CN114888082A - Combined rolling system for strip - Google Patents

Combined rolling system for strip Download PDF

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Publication number
CN114888082A
CN114888082A CN202210524325.4A CN202210524325A CN114888082A CN 114888082 A CN114888082 A CN 114888082A CN 202210524325 A CN202210524325 A CN 202210524325A CN 114888082 A CN114888082 A CN 114888082A
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CN
China
Prior art keywords
strip
rolling
assembly
roll
rolling mill
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210524325.4A
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Chinese (zh)
Inventor
赵纪凯
董春光
梅如敏
丁冬生
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Changzhou Baoling Heavy and Industrial Machinery Co Ltd
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Changzhou Baoling Heavy and Industrial Machinery Co Ltd
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Application filed by Changzhou Baoling Heavy and Industrial Machinery Co Ltd filed Critical Changzhou Baoling Heavy and Industrial Machinery Co Ltd
Priority to CN202210524325.4A priority Critical patent/CN114888082A/en
Publication of CN114888082A publication Critical patent/CN114888082A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
    • C21D8/0226—Hot rolling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
    • C21D8/0247—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment
    • C21D8/0263—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the heat treatment following hot rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B2001/225—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length by hot-rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B15/0007—Cutting or shearing the product
    • B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B2015/0057—Coiling the rolled product
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)

Abstract

The invention discloses a composite rolling system for seamless strips, which comprises a plurality of uncoilers for releasing the strips; the heating furnaces are used for heating the strips released by the uncoilers, and one heating furnace is arranged at the downstream of each uncoiler; a rolling mill for rolling the strip fed into the rolling mill; an annealing furnace located downstream of the rolling mill for annealing the strip exiting the rolling mill; the cooling furnace is positioned at the downstream of the annealing furnace and used for cooling the strip output by the annealing furnace; the coiling machine is positioned at the downstream of the cooling furnace and coils the cooled strip; and the shearing device is positioned between the cooling furnace and the coiling machine, and the coiling machine shears the strip after finishing coiling the single coil of strip. The invention has the advantages of saving production time and improving production efficiency.

