KR101256515B1 - Roll having function for anti-snaking - Google Patents
Roll having function for anti-snaking Download PDFInfo
- Publication number
- KR101256515B1 KR101256515B1 KR20100131449A KR20100131449A KR101256515B1 KR 101256515 B1 KR101256515 B1 KR 101256515B1 KR 20100131449 A KR20100131449 A KR 20100131449A KR 20100131449 A KR20100131449 A KR 20100131449A KR 101256515 B1 KR101256515 B1 KR 101256515B1
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- KR
- South Korea
- Prior art keywords
- roll body
- strip
- slider
- roll
- center
- Prior art date
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
A roll device having a meandering prevention function is formed in which the surface of the roll body has a convex curved crown structure and a restoring force that pushes the strip toward the center portion upon contact with the strip acts to suppress the meandering of the strip.
To this end, the present invention, in the roll device in contact with the strip 30 to advance the strip in a predetermined direction, both ends are coupled to each of the bearing block 111, the rotating shaft 110 is rotatably installed; The center is fitted to the rotation shaft 110 and rotates integrally with the rotation shaft 110, and the outer diameter gradually decreases from the center portion 121 forming the width direction toward the end portions 122 on both sides, so that the outer diameter is gradually reduced. Roll body 120 having a surface of the crown structure having a convex shape of the center portion 121; including, the moving unit 200 between the center portion 121 and the end portion 122 of the roll body 120 Grooves 130 having a predetermined predetermined width and length are formed, respectively, wherein the moving unit 200 includes a guide portion 210 fitted to an outer circumferential surface of the rotating shaft 110 and the guide portion 210. The slider 220 which is fitted to the outer circumferential surface and slides along the longitudinal direction of the guide part 210 and is coupled via the connecting arm 235 on the outer circumferential surface of the slider 220 and the surface of the roll body 120 has a radius of curvature. On the moving member 230 and the guide portion 210 disposed in the groove 130 to match the Restoring spring 240 is provided between the end portion 122 and the slider 220 of the roll body 120 to provide a restoring force when the slider 220 is pushed toward the end portion 122 of the roll body 120 and A clearance holding spring is installed between the center portion 121 and the slider 220 of the roll body 120 on the guide portion 210 to maintain a predetermined clearance between the moving member 230 and the center portion 121 ( 250, the rolling force of the center portion 121 is greater than the end portion 122 of the roll body 120 when the roll body 120 comes into contact with the strip 30 so that the meandering does not occur. 30) is characterized in that to proceed in the center direction.
Description
The present invention relates to a roll apparatus having a meandering prevention function, and more particularly, the surface of the roll body has a convex curved crown structure, and the restoring force acts to push the strip toward the center when contacted with the strip. The present invention relates to a roll apparatus having a meandering function to prevent meandering of the strip.
DRM process of rolling process and plating process consists of intermittent process, not continuous process like PCM. Due to this, there is no welder connecting the coils to the coils, and thus, a tension-free period is inevitable while the coils progress from the payoff reel to the tension reel.
In general, CPC (Center Position Control), a facility to prevent meandering of the strip, only works when the tension is "ON" after the strip has been mailed through the entire line (from the reel to the tension reel).
Due to the limitations of the installation, the coil may be unwound due to the meandering of the strip during initial mailing, and thus, when the coil is transported by the crane, the protruded part may be damaged or the packaging may be torn.
1 is a view showing a state that the strip proceeds by the press roll and the bridal roll, Figure 2 is a view showing a state that the meandering of the strip due to the single wear of the conventional press roll.
1 and 2, the
The uneven wear of the
Therefore, when the
Referring to Figure 2, the left side portion of the
Therefore, the
As described above, the meandering of the strip starting from the
The present invention is to solve the problems as described above, the object is to improve the structure of the press roll which is the root cause of the meandering occurrence of the meandering of the strip in the DRM process so that the strip meandering contact Even if the press roll itself is to guide the strip to the center portion to prevent meandering.
The present invention to solve the above object,
In the roll apparatus for contacting the strip to advance the strip in a predetermined direction,
A rotating shaft having both ends coupled to the respective bearing blocks to be rotatable;
A roll body having a crown structure having a center surface fitted to the rotating shaft and integrally rotating with the rotating shaft, and having an outer diameter gradually decreasing from the center portion forming the width direction toward the end portions on both sides, the center portion being convex than the end portion. Including,
Grooves each having a predetermined predetermined width and length having a moving unit are formed between the center portion and the end portion of the roll body. The moving unit includes a guide portion fitted to an outer circumferential surface of the rotating shaft and an outer circumferential surface of the guide portion. A slider sliding along the longitudinal direction of the part and a connecting arm on an outer circumferential surface of the slider, the surface of which is disposed in the groove so as to match the radius of curvature of the roll body and an end portion of the roll body on the guide part. And a resilient spring provided between the slider and the slider to provide a restoring force when the slider is pushed toward the end of the roll body, and between the center part of the roll body and the slider on the guide part to maintain a constant clearance between the moving member and the center part. Including clearance holding springs,
When the roll body is in contact with the strip, the pressing force of the center portion is greater than that of the end portion of the roll body, so that no stripping occurs so that the strip proceeds in the center direction.
The moving unit may be elastically installed on the rotating shaft to induce the strip to proceed in the center direction when contacted with the strip.
The rotation shaft is characterized in that the stopper for preventing the guide portion and the restoring spring is pushed toward the end of the roll body.
The moving member is formed in an annular ring shape, the connection arm is provided with at least two or more characterized in that it is arranged to have a constant phase angle between the moving member and the slider.
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According to the present invention, since the roll body has a curved crown structure with a convex center portion, the rolling force of the center portion is greater than that of the end portion upon contact with the strip, so that the strip is not biased to either side. As it proceeds in the direction, there is a unique effect that the meandering of the strip is suppressed accordingly.
