WO2022228257A1 - 集成式液压系统及轮胎硫化机 - Google Patents

集成式液压系统及轮胎硫化机 Download PDF

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Publication number
WO2022228257A1
WO2022228257A1 PCT/CN2022/088083 CN2022088083W WO2022228257A1 WO 2022228257 A1 WO2022228257 A1 WO 2022228257A1 CN 2022088083 W CN2022088083 W CN 2022088083W WO 2022228257 A1 WO2022228257 A1 WO 2022228257A1
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Prior art keywords
valve
oil
piston rod
port
hydraulic
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Application number
PCT/CN2022/088083
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English (en)
French (fr)
Inventor
索欢欢
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萨驰智能装备股份有限公司
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Publication of WO2022228257A1 publication Critical patent/WO2022228257A1/zh

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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
    • F15B21/08—Servomotor systems incorporating electrically operated control means
    • F15B21/087—Control strategy, e.g. with block diagram
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/20—Opening, closing or clamping
    • B29C33/22—Opening, closing or clamping by rectilinear movement
    • B29C33/24—Opening, closing or clamping by rectilinear movement using hydraulic or pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • 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
    • F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
    • 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
    • F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/149—Fluid interconnections, e.g. fluid connectors, passages
    • 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
    • F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Definitions

  • the present application relates to the field of tire building, for example, to an integrated hydraulic system and a tire vulcanizer.
  • Hydraulic vulcanizer is the equipment used in the vulcanization process in the tire production process, and it is one of the key equipments that determine the quality of tires.
  • the actions of opening and closing the mold, adding and closing the mold force, lifting the central mechanism, expanding the movable mold, and lifting the tire loading mechanism are all realized by hydraulic transmission, with fast response speed, reliable action, and high efficiency. Stepless speed regulation, good performance, greatly reducing user operating costs and improving equipment utilization.
  • the hydraulic vulcanizer of the related art has the following disadvantages: the mold opening and closing oil cylinder and the pressurizing oil cylinder are two independent oil cylinders, resulting in high use cost, large space occupation, complicated installation, many pipeline connection points, and hydraulic oil leakage points. It also increases; the mold opening and closing oil cylinder realizes fast mold closing all rely on the output flow of the pump, the displacement of the pump is large, and the power of the matched motor is also large, which increases energy consumption and cost.
  • the present application provides an integrated hydraulic system with compact structure, few pipeline connection points, low leakage probability of hydraulic oil, reduced cost and energy consumption, and reduced noise.
  • the present application also provides a tire vulcanizer, which is equipped with the above-mentioned integrated hydraulic system, which can complete the steps of pressurizing and maintaining pressure after the tire vulcanizer is quickly closed, and can complete the pressure relief step after the tire vulcanizer is quickly opened after the vulcanization. , so as to effectively ensure the quality of tire vulcanization.
  • An integrated hydraulic system includes a hydraulic pump source, a control valve block and an actuator, the actuator includes an integrated oil cylinder and a liquid filling unit, the integrated oil cylinder includes a cylinder block, a static piston rod and a movable piston rod, the static The piston rod is fixedly arranged in the cylinder body, the movable piston rod is slidably arranged in the cylinder body, and is slidably matched with the static piston rod.
  • a rod cavity and a rod cavity, a fast-forward cavity is set between the movable piston rod and the static piston rod, the liquid filling unit is set to supply hydraulic oil to the rodless cavity, and the hydraulic pump source passes through
  • the control valve block supplies hydraulic oil to the rod cavity, the rodless cavity and the fast-forward cavity respectively.
  • a tire vulcanizing machine comprising a frame, an upper mold, a lower mold, and the above-mentioned integrated hydraulic system
  • the upper die is slidably arranged on the frame, and the integrated hydraulic system is arranged to drive the upper die to slide, so that the upper die and the lower die are closed and opened.
  • FIG. 1 is a schematic diagram of the principle of an integrated hydraulic system provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an integrated oil cylinder (when the movable piston rod is retracted) in an integrated hydraulic system provided by an embodiment of the present application;
  • FIG. 3 is a schematic structural diagram of an integrated oil cylinder (when the movable piston rod extends) in an integrated hydraulic system provided by an embodiment of the present application;
  • FIG. 4 is a schematic structural diagram of a tire vulcanizer including an integrated hydraulic system provided by an embodiment of the present application;
  • FIG. 5 is a schematic structural diagram of a tire vulcanizer including an integrated hydraulic system (when the movable piston rod is in a retracted position) provided by an embodiment of the present application;
  • FIG. 6 is a schematic structural diagram of a tire vulcanizer including an integrated hydraulic system (when the movable piston rod is in an extended position) provided by an embodiment of the present application.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components.
  • this embodiment provides an integrated hydraulic system, which includes a hydraulic pump source, a control valve block, and an actuator.
  • the actuator includes an integrated oil cylinder 31 and a liquid filling unit 32
  • the integrated oil cylinder 31 includes a cylinder block 311 , a static piston rod 312 and a movable piston rod 313 .
  • the static piston rod 312 is fixedly arranged in the cylinder body 311
  • the movable piston rod 313 is slidably arranged in the cylinder body 311 and is slidably matched with the static piston rod 312 .
  • a rodless cavity 314 and a rod cavity 315 are provided between the movable piston rod 313 and the cylinder 311 , and a fast-forward cavity 316 is provided between the movable piston rod 313 and the stationary piston rod 312 .
  • the liquid charging unit 32 is configured to supply hydraulic oil to the rodless cavity 314 , and the hydraulic pump source supplies hydraulic oil to the rod cavity 315 , the rodless cavity 314 and the fast forward cavity 316 respectively through the control valve block.
  • the hydraulic pump source supplies hydraulic oil to the fast-forward cavity 316 between the movable piston rod 313 and the static piston rod 312 of the integrated oil cylinder 31 through the control valve block, and the hydraulic oil pushes the movable piston rod 313 to move rapidly relative to the static piston rod 312 .
  • hydraulic oil is rapidly supplied to the rodless cavity 314 between the movable piston rod 313 and the cylinder 311 through the liquid filling unit 32, so as to accelerate the movement of the movable piston rod 313 and realize the fast mold clamping function.
