Hydraulic system for flip stripper machine of aerated concrete block production line

Abstract

The utility model provides a hydraulic system for a flip stripper machine in an aerated concrete block production line, which relates to the technical field of hydraulic control and comprises an oil tank device, a servo oil supply device, a hydraulic control valve group and an actuating mechanism, the oil tank device comprises a main oil tank, and the servo oil supply device comprises a hydraulic pump, a servo motor, an encoder, a servo driver and a pressure sensor. The hydraulic control valve set comprises an electro-hydraulic proportional valve, a counterbalance valve, a first hydraulic control one-way valve, a second hydraulic control one-way valve, a first two-position four-way electromagnetic valve, a second two-position four-way electromagnetic valve, an electro-hydraulic directional control valve, a first one-way balance valve, a second one-way balance valve, a first three-position four-way electromagnetic valve, a third hydraulic control one-way valve, a fourth hydraulic control one-way valve and a flow distributing and collecting valve. The executing mechanism comprises a lifting oil cylinder set, an overturning oil cylinder set, a mold opening and closing oil cylinder set and a grabbing hook oil cylinder set. Energy-saving and stable operation of the hydraulic system is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control, in particular to a hydraulic system for a flip demoulding machine of an aerated concrete block production line. Background Art

[0002] Aerated concrete block production is to add a small amount of cement to fly ash, river sand, gravel, stone powder, waste ceramsite slag, smelting slag and other materials to produce new wall material blocks. With the improvement of aerated concrete block production capacity and efficiency, the specifications of the hydraulic system of the production line are also increasing. The energy waste and unstable operation of the hydraulic system are gradually exposed, which has a great impact on the service life of the equipment and the yield rate of the product. Utility Model Content

[0003] The utility model aims to provide a hydraulic system for an air-flip demoulding machine of an aerated concrete block production line, which can realize the control of the actions of the actuator, such as hook grabbing, hook loosening, lifting, falling, flipping, opening and closing molds, and at the same time, accurately control the flow and pressure of the hydraulic control valve group through a servo oil supply device, so as to realize energy-saving and stable operation of the hydraulic system.

[0004] The above technical objectives of the utility model are achieved through the following technical solutions:

[0005] A hydraulic system for an air-turning demoulding machine of an aerated concrete block production line, comprising an oil tank device, a servo oil supply device, a hydraulic control valve group and an actuator, wherein the oil tank device comprises a main oil tank, and the oil tank device is provided with an output oil port YX, an oil return port YT and an oil port YL connected to the main oil tank;

[0006] The servo oil supply device includes a hydraulic pump, a servo motor, an encoder, a servo driver and a pressure sensor. The input oil port of the hydraulic pump is connected to the output oil port YX of the oil tank device. The servo motor is connected to the hydraulic pump control. The encoder is connected to the servo motor and is feedback connected to the servo driver. The servo driver is controlled and connected to the servo motor and the hydraulic control valve group. The pressure sensor is connected to the output oil port of the hydraulic pump and is feedback connected to the servo driver. The servo oil supply device is also provided with an oil port SC. The output oil port of the hydraulic pump is connected to the oil port SC.

[0007] The hydraulic control valve group is provided with oil ports SR, HT, AY, BW, BY, CW, CX, CY, DW, and DY, and the oil port SR is connected with the oil port SC of the servo oil supply device, and the oil port HT is connected with the oil return port YT of the oil tank device;

[0008] The hydraulic control valve group includes an electro-hydraulic proportional valve, a back pressure valve, a first hydraulically controlled one-way valve and a second hydraulically controlled one-way valve. The electro-hydraulic proportional valve includes oil ports AP, AT, AA, AB and proportional solenoids YVAA and YVAB. The back pressure valve includes oil ports AC and AD. The first hydraulically controlled one-way valve includes oil ports AE, AF and AG. The second hydraulically controlled one-way valve includes oil ports AK, AJ and AL.

[0009] The oil port AP of the electro-hydraulic proportional valve is connected to the oil port SR, the oil port AT is connected to the oil port HT, the oil port AA is connected to the oil port AC of the back pressure valve and the oil port AJ of the second hydraulically controlled one-way valve, and the oil port AB is blocked; the oil port AE of the first hydraulically controlled one-way valve is connected to the oil port AD of the back pressure valve and the oil port AK of the second hydraulically controlled one-way valve, and the oil port AF is connected to the oil port AY; the oil port AG of the first hydraulically controlled one-way valve is connected to the second two-position four-way solenoid valve, and the oil port AL of the second hydraulically controlled one-way valve is connected to the first two-position four-way solenoid valve;

[0010] The hydraulic control valve group also includes an electro-hydraulic reversing valve, a first one-way balancing valve and a second one-way balancing valve. The electro-hydraulic reversing valve includes BP, BT, BA, BB and electromagnets YVBA and YVBB, and the oil port BP is connected to the oil port SR, and the oil port BT is connected to the oil port HT; the first one-way balancing valve is connected in series between the oil port BA of the electro-hydraulic reversing valve and the oil port BW of the hydraulic control valve group, the second one-way balancing valve is connected in series between the oil port BB of the electro-hydraulic reversing valve and the oil port BY of the hydraulic control valve group, and the control oil port of the first one-way balancing valve is connected to the oil port BB, and the control oil port of the second one-way balancing valve is connected to the oil port BA;

[0011] The hydraulic control valve group further includes a first three-position four-way solenoid valve, a third hydraulically controlled one-way valve, a fourth hydraulically controlled one-way valve and a flow-dividing and collecting valve. The first three-position four-way solenoid valve includes CP, CT, CA, CB and electromagnets YVCA and YVCB. The flow-dividing and collecting valve includes oil ports CC, CD and CE. The oil port CP of the first three-position four-way solenoid valve is connected to the oil port SR, the oil port CT is connected to the oil port HT, and the oil port CD and the oil port CE of the flow-dividing and collecting valve are respectively connected to the oil port CW and the oil port CX of the hydraulic control valve group.

[0012] The third hydraulically controlled one-way valve is connected in series between the oil port CA of the first three-position four-way solenoid valve and the oil port CC of the flow dividing and collecting valve, and the fourth hydraulically controlled one-way valve is connected in series between the oil port CB of the first three-position four-way solenoid valve and the oil port CY of the hydraulic control valve group, and the control oil port of the third hydraulically controlled one-way valve is connected to the oil port CB, and the control oil port of the fourth hydraulically controlled one-way valve is connected to the oil port CA;

[0013] The hydraulic control valve group also includes a second three-position four-way solenoid valve, a fifth hydraulically controlled one-way valve and a sixth hydraulically controlled one-way valve, wherein the second three-position four-way solenoid valve includes DP, DT, DA, DB and electromagnets YVDA and YVDB, and the oil port DP is connected with the oil port SR, and the oil port DT is connected with the oil port HT; the fifth hydraulically controlled one-way valve is connected in series between the oil port DA of the second three-position four-way solenoid valve and the oil port DW of the hydraulic control valve group, the sixth hydraulically controlled one-way valve is connected in series between the oil port DB of the second three-position four-way solenoid valve and the oil port DY of the hydraulic control valve group, and the control oil port of the fifth hydraulically controlled one-way valve is connected with the oil port DB, and the control oil port of the sixth hydraulically controlled one-way valve is connected with the oil port DA;

[0014] The actuator includes a lifting cylinder group, a flipping cylinder group, a mold opening and closing cylinder group and a grab hook cylinder group. The lifting cylinder group includes two parallel lifting cylinders, the rodless chambers of the two lifting cylinders are connected to each other and to the oil port YL of the oil tank device, and the rod chambers are connected to each other and to the oil port AY of the hydraulic control valve group;

[0015] The tilting cylinder group includes two parallel tilting cylinders, the rodless chambers of the two tilting cylinders are connected to each other and to the oil port BW of the hydraulic control valve group, and the rod chambers are connected to each other and to the oil port BY of the hydraulic control valve group;

[0016] The mold opening and closing cylinder group includes two parallel mold opening and closing cylinders, the rodless chambers of the two mold opening and closing cylinders are respectively connected to the oil port CW and the oil port CX of the hydraulic control valve group in a one-to-one correspondence, and the rod chambers of the two mold opening and closing cylinders are connected to each other and to the oil port CY of the hydraulic control valve group;

[0017] The grab hook cylinder group includes two parallel grab hook cylinders, the rodless chambers of the two grab hook cylinders are connected to each other and to the oil port DW of the hydraulic control valve group, and the rod chambers are connected to each other and to the oil port DY of the hydraulic control valve group.

[0018] Further, the first two-position four-way solenoid valve includes oil ports EP, ET, EA, EB and electromagnet YVEA, and its oil port EP is connected with oil port SR, oil port ET is connected with oil port HT, oil port EA is blocked, and oil port EB is connected with oil port AL of the second hydraulically controlled one-way valve; the second two-position four-way solenoid valve includes oil ports FP, FT, FA, FB and electromagnet YVFA, and its oil port FP is connected with oil port SR, oil port FT is connected with oil port HT, oil port FA is blocked, and oil port FB is connected with oil port AG of the first hydraulically controlled one-way valve.

[0019] Furthermore, the servo oil supply device also includes an electromagnetic overflow valve, which is connected between the hydraulic pump oil output port and the oil return port YT of the oil tank device. The electromagnetic overflow valve includes an electromagnet YVGA, and the servo oil supply device releases pressure when the electromagnet YVGA loses power, and builds pressure when the electromagnet YVGA is energized.

[0020] Furthermore, the servo oil supply device also includes a high-pressure pressure gauge, and the high-pressure pressure gauge is connected to the output oil port of the hydraulic pump.

[0021] Furthermore, the main oil tank includes an oil suction area and an oil return area, and the oil suction area is connected to the output oil port YX, and the oil return area is connected to the oil return port YT and the oil port YL; the oil tank device also includes a circulating pump, a circulating motor and a circulating filter, the oil suction port of the circulating pump is connected to the oil return area of ​​the main oil tank, the circulating motor is connected to the circulating pump, the circulating filter is connected to the oil outlet of the circulating pump and the oil suction area of ​​the main oil tank, and a low-pressure pressure gauge is bypassed between the circulating pump and the circulating filter.

[0022] Furthermore, a temperature controller is provided in the oil suction area of ​​the main oil tank, an air cooler is provided between the circulation filter and the oil suction area of ​​the main oil tank, and the temperature controller and the air cooler are connected for communication control.

[0023] Furthermore, the oil suction area of ​​the main oil tank is also connected to an air filter, and the side wall of the main oil tank is also provided with a liquid level gauge.

[0024] Furthermore, the oil tank device also includes an oil return filter, the oil inlet of the oil return filter is connected to the oil return port YT of the oil tank device, and the oil outlet is connected to the oil return area of ​​the main oil tank.

[0025] In summary, the utility model has the following beneficial effects:

[0026] 1. The utility model realizes the control of the actions of the actuators such as grabbing, releasing, lifting, falling, flipping, opening and closing of molds, etc. by setting an oil tank device, a servo oil supply device, a hydraulic control valve group and an actuator including a lifting cylinder group, a flipping cylinder group, a mold opening and closing cylinder group and a grabbing cylinder group;

[0027] 2. The utility model is provided with a servo oil supply device including a hydraulic pump, a servo motor, an encoder, a servo driver and a pressure sensor. The servo driver receives the flow and pressure signal instructions required for each stage of the operation of the set actuator, controls the speed of the servo motor, and adjusts the output flow of the hydraulic pump. The encoder detects the actual flow and converts it into a flow signal and feeds it back to the servo driver for comparison with the set flow signal, so that the servo driver adjusts the error to ensure that the actual output flow of the hydraulic pump is the flow required for operation; the pressure sensor detects the pressure of the hydraulic pump output oil port and converts it into a pressure signal and feeds it back to the servo driver for comparison with the set pressure signal, so that the servo driver adjusts the error to ensure that the pressure of the hydraulic pump output oil port is the pressure required for operation; in this way, the servo oil supply device is used to realize accurate control of the flow and pressure of the hydraulic control valve group, and realize energy-saving and stable operation of the hydraulic system;

[0028] 3. The utility model is provided with a circulation pump, a circulation motor, a circulation filter, an air cooler, a temperature controller, etc., so as to realize the circulation and filtration of the hydraulic oil in the oil suction area and the oil return area of ​​the main oil tank, and automatically realize the heat dissipation and cooling of the hydraulic oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is the schematic diagram of the hydraulic system for the flip demoulding machine of the aerated concrete block production line.