Description

Combined rolling system for strip
Technical Field
The invention relates to the technical field of strip rolling, in particular to a composite rolling system for strips.
Background
It is known in the rolling mill manufacturing industry that conventional rolling mills can only thin a strip of a thicker material, and the use of the rolled strip is limited. For example, in order to have light weight and high heat transfer performance of aluminum and high strength and corrosion resistance of stainless steel, a layer of stainless steel strip or other metal strips needs to be compounded on both sides of the aluminum strip, which cannot be realized by using a traditional rolling mill. Therefore, the strip rolled by the traditional rolling mill can only meet the requirements of the strip made of a single material and can not meet the requirements of the strip made of a composite material, and the application range is not wide.
CN2822812Y discloses a warm compound rolling, it includes decoiler, compression roller mill, rolling machine, is equipped with decoiler, heating device, two rolling mill, cooling device and rolling machine in proper order on the frame. The number of the uncoilers is two or three, the heating device is a heating furnace, and the cooling device is an air cooling device. The warm compound rolling mill adopts a warm compound process, and can carry out compound processing on some metals which are not suitable for the traditional cold compound rolling mill and hot compound rolling mill.
The warm compound rolling mill is designed into a two-layer or three-layer compound rolling mill. After the metal strip enters the heating furnace, the metal strip is continuously heated on line, and under the combined action of heat energy and mechanical pressure of a rolling mill, the original independent two-layer or three-layer metal interfaces achieve atom-spacing bonding, namely, the interfaces have enough bonding force (in subsequent diffusion annealing, the bonding force between the bonding interfaces is further strengthened), and the thickness of the metal strip is reduced. The compounded strip is then air-cooled at the exit and then further post-processed.
Although the above-mentioned warm compound rolling mill can complete rolling, cooling and winding of multiple layers of metal, the wound composite strip can only be a semi-finished product, the composite strip can be qualified only by further processing on other equipment, and when the composite strip is processed on other equipment, the composite strip needs to be carried, re-uncoiled and wound, obviously, the operations waste time and reduce production efficiency.
Disclosure of Invention
The invention provides a strip compound rolling system which saves production time and improves production efficiency.
The technical scheme for realizing the purpose is as follows:
a system for clad-rolling strip material, comprising:
a plurality of unwinders for releasing the strip;
the heating furnaces are used for heating the strips released by the uncoilers, and one heating furnace is arranged at the downstream of each uncoiler;
a rolling mill for rolling the strip fed into the rolling mill;
an annealing furnace located downstream of the rolling mill for annealing the strip exiting the rolling mill;
the cooling furnace is positioned at the downstream of the annealing furnace and used for cooling the strip output by the annealing furnace;
the coiling machine is positioned at the downstream of the cooling furnace and coils the cooled strip;
and the shearing device is positioned between the cooling furnace and the coiling machine, and the coiling machine shears the strip after finishing coiling the single coil of strip.
The invention integrates the processes of rolling, heat treatment, coiling, shearing and the like of the rolled strip on the same production line, and the production line has the advantages of time saving, high rolling efficiency and good plate shape, and the invention has the characteristics of time and labor saving in roll changing and very safety.
Drawings
FIG. 1 is a simplified schematic of the strip clad-rolling system of the present invention;
FIG. 2 is a front view of the rolling mill;
FIG. 3 is a schematic view of FIG. 2 with a portion of the parts hidden;
FIG. 4 is a schematic view of FIG. 3 with a portion of the parts hidden;
FIG. 5 is a cross-sectional view of a work roll change mechanism;
FIG. 6 is a perspective view of the fixing base;
FIG. 7 is a perspective view of a swing block;
FIG. 8 is a schematic view of the rotating track assembly in cooperation with the built-in track;
FIG. 9 is a schematic perspective view of a wrinkle resistant stabilizing roller;
FIG. 10 is a cross-sectional view of the combination of the anti-wrinkling stabilizing roller and the housing;
reference numbers in the figures:
an uncoiler A, a heating furnace B, a stainless steel strip material X0, an aluminum strip material X1 and a stainless steel strip material X2;
the device comprises a rolling mill C, a housing 1, an internal guide rail 1a, a work roller assembly 2, a support roller assembly 3, a work roller driving assembly 4, a roll changing combination assembly 5, a fixed seat 5a, a swinging block 5b, an elastic assembly 5C, a first mounting hole 5d, a second mounting hole 5e, a third mounting hole 5f, a driven part 5g, a hinged part 5h, a butt part 5i, a top pin 5j, a spring 5k, a connecting rod 5m, a roll changing driver 6, a linear driver 6a, a thrust ring 6b, a bracket assembly 7, a rack 7a, a supporting arm 7b, a swinging oil cylinder 7C, a supporting roller 7d, a rotating guide rail assembly 8, a supporting seat 8a, a hinged frame 8b, an external guide rail 8C, a first oil cylinder 8d and a second oil cylinder 8 e;
the device comprises an annealing furnace D, a cooling furnace E, a coiling machine F, a shearing device G, a pinch roll H, a straight head machine I, a leveling roll J, a leveling machine L, a welding machine M, a coupling U and a strip Y;
the wrinkle-preventing stabilizing roller N, the bracket 20, the first bearing 20a, the driver 21, the swing cylinder 21a, the driving shaft 21b, the rotating shaft 22, the second bearing 22a, the rotation roller 23, the rotating arm 24, the mandrel 25, the third bearing 25a, the revolution roller 26 and the channel T.
Detailed Description
As shown in fig. 1 to 10, the system for clad-rolling a strip of the present invention comprises: the uncoiler A, the heating furnace B, the rolling mill C, the annealing furnace D, the cooling furnace E, and the coiler F will be described in detail below for each part and the relationship between the parts:
the uncoiler A is multiple, a coiled strip is matched on each uncoiler A, in the embodiment, the uncoiler A is three, three uncoilers A are arranged according to an upper layer, a middle layer and a lower layer to form a multi-layer structure, wherein a stainless steel strip X0 is matched on the uncoiler A positioned on the upper layer, an aluminum strip X1 is matched on the uncoiler A positioned on the middle layer, a stainless steel strip X2 is matched on the uncoiler A positioned on the lower layer, the stainless steel strip X0 is released from the uncoiler A positioned on the upper layer, the aluminum strip X1 is released from the uncoiler A positioned on the middle layer, and the stainless steel strip X2 is released from the uncoiler A positioned on the lower layer.
The heating furnaces B are used for heating the strip released by the uncoiler a, in the embodiment, the number of the heating furnaces B is three, one heating furnace B is arranged at the downstream of each uncoiler a, the three heating furnaces B are also arranged according to three layers, namely an upper layer, a middle layer and a lower layer, so as to form a multilayer structure, wherein the heating furnace B positioned at the upper layer heats the released stainless steel strip X0, the heating furnace B positioned at the middle layer heats the released aluminum strip X1, and the heating furnace B positioned at the lower layer heats the released stainless steel strip X2. Different materials are heated to different temperatures, for example, stainless steel strip X0 and stainless steel strip X2 are heated to 180 to 220 ℃ and aluminum strip X1 is heated to 350 to 450 ℃.
Although the three uncoilers a and the three heating furnaces B are provided, in specific use, the number of the uncoilers a and the heating furnaces B can be selected according to needs, for example, when only one roll of raw material needs to be rolled for rolling, one uncoiler a and one heating furnace B are selected, and if a composite strip needs to be rolled, two uncoilers a and two heating furnaces B or three uncoilers a and three heating furnaces B are selected.
The rolling mill C rolls the strip entering the rolling mill C; in this embodiment, after the stainless steel strip material X0, the aluminum strip material X1 and the stainless steel strip material X2 are respectively fed into the rolling mill C, the three layers of strip materials are combined into a whole under the rolling force of the rolling mill C, since the aluminum strip material X1 is softened when the aluminum strip material X1 is heated to 350 to 450 ℃, and the stainless steel strip material X0 and the stainless steel strip material X2 are also heated to 180 to 220 ℃, the three layers of strip materials are easily combined into a whole to form the composite strip material when the rolling mill C rolls.
The rolling mill C in the embodiment comprises a housing 1, a working roller assembly 2, supporting roller assemblies 3, a working roller driving assembly 4 and a working roller changing mechanism, wherein the working roller assembly 2 is arranged on the housing 1, the supporting roller assemblies 3 are respectively arranged on two sides of the working roller assembly 2, the supporting roller assemblies 3 are connected with the housing 1, and the working roller driving assembly 4 is connected with the working roller assembly 2. For the rolling mill C with the above structure, wherein the housing 1, the work roll assembly 2, the support roll assembly 3, and the work roll driving assembly 4 all belong to the structures disclosed in the prior art, and are not described herein again, for the work roll changing mechanism, the embodiment is a new structure relatively to the prior art, specifically as follows:
the working roll changing mechanism in the embodiment comprises a roll changing combination component 5 and a roll changing driver 6, wherein the roll changing combination component 5 is fixed with the working roll component 2; the roll changing driver 6 is used for combining with the roll changing combination component 5 to move the work roll component 2, and the roll changing driver 6 is positioned at one side of the memorial archway 1.
