CN104085726A - Pneumatic control system and method for coiler compression roller - Google Patents
Pneumatic control system and method for coiler compression roller Download PDFInfo
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- CN104085726A CN104085726A CN201410287858.0A CN201410287858A CN104085726A CN 104085726 A CN104085726 A CN 104085726A CN 201410287858 A CN201410287858 A CN 201410287858A CN 104085726 A CN104085726 A CN 104085726A
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Abstract
The invention discloses a pneumatic control system and method for a coiler compression roller. The pneumatic control system comprises a pneumatic control loop which is divided into a first pneumatic branch, a second pneumatic branch and a third pneumatic branch through a pneumatic FRL (filter, regulator and lubricator) assembly. A first pneumatic branch is sequentially connected with a first reducing valve and a two-position five-way dual-electric control reversing valve. A second reducing valve is connected with the third pneumatic branch. The two-position five-way dual-electric control reversing valve, a three-position five-way dual-electric control reversing valve and the second reducing valve are all connected with a three-position five-way air control reversing valve which is connected with a compression roller cylinder of the coiler. By the pneumatic control system and method, the coiler compression roller can be released, lifted and in a state of compressed floating along with increased coiling barrel strips and has adjustment convenience and reliable working.
Description
Technical field
The invention belongs to sheet metal strip and batch technical field, relate to a kind of pneumatic control system for coiler press-roller, particularly a kind of during for reeler high-speed wind-up tin plate, require pressure roller to realize the coiler press-roller pneumatic control system of a plurality of functions; The present invention is also described the pneumatic control method of this pneumatic control system.
Background technology
Coiler press-roller needs to realize a plurality of functions in the coiling process of band.When reeler high-speed wind-up band, while especially batching the tin plate of surperficial easy damaged, for preventing scratching strip surface because high-speed wind-up produces shake, spy requires the pressure roller of reeler to compress all the time band, now previous coil of strip completes and batches, next coil of strip helps after several circles of volume, coiler press-roller puts down and is pressed against the upper surface of band, rising along with reeler speed, increasing of reel band, pressure roller can tightly press and float and slowly lift, and the power that pressure roller is pressed on band can regulate according to actual needs.When the complete preparation of strip coiling on reeler finishes up, the end rotation of band, to suitable position, now needs pressure roller to lift fast, and then coil stripping car unloads volume.
Therefore in the process of whole reeler work, require pressure roller can realize a plurality of functions, particularly during reeler high-speed wind-up, pressure roller can be realized the function that tightly presses and float and lift.
Summary of the invention
For making coiler press-roller realize that pressure roller puts down, pressure roller increases with coiler mandrel band compression is floated and pressure roller lifts a plurality of functions, and easy to adjust, reliable operation, the invention provides a kind of pneumatic control system for coiler press-roller and method.
The technical scheme that the present invention takes is:
A pneumatic control system for coiler press-roller, comprises Pneumatic control circuit, it is characterized in that, described Pneumatic control circuit is divided into the first pneumatic branch, the second pneumatic branch and the 3rd pneumatic branch through pneumatic triple piece.
In described the first pneumatic branch, be connected with the first reducing valve and two two electric control reversing valves of five-way in turn.
In described the second pneumatic branch, be connected with the two electric control reversing valves of 3 position-5 way.
In described the 3rd pneumatic branch, be connected with the second reducing valve.
The two electric control reversing valves of described two five-ways, the two electric control reversing valves of 3 position-5 way are all connected with same 3 position-5 way Pneumatic reversal valve with the second reducing valve.
Described 3 position-5 way Pneumatic reversal valve is connected with the pressure roller cylinder of reeler.
Further, a ball valve is also installed in the Pneumatic control circuit of pneumatic triple piece upstream.
The two electric control reversing valves of described two five-ways have two pressure gas ports, and one of them pressure gas port is installed plug, and another pressure gas port is connected with the exhausr port of 3 position-5 way Pneumatic reversal valve.
The two electric control reversing valves of described 3 position-5 way have two pressure gas ports, and two pressure gas ports of the two electric control reversing valves of 3 position-5 way are connected with two control gas ports of 3 position-5 way Pneumatic reversal valve respectively.
The air extractor duct of described the second reducing valve is connected with the admission port of 3 position-5 way Pneumatic reversal valve.
