KR101350450B1 - Steel sleeve apparatus for cold rolling - Google Patents

Abstract

 The present invention provides a cold rolled steel sleeve device which feeds a rolling mill while unwinding a strip wound on a supply reel, and winds the strip discharged by cold rolling from the rolling mill, wherein the strips which are located at both sides of the rolling mill and are discharged from the rolling mill are wound. A pair of tension reel portions (at least one of the tension reel portions having a groove corresponding to an end of the strip is formed); And a strip conveying portion positioned between the rolling mill and the at least one tension reel portion to convey an end portion of the strip discharged from the rolling mill to be inserted into a groove of the at least one tension reel portion. Disclosed is a sleeve device. Such a cold rolled steel sleeve device reduces the damage that can occur when the cold rolled strip is wound around the tension reel portion.

Description

Cold Rolled Steel Sleeve Device {STEEL SLEEVE APPARATUS FOR COLD ROLLING}

FIELD OF THE INVENTION The present invention relates to cold rolled steel sleeve devices used to wind cold rolled strips, and more particularly to cold rolled steel sleeve devices that can reduce damage to the strips when the strip is wound.

In general, hot rolled coils, which have been hot rolled in stainless steel production, are cold rolled again to meet the demands of the customers, thereby making them beautiful in appearance and accurate in size.

1 shows a cold rolling line 1 according to the prior art. Cold rolling line 1 as shown in Figure 1 is a supply reel 11, the first tension reel 12, the second tension reel 13, deflector rolls (14a, 14b, 14c), rolling mill 15 ) And a guide table 16.

The supply reel 11 advances the annealed strip S toward the rolling mill 15 after hot rolling. The strip S is led to the rolling mill 15 by the deflector roll 14a and the guide table 16, and is passed through the rolling mill 15 to the first tension reel 12 by the deflector roll 14b. . The strip S is wound around the first tension reel 12 from the end. Subsequently, the strip S wound around the first tension reel 12 is unwound, guided to the rolling mill 15 by the deflector roll 14b, and cold rolled through the rolling mill 15 again. Subsequently, the cold rolled strip S is led to the second tension reel 13 by the deflector roll 14c and wound on the second tension reel 13. As described above, the strip S is wound around the first tension reel 12 and the second tension reel 13 and then unwound and passes through the rolling mill 15 repeatedly to form a desired thickness. Since the strip S is wound around the first tension reel 12 and the second tension reel 13, the inner diameter of the coil formed by the strip is not crushed.

In addition, the belt wrapper 17 is generally used when the strip S is wound on the tension reels 12, 13. The belt wrapper 17 may have a shape corresponding to the outer circumferential surfaces of the tension reels 12 and 13, and may be in close contact with the tension reels 12 and 13. This causes the strip S to be wound around the tension reels 12 and 13 in a state where the end of the strip S is in close contact with the outer circumferential surfaces of the tension reels 12 and 13 by the belt wrapper 17. .

However, when the belt wrapper adheres the end of the strip to the outer circumferential surface of the tension reel, the surface of the strip or the outer circumferential surface of the tension reel may be damaged by the belt ripper. For this reason, the strip is defective on the surface in the process of winding the tension reel, there is a problem that the quality of the strip is deteriorated.

The present invention seeks to provide a cold rolled steel sleeve device that can reduce damage to the strip when the cold rolled strip is wound around the tension reel.

The present invention provides a cold rolled steel sleeve device which feeds a rolling mill while unwinding a strip wound on a supply reel, and winds the strip discharged by cold rolling from the rolling mill, wherein the strips which are located at both sides of the rolling mill and are discharged from the rolling mill are wound. A pair of tension reel portions (at least one of the tension reel portions having a groove corresponding to an end of the strip is formed); And a strip conveying portion positioned between the rolling mill and the at least one tension reel portion to convey an end portion of the strip discharged from the rolling mill to be inserted into a groove of the at least one tension reel portion. Disclosed is a sleeve device.

The strip conveying unit may further include: a transfer table forming a guide surface between the rolling mill and the at least one tension reel unit, and leading the end of the strip to a groove of the at least one tension reel unit; And a table cylinder connected to said transfer table, said table cylinder tilting said transfer table such that an end of said strip can be guided into a groove of said at least one tension reel portion. .

The strip conveying unit may further include: a transfer table forming a guide surface between the rolling mill and the at least one tension reel unit, and leading the end of the strip to a groove of the at least one tension reel unit; A transfer press roll positioned between the transfer table and the at least one tension reel portion and pressurizing a lower surface of the strip passing through the transfer table with an end portion of the strip inserted into a groove of the at least one tension reel portion; A pressure roll guide connecting the transfer table and the transfer press roll to guide the transfer press roll to press the bottom surface of the strip by the transfer press roll; And a guide cylinder connected to the pressure roll guide, the guide cylinder configured to change and maintain the length of the pressure roll guide such that the lower surface of the strip is pressurized to a predetermined pressure by the transfer pressure roll. Start the device.

In addition, the cold-rolled steel sleeve device discloses a cold-rolled steel sleeve device further comprises a strip guide portion for guiding the end of the strip discharged from the rolling mill between the rolling mill and the strip conveying portion to the strip conveying portion. do.

The strip induction part may include: an induction deflector roll positioned on a lower surface of the strip discharged from the rolling mill to transfer the strip to the strip transport part; A press roll for pressing an end portion of the strip passing through the induction deflector roll; And a pressurizing cylinder connected to the pressurizing roll and pressurizing the pressurizing roll so that the end portion of the strip is pressurized to a constant pressure so that the pressurizing roll guides the end portion of the strip to the strip conveying portion. A rolled steel sleeve device is disclosed.

In addition, the cold-rolled steel sleeve device discloses a cold-rolled steel sleeve device further comprises a strip supply for supplying the end of the strip unwinded from the supply reel to the rolling mill.

The strip supply unit may further include: a supply deflector roll positioned between the induction deflector roll and the supply reel and configured to transfer an end portion of the strip released from the supply reel to the rolling mill; And a feed table positioned between the induction deflector roll and the feed deflector roll, the feed table leading the end of the strip towards the rolling mill.

The strip supply unit may further include a table guide connected to an inner surface of the insertion space by an elastic member in a state of being inserted into an insertion space of one end surface of the supply table and in close contact with the guide deflector roll. A cold rolled steel sleeve device is disclosed.

In addition, the cold-rolled steel sleeve device discloses a cold-rolled steel sleeve device further comprises a strip supply for supplying the end of the strip unwinded from the supply reel to the rolling mill.

The strip supply unit may further include: a first supply deflector roll positioned between the rolling mill and the supply reel and configured to transfer an end of the strip unwound from the supply reel to the rolling mill; A second supply deflector roll, positioned between the rolling mill and the first supply deflector roll, for transferring an end of the strip passing through the first supply deflector roll to the rolling mill; And a feed table positioned between the first feed deflector roll and the second feed deflector roll, the feed table leading the end of the strip towards the rolling mill.

The strip supply unit may further include a table guide connected to an inner surface of the insertion space by an elastic member in a state of being inserted into an insertion space of one end surface of the supply table and in close contact with the second supply deflector roll. A cold rolled steel sleeve device is disclosed.

The cold rolled steel sleeve device according to the present invention has the following effects.

(1) The cold rolled steel sleeve device according to the present invention includes a tension reel portion, a strip conveying portion, and a strip induction portion, and wound the cold rolled strip in the rolling mill to the tension reel portion. At this time, the strip is wound around the tension reel by using the strip transfer part and the strip induction part in a state where the end of the strip is inserted into the groove of the tension reel part. At this time, no external force acts on the surface of the strip to prevent damage to the strip. Thus, the cold rolled steel sleeve device according to the present invention has the effect of not damaging the strip wound by the tension reel portion, thereby providing an improved surface of the strip.

(2) The cold rolled steel sleeve device according to the present invention further includes a strip supply portion. The strip supply part provides the effect of stably feeding the strip to the rolling mill even if the gap between the feed reel and the feed deflector roll and the gap between the feed deflector rolls is changed.

1 shows a cold rolling line according to the prior art.
FIG. 2 is a view showing a cold rolled line to which a cold rolled steel sleeve device according to a preferred embodiment of the present invention is applied.
FIG. 3 is a perspective view showing the strip conveyance of the cold rolled steel sleeve device shown in FIG. 2.
4 is a perspective view showing the strip supply of the cold rolled steel sleeve device shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

FIG. 2 is a view showing a cold rolled line to which a cold rolled steel sleeve device 100 is applied according to a preferred embodiment of the present invention, and FIG. 3 is a strip conveying part of the cold rolled steel sleeve device 100 shown in FIG. 102 is a perspective view, and FIG. 4 is a perspective view showing the strip supply portion 104 of the cold rolled steel sleeve device 100 shown in FIG. 2.

As shown in Figures 2 to 4, the cold rolled steel sleeve device 100 according to a preferred embodiment of the present invention is tension reels (101, 101a), strip conveying portion 102, strip guide portion 103, and Including a strip supply portion 104, the hot rolled and then annealed strip (S) wound on the feed reel 20 while supplying to the rolling mill 10, the cold rolled from the rolling mill 10 (S) ) Is stably wound around the tension reel unit 101.

The tension reel portions 101 and 101a are located at both sides of the rolling mill 10 and wind strips S discharged from the rolling mill 10. A groove 111 corresponding to the end of the strip S is formed in at least one of the tension reel portions 101 and 101a. 2 illustrates an example in which the groove 111 is formed in the tension reel unit 101 positioned on the right side of the rolling mill 10 based on FIG. 2.

The groove 111 is formed along the length of the tension reel portion 101. In the state where the end portion of the strip S is inserted into the groove 111, the strip S is wound around the tension reel portion 101.

The strip conveying part 102 is located between the rolling mill 10 and the tension reel part 101. The strip conveyance unit 102 transfers the end portion of the strip S discharged from the rolling mill 10 toward the tension reel unit 101 to be inserted into the groove 111 of the tension reel unit 101. In addition, the strip transfer unit 102 includes a transfer table 121, a table cylinder 123, a transfer press roll 125, a press roll guide 127, and a guide cylinder 129.

The transfer table 121 forms a guide surface facing the tension reel portion 101 between the rolling mill 10 and the tension reel portion 101, and the end of the strip S is formed on the transfer table 121 of the tension reel portion 101. Guided to groove 111.

The table cylinder 123 is connected to the transfer table 121 and inclines the transfer table 121 toward the tension roll 101. At this time, the inclination of the transfer table 121 is adjusted according to the position of the groove 111 formed in the tension roll 101. Thus, the end portion of the strip S may be inserted into the groove 111 of the tension reel portion 101 along the transfer table 121 whose slope is set by the table cylinder 123.

The transfer press roll 125 is positioned between the transfer table 121 and the tension reel portion 101. In the state where the end portion of the strip S is inserted into the groove 111 of the tension reel portion 101, the transfer pressure roll 127 presses the lower surface of the strip S passing through the transfer table 121. Therefore, the strip S may be wound to be in close contact with the outer circumferential surface of the tension reel unit 101 in the unfolded state in a state where the end portion of the strip S is inserted into the groove 111 of the tension reel unit 101.

The press roll guide 127 connects the transfer table 121 and the transfer press roll 125. The press roll guide 127 guides the transfer press roll 125 so that the bottom surface of the strip S is pressurized by the transfer press roll 125 while being fixed to the transfer table 121. In addition, the pressure by the transfer pressure roll 125 acting on the lower surface of the strip (S) can be changed by changing the length of the pressure roll guide 127.

The guide cylinder 129 is connected to the pressure roll guide 127, and maintains the length of the pressure roll guide 127 by changing. For this reason, the feed pressure roll 125 is to press the lower surface of the strip (S) at a constant pressure.

The strip induction part 103 is located between the strip conveyance part 102 and the rolling mill 101, and guides the end part of the strip S discharged from the rolling mill 10 onto the strip conveyance part 102. As shown in FIG. In addition, the strip induction part 103 includes an induction deflector roll 131, a pressure roll 133, and a pressure cylinder 135.

Induction deflector roll 131 is located on the lower surface of the strip (S) discharged from the rolling mill 10 to transport the strip (S). The pressing roll 133 presses the end of the strip S passing through the induction deflector roll 131.

The pressure cylinder 135 is connected to the pressure roll 133, the pressure roll 133 to press the end of the strip (S). The press roll 133 guides the end of the strip S onto the strip conveying part 102 by the pressurizing cylinder 135, so that the end of the strip S is conveyed along the strip conveying part 102. At this time, the pressure cylinder 135 is rotated toward the tension reel portion 101, the length can be changed so that the pressure roll 133 presses the end of the strip (S) at a constant pressure.

The tension reel unit 101, the strip conveying unit 102 and the strip guide unit 103 as described above are combined, so that when the strip S is wound on the tension reel unit 101, the surface of the strip S is damaged by external force. It can prevent.

The strip supply part 104 supplies the end part of the strip S unwound in the state wound around the supply reel 20 to the rolling mill 10. The strip feeder 104 also includes a feed deflector roll 141, a feed table 143, and a table guide 145.

The supply deflector roll 141 is positioned between the induction deflector roll 131 and the supply reel 20. The strip S released from the supply reel 20 is transferred to the rolling mill 10 by the supply deflector roll 141 and the induction deflector roll 131. At this time, the induction deflector roll 131 rotates in the opposite direction as when conveying the strip S discharged from the rolling mill 10.

The feed table 143 is located between the guide deflector roll 131 and the feed deflector roll 141. The end of strip S is led to rolling mill 10 along feed table 143. That is, the feed table 143 provides the conveying path of the end of the strip S to the rolling mill 10. In addition, the upper and lower cylinders 143a are connected to the supply table 143, and the upper and lower cylinders 143a rotate the supply table 143 in the vertical direction, and the supply table 143 moves the induction deflector roll 131 as necessary. And is positioned along the supply deflector roll 141.

The table guide 145 is connected to the inner surface of the insertion space by the elastic member 145a in the state of being inserted into the insertion space of the one end surface of the supply table 143. The table guide 145 may further protrude to contact the induction deflector 131 due to the deformation of the elastic member 145a, and may be further inserted in contact with the induction deflector 131. That is, the table guide 145 is in close contact with the induction deflector 131. Thus, when the end portion of the strip S is guided toward the rolling mill 10 on the feed table 143, it is not inserted between the table guide 145 and the induction deflector roll 131 and is stably guided deflector roll 131. ) Can be supplied to the rolling mill 10.

The strip supply unit 104 as described above stably strips S even if the distance between the supply reel 20 and the supply deflector roll 141 and the distance between the induction deflector roll 131 and the supply deflector rolls 141 are changed. ) Is supplied to the rolling mill 10.

On the other hand, it is disclosed that the supply deflector roll 141 of this embodiment transfers the strip S wound on the supply reel 20 to the rolling mill 10 in combination with the induction deflector 131. However, a second supply deflector roll (not shown) is located between the rolling mill 10 and the supply deflector roll 141 and may also replace the function of the induction deflector 131. In this case, the supply deflector roll 141 is called a first supply deflector roll.

The second supply deflector roll rotates in the same direction as the first supply deflector roll 141 to transfer the end portion of the strip S passing through the first supply deflector roll 141 to the rolling mill 10. In addition, the feed table 143 is located between the first feed deflector roll 141 and the second feed deflector roll, and the table guide 145 inserted into the insertion space of one end of the feed table 145 is the second feed. It adheres to the deflector roll.

While the present invention has been described in connection with certain exemplary embodiments, it will be understood by those skilled in the art that various changes may be made without departing from the scope of the present invention. In addition, the description in parentheses in the description of the claims is intended to prevent obscuration of the description, and the scope of the claims of the claims should be construed to include all the items in parentheses.

10: rolling mill 20: feeding reel
100: cold rolled steel sleeve device
101: tension reel portion 111: groove
102: strip transfer unit 121: transfer table
123: table cylinder 125: feed pressure roll
127: pressure roll guide 129: guide cylinder
103: strip guide portion 131: guide deflector roll
133: pressure roll 135: pressure cylinder
104: strip supply unit 141: supply deflector roll
143: Supply Table 145: Table Guide

Claims (11)

In the cold rolled steel sleeve device for supplying to the rolling mill while unwinding the strip wound on the feed reel, winding the strip discharged by cold rolling from the rolling mill,
A pair of tension reel portions located on both sides of the rolling mill and wound with the strip discharged from the rolling mill (a groove corresponding to an end of the strip is formed in at least one tension reel portion of the tension reel portions); And
Located between the rolling mill and the at least one tension reel portion, including a strip conveying portion for transferring so that the end of the strip discharged from the rolling mill is inserted into the groove of the at least one tension reel portion,
The strip conveying unit,
A transfer table forming a guide surface between the rolling mill and the at least one tension reel portion, and leading the end of the strip to a groove of the at least one tension reel portion;
A transfer press roll positioned between the transfer table and the at least one tension reel portion and pressurizing a lower surface of the strip passing through the transfer table with an end portion of the strip inserted into a groove of the at least one tension reel portion;
A pressure roll guide connecting the transfer table and the transfer press roll to guide the transfer press roll to press the bottom surface of the strip by the transfer press roll; And
Cold rolling steel sleeve device is connected to the pressure roll guide, further comprising a guide cylinder for changing and maintaining the length of the pressure roll guide so that the lower surface of the strip is pressurized by a constant pressure by the transfer pressure roll. .
delete delete The method of claim 1, wherein the cold rolled steel sleeve device,
And a strip induction part for guiding an end portion of the strip discharged from the rolling machine between the rolling mill and the strip conveying part to the strip conveying part.
The method of claim 4, wherein the strip guide portion,
An induction deflector roll positioned on a lower surface of the strip discharged from the rolling mill to transfer the strip to the strip transfer unit;
A press roll for pressing an end portion of the strip passing through the induction deflector roll; And
Cold rolling is characterized in that it is connected to the pressure roll, the pressurizing cylinder to press the pressure roll so that the end portion of the strip is pressurized to a constant pressure so that the pressure roll guides the end portion of the strip to the strip conveying portion. Steel sleeve device.
The method of claim 5, wherein the cold rolled steel sleeve device,
Cold rolled steel sleeve device characterized in that it further comprises a strip supply for supplying the end of the strip released from the feed reel to the rolling mill.
The method of claim 6, wherein the strip supply unit,
A feed deflector roll, positioned between the induction deflector roll and the feed reel, for transferring an end portion of the strip unwound from the feed reel to the rolling mill; And
And a feed table positioned between the induction deflector roll and the feed deflector roll to guide the end of the strip towards the rolling mill.
The method of claim 7, wherein the strip supply unit,
And a table guide connected to an inner surface of the insertion space by an elastic member in a state of being inserted into the insertion space of the one end surface of the supply table, and in close contact with the induction deflector roll.
The method of claim 1, wherein the cold rolled steel sleeve device,
Cold rolled steel sleeve device characterized in that it further comprises a strip supply for supplying the end of the strip released from the feed reel to the rolling mill.
The method of claim 9, wherein the strip supply unit,
A first supply deflector roll, positioned between the rolling mill and the feed reel, for transferring an end of the strip unwound from the feed reel to the rolling mill;
A second supply deflector roll, positioned between the rolling mill and the first supply deflector roll, for transferring an end of the strip passing through the first supply deflector roll to the rolling mill; And
And a feed table, positioned between the first feed deflector roll and the second feed deflector roll, to guide the end of the strip towards the rolling mill.
The method of claim 10, wherein the strip supply unit,
Cold rolled steel sleeve further comprises a table guide connected to the inner surface of the insertion space by the elastic member in the state inserted into the insertion space of the one end surface of the supply table, and in close contact with the second supply deflector roll Device.

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