CN203621303U - Hydraulic control system of double-pinch roller and back pressing roller behind uncoiling machine - Google Patents
Hydraulic control system of double-pinch roller and back pressing roller behind uncoiling machine Download PDFInfo
- Publication number
- CN203621303U CN203621303U CN201320745637.4U CN201320745637U CN203621303U CN 203621303 U CN203621303 U CN 203621303U CN 201320745637 U CN201320745637 U CN 201320745637U CN 203621303 U CN203621303 U CN 203621303U
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- hydraulic control
- valve
- control system
- back pressure
- double
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- 238000003825 pressing Methods 0.000 title abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000000881 depressing effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000013017 mechanical damping Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Abstract
The utility model discloses a hydraulic control system of a double-pinch roller and a back pressing roller behind an uncoiling machine. Double-pinch roller equipment is arranged behind the uncoiling machine, and the double-pinch roller equipment comprises the back pressing roller and the double-pinch roller. A bearing pedestal of the back pressing roller is in transmission connection with screw-down cylinders, piston rods of the two screw-down cylinders of the back pressing roller are respectively provided with a displacement sensor, and the two screw-down cylinders are respectively connected with a hydraulic control system. Each hydraulic control system structurally comprises a hydraulic control one-way valve which is connected with the corresponding screw-down cylinder of the back pressing roller and is controlled by a pilot valve, each hydraulic control one-way valve is connected with a proportional directional valve through a pressure reducing valve, and the pilot valve and each proportional directional valve are correspondingly connected with a hydraulic pressure supply pipeline. The hydraulic control system of the double-pinch roller and the back pressing roller behind the uncoiling machine is simple and easy to implement, good in controllability, and capable of meeting the requirements that two sets of pinch rollers are synchronous and the rolling reduction is consistent.
Description
Technical field
The utility model belongs to metallurgy rolling equipment technical field, is specifically related to two pinch roll back pressure roller hydraulic control systems after a kind of uncoiler.
Background technology
In panel production line, after uncoiler, usually arrange a two pinch roll, to guarantee the strap tension after threading and uncoiler, and band is fed to (as straightener) in next process equipment.In order to be with smoothly steel to introduce two pinch rolls, conventionally between two pinch rolls and uncoiler, arrange a recurvation roller and a back pressure roller, form an easy thick straightener, the curvature of the spinal column with steel is proofreaied and correct.The lifting of back pressure roller presses by two hydraulic cylinder parallel connections afterwards with a set of HYDRAULIC CONTROL SYSTEM driving, easily there is following problem in such control and driving: 1) because hydraulic pressure and the mechanical damping of two groups of rollers can not be in full accord, will cause the priority action difference of hydraulic cylinder, and there will be because pressure distribution is uneven and cause by pressure controlled drafts inconsequent, and then cause back pressure roller horizontal direction to tilt; What is more, return and cause that machinery is stuck, cause back pressure roller cannot work 2) after work a period of time, because the sealing effectiveness of hydraulic cylinder and control valve piece declines, cause control and working oil path in let out, make back pressure roller knockdown, cannot reach technique height, make to be with steel and guide plate and frame friction, form substandard products plate, have a strong impact on production.
Utility model content
The purpose of this utility model is to provide two pinch roll back pressure roller hydraulic control systems after a kind of uncoiler, having solved depressing by two hydraulic cylinder parallel connections of prior art middle roller two ends also drives by a set of HYDRAULIC CONTROL SYSTEM afterwards, exist completely asynchronously, affect the problem of product quality.
The technical scheme that the utility model adopts is, two pinch roll back pressure roller hydraulic control systems after a kind of uncoiler, after uncoiler, arrange that double fastener send roller apparatus, comprise back pressure roller and two pinch roll, the bearing block of back pressure roller with press oil cylinder and be in transmission connection, two of back pressure roller press on the piston rod of oil cylinder and are provided with displacement transducer separately; Two press oil cylinder and are connected with a set of hydraulic control system separately respectively.
Two pinch roll back pressure roller hydraulic control systems after uncoiler of the present utility model, its feature is also:
Every cover hydraulic control system structure is, comprise and the hydraulic control one-way valve that presses oil cylinder and be connected, hydraulic control one-way valve and pilot valve control connection, hydraulic control one-way valve is connected with proportional reversing valve by pressure-reducing valve, pilot valve and proportional reversing valve and corresponding connection of hydraulic pressure voltage supply pipeline.
Pilot valve is selected two position and four-way reversing valves.
The beneficial effects of the utility model are, guarantee the absolute synchronization at back pressure roller two ends by the back pressure roller of the two pinch rolls by autonomous control system, and the in the situation that of the different damping of roller two ends, reach the identical amount of pressing and then reach the abswolute level of roller, the amount of unbalance that this mode can also avoid cylinder body and valve piece to bring with controlled pressure.Simple, controllability is good, can solve the variety of issue that back pressure roller two ends are asynchronous and drafts is inconsistent and cause.
Accompanying drawing explanation
Fig. 1 is the main body mounting structure schematic diagram of the utility model device;
Fig. 2 is the hydraulic principle schematic diagram of the utility model device.
In figure, 1. back pressure roller; 2. pair pinch roll; 3. press oil cylinder; 4. displacement transducer; 5. hydraulic control one-way valve; 6. pilot valve; 7. pressure-reducing valve; 8. proportional reversing valve
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
With reference to Fig. 1, the structure of the utility model device is, arranges that double fastener send roller apparatus after uncoiler, comprises back pressure roller 1 and two pinch rolls 2, the bearing block of back pressure roller 1 with press oil cylinder 3 and be in transmission connection, two of back pressure roller 1 press on the piston rod of oil cylinder 3 and are provided with displacement transducer 4 separately.
With reference to Fig. 2, two press oil cylinder 3 and are connected with a set of hydraulic control system separately respectively, and every cover hydraulic control system structure is,
Comprise and the hydraulic control one-way valve 5 that presses oil cylinder 3 and be connected, hydraulic control one-way valve 5 is selected two position and four-way reversing valves with pilot valve 6() control connection, hydraulic control one-way valve 5 is connected with proportional reversing valve 8 by pressure-reducing valve 7, pilot valve 6 and proportional reversing valve 8 and corresponding connection of hydraulic pressure voltage supply pipeline.Displacement transducer 4 is all connected with controller with hydraulic pressure voltage supply pipeline, realizes monitoring and controls output.
Press that action controls by a proportional reversing valve 8 respectively two of back pressure roller two ends press oil cylinder 3 and realize and adjusting.Physical location is carried out position monitoring by being arranged on each displacement transducer 4 pressing in oil cylinder 3.The amount of pressing of back pressure roller two end axles bearing and the speed that presses are to carry out the stepless control of closed loop by proportional reversing valve 8 and displacement transducer 4 separately, to guarantee the coupling of two ends drafts and synchronous.
The operation principle of the utility model device is, by two covers hydraulic control system arranged side by side is set, be back pressure roller two ends press oil cylinder respectively by control system adjustment driving separately, roller two ends respectively by two groups independently hydraulic control system control and press, its amount of pressing and the speed that presses are carried out closed-loop control by hydraulic system and displacement transducer separately, to guarantee the coupling of the back pressure roller two ends amounts of pressing and synchronous, thereby reach the technological requirement that roller level presses simultaneously.
The utility model device simple in structure, operation controllability is strong, is easy to debugging, in certain steel mill's hot rolling 2250 crosscut unit, tries out, and meets technological requirement completely.
Claims (3)
1. two pinch roll back pressure roller hydraulic control systems after a uncoiler, after uncoiler, arrange that double fastener send roller apparatus, its feature is: comprise back pressure roller (1) and two pinch roll (2), the bearing block of back pressure roller (1) with press oil cylinder (3) and be in transmission connection, two of back pressure roller (1) press on the piston rod of oil cylinder (3) and are provided with displacement transducer (4) separately; Two press oil cylinder (3) and are connected with a set of hydraulic control system separately respectively.
2. two pinch roll back pressure roller hydraulic control systems after uncoiler according to claim 1, its feature is: described every cover hydraulic control system structure is, comprise and the hydraulic control one-way valve (5) that presses oil cylinder (3) and be connected, hydraulic control one-way valve (5) and pilot valve (6) control connection, hydraulic control one-way valve (5) is connected with proportional reversing valve (8) by pressure-reducing valve (7), pilot valve (6) and proportional reversing valve (8) and corresponding connection of hydraulic pressure voltage supply pipeline.
3. two pinch roll back pressure roller hydraulic control systems after uncoiler according to claim 2, its feature is: described pilot valve (6) is selected two position and four-way reversing valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745637.4U CN203621303U (en) | 2013-11-21 | 2013-11-21 | Hydraulic control system of double-pinch roller and back pressing roller behind uncoiling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320745637.4U CN203621303U (en) | 2013-11-21 | 2013-11-21 | Hydraulic control system of double-pinch roller and back pressing roller behind uncoiling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203621303U true CN203621303U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320745637.4U Expired - Lifetime CN203621303U (en) | 2013-11-21 | 2013-11-21 | Hydraulic control system of double-pinch roller and back pressing roller behind uncoiling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203621303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424221A (en) * | 2016-12-19 | 2017-02-22 | 马钢(集团)控股有限公司 | Steel section straightener bottom pinch roller hydraulic drive system and controlling method thereof |
-
2013
- 2013-11-21 CN CN201320745637.4U patent/CN203621303U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424221A (en) * | 2016-12-19 | 2017-02-22 | 马钢(集团)控股有限公司 | Steel section straightener bottom pinch roller hydraulic drive system and controlling method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |