CN106523318A - Two-way piston pump and control method thereof - Google Patents
Two-way piston pump and control method thereof Download PDFInfo
- Publication number
- CN106523318A CN106523318A CN201610933600.2A CN201610933600A CN106523318A CN 106523318 A CN106523318 A CN 106523318A CN 201610933600 A CN201610933600 A CN 201610933600A CN 106523318 A CN106523318 A CN 106523318A
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- China
- Prior art keywords
- drive mechanism
- pump
- dosing pump
- control system
- unidirectional
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
- F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/04—Combinations of two or more pumps
- F04B23/06—Combinations of two or more pumps the pumps being all of reciprocating positive-displacement type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
Abstract
The invention is suitable for the field of piston pumps, and provides a two-way piston pump and a control method thereof. The piston pump comprises a control system, a first one-way metering pump, a second one-way metering pump, a first driving mechanism and a second driving mechanism; the control system controls operation or standing of the first and second driving mechanisms; the first and second one-way metering pumps are respectively connected with the first and second driving mechanisms; each one-way metering pump has a hollow cavity, a sucking port and a discharge port; the cavity is communicated with the sucking port and the discharge port; a pneumatic ball valve is mounted in the sucking port; a one-way valve is mounted in the discharge port; each driving mechanism includes a piston rod capable of extending; the end parts of the piston rods are inserted in the cavities of the one-way metering pumps, and perform a reciprocating motion in the cavities; and the control system controls the first and second driving mechanisms to drive reverse movement of the two piston rods. The piston pump has two sets of one-way piston metering pumps; one set is for feeding, and the other set is for discharging; and the two sets are alternately operated to realize continuous discharge of the piston pump.
Description
Technical field
The invention belongs to piston pump field, more particularly to a kind of type bidirectional piston pump and its control method.
Background technology
Piston pump is Reciprocating Metering Pump, and its operation principle is determined after an impulse stroke is completed, and needs reversely to transport
Dynamic suction, the cycle in time that there is work, it is impossible to continuous to work.
Piston pump in the market is one-way only operation mostly, it is impossible to continuous to work, and is lost time.Small part bidirectional piston
Pump can also realize continuous work, but in continuous work have cutout phenomenon, it is impossible to which realization at the uniform velocity discharges, and discharging speed is controlled not
Accurately.
The content of the invention
The technical problem to be solved is a kind of type bidirectional piston pump of offer and its control method, it is intended to improve piston
The work efficiency of pump, while realizing the at the uniform velocity discharging of piston pump.
To solve above-mentioned technical problem, the present invention is achieved in that a kind of type bidirectional piston pump, including control system, the
One unidirectional dosing pump, the second unidirectional dosing pump, the first drive mechanism and the second drive mechanism, first, second drive mechanism
Electrically connect with the control system, the control system controls the operating or static of first, second drive mechanism, described the
First, the second unidirectional dosing pump is connected with first, second drive mechanism respectively, and each unidirectional dosing pump is respectively provided with hollow cavity
And material sucking port and discharging opening, and the cavity connected with the material sucking port and discharging opening, is provided with pneumatic at the material sucking port
Ball valve, the discharge outlet are provided with check valve；Each drive mechanism includes telescopic piston rod, the end of the piston rod
It is located in the cavity of the unidirectional dosing pump, and moves back and forth along the cavity, control system control is described first, the
Two drive mechanisms drive two piston rod adverse movements.
Further, the drive mechanism also includes motor, screw mandrel and screw, and the screw can be rotatable around its axis, institute
The outfan that screw is stated with the motor is connected, and the screw mandrel is located in the screw, and connects with the screw screw thread
Connect.
Further, the drive mechanism also includes screw fixed cover, rotating wheel and synchronizing wheel, and the screw is fixed on silk
On female fixed cover, the synchronizing wheel is arranged on the screw fixed cover, and with the screw synchronous axial system, rotating wheel peace
It is mounted on the outfan of the motor, and is connected by toothed belt transmission with the synchronizing wheel.
Further, the drive mechanism also includes slide block, and one end of the slide block is connected with the screw mandrel, its other end
It is connected with the piston rod.
Further, the type bidirectional piston pump also includes base, and the unidirectional dosing pump and drive mechanism are arranged on described
On base, the drive mechanism also includes guide rail, and the guide rail is fixed on the base, and the slide block is movably disposed at
On the guide rail, and can move back and forth along the guide rail.
Further, the drive mechanism also includes guide plate and coordinates the motor to limit the motion pole of the piston rod
The approach switch of point of accumulation and discharging zero point, the guide plate are fixed on the base, and positioned at the side of the slide block, institute
State, the approach switch is fixed in the gathering sill, and be close to the slide block.
Further, the piston pump also includes two five-way electromagnetic valves and coordinates the drive mechanism to limit the work
The approach switch of the limit of sports record point and discharging zero point of stopper rod, two five-way electromagnetic valves are connected with the pneumatic ball valve,
And control the opening and closing of the pneumatic ball valve.
Further, the control system is motion control card or PLC.
Present invention also offers a kind of control method of type bidirectional piston pump, comprises the following steps：
Control system controls the operating of the first drive mechanism, and opens the pneumatic ball valve at the first unidirectional dosing pump material sucking port,
First drive mechanism pulls piston rod, the first unidirectional dosing pump to start suction；
After the completion of suction, the control system controls the motor reversal of suction, and closes pneumatic ball valve, and described first is unidirectional
Dosing pump starts discharging；Meanwhile, the control system controls the operating of the second drive mechanism, and opens the gas of the second unidirectional dosing pump
Dynamic ball valve, drive mechanism pull piston rod, the second unidirectional dosing pump to start suction；
After the completion of the first unidirectional dosing pump discharging, the control system controls the second drive mechanism reversion, and
Pneumatic ball valve is closed, the second unidirectional dosing pump starts discharging；Meanwhile, the control system controls first drive mechanism
Reversion, and the pneumatic ball valve at material sucking port is opened, the first unidirectional dosing pump suction again, with this reciprocal operation.
Further, during the described first unidirectional dosing pump discharging, the second unidirectional dosing pump suction is completed, described
Control system control second drive mechanism is static, until after the completion of the described first unidirectional dosing pump discharging, approach switch
Control system control drive mechanism operating, described second unidirectional dosing pump is coordinated to start discharging；
During the second unidirectional dosing pump discharging, the first unidirectional dosing pump suction is completed, the control system
Control first drive mechanism static, until after the completion of the described second unidirectional dosing pump discharging, approach switch coordinates control
System control drive mechanism operating, the first unidirectional dosing pump start discharging.
Compared with prior art, beneficial effect is the present invention：A kind of type bidirectional piston pump of the present invention, by two unidirectional meters
Amount pump and two drive mechanisms constitute two covering devices, and the drive mechanism of each covering device includes telescopic piston rod, the work
The end of stopper rod is located in the cavity of the unidirectional dosing pump, and is moved back and forth along the cavity, the control system control
Described two drive mechanisms drive two piston rod adverse movements, so that when wherein set of device discharges, it is another set of
The reverse suction of piston rod of device.When the device discharging of discharging finishes the reverse suction of beginning, the piston rod of another covering device is inhaled
Material completes to start discharging, and a set of suction of a set of discharging of two covering devices realizes the continuous discharge of type bidirectional piston pump, improves piston
The work efficiency of pump.Additionally, the operating of described two drive mechanisms is controlled by control system, adjust pump housing discharging stroke and
The fltting speed of piston rod, enhances the regulation to pump housing flow velocity, realizes the at the uniform velocity discharging of piston pump.
Description of the drawings
Fig. 1 is a kind of overall structure diagram of type bidirectional piston pump provided in an embodiment of the present invention.
Fig. 2 is the cross-sectional view of Fig. 1.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, it is below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only to explain the present invention, and
It is not used in the restriction present invention.
As depicted in figs. 1 and 2, it is a kind of type bidirectional piston pump 100 provided in an embodiment of the present invention, including control system (not
Diagram), base 1, the first unidirectional dosing pump 2, the second unidirectional dosing pump 2 ', the first drive mechanism 3 and the second drive mechanism 3 '.The
First, the second drive mechanism 3,3 ' is electrically connected with the control system, and the control system controls first, second drive mechanism 3,3 '
Operating or static.First, second unidirectional dosing pump 2,2 ' is connected composition one respectively and is set with first, second drive mechanism 3,3 '
Put and be arranged on the base 1.Control system in the embodiment of the present invention is motion control card or PLC (Programmable
Logic Controller, programmable logic controller (PLC)).
Each unidirectional metering pump configuration is identical, all with hollow cavity 21 and material sucking port 22 and discharging opening 23 and described
Cavity 21 is connected with the material sucking port 22 and discharging opening 23.Pneumatic ball valve 4, the discharging opening 23 are installed at the material sucking port 22
Place is provided with check valve 5.Each driving mechanism structure is identical, all including telescopic piston rod 31, the end of the piston rod 31
It is located in the cavity 21 of the unidirectional dosing pump, and moves back and forth along the cavity 21, the control system controls each driving
Mechanism drives two 31 adverse movements of piston rod.During work, the piston rod 31 of set of device moves closer to corresponding unidirectional dosing pump
Discharging opening 23, for discharging；The piston rod adverse movement of another covering device is used for suction.When the set of device for discharging goes out
After material is finished, start reverse suction, another covering device suction is finished, start discharging, it is with this reciprocal operation, described double so as to realize
To the continuous discharge of piston pump 100.
Specifically, each drive mechanism also includes motor 32, screw mandrel 33, screw 34, rotating wheel 35, screw fixed cover 39 and same
Step wheel 40.The motor 32 and synchronizing wheel 40 are arranged on the side wall 11 of the base 1, and the screw 34 can turn around its axis
It is dynamic.The screw 34 is fixed on screw fixed cover 39, the synchronizing wheel 40 be arranged on the screw fixed cover 39 on, and with institute
State 40 synchronous axial system of screw.The rotating wheel 35 is arranged on the outfan of the motor 32, and is passed through with the synchronizing wheel 40
Timing Belt (not shown) is connected.The rotating wheel 35 is driven to rotate by the output shaft of motor 32, the rotating wheel 35 is led to
Crossing Timing Belt drives the synchronizing wheel 40 to rotate.The screw 34 and 40 synchronous axial system of the synchronizing wheel, and drive and the silk
The screw mandrel 33 of female 34 threaded connection is moved back and forth along the axis direction of the screw mandrel 33.The reciprocating motion of the screw mandrel 33 drive with
The piston rod 31 of the connection of the screw mandrel 33 is moved back and forth in cavity 21, to realize the suction and discharging of the unidirectional dosing pump.
During in order to prevent screw mandrel 33 and piston rod 31 to be directly connected to, screw mandrel 33 it may happen that rotate, so as to band piston
Bar 31 is rotated and the precision that affects to discharge, and slide block 36 and guide rail 37 are provided between the screw mandrel 33 and piston rod 31.The cunning
One end of block 36 is connected with the screw mandrel 33, and its other end is connected with the piston rod 31；The guide rail 37 is fixed on the bottom
On seat 1, the slide block 36 is movably disposed on the guide rail 37, and can be moved back and forth along the guide rail 37.The screw mandrel
33 move back and forth in the axial direction thereof, and drive the slide block 36 to move back and forth on the guide rail 37, and then by described
Slide block 36 drives the piston rod 31 to move back and forth in cavity 21 so that the screw mandrel 33 along its axis direction move when not
Can rotate, and then ensure the stability of the discharging of piston pump 100.
The drive mechanism 3 also include guide plate 38 and coordinate the motor limit the piston rod limit of sports record point and
The approach switch 50,60 of discharging zero point, the guide plate 38 is fixed on the base 1, and positioned at the one of the slide block 36
Side.Gathering sill 381 is offered on the guide plate 38, the approach switch 50 and approach switch 60 are fixed on the guiding
In groove 381, and the slide block 36 is close to, to the run location for sensing the slide block 36, so as to control the piston rod 31
Carry out position.
The haul distance of the piston rod 31 is controlled by motor 32, and the two ends of 31 haul distance of the piston rod are piston
The start of a run of bar 31 and stroke end, the start of a run and stroke end are the limit of sports record point of the piston rod 31.
During actual motion, piston rod 31 starts propulsion from start of a run, needs to advance the pressure ability in a small distance rear chamber 21
Check valve 5 is squeezed enough, piston rod 31 is referred to as discharging zero point where actually starting discharging, the discharging zero point is located at start of a run
And stroke end between and near the start of a run.The start of a run of the piston rod 31 and stroke end are respectively by proximity
Switch 50 and approach switch 60 are limited, and when one of piston rod 31 runs to stroke end, are opened by the proximity
50 and the cooperation motor 32 of approach switch 60 are closed, makes another piston rod 31 start discharging.
Meanwhile, because the suction process of piston rod 31 is faster than the process that discharges, therefore, when the work of the first unidirectional dosing pump 2
When stopper rod 31 discharges, the piston rod of the second unidirectional dosing pump 2 ' has run to discharging zero point and has awaited orders.Now, in the control
Under the control of system processed, the motor being connected with the second unidirectional dosing pump 2 ' is remained static, and treats the work of the first unidirectional dosing pump 2
After the discharging of stopper rod 31 is finished, control system is coordinated to start the motor under resting state by approach switch 60, described second is single
Start discharging to dosing pump 2 '.
The piston pump 100 also includes two five-way electromagnetic valves (not shown), two five-way electromagnetic valves and the gas
Dynamic ball valve 4 connects, and controls the opening and closing of the pneumatic ball valve 4.
During specific works, the pneumatic ball valve 4 for first passing through two five-way electromagnetic valves the first unidirectional dosing pumps 2 of control is opened, this
When pneumatic ball valve 4 be in communication with the outside, control system controlled motor 32 operates and pulls piston rod 31, then form true in cavity 21
Sky, feed liquid are pressed in cavity 21 under external atmosphere pressure effect, realize suction.After the completion of suction, two five-way electromagnetic valve controls
Make the pneumatic ball valve 4 to close, the control system controlled motor 32 is inverted, now push away before piston rod 31, pressure in cavity 21
Raise, check valve 5 is squeezed, feed liquid at the uniform velocity flows out cavity from discharging opening, now, the second unidirectional dosing pump 2 ' starts suction.When
After the completion of first unidirectional dosing pump 2 discharges, the piston rod 31 starts again at suction, now, second under the drive of motor 32
Unidirectional dosing pump 2 ' starts discharging, with this reciprocal operation, realizes the continuous discharge of the piston pump 100.
The embodiment of the present invention additionally provides a kind of control method of type bidirectional piston pump 100, comprises the following steps：
First unidirectional dosing pump, 2 suction：Control system controls the first drive mechanism 3 and operates, and opens the first unidirectional metering
Pneumatic ball valve 4 at 2 material sucking port 22 of pump, the first drive mechanism 3 pull piston rod 31, the first unidirectional dosing pump 2 to start suction.
First unidirectional dosing pump 2 discharges, the 2 ' suction of the second unidirectional dosing pump:After the completion of first unidirectional dosing pump, 2 suction, institute
The motor 32 for stating control system control suction is inverted, and closes pneumatic ball valve 4, and the first unidirectional dosing pump 2 starts discharging.Meanwhile,
Control system control first drive mechanism 3 ' operates, and opens the pneumatic ball valve 4 of the second unidirectional dosing pump 2 ', and second drives
Mechanism 3 ' pulls piston rod 31, the second unidirectional dosing pump 2 ' to start suction.The discharging of first unidirectional dosing pump 2 process
In, the second unidirectional dosing pump 2 ' is static, until after the completion of the described first unidirectional dosing pump 2 discharges, approach switch coordinates
Control system control the second drive mechanism 3 ' operates, and the second unidirectional dosing pump 2 ' starts discharging.
Second unidirectional dosing pump 2 ' discharges, the first suction again of unidirectional dosing pump 2：The first unidirectional dosing pump 2 discharges
After the completion of, control system control second drive mechanism 3 ' is inverted, and closes pneumatic ball valve 4, and the second unidirectional dosing pump 2 ' is opened
Begin to discharge.Meanwhile, the control system 3 controls the first drive mechanism 3 and inverts, and opens the pneumatic ball valve 4 at material sucking port, described
First suction again of unidirectional dosing pump 2.During the second unidirectional dosing pump 2 ' discharges, the first unidirectional dosing pump 2 is inhaled
Material is completed, and the first drive mechanism 3 of the control system control is static, until after the completion of the described second unidirectional dosing pump 2 ' discharges,
Approach switch coordinates control system control drive mechanism 3 to operate, and the first unidirectional dosing pump 2 starts discharging.
A kind of type bidirectional piston pump 100 of the present invention, constitutes two covering devices by two unidirectional dosing pumps and two drive mechanisms,
The drive mechanism of each covering device includes telescopic piston rod 31, and the end of the piston rod 31 is located in the unidirectional metering
In the cavity 21 of pump, and move back and forth along the cavity 21, the control system controls described two drive mechanisms and drives two
31 adverse movement of piston rod, so that when wherein set of device discharges, the reverse suction of piston rod of another covering device.When
When the device discharging of discharging finishes beginning reverse suction, the piston rod suction of another covering device completes to start discharging, two covering devices
A set of a set of suction that discharges, with this reciprocal operation, realizes the continuous discharge of type bidirectional piston pump 100, improves the work of piston pump
Make efficiency.Additionally, the operating of described two drive mechanisms is controlled by control system, pump housing charging stroke and piston rod are adjusted
31 fltting speed, enhances the regulation to pump housing flow velocity, realizes the at the uniform velocity discharging of piston pump 100.Two motors are driven respectively
Two unidirectional dosing pumps efficiently solve flow pulsation during commutation, carry compared to two unidirectional dosing pumps of a Motor drive
The high measuring accuracy of piston pump 100.
Presently preferred embodiments of the present invention is the foregoing is only, not to limit the present invention, all essences in the present invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of type bidirectional piston pump, it is characterised in that including control system, the first unidirectional dosing pump, the second unidirectional dosing pump,
One drive mechanism and the second drive mechanism, first, second drive mechanism are electrically connected with the control system, the control system
The operating or static of system control first, second drive mechanism, the first, second unidirectional dosing pump is respectively with described the
First, the second drive mechanism connection, each unidirectional dosing pump are respectively provided with hollow cavity and material sucking port and discharging opening, and the cavity
Connect with the material sucking port and discharging opening, pneumatic ball valve is installed at the material sucking port, the discharge outlet is provided with check valve；
Each drive mechanism includes telescopic piston rod, and the end of the piston rod is located in the cavity of the unidirectional dosing pump,
And move back and forth along the cavity, the control system controls first, second drive mechanism and drives two piston rods reverse
Motion.
2. a kind of type bidirectional piston pump as claimed in claim 1, it is characterised in that the drive mechanism also includes motor, screw mandrel
And screw, the screw can be rotatable around its axis, and the screw is connected with the outfan of the motor, and the screw mandrel wears
In the screw, and it is threadedly coupled with the screw.
3. a kind of type bidirectional piston pump as claimed in claim 2, it is characterised in that the drive mechanism is also fixed including screw
Set, rotating wheel and synchronizing wheel, the screw are fixed on screw fixed cover, and the synchronizing wheel is arranged on the screw fixed cover
On, and with the screw synchronous axial system, the rotating wheel is arranged on the outfan of the motor, and passed through with the synchronizing wheel
Toothed belt transmission connects.
4. a kind of type bidirectional piston pump as claimed in claim 2, it is characterised in that the drive mechanism also includes slide block, described
One end of slide block is connected with the screw mandrel, and its other end is connected with the piston rod.
5. a kind of type bidirectional piston pump as claimed in claim 4, it is characterised in that the type bidirectional piston pump also includes base, institute
State unidirectional dosing pump and drive mechanism is arranged on the base, the drive mechanism also includes guide rail, the guide rail is fixed on
On the base, the slide block is movably disposed on the guide rail, and can be moved back and forth along the guide rail.
6. a kind of type bidirectional piston pump as claimed in claim 5, it is characterised in that the drive mechanism also includes guide plate and matches somebody with somebody
The approach switch that the motor limits the limit of sports record point and discharging zero point of the piston rod is closed, the guide plate is fixed on institute
State on base, and gathering sill is offered on the side of the slide block, the guide plate, the approach switch is fixed on institute
State in gathering sill, and be close to the slide block.
7. a kind of type bidirectional piston pump as claimed in claim 1, it is characterised in that the piston pump also includes two five energization magnetic
Valve, two five-way electromagnetic valves are connected with the pneumatic ball valve, and control the opening and closing of the pneumatic ball valve.
8. a kind of type bidirectional piston pump as claimed in claim 1, it is characterised in that the control system be motion control card or
PLC。
9. a kind of control method of type bidirectional piston pump as claimed in any of claims 1 to 8 in one of claims, it is characterised in that include
Following steps：
Control system controls the operating of the first drive mechanism, and opens the pneumatic ball valve at the first unidirectional dosing pump material sucking port, and first
Drive mechanism pulls piston rod, the first unidirectional dosing pump to start suction；
After the completion of suction, the control system controls the motor reversal of suction, and closes pneumatic ball valve, the described first unidirectional metering
Pump starts discharging；Meanwhile, the control system controls the operating of the second drive mechanism, and opens the Pneumatic ball of the second unidirectional dosing pump
Valve, drive mechanism pull piston rod, the second unidirectional dosing pump to start suction；
After the completion of the first unidirectional dosing pump discharging, the control system controls the second drive mechanism reversion, and closes
Pneumatic ball valve, the second unidirectional dosing pump start discharging；Meanwhile, it is anti-that the control system controls first drive mechanism
Turn, and open the pneumatic ball valve at material sucking port, the first unidirectional dosing pump suction again, with this reciprocal operation.
10. the control method of type bidirectional piston pump as claimed in claim 9, it is characterised in that the described first unidirectional metering is pumped out
During material, the second unidirectional dosing pump suction is completed, and it is static that the control system controls second drive mechanism, until
After the completion of the first unidirectional dosing pump discharging, approach switch coordinates control system control drive mechanism to operate, and described second
Individual unidirectional dosing pump starts discharging；
During the second unidirectional dosing pump discharging, the first unidirectional dosing pump suction is completed, the control system control
First drive mechanism is static, until after the completion of the described second unidirectional dosing pump discharging, approach switch coordinates control system
Control drive mechanism operating, the first unidirectional dosing pump start discharging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933600.2A CN106523318B (en) | 2016-10-31 | 2016-10-31 | A kind of type bidirectional piston pump and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610933600.2A CN106523318B (en) | 2016-10-31 | 2016-10-31 | A kind of type bidirectional piston pump and its control method |
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| Publication Number | Publication Date |
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| CN106523318A true CN106523318A (en) | 2017-03-22 |
| CN106523318B CN106523318B (en) | 2019-04-02 |
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| CN108094482A (en) * | 2018-02-01 | 2018-06-01 | 福建安井食品股份有限公司 | A kind of fillings continuous conveying device |
| CN108361168A (en) * | 2018-02-05 | 2018-08-03 | 南京航空航天大学 | It is staggered the time based on dual piston the continuous and stable type metering pump of compensation policy |
| CN108380444A (en) * | 2018-01-20 | 2018-08-10 | 深圳市艾邦机电设备有限公司 | A kind of adhesive injection device and glue-pouring method |
| CN110905754A (en) * | 2019-09-02 | 2020-03-24 | 苏州悦奇宁流体自动化科技有限公司 | High-precision flow control system |
| CN112502931A (en) * | 2020-11-16 | 2021-03-16 | 四川宏华电气有限责任公司 | Ball screw rod type fracturing pump based on one-way motor drive |
| CN112960154A (en) * | 2021-03-16 | 2021-06-15 | 广州市智美机械设备有限公司 | Filling device |
| CN113357119A (en) * | 2021-07-19 | 2021-09-07 | 无锡易福高压清洗设备有限公司 | Single-cylinder crankshaft-free servo plunger pump and module thereof |
| CN113757068A (en) * | 2021-01-07 | 2021-12-07 | 郝晓静 | Double-acting plunger type feeding pump |
| CN112502931B (en) * | 2020-11-16 | 2024-05-03 | 四川宏华电气有限责任公司 | Ball screw type fracturing pump based on unidirectional motor drive |
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