Roll change combination module 5 includes fixing base 5a, swing piece 5b, elastic component 5c, be equipped with first mounting hole 5d, second mounting hole 5e, third mounting hole 5f on the fixing base 5a, first mounting hole 5d and second mounting hole 5e are arranged along the axial of fixing base 5a, form the step hole after first mounting hole 5d and second mounting hole 5e communicate, third mounting hole 5f is arranged along the radial of fixing base 5a, third mounting hole 5f and second mounting hole 5e communicate.
The swinging block 5b is driven by the end part of the roller changing driver 6 to swing and reset after the swing is finished to be matched with the end part of the roller changing driver 6, and the swinging block 5b is hinged with the fixed seat 5 a. The swinging block 5b comprises a passive part 5g, a hinged part 5h and a butting part 5i, the passive part 5g is fixed with the butting part 5i, the passive part 5g is used for being matched with the end part of the roll changing driver 6, at least one part of the passive part 5g is positioned outside the first mounting hole 5d, the butting part 5i is positioned in the first mounting hole 5d, one end of the hinged part 5h is fixed with the butting part 5i, the other end of the hinged part 5h is inserted into the second mounting hole 5e, and the hinged part 5h and the fixed seat 5a form a hinged connection through a hinged part passing through the third mounting hole 5f and the hinged part 5 h.
One end of the elastic component 5c is fixed with the fixed seat 5a, and the other end of the elastic component 5c is propped against the swinging block 5 b. The elastic component 5c comprises a top pin 5j, a spring 5k and a connecting rod 5m, the top pin 5j abuts against the abutting part 5i of the swinging block 5b under the tension action of the spring 5k, the spring 5k is sleeved on the connecting rod 5m, one end of the spring 5k is matched with the top pin 5j, the other end of the spring 5k is matched with the connecting rod 5m or the fixing seat 5a, one end of the connecting rod 5m is fixed with the fixing seat 5a, and the other end of the connecting rod 5m is matched with the top pin 5 j.
The roller changing driver 6 comprises a linear driver 6a and a thrust ring 6b, the linear driver 6a can adopt linear driving components such as a hydraulic cylinder and an air cylinder, the linear driver 6a preferably adopts an oil cylinder, the thrust ring 6b is fixed with the power output end of the linear driver 6a, and the outer diameter of the thrust ring 6b is larger than that of the power output end of the linear driver 6 a.
When the work roll assembly 2 needs to be replaced with a new work roll assembly 2 after being worn, the new work roll assembly 2 can be loaded on the housing 1 only by unloading the worn work roll assembly 2 installed on the housing 1, the worn work roll assembly 2 needs to be unloaded through the work roll replacing mechanism, and the work process of the work roll replacing mechanism is as follows:
the linear driver 6a works to drive the thrust ring 6b to feed to the position of the roll-changing combination assembly 5, when the thrust ring 6b touches the passive part 5g of the swing block 5b, the feeding acting force of the thrust ring 6b is transmitted to the passive part 5g, the passive part 5g rotates by taking the hinged part as the center, when the elastic assembly 5c is compressed by the abutting part 5i, when the swing block 5b rotates to make way of the thrust ring 6b, the swing block 5b is reset under the tension action of the elastic assembly 5c, because the fixed seat 5a and the thrust ring 6b form abutting at the moment, the driver 6 continues to exert the feeding action, the driver 6 forms a pushing acting force on the roll-changing combination assembly 5, so that the working roll assembly 2 fixed with the roll-changing combination assembly 5 moves to the other side of the memorial archway (the other side is the operation side of the memorial archway) under the pushing acting force, finally, the worn-out work roll assembly 2 is unloaded from the housing 1.
When a new working roll component 2 is assembled with the memorial archway 1, after the new working roll component 2 is sent to the rotating guide rail component 8, the driver 6 repeats the process of unloading the working roll component 2, then after the swinging block 5b is reset under the tension action of the elastic component 5c, the driver 6 loads the retreating acting force to the driven part 5g through the thrust ring 6b when retreating, and as the fixed seat 5a and the thrust ring 6b form abutting at the moment, the driver 6 continues to exert the retreating action, the driver 6 exerts the dragging acting force on the roll-changing combination component 5, so that the working roll component 2 fixed with the roll-changing combination component 5 moves to one side of the memorial archway (one side is the driving side of the memorial archway) under the dragging acting force, and finally the new working roll component 2 reaches the position completely matched with the memorial archway 1.
The rolling mill C further comprises a bracket assembly 7 and a rotary guide rail assembly 8, the bracket assembly 7 is used for supporting the coupler U when the work roller assembly 2 is replaced, the bracket assembly 7 is arranged on one side of the housing 1, namely the bracket assembly 7 is positioned on the driving side of the housing 1, and the work roller assembly 2 is connected with a driving device (driving the work roller assembly 2 to rotate) through the coupler U, so that when the work roller assembly 2 is unloaded, the coupler U is required to be separated from the work roller assembly 2, and the unloading can be carried out. In this way only one set of couplings U is needed to be suitable for an old or new work roll assembly 2.
The bracket assembly 7 comprises a frame 7a and a plurality of swing arm assemblies which are symmetrically arranged, wherein each swing arm assembly comprises a supporting arm 7b and a swing oil cylinder 7c, one end of the supporting arm 7b is hinged to the frame 7a, the other end of the supporting arm 7b is connected with the swing oil cylinder 7c, the swing oil cylinder 7c is fixedly connected with the frame 7a, preferably, a supporting roller 7d is arranged on the supporting arm 7b, and the supporting roller 7d is rotatably arranged on the supporting arm 7 b.
When the coupler U needs to be supported, the swing oil cylinder 7c works to push the supporting arm 7b to swing towards the coupler U, so that the supporting roller 7d on the supporting arm 7b is matched with the coupler U, and the coupler U is supported by the bracket component 7. When the unloading of the working roller assembly 2 is completed and a new working roller assembly 2 is dragged to the driving side by the driver 6, the working roller assembly 2 is close to the coupler U supported by the bracket assembly 7, along with the continuous dragging, the shaft head of the working roller assembly 2 is gradually inserted into the coupler U to form fit with the coupler U, and after the new working roller assembly 2 is in place and fastened with the coupler U, the new working roller assembly is reset by the swing oil cylinder 7c in the bracket assembly 7, so that the swing arm assembly is reset, the coupler U supported by the swing arm assembly and the shaft head of the working roller assembly 2 form support for the coupler U.
The rolling mill C further comprises a rotating guide rail assembly 8, wherein the rotating guide rail assembly 8 is movably arranged on the other side of the housing 1, namely the rotating guide rail assembly 8 is positioned on the operation side of the housing 1, and the rotating guide rail assembly 8 is provided with a first switching position which is in an open state when the new working roller assembly 2 is replaced and a second switching position which is in a closed state after the new working roller is replaced.
The guide rail assembly 8 comprises a supporting seat 8a, a hinged frame 8b, an external guide rail 8c, a first oil cylinder 8d and a second oil cylinder 8e, the supporting seat 8a is fixed with the housing 1, the hinged frame 8b is hinged to the supporting seat 8a, the power output end of the first oil cylinder 8d is connected with the hinged frame 8b, under the power action of the first oil cylinder 8d, the hinged frame 8b can swing relative to the housing 1, one end of the external guide rail 8c is hinged to the hinged frame 8b, the external guide rail 8c is matched with the internal guide rail 1a installed in the housing 1, and when the working roller assembly 2 is unloaded or a new working roller assembly 2 is loaded, the guide rail assembly is used for guiding the working roller assembly 2.
On the other hand, because the external guide rail 8C is located outside the housing 1, when the work roll assembly 2 is unloaded, a receiving device (such as a roll changing trolley) is usually adopted to receive one end of the work roll assembly 2, when the other end of the work roll assembly 2 is completely separated from the internal guide rail 1a and is supported by the external guide rail 8C, because both ends of the work roll assembly 2 are in a supported state and are not blocked by other parts in the rolling mill C, the work roll assembly 2 can be directly lifted away by a lifting appliance, and therefore, the external guide rail 8C is beneficial to saving of the roll changing time.
The second oil cylinder 8e is respectively connected with the hinge frame 8b and the external guide rail 8c, and preferably, the power output end of the second oil cylinder 8e is hinged with the external guide rail 8 c.
When the replacement work roller assembly 2 needs to enable the external guide rail 8c to be matched with the internal guide rail 1a, the first oil cylinder 8d drives the hinged frame 8b to swing towards the inner side direction of the housing 1, and after the hinged frame 8b swings in place, the second oil cylinder 8e drives the external guide rail 8c to swing, so that the external guide rail 8c and the end part of the internal guide rail 1a are in a combined state.
After the work roll assembly 2 is replaced, in order to avoid collision of the guide rail assembly 8 to an operator or occupation of an operation space on the operation side of the rolling mill, the second oil cylinder 8e drives the external guide rail 8c to swing so that the external guide rail 8c is in a furled state, and the first oil cylinder 8d drives the hinge frame 8b to swing towards the outer side of the housing 1 so as to leave out the operation space. The structure ensures the safety of operators and does not occupy the space of the operation side.
The annealing furnace D is positioned at the downstream of the rolling mill C and is used for annealing the strip Y output by the rolling mill C; the cooling furnace E is located downstream of the annealing furnace D and cools the strip Y output from the annealing furnace D. If the strip materials entering the rolling mill C are a stainless steel strip material X0, an aluminum strip material X1 and a stainless steel strip material X2, the rolling mill C rolls the three layers of strip materials to obtain a strip material Y which is compounded into a whole, and in order to enable the metallographic structure of the compounded strip material Y to meet the use requirement, the strip material Y output from the rolling mill C is annealed and cooled, the temperature in the annealing furnace D is selected according to the material of the strip material, and in the embodiment, 300 ℃ is adopted.
