CN106541610A - Electromechanical organisation of working with accumulator ftercompction - Google Patents

Electromechanical organisation of working with accumulator ftercompction Download PDF

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Publication number
CN106541610A
CN106541610A CN201611140186.6A CN201611140186A CN106541610A CN 106541610 A CN106541610 A CN 106541610A CN 201611140186 A CN201611140186 A CN 201611140186A CN 106541610 A CN106541610 A CN 106541610A
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CN
China
Prior art keywords
control unit
upper cylinder
state
hydraulic pump
cylinder
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.)
Pending
Application number
CN201611140186.6A
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Chinese (zh)
Inventor
孙春苗
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Tianjin Science And Technology Co Ltd Parsley
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Tianjin Science And Technology Co Ltd Parsley
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Application filed by Tianjin Science And Technology Co Ltd Parsley filed Critical Tianjin Science And Technology Co Ltd Parsley
Priority to CN201611140186.6A priority Critical patent/CN106541610A/en
Publication of CN106541610A publication Critical patent/CN106541610A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/163Control arrangements for fluid-driven presses for accumulator-driven presses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/161Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/16Control arrangements for fluid-driven presses
    • B30B15/18Control arrangements for fluid-driven presses controlling the reciprocating motion of the ram

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

The invention discloses a kind of electromechanical organisation of working with accumulator ftercompction, including:Upper cylinder and lower oil cylinder;Hydraulic pump;Fuel tank;First control unit;Second control unit;3rd control unit;4th control unit and overflow valve.Upper cylinder realization can be controlled by the first control unit, the second control unit, the 3rd control unit and the 4th control unit:Idle stroke action, feed motion, packing state and backhaul action;Lower oil cylinder can be controlled to realize:Stretch out and backhaul action.Upper cylinder realization can be controlled by the first control unit, the second control unit, the 3rd control unit and the 4th control unit:Idle stroke action, feed motion, packing state and backhaul action;Lower oil cylinder can be controlled to realize:Stretch out and backhaul action.Overflow valve can control whole hydraulic system pressure.

Description

Electromechanical organisation of working with accumulator ftercompction
Technical field
The present invention relates to electromechanical integration technology area, more particularly to a kind of electromechanical processing machine with accumulator ftercompction Structure.
Background technology
Stamped workpieces are a kind of processing modes of workpiece, and in prior art, the form of stamped workpieces has two kinds, and one is to adopt Form of the machine driving as power, two is form of the hydraulic drive as power;In the rushing as power using hydraulic drive In bed, punch rod is the piston rod of hydraulic jack, generally comprises upper and lower two oil cylinders, major oil of the upper cylinder for stamped workpieces Cylinder, secondary oil cylinder of the lower oil cylinder for stamped workpieces, upper cylinder have following mechanism action:It is close to the idle stroke action of workpiece, enters To action, pressurize action and backhaul action, lower oil cylinder has the action for moving up and down.
However, the hydraulic system for controlling upper cylinder of the prior art can not make the idle stroke action of upper cylinder with Feed motion separates, that is to say, that in idle stroke action and feed motion, the pressure provided by piston rod is that identical (is Process velocity is provided, the movement velocity of idle stroke action request piston rod is fast, and pressure is little, and feed motion requires piston rod Movement velocity is slow, and pressure is big).Therefore, the working (machining) efficiency of punch press is have impact on, and while accelerates the loss of control element.
The content of the invention
For above-mentioned technical problem present in existing technology, implementing for the present invention has accumulator ftercompction there is provided a kind of Electromechanical organisation of working.
To solve above-mentioned technical problem, the technical solution used in the present invention is:
A kind of electromechanical organisation of working with accumulator ftercompction, including:
Upper cylinder and lower oil cylinder, the piston rod of the upper cylinder down, the upper cylinder have make its piston rod unloaded to The first state of lower motion, make the second state and its piston rod is loaded and is kept quiet that the loading of its piston rod moves downward The third state only and make the 4th state of its piston rod backhaul;Upward, the lower oil cylinder has the piston rod of the lower oil cylinder There is the first state for making its piston rod move upwards and make the second state that its piston rod moves downward;
Hydraulic pump, which is used to be that the upper cylinder and the lower oil cylinder provide hydraulic oil;
Fuel tank, which is used to provide hydraulic oil for the hydraulic pump or reclaims the hydraulic pressure of the upper cylinder and the lower oil cylinder Oil;
Overflow valve, which is connected between the fluid pressure line of the hydraulic pump and the fuel tank, so that the hydraulic pump can It is that the upper cylinder and the lower oil cylinder provide constant hydraulic oil;
First control unit, which is used to control hydraulic pump for the oil supply cylinder that oils, and first control unit has to be made The hydraulic pump is connected with the fuel tank and while makes first position that the rod chamber and rodless cavity of the upper cylinder block, makes The hydraulic pump is the rodless cavity fuel feeding of the upper cylinder and while the rod chamber of the upper cylinder is connected with the fuel tank The second position and make rod chamber fuel feeding that the hydraulic pump is the upper cylinder and while make the rodless cavity of the upper cylinder with 3rd position of the fuel tank connection;
Second control unit, which is used to control hydraulic pump for the lower oil cylinder fuel feeding, and second control unit is arranged at Between first control unit and the rod chamber of the upper cylinder, second control unit includes the first check valve and second Check valve, the import of first check valve are connected with first control unit, and which exports the rod chamber with the upper cylinder Connection;The import of second check valve is connected with the rod chamber of the upper cylinder, and its outlet is connected with first control unit It is logical, wherein, second check valve also has a control mouth, and the control mouth has makes the second check valve one-way conduction Second state of first state and two-way admittance;
3rd control unit, which is arranged between the control mouth of the hydraulic pump and second check valve, and the described 3rd Control unit has to be made first position of second check valve in first state and makes second check valve in the The second position of two-state;Wherein:
4th control unit, which is used to controlling the lower oil cylinder to switch between its first state and second state; Wherein:
When first control unit switches to the second position, the 3rd control unit switches to the second position, institute Upper cylinder is stated in first state;First control unit switches to the second position, the 3rd control unit and switches to During one position, the upper cylinder is in the second state;First control unit switches to first position, the 3rd control list When unit switches to first position, the upper cylinder is in the third state;First control unit switches to the 3rd position, described When 3rd control unit switches to first position, the upper cylinder is in the 4th state.
Preferably, the 4th control unit is arranged between first control unit and the lower oil cylinder, when described When first control unit switches to first position, the 4th control unit is turned on the hydraulic pump, and the 4th control is single Unit has the rod chamber and fuel tank for making the rod chamber and rodless cavity of the lower oil cylinder first position blocked, making the lower oil cylinder Connection and while make rodless cavity and the second position that the hydraulic pump is connected, the rodless cavity of the lower oil cylinder is connected with fuel tank And while make the 3rd position that rod chamber is connected with the hydraulic pump.
Preferably, it is connected on the fluid pressure line between first control unit and the rodless cavity of the upper cylinder and arranges The import for having the 3rd check valve, the 3rd check valve is connected with first control unit, the outlet of the 3rd check valve Connect with the rodless cavity of the upper cylinder.
Preferably, air relief valve and two are provided with the fluid pressure line between the hydraulic pump and the 3rd control unit Two way selected valve, wherein, when first control unit is in the second position, the bi-bit bi-pass reversal valve conducting.
Preferably, first control unit is three-position four-way electromagnetic directional valve.
Preferably, the 3rd control unit is two-position four-way solenoid directional control valve.
Preferably, the 4th control unit is three-position four-way electromagnetic directional valve.
Preferably, it is provided with first check valve for pushing against the spring of its inner spool, so that described first is unidirectional Valve is opened under a certain pressure.
Compared with prior art, the beneficial effect of the electromechanical organisation of working with accumulator ftercompction of the invention is:Pass through First control unit, the second control unit, the 3rd control unit and the 4th control unit can control upper cylinder realization:Null Journey action, feed motion, packing state and backhaul action;Lower oil cylinder can be controlled to realize:Stretch out and backhaul action.Overflow valve Whole hydraulic system pressure can be controlled.
Description of the drawings
Fig. 1 is the structural representation of the electromechanical organisation of working with accumulator ftercompction of the present invention.
In figure:
10- hydraulic pumps;20- upper cylinders;Oil cylinder under 30-;40- fuel tanks;The first control units of 50-;60- second controls list Unit;The first check valves of 61-;The second check valves of 62-;The 3rd control units of 70-;The 4th control units of 80-;90- bi-bit bi-pass is changed To valve;100- air relief valve;The 3rd check valves of 110-;120- accumulators;130- switch valves;140- overflow valves.
Specific embodiment
To make those skilled in the art be better understood from technical scheme, below in conjunction with the accompanying drawings and specific embodiment party Formula elaborates to the present invention.
As shown in Figure 1 The embodiment provides a kind of electromechanical organisation of working with 120 ftercompction of accumulator, is used for Stamped workpieces, the electromechanical organisation of working that should have 120 ftercompction of accumulator are applied to punch press, the electromechanics with 120 ftercompction of accumulator Organisation of working includes:Upper cylinder 20 and lower oil cylinder 30, down, the upper cylinder 20 has makes which to the piston rod of the upper cylinder 20 First state that piston rod zero load is moved downward, make the second state and make its piston rod that its piston rod loading moves downward Loading and the third state of remains stationary and make the 4th state of its piston rod backhaul;The piston rod court of the lower oil cylinder 30 On, the lower oil cylinder 30 has to be made first state that its piston rod moved upwards and makes the second shape that its piston rod moves downward State;Hydraulic pump 10, which is used to be that the upper cylinder 20 and the lower oil cylinder 30 provide hydraulic oil;Fuel tank 40, which is used for as described Hydraulic pump 10 provides hydraulic oil or reclaims the hydraulic oil of the upper cylinder 20 and the lower oil cylinder 30;Overflow valve 140, which is connected to Between the fluid pressure line of the hydraulic pump 10 and the fuel tank 40, so that the hydraulic pump 10 can be the upper cylinder 20 and institute State lower oil cylinder 30 and constant hydraulic oil is provided;First control unit 50, which is used to controlling hydraulic pump 10 to supply for the upper cylinder 20 Oil, first control unit 50 has makes the hydraulic pump 10 connect with the fuel tank 40 and while make the upper cylinder 20 First position that rod chamber and rodless cavity are blocked, make rodless cavity fuel feeding that the hydraulic pump 10 is the upper cylinder 20 and while Make the second position that the rod chamber of the upper cylinder 20 connected with the fuel tank 40 and make the hydraulic pump 10 to oil for described The rod chamber fuel feeding of cylinder 20 simultaneously while makes the 3rd position that the rodless cavity of the upper cylinder 20 is connected with the fuel tank 40;Second control Unit processed 60, which is used to controlling hydraulic pump 10 for 30 fuel feeding of lower oil cylinder, and second control unit 60 is arranged at described the Between one control unit 50 and the rod chamber of the upper cylinder 20, second control unit 60 includes the first check valve 61 and Two check valves 62, the import of first check valve 61 are connected with first control unit 50, and which exports and the upper cylinder 20 rod chamber connection;The import of second check valve 62 is connected with the rod chamber of the upper cylinder 20, its outlet with it is described First control unit 50 is connected, wherein, second check valve 62 also has a control mouth, and the control mouth has makes described the Second state of the first state and two-way admittance of two check valves, 62 one-way conduction;3rd control unit 70, which is arranged at described Between the control mouth of hydraulic pump 10 and second check valve 62, the 3rd control unit 70 has makes second check valve 62 in first state first positions and make second check valve 62 in the second state the second position;Wherein:The Four control units 80, which is used to controlling the lower oil cylinder 30 to switch between its first state and second state;Wherein:When It is when first control unit 50 switches to the second position, the 3rd control unit 70 and switches to the second position, described to oil Cylinder 20 is in first state;First control unit 50 switches to the second position, the 3rd control unit 70 and switches to During one position, the upper cylinder 20 is in the second state;First control unit 50 switches to first position, the 3rd control When unit processed 70 switches to first position, the upper cylinder 20 is in the third state;First control unit 50 switches to When three positions, the 3rd control unit 70 switch to first position, the upper cylinder 20 is in the 4th state.
Understood according to above-mentioned, by the first control unit 50, the second control unit 60, the 3rd control unit 70 and the 4th Control unit 80 can control upper cylinder 20 and realize:Idle stroke action, feed motion, packing state and backhaul action;Can The lower oil cylinder 30 of control is realized:Stretch out and backhaul action.I.e.:When first control unit 50 switch to the second position, described When three control units 70 switch to the second position, the upper cylinder 20 carries out idle stroke action;First control unit 50 is cut When shifting to the second position, the 3rd control unit 70 and switching to first position, the upper cylinder 20 is in feed motion;It is described When first control unit 50 switches to first position, the 3rd control unit 70 and switches to first position, the upper cylinder 20 In packing state;First control unit 50 switches to the 3rd position, the 3rd control unit 70 and switches to first When putting, the upper cylinder 20 carries out backhaul action.
Understood according to above-mentioned, overflow valve 140 can make whole hydraulic system under the pressure of relatively flat steady pressure to oil Cylinder 20 and lower 30 fuel feeding of oil cylinder.
In a preferred embodiment of the invention, the 4th control unit 80 is arranged at first control unit 50 And the lower oil cylinder 30 between, when first control unit 50 switches to first position, the 4th control unit 80 with The hydraulic pump 10 is turned on, and the 4th control unit 80 has makes what the rod chamber and rodless cavity of the lower oil cylinder 30 were blocked First position, the rod chamber of the lower oil cylinder 30 is made to connect with fuel tank 40 and while rodless cavity is connected with the hydraulic pump 10 The second position, the rodless cavity of the lower oil cylinder 30 is connected with fuel tank 40 and while rod chamber is connected with the hydraulic pump 10 The 3rd logical position.Thus, stretching out or backhaul for lower oil cylinder 30 can be controlled by controlling the 4th control unit 80.
As further selecting, the liquid being connected between first control unit 50 and the rodless cavity of the upper cylinder 20 The 3rd check valve 110 is provided with pressure pipe road, the import of the 3rd check valve 110 is connected with first control unit 50, The outlet of the 3rd check valve 110 is connected with the rodless cavity of the upper cylinder 20.
As further selecting, it is provided with the fluid pressure line between the hydraulic pump 10 and the 3rd control unit 70 Air relief valve 100 and bi-bit bi-pass reversal valve 90, wherein, when first control unit 50 is in the second position, described two Two way selected valve 90 is turned on.
Used as further selecting, first control unit 50 is three-position four-way electromagnetic directional valve.
Used as further selecting, the 3rd control unit 70 is two-position four-way solenoid directional control valve.
Used as further selecting, the 4th control unit 80 is three-position four-way electromagnetic directional valve.
As further selecting, it is provided with first check valve 61 for pushing against the spring of its inner spool, so that institute State the first check valve 61 to open under a certain pressure.
When upper cylinder 20 is in packing state, the hydraulic oil in the rodless cavity of upper cylinder 20 may be due to upper cylinder 20 The oil leak of itself and the oil leak of other Hydraulic Elements, pressure can reduce, to protect the hydraulic oil in the rodless cavity of upper cylinder 20 Hold constant so that the electromechanical mechanism mechanism that upper cylinder 20 has constant packing state, the present invention also includes pressure-keeping mechanism, the guarantor Press mechanism includes that a rodless cavity for upper cylinder 20 provides the accumulator 120 of the hydraulic oil of certain pressure, and for controlling The switch valve 130 of the opening and closing of the accumulator 120, the rated pressure of the accumulator 120 are more than the specified pressure of the hydraulic pump 10 Power, when the reduced pressure of the hydraulic oil in the rodless cavity of upper cylinder 20, opens switch valve 130, and accumulator 120 is to rodless cavity Hydraulic oil is rushed, when the hydraulic fluid pressure in rodless cavity is increased to required value, closing switch valve 130.
Above example is only the exemplary embodiment of the present invention, is not used in the restriction present invention, protection scope of the present invention It is defined by the claims.Those skilled in the art can be made respectively to the present invention in the essence and protection domain of the present invention Modification or equivalent are planted, this modification or equivalent also should be regarded as being within the scope of the present invention.

Claims (8)

1. a kind of electromechanical organisation of working with accumulator ftercompction, it is characterised in that include:
Upper cylinder and lower oil cylinder, down, the upper cylinder has makes the unloaded fortune downwards of its piston rod to the piston rod of the upper cylinder Dynamic first state, make the second state that its piston rod loading moves downward and load its piston rod and remains stationary The third state and make the 4th state of its piston rod backhaul;Upward, the lower oil cylinder has to be made the piston rod of the lower oil cylinder First state that its piston rod is moved upwards and make the second state that its piston rod moves downward;
Hydraulic pump, which is used to be that the upper cylinder and the lower oil cylinder provide hydraulic oil;
Fuel tank, which is used to provide hydraulic oil for the hydraulic pump or reclaims the hydraulic oil of the upper cylinder and the lower oil cylinder;
Overflow valve, which is connected between the fluid pressure line of the hydraulic pump and the fuel tank, so that the hydraulic pump can be institute State upper cylinder and the lower oil cylinder provides constant hydraulic oil;
First control unit, which is used to control hydraulic pump for the oil supply cylinder that oils, and first control unit is described with making Hydraulic pump connect with the fuel tank and while make first position that the rod chamber and rodless cavity of the upper cylinder block, make it is described Hydraulic pump is the rodless cavity fuel feeding of the upper cylinder and while makes second that the rod chamber of the upper cylinder connected with the fuel tank Position and make rod chamber fuel feeding that the hydraulic pump is the upper cylinder and while make the rodless cavity of the upper cylinder with it is described 3rd position of fuel tank connection;
Second control unit, which is used to control hydraulic pump for the lower oil cylinder fuel feeding, and second control unit is arranged at described Between the rod chamber of the first control unit and the upper cylinder, second control unit includes the first check valve and second unidirectional Valve, the import of first check valve are connected with first control unit, and its outlet is connected with the rod chamber of the upper cylinder; The import of second check valve is connected with the rod chamber of the upper cylinder, and its outlet is connected with first control unit, its In, second check valve also has a control mouth, and the control mouth has makes the first of the second check valve one-way conduction Second state of state and two-way admittance;
3rd control unit, which is arranged between the control mouth of the hydraulic pump and second check valve, the 3rd control Unit has to be made first position of second check valve in first state and makes second check valve be in the second shape The second position of state;Wherein:
4th control unit, which is used to controlling the lower oil cylinder to switch between its first state and second state;Wherein:
When first control unit switches to the second position, the 3rd control unit switches to the second position, it is described on Oil cylinder is in first state;First control unit switches to the second position, the 3rd control unit and switches to first When putting, the upper cylinder is in the second state;First control unit switches to first position, the 3rd control unit and cuts When shifting to first position, the upper cylinder is in the third state;First control unit switch to the 3rd position, the described 3rd When control unit switches to first position, the upper cylinder is in the 4th state.
2. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that the 4th control Unit is arranged between first control unit and the lower oil cylinder, when first control unit switches to first position When, the 4th control unit is turned on the hydraulic pump, and the 4th control unit has the rod chamber for making the lower oil cylinder The first position blocked with rodless cavity, the rod chamber for making the lower oil cylinder connect with fuel tank and while make rodless cavity with it is described Hydraulic pump connection the second position, the rodless cavity of the lower oil cylinder is connected with fuel tank and while is made rod chamber with the hydraulic pressure 3rd position of pump connection.
3. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that be connected to described The 3rd check valve, the 3rd check valve are provided with fluid pressure line between the rodless cavity of one control unit and the upper cylinder Import connect with first control unit, the outlet of the 3rd check valve is connected with the rodless cavity of the upper cylinder.
4. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that the hydraulic pump with Air relief valve and bi-bit bi-pass reversal valve are provided with fluid pressure line between 3rd control unit, wherein, when described first When control unit is in the second position, the bi-bit bi-pass reversal valve conducting.
5. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that first control Unit is three-position four-way electromagnetic directional valve.
6. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that the 3rd control Unit is two-position four-way solenoid directional control valve.
7. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that the 4th control Unit is three-position four-way electromagnetic directional valve.
8. the electromechanical organisation of working with accumulator ftercompction according to claim 1, it is characterised in that described first is unidirectional It is provided with valve for pushing against the spring of its inner spool, so that first check valve is opened under a certain pressure.
CN201611140186.6A 2016-12-12 2016-12-12 Electromechanical organisation of working with accumulator ftercompction Pending CN106541610A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107031092A (en) * 2017-04-11 2017-08-11 浙江柱达机械科技有限公司 Efficient energy-saving hydraulic press
CN107246893A (en) * 2017-04-28 2017-10-13 防城港市海河堤管理站 Hydrologic monitoring device with trigger mechanism
CN110410373A (en) * 2019-08-26 2019-11-05 宁波市奉化溪口威尔特制泵厂 A kind of multichannel valve block for hydraulic station
CN110425199A (en) * 2019-08-26 2019-11-08 宁波市奉化溪口威尔特制泵厂 A kind of energy-saving frequency conversion hydraulic station

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107031092A (en) * 2017-04-11 2017-08-11 浙江柱达机械科技有限公司 Efficient energy-saving hydraulic press
CN107031092B (en) * 2017-04-11 2018-11-23 浙江柱达机械科技有限公司 Energy-efficient hydraulic press
CN107246893A (en) * 2017-04-28 2017-10-13 防城港市海河堤管理站 Hydrologic monitoring device with trigger mechanism
CN110410373A (en) * 2019-08-26 2019-11-05 宁波市奉化溪口威尔特制泵厂 A kind of multichannel valve block for hydraulic station
CN110425199A (en) * 2019-08-26 2019-11-08 宁波市奉化溪口威尔特制泵厂 A kind of energy-saving frequency conversion hydraulic station

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Application publication date: 20170329

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