CN217976564U

CN217976564U - Precise intelligent flow-adjusting plunger pump

Info

Publication number: CN217976564U
Application number: CN202221888174.2U
Authority: CN
Inventors: 付涛
Original assignee: Fogo Technology Dongguan Co ltd
Current assignee: Fogo Technology Dongguan Co ltd
Priority date: 2022-07-21
Filing date: 2022-07-21
Publication date: 2022-12-06
Anticipated expiration: 2032-07-21

Abstract

The utility model discloses a precise and intelligent flow-adjusting plunger pump, which comprises a base, a control motor, a nut, a screw, a slide seat, a piston rod, a piston sleeve, a control valve, a liquid inlet nozzle and a liquid outlet nozzle; the control motor is arranged on the base, and the output end of the control motor is connected with the screw; the base is provided with a guide rail, and the sliding seat is arranged on the guide rail in a sliding manner; the nut is fixed on the sliding seat and is in threaded connection with the screw; the screw is connected with the output end of the control motor; one end of the piston rod is connected with the sliding seat, and the other end of the piston rod is connected with the piston; the piston is arranged in the piston sleeve and forms a closed inner cavity; the liquid inlet nozzle and the liquid outlet nozzle are respectively connected with the inner cavity through the control valve. The utility model discloses accurate intelligent regulation flow plunger pump can be to liquid measurement and filling, and can realize digital control, and control accuracy is high, and control is simple and convenient.

Description

Precise intelligent flow-adjusting plunger pump

Technical Field

The utility model relates to a flow pump especially relates to a precise intelligent regulation flow plunger pump.

Background

In the production process of products such as lithium battery electrolyte, medicine, chemical industry, cosmetics, biological reagents and the like, the metering and filling of fluid are required. The metering pump used in the market at present mainly takes a ceramic rotary piston pump as a main part, however, the adjustment and filling precision of the ceramic rotary piston pump is complex, the filling precision cannot be controlled digitally, and the control is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can be to liquid measurement and filling, and can realize digital control, control accuracy is high, the accurate intelligent regulation flow plunger pump of control simple and convenient.

In order to achieve the purpose, the utility model provides a precision intelligent flow regulation plunger pump, which comprises a base, a control motor, a nut, a screw rod, a slide seat, a piston rod, a piston sleeve, a control valve, a liquid inlet nozzle and a liquid outlet nozzle; the control motor is arranged on the base, and the output end of the control motor is connected with the screw; the base is provided with a guide rail, and the sliding seat is arranged on the guide rail in a sliding manner; the nut is fixed on the sliding seat and is in threaded connection with the screw; the screw is connected with the output end of the control motor; one end of the piston rod is connected with the sliding seat, and the other end of the piston rod is connected with the piston; the piston is arranged in the piston sleeve and forms a closed inner cavity; the liquid inlet nozzle and the liquid outlet nozzle are respectively connected with the inner cavity through the control valve.

Compared with the prior art, the utility model forms a closed inner cavity by utilizing the piston sleeve and the piston, and the inner cavity is communicated with the liquid inlet nozzle and the liquid outlet nozzle by the control valve, so that the liquid inlet and the liquid outlet can be realized by utilizing the reciprocating motion of the piston; and the piston rod is connected with the sliding seat, and the sliding seat is connected with the screw rod through the nut, so that the screw rod is driven to rotate by the control motor, the sliding seat is driven to move and push the piston rod to move back and forth, and the liquid suction and injection operation can be realized. Because the rotational speed and the number of turns of rotation of control motor can be through the accurate control of voltage signal, consequently, the rotational speed and the angle of autorotation or the number of turns of screw rod can be free and accurate control, alright in this way accurately control the stroke of piston in the cavity to accurately control feed liquor volume or play liquid volume. Therefore, in actual production, the metering and filling of liquid can be realized only by directly inputting parameters in the control system to control the control motor, so that the aim of digital control is fulfilled, the adjustment is accurate, the control precision is high, and the control is very simple and convenient.

Preferably, the sliding seat includes a sliding seat and a connecting seat connected to the sliding seat, the sliding seat is connected to the nut and is in sliding fit with the guide rail, and the connecting seat is connected to the piston rod.

Preferably, the bottom of the sliding seat is provided with a sliding block, and the sliding block is in sliding fit with the guide rail. Through set up in the slider makes the slider with guide rail sliding fit, thereby can be right the slide leads, makes the slide slides more stably, and the position is more accurate to guarantee the accuracy of piston activity stroke, effectively improve the control accuracy of feed liquor volume and liquid output volume.

Preferably, the piston sleeve is arranged in the piston mounting seat.

Specifically, the piston mounting seat comprises a front seat body and a rear seat body, the front seat body and the rear seat body wrap the piston sleeve, and the piston rod penetrates through the rear seat body.

Specifically, a protective sleeve is further arranged between the piston mounting seat and the piston sleeve. Therefore, the piston sleeve can be protected, and the stability and the precision of the piston sleeve structure are guaranteed.

Specifically, a protection block is arranged on one side, facing the piston rod, of the piston mounting seat. Because the rear end of piston with form a back cavity between the piston bush, the piston rod passes can produce the clearance behind the piston mount pad, and impurity gets into in the back cavity easily from these clearances to influence the leakproofness between piston and the piston bush, and then influence liquid feed, notes liquid and measurement, consequently, set up the protection piece can block impurity from the clearance entering in the piston bush, thereby play the protection piston and piston bush's effect.

Preferably, the base is provided with a limit switch forward and backward along the extending direction of the guide rail, the limit switch can be triggered when the sliding seat slides back and forth, the limit switch is electrically connected with a control system, and the control system is electrically connected with the control motor. Through setting up limit switch can be automatic in order to control the just reversal of control motor to both can prevent that the piston rod from excessively stretching out, can make control motor continuous drive again the piston rod round trip movement, and then realize the feed liquor in succession and go out the liquid.

Preferably, the sliding seat is connected with the piston rod through a connector.

Specifically, the connector comprises a connecting ring, a limiting block and a positioning block, the connecting ring is connected to one end of the piston rod, the limiting block is connected to the end face of the piston rod and presses the connecting ring, and the positioning block is sleeved outside the piston rod and fixedly connected to the sliding seat so that the connecting ring is clamped in the sliding seat.

Drawings

Fig. 1 is an exploded view of the present invention, a precision intelligent regulated flow plunger pump.

Fig. 2 is an axial sectional view of the precision intelligent flow-regulating plunger pump of the present invention.

Detailed Description

In order to explain the technical contents, structural features, and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 and 2, the precision intelligent flow-regulating plunger pump 100 of the present invention includes a base 1, a control motor 2, a nut 3, a screw rod 4, a slide 5, a piston rod 6, a piston 7, a piston sleeve 8, a control valve 9, a liquid inlet nozzle 10 and a liquid outlet nozzle 110. The base 1 is of a plate-shaped structure. The control motor 2 is arranged on the motor mounting seat 1a of the base 1, and the output end of the control motor is connected with the screw rod 4; the base 1 is provided with a guide rail 11, and the sliding seat 5 is arranged on the guide rail 11 in a sliding manner. The nut 3 is fixed on the sliding seat 5 and is in threaded connection with the screw rod 4. The screw rod 4 is connected with the output end of the control motor 2. One end of the piston rod 6 is connected with the sliding seat 5, and the other end of the piston rod is connected with the piston 7; the piston 7 is arranged in the piston sleeve 8 and forms a closed inner cavity 81; the liquid inlet nozzle 10 and the liquid outlet nozzle 110 are respectively connected with the inner cavity 81 through the control valve 9.

Referring to fig. 1 and 2, the sliding base 5 includes a sliding base 51 and a connecting base 52 fixedly connected to the sliding base 51, the sliding base 51 is fixedly connected to the nut 3 and slidably engaged with the guide rail 11, and the connecting base 52 is connected to the piston rod 6. The bottom of the sliding seat 5 is provided with a connecting block 5a and a sliding block 5b, the connecting block 5a is fixedly connected with the bottom of the sliding seat 5, and the sliding block 5b is fixedly connected with the connecting block 5 a. The slider 5b is slidably engaged with the guide rail 11. Through set up in slider 5b makes slider 5b with 11 sliding fit of guide rail, thereby can be right slide 5 leads, makes slide 5 slides more stably, and the position is more accurate to guarantee the accuracy of 7 strokes of piston, effectively improve the control accuracy of feed liquor volume and liquid output volume.

Referring to fig. 1 and fig. 2 again, the precise and intelligent flow-adjusting plunger pump 100 further includes a piston mounting seat 120, and the piston mounting seat 120 is disposed on the base 1. The piston sleeve 8 is mounted in the piston mounting seat 120. The piston mounting seat 120 includes a front seat body 121 and a rear seat body 122, wherein accommodating holes are formed in opposite sides of the front seat body 121 and the rear seat body 122, the piston sleeve 8 is wrapped by the front seat body 121 and the rear seat body 122, and the piston rod 6 penetrates through the rear seat body 122. The liquid inlet nozzle 10 and the liquid outlet nozzle 110 are installed at the front end of the front seat body 121. Specifically, a protection sleeve 130 is further disposed between the piston mounting seat 120 and the piston sleeve 8. Therefore, the piston sleeve 8 can be protected, and the stability and the precision of the structure of the piston sleeve 8 are ensured. One side of the piston mounting seat 120 facing the piston rod 6 is provided with a protection block 123. Because the rear end of piston 7 with form a back cavity between the piston sleeve 8, piston rod 6 passes can produce the clearance behind the piston mount pad 120, and impurity gets into in the back cavity easily from these clearances to influence the leakproofness between piston 7 and the piston sleeve 8, and then influence liquid feed, notes liquid and measurement, consequently, set up protection piece 123 can block impurity and get into from the clearance in the piston sleeve 8, thereby play the protection piston 7 and piston sleeve 8's effect.

Again as shown in figure 1. The base 1 is provided with a limit switch 140 forward and backward along the extending direction of the guide rail 11, the limit switch 140 can be triggered when the sliding seat 5 slides back and forth, the limit switch 140 is electrically connected with a control system, and the control system is electrically connected with the control motor 2. By arranging the limit switch 140, the positive and negative rotation of the control motor 2 can be automatically controlled, so that the piston rod 6 can be prevented from excessively extending out, the control motor 2 can continuously drive the piston rod 6 to move back and forth, and continuous liquid inlet and outlet are realized.

Referring to fig. 1 and 2, the precision intelligent flow rate adjusting plunger pump 100 further includes a protection cover 150, and the protection cover 150 is covered outside the control motor 2, the sliding seat 5 and the piston rod 6 and connected to the base 1. This ensures the structural stability and precision of control motor 2, carriage 5 and piston rod 6. A protective cover 151 is also arranged outside the control valve 9.

As shown in fig. 2, the slider 5 and the piston rod 6 are connected by a connector 160. The connector 160 includes a connecting ring 161, a limiting block 162 and a positioning block 163, the connecting ring 161 is connected to one end of the piston rod 6, the diameter of the connecting ring 161 is larger than that of the piston rod 6, and the limiting block 162 is connected to the end face of the piston rod 6 and presses the connecting ring 161 to limit the connecting ring 161 and prevent the connecting ring 161 from being separated from the piston rod 6. When the piston rod 6 overlaps in the through hole that sinks of slide 5, go-between 161 block in the through hole that sinks of slide 5, locating piece 163 overlap in piston rod 6 outer and fixedly connect in on the connecting seat 52 terminal surface of slide 5, thereby make go-between 161 block in the through hole that sinks of slide 5 realizes the connection.

Referring to fig. 1 and 2, the precise and intelligent flow-rate-adjusting plunger pump 100 further includes a valve seat 170, the valve seat 170 is disposed on the piston mounting seat 120, the valve seat 170 has a liquid inlet channel (not shown) and a liquid outlet channel (not shown) respectively communicated with the inner cavity 81, the liquid inlet nozzle 10 is communicated with the liquid inlet channel, and the liquid outlet nozzle 110 is communicated with the liquid outlet channel. The control valve 9 is arranged on the valve seat 170 and can control the on-off of the liquid inlet channel and the liquid outlet channel. The control valve 9 is a two-position three-way control valve, when liquid is fed, the liquid inlet channel is opened, the liquid outlet channel is closed, when liquid is discharged, the liquid inlet channel is closed, and the liquid outlet channel is opened.

As shown in fig. 1 and fig. 2, in addition, the precise and intelligent flow-adjusting plunger pump 100 further includes a plug fixing seat 180, the plug fixing seat 180 is disposed on the base 1 and located at the rear side of the control motor 1, and an electrical plug can be connected through the plug fixing seat 180, so as to conveniently supply power to and control the control motor. The control motor 1 in this application can control the output speed, angle, start and stop of the motor, for example, a servo motor or a stepping motor.

In summary, the following describes the working principle of the precise and intelligent flow-regulating plunger pump 100 in detail as follows:

before liquid feeding, parameters corresponding to liquid feeding amount are output through the control system, so that the control system outputs corresponding voltage signals to the control motor 2. At this moment, the control motor 2 is started to drive the screw rod 4 to rotate, the screw rod 4 drives the nut 3, and the nut 3 drives the sliding seat 5 to slide backwards along the direction of the guide rail 11. The sliding seat 5 drives the piston rod 6 to move backwards, and the piston rod 6 pulls the piston 7 to move backwards in the piston sleeve 8. Meanwhile, the control valve 9 controls the liquid inlet channel to be opened and the liquid outlet channel to be closed. At this time, the inner cavity 81 is true, so that the liquid enters the inner cavity 81 from the liquid inlet nozzle 10. Until the control motor 2 stops rotating, at the moment, the liquid inlet is complete. When liquid needs to be injected, the control motor 2 rotates reversely according to a voltage signal sent by the control system to drive the screw rod 4 to rotate, the screw rod 4 drives the nut 3, and the nut 3 drives the sliding seat 5 to slide forwards along the direction of the guide rail 11. The slide carriage 5 drives the piston rod 6 to move forward, and the piston rod 6 pushes the piston 7 to move forward in the piston sleeve 8. Meanwhile, the control valve 9 controls the liquid inlet channel to be closed and the liquid outlet channel to be opened. At this time, the liquid in the inner cavity 81 is injected from the liquid outlet nozzle 110 under the pressure.

Compared with the prior art, the utility model forms a closed inner cavity 81 by using the piston sleeve 8 and the piston 7, and the inner cavity 81 is communicated with the liquid inlet nozzle 10 and the liquid outlet nozzle 110 by the control valve 9, so that the liquid inlet and the liquid outlet can be realized by using the back-and-forth movement of the piston 7; and the piston rod 6 is connected with the sliding seat 5, the sliding seat 5 is connected with the screw rod 4 through the nut 3, so that the screw rod 4 is driven to rotate by the control motor 2, the sliding seat 5 is driven to move, the piston rod 6 is pushed to move back and forth, and the connection liquid suction and injection operation can be realized. Because the rotating speed and the number of turns of the control motor 2 can be accurately controlled through voltage signals, the rotating speed and the angle of rotation or the number of turns of the screw rod 4 can be freely and accurately controlled, so that the stroke of the piston 7 in the inner cavity 81 can be accurately controlled, and the liquid inlet amount or the liquid outlet amount can be accurately controlled. Therefore, in actual production, the metering and filling of liquid can be realized only by directly inputting parameters in the control system to control the control motor 2, so that the aim of digital control is fulfilled, the adjustment is accurate, and the control is very simple and convenient.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and the same changes and modifications as the claims of the present invention are also included.

Claims

1. The utility model provides a precision intelligent regulation flow plunger pump which characterized in that: the device comprises a base, a control motor, a nut, a screw, a sliding seat, a piston rod, a piston sleeve, a control valve, a liquid inlet nozzle and a liquid outlet nozzle; the control motor is arranged on the base, and the output end of the control motor is connected with the screw; the base is provided with a guide rail, and the sliding seat is arranged on the guide rail in a sliding manner; the nut is fixed on the sliding seat and is in threaded connection with the screw; the screw is connected with the output end of the control motor; one end of the piston rod is connected with the sliding seat, and the other end of the piston rod is connected with the piston; the piston is arranged in the piston sleeve and forms a closed inner cavity; the liquid inlet nozzle and the liquid outlet nozzle are respectively connected with the inner cavity through the control valve.

2. The precision intelligent regulated flow plunger pump of claim 1, wherein: the sliding seat comprises a sliding seat and a connecting seat connected to the sliding seat, the sliding seat is connected with the nut and is in sliding fit with the guide rail, and the connecting seat is connected with the piston rod.

3. The precision intelligent flow-regulating plunger pump of claim 1, wherein: the bottom of the sliding seat is provided with a sliding block, and the sliding block is in sliding fit with the guide rail.

4. The precision intelligent regulated flow plunger pump of claim 1, wherein: still include the piston mount pad, the piston bush install in the piston mount pad.

5. The precision intelligent regulated flow plunger pump of claim 4, wherein: the piston mounting seat comprises a front seat body and a rear seat body, the front seat body and the rear seat body wrap the piston sleeve, and the piston rod penetrates through the rear seat body.

6. The precision intelligent regulated flow plunger pump of claim 4, wherein: and a protective sleeve is also arranged between the piston mounting seat and the piston sleeve.

7. The precision intelligent flow-regulating plunger pump of claim 4, wherein: and a protection block is arranged on one side of the piston mounting seat, which faces the piston rod.

8. The precision intelligent regulated flow plunger pump of claim 1, wherein: the base is provided with limit switches forwards and backwards along the extending direction of the guide rail, the limit switches can be triggered when the sliding seat slides back and forth, the limit switches are electrically connected with a control system, and the control system is electrically connected with the control motor.

9. The precision intelligent regulated flow plunger pump of claim 1, wherein: the sliding seat is connected with the piston rod through a connector.

10. The precision intelligent regulated flow plunger pump of claim 9, wherein: the connector comprises a connecting ring, a limiting block and a positioning block, the connecting ring is connected to one end of the piston rod, the limiting block is connected to the end face of the piston rod and presses the connecting ring, and the positioning block is sleeved outside the piston rod and fixedly connected to the sliding seat so that the connecting ring is clamped in the sliding seat.