CN109926555B - Cold-feeding off-line blank discharging system and method for hydraulic steel drawing machine and rectangular casting blank continuous casting machine - Google Patents
Cold-feeding off-line blank discharging system and method for hydraulic steel drawing machine and rectangular casting blank continuous casting machine Download PDFInfo
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Abstract
The invention relates to a hydraulic steel drawing machine and a cold-feeding off-line blank discharging system of a rectangular casting blank continuous casting machine and a method thereof, belonging to the technical field of metallurgical continuous casting equipment, and the invention relates to a cold-feeding off-line blank discharging system of a rectangular casting blank continuous casting machine, which is characterized by comprising the following components: a hydraulic steel drawing machine, a blank ejection roller way; a steel hooking machine conveying system; cold feeding and discharging roller way; the discharge port of the knockout roller way is connected with the material receiving port of the hydraulic steel drawing machine through the steel hooking machine conveying system, and the discharge port of the hydraulic steel drawing machine is connected with the cold feeding and discharging roller way. Because the hydraulic steel drawing machine periodically conveys the rectangular casting blank, the off-line time of the casting blank can be accurately ensured, and the off-line temperature of the casting blank can be accurately ensured.
Description
Technical Field
The invention belongs to the technical field of metallurgical continuous casting equipment, and particularly relates to a cold-feeding off-line blank discharging system and a cold-feeding off-line blank discharging method for a hydraulic steel drawing machine and a rectangular casting blank continuous casting machine.
Background
The high-quality special steel is a special steel variety with higher performance, longer service life, environmental friendliness, high technical content and high added value, represents the development direction of special steel materials, has important significance for guaranteeing national major engineering construction, improving equipment manufacturing level, promoting energy conservation and emission reduction and technical upgrading in related fields, and is an important mark for embodying the national whole industry development level.
In the production process of a high-quality special steel continuous casting machine, the surface quality of the lower line of a casting blank and the lower line temperature are important control indexes for measuring a blank ejection system.
In the process of implementing the embodiment of the present invention, the inventors found that at least the following defects exist in the background art:
the temperature of the cast slab needs to be ensured by a time period, and the stable off-line temperature cannot be ensured when the cast slab for conveying high-quality special steel is too fast or too slow.
Disclosure of Invention
The invention provides a cold-feeding off-line blank discharging system and a cold-feeding off-line blank discharging method for a hydraulic steel drawing machine and a rectangular casting blank continuous casting machine, and aims to solve the problems that stable off-line temperature cannot be guaranteed when a casting blank for conveying high-quality special steel is too fast or too slow.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
a cold feed off-line knockout system for a rectangular casting blank continuous caster, comprising:
the hydraulic pressure draws steel machine, and the hydraulic pressure draws steel machine includes:
the rack track consists of a plurality of horizontal equidirectional sliding rails;
the pusher dog mechanism is in sliding connection with the sliding rail through a sliding block, the pusher dog mechanism 26 is rotationally connected to the sliding block, a limiting part is arranged on the sliding block, the limiting part and the pusher dog mechanism form a one-way reset mechanism, the upper edge of the pusher dog mechanism is lower than the upper edge of the sliding rail when the sliding block retreats and encounters a rectangular casting blank, and the limiting part limits the pusher dog mechanism when the sliding block advances, so that the upper edge of the pusher dog mechanism is always higher than the upper edge of the sliding rail;
The first transmission device outputs linear reciprocating power;
each sliding rail is provided with at least one sliding block, each sliding block is provided with a pusher dog mechanism, a row of sliding blocks are distributed in parallel in a vertical direction of the conveying direction of the rack track, the first transmission device is simultaneously in transmission connection with a row of sliding blocks, and the transmission direction of the first transmission device is consistent with the conveying direction of the rack track, wherein the sliding blocks of a row are formed by arranging a plurality of sliding blocks on the sliding rails;
a blank discharging roller way;
a steel hooking machine conveying system;
cold feeding and discharging roller way;
the discharge port of the knockout roller way is connected with the material receiving port of the hydraulic steel drawing machine through the steel hooking machine conveying system, and the discharge port of the hydraulic steel drawing machine is connected with the cold feeding and discharging roller way.
The steel hooking machine conveying system comprises:
the track support is perpendicular to the casting flow direction of the blank ejection roller way;
hooking steel machine;
a hot metal monitoring system;
the control system is electrically connected with the steel hooking machine and the hot metal monitoring system respectively;
the steel hooking machine is arranged on the track support, the steel hooking machine can move on the track support, one end of the track support is positioned at the upper end of a discharge hole of the blank discharging roller way, the other end of the track support is positioned at the upper end of a material receiving hole of the hydraulic steel drawing machine, and a hot metal monitoring system is arranged on the track support at the upper end of the blank discharging roller way.
And a plurality of gaps along the radial direction of the knockout roller way are intermittently distributed on the knockout roller way along the casting flow direction of the knockout roller way, a plurality of lifting hooks for lifting the rectangular casting blank are arranged at the lower end of the steel hooking machine, and a plurality of lifting hooks can pass through the knockout roller way through the gaps.
The first transmission device is a crank slider linkage mechanism; or (b)
The first transmission device is a multi-link mechanism and an oil cylinder, one end of the multi-link mechanism is fixed, the other end of the multi-link mechanism is rotationally connected with the sliding block, one end of the oil cylinder is fixed, the other end of the oil cylinder is in transmission connection with one link of the multi-link mechanism, and the rotation direction of the multi-link mechanism and the transmission direction of the oil cylinder are consistent with the conveying direction of the rack track;
the multi-link mechanism and the bottom of the oil cylinder are provided with first fixing seats, and the fixed end of the multi-link mechanism and the fixed end of the oil cylinder are fixed on the first fixing seats.
The hydraulic steel drawing machine with have the casting blank between the hook steel machine conveying system and transfer the cooling bed, the discharge gate of hydraulic steel drawing machine is transferred the cooling bed through the casting blank and is connected with cold the roll way that send off line, the casting blank is transferred the cooling bed and is included:
The fixed rail is provided with a plurality of fixed rails, and the position of the fixed rail is fixed relative to the ground;
the movable rails are distributed on two sides of the fixed rail;
the horizontal lifting platform is positioned right below the fixed rail and the movable rail;
the linear guide rail is fixed on the horizontal lifting platform, a sliding block is arranged on the linear guide rail, and the movable rail is in sliding connection with the movable rail through the sliding block;
the second transmission device is fixed at the upper end of the horizontal lifting table and is in transmission connection with the sliding block along the linear direction of the fixed track.
The elastic piece is arranged between the pusher dog mechanism and the sliding block, one end of the pusher dog mechanism is rotationally connected with the sliding block, the other end of the pusher dog mechanism is connected with the sliding block through the elastic piece, when the elastic piece is in a compressed state, the upper edge of the pusher dog mechanism is lower than the upper edge of the sliding rail, and when the elastic piece is in a released state, the upper edge of the pusher dog mechanism is higher than the upper edge of the sliding rail, and the limiting part is the elastic piece.
The lower part of the rotating connection part of the pusher dog mechanism of the unidirectional reset mechanism is heavier than the upper part of the rotating connection part of the pusher dog mechanism, when the pusher dog mechanism is positioned at the lower edge of the sliding rail, the limiting part is positioned at one side of the pusher dog mechanism in the rotating area of the pusher dog mechanism, and the limiting part is fixed with the sliding block;
The casting blank transferring cooling bed comprises a casting blank transferring cooling bed control module, wherein a material receiving port of the casting blank transferring cooling bed is provided with a first photoelectric switch;
the casting blank transferring cooling bed control module is electrically connected with the first photoelectric switch, the horizontal lifting table and the second transmission device;
the cold-feeding offline roller way is provided with a detection device for detecting the rectangular casting blank;
the cold feeding off-line roller way comprises a first group of roller ways and a second group of roller ways;
when the detection device on the cold-feeding and discharging roller way detects that the rectangular casting blank arrives, the cold-feeding and discharging roller way is started, the rectangular casting blank is ready to be conveyed, for 6-7.6 m fixed-size blanks, the cold-feeding and discharging second group of roller ways are started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the conveying of the rectangular casting blank of the cold-feeding and discharging second group of roller ways is finished, the first group of roller ways and the second group of roller ways are synchronously started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the detection device detects that the rectangular casting blank is completely conveyed, the cold-feeding and discharging roller way is stopped, the hydraulic steel drawing machine continues to push the blank, for the fixed-size blanks of more than 7.6m, the cold-feeding and discharging roller way is completely started, the cold-feeding and discharging roller way stops after the conveying of the rectangular casting blank of the cold-feeding and discharging roller way is completely conveyed, and the hydraulic steel drawing machine continues to push the blank.