  • the hydraulic pump source supplies high-pressure hydraulic oil to the rodless cavity 314 through the control valve block to realize the pressurization function.
  • the hydraulic pump source supplies hydraulic oil to the rod cavity 315 through the control valve block to realize the pressure relief function.
  • the hydraulic pump source includes an oil tank 101 and a low-pressure oil pump 102
  • the control valve block includes a third solenoid ball valve 201, a second reversing valve 202, a first one-way throttle valve 203, a second balance valve 204 and a first balance valve Valve 205
  • the hydraulic oil in the oil tank 101 flows into the fast forward through the low pressure oil pump 102
  • the third solenoid ball valve 201, the second reversing valve 202, the first one-way throttle valve 203, the second balance valve 204 and the first balance valve 205 in turn. cavity 316 to push the piston rod 313 to the extended position.
  • the hydraulic pump source further includes a first motor 112 and a first coupling 113 , and the first motor 112 is connected to the low-pressure oil pump 102 through the first coupling 113 .
  • the control valve block further includes a second electromagnetic relief valve 212 and a second one-way valve 217 that are sequentially arranged downstream of the low-pressure oil pump 102 .
  • the electromagnet 111 of the second electromagnetic relief valve 212 sends an electrical signal
  • the AL port of the low-pressure oil pump 102 outputs low-pressure oil
  • the low-pressure oil flows from the BL port of the second check valve 217 Input and output from the CL port of the second check valve 217 .
  • the a-side electromagnet 111 of the third solenoid ball valve 201 and the b-side electromagnet 111 of the second reversing valve 202 simultaneously supply electrical signals, and the low-pressure oil enters the third solenoid from the CL port of the second check valve 217
  • the DL port of the ball valve 201 then enters the FL port of the second reversing valve 202 from the HL port of the third solenoid ball valve 201 , and then enters the QL port of the first one-way throttle valve 203 from the FB port of the second reversing valve 202 , and then output from the HL port of the first one-way throttle valve 203 , and the second balance valve 204 is opened through the KZ port of the second balance valve 204 .
  • the low-pressure oil is input from the first balance valve 205, and then output from the KL port of the first balance valve 205, and enters the fast-forward chamber 316 through the YK port of the static piston rod 312, and the moving piston rod 313 is rapidly lowered by the low-pressure oil. , to achieve fast mold clamping.
  • the liquid charging unit 32 includes a liquid charging valve 321 and a high-level oil tank 322.
  • the negative pressure of the rodless cavity 314 opens the liquid-filling valve 321, and the hydraulic oil in the high-level oil tank 322 passes through the liquid-filling valve 321. Flow into the rodless cavity 314 to push the movable piston rod 313 .
  • control valve block further includes a second one-way throttle valve 206.
  • the hydraulic pump source further includes an oil return filter 107 , and the oil return filter 107 is arranged between the second reversing valve 202 and the oil tank 101 .
  • the oil in the rod cavity 315 is output through the YH port, input through the JL port of the second balance valve 204, output from the IL port of the second balance valve 204, and then from the second one-way throttle valve 206.
  • the first balance valve 205 and the second balance valve 204 can keep the speed of the movable piston rod 313 smooth and without shock during operation.
  • control valve block further includes a second electromagnetic ball valve 207 , and the hydraulic oil in the oil tank 101 flows into the rodless cavity 314 via the low-pressure oil pump 102 and the second electromagnetic ball valve 207 in sequence.
  • control valve block further includes a first throttle valve 218 and a pressure sensor 220.
  • the first throttle valve 218 is arranged in parallel with the third electromagnetic ball valve 201, and the pressure sensor 220 is arranged to monitor the oil in the rodless cavity 314 in real time. hydraulic pressure.
  • the mold clamping turns from fast to slow, and at this time, the filling valve 321 is closed under the action of the return spring.
  • the electromagnet 111 at the end a of the third solenoid ball valve 201 is de-energized and loses the electrical signal, and the low-pressure oil passes through the first throttle valve 218 to limit the flow rate.
  • the output from the CL port of the second one-way valve 217 is input through the EP port of the second electromagnetic ball valve 207, and then output from the EO port of the second electromagnetic ball valve 207, and enters the rodless cavity 314 through the YG port, and the moving piston rod 313 arrives at a slow speed.
  • the mold clamping is completed.
  • the oil continues to enter the rodless chamber 314 through the YG port, and the movable piston rod 313 begins to pre-pressurize.
  • the low-pressure oil pump 102 is turned off, and the second direction is reversed.
  • the valve 202 and the second solenoid ball valve 207 lose electrical signals, and the valve core returns to its original position.
  • the hydraulic pump source further includes a high-pressure oil pump 103
  • the control valve block further includes a first reversing valve 208 and a first electromagnetic ball valve 209
  • the hydraulic oil in the oil tank 101 passes through the high-pressure oil pump 103, the first reversing valve 208 and the first reversing valve 209 in sequence.
  • a solenoid ball valve 209 flows into the rodless cavity 314 to pressurize the movable piston rod 313 .
  • the hydraulic pump source further includes a second motor 114 and a second coupling 115 , and the second motor 114 is connected to the high-pressure oil pump 103 through the second coupling 115 .
  • the control valve block also includes a first electromagnetic relief valve 211, a first one-way valve 216 and a safety valve 213.
  • the first electromagnetic relief valve 211 is arranged between the high-pressure oil pump 103 and the first reversing valve 208.
  • the first one-way The valve 216 is arranged downstream of the first reversing valve 208, the first end of the safety valve 213 is arranged between the second electromagnetic ball valve 207 and the rodless cavity 314, the second end of the safety valve 213 is connected to the fuel tank 101, and the safety valve 213 Provide security protection for the system.
  • the second motor 114 is activated, the electromagnet 111 of the first electromagnetic relief valve 211 supplies an electrical signal, the AH port of the high-pressure oil pump 103 outputs high-pressure oil, and the a-side of the first reversing valve 208 inputs an electrical signal, and the high-pressure oil
  • the oil is input from the PR port of the first reversing valve 208, and then output from the BR port of the first reversing valve 208.
  • the high-pressure oil is input from the BH port of the first one-way valve 216, and the CH port output.
  • an electrical signal is input to the a terminal of the first electromagnetic ball valve 209, the high pressure oil is input from the DH port of the first electromagnetic ball valve 209, output from the EH port of the first electromagnetic ball valve 209, and enters the rodless cavity 314 through the YG port for adding pressure.
  • the pressure sensor 220 detects that the pressure of the rodless cavity 314 reaches the set value, the a-end of the first electromagnetic ball valve 209 loses the electrical signal, and the valve core is closed to maintain the pressure on the movable piston rod 313 to maintain the pressure.
  • the second motor 114 stops moving, and the a-end of the first reversing valve 208 loses the electrical signal and returns to its original position.
  • control valve block further includes a fourth electromagnetic ball valve 210 , and the hydraulic oil in the rodless cavity 314 flows into the oil tank 101 through the fourth electromagnetic ball valve 210 to relieve the pressure of the movable piston rod 313 .
  • An electrical signal is input to the a end of the fourth electromagnetic ball valve 210, and the high-pressure oil in the rodless cavity 314 enters the EJ port of the fourth electromagnetic ball valve 210 through the YG port, and then the The output of the EI port of the fourth electromagnetic ball valve 210 is returned to the fuel tank 101 .
  • the pressure sensor 220 detects that the pressure in the rodless cavity 314 is zero, the fourth electromagnetic ball valve 210 loses the electrical signal and completes the pressure relief.
  • the hydraulic oil in the oil tank 101 flows into the rod cavity 315 via the low-pressure oil pump 102, the third electromagnetic ball valve 201, the second reversing valve 202, the second one-way throttle valve 206 and the second balance valve 204 in sequence to push Move the piston rod 313 to the retracted position.
  • the first motor 112 is started, the electromagnet 111 of the second electromagnetic relief valve 212 sends an electrical signal, the AL port of the low-pressure oil pump 102 outputs low-pressure oil, and the low-pressure oil is input from the BL port of the second check valve 217 , and output from the CL port of the second check valve 217 .
  • the a-side electromagnet 111 of the third solenoid ball valve 201 and the a-side electromagnet 111 of the second reversing valve 202 simultaneously supply electrical signals, and the low-pressure oil enters the third solenoid from the CL port of the second check valve 217
  • the DL port of the ball valve 201 then enters the FL port of the second reversing valve 202 from the HL port of the third solenoid ball valve 201 , and then enters the GL port of the second one-way throttle valve 206 from the FA port of the second reversing valve 202
  • the low-pressure oil passes through the KX port of the filling valve 321 to open the filling valve 321, and the low-pressure oil enters the IL port of the second balance valve 204 from the HL port of the second one-way throttle valve 206.
  • the first balance valve 205 is opened through the FY port of the first balance valve 205 .
  • the low-pressure oil is output from the JL port of the second balance valve 204 and enters the rod cavity 315 from the YH port, and the movable piston rod 313 is retracted under the push of the low-pressure oil to achieve rapid mold opening.
  • the hydraulic oil in the oil tank 101 flows into the charging valve 321 via the low-pressure oil pump 102, the third electromagnetic ball valve 201, the second reversing valve 202 and the second one-way throttle valve 206 in sequence, so as to open the charging valve 321, without
  • the hydraulic oil in the rod cavity 314 flows into the high-level oil tank 322 via the filling valve 321 .
  • the oil in the rodless cavity 314 is output through the YL port, input from the ZL port of the liquid charging valve 321, and then output from the XL port of the liquid charging valve 321 into the high-level oil tank 322. At this time, one cycle ends.
  • control valve block further includes a first pressure gauge 214, a second pressure gauge 215 and a second throttle valve 219.
  • the first pressure gauge 214 is set to detect the downstream line pressure of the high-pressure oil pump 103
  • the gauge 215 is set to detect the downstream line pressure of the low pressure oil pump 102
  • the second throttle valve 219 is set upstream of the fourth solenoid ball valve 210 .
  • the hydraulic pump source further includes a liquid level gauge 104 , and the liquid level gauge 104 is configured to detect the oil level in the oil tank 101 .
  • An air filter 110 is installed on the oil tank 101, and the air filter 110 is set to filter the impurities in the air when the oil in the oil tank 101 is reduced and the air enters the oil tank 101, so as to avoid aggravating the wear of the integrated oil cylinder 31 and ensure the integration of The service life of the oil cylinder 31.
  • the oil tank 101 is also equipped with a liquid level transmitter 109, which will cause the loss of hydraulic oil during the operation of the equipment, resulting in the reduction of oil. Avoid damage to the low-pressure oil pump 102 and the high-pressure oil pump 103 due to air intake.
  • a temperature controller 108 is installed in the oil tank 101, which can detect the shutdown alarm in time when the oil temperature rises, thereby protecting the hydraulic components from accelerated aging and damage due to high temperature.
  • the first oil suction filter 105 , the second oil suction filter 106 and the oil return filter 107 on the oil tank 101 can protect the low pressure oil pump 102 and the high pressure oil pump 103 and prevent them from inhaling impurities in the oil and causing damage to components.
  • the oil tank 101 is also equipped with a magnet 111. The magnet 111 can absorb the iron filings and iron powder brought back from the oil return of the system. Avoid being sucked into the oil pump.
  • the working process of the integrated hydraulic system provided by this embodiment includes seven steps: fast mold closing, mold closing from fast to slow, pre-pressurization, pressurization, pressure maintenance, pressure relief, and mold opening.
  • the electromagnet 111 of the second electromagnetic relief valve 212 sends an electrical signal
  • the AL port of the low-pressure oil pump 102 outputs low-pressure oil
  • the low-pressure oil flows from the second Input to the BL port of the valve 217 and output from the CL port of the second check valve 217 .
  • the a-side electromagnet 111 of the third solenoid ball valve 201 and the b-side electromagnet 111 of the second reversing valve 202 simultaneously supply electrical signals, and the low-pressure oil enters the third solenoid from the CL port of the second check valve 217
  • the DL port of the ball valve 201 then enters the FL port of the second reversing valve 202 from the HL port of the third solenoid ball valve 201 , and then enters the QL port of the first one-way throttle valve 203 from the FB port of the second reversing valve 202 , and then output from the HL port of the first one-way throttle valve 203 , and the second balance valve 204 is opened through the KZ port of the second balance valve 204 .
  • the low-pressure oil is input from the first balance valve 205, and then output from the KL port of the first balance valve 205, and enters the fast-forward chamber 316 through the YK port of the static piston rod 312, and the moving piston rod 313 is rapidly lowered by the low-pressure oil. , to achieve fast mold clamping, as shown in Figure 2 and Figure 3.
  • the oil in the rod cavity 315 is output through the YH port, input through the JL port of the second balance valve 204, output from the IL port of the second balance valve 204, and then from the second one-way throttle valve 206.
  • the first balance valve 205 and the second balance valve 204 can keep the speed of the movable piston rod 313 smooth and without shock during operation.
  • the mold clamping turns from fast to slow, and at this time, the filling valve 321 is closed under the action of the return spring.
  • the electromagnet 111 at the end a of the third solenoid ball valve 201 is de-energized and loses the electrical signal, and the low-pressure oil passes through the first throttle valve 218 to limit the flow rate.
  • the output from the CL port of the second one-way valve 217 is input through the EP port of the second electromagnetic ball valve 207, and then output from the EO port of the second electromagnetic ball valve 207, and enters the rodless cavity 314 through the YG port, and the moving piston rod 313 arrives at a slow speed.
  • the mold clamping is completed, as shown in Figure 6.
  • the oil continues to enter the rodless chamber 314 through the YG port, and the movable piston rod 313 begins to pre-pressurize.
  • the low-pressure oil pump 102 is turned off, and the second direction is reversed.
  • the valve 202 and the second solenoid ball valve 207 lose electrical signals, and the valve core returns to its original position.
  • the second motor 114 is activated, the electromagnet 111 of the first electromagnetic relief valve 211 supplies an electrical signal, the AH port of the high-pressure oil pump 103 outputs high-pressure oil, and the a-side of the first reversing valve 208 inputs an electrical signal, and the high-pressure oil
  • the oil is input from the PR port of the first reversing valve 208, and then output from the BR port of the first reversing valve 208.
  • the high-pressure oil is input from the BH port of the first one-way valve 216, and the CH port output.
  • an electrical signal is input to the a-end of the first electromagnetic ball valve 209, and the high-pressure oil is input from the DH port of the first electromagnetic ball valve 209, output from the EH port of the first electromagnetic ball valve 209, and enters the rodless cavity 314 through the YG port for adding. pressure.
  • the pressure sensor 220 detects that the pressure of the rodless cavity 314 reaches the set value, the a-end of the first electromagnetic ball valve 209 loses the electrical signal, and the valve core is closed to maintain the pressure on the movable piston rod 313 to maintain the pressure.
  • the second motor 114 stops moving, and the a-end of the first reversing valve 208 loses the electrical signal and returns to its original position.
  • the electromagnet 111 of the second electromagnetic relief valve 212 sends an electrical signal
  • the AL port of the low-pressure oil pump 102 outputs low-pressure oil
  • the low-pressure oil is input from the BL port of the second check valve 217 , and output from the CL port of the second check valve 217 .
  • the a-side electromagnet 111 of the third solenoid ball valve 201 and the a-side electromagnet 111 of the second reversing valve 202 simultaneously supply electrical signals, and the low-pressure oil enters the third solenoid from the CL port of the second check valve 217
  • the DL port of the ball valve 201 then enters the FL port of the second reversing valve 202 from the HL port of the third solenoid ball valve 201 , and then enters the GL port of the second one-way throttle valve 206 from the FA port of the second reversing valve 202
  • the low-pressure oil passes through the KX port of the filling valve 321 to open the filling valve 321, and the low-pressure oil enters the IL port of the second balance valve 204 from the HL port of the second one-way throttle valve 206.
  • the first balance valve 205 is opened through the FY port of the first balance valve 205 .
  • the low-pressure oil is output from the JL port of the second balance valve 204 and enters the rod cavity 315 from the YH port, and the movable piston rod 313 retracts to the initial position under the push of the low-pressure oil, as shown in FIG. 5 , to achieve rapid mold opening.
  • the oil in the rodless cavity 314 is output through the YL port, input from the ZL port of the liquid charging valve 321, and then output from the XL port of the liquid charging valve 321 into the high-level oil tank 322. At this time, one cycle ends. When there is too much oil in the high-level fuel tank 322, the oil will flow back into the fuel tank 101 from the YL port of the high-level fuel tank 322, so as to avoid the overflow of hydraulic oil from the high-level fuel tank 322 and affect the tire quality.
  • the integrated hydraulic system provided by this embodiment has a compact structure, reduces the occupied space, is easy to install, improves the work efficiency, has few pipeline connection points, and has a low leakage probability of hydraulic oil, and does not need to rely on the additional output flow of the oil pump to achieve fast mold clamping. Reduced cost and energy consumption, reduced noise.
  • this embodiment also provides a tire vulcanizing machine, including the above-mentioned integrated hydraulic system, which can complete the steps of pressing and maintaining pressure after the tire vulcanizing machine is quickly clamped, and the tire after vulcanization is completed.
  • the pressure relief step is completed before the vulcanizing machine opens the mold quickly, so as to effectively ensure the vulcanization quality of the tire.
  • the tire vulcanizing machine also includes a frame 600, an upper mold 400 and a lower mold 500.
  • the upper mold 400 is slidably arranged on the frame 600.
  • the upper mold 400 is driven by the integrated hydraulic system to perform mold clamping and mold opening with the lower mold 500.

Abstract

一种集成式液压系统及轮胎硫化机，所述集成式液压系统包括液压泵源、控制阀块和执行机构，执行机构包括集成油缸(31)和充液单元(32)，集成油缸(31)包括缸体(311)、静活塞杆(312)和动活塞杆(313)，静活塞杆(312)固定设置于缸体(311)内，动活塞杆(313)滑动设置于缸体(311)内，并与静活塞杆(312)滑动配合，动活塞杆(313)与缸体(311)之间设置有无杆腔(314)和有杆腔(315)，动活塞杆(313)与静活塞杆(312)之间设置有快进腔(316)，充液单元(32)设置为向无杆腔(314)中供给液压油，液压泵源通过控制阀块分别向有杆腔(315)、无杆腔(314)和快进腔(316)中供给液压油。

Description

集成式液压系统及轮胎硫化机
本公开要求在2021年4月30日提交中国专利局、申请号为202110480559.9的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及轮胎成型领域，例如涉及一种集成式液压系统及轮胎硫化机。
背景技术
液压硫化机是轮胎生产过程中硫化工序所用设备，是决定轮胎质量的关键设备之一。相关技术的液压硫化机中，开合模、加合模力、中心机构升降、活络模伸缩、装胎机构升降等动作均采用液压传动方式实现，反应速度快，动作可靠，效率高，可实现无级调速，性能良好，大大减少了用户运行成本，提高了设备利用率。
相关技术的液压硫化机存在以下缺点：开合模油缸和加压油缸为相互独立的两件油缸，导致使用成本高，占用空间大，安装繁琐，管路连接点较多，液压油的泄漏点也随之增加；开合模油缸实现快速合模全部依靠泵输出流量，泵的排量较大，配合的电机功率也大，增加能耗及成本。
发明内容
本申请提供一种集成式液压系统，结构紧凑，管路连接点少，液压油的泄漏几率低，降低成本和能耗，减少噪音。
本申请还提供一种轮胎硫化机，配备有上述集成式液压系统，能够在轮胎硫化机快速合模后完成加压、保压步骤，以及硫化完毕后轮胎硫化机快速开模前完成泄压步骤，从而有效地保证轮胎硫化质量。
本申请采用以下技术方案：
一种集成式液压系统，包括液压泵源、控制阀块和执行机构，所述执行机构包括集成油缸和充液单元，所述集成油缸包括缸体、静活塞杆和动活塞杆，所述静活塞杆固定设置于所述缸体内，所述动活塞杆滑动设置于所述缸体内，并与所述静活塞杆滑动配合，所述动活塞杆与所述缸体之间设置有无杆腔和有杆腔，所述动活塞杆与所述静活塞杆之间设置有快进腔，所述充液单元设置为 向所述无杆腔中供给液压油，所述液压泵源通过所述控制阀块分别向所述有杆腔、所述无杆腔和所述快进腔中供给液压油。
一种轮胎硫化机，包括机架、上模具、下模具，以及如上所述的集成式液压系统；
其中，所述上模具滑动设置于所述机架上，所述集成式液压系统设置为驱动所述上模具滑动，以使所述上模具与所述下模具进行合模和开模。
附图说明
下面将对本申请实施例描述中所需要使用的附图作简单的介绍，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据本申请实施例的内容和这些附图获得其他的附图。
图1是本申请实施例提供的集成式液压系统的原理示意图；
图2是本申请实施例提供的集成式液压系统中集成油缸(动活塞杆收缩时)的结构示意图；
图3是本申请实施例提供的集成式液压系统中集成油缸(动活塞杆伸出时)的结构示意图；
图4是本申请实施例提供的包括集成式液压系统的轮胎硫化机的结构示意图；
图5是本申请实施例提供的包括集成式液压系统的轮胎硫化机(动活塞杆位于收缩位置时)的结构示意图；
图6是本申请实施例提供的包括集成式液压系统的轮胎硫化机(动活塞杆位于伸出位置时)的结构示意图。
图中：
101-油箱；102-低压油泵；103-高压油泵；104-液位计；105-第一吸油过滤器；106-第二吸油过滤器；107-回油过滤器；108-温度控制器；109-液位发讯器；110-空气滤清器；111-磁铁；112-第一电机；113-第一联轴器；114-第二电机；115-第二联轴器；
201-第三电磁球阀；202-第二换向阀；203-第一单向节流阀；204-第二平衡阀；205-第一平衡阀；206-第二单向节流阀；207-第二电磁球阀；208-第一换向阀；209-第一电磁球阀；210-第四电磁球阀；211-第一电磁溢流阀；212-第二电 磁溢流阀；213-安全阀；214-第一压力表；215-第二压力表；216-第一单向阀；217-第二单向阀；218-第一节流阀；219-第二节流阀；220-压力传感器；
31-集成油缸；32-充液单元；
311-缸体；312-静活塞杆；313-动活塞杆；314-无杆腔；315-有杆腔；316-快进腔；
321-充液阀；322-高位油箱；
400-上模具；500-下模具；600-机架。
具体实施方式
下面将结合附图对本申请实施例的技术方案作描述，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作。此外，术语“第一”、“第二”、仅用于描述目的，而不能理解为指示或暗示相对重要性。其中，术语“第一位置”和“第二位置”为两个不同的位置。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据情况理解上述术语在本申请中的含义。
如图1至图3所示，本实施例提供一种集成式液压系统，该集成式液压系统包括液压泵源、控制阀块和执行机构。执行机构包括集成油缸31和充液单元32，集成油缸31包括缸体311、静活塞杆312和动活塞杆313。静活塞杆312固定设置于缸体311内，动活塞杆313滑动设置于缸体311内，并与静活塞杆312滑动配合。动活塞杆313与缸体311之间设置有无杆腔314和有杆腔315，动活塞杆313与静活塞杆312之间设置有快进腔316。充液单元32设置为向无杆腔314中供给液压油， 液压泵源通过控制阀块分别向有杆腔315、无杆腔314和快进腔316中供给液压油。
液压泵源通过控制阀块向集成油缸31的动活塞杆313与静活塞杆312之间的快进腔316中供给液压油，液压油推动动活塞杆313相对静活塞杆312快速移动。同时，通过充液单元32向动活塞杆313与缸体311之间的无杆腔314中快速供给液压油，加快动活塞杆313的移动，实现快速合模功能。液压泵源通过控制阀块向无杆腔314中供给高压液压油，实现加压功能。液压泵源通过控制阀块向有杆腔315中供给液压油，实现泄压功能。
