CN115007819A - Full-automatic unmanned dummy ingot feeding system of slab caster and working method thereof - Google Patents
Full-automatic unmanned dummy ingot feeding system of slab caster and working method thereof Download PDFInfo
- Publication number
- CN115007819A CN115007819A CN202210829238.XA CN202210829238A CN115007819A CN 115007819 A CN115007819 A CN 115007819A CN 202210829238 A CN202210829238 A CN 202210829238A CN 115007819 A CN115007819 A CN 115007819A
- Authority
- CN
- China
- Prior art keywords
- dummy bar
- dummy
- crystallizer
- centering
- bar
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052802 copper Inorganic materials 0.000 claims abstract description 26
- 239000010949 copper Substances 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 19
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 claims description 6
- 238000012790 confirmation Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000011017 operating method Methods 0.000 claims 1
- 238000009749 continuous casting Methods 0.000 description 5
- 230000002411 adverse Effects 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/08—Accessories for starting the casting procedure
- B22D11/081—Starter bars
- B22D11/083—Starter bar head; Means for connecting or detaching starter bars and ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Conveyors (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention discloses a full-automatic unmanned dummy ingot feeding system of a slab caster and a working method thereof, wherein the system comprises a dummy ingot rod, a dummy ingot feeding vehicle (14) and a driving roller; the dummy bar comprises a hanging bar (16), a chain block (12), a dummy bar head (7) and a connecting rod; the delivery and guide vehicle (14) is provided with wheels (1), a stop photoelectric tube (30), a deceleration photoelectric tube (31), a support roller (6), a centering device, a traction device, a photoelectric sensor (18), a laser range finder (21) and a protection device; the traction device comprises a front chain wheel (20), a rear chain wheel (2), a ring chain (5), a motor (3), an encoder (4), a front hook (15) and a rear hook (8); the guard comprises a baffle (28) and a moving mechanism; the driving roller is in linkage fit with a detection and execution element on the feeding and guiding vehicle (14). The invention realizes full-automatic unmanned dummy ingot feeding, and avoids generating larger impact and colliding with the crystallizer copper plate (29).
Description
Technical Field
The invention belongs to the field of continuous casting, and particularly relates to a full-automatic unmanned dummy ingot feeding system of a slab continuous casting machine and a working method thereof.
Background
The dummy ingot conveying of the continuous casting machine is an important step in the process of a continuous casting process, the whole dummy ingot conveying process is mainly carried out by manual operation at present, and the following problems exist: 1) the labor intensity of manual dummy ingot feeding is high, and the problems of dummy ingot rod deviation and the like are easy to occur; 2) once a large impact occurs in the process of manually feeding the dummy bar into the crystallizer, the crystallizer copper plate is easily affected adversely, and the service life of the crystallizer is shortened; 3) the feeding distance of the dummy bar and the time when the driving roller of the fan-shaped section is pressed down are mainly determined manually, and if the pressing position of the driving roller is advanced or lagged, the driving roller is damaged or the dummy bar slides downwards, so that the overall precision of the continuous casting machine is adversely affected.
Disclosure of Invention
The invention aims to provide a full-automatic unmanned dummy ingot feeding system of a slab caster and a working method thereof, which realize full-automatic unmanned dummy ingot feeding and avoid generating larger impact and collision with a crystallizer copper plate (29).
The technical scheme adopted by the invention is as follows:
a full-automatic unmanned dummy ingot feeding system of a slab caster comprises a dummy ingot rod, a dummy ingot feeding vehicle (14) and a plurality of pairs of driving rollers distributed on a fan-shaped section; the dummy bar comprises a hanging bar (16) distributed from front to back, a plurality of chain blocks (12) and a dummy head (7), and adjacent components are movably connected through connecting rods (13) on two sides; the bottom of the dummy bar feeding vehicle (14) is provided with a wheel (1) which is used for walking back and forth and can be locked, the front part of the dummy bar feeding vehicle is provided with a stop photoelectric tube (30) and a deceleration photoelectric tube (31) which are used for realizing the accurate positioning of the dummy bar feeding vehicle (14) at a dummy bar position, the two sides of the top part of the dummy bar feeding vehicle are provided with a plurality of pairs of supporting rollers (6) used for supporting a dummy bar and a centering device used for centering the dummy bar, the middle of the top part of the dummy bar feeding vehicle is provided with a traction device used for traction the dummy bar, the front part of the dummy bar feeding vehicle is provided with a photoelectric sensor (18) used for detecting whether a hanging rod (16) is in place, the upper part of the front end of the dummy bar feeding vehicle is provided with a laser range finder (21) which is over the width center of the crystallizer and measures the distance from a dummy bar head (7) when the dummy bar is fed downwards, and the two sides of the front end are provided with a protective device which can insert a baffle plate (28) into the crystallizer to prevent the dummy bar from colliding with a copper plate (29) when the dummy bar is fed downwards; the traction device comprises a front chain wheel (20), a rear chain wheel (2) and a ring chain (5) which are matched, the front chain wheel (20) and the rear chain wheel (2) are respectively driven by a motor (3) and are respectively matched with encoders (4) for monitoring the stroke, and a front hook (15) for hooking a hanging rod (16) forwards and a rear hook (8) for hooking a dummy bar head (7) backwards are arranged on the ring chain (5); the protection device comprises a pair of baffles (28) and a moving mechanism for driving the baffles (28) to enter and exit the crystallizer, and the baffles (28) respectively block the crystallizer copper plates (29) on two sides when inserted into the crystallizer; the driving rollers are in linkage fit with detection and execution elements on the dummy bar conveying trolley (14), the driving rollers at the upper and lower streams are separately controlled, whether the dummy bar is pressed down or not is controlled according to the down-feeding state of the dummy bar, and the down-feeding position of the dummy bar is adjusted through positive and negative rotation.
Furthermore, the centering device comprises a distance measuring instrument (9) and a centering oil cylinder (10), the distance measuring instrument (9) points to the upper portion of the chain block (12) and is higher than the connecting rod (13), and the centering oil cylinder (10) is located near the distance measuring instrument (9) and can push the chain block (12).
Further, the centering method comprises the following steps: when the centering stage is started, for the same centering device, the measured values of two distance meters (9) are respectively recorded as R1 and R2, the installation distance of the two distance meters (9) is R, when R1 is smaller than 0.9R and R2 is smaller than 0.9R, the motor (3) stops pulling, after a period of time delay, the centering oil cylinder (10) extends out to center and keep the chain block (12) in a centering manner, after a period of time delay, the centering oil cylinder (10) retracts, and after a retraction signal reaches, the motor (3) continues pulling.
Furthermore, the moving mechanism comprises a lifting oil cylinder (32) arranged on the conveying trolley (14), a platform (34) driven to lift by the lifting oil cylinder (32), a telescopic assembly (33) arranged on the platform (34), and mounting blocks (23) driven by the telescopic assembly (33) to move back and forth, the two mounting blocks (23) are synchronously connected through a pull rod (22), and a pair of baffles (28) are respectively mounted on the two mounting blocks (23).
The working method of the full-automatic unmanned dummy ingot feeding system of the slab caster comprises the following steps:
s1, in an initial state, a conveying vehicle (14) is in a stop position, and a baffle (28) of a protection device is in an initial position; after the system receives a dummy ingot sending instruction, the wheels (1) are unlocked and drive the dummy ingot sending vehicle (14) to travel to the crystallizer at a normal speed a, the dummy ingot sending vehicle (14) passes through and covers the speed reduction photoelectric tube (31), the wheels (1) are triggered to travel at a low speed b, then the wheels (1) arrive at a low speed and cover the stop photoelectric tube (30), the wheels (1) are triggered to be locked, and the dummy ingot is located at a dummy ingot position at the moment;
s2, after a signal that the wheel (1) is locked is received, the protective device drives a baffle plate (28) to be inserted into the crystallizer to block a crystallizer copper plate (29); after receiving the insertion signal of the baffle (28), the motor (3) drives the endless chain (5) to drive the dummy bar to move to the inlet of the crystallizer at the speed c through the front hook (15), and simultaneously, the encoder (4) of the rear chain wheel (2) starts to count and converts the count into the moving stroke E of the rear hook (8);
s3, when the photoelectric sensor (18) detects that the hanging rod (16) is in place, the motor (3) receives a deceleration signal, drives the dummy bar to travel at a low speed d, and simultaneously, the encoder (4) of the front chain wheel (20) starts counting and converts the counting into a stroke S of the hanging rod (16) leaving the photoelectric sensor (18);
s4, the dummy bar is conveyed at a low speed d and stays for a short time to realize centering when passing through the centering device; setting H as the length of the dummy bar, namely the distance between the hanging bar (16) and the dummy bar head (7), starting distance measurement by the laser distance meter (21) when S is larger than H and recording as k, setting L as the height between the entrance of the crystallizer copper plate (29) and the laser distance meter (21), stopping driving the dummy bar by the motor (3) when k is larger than or equal to 0.6L and pressing down the upstream driving roller, delaying for a period of time, entering the next step if the pressing signal is in place, and alarming and manually confirming if the pressing signal is not in place;
s5, the motor (3) drives the front chain wheel (20) to rotate in the forward direction, and the moving speed is c; meanwhile, the upstream driving roller rotates to drive the dummy bar to move downwards, and the driving roller drives the dummy bar to move at a speed d; when E reaches 1/2 of the circumference of the ring chain (5), the front chain wheel (20) stops moving; setting the value range of X as 400-600mm, stopping the upstream driving roller when k is more than or equal to (L + X), pressing the downstream driving roller, delaying for a period of time, entering the next step if the pressing signal is in place, and alarming and manually confirming if the pressing signal is not in place;
s6, the driving rollers on the upper and lower streams rotate simultaneously and drive the dummy bar to move downwards, the height of the crystallizer copper plate (29) is set as O, and when k is equal to (L + O), namely the top surface of the dummy bar head (7) is level with the lower opening of the crystallizer, the driving rollers on the upper and lower streams stop moving and enter the next step;
s7, the upstream and downstream driving rollers rotate reversely to drive the dummy bar to move upwards, when k is equal to (L + X), the upstream and downstream driving rollers stop moving, the downstream driving roller is lifted, after a period of time is delayed, if a lifting signal is in place, the next step is carried out, and if the lifting signal is not in place, an alarm is given and manual confirmation is carried out;
s8, the protective device drives the baffle (28) to completely leave the crystallizer copper plate (29) and return to an initial position, the wheel (1) is unlocked after the reset signal of the baffle (28) is received, and after a period of time delay, the guide vehicle (14) is driven to travel from a guide ingot position to a stop position and is locked.
Furthermore, the value range of the speed a is 0.5-2m/s, the value range of the speed b is 0.1-0.4m/s, the value range of the speed c is 0.3-0.7m/s, and the value range of the speed d is 0.1-0.2 m/s.
Further, the upstream driving rollers are a first pair of driving rollers (24), a second pair of driving rollers (25) and a third pair of driving rollers (26), and the downstream driving rollers are a fourth pair of driving rollers (27).
The invention has the beneficial effects that:
the system has simple structure, realizes full-automatic unmanned dummy ingot feeding, and reduces the labor intensity of workers; in the system, the encoder (4) can track the movement distance of the ring chain (5) in real time, the laser range finder (21) can measure the distance of the dummy bar head (7) during downward feeding in real time, the photoelectric sensor (18) can detect whether the hanging rod (16) is in place or not, the feedback of the three can ensure the accurate control of the whole system, and meanwhile, the photoelectric tube (30) and the deceleration photoelectric tube (31) are stopped to realize the accurate positioning of the lead conveying vehicle (14) at the dummy bar position and ensure the basis of the accurate control; in the system, a front hook (15) and a rear hook (8) are respectively matched with a hanging rod (16) and a dummy bar head (7), so that the stability of the dummy bar in the descending process can be ensured, and the generation of larger impact is avoided; the crystallizer copper plate (29) is a core component of the crystallizer, and in the system, the protective device can prevent the dummy bar from colliding with the crystallizer copper plate (29) when being sent downwards, so that the service life of the crystallizer is prolonged; in the system, the supporting rollers can effectively reduce the resistance of the dummy bar in the moving process.
Drawings
FIG. 1 is a front view of a fully automatic dummy ingot feeding system of a slab caster in an embodiment of the invention.
FIG. 2 is a top view of the fully automatic dummy ingot feeding system of the slab caster in the embodiment of the invention.
In the figure: 1-vehicle wheels; 2-rear chain wheel; 3, a motor; 4-an encoder; a 5-ring chain; 6, supporting rollers; 7-dummy bar head; 8-rear hook; 9-a range finder; 10-centering the oil cylinder; 11-mounting plate of centering oil cylinder; 12-a chain block; 13-a connecting rod; 14-guiding vehicle feeding; 15-front hook; 16-hanging rods; 17-mounting upright posts of photoelectric sensors; 18-a photosensor; 19-mounting bracket of laser range finder; 20-a front sprocket; 21-laser rangefinder; 22-a pull rod; 23-a mounting block; 24-a first pair of drive rollers; 25-a second pair of drive rollers; 26-a third pair of drive rollers; 27-a fourth pair of drive rollers; 28-gear; 29-crystallizer copper plate; 30-stop the photocell; 31-a deceleration photocell; 32-a lift cylinder; 33-a telescopic assembly; 34-platform.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1 and fig. 2, a full-automatic dummy ingot feeding system for a slab caster comprises a dummy bar, a dummy car 14, and a plurality of pairs of driving rollers distributed in a sector section; the dummy bar comprises a hanging bar 16, a plurality of chain blocks 12 and a dummy head 7 which are distributed from front to back, and adjacent components are movably connected through connecting rods 13 on two sides; the bottom of the dummy bar conveying vehicle 14 is provided with a wheel 1 which is used for walking back and forth and can be locked, the front part of the dummy bar conveying vehicle is provided with a stopping photoelectric tube 30 and a speed reducing photoelectric tube 31 which are used for realizing the accurate positioning of the dummy bar conveying vehicle 14 at a dummy bar position, the two sides of the top part of the dummy bar conveying vehicle are provided with a plurality of pairs of supporting rollers 6 which are used for supporting a dummy bar and a centering device which is used for centering the dummy bar, the middle of the top part of the dummy bar conveying vehicle is provided with a traction device which is used for drawing the dummy bar, the front part of the dummy bar conveying vehicle is provided with a photoelectric sensor 18 which is used for detecting whether a hanging bar 16 is in place, the upper part of the front end of the dummy bar conveying vehicle is provided with a laser range finder 21 which is over against the width center of the crystallizer and measures the distance with a dummy bar head 7 when the dummy bar is conveyed downwards, and the two sides of the front end of the dummy bar are provided with a protective device which can insert a baffle 28 into the crystallizer to prevent the dummy bar from colliding with a crystallizer copper plate 29 when the dummy bar is conveyed downwards; the traction device comprises a front chain wheel 20, a rear chain wheel 2 and a ring chain 5 which are matched, wherein the front chain wheel 20 and the rear chain wheel 2 are respectively driven by a motor 3 and are respectively matched with encoders 4 for monitoring strokes, and the ring chain 5 is provided with a front hook 15 for hooking a hanging rod 16 forwards and a rear hook 8 for hooking a dummy bar head 7 backwards; the protection device comprises a pair of baffles 28 and a moving mechanism for driving the baffles 28 to enter and exit the crystallizer, and the baffles 28 respectively block the crystallizer copper plates 29 on two sides when inserted into the crystallizer; the driving rollers are in linkage fit with detection and execution elements on the dummy bar conveying vehicle 14, the driving rollers at the upstream and the downstream are separately controlled, whether the dummy bar is pressed down or not is controlled according to the downward conveying state of the dummy bar, and the downward conveying position of the dummy bar is adjusted through forward and reverse rotation.
As shown in fig. 1 and 2, in the present embodiment, the centering device includes a distance meter 9 perpendicular to the center line and a centering cylinder 10, the distance meter 9 is directed to the upper portion of the chain block 12 and is higher than the connecting rod 13, and the centering cylinder 10 is located near the distance meter 9 and can push the chain block 12.
As shown in fig. 1 and 2, in the present embodiment, the moving mechanism includes a lift cylinder 32 provided on the cart 14, a platform 34 driven to lift by the lift cylinder 32, a telescopic assembly 33 provided on the platform 34, and a mounting block 23 driven by the telescopic assembly 33 to move forward and backward, the two mounting blocks 23 are synchronously connected by a pull rod 22, and the pair of guards 28 are respectively mounted on the two mounting blocks 23.
The working method of the full-automatic unmanned dummy ingot feeding system of the slab caster comprises the following steps:
s1, in an initial state, the transfer trolley 14 is in a stop position, the baffle 28 of the protection device is in an initial position, the lifting oil cylinder 32 is at the highest position at the moment, and the telescopic mechanism 33 is in a contraction position; after the system receives a dummy ingot sending instruction, the wheel 1 is unlocked, a band-type brake is opened, the dummy ingot sending vehicle 14 is driven to travel to the crystallizer at a normal speed a, the dummy ingot sending vehicle 14 passes through and covers the speed reduction photoelectric tube 31, the wheel 1 is triggered to travel at a low speed b, then the wheel 1 arrives at a low speed and covers the stop photoelectric tube 30, the wheel 1 is triggered to be locked, and the dummy ingot is located at a dummy ingot position at the moment;
s2, after a signal that the wheel 1 is locked is received, the protective device drives the baffle 28 to be inserted into the crystallizer to block the crystallizer copper plate 29, the telescopic mechanism 33 extends out first, and then the lifting oil cylinder 32 descends; after receiving the insertion signal of the baffle 28, the motor 3 drives the endless chain 5 to drive the dummy bar to move towards the entrance of the crystallizer at the speed c through the front hook 15, and simultaneously, the encoder 4 of the rear chain wheel 2 starts counting and converts the counting into the moving stroke E of the rear hook 8;
s3, when the photoelectric sensor 18 detects that the hanging rod 16 is in place, the motor 3 receives a deceleration signal to drive the dummy bar to walk at a low speed d, and meanwhile, the encoder 4 of the front chain wheel 20 starts counting and converts the counting into a stroke S of the hanging rod 16 leaving the photoelectric sensor 18;
s4, the dummy bar is sent at a low speed d and stays for a short time to realize centering when passing through the centering device, and the centering method comprises the following steps: for the same pair of centering devices, the measured values of the two distance meters 9 are respectively recorded as R1 and R2, the installation distance of the two distance meters 9 is R, when R1 is smaller than 0.9R and R2 is smaller than 0.9R, the motor 3 stops traction, a time delay is carried out, after 5s, the centering oil cylinder 10 extends out to center and keep the chain block 12 in a mode of butt-clamping, after a time delay is carried out, after 2s, the centering oil cylinder 10 retracts, and after the retraction signal reaches, the motor 3 continues traction; setting H as the length of the dummy bar, namely the distance from the hanging bar 16 to the dummy bar head 7, starting distance measurement by the laser distance meter 21 when S is more than H and recording as k, setting L as the height from the entrance of the crystallizer copper plate 29 to the laser distance meter 21, stopping driving the dummy bar by the motor 3 when k is more than or equal to 0.6L and pressing down an upstream driving roller, delaying for a period of time, if 5S later, entering the next step if the pressing signal is in place, and if the pressing signal is not in place, alarming and manually confirming;
s5, the motor 3 drives the front chain wheel 20 to rotate in the positive direction, and the moving speed is c; meanwhile, the upstream driving roller rotates to drive the dummy bar to move downwards, and the driving roller drives the dummy bar to move at a speed d; when E reaches 1/2 of the circumference of the endless chain 5, the front sprocket 20 stops moving; setting the value range of X as 400-600mm, stopping the upstream driving roller when k is more than or equal to (L + X), pressing down the downstream driving roller, delaying for a period of time, entering the next step if the pressing signal is in place after 5s, and alarming and manually confirming if the pressing signal is not in place;
s6, the driving rollers on the upper and lower streams rotate simultaneously and drive the dummy bar to move downwards, the height of the crystallizer copper plate 29 is set as O, when k is equal to (L + O), namely the top surface of the dummy bar head 7 is flush with the lower opening of the crystallizer, the driving rollers on the upper and lower streams stop moving, and the next step is carried out;
s7, the upstream and downstream driving rollers rotate reversely to drive the dummy bar to move upwards, when k is equal to (L + X), the upstream and downstream driving rollers stop moving, the downstream driving roller is lifted, after a period of time, if a lifting signal is in place after 5s, the next step is carried out, and if the lifting signal is not in place, an alarm is given and manual confirmation is carried out;
s8, the protective device drives the baffle 28 to completely leave the crystallizer copper plate 29 and return to the initial position, after the reset signal of the baffle 28 is received, the wheel 1 is unlocked, and after a time delay, for example, after 5s, the leading vehicle 14 is driven to travel from the dummy ingot position to the stopping position and is locked.
In this embodiment, the speed a has a value in the range of 0.5-2m/s, the speed b has a value in the range of 0.1-0.4m/s, the speed c has a value in the range of 0.3-0.7m/s, and the speed d has a value in the range of 0.1-0.2 m/s.
As shown in fig. 1, in the present embodiment, the upstream driving rollers are a first pair of driving rollers 24, a second pair of driving rollers 25, and a third pair of driving rollers 26, and the downstream driving rollers are a fourth pair of driving rollers 27.
The system has simple structure, realizes full-automatic unmanned dummy ingot feeding, and reduces the labor intensity of workers; in the system, the encoder 4 can track the movement distance of the ring chain 5 in real time, the laser range finder 21 can measure the distance of the dummy bar head 7 during feeding in real time, the photoelectric sensor 18 can detect whether the hanging rod 16 is in place or not, the feedback of the three can ensure the accurate control of the whole system, and meanwhile, the stop photoelectric tube 30 and the deceleration photoelectric tube 31 realize the accurate positioning of the lead conveying vehicle 14 at the dummy bar position and ensure the basis of the accurate control; in the system, the front hook 15 and the rear hook 8 are respectively matched with the hanging rod 16 and the dummy bar head 7, so that the stability of the dummy bar in the descending process can be ensured, and the generation of larger impact is avoided; the crystallizer copper plate 29 is a core component of the crystallizer, and in the system, a protection device can prevent the dummy bar from colliding with the crystallizer copper plate 29 when being sent downwards, so that the service life of the crystallizer is prolonged; in the system, the supporting rollers can effectively reduce the resistance of the dummy bar in the moving process.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (7)
1. The utility model provides a full-automatic unmanned dummy ingot system that send of slab caster which characterized in that: comprises a dummy bar, a dummy car (14) and a plurality of pairs of driving rollers distributed on a sector section; the dummy bar comprises a hanging bar (16), a plurality of chain blocks (12) and a dummy bar head (7) which are distributed from front to back, and adjacent components are movably connected through connecting rods (13) at two sides; the bottom of the dummy bar feeding vehicle (14) is provided with a wheel (1) which is used for walking back and forth and can be locked, the front part of the dummy bar feeding vehicle is provided with a stop photoelectric tube (30) and a deceleration photoelectric tube (31) which are used for realizing the accurate positioning of the dummy bar feeding vehicle (14) at a dummy bar position, the two sides of the top part of the dummy bar feeding vehicle are provided with a plurality of pairs of supporting rollers (6) used for supporting a dummy bar and a centering device used for centering the dummy bar, the middle of the top part of the dummy bar feeding vehicle is provided with a traction device used for traction the dummy bar, the front part of the dummy bar feeding vehicle is provided with a photoelectric sensor (18) used for detecting whether a hanging rod (16) is in place, the upper part of the front end of the dummy bar feeding vehicle is provided with a laser range finder (21) which is over the width center of the crystallizer and measures the distance from a dummy bar head (7) when the dummy bar is fed downwards, and the two sides of the front end are provided with a protective device which can insert a baffle plate (28) into the crystallizer to prevent the dummy bar from colliding with a copper plate (29) when the dummy bar is fed downwards; the traction device comprises a front chain wheel (20), a rear chain wheel (2) and a ring chain (5) which are matched, the front chain wheel (20) and the rear chain wheel (2) are respectively driven by a motor (3) and are respectively matched with encoders (4) for monitoring the stroke, and a front hook (15) for hooking a hanging rod (16) forwards and a rear hook (8) for hooking a dummy bar head (7) backwards are arranged on the ring chain (5); the protection device comprises a pair of baffles (28) and a moving mechanism for driving the baffles (28) to enter and exit the crystallizer, and the baffles (28) respectively block the crystallizer copper plates (29) on two sides when inserted into the crystallizer; the driving rollers are in linkage fit with detection and execution elements on the dummy bar conveying trolley (14), the driving rollers at the upper and lower streams are separately controlled, whether the dummy bar is pressed down or not is controlled according to the down-feeding state of the dummy bar, and the down-feeding position of the dummy bar is adjusted through positive and negative rotation.
2. The full-automatic unmanned dummy ingot feeding system of the slab caster as claimed in claim 1, wherein: the centering device comprises a distance meter (9) and a centering oil cylinder (10), the distance meter (9) is perpendicular to the central line, the distance meter (9) points to the upper portion of the chain block (12) and is higher than the connecting rod (13), and the centering oil cylinder (10) is located near the distance meter (9) and can push the chain block (12).
3. The full-automatic unmanned dummy ingot feeding system of the slab caster as claimed in claim 2, wherein: the centering method comprises the following steps: when the centering stage is started, for the same centering device, the measured values of two distance meters (9) are respectively recorded as R1 and R2, the installation distance of the two distance meters (9) is R, when R1 is smaller than 0.9R and R2 is smaller than 0.9R, the motor (3) stops pulling, after a period of time delay, the centering oil cylinder (10) extends out to center and keep the chain block (12) in a centering manner, after a period of time delay, the centering oil cylinder (10) retracts, and after a retraction signal reaches, the motor (3) continues pulling.