A hydraulic steel drawing machine comprising:
the rack track consists of a plurality of horizontal equidirectional sliding rails;
the pusher dog mechanism is in sliding connection with the sliding rail through a sliding block, the pusher dog mechanism is rotationally connected to the sliding block, a limiting part is arranged on the sliding block, the limiting part and the pusher dog mechanism form a one-way reset mechanism, the upper edge of the pusher dog mechanism is lower than the upper edge of the sliding rail when the sliding block retreats and encounters a rectangular casting blank, and the limiting part limits the pusher dog mechanism when the sliding block advances, so that the upper edge of the pusher dog mechanism is always higher than the upper edge of the sliding rail;
the first transmission device outputs linear reciprocating power;
each sliding rail is provided with at least one sliding block, a row of sliding blocks are distributed in parallel in the vertical direction of the conveying direction of the rack track, the first transmission device is simultaneously in transmission connection with the row of sliding blocks, and the transmission direction of the first transmission device is consistent with the conveying direction of the rack track, wherein the row of sliding blocks are formed by arranging a plurality of sliding blocks on the sliding rails.
A cold-feeding off-line blank-discharging method of a rectangular casting blank continuous casting machine comprises the following steps:
step 1: after a control system acquires a billet ejection signal of the hot metal monitoring system, controlling a steel hooking machine conveying system to hook a rectangular casting billet and convey the rectangular casting billet to a material receiving port of a hydraulic steel drawing machine, wherein the billet ejection signal is the billet ejection signal monitored by the hot metal monitoring system when the rectangular casting billet is arranged at a material discharging port of a billet ejection roller way, and the control system is a general control system of a continuous casting machine cold feeding and discharging system;
Step 2: the control system starts the hydraulic steel drawing machine and the cold-feeding off-line roller way, and the rectangular casting blank is conveyed out from the hydraulic steel drawing machine through the cold-feeding off-line roller way.
In the step 1, a control hook steel machine conveying system hooks up a rectangular casting blank and conveys the rectangular casting blank to a material receiving port of a hydraulic steel drawing machine, wherein the control hook steel machine conveying system hooks up the rectangular casting blank and conveys the rectangular casting blank to the material receiving port of the hydraulic steel drawing machine through a casting blank conveying cooling bed;
the control hook steel machine conveying system hooks up the rectangular casting blank, and conveys the rectangular casting blank to a material receiving port of a hydraulic steel drawing machine through a casting blank conveying cooling bed specifically comprises the following steps:
a. the control system controls the steel hooking machine conveying system to hook up the rectangular casting blank, and conveys the rectangular casting blank to a material receiving port of a casting blank transferring cooling bed, wherein the control system is a general control system of a continuous casting machine cold conveying off-line system;
b. the control module of the casting blank transferring cooling bed of the control system monitors signals of the first photoelectric switch, and if the first photoelectric switch monitors that a rectangular casting blank exists at a conveying port of the casting blank transferring cooling bed, the following steps are executed;
c. the casting blank is transferred, the bed control module controls the casting blank to transfer the cooling bed, the rectangular casting blank is transferred and conveyed to the material receiving port of the hydraulic steel drawing machine, wherein the casting blank is transferred, the cooling bed control module executes cooling bed circulation actions to transfer the rectangular casting blank, and the cooling bed circulation actions are as follows in sequence: lifting table up-second transmission device translation-lifting table down-second transmission device return to initial position.
The hydraulic steel drawing machine has the beneficial effects that as the hydraulic steel drawing machine periodically conveys the rectangular casting blank, the off-line time of the casting blank can be accurately ensured, and the off-line temperature of the casting blank can be accurately ensured.
Drawings
FIG. 1 is a front view of a cold feed off-line knockout system of a rectangular casting blank continuous caster of the present invention;
FIG. 2 is a top view of the cold feed off-line knockout system of the rectangular casting blank caster of the present invention;
FIG. 3 is a side plan view of the cold feed off-line knockout system of the rectangular billet caster of the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 1 at A;
FIG. 5 is a schematic view of the hydraulic steel drawing machine at C in FIG. 1;
FIG. 6 is an enlarged view of the structure at B in FIG. 1;
FIG. 7 is an enlarged top view of the structure of FIG. 1 at D;
FIG. 8 is a schematic view of the multi-link structure of FIG. 6;
fig. 9 is an enlarged view of the structure at E in fig. 6.
The reference numerals in the figure are 1, rectangular casting blank; 2. a blank discharging roller way; 3. a hot metal monitoring system; 4. a track bracket; 5. hooking steel machine; 6. transferring the casting blank to a cooling bed; 7. a hydraulic steel drawing machine; 8. cold feeding and discharging roller way; 9. a frame; 10. a walking driving device; 11. a lifting drive; 12. a lifting hook device; 13. a fixed rail; 14. fixing a guide rail frame; 15. a pin shaft; 16. a fixed beam; 17. a lifting oil cylinder; 18. the second fixing seat; 19. a movable beam; 20. a translation cylinder; 21. a movable rail; 22. a movable guide rail frame; 23. a pin shaft; 24. a first photoelectric switch; 25. a gantry rail; 26. a pusher dog mechanism; 27. a connecting rod; 28. an oil cylinder; 29. a push rod; 30. a first fixing seat; 31. a second photoelectric switch; 32. a third photoelectric switch; 33. and a limiting part.
Detailed Description
It should be noted first that, in the various embodiments of the present invention, the terms involved are:
the rack track 25, rack track 25 comprises many horizontal syntropy's slide rail, and rack track 25 is used for transporting the rectangle casting blank, and the rectangle casting blank can be perpendicular to slide rail, by many slide rail balance bearing.
The blank ejection roller way 2, wherein the blank ejection roller way 2 is an existing blank ejection conveying track.
The steel hooking machine conveying system is a conveying system for conveying rectangular casting blanks in the prior art, and comprises a steel hooking machine 5, a hot metal monitoring system, a steel hooking machine walking rail and a control system.
And a hot metal monitoring system 3, wherein a hot metal monitor monitors the hot metal and outputs a monitoring signal.
The limiting part 33, specifically a block or a blocking pin, when the pusher dog mechanism 26 rotates to a position, the limiting part 33 can prevent the pusher dog mechanism 26 from continuing to rotate, in the invention, the limiting part 33 has the function of pushing the rectangular casting blank when the pusher dog mechanism 26 is positioned on the upper edge of the slide rail and the limiting part 33 has the function of preventing the pusher dog mechanism 26 from being pressed and rotated to the lower edge of the slide rail by the rectangular casting blank when the pusher dog mechanism 26 pushes the rectangular casting blank, so as to terminate the operation of pushing the rectangular casting blank.
The pusher dog mechanism 26 is mainly used for pushing rectangular casting blanks and is driven by sliding blocks on sliding rails of the rack rails 25.
As shown in fig. 9, the pusher dog mechanism 26 is used for pushing the rectangular casting blank under the drive of the sliding block, and is rotationally connected with the sliding block, the pusher dog mechanism 26 is provided with an inclined plane which faces the opposite direction of the conveying direction of the rectangular casting blank, when the pusher dog mechanism 26 retreats, the inclined plane of the pusher dog mechanism 26 can meet the rectangular casting blank, and the pusher dog mechanism 26 can be pressed into the track by the rectangular casting blank under the guidance of the inclined plane because the rectangular casting blank is far heavier than the pusher dog mechanism 26;
in the embodiment in which the finger mechanism 26, the slider and the limiting portion constitute a dead weight resetting mechanism, the upper end and the lower end of the rotational connection portion of the finger mechanism 26 have a weight difference, the finger mechanism 26 can extend its upper end out of the upper edge of the slide rail by its own weight, and when encountering a rectangular casting blank, the inclined surface on the finger mechanism will retract into the lower edge of the slide rail.