The coiler F is located downstream of the cooling furnace E, and the coiler F winds the cooled strip Y, and the winding volume is set as needed, but when the strip Y is wound to the set volume, the strip Y needs to be cut to avoid influencing continuous production.
This embodiment also includes pinch rollers H downstream of the unwinder a, which provide power for the transport of the strip. The number of the pinch rolls H is at least one, and the pinch rolls H are arranged at least at the downstream of the uncoiler A positioned at the middle layer. In the embodiment, three pinch rolls H are arranged, and the pinch roll H is arranged at the downstream of each uncoiler A.
The embodiment also comprises at least one straight-head machine I for straightening the head of the strip, wherein the straight-head machine I is positioned between the uncoiler A and the heating furnace B. The number of the straight-head machines I is at least one, the straight-head machines I are arranged at least at the downstream of the uncoiler A positioned at the middle layer, and the head of the raw material strip is straightened by the straight-head machines I and then enters the heating furnace B for heating.
The present embodiment further includes leveling rolls J disposed between the annealing furnace D and the rolling mill C and/or between the annealing furnace D and the cooling furnace E. And the leveling roller J levels the rolled strip Y, so that the surface of the strip Y is flat, and the quality of the strip is improved.
And the device also comprises a leveling machine L, and the leveling machine L is positioned between the cooling furnace E and the shearing device G. And the leveling machine L performs leveling treatment on the heat-treated strip Y again, so that the surface flatness of the strip Y is further improved, and the quality of the strip Y finally coiled by the coiling machine is ensured.
The device also comprises a welding machine M for welding the rolled strip, wherein the welding machine M is positioned between the rolling mill C and the annealing furnace D. When the use of the raw strip at the uncoiler a is completed, the strip Y output from the rolling mill C has a tail, and when the uncoiler a is loaded with a new raw strip and continuously rolled, the new strip Y output from the rolling mill C has a head, and the tail and the head of the two ends are welded together by the welder M, so that the strip coiled on the uncoiler F is in a continuous state.
In the prior art, a single stabilizing roller is adopted, a wrap angle is formed between the single roller and a strip, but the angle of the single roller cannot be adjusted usually, in the actual rolling process, the strip with different types and different thicknesses is usually faced, the angle of the single roller cannot be adjusted, and the required wrap angle is different for the strip with different thicknesses, so that in the rolling process of a rolling mill C, the conditions of wave, vibration, noise and the like of the strip in the rolling process are often caused due to the unreasonable structure of the stabilizing roller, and the wave and the vibration easily cause wrinkles on the surface of the thin strip.
In this regard, the present embodiment further includes a wrinkle resistant stabilizing roller N, which is located between the heating furnace B and the rolling mill C, and which is S-shaped with respect to the strip passing through the wrinkle resistant stabilizing roller N.
The crease-resistant stabilizing roller N comprises a bracket 20, a rotation assembly, a revolution assembly rotating around the rotation assembly and a driver 21, wherein two ends of the rotation assembly are respectively connected with the bracket 20; the revolution component is matched with the rotation component, or the revolution component is connected with the support 20, the driver 21 is connected with the rotation component to drive the revolution component to rotate around the rotation component, or the driver 21 is connected with the revolution component to drive the revolution component to rotate around the rotation component, and a channel T for the strip to pass through is reserved between the rotation component and the revolution component.
Because the invention adopts a two-roller type, the strip material passes through the channel after being matched with the revolution component to form a wrap angle, and then is matched with the rotation component to form the wrap angle, so that the strip material forms an S shape, and the strip material can keep tension in the form, and wrinkles are avoided. The revolution component can rotate around the rotation component, so that the position of the revolution component can be adjusted according to the requirements of the strips, and the wrap angles among the strips, the rotation component and the revolution component can be changed to meet the requirements of different strips on the wrap angles.
The anti-wrinkling stabilizing roller is integrally positioned on one side of the housing 1, so that the distance between the anti-wrinkling stabilizing roller and the roller is short, the tension of the strip material is kept between the anti-wrinkling stabilizing roller and the roller, and the strip material is further prevented from wrinkling. The actuator 21 may be a structure composed of a swing cylinder 21a and a driving shaft 21b, or a structure driven by a motor, a reducer, and a driving shaft, and in this embodiment, the actuator 21 preferably adopts a structure composed of a swing cylinder 21a and a driving shaft 21 b.
Preferably, the rotation assembly comprises a rotation shaft 22 and a rotation roller 23, two ends of the rotation shaft 22 are respectively rotatably connected with the bracket 20, and a driver 21 of the rotation shaft 22 is connected; the driver 21 and the rotation shaft 22 are preferably connected through splines, so that the transmission torque is large, and the disassembly is convenient.
The rotation roller 23 is sleeved on the rotating shaft 22, and the rotation roller 23 is rotatably matched with the rotating shaft 22. A first bearing 20a is mounted on the bracket 20, and both ends of the rotating shaft 22 are connected to the first bearing 20a, so that the rotating shaft 22 can rotate relative to the bracket 20 when receiving a torque. The rotation shaft 22 is provided with a second bearing 22a, and the rotation roller 23 is engaged with the second bearing 22a so that the rotation roller 23 can rotate relative to the rotation shaft 22.
The revolution component comprises a rotating arm 24, a mandrel 25 and a revolution roller 26, and one end of the rotating arm 24 is fixed with the rotation component; in this embodiment, one end of the rotating arm 24 is fixed to the rotating shaft 22, a plurality of flat portions are disposed on the circumferential surface of the rotating shaft 22, a first through hole is disposed at one end of the rotating arm 24, a plurality of flat portions are also disposed in the first through hole, and the flat portions in the first through hole are matched with the flat portions on the rotating shaft 22, so that the one end of the rotating arm 24 and the rotating shaft 22 are circumferentially fixed. The spindle 25 is connected to the other end of the rotating arm 24. The circumferential surfaces of the mandrel 25 and the rotating arm 24 are provided with a plurality of flat parts, the other end of the rotating arm 24 is provided with a second through hole, the second through hole is internally provided with a plurality of flat parts, and the flat parts in the second through hole are matched with the flat parts on the mandrel 25, so that one end of the rotating arm 24 and the mandrel 25 are circumferentially fixed. The revolving roller 26 is fitted over the mandrel 25, and the revolving roller 26 is in rotatable engagement with the mandrel 25. The mandrel 25 is provided with a third bearing 25a, and the revolving roller 26 is engaged with the third bearing 25a so that the revolving roller 26 can rotate relative to the mandrel 25. In the invention, the axis of the rotation roller 23 and the axis of the revolution roller 26 are combined into one, the structure is compact, and the rigidity is good.
When the strip material is matched with the revolution roller 26 in the revolution component to form a wrap angle, the strip material passes through the channel T, and then is matched with the rotation roller 23 in the rotation component to form the wrap angle, and the wrap angle is selected according to the requirement of the strip material, specifically: and controlling the driver 21 to work, wherein the driver 21 drives the rotating shaft 22 to rotate, the rotating shaft 22 drives the rotating arm 24 to rotate, and the rotating arm 24 drives the mandrel 25 and the revolving roller 26 to revolve around the rotating assembly, so that the position of the revolving assembly is changed, and the wrap angle of the strip material with the revolving roller 26 and the rotating roller 23 is changed. After the position of the revolution component is determined, the revolution component can be moved to start the rolling work, and the revolution roller 26 and the rotation roller 23 are rotated by the friction force between the strip and the revolution roller 26 and the rotation roller 23 during the movement.
(1) The two-roller type is adopted, the strip material passes through the channel after being matched with the revolution component to form a wrap angle, and then is matched with the rotation component to form the wrap angle, so that the strip material forms an S shape, the tension force to the strip material can be increased, and the wrinkle on the surface of the strip material is avoided.
(2) The two rollers are divided into a rotation roller and a revolution roller, and the revolution component revolves around the rotation component under the driving of the driver, so that the wrap angle of the strip and the rollers can be adjusted to meet the requirements of rolling the strips with different thicknesses.
(3) Because the revolution component is matched with the rotation component, the driver is connected with the rotation component to drive the revolution component to rotate around the rotation component, and the structure enables a part of the rotation component and a part of the revolution component to be a shared part, so that the revolution component has the characteristics of compact structure and good rigidity.
The above description is only an exemplary embodiment of the present invention, and should not be taken as limiting the scope of the invention, and any person skilled in the art should understand that they can make equivalent changes and modifications without departing from the concept and principle of the present invention.

Claims (10)

1. A system for clad-rolling strip material, comprising:
a plurality of unwinders (A) for releasing the strip;
a plurality of heating furnaces (B) for heating the strip released from the uncoilers (A), one heating furnace (B) being arranged downstream of each uncoiler (A);
a rolling mill (C) for rolling the strip fed into the rolling mill (C);
an annealing furnace (D) located downstream of the rolling mill (C) for annealing the strip exiting the rolling mill (C);
a cooling furnace (E) located downstream of the annealing furnace (D) for cooling the strip exiting from the annealing furnace (D);
a coiling machine (F) positioned at the downstream of the cooling furnace (E), wherein the coiling machine (F) coils the cooled strip;
and the shearing device (G) is positioned between the cooling furnace (E) and the coiling machine (F), and the coiling machine (F) shears the strip after finishing coiling the single coil of strip.
2. A system for clad-rolling a strip according to claim 1, further comprising: and the pinch roll (H) is positioned at the downstream of the uncoiler (A) and provides power for conveying the strip.
3. A system for clad-rolling a strip according to claim 1, further comprising: at least one straight-end machine (I) for straightening the head of the strip, the straight-end machine (I) being located between the uncoiler (A) and the heating furnace (B).
4. The system for the clad-rolling of strips according to claim 1, characterized in that it further comprises leveling rolls (J) arranged between the annealing furnace (D) and the rolling mill (C) and/or between the annealing furnace (D) and the cooling furnace (E).
5. The system for the combined rolling of strips according to claim 1, characterised in that it further comprises a leveler (L) located between the cooling furnace (E) and the shearing device (G).
6. A system for the clad-rolling of strips according to claim 1, further comprising a welder (M) for welding the rolled strip, the welder (M) being located between the rolling mill (C) and the annealing furnace (D).
7. A system for the clad-rolling of strip according to claim 1, further comprising a crease-resistant stabilizing roller (N) located between the heating furnace (B) and the rolling mill (C), the crease-resistant stabilizing roller (N) having an S-shape with respect to the strip passing through the crease-resistant stabilizing roller (N).
8. System for the clad-rolling of strips according to any one of claims 1 to 7, characterized in that the rolling mill (C) comprises: a memorial archway (1);
the working roller assembly (2), the working roller assembly (2) is arranged on the housing (1);
the support roller assembly (3) is respectively arranged on two sides of the working roller assembly (2), and the support roller assembly (3) is connected with the memorial archway (1);
the working roll driving assembly (4), the working roll driving assembly (4) is connected with the working roll assembly (2);
work roll change mechanism, work roll change mechanism includes:
the roll changing combination component (5), the roll changing combination component (5) is fixed with the work roll component (2);
a roll changing driver (6) which is used for combining with the roll changing combination component (5) to move the work roll component (2), and the roll changing driver (6) is positioned at one side of the memorial archway (1).
9. Compound rolling system of strips according to claim 8, characterized in that the roll change joining assembly (5) comprises:
a fixed seat (5 a);
the swinging block (5b) is driven by the end part of the roll changing driver (6) to swing and reset after the swinging is finished, and the swinging block (5b) is matched with the end part of the roll changing driver (6) and is hinged with the fixed seat (5 a);
one end of the elastic component (5c) is fixed with the fixed seat (5a), and the other end of the elastic component (5c) is propped against the swinging block (5 b).
10. The system for clad-rolling a strip according to any one of claims 1 to 7, further comprising:
a bracket component (7) used for supporting the coupler when the work roll component (2) is replaced, wherein the bracket component (7) is arranged on one side of the housing (1);
the rotary guide rail assembly (8) is movably arranged on the other side of the housing (1), and the rotary guide rail assembly (8) is provided with a first switching position which is in an open state when the new working roller assembly (2) is replaced and a second switching position which is in a closed state after the new working roller is replaced.
CN202210524325.4A 2022-05-13 2022-05-13 Combined rolling system for strip Pending CN114888082A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210524325.4A CN114888082A (en) 2022-05-13 2022-05-13 Combined rolling system for strip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210524325.4A CN114888082A (en) 2022-05-13 2022-05-13 Combined rolling system for strip

Publications (1)

Publication Number Publication Date
CN114888082A true CN114888082A (en) 2022-08-12

Family

ID=82721361

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210524325.4A Pending CN114888082A (en) 2022-05-13 2022-05-13 Combined rolling system for strip

Country Status (1)

Country Link
CN (1) CN114888082A (en)

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