CN106968995B - The die casting machine injection system started steadily - Google Patents

The die casting machine injection system started steadily Download PDF

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Publication number
CN106968995B
CN106968995B CN201710280309.4A CN201710280309A CN106968995B CN 106968995 B CN106968995 B CN 106968995B CN 201710280309 A CN201710280309 A CN 201710280309A CN 106968995 B CN106968995 B CN 106968995B
Authority
CN
China
Prior art keywords
oil
injection
oil cylinder
extrusion
cylinder
Prior art date
Application number
CN201710280309.4A
Other languages
Chinese (zh)
Other versions
CN106968995A (en
Inventor
孔跃明
Original Assignee
苏州三基铸造装备股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州三基铸造装备股份有限公司 filed Critical 苏州三基铸造装备股份有限公司
Priority to CN201710280309.4A priority Critical patent/CN106968995B/en
Publication of CN106968995A publication Critical patent/CN106968995A/en
Application granted granted Critical
Publication of CN106968995B publication Critical patent/CN106968995B/en

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/16Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
    • F15B11/20Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members
    • F15B11/205Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors controlling several interacting or sequentially-operating members the position of the actuator controlling the fluid flow to the subsequent actuator
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20Accessories: Details
    • B22D17/2015Means for forcing the molten metal into the die
    • B22D17/2023Nozzles or shot sleeves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/85Control during special operating conditions
    • F15B2211/851Control during special operating conditions during starting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00Circuits for servomotor systems
    • F15B2211/80Other types of control related to particular problems or conditions
    • F15B2211/86Control during or prevention of abnormal conditions

Abstract

The present invention relates to the die casting machine injection system started steadily,The sidepiece of the rod chamber oil-out of injection oil cylinder is provided with the piston rod pilot hole intersected with oil-out,The piston rod of extrusion oil cylinder may pass through piston rod pilot hole and stretch in the rod chamber oil-out of injection oil cylinder,Pressure oil in-line is connected with the rodless cavity oil inlet of injection oil cylinder and the pressure oil oil inlet of extrusion oil cylinder control valve respectively,The rodless cavity oil inlet of the actuator port connection extrusion oil cylinder of extrusion oil cylinder control valve,The rod chamber oil-out of another actuator port connection extrusion oil cylinder,Oil-out connects oil return box,The rod chamber oil-out of injection oil cylinder is connected with two injection oil return branch roads in parallel,The oil inlet connection oil return box of the check valve of one branch road,Oil-out is connected to the rod chamber oil-out of injection oil cylinder,The oil inlet of the injection draining valve of another branch road is connected to the rod chamber oil-out of injection oil cylinder,Oil-out connects oil return box.Back pressure is increased by the hydraulic oil of extrusion oil cylinder extrusion injection oil cylinder ante-chamber.

