CN1672824A - Feed-through rod locating method and apparatus - Google Patents
Feed-through rod locating method and apparatus Download PDFInfo
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- CN1672824A CN1672824A CN 200410071790 CN200410071790A CN1672824A CN 1672824 A CN1672824 A CN 1672824A CN 200410071790 CN200410071790 CN 200410071790 CN 200410071790 A CN200410071790 A CN 200410071790A CN 1672824 A CN1672824 A CN 1672824A
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- plug
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Abstract
The feed-through rod locating method and apparatus is used for accurate locating rod in off-line feed-through and reuse of rod of pipe rolling machine. In the rod locating process, the chain conveyer with rod is made to pass through five motion courses of starting, accelerating, uniform moving, decelerating and stopping, and the rod is thrown in the steps of uniform moving and decelerating. The feed-through rod apparatus includes one chain conveying mechanism and locating rolling way. The chain conveying mechanism is stopped in the accurate location of the locating rolling way. The present invention can reduce the feed-through time of rod, decrease the temperature lowering of the steel pipe, lower the rolling load and stop the rod in accurate location.
Description
Technical field:
The present invention relates to a kind of localization method and device of feed-through rod, a kind of off-line that is applied to of more specifically saying so is worn the accurate method and apparatus of location of feed-through rod in the pipe mill that rod, plug recycle.
Background technology:
As the pipe mill of internal strain instrument use circulation plug, its plug must insert in advance, and this process is referred to as " wearing rod in advance ".At present, the method for its insertion is that holder has the chain-linked conveyer of plug that plug is inserted in the steel pipe tube chamber that is parked on the roller-way of location exactly.In order to further specify insertion localization method and the device of wearing rod in advance, describe in conjunction with Fig. 1 and Fig. 2.Fig. 1 is the stop position of existing plug and the location drawing of mandrel trolley carriage, and Fig. 2 is the operation principle schematic diagram of pre existing punching bar device.The first half of Fig. 2 has been represented the transmission course of plug 9 on chain-linked conveyer, the latter half of Fig. 2, and when having represented that chain-linked conveyer stops for the first time, plug 9 residing positions, at this moment plug 9 mainly is positioned on the roller-way 5 of location.The chain of chain-linked conveyer is provided with push pedal 3 and tray 4, and plug 9 is positioned on the chain 2, and the tail end face of plug 9 has a position 9b who attenuates near push pedal 3 near plug afterbody 9a end face, and this position is dropped in the circular groove of tray 4.Push pedal 3 on the chain promotes the end face of plug afterbody 9a, plug is sent into the tube chamber of steel pipe 10.The effect of tray 4 is to prevent plug play in motion process, and can be when plunger is failed, tray pulling plug rollback.The power that push pedal 3 promotion plugs advance comes from motor, and motor is by 2 motions of gear driven chain.The motion mode of chain delivery machanism is, holder has the chain of chain-linked conveyer of plug successively through starting, quicken operation, be tending towards traveling at the uniform speed, run slowly, stop for the first time, startup once more, low cruise, eight courses of work such as stops at last.The position that chain stops for the first time is exactly the position (with reference to the latter half of figure 2) that plug need be located.At this moment still on the chain 2 of chain-linked conveyer, plug still drops in the circular groove of tray 4 near the position 9b that attenuates of tail end face the afterbody 9a of plug 2, does not break away from chain-linked conveyer.Wearing excellent next process in advance is, by stepping mechanism 11 plug 9 and steel pipe 10 is delivered on the roll line, and mandrel trolley claw 12 is caught plug afterbody 9a, plug 9 is sent into roll mill be rolled.It is accurate to be parked in intraluminal position in order to ensure plug, it is accurate to control chain push pedal stop position, be that second of the plug position 9c that attenuates must be placed in the V-shaped part of mandrel trolley front carriage 13, otherwise the claw 12 of mandrel trolley is just grabbed the incessantly afterbody 9a of plug, breaks down.Accurate in order to control the position that the chain push pedal stops, sense switch need be set, chain is slowed down stop.There are two bigger problems in the localization method of this feed-through rod and device, and the one, because work under bad environment, sense switch often can not accurately detect the position of plug, the position that plug is stopped is inaccurate, causes equipment breakdown; The 2nd, because the location of plug must reach by the out of service of sprocket wheel conveying mechanism, cause the time of wearing rod in advance longer, the problem of bringing thus is that the time lengthening that feed-through rod takies descends the temperature of steel pipe, causes rolling load to improve.
Summary of the invention:
The technical problem to be solved in the present invention is, provides in a kind of feed-through rod process, and it is short to wear the rod time, and accurate positioning, the method and apparatus of feed-through rod location reliably.
For the method that solves the feed-through rod location that above technical problem takes is: the chain delivery machanism that holder has a plug through startup, quicken operation, be tending towards traveling at the uniform speed, run slowly, five motion processes out of service, and in being tending towards traveling at the uniform speed or run slowly, plug is dished out, realize the location of plug, the position of this location just in time is the position that plug leaves the conveyer push pedal.
Plug is the location of in chain delivery machanism is tending towards traveling at the uniform speed plug being dished out, and the plug inertia of at this moment dishing out is a little bigger relatively, and the accuracy rate of location is under some influence.
Plug is the location of in chain delivery machanism is tending towards running slowly plug being dished out, and the plug inertia of at this moment dishing out is less relatively, the accuracy rate height of location.
After plug was dished out, when it had the bounce-back trend, chain delivery machanism imposed augmented thrust to the afterbody of plug again, and plug is further accurately located.
The structure of feed-through rod device is, it by driven sprocket 1, drive sprocket 8, chain 2, be positioned at two push pedals 3 on the chain, two
TrayThe chain delivery machanism that 4 grades constitute, and location
Roller-way5 form, and are characterized in, in the location
Roller-way5 front is provided with baffle plate 7, and chain delivery machanism has a distance L with respect to the accurate position that the end face of plug afterbody 9a stops on the roller-way 5 of location, and provides by following formula:
L＝((H+R)
2-(R+D/2-d/2)
2)
1/2
The height of H=push pedal 3
The radius of R=sprocket wheel
The diameter of D=plug 9
The diameter of d=plug afterbody 9a
Distance L is that chain delivery machanism and a size of locating raceway 5 relative positions are installed, and is to determine according to the regular size of plug, after determining, generally no longer changes.If the diameter of plug changes, then can determine the height of push pedal 3 according to above formula, to guarantee the plug accurate positioning behind the conversion diameter.
On the chain separated by a distance of each push pedal 3 back, be provided with auxiliary push pedal 6.
Distance between push pedal 3 and the auxiliary push pedal 6 is preferably
NK, K-chain link pitch, n-chain number.
Utilize feed-through rod localization method of the present invention, chain delivery machanism does not make plug location by stopping operating, and directly delivers to the precalculated position but in being tending towards traveling at the uniform speed or run slowly plug dished out.Like this, can shorten and wear the rod time in advance more than 2 seconds, the relative prior art of temperature of steel pipe is descended more than 100 degrees centigrade less, rolling load reduces, and saves the energy and cost.According to statistics, a year is produced the enterprise of 220,000 tons of steel pipes, and the economic benefit of the annual creation of only economizing on electricity just reaches about 1,000,000 yuan.Because the chain delivery machanism of feed-through rod device of the present invention has a distance L with respect to the plug tail end face between the accurate position of stopping on the roller-way 5 of location, baffle plate 7 is set up in the place ahead at the location roller-way, removed sense switch of the prior art, do not need accurately to control the position that sprocket wheel stops, having eliminated plug possibility not in place.Raising equipment effective operation rate 5% for an enterprise that produces 220000 tons of steel pipes per year, can increase the output value and reach more than 2,000 ten thousand yuan about 2,000,000 yuan of increase profit in 1 year.
The drawing explanation:
Fig. 1-plug the stop position of pre existing punching bar device and the location drawing of mandrel trolley carriage
Two kinds of working state structure schematic diagrames of Fig. 2-pre existing punching bar device
Two kinds of working state structure schematic diagrames of Fig. 3-feed-through rod device of the present invention
The various parameter schematic diagrames of Fig. 4-feed-through rod device of the present invention
The specific embodiment:
Provide embodiments of the invention below in conjunction with accompanying drawing, be used for further specifying technical solution.
Embodiment: with reference to figure 3, Fig. 4.Chain delivery machanism driving wheel 8 central axis of this feed-through rod device provide by following formula with respect to the distance L of the accurate position that plug afterbody 9a end face stops on the roller-way 5 of location:
L＝((H+R)
2-(R+D/2-d/2)
2)
1/2
H is the height of push pedal 3, and R is the radius of drive sprocket 8, and D is a kind of diameter of plug commonly used, and d is the diameter of a kind of plug afterbody 9a commonly used
The chain 2 of chain delivery machanism is engaged on the sprocket wheel 1, and two push pedals 3, two auxiliary push pedals 6 and two trays 4 all are fixedly connected on chain 2.Here, the distance between push pedal 3 and the auxiliary push pedal 6 is nk, n=1, k=chain pitch.The baffle plate 7 of roller-way 5 fronts, location is an elastic baffle.
Operation principle is, holder has the chain 2 of plug 9 at first to start under the drive of sprocket wheel and motor, quicken gradually then, be tending towards the state of traveling at the uniform speed after accelerating to the speed of setting, and when the head of plug 9 runs to the residing position of driving wheel, run slowly, in the process of running slowly, push pedal 3 promotion plugs 9 leave tray 4 and the push pedal 3 on the chain, and in the tube chamber through steel pipe 10.Chain 2 segment distance that continues to run slowly is parked on the initial position, wait to be transmitted, locate next feed-through rod.Plug 9 leaves chain 2, all drops on the roller-way 5 of location, because the inertia of plug 9, plug 9 can be to the certain distance of front slide on the roller-way 5 of location, for anti-sliding stop, and the position that plug 9 ends arrive, the elastic baffle 7 of installation can block plug.Behind the plug contact baffle plate 7, sometimes a little distance may rebound, leave the accurate stop position of requirement, then its can be under the opposition of baffle plate 7 and retreat, at this moment, push pedal 3 breaks away from plug, and auxiliary baffle plate 6 just in time touches mutually with the plug tail end face that retreats, and plug is on the position of again can accurate in locating under the thrust of auxiliary baffle plate 6 setting.
Need to prove that if reasonable in design, it is suitable that the speed of service of chain delivery machanism is determined, so, plug 9 does not have rebound phenomena after dishing out, but directly accurately locatees, and does not at this moment just need the augmented thrust of auxiliary baffle plate 6.Generally speaking, if dishing out of plug 9 is the running slowly the stage of chain delivery machanism, then can not assist baffle plate 6.
In like manner, the technical solution that provides according to the present invention can also provide other embodiment.The location of dishing out as, plug is to be tending towards in the process of traveling at the uniform speed at chain delivery machanism, and the constant embodiment of other parts structure, and compares with embodiment 1, the constant and embodiment of auxiliary push pedal 6 not only of the structure of other parts.
Claims (8)
1, a kind of localization method of feed-through rod, it is characterized in that, the chain delivery machanism that holder has a plug through startup, quicken operation, be tending towards traveling at the uniform speed, run slowly, five motion processes out of service, and in being tending towards traveling at the uniform speed or run slowly, plug is dished out, realize the location of plug, the position of this location just in time is the position that plug leaves the conveyer push pedal.
2, the localization method of feed-through rod according to claim 1 is characterized in that, plug is the location of in chain delivery machanism is tending towards traveling at the uniform speed plug being dished out.
3, the localization method of feed-through rod according to claim 1 is characterized in that, plug is the location of in chain delivery machanism is tending towards running slowly plug being dished out.
According to the localization method of claim 1,2 or 3 described feed-through rods, it is characterized in that 4, after plug was dished out, when it had the bounce-back trend, chain delivery machanism imposed augmented thrust to the afterbody of plug again, and plug is further accurately located.
5, a kind of feed-through rod device, it by driven sprocket (1), drive sprocket (8), chain (2), be positioned at the chain delivery machanism that two push pedals (3) on the chain, two trays (4) etc. constitute, form with location roller-way (5), it is characterized in that, front at location roller-way (5) is provided with baffle plate (7), the central axis of chain delivery machanism driving wheel 8 has a distance L with respect to the end face of plug afterbody 9a between the accurate position of stopping on the roller-way 5 of location, and provides by following formula:
L＝((H+R)
2-(R+D/2-d/2)
2)
1/2
The height of H=push pedal 3
The radius of R=drive sprocket 8
The diameter of D=plug 9
The diameter of d=plug afterbody 9a
6, feed-through rod device according to claim 5 is characterized in that, is provided with auxiliary push pedal (6) on the chain separated by a distance of each push pedal (3) back.
7, feed-through rod device according to claim 6 is characterized in that, the distance between push pedal (3) and the auxiliary push pedal (6) is preferably nK, K-chain link pitch, n-chain number.