可选地，液压泵源包括油箱101和低压油泵102，控制阀块包括第三电磁球阀201、第二换向阀202、第一单向节流阀203、第二平衡阀204和第一平衡阀205，油箱101的液压油依次经由低压油泵102、第三电磁球阀201、第二换向阀202、第一单向节流阀203、第二平衡阀204和第一平衡阀205流入快进腔316，以推动动活塞杆313至伸出位置。在本实施例中，液压泵源还包括第一电机112和第一联轴器113，第一电机112通过第一联轴器113与低压油泵102连接。控制阀块还包括依次设置于低压油泵102下游的第二电磁溢流阀212和第二单向阀217。
快速合模时，第一电机112启动，第二电磁溢流阀212的电磁铁111给电信号，低压油泵102的AL口输出低压油液，低压油液从第二单向阀217的BL口输入，从第二单向阀217的CL口输出。与此同时，第三电磁球阀201的a端电磁铁111和第二换向阀202的b端电磁铁111同时给电信号，低压油液从第二单向阀217的CL口进入第三电磁球阀201的DL口，然后从第三电磁球阀201的HL口进入第二换向阀202的FL口，接着从第二换向阀202的FB口进入第一单向节流阀203的QL口，再由第一单向节流阀203的HL口输出，经由第二平衡阀204的KZ口将第二平衡阀204打开。低压油液从第一平衡阀205输入，再由第一平衡阀205的KL口输出，通过静活塞杆312的YK口进入快进腔316内，在低压油液推动下动活塞杆313快速下降，实现快速合模。
可选地，充液单元32包括充液阀321和高位油箱322，动活塞杆313伸出时，无杆腔314的负压打开充液阀321，高位油箱322的液压油通过充液阀321流入无杆腔314，以推动动活塞杆313。在动活塞杆313下降过程中，无杆腔314产生负压，充液阀321在负压作用下被打开，高位油箱322中的油液被吸入无杆腔314，实现快速充液，无需依靠油泵额外输出流量实现快速合模，降低了成本和能耗，减少了噪音。
可选地，控制阀块还包括第二单向节流阀206，动活塞杆313伸出时，有杆腔315的液压油依次经由第二平衡阀204、第二单向节流阀206和第二换向阀202流入油箱101。在本实施例中，液压泵源还包括回油过滤器107，回油过滤器107设置于第二换向阀202和油箱101之间。
合模过程中，有杆腔315的油液通过YH口输出，经由第二平衡阀204的JL口输入，从第二平衡阀204的IL口输出，再从第二单向节流阀206的HL口输入，通过第二单向节流阀206的GL口输出，再由第二换向阀202的FA口输入，从第二换向阀202的FT口输出，经由回油过滤器107的T2口输入，再经回油过滤器107的T1口输出进入油箱101。第一平衡阀205和第二平衡阀204可使动活塞杆313在运行过程中保持速度平稳无冲击。
可选地，控制阀块还包括第二电磁球阀207，油箱101的液压油依次经由低压油泵102和第二电磁球阀207流入无杆腔314。在本实施例中，控制阀块还包括第一节流阀218和压力传感器220，第一节流阀218与第三电磁球阀201并联设置，压力传感器220设置为实时监测无杆腔314的油液压力。
当动活塞杆313快接近行程终点时，合模由快转慢，此时充液阀321在复位弹簧的作用下关闭。第三电磁球阀201的a端电磁铁111断电失去电信号，低压油液经过第一节流阀218使其流速被限制，同时第二电磁球阀207的a端输入电信号，低压油液从第二单向阀217的CL口输出，经由第二电磁球阀207的EP口输入，再由第二电磁球阀207的EO口输出，通过YG口进入无杆腔314，动活塞杆313慢速到达行程终点，完成合模。
此时油液继续通过YG口进入无杆腔314，动活塞杆313开始预加压，在压力传感器220的监测下，无杆腔314达到设定压力后，低压油泵102关闭，第二换向阀202和第二电磁球阀207失去电信号，阀芯恢复原位。
可选地，液压泵源还包括高压油泵103，控制阀块还包括第一换向阀208和第一电磁球阀209，油箱101的液压油依次经由高压油泵103、第一换向阀208和第一电磁球阀209流入无杆腔314，以对动活塞杆313进行加压。在本实施例中，液压泵源还包括第二电机114和第二联轴器115，第二电机114通过第二联轴器115与高压油泵103连接。控制阀块还包括第一电磁溢流阀211、第一单向阀216和安全阀213，第一电磁溢流阀211设置于高压油泵103和第一换向阀208之间， 第一单向阀216设置于第一换向阀208的下游，安全阀213的第一端设置于第二电磁球阀207和无杆腔314之间，安全阀213的第二端与油箱101连接，安全阀213为系统提供安全保护功能。
此时第二电机114启动，第一电磁溢流阀211的电磁铁111给电信号，高压油泵103的AH口输出高压油液，同时第一换向阀208的a端输入电信号，高压油液从第一换向阀208的PR口输入，再从第一换向阀208的BR口输出，高压油液从第一单向阀216的BH口输入，从第一单向阀216的CH口输出。同时，第一电磁球阀209的a端输入电信号，高压油液从第一电磁球阀209的DH口输入，从第一电磁球阀209的EH口输出，通过YG口进入无杆腔314，进行加压。当压力传感器220检测到无杆腔314的压力达到设定数值，第一电磁球阀209的a端失去电信号，阀芯关闭使动活塞杆313受到的压力保持住，进行保压。同时第二电机114停止动作，第一换向阀208的a端失去电信号恢复原位。
可选地，控制阀块还包括第四电磁球阀210，无杆腔314的液压油经由第四电磁球阀210流入油箱101，以对动活塞杆313进行泄压。当轮胎硫化完成以后，需要先泄压后开模，第四电磁球阀210的a端输入电信号，无杆腔314内的高压油液通过YG口进入第四电磁球阀210的EJ口，再由第四电磁球阀210的EI口输出回到油箱101中。压力传感器220监测到无杆腔314中压力为零时，第四电磁球阀210失去电信号，完成泄压。
可选地，油箱101的液压油依次经由低压油泵102、第三电磁球阀201、第二换向阀202、第二单向节流阀206和第二平衡阀204流入有杆腔315，以推动动活塞杆313至收缩位置。开模时，第一电机112启动，第二电磁溢流阀212的电磁铁111给电信号，低压油泵102的AL口输出低压油液，低压油液从第二单向阀217的BL口输入，从第二单向阀217的CL口输出。与此同时，第三电磁球阀201的a端电磁铁111和第二换向阀202的a端电磁铁111同时给电信号，低压油液从第二单向阀217的CL口进入第三电磁球阀201的DL口，然后从第三电磁球阀201的HL口进入第二换向阀202的FL口，接着从第二换向阀202的FA口进入第二单向节流阀206的GL口，同时低压油液经过充液阀321的KX口顶开充液阀321，低压油液从第二单向节流阀206的HL口进入第二平衡阀204的IL口输入，同时低压油液经第一平衡阀205的FY口将第一平衡阀205打开。低压油液从第二平衡阀204的JL口输出并从YH口进入有杆腔315，在低压油液的推动下动活塞杆313缩回实现快 速开模。
可选地，油箱101的液压油依次经由低压油泵102、第三电磁球阀201、第二换向阀202和第二单向节流阀206流入充液阀321，以打开充液阀321，无杆腔314的液压油经由充液阀321流入高位油箱322。无杆腔314的油液通过YL口输出，从充液阀321的ZL口输入，再由充液阀321的XL口输出进入高位油箱322，此时一个循环结束。当高位油箱322中油液过多时，油液会从高位油箱322的YL口流回油箱101中，避免高位油箱322溢出液压油而影响轮胎品质。
在本实施例中，控制阀块还包括第一压力表214、第二压力表215和第二节流阀219，第一压力表214设置为检测高压油泵103的下游管路压力，第二压力表215设置为检测低压油泵102的下游管路压力，第二节流阀219设置于第四电磁球阀210的上游。
液压泵源还包括液位计104，液位计104设置为检测油箱101内的油液液位。油箱101上安装有空气滤清器110，空气滤清器110设置为油箱101内油液减少、空气进入油箱101内时，对空气中的杂质进行过滤，避免加剧集成油缸31的磨损，保证集成油缸31的使用寿命。油箱101上还装有液位发讯器109，在设备运行过程中会造成液压油的损耗导致油液的减少，液位发讯器109检测到液位降低，可以做到及时报警停机，从而避免低压油泵102和高压油泵103因吸入空气而造成损坏。
由于硫化车间温度较高，油箱101中装有温度控制器108，可以在油温升高的情况下及时检测停机报警，从而保护液压元器件因为高温加速老化和损坏。油箱101上的第一吸油过滤器105、第二吸油过滤器106和回油过滤器107可以保护低压油泵102和高压油泵103，防止其吸入油液中的杂质造成零部件的损坏。油箱101上还装有磁铁111，磁铁111可以吸住系统回油中带回来的铁屑和铁粉.避免吸入油泵中。
本实施例提供的集成式液压系统，其工作过程包括七个步骤：快速合模、合模由快转慢、预加压、加压、保压、泄压和开模。
如图1所示，快速合模时，第一电机112启动，第二电磁溢流阀212的电磁铁111给电信号，低压油泵102的AL口输出低压油液，低压油液从第二单向阀217的BL口输入，从第二单向阀217的CL口输出。与此同时，第三电磁球阀201的a 端电磁铁111和第二换向阀202的b端电磁铁111同时给电信号，低压油液从第二单向阀217的CL口进入第三电磁球阀201的DL口，然后从第三电磁球阀201的HL口进入第二换向阀202的FL口，接着从第二换向阀202的FB口进入第一单向节流阀203的QL口，再由第一单向节流阀203的HL口输出，经由第二平衡阀204的KZ口将第二平衡阀204打开。低压油液从第一平衡阀205输入，再由第一平衡阀205的KL口输出，通过静活塞杆312的YK口进入快进腔316内，在低压油液推动下动活塞杆313快速下降，实现快速合模，如图2和图3所示。
在动活塞杆313下降过程中，无杆腔314产生负压，充液阀321在负压作用下被打开，高位油箱322中的油液被吸入无杆腔314，实现快速充液，无需依靠油泵额外输出流量实现快速合模，降低了成本和能耗，减少了噪音。
合模过程中，有杆腔315的油液通过YH口输出，经由第二平衡阀204的JL口输入，从第二平衡阀204的IL口输出，再从第二单向节流阀206的HL口输入，通过第二单向节流阀206的GL口输出，再由第二换向阀202的FA口输入，从第二换向阀202的FT口输出，经由回油过滤器107的T2口输入，再经回油过滤器107的T1口输出进入油箱101。第一平衡阀205和第二平衡阀204可使动活塞杆313在运行过程中保持速度平稳无冲击。
当动活塞杆313快接近行程终点时，合模由快转慢，此时充液阀321在复位弹簧的作用下关闭。第三电磁球阀201的a端电磁铁111断电失去电信号，低压油液经过第一节流阀218使其流速被限制，同时第二电磁球阀207的a端输入电信号，低压油液从第二单向阀217的CL口输出，经由第二电磁球阀207的EP口输入，再由第二电磁球阀207的EO口输出，通过YG口进入无杆腔314，动活塞杆313慢速到达行程终点，完成合模，如图6所示。
此时油液继续通过YG口进入无杆腔314，动活塞杆313开始预加压，在压力传感器220的监测下，无杆腔314达到设定压力后，低压油泵102关闭，第二换向阀202和第二电磁球阀207失去电信号，阀芯恢复原位。
此时第二电机114启动，第一电磁溢流阀211的电磁铁111给电信号，高压油泵103的AH口输出高压油液，同时第一换向阀208的a端输入电信号，高压油液从第一换向阀208的PR口输入，再从第一换向阀208的BR口输出，高压油液从第一单向阀216的BH口输入，从第一单向阀216的CH口输出。同时，第一电磁球阀209 的a端输入电信号，高压油液从第一电磁球阀209的DH口输入，从第一电磁球阀209的EH口输出，通过YG口进入无杆腔314，进行加压。当压力传感器220检测到无杆腔314的压力达到设定数值，第一电磁球阀209的a端失去电信号，阀芯关闭使动活塞杆313受到的压力保持住，进行保压。同时第二电机114停止动作，第一换向阀208的a端失去电信号恢复原位。
当轮胎硫化完成以后，需要先泄压后开模，第四电磁球阀210的a端输入电信号，无杆腔314内的高压油液通过YG口进入第四电磁球阀210的EJ口，再由第四电磁球阀210的EI口输出回到油箱101中。压力传感器220监测到无杆腔314中压力为零时，第四电磁球阀210失去电信号，完成泄压。
开模时，第一电机112启动，第二电磁溢流阀212的电磁铁111给电信号，低压油泵102的AL口输出低压油液，低压油液从第二单向阀217的BL口输入，从第二单向阀217的CL口输出。与此同时，第三电磁球阀201的a端电磁铁111和第二换向阀202的a端电磁铁111同时给电信号，低压油液从第二单向阀217的CL口进入第三电磁球阀201的DL口，然后从第三电磁球阀201的HL口进入第二换向阀202的FL口，接着从第二换向阀202的FA口进入第二单向节流阀206的GL口，同时低压油液经过充液阀321的KX口顶开充液阀321，低压油液从第二单向节流阀206的HL口进入第二平衡阀204的IL口输入，同时低压油液经第一平衡阀205的FY口将第一平衡阀205打开。低压油液从第二平衡阀204的JL口输出并从YH口进入有杆腔315，在低压油液的推动下动活塞杆313缩回初始位置，如图5所示，实现快速开模。
无杆腔314的油液通过YL口输出，从充液阀321的ZL口输入，再由充液阀321的XL口输出进入高位油箱322，此时一个循环结束。当高位油箱322中油液过多时，油液会从高位油箱322的YL口流回油箱101中，避免高位油箱322溢出液压油而影响轮胎品质。
本实施例提供的集成式液压系统，结构紧凑，减少了占用空间，安装简便，提高了工作效率，管路连接点少，液压油的泄漏几率低，无需依靠油泵额外输出流量实现快速合模，降低了成本和能耗，减少了噪音。
如图4至图6所示，本实施例还提供一种轮胎硫化机，包括上述的集成式液压系统，能够在轮胎硫化机快速合模后完成加压、保压步骤，以及硫化完毕后 轮胎硫化机快速开模前完成泄压步骤，从而有效地保证轮胎硫化质量。轮胎硫化机还包括机架600、上模具400和下模具500，上模具400滑动设置于机架600上，上模具400通过上述集成式液压系统的驱动与下模具500进行合模和开模。

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  1. 一种集成式液压系统，包括液压泵源、控制阀块和执行机构，所述执行机构包括集成油缸(31)和充液单元(32)，所述集成油缸(31)包括缸体(311)、静活塞杆(312)和动活塞杆(313)，所述静活塞杆(312)固定设置于所述缸体(311)内，所述动活塞杆(313)滑动设置于所述缸体(311)内，并与所述静活塞杆(312)滑动配合，所述动活塞杆(313)与所述缸体(311)之间设置有无杆腔(314)和有杆腔(315)，所述动活塞杆(313)与所述静活塞杆(312)之间设置有快进腔(316)，所述充液单元(32)设置为向所述无杆腔(314)中供给液压油，所述液压泵源通过所述控制阀块分别向所述有杆腔(315)、所述无杆腔(314)和所述快进腔(316)中供给液压油。
  2. 根据权利要求1所述的集成式液压系统，其中，所述液压泵源包括油箱(101)和低压油泵(102)，所述控制阀块包括第三电磁球阀(201)、第二换向阀(202)、第一单向节流阀(203)、第二平衡阀(204)和第一平衡阀(205)，所述油箱(101)的液压油依次经由所述低压油泵(102)、所述第三电磁球阀(201)、所述第二换向阀(202)、所述第一单向节流阀(203)、所述第二平衡阀(204)和所述第一平衡阀(205)流入所述快进腔(316)，以推动所述动活塞杆(313)至伸出位置。
  3. 根据权利要求2所述的集成式液压系统，其中，所述充液单元(32)包括充液阀(321)和高位油箱(322)，所述动活塞杆(313)伸出时，所述无杆腔(314)的负压打开所述充液阀(321)，所述高位油箱(322)的液压油通过所述充液阀(321)流入所述无杆腔(314)，以推动所述动活塞杆(313)。
  4. 根据权利要求3所述的集成式液压系统，其中，所述控制阀块还包括第二单向节流阀(206)，所述动活塞杆(313)伸出时，所述有杆腔(315)的液压油依次经由所述第二平衡阀(204)、所述第二单向节流阀(206)和所述第 二换向阀(202)流入所述油箱(101)。
  5. 根据权利要求4所述的集成式液压系统，其中，所述控制阀块还包括第二电磁球阀(207)，所述油箱(101)的液压油依次经由所述低压油泵(102)和所述第二电磁球阀(207)流入所述无杆腔(314)。
  6. 根据权利要求5所述的集成式液压系统，其中，所述液压泵源还包括高压油泵(103)，所述控制阀块还包括第一换向阀(208)和第一电磁球阀(209)，所述油箱(101)的液压油依次经由所述高压油泵(103)、所述第一换向阀(208)和所述第一电磁球阀(209)流入所述无杆腔(314)，以对所述动活塞杆(313)进行加压。
  7. 根据权利要求6所述的集成式液压系统，其中，所述控制阀块还包括第四电磁球阀(210)，所述无杆腔(314)的液压油经由所述第四电磁球阀(210)流入所述油箱(101)，以对所述动活塞杆(313)进行泄压。
  8. 根据权利要求4所述的集成式液压系统，其中，所述油箱(101)的液压油依次经由所述低压油泵(102)、所述第三电磁球阀(201)、所述第二换向阀(202)、所述第二单向节流阀(206)和所述第二平衡阀(204)流入所述有杆腔(315)，以推动所述动活塞杆(313)至收缩位置。
  9. 根据权利要求8所述的集成式液压系统，其中，所述油箱(101)的液压油依次经由所述低压油泵(102)、所述第三电磁球阀(201)、所述第二换向阀(202)和所述第二单向节流阀(206)流入所述充液阀(321)，以打开所述充液阀(321)，所述无杆腔(314)的液压油经由所述充液阀(321)流入所述高位油箱(322)。
  10. 一种轮胎硫化机，包括机架(600)、上模具(400)、下模具(500)，以及如权利要求1-9任一项所述的集成式液压系统；
    其中，所述上模具(400)滑动设置于所述机架(600)上，所述集成式液压系统设置为驱动所述上模具(400)滑动，以使所述上模具(400)与所述下模具(500)进行合模和开模。
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