Description

The die casting machine injection system started steadily
Technical field
The present invention relates to a kind of die casting machine injection system started steadily.
Background technology
The operation principle of die casting is being pushed into the die cavity of mould by injection system high speed and high pressure by the aluminium liquid of liquid, Then be cooled and shaped, but injection system when high speed promotes liquid aluminium liquid if slag inclusion air in aluminium liquid, it is empty Gas can be pushed into mold cavity by a superhigh speed, and stomata will be produced in interiors of products by cooling down, and have a strong impact on product, so existing The air that requirement is brought into injection in die casting is more few better (being preferably no), if larger in the shake of injection startup stage, It is equivalent to, in stirring liquid aluminium liquid, to greatly increase the possibility of slag inclusion air in aluminium liquid, so injection startup is steady right The quality of die-cast product has vital effect.
The content of the invention
The purpose of the present invention is to overcome the shortcomings of the prior art, there is provided a kind of die casting machine injection system started steadily System.
The purpose of the present invention is achieved through the following technical solutions:
The die casting machine injection system started steadily, feature are:Include injection oil cylinder, extrusion oil cylinder, injection draining valve, extruding Ram control valve and check valve, the sidepiece of the rod chamber oil-out of injection oil cylinder are provided with the piston rod intersected with oil-out and are oriented to Hole, piston rod pilot hole position installation extrusion oil cylinder, the piston rod of extrusion oil cylinder may pass through piston rod pilot hole and stretch to injection In the rod chamber oil-out of oil cylinder, pressure oil in-line controls with the rodless cavity oil inlet and extrusion oil cylinder of injection oil cylinder respectively The pressure oil oil inlet of valve is connected, and the rodless cavity oil inlet of the actuator port connection extrusion oil cylinder of extrusion oil cylinder control valve, squeezes The rod chamber oil-out of another actuator port connection extrusion oil cylinder of compressing cylinder control valve, the oil-out of extrusion oil cylinder control valve connect Oil return box is connected to, the rod chamber oil-out of injection oil cylinder is connected with two injection oil return branch roads in parallel, wherein a branch road is provided with Check valve, the oil inlet of check valve are connected to oil return box, and the oil-out of check valve is connected to the rod chamber oil-out of injection oil cylinder, Another branch road is provided with injection draining valve, and the oil inlet of injection draining valve is connected to the rod chamber oil-out of injection oil cylinder, injection The oil-out of draining valve is connected to oil return box.
Further, the die casting machine injection system of above-mentioned steady startup, wherein, the piston rod pilot hole and injection oil The rod chamber oil-out of cylinder intersects vertically.
Further, the die casting machine injection system of above-mentioned steady startup, wherein, the extrusion oil cylinder control valve is three Four way solenoid valve.
The present invention has the advantages of notable and beneficial effect compared with prior art, embodies in the following areas:
Present invention design is unique, structure is novel, by extrusion oil cylinder come the hydraulic oil of extrusion injection oil cylinder ante-chamber, the increase back of the body Pressure, it is ensured that injection startup stage does not shake, and avoids slag inclusion air in aluminium liquid, injection startup is more steady, ensures die-cast product Quality, it is a practical new design.
Brief description of the drawings
Fig. 1:The schematic diagram of present invention extruding working condition;
Fig. 2:The schematic diagram of return working condition of the present invention.
Embodiment
In order to which technical characteristic, purpose and the effect of the present invention is more clearly understood, now compares accompanying drawing and describe in detail Specific embodiment.
As shown in Figure 1 and Figure 2, the die casting machine injection system started steadily, injection oil cylinder 1, extrusion oil cylinder 3, injection row are included Fuel tap V1, extrusion oil cylinder control valve V2 and check valve V3, the rod chamber oil-out B of injection oil cylinder 1 sidepiece be provided with it is fuel-displaced The rod chamber oil-out B of the intersecting piston rod pilot hole of mouth, piston rod pilot hole and injection oil cylinder is intersected vertically, and piston rod is oriented to Extrusion oil cylinder 3 is installed in hole portion position, and what the piston rod 4 of extrusion oil cylinder 3 may pass through that piston rod pilot hole stretches to injection oil cylinder has bar In chamber oil-out B, pressure oil in-line P respectively with the rodless cavity oil inlet A and extrusion oil cylinder control valve V2 of injection oil cylinder Pressure oil oil inlet is connected, and extrusion oil cylinder control valve V2 is three position four-way electromagnetic valve, an extrusion oil cylinder control valve V2 working oil The rodless cavity oil inlet C of mouth connection extrusion oil cylinder 3, extrusion oil cylinder control valve V2 another actuator port connection extrusion oil cylinder 3 Rod chamber oil-out D, extrusion oil cylinder control valve V2 oil-out are connected to oil return box T, and the rod chamber oil-out B of injection oil cylinder connects Two injection oil return branch roads in parallel are connected to, wherein a branch road is provided with check valve V3, check valve V3 oil inlet is connected to oil return Case T, check valve V3 oil-out are connected to the rod chamber oil-out B of injection oil cylinder, and another branch road is provided with injection draining valve V1, Injection draining valve V1 oil inlet is connected to the rod chamber oil-out B of injection oil cylinder, and injection draining valve V1 oil-out is connected to Oil return box T.Injection draining valve V1 uses flow control valve.
Piston is promoted when rodless cavity oil inlet A of the pressure oil from in-line P from injection oil cylinder enters the back cavity of injection oil cylinder 1 Before bar 2 travels forward, the piston rod 4 for controlling extrusion oil cylinder by extrusion oil cylinder control valve V2 travels forward, extrusion oil cylinder 3 Piston rod 4 enters the rod chamber oil-out B of injection oil cylinder, and the ante-chamber hydraulic oil of extrusion injection oil cylinder 1 is (because in injection oil return line Upper that check valve V3 be housed, when ensureing that extrusion oil cylinder extrudes, oil will not flow to oil return box), make injection oil cylinder 1 ante-chamber have it is certain Back-pressure, now starts injection action, and pressure oil enters the work for promoting injection oil cylinder from the rodless cavity oil inlet A of injection oil cylinder Stopper rod 2 travels forward, and because now injection oil cylinder ante-chamber has the squeezing action of extrusion oil cylinder piston rod 4, has certain back pressure Pressure is present, and now cavity pressure can raise moment after injection oil cylinder, tend to the perseverances such as front and rear cavity pressure, now injection draining valve V1 is same When open and make the ante-chamber oil extraction of injection oil cylinder, the piston rod 2 of injection oil cylinder moves forward, chamber before and after injection oil cylinder during due to opening Pressure differential is smaller, so the piston rod 2 of injection oil cylinder is steady when starting forward, without jitter phenomenon, as shown in figure 1, injection is oily When the piston rod 2 of cylinder returns, extrusion oil cylinder control valve V2 commutations, the piston rod 4 of extrusion oil cylinder is retracted, as shown in Figure 2.
By extrusion oil cylinder come the hydraulic oil of extrusion injection oil cylinder ante-chamber, increase back pressure, it is ensured that injection startup stage does not have Shake, slag inclusion air in aluminium liquid is avoided, injection startup is more steady, ensures the quality of die-cast product.
It should be noted that:The preferred embodiment of the present invention is the foregoing is only, is not limited to the power of the present invention Sharp scope;Simultaneously more than description, should can understand and implement for the special personage of correlative technology field, thus it is other without departing from The equivalent change or modification completed under disclosed spirit, should be included in claim.

Claims (3)

1. the die casting machine injection system started steadily, it is characterised in that:Comprising injection oil cylinder, extrusion oil cylinder, injection draining valve, squeeze Compressing cylinder control valve and check valve, the sidepiece of the rod chamber oil-out of injection oil cylinder are provided with the piston rod intersected with oil-out and led Xiang Kong, piston rod pilot hole position installation extrusion oil cylinder, the piston rod of extrusion oil cylinder may pass through piston rod pilot hole and stretch to pressure Penetrate in the rod chamber oil-out of oil cylinder, the rodless cavity oil inlet with injection oil cylinder and the extrusion oil cylinder control respectively of pressure oil in-line The pressure oil oil inlet of valve processed is connected, the rodless cavity oil inlet of the actuator port connection extrusion oil cylinder of extrusion oil cylinder control valve, The rod chamber oil-out of another actuator port connection extrusion oil cylinder of extrusion oil cylinder control valve, the oil-out of extrusion oil cylinder control valve Oil return box is connected to, the rod chamber oil-out of injection oil cylinder is connected with two injection oil return branch roads in parallel, wherein a branch road is installed There is a check valve, the oil inlet of check valve is connected to oil return box, and the rod chamber that the oil-out of check valve is connected to injection oil cylinder is fuel-displaced Mouthful, another branch road is provided with injection draining valve, and the oil inlet of injection draining valve is connected to the rod chamber oil-out of injection oil cylinder, pressure The oil-out for penetrating draining valve is connected to oil return box.
2. the die casting machine injection system according to claim 1 started steadily, it is characterised in that:The piston rod pilot hole Intersected vertically with the rod chamber oil-out of injection oil cylinder.
3. the die casting machine injection system according to claim 1 started steadily, it is characterised in that:The extrusion oil cylinder control Valve is three position four-way electromagnetic valve.
CN201710280309.4A 2017-04-26 2017-04-26 The die casting machine injection system started steadily CN106968995B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710280309.4A CN106968995B (en) 2017-04-26 2017-04-26 The die casting machine injection system started steadily

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710280309.4A CN106968995B (en) 2017-04-26 2017-04-26 The die casting machine injection system started steadily

Publications (2)

Publication Number Publication Date
CN106968995A CN106968995A (en) 2017-07-21
CN106968995B true CN106968995B (en) 2018-02-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710280309.4A CN106968995B (en) 2017-04-26 2017-04-26 The die casting machine injection system started steadily

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4011902A (en) * 1973-10-08 1977-03-15 Gebrueder Buehler Ag Device for pressure casting
CN101239373B (en) * 2008-03-04 2010-06-23 苏州意特机械有限公司 Vertical pressure charging press-shoot system
JP5381161B2 (en) * 2009-02-27 2014-01-08 宇部興産機械株式会社 Die casting machine and die casting method
CN202877515U (en) * 2012-06-26 2013-04-17 苏州三基铸造装备股份有限公司 Hydraulic squeezing system of squeeze casting machine
CN103381478B (en) * 2013-06-26 2015-12-16 东莞市益格机电有限公司 Die casting machine injection system
CN103752792B (en) * 2014-01-26 2016-05-11 东莞市益格机电有限公司 Energy saving die casting machine
CN205437090U (en) * 2016-01-04 2016-08-10 龙吉林 Vertical die casting machine
CN206655850U (en) * 2017-04-26 2017-11-21 苏州三基铸造装备股份有限公司 The die casting machine injection system started steadily

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