CN104607470B - A kind of modified model has the energy-saving environment-friendly rolling mill guiding device of zero offset capability - Google Patents
A kind of modified model has the energy-saving environment-friendly rolling mill guiding device of zero offset capability Download PDFInfo
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- CN104607470B CN104607470B CN201510044482.5A CN201510044482A CN104607470B CN 104607470 B CN104607470 B CN 104607470B CN 201510044482 A CN201510044482 A CN 201510044482A CN 104607470 B CN104607470 B CN 104607470B
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- 238000005096 rolling process Methods 0.000 title claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 31
- 238000010168 coupling process Methods 0.000 claims abstract description 31
- 238000005859 coupling reaction Methods 0.000 claims abstract description 31
- 230000004888 barrier function Effects 0.000 claims abstract description 12
- 238000003801 milling Methods 0.000 claims description 7
- SZVJSHCCFOBDDC-UHFFFAOYSA-N ferrosoferric oxide Chemical compound O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000008346 aqueous phase Substances 0.000 claims description 3
- 229940056319 ferrosoferric oxide Drugs 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 239000003814 drug Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 description 6
- 230000008844 regulatory mechanism Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003500 flue dust Substances 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002715 modification method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
This application discloses a kind of modified model and there is the energy-saving environment-friendly rolling mill guiding device of zero offset capability, including inlet guide, outlet guide and with servomotor and the control system of leading screw.The two ends of output shaft are connected with servomotor and front active leading screw by shaft coupling respectively；The two ends of output shaft specular respectively is provided with ring-type positioning convex portion and annular barrier protuberance；It is provided with spring in the cavity of each shaft coupling；The centring ring that can match and the most uniform two elastic cylindrical pins it are provided with ring-type positioning convex portion on each shaft coupling inner surface；Shaft coupling and front active leading screw interference fit；The flexible driving lever in a certain angle with output shaft it is provided with outside output shaft.After using said structure, above-mentioned shaft coupling and the setting of flexible driving lever, it is avoided that output shaft occurs stuck or DRY RUN fault, and when an error occurs, it is not required to installing/dismounting servomotor, can the most quickly revise, thus working performance is high, service life is long, simple to operate.
Description
Technical field
The application relates to the auxiliary device during a kind of rolling mill energy-conserving and environment-protective produce, and particularly a kind of modified model has automatically
The energy-saving environment-friendly rolling mill guiding device of debugging functions.
Background technology
Guide and guard refer to during rolling of sectional iron, help rolled piece by set direction and shape before and after being arranged on roll pass
State exactly, the device of the most into and out roll pass.
In general, guide and guard divide again rolling guide and sliding guide, and rolling guide is more stable, and can be very easily
Adjust the distance between deflector roll, but cost is higher, and sliding guide cost is relatively low, but stability does not has rolling guide good, and be difficult to
Adjust.
Guide and guard Main Function in wire production is as follows:
(1) correct rolled piece is imported roll pass；
(2) ensure the deformation that rolled piece is stable in pass, and obtain required geometry and size；
(3) successfully rolled piece is derived by pass, prevent curling round the roll；
(4) control or force rolled piece to reverse or flexural deformation, by certain direction motion；
(5) rolling the shaped steel of any section configuration, almost the inlet and outlet at all rolls will use guide and guards.
Guide and guard can make rolled piece according to required state turnover pass, it is ensured that rolled piece is rolled by the most fixed deformation condition.
Although hole type design is reasonable, if the design of guide and guards or improper use, qualified product can not be shut out, and
It is likely to result in scrape and cuts rolled piece, crowded steel, curling round the roll, even cause roll breakage or serious equipment breakdown and personal injury.
The Chinese invention patent application of Application No. 201010515452.5 disclosed in 19 days January in 2011, it invents wound
Entitled " guiding equipment for rolling mill " made, it, including guide seat, little guide and guard and the left and right guide and guard being fixed on guide seat upper surface
And left baffle, it is characterized in that: connecting below the guide and guard of described left and right has chain-drive mechanism, and described chain-drive mechanism is mainly by leading screw
Transmission, the first sprocket wheel, the second sprocket wheel, coaxial sprocket, motor sprocket and reductor are constituted, and the screw of described lead screw transmission pair divides
Not fixing with guide and guard bottom surface, left and right, lead screw transmission pair is left-right rotary screw thread, keyed jointing the first sprocket wheel on optical axis in the middle part of leading screw, described
One sprocket wheel is linked with the second sprocket wheel by chain, is symmetrically fixed with bearing, bearing is supported with power transmission shaft below guide seat table top,
Being linked with the second sprocket wheel and coaxial sprocket on described power transmission shaft, described coaxial sprocket is linked with motor sprocket by chain, described
Motor sprocket and speed reducer output shaft keyed jointing, guide seat table top is provided with left and right guide and guard and moves radially elongated slot.
Above-mentioned guiding equipment for rolling mill, can drive left and right guide and guard to carry out footpath by two-stage chain drive mechanism and move to the left and right
Position, take apart simultaneously little guide and guard the most conveniently detachable and change milling train deflector roll, easy to use.But, the left and right displacement of left and right guide and guard
And asynchronous, namely the centrage of guide and guard and the unjustified phenomenon of centrage in milling train type hole easily occur.
No. 200910012061.9 Chinese invention patent applications of Application No. disclosed in 4 days November in 2009, it invents wound
Entitled " energy-saving environment-friendly rolling mill guiding device " made, it includes inlet guide, outlet guide, it is characterised in that described enters
The mouth left side wall of guide and guard and the spacing of right side wall connection control system, left side wall and right side wall according to rolled piece width by control are
System scalable；Described control system is to be made up of computer, interface card, driver, servomotor, leading screw, code-disc, interface card
Closed-loop control system, rolled piece width signal is passed to computer by sensor, and computer connects driver by interface card, logical
Device of overdriving makes servomotor drive leading screw work, and the distance of lead screw transmission is passed to computer by code-disc by interface card；Silk
Thick stick includes that front actively leading screw, front passive leading screw, rear actively leading screw, rear passively leading screw constitute synchronous regulation mechanism, and servomotor leads to
Crossing shaft coupling and connect output shaft, output shaft connects front actively leading screw, and front active leading screw is connected with right side wall internal whorl；Front active
Leading screw is bolted with front passive leading screw, and front passive leading screw is contrary with the hand of spiral of front active leading screw and pitch is equal,
Front passive leading screw is connected with left side wall internal whorl；Front active leading screw passes through active leading screw after sprocket wheel, chain, sprocket wheel connection, after
Actively leading screw is connected with right side wall internal whorl, and rear actively leading screw is bolted with rear passive leading screw, rear passive leading screw and
The hand of spiral of rear active leading screw is contrary and pitch is equal, and rear passive leading screw is connected with left side wall internal whorl；Inlet guide is also
Connect and have overall moving-out device；Described overall moving-out device includes that hydraulic cylinder and travelling carriage, hydraulic cylinder and travelling carriage are arranged on
The bottom of guiding protector for entry.
Above-mentioned energy-saving environment-friendly rolling mill guiding device, automation remote control, easy-to-operate, improve work efficiency and
The safety of workman's work；Synchronize double guiding, solve adjustability difference problem；The removal of inlet guide entirety moves into and off-line inspection
Repair, reduce the labor intensity of operating worker and improve the safety of operation, greatly improve the operating rate of milling train, improving work
Efficiency, reduces the repair time, extends the service life of guide and guard.
But, the output shaft in above-mentioned energy-saving environment-friendly rolling mill guiding device is easy to occur wear phenomenon, once servo electricity
The output shaft of machine weares and teares, and coordinating between output shaft with front active leading screw is the most tacit, and the events such as stuck, idle running will occur
Barrier.In the case of servo motor output shaft weares and teares, it usually needs servomotor is disassembled, the polishing of sent for maintenance center,
Revise.
