CN108043880B - Device for rolling strip and pressure balancing method - Google Patents
Device for rolling strip and pressure balancing method Download PDFInfo
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- CN108043880B CN108043880B CN201711235170.8A CN201711235170A CN108043880B CN 108043880 B CN108043880 B CN 108043880B CN 201711235170 A CN201711235170 A CN 201711235170A CN 108043880 B CN108043880 B CN 108043880B
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- hydraulic
- roller
- lower pressing
- pressure
- pressing roller
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
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Abstract
The invention relates to the field of roller pressure balance, and provides equipment for rolling a strip, which comprises an upper pressing roller, a lower pressing roller, an adjusting device and a pressure balancing device, wherein the upper pressing roller and the lower pressing roller are matched with each other; the pressure balancing device comprises at least one hydraulic cushion, the hydraulic cushion is provided with a sealed oil cavity, the hydraulic cushion is located below the lower pressing roller, and the hydraulic cushion supports two ends of the lower pressing roller. According to the equipment for rolling the strip, the size between the roll gaps is adjusted through the adjusting device, and after the strip is compressed, the pressure at two ends of the lower pressing roll can be adjusted through the pressure balancing device to balance the strip, so that the strip is prevented from not deviating in the running process; the sealing performance of the whole pressure balancing device can be guaranteed by smearing the sealing glue, and the adjusting precision is improved. A pressure balance method is capable of adjusting the balance of pressures at both ends of a lower pressure roller.
Description
Technical Field
The invention relates to the field of roller pressure balance, in particular to equipment for rolling a strip and a pressure balance method.
Background
A plurality of roller equipment such as pinch rollers, wringing rollers and the like with screwdown devices are arranged on a continuous strip production line. These roller-type devices are equipped with a roll gap opening and pressing device, which is opened during threading and pressed down during operation. In operation, the rollers press the strip, and the pressing and the opening of the rollers are realized by the pressing device. In order to ensure that the strip does not deviate in the running process, the pressing force of the two ends of the roller must be ensured to be balanced and equal as much as possible.
Disclosure of Invention
The invention aims to provide equipment for rolling a strip and a pressure balancing method.
In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions: the equipment for rolling the strip comprises an upper pressing roller, a lower pressing roller, an adjusting device and a pressure balancing device, wherein the upper pressing roller and the lower pressing roller are matched with each other, the adjusting device is used for adjusting the size of a roller gap between the upper pressing roller and the lower pressing roller, and the pressure balancing device is used for balancing the pressure between two ends of the upper pressing roller and the two ends of the lower pressing roller; the pressure balancing device comprises at least one hydraulic cushion, the hydraulic cushion is provided with a sealed oil cavity, the hydraulic cushion is located below the lower pressing roller, and the hydraulic cushion supports two ends of the lower pressing roller.
Furthermore, the number of the hydraulic cushions is two, and the oil cavities of the two hydraulic cushions are communicated through an oil pipe; the two hydraulic cushions are respectively positioned below the lower pressing roller, the two hydraulic cushions respectively support two ends of the lower pressing roller, and the two hydraulic cushions are positioned on the same horizontal line.
Furthermore, sealant is coated at the joint of the oil pipe and the two hydraulic cushions.
Furthermore, first bearing seats are arranged at two ends of the lower pressing roller, and the two hydraulic cushions are arranged below the two first bearing seats respectively.
Furthermore, adjusting device includes flexible pneumatic cylinder, flexible pneumatic cylinder is arranged in the top of last compression roller, just the piston of flexible pneumatic cylinder pass through the connecting rod with the both ends of going up the compression roller are connected, the piston of flexible pneumatic cylinder sets up along vertical direction.
Furthermore, adjusting device includes two swing hydraulic cylinders, two swing hydraulic cylinders are located respectively go up the both ends of compression roller, and two swing hydraulic cylinders pass through the connecting rod respectively with the both ends of going up the compression roller are connected.
