CN207212795U - One kind applying glue machine hydraulic system - Google Patents
One kind applying glue machine hydraulic system Download PDFInfo
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- CN207212795U CN207212795U CN201720614771.9U CN201720614771U CN207212795U CN 207212795 U CN207212795 U CN 207212795U CN 201720614771 U CN201720614771 U CN 201720614771U CN 207212795 U CN207212795 U CN 207212795U
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- applying glue
- oil
- valve
- hydraulic
- oil circuit
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Abstract
It the utility model is related to a kind of applying glue machine hydraulic system, belong to sizing applicator apparatus field, include in-line successively according to the flow direction of hydraulic oil, it is glued oil circuit and return line, in-line is connected in parallel to two applying glue oil circuits, applying glue oil circuit is connected with return line, include accumulator and hydraulic cylinder successively in each applying glue oil circuit, two balanced valves are provided between applying glue oil circuit in parallel, balanced valve is arranged at accumulator front end, hydraulic oil in one of balanced valve from the applying glue oil circuit of parallel connection this effluent to opposite side, hydraulic oil in another balanced valve opposite side from the applying glue oil circuit of parallel connection flows to this side.The utility model by parallel connection applying glue oil circuit between set up balanced valve with automatically adjust rapidly increase hydraulic oil flow; so that hydraulic oil flows to the small side of pressure from the big side of pressure; again pressure at both sides can be kept to balance without shutting down replacing overflow valve so as to reach; disconnected paper and nonscheduled down time are reduced, improves production efficiency.
Description
Technical field
A kind of applying glue machine hydraulic system is the utility model is related to, belongs to sizing applicator apparatus field.
Background technology
Top sizing refers to the glue of emulsification continuously, uniformly, being stably coated in into paper surface, by infiltrating, permeating
The a series of physical actions such as extruding, one layer of thinly waterproof layer is being formed into the surface of paper, is increasing substantially the water suction of paper
Property, while bond strength and the tightness of paper between raising fiber in the presence of glue, so as to improve the lateral loops of paper
Press the technical indicators such as index, longitudinal fracture length.Due to sizing applicator by application roll to being glued into paper surface, and it is glued
The pressure of roller be by sizing applicator HYDRAULIC CONTROL SYSTEM, therefore the stability of the hydraulic system of sizing applicator into paper qualitative effects very
Greatly.Hydraulic system is made up of five parts, i.e. dynamical element, executive component, control element, auxiliary element and hydraulic oil, power
Element is oil pump, and executive component is hydraulic cylinder and hydraulic motor, and control element is various hydraulic valves, auxiliary element include fuel tank,
The original papers such as accumulator, pressure gauge, oil level indicator, hydraulic oil are responsible for transmitting energy.
A kind of hydraulic control system of sizing applicator is disclosed in Chinese utility model patent specification CN204253468U, this
Kind of hydraulic control system includes hydraulic oil container, hydraulic pump, hydraulic jack and PLC, in addition to hydraulic valve bank, accumulator and
Pressure sensor, the hydraulic valve bank include ball valve, check valve, solenoid directional control valve, pilot operated compound relief valve, one-way throttle valve.Though
The right utility model hydraulic control system is capable of the requirement that the output pressure of adjust automatically hydraulic jack meets to reach, and makes application
To the pressure remained steady at application roll both ends, to improve the quality of paper for surface sizing, and then the performance of finished paper can be improved,
But its pressure control structure is excessively complicated, if there is unilateral fluctuation situation using sizing applicator hydraulic station pressure, applying glue is influenceed
Quality, then need to stop sizing applicator hydraulic station and change overflow valve to reach new pressure balance, can so influence work effect
Rate and manufacturing schedule.
Utility model content
The utility model makes improvement for the above-mentioned problems of the prior art, i.e., technology to be solved in the utility model
Problem is to provide a kind of applying glue machine hydraulic system, by setting up balanced valve between the applying glue oil circuit of parallel connection, when pressure at both sides not
During balance, balanced valve can automatically adjust the flow of increase hydraulic oil rapidly so that hydraulic oil flows to pressure from the big side of pressure
The small side of power, overflow valve is changed so as to reach not having to shut down, disconnected paper and nonscheduled down time is reduced, improves production efficiency；
By setting valve group before oil circuit is glued, more than pressure limitation hydraulic oil in the presence of the piloted reducer of valve group
It flow in return line to be depressurized to whole system, pressurize；Pass through the setting of shuttle valve so that hydraulic oil can be directly entered and apply
Glue oil circuit enters back into applying glue oil circuit after flowing through valve group.
In order to solve the above technical problems, technical scheme is to provide a kind of sizing applicator hydraulic pressure system used by the utility model
System, include in-line, applying glue oil circuit and return line, the in-line successively according to the flow direction of hydraulic oil and be connected in parallel
There are two applying glue oil circuits, the applying glue oil circuit is connected with return line, includes accumulator successively in each applying glue oil circuit
And hydraulic cylinder, two balanced valves are provided between the applying glue oil circuit in parallel, the balanced valve is arranged at accumulator front end,
The balanced valve is one-way overflow valve, this effluent from the applying glue oil circuit of parallel connection of the hydraulic oil in one of them described balanced valve
To opposite side, hydraulic oil in another the described balanced valve opposite side from the applying glue oil circuit of parallel connection flows to this side.Due to flat
Weighing apparatus valve may cause load drastic change, impulsive force caused by this drastic change during pressure at both sides is adjusted due to sudden stoppage
Hydraulic cylinder may be damaged, so setting accumulator to respond rapidly before hydraulic cylinder, so as to effectively relax surge protection hydraulic pressure
Cylinder, and when whole system pressure reaches to a certain degree, hydraulic pump is stopped, and accumulator can absorb unnecessary energy and deposit
Storage is got up, and when system pressure is not high enough, accumulator can release energy, and pressure maintaining effect is carried out to system.
Preferably, on the in-line and the pipeline being glued between oil circuit according to running of hydraulic power oil direction successively
It is provided with direct acting pressure and the second solenoid directional control valve, the oil return opening of the direct acting pressure and the second solenoid directional control valve is equal
It is respectively connecting to return line.
Preferably, the applying glue oil circuit front end in parallel is respectively arranged with two shuttle valves, the shuttle valve front end connects respectively
The valve group of controllable hydraulic system pressure is connected to, the valve group is composed in parallel by check valve and piloted reducer, described
The oil return opening of piloted reducer is connected to return line.
Preferably, connected between the valve group front end and the in-line by the first solenoid directional control valve.
Preferably, connect between the hydraulic cylinder output end and the return line also by first solenoid directional control valve
Connect.
In a word, using a kind of applying glue machine hydraulic system of the present utility model, by being set up between the applying glue oil circuit of parallel connection
Balanced valve, when pressure at both sides imbalance, balanced valve can automatically adjust the flow of increase hydraulic oil rapidly so that hydraulic oil is from pressure
The big side of power flows to the small side of pressure, changes overflow valve so as to reach not having to shut down, reduces disconnected paper and non-programmed halt
Time, improve production efficiency；By setting valve group before oil circuit is glued, more than pressure limitation hydraulic oil valve group elder generation
It is flow in the presence of conduction pressure-reducing valve in return line to be depressurized to whole system, pressurize；Pass through the setting of shuttle valve so that
Hydraulic oil can be directly entered applying glue oil circuit or enter back into applying glue oil circuit after flowing through valve group.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples：
Fig. 1 is a kind of schematic diagram for being glued machine hydraulic system.
Wherein, in-line 1, return line 2, the first solenoid directional control valve 3, check valve 4, piloted reducer 5, balanced valve
6, accumulator 7, hydraulic cylinder 8, shuttle valve 9, direct acting pressure 10, the second solenoid directional control valve 11.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with the accompanying drawings, but be not limited to model of the present utility model
Enclose, other technical characteristics being not directed to refer to a kind of liquid of sizing applicator of Chinese utility model patent specification in the utility model
Pressure control system（CN204253468U）.
As shown in figure 1, the utility model provides a kind of applying glue machine hydraulic system, include successively according to the flow direction of hydraulic oil
In-line 1, applying glue oil circuit and return line 2, the in-line 1 are connected in parallel to two applying glue oil circuits, the applying glue oil
Road is connected with return line 2, includes accumulator 7 and hydraulic cylinder 8, the applying glue in parallel successively in each applying glue oil circuit
Two balanced valves 6 are provided between oil circuit, the balanced valve 6 is arranged at the front end of accumulator 7, and the balanced valve 6 overflows to be unidirectional
Flow valve, the hydraulic oil in one of them described balanced valve 6 from the applying glue oil circuit of parallel connection this effluent to opposite side, another institute
State the opposite side from the applying glue oil circuit of parallel connection of the hydraulic oil in balanced valve 6 and flow to this side, so as to quickly adjust applying glue oil circuit
There is the situation of pressure oscillation in both sides, keep the stabilization of applying glue oil circuit pressure at both sides, because balanced valve 6 is in regulation pressure at both sides
During may cause load drastic change due to sudden stoppage, impulsive force caused by this drastic change may damage hydraulic cylinder 8, institute
To set accumulator 7 to respond rapidly before hydraulic cylinder 8, so as to effectively relax surge protection hydraulic cylinder 8, and work as whole system
When pressure is reached to a certain degree, hydraulic pump is stopped, and accumulator 7 can absorb unnecessary energy and store, once system
When pressure is not high enough, accumulator 7 can be released energy, and pressure maintaining effect, the in-line 1 and the applying glue oil circuit are carried out to system
Between pipeline on according to running of hydraulic power oil direction be disposed with the solenoid directional control valve 11 of direct acting pressure 10 and second, it is described
Hydraulic oil enters applying glue oil circuit to carry after directly can flowing through the solenoid directional control valve 11 of direct acting pressure 10 and second from in-line
High flow efficiency, the oil return opening of the solenoid directional control valve 11 of direct acting pressure 10 and second are respectively connected to return line 2,
When valve element in the solenoid directional control valve 11 of direct acting pressure 10 and second senses that hydraulic fluid pressure is more than setting value, hydraulic pressure
Oil can promote spool position to be moved, and the hydraulic oil is flow back into return line 2 to be depressurized from oil return opening, maintainer
System pressure stability, the applying glue oil circuit front end in parallel are respectively arranged with two shuttle valves 9, and the shuttle valve 9 can be according to hydraulic oil
The size of pressure changes the position of valve element, and so as to change the oil-feed direction of hydraulic oil, the front end of shuttle valve 9 is connected to can be thick
The valve group of hydraulic system pressure is slightly controlled, the valve group is composed in parallel by check valve 4 and piloted reducer 5, the elder generation
The oil return opening of conduction pressure-reducing valve 5 is connected to return line, and the hydraulic oil can flow through the first solenoid directional control valve 3 and valve group is laggard
Enter to be glued oil circuit to adjust system pressure, if hydraulic fluid flow rate is smaller, only flows through check valve 4 and then enter in applying glue oil circuit, if
Hydraulic fluid flow rate is larger, then flows through piloted reducer 5 and adjust pressure by piloted reducer 5, and unnecessary hydraulic oil can be from
The oil return opening of piloted reducer 5 is entered in return line 2 to be depressurized, kept pressure, the valve group front end and institute
State and connected by the first solenoid directional control valve 3 between in-line 1, between the output end of hydraulic cylinder 8 and the return line 2
Connected by first solenoid directional control valve 3, if hydraulic system reaches stable state, in-line 1 and oil return pipe can be closed
Valve on road 2 is to cut off the source of hydraulic oil, from the output end output hydraulic pressure oil stream of hydraulic cylinder 8 through the first solenoid directional control valve
It will not enter after 3 in return line 2, but flow through again to valve group, into applying glue oil circuit, be exported again from hydraulic cylinder 8 afterwards
End output, to form the interior circulation of a hydraulic oil, so as to reduce energy consumption, when hydraulic system pressure is too small or it is stable to keep
When, the valve on the in-line 1 and return line 2 is reopened to supplement new hydraulic oil.
Working method：（1）Quick supplement hydraulic oil：Hydraulic oil constantly flows through the He of direct acting pressure 10 from in-line 1
It is directly entered after second solenoid directional control valve 11 in applying glue oil circuit, flow to again in return line 2 afterwards；（2）Regulating system pressure is put down
Weighing apparatus：Hydraulic oil enters valve group after constantly flowing through the first solenoid directional control valve 3 from in-line 1, hydraulic oil according to uninterrupted from
Dynamic selection flows through check valve 4 or piloted reducer 5 enters in applying glue oil circuit, flows through accumulator 7 and hydraulic cylinder enters back afterwards
Oil pipe line, the pressure of whole hydraulic system both sides are adjusted so as to similar in the presence of piloted reducer 5；（3）Regulation applying glue oil
Road pressure balance：When the both sides of parallel connection applying glue oil circuit only occur the situation of pressure oscillation, the spring in balanced valve 6 passes through sensing
To the pressure of hydraulic oil so as to promoting spool position to be changed so that it is small that hydraulic oil from the big side of pressure flows to pressure
Side is to keep the equal stabilization of pressure at both sides.
