KR101622142B1

KR101622142B1 - Skid apparatus for loading coil

Info

Publication number: KR101622142B1
Application number: KR1020140166171A
Authority: KR
Inventors: 유지원; 김형전; 정창규
Original assignee: 주식회사 포스코
Priority date: 2014-11-26
Filing date: 2014-11-26
Publication date: 2016-05-19

Abstract

Disclosed is a skid apparatus for loading a coil. The skid apparatus for loading a coil for support a roll-shaped coil according to an embodiment of the present invention comprises a base plate and a support assembly installed on the base plate, and having multiple unit supports with two contact surfaces which are capable of independently contacting with different locations of a circumferential surface of the coil, arranged in the width direction of the coil. At least one of the unit supports is formed to be slid for two contact surfaces of each unit support not to simultaneously contact with the circumferential surface of the coil, when the coil is put on the support assembly.

Description

[0001] SKID APPARATUS FOR LOADING COIL [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coil inner skid device, and more particularly, to a coil inner sheath skid device capable of minimizing a temperature deviation of a coil while supporting the coil.

Generally, steel products are produced according to the dimensions, appearance and metallurgical conditions desired by customers through steel making, steelmaking and rolling processes. In order to satisfy the mechanical properties desired by customers, rolled steel products are heat treated such as annealing and tempering . In order to secure the mechanical properties of the target material, it is necessary to control the phase transformation of the iron precisely in the post-rolling heat treatment process. Since the temperature difference between the inner coil, the outer coil and the side coil is larger than that of other products, , And if uniform heat treatment is not performed in the width direction, there is a great risk that a material deviation of the product occurs. In particular, when a material deviation occurs in the hot-rolled coil, twisting and shape defects occur during cold rolling, which is a subsequent process, resulting in a production disorder.

Although the uniformity of the temperature of the coil after winding is very important for the quality of the product, a temperature deviation of the coil at the contact portion with the skid device used to support the coil during transportation and stacking is severely generated, There arises a problem that causes a material deviation.

Korean Registered Patent No. 1140825 (published on April 20, 2012)

Embodiments of the present invention are directed to providing a coil-in-sheath skid device capable of minimizing the temperature drift during the placement of coils.

The problems to be solved by the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a coil inner skid device for supporting a coil in the form of a roll, comprising: a base plate; and a base plate provided on the base plate, At least one of the plurality of unit pedestals is slidably movable so that when the coil is placed on the pedestal assembly, the unit pedestal assembly includes a plurality of unit pedestals, A coil inner wear skid device may be provided in which the two contact surfaces are not brought into contact with the circumferential surface of the coil at the same time.

Further, the two contact surfaces of the unit pedestal may be inclined upward toward both sides with respect to a line where the two contact surfaces meet.

The unit pedestal includes a pair of stationary pedestals spaced apart from each other in the width direction of the coil and a movable pedestal installed between the pair of stationary pedestals so as to be slidable in a direction orthogonal to the width direction of the coil .

And a driving device for slidingly moving the movable pedestal.

The base plate may be provided with a guide rail for guiding the sliding movement of the movable pedestal.

In addition, the driving device may include a cylinder connected to the moving pedestal and having a rod reciprocally movable back and forth, and the rod may reciprocate back and forth at a predetermined time interval.

Also, when the coil is placed on the pedestal assembly, the portions where the plurality of unit pedestals are in contact with the coil may be arranged in a zigzag shape along the width direction of the coil.

The moving pedestal may be linearly reciprocated between a first position where one end portion protrudes from one side of the pair of fixed pedestals and a second position where the other end portion protrudes from the other side of the pair of fixed pedestals.

According to another aspect of the present invention, there is provided a coil inner skid device for supporting a coil in the form of a roll, comprising: a base plate; and a base plate provided on the base plate, And a plurality of unit pedestals provided with a first inclined contact surface and a second inclined contact surface which are upwardly inclined toward both sides so as to be contactable at a predetermined position on the pedestal assembly, wherein the coil is placed on the pedestal assembly At least one unit pedestal of the plurality of unit pedestals has a plurality of unit pedestals arranged in the width direction of the coil so that the first inclined contact surface and the second inclined contact surface of the unit pedestal do not come into contact with the circumferential surface of the coil at the same time, Coil seating staggered with one or more of the other unit pedestals A skid device can be provided.