4. The full-automatic unmanned dummy ingot feeding system of the slab caster as claimed in claim 1, wherein: the moving mechanism comprises a lifting oil cylinder (32) arranged on the conveying and guiding vehicle (14), a platform (34) driven to lift by the lifting oil cylinder (32), a telescopic assembly (33) arranged on the platform (34), and mounting blocks (23) driven to move back and forth by the telescopic assembly (33), the two mounting blocks (23) are synchronously connected through a pull rod (22), and a pair of baffles (28) are respectively mounted on the two mounting blocks (23).
5. An operating method of the full-automatic unmanned dummy ingot feeding system of the slab caster as claimed in any one of claims 1 to 4, characterized in that: comprises the steps of (a) carrying out,
s1, in an initial state, a guiding vehicle (14) is in a stop position, and a baffle plate (28) of a protection device is in an initial position; after the system receives a dummy ingot sending instruction, the wheels (1) are unlocked and drive the dummy ingot sending vehicle (14) to walk towards the crystallizer at a normal speed a, the dummy ingot sending vehicle (14) passes through and covers the speed reduction photoelectric tube (31), the wheels (1) are triggered to walk at a low speed b, then the wheels (1) arrive at a low speed and cover the stop photoelectric tube (30), the wheels (1) are triggered to be locked, and the dummy ingot is located at a dummy ingot position at the moment;
s2, after a signal that the wheel (1) is locked is received, the protective device drives a baffle plate (28) to be inserted into the crystallizer to block a crystallizer copper plate (29); after a signal that the baffle (28) is inserted is received, the motor (3) drives the ring chain (5) to drive the dummy bar to move towards the inlet of the crystallizer at a speed c through the front hook (15), and meanwhile, the encoder (4) of the rear chain wheel (2) starts to count and converts the count into a moving stroke E of the rear hook (8);
s3, when the photoelectric sensor (18) detects that the hanging rod (16) is in place, the motor (3) receives a deceleration signal, drives the dummy bar to travel at a low speed d, and simultaneously, the encoder (4) of the front chain wheel (20) starts counting and converts the counting into a stroke S of the hanging rod (16) leaving the photoelectric sensor (18);
s4, the dummy bar is conveyed at a low speed d and stays for a short time to realize centering when passing through the centering device; setting H as the length of the dummy bar, namely the distance between the hanging bar (16) and the dummy bar head (7), starting distance measurement by the laser distance meter (21) when S is larger than H and recording as k, setting L as the height between the entrance of the crystallizer copper plate (29) and the laser distance meter (21), stopping driving the dummy bar by the motor (3) when k is larger than or equal to 0.6L and pressing down the upstream driving roller, delaying for a period of time, entering the next step if the pressing signal is in place, and alarming and manually confirming if the pressing signal is not in place;
s5, the motor (3) drives the front chain wheel (20) to rotate in the forward direction, and the moving speed is c; meanwhile, the upstream driving roller rotates to drive the dummy bar to move downwards, and the driving roller drives the dummy bar to move at a speed d; when E reaches 1/2 of the circumference of the ring chain (5), the front chain wheel (20) stops moving; setting the value range of X as 400-600mm, stopping the upstream driving roller when k is more than or equal to (L + X), pressing the downstream driving roller, delaying for a period of time, entering the next step if the pressing signal is in place, and alarming and manually confirming if the pressing signal is not in place;
s6, the driving rollers on the upper and lower streams rotate simultaneously and drive the dummy bar to move downwards, the height of the crystallizer copper plate (29) is set as O, and when k is equal to (L + O), namely the top surface of the dummy bar head (7) is level with the lower opening of the crystallizer, the driving rollers on the upper and lower streams stop moving and enter the next step;
s7, the upstream and downstream driving rollers rotate reversely to drive the dummy bar to move upwards, when k is equal to (L + X), the upstream and downstream driving rollers stop moving, the downstream driving roller is lifted, after a period of time, if a lifting signal is in place, the next step is carried out, and if the lifting signal is not in place, an alarm is given and manual confirmation is carried out;
s8, the protective device drives the baffle (28) to completely leave the crystallizer copper plate (29) and return to an initial position, after a reset signal of the baffle (28) is received, the wheels (1) are unlocked, and after a period of time delay, the delivery trolley (14) is driven to walk from a dummy bar position to a stop position and is locked.
6. The working method of the full-automatic unmanned dummy ingot feeding system of the slab caster as claimed in claim 5, characterized in that: the speed a is 0.5-2m/s, the speed b is 0.1-0.4m/s, the speed c is 0.3-0.7m/s, and the speed d is 0.1-0.2 m/s.
7. The working method of the full-automatic unmanned dummy ingot feeding system of the slab caster as claimed in claim 5, characterized in that: the upstream drive rollers are a first pair of drive rollers (24), a second pair of drive rollers (25), and a third pair of drive rollers (26), and the downstream drive rollers are a fourth pair of drive rollers (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210829238.XA CN115007819B (en) | 2022-06-28 | 2022-06-28 | Full-automatic unmanned dummy ingot feeding system of slab continuous casting machine and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210829238.XA CN115007819B (en) | 2022-06-28 | 2022-06-28 | Full-automatic unmanned dummy ingot feeding system of slab continuous casting machine and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115007819A true CN115007819A (en) | 2022-09-06 |
| CN115007819B CN115007819B (en) | 2023-12-19 |
Family
ID=83082648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210829238.XA Active CN115007819B (en) | 2022-06-28 | 2022-06-28 | Full-automatic unmanned dummy ingot feeding system of slab continuous casting machine and working method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115007819B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0333553A1 (en) * | 1988-03-10 | 1989-09-20 | Clecim | Device for manipulating, for stocking and for introducing the dummy bar into a continnous casting installation |
| CN202192237U (en) * | 2011-08-31 | 2012-04-18 | 攀钢集团有限公司 | Automatic dummy ingot conveying device for continuous casting process |
| CN105522129A (en) * | 2014-09-30 | 2016-04-27 | 上海梅山钢铁股份有限公司 | Control device and control method for safe lifting of dummy bar of continuous casting machine |
| CN212449192U (en) * | 2020-05-11 | 2021-02-02 | 武汉西赛冶金工程有限责任公司 | Dummy bar storing and conveying device for continuous casting machine |
-
2022
- 2022-06-28 CN CN202210829238.XA patent/CN115007819B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0333553A1 (en) * | 1988-03-10 | 1989-09-20 | Clecim | Device for manipulating, for stocking and for introducing the dummy bar into a continnous casting installation |
| CN202192237U (en) * | 2011-08-31 | 2012-04-18 | 攀钢集团有限公司 | Automatic dummy ingot conveying device for continuous casting process |
| CN105522129A (en) * | 2014-09-30 | 2016-04-27 | 上海梅山钢铁股份有限公司 | Control device and control method for safe lifting of dummy bar of continuous casting machine |
| CN212449192U (en) * | 2020-05-11 | 2021-02-02 | 武汉西赛冶金工程有限责任公司 | Dummy bar storing and conveying device for continuous casting machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115007819B (en) | 2023-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105149231B (en) | A kind of three-stage piece supplying table control method supporting for halved belt sorter | |
| CN108163706B (en) | Automatic casting blank conveying system and method | |
| FI72003C (en) | Procedure and apparatus for returning shopping carts to the supermarket. | |
| CN115007819A (en) | Full-automatic unmanned dummy ingot feeding system of slab caster and working method thereof | |
| CN103019109A (en) | Control method for realizing long-distance position detection by combination of encoder and limit | |
| CN109882243A (en) | A kind of underground rubber-tired cart speed runaway barrier system and stop method | |
| CN112872607A (en) | Full-automatic aluminium wheel hub beats mark device | |
| CN210162368U (en) | Leak protection spouts a yard automatic check out system | |
| CN208903132U (en) | A kind of high reliability motion positions control device, system | |
| CN208932374U (en) | It is a kind of for hanging the detection device of assembly line | |
| CN116372131A (en) | Intelligent transportation system and transportation method for continuous casting slab | |
| CN217417165U (en) | Stabilizer feeder for asphalt processing | |
| CN207903768U (en) | A kind of strand automated transport system | |
| CN214732082U (en) | Transport vehicle | |
| CN112644993A (en) | Transport vehicle and operation method thereof | |
| CN213474468U (en) | Tubular pile conveying device | |
| CN216234305U (en) | Roller shaft intelligent logistics device suitable for edge grinding machine | |
| CN209760068U (en) | A intelligent deceleration strip for parking stall management | |
| CN203587352U (en) | High hoisting vehicle test stand | |
| CN220702198U (en) | Full-automatic stacking system | |
| CN220136479U (en) | Vehicle weighing device based on optical fiber sensor | |
| CN109795029A (en) | A kind of pre-stress rail plate puts a device | |
| CN107941195A (en) | A kind of wheel angle of attack measuring system device and method | |
| CN217806935U (en) | Automatic change drive coupling device of integrated feed bin tray | |
| CN219039619U (en) | Control device is collected to rod cooling bed reinforcing bar accuracy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |