CN206017285U - Stretching-machine stretches the hydraulic control circuit of hydraulic cylinder - Google Patents
Stretching-machine stretches the hydraulic control circuit of hydraulic cylinder Download PDFInfo
- Publication number
- CN206017285U CN206017285U CN201620870987.7U CN201620870987U CN206017285U CN 206017285 U CN206017285 U CN 206017285U CN 201620870987 U CN201620870987 U CN 201620870987U CN 206017285 U CN206017285 U CN 206017285U
- Authority
- CN
- China
- Prior art keywords
- valve
- hydraulic
- stretching
- cover
- plate type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
This utility model discloses the hydraulic control circuit that a kind of stretching-machine stretches hydraulic cylinder, which includes stretching hydraulic cylinder, hydraulic oil source, the first accumulator, cover-plate type check valve C, servo valve 5, cover-plate type check valve B are disposed with pipeline between the plunger shaft of hydraulic oil source and stretching hydraulic cylinder, servo valve is connected with the first accumulator, the A hydraulic fluid ports of solenoid directional control valve X hydraulic fluid ports respectively with cover-plate type check valve B, the X hydraulic fluid ports of cover-plate type check valve C are connected, and the T hydraulic fluid ports of solenoid directional control valve are connected with total oil return line O；The actuator port B1 of shuttle valve is connected to the entrance of the A hydraulic fluid ports and the first accumulator of cover-plate type check valve C, and the control port K1 of shuttle valve is connected with the hydraulic fluid port P of solenoid directional control valve, and the actuator port A1 of shuttle valve is connected with the A hydraulic fluid ports of cover-plate type check valve B.This utility model can realize that band elongation control is accurate, and stable, feeding non-cutting time greatly shortens, and ensure that the quality of band, improve production efficiency of equipment.
Description
Technical field
This utility model belongs to plate stretch equipment control technology field, stretches hydraulic cylinder more particularly, to a kind of stretching-machine
Hydraulic control circuit.
Background technology
In non-ferrous metals processing industry, strip stretching-machine is strip equipment for straightening, dedicated for aluminium and aluminium alloy sheet and strip
Tension straingtening technique, stretched by being curved aligning and strength to band, to eliminate the internal stress of band, improved straight
Degree, obtains high-quality, high performance pre-stretching aluminium sheet.Stretching hydraulic cylinder is mainly used to the drawing work for completing stretching-machine, works as drawing
After the completion of stretching, the piston for stretching hydraulic cylinder passively returns to home position in feeding, in the process, stretches the piston of hydraulic cylinder
It is actively to stretch out passively to retract, it is that hydraulic oil promotes piston driving active chuck and stretching to expect that entirety is stretched out actively to stretch out, and stretches out
Stroke accuracy be exactly stretching material elongation percentage precision, elongation percentage precision directly affects the quality of band；Passive retraction speed
Speed directly affects feeding non-cutting time, and long-play can cause device efficiency low.
Content of the invention
For solving the above problems, the purpose of this utility model is to provide a kind of hydraulic control of stretching-machine stretching hydraulic cylinder and returns
Road.
For achieving the above object, this utility model is adopted the following technical scheme that：
A kind of stretching-machine stretches the hydraulic control circuit of hydraulic cylinder, and which includes stretching hydraulic cylinder, hydraulic oil source, the first accumulation of energy
Device, hydraulic oil source and stretching hydraulic cylinder plunger shaft connected by pipeline, and with stretching hydraulic cylinder between pipeline on set successively
Cover-plate type check valve C, servo valve 5, cover-plate type check valve B is equipped with, servo valve is connected with the first accumulator, the A of solenoid directional control valve
Hydraulic fluid port X hydraulic fluid ports respectively with cover-plate type check valve B, the X hydraulic fluid ports of cover-plate type check valve C are connected, T hydraulic fluid ports of solenoid directional control valve and total
Oil return line O is connected；The actuator port B1 of shuttle valve is connected to the entrance of the A hydraulic fluid ports and the first accumulator of cover-plate type check valve C, shuttle valve
Control port K1 be connected with the hydraulic fluid port P of solenoid directional control valve, the A hydraulic fluid port phases of the actuator port A1 of shuttle valve and cover-plate type check valve B
Even；Replenishing valve is provided with pipeline between the plunger shaft of stretching hydraulic cylinder and total oil return line T.
Described stretching-machine stretches the hydraulic control circuit of hydraulic cylinder, the outside control mouth X and the first accumulator of its servo valve 5 it
Between pipeline on be connected with check valve, high pressure filter and air relief valve in turn.
Described stretching-machine stretches the hydraulic control circuit of hydraulic cylinder, between its cover-plate type check valve B and total oil return line O
No leakage solenoid directional control valve is provided with pipeline.
Described stretching-machine stretches the hydraulic control circuit of hydraulic cylinder, and which is stretched between hydraulic cylinder and cover-plate type check valve B
Pipeline on be provided with pressure transducer.
There is following superiority due to adopting technical scheme as above, this utility model：
The stretching-machine stretches the hydraulic control circuit of hydraulic cylinder, and its simple structure is reasonable in design compact, safe and reliable, fortune
Row is stable, low cost, in actual production process, can realize that band elongation control is accurate, stable；Stretching hydraulic cylinder
Piston can be retracted to rapidly home position, and oil return resistance very little, feeding non-cutting time are greatly shortened, and ensure that the matter of band
Amount, improves production efficiency of equipment.
Description of the drawings
Fig. 1 is the schematic diagram of the hydraulic control circuit of this utility model stretching-machine stretching hydraulic cylinder；
In figure：1- air relief valve；2- high pressure filters；3- check valves；4- cover-plate type check valve A；5- servo valves；6-
No leakage solenoid directional control valve；7- replenishing valves；8- active chucks；9- stretches hydraulic cylinder；10- pressure transducers；11- cover plates
Formula check valve B；12- cover-plate type check valve C；13- solenoid directional control valves；14- shuttle valves；The first accumulators of 15-；16- second stores
Can device；The 3rd accumulators of 17-；18- relief valve A；19- throttling stop valves；20- relief valve B.
Specific embodiment
The technical solution of the utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, this utility model stretching-machine stretch hydraulic cylinder hydraulic control circuit, it include stretch hydraulic cylinder 9,
Hydraulic oil source P01 and the first accumulator 15, hydraulic oil source P01 and stretching hydraulic cylinder 9 plunger shaft connected by pipeline, and with drawing
Stretch and on the pipeline between hydraulic cylinder, be disposed with cover-plate type check valve C 12, servo valve 5, cover-plate type check valve B 11, stretch
Pressure transducer 10, the oil-feed port P connections of servo valve 5 is provided with pipeline between hydraulic cylinder 9 and cover-plate type check valve B 11
There are cover-plate type check valve C 12, relief valve A 18, the first accumulator 15；The oil return inlet T of servo valve 5 is connected with cover-plate type check valve
A 4, the second accumulator 16, the control port A of servo valve 5 be connected with cover-plate type check valve B 11, No leakage solenoid directional control valve 6,
Replenishing valve 7, the plunger shaft of stretching hydraulic cylinder 9；The A hydraulic fluid ports of solenoid directional control valve 13 X hydraulic fluid ports respectively with cover-plate type check valve B 11,
The X hydraulic fluid ports of cover-plate type check valve C12 are connected, and the T hydraulic fluid ports of solenoid directional control valve 13 are connected with total oil return line O；The working oil of shuttle valve 14
Mouth B1 is connected to the entrance of the A hydraulic fluid ports and the first accumulator 15 of cover-plate type check valve C 12, the control port K1 of shuttle valve 14 and electricity
The hydraulic fluid port P of magnetic reversal valve 13 is connected, and the actuator port A1 of shuttle valve 14 is connected with the A hydraulic fluid ports of cover-plate type check valve B 11, cover-plate type
The A hydraulic fluid ports of check valve B 11 are connected with the plunger shaft of stretching hydraulic cylinder 9.
In the hydraulic control circuit of above-mentioned stretching-machine stretching hydraulic cylinder, the outside control mouth X of servo valve 5 and the first accumulator 15
Between pipeline on be connected with check valve 3, high pressure filter 2 and air relief valve 1, the outside control mouth X and relief valve B of servo valve 5 in turn
20th, the 3rd accumulator 17 connects, it is ensured that the outside control mouth X oil sources of servo valve 5 is stable.
In the hydraulic control circuit of above-mentioned stretching-machine stretching hydraulic cylinder, cover-plate type check valve B 11 and total oil return line O it
Between pipeline on be provided with No leakage solenoid directional control valve 6, the A hydraulic fluid ports of No leakage solenoid directional control valve 6 are connected with total oil return line O, nothing
The P hydraulic fluid ports of leakage solenoid directional control valve 6 are connected with the A hydraulic fluid ports of cover-plate type check valve B 11.
In the hydraulic control circuit of above-mentioned stretching-machine stretching hydraulic cylinder, the plunger shaft of hydraulic cylinder and total oil return line T is stretched
Between pipeline on be provided with replenishing valve 7, the A hydraulic fluid ports of replenishing valve 7 and total oil return line T-phase connect, the X hydraulic fluid ports of replenishing valve and oil sources
P02 is connected, and the B hydraulic fluid ports of replenishing valve are connected with the plunger shaft of stretching hydraulic cylinder 9.
Stretch out in the piston of stretching hydraulic cylinder 9（Stretching）During, replenishing valve 7 is to cut out（Power-off）, that is, stretch hydraulic pressure
Fluid in cylinder can not reach total oil return line T by the A hydraulic fluid ports of replenishing valve；Retract in the piston of stretching hydraulic cylinder 9（Feeding）Cross
Cheng Zhong, replenishing valve 7 are to open（Powered）, i.e., the fluid in stretching hydraulic cylinder can reach total oil return by the A hydraulic fluid ports of replenishing valve
Road T.
During the piston of stretching hydraulic cylinder 9 is extended and retracted, plug-in solenoid directional control valve 6 is to cut out（Power-off）
, i.e., the fluid in stretching-machine stretching hydraulic cylinder 9 can not pass through the A mouths of plug-in solenoid directional control valve 6.
When servo valve 5 does not need work, the oil for entering stretching hydraulic cylinder 9 is closed by shuttle valve 14 and solenoid directional control valve 13
Liquid.
Operation principle of the present utility model：When the piston of stretching hydraulic cylinder 9 stretches out（Stretching）When, as long as control servo valve 5
P to A hydraulic fluid ports connect, 13 powered A to T mouths of solenoid directional control valve, P to B mouths oil circuit connection, cover-plate type check valve B 11, cover-plate type
Check valve C 12 is opened, and No leakage solenoid directional control valve 6 cuts out（Power-off）, replenishing valve 7 cuts out（Power-off）, from hydraulic oil source P01
Hydraulic oil pass through through the first accumulator A 15 and cover-plate type check valve C 12, servo valve 5, cover-plate type check valve B 11
The plunger shaft for entering stretching hydraulic cylinder 9 drives active chuck 8 to move right, and active chuck is clamped band and integrally moves right to draw
Band is stretched, when band elongation percentage reaches requirement, off-load completes drawing process.
When the piston of stretching hydraulic cylinder 9 is retracted（Feeding）When, replenishing valve 7 is powered, the equal power-off of other each valves；Due to stretching liquid
Cylinder pressure 9 is without rod end chamber, it is impossible to actively returns, passively can only retract, i.e., the plunger shaft of stretching hydraulic cylinder 9 must oil extraction, draw
The piston for stretching hydraulic cylinder 9 can just return to home position.The fluid of the plunger shaft of stretching hydraulic cylinder 9 is discharged to loop by replenishing valve 7
Total oil return T, as 7 flow of replenishing valve is sufficiently large, oil extraction is smooth, the back pressure very little that oil return is produced, and stretching hydraulic cylinder piston is retracted
Rapid to home position.
Preferred embodiment of the present utility model is the foregoing is only, rather than to restriction of the present utility model, without departing from this
In the case of the spirit and scope of utility model, all impartial changes that is made according to this utility model claim and modification,
Should all belong within scope of patent protection of the present utility model.
Claims (4)
1. a kind of stretching-machine stretches the hydraulic control circuit of hydraulic cylinder, it is characterized in that：It include stretch hydraulic cylinder, hydraulic oil source,
First accumulator, hydraulic oil source and stretching hydraulic cylinder plunger shaft connected by pipeline, and with stretching hydraulic cylinder between pipeline
On be disposed with cover-plate type check valve C, servo valve 5, cover-plate type check valve B, servo valve is connected with the first accumulator, and electromagnetism is changed
The X hydraulic fluid ports of A hydraulic fluid ports X hydraulic fluid ports respectively with cover-plate type check valve B, cover-plate type check valve C to valve are connected, the T of solenoid directional control valve
Hydraulic fluid port is connected with total oil return line O；The actuator port B1 of shuttle valve is connected to the A hydraulic fluid ports and the first accumulator of cover-plate type check valve C
Entrance, the control port K1 of shuttle valve are connected with the hydraulic fluid port P of solenoid directional control valve, the actuator port A1 of shuttle valve and cover-plate type check valve B
A hydraulic fluid ports be connected；Replenishing valve is provided with pipeline between the plunger shaft of stretching hydraulic cylinder and total oil return line T.
2. stretching-machine according to claim 1 stretches the hydraulic control circuit of hydraulic cylinder, it is characterized in that：Its servo valve 5
It is connected with check valve, high pressure filter and air relief valve on pipeline between outside control mouth X and the first accumulator in turn.
3. stretching-machine according to claim 1 stretches the hydraulic control circuit of hydraulic cylinder, it is characterized in that：Its cover-plate type is unidirectional
No leakage solenoid directional control valve is provided with pipeline between valve B and total oil return line O.
4. stretching-machine according to claim 1 stretches the hydraulic control circuit of hydraulic cylinder, it is characterized in that：Which stretches hydraulic cylinder
Pressure transducer is provided with the pipeline between cover-plate type check valve B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870987.7U CN206017285U (en) | 2016-08-12 | 2016-08-12 | Stretching-machine stretches the hydraulic control circuit of hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620870987.7U CN206017285U (en) | 2016-08-12 | 2016-08-12 | Stretching-machine stretches the hydraulic control circuit of hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206017285U true CN206017285U (en) | 2017-03-15 |
Family
ID=58247999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620870987.7U Active CN206017285U (en) | 2016-08-12 | 2016-08-12 | Stretching-machine stretches the hydraulic control circuit of hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206017285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026865A (en) * | 2018-09-30 | 2018-12-18 | 中色科技股份有限公司 | Hydraulic control loop of stretcher jacking device |
| CN113944660A (en) * | 2021-10-08 | 2022-01-18 | 桂林理工大学 | Automatic brake device of hydraulic stretcher, hydraulic stretcher and brake method |
-
2016
- 2016-08-12 CN CN201620870987.7U patent/CN206017285U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109026865A (en) * | 2018-09-30 | 2018-12-18 | 中色科技股份有限公司 | Hydraulic control loop of stretcher jacking device |
| CN113944660A (en) * | 2021-10-08 | 2022-01-18 | 桂林理工大学 | Automatic brake device of hydraulic stretcher, hydraulic stretcher and brake method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104948538B (en) | The servo hydraulic system and its construction method of a kind of plate bending machine | |
| CN206017285U (en) | Stretching-machine stretches the hydraulic control circuit of hydraulic cylinder | |
| CN204739038U (en) | Servo hydraulic system of sheet material bender | |
| CN101463846B (en) | Hydraulic system of full-hydraulic metal sheet straightener | |
| CN203879827U (en) | Servo drive hydraulic system | |
| CN103867524B (en) | A kind of double-action two-stage hydraulic cylinder | |
| CN203495630U (en) | Hydraulic driving type clamping device | |
| CN105234314A (en) | Foundation bolt forming machine | |
| CN205918969U (en) | Gear pump control formula electro -hydraulic linkage actuating mechanism | |
| CN203889960U (en) | Hydraulic system of telescopic boom of straight-arm-type lorry-mounted crane | |
| CN105414400B (en) | A kind of foundation bolt production line | |
| CN107091253A (en) | A kind of hydraulic pressure performs equipment | |
| CN202387725U (en) | Hydraulic control loop of ironing roller device | |
| CN207825548U (en) | A kind of hydraulic press | |
| CN103538224A (en) | Mould closing apparatus of two-plate vertical compression type injection molding machine | |
| CN104227474A (en) | Pneumatic clamp for broaching of butterfly valve | |
| CN207145665U (en) | A kind of guide's oil circuit controls switching valve | |
| CN206035929U (en) | Large -scale plate shearing machine hydraulic control system | |
| CN203189378U (en) | Transverse clamping cylinder | |
| CN105414413B (en) | A kind of forming method of foundation bolt | |
| CN208997055U (en) | A kind of Feedback Oil accurate positioning stabilization control device of hydraulic cylinder | |
| CN202543930U (en) | Piling return control system of static piling machine | |
| CN203754267U (en) | Multitandem valve for crane | |
| CN206246437U (en) | Novel gas-liquid mattress system | |
| CN203685721U (en) | Rotation control system of manipulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |