CN104588625B - There is Gravity casting machines and the action hydraulic control system of verting thereof of the action of verting - Google Patents
There is Gravity casting machines and the action hydraulic control system of verting thereof of the action of verting Download PDFInfo
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- CN104588625B CN104588625B CN201410796372.XA CN201410796372A CN104588625B CN 104588625 B CN104588625 B CN 104588625B CN 201410796372 A CN201410796372 A CN 201410796372A CN 104588625 B CN104588625 B CN 104588625B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
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Abstract
There is Gravity casting machines and the action hydraulic control system of verting thereof of the action of verting, comprise base, open die closing mechanism, upper and lower liftout attachment, frame, electric control system and fluid power system, frame is the frame structure of cuboid, and frame is arranged on base by rotating shaft; The position-arresting groove of ring-type is set in rotating shaft and gear is installed; Fluid power system includes vert cylinder and rotational lock cylinder; The cylinder that verts is the oscillating oil cylinder of pinion and-rack, and the section of rack of the cylinder that verts cogs and coordinates with rotating shaft; The piston rod end of rotational lock cylinder coordinates with the position-arresting groove in rotating shaft. Frame relatively base according to certain, can be according to the rotary speed of different process stage adjusting, the certain angle that verts is locking also, so it can solve and have in casting process that molten metal lack of fill, die venting are bad, foundry goods has the problems such as pore, improves the yield rate of foundry goods interior quality and foundry goods.
Description
Technical field
The present invention relates to the correlative technology field of metal casting machine, specifically a kind of weight that can realize the action of vertingPower casting machine and driving realize the hydraulic pressure control loop system of the action of verting.
Background technology
Gravitational casting refers to that molten metal pours into the process of metal mold cavity acquisition foundry goods under terrestrial gravitation effect. TraditionFixed Gravity casting machines comprise base, be fixedly installed on frame on base, lathe bed (containing sound mould safety locking mechanism),Open die closing mechanism, pull and push core mechanism, upper and lower liftout attachment and hydraulic system and electric control unit. The relative base of frame is for solidFixed, on it, be fixedly installed out the parts such as die closing mechanism, upper and lower liftout attachment and mould mould bases. This kind of fixed Gravity casting machinesIn casting when intricate casting, have that molten metal lack of fill, die venting are bad, foundry goods has the problems such as pore.
Summary of the invention
The invention provides a kind of can make the relative base of frame realize the to vert Gravity casting machines of action and pin whereinThe action of verting is used for driving the hydraulic control system of controlling. Due to frame relatively base vert certain angle and lockTightly, so it can solve and have in casting process that molten metal lack of fill, die venting are bad, foundry goods has the problems such as pore,Improve the yield rate of foundry goods interior quality and foundry goods.
The present invention solves the technical scheme that its technical problem takes:
There is a Gravity casting machines for the action of verting, comprise base, open die closing mechanism, upper and lower liftout attachment, frame, electricityGas control system and fluid power system, described in open die closing mechanism, upper and lower liftout attachment is fixed in described frame; Electrical controlSystem is connected with described fluid power system; Described frame is the frame structure of cuboid, and described frame is arranged on by rotating shaftOn described base; The position-arresting groove of ring-type is set in described rotating shaft and gear is installed; Described fluid power system includes inclinesTurn cylinder and rotational lock cylinder; The described cylinder that verts is the oscillating oil cylinder of pinion and-rack, described in vert cylinder section of rack with described inThe rotating shaft cooperation that cogs; The piston rod end of described rotational lock cylinder coordinates with the position-arresting groove in described rotating shaft. The described cylinder that vertsPromote both sides piston movement by hydraulic coupling, band carry-over bar moves left and right, rack drives rotating shaft rotation. Gear rack type swing oilCylinder manufacture is simple, and cost is low.
Hydraulic pump in described fluid power system is Variable plunger pump, and hydraulic medium is 46# antiwear hydraulic fluid.
Inlet port at described hydraulic pump is provided with oil absorption filter, is provided with oil return oil strain on the oil return line of hydraulic systemDevice. When oil return filter core occurs to stop up, machine cleans automatic alarm or renew cartridge more with reminding user.
Oil-out at hydraulic pump is equipped with high-pressure filter, guarantees to flow into hydraulic oil in hydraulic system pipeline more clearClean.
Water-cooled heat exchange unit is set on the oil return line of described fluid power system, after described water-cooled heat exchange unit, oil is setTemperature detecting element, described oil temperature detecting element is connected with described electric control system. When the temperature of hydraulic oil is during higher than 55 DEG C, machineDevice is by automatic alarm demonstration.
Describedly open die closing mechanism, upper and lower liftout attachment is fixed on the housing of described frame.
For the rotating part of described frame and base, drive the hydraulic control system that realizes the action of verting, comprise and vertingCylinder drives loop and rotational lock cylinder to drive loop; The described cylinder that verts drives loop and rotational lock cylinder to drive the import and export in loopEnd is connected in parallel on main hydraulic circuit;
The described cylinder that verts drives loop to comprise magnetic valve YV9, stacked unidirectional throttle valve VS9, stacked unidirectional throttle valveVS10; Described magnetic valve YV9 is the solenoid directional control valve of two stations; Described rotational lock cylinder drives the entrance end in loop to connect instituteState magnetic valve YV9, described magnetic valve YV9 connects the inlet and outlet of fuel channel of described rotational lock cylinder; Described magnetic valve YV9 with described in revolveTurn described stacked unidirectional throttle valve VS9, stacked unidirectional throttle valve are set respectively on the inlet and outlet of fuel channel between locking cylinderVS10, and be the connected mode of outlet throttling between two stacked unidirectional throttle valves and described rotational lock cylinder;
Described rotational lock cylinder drives loop to comprise the electromagnetic switch proportioning valve that is connected with proportional amplifier, and proportional amplifier connectsConnect the encoder in electric control system; Described electromagnetic switch proportioning valve is divided into three stations, and intermediate stations is sealing station; InstituteStating the cylinder that verts drives the entrance end connection in loop to make described electromagnetic switch proportioning valve; Described electromagnetic switch proportioning valve below twoSequence valve is set respectively on branch road, and vert described in being connected to the respectively entrance end of cylinder of oil circuit after two sequence valves; Described suitableOrder valve comprises pressure valve in parallel and check valve respectively, and corresponding pressure valve is contrary with the conducting direction of check valve.
The invention has the beneficial effects as follows: frame relatively base, according to certain, can be adjusted according to the different process stageThe rotary speed of joint,, there is molten metal lack of fill, mould so it can solve in vert certain angle locking in casting processTool exhaust is bad, foundry goods has the problems such as pore, improves the yield rate of foundry goods interior quality and foundry goods.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of main frame of the present invention;
Fig. 2 is the side-looking structural representation of main frame of the present invention;
Fig. 3 is the status architecture schematic diagram that mid frame of the present invention rotates relative to base;
Fig. 4 is the hydraulic scheme of rotation driving section of the present invention;
Fig. 5 is the structure chart of other action control parts in fluid power system of the present invention;
Fig. 6 is action flow chart of the present invention;
In figure: 1 base, 2 frames, 3 cylinders that vert;
VP-pressure valve,
YV-magnetic valve,
VS-choke valve,
SP-relay,
BY-Pressure gauge,
SQ-stroke=switch.
Detailed description of the invention
For ease of understanding technical scheme of the present invention, below in conjunction with accompanying drawing, wherein related technology contents is done furtherExplanation.
As shown in Figure 1 to Figure 3, a kind of Gravity casting machines with the action of verting, comprises base 1, opens die closing mechanism, upper and lowerLiftout attachment, frame 2, electric control system and fluid power system. Describedly open die closing mechanism, upper and lower liftout attachment is fixed on instituteState in frame 2. Electric control system is connected with described fluid power system. Described frame 2 is the frame structure of cuboid, described inFrame 2 is arranged on described base 1 by rotating shaft; The position-arresting groove of ring-type is set in described rotating shaft and gear is installed; DescribedFluid power system includes vert cylinder and rotational lock cylinder. The oscillating oil cylinder that the described cylinder 3 of verting is pinion and-rack, described in inclineThe section of rack that turns cylinder 3 cogs and coordinates with described rotating shaft; In the piston rod end of described rotational lock cylinder and described rotating shaftPosition-arresting groove coordinates, radially consistent to rotating shaft of piston rod. The described cylinder 3 that verts promotes both sides piston movement by hydraulic coupling,Band carry-over bar moves left and right, rack drives rotating shaft rotation. In the time that rotating shaft rotates to desired location by a certain speed, rotational lock cylinderStretch out in the position-arresting groove being inserted in rotating shaft piston rod end, position-arresting groove can for be arranged in rotating shaft along circumferential hoop around mutually lean onTwo adjacent cannelures, now can make rotational lock cylinder piston rod end form an axially extended trapezoidal notch, and this ladderThe big opening end of shape notch is outside, and this trapezoidal notch is incited somebody to action by being embedded in the annular bead forming between described two canneluresRotating shaft is fixed. Also half ring-like electromagnetism adhesive parts and cannelure can be set in rotational lock cylinder piston rod end (is stop bitGroove) coordinate, certainly, cannelure (being position-arresting groove) now can be for single, for strengthening the suction-combining force cannelure (being position-arresting groove)Electromagnetic component inside also can be set. The manufacture of gear rack type swing oil cylinder is simple, and cost is low.
Hydraulic pump in described fluid power system is the Variable plunger pump of Japanese YUKEN, and hydraulic medium is the wear-resistant liquid of 46Hydraulic fluid. Fluid pressure line (flexible pipe and hard tube), pipe joint are EMB company product. Hydraulic Station is to arrange separately, and layout is convenient, easilyIn maintenance and repair.
Inlet port at described hydraulic pump is provided with oil absorption filter, is provided with oil return oil strain on the oil return line of hydraulic systemDevice. When oil return filter core occurs to stop up, machine cleans automatic alarm or renew cartridge more with reminding user.
Oil-out at hydraulic pump is equipped with high-pressure filter, guarantees to flow into hydraulic oil in hydraulic system pipeline more clearClean.
Water-cooled heat exchange unit is set on the oil return line of described fluid power system, after described water-cooled heat exchange unit, oil is setTemperature detecting element, described oil temperature detecting element is connected with described electric control system. When the temperature of hydraulic oil is during higher than 55 DEG C, machineDevice is by automatic alarm demonstration.
Describedly open die closing mechanism, upper and lower liftout attachment is fixed on the housing of described frame.
Rotating part for described frame 2 with base 1, drives the hydraulic control system that realizes the action of verting, and comprises and incliningTurning cylinder drives loop and rotational lock cylinder to drive loop; The described cylinder that verts drives loop and rotational lock cylinder to drive the turnover in loopMouth end is connected in parallel on main hydraulic circuit. As shown in Figure 5, described in the connection being separated left by main hydraulic circuit, vert cylinder 3, rotation lockThe hydraulic circuit of tight cylinder, to the right respectively in parallel point set out plate locking cylinder, closing cylinder, dynamic die liftout cylinder, quiet mould and follow out cylinder and standbyWith the hydraulic circuit of cylinder-1 of loosing core, cylinder-2 of loosing core for subsequent use etc.
The described cylinder that verts drives loop to comprise magnetic valve YV9, stacked unidirectional throttle valve VS9, stacked unidirectional throttle valveVS10; Described magnetic valve YV9 is the solenoid directional control valve of two stations; Described rotational lock cylinder drives the entrance end in loop to connect instituteState magnetic valve YV9, described magnetic valve YV9 connects the inlet and outlet of fuel channel of described rotational lock cylinder; Described magnetic valve YV9 with described in revolveTurn described stacked unidirectional throttle valve VS9, stacked unidirectional throttle valve are set respectively on the inlet and outlet of fuel channel between locking cylinderVS10, and be the connected mode of outlet throttling between two stacked unidirectional throttle valves and described rotational lock cylinder.
Described rotational lock cylinder drives loop to comprise the electromagnetic switch proportioning valve that is connected with proportional amplifier, and proportional amplifier connectsConnect the encoder in electric control system; Described electromagnetic switch proportioning valve is divided into three stations, and intermediate stations is sealing station; InstituteStating the cylinder that verts drives the entrance end connection in loop to make described electromagnetic switch proportioning valve; Described electromagnetic switch proportioning valve below twoSequence valve is set respectively on branch road, and vert described in being connected to the respectively entrance end of cylinder of oil circuit after two sequence valves; Described suitableOrder valve comprises pressure valve VP4 in parallel, VP5 and check valve respectively, and the conducting side of corresponding pressure valve VP4, VP5 and check valveTo on the contrary.
Adopt the vert speed of verting of frame of spiral swing hydranlic pressure jar and electromagnetic switch proportional valve control, make to operate steadily without punchingHit, easy to control, make the speed of verting adjustable continuously.
Be illustrated in figure 6 motion flow of the present invention.
The setting of various parameters must be set in the situation that shutting down, and can in the time starting shooting, work the mischief not determine.
When device power, first enter the man-machine main screen of electric control system end, then according to button below every screenChinese character explanation carry out the selection of each screen. " upper page " refers to get back to page, and " nextpage " refers to get back to nextpage, and " returning " refers to back key frame,It is man-machine interface.
At system main screen picture, display device status switch position, running status, production counting etc.
Produce counting and can press at any time the zero clearing of counting reset button, total output can not zero clearing.
Setting parameter verts: under main screen, press the setting button that verts, enter the setting picture that verts, can establish at this pictureUpdip, the electromagnetic switch proportioning valve output speed that has a down dip when fixed point is moving, by press, electromagnetic switch proportioning valve is maximum to be exported Speed SettingPercent value is set, and is 100 to the maximum, and minimum is 0, and while selecting suitable speed to make to vert, speed is not too big. The end angle of vertingDegree is at this set angle scope 0-105 degree.
Updip, Speed Setting has a down dip: tilt angled down, since 0 degree, only verts termination point to maximum. Updip angle hasThe termination point that verts greatly starts to stop to erecting angle 0. The Speed Setting curve that verts can be divided into seven grades six sections, angle input numberThe integer of value 0-105 degree, speed input range 0-100. After verting and having set, can under manual mode, have a down dip,The motion test of updip, can move automatically until meet the requirements of the speed of verting.
Action arranges: in default, press action button is set, enter action picture is set, can select unmatchedMould, rear mold; Have or not patrix; Have or not counterdie; Counterdie head part ejects or counterdie is followed pushing method; Lock pin or first lock pin after first matched mouldsRear matched moulds order.
Set actuation time: in default, press set of time button, entry time arranges picture.
(1) setting counterdie is followed and is ejected delay time.
(2) set counterdie head part and eject delay time.
(3) patrix time delay ejection cycle.
(4) on, touch and eject delay time.
(5) set mould remaining time: mould remaining time is from being poured, press cooling or both hands button and start timing, the time is singleBps.
Cooling control: press cooling control button under main screen, enter cooling control interface; At this picture, cooling control is setMode processed, carries out cooling manual automated manner and selects, and selects coolingly when automatic, and auto-programming can be from the time running to cooling stepThe moving cooling program that starts. Press cooling parameter at cooling control interface and set button, enter cooling parameter and set picture, select coldBut passage has or not; To should the cooling duct time started, turn-on time; Time started starts timing time to opening from cooling startupTime while beginning cooling connection, finish cooling turn-on time to this cooling duct, until automatic cooling beginning next time. At cooling pictureCan press cooling testing button and enter the cold test pictures of going, carry out cooling test.
To machine energising, primer fluid press pump according to the following steps:
(1) open all pressure meter switches, now each Pressure gauge index should be " 0 ";
(2) unclamp the regulating handle of pressure valve VP1, VP3;
(3) within 1 second, carry out the operation of " primer fluid press pump " and " hydraulic pump stops ", check the rotation of hydraulic pump simultaneouslyWhether direction meets the direction of arrow that hydraulic pump is demarcated, and should change electrical wiring if be not inconsistent, and then examination. Determine that hydraulic pump turnsAfter moving direction is errorless, primer fluid press pump makes its continuous operation, and (used time not is for a long time applied hand before energising to prepare set pressureRotary electric machine blade drives hydraulic pump to turn round to lubricate pin, and anti-skidding is bad draws bad high pressure pin);
The setting of hydraulic system pressure, as shown in Figure 4, Figure 5:
(1) the handle of the own pressure valve VP1 of regulator solution press pump first, what needn't revolve is too tight, next can be slowly tight. BySwitch in system, now magnetic valve YV1 obtains electricly, slowly screws the handle of pressure valve VP3, and Pressure gauge BY1 is pointed to10MPa; If the pressure of VP3 is lower than VP1, two knobs can cooperatively interact, and make VP3 a little more than VP1, until pressPower table shows 10Mpa, then VP1 is unclamped and is slowly screwed, and observes the situation of change of BY1, makes it to be stabilized in 10MpaUpper, now high-pressure mixes up, the locking nut of locking VP1, cover upper cover.
(2) pressure is placed in locations of high pressure, continues to regulate the handle of pressure valve VP1 and VP3, makes Pressure gauge BY1 point to 13MPa; Regulate again the handle of pressure valve VP1, make Pressure gauge BY1 point to 13MPa always; VP3 is slowly unscrewed again, observeThe situation of change of BY1, should be along with the unclamping of VP3, and the value of BY1 is declining, more slowly to screw VP3 be 13Mpa to pressureAnd make it stable, and locking VP3, now safe oil pressure relief is 13Mpa; The come up knob of VP1, makes the index of BY1 beWhen 10MPa, by the handle locking of VP1, system high pressure pressure regulates complete, and the oil pressure relief of safety overflow valve is also set up simultaneously.
The adjustment of folding type speed:
This control valve group is positioned on the entablature of machine lathe bed. VS1 adjusts open form speed, and VS2 adjusts mould assembly speed. By machineDevice running status is placed in manually (or crawl) position, carries out respectively the mould assembling action of opening of this closing cylinder, moves back and forth in folding typeIn process, observe the speed of service of closing cylinder each time, adjust respectively VS1, VS2, be screwed into (anti-silk), Speed Reduction, back-outsSpeed raises, until reach ideal value.
Eject up and down the adjustment of speed:
This control valve group is positioned on the entablature of machine lathe bed equally. The advance and retreat speed of liftout tank in VS3, VS4 adjustment,VS5, VS6 adjust the advance and retreat speed of lower liftout tank. State of runtime machine is placed in to manual position, carries out respectively two liftout tanksEject and the top work that reverses, in reciprocating motion process, observe the speed of service of each cylinder, adjust respectively VS3, VS4, VS5, VS6,Be screwed into (positive silk), Speed Reduction, the speed of back-outing raises, until reach ideal value.
The adjustment of dynamic model locking cylinder speed
VS7, VS8 are turnover speed for adjusting this oil cylinder, as a same reason, are screwed into (positive silk), and Speed Reduction, twistsGo out speed and raise, until reach ideal value.
The adjustment that pulls and pushes core 1 and 2 for subsequent use
This control valve group is positioned at the top of machine lathe bed crossbeam, and VS11, VS12, VS13, VS14 are used for adjusting and pull and push core(this machine only stays valve group interface for pulling and pushing core to speed, pulls and pushes core mechanism, oil cylinder, signalling component user need to be at mould according to partUpper configuration). After loading onto oil cylinder, Principles of Regulation are the same.
The adjusting of upset locking cylinder speed
This group valve is positioned at the rear side of base support leg, and VS9 and VS10 adjust the turnover speed of this locking cylinder, as a same reason, twistsEnter (positive silk), Speed Reduction, the speed of back-outing raises, until reach ideal value.
The setting of the speed of verting
Updip and the speed having a down dip be by shown in electromagnetic switch proportioning valve and rotary encoder jointly control, it is logicalCross and input the different signals of telecommunication and be input to proportional amplifier BYV1 and BYV2, and determined the variation position of various speed by encoderPut, input different control variables in different angles, thereby reach the different speed of verting, realize the speed change of verting and fill type.The two groups of sequence valves that superpose under electromagnetic switch proportioning valve, it is used for controlling the oil cylinder back pressure of verting, to ensure that the process of verting existsStationarity while exceeding center of gravity. Twist as back pressure is large, in the time producing, under the prerequisite that ensures to operate steadily, back pressure is the smaller the better, thisSample driving pressure can reduce.
The above is only the preferred embodiment of the present invention, it should be pointed out that the ordinary skill people for the artMember, not departing under the prerequisite of the technology of the present invention principle, can also make some improvement and modification, these improvement and modificationAlso should be considered as protection scope of the present invention.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (7)
1. there is a Gravity casting machines for the action of verting, comprise base, open die closing mechanism, upper and lower liftout attachment, frame, electricControl system and fluid power system, described in open die closing mechanism, upper and lower liftout attachment is fixed in described frame; Electrical control systemSystem is connected with described fluid power system, it is characterized in that: described frame is the frame structure of cuboid, and described frame is by rotating shaftBe arranged on described base; The position-arresting groove of ring-type is set in described rotating shaft and gear is installed; Described fluid power system bagVert cylinder and rotational lock cylinder are drawn together; The described cylinder that verts is the oscillating oil cylinder of pinion and-rack, described in the vert section of rack of cylinderCog and coordinate with described rotating shaft; The piston rod end of described rotational lock cylinder coordinates with the position-arresting groove in described rotating shaft.
2. the Gravity casting machines with the action of verting according to claim 1, is characterized in that: in described fluid power systemHydraulic pump be Variable plunger pump, hydraulic medium is 46# antiwear hydraulic fluid.
3. the Gravity casting machines with the action of verting according to claim 2, is characterized in that: in the oil suction of described hydraulic pumpMouth is provided with oil absorption filter, on the oil return line of hydraulic system, is provided with return oil filter.
4. the Gravity casting machines with the action of verting according to claim 3, is characterized in that: at the oil-out dress of hydraulic pumpThere is high-pressure filter.
5. the Gravity casting machines with the action of verting according to claim 1 and 2, is characterized in that: in described hydraulic-drivenWater-cooled heat exchange unit is set on the oil return line of system, after described water-cooled heat exchange unit, oil temperature detecting element is set, described oil temperature inspectionSurveying element is connected with described electric control system.
According to claim 1 and 2 have vert action Gravity casting machines, it is characterized in that: described in open die closing mechanism,Upper and lower liftout attachment is fixed on the housing of described frame.
For having described in claim 1 to 6 vert action a Gravity casting machines, drive its realization vert actionHydraulic control system, is characterized in that:
Comprise that the cylinder that verts drives loop and rotational lock cylinder to drive loop; The described cylinder that verts drives loop and rotational lock cylinder to driveThe entrance end in loop is connected in parallel on main hydraulic circuit;
The described cylinder that verts drives loop to comprise magnetic valve YV9, stacked unidirectional throttle valve VS9, stacked unidirectional throttle valve VS10;Described magnetic valve YV9 is the solenoid directional control valve of two stations; Described rotational lock cylinder drives the entrance end in loop to connect described electricityMagnet valve YV9, described magnetic valve YV9 connects the inlet and outlet of fuel channel of described rotational lock cylinder; In described magnetic valve YV9 and described rotation lockOn inlet and outlet of fuel channel between tight cylinder, described stacked unidirectional throttle valve VS9, stacked unidirectional throttle valve VS10 are set respectively, andBetween two stacked unidirectional throttle valves and described rotational lock cylinder, it is the connected mode of outlet throttling;
Described rotational lock cylinder drives loop to comprise the electromagnetic switch proportioning valve that is connected with proportional amplifier, and proportional amplifier connects electricityEncoder in gas control system; Described electromagnetic switch proportioning valve is divided into three stations, and intermediate stations is sealing station; Describedly inclineTurning cylinder drives the entrance end connection in loop to make described electromagnetic switch proportioning valve; Described electromagnetic switch proportioning valve two branch roads belowUpper sequence valve is set respectively, and vert described in being connected to the respectively entrance end of cylinder of oil circuit after two sequence valves; Described sequence valveComprise respectively pressure valve in parallel and check valve, and corresponding pressure valve is contrary with the conducting direction of check valve.
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| CN107160155A (en) * | 2017-07-27 | 2017-09-15 | 铜陵科达车辆装备有限责任公司 | Portable microcomputer controls rolling bearing pressing machine |
| CN109058751B (en) * | 2018-10-12 | 2023-12-22 | 大唐灵宝风力发电有限责任公司 | Lubricating oil fine filtering box and filtering system for wind generating set |
| CN109570479A (en) * | 2018-12-24 | 2019-04-05 | 常州卡斯特铝精密铸造科技有限公司 | Oil sump casting machine |
| CN113404735A (en) * | 2021-06-22 | 2021-09-17 | 中煤科工集团重庆研究院有限公司 | Load-sensitive hydraulic system for adjusting inclination angle of drilling machine and working method of load-sensitive hydraulic system |
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| JP3716922B2 (en) * | 2002-01-10 | 2005-11-16 | 新東工業株式会社 | Gravity tilting die casting machine |
| ITPD20030115A1 (en) * | 2003-05-27 | 2004-11-28 | Imr Spa | GRAVITY CASTING PLANT WITH FORMING SHELL |
| US7036553B1 (en) * | 2004-11-23 | 2006-05-02 | Jih-Lee Yu | Die-casting device |
| CN201267870Y (en) * | 2008-09-24 | 2009-07-08 | 上海大学 | Tilting type metal mold casting device |
| DE102010022343B4 (en) * | 2010-06-01 | 2017-10-26 | Volkswagen Ag | Method for tilt casting of components and tilt casting device |
| CN202984646U (en) * | 2012-12-09 | 2013-06-12 | 浙江万丰科技开发有限公司 | Novel inclined type gravity casting machine |
| CN104028736B (en) * | 2014-05-12 | 2016-06-15 | 新昌县东科精密机械有限公司 | Tilting type automatic casting machine |
| CN204353466U (en) * | 2014-12-18 | 2015-05-27 | 济南圣元机械工程有限公司 | There is the Gravity casting machines of action of verting and action hydraulic control system of verting thereof |
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