Embodiments of the present invention can minimize the temperature variation of the coil that can be caused by the skid device by crossing the portion in contact with the coil while reducing the contact area in contact with the coil.

1 is a perspective view showing a state where a coil according to an embodiment of the present invention is placed in a skid device.
2 is a perspective view of a skid device according to an embodiment of the present invention.
3 is a perspective view showing a contact portion of a pedestal assembly in a state where the movable pedestal is retracted according to an embodiment of the present invention.
Figure 4 is a side view of Figure 3;
5 is a perspective view showing a contact portion of the pedestal assembly in a state in which the movable pedestal is advanced according to the embodiment of the present invention.
Fig. 6 is a side view of Fig. 5. Fig.
FIG. 7 is a chart comparing the circumferential temperature distribution of the outer edge of the coil edge 3 hours after the coil is mounted according to the embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

Also, terms including ordinals such as " first, " " second, " and the like can be used to describe various elements, but the elements are not limited by terms. Terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terms used in the present application are used to illustrate the embodiments and are not intended to limit or limit the invention, and the singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprise", "comprising", and the like are intended to specify the presence of stated features, integers, steps, components, or combinations thereof, and may include one or more other features, Steps, elements, or combinations thereof, as a matter of convenience, without departing from the spirit and scope of the invention. Also, when a part is referred to as being "connected" to another part, it includes not only a direct connection but also an indirect connection between the other parts.

1 and 2, a skid device 20 according to an embodiment of the present invention may be used to transport and stack coils 10 and may be used to load coils 10 with coils 10 while the coils 10 are seated. The contact area can be reduced and the temperature deviation of the coil 10 that may occur during heating or cooling during the heat treatment process of the coil 10 can be minimized.

The skid device 20 may be composed of a base plate 30 and a pedestal assembly 40 installed on the base plate 30.

The base plate 30 may be provided in the form of a plate for supporting the pedestal assembly 40 and a pedestal assembly 40 may be installed on the upper surface of the base plate 30 to form a contact surface on which the coil 10 is seated. have.

The pedestal assembly 40 includes a plurality of unit pedestals 50 disposed on the upper surface of the base plate 30. The plurality of unit pedestals 50 have the same size and shape, and the plurality of unit pedestals 50 can be supported by the coils 10 mounted thereon.

Each of the plurality of unit pedestals 50 may be provided in the form of a box having a rectangular shape and may be arranged in a row adjacent to each other along the width direction of the coil 10 on the upper surface of the base plate 30.

The plurality of unit pedestals 50 may have two contact surfaces 51 and 52, respectively, which can contact the two different parts of the coil 10 when the coil 10 is placed on it.

The two contact surfaces 51 and 52 are provided on the upper surfaces of the respective unit pedestals 50a, 50b and 50c. When the coils 10 are placed on the upper surfaces of the unit pedestals 50a, 50b and 50c, The first inclined contact surfaces 51 (51a, 51b, 51c) inclined upward toward both sides with reference to a line (L) contacting with each other on the upper surfaces of the unit pedestals (50a, 50b, 50c) so as to be contactable with two different portions along the peripheral surface And a second inclined contact surface 52.

In this embodiment, the pedestal assembly 40 is constructed with three unit pedestals 50a, 50b, and 50c. However, the number of unit pedestals is not limited to the width of the coil 10 It is obvious that the design can be appropriately changed according to

The three unit pedestals 50a, 50b, and 50c arranged in a line on the base plate 30 include a pair of stationary pedestals 50a and 50c sequentially disposed on both the left and right sides and a pair of stationary pedestals 50a and 50c And a moving pedestal 50b disposed between the moving base 50b. The pair of fixed pedestals 50a and 50c are spaced apart from the base plate 30 by a predetermined distance and are fixed and installed. The movable pedestal 50b is slidable back and forth between the pair of fixed pedestals 50a and 50c To the base plate 30.

