CN214160881U - Reversible rolling system of high yield - Google Patents
Reversible rolling system of high yield Download PDFInfo
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- CN214160881U CN214160881U CN202022363605.0U CN202022363605U CN214160881U CN 214160881 U CN214160881 U CN 214160881U CN 202022363605 U CN202022363605 U CN 202022363605U CN 214160881 U CN214160881 U CN 214160881U
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- reversible rolling
- decoiler
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Abstract
The utility model relates to a reversible rolling system of high lumber recovery, including coil of strip decoiler, link up in proper order along the direction of keeping away from this coil of strip decoiler in one side of coil of strip decoiler and arrange entry coiling machine, reversible rolling mill and export coiling machine, coil of strip decoiler can just reverse, link up in proper order along the direction of keeping away from this coil of strip decoiler at the opposite side of coil of strip decoiler and arrange first clamp and send straightener, welding machine, leading and take the baffle, leading the area to cut, the second presss from both sides and send straightener and leading and take the decoiler. In the utility model, the loss of the yield of the strip steel between the outlet coiling machine and the rolling mill can be reduced by welding the leading strip on the outer ring of the steel coil; the steel coil uncoiler is designed to rotate forward and backward, and the strip steel rolling unit and the lead welding unit are respectively arranged on two sides of the steel coil uncoiler, so that the system is small in occupied area, the lower-coiled strip steel can be subjected to lead welding operation while the upper-coiled strip steel is rolled, and the utilization rate of equipment is improved; the extra production process caused by adding a welding lead belt unit outside the wire is avoided, and the primary investment cost and the production cost are saved.
Description
Technical Field
The utility model belongs to the technical field of the cold rolling of slab band, concretely relates to reversible rolling system of high yield.
Background
With the rapid increase of domestic economy, the market demand for cold-rolled strip steel is increasingly expanded, and the method brings benign stimulation to the development of the production capacity of the cold-rolled strip steel. The production of cold-rolled strip steel can select reversible rolling or continuous rolling mode, and the reversible rolling mill has the advantages of small investment, large production flexibility and the like, so that the method is suitable for the production conditions of various types, small batches or large alloy steel proportion, and the reversible rolling mill is suitable for producing stainless steel, silicon steel and other special steel.
The rolling can be carried out only after tension is established because two or three turns of strip steel need to be wound on an outlet coiling machine before rolling by the reversible rolling mill, so that strip steel with certain lengths at the head and the tail of the strip steel cannot be rolled, and the unit yield is low.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a reversible rolling system of high yield can solve prior art's part defect at least.
The utility model relates to a reversible rolling system of high lumber recovery, including coil of strip decoiler one side of coil of strip decoiler links up in proper order along the direction of keeping away from this coil of strip decoiler and arranges entry coiling machine, reversible rolling mill and export coiling machine, coil of strip decoiler can just reverse the opposite side of coil of strip decoiler links up in proper order along the direction of keeping away from this coil of strip decoiler and arranges first clamp and send straightening machine, welding machine, leading the area baffle, leading the area and cut, the second clamp send straightening machine and lead the area decoiler.
As one embodiment, a third pinch straightener is arranged between the steel coil uncoiler and the inlet coiler, and a transition guide plate for assisting in strip threading is arranged on the outlet side of the third pinch straightener.
In one embodiment, a turning pinch roll is provided between the entry coiler and the reversible rolling mill and between the reversible rolling mill and the exit coiler, respectively.
As an embodiment, a slitting shear is arranged between the reversible mill and its entry-side turn pinch roll.
In one embodiment, two sets of strip pressing plates are respectively arranged on two sides of the reversible rolling mill, and the two sets of strip pressing plates are arranged adjacent to the reversible rolling mill.
The utility model discloses following beneficial effect has at least:
the reversible rolling system provided by the utility model can reduce the loss of the yield of the strip steel between the outlet coiling machine and the rolling mill by welding the leading strip on the outer ring of the steel coil; the steel coil uncoiler is designed to rotate forward and backward, and the strip steel rolling unit and the lead welding unit are respectively arranged on two sides of the steel coil uncoiler, so that the system is small in occupied area, the lower-coiled strip steel can be subjected to lead welding operation while the upper-coiled strip steel is rolled, and the utilization rate of equipment is improved; the extra production process caused by adding a welding lead belt unit outside the wire is avoided, and the primary investment cost and the production cost are saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of an apparatus composition of a reversible rolling system according to an embodiment of the present invention;
fig. 2-5 are schematic diagrams of a production process of a reversible rolling system provided by an embodiment of the present invention; wherein:
FIG. 2 is a schematic view of a second coil of steel being welded with a leader tape when a first coil of steel is rolled;
FIG. 3 is a schematic view of the threading of the second coil of steel tape head;
FIG. 4 is a schematic view of a second steel coil during tail-flick rolling;
fig. 5 is a schematic diagram of a third coil of steel strip welding lead when the second coil of steel strip is rolled.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1-5, the embodiment of the utility model provides a reversible rolling system of high lumber recovery, including coil of strip decoiler 1 one side of coil of strip decoiler 1 links up in proper order along the direction of keeping away from this coil of strip decoiler 1 and arranges entry coiling machine 23, reversible rolling mill 27 and export coiling machine 29, coil of strip decoiler 1 can just reverse the opposite side of coil of strip decoiler 1 links up in proper order along the direction of keeping away from this coil of strip decoiler 1 and arranges first pinch straightener 31, welding machine 32, leading strip baffle 33, leading strip scissors 34, second pinch straightener 35 and leading strip decoiler 36.
The steel coil uncoiler 1 is a conventional device in the field, and the specific structure thereof is not described herein. The entry coiler 23, the reversing mill 27, and the exit coiler 29 constitute a strip rolling mill train, and the first pinch straightener 31, the welding machine 32, the strip guide 33, the strip shear 34, the second pinch straightener 35, and the strip uncoiler 36 constitute a strip welding mill train; because the steel coil uncoiler 1 can rotate forward and backward, the steel coil uncoiler 1 can uncoil a steel coil to the strip steel rolling mill group and can also uncoil the steel coil to the welding leading strip unit, and a corresponding uncoiling guide plate is generally required to be configured to guide an uncoiled strip head to a corresponding equipment inlet.
The reversible rolling of the strip can be achieved by the cooperation of the entry-coiler 23, the reversing mill 27 and the exit-coiler 29, which are conventional in the art and will not be described in detail herein. Further preferably, as shown in fig. 1-5, a third pinch straightener 21 is arranged between the steel coil uncoiler 1 and the inlet coiler 23, and the outlet side of the third pinch straightener 21 is provided with a transition guide plate 22 for assisting in strip threading; the third pinch straightener 21 is provided with a pinch moving function, so that strip steel can be conveniently uncoiled to a strip steel rolling unit, the running efficiency of the system in threading is improved, and the third pinch straightener has a straightening function and a centering function, so that the strip heads and other parts can be straightened and centering and deviation correction can be carried out in the running process of the strip steel, and the rolling quality and the rolling yield of the strip steel are improved; the transition guide plate 22 may be a swing type guide plate, and the transition guide plate 22 is lifted to assist threading when rolling the coil-through strip, and the transition guide plate 22 swings down when rolling the coil-through strip.
In one embodiment, as shown in fig. 1-5, an inlet steering pinch roll 24 is arranged between the inlet coiler 23 and the reversible rolling mill 27, the inlet steering pinch roll 24 not only can improve the threading efficiency of the system, but also can tension the strip steel to further improve the rolling quality of the strip steel, and correspondingly, the inlet coiler 23 can be arranged below the inlet of the steering pinch roll; in a preferred embodiment, the entry coiler 23 is also adapted to clamp and straighten the strip during the tail flick of the first, equal odd pass and to clamp the strip during the strip pass of the second, equal even pass and feed the strip into the jaws of the entry coiler 23. Similarly, an exit turn pinch roll 28 is also disposed between the reversing mill 27 and the exit coiler 29, and also serves to increase the efficiency of the system threading and improve the rolling quality of the strip, as described above, and also serves to pinch the strip during the first pass and feed the strip into the nip of the exit coiler 29. Alternatively, the inlet coiler 23 and the outlet coiler 29 are arranged on the same horizontal plane, and the two groups of turning pinch rolls on the inlet and outlet sides of the reversible rolling mill 27 are preferably arranged on the same horizontal plane, and meanwhile, the two groups of turning pinch rolls and the steel wire passing through the reversible rolling mill 27 are positioned on the same horizontal plane.
It is further preferred, as shown in fig. 1 to 5, that a slitting shear 25 is arranged on the entry side of the reversing mill 27, which can be used for cutting off the welded leader strip after rolling is completed, but can also be used for cutting off the strip head. When the above-mentioned inlet turn pinch roll 24 is arranged, the slitting shear 25 is preferably arranged between the reversing mill 27 and the inlet turn pinch roll 24.
In the above-described welding lead strip unit, the lead strip uncoiler 36 is used for uncoiling the lead strip coil 400; the second pinch straightener 35 is positioned at the outlet side of the leading strip uncoiler 36 and is used for threading a leading strip head, carrying and moving the leading strip head, straightening and centering; the leading tape scissors 34 are arranged on the outlet side of the second pinch straightener 35 and used for shearing a leading tape head which is warped upwards when a tape is threaded, so that the leading tape can enter the welding machine 32 conveniently, and the leading tape is cut after being welded with the rolling tape head. The tape guide plate 33 is located at the outlet side of the tape cutter 34, the tape guide plate 33 is located at a standby position when the tape is cut, the cut waste can slide into a waste material vehicle, and the tape guide plate 33 swings to a working position when the tape is threaded so as to facilitate the threading of the tape. The welder 32 is used to weld the head of the steel coil to be rolled with the head of the leader coil 400. The first pinch straightener 31 is located on the outlet side of the welding machine 32 and is used for threading, pinch moving, straightening and centering the rolled tape coiling head during the tape welding operation.
Further preferably, as shown in fig. 1 to 5, the reversible rolling mill 27 is provided with strip pressing plates 26 on both sides, and two sets of strip pressing plates 26 are arranged adjacent to the reversible rolling mill 27. The strip steel pressing plate 26 on the inlet side of the reversible rolling mill 27 is used for clamping strip steel during the tail flicking of the first pass and the like in odd rolling passes to provide back tension; the strip press plate 26 on the outlet side of the reversing mill 27 is used for clamping the strip during the tail flicking of the second even rolling pass and the like to provide back tension.
The production method of the reversible rolling system with high yield comprises the following steps:
(1) as shown in fig. 2, in the process of rolling the first coil of steel 100 by the strip rolling mill set, the coil uncoiler 1 introduces the head of the second coil of steel 200 into the welding leader set to weld the leader, and the length of the welding leader is preferably such that the weld passes through the rolling mill and is wound on the outlet coiler 29 for two to three turns;
(2) the steel coil uncoiler 1 reversely rotates to withdraw the tape head of the second steel coil 200 and the welded leading tape;
(3) the steel coil uncoiler 1 rotates positively to pass the strip head of the second steel coil 200 welded with the leading strip to the third pinch straightener 21 to wait;
(4) the first coiled steel coil 100 is unloaded, the coil uncoiling machine 1, the third pinch straightener 21, the outlet turning pinch roll 28 and the outlet coiler 29 are in low-speed combined transmission to send the strip head of the second coiled steel coil 200 into the outlet coiler 29, and tension is built after two or three coils are coiled, as shown in fig. 3;
(5) accelerating the speed of the reversible rolling unit to the rolling speed to perform first pass rolling;
(6) when a plurality of circles remain on the steel coil uncoiler 1, the rolling mill slows down;
(7) the strip tail of the second steel coil 200 leaves the steel coil uncoiler 1, the third pinch straightener 21 presses down, the inlet steering pinch roll 24 is pressed to a straightening position, and the inlet strip steel press plate 26 presses down to build the tension for tail-flick rolling until the strip tail stops to the slitting shear 25, as shown in fig. 4;
(8) the third pinch straightener 21, the inlet turning pinch roll 24 and the inlet strip steel press plate 26 are lifted, tension is built between the outlet coiler 29 and the rolling mill for strip threading rolling until the tail of the second coil of steel 200 is coiled on the inlet coiler 23 for two to three turns, as shown in fig. 5;
(9) the reversible rolling mill 27 is accelerated to the rolling speed for the second pass of rolling; meanwhile, a third steel coil 300 is arranged on the steel coil uncoiler 1, and a leading belt unit is welded while the second steel coil 200 is rolled to weld a leading belt on the outer ring belt head of the third steel coil 300;
(10) and sequentially rolling the subsequent passes according to the process setting, wherein each pass can roll the strip tail.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a reversible rolling system of high lumber recovery, includes the coil of strip decoiler one side of coil of strip decoiler links up in proper order along the direction of keeping away from this coil of strip decoiler and arranges entry coiling machine, reversible rolling mill and export coiling machine, its characterized in that: the steel coil uncoiler can rotate forward and backward, and a first pinch straightener, a welding machine, a leading belt guide plate, a leading belt shear, a second pinch straightener and a leading belt uncoiler are sequentially arranged on the other side of the steel coil uncoiler in a linked mode along the direction far away from the steel coil uncoiler.
2. High-yield reversible rolling system, according to claim 1, characterized in that: and a third pinch straightener is arranged between the steel coil uncoiler and the inlet coiler, and a transition guide plate for assisting in strip penetration is arranged on the outlet side of the third pinch straightener.
3. High-yield reversible rolling system, according to claim 1, characterized in that: and steering pinch rolls are respectively arranged between the inlet coiling machine and the reversible rolling mill and between the reversible rolling mill and the outlet coiling machine.
4. High-yield reversible rolling system, according to claim 3, characterized in that: a slitting shear is arranged between the reversible mill and its entry-side turn pinch roll.
5. High-yield reversible rolling system, according to claim 1, characterized in that: and strip steel pressing plates are respectively arranged on two sides of the reversible rolling mill, and two groups of strip steel pressing plates are arranged adjacent to the reversible rolling mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022363605.0U CN214160881U (en) | 2020-10-22 | 2020-10-22 | Reversible rolling system of high yield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022363605.0U CN214160881U (en) | 2020-10-22 | 2020-10-22 | Reversible rolling system of high yield |
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| CN214160881U true CN214160881U (en) | 2021-09-10 |
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| CN202022363605.0U Active CN214160881U (en) | 2020-10-22 | 2020-10-22 | Reversible rolling system of high yield |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011876A (en) * | 2021-10-25 | 2022-02-08 | 鞍钢重型机械有限责任公司 | Production process of magnesium alloy coiled material capable of realizing repeated use of strip head and strip tail |
-
2020
- 2020-10-22 CN CN202022363605.0U patent/CN214160881U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114011876A (en) * | 2021-10-25 | 2022-02-08 | 鞍钢重型机械有限责任公司 | Production process of magnesium alloy coiled material capable of realizing repeated use of strip head and strip tail |
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