CN110369521B - Feeding and discharging rack for H-shaped steel special-shaped blanks - Google Patents

Feeding and discharging rack for H-shaped steel special-shaped blanks Download PDF

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Publication number
CN110369521B
CN110369521B CN201910703423.2A CN201910703423A CN110369521B CN 110369521 B CN110369521 B CN 110369521B CN 201910703423 A CN201910703423 A CN 201910703423A CN 110369521 B CN110369521 B CN 110369521B
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special
shaped
trolleys
billet
groups
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CN110369521A (en
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曹明辉
何家宝
罗华
周栋
魏子征
陈建
芦强
曹静
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Huatian Engineering and Technology Corp MCC
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Huatian Engineering and Technology Corp MCC
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/002—Piling, unpiling, unscrambling

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Special Conveying (AREA)

Abstract

The invention discloses a feeding and discharging rack for H-shaped steel special-shaped blanks. Mainly to H shaped steel access consuming time, inconvenient under the prior art, provide one kind and maintained the equipment that easily accesses H shaped steel beam blank of cushioning effect to rolling line or continuous casting, including conveying system, dolly assembly, tensioning system, transmission system, deposit the sign frame. The feeding and discharging steel pushing device is realized by using the working principle of a tumbler, and the storing and taking process is simplified.

Description

Feeding and discharging rack for H-shaped steel special-shaped blanks
Technical Field
The invention relates to a feeding and discharging rack for H-shaped steel special-shaped blanks, in particular to a feeding and discharging rack for special-shaped blanks for rolling H-shaped steel.
Background
Rolled H-section steel is typically rolled from an "H" -shaped blank that is cast by a continuous caster. When the rolling line is overhauled, the blank that conticaster production usually need cool off and deposit in raw materials storehouse, and when the conticaster overhauld, the blank that rolling line production needs need be taken out to the rolling line from raw materials storehouse, and the access process is consuming time, inconvenient whole, influences the production rhythm of rolling line.
Disclosure of Invention
Aiming at the problems, the invention provides the H-shaped steel special-shaped blank feeding and discharging rack which simplifies the special-shaped blank storing and taking process, does not influence the production rhythm of a rolling line and a continuous casting line and has a buffering effect on the production of the rolling line.
In order to achieve the aim, the invention discloses a feeding and discharging rack for H-shaped steel profiled bars, which comprises a conveying system, a trolley assembly, a tensioning system, a transmission system and a storage identification rack, wherein the conveying system is arranged on the trolley assembly; the conveying system consists of a plurality of rows of conveying systems which are arranged in parallel along the material flow direction, each row of conveying system comprises a conveying frame, an upper drag chain frame, a lower drag chain frame, supporting slide rails, rails and bases, the conveying frames are of symmetrical structures, the rails are symmetrically fixed in the conveying frames by the central line of a transmission chain, the supporting slide rails are symmetrically fixed on the conveying frames by the central line of the transmission chain, the upper drag chain frames are fixed in the conveying frames, the lower conveying frames are fixed on the bases, the bases are arranged in the conveying direction, the bases are fixed on a civil engineering foundation, the lower drag chain frames are fixed in three bases, and three groups of bases are connected in series;
the trolley assembly comprises a trolley frame, rail wheels and a tumbler head, wherein the rail wheels on two sides of the trolley frame are clamped in a rail fixed with the transport frame; the two groups of tumbler pushing heads are respectively hinged above the front side and the rear side of the running direction of the frame; the trolley freely reciprocates along the transportation direction under the action of the transmission system.
Furthermore, the transmission system comprises a driving chain wheel arranged in the middle of one side of each row of conveying frames close to the discharge end; each driving chain wheel is connected through a transmission shaft, and the transmission shaft is in transmission connection with the motor; the two ends of the chain are respectively fixed on the front side and the rear side of the corresponding frame, and the chain is meshed with the corresponding driving chain wheel and the tensioning chain wheel in the tensioning system to form a closed transmission ring chain;
the tensioning system is correspondingly arranged on the other side of each row of the conveying frames and comprises a tensioning frame, a tensioning chain wheel, a tensioning base and a pin shaft, wherein the tensioning frame is clamped in a sliding groove in the tensioning base on the civil engineering foundation, the pin shaft is fixed on the tensioning frame, and the tensioning chain wheel is fixed on the pin shaft.
Furthermore, the storage mark frames are symmetrically arranged by the central line of the H-shaped steel beam blank rack, a plurality of groups of storage mark frames are arranged along the transportation direction, and the plurality of groups of storage mark frames are collinear (along the material flow direction) and fixed on the civil engineering foundation.
Furthermore, the tumbler pushing head consists of a plurality of pushing plates hinged on the frame, and the weight below a hinged shaft of each pushing plate is greater than the weight above the hinged shaft; a baffle plate is arranged on the frame at one side of the lower end of the push plate close to the discharge end.
The feeding and discharging rack for the H-shaped steel irregular blank drives a driving chain wheel to rotate through a motor, the driving chain wheel drives a chain to drive the trolley to reciprocate, and the tumbler push head of the trolley pushes the irregular blank on a roller way or a slide rail to a specified position for storing and taking. The relative position of arranging of unloading rack and roll table is different on the H shaped steel dysmorphism base, can realize two kinds of functions: firstly, cold blank is fed to the roller way, and secondly, hot blank is fed to the sliding rail from the roller way.
No matter the material is fed to a roller way or the material is fed to a sliding rail, the material is pushed to a special-shaped blank by fixing the special-shaped blank on a trolley tumbler pushing head, and in order to better understand the steel pushing process of the trolley, the working principle of the tumbler pushing head is illustrated by taking cold blank feeding and steel pushing as an example (as shown in fig. 4). Because the tumbler is slightly top-heavy, the tumbler rotates clockwise around the hinged rotation center of the tumbler to reach a natural balance state, in order to realize that the tumbler pushes a special-shaped billet (steel pushing for short), the tumbler on the C side of the displacement frame is under the stopping action of the frame baffle A, so that the tumbler on the C side is in a vertical state, the tumbler on the D side of the displacement frame is under the stopping action of the frame baffle B, so that the tumbler on the D side is in a vertical state, and the tumbler in the vertical state pushes the steel by the stopping action of the baffle A, B. When the trolley moves rightwards and begins to contact a special-shaped blank at the position a of the sliding rail, the tumbler pushing head at the C side rotates anticlockwise around a hinge rotation center of the tumbler pushing head under the action of an external force of the special-shaped blank at the position a of the sliding rail, in the process of continuing moving rightwards, an outer contour curve A of the tumbler pushing head at the C side is always kept to be in contact with an outer contour curve B (different specifications and curves) of the special-shaped blank, the tumbler pushing head at the C side is always in a dynamic balance state, the tumbler pushing head at the C side moves rightwards and is separated from the special-shaped blank, and the tumbler pushing head at the C side is restored to a vertical state due to a self structure. In the whole process of rightward movement of the trolley, the working principle of contact and separation of the tumbler pushing head at the D side and the special-shaped blank at the sliding rail position b is the same as the working principle.
The induction plates assembled on the frame in the first row of the transportation system trigger four proximity switches (a position one proximity switch, a position two proximity switch, a position three proximity switch and a position four proximity switch) arranged on the transportation frame in the first row of the transportation system of the feeding and discharging rack of the H-shaped steel irregular blank to send electric control signals to control the starting and stopping of the motor in the feeding and discharging process of the cold and hot blank, so that the starting and stopping of the trolley are controlled. As shown in fig. 2, the positions of four groups of storage mark frames on the upper side of the central line of an H-shaped steel irregular blank rack are respectively collinear with the positions of a first proximity switch, a second proximity switch, a third proximity switch and a fourth proximity switch (along the material flow direction), taking cold blank feeding as an example, the whole steel pushing process sequence is shown in fig. 5, firstly, a lifting hook of a workshop raw material span lifts the irregular blanks to be sequentially stored in the positions of the four groups of storage mark frames (a first irregular blank mark position, a second irregular blank mark position, a third irregular blank mark position and a fourth irregular blank mark position), and the small cars in the four rows of transportation systems are simultaneously stopped at the second irregular blank mark position by controlling a second proximity switch of a sensing plate fixed on a frame in a first row of transportation system to send signals, wherein the positions are steel pushing starting positions; secondly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the special-shaped steel billet positioned at the first special-shaped billet identification position is pushed onto the conveying roller way by the tumbler pushing head positioned on the left side of the trolleys, the special-shaped steel billet positioned at the second special-shaped billet identification position is pushed onto the first special-shaped billet identification position by the tumbler pushing head positioned on the right side of the trolleys, and then the special-shaped billet positioned on the roller way is conveyed away by the conveying roller way; thirdly, the four groups of trolleys move rightwards, and signals are sent out through a position three proximity switch to control the trolleys to stop at a special-shaped blank identification position three; fourthly, the four groups of trolleys move leftwards, the start and stop of the trolleys are controlled by signals of a second proximity switch and a third proximity switch, and the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned at the third special-shaped billet identification position to the second special-shaped billet identification position; fifthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the special-shaped steel billet positioned at the first special-shaped billet identification position is pushed onto the conveying roller way by the tumbler pushing head positioned on the left side of the trolleys, the special-shaped steel billet positioned at the second special-shaped billet identification position is pushed onto the first special-shaped billet identification position by the tumbler pushing head positioned on the right side of the trolleys, and then the special-shaped billet positioned on the roller way is conveyed away by the conveying roller way; sixthly, the four groups of trolleys move rightwards, and the position of the trolley is controlled to be positioned at the fourth special-shaped blank identification position by sending a signal through a position four proximity switch; seventhly, the four groups of trolleys move leftwards, the trolleys are controlled to start and stop by controlling signals of the second position proximity switch and the fourth proximity switch, and the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel blanks positioned at the four positions of the special-shaped blank identification position to the second position of the special-shaped blank identification position; step eight, a lifting hook of a workshop raw material span lifts the special-shaped blanks to be sequentially stored at a special-shaped blank identification position three and a special-shaped blank identification position four, the special-shaped blank identification positions one, two, three and four store four groups of special-shaped blanks, the trolley stops at the special-shaped blank identification position two, and the state of the trolley and the special-shaped blanks returns to the state of the first step again; the steel-pushing complete process is repeatedly implemented. By adopting the mode, the time consumed by taking steel from the raw material warehouse is reduced, the production rhythm of a rolling line is met, and the method is more convenient and faster.
The structure of the rack is not required to be changed, firstly, the arrangement mode of the rack and the conveying roller ways is only required to be changed as shown in figure 6, and secondly, the hot blank blanking can be realized by arranging a position proximity switch five on the roller ways near the first row of conveying systems. The whole steel pushing process time sequence is shown in fig. 7, the four groups of trolleys move rightwards in the first step, the trolleys are controlled to stop at one side of the conveying roller way through signals of the five-position proximity switch, and at the moment, the trolleys are at a blanking steel pushing starting position and wait for a special-shaped blank sent out by a continuous casting machine to be conveyed to the conveying roller way; secondly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a position four proximity switch, a tumbler push head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned on the conveying roller way to a special-shaped billet identification position four, and meanwhile, the special-shaped billet sent out by the continuous casting machine is conveyed to the conveying roller way again; thirdly, the four groups of trolleys move rightwards, and the trolleys are controlled to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions; fourthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a control position I and a control position 2, the tumbler pushing head positioned on the left side of the trolleys pushes the special-shaped steel billets positioned at the four positions of the special-shaped billet identification position to a special-shaped billet identification position I, the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel billets positioned on the conveying roller way to a special-shaped billet identification position II, and meanwhile, the special-shaped billets sent out by the continuous casting machine are conveyed to the conveying roller way; fifthly, the four groups of trolleys move rightwards, and the trolleys are controlled to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions; sixthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a third proximity switch at a control position, a tumbler push head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned on the conveying roller way to a third special-shaped billet identification position, and meanwhile, the special-shaped billet sent out by the continuous casting machine is conveyed to the conveying roller way again; seventhly, moving the four groups of trolleys rightwards, and controlling the trolleys to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions; eighthly, four groups of trolleys are controlled to start and stop by signals of a fourth proximity switch and a fifth proximity switch, firstly the trolleys move leftwards, a tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped billets positioned on the conveying roller way to a special-shaped billet identification position four, meanwhile, the special-shaped billets sent out by the continuous casting machine are conveyed to the conveying roller way again, secondly the trolleys move rightwards to return to one side of the conveying roller way, and meanwhile, a lifting hook of a workshop raw material span sequentially lifts the special-shaped billets stored in the special-shaped billet identification positions I, II, III and IV and puts the special; and the complete process of steel pushing and steel storage is realized repeatedly. By adopting the mode, time is striven for the overhauling of rolling line accidents, the production rhythm of a continuous casting machine is met, and the cooling and storage efficiency of the special-shaped blank is improved.
Drawings
FIG. 1 is a front view of a feeding and discharging rack for H-shaped steel billets according to the invention;
FIG. 2 is a top view of the feeding and discharging stand for H-shaped steel billets according to the present invention;
FIG. 3 is a left side view of the feeding and discharging stand for H-beam blank according to the present invention;
FIG. 4 is a schematic diagram of the operation of the loading and unloading rack-tumbler head of the H-shaped steel beam blank of the present invention;
FIG. 5 is a timing flow chart of the feeding and discharging rack-cold billet feeding and pushing process of the H-shaped steel beam blank according to the present invention;
FIG. 6 is a layout view of feeding and discharging racks for H-shaped steel billets and hot billet blanking according to the present invention;
FIG. 7 is a flow chart of the timing sequence of the feeding and discharging rack-hot billet discharging and pushing process of the H-shaped steel beam blank.
Detailed Description
The invention is further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-7, the feeding and discharging rack for H-shaped steel billets of the present embodiment includes a conveying system, a trolley assembly, a tensioning system, a transmission system, and a storage rack 27.
The conveying system consists of 4 rows of conveying systems which are arranged in parallel along the material flow direction, the conveying systems are symmetrically arranged by the central line of the H-shaped steel beam blank rack, two rows are arranged on each side, the structural composition of each row of conveying systems is the same, the first row of transportation system is taken as an example to explain the constitution of the system and is shown in figure 1, comprising a transportation frame 2, an upper drag chain frame 4, a lower drag chain frame 5, a supporting slide rail 1, a track 3 and a base 15, wherein the transportation frame 2 is a symmetrical structure, the track 3 is symmetrically fixed in the transportation frame 2 by the central line of a transmission chain 16, the supporting slide rail 1 is symmetrically fixed on the transportation frame 2 by the central line of the transmission chain 16, the upper drag chain frame 4 is fixed in the transportation frame 2, the transport frame 2 is fixed on the base 15, three groups of the base 15 are arranged along the transport direction, the base 15 is fixed on a civil foundation, and the lower drag chain frame 5 is fixed in the three bases 15 to string the three groups of the bases 15 together.
The trolley assembly comprises a frame 8, rail wheels 7 and tumbler heads 6, wherein the E side of the frame 8 is connected with the two rail wheels, the F side of the frame 8 is connected with the two rail wheels 7, and the two groups of tumbler heads 6 are respectively hinged with ear holes above the C, D sides of the frame 8. The rail wheels 7 on both sides of the carriage 8E, F are clamped in the rails 3 fixed with the transport frame 2, and the carriage 8 can freely reciprocate along the transport direction under the drive of the transmission system. As shown in fig. 3 and 4, the tumbler-shaped pushing head 6 is composed of a plurality of pushing plates hinged on the frame, and the weight below the hinged shaft of the pushing plates is greater than the weight above the hinged shaft; a baffle plate is arranged on the frame at one side of the lower end of the push plate close to the discharge end.
The tensioning system comprises a tensioning frame 14, a tensioning chain wheel 11, a tensioning base 13 and a pin shaft 12, wherein the pin shaft 12 is fixed on the tensioning frame 14, the tensioning chain wheel 11 is fixed on the pin shaft 12, the tensioning frame 14 is clamped in a sliding groove in the tensioning base 13 and can freely move in the sliding groove, and the tensioning base is fixed on a civil engineering foundation.
Example 2
On the basis of the above embodiment, the transmission system includes a driving sprocket 10, a bearing seat 17, a bearing seat base 18, a first transmission shaft 19, a first coupler 20, a second transmission shaft 21, a second coupler 22, a speed reducer 23, a motor 24, a third coupler 25, a transmission base 26, and a chain 16. The drive sprocket 10 on the upper side of the central line of the H-shaped steel beam blank rack is assembled at two ends of a first transmission shaft 19, the first transmission shaft 19 is fixed on a bearing seat 17, and the bearing seat 17 is fixed on a bearing seat base 18. The drive sprocket 10 on the lower side of the center line of the H-shaped steel beam blank rack is assembled with two ends of a second transmission shaft 21, the second transmission shaft 21 below is fixed on a bearing seat 17, the bearing seat 17 is fixed on a bearing seat base 18, and four groups of the drive sprocket 10 and the bearing seat 17 are arranged along the material flow direction. The central lines of the four groups of driving sprockets 10 are coincided with the central lines of the corresponding tensioning sprockets 11, the upper drag chain frame 4 and the lower drag chain frame 5 in the four groups of transportation systems support the corresponding chains 16, two ends of each group of chains 16 are respectively fixed at two sides of the corresponding frame 8C, D, and each group of chains 16 is meshed with the corresponding driving sprockets 10 and the corresponding tensioning sprockets 11 to form a closed transmission loop chain. One end of the first transmission shaft 19, which is close to the center line of the H-shaped steel beam blank rack, is connected with one side of the first coupler 20, the other side of the first coupler 20 is connected with one end of the second transmission shaft 21, the other end of the second transmission shaft 21 is connected with one side of the second coupler 22, the other side of the second coupler 22 is connected with an output shaft of the speed reducer 23, an input shaft of the speed reducer 23 is connected with one side of the third coupler 25, the other side of the third coupler 25 is connected with an output shaft of the motor 24, the motor 24 and the speed reducer 23 are fixed on the transmission base 26, and the transmission base 26 is fixed on a civil engineering foundation.
On the basis of the above embodiment, the storage identification frames 27 are symmetrically arranged with the center line of the H-shaped steel beam blank rack, four groups are arranged along the transportation direction, and the four groups of storage identification frames 27 on the upper and lower sides of the center line of the H-shaped steel beam blank rack (along the material flow direction) are collinear and fixed on the civil engineering foundation.
As shown in fig. 5, in the cold billet feeding and steel pushing process, in the first step, a lifting hook of a workshop raw material span lifts the special-shaped billets to be sequentially stored in positions of four groups of storage identification frames (a special-shaped billet identification position I, a special-shaped billet identification position II, a special-shaped billet identification position III and a special-shaped billet identification position IV), and the trolleys in the four rows of transport systems are simultaneously stopped at the special-shaped billet identification position II by controlling a proximity switch of an induction plate trigger position II fixed on a frame in a first row of transport systems to send signals, wherein the position is a steel pushing starting position; secondly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the special-shaped steel billet positioned at the first special-shaped billet identification position is pushed onto the conveying roller way by the tumbler pushing head positioned on the left side of the trolleys, the special-shaped steel billet positioned at the second special-shaped billet identification position is pushed onto the first special-shaped billet identification position by the tumbler pushing head positioned on the right side of the trolleys, and then the special-shaped billet positioned on the roller way is conveyed away by the conveying roller way; thirdly, the four groups of trolleys move rightwards, and signals are sent out through a position three proximity switch to control the trolleys to stop at a special-shaped blank identification position three; fourthly, the four groups of trolleys move leftwards, the start and stop of the trolleys are controlled by signals of a second proximity switch and a third proximity switch, and the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned at the third special-shaped billet identification position to the second special-shaped billet identification position; fifthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the special-shaped steel billet positioned at the first special-shaped billet identification position is pushed onto the conveying roller way by the tumbler pushing head positioned on the left side of the trolleys, the special-shaped steel billet positioned at the second special-shaped billet identification position is pushed onto the first special-shaped billet identification position by the tumbler pushing head positioned on the right side of the trolleys, and then the special-shaped billet positioned on the roller way is conveyed away by the conveying roller way; sixthly, the four groups of trolleys move rightwards, and the position of the trolley is controlled to be positioned at the fourth special-shaped blank identification position by sending a signal through a position four proximity switch; seventhly, the four groups of trolleys move leftwards, the trolleys are controlled to start and stop by controlling signals of the second position proximity switch and the fourth proximity switch, and the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel blanks positioned at the four positions of the special-shaped blank identification position to the second position of the special-shaped blank identification position; step eight, a lifting hook of a workshop raw material span lifts the special-shaped blanks to be sequentially stored at a special-shaped blank identification position three and a special-shaped blank identification position four, the special-shaped blank identification positions one, two, three and four store four groups of special-shaped blanks, the trolley stops at the special-shaped blank identification position two, and the state of the trolley and the special-shaped blanks returns to the state of the first step again; the steel-pushing complete process is repeatedly implemented.
Example 3
The hot blank blanking and steel pushing process is as shown in fig. 7, in the first step, four groups of trolleys move rightwards, the trolley is controlled to stop at one side of a conveying roller way through signals of a five-position proximity switch, and at the moment, the trolley is at a blanking and steel pushing starting position and waits for a special-shaped blank sent out by a continuous casting machine to be conveyed to the conveying roller way; secondly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a position four proximity switch, a tumbler push head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned on the conveying roller way to a special-shaped billet identification position four, and meanwhile, the special-shaped billet sent out by the continuous casting machine is conveyed to the conveying roller way again; thirdly, the four groups of trolleys move rightwards, and the trolleys are controlled to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions; fourthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the tumbler pushing head positioned on the left side of the trolleys pushes the special-shaped steel billets positioned at the four positions of the special-shaped billet identification positions to the first special-shaped billet identification position, the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel billets positioned on the conveying roller way to the second special-shaped billet identification position, and meanwhile, the special-shaped billets sent out by the continuous casting machine are conveyed to the conveying roller way; fifthly, the four groups of trolleys move rightwards, and the trolleys are controlled to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions; sixthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a third proximity switch at a control position, a tumbler push head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned on the conveying roller way to a third special-shaped billet identification position, and meanwhile, the special-shaped billet sent out by the continuous casting machine is conveyed to the conveying roller way again; seventhly, moving the four groups of trolleys rightwards, and controlling the trolleys to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions; eighthly, four groups of trolleys are controlled to start and stop by signals of a fourth proximity switch and a fifth proximity switch, firstly the trolleys move leftwards, a tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped billets positioned on the conveying roller way to a special-shaped billet identification position four, meanwhile, the special-shaped billets sent out by the continuous casting machine are conveyed to the conveying roller way again, secondly the trolleys move rightwards to return to one side of the conveying roller way, and meanwhile, a lifting hook of a workshop raw material span sequentially lifts the special-shaped billets stored in the special-shaped billet identification positions I, II, III and IV and puts the special; and the complete process of steel pushing and steel storage is realized repeatedly.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims (1)

1. A feeding and discharging rack for H-shaped steel beam blanks comprises a conveying system, a trolley assembly, a tensioning system, a transmission system and a storage identification rack;
the conveying system consists of a plurality of rows of conveying systems which are arranged in parallel along the material flow direction, each row of conveying system comprises a conveying frame, an upper drag chain frame, a lower drag chain frame, supporting slide rails, rails and bases, the conveying frames are of symmetrical structures, the rails are symmetrically fixed in the conveying frames by the central line of a transmission chain, the supporting slide rails are symmetrically fixed on the conveying frames by the central line of the transmission chain, the upper drag chain frames are fixed in the conveying frames, the lower conveying frames are fixed on the bases, the bases are arranged in the conveying direction, the bases are fixed on a civil engineering foundation, the lower drag chain frames are fixed in three bases, and three groups of bases are connected in series;
the trolley assembly comprises a trolley frame, rail wheels and a tumbler head, wherein the rail wheels on two sides of the trolley frame are clamped in a rail fixed with the transport frame; the two groups of tumbler pushing heads are respectively hinged above the front side and the rear side of the running direction of the frame; the trolley freely reciprocates along the transportation direction under the action of the transmission system;
the transmission system comprises a driving chain wheel arranged in the middle of one side of each row of conveying frames close to the discharge end; each driving chain wheel is connected through a transmission shaft, and the transmission shaft is in transmission connection with the motor; the two ends of the chain are respectively fixed on the front side and the rear side of the corresponding frame, and the chain is meshed with the corresponding driving chain wheel and the tensioning chain wheel in the tensioning system to form a closed transmission ring chain;
the tensioning system is correspondingly arranged on the other side of each row of the conveying frames and comprises a tensioning frame, a tensioning chain wheel, a tensioning base and a pin shaft, wherein the tensioning frame is clamped in a sliding groove in the tensioning base on the civil engineering foundation, the pin shaft is fixed on the tensioning frame, and the tensioning chain wheel is fixed on the pin shaft;
the storage identification frames are symmetrically arranged along the central line of the H-shaped steel special blank rack, a plurality of groups of storage identification frames are arranged along the transportation direction, and the plurality of groups of storage identification frames are collinear along the material flow direction and are fixed on a civil engineering foundation;
the tumbler pushing head consists of a plurality of pushing plates hinged on the frame, and the weight below a hinged shaft of each pushing plate is greater than the weight above the hinged shaft; a baffle plate is arranged on the frame at one side of the lower end of the push plate close to the discharge end;
wherein, the cold billet feeding and steel pushing process:
firstly, a lifting hook of a workshop raw material span lifts the special-shaped blanks and sequentially stores the special-shaped blanks in the positions of four groups of storage identification frames: a first special-shaped blank identification position, a second special-shaped blank identification position, a third special-shaped blank identification position and a fourth special-shaped blank identification position, wherein a proximity switch of a second induction plate trigger position fixed on a frame in a first row of transportation system is controlled to send a signal, so that a small vehicle in the four rows of transportation systems is stopped at the second special-shaped blank identification position at the same time, and the position is a steel pushing starting position;
secondly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the special-shaped steel billet positioned at the first special-shaped billet identification position is pushed onto the conveying roller way by the tumbler pushing head positioned on the left side of the trolleys, the special-shaped steel billet positioned at the second special-shaped billet identification position is pushed onto the first special-shaped billet identification position by the tumbler pushing head positioned on the right side of the trolleys, and then the special-shaped billet positioned on the roller way is conveyed away by the conveying roller way;
thirdly, the four groups of trolleys move rightwards, and signals are sent out through a position three proximity switch to control the trolleys to stop at a special-shaped blank identification position three;
fourthly, the four groups of trolleys move leftwards, the start and stop of the trolleys are controlled by signals of a second proximity switch and a third proximity switch, and the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned at the third special-shaped billet identification position to the second special-shaped billet identification position;
fifthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the special-shaped steel billet positioned at the first special-shaped billet identification position is pushed onto the conveying roller way by the tumbler pushing head positioned on the left side of the trolleys, the special-shaped steel billet positioned at the second special-shaped billet identification position is pushed onto the first special-shaped billet identification position by the tumbler pushing head positioned on the right side of the trolleys, and then the special-shaped billet positioned on the roller way is conveyed away by the conveying roller way;
sixthly, the four groups of trolleys move rightwards, and the position of the trolley is controlled to be positioned at the fourth special-shaped blank identification position by sending a signal through a position four proximity switch;
seventhly, the four groups of trolleys move leftwards, the trolleys are controlled to start and stop by controlling signals of the second position proximity switch and the fourth proximity switch, and the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel blanks positioned at the four positions of the special-shaped blank identification position to the second position of the special-shaped blank identification position;
step eight, a lifting hook of a workshop raw material span lifts the special-shaped blanks to be sequentially stored at a special-shaped blank identification position three and a special-shaped blank identification position four, the special-shaped blank identification positions one, two, three and four store four groups of special-shaped blanks, the trolley stops at the special-shaped blank identification position two, and the state of the trolley and the special-shaped blanks returns to the state of the first step again; the steel-pushing complete process is repeatedly implemented;
the blanking and steel pushing process of the hot blank:
the first step, the four groups of trolleys move rightwards, the trolleys are controlled to stop at one side of the conveying roller bed through signals of a five-position proximity switch, and at the moment, the trolleys are at a blanking and steel pushing starting position to wait for conveying a special-shaped blank sent out by a continuous casting machine to the conveying roller bed;
secondly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a position four proximity switch, a tumbler push head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned on the conveying roller way to a special-shaped billet identification position four, and meanwhile, the special-shaped billet sent out by the continuous casting machine is conveyed to the conveying roller way again;
thirdly, the four groups of trolleys move rightwards, and the trolleys are controlled to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions;
fourthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a first control position and a second control position, the tumbler pushing head positioned on the left side of the trolleys pushes the special-shaped steel billets positioned at the four positions of the special-shaped billet identification positions to the first special-shaped billet identification position, the tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped steel billets positioned on the conveying roller way to the second special-shaped billet identification position, and meanwhile, the special-shaped billets sent out by the continuous casting machine are conveyed to the conveying roller way;
fifthly, the four groups of trolleys move rightwards, and the trolleys are controlled to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions;
sixthly, the four groups of trolleys move leftwards, the opening and the closing of the trolleys are controlled by signals of a third proximity switch at a control position, a tumbler push head positioned on the right side of the trolleys pushes the special-shaped steel billet positioned on the conveying roller way to a third special-shaped billet identification position, and meanwhile, the special-shaped billet sent out by the continuous casting machine is conveyed to the conveying roller way again;
seventhly, moving the four groups of trolleys rightwards, and controlling the trolleys to stop at one side of the conveying roller bed through signals of the five proximity switches at the control positions;
eighthly, four groups of trolleys are controlled to start and stop by signals of a fourth proximity switch and a fifth proximity switch, firstly the trolleys move leftwards, a tumbler pushing head positioned on the right side of the trolleys pushes the special-shaped billets positioned on the conveying roller way to a special-shaped billet identification position four, meanwhile, the special-shaped billets sent out by the continuous casting machine are conveyed to the conveying roller way again, secondly the trolleys move rightwards to return to one side of the conveying roller way, and meanwhile, a lifting hook of a workshop raw material span sequentially lifts the special-shaped billets stored in the special-shaped billet identification positions I, II, III and IV and puts the special; and the complete process of steel pushing and steel storage is realized repeatedly.
CN201910703423.2A 2019-07-31 2019-07-31 Feeding and discharging rack for H-shaped steel special-shaped blanks Active CN110369521B (en)

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Publication number Priority date Publication date Assignee Title
CN103010759B (en) * 2011-09-26 2015-09-09 中冶东方工程技术有限公司 A kind of structural steel stocking device
CN203061569U (en) * 2013-02-04 2013-07-17 中冶东方工程技术有限公司 Steel billet charging rack
CN105689412A (en) * 2014-11-26 2016-06-22 天津通用科技有限公司 Feeding device with automatic charging function
CN204661790U (en) * 2015-05-29 2015-09-23 武钢集团昆明钢铁股份有限公司 One effectively can be corrected steel billet and to be dispelled the heat the hot cog transferring device of diastrophic steel billet
KR101966372B1 (en) * 2017-07-27 2019-04-05 주식회사 포스코 An apparatus for transfer car and an apparatus for steel sheet lifting including the same

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