The pair of fixed pedestals 50a and 50c are arranged so as not to be offset with respect to the width direction of the coil 10 when installed on the base plate 30. The movable pedestal 50b includes a pair of fixed pedestals 50a and 50c The end portions 53 may be positioned so as to protrude from one another between the pair of fixed pedestals 50a and 50c with respect to the width direction of the coil 10. [

In this case, when the coils 10 are placed on the pedestal assembly 40, the two unit pedestals 50a, 50b, and 50c arranged along the width direction of the coil 10 have two adjacent contact surfaces 51 and 52 Is in contact with the circumferential surface of the coil 10, the contact area between the coil 10 and the pedestal assembly 40 is reduced.

The movable pedestal 50b can be installed to be slidable along the guide rail 33 provided on the base plate 30 and can be slidably mounted on the guide rail 33 In the direction orthogonal to the width direction of the coil 10.

The driving device 60 may be constituted by a hydraulic cylinder 62 having one end connected to the movable pedestal 50b and having a rod 61 that can be retracted and the movable pedestal 50b 50c which are projected from the other side of the pair of fixed pedestals 50a, 50c and a second position where the other end portion 54 protrudes from the other side of the pair of fixed pedestals 50a, And can be reciprocated in a sliding manner along the rail 33 between the positions.

That is, when the rod 61 of the hydraulic cylinder 62 is moved backward, the movable pedestal 50b can be disposed at the first position, and when the rod 61 of the hydraulic cylinder 62 advances, the movable pedestal 50b May be disposed in the second position (see FIG. 5). The rod 61 of the hydraulic cylinder 62 can move the movable pedestal 50b alternately between the first position and the second position when the coil is placed on the pedestal assembly 40, have.

The first position is a position where the first inclined contact surface 51 of the movable pedestal 50b can contact the circumferential surface of the coil 10 when the coil 10 is placed on the movable pedestal 50b, The second inclined contact surface 52 of the movable pedestal 50b is defined as a position capable of contacting the circumferential surface of the coil 10 when the coil 10 is placed on the movable pedestal 50b.

Hereinafter, the operation of the coil inner skid device according to the embodiment of the present invention will be described with reference to FIGS. 3 to 6. FIG.

3 and 4, the moving pedestal 50b provided on the base plate 30 is placed on the pedestal assembly 40 in a state in which the moving pedestal 50b is disposed at the first position by driving of the driving device 60, (10).

The outer circumferential surfaces of the coils 10 placed on the pedestal assembly 40 are supported by two adjacent contact surfaces 51 and 52 of the respective unit pedestals 50a, 50b and 50c arranged in a line along the width direction of the coil 10, So as to be seated on the pedestal assembly 40 without being simultaneously in contact with the pedestal assembly 40.

The portion where the pedestal assembly 40 and the coil 10 contact (the hatched portion in the drawing) is arranged in a zigzag form along the width direction of the coil 10 when the coil 10 is placed on the pedestal assembly 40 It is possible to reduce the temperature variation of the coil 10 which occurs during the heat treatment process or the coiling of the coil 10 due to the reduction of the contact area with the coil 10.

On the other hand, when the predetermined time has elapsed, the rod 61 of the hydraulic cylinder 62 advances as shown in Figs. 5 and 6.

As a result, the movable pedestal 50b is moved to the second position, and the contact portion of the coil 10 placed on the pedestal assembly 40 is changed.

Even in such a case, the outer circumferential surfaces of the coils 10 placed on the pedestal assembly 40 are supported by two adjacent contact surfaces 51, 52 of the unit pedestals 50a, 50b, 50c arranged in a row along the width direction of the coil 10 (Not shown) at the same time.

The portion where the pedestal assembly 40 and the coil 10 contact (the hatched portion in the drawing) is arranged in a zigzag form along the width direction of the coil 10 when the coil 10 is placed on the pedestal assembly 40 It is possible to minimize the contact area between the coil 10 and the pedestal assembly 40, which are the main causes of the temperature deviation.

The hydraulic cylinder 62 moves the movable pedestal 50b to the first position and the second position alternately at a predetermined time interval to periodically change the portion where the pedestal assembly 40 and the coil 10 are in contact with each other .

Therefore, the point at which the pedestal assembly 40 and the coil 10 are in contact with each other continuously changes during the movement, the mounting, and the heat treatment of the coil 10, thereby minimizing the temperature deviation in the coil 10 due to the contact portion .

FIG. 7 is a graph showing a comparison of average circumferential temperature distributions of coil windings after a 600-degree coil is stacked for 3 hours using a skid device according to an embodiment of the present invention. In comparison with the use of a single unit pedestal, It can be seen that the difference between the average maximum temperature and the minimum temperature is remarkably reduced.

In the embodiment of the present invention, the pedestal assembly has a pair of fixed pedestals and a movable pedestal disposed staggered between the pair of fixed pedestals. However, three or more unit pedestals may be disposed along the width direction of the coil And in such a case, the fixed pedestal and the movable pedestal can be alternately arranged along the width direction of the coil.

In addition, when a plurality of movable pedestals are provided, a plurality of movable pedestals can be simultaneously moved using a single driving device through a member connecting the plurality of movable pedestals.

The foregoing has shown and described specific embodiments. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined in the appended claims.

10: coil, 20: skid device,
30: base plate, 40: pedestal assembly,
50: unit base, 51,52: contact surface,
50a, 50c: a fixed pedestal, 50b: a moving pedestal,
60: driving device, 61: rod,
62: Hydraulic cylinder.

Claims

CLAIMS What is claimed is: 1. A coil-in-place skid apparatus for supporting a coil in the form of a roll,
A base plate; And
And a plurality of unit pedestals installed on the base plate and having a plurality of unit pedestals provided with two contact surfaces that can be respectively contacted at different positions on the coil circumferential surface of the coil,
At least one of the plurality of unit pedestals is slidably movable so that the two contact surfaces of the unit pedestal are not brought into contact with the circumferential surface of the coil at the same time when the coil is placed on the pedestal assembly.

The method according to claim 1,
Wherein the two contact surfaces of the unit pedestal are each inclined upward toward both sides with respect to a line where the two contact surfaces meet.

3. The method of claim 2,
Wherein the unit pedestal includes a pair of stationary pedestals spaced apart from each other in the width direction of the coil and a moving pedestal slidably installed between the pair of stationary pedestals in a direction orthogonal to the width direction of the coil, An inner wear skid device.

The method of claim 3,
And a driving device for slidingly moving the movable pedestal.

The method of claim 3,
Wherein the base plate is provided with guide rails for guiding the sliding movement of the movable pedestal.

5. The method of claim 4,
Wherein the driving device includes a cylinder connected to the movable pedestal and having a rod reciprocally movable back and forth,
Wherein the rod reciprocates back and forth at a predetermined time interval.

The method according to claim 1,
Wherein a portion of the plurality of unit pedestals that is in contact with the coil when the coil is placed on the pedestal assembly is arranged in a zigzag shape along the width direction of the coil.

The method of claim 3,
Wherein the moving pedestal linearly reciprocates between a first position where one end portion protrudes from one side of the pair of fixed pedestals and a second position where the other end portion protrudes from the other side of the pair of fixed pedestals.

CLAIMS What is claimed is: 1. A coil-in-place skid apparatus for supporting a coil in the form of a roll,
A base plate; And
Wherein the unit base is provided on the base plate and includes a first inclined contact surface and a second inclined contact surface which are inclined upward toward both sides so as to be contactable at different positions on the circumferential surface of the coil when the coil is placed thereon, And a plurality of pedestal assemblies arranged along the direction of the base,
At least one unit pedestal of the plurality of unit pedestals is disposed in the vicinity of the coil so that the first inclined contact surface and the second inclined contact surface of the unit pedestal are not in contact with the circumferential surface of the coil when the coil is placed on the pedestal assembly, And the other unit pedestals of the plurality of unit pedestals are offset from each other with respect to the width direction of the unit pedestals.