In addition, even when the strip and the roll body is in initial meandering contact, since the restoring force in the direction of the center portion is applied to the strip by the moving unit installed in the roll body, the strip is gradually guided toward the center portion to suppress meandering.
1 is a view showing a state that the strip proceeds by the press roll and the bridal roll,
Figure 2 is a view showing a state in which meandering of the strip due to the single wear of the conventional press roll,
3 is a cross-sectional view showing the structure of a roll apparatus having a meandering prevention function according to the present invention;
Figure 4 is a longitudinal sectional view for showing the structure of the moving unit according to the present invention,
5 is a working state of the roll apparatus according to the present invention.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Referring to the roll apparatus according to the present invention with reference to Figure 3, the present invention largely comprises a rotating
Both ends of the
The rotating
On the other hand, the
For reference, in the related art, since the
However, in the present invention, as shown in FIG. 3, a portion forming both ends of the
That is, since the
If the reduction force in contact with the
Here, the diameter difference between the
On the other hand, the
When the edge portion of the
Therefore, even when the
The
In addition, the
Here, since the moving
As shown in FIG. 5, when the
As such, when the initial meandering contact with the
That is, even when the edge portion of the
As shown in FIGS. 3 and 4, the moving
The
The
In addition, the moving
Even when the moving
Here, the moving
In the embodiment of the present invention, the connecting
On the other hand, the
Therefore, when the
In addition, the
When the moving
In addition, the
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the scope of the invention is not limited to the disclosed exemplary embodiments. It is to be understood that the invention is not limited thereto.
110: rotation axis 120: roll body
121: center portion 122: end portion
130: groove 200: moving unit
210: guide portion 220: slider
230: moving member 240: restoring spring
250: play oil holding spring 260: stopper
Claims (5)
Rotating shaft 110 is installed so that both ends are rotatably coupled to each bearing block 111;
The center is fitted to the rotation shaft 110 and rotates integrally with the rotation shaft 110, and the outer diameter gradually decreases from the center portion 121 forming the width direction toward the end portions 122 on both sides, so that the outer diameter is gradually reduced. It includes; the center portion 121 has a roll body 120 having a surface of the crown structure having a convex shape;
Between the center portion 121 and the end portion 122 of the roll body 120, grooves 130 having a predetermined width and length in which the moving unit 200 is installed are formed, respectively, and the moving unit 200 The guide part 210 fitted to the outer circumferential surface of the rotating shaft 110 and the slider 220 and the slider 220 slid along the longitudinal direction of the guide part 210 are fitted to the outer circumferential surface of the guide part 210. Roll body on the moving member 230 and the guide portion 210 which are coupled to the outer peripheral surface via a connecting arm 235 and the surface is arranged in the groove 130 to match the radius of curvature of the roll body 120 Restoring spring 240 and the guide is installed between the end portion 122 and the slider 220 of 120 to provide a restoring force when the slider 220 is pushed toward the end portion 122 of the roll body 120 The moving member 23 is installed between the center part 121 of the roll body 120 and the slider 220 on the part 210. Including a clearance holding spring 250 to maintain a constant clearance between 0) and the center portion 121,
When the roll body 120 is in contact with the strip 30, the rolling force of the center portion 121 is greater than that of the end portion 122 of the roll body 120, so that the meandering does not occur and the strip 30 is in the center direction. Roll device having a meandering function, characterized in that to proceed.
The moving unit 200 is elastically installed on the rotating shaft 110, the roll device having a meandering prevention function, characterized in that the strip 30 is guided to proceed in the center direction when the contact with the strip (30).
The rotation shaft 110 has a meandering prevention function, characterized in that the stopper 260 is installed to prevent the guide portion 210 and the restoring spring 240 is pushed toward the end portion 122 of the roll body 120 Roll device.
The moving member 230 is formed in an annular ring shape, the connecting arm 235 is provided with at least two or more characterized in that it is arranged to have a constant phase angle between the moving member 230 and the slider 220 Roll device with meandering function.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100131449A KR101256515B1 (en) | 2010-12-21 | 2010-12-21 | Roll having function for anti-snaking |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR20100131449A KR101256515B1 (en) | 2010-12-21 | 2010-12-21 | Roll having function for anti-snaking |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20120070052A KR20120070052A (en) | 2012-06-29 |
KR101256515B1 true KR101256515B1 (en) | 2013-04-22 |
Family
ID=46688005
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR20100131449A KR101256515B1 (en) | 2010-12-21 | 2010-12-21 | Roll having function for anti-snaking |
Country Status (1)
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KR (1) | KR101256515B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116586426A (en) * | 2023-06-08 | 2023-08-15 | 江苏甬金金属科技有限公司 | Steel strip rolling device with anti-offset function |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05192706A (en) * | 1992-01-20 | 1993-08-03 | Nkk Corp | Crown roll |
JPH05237541A (en) * | 1992-02-26 | 1993-09-17 | Sumitomo Metal Ind Ltd | Crown adjusting roll |
JPH0688068B2 (en) * | 1988-12-09 | 1994-11-09 | 住友金属工業株式会社 | Crown roll |
-
2010
- 2010-12-21 KR KR20100131449A patent/KR101256515B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0688068B2 (en) * | 1988-12-09 | 1994-11-09 | 住友金属工業株式会社 | Crown roll |
JPH05192706A (en) * | 1992-01-20 | 1993-08-03 | Nkk Corp | Crown roll |
JPH05237541A (en) * | 1992-02-26 | 1993-09-17 | Sumitomo Metal Ind Ltd | Crown adjusting roll |
Also Published As
Publication number | Publication date |
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KR20120070052A (en) | 2012-06-29 |
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