CN102225431B - Steel rolling system provided with no-twist interchange type rolling piece guiding device - Google Patents
Steel rolling system provided with no-twist interchange type rolling piece guiding device Download PDFInfo
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- CN102225431B CN102225431B CN2011100886220A CN201110088622A CN102225431B CN 102225431 B CN102225431 B CN 102225431B CN 2011100886220 A CN2011100886220 A CN 2011100886220A CN 201110088622 A CN201110088622 A CN 201110088622A CN 102225431 B CN102225431 B CN 102225431B
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Abstract
The invention discloses a steel rolling system provided with a no-twist interchange type rolling piece guiding device, and is characterized in that a second rolling mil counting backwards in a finish rolling region is a horizontal rolling mill, a sliding type outlet guiding device is arranged on the last but one rolling mill, a movable looping device is arranged at a rolling piece outlet end of the sliding type outlet guiding device, a no-twist interchange type rolling piece guiding device used for changing a row of horizontally-arranged rolling pieces into a vertically-arranged row is arranged at the rolling piece outlet end of the movable looping device, and a last rolling mill provided with an inlet guiding device is arranged at the rolling piece outlet end of the no-twist interchange type rolling piece guiding device, and is of a vertical rolling mill. The invention is applicable to rolling a steel production line, and has the advantages of being capable of omitting a twist guiding device, removing one fault point of the steel rolling process, smoothly realizing changing of the single-line rolling mode of a rolling system into a segmentation rolling mode, reducing the cost of the steel rolling system, being applicable to 4-slitting-segmentation, 5-slitting-segmentation and 6-slitting-segmentation steel rolling systems, and the like.
Description
Technical field
The present invention relates to a kind of rolling system, especially a kind of being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device.
Background technology
At present, in the cutting production technology of round steel with ribbing (being screw-thread steel), two segmentation technique and three segmentation technique develop the earliest, and technology is ripe already.The time that four segmentation technique and five segmentation technique occur is later relatively, but through each was about the continuous exploration tackling key problem of R&D institution and manufacturer in recent years, technology is also perfect relatively.In the rolling system of round steel with ribbing, comprise the roughing district, in roll district and finish rolling district, each rolls the district and is provided with 6 milling trains, every milling train is provided with inlet guide and guards and outlet guide device.The roughing district with in roll in the district, all take the interlaced mode of horizontal mill and vertical mill that milling train is set.The roughing district with in roll last milling train in district after, be equipped with flying shear equipment.In the finish rolling district, when rolling large-size rolled piece (referring generally to the rolled piece of φ more than 25), need to adopt the mode of one-strand roller.When adopting the mode of one-strand roller, the arrangement of 6 milling trains in finish rolling district and roughing district with in roll and distinguish consistently, be milling train to be set with horizontal mill and the interlaced mode of vertical mill, promptly arrange each milling train with the mode of " Ping-Li-Ping-Li-Ping-Li ".In the finish rolling district, be equipped with looper between two adjacent milling trains.The function of looper is: when heap steel phenomenon occurring; Send parameter instruction through the far infrared induction installation to the master station microsystem; The master station microsystem can recalculate a rational motor speed parameter automatically and give motor device; Thereby realize the real-time adjustment of rolling system, guarantee the trouble-free operation of rolling system, avoid occurring piling the generation of steel, stifled steel incident.When the less rolled piece of rolling specs (referring generally to the rolled piece of φ below 25); For improving rolling efficiency, adopt the mode (present technology has cutting technologies such as 25 liang of cuttings of φ, φ 20 3 cuttings, φ 14 4 cuttings, φ 12 5 cuttings, φ 8 six cuttings) of splitting rolling; When adopting the mode of splitting rolling, last milling train (K1) and third from the bottom the milling train (K3) in finish rolling district all need convert horizontal mill into from vertical mill, and the distribution mode of milling train becomes " Ping-Li-Ping-Ping-Ping-Ping ".
In the prior art; When rolling system from the one-strand roller mode when the splitting rolling mode is changed; Last milling train (K1) and third from the bottom milling train (K3) for the finish rolling district; The general gear track device that adopts converts vertical mill into horizontal mill, and this milling train of equalling upright mutual commentaries on classics form makes the horizontal mill of its cost simple function and the price of vertical mill will exceed more than one times owing to the gear track device need be set.When adopting this milling train of equalling upright mutual commentaries on classics form; Because second from the bottom milling train (K2) is horizontal mill with last milling train (K1); Need after the oval rolled piece half-twist after second from the bottom the milling train processing, the import guide and guards through looper and last milling train imports last milling train (K1) with postrotational rolled piece again.Thereby outlet guide device that need second from the bottom milling train is set to can rolled piece to be rotated 90 ° the guide and guards that reverses.
In the prior art, an independent elliptical rolled piece being reversed 90 ° accomplishes easily.But present existing equipment is difficult to many elliptical rolled pieces are reversed 90 ° simultaneously accurately in moment.In the twist process of rolled piece, as long as wherein there is the windup-degree of one or two rolled piece error to occur, rolling accident will appear, influence the normal operation of whole process flow.In two cuttings, three cutting production systems, generally adopt one group be in parallel installed with reverse guide and guard, reverse each rolled piece respectively because the rolled piece number is few, each rolled piece reverse than be easier to realization synchronously.For four cuttings, five cutting production systems, generally also be adopt one group be in parallel installed with reverse guide and guard, but because the rolled piece number is more, the adjustment of respectively reversing guide and guards is required just very high, the adjustment difficulty is big.Several guide and guards that reverse of parallel connection are in practical work process, and windup-degree always has difference, can not be in full accord; The uniformity of each windup-degree is poor; The smooth finished product hole that got into that often causes the elliptical rolled piece of several synchronous operations to have, have since the angle of reversing be greater than or less than 90 ° and when getting into the finished product hole malposition, the circular hole of inclined entering finished product frame; Rolling accident occurs, shut out waste product.Promptly enable to adjust the uniformity that each reverses guide and guards, its angle of reversing can receive the interference of multiple factor but rolled piece is in operation, and this uniformity also is difficult to keep stability preferably.For six slit rolling process of up-to-date exploitation, the asynchronous unstability of reversing is just more outstanding, makes the advantage of high-yield and high-efficiency of six cutting technologies be difficult to give full play to, and has restricted the development of six slit rolling process.
Summary of the invention
The present invention is the weak point that exists in the above-mentioned prior art for avoiding, and provides a kind of being provided with not have the rolling system of turning round grade separation type rolled piece guiding device, a plurality of rolled pieces are reversed simultaneously and the windup-degree unanimity, improves the operating efficiency of rolling system.
The present invention adopts following technical scheme for the technical solution problem.
Be provided with and do not have the rolling system of turning round grade separation type rolled piece guiding device; Second from the bottom the milling train in finish rolling district is horizontal mill; Its design feature is; The outlet guide device of said second from the bottom milling train is set to slidingtype outlet guide device, and the rolled piece port of export of said slidingtype outlet guide device is provided with looper, and the rolled piece port of export of said looper is provided with the nothing that is used for the rolled piece that a row of horizontal is arranged is converted into the state that vertically forms a line and turns round grade separation type rolled piece guiding device; The rolled piece port of export that said nothing is turned round grade separation type rolled piece guiding device is provided with last milling train that has the guide and guards that enters the mouth, and said last milling train is a vertical mill.
The design feature of not having the rolling system of turning round grade separation type rolled piece guiding device that is provided with of the present invention also is:
Said nothing is turned round grade separation type rolled piece guiding device and is included pedestal, and the pedestal top is set with support, and support is provided with vertical gripper shoe, and gripper shoe is provided with a plurality of through holes that extend along the thickness direction of said gripper shoe; Said a plurality of through hole is provided with the mode that axis favours the thickness direction of said gripper shoe respectively; Be provided with a guiding tube within each through hole: the length of each guiding tube has nothing in common with each other; Make being centered close on same the horizontal line of port cross section of first end of each guiding tube, being centered close on same the vertical curve of the port cross section of second end of each guiding tube.
Said gripper shoe comprises two risers that are parallel to each other.
Port as the rolled piece arrival end on the said guiding tube is tubaeform mouthful.
Adopt bolt, nuts and washers said support to be anchored on the top of said pedestal.
Be respectively equipped with an annular groove in said gripper shoe both sides on the outer peripheral face of said guiding tube, the anchor ring and the gripper shoe lateral surface near gripper shoe one side of said annular groove are positioned on the same plane; Be provided with in the said annular groove and be used for guiding tube is fixed in the snap ring on the said gripper shoe.
Said snap ring be circumferentially with fracture.
The both sides of said gripper shoe are provided with the ribs that is used for fastening said gripper shoe.
The inlet guide and guards of said last milling train is a roller inlet guide and guards.
Compared with present technology, beneficial effect of the present invention is embodied in:
Rolling system of the present invention; Second from the bottom the milling train outlet guide device in finish rolling district is set to slidingtype outlet guide device; The rolled piece port of export of looper is provided with the nothing that is used for the rolled piece that a row of horizontal is arranged is converted into the state that vertically forms a line and turns round grade separation type rolled piece guiding device, does not have the rolled piece port of export of turning round grade separation type rolled piece guiding device and is provided with vertical mill.Turn round grade separation type rolled piece guiding device owing to be provided with not have, thereby to need not second from the bottom milling train outlet guide device and be set to reverse guide and guards, only to need to adopt conventional slidingtype outlet guide device to get final product; Last milling train (K1) need not to be arranged to put down the milling train of upright mutual commentaries on classics form; Being set to vertical mill gets final product; The unification of last rolling mill when having realized single line and splitting rolling; Also can realize rolling system smoothly from of the conversion of one-strand roller mode, avoid the use of the higher milling train of equalling upright mutual commentaries on classics form of cost, reduce the cost of rolling system to the splitting rolling mode.Owing to saved and reversed guide and guards; Solved to use when reversing guide and guards and the inconsistent problem of windup-degree between a plurality of rolled pieces can occur; Eliminate a trouble point of rolling system, can guarantee the yield rate of rolling system better, thereby improved production efficiency for steel rolling manufacturing enterprise.
The support that does not have on the pedestal of turning round grade separation type rolled piece guiding device is provided with vertical gripper shoe, is provided with guiding tube in the through hole on the gripper shoe.The axis of different through holes is with respect to the gripper shoe thickness direction; The direction that tilts and the angle of inclination have nothing in common with each other; Make the port of each guiding tube first end be positioned on the same horizontal level horizontally, and the port of second end of each guiding tube is positioned at same vertical position and vertically arrange.Therefore; Can make and a plurality ofly be in rolled piece horizontal on the same horizontal line and get into different guiding tubes respectively; And these rolled pieces are when coming out from guiding tube, and each rolled piece is on same the vertical curve, is the state that in the vertical direction forms a line after rolled piece comes out.Adopt two parallel risers as gripper shoe, but economical with materials, and the while can keep the strength and stiffness of gripper shoe, has reduced device in manufacturing cost.Because the port of rolled piece arrival end is set to tubaeform mouthful; Be convenient to the entering of rolled piece; Even if some locational fluctuations are arranged after rolled piece comes out, can guarantee that also rolled piece successfully gets into the rolled piece arrival end on the guiding tube, makes rolling system move swimmingly from looper.Adopt bolt, nuts and washers that said support is anchored on the top of said pedestal, be convenient to the dismounting and the maintenance and repair of device.Through in the gripper shoe both sides snap ring being set, snap ring is embedded in the annular groove on the guiding tube, can guiding tube be fixed on the gripper shoe tightly, avoids guiding tube to go here and there in the axial direction and influences the motion of rolled piece.When needing to change guiding tube, snap ring is pulled down through the fracture position of snap ring, promptly replaceable guiding tube, convenient and swift.Through ribs is set, can gripper shoe be fixed on the support tightly.The inlet guide and guards of vertical mill is a roller inlet guide and guards; Can make that when rolled piece slipped over, deflector roll can rotate along with the motion of rolled piece when rolled piece got into guide and guards on the deflector roll of guide and guards; Avoid the rolled piece surface to be damaged, improve the yield rate of shaped steel by scraping.
Rolling system of the present invention; Can save and reverse guide and guards; Eliminated a trouble point of rolling system, can realize smoothly that rolling system from the conversion of one-strand roller mode to the splitting rolling mode, has reduced the cost of rolling system; Can be adapted to four cuttings, five cuttings and six cutting rolling systems, also have the advantages such as smooth and easy operation that low cost of manufacture, dismounting and maintenance and repair are convenient and swift, can guarantee rolling system simultaneously.
Description of drawings
Fig. 1 is the structural representation of rolling system of the present invention.
Fig. 2 is the structure diagram of last two milling trains of rolling system of the present invention.
Fig. 3 turns round the front view of grade separation type rolled piece guiding device for the nothing of rolling system of the present invention.
Fig. 4 turns round the left view of grade separation type rolled piece guiding device for the nothing of rolling system of the present invention.
Fig. 5 turns round the vertical view of grade separation type rolled piece guiding device for the nothing of rolling system of the present invention.
Label among Fig. 1～Fig. 5: 1 pedestal, 2 supports, 3 gripper shoes, 31 risers; 4 guiding tubes, 5 bolts, 6 nuts, 7 packing rings; 8 snap rings, 9 ribs, 10 second from the bottom milling trains, 11 slidingtype outlet guide devices; 12 loopers, 13 nothings are turned round grade separation type rolled piece guiding device, 14 rollers inlet guide and guards, 15 last milling trains.
Below pass through the specific embodiment, and combine accompanying drawing that the present invention is described further.
The specific embodiment
Among Fig. 1, the direction of said arrow is the direction of motion of rolled piece.Be equipped with looper between per two adjacent milling trains in finish rolling district, the part looper is not shown in the drawings.K1～K18 representes milling train among Fig. 1, begins with workpiece motion s direction in scheming, and first rolling mill is expressed as K18, and second rolling mill is expressed as K17 ..., rolling mill 10 second from the bottom is expressed as K2, and last rolling mill 15 is expressed as K1; Wherein H representes that this rolling mill is a horizontal mill, and V representes that this rolling mill is a vertical mill, and H/V representes that this rolling mill is for putting down the milling train of upright mutual commentaries on classics form.The direction of arrow A is the direction of motion of rolled piece among Fig. 2.
Referring to Fig. 1～Fig. 5, being provided with does not have the rolling system of turning round grade separation type rolled piece guiding device, and second from the bottom the milling train 10 in finish rolling district is horizontal mill.The outlet guide device of said second from the bottom milling train 10 is set to slidingtype outlet guide device 11; The rolled piece port of export of said slidingtype outlet guide device is provided with looper 12; The rolled piece port of export of said looper 12 is provided with the nothing that is used for the rolled piece that a row of horizontal is arranged is converted into the state that vertically forms a line and turns round grade separation type rolled piece guiding device 13; The rolled piece port of export that said nothing is turned round grade separation type rolled piece guiding device 13 is provided with last milling train 15 that has the guide and guards that enters the mouth, and said last milling train 15 is a vertical mill.This vertical mill is last milling train 15 in finish rolling district, also is last milling train of whole rolling system, i.e. finished product milling train, and the product that shuts out is a final finished.Turn round grade separation type rolled piece guiding device 13 through being provided with not have, the rolled piece that a row of horizontal is arranged is converted into the state that vertically forms a line, and gets into last milling train 15 then, and last milling train 15 is set to vertical mill can accomplish the operation of rolling.Saved and reversed guide and guards; Last milling train also is fixed as vertical mill; Rolling system when the splitting rolling mode is changed, owing to last milling train in two kinds of rolling modes is vertical mill, need not to consider the flat upright mutual commentaries on classics problem of last milling train from the one-strand roller mode; Avoid the use of the higher milling train of equalling upright mutual commentaries on classics form of cost, reduced the cost of rolling system; Reverse guide and guards owing to saving simultaneously; Solved to use when reversing guide and guards and the inconsistent problem of windup-degree between a plurality of rolled pieces can occur; Eliminate a trouble point of rolling system, can guarantee the yield rate of rolling system better, thereby improved production efficiency for steel rolling manufacturing enterprise.Rolling system of the present invention; Solved the problem that rolled piece in the rolling system of many cuttings reverses inconsistency; Broken through and used the technology barrier when reversing guide and guards, be many slit rolling process, especially the development of six slit rolling process; Good technical basis is provided, has made the advantage of high-yield and high-efficiency of six cutting technologies be able to give full play to.
Said nothing is turned round grade separation type rolled piece guiding device and is included pedestal 1, and pedestal 1 top is set with support 2, and support 2 is provided with vertical gripper shoe 3, and gripper shoe 3 is provided with a plurality of through holes that extend along the thickness direction of said gripper shoe 3; Said a plurality of through hole is provided with the mode that axis favours the thickness direction of said gripper shoe 3 respectively; Be provided with a guiding tube 4 within each through hole: the length of each guiding tube 4 has nothing in common with each other; Make being centered close on same the horizontal line of port cross section of first end of each guiding tube 4, being centered close on same the vertical curve of the port cross section of second end of each guiding tube 4.The axis of different through holes is with respect to gripper shoe 3 thickness directions; The direction that tilts and the angle of inclination have nothing in common with each other; Thereby make the mode that is mutual antarafacial between the axis of each through hole be provided with; The length that adds each guiding tube 4 again also has nothing in common with each other, thereby makes the port of each guiding tube 4 first ends be positioned on the same horizontal level horizontally, and the port of second end of each guiding tube 4 is positioned at same vertical position and vertically arranges.Because the port of guiding tube 4 one ends is positioned on the same horizontal level; And other end port is positioned at same vertical position; Therefore can make and a plurality ofly be in rolled piece horizontal on the same horizontal line and get into different guiding tube 4 respectively; And these rolled pieces are when coming out from guiding tube 4, and each rolled piece is on same the vertical curve, is the state that in the vertical direction forms a line after rolled piece comes out.
Said gripper shoe 3 comprises two risers that are parallel to each other 31.Adopt two parallel risers 31 as gripper shoe, can save the part between the gripper shoe, can keep the strength and stiffness of gripper shoe in the time of economical with materials, reduced device in manufacturing cost.Port as the rolled piece arrival end on the said guiding tube 4 is tubaeform mouthful.Said rolled piece arrival end is the entry port of rolled piece, and looper is provided with the rolled piece outlet that number equates with guiding tube 4 numbers, and the rolled piece outlet on the looper is corresponding one by one the setting with the rolled piece arrival end on the guiding tube 4.After rolled piece with certain initial velocity comes out from looper; Rolled piece arrival end from guiding tube 4 gets into guiding tube 4; The rolled piece outlet from guiding tube 4 other ends then skids off guiding tube 4, gets into the inlet guide and guards of next milling train, carries out the rolling of next step.Because the port of rolled piece arrival end is set to tubaeform mouthful; Be convenient to the entering of rolled piece; Even if some locational fluctuations are arranged after rolled piece comes out, can guarantee that also rolled piece successfully gets into the rolled piece arrival end on the guiding tube, makes rolling system move swimmingly from looper.
Adopt bolt 5, nut 6 and packing ring 7 that said support 2 is anchored on the top of said pedestal 1, be convenient to the dismounting and the maintenance and repair of device.Be respectively equipped with an annular groove in said gripper shoe 3 both sides on the outer peripheral face of said guiding tube 4, the anchor ring and gripper shoe 3 lateral surfaces near gripper shoe one side of said annular groove are positioned on the same plane; Be provided with in the said annular groove and be used for guiding tube 4 is fixed in the snap ring 8 on the said gripper shoe 3.Through in gripper shoe 3 both sides snap ring 8 being set, snap ring 8 is embedded in the annular groove on the guiding tube 4, can guiding tube 4 be fixed on the gripper shoe 3 tightly, avoids guiding tube to go here and there in the axial direction and influences the motion of rolled piece.
Said snap ring 8 be circumferentially with fracture.Groove position with on the said fracture alignment guidance pipe 4 is embedded in snap ring 8 in the annular groove on the guiding tube 4, and snap ring 8 promptly is sheathed on the guiding tube 4.When needing to change guiding tube, snap ring is pulled down promptly replaceable guiding tube through the fracture position.The both sides of said gripper shoe 3 are provided with the ribs 9 that is used for fastening said gripper shoe 3.Through ribs 9 is set, can gripper shoe 3 be fixed on the support 2 tightly.
The inlet guide and guards of said last milling train 15 is a roller inlet guide and guards 14.Adopt roller inlet guide and guards 14, can make when rolled piece gets into guide and guards, when rolled piece slipped on the deflector roll of roller inlet guide and guards, deflector roll can rotate along with the motion of rolled piece, avoided the rolled piece surface to be damaged by scraping, improved the yield rate of shaped steel.
Before rolling, elder generation lifts this steel billet and is heated in the heating furnace about 1050 ℃, through step-by-step movement conveyer in the heating furnace steel billet of red heat state is seen off on fire door to the charging roller table face then; Charging roller table is arranged in parallel by the cylindric roller of a row and constitutes, and each roller all has motor-driven, moves forward thereby drive steel billet; Until getting into the roughing district, get into the first rolling mill k18, get into the 2nd, 3,4,5,6 rolling mills then one by one; After coming out from the 6th rolling mill; Because steel billet head zone temperature descends fast, cracking, the phenomenon of blooming can appear, can cause the steel accident occurring blocking up in rolling follow-up.Therefore between the 6th and the 7th rolling mill, can set up a flying shear equipment (generally being the 1# flying shear), the blade up and down of flying shear can be chopped steel toe off in the moment in the steel motion process and fall in the trench, thereby regains nose shape in good condition.In roll in the district, the situation of the situation of the 7th～12 rolling mill and the 1st～6 rolling mill is basic identical, and a flying shear equipment (generally being the 2# flying shear) is also arranged behind the 12nd rolling mill.After getting into the finish rolling district, if one-strand roller then adopts the milling train of the same horizontally and vertically alternative of before to arrange; If carry out splitting rolling, then need convert the 16th rolling mill that is the rolling on edge state originally into level through the gear track device.The 18th rolling mill of the prior art is the same with the 16th rolling mill, all is the milling trains that can equal upright mutual commentaries on classics form.In the present invention, the 18th rolling mill just need not the milling train of equalling upright mutual commentaries on classics form that adopts price comparatively expensive owing to adopted vertical mill.
As shown in Figure 2, nothing of the present invention is turned round grade separation type rolled piece guiding device 13 and is positioned over after the looper 12, is second from the bottom milling train 10 (for flat milling train) before the looper, and nothing is vertical mill 15 after turning round grade separation type rolled piece guiding device 13.After rolled piece comes out from second from the bottom milling train 10; Each rolled piece is on the same horizontal line and is arranged in a row; Get into looper 12 then; A plurality of rolled piece arrival ends that a plurality of rolled piece outlets of looper 11 and nothing of the present invention are turned round grade separation type rolled piece guiding device 12 are corresponding one by one to be provided with; Rolled piece gets into nothing of the present invention with certain initial velocity and turns round grade separation type rolled piece guiding device 13 then, and the port of export of turning round grade separation type rolled piece guiding device 13 from nothing of the present invention then skids off and gets into last milling train 15 (for vertical mill), and this moment is because design feature of the present invention; Make a plurality of rolled pieces that on same horizontal line, are arranged in a row; Change the state that in the vertical direction vertically forms a line into, thereby each rolled piece can get in the pass that a plurality of in the vertical directions of last milling train 15 form a line, the rolled piece after last milling train 15 is rolling is the finished product rolled piece.
Claims (8)
1. be provided with and do not have the rolling system of turning round grade separation type rolled piece guiding device; Second from the bottom the milling train (10) in finish rolling district is horizontal mill; It is characterized in that; The outlet guide device of said second from the bottom milling train (10) is set to slidingtype outlet guide device (11); The rolled piece port of export of said slidingtype outlet guide device is provided with looper (12); The rolled piece port of export of said looper (12) is provided with the nothing that is used for the rolled piece that a row of horizontal is arranged is converted into the state that vertically forms a line and turns round grade separation type rolled piece guiding device (13), and the rolled piece port of export that said nothing is turned round grade separation type rolled piece guiding device (13) is provided with last milling train (15) that has the guide and guards that enters the mouth, and said last milling train (15) is a vertical mill; A plurality of rolled piece arrival ends that a plurality of rolled piece outlets of said looper (12) and said nothing are turned round grade separation type rolled piece guiding device (13) are corresponding one by one to be provided with;
Said nothing is turned round grade separation type rolled piece guiding device and is included pedestal (1), and pedestal (1) top is set with support (2), and support (2) is provided with vertical gripper shoe (3), and gripper shoe (3) is provided with a plurality of through holes that extend along the thickness direction of said gripper shoe (3); Said a plurality of through hole is provided with the mode that axis favours the thickness direction of said gripper shoe (3) respectively; Be provided with a guiding tube (4) within each through hole: the length of each guiding tube (4) has nothing in common with each other; Make being centered close on same the horizontal line of port cross section of first end of each guiding tube (4), being centered close on same the vertical curve of the port cross section of second end of each guiding tube (4).
2. according to claim 1 being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device, it is characterized in that said gripper shoe (3) comprises two risers that are parallel to each other (31).
3. according to claim 1 being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device, it is characterized in that, the port that said guiding tube (4) is gone up as the rolled piece arrival end is tubaeform mouthful.
4. according to claim 1 being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device, it is characterized in that, adopts bolt (5), nut (6) and packing ring (7) said support (2) to be anchored on the top of said pedestal (1).
5. according to claim 1 being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device; It is characterized in that; Be respectively equipped with an annular groove in said gripper shoe (3) both sides on the outer peripheral face of said guiding tube (4), the anchor ring and gripper shoe (3) lateral surface near gripper shoe one side of said annular groove are positioned on the same plane; Be provided with in the said annular groove and be used for guiding tube (4) is fixed in the snap ring (8) on the said gripper shoe (3).
6. according to claim 5 being provided with do not have the rolling system turn round grade separation type rolled piece guiding device, it is characterized in that, said snap ring (8) be circumferentially with fracture.
7. according to claim 1 being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device, it is characterized in that the both sides of said gripper shoe (3) are provided with the ribs (9) that is used for fastening said gripper shoe (3).
8. according to claim 1 being provided with do not have the rolling system of turning round grade separation type rolled piece guiding device, it is characterized in that, the inlet guide and guards of said last milling train (15) is a roller inlet guide and guards (14).
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| CN103537482B (en) * | 2013-11-11 | 2015-09-02 | 山东西王特钢有限公司 | A kind of rolling mill practice of screw-thread steel |
| CN104923560B (en) * | 2015-05-28 | 2017-09-19 | 柳州钢铁股份有限公司 | Pass schedule for milling round steel |
| CN111330973A (en) * | 2020-04-07 | 2020-06-26 | 首钢水城钢铁（集团）有限责任公司 | Two-line cutting rolling process for right-handed anchor rod steel bar |
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| DE3839819A1 (en) * | 1988-04-11 | 1989-10-19 | Thaelmann Schwermaschbau Veb | Rotating distributor for rolled bar stock |
| CN2547429Y (en) * | 2002-05-27 | 2003-04-30 | 邯郸钢铁股份有限公司 | Vertical-horizontal switch and guiding apparatus |
| CN200984588Y (en) * | 2006-12-19 | 2007-12-05 | 江苏沙钢集团有限公司 | Guiding device between steel rolling mills |
| CN201086087Y (en) * | 2007-07-11 | 2008-07-16 | 新疆八一钢铁股份有限公司 | Multi-line dividing and rolling apparatus |
| CN201208618Y (en) * | 2008-05-12 | 2009-03-18 | 福建三钢闽光股份有限公司 | Flat-turning and vertical dividing looper |
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|---|---|
| CN102225431A (en) | 2011-10-26 |
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Denomination of invention: Steel rolling system provided with no-twist interchange type rolling piece guiding device Effective date of registration: 20161109 Granted publication date: 20120801 Pledgee: Merchants Bank of Hefei Economic Development Zone Branch Pledgor: Hefei Orient Energy Efficiency Technology Co., Ltd. Registration number: 2016990000966 |
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Date of cancellation: 20171018 Granted publication date: 20120801 Pledgee: Merchants Bank of Hefei Economic Development Zone Branch Pledgor: Hefei Orient Energy Efficiency Technology Co., Ltd. Registration number: 2016990000966 |