CN109013703B - Two-segmentation high-speed head-cutting and breaking shearing device and working method thereof - Google Patents
Two-segmentation high-speed head-cutting and breaking shearing device and working method thereof Download PDFInfo
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- CN109013703B CN109013703B CN201811105945.4A CN201811105945A CN109013703B CN 109013703 B CN109013703 B CN 109013703B CN 201811105945 A CN201811105945 A CN 201811105945A CN 109013703 B CN109013703 B CN 109013703B
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- 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
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Abstract
The invention discloses a two-segmentation high-speed head-cutting breaking shearing device, which belongs to the technical field of screw steel rolling equipment and comprises a line A high-speed head-cutting breaking shearing device and a line B high-speed head-cutting breaking shearing device; the line A high-speed head cutting and breaking shearing device and the line B high-speed head cutting and breaking shearing device are distributed on two sides of the rolling line; the double-wire guide groove I is arranged on the outlet guide groove I of the A-wire high-speed head cutting and breaking shearing device; the double-wire guide groove II is arranged in front of the inlet of the double-wire guide groove I; the double-wire guide groove III is arranged in front of the inlet of the double-wire guide groove II; the double-line guide groove IV is arranged at the inlet position of the two-segmentation high-speed head-cutting and breaking shearing device. The invention also discloses a working method of the device. The steel running speed can reach 6m/s when sheared, so that the shearing efficiency is improved; two steel materials which are split respectively move through independent channels, and can be sheared simultaneously; the method of the invention realizes two working modes of head cutting and breaking on one set of equipment, reduces equipment investment cost and shortens the length of a rolling process line.
Description
Technical Field
The invention belongs to the technical field of deformed steel bar rolling equipment, and particularly relates to a two-splitting high-speed head-cutting and breaking shearing device and a working method thereof.
Background
The deformed steel bar is a reinforcing steel bar with ribs on the surface, which is also called as a ribbed reinforcing steel bar, and is usually provided with two longitudinal ribs and transverse ribs uniformly distributed along the length direction, the nominal diameter of the reinforcing steel bar is generally 8-50 mm, the ribbed reinforcing steel bar mainly bears tensile stress in concrete, and the ribbed reinforcing steel bar has larger bonding capability with the concrete due to the action of the ribs, so that the deformed steel bar can bear the action of external force better, and is widely used for civil engineering construction of houses, bridges, roads and the like. Up to public facilities such as highways, railways, bridges, culverts, tunnels, flood control, dams and the like, down to foundations, beams, columns, walls and boards of house buildings, and screw steels are indispensable structural materials.
Deformed steel bars are produced by small rolling mills, the main types of which are divided into: continuous, semi-continuous and tandem rolling mills are now being built and in use in full continuous small size. The blank used in the continuous small rolling mill is a continuous casting billet, the side length of the billet is 130-160 mm, the length of the billet is 6-12 m, and the single weight of the blank is 1.5-3 tons. Most of rolling lines are arranged in a flat-overpass manner, so that all-line torsion-free rolling is realized.
According to the small rolling mill with 18, 20, 22 and 24 frames according to different blank specifications and finished product sizes, the 18 frames are main streams and are divided into rough rolling, medium rolling and finish rolling groups, in order to improve rolling precision, speed and the requirements of handling steel stacking accidents, a 1# head cutting shear is generally arranged between the rough rolling and medium rolling groups, a 2# head cutting shear and a breaking shear are arranged between the medium rolling and the finish rolling, the steel is cut off under the actions of the head cutting shear and the breaking shear, only the working occasion and the mode are different, and the repeated configuration simultaneously prolongs the rolling production line and increases the investment cost of equipment.
Disclosure of Invention
The invention aims to: in order to solve the problems in the prior art, the invention provides a two-segmentation high-speed head-cutting and breaking shearing device, which shortens the production line of a rolling process, saves equipment investment and meets the purpose of high-speed shearing; it is a further object of the invention to provide a method of operation thereof.
The technical scheme is as follows: in order to achieve the above purpose, the present invention adopts the following technical scheme:
a two-segmentation high-speed head cutting and breaking shearing device comprises an A-line high-speed head cutting and breaking shearing device, a B-line high-speed head cutting and breaking shearing device, a double-line guide groove I, a double-line guide groove II, a double-line guide groove III and a double-line guide groove IV; the line A high-speed head cutting and breaking shearing device and the line B high-speed head cutting and breaking shearing device are distributed on two sides of the rolling line; the first double-wire guide groove is arranged on the first outlet guide groove of the A-wire high-speed head cutting and breaking shearing device; the second double-wire guide groove is arranged in front of the inlet of the first double-wire guide groove; the third double-wire guide groove is arranged in front of the second double-wire guide groove inlet; the double-line guide groove IV is arranged in front of an inlet of the double-line guide groove III at the inlet position of the double-segmentation high-speed head-cutting and breaking shearing device.
The double-line guide groove II is fixed on a first shearing machine of the A-line high-speed head-cutting and breaking shearing device by bolts; the three-purpose bolt of the double-wire guide groove is fixed on the second guide groove of the outlet guide groove of the B-wire high-speed head cutting and breaking shearing device; the double-line guide groove four is fixed on a second shearing machine of the B-line high-speed head-cutting and breaking shearing device through bolts.
The A-line high-speed head cutting and breaking shearing device comprises a pinch roll I, a swinging guide pipe I, a shearing machine I, an outlet guide groove I, a head cutting chute I and a collecting frame I; the pinch roll I is arranged at one side of an inlet of a starting point of the steel running direction; the first swinging guide pipe is arranged behind the first pinch roll and is fixed on the first shearing machine through a bolt, and swings around the first fixed shaft, when steel needs to be sheared or broken, the first swinging guide pipe swings towards the direction of the shearing machine, and at the moment, a shearing angle theta is formed between the center of the first swinging guide pipe and the rolling direction, and the shearing angle theta=3-5 degrees; the first shearing machine is arranged on the concrete foundation behind the first swinging guide pipe, is arranged at the center line of the first shearing machine and forms a shearing angle theta with the rolling line; the first outlet guide groove is arranged on the outlet side of the shearing machine; the first crop chute is arranged at the lower part of the outlet guide groove; the first collecting frame is arranged below the head cutting chute, and the head cutting and broken steel materials slide into the first collecting frame through the first head cutting chute to be collected.
The pinch roll I comprises a pinch roll body, an upper roll transmission device, a lower roll transmission device, a clamping device and a pinch roll sleeve; the pinch roll body is arranged on a concrete foundation, the upper roll transmission device is connected with the upper roll of the pinch roll body to transmit power, the lower roll transmission device is connected with the lower roll of the pinch roll body to transmit power, and the pinch roll sleeve is arranged on the pinch roll body.
The first swinging guide pipe comprises a guide pipe, a servo driving device and a fixed shaft; one end of the guide pipe is connected with the servo driving device, the other end of the guide pipe is connected with the fixed shaft, and the servo driving device and the fixed shaft are fixed on the first shearing machine through bolts; the guide pipe swings around the fixed shaft under the drive of the servo driving device, and swings towards the direction of the shearing machine during shearing.
The first shearing machine comprises a body, a transmission device, an upper shearing head, a lower shearing head and a base, wherein the body is fixedly arranged on the base through bolts; the upper shear head and the lower shear head are in a rotary drum type, and two shear blades are symmetrically arranged on the rotary drum; the first shearing position of the shearing machine deviates from the rolling center, and the first steel material is guided into the rolling center by the first swinging guide pipe during shearing.
The B-line high-speed head cutting and breaking shearing device comprises a pinch roll II, a swinging guide pipe II, a shearing machine II, an outlet guide groove II, a head cutting chute II and a collecting frame II; the second pinch roll is arranged at one side of the inlet; the swing guide pipe II is arranged behind the pinch roll II and is fixed on the shearing machine II by bolts; when the steel needs to be cut or broken, the swinging guide pipe swings in two directions of the shearing machine; the second shearing machine is arranged behind the second swinging guide pipe and is arranged on the concrete foundation, and is used for cutting off or breaking the steel materials; the second outlet guide groove is arranged at the outlet side of the first shearing machine; the second crop chute is arranged at the lower part of the second outlet guide groove; the second collecting frame is arranged below the second crop chute, and the cut and broken steel materials slide into the second collecting frame through the second crop chute to be collected.
A working method of a two-segmentation high-speed head-cutting and breaking shearing device comprises the following steps:
1) Simultaneous shearing of two cut steels
The A-wire high-speed head cutting and breaking shearing device, the double-wire guide groove I, the double-wire guide groove II, the double-wire guide groove III and the double-wire guide groove IV form an independent A-wire steel advancing channel; the B-line high-speed head cutting and breaking shearing device forms an independent B-line steel advancing channel with the B-line guide groove I, the two-line guide groove II, the two-line guide groove III and the two-line guide groove IV, and the two channels are mutually independent and pass through steel at the same time, so that the shearing process is realized by the shearing machine I and the shearing machine II respectively;
2) Realizing high-speed shearing of steel
The steel running speed of the second-segmentation high-speed head-cutting and breaking shearing device is 6m/s; the first shearing machine and the second shearing machine adopt a continuous operation working system, and simultaneously adopt upper shearing heads and lower shearing heads of the first shearing machine and the second shearing machine adopt a rotary drum type;
3) Realize two working modes of crop cutting and breaking
The head cutting mode is a working state when steel rolling is normal, for line A, after steel comes out of a rolling mill, the steel firstly enters a first pinch roll to provide power for advancing the steel and a correct position, the steel comes out of the pinch roll and enters a first swinging guide pipe, at the moment, the swinging guide pipe swings a shearing angle theta in one direction of a shearing machine to guide the steel into a shearing position, then the head of the steel is cut off by the first shearing machine, meanwhile, the swinging guide pipe swings backwards to guide the steel with the head cut back to a rolling line, the steel enters a next working procedure through a first outlet guide groove, and a head cutting part of the steel slides into a first collecting frame through a first head cutting chute; for line B, when steel comes out from the rolling mill, the steel firstly enters a pinch roll II, the steel comes out from the pinch roll and then enters a swing guide pipe II, at the moment, the swing guide pipe swings towards the shearing angle theta in the second direction of the shearing machine to guide the steel into the shearing position, then the head of the steel is cut off by the second shearing machine, meanwhile, the swing guide pipe swings backwards to guide the steel with the head cut back to the rolling line, the steel enters the next working procedure through an outlet guide groove, and the head cutting part of the steel slides into a collecting frame II through a head cutting chute II.
For the line A, the breaking mode is the working state when steel rolling fails, steel is guided into the swing guide pipe I8 through the pinch roll I, at the moment, the swing guide pipe swings towards the shearing machine direction by the shearing angle theta to guide the steel into the shearing position, then the shearing machine continuously carries out breaking shearing until the whole steel is completely sheared, at the moment, the swing guide pipe swings back to the original position, and the broken steel slides into the collecting frame I through the head-cutting chute I.
And B, the breaking mode is a working state when steel rolling fails, the steel is led into a swing guide pipe II through a pinch roll II, at the moment, the steel is led into a shearing position by a swing shearing angle theta of a swing guide pipe II direction shearing machine II direction, then the shearing machine II continuously carries out breaking shearing until the whole steel is completely sheared, at the moment, the swing guide pipe is swung back to an original position, and the broken steel slides into a collecting frame II through a head cutting chute II.
The beneficial effects are that: compared with the prior art, the two-segmentation high-speed head-cutting and breaking shearing device adopts the rotary drum type shearing head, double shearing blades are arranged on the rotary drum, the shearing head continuously rotates, the purpose of high-speed continuous shearing is realized, the steel running speed can reach 6m/s during shearing, and the shearing efficiency is improved; meanwhile, the structure is simple and compact, and two steel materials which are split respectively move along independent channels and can be sheared simultaneously; the method of the invention realizes two working modes of head cutting and breaking on one set of equipment, reduces equipment investment cost and shortens the length of a rolling process line.
Drawings
FIG. 1 is an elevation view of a two-slice high-speed head-cutting and breaking shear device;
FIG. 2 is a plan view of a two-slice high-speed head-cutting and breaking shearing device;
FIG. 3 is a block diagram of a high-speed head-cutting and breaking shearing device for line A;
FIG. 4 is a block diagram of the pinch rolls;
FIG. 5 is a diagram of a swing catheter;
FIG. 6 is a block diagram of a shear;
FIG. 7 is a diagram of the structure of the upper and lower shears;
fig. 8 is a block diagram of a B-line high-speed head-cutting and breaking shearing device.
Detailed Description
The invention will be further described with reference to the accompanying drawings and examples of embodiments.
As shown in fig. 1-8, the reference numerals are as follows: a line high-speed head cutting and breaking shearing device 1, B line high-speed head cutting and breaking shearing device 2, two line guide grooves I3, two line guide grooves II 4, three line guide grooves I5, four line guide grooves I6, a first pinch roll 7, a first swinging guide pipe 8, a first shearing machine 9, a first outlet guide groove 10, a first head cutting chute 11, a first collecting frame 12, a pinch roll body 13, an upper roll driving device 14, a lower roll driving device 15, a clamping device 16, a pinch roll sleeve 17, a guide pipe 19, a servo driving device 20, a fixed shaft 21, a body 22, a driving device 23, an upper shearing head 24, a lower shearing head 25, a second base 26 pinch roll 27, a second swinging guide pipe 28, a second shearing machine 29, a second outlet guide groove 30, a second head cutting chute 31 and a second collecting frame 32.
1-2, a two-segmentation high-speed head cutting and breaking shearing device comprises a line A high-speed head cutting and breaking shearing device 1, a line B high-speed head cutting and breaking shearing device 2, a double-line guide groove I3, a double-line guide groove II 4, a double-line guide groove III 5 and a double-line guide groove IV 6; the line A high-speed head cutting and breaking shearing device 1 and the line B high-speed head cutting and breaking shearing device 2 are distributed on two sides of the rolling line; the double-line guide groove I3 is arranged at the outlet position of the two-segmentation high-speed head-cutting and breaking shearing device and is fixed on the outlet guide groove I10 of the line A high-speed head-cutting and breaking shearing device 1 by bolts; the double-line guide groove II 4 is arranged in front of the inlet of the double-line guide groove I3 and is fixed on a shearing machine I9 of the A-line high-speed head-cutting and breaking shearing device 1 by bolts; the third double-wire guide groove 5 is arranged in front of the inlet of the second double-wire guide groove 4 and is fixed on the second outlet guide groove 30 of the B-wire high-speed head cutting and breaking shearing device 2 by bolts; the double-line guide groove IV 6 is arranged at the inlet position of the second-segmentation high-speed head-cutting breaking shearing device and in front of the inlet of the double-line guide groove III 5 and is fixed on the second shearing machine 29 of the B-line high-speed head-cutting breaking shearing device 2 by bolts; the double-wire guide groove I3, the double-wire guide groove II 4, the double-wire guide groove III 5 and the double-wire guide groove IV 6 are used for supporting steel materials and guiding the steel materials.
As shown in fig. 3, the line a high-speed head-cutting and breaking shearing apparatus 1 includes: a pinch roll I7, a swinging guide pipe I8, a shearing machine I9, an outlet guide groove I10, a head cutting chute I11 and a collecting frame I12; the first pinch roll 7 is arranged at the inlet side of the starting point of the steel running direction and is used for providing power and correct position for steel to advance; the first swinging guide pipe 8 is arranged behind the first pinch roll 7, is fixed on the first shearing machine 9 by bolts and can swing around the first fixed shaft, when the steel needs to be cut or broken, the first swinging guide pipe 8 swings towards the first shearing machine 9, and at the moment, the center of the first swinging guide pipe 8 and the rolling direction form a shearing angle theta, and the shearing angle theta=3-5 degrees; the first shearing machine 9 is arranged behind the first swinging guide pipe 8 and is arranged on the concrete foundation, is deviated from the rolling line by a certain distance, is arranged at the center line and forms a certain angle with the rolling line, and the angle is equal to the shearing angle theta, and has the functions of cutting off or breaking the incoming steel; the first outlet guide groove 10 is arranged on the outlet side of the first shearing machine 9; the first crop chute 11 is arranged at the lower part of the first outlet guide groove 10; the first collecting frame 12 is arranged below the first head cutting chute 11, and the head-cut and broken steel materials slide into the first collecting frame 12 through the first head cutting chute 11 for collecting.
As shown in fig. 4, fig. 4 (1) is a front view of the pinch roll 7, and fig. 4 (2) is a side view of the pinch roll 7; pinch roll one 7, comprising: pinch roll body 13, upper roller transmission 14, lower roller transmission 15, clamping device 16, pinch roll cover 17. The pinch roll body 13 is arranged on a concrete foundation, the upper roll transmission device 14 is connected with the upper roll of the pinch roll body 13 and transmits power to the upper roll, the lower roll transmission device 15 is connected with the lower roll of the pinch roll body 13 and transmits power to the lower roll, and the pinch roll sleeve 17 is arranged on the pinch roll body 13. The detachable pinch roll sleeve 17 is adopted, so that the replacement is convenient and the consumption is reduced; the upper roller and the lower roller are adopted for transmission respectively, so that the adjustment is convenient.
As shown in fig. 5, the swing pipe one 8 includes: catheter 19, servo drive 20, fixed axle 21. One end of the guide pipe 19 is connected with the servo driving device 20, the other end is connected with the fixed shaft 21, and the servo driving device 20 and the fixed shaft 21 are fixed on the first shearing machine 9 by bolts. The guide tube 19 is swingable around the fixed shaft 21 by the servo drive device 20, and the guide tube 19 swings in the first 9 direction of the shearing machine during shearing.
As shown in fig. 6 and 7, the first shears 9 includes: the device comprises a body 22, a transmission device 23, an upper shear head 24, a lower shear head 25 and a base 26. The body 22 is fixedly mounted on the base 26 by bolts, the transmission device 23 is fixedly mounted on the base 26 by bolts and is connected with the body 22 to transmit power to the body, and the upper shear head 24 and the lower shear head 25 are mounted on the body 22 and are fixed by bolts. Fig. 7 (1) is a front view of the upper and lower heads 24, 25, and fig. 7 (2) is a side view of the upper and lower heads 24, 25; the upper shearing head 24 and the lower shearing head 25 are in a rotary drum type, two shearing edges are symmetrically arranged on the rotary drum, and the rotary drum continuously rotates all the time, so that high-speed shearing is realized; the shearing position of the first shearing machine 9 deviates from the rolling center, and the first swinging guide pipe 8 guides steel during shearing, so that the requirements of two working modes of steel head cutting and breaking are met.
As shown in fig. 8, the line B high-speed head-cutting and breaking shearing device 2 includes: the second pinch roll 27, the second swing guide pipe 28, the second shearing machine 29, the second outlet guide groove 30, the second crop chute 31 and the second collecting frame 32; the second pinch roll 27 is arranged at one side of the inlet and is used for providing power and correct position for steel to advance; the second swing guide pipe 28 is arranged behind the second pinch roll 27 and is fixed on the second shearing machine 29 by bolts, and can swing around the first fixed shaft, and when the steel needs to be cut or broken, the second swing guide pipe 28 swings towards the second shearing machine 29; the second shearing machine 29 is arranged behind the second swinging guide pipe 28 and is arranged on the concrete foundation and deviates from the rolling line by a certain distance, and the second shearing machine has the function of cutting off or breaking the steel materials; the second outlet guide groove 30 is arranged on the outlet side of the first shearing machine 29; the second crop chute 31 is arranged at the lower part of the second outlet guide groove 30; the second collecting frame 32 is arranged below the second head cutting chute 31, and the cut and broken steel materials slide into the second collecting frame 32 through the second head cutting chute 31 to be collected.
A working method of a two-segmentation high-speed head-cutting and breaking shearing device comprises the following steps:
1) Simultaneous shearing of two cut steels
The A-wire high-speed head cutting and breaking shearing device, the double-wire guide groove I, the double-wire guide groove II, the double-wire guide groove III and the double-wire guide groove IV form an independent A-wire steel advancing channel; the B-line high-speed head cutting and breaking shearing device forms an independent B-line steel advancing channel with the B-line guide groove I, the two-line guide groove II, the two-line guide groove III and the two-line guide groove IV, and the two channels are mutually independent and pass through steel at the same time, so that the shearing process is realized by the shearing machine I and the shearing machine II respectively;
2) Realizing high-speed shearing of steel
The steel running speed of the second-segmentation high-speed head-cutting and breaking shearing device is 6m/s; the first shearing machine and the second shearing machine adopt a continuous operation working system, and simultaneously adopt upper shearing heads and lower shearing heads of the first shearing machine and the second shearing machine adopt a rotary drum type;
3) Realize two working modes of crop cutting and breaking
The head cutting mode is a working state when steel rolling is normal, for line A, after steel comes out of a rolling mill, the steel firstly enters a first pinch roll to provide power for advancing the steel and a correct position, the steel comes out of the pinch roll and enters a first swinging guide pipe, at the moment, the swinging guide pipe swings a shearing angle theta in one direction of a shearing machine to guide the steel into a shearing position, then the head of the steel is cut off by the first shearing machine, meanwhile, the swinging guide pipe swings backwards to guide the steel with the head cut back to a rolling line, the steel enters a next working procedure through a first outlet guide groove, and a head cutting part of the steel slides into a first collecting frame through a first head cutting chute; for line B, when steel comes out from the rolling mill, the steel firstly enters a pinch roll II, the steel comes out from the pinch roll and then enters a swing guide pipe II, at the moment, the swing guide pipe swings towards the shearing angle theta in the second direction of the shearing machine to guide the steel into the shearing position, then the head of the steel is cut off by the second shearing machine, meanwhile, the swing guide pipe swings backwards to guide the steel with the head cut back to the rolling line, the steel enters the next working procedure through an outlet guide groove, and the head cutting part of the steel slides into a collecting frame II through a head cutting chute II.
For the line A, the breaking mode is the working state when steel rolling fails, steel is guided into the swing guide pipe I8 through the pinch roll I, at the moment, the swing guide pipe swings towards the shearing machine direction by the shearing angle theta to guide the steel into the shearing position, then the shearing machine continuously carries out breaking shearing until the whole steel is completely sheared, at the moment, the swing guide pipe swings back to the original position, and the broken steel slides into the collecting frame I through the head-cutting chute I.
And B, the breaking mode is a working state when steel rolling fails, the steel is led into a swing guide pipe II through a pinch roll II, at the moment, the steel is led into a shearing position by a swing shearing angle theta of a swing guide pipe II direction shearing machine II direction, then the shearing machine II continuously carries out breaking shearing until the whole steel is completely sheared, at the moment, the swing guide pipe is swung back to an original position, and the broken steel slides into a collecting frame II through a head cutting chute II.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that several derivatives or substitutions may be made without departing from the spirit of the invention, and all such derivatives or substitutions should be considered as being within the scope of the invention.
Claims (10)
1. A two segmentation high-speed crop breakage shearing mechanism, its characterized in that: the device comprises a line A high-speed head cutting and breaking shearing device (1), a line B high-speed head cutting and breaking shearing device (2), a double-line guide groove I (3), a double-line guide groove II (4), a double-line guide groove III (5) and a double-line guide groove IV (6); the A-line high-speed head-cutting and breaking shearing device (1) and the B-line high-speed head-cutting and breaking shearing device (2) are distributed on two sides of a rolling line; the first double-wire guide groove (3) is arranged on the first outlet guide groove (10) of the A-wire high-speed head cutting and breaking shearing device (1); the second double-wire guide groove (4) is arranged in front of the inlet of the first double-wire guide groove (3); the third double-wire guide groove (5) is arranged in front of the inlet of the second double-wire guide groove (4); the double-line guide groove IV (6) is arranged in front of the inlet of the double-line guide groove III (5) at the inlet of the two-segmentation high-speed head-cutting and breaking shearing device; the A-line high-speed head cutting and breaking shearing device (1) comprises a first pinch roll (7), a first swinging guide pipe (8), a first shearing machine (9), a first outlet guide groove (10), a first head cutting chute (11) and a first collecting frame (12); the pinch roll I (7) is arranged at one side of an inlet of a starting point in the steel running direction; the first swinging guide pipe (8) is arranged behind the first pinch roll (7), is fixed on the first shearing machine (9) through bolts, swings around the first fixing shaft, swings towards the first shearing machine (9) when steel needs to be cut or broken, and forms a shearing angle theta with the rolling direction at the center of the first swinging guide pipe (8), and the first shearing machine (9) is arranged behind the first swinging guide pipe (8), is arranged on a concrete foundation, and forms a shearing angle theta with a rolling line at the center of the shearing machine; the first outlet guide groove (10) is arranged on the outlet side of the first shearing machine (9); the first crop chute (11) is arranged at the lower part of the first outlet guide groove (10); the first collecting frame (12) is arranged below the first cutting chute (11), and cut and broken steel materials slide into the first collecting frame (12) through the first cutting chute (11) to be collected.
2. The two-segment high-speed head-cutting and breaking shearing device according to claim 1, wherein: the double-line guide groove II (4) is fixed on a shearing machine I (9) of the A-line high-speed head-cutting and breaking shearing device (1) through bolts; the double-line guide groove III (5) is fixed on the outlet guide groove II (30) of the B-line high-speed head cutting and breaking shearing device (2) through bolts; the double-line guide groove IV (6) is fixed on a second shearing machine (29) of the B-line high-speed head-cutting and breaking shearing device (2) through bolts.
3. The two-segment high-speed head-cutting and breaking shearing device according to claim 1, wherein: the shearing angle θ=3 to 5 °.
4. The two-segment high-speed head-cutting and breaking shearing device according to claim 1, wherein: the pinch roll I (7) comprises a pinch roll body (13), an upper roll transmission device (14), a lower roll transmission device (15), a clamping device (16) and a pinch roll sleeve (17); the pinch roll body (13) is arranged on a concrete foundation, an upper roll transmission device (14) is connected with an upper roll of the pinch roll body (13) to transmit power, a lower roll transmission device (15) is connected with a lower roll of the pinch roll body (13) to transmit power, and a pinch roll sleeve (17) is arranged on the pinch roll body (13).
5. The two-segment high-speed head-cutting and breaking shearing device according to claim 1, wherein: the swing guide pipe I (8) comprises a guide pipe (19), a servo driving device (20) and a fixed shaft (21); one end of the guide pipe (19) is connected with the servo driving device (20), the other end of the guide pipe is connected with the fixed shaft (21), and the servo driving device (20) and the fixed shaft (21) are fixed on the first shearing machine (9) through bolts; the guide pipe (19) swings around the fixed shaft (21) under the drive of the servo driving device (20), and the guide pipe (19) swings towards the first shearing machine (9) during shearing.
6. The two-segment high-speed head-cutting and breaking shearing device according to claim 1, wherein: the first shearing machine (9) comprises a body (22), a transmission device (23), an upper shearing head (24), a lower shearing head (25) and a base (26), wherein the body (22) is fixedly arranged on the base (26) through bolts, the transmission device (23) is fixedly arranged on the base (26) through bolts and is connected with the body (22) to transmit power to the body, and the upper shearing head (24) and the lower shearing head (25) are arranged on the body (22) and are fixed through bolts; the upper shear head (24) and the lower shear head (25) are in a rotary drum type, and two shear blades are symmetrically arranged on the rotary drum; the shearing position of the first shearing machine (9) deviates from the rolling center, and steel is guided in by the first swinging guide pipe (8) during shearing.
7. The two-segment high-speed head-cutting and breaking shearing device according to claim 1, wherein: the B-line high-speed head cutting and breaking shearing device (2) comprises a second pinch roll (27), a second swinging guide pipe (28), a second shearing machine (29), a second outlet guide groove (30), a second head cutting chute (31) and a second collecting frame (32); the second pinch roll (27) is arranged at one side of the inlet; the swing guide pipe II (28) is arranged behind the pinch roll II (27) and is fixed on the shearing machine II (29) by bolts; when the steel needs to be cut or broken, the swing guide pipe II (28) swings towards the direction of the shear II (29); the second shearing machine (29) is arranged behind the second swinging guide pipe (28) and is arranged on the concrete foundation, and is used for cutting the head or breaking the steel materials; the second outlet guide groove (30) is arranged on the outlet side of the first shearing machine (29); the second crop chute (31) is arranged at the lower part of the second outlet guide groove (30); the second collecting frame (32) is arranged below the second cutting chute (31), and cut and broken steel materials slide into the second collecting frame (32) through the second cutting chute (31) to be collected.
8. The method for operating a two-stage high-speed head-cutting and breaking shearing device as defined in claim 7, wherein: the method comprises the following steps:
1) Simultaneous shearing of two cut steels
The A-wire high-speed head cutting and breaking shearing device (1) and the double-wire guide groove I (3), the double-wire guide groove II (4), the double-wire guide groove III (5) and the double-wire guide groove IV (6) form an independent A-wire steel advancing channel; the B-line high-speed head cutting and breaking shearing device (2) and the B-line steel advancing channels of the two-line guide groove I (3), the two-line guide groove II (4), the two-line guide groove III (5) and the two-line guide groove IV (6) are respectively formed, the two channels are mutually independent and pass through steel at the same time, and the shearing process is realized by the shearing machine I (9) and the shearing machine II (29) at the same time;
2) Realizing high-speed shearing of steel
The high-speed shearing speed is 6m/s; the first shearing machine (9) and the second shearing machine (29) adopt a continuous operation working system, and simultaneously adopt the upper shearing head and the lower shearing head of the first shearing machine (9) and the second shearing machine (29) adopt a rotary drum type;
3) Realize two working modes of crop cutting and breaking
The head cutting mode is a working state when steel rolling is normal, for line A, after steel comes out of a rolling mill, the steel firstly enters a pinch roll I (7) to provide power for advancing the steel and a correct position, the steel comes out of the pinch roll and enters a swinging guide pipe I (8), at the moment, the swinging guide pipe I (8) swings a shearing angle theta towards a shearing machine I (9) to guide the steel into a shearing position, then the shearing machine I (9) cuts off the head of the steel, meanwhile, the swinging guide pipe I (8) swings backwards to guide the steel with the head cut back to a rolling line, the steel enters the next working procedure through an outlet guide groove I (10), and the head cutting part of the steel slides into a collecting frame I (12) through a head cutting chute I (11); for line B, when steel comes out of the rolling mill, the steel firstly enters a second pinch roll (27), the steel comes out of the pinch roll and enters a second swinging guide pipe (28), at the moment, the second swinging guide pipe (28) swings a shearing angle theta towards a second shearing machine (29) to guide the steel into a shearing position, then the second shearing machine (29) cuts the head of the steel, meanwhile, the second swinging guide pipe (28) swings backwards to guide the steel with the head cut back to a rolling line, the steel enters the next working procedure through a second outlet guide groove (30), and the head cutting part of the steel slides into a second collecting frame (32) through a second head cutting chute (31).
9. The method for operating a two-stage high-speed head-cutting and breaking shearing device according to claim 8, wherein: for the line A, the breaking mode is a working state when steel rolling fails, the steel is guided into the swing guide pipe I (8) through the pinch roll I (7), at the moment, the swing guide pipe I (8) swings the shearing angle theta towards the direction of the shearing machine I (9) to guide the steel into the shearing position, then the shearing machine I (9) continuously carries out breaking shearing until the whole steel is completely sheared, at the moment, the swing guide pipe I (8) swings back to the original position, and the broken steel slides into the collecting frame I (12) through the head cutting chute I (11).
10. The method for operating a two-stage high-speed head-cutting and breaking shearing device according to claim 8, wherein: and for the line B, the breaking mode is a working state when steel rolling fails, the steel is guided into the swing guide pipe II (28) through the pinch roll II (27), at the moment, the swing guide pipe II (28) swings the shearing angle theta towards the direction of the shearing machine II (29) to guide the steel into the shearing position, then the shearing machine II (29) continuously carries out breaking shearing until the whole steel is completely sheared, at the moment, the swing guide pipe II (28) swings back to the original position, and the broken steel slides into the collecting frame II (32) through the head cutting chute II (31).
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