CN115161569B - Strip clamping and conveying three-roller device and strip clamping and conveying method for cooling section of air cushion furnace - Google Patents
Strip clamping and conveying three-roller device and strip clamping and conveying method for cooling section of air cushion furnace Download PDFInfo
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- CN115161569B CN115161569B CN202210585337.8A CN202210585337A CN115161569B CN 115161569 B CN115161569 B CN 115161569B CN 202210585337 A CN202210585337 A CN 202210585337A CN 115161569 B CN115161569 B CN 115161569B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll arrangements
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The invention relates to the technical field of heat treatment of aluminum alloy and copper alloy strips, in particular to a strip clamping and conveying three-roller device and a strip clamping and conveying method for a cooling section of an air cushion furnace. This air cushion furnace cooling section strip presss from both sides and send three roller device, because it includes two last rollers that the level set up to go up roller mechanism, lower roller mechanism includes a lower roll, roller setting is in the middle of two last rollers in vertical direction, when the strip when going up between roller and the lower roll through, the strip that makes lower roll jack-up pass through is gone up in the actuating mechanism drive and lower roll relative motion forms the structure of falling V-arrangement, and then make the surface of strip hug closely the roll face and effectively obstructed the cooling water and flowed to the air-cooled drying district when the strip that makes through the quenching has realized straightening and has pressed from both sides and send, and then avoided the quenching water to flow to the air-cooled drying section along with uneven high-speed strip, seriously influence the air-cooled drying effect, and make the surface of strip produce the problem of water stain defect and corruption.
Description
Technical Field
The invention relates to the technical field of heat treatment of aluminum alloy and copper alloy strips, in particular to a strip clamping and conveying three-roller device and a strip clamping and conveying method for a cooling section of an air cushion furnace.
Background
An air cushion type continuous heat treatment furnace (hereinafter referred to as an air cushion furnace) is an advanced heat treatment device and is used for carrying out continuous solution quenching heat treatment on metal and nonmetal strips such as high-end aluminum alloy, copper alloy and the like. The air cushion furnace has high production efficiency, and can produce the strip with high surface quality, high performance, high alloying, large size and grain refinement.
The aluminum alloy air cushion furnace is used for carrying out continuous solution quenching on 2xxx, 3xxx, 5xxx, 6xxx and 7xxx series aluminum alloys, and is heat treatment high-end high-precision equipment which only meets the requirements of heat treatment surface quality and performance uniformity of aluminum alloy automobile outer plates, airplane skins and high-grade IT plates. The copper alloy air cushion furnace is special heat treatment equipment for continuous solution quenching of high-end copper alloy strips such as integrated circuit lead frames, high-end connectors in the fields of aerospace, new energy automobiles and the like.
In the working process of the air cushion furnace, the heating section and the air cooling drying section heat and air cool dry the strip in the floating advancing process through the air cushion nozzle, and the water cooling nozzle is arranged between the heating section and the air cooling drying section and used for water quenching of 2XXX and 7XXX aluminum alloy strips with high critical cooling rate requirements. Because the distance between the upper water-cooling nozzles and the lower water-cooling nozzles of the strip is very small and is usually only 120mm, when the strip is quenched by water cooling, the pressure of cooling water is high (usually 0.4-1.0 MPa), the strip speed is high (40-120 m/min), and in order to prevent the surface of the strip from being scratched due to the fact that the high-speed strip floats up and down in a water quenching section, a pinch roll is generally arranged at an outlet of the water quenching section.
The existing pinch roll often generates large quenching deformation during water quenching of high-speed high-temperature strip materials, the strip materials have the plate shape problems of convex, concave, edge wave, middle wave, 1/4 wave, composite wave and the like after water quenching, the strip materials cannot be well pinched and the cooling water is blocked, the pinch roll cannot play a role in flattening the quenching plate shape, the quenching water flows to an air-cooled drying section along with the uneven high-speed strip materials, the air-cooled drying effect is seriously influenced, and the water stain defect and the corrosion are generated on the surface of an aluminum plate strip.
Disclosure of Invention
Technical problem to be solved
In view of the defects and shortcomings of the prior art, the invention provides a strip clamping and conveying three-roller device and a strip clamping and conveying method for a cooling section of an air cushion furnace, and solves the problems that quenching water flows to an air cooling drying section along with an uneven high-speed strip, the air cooling drying effect is seriously influenced, and the water stain defect and corrosion are generated on the surface of an aluminum strip.
(II) technical scheme
In order to achieve the purpose, the invention adopts the main technical scheme that:
the embodiment of the invention provides a strip pinch three-roller device at a cooling section of an air cushion furnace, which comprises a driving mechanism, an upper roller mechanism and a lower roller mechanism, wherein the upper roller mechanism and the lower roller mechanism are arranged up and down; the upper roller mechanism comprises two upper rollers which are horizontally arranged, the lower roller mechanism comprises a lower roller, the upper rollers and the lower roller are arranged in parallel, and the upper rollers and the lower rollers are arranged between the two upper rollers in the vertical direction; the driving mechanism drives the upper roller to rotate and drives the upper roller and the lower roller to move oppositely or oppositely along the vertical direction so as to adjust the coincidence quantity of the lowest point of the upper roller and the highest point of the lower roller to be used for compacting the strip.
Preferably, the driving mechanism comprises an upper roller lifting driving assembly and a lower roller lifting driving assembly; the upper roll lifting driving assembly comprises a first driving rod, first steering gears and a first lead screw, the first steering gears are respectively arranged on two sides of the first driving rod, the first lead screw penetrates through the first steering gears, the bottom end of the first lead screw is connected with the upper roll, and the first lead screw is connected with the first steering gears in a sliding mode so as to drive the upper roll to move up and down; the lower roll lifting driving assembly comprises a second driving rod, second steering gears and a second lead screw, the second steering gears are arranged on two sides of the second driving rod respectively, the second lead screw penetrates through the second steering gears, the top end of the second lead screw is connected with the lower roll, and the second lead screw is connected with the second steering gears in a sliding mode so as to drive the lower roll to move up and down.
Preferably, the driving mechanism further comprises an upper roller rotation driving assembly; the upper roll mechanism further comprises a first bearing assembly, the first bearing assembly comprises a first bearing seat and a first bearing rotatably connected with the first bearing seat, two ends of the upper roll respectively extend into the first bearing and are rotatably connected with the first bearing, and a first lead screw is connected with the first bearing seat; the upper roller rotating driving component is connected with one end of the upper roller to drive the upper roller to rotate; the lower roller mechanism also comprises a second bearing assembly, the second bearing assembly comprises a second bearing seat and a second bearing rotationally connected with the second bearing seat, two ends of the lower roller respectively extend into the second bearing and are rotationally connected with the second bearing, and a second lead screw is connected with the second bearing seat.
Preferably, the bottom end of the first lead screw is connected with the first bearing seat through a first fixing frame; the top end of the second lead screw is connected with the second bearing seat through a second fixing frame.
Preferably, the furnace body fixing frame comprises two furnace body fixing frames, wherein the two furnace body fixing frames are arranged on the inner walls of two opposite sides of the air cushion furnace; the two first steering gears are respectively fixed on the two furnace body fixing frames; the two second steering gears are respectively fixed on the two furnace body fixing frames.
Preferably, displacement sensors are arranged on the side walls of the first steering gear and the second steering gear.
Preferably, the outer walls of the upper roller and the lower roller are both provided with rubber layers.
Preferably, the thickness of the rubber layer is 15mm or more.
Preferably, the upper and lower rolls are identical in structure; the outer diameter of the upper roller is more than or equal to 150mm.
The invention also provides a strip clamping and conveying method for the cooling section of the air cushion furnace, which adopts the three-roller device, one group of three-roller devices is arranged between the water quenching nozzle of the water quenching area of the air cushion furnace and the first air cushion nozzle of the air cooling drying area of the air cushion furnace, and the other group of three-roller devices is arranged between the first air cushion nozzle and the second air cushion nozzle of the air cooling drying area of the air cushion furnace;
the method comprises the following steps;
s1, when a strip is quenched by water, a driving mechanism drives an upper roller to rotate, and the linear speed of the roller surface of the upper roller is the same as the linear speed of the running of the strip;
s2, determining a proper overlapping amount delta h between the upper roller and the lower roller according to material data of the strip and the running speed of the strip;
s3, the strip penetrates through the space between the upper roller and the lower roller, and the driving mechanism drives the upper roller and the lower roller to move oppositely along the vertical direction, so that the lower roller jacks the passing strip to form an inverted V-shaped structure and the overlapping quantity delta h is achieved;
s4, when the seam between two adjacent coils of strips passes through the three-roller device, the driving mechanism drives the upper roller to quickly ascend, the driving mechanism drives the lower roller to quickly descend, and after the seam passes through, the driving mechanism drives the lower roller to quickly descend according to the overlapping amount delta h of the next coil of strips next Adjusting the distance between the upper roller and the lower roller;
and S5, when the strip does not need water quenching and only needs air cooling, the driving mechanism drives the upper roller and the lower roller to move oppositely so as to open to a proper position.
(III) advantageous effects
The invention has the beneficial effects that:
the invention provides a strip clamping and conveying three-roller device for a cooling section of an air cushion furnace, wherein an upper roller mechanism comprises two upper rollers which are horizontally arranged, a lower roller mechanism comprises a lower roller, the upper roller and the lower roller are arranged between the two upper rollers in the vertical direction, when a strip passes between the upper roller and the lower roller, a driving mechanism drives the upper roller and the lower roller to move oppositely so that the lower roller jacks up the passing strip to form an inverted V-shaped structure, the surface of the strip is tightly attached to the surface of the roller while the strip which is subjected to water quenching is straightened and clamped, so that the flow of cooling water to an air-cooled drying area is effectively blocked, the problem that the quenching water flows to the air-cooled drying section along with the uneven high-speed strip is avoided, the air-cooled drying effect is seriously influenced, and the problems that the water stain defect and the corrosion are generated on the surface of the strip are solved.
When the strip passes between the upper roller and the lower roller, the driving mechanism drives the upper roller and the lower roller to move oppositely so that the lower roller jacks up the passing strip to form an inverted V-shaped structure, and the surface of the strip is tightly attached to the surface of the roller to effectively block cooling water from flowing to an air-cooled drying area while the water-quenched strip is conveyed in a straightening and clamping manner, so that the problems that quenching water flows to the air-cooled drying section along with uneven high-speed strips, the air-cooled drying effect is seriously influenced, and the surface of the strip is subjected to water stain defects and corrosion are solved. And the running speed of the upper roller is determined according to the running speed of the strip, the proper coincidence quantity delta h between the upper roller and the lower roller is determined according to material data such as chemical composition, thickness, yield strength and the like of the strip, a certain plate shape straightening effect is also realized on the strip subjected to quenching deformation, and the flatness of the strip entering the air-cooled drying section is ensured.
Drawings
FIG. 1 is a schematic structural view of a strip pinch three-roller device at a cooling section of an air cushion furnace;
FIG. 2 is a schematic end view of a strip pinch three-roller device applied to a cooling section of an air cushion furnace;
fig. 3 is a schematic structural diagram of the strip pinch three-roll device applied to the cooling section of the air cushion furnace.
[ instruction of reference ]
1: an upper roll mechanism; 11: an upper roll; 12: a first bearing assembly;
2: a lower roll mechanism; 21: a lower roll; 22: a second bearing assembly;
3: an upper roll lifting drive assembly; 31: a first drive lever; 32: a first diverter; 33: a first lead screw; 34: a first drive motor;
4: a lower roll lifting drive assembly; 41: a second drive lever; 42: a second diverter; 43: a second lead screw; 44: a second drive motor; 45, a first step of; a traveler;
5: the upper roller rotates the driving component; 51: a reduction motor; 52: a commutator; 53: a coupling;
6: a first fixing frame;
7: a second fixing frame;
8: a furnace body fixing frame;
9: a displacement sensor;
a: water quenching nozzles;
b: a first cushion nozzle;
c: a second air cushion nozzle;
d: a strip of material.
Detailed Description
In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
Example one
As shown in fig. 1, an embodiment of the present invention provides a strip pinch three-roller device for a cooling section of an air cushion furnace, including a driving mechanism, and an upper roller mechanism 1 and a lower roller mechanism 2 which are arranged up and down.
The upper roller mechanism 1 comprises two upper rollers 11 which are horizontally arranged, the lower roller mechanism 2 comprises a lower roller 21, the upper rollers 11 and the lower roller 21 are arranged in parallel, referring to fig. 2, in the vertical direction, the lower roller 21 is arranged between the two upper rollers 11, in the practical application process, a strip D passes through the space between the upper rollers 11 and the lower roller 21, the driving mechanism drives the upper rollers 11 to rotate, and meanwhile, the driving mechanism can drive the upper rollers 11 and the lower roller 21 to move oppositely or oppositely along the vertical direction to adjust the height difference between the lowest point of the upper rollers 11 and the highest point of the lower roller 21, namely, the overlapping amount of the upper rollers 11 and the lower roller 21 in the horizontal direction is used for compressing the strip D.
As shown in fig. 2, the three-roller device is pinched to air cushion furnace cooling zone strip that this embodiment provided, because last roller mechanism 1 includes two last rollers 11 that the level set up, lower roller mechanism 2 includes a lower roll 21, lower roll 21 sets up in the middle of two last rollers 11 in the vertical direction, when strip D passes through between last roller 11 and lower roll 21, actuating mechanism drive last roller 11 and lower roll 21 make lower roll 21 jack-up strip D that passes through form the structure of falling V along vertical direction relative motion, and then make strip D through the water quenching realize straightening pinch and make the surface of strip D hug closely the roll face and effectively obstruct the cooling water to flow to the forced air cooling drying area, and then avoided the quenching water to flow to the drying zone along with uneven strip D flow, seriously influence the forced air cooling drying effect, and make the surface of strip D produce the problem of water stain defect and corruption.
As shown in fig. 1, the driving mechanism includes an upper roll elevation driving assembly 3, an upper roll rotation driving assembly 5, and a lower roll elevation driving assembly 4. Wherein, go up roller lift drive assembly 3 and include first actuating lever 31, set up respectively at the first steering gear 32 of first actuating lever 31 both sides and wear to establish first lead screw 33 in first steering gear 32, the bottom of first lead screw 33 is connected with last roller 11, first lead screw 33 and first steering gear 32 sliding connection are in order to drive the ascending and descending motion of last roller 11. Of course, the upper roll lifting driving assembly 3 further comprises a first driving motor 34 for simultaneously driving the first steering gears 32 on both sides to move through the first driving rod 31.
The lower roll lifting drive assembly 4 comprises a second drive rod 41, second steering gears 42 respectively arranged on two sides of the second drive rod 41, and a second lead screw 43 arranged in the second steering gears 42 in a penetrating manner, wherein the top end of the second lead screw 43 is connected with the lower roll 21, and the second lead screw 43 is connected with the second steering gears 42 in a sliding manner so as to drive the lower roll 21 to move up and down. Of course, the lower roll lifting drive assembly 4 further includes a second drive motor 44, and the second drive motor 44 drives the second steering gears 42 on both sides to move simultaneously through the second drive rod 41.
The upper roll rotation driving assembly 5 comprises a speed reducing motor 51 and two commutators 52, the commutators 52 are connected in series and then connected with the speed reducing motor 51, the commutators 52 are connected with one end of the upper roll 11 through a coupling 53, wherein the coupling 53 is preferably a ball cage coupling, and one end of the coupling 53 can move up and down.
In order to facilitate the installation of the bearing seats and ensure that the two upper rollers 11 are on the same horizontal plane, the three-roller device comprises a group of first fixing frames 6 which are oppositely arranged and at the same height and a group of second fixing frames 7 which are oppositely arranged and at the same height, the second fixing frames 7 are arranged below the first fixing frames 6, the bottom end of the first lead screw 33 is connected with the first bearing seats through the first fixing frames 6, namely, the two first bearing seats at the same side are connected with the same first fixing frame 6. The top end of the second lead screw 43 is connected with the second bearing seat through the second fixing frame 7.
In the process of practical application, in order to ensure that the lead screw drives the fixing frame to operate stably and further ensure the stability of the up-and-down operation of the upper roller 11 and the lower roller 21, the three-roller device further comprises a sliding column 45, and one side of the first fixing frame 6 and one side of the second fixing frame 7 are sleeved on the sliding column 45, so that the positioning is increased. In order to further prevent the upper roller 11 and the lower roller 21 from shaking during operation, elastic members are provided in both the first fixing frame 6 and the second fixing frame 7.
In order to facilitate installation, the three-roller device further comprises two furnace body fixing frames 8, the two furnace body fixing frames 8 are arranged on the inner walls of the two opposite sides of the air cushion furnace, the two first steering gears 32 are fixed on the two furnace body fixing frames 8 through mounting frames respectively, and the same two second steering gears 42 are fixed on the two furnace body fixing frames 8 through mounting frames respectively. In the practical application process, the sliding column 45 is installed on the furnace body fixing frame 8 through a connecting plate.
In order to ensure the normal feeding of the strip D, the upper roller 11 and the lower roller 21 are capable of rotating on their own axes, wherein the upper roller mechanism 1 includes first bearing assemblies 12 respectively disposed at both axial ends of the upper roller 11, and the lower roller mechanism 2 includes second bearing assemblies 22 respectively disposed at both axial ends of the lower roller 21.
Specifically, the first bearing assembly 12 includes a first bearing seat and a first bearing rotatably connected to the first bearing seat, two ends of the upper roller 11 respectively extend into the first bearing and are rotatably connected to the first bearing seat, the first lead screw 33 is connected to the first bearing seat, and the upper roller rotation driving assembly 5 is connected to one end of the upper roller 11 to drive the upper roller 11 to rotate. The second bearing assembly 22 comprises a second bearing seat and a second bearing rotatably connected with the second bearing seat, two ends of the lower roller 21 respectively extend into the second bearing and are rotatably connected with the second bearing seat, and the second lead screw 43 is connected with the second bearing seat. In this embodiment, the upper roller 11 is actively rotated and the lower roller 21 is passively rotated.
In the embodiment, the upper roller 11 and the lower roller 21 have the same structure, the outer walls of the upper roller 11 and the lower roller 21 are both provided with rubber layers, the temperature resistance of the rubber layers is more than or equal to 250 ℃, the surface hardness of the rubber layers is 75-80, the thickness of the rubber layers is more than or equal to 15mm, and the outer diameters of the upper roller 11 and the lower roller 21 are more than or equal to 150mm, so that the service lives of the upper roller 11 and the lower roller 21 are prolonged, the strip D is prevented from being scratched, and the processing precision of the strip D is improved.
Example two
In this embodiment, two sets of three-roller devices in the first embodiment are adopted, as shown in fig. 3, one set of three-roller device is arranged between a water quenching nozzle a in a water quenching area of the air cushion furnace and a first air cushion nozzle B in an air cooling drying area of the air cushion furnace, and the other set of three-roller device is arranged between the first air cushion nozzle B and a second air cushion nozzle C in an air cooling drying area of the air cushion furnace.
The specific method comprises the following steps;
s1, when a strip D is quenched by water, a driving mechanism drives an upper roller 11 to rotate, the linear velocity of the roller surface of the upper roller 11 is the same as the running linear velocity of the strip D, and therefore the strip D is prevented from being scratched by relative sliding;
s2, determining a proper overlapping amount delta h between the upper roller 11 and the lower roller 21 according to the material data of the strip D and the running speed of the strip D;
s3, the strip D penetrates between the upper roller 11 and the lower roller 21, and the driving mechanism drives the upper roller 11 and the lower roller 21 to move in opposite directions along the vertical direction, so that the lower roller 21 jacks up the passing strip D to form an inverted V-shaped structure and the overlapping weight delta h is achieved;
s4, when the sewing seam between two adjacent coils of strip materials D passes through the three-roller device, the driving mechanism drives the upper roller 11 to quickly rise, the driving mechanism drives the lower roller 21 to quickly fall, and after the sewing seam passes, the driving mechanism drives the lower roller to quickly fall according to the overlapping quantity delta h of the next coil of strip material D next Adjusting the distance between the upper roller 11 and the lower roller 21;
and S5, when the strip D does not need water quenching and only needs air cooling, the driving mechanism drives the upper roller 11 and the lower roller 21 to move oppositely along the vertical direction so as to be opened to a proper position.
The embodiment provides a strip clamping and conveying method for a cooling section of an air cushion furnace, when a strip D passes between an upper roller 11 and a lower roller 21, a driving mechanism drives the upper roller 11 and the lower roller 21 to move in opposite directions so that the lower roller 21 jacks up the passing strip D to form an inverted V-shaped structure, and then the water-quenched strip D is straightened and clamped, and meanwhile, the surface of the strip D is tightly attached to the roller surface to effectively prevent cooling water from flowing to an air-cooled drying area, so that the problem that the air-cooled drying effect is seriously influenced due to the fact that quenching water flows to the air-cooled drying section along with an uneven high-speed strip D is solved, and the problem that the surface of the strip D is water-stained and corroded is caused. And the running speed of the upper roller 11 is determined according to the running speed of the strip D, the proper coincidence quantity delta h between the upper roller 21 and the lower roller 21 is determined according to material data such as chemical composition, thickness, yield strength and the like of the strip D, a certain plate shape straightening effect is also realized on the strip D subjected to quenching deformation, and the flatness of the strip D entering the air-cooled drying section is ensured.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; either as communication within the two elements or as an interactive relationship of the two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, and the first and second features may be in direct contact, or the first and second features may be in indirect contact via an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lower level than the second feature.
In the description herein, the description of the terms "one embodiment," "some embodiments," "an embodiment," "an example," "a specific example" or "some examples" or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it should be understood that the above embodiments are illustrative and not restrictive, and that those skilled in the art may make changes, modifications, substitutions and alterations to the above embodiments without departing from the scope of the present invention.
Claims (9)
1. A strip clamping and conveying method for a cooling section of an air cushion furnace is characterized in that two groups of three-roller devices are adopted, one group of three-roller devices is arranged between a water quenching nozzle of a water quenching area of the air cushion furnace and a first air cushion nozzle of an air cooling drying area of the air cushion furnace, and the other group of three-roller devices is arranged between the first air cushion nozzle and a second air cushion nozzle of the air cooling drying area of the air cushion furnace;
the three-roller device comprises a driving mechanism, an upper roller mechanism and a lower roller mechanism which are arranged up and down;
the upper roller mechanism comprises two upper rollers which are horizontally arranged, the lower roller mechanism comprises a lower roller, the upper rollers and the lower roller are arranged in parallel, and the lower roller is arranged between the two upper rollers in the vertical direction;
the driving mechanism drives the upper roller to rotate and drives the upper roller and the lower roller to move oppositely or oppositely along the vertical direction so as to adjust the overlapping amount of the lowest point of the upper roller and the highest point of the lower roller to be used for pressing the strip;
the method comprises the following steps;
s1, when a strip is quenched by water, the driving mechanism drives the upper roller to rotate, and the linear velocity of the roller surface of the upper roller is the same as the linear velocity of the operation of the strip;
s2, determining a proper overlapping amount delta h between the upper roller and the lower roller according to the material data of the strip and the running speed of the strip;
s3, the strip passes through the space between the upper roller and the lower roller, and the driving mechanism drives the upper roller and the lower roller to move oppositely along the vertical direction, so that the lower roller jacks up the passing strip to form an inverted V-shaped structure and the overlapping weight delta h is reached;
s4, when the sewing seam between two adjacent coils of strips passes through the three-roller device, the driving mechanism drives the upper roller to quickly rise, the driving mechanism drives the lower roller to quickly fall, and after the sewing seam passes, the driving mechanism drives the driving mechanism to quickly fall according to the overlapping amount delta h of the next coil of strips next Adjusting the distance between the upper roller and the lower roller;
and S5, when the strip does not need water quenching and only needs air cooling, the driving mechanism drives the upper roller and the lower roller to move oppositely so as to open the upper roller and the lower roller to a proper position.
2. The method of claim 1, wherein the driving mechanism comprises an upper roller elevating driving assembly and a lower roller elevating driving assembly;
the upper roll lifting driving assembly comprises a first driving rod, first steering gears and a first lead screw, the first steering gears are respectively arranged on two sides of the first driving rod, the first lead screw penetrates through the first steering gears, the bottom end of the first lead screw is connected with the upper roll, and the first lead screw is connected with the first steering gears in a sliding mode so as to drive the upper roll to move up and down;
the lower roll lifting driving assembly comprises a second driving rod, second steering gears and a second lead screw, the second steering gears are arranged on two sides of the second driving rod respectively, the second lead screw penetrates through the second steering gears, the top end of the second lead screw is connected with the lower roll, and the second lead screw is connected with the second steering gears in a sliding mode so as to drive the lower roll to move up and down.
3. The method of claim 2, wherein the drive mechanism further comprises an upper roller rotation drive assembly;
the upper roll mechanism further comprises a first bearing assembly, the first bearing assembly comprises a first bearing seat and a first bearing rotatably connected with the first bearing seat, two ends of the upper roll respectively extend into the first bearing and are rotatably connected with the first bearing, and the first lead screw is connected with the first bearing seat;
the upper roller rotating driving assembly is connected with one end of the upper roller to drive the upper roller to rotate;
the lower roll mechanism further comprises a second bearing assembly, the second bearing assembly comprises a second bearing seat and a second bearing rotatably connected with the second bearing seat, two ends of the lower roll respectively extend into the second bearing and are rotatably connected with the second bearing, and the second lead screw is connected with the second bearing seat.
4. A strip material clamping and conveying method for a cooling section of an air cushion furnace according to claim 3, characterized by comprising the following steps: the bottom end of the first lead screw is connected with the first bearing seat through a first fixing frame;
the top end of the second lead screw is connected with the second bearing seat through a second fixing frame.
5. The strip clamping and conveying method for the cooling section of the air cushion furnace according to claim 2, characterized by further comprising two furnace body fixing frames, wherein the two furnace body fixing frames are arranged on the inner walls of the two opposite sides of the air cushion furnace;
the two first steering gears are respectively fixed on the two furnace body fixing frames;
the two second steering gears are respectively fixed on the two furnace body fixing frames.
6. The strip material clamping and conveying method for the cooling section of the air cushion furnace as claimed in claim 2, wherein displacement sensors are arranged on the side walls of the first diverter and the second diverter.
7. The strip material clamping and conveying method for the cooling section of the air cushion furnace as claimed in claim 1, wherein: the outer walls of the upper roller and the lower roller are both provided with rubber layers.
8. The strip material clamping and conveying method for the cooling section of the air cushion furnace as claimed in claim 7, wherein: the thickness of the rubber layer is more than or equal to 15mm.
9. The strip material clamping and conveying method for the cooling section of the air cushion furnace as claimed in claim 7, wherein: the upper roller and the lower roller have the same structure;
the outer diameter of the upper roller is larger than or equal to 150mm.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210585337.8A CN115161569B (en) | 2022-05-26 | 2022-05-26 | Strip clamping and conveying three-roller device and strip clamping and conveying method for cooling section of air cushion furnace |
| DE202022107003.2U DE202022107003U1 (en) | 2022-05-26 | 2022-12-14 | Three-roll device for clamping the strip in a cooling section of an air cushion furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210585337.8A CN115161569B (en) | 2022-05-26 | 2022-05-26 | Strip clamping and conveying three-roller device and strip clamping and conveying method for cooling section of air cushion furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115161569A CN115161569A (en) | 2022-10-11 |
| CN115161569B true CN115161569B (en) | 2023-02-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210585337.8A Active CN115161569B (en) | 2022-05-26 | 2022-05-26 | Strip clamping and conveying three-roller device and strip clamping and conveying method for cooling section of air cushion furnace |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115161569B (en) |
| DE (1) | DE202022107003U1 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259205A (en) * | 2014-09-29 | 2015-01-07 | 中冶南方工程技术有限公司 | Three-roller strip head forming device with pinching function |
| CN111922123A (en) * | 2020-08-31 | 2020-11-13 | 日照宝华新材料有限公司 | Device for improving transverse fold defect of straightening strip steel for acid leveling machine set |
-
2022
- 2022-05-26 CN CN202210585337.8A patent/CN115161569B/en active Active
- 2022-12-14 DE DE202022107003.2U patent/DE202022107003U1/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104259205A (en) * | 2014-09-29 | 2015-01-07 | 中冶南方工程技术有限公司 | Three-roller strip head forming device with pinching function |
| CN111922123A (en) * | 2020-08-31 | 2020-11-13 | 日照宝华新材料有限公司 | Device for improving transverse fold defect of straightening strip steel for acid leveling machine set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115161569A (en) | 2022-10-11 |
| DE202022107003U1 (en) | 2023-04-04 |
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