The embodiment of the invention also provides another technical scheme: a pressure balancing method is used for balancing pressure between two ends of an upper compression roller and a lower compression roller, wherein two ends of the lower compression roller are supported by hydraulic cushions, and oil cavities of the two hydraulic cushions are communicated through oil pipes; when the pressures at the two ends of the lower pressing roller are unbalanced, the hydraulic oil in the oil cavity can automatically flow to the side with small pressure, so that the balance of the pressures at the two ends of the lower pressing roller is adjusted.
Compared with the prior art, the invention has the beneficial effects that:
1. the size between the roll gaps is adjusted through the adjusting device, after the roll gaps are adjusted to be large, the strip stretches into the roll gaps between the upper pressing roll and the lower pressing roll, after the strip is pressed tightly, the pressure at the two ends of the lower pressing roll can be adjusted through the pressure balancing device, the strip is balanced, and therefore the strip is prevented from deviating in the operation process.
2. The sealing performance of the whole pressure balancing device can be guaranteed by smearing the sealing glue, and the adjusting precision is improved.
3. The upper compression roller can be pulled up or put down in the vertical direction by adopting the telescopic hydraulic cylinder, so that the size of a roller gap between the upper compression roller and the lower compression roller is adjusted.
4. The swing hydraulic cylinder is adopted, so that the upper press roll can be swung to be away from the lower press roll, and the size of a roll gap between the upper press roll and the lower press roll is adjusted.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for rolling a strip according to an embodiment of the present invention;
in the reference symbols: 1-upper press roll; 2-pressing roller; 3-hydraulic cushion; 4-oil pipe; 5-a first bearing seat; 6-a second bearing block; 7-strip.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a device for rolling a strip, including an upper press roller 1, a lower press roller 2, an adjusting device and a pressure balancing device, where the upper press roller 1 and the lower press roller 2 are matched with each other to press a strip 7, and a gap between the upper press roller 1 and the lower press roller 2 is adjusted by the adjusting device. When equipment is in the during operation, the condition that the packing force at compression roller both ends is uneven can appear, and this can lead to 7 off tracking of strip, adopts pressure balance device can adjust the balance of 2 both ends pressures of lower roll, avoids this kind of condition to take place, and is concrete, and pressure balance device includes at least one hydraulic cushion 3, and hydraulic cushion 3 has sealed oil pocket, and hydraulic cushion 3 is located the below of lower roll 2, and hydraulic cushion 3 can also play the effect of supporting lower roll 2. The oil chamber is filled with hydraulic oil, the hydraulic oil can freely move in the sealed oil chamber, and when the pressure on one side of the lower pressing roll 2 is too large, the hydraulic oil can move to the other side to balance the pressure on two ends of the lower pressing roll 2. The hydraulic cushion 3 can also be replaced by a hydraulic oil cylinder, but the pressure change is detected by matching with a pressure sensor, and then the hydraulic oil cylinder is driven to work by a controller so as to achieve the purpose of automatic adjustment.
As the optimization scheme of the invention, when one hydraulic cushion 3 is adopted, the hydraulic cushion 3 is tiled below the lower press roll 2, hydraulic oil is arranged in an oil cavity, and the hydraulic oil can move in the oil cavity according to the actual pressure condition so as to keep the pressure balance at the two ends of the lower press roll 2; when two hydraulic cushions 3 are adopted, please refer to fig. 1, oil cavities of the two hydraulic cushions 3 are communicated through an oil pipe 4, the two hydraulic cushions 3 are respectively positioned below the lower press roller 2, the two hydraulic cushions 3 respectively support two ends of the lower press roller 2, and the two hydraulic cushions 3 are positioned on the same horizontal line.
Further optimize above-mentioned scheme, sealed glue has all been smeared to the junction of oil pipe 4 and two hydraulic cushion 3 to guarantee whole pressure balance device's leakproofness, just can make the adjustment timely, and improve the precision of adjusting. The hydraulic cushion 3 is provided with an oil filling port, hydraulic oil can be injected into the hydraulic cushion 3 through the oil filling port, an oil outlet is formed in the bottom of the hydraulic cushion 3, and the hydraulic oil can be discharged through the oil outlet. And sealant is coated at the oil filling port and the oil outlet.
Referring to fig. 1, as an optimized scheme of the present invention, first bearing seats 5 are disposed at both ends of the lower roll 2, and two hydraulic pads 3 are respectively disposed below the two first bearing seats 5. And two ends of the upper compression roller 1 are respectively provided with a second bearing seat 6 for connecting an adjusting device.
As an optimized scheme of the invention, the adjusting device comprises a telescopic hydraulic cylinder, the telescopic hydraulic cylinder is arranged above the upper compression roller 1, a piston of the telescopic hydraulic cylinder is connected with two ends of the upper compression roller 1 through a connecting rod, and the piston of the telescopic hydraulic cylinder is arranged along the vertical direction. The upper press roll 1 is pulled along the vertical direction of the upper press roll 1 through the telescopic hydraulic cylinder, so that the roll gap between the upper press roll 1 and the lower press roll 2 can be adjusted to be enlarged, and the strip 7 can conveniently stretch into the roll gap. The mounting rack is composed of connecting rods, the mounting rack is erected at two ends of the upper compression roller 1, one connecting rod is located right above the upper compression roller 1, and a piston of the telescopic hydraulic cylinder is arranged on the connecting rod.
As an optimized scheme of the invention, the adjusting device can also comprise two swing hydraulic cylinders which are respectively positioned at two ends of the upper pressing roll 1, and the two swing hydraulic cylinders are respectively connected with two ends of the upper pressing roll 1 through connecting rods. The upper press roll 1 is driven to swing towards the direction far away from the lower press roll 2 through the swing hydraulic oil cylinder, so that the purpose of adjusting the roll gap between the upper press roll 1 and the lower press roll 2 is achieved.
The embodiment of the invention also provides a pressure balancing method, which is used for balancing the pressure between the two ends of the upper compression roller and the lower compression roller, wherein the two ends of the lower compression roller are supported by the hydraulic cushions, and the oil cavities of the two hydraulic cushions are communicated through the oil pipes; when the pressures at the two ends of the lower pressing roller are unbalanced, the hydraulic oil in the oil cavity can automatically flow to the side with small pressure, so that the pressure between the upper pressing roller and the two ends of the lower pressing roller is balanced. The method can automatically adjust, so that the pressing forces at two ends of the lower pressing roller are kept equal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An apparatus for rolling a strip material, comprising an upper roller and a lower roller which are matched with each other, and an adjusting device for adjusting the size of a roll gap between the upper roller and the lower roller, wherein: the device also comprises a pressure balancing device used for balancing the pressure between the two ends of the upper pressing roll and the lower pressing roll; the pressure balancing device comprises at least one hydraulic cushion, the hydraulic cushion is provided with a sealed oil cavity, the hydraulic cushion is positioned below the lower pressing roller, and the hydraulic cushion supports two ends of the lower pressing roller; the adjusting device comprises two swing hydraulic cylinders, the two swing hydraulic cylinders are respectively positioned at two ends of the upper compression roller, and the two swing hydraulic cylinders are respectively connected with two ends of the upper compression roller through connecting rods.
2. An apparatus for rolling strip as defined in claim 1 wherein: the oil cavities of the two hydraulic cushions are communicated through an oil pipe; the two hydraulic cushions are respectively positioned below the lower pressing roller, the two hydraulic cushions respectively support two ends of the lower pressing roller, and the two hydraulic cushions are positioned on the same horizontal line.
3. An apparatus for rolling strip as defined in claim 2 wherein: and sealant is coated at the joint of the oil pipe and the two hydraulic cushions.
4. An apparatus for rolling strip as defined in claim 2 wherein: and two ends of the lower pressing roller are respectively provided with a first bearing seat, and the two hydraulic cushions are respectively arranged below the two first bearing seats.
5. An apparatus for rolling strip as defined in claim 1 wherein: the adjusting device comprises a telescopic hydraulic cylinder, the telescopic hydraulic cylinder is arranged above the upper compression roller, a piston of the telescopic hydraulic cylinder is connected with the two ends of the upper compression roller through a connecting rod, and the piston of the telescopic hydraulic cylinder is arranged along the vertical direction.
6. A pressure balancing method is used for balancing pressure between two ends of an upper compression roller and a lower compression roller, and is characterized in that: two end parts of the lower pressing roller are supported by hydraulic cushions, and oil cavities of the two hydraulic cushions are communicated through oil pipes; when the pressures at the two ends of the lower pressing roller are unbalanced, the hydraulic oil in the oil cavity can automatically flow to the side with small pressure, so that the pressure between the upper pressing roller and the two ends of the lower pressing roller is balanced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711235170.8A CN108043880B (en) | 2017-11-30 | 2017-11-30 | Device for rolling strip and pressure balancing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711235170.8A CN108043880B (en) | 2017-11-30 | 2017-11-30 | Device for rolling strip and pressure balancing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108043880A CN108043880A (en) | 2018-05-18 |
| CN108043880B true CN108043880B (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711235170.8A Active CN108043880B (en) | 2017-11-30 | 2017-11-30 | Device for rolling strip and pressure balancing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110834986A (en) * | 2019-11-24 | 2020-02-25 | 四川亚力超膜科技有限公司 | Self-adjusting conveying roller balancing mechanism for conveying flexible base material |
| CN112845607B (en) | 2021-02-04 | 2023-03-28 | 太原理工大学 | Asynchronous rolling mill with super-large diameter ratio and plate rolling method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55145564A (en) * | 1979-05-01 | 1980-11-13 | Kikusui Kagaku Kogyo Kk | Roll pressure forming machine |
| US4277161A (en) * | 1979-12-10 | 1981-07-07 | Pitney Bowes, Inc. | Cleaner for pressure fixing roller |
| CN85201415U (en) * | 1985-04-24 | 1986-11-19 | 杭法兴 | Energy-accumulating hydraulic overloadproof device for press |
| CN2171431Y (en) * | 1993-09-23 | 1994-07-13 | 湖北鄂城重型机器厂 | Synchronism and pre-tight device for gripping roller lift of four-roller plate plate coiling machine |
| CN202411088U (en) * | 2012-02-08 | 2012-09-05 | 中冶赛迪工程技术股份有限公司 | All-hydraulic roll gap adjustment short stress path rolling mill |
| CN202781905U (en) * | 2012-08-31 | 2013-03-13 | 山东金山汽配有限公司 | High-efficiency constant pressure brake block pressing machine |
-
2017
- 2017-11-30 CN CN201711235170.8A patent/CN108043880B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55145564A (en) * | 1979-05-01 | 1980-11-13 | Kikusui Kagaku Kogyo Kk | Roll pressure forming machine |
| US4277161A (en) * | 1979-12-10 | 1981-07-07 | Pitney Bowes, Inc. | Cleaner for pressure fixing roller |
| CN85201415U (en) * | 1985-04-24 | 1986-11-19 | 杭法兴 | Energy-accumulating hydraulic overloadproof device for press |
| CN2171431Y (en) * | 1993-09-23 | 1994-07-13 | 湖北鄂城重型机器厂 | Synchronism and pre-tight device for gripping roller lift of four-roller plate plate coiling machine |
| CN202411088U (en) * | 2012-02-08 | 2012-09-05 | 中冶赛迪工程技术股份有限公司 | All-hydraulic roll gap adjustment short stress path rolling mill |
| CN202781905U (en) * | 2012-08-31 | 2013-03-13 | 山东金山汽配有限公司 | High-efficiency constant pressure brake block pressing machine |
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| Publication number | Publication date |
|---|---|
| CN108043880A (en) | 2018-05-18 |
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