Installing/dismounting is fairly cumbersome, and the time used by installing/dismounting is longer, and the time of sent for maintenance is the longest, thus affects
Milling train properly functioning, working performance is low.
It addition, outlet guide does not has dust arrester, environment is caused the biggest pollution, the healthy composition to staff
Certain threat.
Application content
The application to solve the technical problem that being for above-mentioned the deficiencies in the prior art, and provides one to be avoided that output shaft
There is stuck or DRY RUN fault, and when an error occurs, be not required to installing/dismounting servomotor, can the most quickly revise, thus
Working performance is high, and service life is long, and modified model simple to operate has the energy-saving environment-friendly rolling mill guiding device of zero offset capability.
For solving above-mentioned technical problem, the application the technical scheme is that
A kind of modified model has the energy-saving environment-friendly rolling mill guiding device of zero offset capability, including inlet guide, outlet guide
Defend and can regulate left side wall and the control system of right side wall spacing of inlet guide, this control system include servomotor and
Leading screw；Leading screw includes front actively leading screw, front passive leading screw, rear actively leading screw, the rear synchronous regulation mechanism that passively leading screw is constituted, institute
The two ends stating output shaft are connected with servomotor and front active leading screw by shaft coupling respectively；Described output shaft and servomotor
The one end being connected is disposed with ring-type positioning convex portion and annular barrier protuberance from left to right；Described output shaft and front active silk
One end that thick stick is connected is disposed with annular barrier protuberance and ring-type positioning convex portion from left to right；In the cavity of each shaft coupling
It is provided with spring；It is positioned at that be provided with on each shaft coupling inner surface above ring-type positioning convex portion can be with ring-type positioning convex portion
The centring ring matched；Two elastic cylinders at least it are evenly arranged with on each shaft coupling inner surface of neighbouring annular barrier protuberance
Pin；Shaft coupling and front active leading screw interference fit；The flexible driving lever in a certain angle with output shaft it is provided with outside output shaft；Institute
State and on outlet guide, be provided with the water curtain for dust-collecting device being connected with milling train cooling aqueous phase.
Elastic cylindrical pin in each described shaft coupling is four.
Described flexible driving lever has two, and wherein a flexible driving lever and output shaft institute are 30 ~ 60 ° in angle；Another root is stretched
Abbreviated dialing bar and output shaft are-30 ~-60 ° in angle.
The medicinal liquid spraying that rolled piece surface can be made to form fine and close ferroso-ferric oxide protective layer it is additionally provided with on described outlet guide
Device.
The bearing matched with described leading screw all uses self-lubricating mode.
After the application uses said structure, above-mentioned shaft coupling and the setting of flexible driving lever, it is avoided that output shaft occurs stuck
Or DRY RUN fault, and when an error occurs, it is not required to installing/dismounting servomotor, can the most quickly revise, thus working performance
Height, service life is long, simple to operate.It addition, the setting of water curtain for dust-collecting device, envelope dirt is effective, greatly reduces the row of flue dust
High-volume, protection environment.
Accompanying drawing explanation
Fig. 1 is the structural representation that a kind of modified model of the application has the energy-saving environment-friendly rolling mill guiding device of zero offset capability
Figure.
Wherein have: 10. servomotor；11. motor shafts；12. motor fixing seat；20. output shafts；21. ring-type positioning convex portion；
22. annular barrier portions；30. shaft couplings；31. springs；32. centring rings；33. elastic cylindrical pins；40. first positioning seats；41. crosses
Sunk screw；50. second positioning seats；Active leading screw before 60.；70. stretch driving lever.
Detailed description of the invention
With concrete better embodiment, the application is described in further detail below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of modified model has the energy-saving environment-friendly rolling mill guiding device of zero offset capability, lead including entrance
Defend, outlet guide and left side wall and the control system of right side wall spacing of inlet guide can be regulated.
Above-mentioned control system includes servomotor 10 and leading screw；Can also include computer, interface card, driver, code-disc,
Interface cards etc., concrete setting and enforcement principle, be referred to the patent Shen of Application No. 200910012061.9 in background technology
Please.The bearing matched with leading screw all uses self-lubricating mode, thus more energy-conserving and environment-protective.
Leading screw includes front actively leading screw 60, front passive leading screw, rear actively leading screw, the rear synchronous regulation mechanism that passively leading screw is constituted.
Synchronous regulation mechanism concrete arrange and and implement principle, it is also possible to reference to Application No. 200910012061.9 in background technology
Patent application.The bearing matched with leading screw all uses self-lubricating mode, thus energy-conserving and environment-protective.
The two ends of output shaft 20 are connected with servomotor 10 and front active leading screw 60 by shaft coupling 30 respectively.Servo electricity
Machine 10 is fixed in motor fixing seat 12, and the shaft coupling 30 being connected with servomotor 10 is fixed in the first positioning seat 40.The
Between one positioning seat 40 and motor fixing seat 12, it is connected by several crossed countersunk head screws 41.With front active leading screw 60 phase
The shaft coupling 30 connected is fixed in the second positioning seat 50.
One end that output shaft 20 is connected with servomotor 10, as it is shown in figure 1, be disposed with ring-type location from left to right
Protuberance 21 and annular barrier protuberance 22.
One end that output shaft 20 is connected with front active leading screw 60, as it is shown in figure 1, be disposed with ring-type resistance from left to right
Gear protuberance 21 and ring-type positioning convex portion 22.
It is provided with spring 31 in the cavity of each shaft coupling 30；It is positioned at each shaft coupling above ring-type positioning convex portion 21
The centring ring 32 that can match it is provided with ring-type positioning convex portion 21 on 30 inner surfacies.
Two elastic cylindrical pins at least it are evenly arranged with on each shaft coupling 30 inner surface of neighbouring annular barrier protuberance 22
33, preferably four, it is also possible to for two, three or more.
It is arranged at the shaft coupling 30 of front actively leading screw 60 side and front active leading screw 60 interference fit.It is positioned at servomotor 10 side
Motor shaft 11 interference fit of shaft coupling 30 and servomotor 10.
The flexible driving lever 70 in a certain angle with output shaft 20 it is provided with outside output shaft 20.Flexible driving lever 70 preferably has two
Root, wherein flexible driving lever 70 and output shaft 20 be preferably 30 ~ 60 ° in angle；Another root stretches driving lever 70 and output shaft
20 institutes are preferably-30 ~-60 ° in angle.
It is provided with on outlet guide and cools down the water curtain for dust-collecting device that aqueous phase is connected with milling train, the setting of water curtain for dust-collecting device,
Envelope dirt is effective, greatly reduces the discharge capacity of flue dust, protects environment.
Further, outlet guide is additionally provided with the liquid medicine jet that rolled piece surface can be made to form fine and close ferroso-ferric oxide protective layer
Coating device.
Above-mentioned improved energy-saving environmental protection rolling mill guiding device, when normally using, all elastic cylindrical pins 33, it is in elongation
Locking state, after elastic cylindrical pin 33 elongation, can form tight fit with output shaft 20, so that motor shaft 11 and output shaft 20,
It is respectively formed integrative-structure between output shaft 20 and front active leading screw 60.After servomotor 10 runs a period of time, to output shaft
20 calibrate according to the setting time and revise, it is possible to avoid output shaft 20 that the faults such as stuck or idle running occur.It addition, work as fault
During generation, being not required to installing/dismounting servomotor 10, can the most quickly revise, thus working performance is high, service life is long, operation
Simply.
When reaching the above-mentioned setting time or output shaft 20 breaks down, above-mentioned energy-saving environment-friendly rolling mill guiding device automatic
Modification method, comprises the steps:
The first step, makes all elastic cylindrical pins 33 on two shaft couplings 30 automatically shrink, release two shaft couplings 30 with
Fixing connection between output shaft 20.
Second step, revises the most automatically: flexible driving lever 70 contacts with output shaft 20, and applies certain pushing away to output shaft 20
Power.Due to flexible driving lever 70 with output shaft 20 in there being certain angle, and the upper and lower displacement of output shaft 20 is in ring-type positioning convex portion 21
Effect under, be defined, therefore under the thrust of flexible driving lever 70, output shaft 20 as shown in Figure 1, carried out to the right or to the left
Move axially；During output shaft 20 to the right or moves axially to the left, i.e. complete the most automatically to revise.
3rd step, flexible driving lever 70 resets: flexible driving lever 70 stops stirring, and recovers in situ.
4th step, output shaft 20 resets: in second step, during output shaft 20 to the right or moves axially to the left,
Can compression spring 31, when flexible driving lever 70 resets, spring 31 also resets, output shaft 20 under the effect of spring 31, to the left or
Moving axially to the right, the displacement of spring 31 can be stopped and limit by annular barrier protuberance 22；Ring-type positioning convex portion 21
Output shaft 20 is positioned, prevents output shaft 20 from shaking.
5th step, repeats the above-mentioned first step to the 4th step, number of repetition, can be determined according to actual needs, lock afterwards
All elastic cylindrical pins 33 on two shaft couplings 30, make motor shaft 11 and output shaft 20, output shaft 20 and front active leading screw 60
Between the most again form integrative-structure, complete automatically to revise.
Claims (5)
1. modified model has an energy-saving environment-friendly rolling mill guiding device for zero offset capability, including inlet guide, outlet guide,
And left side wall and the control system of right side wall spacing of inlet guide can be regulated, this control system includes servomotor, output
Axle and leading screw；Leading screw includes front actively leading screw, front passive leading screw, rear actively leading screw, the rear adjusted in concert machine that passively leading screw is constituted
Structure, it is characterised in that: the two ends of described output shaft are connected with servomotor and front active leading screw by shaft coupling respectively；Described
One end that output shaft is connected with servomotor is disposed with ring-type positioning convex portion and annular barrier protuberance from left to right；Described
One end that output shaft is connected with front active leading screw is disposed with annular barrier protuberance and ring-type positioning convex portion from left to right；Often
It is provided with spring in the cavity of individual shaft coupling；It is positioned on each shaft coupling inner surface above ring-type positioning convex portion and is provided with
The centring ring that can match with ring-type positioning convex portion；The most uniformly set on each shaft coupling inner surface of neighbouring annular barrier protuberance
It is equipped with two elastic cylindrical pins；Shaft coupling and front active leading screw interference fit；It is provided with outside output shaft with output shaft in necessarily
The flexible driving lever of angle；The water curtain for dust-collecting device being connected with milling train cooling aqueous phase it is provided with on described outlet guide.
Modified model the most according to claim 1 has the energy-saving environment-friendly rolling mill guiding device of zero offset capability, its feature
It is: the elastic cylindrical pin in each described shaft coupling is four.
Modified model the most according to claim 1 has the energy-saving environment-friendly rolling mill guiding device of zero offset capability, its feature
Being: described flexible driving lever has two, wherein a flexible driving lever and output shaft institute are 30 ~ 60 ° in angle；Another root is flexible to be dialled
Bar and output shaft are-30 ~-60 ° in angle.
Modified model the most according to claim 1 has the energy-saving environment-friendly rolling mill guiding device of zero offset capability, its feature
It is: on described outlet guide, be additionally provided with the liquid medicine jet application that rolled piece surface can be made to form fine and close ferroso-ferric oxide protective layer
Put.
Modified model the most according to claim 1 has the energy-saving environment-friendly rolling mill guiding device of zero offset capability, its feature
It is: the bearing matched with described leading screw all uses self-lubricating mode.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510044482.5A CN104607470B (en) | 2015-01-29 | 2015-01-29 | A kind of modified model has the energy-saving environment-friendly rolling mill guiding device of zero offset capability |
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| CN201510044482.5A CN104607470B (en) | 2015-01-29 | 2015-01-29 | A kind of modified model has the energy-saving environment-friendly rolling mill guiding device of zero offset capability |
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| CN104607470B true CN104607470B (en) | 2016-09-28 |
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| CN105145450A (en) * | 2015-09-25 | 2015-12-16 | 中国水产科学研究院淡水渔业研究中心 | Multifunctional automatic feeding boat for shrimp and crab culture |
| CN110404961A (en) * | 2019-07-24 | 2019-11-05 | 四川易尚天交实业有限公司 | A kind of intelligent precise milling train producing bar |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829518A (en) * | 1981-08-14 | 1983-02-21 | Hitachi Ltd | Side guide for rolling mill |
| JP2000233215A (en) * | 1999-02-15 | 2000-08-29 | Nippon Steel Corp | Guide device for shape rolling mill |
| CN101569895A (en) * | 2009-06-17 | 2009-11-04 | 李延家 | Energy-saving environment-friendly rolling mill guiding device |
| CN101947562A (en) * | 2010-10-22 | 2011-01-19 | 天津津重重工机器设备制造有限公司 | Guiding equipment for rolling mill |
| CN204769900U (en) * | 2015-01-29 | 2015-11-18 | 无锡昊瑜节能环保设备有限公司 | Improved generation has zero offset capability's energy -concerving and environment -protective rolling mill and leads equipment of defending |
-
2015
- 2015-01-29 CN CN201510044482.5A patent/CN104607470B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5829518A (en) * | 1981-08-14 | 1983-02-21 | Hitachi Ltd | Side guide for rolling mill |
| JP2000233215A (en) * | 1999-02-15 | 2000-08-29 | Nippon Steel Corp | Guide device for shape rolling mill |
| CN101569895A (en) * | 2009-06-17 | 2009-11-04 | 李延家 | Energy-saving environment-friendly rolling mill guiding device |
| CN101947562A (en) * | 2010-10-22 | 2011-01-19 | 天津津重重工机器设备制造有限公司 | Guiding equipment for rolling mill |
| CN204769900U (en) * | 2015-01-29 | 2015-11-18 | 无锡昊瑜节能环保设备有限公司 | Improved generation has zero offset capability's energy -concerving and environment -protective rolling mill and leads equipment of defending |
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Effective date of registration: 20180105 Address after: 510630 Guangdong iron and Steel Research Institute, Tianhe District five mountain road, Tianhe District, Guangzhou City, Guangdong Patentee after: GUANGZHOU JINGYI STEEL CO.,LTD. Address before: 214181 Huishan, Jiangsu province Weir Road, No. 17, No. Patentee before: WUXI HAOYU ENERGY SAVING ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |
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Effective date of registration: 20210622 Address after: 512799 No.18 Fuyuan Avenue, Fuyuan Industrial Park, Ruyuan Yao Autonomous County, Shaoguan City, Guangdong Province Patentee after: Shaoguan tiancanjingyi profiled wire Co.,Ltd. Address before: 510630 Guangdong iron and Steel Research Institute, Wushan Road, Tianhe District, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU JINGYI STEEL Co.,Ltd. |
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Effective date of registration: 20230118 Address after: 512600 No.203, 2nd Floor, Demonstration Farm, Yingfeng East Road, Rucheng Town, Ruyuan Yao Autonomous County, Shaoguan City, Guangdong Province Patentee after: Shaoguan Jingyi Steel Co.,Ltd. Address before: 512799 No.18 Fuyuan Avenue, Fuyuan Industrial Park, Ruyuan Yao Autonomous County, Shaoguan City, Guangdong Province Patentee before: Shaoguan tiancanjingyi profiled wire Co.,Ltd. |