CN104948512A - Efficient pressure buildup device for die casting machine - Google Patents
Efficient pressure buildup device for die casting machine Download PDFInfo
- Publication number
- CN104948512A CN104948512A CN201510398392.6A CN201510398392A CN104948512A CN 104948512 A CN104948512 A CN 104948512A CN 201510398392 A CN201510398392 A CN 201510398392A CN 104948512 A CN104948512 A CN 104948512A
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- Prior art keywords
- valve
- control valve
- solenoid directional
- directional control
- pressure
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- 238000004512 die casting Methods 0.000 title claims abstract description 24
- 238000002347 injection Methods 0.000 claims abstract description 50
- 239000007924 injection Substances 0.000 claims abstract description 50
- 230000009471 action Effects 0.000 claims abstract description 18
- 230000009467 reduction Effects 0.000 claims description 18
- 238000004146 energy storage Methods 0.000 claims description 8
- 230000004907 flux Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 51
- 239000012530 fluid Substances 0.000 description 20
- 239000002828 fuel tank Substances 0.000 description 18
- 239000000446 fuel Substances 0.000 description 15
- 239000010720 hydraulic oil Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
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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
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B3/00—Intensifiers or fluid-pressure converters, e.g. pressure exchangers; Conveying pressure from one fluid system to another, without contact between the fluids
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
An efficient pressure buildup device for a die casting machine comprises a boost oil cylinder and an injection oil cylinder, and is characterized in that an oil way comprises a fourth cartridge valve and a fourth electromagnetic directional valve which are mutually connected in series, a first cartridge valve and a first electromagnetic directional valve which are mutually connected in series, a third cartridge valve and a third electromagnetic directional valve which are mutually connected in series, a sixth cartridge valve and a sixth electromagnetic directional valve which are mutually connected in series, a fifth cartridge valve and a throttling screw which are mutually connected, a first energy accumulator, a first pressure reducing valve and a first one-way valve which are mutually connected in series, an overflow valve and a fifth electromagnetic directional valve which are mutually connected, as well as a second energy accumulator, a second pressure reducing valve and a second one-way valve which are mutually connected in series. According to the structure, power is gained while electromagnets are boosted during rapidly acting, signal receiving and action command transmitting time of a PLC (programmable logic controller) is saved, and only two processes including opening of cartridge valve cores and pushing-out of the boost oil cylinder are reserved, so that the pressure buildup time is shortened. The efficient pressure buildup device for the die casting machine has the characteristics of simple and reasonable structure, short pressure buildup time and low cost.
Description
Technical field
The present invention relates to one and build pressure device, particularly one is used for building pressure device efficiently in die casting machine.
Background technique
Build the important performance characteristic that the pressure time is die casting machine injection system, it is shorter that the time pressing through journey built by die casting machine, then think that die casting machine injection system performance is more advanced.In extrusion process, the pressure time of building used is shorter, more favourable to raising casting quality, it is the important evidence evaluating die casting machine injection system performance technologies level that die casting machine the shortest builds the pressure time, and what current die casting machine manufacturer can reach the shortlyest builds the pressure time at about 30ms ~ 100ms.
The sequence of movement that shoots material is generally:---second segment is---supercharging fast---at a slow speed at a slow speed for first paragraph, be connected with there being action between pressurizing action due to quick, namely quick end signal pass to PLC-PLC reaction to allow fuel tap electromagnet obtain electric-electromagnet promotes fuel tap spool-cartridge valve spool unlatchings-pressurizing cylinder release, in such process, because each step needs certain hour, cause the time turning supercharging fast partially long, thus have influence on and build the pressure time.
More short better for building pressure time General Requirements, and 30ms ~ 100ms that prior art reaches builds the pressure time, still can not meet modern production needs, still has room for promotion, therefore, for improving the performance of die casting machine, is necessary to make further improvements.
Summary of the invention
Object of the present invention aim to provide a kind of simple and reasonable, build the efficient die casting machine that the pressure time is short, cost is low and build pressure device, it is built the pressure time and reaches 12ms, substantially increases the performance of die casting machine injection part, to overcome deficiency of the prior art.
Pressure device built by the efficient die casting machine of the one designed by this object, comprise pressurizing cylinder and injection oil cylinder, it is characterized in that, oil circuit also comprises the 4th cartridge valve and the 4th solenoid directional control valve of series connection mutually, first cartridge valve of mutual series connection and the first solenoid directional control valve, 3rd cartridge valve of mutual series connection and the 3rd solenoid directional control valve, 6th cartridge valve of mutual series connection and the 6th solenoid directional control valve, interconnective 5th cartridge valve and throttling screw, first accumulator of mutual series connection, first reduction valve and the first one-way valve, interconnective relief valve and the 5th solenoid directional control valve, second accumulator of mutual series connection, second reduction valve and the second one-way valve, and the 7th solenoid directional control valve of mutually series connection and second control valve.
Also comprise the second cartridge valve, the 3rd one-way valve, the first stop valve, the second stop valve and first flow control valve; Second cartridge valve one end connects pressurizing cylinder, and the other end connects the second solenoid directional control valve; 3rd one-way valve one end connected system pressure oil, the other end connects the first accumulator in parallel each other and the second accumulator; First stop valve one end connects the first reduction valve, and the other end connects two-speed energy storage pressure gauge; Second stop valve one end connects the second reduction valve, and the other end connects supercharging energy storage pressure gauge; First flow control valve one end connects pressurizing cylinder, and the other end connects the 5th solenoid directional control valve.
Relief valve one end connects the P hole of the 5th solenoid directional control valve by first flow control valve; 5th solenoid directional control valve main valve events carrys out trigger action by relief valve set pressure, is set up the speed controlling to trigger supercharging by first flow control valve.
The first paragraph of injection oil cylinder and second segment travel forward at a slow speed by system proportional pressure flow hybrid control speed and pressure; The high speed of injection oil cylinder travels forward by the 4th cartridge valve adjust flux, by the first reduction valve set pressure; The pressurizing action of injection oil cylinder by the 6th cartridge valve adjust flux, by the second reduction valve set pressure.
In the high speed forward movement of injection oil cylinder, make the 5th electromagnetic switch valve coil obtain electric, trigger when its pressurizing action reaches setting value by oil cylinder working-pressure.
In pressurizing cylinder, rod chamber takes back oil pipe and communicates with air, reduces the generation that supercharging triggers moment resistance.
The present invention when quick acting supercharging electromagnet simultaneously electric, eliminate PLC Received signal strength and make time of action command, only have cartridge valve spool to open and pressurizing cylinder releases this two processes, reach the object that the pressure time is built in shortening.Injection oil cylinder when rapid movement because load gentlier causes pressure very low, when subsequent power follow-up is not enough, because inertial force effect injection oil cylinder pressure even there will be negative pressure of vacuum, injection oil cylinder rapid stroke terminates, namely when molten metal is filled with in die cavity, injection oil cylinder pressure can rise rapidly, use this physical property, promote to increase by one group of pressure flow hybrid control between cartridge valve valve core movement at directional control valve, when injection oil cylinder pressure is less, control oil and cannot open pressure controlled valve, supercharging directional control valve main valve is failure to actuate, when rapid stroke terminates, pressure increase, control oil and open pressure controlled valve promotion supercharging directional control valve main valve, trigger pressurizing action, thus achieve the object shortening and build the pressure time.It has simple and reasonable, build the feature that the pressure time is short, cost is low.
Accompanying drawing explanation
Fig. 1, Fig. 2 are respectively the perspective view of one embodiment of the invention different direction.
Fig. 3 is one embodiment of the invention oil circuit figure.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
See Fig. 1-Fig. 3, pressure device built by this efficient die casting machine, comprise pressurizing cylinder and injection oil cylinder, also comprise the 4th cartridge valve V43 and the 4th solenoid directional control valve S43 that oil circuit also comprise series connection mutually, first cartridge valve V40 of mutual series connection and the first solenoid directional control valve S40, 3rd cartridge valve V42 of mutual series connection and the 3rd solenoid directional control valve S42, 6th cartridge valve V45 of mutual series connection and the 6th solenoid directional control valve S45, interconnective 5th cartridge valve V44 and throttling screw V61, first accumulator A40 of mutual series connection, first reduction valve V51 and the first one-way valve V53, interconnective relief valve V47 and the 5th solenoid directional control valve S44, second accumulator A41 of mutual series connection, second reduction valve V52 and the second one-way valve V54, and the 7th solenoid directional control valve S46 of series connection mutually and second control valve V59.
In addition, this efficiently a die casting machine build pressure device and comprise again the second cartridge valve V41, the 3rd one-way valve V60, the first stop valve V49, the second stop valve V50 and first flow control valve V48; Second cartridge valve V41 one end connects injection oil cylinder, and the other end connects the second solenoid directional control valve S41; 3rd one-way valve V60 one end connected system pressure oil p, the other end connects the first accumulator A40 in parallel each other and the second accumulator A41; First stop valve V49 one end connects the first reduction valve V51, and the other end connects two-speed energy storage pressure gauge G41; Second stop valve V50 one end connects the second reduction valve V52, and the other end connects supercharging energy storage pressure gauge G42; First flow control valve V48 one end connects injection oil cylinder, and the other end connects the 5th solenoid directional control valve S44.
Relief valve V47 one end connects the P hole of the 5th solenoid directional control valve S44 by first flow control valve V48; 5th solenoid directional control valve S44 main valve events carrys out trigger action by relief valve V47 set pressure, is set up the speed controlling to trigger supercharging by first flow control valve V48.
The first paragraph of injection oil cylinder and second segment travel forward at a slow speed by system proportional pressure flow hybrid control speed and pressure; The high speed of injection oil cylinder travels forward by the 4th cartridge valve V43 adjust flux, by the first reduction valve V51 set pressure; The pressurizing action of injection oil cylinder by the 6th cartridge valve V45 adjust flux, by the second reduction valve V52 set pressure.
In the high speed forward movement of injection oil cylinder, make the 5th solenoid directional control valve S44 coil obtain electric, trigger when its pressurizing action reaches setting value by oil cylinder working-pressure.
In pressurizing cylinder, rod chamber takes back oil pipe and communicates with air, reduces the generation that supercharging triggers moment resistance.
This efficient die casting machine is built on pressure device and is also equipped with boost pressure ga(u)ge G40, two-speed energy storage pressure gauge G41, supercharging energy storage pressure gauge G42, two-speed nitrogen pressure table G43 and pressurized nitrogen atmospheric pressure table G44, and pressure switch PO2, velocity modulation joint switch P O3, two-speed by-pass cock PO4 and a boost pressure regulation switch P O5, by above pressure gauge and control switch, observe the situation of building each pressure in pressure device in mode intuitively, realize instant monitoring.
Specific operation are as follows:
1. injection oil cylinder first paragraph travels forward at a slow speed: the 3rd solenoid directional control valve S42 and the first solenoid directional control valve S40 obtains electric, 3rd solenoid directional control valve S42 fuel tap coil right position work, first accumulator A40 inner fluid leads to B hole enters injection oil cylinder again piston cavity through throttling screw V61 through the P hole of the 3rd solenoid directional control valve S42, 3rd cartridge valve V42 control fluid leads to T hole through the A hole of the 3rd solenoid directional control valve S42 and is back to fuel tank, 3rd cartridge valve V42 opens, system pressure oil p arrives the piston cavity of injection oil cylinder again through the 3rd cartridge valve V42 by the 3rd one-way valve V60, injection oil cylinder is travelled forward, speed is controlled by system proportional pressure flow valve, the fuel tap coil right position work of the first solenoid directional control valve S40, the first cartridge valve V40 control fluid leads to T hole through the A hole of the first solenoid directional control valve S40 and is back to fuel tank, and the first cartridge valve V40 opens, and the hydraulic oil in piston cavity is back to fuel tank through the first cartridge valve V40.
2. injection oil cylinder second segment travels forward at a slow speed: the 6th solenoid directional control valve S45 and the first solenoid directional control valve S40 obtains electric, the fuel tap coil right position work of the 6th solenoid directional control valve S45,6th cartridge valve V45 control fluid leads to T hole through the A hole of the 6th solenoid directional control valve S45 and is back to fuel tank, 6th cartridge valve V45 opens, fluid in first accumulator A40 is through the piston cavity of the 6th cartridge valve V45 to injection oil cylinder, injection oil cylinder is travelled forward at a high speed, and speed is by the adjustable lever regulable control of the 6th cartridge valve V45; The fuel tap coil right position work of the first solenoid directional control valve S40, the first cartridge valve V40 control fluid leads to T hole through the A hole of the first solenoid directional control valve S40 and is back to fuel tank, and the first cartridge valve V40 opens, and the hydraulic oil in piston cavity is back to fuel tank through the first cartridge valve V40.
3. injection oil cylinder travels forward at a high speed: the 4th solenoid directional control valve S43, the 5th solenoid directional control valve S44 and the first solenoid directional control valve S40 obtain electric, the fuel tap coil right position work of the 4th solenoid directional control valve S43,4th cartridge valve V43 control fluid leads to T hole through the A hole of the 4th solenoid directional control valve S43 and is back to fuel tank, 4th cartridge valve V43 opens, fluid in first accumulator A40 is through the piston cavity of the 4th cartridge valve V43 to injection oil cylinder, injection oil cylinder is travelled forward at a high speed, and speed is by the adjustable lever regulable control of the 4th cartridge valve V43; The fuel tap coil right position work of the 5th solenoid directional control valve S44, pressure due to injection oil cylinder piston cavity does not reach the pressure that relief valve V47 sets up, so do not have pressure to promote the 5th solenoid directional control valve S44 main valve plug work, the 5th solenoid directional control valve S44 main valve is in treats pressure activated state; The fuel tap coil right position work of the first solenoid directional control valve S40, the first cartridge valve V40 control fluid leads to T hole through the A hole of the first solenoid directional control valve S40 and is back to fuel tank, and the first cartridge valve V40 opens, and the hydraulic oil in piston cavity is back to fuel tank through the first cartridge valve V40.
4. pressurizing action: the 4th solenoid directional control valve S43, the 5th solenoid directional control valve S44 and the first solenoid directional control valve S40 obtain electric, the fuel tap coil right position work of the 4th solenoid directional control valve S43,4th cartridge valve V43 control fluid leads to T hole through the A hole of the 4th solenoid directional control valve S43 and is back to fuel tank, 4th cartridge valve V43 opens, and the fluid of the first accumulator A40 arrives the piston cavity of injection oil cylinder through the 4th cartridge valve V43, the fuel tap coil right position work of the 5th solenoid directional control valve S44, when the pressure of injection oil cylinder piston cavity reaches the pressure that relief valve V47 sets up, fluid in injection oil cylinder piston cavity enters relief valve V47 and first flow control valve V48, wherein, the setting of relief valve V47 controls to trigger boost pressure, the setting of first flow control valve V48 controls the flow triggering supercharging, the main valve plug that B hole promotes the 5th solenoid directional control valve S44 is led to again through the P hole of the 5th solenoid directional control valve S44, make the right position work of the main valve plug of the 5th solenoid directional control valve S44, 5th cartridge valve V44 control fluid leads to T hole through the A hole of the 5th solenoid directional control valve S44 and is back to fuel tank, 5th cartridge valve V44 opens, fluid in second accumulator A41 arrives the piston cavity of pressurizing cylinder through the 5th cartridge valve V44, thus triggering pressurizing action, the fuel tap coil right position work of the first solenoid directional control valve S40, the first cartridge valve V40 control fluid leads to T hole through the A hole of the first solenoid directional control valve S40 and is back to fuel tank, and the first cartridge valve V40 opens, and the hydraulic oil in piston cavity is back to fuel tank through the first cartridge valve V40, the supercharging retention time is set up by formula or the time relay.
5. with hammer action: the fuel tap coil left position work of the 7th solenoid directional control valve S46, fluid in first accumulator A40 leads to B hole enters injection oil cylinder again piston cavity through flow control valve V59 (regulating with hammer speed) through the P hole of the 7th solenoid directional control valve S46, injection oil cylinder is travelled forward and releases material handle, its speed is controlled by flow control valve V59; The fuel tap coil right position work of the first solenoid directional control valve S40, the first cartridge valve V40 control fluid leads to T hole through the A hole of the first solenoid directional control valve S40 and is back to fuel tank, and the first cartridge valve V40 opens, and the hydraulic oil in piston cavity is back to fuel tank through the first cartridge valve V40.
6. pressurizing cylinder and injection oil cylinder rollback: the second solenoid directional control valve S41 obtains electric, the fuel tap coil right position work of the second solenoid directional control valve S41, second cartridge valve V41 and the 5th cartridge valve V44 co-controlling fluid lead to T hole through the A hole of the second solenoid directional control valve S41 and are back to fuel tank, second cartridge valve V41 and the 5th cartridge valve V44 opens, system pressure oil p arrives the piston cavity of injection oil cylinder through the 5th cartridge valve V44, fluid in injection oil cylinder piston cavity is back to fuel tank through the second cartridge valve V41, injection oil cylinder is moved backward, speed is controlled by system proportional pressure flow valve, fluid in first accumulator A40 leads to through the P hole of the second solenoid directional control valve S41 the control chamber that B hole enters Pilot operated check valve V46, Pilot operated check valve V46 opens, pressurizing cylinder is back to fuel tank through Pilot operated check valve V46, the piston rod of pressurizing cylinder is pushed back by the piston of injection oil cylinder, complete one-period action.
Above-mentioned is preferred version of the present invention, and those of ordinary skill in the art, to its simple modification or transformation, all drop within protection scope of the present invention.
Claims (6)
1. pressure device built by an efficient die casting machine, comprise pressurizing cylinder and injection oil cylinder, it is characterized in that, oil circuit also comprises the 4th cartridge valve (V43) and the 4th solenoid directional control valve (S43) of series connection mutually, first cartridge valve (V40) of mutual series connection and the first solenoid directional control valve (S40), 3rd cartridge valve (V42) of mutual series connection and the 3rd solenoid directional control valve (S42), 6th cartridge valve (V45) of mutual series connection and the 6th solenoid directional control valve (S45), interconnective 5th cartridge valve (V44) and throttling screw (V61), first accumulator (A40) of mutual series connection, first reduction valve (V51) and the first one-way valve (V53), interconnective relief valve (V47) and the 5th solenoid directional control valve (S44), second accumulator (A41) of mutual series connection, second reduction valve (V52) and the second one-way valve (V54), and the 7th solenoid directional control valve (S46) of mutually series connection and second control valve (V59).
2. pressure device built by die casting machine efficiently according to claim 1, characterized by further comprising the second cartridge valve (V41), the 3rd one-way valve (V60), the first stop valve (V49), the second stop valve (V50) and first flow control valve (V48); Second cartridge valve (V41) one end connects injection oil cylinder, and the other end connects the second solenoid directional control valve (S41); 3rd one-way valve (V60) one end connected system pressure oil (p), the other end connects the first accumulator (A40) in parallel each other and the second accumulator (A41); First stop valve (V49) one end connects the first reduction valve (V51), and the other end connects two-speed energy storage pressure gauge (G41); Second stop valve (V50) one end connects the second reduction valve (V52), and the other end connects supercharging energy storage pressure gauge (G42); First flow control valve (V48) one end connects injection oil cylinder, and the other end connects the 5th solenoid directional control valve (S44).
3. pressure device built by die casting machine efficiently according to claim 2, it is characterized in that relief valve (V47) one end connects the P hole of the 5th solenoid directional control valve (S44) by first flow control valve (V48); 5th solenoid directional control valve (S44) main valve events carrys out trigger action by relief valve (V47) set pressure, is set up the speed controlling to trigger supercharging by first flow control valve (V48).
4. pressure device built by die casting machine efficiently according to claim 3, it is characterized in that the first paragraph of injection oil cylinder and second segment travel forward at a slow speed by system proportional pressure flow hybrid control speed and pressure; The high speed of injection oil cylinder travels forward by the 4th cartridge valve (V43) adjust flux, by the first reduction valve (V51) set pressure; The pressurizing action of injection oil cylinder by the 6th cartridge valve (V45) adjust flux, by the second reduction valve (V52) set pressure.
5. pressure device built by die casting machine efficiently according to claim 4, it is characterized in that in the high speed forward movement of injection oil cylinder, makes the 5th solenoid directional control valve (S44) coil obtain electric, trigger when its pressurizing action reaches setting value by oil cylinder working-pressure.
6. according to any one of claim 1-5, pressure device built by efficient die casting machine, to it is characterized in that in pressurizing cylinder that rod chamber takes back oil pipe and communicates with air, reduces the generation that supercharging triggers moment resistance.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510398392.6A CN104948512B (en) | 2015-07-07 | 2015-07-07 | Pressure buildup device for die casting machine |
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| CN201510398392.6A CN104948512B (en) | 2015-07-07 | 2015-07-07 | Pressure buildup device for die casting machine |
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| CN104948512A true CN104948512A (en) | 2015-09-30 |
| CN104948512B CN104948512B (en) | 2017-05-24 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422518B (en) * | 2015-12-16 | 2017-08-04 | 佛山联升压铸科技有限公司 | Die casting machine fast shot loop hydraulic system |
| CN107363239A (en) * | 2017-09-05 | 2017-11-21 | 广东顺德固德威精密机械有限公司 | A kind of fast shot disabling mechanism of magnesium alloy cold-chamber die casting machine |
| CN107520420A (en) * | 2017-09-06 | 2017-12-29 | 佛山市盈向精密机械科技有限公司 | A kind of injection punch head device on die casting machine |
| CN107906069A (en) * | 2017-12-12 | 2018-04-13 | 南京钢铁股份有限公司 | Circumference combines high-quality special steel new small billet withdrawal straightening machine hydraulic valve platform and control method |
| CN110918937A (en) * | 2019-11-07 | 2020-03-27 | 宁波力劲科技有限公司 | Hydraulic control system for injection speed of die casting machine and control method thereof |
| CN111442001A (en) * | 2020-03-20 | 2020-07-24 | 宁波海天金属成型设备有限公司 | Oil circuit structure for double closed-loop control of injection speed and injection force and control mode |
| CN117920980A (en) * | 2024-03-21 | 2024-04-26 | 中国机械总院集团云南分院有限公司 | Synchronous jacking device of non-ferrous metal ingot casting automatic demolding oil cylinder |
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Effective date of registration: 20210804 Address after: No.6, Wusha section, Shunfan Road, Wusha community, Daliang Street office, Shunde District, Foshan City, Guangdong Province Patentee after: LANSON PRECISION MACHINERY Co.,Ltd. Address before: 528300 No. 1, No. 6, Wusha section of Shunfan highway, Wusha community neighborhood committee, Daliang sub district office, Shunde District, Foshan City, Guangdong Province Patentee before: FOSHAN LIANSHENG DIE CASTING TECHNOLOGY Co.,Ltd. |
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Address after: No.6, Wusha section, Shunfan Road, Wusha community, Daliang Street office, Shunde District, Foshan City, Guangdong Province Patentee after: Guangdong Liansheng Precision Intelligent Equipment Technology Co.,Ltd. Address before: No.6, Wusha section, Shunfan Road, Wusha community, Daliang Street office, Shunde District, Foshan City, Guangdong Province Patentee before: LANSON PRECISION MACHINERY CO.,LTD. |