature, the risk of defective material of the strip increases due to the high temperature of the tip.

Particularly, the high temperature of the heated tip portion causes an undesired phase transformation during the cooling process of the coil, causing unevenness of the microstructure of the final product.

Conventionally, the coil wound is first calibrated with a telescope calibrator to calibrate the telescope of the coil, and then the coil is transferred to the next process, and then the temperature of the coil inner coil is cooled to solve the temperature unevenness of the calibrated coil. The temperature of the inner winding part of the coil was cooled using a cooling device.

The multi-step process as described above takes a process time for performing the process of each step, and there is a problem that additional process time is required in the process of loading and unloading a heavy coil into a coil car or a saddle base for each step and a coil alignment process. .

Furthermore, in the process of loading and unloading the coil with a coil car using a crane, there is a high possibility of a safety accident.

In addition, in the cooling process, there is a problem in that additional expensive equipment is usually required because a series of cooling devices must be inserted into the coil in an aligned state.

An object of the present invention is to provide a coil telescope calibration and coil inner winding cooling device capable of simultaneously performing coil telescopic calibration of a coil and cooling of the coil inner winding.

Another object of the present invention is to perform the telescopic calibration process of the coil and the cooling process of the coil inner part at the same time, and furthermore, the entire process time by omitting essential coil transfer, loading and unloading, and alignment processes between each individual process. It is to provide a coil telescope calibration and coil inner winding cooling device that can shorten the time.

Another object of the present invention is to perform the telescopic calibration of the coil and the cooling of the coil inner winding at the same time, so that the process of transferring and loading and unloading the coil between each process can be omitted, thereby preventing safety accidents in advance. It is to provide a coil telescope calibration and a coil inner winding cooling device.

The objects of the present invention are not limited to the objects mentioned above, and other objects and advantages of the present invention not mentioned can be understood by the following description, and will be more clearly understood by the embodiments of the present invention. In addition, it will be readily appreciated that the objects and advantages of the present invention can be realized by means of the appended claims and combinations thereof.

In order to achieve the above object, a coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention includes: a first crystal plate for calibrating a coil having a telescope; And a cooling water inlet line connected to the first crystal plate through a hole in the center of the first crystal plate to cool the inner winding portion of the coil; and a fixed base portion including the fixed base portion and a direction facing the first crystal plate, A second crystal plate for calibrating the coil; A driving unit for moving the second crystal plate; And a cooling water outlet line connected to the second crystal plate through a hole in the center of the second crystal plate and for discharging cooling water flowing into the inner winding portion of the coil.

Preferably, the fixed base portion, fixed base; A first crystal plate positioned on the fixed base; A coolant inlet line connected to a coolant tank and an inlet and an outlet connected to a hole in the center of the first crystal plate; And a coolant inlet valve located at a predetermined position in the coolant inlet line.

In particular, the diameter of the hole in the center of the first crystal plate may be smaller than the diameter of the inner winding portion of the coil.

Alternatively, the coolant tank may be located higher than the coil.

Preferably, the movable base portion, the movable base; A second crystal plate located above the movable base; A coolant outlet line having an inlet connected to a hole in the center of the second crystal plate; A coolant outlet valve located at a predetermined position in the coolant outlet line; And a driving unit for moving the second crystal plate.

In particular, the length of at least one direction on the plane of the hole in the center of the second crystal plate may be smaller than the diameter of the inner diameter portion of the coil.

Preferably, the size of the hole in the center of the second crystal plate may be larger than the size of the hole in the center of the first crystal plate.

Preferably, a surface of the first crystal plate and/or the second crystal plate contacting the coil may include a synthetic resin layer.

In particular, the synthetic resin layer may be a heat-resistant synthetic resin layer having a glass transition temperature of 200°C or higher.

If the coil telescope calibration and coil inner winding cooling device of the present invention is used, the telescopic calibration of the coil and cooling of the coil inner winding part can be performed simultaneously with one device. Accordingly, there is an advantage in that the installation cost of equipment is reduced.

Furthermore, the coil telescope calibration and coil inner winding cooling apparatus of the present invention has an advantage of reducing the process time compared to the case where the above processes are performed by simultaneously performing the coil telescopic calibration process and the coil inner winding cooling process. .

In particular, according to the present invention, there is an advantage in that the transfer, loading and unloading of the coils essential between each individual process, and the alignment process can be omitted in at least one process, thereby greatly improving productivity.

On the other hand, the coil telescope calibration and coil inner winding cooling device of the present invention has an advantage of not having to provide a separate device for the alignment since the cooling device of the coil inner winding part and the coil inner winding part are not required to be aligned.

In addition, the coil telescope calibration and coil inner winding cooling device of the present invention has the advantage of not requiring expensive equipment such as separate nozzles and pumps for injecting coolant because the cooling water can be spontaneously injected into the coil inner winding by potential energy. have.

In addition to the above-described effects, the concrete effects of the present invention will be described together while describing the specific matters for carrying out the invention.

1 is a conceptual diagram for explaining a coil telescope.
2 is a block diagram of a conventional telescope automatic calibration device.
3 is a configuration diagram of a coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention.
4 is a view showing a coil telescope calibration according to an embodiment of the present invention and a coil inner winding cooling device operating a coil.
5 is a view showing the flow of cooling water in the coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention.
6 is a view showing a state of contact with the coil before and after the coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention pressurize the coil.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the drawings so that those skilled in the art to which the present invention pertains can easily practice. The present invention can be implemented in many different forms and is not limited to the embodiments described herein.

In order to clearly describe the present invention, parts irrelevant to the description are omitted, and the same reference numerals are assigned to the same or similar elements throughout the specification. In addition, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, the same components may have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing the present invention, when it is determined that detailed descriptions of related well-known structures or functions may obscure the subject matter of the present invention, detailed descriptions thereof may be omitted.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the components from other components, and the essence, order, order, or number of the components is not limited by the terms. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but different components between each component It should be understood that the "intervenes" may be, or each component may be "connected", "coupled" or "connected" through other components.

In addition, in implementing the present invention, components may be subdivided for convenience of description, but these components may be implemented in one device or module, or one component may be multiple devices or modules. It can be implemented by being divided into.

2 is a block diagram of a conventional telescope automatic calibration device 1.

As shown in Fig. 2, the coil C mounted on the conveyor saddle base B is pressurized by a plate-shaped crystal plate 3 whose both sides are advanced and reversed by the cylinder 2.

The telescope generated in the coil (C) is corrected by being in close contact with the crystal plate (3) by mechanical force caused by the cylinder (2).

3 is a configuration diagram of a coil telescope calibration and coil inner winding cooling apparatus 100 according to an embodiment of the present invention.

The coil telescope calibration and coil inner winding cooling apparatus 100 according to an embodiment of the present invention includes a fixed base portion 10 and a movable base portion 20.

The fixed base part 10 is connected to the fixed base 11 and the first crystal plate 12 located above the fixed base 11, the cooling water tank located above the fixed base 11 and the inlet, and the outlet Includes a coolant inlet line 14 connected to a hole 13 in the center of the first crystal plate 12 and a coolant inlet valve 15 located at a predetermined position of the coolant inlet line 14 do.

At this time, it is sufficient if the cooling water tank is located only above the center hole 13 of the crystal plate 12.

As a non-limiting specific example, as shown in FIG. 3, the cooling water tank is preferably directly connected to the support 16 connected to the fixed base, but is not necessarily limited to miniaturization or compactness of the device.

On the other hand, the diameter of the hole 13 in the center of the first crystal plate 12 is preferably smaller than the inner diameter portion of the coil. If the inner diameter of the coil is smaller than the hole 13 in the center of the first crystal plate 12, the coolant cools not only the inner diameter of the coil but also the side of the coil. As a result, it is because it is difficult to secure a uniform temperature of the coil by cooling the inner side of the coil having a relatively high temperature as well as the side surface of the coil having a relatively low temperature with cooling water.

The movable base portion 20 is located in a direction facing the first crystal plate 12 of the fixed base 10, and the second crystal plate (located on the movable base 21 and the upper portion of the movable base 21) 22), the cooling water outlet line 24, the inlet is connected to the hole 23 in the center of the second crystal plate 22, the cooling water outlet valve located at a predetermined position of the cooling water outlet line 24 ( 25) and a driving unit 26 for moving the second crystal plate 22.

At this time, the outlet of the cooling water outlet line 24 is preferably connected to a cooling water storage tank (not shown), but is not limited thereto.

In addition, it is preferable for the driving unit 25 to move the movable base 21 as well as the second crystal plate 22 for the connection of the coolant outlet line 24, but is not limited thereto.

In addition, the outlet of the coolant outlet line 24 is preferably connected to a coolant storage tank (not shown), but is not limited thereto.

The shape of the hole 23 in the center of the second crystal plate 22 is not limited. As a specific and non-limiting example, the hole 23 in the center of the second crystal plate 22 may have a polygonal shape including a circle, ellipse, or square.

However, it is preferable that the length of at least one direction on the plane of the hole 23 at the center of the second crystal plate 22 is smaller than the diameter of the inner diameter portion of the coil C.

If the length of all the holes on the plane of the hole 23 in the center of the second crystal plate 22 is larger than the diameter of the inner diameter portion of the coil C, the telescope of the coil contacting the second crystal plate 22 This is because some of them may not be corrected due to the hole 23 in the center of the second crystal plate 22.

On the other hand, the size of the hole 23 in the center of the second crystal plate 22 is preferably larger than the hole 13 in the center of the first crystal plate 12.

If the hole 23 in the center of the second crystal plate 22 is smaller than the hole 13 in the center of the first crystal plate 12, the pressure of the cooling water when discharging the cooling water in the inner winding portion of the coil C This is because the coolant may flow out at intervals between the coil C and the second crystal plate 22.

Meanwhile, the residence time of the cooling water in the inner winding part of the coil C may be controlled through the cooling water outlet valve 25.

Specifically, the coolant flowing into the inner coil portion of the coil C by opening the coolant inlet valve 15 remains while the coolant outlet valve 25 is closed while staying in the inner coil portion of the coil C. The inner portion of the coil C is cooled. Then, after the predetermined time has elapsed, when the coolant outlet valve 25 is opened, the coolant remaining in the coil C inner portion is cooled through the coolant outlet line 24 through the coil C ).

Meanwhile, it is preferable that the surfaces of the first crystal plate 12 and/or the second crystal plate 22 contacting the coil C include synthetic resin layers 12-1 and 22-1. In this case, the synthetic resin layer is more preferably a heat-resistant synthetic resin layer (12-1, 22-1). If the surface in contact with the coil C of the first crystal plate 12 and/or the second crystal plate 22 is made of synthetic resin, it is effective to prevent leakage of cooling water flowing into the coil inner winding due to the inherent elasticity of the synthetic resin. to be.

Furthermore, when the synthetic resin layer is composed of a heat-resistant synthetic resin layer, it is more effective in preventing deterioration of the synthetic resin layer due to the heat of the coil (C).

The heat-resistant synthetic resin generally refers to a synthetic resin having excellent heat-resistant properties compared to heat-resistant synthetic resins. In order for the synthetic resin to have heat resistance, the glass transition temperature (Tg) of the synthetic resin must be high. Generally, synthetic resins with a glass transition temperature of 200°C or higher are classified as heat-resistant synthetic resins. Non-limiting examples of heat-resistant synthetic resins include Polyetheretherketone (PEEK).

The driving unit 26 is applicable to any known device capable of moving the second crystal plate 22. As a non-limiting and specific example, a known device such as a hydraulic cylinder or a pneumatic cylinder can be used.

4 is a view showing a coil telescope calibration according to an embodiment of the present invention and the coil inner winding cooling device operating the coil.

5 is a view showing the flow of cooling water in the coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention.

6 is a view showing the state of contact with the coil before and after the coil telescopic calibration and coil inner winding cooling apparatus according to an embodiment of the present invention pressurize the coil.

With reference to FIGS. 4 to 6, the operation state of the coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention will be described.

The coil C where the telescope has been generated is transferred by a known means such as a crane to be seated on the coil car or saddle base.

When the coil C is seated, the movable base 21 and the second crystal plate 22 are moved by the driving unit 26 to mechanically press the coil C from both sides in the width direction of the coil C. .

As shown in FIG. 5(a) due to the mechanical pressing, the coil C having a telescope before pressurization is shown in FIG. 1 after pressing due to pressurization with the first crystal plate 12 and the second crystal plate 22. The shape is restored to a coil in a steady state (without a telescope) as shown in (a) and 5 (b).

The coil C in the steady state may maintain a state in close contact with the first crystal plate 12 and the second crystal plate 22 due to mechanical pressure by the driving unit 26.

Therefore, when the coolant inlet valve 15 is opened, the coolant from the coolant tank located above the coil as shown in FIG. 6(a) passes through the coolant inlet line 14 by potential energy and coils. (C) flows into the inner sphere.

At this time, unlike the conventional coil (C) inner winding cooling devices, the coil telescope calibration and coil inner winding cooling device according to an embodiment of the present invention does not have a separate component such as a nozzle for cooling, and thus the coil (c) Alignment of the inner winding part and the cooling device is not required.

As described above, the coolant flowing into the inner winding part of the coil C stays within the inner winding part of the coil C for a certain time when the cooling water outlet valve 25 is closed, and the desired cooling coil outlet is desired. Cool to the temperature of.

Thereafter, when the coolant outlet valve 25 is opened, the coolant remaining in the inner winding portion of the coil C is discharged to the outside through the coolant outlet line 24, as shown in FIG. 6(b).

On the other hand, the cooling water flowing into the inner winding portion of the coil (C) may be leaked to some extent through the gap between the coil (C) and the first crystal plate 12 and / or the second crystal plate (22).

However, the coil C, the first crystal plate 12, and the second crystal plate 22 are pressed by the driving unit 26, and the supply position of the cooling water is higher than that of the coil C.

Therefore, since the supply amount of coolant by the potential energy is greater than the leakage amount of coolant, the inner winding portion of the coil C can be maintained at a predetermined level or higher, and furthermore, the inner winding portion can be filled with cooling water.

As described above, the present invention has been described with reference to the exemplified drawings, but the present invention is not limited by the examples and drawings disclosed in the present specification, and it is various by a person skilled in the art within the scope of the technical idea of the present invention. It is obvious that modifications can be made. In addition, although the operation and effect according to the configuration of the present invention is not explicitly described while describing the embodiments of the present invention, it is natural that the effect predictable by the configuration should also be recognized.

C: coil
T; Telescope amount
B: Conveyor saddle base
1: Conventional telescope automatic calibration device
2: Cylinder
3: Crystal Edition
10: fixed base portion
11: Fixed base
12: First revision
12-1: Heat-resistant synthetic resin layer
13: center hole of the first crystal plate
14: Cooling water inlet line
15: coolant inlet valve
16: Support
20: movable base
21: movable base
22: Second revision
23: center hole of the second crystal plate
24: coolant outlet line
25: coolant outlet valve
26: drive unit
22-1: Heat-resistant synthetic resin layer
100: coil telescope calibration and coil inner winding cooling apparatus according to an embodiment of the present invention

Claims (9)

A first crystal plate for calibrating a coil having a telescope; And
A fixed base portion including a cooling water inlet line connected to the first crystal plate through a hole in the center of the first crystal plate and cooling the inner winding portion of the coil;
A second crystal plate positioned in a direction facing the first crystal plate and correcting the coil;
A driving unit for moving the second crystal plate; And
A movable base portion including; a cooling water outlet line connected to a second crystal plate through a hole in the center of the second crystal plate and for discharging coolant flowing into the inner winding portion of the coil;
Coil telescope calibration and coil inner winding cooling device comprising a.
According to claim 1,
The fixed base portion,
Fixed base;
A first crystal plate positioned on the fixed base;
A coolant inlet line connected to a coolant tank and an inlet and an outlet connected to a hole in the center of the first crystal plate; And
A coolant inlet valve located at a predetermined position in the coolant inlet line;
Coil telescope calibration and coil inner winding cooling device comprising a.
According to claim 2,
The diameter of the hole in the center of the first crystal plate is smaller than the diameter of the inner winding portion of the coil;
Coil telescope calibration and coil inner cooling system.
According to claim 2,
The coolant tank is located higher than the coil;
Coil telescope calibration and coil inner cooling system.
According to claim 1,
The movable base part,
Movable base;
A second crystal plate located above the movable base;
A coolant outlet line having an inlet connected to a hole in the center of the second crystal plate;
A coolant outlet valve located at a predetermined position in the coolant outlet line; And
A driving unit for moving the second crystal plate;
Coil telescope calibration and coil inner winding cooling device comprising a.
The method of claim 5,
A length in one direction passing through the center of the hole in the center of the second crystal plate on a plane facing the coil of the second crystal plate is smaller than the diameter of the inner diameter portion of the coil;
Coil telescope calibration and coil inner cooling system.
According to claim 1,
The size of the hole in the center of the second crystal plate is larger than the size of the hole in the center of the first crystal plate;
Coil telescope calibration and coil inner cooling system.
According to claim 1,
A surface of the first crystal plate and/or the second crystal plate contacting the coil includes a synthetic resin layer;
Coil telescope calibration and coil inner winding cooling device comprising a.
The method of claim 8,
The synthetic resin layer is a heat-resistant synthetic resin layer having a glass transition temperature of 200°C or higher;
Coil telescope calibration and coil inner cooling system.

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