Described 3 position-5 way Pneumatic reversal valve has two pressure gas ports, and two pressure gas ports of 3 position-5 way Pneumatic reversal valve respectively connect an one-way throttle valve; Described two one-way throttle valves are connected with two chambeies of pressure roller cylinder respectively.
The bar chamber interface of described pressure roller cylinder is provided with by pass valve.
As preferably, an exhausr port in the two electric control reversing valve outlet of described two five-ways fixes a silencer.Two exhausr ports in the two electric control reversing valve outlet of 3 position-5 way are respectively installed a noise silencer.An exhausr port in 3 position-5 way Pneumatic reversal valve exhausr port fixes a silencer.
Each gas port turnover direction of described 3 position-5 way Pneumatic reversal valve is two-way.
Technical scheme of the present invention further comprises:
Adopt the above-mentioned pneumatic control system for coiler press-roller to carry out pneumatic control method, according to the strip coiling stage on reeler, this pneumatic control method is described below:
1) when previous coil of strip completes, batch, next coil of strip helps after several circles of volume, and coiler press-roller puts down, and now the right side electromagnet of the two electric control reversing valves of 3 position-5 way continues energising, the instantaneous energising of left side electromagnet of two two electric control reversing valves of five-way;
When the left side electromagnet energising of right side electromagnet and two two electric control reversing valves of five-way of the two electric control reversing valves of 3 position-5 way, the two electric control reversing valves of 3 position-5 way change to location right; The pressurized air of the second pneumatic branch is communicated to the gas control mouth on 3 position-5 way Pneumatic reversal valve right side through the two electric control reversing valves of 3 position-5 way, then from the left side gas control mouth of 3 position-5 way Pneumatic reversal valve, through the two electric control reversing valves of 3 position-5 way, drain into atmosphere; Now the pressurized air of the 3rd pneumatic branch is communicated to the bar chamber of pressure roller cylinder through 3 position-5 way Pneumatic reversal valve, the pressurized air of pressure roller cylinder rodless cavity is communicated to the two electric control reversing valves of two five-ways through 3 position-5 way Pneumatic reversal valve, and discharges from the exhausr port of the two electric control reversing valves of two five-ways;
2) along with the rising of reeler speed, increasing of coiler mandrel band, require coiler press-roller tightly press band and float and lift, now the right side electromagnet of the two electric control reversing valves of 3 position-5 way continues energising, the instantaneous energising of right side electromagnet of two two electric control reversing valves of five-way;
When the instantaneous energising of right side electromagnet of the two electric control reversing valves of two five-ways, the compressed air communication of the first pneumatic branch is to the bar chamber of pressure roller cylinder, regulate the pressure of the first reducing valve of the first pneumatic branch and the second reducing valve of the 3rd pneumatic branch, thereby control the pressure that pressure roller cylinder presses band, coiler press-roller presses band and floats and lift;
3) when the complete preparation of the strip coiling on reeler finishes up, coiler press-roller need to be lifted fast, now the left side electromagnet of the two electric control reversing valves of 3 position-5 way continues energising;
When the electromagnet energising of the left side of the two electric control reversing valves of 3 position-5 way, the two electric control reversing valves of 3 position-5 way change to left position, the pressurized air of the second pneumatic branch is communicated with the gas control mouth in 3 position-5 way Pneumatic reversal valve left side through the two electric control reversing valves of 3 position-5 way, then from the right side gas port of 3 position-5 way Pneumatic reversal valve, through the two electric control reversing valves of 3 position-5 way, drains into atmosphere; Now the pressurized air of the 3rd pneumatic branch is communicated to the rodless cavity of pressure roller cylinder through 3 position-5 way Pneumatic reversal valve, and the pressurized air of pressure roller cylinder rod chamber is discharged through the exhausr port of 3 position-5 way Pneumatic reversal valve.
Especially, when the pressure in described pressure roller cylinder rod chamber reaches while setting up pressure, pressure roller cylinder is by the by pass valve release of pressure of bar chamber interface.
Advantage of the present invention is:
(1) Pneumatic control circuit of the present invention is divided into the first pneumatic branch, the second pneumatic branch and the 3rd pneumatic branch through one through pneumatic triple piece, each pneumatic branch connects different change-over valves, by controlling the "on" position of the electromagnet in change-over valve, realize the interaction of pressure gas and coiler press-roller cylinder, thereby realize the unsteady and pressure roller of the compression that pressure roller puts down, pressure roller increases with coiler mandrel band of coiler press-roller, lift a plurality of functions.