The beneficial effects of the utility model are：By setting up balanced valve between the applying glue oil circuit of parallel connection, work as pressure at both sides
When uneven, balanced valve can automatically adjust the flow of increase hydraulic oil rapidly so that hydraulic oil flows to from the big side of pressure
The small side of pressure, overflow valve is changed so as to reach not having to shut down, disconnected paper and nonscheduled down time is reduced, improves production effect
Rate；By setting valve group before oil circuit is glued, more than pressure limitation hydraulic oil valve group piloted reducer work
With downstream in return line to be depressurized to whole system, pressurize；Pass through the setting of shuttle valve so that hydraulic oil can directly enter
Enter to be glued oil circuit or enter back into applying glue oil circuit after flowing through valve group.
Claims (5)
1. one kind applying glue machine hydraulic system, include in-line, applying glue oil circuit and oil return pipe successively according to the flow direction of hydraulic oil
Road, the in-line are connected in parallel to two applying glue oil circuits, and the applying glue oil circuit is connected with return line, each applying glue
Include accumulator and hydraulic cylinder in oil circuit successively, it is characterised in that two are provided between the applying glue oil circuit in parallel and is put down
Weigh valve, and the balanced valve is arranged at accumulator front end, and the balanced valve is one-way overflow valve, in one of them described balanced valve
Hydraulic oil this effluent is to opposite side from the applying glue oil circuit of parallel connection, hydraulic oil in another described balanced valve is from parallel connection
Opposite side flows to this side in applying glue oil circuit.
2. a kind of applying glue machine hydraulic system according to claim 1, it is characterised in that the in-line and the applying glue oil
Direct acting pressure and the second solenoid directional control valve are disposed with according to running of hydraulic power oil direction on pipeline between road, it is described straight
The oil return opening of dynamic formula pressure-reducing valve and the second solenoid directional control valve is respectively connected to return line.
A kind of 3. applying glue machine hydraulic system according to claim 1, it is characterised in that the applying glue oil circuit front end in parallel point
Two shuttle valves are not provided with, and the shuttle valve front end is connected to the valve group of controllable hydraulic system pressure, the valve group
Composed in parallel by check valve and piloted reducer, the oil return opening of the piloted reducer is connected to return line.
4. a kind of applying glue machine hydraulic system according to claim 3, it is characterised in that the valve group front end and the oil-feed
Connected between pipeline by the first solenoid directional control valve.
5. a kind of applying glue machine hydraulic system according to claim 4, it is characterised in that the hydraulic cylinder output end and described time
Connected between oil pipe line also by first solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614771.9U CN207212795U (en) | 2017-05-27 | 2017-05-27 | One kind applying glue machine hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720614771.9U CN207212795U (en) | 2017-05-27 | 2017-05-27 | One kind applying glue machine hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212795U true CN207212795U (en) | 2018-04-10 |
Family
ID=61811205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720614771.9U Expired - Fee Related CN207212795U (en) | 2017-05-27 | 2017-05-27 | One kind applying glue machine hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212795U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368439A (en) * | 2018-08-29 | 2019-02-22 | 合肥市迅立达电梯有限公司 | A kind of hydraulic elevator |
| CN112576564A (en) * | 2020-11-26 | 2021-03-30 | 天津市天锻压力机有限公司 | Pressure balance protection device of double-side horizontal side extrusion cylinder of large servo press |
-
2017
- 2017-05-27 CN CN201720614771.9U patent/CN207212795U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109368439A (en) * | 2018-08-29 | 2019-02-22 | 合肥市迅立达电梯有限公司 | A kind of hydraulic elevator |
| CN112576564A (en) * | 2020-11-26 | 2021-03-30 | 天津市天锻压力机有限公司 | Pressure balance protection device of double-side horizontal side extrusion cylinder of large servo press |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180410 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |