CN115301743A - Metal belt traction device and metal belt production line - Google Patents

Metal belt traction device and metal belt production line Download PDF

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Publication number
CN115301743A
CN115301743A CN202210884112.2A CN202210884112A CN115301743A CN 115301743 A CN115301743 A CN 115301743A CN 202210884112 A CN202210884112 A CN 202210884112A CN 115301743 A CN115301743 A CN 115301743A
Authority
CN
China
Prior art keywords
metal
belt
surface traction
metal strip
traction belt
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
CN202210884112.2A
Other languages
Chinese (zh)
Inventor
王万慧
方建忠
韩会全
李旭久
高爱民
田小刚
姜玖辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CISDI Engineering Co Ltd
CISDI Research and Development Co Ltd
Original Assignee
CISDI Engineering Co Ltd
CISDI Research and Development Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CISDI Engineering Co Ltd, CISDI Research and Development Co Ltd filed Critical CISDI Engineering Co Ltd
Priority to CN202210884112.2A priority Critical patent/CN115301743A/en
Publication of CN115301743A publication Critical patent/CN115301743A/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/06—Pushing or forcing work into pass
    • 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
    • B21B1/24—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 in a continuous or semi-continuous process
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/48—Tension control; Compression control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work
    • B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/02—Advancing webs by friction roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/26—Registering, tensioning, smoothing or guiding webs longitudinally by transverse stationary or adjustable bars or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

The invention relates to a metal band traction device and a metal band production line, belonging to the technical field of metal calendering and comprising a guide mechanism arranged on the upper side of a metal band, wherein the guide mechanism comprises at least one surface traction band transmission mechanism, the surface traction band transmission mechanism comprises a surface traction band, the surface traction band is spaced from the theoretical position of the metal band by a certain distance so as to enable the metal band in a normal state to freely pass, and the linear speed of the surface traction band is not less than the production running speed of the metal band so as to enable the upwarped metal band to be flattened under the traction of friction force. The invention solves the problems of emptying, stacking, winding and the like of the metal belt caused by the speed difference between the head part and the subsequent part of the metal belt, so that the head part of the metal belt can be rapidly and successfully threaded, the production accidents caused by threading and the downtime of a production line are reduced, the production rate of the production line is improved, the waste loss of products caused by the production accidents is reduced, the metal yield is improved, and the production efficiency and the economic benefit of the production line are comprehensively improved.

Description

Metal belt traction device and metal belt production line
Technical Field
The invention belongs to the technical field of metal rolling, and relates to a metal belt traction device and a metal belt production line.
Background
The short-flow continuous casting and rolling is a technology successfully developed in the end of the 80 th 20 th century, is a revolutionary technology in the field of ferrous metallurgy after converter steelmaking and full continuous casting, and leads the development direction of the steel manufacturing technology. The successful development of the method realizes the organic combination of thin-specification casting blank continuous casting and hot continuous rolling, and is a great breakthrough of near-net-shape manufacturing technology. The short-process continuous casting and rolling production technology is very beneficial to building energy-saving and environment-friendly society, and has more outstanding advantages compared with the traditional hot continuous rolling as the development trend of the future ferrous metallurgy technology. The endless or semi-endless production process of the short-process continuous casting and rolling technology is benefited, the threading process with the highest failure rate in the conventional hot continuous rolling single block rolling is avoided, and the rolling stability is greatly improved compared with the conventional hot continuous rolling.
When the short-process continuous casting and rolling is carried out in the headless or semi-headless production, the strip steel passes through the finishing mill set and is cooled to reach the target temperature through the laminar cooling control, the strip steel is cut by the shearing machine and then guided into different coiling machines to realize high-speed coiling, and the head of the next strip steel is moved to the coiling machine to be coiled through the shearing machine to carry out threading and coiling. The short-process continuous casting and rolling production line is characterized by production of ultrathin strip steel, and in recent years, with continuous breakthrough of high casting speed continuous casting technology, the production speed of the rolling line is continuously increased, and the problems of emptying, stacking, winding and the like of the strip steel are easily caused in the process that a strip head runs to a coiler after the thin strip steel is sheared by a shearing machine, so that the production line is stopped due to accidents, and economic benefits and productivity benefits are reduced.
In order to solve the problem, in the prior art, a manner of ejecting fluid pressure and providing a mechanical limit structure is adopted to prevent the tape head from warping, but the problem is not effectively solved from the application effect. In addition, with the progress of production technology, the drawing speed and the thickness of continuous casting billets break through continuously, in addition, the downstream market has higher requirements on ultrathin and ultrathin specification products in the trend of hot cooling, the thickness of strip steel is reduced continuously, the production line speed is increased continuously, the problems of strip head soaring, stacking, winding and the like during strip threading are more and more prominent, and the production line faults are increased, so that the continuous casting strip steel production line becomes a bottleneck for restricting the efficient production of ultrathin strip steel.
Disclosure of Invention
In view of the above, the present invention provides a metal strip drawing apparatus and a metal strip production line, so as to solve the problems of emptying, stacking and winding of a metal strip caused by a speed difference between a head portion and a subsequent portion of the metal strip during threading.
In order to achieve the purpose, the invention provides the following technical scheme:
a metal belt traction device comprises a guide mechanism arranged on the upper side of a metal belt, wherein the guide mechanism comprises at least one surface traction belt transmission mechanism, the surface traction belt transmission mechanism comprises a surface traction belt, the surface traction belt is spaced from the theoretical position of the metal belt by a certain distance so as to enable the metal belt in a normal state to freely pass through, and the linear speed of the surface traction belt is not less than the production running speed of the metal belt so as to enable the upwarped metal belt to be flattened under the traction of friction force; the distance between the surface traction belt and the metal belt is fixed or adjustable.
Optionally, the guide mechanism is movable to be raised or lowered away from or closer to the metal strip as required by the production.
Optionally, the linear speed of the surface traction belt is adjustable.
Optionally, lateral limiting mechanisms are arranged on two sides of the surface traction belt to prevent the surface traction belt from deviating.
Optionally, the surface traction belt and the metal belt are arranged in parallel or inclined with each other at a theoretical position; when arranged at an inclination, the distance between the surface traction belt and the metal belt is gradually reduced along the advancing direction of the metal belt.
Optionally, a roller conveyor or a guide mechanism is arranged on the lower side of the metal strip to convey the metal strip, and when the guide mechanism is arranged on the lower side of the metal strip, the number of surface traction belt transmission mechanisms of the guide mechanism on the upper side and the lower side of the metal strip is the same or different.
Optionally, the width of the surface traction band is not less than 0.3 times the width of the metal strip.
Optionally, the linear speed of the surface traction belt is 1 to 2 times the running speed of the metal belt production.
Optionally, the coefficient of friction between the surface traction belt and the metal belt is in the range of 0.2 to 0.9.
Optionally, the coefficient of friction between the surface traction belt and the metal belt is in the range of 0.5 to 0.7.
Optionally, the surface traction belt is made of a heat-resistant material, and the heat-resistant temperature is not lower than 850 ℃.
The metal strip production line comprises a plate blank thinning unit, a shearing machine and a coiling unit which are sequentially arranged along the rolling direction, wherein the metal strip traction device is arranged between the shearing machine and the coiling unit.
The invention has the beneficial effects that: the problems of emptying, stacking, winding and the like of the metal belt caused by the speed difference between the head part and the subsequent part of the metal belt are solved, the head part of the metal belt can be rapidly and successfully threaded, the production accidents caused by the threading failure are reduced, the downtime of a production line is further reduced, the production rate of the production line is improved, the waste loss of products caused by the production accidents is reduced, the metal yield is improved, and the production efficiency and the economic benefit of the production line are comprehensively improved.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims thereof.
Drawings
For a better understanding of the objects, aspects and advantages of the present invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic layout of example 1 of the present invention;
FIG. 2 is a schematic layout of example 2 of the present invention;
FIG. 3 is a schematic layout of example 3 of the present invention;
FIG. 4 is a schematic layout of example 5 of the present invention;
fig. 5 is a schematic layout of example 6 of the present invention.
Reference numerals: the metal belt drawing device 1, the thinning unit 2, the shearing machine 3, the coiling unit 4, the metal belt 5, the conveying roller way 6, the first coiling machine 401, a first upper driving roller 1011, a second upper driving roller 1012, an upper surface drawing belt 1013, a tension adjusting system 1014, a first lower driving roller 1021, a second lower driving roller 1022 and a lower surface drawing belt 1023.
Detailed Description
The following embodiments of the present invention are provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustration only and not for the purpose of limiting the invention, shown in the drawings are schematic representations and not in the form of actual drawings; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 5, a metal belt traction apparatus includes a support and a guide mechanism disposed on an upper side of a metal belt 5, the guide mechanism includes at least one surface traction belt transmission mechanism, the surface traction belt transmission mechanism includes a driving roller rotatably connected to the support, a surface traction belt, and a driving device for driving the driving roller to rotate to drive the surface traction belt to move, the surface traction belt is spaced from a theoretical position of the metal belt 5 by a certain distance to allow the metal belt 5 in a normal state to freely pass through, and a linear speed of the surface traction belt is not less than a production running speed of the metal belt 5 to flatten the upwarped metal belt 5 under traction of friction. Preferably, the linear speed of the surface traction belt is 1 to 2 times the production running speed of the metal belt 5.
The surface traction belt and the metal belt 5 can be arranged in parallel or obliquely; when arranged obliquely, the distance between the surface traction belt and the metal belt 5 is gradually reduced in the advancing direction of the metal belt 5.
The distance between the surface traction belt and the metal belt 5 can be fixed and unchanged or can be set in an adjustable mode. Preferably in an adjustable manner to facilitate adjustment of the distance to the metal strip 5 according to the thickness of the metal strip 5.
The width of the surface traction belt of the present invention is preferably selected to be not less than 0.3 times the width of the metal belt 5, and the surface of the surface traction belt has a certain roughness and a friction coefficient with the metal belt 5 in the range of 0.2 to 0.9, preferably 0.5 to 0.7.
The surface traction belt is made of heat-resistant materials, and the heat-resistant temperature is not lower than 850 ℃ so as to ensure that the surface traction belt can work in the environment of 750-20 ℃. It is also possible to optionally provide an internal cooling system inside the metal strip traction device 1, as required, to ensure its normal operation.
The width of the surface traction band according to the invention is a function of the width of the metal band, the thickness of the metal band, the speed of the surface traction band, the coefficient of friction between the surface traction band and the metal band 5, the operating temperature.
The side limiting mechanisms can be arranged on two sides of the surface traction belt and are arranged on the support to prevent the surface traction belt from deviating.
The metal belt traction device 1 can be movable, so as to be lifted or pressed down according to production requirements, and can be realized by adopting a single-side swing arm type structure or a double-side support lifting type structure. When the tape threading is carried out on the production line, the device is pressed down to a working position, so that the tape threading is ensured to be successful; when the threading is successful, the device can be lifted to a standby position, so that the damage influence of high-temperature or severe working environment on the device is reduced, and the service life is prolonged.
The output speed of the driving device of the surface traction belt transmission mechanism is adjustable, so that the linear speed of the surface traction belt is adjustable.
The conveying device for conveying the metal strip 5 of the present invention may be a roller conveyor or a guide mechanism provided on the lower side of the metal strip 5, and when the guide mechanism is provided on the lower side of the metal strip 5, the number of surface traction belt transmission mechanisms of the guide mechanisms located on the upper and lower sides of the metal strip 5 is the same or different.
The invention also provides a metal strip production line, which comprises a plate blank thinning unit, a shearing machine 3 and a coiling unit 4 which are sequentially arranged along the rolling direction, wherein the metal strip traction device 1 is arranged between the shearing machine 3 and the coiling unit 4.
The invention can be applied to the short-flow production process of the metal strip and can also be applied to the conventional process production of the metal strip. In the process of producing a metal strip, after the metal strip 5 is thinned by a final rolling mill, the metal strip 5 with qualified performance needs to be wound on a coiler unit 4. In order to ensure that the head of the metal strip 5 can stably pass through a passage in front of a coiling unit 4 and reach the coiling unit 4 after being sheared by a shearing machine 3, the invention arranges a metal strip traction device 1 in the passage area, and the metal strip traction device 1 provides a limiting function and advancing power, thereby avoiding the problems of emptying, stacking, winding and the like in the head area of a coil and avoiding the production accidents of a production line.
According to the aerodynamic principle, when the metal strip 5 is conveyed, due to the plate shape problem (such as warping) of the metal strip and external friction or wind resistance, the strip head can be emptied, so that the horizontal speed of the strip head part is reduced, and the speed of the strip head is lower than that of the subsequent metal strip, so that the strip head can be emptied and arched, and then the strip head can collide with a surface traction belt transmission mechanism. The invention conveys the metal strip 5 by the surface traction belt transmission mechanism with a power source, increases the head speed of the metal strip 5, avoids the problems of emptying, stacking, winding and the like of the metal strip 5 caused by the speed difference between the head and the subsequent part, reduces the production accidents caused by belt threading, ensures the head of the metal strip to be threaded successfully and reduces the downtime of the production line, thereby improving the production efficiency of the production line, reducing the product scrapping loss caused by the production accidents, improving the metal yield and comprehensively improving the production efficiency and the economic benefit of the production line.
The number of the surface traction belt transmission mechanisms is positively correlated with the distance of belt threading and traveling of the metal belt; the power source of the surface traction belt drive mechanism drives the surface traction belt drive mechanism to generate a regular or irregular rotation, and when the metal strip 5 contacts the surface traction belt drive mechanism, it can guide the metal strip 5 to advance in the production forward direction.
Example 1
As shown in fig. 1, a metal strip drawing device 1 is arranged between a shearing machine 3 and a coiling unit 4, and a guide mechanism on the upper side and the lower side of a metal strip only comprises a surface drawing belt transmission mechanism, namely 1 surface drawing belt transmission mechanism is arranged on the upper side and the lower side of a metal strip 5: an upper surface traction belt transmission mechanism and a lower surface traction belt transmission mechanism which are respectively positioned at the upper side and the lower side of the metal belt 5. The upper surface traction belt transmission mechanism is composed of a first upper driving roller 1011, a second upper driving roller 1012 and an upper surface traction belt 1013, wherein the first upper driving roller 1011 and the second upper driving roller 1012 are externally connected with a motor for driving, and an internal cooling system is built inside the driving rollers to ensure normal operation of the driving rollers. The distance between the upper surface traction belt 1013 and the upstream (inlet) metal strip is 150mm, and the distance between the upper surface traction belt 1013 and the downstream (outlet) metal strip is 40mm. The lower surface traction belt transmission mechanism is composed of a first lower driving roller 1021, a second lower driving roller 1022 and a lower surface traction belt 1023, wherein the first lower driving roller 1021 and the second lower driving roller 1022 are externally connected with a motor for driving, and an internal cooling system is built inside the driving rollers to ensure normal operation of the driving rollers. The distance between lower surface drawing belt 1023 and the upstream (inlet) metal belt is 150mm, and the distance between lower surface drawing belt 1023 and the downstream (outlet) metal belt is 40mm. The thickness of the produced metal strip was 0.6mm, the temperature of the metal strip was 650 ℃, the width of the metal strip was 1300mm, the running speed of the metal strip was 16.1m/s, the linear speed of the upper surface drawing belt 1013 and the lower surface drawing belt 1023 was 16.905m/s, and the width was 600mm.
After the metal band is cut by the shearing machine 3, the band head starts to penetrate, the system sets the metal band traction device 1 to be adjusted from an opening standby position to a pressing working position in advance, and the stable penetration is guaranteed. After the threading is finished and the tape head is wound on the winding drum of the first coiler 401, the swing arm hydraulic cylinder of the metal tape traction device 1 lifts the tape head to a standby position, and the high-temperature baking is reduced.
A metal strip drawing device may be disposed between the coilers of the coiler group 4 as necessary.
Example 2
As shown in fig. 2, in comparison with embodiment 1, embodiment 2 has 3 surface traction belt drive mechanisms in each of the guide mechanisms on the upper and lower sides of the metal belt, that is, 3 surface traction belt drive mechanisms are disposed on each of the upper and lower sides of the metal belt 5.
Example 3
As shown in fig. 3, in example 3, compared with example 1, the guide mechanism on the upper side of the metal strip includes 3 surface traction belt drive mechanisms, and the guide mechanisms on the lower side of the metal strip each include 1 surface traction belt drive mechanism.
Example 4
Compared with example 1, example 4 produced the metal strip with 0.6mm thickness, 1300mm width, 16.1m/s metal strip running speed, 17.5m/s linear speed of the upper surface traction belt 1013 and the lower surface traction belt 1023, and 400mm width.
Example 5
As shown in fig. 4, in example 5, compared to example 1, the upper surface traction belt drive mechanism includes a tension adjustment system 1014, which can improve the loosening, extension, and shaking of the conveyor belt generated by the upper surface traction belt drive mechanism in a high operating speed and high temperature environment, and the tension is adjusted by adjusting the height of the tension roller of the tension adjustment system 1014, so that the metal belt traction apparatus can operate stably.
Example 6
As shown in fig. 5, in example 6, compared with example 1, the lower side of the metal strip 5 is provided with the rollgang 6, and the rollgang 6 has stronger rigidity and supporting force than the surface traction, and can convey the metal strip with larger unit mass. The linear speed of the conveying roller way is consistent with that of the surface traction belt.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.

Claims (10)

1. A metal strip draw apparatus, characterized by: the device comprises a guide mechanism arranged on the upper side of a metal belt, wherein the guide mechanism comprises at least one surface traction belt transmission mechanism, the surface traction belt transmission mechanism comprises a surface traction belt, the surface traction belt and the theoretical position of the metal belt are spaced by a certain distance so as to enable the metal belt in a normal state to freely pass through, and the linear speed of the surface traction belt is not less than the production running speed of the metal belt so as to enable the upwarped metal belt to be flattened under the traction of friction force; the distance between the surface traction belt and the metal belt is fixed or adjustable.
2. A metal strip draw apparatus as defined in claim 1, wherein: the guide mechanism is movable to be lifted or pressed down to be away from or close to the metal strip according to production requirements.
3. A metal strip draw apparatus as defined in claim 1, wherein: the linear speed of the surface traction belt is adjustable.
4. A metal strip draw apparatus as defined in claim 1, wherein: lateral limiting mechanisms are arranged on two sides of the surface traction belt to prevent the surface traction belt from deviating.
5. A metal strip draw apparatus as defined in claim 1, wherein: the surface traction belt and the metal belt are arranged in parallel or obliquely at theoretical positions; when the metal strip is arranged obliquely, the distance between the surface traction belt and the metal strip is gradually reduced along the advancing direction of the metal strip.
6. A metal strip draw apparatus as defined in claim 1, wherein: the roller bed conveying device or the guide mechanism is arranged on the lower side of the metal belt to convey the metal belt, and when the guide mechanism is arranged on the lower side of the metal belt, the surface traction belt transmission mechanisms of the guide mechanisms on the upper side and the lower side of the metal belt are the same or different in number.
7. A metal strip draw apparatus as defined in claim 1, wherein: the width of the surface traction belt is not less than 0.3 time of the width of the metal belt, and the linear speed of the surface traction belt is 1-2 times of the production running speed of the metal belt; the friction coefficient between the surface traction belt and the metal belt is 0.2-0.9.
8. A metal strip draw apparatus as defined in claim 1, wherein: the friction coefficient between the surface traction belt and the metal belt ranges from 0.5 to 0.7.
9. A metal strip draw apparatus as defined in claim 1, wherein: the surface traction belt is made of heat-resistant material, and the heat-resistant temperature is not lower than 850 ℃.
10. The utility model provides a metal strip production line, includes slab attenuate unit, cutter and the coiling machine group that sets up in order along rolling direction, its characterized in that: a metal tape draw-off device as claimed in any one of claims 1 to 9 between the shear and the coiler group.
CN202210884112.2A 2022-07-26 2022-07-26 Metal belt traction device and metal belt production line Pending CN115301743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210884112.2A CN115301743A (en) 2022-07-26 2022-07-26 Metal belt traction device and metal belt production line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210884112.2A CN115301743A (en) 2022-07-26 2022-07-26 Metal belt traction device and metal belt production line

Publications (1)

Publication Number Publication Date
CN115301743A true CN115301743A (en) 2022-11-08

Family

ID=83859326

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210884112.2A Pending CN115301743A (en) 2022-07-26 2022-07-26 Metal belt traction device and metal belt production line

Country Status (1)

Country Link
CN (1) CN115301743A (en)

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