The cold-feeding off-line blank discharging scheme of the rectangular casting blank continuous casting machine provided by the embodiment of the invention is described in detail below through a plurality of specific embodiments.
Referring to fig. 1, 2 and 6, which are schematic diagrams illustrating a cold-feeding offline knockout system of a rectangular casting blank continuous casting machine according to an embodiment of the present invention, the cold-feeding offline knockout system of a rectangular casting blank continuous casting machine includes:
The hydraulic steel drawing machine 7, the hydraulic steel drawing machine 7 includes:
the rack track 25, the rack track 25 is made up of a plurality of horizontal equidirectional slide rails;
the pusher dog mechanism 26 is in sliding connection with the slide rail through a slide block, the pusher dog mechanism 26 is rotationally connected to the slide block, a limiting part is arranged on the slide block, the limiting part and the pusher dog mechanism 26 form a one-way reset mechanism, the upper edge of the pusher dog mechanism 26 is lower than the upper edge of the slide rail when the slide block retreats and encounters a rectangular casting blank, and the limiting part limits the pusher dog mechanism 26 when the slide block advances, so that the upper edge of the pusher dog mechanism 26 is always higher than the upper edge of the slide rail;
the first transmission device outputs linear reciprocating power;
each sliding rail is provided with at least one sliding block, each sliding block is provided with a pusher dog mechanism 26, a row of sliding blocks are distributed in parallel in a vertical direction of the conveying direction of the rack track 25, the first transmission device is simultaneously in transmission connection with a row of sliding blocks, and the transmission direction of the first transmission device is consistent with the conveying direction of the rack track, wherein the sliding blocks of a row are formed by arranging a plurality of sliding blocks on the sliding rails;
a blank ejection roller way 2;
A steel hooking machine conveying system;
a cold feed off-line roller path 8;
the discharge port of the knockout roller way 2 is connected with the material receiving port of the hydraulic steel drawing machine 7 through the steel hooking machine conveying system, and the discharge port of the hydraulic steel drawing machine 7 is connected with the cold feeding and discharging roller way 8.
In the above embodiment, after the rectangular casting blank 1 comes out from the blank discharging roller way 2, the rectangular casting blank 1 is transported to the hydraulic steel drawing machine 7 through the steel hooking machine conveying system, the hydraulic steel drawing machine 7 pushes the rectangular casting blank 1 onto the cold-feeding and discharging roller way 8, and the rectangular casting blank is conveyed out through the cold-feeding and discharging roller way 8.
The hydraulic steel drawing machine 7 conveys the rectangular casting blank 1 in such a way that the rectangular casting blank 1 is conveyed to a material receiving port of the hydraulic steel drawing machine 7 by a steel hooking machine conveying system and then is pushed to a material discharging port of the hydraulic steel drawing machine 7 by a pusher dog mechanism 26 on the hydraulic steel drawing machine 7;
the rack track 25 of the hydraulic steel drawing machine 7 is used as a main body, the rack track 25 is composed of a plurality of sliding rails, the sliding rails are arranged in parallel, the rectangular casting blank 1 is vertically placed on the sliding rails, a sliding block is arranged below the sliding rails and is in sliding connection with the sliding blocks, a pusher dog mechanism 26 is arranged on the sliding blocks, the sliding blocks are driven by a first transmission device, the sliding blocks drive the pusher dog mechanism 26 to push the rectangular casting blank 1 to a discharge port of the hydraulic steel drawing machine 7, the sliding blocks and the pusher dog mechanism 26 form a one-way reset mechanism, the purpose is that the pusher dog mechanism 26 reciprocates along the sliding rails, the pusher dog mechanism 26 must be hidden under the sliding rails when the pusher dog mechanism 26 backs, and the pusher dog mechanism 26 must ascend to the sliding rails to push the rectangular casting blank when the pusher dog mechanism 26 advances, so that the rectangular casting blank 1 can be pushed to the discharge port of the hydraulic steel drawing machine 7 from the feed port of the hydraulic steel drawing machine 7 after the advancing and backing operation are repeated continuously, and the one-way reset mechanism can be a dead weight reset mechanism or reset the pusher dog mechanism 26 by using an elastic piece;
The pusher dog mechanism 26 is mainly used for pushing rectangular casting blanks and is driven by sliding blocks on sliding rails of the rack rails 25.
As shown in fig. 9, the pusher dog mechanism 26 is used for pushing the rectangular casting blank under the drive of the sliding block, and is rotationally connected with the sliding block, the pusher dog mechanism 26 is provided with an inclined plane which faces the opposite direction of the conveying direction of the rectangular casting blank, when the pusher dog mechanism 26 retreats, the inclined plane of the pusher dog mechanism 26 can meet the rectangular casting blank, and the pusher dog mechanism 26 can be pressed into the track by the rectangular casting blank under the guidance of the inclined plane because the rectangular casting blank is far heavier than the pusher dog mechanism 26;
in the embodiment in which the finger mechanism 26, the slider and the limiting portion constitute a dead weight resetting mechanism, the upper end and the lower end of the rotational connection portion of the finger mechanism 26 have a weight difference, the finger mechanism 26 can extend its upper end out of the upper edge of the slide rail by its own weight, and when encountering a rectangular casting blank, the inclined surface on the finger mechanism will retract into the lower edge of the slide rail.
In embodiments where the finger mechanism 26 is configured to utilize an elastic member to return the finger mechanism 26, the elastic member may be a compression spring, a torsion spring, or a tension spring, and the elastic member may return the finger mechanism 26 to the upper edge of the rail, when the finger mechanism 26 is retracted and encounters a rectangular billet, the finger mechanism 26 is subjected to downward pressure of the rectangular billet, the elastic member is compressed, and the finger mechanism 26 is retracted to the lower edge of the rail.
In fig. 6, the first transmission device may be a hydraulic cylinder, or a combination of a servo motor and a ball screw nut pair, the transmission mechanism is used for providing linear reciprocating power, the output end of the transmission mechanism is simultaneously connected with a row of sliding blocks, the row of sliding blocks are arranged in a vertical direction of the conveying direction of the rack rail 25, the output end of the transmission mechanism is simultaneously connected with the row of sliding blocks, so that the row of sliding blocks can simultaneously advance or retreat, the claw mechanism 26 on the row of sliding blocks can simultaneously push rectangular casting blanks, the rectangular casting blanks are stably conveyed from the material receiving port of the hydraulic steel drawing machine 7 to the material discharging port of the hydraulic steel drawing machine 7, and the claw mechanism 26 can be accurately controlled to push the rectangular casting blanks in a period due to the controllable reciprocating movement period of the first transmission device, so that the conveying time of the rectangular casting blanks is controllable, and finally the offline temperature of the rectangular casting blanks is controlled, and the offline temperature of the rectangular casting blanks is ensured, wherein the blank discharging 2, the steel hooking machine conveying system and the cold-conveying offline roller 8 are all in the prior art.
Further, referring to fig. 1, 3 and 5, in another embodiment of a cold-feeding, off-line and knockout system of a rectangular casting blank continuous casting machine according to the present invention, the steel hooking machine conveying system includes:
The track support 4 is vertical to the casting flow direction of the blank ejection roller way 2;
a steel hooking machine 5;
a hot metal monitoring system 3;
the control system is electrically connected with the steel hooking machine 5 and the hot metal monitoring system 3 respectively;
the steel hooking machine 5 is arranged on the track support 4, the steel hooking machine 5 can move on the track support 4, one end of the track support 4 is positioned at the upper end of a discharge port of the knockout roller way 2, the other end of the track support 4 is positioned at the upper end of a material receiving port of the hydraulic steel drawing machine 7, and the track support 4 at the upper end of the knockout roller way is provided with the hot metal monitoring system 3.
In the above embodiment, the steel hooking machine conveying system specifically comprises a track bracket 4, a steel hooking machine 5, a hot metal monitoring system 3 and a control system, wherein the hot metal monitoring system 3 is used for monitoring whether the discharge end of the blank discharging roller way 2 is provided with a rectangular casting blank, if the discharge end of the blank discharging roller way 2 is provided with a rectangular casting blank, a signal is sent to the control system, the control system drives the steel hooking machine 5 to hook the rectangular casting blank from the blank discharging roller way 2 and convey the rectangular casting blank to the material receiving port of the hydraulic steel drawing machine 7, the hot metal monitoring system 3 can be fixed on the track bracket 4, the track bracket 4 provides a walking track for the steel hooking machine 5, and the track bracket 4, the steel hooking machine 5, the hot metal monitoring system 3 and the control system are all mature in the prior art.
Further, referring to fig. 3, in another embodiment of the cold-feeding and off-line billet tapping system of the rectangular casting blank continuous caster of the present invention, along the casting flow direction of the billet tapping roller table 2, at the discharge port of the billet tapping roller table 2, a plurality of gaps along the radial direction of the billet tapping roller table 2 are intermittently distributed on the billet tapping roller table 2, and a plurality of lifting hooks for lifting the rectangular casting blank are arranged at the lower end of the steel hooking machine 5, and the lifting hooks can pass through the billet tapping roller table 2 through the gaps.
In the above embodiment, the knockout roller way 2 is provided with a plurality of intermittent areas, wherein the intermittent areas are a plurality of gaps which are intermittently distributed on the knockout roller way 2 along the radial direction of the knockout roller way 2, the intermittent areas are far smaller than the length of the rectangular casting blank and do not affect the circulation of the rectangular casting blank, the intermittent areas can allow lifting hooks at the lower end of the steel hooking machine 5 to be inserted into the lower end of the knockout roller way 2, and the steel hooking machine 5 can hook and transport the rectangular casting blank after being inserted into the knockout roller way 2.
Further, referring to fig. 6 and 8, in another embodiment of the cold-feeding, off-line and blank-discharging system of the rectangular casting blank continuous casting machine of the present invention, the first transmission device is a crank block linkage mechanism; or (b)
The first transmission device is a multi-link mechanism and an oil cylinder 28, one end of the multi-link mechanism is fixed, the other end of the multi-link mechanism is rotationally connected with the sliding block, one end of the oil cylinder 28 is fixed, the other end of the oil cylinder is in transmission connection with one link of the multi-link mechanism, and the rotation direction of the multi-link mechanism and the transmission direction of the oil cylinder 28 are consistent with the conveying direction of the rack track 25;
The bottom of the multi-link mechanism and the bottom of the oil cylinder 28 are provided with a first fixing seat 30, and a fixed end of the multi-link mechanism and a fixed end of the oil cylinder 28 are both fixed on the first fixing seat 30.
In the above embodiment, the first transmission device mainly provides linear reciprocating power, and the crank slider linkage mechanism can provide linear reciprocating power;
the multi-link mechanism and the oil cylinder 28 can also provide periodic reciprocating power, and the reciprocating power of the oil cylinder 28 is transmitted to a row of sliding blocks through the multi-link mechanism, so that the row of pusher dog mechanism 26 is finally driven to push the rectangular casting blank.
Further, referring to fig. 6, in another embodiment of a cold-feeding and off-line blank discharging system of a rectangular casting blank continuous casting machine according to the present invention, a blank transfer cooling bed 6 is provided between the hydraulic steel drawing machine 7 and the hook steel machine conveying system, a discharge port of the hydraulic steel drawing machine 7 is connected with a cold-feeding and off-line roller table 8 through the blank transfer cooling bed 6, and the blank transfer cooling bed 6 includes:
a plurality of fixed rails 13, wherein the fixed rails 13 are fixed relative to the ground;
the movable rails 21 are arranged, the movable rails 21 are arranged on two sides of the fixed rail 13;
A horizontal lifting table located directly below the fixed rail 13 and the movable rail 21;
the linear guide rail is fixed on the horizontal lifting platform, a sliding block is arranged on the linear guide rail, and the movable rail 21 is in sliding connection with the movable rail 21 through the sliding block;
the second transmission device is fixed at the upper end of the horizontal lifting table and is in transmission connection with the sliding block along the linear direction of the fixed track.
In the above embodiment, a casting blank transferring cooling bed 6 is further arranged between the hydraulic steel drawing machine 7 and the steel hooking machine conveying system, the fixed rail 13 on the casting blank transferring cooling bed 6 serves the purpose of holding and supporting the rectangular casting blank when the rectangular casting blank is conveyed, and the steel hooking machine conveying system conveys the rectangular casting blank on the blank discharging roller table 2 to the fixed rail 13 when the rectangular casting blank is conveyed, and at least two fixed rails 13 can bear the rectangular casting blank; when in conveying, the movable rail 21 beside the fixed rail 13 can raise the height of the rectangular casting blank, so that the rectangular casting blank is higher than the upper edge of the fixed rail 13 and is far away from the fixed rail 13; the principle of lifting the rectangular casting blank by the movable rail 21 is that a horizontal lifting table connected with the lower end of the movable rail 21 is lifted to lift the movable rail 21; after the rectangular casting blank is lifted by the movable rail 21, the movable rail 21 is moved forwards relative to the horizontal lifting table by the linear guide rail and the second transmission device between the movable rail 21 and the horizontal lifting table, the movable rail 21 is driven to move forwards, and then the rectangular casting blank is conveyed forwards relative to the fixed rail 13 by the movable rail 21; after the forward conveying is finished, the horizontal lifting table is lowered to drive the movable rail 21 to be lowered, the movable rail 21 is used for placing the rectangular casting blank on the fixed rail 13 again, at the moment, the rectangular casting blank moves forward for one time relative to the fixed rail 13, and then the second transmission device is used for pulling the movable rail 21 back to the initial position again, so that the transfer of the rectangular casting blank for one period is completed;
The casting blank transferring cooling bed 6 can continuously lift and convey the rectangular casting blank, and continuously convey the rectangular casting blank conveyed by the steel hooking machine conveying system.
The conveying of the casting blank conveying cooling bed 6 has periodicity, so the steel hooking machine conveying system can place rectangular casting blanks on the fixed rail 13 when the horizontal lifting platform in the casting blank conveying cooling bed 6 descends, the casting blank conveying cooling bed 6 has the further advantage of periodic conveying, and therefore the conveying time is certain, if the conveying time of the rectangular casting blanks is to be controlled, the periodicity of the casting blank conveying cooling bed 6 can be directly regulated, the purpose of controlling the rectangular offline time is achieved, and then the offline temperature of the rectangular is controlled.
Further, in another embodiment of the cold-feeding and off-line blank discharging system of the rectangular casting blank continuous casting machine of the present invention, an elastic member is provided between the finger mechanism 26 and the slider, one end of the finger mechanism 26 is rotationally connected with the slider, the other end of the finger mechanism 26 is connected with the slider through the elastic member, when the elastic member is in a compressed state, the upper edge of the finger mechanism 26 is lower than the upper edge of the sliding rail, and when the elastic member is in a released state, the upper edge of the finger mechanism 26 is higher than the upper edge of the sliding rail, and the limiting portion is the elastic member.
In the above embodiment, in order to achieve the purpose that the upper edge of the pawl mechanism 26 is lower than the upper edge of the slide rail when the slide block retreats and encounters the rectangular casting blank, and the limit part limits the pawl mechanism 26 when the slide block advances, so that the upper edge of the pawl mechanism 26 is always higher than the upper edge of the slide rail and conveys the rectangular casting blank, for this purpose, the pawl mechanism 26 and the slide block are rotationally connected, in one embodiment, a torque spring can be installed at the rotationally connected position of the pawl mechanism 26 and the slide block, the upper edge position of the pawl mechanism 26 is always fixed at the upper edge position of the slide rail by the elasticity of the torque spring, after the pawl mechanism 26 retreats and encounters the rectangular casting blank, the pawl mechanism 26 is pressed by the rectangular casting blank, the pawl mechanism 26 is pressed to the lower edge position of the slide rail, and at this time the torque spring is compressed, and when the pawl mechanism 26 retreats to the position outside the rectangular casting blank, the torque spring is released to compress, and the pawl mechanism 26 is reset to the upper edge position of the slide rail. The structure can convey the rectangular casting blank forwards under the condition that the first transmission device only provides linear reciprocating power.
Further, referring to fig. 9, in another embodiment of the cold-feeding and off-line blank discharging system of the rectangular casting machine according to the present invention, the lower portion of the rotational connection portion of the finger mechanism 26 of the unidirectional reset mechanism is heavier than the upper portion of the rotational connection portion of the finger mechanism 26, and when the finger mechanism 26 is located at the lower edge of the slide rail, the limiting portion is located at one side of the finger mechanism 26 in the rotational region of the finger mechanism 26, and the limiting portion is fixed with the slide block.
In the above embodiment, the finger mechanism 26 is skillfully involved, so that the finger mechanism 26 can realize self-reset only by relying on dead weight, the finger mechanism 26 is used for pushing the rectangular casting blank under the drive of the sliding block, the finger mechanism 26 is rotationally connected with the sliding block, the finger mechanism 26 is provided with an inclined plane which faces the opposite direction of the conveying direction of the rectangular casting blank, when the finger mechanism 26 retreats, the inclined plane of the finger mechanism 26 can meet the rectangular casting blank, and the finger mechanism 26 can be pressed into the track by the rectangular casting blank under the guidance of the inclined plane because the rectangular casting blank is far heavier than the finger mechanism 26; the weight difference exists between the upper end and the lower end of the rotating connection part of the pusher dog mechanism 26, the upper end of the pusher dog mechanism 26 can extend out of the upper edge of the slide rail by self gravity, and the inclined surface on the pusher dog mechanism can retract into the lower edge of the slide rail when encountering a rectangular casting blank.
Further, in another embodiment of the cold-feeding, offline and knockout system of the rectangular casting blank continuous casting machine, the invention further comprises a casting blank transferring cooling bed control module, wherein a first photoelectric switch 24 is arranged at a material receiving port of the casting blank transferring cooling bed 6;
the casting blank transferring cooling bed control module controls the horizontal lifting table and the second transmission device to translate and convey the rectangular casting blank 1 to the conveying port of the hydraulic steel drawing machine 7 after receiving the rectangular casting blank 1 at the conveying port of the fixed rail 13 monitored by the first photoelectric switch 24.
In the above embodiment, the first photoelectric switch 24 is disposed at the receiving port of the casting blank transferring cooling bed 6, so that the operation can be stopped when there is no rectangular casting blank on the casting blank transferring cooling bed 6, and energy is saved.
Further, in another embodiment of the cold-feeding off-line blank discharging system of the rectangular casting blank continuous casting machine, a detection device 32 for detecting the rectangular casting blank is arranged on the cold-feeding off-line roller way 8;
the cold feed off-line roller way 8 comprises a first group of roller ways and a second group of roller ways;
in the above embodiment, the detection device 32 can monitor whether the rectangular casting blank exists on the cold-feeding and offline roller way 8, and further stop working when the rectangular casting blank does not exist on the cold-feeding and offline roller way 8, so that energy is saved.
Further, in another embodiment of the cold-feeding and discharging system of the rectangular casting blank continuous casting machine, when the detection device on the cold-feeding and discharging roller table detects that the rectangular casting blank arrives, the cold-feeding and discharging roller table is started, the rectangular casting blank is ready to be conveyed, for 6-7.6 m fixed-length blanks, the cold-feeding and discharging second group of roller tables are started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the cold-feeding and discharging second group of roller tables are conveyed to steel rolling at the speed of 60m/min, after the detection device detects that the rectangular casting blank is conveyed to the whole, the cold-feeding and discharging roller table is stopped, the hydraulic steel drawing machine continues pushing blanks, for the fixed-length blanks larger than 7.6m, the cold-feeding and discharging roller table is started to convey the rectangular casting blank 1 at the speed of 60m/min, after the cold-feeding and discharging roller table is conveyed to steel rolling, the cold-feeding and discharging roller table is stopped, and the hydraulic steel drawing machine continues pushing blanks.
In the above embodiment, the cold-feeding offline roller way 8 is composed of a first group of roller ways and a second group of roller ways, and the first group of roller ways and the second group of roller ways can select the roller ways for conveying according to the length of the rectangular casting blank.
Referring to fig. 6, a schematic diagram of a cold-feeding off-line knockout system of a rectangular casting blank continuous casting machine according to an embodiment of the invention is shown, and a hydraulic steel drawing machine includes:
the rack track 25, the rack track 25 is made up of a plurality of horizontal equidirectional slide rails;
the pusher dog mechanism 26 is in sliding connection with the slide rail through a slide block, the pusher dog mechanism 26 is rotationally connected to the slide block, a limiting part is arranged on the slide block, the limiting part and the pusher dog mechanism 26 form a one-way reset mechanism, the upper edge of the pusher dog mechanism 26 is lower than the upper edge of the slide rail when the slide block retreats and encounters a rectangular casting blank, and the limiting part limits the pusher dog mechanism 26 when the slide block advances, so that the upper edge of the pusher dog mechanism 26 is always higher than the upper edge of the slide rail;
the first transmission device outputs linear reciprocating power;
each sliding rail is provided with at least one sliding block, a row of sliding blocks are distributed in parallel in a direction perpendicular to the conveying direction of the rack track 25, the first transmission device is simultaneously in transmission connection with a row of sliding blocks, and the transmission direction of the first transmission device is consistent with the conveying direction of the rack track, wherein a row of sliding blocks are formed by arranging a plurality of sliding blocks on the sliding rails.
In the above embodiment, the manner in which the hydraulic steel drawing machine 7 conveys the rectangular casting blank 1 is that the rectangular casting blank 1 is conveyed to the material receiving port of the hydraulic steel drawing machine 7 by the steel hooking machine conveying system and then is pushed to the material discharging port of the hydraulic steel drawing machine 7 by the pusher dog mechanism 26 on the hydraulic steel drawing machine 7;
the rack track 25 of the hydraulic steel drawing machine 7 is used as a main body, the rack track 25 is composed of a plurality of sliding rails, the sliding rails are arranged in parallel, the rectangular casting blank 1 is vertically placed on the sliding rails, a sliding block is arranged below the sliding rails and is in sliding connection with the sliding blocks, a pusher dog mechanism 26 is arranged on the sliding blocks, the sliding blocks are driven by a transmission device, the sliding blocks drive the pusher dog mechanism 26 to push the rectangular casting blank 1 to a discharge port of the hydraulic steel drawing machine 7, the sliding blocks and the pusher dog mechanism 26 form a one-way reset mechanism, the purpose is that the pusher dog mechanism 26 reciprocates along the sliding rails, the pusher dog mechanism 26 must be hidden below the sliding rails when the pusher dog mechanism 26 backs, and must rise to the sliding rails to push the rectangular casting blank when the pusher dog mechanism 26 advances, so that the pusher dog mechanism 26 can push the rectangular casting blank 1 from the feed port of the hydraulic steel drawing machine 7 to the discharge port of the hydraulic steel drawing machine 7 after the repeated advancing and backing operations, and the one-way reset mechanism can be a dead weight reset mechanism or reset the pusher dog mechanism 26 by an elastic piece;
The pusher dog mechanism 26 is mainly used for pushing rectangular casting blanks and is driven by sliding blocks on sliding rails of the rack rails 25.
As shown in fig. 9, the pusher dog mechanism 26 is used for pushing the rectangular casting blank under the drive of the sliding block, and is rotationally connected with the sliding block, the pusher dog mechanism 26 is provided with an inclined plane which faces the opposite direction of the conveying direction of the rectangular casting blank, when the pusher dog mechanism 26 retreats, the inclined plane of the pusher dog mechanism 26 can meet the rectangular casting blank, and the pusher dog mechanism 26 can be pressed into the track by the rectangular casting blank under the guidance of the inclined plane because the rectangular casting blank is far heavier than the pusher dog mechanism 26;
in the embodiment in which the finger mechanism 26, the slider and the limiting portion constitute a dead weight resetting mechanism, the upper end and the lower end of the rotational connection portion of the finger mechanism 26 have a weight difference, the finger mechanism 26 can extend its upper end out of the upper edge of the slide rail by its own weight, and when encountering a rectangular casting blank, the inclined surface on the finger mechanism will retract into the lower edge of the slide rail.
In the embodiment where the pawl mechanism 26 is reset by using an elastic member, the elastic member may be a compression spring, a torsion spring or a tension spring, and the elastic member may reset the pawl mechanism 26 to the upper edge of the slide rail, when the pawl mechanism 26 retreats and encounters a rectangular casting blank, the pawl mechanism 26 is pressed downward by the rectangular casting blank, the elastic member is compressed, and the pawl mechanism 26 retracts to the lower edge of the slide rail.
The embodiment of the invention provides a cold-feeding off-line blank discharging method of a rectangular casting blank continuous casting machine, which comprises the following steps:
step 1: after a control system acquires a billet ejection signal of the hot metal monitoring system, controlling a steel hooking machine conveying system to hook a rectangular casting billet and convey the rectangular casting billet to a material receiving port of a hydraulic steel drawing machine, wherein the billet ejection signal is the billet ejection signal monitored by the hot metal monitoring system when the rectangular casting billet is arranged at a material discharging port of a billet ejection roller way, and the control system is a general control system of a continuous casting machine cold feeding and discharging system;
step 2: the control system starts the hydraulic steel drawing machine and the cold-feeding off-line roller way, and the rectangular casting blank is conveyed out from the hydraulic steel drawing machine through the cold-feeding off-line roller way.
In the above embodiment, the control system is a general control system of a continuous casting machine cold-feeding and off-line system, and monitors the rectangular casting blank at the discharge port of the blank discharging roller way 2 through the metal monitoring system, and after the rectangular casting blank is monitored, respectively controls the steel hooking machine conveying system, the hydraulic steel drawing machine 7 and the cold-feeding and off-line roller way 8 to transport the rectangular casting blank, wherein the steel hooking machine conveying system is a known technology in the prior art.
In the step 1, a steel hooking machine conveying system is controlled to hook up the rectangular casting blank and convey the rectangular casting blank to a material receiving port of a hydraulic steel drawing machine;
The control hook steel machine conveying system hooks up the rectangular casting blank, and conveys the rectangular casting blank to a material receiving port of a hydraulic steel drawing machine through a casting blank conveying cooling bed specifically comprises the following steps:
a. the control system controls the steel hooking machine conveying system to hook up the rectangular casting blank, and conveys the rectangular casting blank to a material receiving port of a casting blank transferring cooling bed, wherein the control system is a general control system of a continuous casting machine cold conveying off-line system;
b. the control module of the casting blank transferring cooling bed of the control system monitors signals of the first photoelectric switch, and if the first photoelectric switch monitors that a rectangular casting blank exists at a conveying port of the casting blank transferring cooling bed, the following steps are executed;
c. the casting blank is transferred, the bed control module controls the casting blank to transfer the cooling bed, the rectangular casting blank is transferred and conveyed to the material receiving port of the hydraulic steel drawing machine, wherein the casting blank is transferred, the cooling bed control module executes cooling bed circulation actions to transfer the rectangular casting blank, and the cooling bed circulation actions are as follows in sequence: lifting table up-second transmission device translation-lifting table down-second transmission device return to initial position.
In the above embodiment, the control system controls the steel hooking machine conveying system to hook the rectangular casting blank, conveys the rectangular casting blank to the receiving port of the casting blank conveying cooling bed, judges the position of the rectangular casting blank on the casting blank conveying cooling bed according to the signal of the first photoelectric switch, and conveys the rectangular casting blank to the hydraulic steel drawing machine.
Wherein the circulation action of the cooling bed is as follows: the lifting table ascends, the second transmission device translates, the lifting table descends, and the second transmission device returns to the initial position, and the action can periodically convey the rectangular casting blank to the feed inlet of the hydraulic steel drawing machine 7.
The rectangular casting blank is conveyed to the hydraulic steel drawing machine by the steel hooking machine, the rectangular casting blank is gathered together and conveyed by the hydraulic steel drawing machine, the casting blank can be accurately positioned on the conveying roller way, and the casting blank is gathered in advance, so that a crane clamp can be convenient to directly clamp the casting blank for temporary line drawing.
In the prior art, when a steel hooking machine directly transfers a rectangular casting blank to a roll table for another line feeding, the steel hooking machine is difficult to accurately position the casting blank on the roll table, the line feeding of the casting blank is wasted greatly when the line feeding is needed in the conveying process of the casting blank, the line feeding conveying efficiency of the casting blank is affected, the surface quality and the line feeding temperature of the lower surface of the casting blank cannot reach the standards, and in the invention, the adopted hydraulic steel drawing machine 7 and the casting blank conveying cooling bed 6 are both periodically controllable conveying systems, and the line feeding time can be accurately controlled in the conveying process, so that the line feeding temperature is controlled;
when a single casting blank is required to be temporarily put down, the prior art needs to occupy the transportation of the casting blank, and other casting blanks are influenced to be transported.
As shown in fig. 3, the hot metal detection system 3 is a temperature sensing measurement device, and is installed and fixed on the track bracket 4, and the radiation range of the lens covers the whole knockout roller way 2, and one lens is installed per flow roller way. When the rectangular casting blank 1 enters the monitoring area, the hot metal detection system detects a heat source and sends a signal to the control system, and the rectangular casting blank 1 on the blank ejection roller way 2 is detected to pass through.
As shown in fig. 5, the steel hooking machine 5 includes a frame 9, a traveling driving device 10, a lifting driving device 11, a lifting hook device 12, and the like, which are all conventional. The lifting hook type is a ladder hook type.
As shown in fig. 4, the casting blank transferring cooling bed 6 is installed at the side of the casting blank discharging roller table 2, and comprises a fixed rail 13 for placing a rectangular casting blank 1, wherein the fixed rail 13 is connected with a fixed rail frame 14 through a pin shaft 15, the fixed rail frame 14 is combined on a fixed beam 16 through a high-strength bolt, and the fixed beam 16 is connected with a civil foundation through grouting materials. One end of the lifting cylinder 17 is connected with a second fixed seat 18, the other end of the lifting cylinder is connected with a movable beam 19, and the second fixed seat 18 is connected with a civil engineering foundation through grouting material. The translation cylinder 20 has one end connected to the fixed beam 16 and the other end connected to the movable beam 19. The movable rail 21 is connected with the movable guide rail frame 22 through a pin 23, and the movable guide rail frame 22 is combined on the movable beam 19 through a high-strength bolt. The casting blank transferring cooling bed 6 is provided with a first photoelectric switch 24 for detecting whether the rectangular casting blank 1 is in place or not.
As shown in fig. 6, the hydraulic steel drawing machine 7 is a four-bar mechanism and comprises a rack rail 25 for placing the rectangular casting blank 1, the rack rail 25 is fixed on a civil engineering foundation, and a pusher dog mechanism 26 slides in the middle of the rack rail 25 for pushing the casting blank. The finger mechanism 26 is hinged to a push rod 29 by a link 27. One end of the oil cylinder 28 is hinged on the push rod 29, and the other end is hinged on the oil cylinder first fixing seat 30. The cylinder fixing base 30 is connected with the civil engineering foundation. The hydraulic steel drawing machine is provided with a first photoelectric switch 24 for detecting whether the rectangular casting blank 1 is in place or not.
Referring to fig. 4, 6 and 7, the present invention further includes a control device that receives the detection results of the hot metal detection system 3, the first photoelectric switch 24, the second photoelectric switch 31 and the third photoelectric switch 32, and sends instructions to the traveling motor and the lifting motor of the steel hooking machine 5 to control the traveling and hooking actions thereof, thereby controlling the steel hooking machine 5 to transfer the rectangular casting blank 1 to the casting blank transfer cooling bed 6. The control device receives detection results of the first photoelectric switch 24 and the second photoelectric switch 31, and sends instructions to the lifting oil cylinder 17 and the translation oil cylinder 20 to control lifting and translation of the rectangular casting blank 1, so that the casting blank transferring cooling bed 6 is controlled to transfer the rectangular casting blank 1 to the direction of the hydraulic steel drawing machine 7. The control device receives detection results of the second photoelectric switch 31 and the third photoelectric switch 32, and sends instructions to the oil cylinder 28 to control pushing out or retracting of the rectangular casting blank 1, so that the hydraulic steel drawing machine 7 is controlled to transfer the rectangular casting blank 1 to the cold feeding and discharging roller way 8.
The working process of the invention comprises the following steps:
when a certain flow of the blank discharging roller way 2 sends out a signal of the rectangular casting blank 1, the steel hooking machine 5 drives to the blank discharging roller way 2 from the standby position, at the moment, the lifting hook is in the high position, the steel hooking machine 5 is controlled by the control system to stop at the blank taking position, the lifting hook descends to the high hook position to take the blank, after the blank taking is finished, the lifting hook ascends to the position, which is higher than the blank surface by 100mm, of the bottom of the hook, the lifting hook descends to the position, which is lower than the blank surface by 100mm, of the lifting hook, after the blank taking is finished, the steel hooking machine 5 ascends to the position, which is higher than the blank surface by 100mm, of the casting blank is all arranged at the high and low hook positions, and the single blank taking is finished.
When the control system sends out an instruction and the rectangular casting blanks 1 need to be cold-fed and offline, the steel hooking machine 5 is controlled by the control system to convey the two rectangular casting blanks 1 to the position above the casting blank conveying cooling bed 6. When the signal of the first photoelectric switch 24 at the rack of the casting blank transferring cooling bed 6 is 0, the casting blank 1 is not shown, at the moment, the lifting hook of the steel hooking machine 5 descends to the low position, two rectangular casting blanks 1 are placed on the rack of the casting blank transferring cooling bed 6, the lifting hook of the steel hooking machine 5 exits, ascends to the high position, and moves to the next blank taking position to wait for blank taking; otherwise, the hooking machine 5 is in a waiting unhooking state.
When the signal of the first photoelectric switch 24 at the rack of the casting blank transferring cooling bed 6 is 1, the rectangular casting blank 1 is shown, the lifting oil cylinder 17 of the casting blank transferring cooling bed 6 extends out, the cooling bed 6 is lifted to be connected to the casting blank 1, and then the translation oil cylinder 20 extends out. The lifting cylinder 17 is retracted, the cooling bed 6 is lowered, and the rectangular casting blank 1 is translated forward by a single step length L1. The translation cylinder 20 is retracted, and the casting blank transferring cooling bed 6 returns to the original position, thereby completing one cycle. A cycle motion sequence of the casting blank transferring cooling bed 6: ascending, translating and transporting the blank, descending and returning. Considering that the single step length L1 is smaller than the parallel width W of the two rectangular billets 1, it is necessary to translate the two single step lengths L as a complete translation action before the billets are discharged by the hooking machine 5.
When the casting blank is required to be cold-fed and offline, after the hydraulic steel drawing machine 7 receives a signal that the rectangular casting blank 1 arrives, the oil cylinder 28 pushes out, and the rectangular casting blank 1 is pushed backwards by one step length L2. Three pusher dogs are arranged on the hydraulic steel drawing machine 7, and after three times of steel pushing, the rectangular casting blank 1 is pushed onto the cold-feeding off-line roller way 8:
when the detection device on the cold-feeding roll table detects that the rectangular casting blank arrives, the cold-feeding roll table is started, the rectangular casting blank is ready to be conveyed, for 6-7.6 m fixed-size blanks, the cold-feeding second group of roll tables are started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the conveying of the rectangular casting blank of the cold-feeding second group of roll tables is finished, the first group of roll tables and the second group of roll tables are synchronously started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the detection device detects that the rectangular casting blank is completely conveyed, the cold-feeding roll table is stopped, the hydraulic steel drawing machine continues to push the blank, for the fixed-size blanks of more than 7.6m, the cold-feeding roll table is completely started, the rectangular casting blank 1 is conveyed to steel rolling at the speed of 60m/min, after the rectangular casting blank of the cold-feeding roll table is completely conveyed, the cold-feeding roll table is stopped, and the hydraulic steel drawing machine continues to push the blank.
If the casting blank is required to be temporarily clamped for offline, when the third photoelectric switch 32 on the cold-feeding offline roller way 8 detects that the rectangular casting blank 1 arrives, it is required to manually judge whether 4 rectangular casting blanks 1 are integrated for offline, and at the moment, 4 rectangular casting blanks 1 stacked together on the hydraulic steel drawing machine 7 are lifted by the clamp once. When the rectangular casting blank 1 needs to be temporarily cut off, more manual intervention is needed, otherwise, a signal cannot be transmitted to a crane.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in this embodiment are merely for explaining the relative positional relationship, movement conditions, and the like between the components in a certain specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly.
Furthermore, the description of "first," "second," etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
The components and structures not specifically described in this embodiment are well known in the art and are not described in detail herein.
The technical solutions between the embodiments may be combined with each other, but it is necessary to base the implementation on the basis of those skilled in the art that when the combination of technical solutions contradicts or cannot be implemented, it should be considered that the combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.
Claims (6)
1. A cold feed off-line knockout system for a rectangular casting blank continuous caster, comprising:
-a hydraulic steel drawing machine (7), the hydraulic steel drawing machine (7) comprising:
the rack rail (25), the rack rail (25) is made up of a plurality of horizontal equidirectional slide rails;
the pusher dog mechanism (26), the pusher dog mechanism (26) is connected with the slide rail in a sliding way through a sliding block, the pusher dog mechanism (26) is connected onto the sliding block in a rotating way, a limiting part is arranged on the sliding block, the limiting part and the pusher dog mechanism (26) form a one-way reset mechanism, the upper edge of the pusher dog mechanism (26) is lower than the upper edge of the slide rail when the sliding block retreats and encounters a rectangular casting blank, and the limiting part limits the pusher dog mechanism (26) when the sliding block advances, so that the upper edge of the pusher dog mechanism (26) is always higher than the upper edge of the slide rail;
the first transmission device outputs linear reciprocating power;
each sliding rail is provided with at least one sliding block, each sliding block is provided with a pusher dog mechanism (26), a row of sliding blocks are distributed in parallel in a vertical direction of the conveying direction of the rack rail (25), the first transmission device is simultaneously in transmission connection with a row of sliding blocks, and the transmission direction of the first transmission device is consistent with the conveying direction of the rack rail, wherein the sliding blocks of a row are formed by arranging a plurality of sliding blocks on the sliding rails;
A knockout roller way (2);
a steel hooking machine conveying system;
a cold feed off-line roller path (8);
the discharge port of the knockout roller way (2) is connected with the material receiving port of the hydraulic steel drawing machine (7) through the steel hooking machine conveying system, and the discharge port of the hydraulic steel drawing machine (7) is connected with the cold feeding and discharging roller way (8);
the first transmission device is a crank slider linkage mechanism; or (b)
The first transmission device is a multi-link mechanism and an oil cylinder (28), one end of the multi-link mechanism is fixed, the other end of the multi-link mechanism is rotationally connected with the sliding block, one end of the oil cylinder (28) is fixed, the other end of the oil cylinder is in transmission connection with one link of the multi-link mechanism, and the rotation direction of the multi-link mechanism and the transmission direction of the oil cylinder (28) are consistent with the conveying direction of the rack track (25);
the bottom of the multi-link mechanism and the bottom of the oil cylinder (28) are provided with a first fixing seat (30), and the fixed end of the multi-link mechanism and the fixed end of the oil cylinder (28) are both fixed on the first fixing seat (30);
the hydraulic steel drawing machine (7) and the steel hooking machine conveying system are provided with a casting blank conveying cooling bed (6), a discharge port of the hydraulic steel drawing machine (7) is connected with a cold conveying off-line roller way (8) through the casting blank conveying cooling bed (6), and the casting blank conveying cooling bed (6) comprises:
A plurality of fixed rails (13), wherein the fixed rails (13) are fixed relative to the ground;
the movable rails (21) are arranged, the movable rails (21) are distributed on two sides of the fixed rail (13);
the horizontal lifting platform is positioned right below the fixed rail (13) and the movable rail (21);
the linear guide rail is fixed on the horizontal lifting table, a sliding block is arranged on the linear guide rail, and the movable rail (21) is in sliding connection with the movable rail (21) through the sliding block;
the second transmission device is fixed at the upper end of the horizontal lifting table and is in transmission connection with the sliding block along the linear direction of the fixed track;
an elastic piece is arranged between the pusher dog mechanism (26) and the sliding block, one end of the pusher dog mechanism (26) is rotationally connected with the sliding block, the other end of the pusher dog mechanism (26) is connected with the sliding block through the elastic piece, when the elastic piece is in a compressed state, the upper edge of the pusher dog mechanism (26) is lower than the upper edge of the sliding rail, and when the elastic piece is in a released state, the upper edge of the pusher dog mechanism (26) is higher than the upper edge of the sliding rail, and the limiting part is the elastic piece;
The lower part of the rotating connection part of the pusher dog mechanism (26) of the one-way reset mechanism is heavier than the upper part of the rotating connection part of the pusher dog mechanism (26), when the pusher dog mechanism (26) is positioned at the lower edge of the sliding rail, in the rotating area of the pusher dog mechanism (26), the limiting part is positioned at one side of the pusher dog mechanism (26), and the limiting part is fixed with the sliding block.
2. The cold feed off-line knockout system of a rectangular casting blank continuous casting machine as claimed in claim 1, wherein said hook steel machine conveying system comprises:
the track support (4), the track support (4) is perpendicular to the casting flow direction of the knockout roller way (2);
a steel hooking machine (5);
a hot metal monitoring system (3);
the control system is electrically connected with the steel hooking machine (5) and the hot metal monitoring system (3) respectively;
the steel hooking machine (5) is arranged on the track support (4), the steel hooking machine (5) can move on the track support (4), one end of the track support (4) is positioned at the upper end of a discharge hole of the blank discharging roller way (2), the other end of the track support is positioned at the upper end of a material receiving hole of the hydraulic steel drawing machine (7), and the track support (4) at the upper end of the blank discharging roller way is provided with the hot metal monitoring system (3).
3. A cold feed and offline tapping system for a rectangular casting blank continuous casting machine according to claim 2, wherein a plurality of gaps along the radial direction of the tapping roller way (2) are intermittently distributed on the tapping roller way (2) along the casting flow direction of the tapping roller way (2) and a plurality of lifting hooks for lifting the rectangular casting blank are arranged at the lower end of the steel hooking machine (5) and can pass through the tapping roller way (2) through the gaps.
4. A cold feed off-line knockout system of a rectangular casting blank continuous casting machine according to claim 1, wherein,
the casting blank transferring cooling bed comprises a casting blank transferring cooling bed control module, wherein a material receiving port of the casting blank transferring cooling bed (6) is provided with a first photoelectric switch (24);
the casting blank transferring cooling bed control module is electrically connected with the first photoelectric switch (24), the horizontal lifting table and the second transmission device;
the cold feed off-line roller way (8) is provided with a detection device (32) for detecting the rectangular casting blank;
the cold feeding off-line roller channel (8) comprises a first group of roller ways and a second group of roller ways;
when the detection device on the cold-feeding roll table detects that the rectangular casting blank arrives, the cold-feeding roll table is started, the rectangular casting blank is ready to be conveyed, for 6-7.6m fixed-size blanks, the cold-feeding second group of roll tables are started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the conveying of the rectangular casting blank of the cold-feeding second group of roll tables is finished, the first group of roll tables and the second group of roll tables are synchronously started, the rectangular casting blank is conveyed to steel rolling at the speed of 60m/min, after the detection device detects that the rectangular casting blank is completely conveyed, the cold-feeding roll table is stopped, the hydraulic steel drawing machine continues to push the blank, for the fixed-size blanks of more than 7.6m, the cold-feeding roll table is completely started, the rectangular casting blank (1) is conveyed to steel rolling at the speed of 60m/min, after the rectangular casting blank of the cold-feeding roll table is completely conveyed, the cold-feeding roll table is stopped, and the hydraulic steel drawing machine continues to push the blank.
5. A method for cold feed off-line ejection of a rectangular cast slab continuous casting machine of a cold feed off-line ejection system of a rectangular cast slab continuous casting machine as recited in any one of claims 1 to 4, comprising:
step 1: after a control system acquires a billet ejection signal of the hot metal monitoring system, controlling a steel hooking machine conveying system to hook a rectangular casting billet and convey the rectangular casting billet to a material receiving port of a hydraulic steel drawing machine, wherein the billet ejection signal is the billet ejection signal monitored by the hot metal monitoring system when the rectangular casting billet is arranged at a material discharging port of a billet ejection roller way, and the control system is a general control system of a continuous casting machine cold feeding and discharging system;
step 2: the control system starts the hydraulic steel drawing machine and the cold-feeding off-line roller way, and the rectangular casting blank is conveyed out from the hydraulic steel drawing machine through the cold-feeding off-line roller way.
6. The cold-feeding off-line blank-discharging method of the rectangular casting blank continuous casting machine according to claim 5, wherein in the step 1, the control of the steel hooking machine conveying system to hook the rectangular casting blank and convey the rectangular casting blank to the material receiving port of the hydraulic steel drawing machine is that the control of the steel hooking machine conveying system to hook the rectangular casting blank and convey the rectangular casting blank to the material receiving port of the hydraulic steel drawing machine through the casting blank transferring cooling bed;
the control hook steel machine conveying system hooks up the rectangular casting blank, and conveys the rectangular casting blank to a material receiving port of a hydraulic steel drawing machine through a casting blank conveying cooling bed specifically comprises the following steps:
a. The control system controls the steel hooking machine conveying system to hook up the rectangular casting blank, and conveys the rectangular casting blank to a material receiving port of a casting blank transferring cooling bed, wherein the control system is a general control system of a continuous casting machine cold conveying off-line system;
b. the control module of the casting blank transferring cooling bed of the control system monitors signals of the first photoelectric switch, and if the first photoelectric switch monitors that a rectangular casting blank exists at a conveying port of the casting blank transferring cooling bed, the following steps are executed;
c. the casting blank is transferred, the bed control module controls the casting blank to transfer the cooling bed, the rectangular casting blank is transferred and conveyed to the material receiving port of the hydraulic steel drawing machine, wherein the casting blank is transferred, the cooling bed control module executes cooling bed circulation actions to transfer the rectangular casting blank, and the cooling bed circulation actions are as follows in sequence: lifting table up-second transmission device translation-lifting table down-second transmission device return to initial position.
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| CN112517869B (en) * | 2019-09-17 | 2024-05-17 | 中冶京诚工程技术有限公司 | Hook head of steel hooking machine |
| CN111774544B (en) * | 2020-07-08 | 2021-09-03 | 马钢集团设计研究院有限责任公司 | Billet discharging system of billet continuous casting machine and billet discharging control method thereof |
| CN111659866B (en) * | 2020-07-30 | 2022-03-08 | 北京中远通科技有限公司 | Knockout control method and knockout control equipment for continuous casting production |
| CN112122570B (en) * | 2020-09-17 | 2022-02-01 | 马钢集团设计研究院有限责任公司 | Use method of compact arrangement system for billet discharging area of billet continuous casting machine |
| CN112453339B (en) * | 2020-11-25 | 2022-05-20 | 中冶南方连铸技术工程有限责任公司 | Steel splitting system for continuous casting |
| CN116748481B (en) * | 2023-06-21 | 2024-04-16 | 中国重型机械研究院股份公司 | Slab continuous casting knockout zone swing roller way with lifting function |
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