CN216094368U - Plunger pump conveying device for spraying materials - Google Patents
Plunger pump conveying device for spraying materials Download PDFInfo
- Publication number
- CN216094368U CN216094368U CN202122779437.8U CN202122779437U CN216094368U CN 216094368 U CN216094368 U CN 216094368U CN 202122779437 U CN202122779437 U CN 202122779437U CN 216094368 U CN216094368 U CN 216094368U
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- Prior art keywords
- plunger pump
- valve
- hydraulic
- plunger
- oil
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- 238000005507 spraying Methods 0.000 title claims abstract description 33
- 239000000463 material Substances 0.000 title claims abstract description 29
- 239000003921 oil Substances 0.000 claims abstract description 26
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 239000012530 fluid Substances 0.000 abstract description 10
- 239000011248 coating agent Substances 0.000 abstract description 5
- 238000000576 coating method Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000012459 cleaning agent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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Abstract
The utility model relates to a plunger pump conveying device for spraying materials, and belongs to the technical field of devices for coating liquid or other fluids on the surface. The plunger pump conveying device for spraying materials comprises a plunger pump, wherein a liquid flow outlet of the plunger pump is externally connected with a nozzle through a pipe valve; the hydraulic control system is characterized by further comprising a hydraulic oil cylinder, a reversing valve, a precision flow control valve, a flow valve, a hydraulic pump, an unloading valve and an oil storage tank, wherein an oil inlet and an oil outlet of the hydraulic oil cylinder are communicated with the hydraulic pump and the oil tank sequentially through the flow valve, the precision flow control valve, the reversing valve, the unloading valve and an oil pipe to form a hydraulic loop, the precision flow control valve is connected with an electromagnetic valve in parallel to serve as a bypass, and a piston rod of the hydraulic oil cylinder extends into the plunger pump to serve as a plunger rod. Because the piston rod of the hydraulic oil cylinder extends into the plunger pump to be used as the plunger rod, the driving and the precise control of the plunger pump can be realized by fully utilizing the existing hydraulic circuit, and the safety, the reliability and the accuracy of spraying and coating fluid in the field are improved. When two sets of plunger pump conveying devices for spraying materials are used and connected in parallel, precise conveying of double-component spraying materials can be completed.
Description
Technical Field
The utility model relates to a plunger pump conveying device for spraying materials, and belongs to the technical field of devices for coating liquid or other fluids on the surface.
Background
It is known to spray a coating fluid spray (e.g., paint, size, or other material) by drawing in the fluid through a pump, pressurizing the fluid and delivering the fluid to a nozzle, and spraying the fluid through (or atomizing the fluid) the nozzle. The plunger pump is a commonly used material spraying pressurization delivery pump, the plunger pumps generally adopted in the existing field spraying operation are electric and pneumatic, a power supply or an air source for field operation is not easy to guarantee, and cables and air pipes are easy to damage due to dragging, so that the safety and the reliability are not high.
Disclosure of Invention
The technical problem to be solved by the utility model is as follows: improve current plunger pump and carry the material spraying device, improve its security and reliability.
The technical scheme provided by the utility model for solving the technical problems is as follows: a plunger pump conveying device for spraying materials comprises a plunger pump, wherein a liquid flow outlet of the plunger pump is externally connected with a nozzle through a pipe valve; the hydraulic control system is characterized by further comprising a hydraulic oil cylinder, a reversing valve, a precision flow control valve, a flow valve, a hydraulic pump, an unloading valve and an oil storage tank, wherein an oil inlet and an oil outlet of the hydraulic oil cylinder are communicated with the hydraulic pump and the oil tank sequentially through the flow valve, the precision flow control valve, the reversing valve, the unloading valve and an oil pipe to form a hydraulic loop, the precision flow control valve is connected with an electromagnetic valve and a bypass oil pipe in parallel to form a bypass, and a piston rod of the hydraulic oil cylinder extends into the plunger pump to serve as a plunger rod.
Furthermore, the plunger pump conveying devices for spraying materials are provided with two sets, and the two sets of hydraulic loops of the plunger pump conveying devices for spraying materials are connected in parallel.
Furthermore, a stay wire displacement sensor is arranged at the bottom of the plunger pump, and a stay wire of the stay wire displacement sensor is connected with the outer surface of the piston rod.
The utility model has the beneficial effects that: as the piston rod of the hydraulic oil cylinder is creatively extended into the plunger pump to be used as the plunger rod, the driving and the precise control of the plunger pump can be realized by fully utilizing the existing hydraulic circuit. Thereby improving the safety, reliability and accuracy of spraying the coating fluid in the field. In particular, when two sets of plunger pump conveying devices for spraying materials are used and connected in parallel, precise conveying of double-component spraying materials can be completed.
Drawings
The plunger pump delivery device for injecting materials of the present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a control configuration diagram of the plunger pump delivery device for injection according to the first embodiment in an initial state.
Fig. 2 is a control configuration diagram of the plunger pump delivery device for spraying according to the first embodiment in a spraying state.
Fig. 3 is a control configuration diagram of the plunger pump delivery device for material injection according to the first embodiment in a cleaning state.
Fig. 4 is a control configuration diagram of the plunger pump delivery device for injection according to the second embodiment in the initial state.
Detailed Description
Example one
As shown in fig. 1, the plunger pump delivery device for spraying in this embodiment includes a plunger pump 8, and a liquid outlet of the plunger pump 8 is connected to an external nozzle (not shown) through a pipe valve. The plunger pump conveying device for spraying in the embodiment further comprises a hydraulic oil cylinder 9, a reversing valve 3, a precision flow control valve 4, a flow valve 6, a hydraulic pump 1, an unloading valve DT3 and an oil storage tank 10. The oil inlet and outlet of the hydraulic oil cylinder 9 are communicated with the hydraulic pump 1 and the oil tank 10 through a flow valve 6, a precision flow control valve 4, a reversing valve 3, an unloading valve DT3 and an oil pipe in sequence to form a hydraulic loop, and an electromagnetic valve 5 and a bypass oil pipe are connected in parallel beside the precision flow control valve 4 to form a bypass of the precision flow control valve 4. As can be seen from fig. 1, the piston rod 11 of the hydraulic cylinder 9 extends into the plunger pump 8 as a plunger rod of the plunger pump 8. The reversing valve 3 comprises two channels, and the switching between the spraying working condition and the cleaning working condition is realized through switching. The solenoid valve 5 is used for cleaning the working condition and realizing the rapid movement of the plunger pump 8. The flow valve 6 is used for adjusting the maximum flow of the whole hydraulic circuit, is set once before use, and does not need to be adjusted in the use process.
The following conditions were used:
1. initial state
As shown in fig. 1, the solenoid valve 5 is in a power-off state, and the hydraulic circuit is in an unloading-ready state.
2. Spray coating conditions
As shown in FIG. 2, when the unloader valve DT3 is energized, the hydraulic circuit builds pressure; the electromagnetic valve 5 is in a power-off state, after the reversing valve 3 is powered on, one channel is opened, the other channel is closed, oil pumped by the hydraulic pump 1 enters a cavity on one side of the hydraulic oil cylinder 9 through one channel of the reversing valve 3, and the hydraulic oil cylinder 9 ejects a piston rod 11 thereof according to the set speed of the precision speed regulating valve 4 and drives the plunger pump 8 to eject spray materials in the cavity on one side; then one channel of the reversing valve 3 is closed and the other channel is opened, the oil pumped by the hydraulic pump 1 enters the other side cavity of the hydraulic oil cylinder 9 through the other channel of the reversing valve 3, and the hydraulic oil cylinder 9 retracts the piston rod 11 thereof according to the set speed of the precision speed regulating valve 4 and drives the plunger pump 8 to suck new sprayed material into the cavity on one side thereof; the above operation is repeated, and the piston rod of the hydraulic oil cylinder 9 moves repeatedly to drive the plunger pump 8 to suck and spray the spray material and then spray the spray material.
3. Cleaning conditions
As shown in fig. 3, the electromagnetic valve 5 is energized, oil pumped by the hydraulic pump 1 directly enters the two side chambers of the hydraulic cylinder 9 through the electromagnetic valve 5, the hydraulic cylinder 9 rapidly ejects and withdraws the piston rod 11 thereof according to the set speed of the speed regulating valve 6 and drives the plunger pump 8 to rapidly eject and withdraw the cleaning agent in the chamber on one side thereof, and the plunger pump 8 rapidly finishes sucking and ejecting the cleaning agent, thereby finishing cleaning the inner chamber of the plunger pump 8.
Example two
The embodiment is an improvement on the basis of the first embodiment, and is formed by two sets of plunger pump conveying devices for spraying materials of the first embodiment, and two sets of hydraulic circuits of the plunger pump conveying devices are connected in parallel; this embodiment thus makes it possible to deliver a two-component spray. The plunger pump delivery device for injection according to the present embodiment is modified as shown in fig. 4 except that the same configuration is used for the plunger pump delivery device for injection according to the first embodiment, the hydraulic pump 1, the unloading valve DT3, and the oil tank 10 are shared by two sets of hydraulic circuits, and the reference numerals for the respective parts in the 2 nd set of hydraulic circuits are: plunger pump 8 ', hydraulic cylinder 9 ', piston rod 11 ', reversing valve 3 ', precision flow control valve 4 ', flow valve 6 ' and solenoid valve 5 '. And the bottom parts of the plunger pumps 8 and 8 'are provided with stay wire displacement sensors 7 and 7', and stay wires of the stay wire displacement sensors 7 and 7 'are connected with the outer surfaces of the piston rods 11 and 11'. The wire displacement controllers 7 and 7 'are used for detecting the displacement and the speed of the hydraulic oil cylinders 9 and 9' and the plunger pumps 8 and 8 'and displaying the real-time positions of the plunger pumps 8 and 8'.
In the embodiment, the stay wire displacement sensors 7 and 7 ' are added, so that the real-time displacement and speed of the two hydraulic oil cylinders 9 and 9 ' and the two plunger pumps 8 and 8 ' of the two sets of conveying devices can be detected in real time. Therefore, feedback data can be provided for the proportioning of the bi-component spraying material, the delivery flow of the two plunger pumps 8 and 8', and the like, so that the delivery, proportioning and spraying of the bi-component spraying material can be accurately controlled.
2. Hydraulic power enters the control system of the plunger pumps 8 and 8' through the one-way valve 2.
3. The direction change valves 3, 3 'control the direction of the plunger pumps 8, 8'.
4. The precise flow control valves 4 and 4 'control the flow of the plunger pumps 8 and 8' and can control the proportioning relation of the dynamic process of two kinds of spraying materials (bi-component spraying materials).
The above description is only a preferred embodiment of the present invention, but the present invention is not limited to this, for example, the wire displacement sensor 7 may be installed in the conveying device of the first embodiment. All equivalents and modifications of the inventive concept and its technical solutions are intended to be included within the scope of the present invention.
Claims (3)
1. A plunger pump conveying device for spraying materials comprises a plunger pump, wherein a liquid flow outlet of the plunger pump is externally connected with a nozzle through a pipe valve; the hydraulic control system is characterized by further comprising a hydraulic oil cylinder, a reversing valve, a precision flow control valve, a flow valve, a hydraulic pump, an unloading valve and an oil storage tank, wherein an oil inlet and an oil outlet of the hydraulic oil cylinder are communicated with the hydraulic pump and the oil tank sequentially through the flow valve, the precision flow control valve, the reversing valve, the unloading valve and an oil pipe to form a hydraulic loop, the precision flow control valve is connected with an electromagnetic valve and a bypass oil pipe in parallel to form a bypass, and a piston rod of the hydraulic oil cylinder extends into the plunger pump to serve as a plunger rod.
2. The plunger pump delivery device for dispensing of claim 1, further comprising: the plunger pump conveying devices for spraying materials are provided with two sets, and two hydraulic loops of the two sets of plunger pump conveying devices for spraying materials are connected in parallel; and a stay wire displacement sensor is arranged at the bottom of the plunger pump, and a stay wire of the stay wire displacement sensor is connected with the outer surface of the piston rod.
3. The plunger pump delivery device for dispensing of claim 1, further comprising: and a stay wire displacement sensor is arranged at the bottom of the plunger pump, and a stay wire of the stay wire displacement sensor is connected with the outer surface of the piston rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122779437.8U CN216094368U (en) | 2021-11-12 | 2021-11-12 | Plunger pump conveying device for spraying materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122779437.8U CN216094368U (en) | 2021-11-12 | 2021-11-12 | Plunger pump conveying device for spraying materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216094368U true CN216094368U (en) | 2022-03-22 |
Family
ID=80716215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122779437.8U Active CN216094368U (en) | 2021-11-12 | 2021-11-12 | Plunger pump conveying device for spraying materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216094368U (en) |
-
2021
- 2021-11-12 CN CN202122779437.8U patent/CN216094368U/en active Active
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