8, according to claim 5,6 or 7 described feed-through rod devices, it is characterized in that baffle plate (7) is an elastic baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100717909A CN1293953C (en) | 2004-03-25 | 2004-07-28 | Feed-through rod locating method and apparatus |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200420039567 | 2004-03-25 | ||
| CN200420039567.1 | 2004-03-25 | ||
| CNB2004100717909A CN1293953C (en) | 2004-03-25 | 2004-07-28 | Feed-through rod locating method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1672824A true CN1672824A (en) | 2005-09-28 |
| CN1293953C CN1293953C (en) | 2007-01-10 |
Family
ID=35045742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100717909A Expired - Fee Related CN1293953C (en) | 2004-03-25 | 2004-07-28 | Feed-through rod locating method and apparatus |
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| CN (1) | CN1293953C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102240678A (en) * | 2011-06-27 | 2011-11-16 | 无锡西姆莱斯石油专用管制造有限公司 | Fast positioning device of core rod |
| CN101842170B (en) * | 2008-08-25 | 2012-08-15 | Sms米尔股份有限公司 | Method for producing a seamless steel pipe and rolling mill for performing the method |
| CN109719134A (en) * | 2019-03-06 | 2019-05-07 | 常州九洲创胜特种铜业有限公司 | Copper pipe roll mill and its working method |
| CN112474827A (en) * | 2020-10-28 | 2021-03-12 | 太原重工股份有限公司 | Automatic control method for reducing fixed-point abrasion of retained mandrel |
| CN116532495A (en) * | 2023-05-25 | 2023-08-04 | 松阳县永欣机械制造有限公司 | Pipe blank anti-collision control device and cold pilger mill |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE715196A (en) * | 1967-05-18 | 1968-09-30 | ||
| SU747545A1 (en) * | 1976-03-09 | 1980-07-18 | Днепропетровский Трубопрокатный Завод Им. Ленина | Mechanism for mounting mandrel in automatic tube rolling mill |
| FR2483808A1 (en) * | 1980-06-06 | 1981-12-11 | Vallourec | CHUCK RETAINER BENCH FOR CHUCK THAT CARRYS A TUBE IN A ROLLING MILL |
| IT1169638B (en) * | 1983-10-28 | 1987-06-03 | Innocenti Santeustacchio Spa | EQUIPMENT FOR LATERAL TRANSFER OF SPINDLES INTO A TUBE ROLLER |
| CN1062311A (en) * | 1990-12-15 | 1992-07-01 | 冶金工业部重庆钢铁设计研究院 | Limiting and clamping device of mandrel for inclined rolling on tube-rolling mill |
| US5186035A (en) * | 1992-02-18 | 1993-02-16 | General Electric Company | Tube loading sleeve for pilger mill |
| JPH10137816A (en) * | 1996-11-07 | 1998-05-26 | Nkk Corp | Device for pulling out mandrel bar |
| CN2408983Y (en) * | 2000-02-18 | 2000-12-06 | 烟台鲁宝钢管有限责任公司 | Mandrel |
-
2004
- 2004-07-28 CN CNB2004100717909A patent/CN1293953C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101842170B (en) * | 2008-08-25 | 2012-08-15 | Sms米尔股份有限公司 | Method for producing a seamless steel pipe and rolling mill for performing the method |
| CN102240678A (en) * | 2011-06-27 | 2011-11-16 | 无锡西姆莱斯石油专用管制造有限公司 | Fast positioning device of core rod |
| CN109719134A (en) * | 2019-03-06 | 2019-05-07 | 常州九洲创胜特种铜业有限公司 | Copper pipe roll mill and its working method |
| CN109719134B (en) * | 2019-03-06 | 2023-10-20 | 常州九洲创胜特种铜业有限公司 | Copper pipe rolling machine and working method thereof |
| CN112474827A (en) * | 2020-10-28 | 2021-03-12 | 太原重工股份有限公司 | Automatic control method for reducing fixed-point abrasion of retained mandrel |
| CN112474827B (en) * | 2020-10-28 | 2022-09-13 | 太原重工股份有限公司 | Automatic control method for reducing fixed-point abrasion of retained mandrel |
| CN116532495A (en) * | 2023-05-25 | 2023-08-04 | 松阳县永欣机械制造有限公司 | Pipe blank anti-collision control device and cold pilger mill |
| CN116532495B (en) * | 2023-05-25 | 2023-11-07 | 松阳县永欣机械制造有限公司 | Pipe blank anti-collision control device and cold pilger mill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1293953C (en) | 2007-01-10 |
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