[0030] In the figure, 01, oil tank device; 02, servo oil supply device; 03, hydraulic control valve group; 04, actuator; 1, main oil tank; 1-1, oil suction area; 1-2, oil return area; 2, liquid level gauge; 3, air filter; 4, temperature controller; 5, return oil filter; 6, circulation pump; 7, circulation motor; 8, low pressure gauge; 9, circulation filter; 10, air cooler; 11, hydraulic pump; 12, servo motor; 13, encoder; 14, servo driver; 15, pressure sensor; 16, electromagnetic overflow valve; 17, high pressure gauge; 18, electro-hydraulic proportional valve; 19, back pressure valve; 20, first hydraulic control check valve; 21 , the second hydraulically controlled one-way valve; 22, the first two-position four-way solenoid valve; 23, the second two-position four-way solenoid valve; 24, the electro-hydraulic reversing valve; 25, the first one-way balancing valve; 26, the second one-way balancing valve; 27, the first three-position four-way solenoid valve; 28, the third hydraulically controlled one-way valve; 29, the fourth hydraulically controlled one-way valve; 30, the flow dividing and collecting valve; 31, the second three-position four-way solenoid valve; 32, the fifth hydraulically controlled one-way valve; 33, the sixth hydraulically controlled one-way valve; 34, the lifting cylinder group; 341, the lifting cylinder; 35, the flipping cylinder group; 351, the flipping cylinder; 36, the mold opening and closing cylinder group; 361, the mold opening and closing cylinder; 37, the grabbing hook cylinder group; 371, the grabbing hook cylinder. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0032] A hydraulic system for an air-turning demoulding machine in an aerated concrete block production line, such as Figure 1 As shown, it includes an oil tank device 01, a servo oil supply device 02, a hydraulic control valve group 03 and an actuator 04. The servo oil supply device 02 and the hydraulic control valve group 03 are used to adjust the oil circuit direction as well as the hydraulic oil flow and pressure between the oil tank device 01 and the actuator 04, so as to control the actuator 04 to perform different actions and ensure the energy-saving and stable operation of the entire hydraulic system.

[0033] like Figure 1 As shown, the oil tank device 01 includes a main oil tank 1, a liquid level gauge 2, an air filter 3, a temperature controller 4, and an oil return filter 5. The main oil tank 1 is divided into an oil suction area 1-1 and an oil return area 1-2. The liquid level gauge 2 is arranged on the side wall of the main oil tank 1. The air filter 3 and the temperature controller 4 are connected to the oil suction area 1-1 of the main oil tank 1, and the temperature controller 4 is provided with a low temperature signal point ST1 and a high temperature signal point ST2. The oil tank device 01 is provided with an output oil port YX, an oil return port YT, and an oil port YL, wherein the oil suction area 1-1 is connected to the output oil port YX, the oil return area 1-2 is connected to the oil return port YT and the oil port YL, and the oil return filter 5 is connected in series between the oil return area 1-2 and the oil return port YT to filter the hydraulic oil flowing back to the main oil tank 1.

[0034] like Figure 1 As shown, the oil tank device 01 also includes a circulating pump 6, a circulating filter 9 and an air cooler 10 connected in series in sequence. The circulating pump 6 is connected to a circulating motor 7, and the oil suction port of the circulating pump 6 is connected to the oil return area 1-2 of the main oil tank 1, and the oil outlet of the air cooler 10 is connected to the oil suction area 1-1 of the main oil tank 1. Among them, a low-pressure pressure gauge 8 is bypassed between the circulating pump 6 and the circulating filter 9 to observe the hydraulic oil circulation pressure between the oil suction area 1-1 and the oil return area 1-2. In addition, the return oil filter 5 and the circulating filter 9 are respectively provided with transmitters SP1 and SP2 for filter element blockage alarm, and the temperature controller 4 is connected to the air cooler 10 for communication control.

[0035] like Figure 1As shown, when the hydraulic system is working, the circulation motor 7 runs, and the hydraulic oil in the oil return area 1-2 is sent to the oil suction area 1-1 of the main oil tank 1 through the circulation pump 6, the circulation filter 9 and the air cooler 10, so as to realize the circulation filtration of the hydraulic oil and ensure the cleanliness of the hydraulic oil in the oil suction area 1-1. When the temperature of the hydraulic oil in the oil suction area 1-1 is higher than the high temperature signal point ST2 set by the temperature controller 4, the air cooler 10 starts the heat dissipation fan to dissipate the heat and cool down the passing hydraulic oil. When the temperature of the hydraulic oil in the oil suction area 1-1 is lower than the low temperature signal point ST1 set by the temperature controller 4, the heat dissipation fan of the air cooler 10 stops working.

[0036] like Figure 1 As shown, the servo oil supply device 02 includes a hydraulic pump 11, a servo motor 12, an encoder 13, a servo driver 14 and a pressure sensor 15. The input oil port of the hydraulic pump 11 is connected to the output oil port YX of the oil tank device 01. The servo motor 12 is connected to the hydraulic pump 11 for control. The encoder 13 is connected to the servo motor 12 and is feedback-connected to the servo driver 14. The servo driver 14 is controlled and connected to the servo motor 12 and the hydraulic control valve group 03. The pressure sensor 15 is connected to the output oil port of the hydraulic pump 11 and is feedback-connected to the servo driver 14. The servo oil supply device 02 also includes a high-pressure pressure gauge 17 and an oil port SC. The high-pressure pressure gauge 17 is connected to the output oil port of the hydraulic pump 11, and the output oil port of the hydraulic pump 11 is connected to the oil port SC. The servo oil supply device 02 also includes an electromagnetic overflow valve 16 connected between the oil output port of the hydraulic pump 11 and the return oil port YT of the oil tank device 01. The electromagnetic overflow valve 16 includes an electromagnet YVGA, and the servo oil supply device 02 releases pressure when the electromagnet YVGA loses power, and builds pressure when the electromagnet YVGA is energized.

[0037] like Figure 1 As shown, the servo driver 14 receives the flow and pressure signal instructions required for each stage of the operation of the set actuator 04, controls the speed of the servo motor 12, and adjusts the output flow of the hydraulic pump 11. The encoder 13 detects the actual flow and converts it into a flow signal and feeds it back to the servo driver 14 for comparison with the set flow signal, so that the servo driver 14 adjusts the error to ensure that the actual output flow of the hydraulic pump 11 is the flow required for operation. The pressure sensor 15 detects the output oil port pressure of the hydraulic pump 11 and converts it into a pressure signal and feeds it back to the servo driver 14 for comparison with the set pressure signal, so that the servo driver 14 adjusts the error to ensure that the output oil port pressure of the hydraulic pump 11 is the pressure required for operation. In this way, the servo oil supply device 02 is used to achieve accurate control of the flow and pressure of the hydraulic control valve group 03, and realize energy-saving and stable operation of the hydraulic system.

[0038] like Figure 1As shown, the hydraulic control valve group 03 is provided with oil ports SR, HT, AY, BW, BY, CW, CX, CY, DW, and DY, and the oil port SR is connected with the oil port SC of the servo oil supply device 02, and the oil port HT is connected with the oil return port YT of the oil tank device 01.

[0039] like Figure 1 As shown, the hydraulic control valve group 03 includes an electro-hydraulic proportional valve 18, a back pressure valve 19, a first hydraulically controlled one-way valve 20, a second hydraulically controlled one-way valve 21, a first two-position four-way solenoid valve 22, and a second two-position four-way solenoid valve 23. The electro-hydraulic proportional valve 18 includes oil ports AP, AT, AA, AB and proportional solenoids YVAA, YVAB, the back pressure valve 19 includes oil ports AC, AD, the first hydraulically controlled one-way valve 20 includes oil ports AE, AF, AG, the second hydraulically controlled one-way valve 21 includes oil ports AK, AJ, AL, the first two-position four-way solenoid valve 22 includes oil ports EP, ET, EA, EB and solenoid YVEA, and the second two-position four-way solenoid valve 23 includes oil ports FP, FT, FA, FB and solenoid YVFA.

[0040] like Figure 1 As shown, the oil port AP of the electro-hydraulic proportional valve 18 is connected to the oil port SR, the oil port AT is connected to the oil port HT, the oil port AA is connected to the oil port AC of the back pressure valve 19 and the oil port AJ of the second hydraulically controlled one-way valve 21, and the oil port AB is blocked. The oil port AE of the first hydraulically controlled one-way valve 20 is connected to the oil port AD of the back pressure valve 19 and the oil port AK of the second hydraulically controlled one-way valve 21, and the oil port AF is connected to the oil port AY. The oil port EP of the first two-position four-way solenoid valve 22 is connected to the oil port SR, the oil port ET is connected to the oil port HT, the oil port EA is blocked, and the oil port EB is connected to the oil port AL of the second hydraulically controlled one-way valve 21. The oil port FP of the second two-position four-way solenoid valve 23 is connected to the oil port SR, the oil port FT is connected to the oil port HT, the oil port FA is blocked, and the oil port FB is connected to the oil port AG of the first hydraulically controlled one-way valve 20.

[0041] like Figure 1As shown, when the proportional electromagnet YVAA of the electro-hydraulic proportional valve 18 inputs a signal, its oil port AP is connected to the oil port AB, and the oil port AA is connected to the oil port AT; conversely, when the electromagnet YVAB inputs a signal, its oil port AP is connected to the oil port AA, and the oil port AB is connected to the oil port AT. By changing the size of the input signal of the proportional electromagnets YVAA and YVAB, the opening size of the electro-hydraulic proportional valve 18 can be changed, thereby changing the flow through the electro-hydraulic proportional valve 18 to achieve buffering. When the electromagnet YVEA of the first two-position four-way solenoid valve 22 loses power, its oil port EP is connected to the oil port EA, and the oil port EB is connected to the oil port ET. Conversely, when the electromagnet YVEA is energized, the oil port EP is connected to the oil port EB, and the oil port EA is connected to the oil port ET. When the electromagnet YVFA of the second two-position four-way solenoid valve 23 loses power, its oil port FP is connected with the oil port FA, and the oil port FB is connected with the oil port FT. Conversely, when the electromagnet YVFA is energized, the oil port FP is connected with the oil port FB, and the oil port FA is connected with the oil port FT.

[0042] like Figure 1 As shown, the hydraulic control valve group 03 also includes an electro-hydraulic reversing valve 24, a first one-way balancing valve 25 and a second one-way balancing valve 26. The electro-hydraulic reversing valve 24 includes BP, BT, BA, BB and electromagnets YVBA and YVBB, wherein the oil port BP is connected to the oil port SR, the oil port BT is connected to the oil port HT, and when the electromagnet YVBA is energized, its oil port BP is connected to the oil port BB, and the oil port BA is connected to the oil BT, and vice versa when the electromagnet YVBB is energized, its oil port BP is connected to the oil port BA, and the oil port BB is connected to the oil port BT. The first one-way balancing valve 25 is connected in series between the oil port BA of the electro-hydraulic reversing valve 24 and the oil port BW of the hydraulic control valve group 03, and the second one-way balancing valve 26 is connected in series between the oil port BB of the electro-hydraulic reversing valve 24 and the oil port BY of the hydraulic control valve group 03, and the control oil port of the first one-way balancing valve 25 is connected to the oil port BB, and the control oil port of the second one-way balancing valve 26 is connected to the oil port BA.

[0043] like Figure 1 As shown, the hydraulic control valve group 03 also includes a first three-position four-way solenoid valve 27, a third hydraulically controlled one-way valve 28, a fourth hydraulically controlled one-way valve 29 and a flow-dividing and collecting valve 30. The first three-position four-way solenoid valve 27 includes CP, CT, CA, CB and electromagnets YVCA and YVCB, wherein the oil port CP is connected to the oil port SR, the oil port CT is connected to the oil port HT, and when the electromagnet YVCA is energized, its oil port CP is connected to the oil port CB, and the oil port CA is connected to the oil CT, and vice versa, when the electromagnet YVCB is energized, its oil port CP is connected to the oil port CA, and the oil port CB is connected to the oil port CT. The flow-dividing and collecting valve 30 includes oil ports CC, CD, and CE, and the oil ports CD and CE are respectively connected to the oil ports CW and CX of the hydraulic control valve group 03.

[0044] like Figure 1As shown, the third hydraulically controlled one-way valve 28 is connected in series between the oil port CA of the first three-position four-way solenoid valve 27 and the oil port CC of the diverter and collector valve 30, and the fourth hydraulically controlled one-way valve 29 is connected in series between the oil port CB of the first three-position four-way solenoid valve 27 and the oil port CY of the hydraulic control valve group 03, and the control oil port of the third hydraulically controlled one-way valve 28 is connected to the oil port CB, and the control oil port of the fourth hydraulically controlled one-way valve 29 is connected to the oil port CA.

[0045] like Figure 1 As shown, the hydraulic control valve group 03 also includes a second three-position four-way solenoid valve 31, a fifth hydraulically controlled one-way valve 32 and a sixth hydraulically controlled one-way valve 33. The second three-position four-way solenoid valve 31 includes DP, DT, DA, DB and electromagnets YVDA and YVDB, wherein the oil port DP is connected to the oil port SR, the oil port DT is connected to the oil port HT, and when the electromagnet YVDA is energized, its oil port DP is connected to the oil port DB, and the oil port DA is connected to the oil DT, and vice versa, when the electromagnet YVDB is energized, its oil port DP is connected to the oil port DA, and the oil port DB is connected to the oil port DT. The fifth hydraulically controlled one-way valve 32 is connected in series between the oil port DA of the second three-position four-way solenoid valve 31 and the oil port DW of the hydraulic control valve group 03, and the sixth hydraulically controlled one-way valve 33 is connected in series between the oil port DB of the second three-position four-way solenoid valve 31 and the oil port DY of the hydraulic control valve group 03, and the control oil port of the fifth hydraulically controlled one-way valve 32 is connected to the oil port DB, and the control oil port of the sixth hydraulically controlled one-way valve 33 is connected to the oil port DA.

[0046] like Figure 1 As shown, the actuator 04 includes a lifting cylinder group 34, a flipping cylinder group 35, a mold opening and closing cylinder group 36 and a grabbing hook cylinder group 37, and the lifting cylinder group 34 and the flipping cylinder group 35 are parallel, the mold opening and closing cylinder group 36 and the grabbing hook cylinder group 37 are parallel, and the lifting cylinder group 34 is perpendicular to the mold opening and closing cylinder group 36.

[0047] Specifically, Figure 1As shown, the lifting cylinder group 34 includes two parallel lifting cylinders 341, the rodless chambers of the two lifting cylinders 341 are connected to each other and to the oil port YL of the oil tank device 01, and the rod chambers are connected to each other and to the oil port AY of the hydraulic control valve group 03. The flipping cylinder group 35 includes two parallel flipping cylinders 351, the rodless chambers of the two flipping cylinders 351 are connected to each other and to the oil port BW of the hydraulic control valve group 03, and the rod chambers are connected to each other and to the oil port BY of the hydraulic control valve group 03. The mold opening and closing cylinder group 36 includes two parallel mold opening and closing cylinders 361, the rodless chambers of the two mold opening and closing cylinders 361 are connected to the oil port CW and the oil port CX of the hydraulic control valve group 03 respectively, and the rod chambers of the two mold opening and closing cylinders 361 are connected to each other and to the oil port CY of the hydraulic control valve group 03. The grab hook cylinder group 37 includes two parallel grab hook cylinders 371 , the rodless chambers of the two grab hook cylinders 371 are connected to each other and to the oil port DW of the hydraulic control valve group 03 , and the rod chambers are connected to each other and to the oil port DY of the hydraulic control valve group 03 .

[0048] Working principle and usage of the utility model:

[0049] Operation control of grab hook cylinder group 37: like Figure 1 As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the YVDB of the second three-position four-way electromagnetic valve 31 are energized, the oil port DP of the second three-position four-way electromagnetic valve 31 is connected with the oil port DA, and the oil port DB is connected with the oil port DT. The hydraulic oil in the suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port DP of the second three-position four-way electromagnetic valve 31, the oil port DA, the fifth hydraulically controlled one-way valve 32, and the oil port DW to enter the rodless chamber of the two grabbing hook cylinders 371, and at the same time, the hydraulic oil in the oil port DA enters the sixth hydraulically controlled one-way valve 33 to control the oil port to open the sixth hydraulically controlled one-way valve 33. The hydraulic oil in the rod chamber of the two grab hook cylinders 371 returns to the return oil area 1-2 of the main oil tank 1 through the oil port DY, the sixth hydraulically controlled one-way valve 33, the oil port DB of the second three-position four-way solenoid valve 31, the oil port DT, the oil port HT, the return oil port YT, and the return oil filter 5, and the piston rods of the two grab hook cylinders 371 are extended synchronously to realize the grab hook action.

[0050] On the contrary, if Figure 1As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the YVDA of the second three-position four-way electromagnetic valve 31 are energized, the oil port DP of the second three-position four-way electromagnetic valve 31 is connected to the oil port DB, and the oil port DA is connected to the oil DT. The hydraulic oil in the suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port DP of the second three-position four-way electromagnetic valve 31, the oil port DB, the sixth hydraulically controlled one-way valve 33, and the oil port DY to enter the rod chambers of the two grabbing hook cylinders 371. At the same time, the hydraulic oil in the oil port DB enters the control oil port of the fifth hydraulically controlled one-way valve 32 to open the fifth hydraulically controlled one-way valve 32. The hydraulic oil in the rodless chamber of the two grab hook cylinders 371 returns to the return oil area 1-2 of the main oil tank 1 through the oil port DW, the fifth hydraulically controlled one-way valve 32, the oil port DA of the second three-position four-way solenoid valve 31, the oil port DT, the oil port HT, the return oil port YT, and the return oil filter 5, and the piston rods of the two grab hook cylinders 371 are retracted synchronously to realize the hook releasing action.

[0051] like Figure 1 As shown, the electromagnets YVDA and YVDB of the second three-position four-way solenoid valve 31 are both de-energized, the oil port DA and the oil port DB of the second three-position four-way solenoid valve 31 are connected to the return oil area 1-2 of the main oil tank 1 through the oil port DT, the oil port HT, the return oil port YT, and the return oil filter 5, the fifth hydraulically controlled one-way valve 32 and the sixth hydraulically controlled one-way valve 33 are closed, and the grab hook cylinder group 37 is locked in the original state.

[0052] Lifting cylinder group 34 operation control: like Figure 1 As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the proportional electromagnet YVAB of the electro-hydraulic proportional valve 18 are energized, the oil port AP of the electro-hydraulic proportional valve 18 is connected to the oil port AA, and the oil port AB is connected to the oil port AT. The hydraulic oil in the oil suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port AP, the oil port AA of the electro-hydraulic proportional valve 18, the oil port AJ, the oil port AK of the second hydraulic control check valve 21, the oil port AE, the oil port AF, and the oil port AY of the first hydraulic control check valve 20 into the rod chambers of the two lifting cylinders 341. The hydraulic oil in the rodless chambers of the two lifting cylinders 341 returns to the oil return area 1-2 of the main oil tank 1 through the oil port YL, and the piston rods of the two lifting cylinders 341 are retracted synchronously to achieve the lifting action.

[0053] On the contrary, if Figure 1 As shown, the electromagnet YVGA of the electromagnetic overflow valve 16, the YVEA of the first two-position four-way solenoid valve 22, the YVFA of the second two-position four-way solenoid valve 23, and the proportional solenoid YVAA of the electro-hydraulic proportional valve 18 are energized, the oil port EP of the first two-position four-way solenoid valve 22 is connected with the oil port EB, the oil port EA is connected with the oil port ET, the oil port FP of the second two-position four-way solenoid valve 23 is connected with the oil port FB, the oil port FA is connected with the oil port FT, the oil port AP of the electro-hydraulic proportional valve 18 is connected with the oil port AB, and the oil port AA is connected with the oil port AT.

[0054] like Figure 1 As shown, the hydraulic oil in the oil suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port EP of the first two-position four-way solenoid valve 22, and the oil port EB to the oil port AL of the second hydraulically controlled one-way valve 21, and the second hydraulically controlled one-way valve 21 is opened. At the same time, the hydraulic oil passes through the oil port FP, the oil port FB of the second two-position four-way solenoid valve 23, and the oil port AG of the first hydraulically controlled one-way valve 20, and the first hydraulically controlled one-way valve 20 is opened. The hydraulic oil in the rod chamber of the two lifting cylinders 341 passes through the oil port AY, the oil port AF of the first hydraulically controlled one-way valve 20, the oil port AE, the oil port AK of the second hydraulically controlled one-way valve 21, the oil port AJ, the oil port AA of the electro-hydraulic proportional valve 18, the oil port AT, the oil port HT, the oil return port YT, and the oil return filter 5 to return to the oil return area 1-2 of the main oil tank 1. Under the action of the dead weight, the piston rods of the two lifting cylinders 341 are synchronously extended to achieve rapid drop when unloaded.

[0055] In addition, if Figure 1 As shown, the electromagnet YVGA of the electromagnetic overflow valve 16, the YVFA of the second two-position four-way electromagnetic valve 23, and the proportional electromagnet YVAA of the electro-hydraulic proportional valve 18 are energized, the oil port FP of the second two-position four-way electromagnetic valve 23 is connected to the oil port FB, the oil port FA is connected to the oil port FT, the oil port AP of the electro-hydraulic proportional valve 18 is connected to the oil port AB, and the oil port AA is connected to the oil port AT. The hydraulic oil in the suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port FP of the second two-position four-way electromagnetic valve 23, the oil port FB, and the oil port AG of the first hydraulically controlled one-way valve 20, and the first hydraulically controlled one-way valve 20 is opened. The hydraulic oil in the rod chamber of the two lifting cylinders 341 returns to the return oil area 1-2 of the main oil tank 1 through the oil port AY, the oil port AF of the first hydraulically controlled one-way valve 20, the oil port AE, the oil port AD of the back pressure valve 19, the oil port AC, the oil port AA of the electro-hydraulic proportional valve 18, the oil port AT, the oil port HT, the return oil port YT, and the return oil filter 5. Under the action of their own weight, the piston rods of the two lifting cylinders 341 are extended synchronously to achieve a smooth fall when loaded.

[0056] Operation control of the turning cylinder group 35: like Figure 1As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the YVBB of the electro-hydraulic reversing valve 24 are energized, the oil port BP of the electro-hydraulic reversing valve 24 is connected to the oil port BA, and the oil port BB is connected to the oil port BT. The hydraulic oil in the suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port BP of the electro-hydraulic reversing valve 24, the oil port BA, the first one-way balancing valve 25, and the oil port BW to enter the rodless chamber of the two tilting cylinders 351, and at the same time, the hydraulic oil in the oil port BA enters the control oil port of the second one-way balancing valve 26 to open the second one-way balancing valve 26. The hydraulic oil in the rod chamber of the two tilting cylinders 351 returns to the return oil area 1-2 of the main oil tank 1 through the oil port BY, the second one-way balancing valve 26, the oil port BB of the electro-hydraulic reversing valve 24, the oil port BT, the oil port HT, the return oil port YT, and the return oil filter 5, and the piston rods of the two tilting cylinders 351 extend synchronously.

[0057] Among them, Figure 1 As shown, when the workpiece is in a weightless state and pulls the piston rod of the flip cylinder 351 to extend, the pressure at the oil port BA of the electro-hydraulic reversing valve 24 decreases, and the pressure entering the control oil port of the second one-way balancing valve 26 decreases accordingly, and the opening of the second one-way balancing valve 26 decreases, thereby achieving a smooth flipping action.

[0058] On the contrary, if Figure 1 As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the YVBA of the electro-hydraulic reversing valve 24 are energized, the oil port BP of the electro-hydraulic reversing valve 24 is connected to the oil port BB, and the oil port BA is connected to the oil BT. The hydraulic oil in the suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port BP of the electro-hydraulic reversing valve 24, the oil port BB, the second one-way balance valve 26, and the oil port BY into the rod chambers of the two tilting cylinders 351, and at the same time, the hydraulic oil in the oil port BB enters the control oil port of the first one-way balance valve 25 to open the first one-way balance valve 25. The hydraulic oil in the rodless chambers of the two flip cylinders 351 returns to the return oil area 1-2 of the main oil tank 1 through the oil port BW, the first one-way balancing valve 25, the oil port BA of the electro-hydraulic reversing valve 24, the oil port BT, the oil port HT, the return oil port YT, and the return oil filter 5, and the piston rods of the two flip cylinders 351 retract synchronously to realize the resetting action of the flip cylinder 351.

[0059] like Figure 1 As shown, the electromagnets YVBA and YVBB of the electro-hydraulic reversing valve 24 are both de-energized, the oil ports BA and BB of the electro-hydraulic reversing valve 24 are connected through the oil port BT, the oil port HT, the return oil port YT, the return oil filter 5 and the return oil area 1-2 of the main oil tank 1, the first one-way balancing valve 25 and the second one-way balancing valve 26 are closed, and the flip cylinder group 35 is locked in the original state.

[0060] Operation control of mold opening and closing cylinder group 36: like Figure 1As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the YVCB of the first three-position four-way electromagnetic valve 27 are energized, the oil port CP of the first three-position four-way electromagnetic valve 27 is connected to the oil port CA, and the oil port CB is connected to the oil port CT. The hydraulic oil in the suction area 1-1 of the main oil tank 1 is diverted to the oil port CD and the oil port CE through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port CP of the first three-position four-way electromagnetic valve 27, the oil port CA, the third hydraulically controlled one-way valve 28, and the oil port CC of the diverter and collector valve 30, and then enters the rodless chamber of the two opening and closing mold cylinders 361 through the oil port CW and the oil port CX respectively. At the same time, the hydraulic oil of the oil port CA enters the fourth hydraulically controlled one-way valve 29 to control the oil port to open the fourth hydraulically controlled one-way valve 29. The hydraulic oil in the rod chamber of the two mold opening and closing cylinders 361 returns to the return oil area 1-2 of the main oil tank 1 through the oil port CY, the fourth hydraulically controlled one-way valve 29, the oil port CB of the first three-position four-way solenoid valve 27, the oil port CT, the oil port HT, the return oil port YT, and the return oil filter 5, and the piston rods of the two mold opening and closing cylinders 361 are extended synchronously to realize the mold opening action.

[0061] On the contrary, if Figure 1 As shown, the electromagnet YVGA of the electromagnetic overflow valve 16 and the YVCA of the first three-position four-way electromagnetic valve 27 are energized, the oil port CP of the first three-position four-way electromagnetic valve 27 is connected to the oil port CB, and the oil port CA is connected to the oil CT. The hydraulic oil in the oil suction area 1-1 of the main oil tank 1 passes through the output oil port YX, the hydraulic pump 11, the oil port SC, the oil port SR, the oil port CP of the first three-position four-way electromagnetic valve 27, the oil port CB, the fourth hydraulically controlled one-way valve 29, and the oil port CY into the rod chambers of the two mold opening and closing cylinders 361, and at the same time, the hydraulic oil in the oil port CB enters the control oil port of the third hydraulically controlled one-way valve 28 to open the third hydraulically controlled one-way valve 28. The hydraulic oil in the rodless chamber of the two mold opening and closing cylinders 361 enters the oil port CD and the oil port CE of the diverter and collector valve 30 through the oil port CW and the oil port CX respectively, and then merges through the oil port CC of the diverter and collector valve 30, the third hydraulically controlled one-way valve 28, the oil port CA of the first three-position four-way solenoid valve 27, the oil port CT, the oil port HT, the return oil port YT, and the return oil filter 5 to return to the return oil area 1-2 of the main oil tank 1, and the piston rods of the two mold opening and closing cylinders 361 are retracted synchronously to realize the mold closing action.

[0062] like Figure 1 As shown, the electromagnets YVCA and YVCB of the first three-position four-way solenoid valve 27 are both de-energized, the oil ports CA and CB of the first three-position four-way solenoid valve 27 are connected to the oil return area 1-2 of the main oil tank 1 through the oil port CT, the oil port HT, the return oil port YT, and the return oil filter 5, the third hydraulically controlled one-way valve 28 and the fourth hydraulically controlled one-way valve 29 are closed, and the mold opening and closing cylinder group 36 is locked in the original state.

[0063] The above description shows and describes the preferred embodiments of the utility model. As mentioned above, it should be understood that the utility model is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the utility model concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the utility model, and should be within the scope of protection of the claims attached to the utility model.

Claims

1. A hydraulic system for an air-turning demoulding machine of an aerated concrete block production line, characterized by: The invention comprises an oil tank device (01), a servo oil supply device (02), a hydraulic control valve group (03) and an actuator (04); the oil tank device (01) comprises a main oil tank (1), and the oil tank device (01) is provided with an output oil port YX, an oil return port YT and an oil port YL which are connected to the main oil tank (1); The servo oil supply device (02) comprises a hydraulic pump (11), a servo motor (12), an encoder (13), a servo driver (14) and a pressure sensor (15); the input oil port of the hydraulic pump (11) is connected to the output oil port YX of the oil tank device (01); the servo motor (12) is control-connected to the hydraulic pump (11); the encoder (13) is connected to the servo motor (12) and is feedback-connected to the servo driver (14); the servo driver (14) is control-connected to the servo motor (12) and the hydraulic control valve group (03); the pressure sensor (15) is connected to the output oil port of the hydraulic pump (11) and is feedback-connected to the servo driver (14); the servo oil supply device (02) is also provided with an oil port SC; the output oil port of the hydraulic pump (11) is connected to the oil port SC; The hydraulic control valve group (03) is provided with oil ports SR, HT, AY, BW, BY, CW, CX, CY, DW, and DY, and the oil port SR is connected to the oil port SC of the servo oil supply device (02), and the oil port HT is connected to the oil return port YT of the oil tank device (01); The hydraulic control valve group (03) comprises an electro-hydraulic proportional valve (18), a back pressure valve (19), a first hydraulically controlled one-way valve (20) and a second hydraulically controlled one-way valve (21); the electro-hydraulic proportional valve (18) comprises oil ports AP, AT, AA, AB and proportional solenoids YVAA, YVAB; the back pressure valve (19) comprises oil ports AC, AD; the first hydraulically controlled one-way valve (20) comprises oil ports AE, AF, AG; the second hydraulically controlled one-way valve (21) comprises oil ports AK, AJ, AL; The oil port AP of the electro-hydraulic proportional valve (18) is connected to the oil port SR, the oil port AT is connected to the oil port HT, the oil port AA is connected to the oil port AC of the back pressure valve (19) and the oil port AJ of the second hydraulically controlled one-way valve (21), and the oil port AB is blocked; the oil port AE of the first hydraulically controlled one-way valve (20) is connected to the oil port AD of the back pressure valve (19) and the oil port AK of the second hydraulically controlled one-way valve (21), and the oil port AF is connected to the oil port AY; the oil port AG of the first hydraulically controlled one-way valve (20) is connected to the second two-position four-way solenoid valve (23), and the oil port AL of the second hydraulically controlled one-way valve (21) is connected to the first two-position four-way solenoid valve (22); The hydraulic control valve group (03) further comprises an electro-hydraulic reversing valve (24), a first one-way balancing valve (25) and a second one-way balancing valve (26); the electro-hydraulic reversing valve (24) comprises BP, BT, BA, BB and electromagnets YVBA and YVBB, and the oil port BP is connected to the oil port SR, and the oil port BT is connected to the oil port HT; the first one-way balancing valve (25) is connected in series between the oil port BA of the electro-hydraulic reversing valve (24) and the oil port BW of the hydraulic control valve group (03); the second one-way balancing valve (26) is connected in series between the oil port BB of the electro-hydraulic reversing valve (24) and the oil port BY of the hydraulic control valve group (03), and the control oil port of the first one-way balancing valve (25) is connected to the oil port BB, and the control oil port of the second one-way balancing valve (26) is connected to the oil port BA; The hydraulic control valve group (03) further comprises a first three-position four-way solenoid valve (27), a third hydraulically controlled one-way valve (28), a fourth hydraulically controlled one-way valve (29) and a flow-dividing and collecting valve (30); the first three-position four-way solenoid valve (27) comprises CP, CT, CA, CB and electromagnets YVCA and YVCB; the flow-dividing and collecting valve (30) comprises oil ports CC, CD and CE; the oil port CP of the first three-position four-way solenoid valve (27) is connected to the oil port SR, the oil port CT is connected to the oil port HT, and the oil port CD and the oil port CE of the flow-dividing and collecting valve (30) are respectively connected to the oil port CW and the oil port CX of the hydraulic control valve group (03); The third hydraulically controlled one-way valve (28) is connected in series between the oil port CA of the first three-position four-way solenoid valve (27) and the oil port CC of the flow dividing and collecting valve (30), and the fourth hydraulically controlled one-way valve (29) is connected in series between the oil port CB of the first three-position four-way solenoid valve (27) and the oil port CY of the hydraulic control valve group (03), and the control oil port of the third hydraulically controlled one-way valve (28) is connected to the oil port CB, and the control oil port of the fourth hydraulically controlled one-way valve (29) is connected to the oil port CA; The hydraulic control valve group (03) further comprises a second three-position four-way solenoid valve (31), a fifth hydraulically controlled one-way valve (32) and a sixth hydraulically controlled one-way valve (33); the second three-position four-way solenoid valve (31) comprises DP, DT, DA, DB and electromagnets YVDA and YVDB, and the oil port DP is connected to the oil port SR, and the oil port DT is connected to the oil port HT; the fifth hydraulically controlled one-way valve (32) is connected in series between the oil port DA of the second three-position four-way solenoid valve (31) and the oil port DW of the hydraulic control valve group (03); the sixth hydraulically controlled one-way valve (33) is connected in series between the oil port DB of the second three-position four-way solenoid valve (31) and the oil port DY of the hydraulic control valve group (03), and the control oil port of the fifth hydraulically controlled one-way valve (32) is connected to the oil port DB, and the control oil port of the sixth hydraulically controlled one-way valve (33) is connected to the oil port DA; The actuator (04) comprises a lifting cylinder group (34), a tilting cylinder group (35), a mold opening and closing cylinder group (36) and a grab hook cylinder group (37); the lifting cylinder group (34) comprises two parallel lifting cylinders (341); the rodless chambers of the two lifting cylinders (341) are interconnected and connected to the oil port YL of the oil tank device (01); and the rod chambers are interconnected and connected to the oil port AY of the hydraulic control valve group (03); The tilting oil cylinder group (35) comprises two parallel tilting cylinders (351), the rodless chambers of the two tilting cylinders (351) are connected to each other and to the oil port BW of the hydraulic control valve group (03), and the rod chambers are connected to each other and to the oil port BY of the hydraulic control valve group (03); The mold opening and closing cylinder group (36) comprises two parallel mold opening and closing cylinders (361), the rodless chambers of the two mold opening and closing cylinders (361) are respectively connected to the oil port CW and the oil port CX of the hydraulic control valve group (03) in a one-to-one correspondence, and the rod chambers of the two mold opening and closing cylinders (361) are connected to each other and to the oil port CY of the hydraulic control valve group (03); The grab hook cylinder group (37) comprises two parallel grab hook cylinders (371), the rodless chambers of the two grab hook cylinders (371) are interconnected and connected to the oil port DW of the hydraulic control valve group (03), and the rod chambers are interconnected and connected to the oil port DY of the hydraulic control valve group (03).

2. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 1 is characterized by: The first two-position four-way solenoid valve (22) comprises oil ports EP, ET, EA, EB and an electromagnet YVEA, wherein the oil port EP is connected to the oil port SR, the oil port ET is connected to the oil port HT, the oil port EA is blocked, and the oil port EB is connected to the oil port AL of the second hydraulically controlled one-way valve (21); the second two-position four-way solenoid valve (23) comprises oil ports FP, FT, FA, FB and an electromagnet YVFA, wherein the oil port FP is connected to the oil port SR, the oil port FT is connected to the oil port HT, the oil port FA is blocked, and the oil port FB is connected to the oil port AG of the first hydraulically controlled one-way valve (20).

3. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 1 is characterized by: The servo oil supply device (02) further comprises an electromagnetic overflow valve (16), wherein the electromagnetic overflow valve (16) is connected between the oil output port of the hydraulic pump (11) and the oil return port YT of the oil tank device (01), wherein the electromagnetic overflow valve (16) comprises an electromagnet YVGA, and when the electromagnet YVGA loses power, the servo oil supply device (02) releases pressure, and when the electromagnet YVGA is energized, the servo oil supply device (02) builds pressure.

4. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 1 is characterized by: The servo oil supply device (02) also includes a high-pressure pressure gauge (17), and the high-pressure pressure gauge (17) is connected to the oil output port of the hydraulic pump (11).

5. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 1 is characterized by: The main oil tank (1) comprises an oil suction area (1-1) and an oil return area (1-2), and the oil suction area (1-1) is connected to the oil output port YX, and the oil return area (1-2) is connected to the oil return port YT and the oil port YL; the oil tank device (01) also comprises a circulating pump (6), a circulating motor (7) and a circulating filter (9), the oil suction port of the circulating pump (6) is connected to the oil return area (1-2) of the main oil tank (1), the circulating motor (7) is connected to the circulating pump (6), the circulating filter (9) is connected to the oil outlet of the circulating pump (6) and the oil suction area (1-1) of the main oil tank (1), and a low-pressure pressure gauge (8) is bypassed between the circulating pump (6) and the circulating filter (9).

6. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 5 is characterized by: The oil suction area (1-1) of the main oil tank (1) is provided with a temperature controller (4), an air cooler (10) is provided between the circulation filter (9) and the oil suction area (1-1) of the main oil tank (1), and the temperature controller (4) and the air cooler (10) are connected in a communication control manner.

7. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 5 is characterized by: The oil suction area (1-1) of the main oil tank (1) is also connected to an air filter (3), and a liquid level gauge (2) is also provided on the side wall of the main oil tank (1).

8. The hydraulic system for the flip demoulding machine of the aerated concrete block production line according to claim 5 is characterized by: The oil tank device (01) further comprises an oil return filter (5), the oil inlet of the oil return filter (5) being connected to the oil return port YT of the oil tank device (01), and the oil outlet of the oil return filter (5) being connected to the oil return area (1-2) of the main oil tank (1).

Images