(2) from each element of pneumatic control system of the present invention, described pneumatic control system is easy to adjust, and reliable operation, the job requirements in the time of can meeting reeler high-speed wind-up tin plate.
(3) the turnover direction of each gas port of the 3 position-5 way Pneumatic reversal valve in pneumatic control system is two-way, both can be from this gas port air inlet, and also can be from this gas port exhaust.
(4) pneumatic control system of the present invention is also provided with one-way throttle valve and by pass valve.Wherein, one-way throttle valve is arranged in the gas circuit between 3 position-5 way Pneumatic reversal valve and two interfaces of pressure roller cylinder, can regulate the running velocity of pressure roller cylinder.By pass valve is arranged on the rod chamber gas port place of pressure roller cylinder, can actv. prevent pressure roller cylinder coiler press-roller press and the process of lifting of floating in pressure increase excessive, thereby affect the unsteady lifting function of pressure roller.
Below with reference to drawings and Examples, the present invention is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of reeler and pressure roller thereof.
Fig. 2 realizes the air operated control schematic diagram of lag function for coiler press-roller.
Description of reference numerals: 1, coiler mandrel; 2, pressure roller cylinder; 3, coiler press-roller; 4, ball valve; 5, pneumatic triple piece; 6, the first reducing valve; 7, two two electric control reversing valves of five-way; 8, the two electric control reversing valves of 3 position-5 way; 9,3 position-5 way Pneumatic reversal valve; 10, one-way throttle valve; 11, by pass valve; 12, noise silencer; 13, the second reducing valve.
The specific embodiment
Embodiment 1:
As shown in Figure 1, the chief component parts of reeler comprise coiler mandrel 1, coiler press-roller 3 and the pressure roller cylinder 2 that drives coiler press-roller 3.In the process of coiler mandrel 1 winding strips, need coiler press-roller 3 to make corresponding action adjustment according to the kind difference of the state that batches of band and band.The tin plate that the coiler mandrel 1 of take batches surperficial easy damaged is example, and when preventing because of high-speed wind-up, the band being batched produces shake and scratches strip surface, and spy requires coiler press-roller 3 to compress all the time band.When completing, batches previous coil of strip, next coil of strip helps after several circles of volume, the upper surface of band is transferred and be pressed against to coiler press-roller 3, rising along with reeler speed, increasing of coiler mandrel 1 band, coiler press-roller 3 can tightly press and float and slowly lift, and the power that coiler press-roller 3 is pressed on band can regulate according to actual needs.When the complete preparation of strip coiling on reeler finishes up, the end rotation of band, to suitable position, now needs coiler press-roller 3 to lift fast, and then coil stripping car unloads volume.
For realizing the several functions of coiler press-roller, the present embodiment provides a kind of pneumatic control system that realizes several functions for coiler press-roller, and the element of this pneumatic control system as shown in Figure 2.
Described pneumatic control system has complete Pneumatic control circuit, and acts on coiler press-roller 3.This Pneumatic control circuit is divided into the first pneumatic branch, the second pneumatic branch and the 3rd pneumatic branch through pneumatic triple piece 5.Before pneumatic triple piece 5, a ball valve 4 is also installed on this Pneumatic control circuit.
The pressurized air of the first pneumatic branch first connects first reducing valve 6, and then through the two electric control reversing valves 7 of two five-ways, from the two electric control reversing valves 7 of two five-ways, out there are 2 pressure gas ports, be denoted as respectively A1, B1, block A1 pressure gas port, the R1 exhausr port of a 3 position-5 way Pneumatic reversal valve 9 of B1 pressure gas port access is installed a noise silencer 12 at the R2 exhausr port of the two electric control reversing valves 7 of two five-ways simultaneously.
The pressurized air of the second pneumatic branch connects the two electric control reversing valves 8 of a 3 position-5 way, from the two electric control reversing valves 8 of 3 position-5 way, out there are 2 pressure gas ports, be denoted as respectively A2, B2, these two pressure gas ports connect respectively PA admission port and the PB admission port of 3 position-5 way Pneumatic reversal valve 9.Meanwhile, at R1 exhausr port and the R2 exhausr port of the two electric control reversing valves 8 of 3 position-5 way, a noise silencer 12 is respectively installed, at the R2 of 3 position-5 way Pneumatic reversal valve 9 exhausr port, a noise silencer 12 is installed.
The pressurized air of the 3rd branch road is first by second reducing valve 13, and then the P admission port of access 3 position-5 way Pneumatic reversal valve 9.Finally, the pressurized air of the first pneumatic branch and the 3rd pneumatic branch is through 3 position-5 way Pneumatic reversal valve 9, from the A3 pressure gas port of 3 position-5 way Pneumatic reversal valve 9, be respectively connected an one-way throttle valve 10 with B3 pressure gas port, and be communicated to two chambeies of pressure roller cylinder 2, and increase a by pass valve 11 in the loop, bar chamber of pressure roller cylinder 2, to prevent the increased pressure in this chamber.
Embodiment 2:
On the basis of embodiment 1, and by reference to the accompanying drawings 2, according to the strip coiling stage on reeler, pneumatic control system of the present invention is realized to putting down, compress to float and lift a plurality of functions and describing of coiler press-roller 3.
When completing, batches previous coil of strip, next coil of strip helps after several circles of volume, coiler press-roller 3 puts down, and now needs the normal phase energising of right side electromagnet YB1b to the two electric control reversing valves 8 of 3 position-5 way, the instantaneous energising of left side electromagnet YB1c of two two electric control reversing valves 7 of five-way.Left side electromagnet YB1c energising when right side electromagnet YB1b and two two electric control reversing valves 7 of five-way of the two electric control reversing valves 8 of 3 position-5 way, the two electric control reversing valves 8 of 3 position-5 way change to location right, the pressurized air of the second pneumatic branch passes to the PB gas control mouth on 3 position-5 way Pneumatic reversal valve 9 right sides through the two electric control reversing valves 8 of 3 position-5 way, then from the left side PA admission port of 3 position-5 way Pneumatic reversal valve 9, through the two electric control reversing valves 8 of 3 position-5 way, drain into atmosphere.Now, the pressurized air of the 3rd pneumatic branch just can be communicated to through 3 position-5 way Pneumatic reversal valve 9 the bar chamber of pressure roller cylinder 2, the pressurized air of the rodless cavity of pressure roller cylinder 2 passes to the two electric control reversing valves 7 of two five-ways through 3 position-5 way Pneumatic reversal valve 9, and enters atmosphere from being arranged on the noise silencer 12 of the two electric control reversing valves 7 of two five-ways.
Rising along with reeler speed, increasing of coiler mandrel 1 band, require coiler press-roller 3 tightly to press and to float and slowly lift, now need the normal phase energising of right side electromagnet YB1b to the two electric control reversing valves 8 of 3 position-5 way, the instantaneous energising of right side electromagnet YB1d of two two electric control reversing valves 7 of five-way.During the instantaneous energising of right side electromagnet YB1d of the two electric control reversing valves 7 of two five-ways, the pressurized air of the first pneumatic branch just can pass to the bar chamber of pressure roller cylinder 2, by regulating the first reducing valve 6 of the first pneumatic branch and the pressure of the second reducing valve 13 in the 3rd pneumatic branch, just can to realize adjusting coiler press-roller 3, press the power of band by changing the pressure in 2 liang of chambeies of pressure roller cylinder; In the process that coiler press-roller 3 slowly lifts, the bar cavity pressure of pressure roller cylinder 2 increases, when pressure reaches setting pressure, just from by pass valve 11 releases of pressure in bar chamber.
When the complete preparation of strip coiling on reeler finishes up, the end rotation of band, to suitable position, need to lift coiler press-roller 3 fast, now needs the normal phase energising of left side electromagnet YB1a to the two electric control reversing valves 8 of 3 position-5 way.When the left side electromagnet YB1a of the two electric control reversing valves 8 of 3 position-5 way energising, the two electric control reversing valves 8 of 3 position-5 way change to left position, the pressurized air of the second pneumatic branch passes to the PA gas control mouth in 3 position-5 way Pneumatic reversal valve 9 left sides through the two electric control reversing valves 8 of 3 position-5 way, then from the right side PB gas control mouth of 3 position-5 way Pneumatic reversal valve 9, through the two electric control reversing valves 8 of 3 position-5 way, drain into atmosphere, now the pressurized air of the 3rd pneumatic branch just can pass to through 3 position-5 way Pneumatic reversal valve 9 rodless cavity of pressure roller cylinder 2, the pressurized air in bar chamber is discharged through the R2 of 3 position-5 way Pneumatic reversal valve 9 exhausr port.
In order to regulate the work speed of pressure roller cylinder 2, in the gas circuit between two interfaces of 3 position-5 way Pneumatic reversal valve 9 and pressure roller cylinder 2, an one-way throttle valve 10 is respectively installed.
For preventing that cylinder from pressing and floating in the process of lifting at coiler press-roller 3, the pressure of pressure roller cylinder 2 increases, special at a by pass valve 11 of pressure roller cylinder 2 rod chamber gas port places increases.
In conjunction with above-described embodiment, can find out, Pneumatic control circuit of the present invention is divided into the first pneumatic branch, the second pneumatic branch and the 3rd pneumatic branch through a pneumatic triple piece, each pneumatic branch connects different change-over valves, by controlling the "on" position of the electromagnet in change-over valve, realize pressure gas control pressure roller cylinder, thereby realize a plurality of functions such as the compression that pressure roller puts down, pressure roller increases with coiler mandrel band of coiler press-roller is floated and pressure roller lifts.Particularly the present invention has adopted 3 position-5 way Pneumatic reversal valve 9, and the turnover direction of each gas port of this change-over valve is two-way, both can be from this gas port air inlet, and also can be from this gas port exhaust.From each element of pneumatic control system of the present invention, described pneumatic control system easy to adjust, and reliable operation, the job requirements in the time of can meeting reeler high-speed wind-up tin plate.
By reference to the accompanying drawings embodiments of the present invention are described above, but the present invention is not limited to above-mentioned embodiment, in the ken that one skilled in the relevant art possesses, can also under the prerequisite that does not depart from aim of the present invention, makes a variety of changes.
Claims (10)
1. for a pneumatic control system for coiler press-roller, comprise Pneumatic control circuit, it is characterized in that, described Pneumatic control circuit is divided into the first pneumatic branch, the second pneumatic branch and the 3rd pneumatic branch through pneumatic triple piece (5);
In described the first pneumatic branch, be connected with the first reducing valve (6) and two two electric control reversing valves (7) of five-way in turn;
In described the second pneumatic branch, be connected with the two electric control reversing valves (8) of 3 position-5 way;
In described the 3rd pneumatic branch, be connected with the second reducing valve (13);
The two electric control reversing valves (7) of described two five-ways, the two electric control reversing valves (8) of 3 position-5 way are all connected with same 3 position-5 way Pneumatic reversal valve (9) with the second reducing valve (13);
Described 3 position-5 way Pneumatic reversal valve (9) is connected with the pressure roller cylinder (2) of reeler.
2. the pneumatic control system for coiler press-roller according to claim 1, is characterized in that, a ball valve (4) is also installed in the Pneumatic control circuit of pneumatic triple piece (5) upstream.
3. the pneumatic control system for coiler press-roller according to claim 1, it is characterized in that, the two electric control reversing valves (7) of described two five-ways have two pressure gas ports, one of them pressure gas port is installed plug, and another pressure gas port is connected with the exhausr port of 3 position-5 way Pneumatic reversal valve (9).
4. the pneumatic control system for coiler press-roller according to claim 1, it is characterized in that, the two electric control reversing valves (8) of described 3 position-5 way have two pressure gas ports, and two pressure gas ports of the two electric control reversing valves (8) of 3 position-5 way are connected with two control gas ports of 3 position-5 way Pneumatic reversal valve (9) respectively.
5. the pneumatic control system for coiler press-roller according to claim 1, is characterized in that, the air extractor duct of described the second reducing valve (13) is connected with the admission port of 3 position-5 way Pneumatic reversal valve (9).
6. the pneumatic control system for coiler press-roller according to claim 1, it is characterized in that, described 3 position-5 way Pneumatic reversal valve (9) has two pressure gas ports, and two pressure gas ports of 3 position-5 way Pneumatic reversal valve (9) respectively connect an one-way throttle valve (10); Described two one-way throttle valves (10) are connected with two chambeies of pressure roller cylinder (2) respectively.
7. the pneumatic control system for coiler press-roller according to claim 1, is characterized in that, the bar chamber interface of described pressure roller cylinder (2) is provided with by pass valve (11).
8. according to the pneumatic control system for coiler press-roller described in claim 1 to 7 any one, it is characterized in that an exhausr port in two electric control reversing valve (7) exhausr ports of described two five-ways fix a silencer (12); Two exhausr ports in two electric control reversing valve (8) exhausr ports of 3 position-5 way are respectively installed a noise silencer (12); An exhausr port in 3 position-5 way Pneumatic reversal valve (9) exhausr port fix a silencer (12).
9. the pneumatic control system for coiler press-roller according to claim 1, is characterized in that, each gas port turnover direction of described 3 position-5 way Pneumatic reversal valve (9) is two-way.
10. adopt the pneumatic control system for coiler press-roller claimed in claim 1 to carry out pneumatic control method, it is characterized in that, according to the strip coiling stage on reeler, this pneumatic control method is described below:
When previous coil of strip completes, batch, next coil of strip helps after several circles of volume, and coiler press-roller (3) puts down, and now the right side electromagnet of the two electric control reversing valves (8) of 3 position-5 way continues energising, the instantaneous energising of left side electromagnet of two two electric control reversing valves (7) of five-way;
When the left side electromagnet energising of right side electromagnet and two two electric control reversing valves (7) of five-way of the two electric control reversing valves (8) of 3 position-5 way, the two electric control reversing valves (8) of 3 position-5 way change to location right; The pressurized air of the second pneumatic branch is communicated to the gas control mouth on 3 position-5 way Pneumatic reversal valve (9) right side through the two electric control reversing valves (8) of 3 position-5 way, then from the left side gas control mouth of 3 position-5 way Pneumatic reversal valve (9), through the two electric control reversing valves (8) of 3 position-5 way, drain into atmosphere; Now the pressurized air of the 3rd pneumatic branch is communicated to the bar chamber of pressure roller cylinder (2) through 3 position-5 way Pneumatic reversal valve (9), the pressurized air of pressure roller cylinder (2) rodless cavity is communicated to the two electric control reversing valves (7) of two five-ways through 3 position-5 way Pneumatic reversal valve (9), and discharges from the exhausr port of the two electric control reversing valves (7) of two five-ways;
Rising along with reeler speed, increasing of coiler mandrel (1) band, require coiler press-roller (3) tightly press band and float and lift, now the right side electromagnet of the two electric control reversing valves (8) of 3 position-5 way continues energising, the instantaneous energising of right side electromagnet of two two electric control reversing valves (7) of five-way;
When the instantaneous energising of right side electromagnet of the two electric control reversing valves (7) of two five-ways, the compressed air communication of the first pneumatic branch is to the bar chamber of pressure roller cylinder (2), regulate the pressure of first reducing valve (6) of the first pneumatic branch and second reducing valve (13) of the 3rd pneumatic branch, thereby control the pressure that pressure roller cylinder (2) presses band, coiler press-roller (3) presses band and floats and lift;
When the complete preparation of strip coiling on reeler finishes up, coiler press-roller (3) need to be lifted fast, now the left side electromagnet of the two electric control reversing valves (8) of 3 position-5 way continues energising;
When the electromagnet energising of the left side of the two electric control reversing valves (8) of 3 position-5 way, the two electric control reversing valves (8) of 3 position-5 way change to left position, the pressurized air of the second pneumatic branch is communicated with the gas control mouth in 3 position-5 way Pneumatic reversal valve (9) left side through the two electric control reversing valves (8) of 3 position-5 way, then from the right side gas port of 3 position-5 way Pneumatic reversal valve (9), through the two electric control reversing valves (8) of 3 position-5 way, drains into atmosphere; Now the pressurized air of the 3rd pneumatic branch is communicated to the rodless cavity of pressure roller cylinder (2) through 3 position-5 way Pneumatic reversal valve (9), and the pressurized air of pressure roller cylinder (2) rod chamber is discharged through the exhausr port of 3 position-5 way Pneumatic reversal valve (9).
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| CN201410287858.0A CN104085726B (en) | 2014-06-25 | 2014-06-25 | A kind of pneumatic control system for coiler press-roller and method |
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| CN201410287858.0A CN104085726B (en) | 2014-06-25 | 2014-06-25 | A kind of pneumatic control system for coiler press-roller and method |
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| CN107559248A (en) * | 2016-06-30 | 2018-01-09 | 天津市汇点机电设备开发有限公司 | A kind of cylinder reaction application system application method |
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| CN104085726B (en) | 2016-06-01 |
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