CN109210022B - Hydraulic system for cover making machine - Google Patents
Hydraulic system for cover making machine Download PDFInfo
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- CN109210022B CN109210022B CN201811257283.2A CN201811257283A CN109210022B CN 109210022 B CN109210022 B CN 109210022B CN 201811257283 A CN201811257283 A CN 201811257283A CN 109210022 B CN109210022 B CN 109210022B
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- 238000001816 cooling Methods 0.000 claims description 28
- 238000001914 filtration Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 238000005086 pumping Methods 0.000 claims description 16
- 239000007788 liquid Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 4
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 abstract description 9
- 238000000748 compression moulding Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 441
- 238000001514 detection method Methods 0.000 description 8
- 239000010720 hydraulic oil Substances 0.000 description 7
- 230000003749 cleanliness Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010295 mobile communication Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000004092 self-diagnosis Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/021—Installations or systems with accumulators used for damping
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/02—Servomotor systems with programme control derived from a store or timing device; Control devices therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20576—Systems with pumps with multiple pumps
- F15B2211/20592—Combinations of pumps for supplying high and low pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/21—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge
- F15B2211/212—Systems with pressure sources other than pumps, e.g. with a pyrotechnical charge the pressure sources being accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/615—Filtering means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/60—Circuit components or control therefor
- F15B2211/62—Cooling or heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/865—Prevention of failures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/87—Detection of failures
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention provides a hydraulic system for a cap making machine, which realizes the die assembly action of a forming device by using a medium-pressure loop device and the compression molding action of the forming device by using the medium-pressure loop device through the combined design of the high-pressure loop device, the medium-pressure loop device and the low-pressure loop device, and realizes the die stripping action of the forming device by using the low-pressure loop device.
Description
Technical Field
The present invention relates to a hydraulic system, and more particularly, to a hydraulic system for a capping machine.
Background
At present, the existing cover making machine mainly uses a low-speed machine, adopts a common hydraulic system for control, adopts a combination mode of a constant displacement pump and a common motor, and adopts a common hydraulic valve for flow and pressure control, or adopts a differential technology, but the structure is simple, the technical level of the foreign high-speed cover making machine cannot be reached, the equipment of the high-speed cover making machine mainly depends on foreign import, and at present, the existing hydraulic control system generally adopts a differential loop effect, has low speed and cannot meet the operation of the high-speed machine; the loop impact is large, the pressure fluctuation is large, and the back pressure vibration of the oil return is large; the hydraulic control system is easy to cause oil stringing phenomenon of high and medium oil paths; meanwhile, the technology of hydraulic control of the capping machine in the current market is not standard, and all large-scale hydraulic enterprises do not pay attention to the market, so that most of current hydraulic systems are designed and manufactured by small companies in workshops, uniform design standards are not available, the quality of products is uneven, the functional aspect is just primary opening and closing control, the intelligent control requirement cannot be met, and remote intelligent monitoring and control on hydraulic equipment of the capping machine cannot be performed.
Disclosure of Invention
The invention aims to solve the technical problem of providing a hydraulic system for a cover making machine, which has the advantages of high running speed, high reliability and stability and high production efficiency.
In order to solve the technical problems, the hydraulic system for the capping machine comprises a forming device, a high-pressure loop device, a medium-pressure loop device, a low-pressure loop device and an oil tank, wherein the forming device is provided with a hydraulic cylinder and a three-position four-way reversing valve, the hydraulic cylinder is provided with a first oil pressure cavity and a second oil pressure cavity, and the three-position four-way reversing valve is provided with a first oil port, a second oil port, a third oil port and a fourth oil port;
the high-pressure loop device comprises a high-pressure pump set, a high-pressure oil supply way and a high-pressure oil return way, an oil inlet of the high-pressure oil supply way is connected with the high-pressure pump set, the high-pressure pump set can lead oil in the oil tank to the high-pressure oil supply way, an oil outlet of the high-pressure oil supply way is communicated with the first oil pressure cavity through the first oil port and the fourth oil port in sequence, an oil inlet of the high-pressure oil return way is communicated with the second oil pressure cavity, an oil outlet of the high-pressure oil return way is communicated with the oil tank, a high-pressure oil supply control assembly is arranged on the high-pressure oil supply way, and a high-pressure oil return control assembly is arranged on the high-pressure oil return way;
the medium-pressure loop device comprises a medium-pressure pump group, a medium-pressure oil supply way and a medium-pressure oil return way, wherein an oil inlet of the medium-pressure oil supply way is connected with the medium-pressure pump group, the medium-pressure pump group can lead oil in the oil tank to the medium-pressure oil supply way, an oil outlet of the medium-pressure oil supply way is communicated with the first oil pressure cavity through the second oil port and the fourth oil port in sequence, an oil inlet of the medium-pressure oil return way is communicated with the second oil pressure cavity, an oil outlet of the medium-pressure oil return way is communicated with the oil tank, a medium-pressure oil supply control component is arranged on the medium-pressure oil supply way, and a medium-pressure oil return control component is arranged on the medium-pressure oil return way;
the low-pressure loop device comprises a medium-pressure pump set, a low-pressure oil supply way and a low-pressure oil return way, an oil inlet of the low-pressure oil supply way is connected with the medium-pressure pump set, the medium-pressure pump set can lead oil in the oil tank to the low-pressure oil supply way, an oil outlet of the low-pressure oil supply way is communicated with a second oil pressure cavity, an oil inlet of the low-pressure oil return way sequentially passes through a third oil port, a fourth oil port is communicated with the first oil pressure cavity, an oil outlet of the low-pressure oil return way is communicated with the oil tank, a low-pressure oil supply control assembly is arranged on the low-pressure oil supply way, and a low-pressure oil return control assembly is arranged on the low-pressure oil return way.
Preferably, the high-pressure oil supply control component is sequentially provided with a one-way valve, a first speed regulating valve and a first flow sensor on the high-pressure oil supply path according to the oil supply direction, a first energy accumulator, a first pressure sensor, a first pressure relay, a first pressure gauge and a high-pressure oil return bypass are arranged on the high-pressure oil supply path between the one-way valve and the first speed regulating valve, the high-pressure oil return bypass is communicated with the oil tank, a first electromagnetic ball valve is arranged on the high-pressure oil return bypass, a first overflow valve is connected between the high-pressure oil supply path on the oil inlet side of the one-way valve and the high-pressure oil return bypass on the oil outlet side of the electromagnetic ball valve, the oil inlet of the first overflow valve is connected with the high-pressure oil supply path, and the oil outlet of the first overflow valve is connected with the high-pressure oil return bypass; an electro-hydraulic proportional overflow valve is connected between the first overflow valve and a high-pressure oil return bypass at one side of an oil outlet of the first electromagnetic ball valve, an oil inlet of the electro-hydraulic proportional overflow valve is connected with the first overflow valve, an oil outlet of the electro-hydraulic proportional overflow valve is connected with the high-pressure oil return bypass, and a proportional amplifier is arranged at the electro-hydraulic proportional overflow valve;
the high-pressure oil return control assembly is sequentially provided with a third flow sensor and a second overflow valve on the high-pressure oil return path according to the oil return direction, and a third pressure gauge and a third pressure sensor are arranged on the high-pressure oil return path between the second overflow valve and the third flow sensor;
the first speed regulating valve, the first flow sensor, the first pressure relay, the first electromagnetic ball valve, the electro-hydraulic proportional overflow valve, the third flow sensor and the third pressure sensor are respectively connected with an electric control system, and the electric control system is connected with a control terminal through a wireless network.
Preferably, the medium pressure oil supply control component is provided with a one-way throttle valve, a two-way direction valve, a second speed regulating valve and a second flow sensor in sequence on the medium pressure oil supply path according to the oil supply direction, the two-way direction valve is provided with a second electromagnetic ball valve, the second electromagnetic ball valve is used for realizing valve core opening and closing of the two-way direction valve, a medium pressure oil return bypass is arranged on the medium pressure oil supply path between an oil outlet of the medium pressure pump set and an oil inlet of the one-way throttle valve, the medium pressure oil return bypass is communicated with the oil tank, the medium pressure oil return bypass is provided with a two-way overflow valve, the two-way overflow valve is provided with a third electromagnetic ball valve, the third electromagnetic ball valve is used for realizing valve core opening and closing of the two-way overflow valve, and the medium pressure oil supply path between the second speed regulating valve and the second flow sensor is provided with a second accumulator, a second pressure relay, a third pressure relay and a second pressure gauge;
the medium-pressure oil return control assembly is sequentially provided with the third flow sensor and the second overflow valve on the medium-pressure oil return path according to the oil return direction, and the medium-pressure oil return path between the second overflow valve and the third flow sensor is provided with the third pressure gauge and the third pressure sensor;
the two-way direction valve, the second speed regulating valve, the second flow sensor, the second electromagnetic ball valve, the third electromagnetic ball valve, the second pressure sensor, the second pressure relay and the third pressure relay are respectively connected with an electric control system.
Preferably, the low-pressure oil supply control component is sequentially provided with the one-way throttle valve, the second overflow valve, the third flow sensor and the third energy accumulator on the low-pressure oil supply path according to the oil supply direction, the medium-pressure oil supply path between the second overflow valve and the third flow sensor is provided with the third pressure gauge and the third pressure sensor, the low-pressure oil supply path between the oil outlet of the medium-pressure pump set and the oil inlet of the one-way throttle valve is provided with a low-pressure oil return bypass, the low-pressure oil return bypass is communicated with the oil tank, the low-pressure oil return bypass is provided with the two-way overflow valve, the two-way overflow valve is provided with the third electromagnetic ball valve, and the third electromagnetic ball valve is used for realizing valve element opening and closing of the two-way overflow valve;
the low-pressure oil return control assembly is sequentially provided with a damping device and a fourth flow sensor on the low-pressure oil return path according to the oil return direction; the fourth flow sensor is connected with an electrical control system.
Preferably, the low-pressure oil return path is provided with at least one group of horizontal oil return path and vertical oil return path, the vertical oil return path is perpendicular to the horizontal oil return path, the damping device is arranged at the joint of the horizontal oil return path and the vertical oil return path, and the direction of the buffering acting force of the damping device is opposite to the oil return direction of the horizontal oil return path.
Preferably, the damping device is a spring damper or a plunger accumulator.
Preferably, the hydraulic system for the capping machine further comprises a heating device, wherein the heating device is arranged in the oil tank and is positioned at one side close to the oil pumping end of the high-pressure pump group and the oil pumping end of the medium-pressure pump group; the heating device is connected with an electrical control system, and the electrical control system is connected with a control terminal through a wireless network.
Preferably, the hydraulic system for the capping machine further comprises a cooling circulation filtering device, the cooling circulation filtering device is arranged on the oil tank and is positioned at one side far away from the oil pumping end of the high-pressure pump set and the oil pumping end of the medium-pressure pump set, the cooling circulation filtering device is provided with a cooling filtering loop, an oil inlet and an oil outlet of the cooling filtering loop are communicated with the oil tank, a first oil filter, a cooling filtering pump set, a water cooler, a second oil filter and a third oil filter are sequentially arranged on the cooling filtering loop according to the flowing direction of oil, the first oil filter is primary filtering, the second oil filter is medium-grade filtering, the third oil filter is high-grade filtering, the second oil filter and the third oil filter are both provided with a blocking alarm device, and the water cooler is connected with a cooling water source through an electromagnetic valve; the blocking alarm device is connected with an electrical control system, and the electrical control system is connected with the control terminal through a wireless network.
Preferably, a magnetic filter device is arranged at the oil outlet of the low-pressure oil return circuit, and the magnetic filter device is arranged in the oil tank, is positioned at one side far away from the oil pumping end of the high-pressure pump unit and the oil pumping end of the medium-pressure pump unit, and is close to the oil inlet of the cooling filter circuit.
Preferably, the oil tank is provided with a temperature sensor, a liquid level sensor, an air filter and a liquid level meter; the temperature sensor and the liquid level sensor are respectively connected with an electrical control system, and the electrical control system is connected with a control terminal through a wireless network.
Compared with the prior art, the hydraulic system for the cover making machine has the following beneficial effects:
1. according to the invention, through the combined design of the high-voltage loop device, the medium-voltage loop device and the low-voltage loop device, the die assembly action of the forming device is realized by utilizing the medium-voltage loop device, the compression molding action of the forming device is realized by utilizing the high-voltage loop device, the demolding action of the forming device is realized by utilizing the low-voltage loop device, and each device part can be controlled independently, so that the bottle cap machine has the advantages of high running speed, high reliability and stability and improvement on the production efficiency of the bottle cap machine.
2. The damping device is additionally arranged on the low-pressure oil return path, so that the fluctuation of oil return pressure can be reduced during demolding and oil return, the low-pressure oil return path has the advantage of small demolding impact, and meanwhile, the damping device has a protection effect on an oil cylinder of an oil distribution disc of a main machine rotating body.
3. The medium-pressure oil supply way adopts the one-way throttle valve, namely the one-way valve is connected with the throttle valve in parallel, so that the problem of oil stringing between the high-pressure loop and the medium-pressure loop can be solved.
4. The hydraulic system can automatically monitor the flow, pressure, temperature and oil cleanliness of each branch through the flow sensor, the pressure relay, the temperature sensor, the liquid level sensor and the like, can locally or remotely carry out linkage control through the control terminal (namely a central control room or mobile communication equipment), is beneficial to helping equipment manufacturers to maintain, track and establish a database, is beneficial to real-time production monitoring and control of equipment manufacturers, has a stronger fault self-diagnosis function, and realizes intelligent control.
5. According to the invention, through the arrangement of the cooling circulation filtering device, the cleanliness of oil can be effectively ensured, meanwhile, the temperature of hydraulic oil is effectively reduced through the design of the cooling circulation filtering device, the viscosity of the hydraulic oil is ensured to meet the use requirement, the cyclic utilization of the hydraulic oil is realized, the cost is saved, and the effective utilization rate of resources is improved.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.
Fig. 1 is a schematic structural view of a hydraulic system for a capping machine according to the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1, a preferred embodiment of a hydraulic system for a capping machine according to the present invention includes a forming device 100, a high-pressure circuit device, a medium-pressure circuit device, a low-pressure circuit device, and an oil tank 200, where the forming device 100 is provided with a hydraulic cylinder 101 and a three-position four-way reversing valve 102, the hydraulic cylinder 101 is provided with a first oil pressure chamber 103 and a second oil pressure chamber 104, and the three-position four-way reversing valve 102 is provided with a first oil port 105, a second oil port 106, a third oil port 107, and a fourth oil port 108.
The high-pressure loop device comprises a high-pressure pump set 301, a high-pressure oil supply path 302 and a high-pressure oil return path 303, wherein an oil inlet of the high-pressure oil supply path 302 is connected with the high-pressure pump set 301, oil in the oil tank 200 can be led to the high-pressure oil supply path 302 by the high-pressure pump set 301, an oil outlet of the high-pressure oil supply path 302 is communicated with the first oil pressure cavity 103 through the first oil port 105 and the fourth oil port 108 in sequence, an oil inlet of the high-pressure oil return path 303 is communicated with the second oil pressure cavity 104, an oil outlet of the high-pressure oil return path 303 is communicated with the oil tank 200, a high-pressure oil supply control assembly is arranged on the high-pressure oil supply path 302, and a high-pressure oil return control assembly is arranged on the high-pressure oil return path 303.
The medium-pressure loop device comprises a medium-pressure pump set 401, a medium-pressure oil supply path 402 and a medium-pressure oil return path 403, wherein an oil inlet of the medium-pressure oil supply path 402 is connected with the medium-pressure pump set 401, the medium-pressure pump set 401 can guide oil in the oil tank 200 to the medium-pressure oil supply path 402, an oil outlet of the medium-pressure oil supply path 402 is communicated with the first oil pressure cavity 103 through the second oil port 106 and the fourth oil port 108 in sequence, an oil inlet of the medium-pressure oil return path 403 is communicated with the second oil pressure cavity 104, an oil outlet of the medium-pressure oil return path 403 is communicated with the oil tank 200, a medium-pressure oil supply control component is arranged on the medium-pressure oil supply path 402, and a medium-pressure oil return control component is arranged on the medium-pressure oil return path 403.
The low-pressure loop device comprises the medium-pressure pump set 401, a low-pressure oil supply path 501 and a low-pressure oil return path 502, an oil inlet of the low-pressure oil supply path 501 is connected with the medium-pressure pump set 401, the medium-pressure pump set 401 can guide oil in the oil tank 200 to the low-pressure oil supply path 501, an oil outlet of the low-pressure oil supply path 501 is communicated with the second oil pressure cavity 104, an oil inlet of the low-pressure oil return path 502 is communicated with the first oil pressure cavity 103 through the third oil port 107 and the fourth oil port 108 in sequence, an oil outlet of the low-pressure oil return path 502 is communicated with the oil tank 200, a low-pressure oil supply control component is arranged on the low-pressure oil supply path 501, and a low-pressure oil return control component is arranged on the low-pressure oil return path 502.
Therefore, the invention realizes the die assembly action of the forming device by the medium-pressure loop device and the compression molding action of the forming device by the high-pressure loop device through the combined design of the high-pressure loop device, the medium-pressure loop device and the low-pressure loop device, and realizes the die stripping action of the forming device by the low-pressure loop device, and each device part can be controlled independently.
The high-pressure oil supply control component is provided with a check valve 304, a first speed regulation valve 305 and a first flow sensor 306 in sequence on the high-pressure oil supply path 302 according to the oil supply direction, a first accumulator 307, a first pressure sensor 308, a first pressure relay 309, a first pressure gauge 310 and a high-pressure oil return bypass 311 are arranged on the high-pressure oil supply path 302 between the check valve 304 and the first speed regulation valve 305, the high-pressure oil return bypass 311 is communicated with the oil tank 200, a first electromagnetic ball valve 312 is arranged on the high-pressure oil return bypass 311, a first overflow valve 313 is connected between the high-pressure oil supply path 302 on the oil inlet side of the check valve 304 and the high-pressure oil return bypass 311 on the oil outlet side of the first electromagnetic ball valve 312, the oil inlet of the first overflow valve 313 is connected with the high-pressure oil supply path 302, and the oil outlet of the first overflow valve 313 is connected with the high-pressure oil return bypass 311; an electro-hydraulic proportional relief valve 314 is connected between the first relief valve 313 and the high-pressure return oil bypass 311 at one side of the oil outlet of the first electromagnetic ball valve 312, an oil inlet of the electro-hydraulic proportional relief valve 314 is connected with the first relief valve 313, an oil outlet of the electro-hydraulic proportional relief valve 314 is connected with the high-pressure return oil bypass 311, and a proportional amplifier 315 is arranged at the electro-hydraulic proportional relief valve 314.
The high-pressure oil return control assembly is sequentially provided with a third flow sensor 316 and a second overflow valve 317 on the high-pressure oil return path 303 according to the oil return direction, and a third pressure gauge 318 and a third pressure sensor 319 are arranged on the high-pressure oil return path 303 between the second overflow valve 317 and the third flow sensor 316.
The first speed regulating valve 305, the first flow sensor 306, the first pressure sensor 308, the first pressure relay 309, the first electromagnetic ball valve 312, the electro-hydraulic proportional overflow valve 314, the third flow sensor 316 and the third pressure sensor 319 are respectively connected with an electric control system, and the electric control system is connected with a control terminal through a wireless network.
The check valve 304 is preferably a threaded plug-in check valve, the first speed valve 305 is preferably a threaded plug-in speed valve, the first electromagnetic ball valve 312 is preferably a threaded plug-in electromagnetic ball valve, the first overflow valve 313 is preferably a threaded plug-in overflow valve, and the second overflow valve 317 is preferably a threaded plug-in overflow valve.
Wherein the check valve 304 is used to prevent the reverse flow of oil on the high pressure oil supply path 302; the first flow sensor 306 can detect the flow of the oil supply and convert the flow into an electric signal to be sent to the electric control system; the electrical control system adjusts the flow rate of the high-pressure oil supply path 302 through the first speed regulating valve 305 in real time according to the signal sent by the first flow rate sensor 306 and eliminates the influence of load change on the flow rate of the high-pressure oil supply path 302; the first accumulator 307 plays a role in assisting oil supply, when the oil amount of the high-pressure loop device is larger than the output flow of the high-pressure pump set 301, insufficient flow is provided by the first accumulator 307, and when the oil amount of the hydraulic system is smaller than the output flow of the high-pressure pump set 301, redundant flow is supplemented into the first accumulator 307, and meanwhile, the forming device 100 plays a role in buffering and shock absorption in the process of fast running or fast stopping; the first pressure sensor 308 can detect the oil pressure of the high-pressure oil supply path 302 and convert the oil pressure into an electric signal to be sent to an electric control system; the electrical control system controls the first electromagnetic ball valve 312 through the first pressure relay 309 according to the signal sent by the first pressure sensor 308, and the first electromagnetic ball valve 312 can control the on-off of the high-pressure oil return bypass 311; the first pressure gauge 310 is used for measuring and displaying the oil pressure value of the high-pressure oil supply path; the first relief valve 313 can connect the high-pressure oil supply path 302 with the high-pressure return bypass 311 according to a set threshold value thereof, so that the oil on the high-pressure oil supply path 302 flows to the oil tank 200 to perform a constant-pressure relief function; the electro-hydraulic proportional overflow valve 314 can adjust the opening of a valve according to a signal sent by an electrical control system, and can proportionally set the overflow flow, and the electro-hydraulic proportional overflow valve 314 is used as a pilot valve, so that the flow is ensured to be large, and meanwhile, the control parameters of the system can be automatically kept within a set range, so that the control of the system is more precise; the third flow sensor 316 can detect the flow of the oil returned from the high-pressure oil return channel 303, convert the flow into an electrical signal, and send the electrical signal to the electrical control system; the second overflow valve 317 can flow the oil on the high-pressure oil return path 303 to the oil tank 200 according to a set threshold value thereof, so as to perform a constant-pressure overflow function; the third pressure sensor 319 can detect the oil pressure of the high-pressure oil return line 303 and convert the oil pressure into an electric signal to be sent to the electric control system; the third pressure gauge 318 is used for measuring and displaying the oil pressure value of the high-pressure oil return 303.
The high-pressure pump set 301 includes a coupling, a variable frequency motor, a vane pump and an oil suction filter, the oil suction filter is disposed at one side of an oil inlet of the vane pump, the variable frequency motor is connected with the vane pump through the coupling, the vane pump is a high-pressure vane pump with a special rotation speed, and the variable frequency motor is adopted, so that the output flow can be changed according to the system requirement, and the energy is saved; meanwhile, the variable frequency motor is connected with the electric control system, the electric control system is connected with the control terminal through a wireless network, the flow value converted by a formula of the rotating speed in the encoder of the variable frequency motor and the detection value of the first flow sensor 306 are subjected to feedback detection, the electric control system can send the running condition of the variable frequency motor to the control terminal according to the detection result, if the detection result is abnormal, an alarm is given, the self-fault diagnosis function of the variable frequency motor is realized, and the reliability of the hydraulic system is further ensured.
Illustratively, the medium pressure oil supply control component is sequentially provided with a one-way throttle valve 404, a two-way direction valve 405, a second speed regulating valve 406 and a second flow sensor 407 on the medium pressure oil supply path 402 according to the oil supply direction, the two-way direction valve 405 is provided with a second electromagnetic ball valve 408, a medium pressure oil return bypass 409 is arranged on the medium pressure oil supply path between the oil outlet of the medium pressure pump set 401 and the oil inlet of the one-way throttle valve 404, the medium pressure oil return bypass 409 is communicated with the oil tank 200, the medium pressure oil return bypass 409 is provided with a two-way overflow valve 410, the two-way overflow valve 410 is provided with a third electromagnetic ball valve 411, and the medium pressure oil supply path 402 between the second speed regulating valve 406 and the second flow sensor 407 is provided with a second accumulator 412, a second pressure sensor 413, a second pressure relay 414, a third pressure relay 415 and a second pressure gauge 416.
The medium pressure oil return control assembly is sequentially provided with the third flow sensor 316 and the second overflow valve 317 on the medium pressure oil return path 403 according to the oil return direction, and the medium pressure oil return path 403 between the second overflow valve 317 and the third flow sensor 316 is provided with the third pressure gauge 318 and the third pressure sensor 319.
The two-way direction valve 405, the second speed regulating valve 406, the second flow sensor 407, the second electromagnetic ball valve 408, the third electromagnetic ball valve 411, the second pressure sensor 413, the second pressure relay 414 and the third pressure relay 415 are respectively connected with an electric control system, and the electric control system is connected with a control terminal through a wireless network.
The one-way throttle valve 404 is preferably a threaded plug-in one-way throttle valve, the second speed valve 406 is preferably a threaded speed valve, the two-way direction valve 405 is preferably a two-way cartridge direction valve, and the two-way overflow valve 410 is preferably a two-way cartridge overflow valve.
The one-way throttle valve 404 (i.e. the one-way valve is connected in parallel with the throttle valve) is used for controlling the oil supply flow of the medium pressure oil supply path 402 and preventing the oil on the medium pressure oil supply path 402 from flowing reversely, so that the problem of oil stringing between the high pressure loop and the medium pressure loop can be effectively solved; the two-way directional valve 405 controls the oil flow to the medium pressure oil supply path or the low pressure oil supply path by using the replacement of the flow path; the second flow sensor 407 can detect the flow of the oil supply and convert the flow into an electric signal to be sent to an electric control system; the electrical control system adjusts the flow rate of the medium-pressure oil supply path 402 through the second speed regulating valve 406 in real time according to the signal sent by the second flow rate sensor 407 and eliminates the influence of the load change on the flow rate of the medium-pressure oil supply path 402; the electrical control system controls the second electromagnetic ball valve 408 through the second pressure relay 414 according to the signal sent by the second pressure sensor 413, and the second electromagnetic ball valve 408 can realize the valve core opening and closing of the two-way directional valve 405; the two-way overflow valve 410 can connect the medium pressure oil supply path 402 with the medium pressure oil return bypass 409 according to the set threshold value, so that the oil on the medium pressure oil supply path 402 flows to the oil tank 200 to perform the constant pressure overflow function; the electrical control system controls the third electromagnetic ball valve 411 through the third pressure relay 415 according to the signal sent by the second pressure sensor 413, and the third electromagnetic ball valve 411 can realize the valve core opening and closing of the two-way overflow valve 410; the second accumulator 412 plays a role in assisting oil supply, when the oil consumption of the middle pressure loop device is greater than the output flow of the middle pressure pump set 401, insufficient flow is provided by the second accumulator 412, and when the oil consumption of the hydraulic system is less than the output flow of the middle pressure pump set 401, redundant flow is supplemented into the second accumulator 412, and meanwhile, the forming device 100 plays a role in buffering and shock absorption in the process of fast running or fast stopping; the second pressure gauge 416 is used for measuring and displaying the oil pressure value of the medium pressure oil supply path 402; the third flow sensor 316 can detect the flow of the oil returned from the medium-pressure oil return path 403, convert the flow into an electrical signal, and send the electrical signal to the electrical control system; the second overflow valve 317 can flow the oil on the medium pressure oil return path 403 to the oil tank 200 according to a set threshold value thereof, and perform a constant pressure overflow function; the third pressure sensor 319 can detect the oil pressure of the medium-pressure oil return path 403 and convert the oil pressure into an electric signal to be sent to an electric control system; the third pressure gauge 318 is used for measuring and displaying the oil pressure value of the medium-pressure oil return path 403.
The medium-pressure pump unit 401 comprises a coupling, a variable frequency motor, a vane pump and an oil suction filter, wherein the oil suction filter is arranged on one side of an oil inlet of the vane pump, the variable frequency motor is connected with the vane pump through the coupling, the vane pump is a high-pressure vane pump with a special rotating speed, and the variable frequency motor is adopted, so that the output flow can be changed according to the system requirement, and the energy is saved; meanwhile, the variable frequency motor is connected with an electric control system, the electric control system is connected with a control terminal through a wireless network, the flow value converted by a formula of the rotating speed in the encoder of the variable frequency motor and the detection value of the second flow sensor 407 are subjected to feedback detection, the electric control system can send the running condition of the variable frequency motor to the control terminal according to the detection result, if the detection result is abnormal, an alarm is given, the self-fault diagnosis function of the variable frequency motor is realized, and the reliability of the hydraulic system is further ensured.
The low pressure oil supply control unit is provided with the one-way throttle valve 404, the second relief valve 317, the third flow sensor 316 and the third accumulator 503 in sequence on the low pressure oil supply path 501 according to the oil supply direction, the medium pressure oil supply path 402 between the second relief valve 317 and the third flow sensor 316 is provided with the third pressure gauge 318 and the third pressure sensor 319, the low pressure oil supply path between the oil outlet of the medium pressure pump set 401 and the oil inlet of the one-way throttle valve 404 is provided with a low pressure oil return bypass 506, the low pressure oil return bypass 506 is communicated with the oil tank 200, the low pressure oil return bypass 506 is provided with the two-way relief valve 410, the two-way relief valve 410 is provided with the third electromagnetic ball valve 411, and the third electromagnetic ball valve 411 is used for realizing the valve core opening and closing of the two-way relief valve 410.
The high-pressure oil return line 303 of the high-pressure circuit device, the medium-pressure oil return line 403 of the medium-pressure circuit device, and the low-pressure oil supply line 501 of the low-pressure circuit device have a common oil path portion; the medium pressure oil return bypass 409 and the low pressure oil return bypass 506 are common bypasses; the medium-pressure pump set 401, the third accumulator 503, the third flow sensor 316, the second relief valve 317, the third pressure gauge 318, the third pressure sensor 319, the one-way throttle valve 404, etc. are common devices, so as to save the manufacturing cost of the system.
The low-pressure oil return control component is sequentially provided with a damping device 504 and a fourth flow sensor 505 on the low-pressure oil return path 502 according to the oil return direction. The fourth flow sensor 505 is connected to an electrical control system, and the electrical control system is connected to a control terminal through a wireless network.
Wherein the one-way throttle valve 404 (i.e. the one-way valve is connected in parallel with the throttle valve) is used for controlling the oil supply flow rate of the low-pressure oil supply path 501 and preventing the oil on the low-pressure oil supply path 501 from flowing reversely; the third energy accumulator 503 plays a role in assisting oil supply, when the oil consumption of the hydraulic system is greater than the output flow of the medium-pressure pump set 401, insufficient flow is provided by the third energy accumulator 503, and when the oil consumption of the hydraulic system is less than the output flow of the medium-pressure pump set 401, redundant flow is supplemented to the third energy accumulator 503, and meanwhile, the forming device 100 plays a role in buffering and shock absorption in the process of fast running or fast stopping; the third pressure sensor 319 can detect the oil pressure of the low-pressure oil supply path 501 and convert the oil pressure into an electric signal to be sent to an electric control system; the third pressure gauge 318 is configured to display an oil pressure value of the low pressure oil supply path 501; the fourth flow sensor 505 can detect the flow of the low-pressure oil return 502, convert the flow into an electrical signal, and send the electrical signal to the electrical control system.
Illustratively, the low pressure oil return path 502 is provided with at least one group of horizontal oil return path and vertical oil return path, the vertical oil return path is perpendicular to the horizontal oil return path, the shock absorbing device 504 is disposed at the junction of the horizontal oil return path and the vertical oil return path, and the direction of the buffering acting force of the shock absorbing device 504 is opposite to the oil return direction of the horizontal oil return path, and the shock absorbing device 504 is a spring type buffer or a plunger type accumulator. Therefore, the damping device 504 is added on the low-pressure oil return channel 502, so that the fluctuation of oil return pressure can be reduced during demolding and oil return, the demolding impact is small, and the protection effect on the oil cylinder of the oil distribution disc of the main machine rotator is achieved.
Illustratively, the hydraulic system for a capping machine further includes a heating device 600, the heating device 600 being disposed in the oil tank 200 and located at a side near the pumping end of the high-pressure pump set 301 and the pumping end of the medium-pressure pump set 401; the heating device 600 is used for preventing the equipment from being disabled due to the self-characteristics of hydraulic oil when the equipment is used in a low-temperature environment; the heating device 600 is connected with an electrical control system, the electrical control system is connected with a control terminal through a wireless network, and the electrical control system can control the operation of the heating device according to signals sent by the temperature sensor 201.
The hydraulic system for the capping machine further comprises a cooling circulation filter device 700, wherein the cooling circulation filter device 700 is arranged on the oil tank 200 and is positioned at one side far away from the oil pumping end of the high-pressure pump set 301 and the oil pumping end of the medium-pressure pump set 401, the cooling circulation filter device 700 is provided with a cooling filter circuit, an oil inlet and an oil outlet of the cooling filter circuit are communicated with the oil tank 200, a first oil filter 701, a cooling filter pump set 702, a water cooler 703, a second oil filter 704 and a third oil filter 705 are sequentially arranged on the cooling filter circuit according to the flowing direction of oil, the first oil filter 701 is primary filtering, the second oil filter 704 is intermediate filtering, and the third oil filter 705 is advanced filtering; the water cooler 703 is connected with a cooling water source through an electromagnetic valve 706, and a blockage alarm device is arranged on each of the second oil filter 704 and the third oil filter 705; the blockage alarm device is connected with an electrical control system, the electrical control system is connected with a control terminal through a wireless network, and the electrical control system can send the blockage condition of the second oil filter 704 and the third oil filter 705 to the control terminal for alarm according to the signal sent by the blockage alarm device; the electromagnetic valve 706 is connected with an electrical control system, the electrical control system is connected with a control terminal through a wireless network, and the electrical control system can control the switch of the electromagnetic valve and switch on and off a cooling water source. Therefore, the cooling circulation filtering device can effectively ensure the cleanliness of oil, and meanwhile, the design of the cooling circulation filtering device effectively reduces the temperature of hydraulic oil, ensures that the viscosity of the hydraulic oil meets the use requirement, realizes the recycling of the hydraulic oil, saves the cost and improves the effective utilization rate of resources.
Illustratively, a magnetic filter device 800 is disposed at the oil outlet of the low-pressure oil return path 502, and the magnetic filter device 800 is disposed in the oil tank 200, and is located at a side far away from the oil pumping end of the high-pressure pump unit 301 and the oil pumping end of the medium-pressure pump unit 401, and is close to the oil inlet of the cooling filter loop. The magnetic filter device 800 can remove solids (such as scrap iron) contained in oil, and can form four-stage filtration with the first oil filter 701, the second oil filter 704 and the third oil filter 705, thereby further improving the cleanliness of the oil.
Illustratively, the oil tank 200 is provided with a temperature sensor 201, a liquid level sensor 202, an air filter 203 and a liquid level meter 204, wherein the temperature sensor 201 and the liquid level sensor 202 are respectively connected with an electrical control system, and the electrical control system is connected with a control terminal through a wireless network. Therefore, the temperature sensor 201 can detect the oil temperature in the oil tank 200 and convert the oil temperature into an electric signal to be sent to the electric control system, and the electric control system can control the heating device 600 according to the signal sent by the temperature sensor 201, so as to monitor the oil temperature in the oil tank 200; the liquid level sensor 202 can detect the liquid level of the oil and convert the liquid level into an electric signal to be sent to the electric control system, and the electric control system can send the oil shortage condition of the oil tank 200 to the control terminal for alarming according to the signal sent by the liquid level sensor 202. The air cleaner 203 is used to remove particulate impurities from the air in the tank. The level gauge 204 is used to measure and display the level of oil.
The hydraulic system can automatically monitor the flow, pressure, temperature and oil cleanliness of each branch through devices such as a flow sensor, a pressure relay, a temperature sensor and a liquid level sensor, can locally or remotely perform linkage control through a control terminal (namely a central control room or mobile communication equipment), has a stronger fault self-diagnosis function, and can automatically prompt and alarm related system operators and equipment manufacturers through mobile communication equipment (namely a short message mode of mobile phone communication equipment or an APP client) once the hydraulic equipment is abnormal in flow, pressure, temperature, oil cleanliness and the like, thereby facilitating the hydraulic equipment manufacturers to detect and monitor the operation conditions of the hydraulic equipment, collecting the fault reasons of the system and realizing intelligent control.
The foregoing disclosure is only illustrative of the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The hydraulic system for the cover making machine is characterized by comprising a forming device, a high-pressure loop device, a medium-pressure loop device, a low-pressure loop device and an oil tank, wherein the forming device is provided with a hydraulic cylinder and a three-position four-way reversing valve, the hydraulic cylinder is provided with a first oil pressure cavity and a second oil pressure cavity, and the three-position four-way reversing valve is provided with a first oil port, a second oil port, a third oil port and a fourth oil port;
the high-pressure loop device comprises a high-pressure pump set, a high-pressure oil supply way and a high-pressure oil return way, an oil inlet of the high-pressure oil supply way is connected with the high-pressure pump set, the high-pressure pump set can lead oil in the oil tank to the high-pressure oil supply way, an oil outlet of the high-pressure oil supply way is communicated with the first oil pressure cavity through the first oil port and the fourth oil port in sequence, an oil inlet of the high-pressure oil return way is communicated with the second oil pressure cavity, an oil outlet of the high-pressure oil return way is communicated with the oil tank, a high-pressure oil supply control assembly is arranged on the high-pressure oil supply way, and a high-pressure oil return control assembly is arranged on the high-pressure oil return way;
the medium-pressure loop device comprises a medium-pressure pump group, a medium-pressure oil supply way and a medium-pressure oil return way, wherein an oil inlet of the medium-pressure oil supply way is connected with the medium-pressure pump group, the medium-pressure pump group can lead oil in the oil tank to the medium-pressure oil supply way, an oil outlet of the medium-pressure oil supply way is communicated with the first oil pressure cavity through the second oil port and the fourth oil port in sequence, an oil inlet of the medium-pressure oil return way is communicated with the second oil pressure cavity, an oil outlet of the medium-pressure oil return way is communicated with the oil tank, a medium-pressure oil supply control component is arranged on the medium-pressure oil supply way, and a medium-pressure oil return control component is arranged on the medium-pressure oil return way;
the low-pressure loop device comprises a medium-pressure pump set, a low-pressure oil supply way and a low-pressure oil return way, an oil inlet of the low-pressure oil supply way is connected with the medium-pressure pump set, the medium-pressure pump set can lead oil in the oil tank to the low-pressure oil supply way, an oil outlet of the low-pressure oil supply way is communicated with a second oil pressure cavity, an oil inlet of the low-pressure oil return way sequentially passes through a third oil port, a fourth oil port is communicated with the first oil pressure cavity, an oil outlet of the low-pressure oil return way is communicated with the oil tank, a low-pressure oil supply control assembly is arranged on the low-pressure oil supply way, and a low-pressure oil return control assembly is arranged on the low-pressure oil return way.
2. The hydraulic system for the capping machine according to claim 1, wherein the high-pressure oil supply control unit is sequentially provided with a check valve, a first speed regulating valve and a first flow sensor on the high-pressure oil supply path according to an oil supply direction, a first accumulator, a first pressure sensor, a first pressure relay, a first pressure gauge and a high-pressure oil return bypass are arranged on the high-pressure oil supply path between the check valve and the first speed regulating valve, the high-pressure oil return bypass is communicated with the oil tank, a first electromagnetic ball valve is arranged on the high-pressure oil return bypass, a first overflow valve is connected between a high-pressure oil supply path on the oil inlet side of the check valve and a high-pressure oil return bypass on the oil outlet side of the first electromagnetic ball valve, an oil inlet of the first overflow valve is connected with the high-pressure oil supply path, and an oil outlet of the first overflow valve is connected with the high-pressure oil return bypass; an electro-hydraulic proportional overflow valve is connected between the first overflow valve and a high-pressure oil return bypass at one side of an oil outlet of the first electromagnetic ball valve, an oil inlet of the electro-hydraulic proportional overflow valve is connected with the first overflow valve, an oil outlet of the electro-hydraulic proportional overflow valve is connected with the high-pressure oil return bypass, and a proportional amplifier is arranged at the electro-hydraulic proportional overflow valve;
the high-pressure oil return control assembly is sequentially provided with a third flow sensor and a second overflow valve on the high-pressure oil return path according to the oil return direction, and a third pressure gauge and a third pressure sensor are arranged on the high-pressure oil return path between the second overflow valve and the third flow sensor;
the first speed regulating valve, the first flow sensor, the first pressure relay, the first electromagnetic ball valve, the electro-hydraulic proportional overflow valve, the third flow sensor and the third pressure sensor are respectively connected with an electric control system, and the electric control system is connected with a control terminal through a wireless network.
3. The hydraulic system for the capping machine according to claim 2, wherein the medium pressure oil supply control component is sequentially provided with a one-way throttle valve, a two-way direction valve, a second speed regulating valve and a second flow sensor on the medium pressure oil supply path according to the oil supply direction, the two-way direction valve is provided with a second electromagnetic ball valve, the second electromagnetic ball valve is used for realizing valve core opening and closing of the two-way direction valve, a medium pressure oil return bypass is arranged on the medium pressure oil supply path between an oil outlet of the medium pressure pump set and an oil inlet of the one-way throttle valve, the medium pressure oil return bypass is communicated with the oil tank, the medium pressure oil return bypass is provided with a two-way overflow valve, the two-way overflow valve is provided with a third electromagnetic ball valve, the medium pressure oil supply path between the second speed regulating valve and the second flow sensor is provided with a second energy accumulator, a second pressure sensor, a second pressure relay, a third pressure relay and a second pressure gauge;
the medium-pressure oil return control assembly is sequentially provided with the third flow sensor and the second overflow valve on the medium-pressure oil return path according to the oil return direction, and the medium-pressure oil return path between the second overflow valve and the third flow sensor is provided with the third pressure gauge and the third pressure sensor;
the two-way direction valve, the second speed regulating valve, the second flow sensor, the second electromagnetic ball valve, the third electromagnetic ball valve, the second pressure sensor, the second pressure relay and the third pressure relay are respectively connected with an electric control system.
4. The hydraulic system for a capping machine according to claim 3, wherein the low-pressure oil supply control unit is provided with the one-way throttle valve, the second overflow valve, the third flow sensor and a third accumulator in sequence on the low-pressure oil supply path according to an oil supply direction, the low-pressure oil supply path between the second overflow valve and the third flow sensor is provided with the third pressure gauge and the third pressure sensor, the low-pressure oil supply path between an oil outlet of the medium-pressure pump set and an oil inlet of the one-way throttle valve is provided with a low-pressure oil return bypass, the low-pressure oil return bypass is communicated with the oil tank, the low-pressure oil return bypass is provided with the two-way overflow valve, and the two-way overflow valve is provided with the third electromagnetic ball valve for realizing valve core opening and closing of the two-way overflow valve;
the low-pressure oil return control assembly is sequentially provided with a damping device and a fourth flow sensor on the low-pressure oil return path according to the oil return direction; the fourth flow sensor is connected with an electrical control system.
5. The hydraulic system for a cap making machine according to claim 4, wherein the low-pressure oil return path is provided with at least one set of horizontal oil return path and vertical oil return path, the vertical oil return path is perpendicular to the horizontal oil return path, the shock absorbing device is disposed at the junction of the horizontal oil return path and the vertical oil return path, and the direction of the buffering acting force of the shock absorbing device is opposite to the oil return direction of the horizontal oil return path.
6. The hydraulic system for a capping machine of claim 5 wherein the shock absorbing means is a spring-type damper or a plunger-type accumulator.
7. The hydraulic system for a capping machine of claim 1 further comprising a heating device disposed within the oil tank on a side proximate the oil pumping end of the high pressure pump stack and the oil pumping end of the medium pressure pump stack; the heating device is connected with an electrical control system, and the electrical control system is connected with a control terminal through a wireless network.
8. The hydraulic system for a capping machine of claim 1, further comprising a cooling circulation filter device, wherein the cooling circulation filter device is arranged on the oil tank and is positioned at one side far away from the oil pumping end of the high-pressure pump unit and the oil pumping end of the medium-pressure pump unit, the cooling circulation filter device is provided with a cooling filter circuit, an oil inlet and an oil outlet of the cooling filter circuit are communicated with the oil tank, a first oil filter, a cooling filter unit, a water cooler, a second oil filter and a third oil filter are sequentially arranged on the cooling filter circuit according to the flowing direction of oil, the first oil filter is primary filtering, the second oil filter is intermediate filtering, the third oil filter is advanced filtering, the second oil filter and the third oil filter are both provided with a blockage alarm device, and the water cooler is connected with a cooling water source through an electromagnetic valve; the blocking alarm device and the electromagnetic valve are respectively connected with an electrical control system, and the electrical control system is connected with a control terminal through a wireless network.
9. The hydraulic system for a capping machine of claim 8 wherein a magnetic filter device is disposed at an oil outlet of the low pressure return, the magnetic filter device being disposed within the oil tank on a side of the oil pump distal to the oil pump end of the high pressure pump stack and the oil pump end of the medium pressure pump stack and proximate to an oil inlet of the cooling filter circuit.
10. The hydraulic system for a capping machine of claim 1 wherein the oil tank is provided with a temperature sensor, a liquid level sensor, an air cleaner and a liquid level gauge; the temperature sensor and the liquid level sensor are respectively connected with an electrical control system, and the electrical control system is connected with a control terminal through a wireless network.
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| CN111237269B (en) * | 2020-01-20 | 2022-03-01 | 中国海洋石油集团有限公司 | Hydraulic heat dissipation system, marine riser suspension device hydraulic system and heat dissipation method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113879A (en) * | 1997-06-23 | 1999-01-22 | Kanzaki Kokyukoki Mfg Co Ltd | Hydrostatic power transmission |
| JP2008014440A (en) * | 2006-07-07 | 2008-01-24 | Shin Caterpillar Mitsubishi Ltd | Hydraulic control system of working machine |
| CN201592286U (en) * | 2010-01-14 | 2010-09-29 | 东北大学 | Hydraulic drive circuit of inclined throat shear |
| CN201970903U (en) * | 2010-12-30 | 2011-09-14 | 湘电重型装备股份有限公司 | Lifting hydraulic integration system of a large-ton electric-wheel mine dump truck |
| CN102220864A (en) * | 2011-05-17 | 2011-10-19 | 柳州固瑞机械有限公司 | Hydraulic control system for rotation system of horizontal directional drilling machine |
| CN104647670A (en) * | 2015-02-02 | 2015-05-27 | 广州晶品包装机械有限公司 | Low-pressure assembling and high-pressure molding device for lid maker |
| CN209129948U (en) * | 2018-10-26 | 2019-07-19 | 广州宝力特液压密封有限公司 | A kind of hydraulic system for lid maker |
-
2018
- 2018-10-26 CN CN201811257283.2A patent/CN109210022B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1113879A (en) * | 1997-06-23 | 1999-01-22 | Kanzaki Kokyukoki Mfg Co Ltd | Hydrostatic power transmission |
| JP2008014440A (en) * | 2006-07-07 | 2008-01-24 | Shin Caterpillar Mitsubishi Ltd | Hydraulic control system of working machine |
| CN201592286U (en) * | 2010-01-14 | 2010-09-29 | 东北大学 | Hydraulic drive circuit of inclined throat shear |
| CN201970903U (en) * | 2010-12-30 | 2011-09-14 | 湘电重型装备股份有限公司 | Lifting hydraulic integration system of a large-ton electric-wheel mine dump truck |
| CN102220864A (en) * | 2011-05-17 | 2011-10-19 | 柳州固瑞机械有限公司 | Hydraulic control system for rotation system of horizontal directional drilling machine |
| CN104647670A (en) * | 2015-02-02 | 2015-05-27 | 广州晶品包装机械有限公司 | Low-pressure assembling and high-pressure molding device for lid maker |
| CN209129948U (en) * | 2018-10-26 | 2019-07-19 | 广州宝力特液压密封有限公司 | A kind of hydraulic system for lid maker |
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| CN109210022A (en) | 2019-01-15 |
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