CN208268127U - A kind of no pressurizing cylinder supercharging device - Google Patents
A kind of no pressurizing cylinder supercharging device Download PDFInfo
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- CN208268127U CN208268127U CN201820443233.2U CN201820443233U CN208268127U CN 208268127 U CN208268127 U CN 208268127U CN 201820443233 U CN201820443233 U CN 201820443233U CN 208268127 U CN208268127 U CN 208268127U
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- pump group
- high pressure
- accumulator
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Abstract
The utility model discloses a kind of no pressurizing cylinder supercharging device, which includes injection oil cylinder, low pressure pump group, high pressure variable pump group, high pressure accumulator and quick accumulator；The front end of injection oil cylinder, which is equipped with, hammers preceding valve into shape, and valve is connected with quick accumulator before hammering into shape, and the rear end of injection oil cylinder is equipped with valve after hammer, and valve is connected with the end P oil-feed port, the quick accumulator of the end P oil-feed port connection after hammer；Low pressure pump group is connected with high pressure variable pump group, and high pressure variable pump group is connected with HD1 energy storage valve, and HD1 energy storage valve is connected with high pressure accumulator.Apparatus structure is simple, it builds pressure quickly, builds and press the time that can promote 12ms, dramatically improve the boost performance of large-scale die-casting machine injection part, it solves die casting machine parameter in the prior art and is not able to satisfy the difficult point that part sophisticated product requires casting technique, effectively increase the yield rate of product.
Description
Technical field
The utility model relates to build pressure oil piping system, and in particular to a kind of no pressurizing cylinder supercharging device.
Background technique
Die casting machine is one of common machinery of machinery industry, for applying high pressure die casting molding to metal product, therefore is pressed
The settling time of power, this was extremely important with parameter.Pressure time rule is built in 25-30ms to large machines in national standard at present, but in fact
The pressure settling time of Ji Shang die casting machine manufacturer is in 30ms or more.
The injection motion flow of die casting machine is general are as follows: one section at a slow speedTwo sections at a slow speedQuicklyPressurizationPressure maintainingWith going outReturn hammerInjection is completed.Most important one is " quicklyPressurization " section, needs in this section of convergence process
PLC receives position and pressure signal, outputs signal to boost electromagnetic valve coil, line solenoid valve by PLC again after reaching setting value
Circle response pusher moving electromagnetic valve spool exhausts control oil, and the spool of inserted valve just begins to respond to act at this time, after inserting response valve
It pushes pressurizing cylinder to start to act, should also need the pressure generated by pressurizing cylinder and liquid flow path direction to make high-low pressure in the process
Valve is closed, and the everything during being somebody's turn to do requires certain response time, so that quickly injection terminates to pressurization reality
Time started postpones backward, and the pressure settling time of pressurization is caused to be postponed backward, when seriously affecting the actual act response for building pressure
Between.
For building pressure this parameter of time, it is desirable that be more shorter better, but be limited to current die casting machine supercharging mode structure
It influences, is affected so that the pressure time is built in pressurization by extraneous factor.Current production technology is needed, 30ms's has built the pressure time
Through the product for being insufficient for part hot investment casting；Therefore it is required to improve machine performance, it would be desirable in traditional die casting machine
Further improvement plan is made on supercharging mode.
Utility model content
The purpose of this utility model is that in view of the deficiencies of the prior art, it is simpler to provide a kind of pressurized construction, builds pressure more
Quickly efficient die casting machine is without pressurizing cylinder supercharging device.
In order to solve the above-mentioned technical problem, it adopts the following technical scheme that
Valve (V10), low-lift pump after a kind of no pressurizing cylinder supercharging device, including the preceding valve (V9) of injection oil cylinder (Q), hammer, hammer
Group (P1), high pressure variable pump group (P2), HD1 energy storage valve (V4), high pressure accumulator (HD1) and quick accumulator (HD2)；The pressure
The front end for penetrating oil cylinder (Q), which is equipped with, hammers preceding valve (V9) into shape, and valve (V9) is connected with quick accumulator (HD2) before the hammer, the injection oil
The rear end of cylinder (Q) is equipped with valve (V10) after hammer, and valve (V10) is connected with the end P oil-feed port after the hammer, and the end P oil-feed port connects institute
State quick accumulator (HD2)；The low pressure pump group (P1) is connected with high pressure variable pump group (P2), the high pressure variable pump group (P2)
It is connected with HD1 energy storage valve (V4), the HD1 energy storage valve (V4) is connected with high pressure accumulator (HD1).
Further, one end of the low pressure pump group (P1) is connected with oil filter (F1), the low pressure pump group (P1) it is another
End is connected with cooler (C1), and the cooler (C1) is connected with flow divider (V1).
Further, one end of the high pressure variable pump group (P2) is connected with high-precision oil filter (F2), the high-precision filter
Oily device (F2) connects the cooler (C1), and the other end of the high pressure variable pump group (P2) is connected with high pressure pump group pressure feedback
Device (R1) and safe pressure control valve (V2).
Further, the high pressure variable pump group (P2) is connected with pressure safety valve (V5), and the pressure safety valve (V5) is even
The rear end of the injection oil cylinder (Q) is connect, the pressure safety valve (V5) connects shot sleeve rod chamber pressure detector (R5), described
Shot sleeve rod chamber pressure detector (R5) is connected with ante-chamber throttle valve (V11) and ante-chamber safety valve (V12).
Further, the high pressure accumulator (HD1) is connected with the safe fuel outlet valve of HD1 (V6) and pressurization proportioning valve (V7), institute
It states pressurization proportioning valve (V7) and is connected with classification relief valve (V8), the classification relief valve (V8) is connected to the injection oil cylinder (Q)
Front end.
Further, the high pressure accumulator (HD1) is connected with HD1 pressure control sensor (R2) and HD1 pressure security control
Valve (V15) processed.
Further, the quick accumulator (HD2) is connected with HD2 energy storage valve (V14), HD2 energy storage valve (V14) connection
There is the preceding valve (V9) of hammer.
Further, the quick accumulator (HD2) is connected with HD2 pressure control sensor (R3) and HD2 pressure security control
Valve (V16) processed.
Further, the quick accumulator (HD2) is connected with quick valve (V13), and the quick valve (V13) is connected with injection
Cylinder rodless cavity pressure detector (R4), the shot sleeve rodless cavity pressure detector (R4) are connected to the injection oil cylinder (Q)
Front end.
As a result of the above technical solution, the following beneficial effects are obtained:
The utility model is a kind of no pressurizing cylinder supercharging device and method, and the apparatus structure is simple, builds pressure quickly, design
Novelty builds and presses the time that can promote 12ms, dramatically improves the boost performance of large-scale die-casting machine injection part, solve
Die casting machine parameter is not able to satisfy the difficult point that part sophisticated product requires casting technique in the prior art, effectively increases product
Yield rate.
Compared with conventional die casting machine supercharging device, the program eliminates system in pressurizing cylinder and pressurization the device
The pressurization isolating valve of isolation, the injection cavity pressure of direct lifting system make pressure establish mode more directly, quickly, have
Structure is simpler, builds the advantages that pressing the time shorter.
The more traditional die casting machine of this method eliminates pressurizing cylinder and high and low voltage isolation valve in structure, so that system structure
Simpler, failure rate is lower, while when can save the response of relevant pilot control valve, pressurized cylinder and high and low voltage isolation valve
Between, which can be such that injection power reliably rises rapidly after the completion of quick injection；Separately increase in the rodless cavity of injection oil cylinder
Add high pressure relief valve, eliminates the compression shock of oil piping system, keeps piston rod movement more stable, builds the pressure time than traditional pressurization side
Formula is nearly 2 times fast.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is a kind of structural schematic diagram of no pressurizing cylinder supercharging device in the utility model.
Specific embodiment
As shown in Figure 1, valve after a kind of no pressurizing cylinder supercharging device, including the preceding valve (V9) of injection oil cylinder (Q), hammer, hammer
(V10), low pressure pump group (P1), high pressure variable pump group (P2), HD1 energy storage valve (V4), high pressure accumulator (HD1) and quick accumulator
(HD2)；The front end of the injection oil cylinder (Q), which is equipped with, hammers preceding valve (V9) into shape, and valve (V9) is connected with quick accumulator before the hammer
(HD2), the rear end of the injection oil cylinder (Q) is equipped with valve (V10) after hammer, and valve (V10) is connected with the end P oil-feed port, institute after the hammer
It states the end P oil-feed port and connects the quick accumulator (HD2)；The low pressure pump group (P1) is connected with high pressure variable pump group (P2), institute
It states high pressure variable pump group (P2) and is connected with HD1 energy storage valve (V4), the HD1 energy storage valve (V4) is connected with high pressure accumulator (HD1).
Low pressure pump group (P1) is that common low pressure blade pumps, and effect is to provide oil suction base pressure for high pressure variable pump group (P2).
As the utility model embodiment, one end of the low pressure pump group (P1) is connected with oil filter (F1), the low pressure
The other end of pump group (P1) is connected with cooler (C1), and the cooler (C1) is connected with flow divider (V1).
As the utility model embodiment, one end of the high pressure variable pump group (P2) is connected with high-precision oil filter
(F2), the high-precision oil filter (F2) connects the cooler (C1), the other end connection of the high pressure variable pump group (P2)
There are high pressure pump group pressure feedback device (R1) and safe pressure control valve (V2).
As the utility model embodiment, the high pressure variable pump group (P2) is connected with pressure safety valve (V5), the pressure
Power safety valve (V5) connects the rear end of the injection oil cylinder (Q), and the pressure safety valve (V5) connects shot sleeve rod chamber pressure
Detector (R5), the shot sleeve rod chamber pressure detector (R5) are connected with ante-chamber throttle valve (V11) and ante-chamber safety valve
(V12).
As the utility model embodiment, the high pressure accumulator (HD1) is connected with the safe fuel outlet valve of HD1 (V6) and pressurization
Proportioning valve (V7), the pressurization proportioning valve (V7) are connected with classification relief valve (V8), and the classification relief valve (V8) is connected to institute
State the front end of injection oil cylinder (Q).
As the utility model embodiment, the high pressure accumulator (HD1) be connected with HD1 pressure control sensor (R2) and
HD1 pressure security control valve (V15).
As the utility model embodiment, the quick accumulator (HD2) is connected with HD2 energy storage valve (V14), the HD2
Energy storage valve (V14) is connected with valve (V9) before hammer.
As the utility model embodiment, the quick accumulator (HD2) be connected with HD2 pressure control sensor (R3) and
HD2 pressure security control valve (V16).
As the utility model embodiment, the quick accumulator (HD2) is connected with quick valve (V13), the quick valve
(V13) it is connected with shot sleeve rodless cavity pressure detector (R4), the shot sleeve rodless cavity pressure detector (R4) is connected to institute
State the front end of injection oil cylinder (Q).
The working principle of the present apparatus: after low pressure pump group (P1) passes through oil filter (F1) coarse filtration fuel feeding to cooler (C1),
Hydraulic oil a part after subcooler (C1) returns to the fuel tank of low pressure pump group (P1) by flow divider (V1), to entire hydraulic
The oil liquid of system is cooled down, and another part passes through high-precision oil filter (F2) to high pressure variable pump group (P2) fuel feeding, it is ensured that
The hydraulic oil accuracy class that high pressure variable pump group (P2) provides is not less than NAS7 grades, the work pressure that high pressure variable pump group (P2) provides
Power is up to 420bar.Having high pressure pump group pressure feedback device in the outlet of high pressure variable pump group (P2), (R1 does pressure control and peace
Total pressure force control valve (V2) does pressure security protection.High pressure variable pump group (P2) is only to high pressure accumulator (HD1) fuel feeding, wherein high
Pressure accumulator (HD1) energy storage is controlled by HD1 pressure control sensor (R2) control HD1 energy storage valve (V4), is stored in high pressure
The oily end of energy device (HD1) has addition HD1 pressure security control valve (V15) to carry out protection and HD1 safety to highest energy-storage pressure
Fuel outlet valve (V6) is to realize decompression protection in emergency to high pressure accumulator (HD1).When realizing pressurizing action, pass through injection
Triggering is pressurized proportioning valve (V7) for high pressure accumulator (HD1) when cylinder rodless cavity pressure detector (R4) pressure detecting reaches setting value
High pressure oil be supplied to injection oil cylinder (Q), realization directly applies high-pressure to shot piston, with injection needed for meeting product
Force request, being equipped with shot sleeve rodless cavity pressure detector (R4) and shot sleeve in injection rodless cavity and injection rod chamber has
Rod cavity pressure detector (R5) carries out real-time monitoring to pressure, which can make injection power reliable after the completion of quick injection
Rise rapidly；Separately increase high-pressure decompression valve in the rodless cavity of injection oil cylinder, eliminates the compression shock of oil piping system, make piston
Bar movement is more stable.
Compared with conventional die casting machine supercharging device, the program eliminates system in pressurizing cylinder and pressurization the device
The pressurization isolating valve of isolation, the injection cavity pressure of direct lifting system make pressure establish mode more directly, quickly, have
Structure is simpler, builds the advantages that pressing the time shorter.
In actual use, comprising the following steps:
(1) preliminary preparation of injection partial act: by computer confirmation high pressure accumulator (HD1) and quick accumulator
(HD2) whether pressure has reached setting value；It is such as not up to setting value, then by the end system P oil-feed port fuel feeding, HD2 energy storage valve
(V14) energy storage, HD2 pressure control sensor (R3) control quick accumulator (HD2) pressure value, reach setting value and stop automatically
Only.
At the same time, low pressure pump group (P1) is working always, low pressure pump group (P1) available pressure value in 15-30bar,
Hydraulic oil is cooling by cooler (C1) after oil filter (F1) coarse filtration, and a portion oil liquid is returned by flow divider (V1)
The fuel tank for returning low pressure pump group (P1) achievees the effect that carry out continuing cooling to oil liquid；Another part oil liquid passes through high-precision oil strain
Device (F2) feeds to high pressure variable pump group (P2), at this time by HD1 pressure control sensor (R2) feedback pressure to high pressure variable pump group
(P2) it automatically adjusts, pressure security value is controlled by safe pressure control valve (V2), and high pressure variable pump group (P2) provides
Pressure is controlled in 420bar.
High pressure variable pump group (P2) confesses hydraulic oil and carries out energy storage, storage to high pressure accumulator (HD1) through HD1 energy storage valve (V4)
Energy pressure is controlled by HD1 pressure control sensor (R2), and energy storage safe pressure value is controlled by HD1 pressure security control valve (V15),
When high pressure accumulator (HD1) energy storage reaches setting value, signal is issued by HD1 pressure control sensor (R2) and stops energy storage, this
When low pressure pump group (P1) oil liquid for confessing pass through flow divider (V1) oil return box oil liquid cooled down.
(2) injection oil cylinder (Q) first segment acts at a slow speed: by the end system P oil-feed port fuel feeding, valve (V9) work and classification before hammering into shape
Relief valve (V8) work, delivery rate are not worked by ante-chamber throttle valve (V11) real-time control, remaining oil valve, and delivery rate is not
It is preferably too fast, prevent molten aluminum from splashing material and volume gas.
(3) injection oil cylinder (Q) second segment acts at a slow speed: by the end system P oil-feed port fuel feeding, valve (V9) work and classification before hammering into shape
Relief valve (V8) work, while quickly accumulator (HD2) fuel feeding, quick valve (V13) and ante-chamber throttle valve (V11) work, fuel feeding
Speed is adjusted by ante-chamber throttle valve (V11) real-time control, delivery rate according to Product Process, and ante-chamber safety valve (V12) is to ante-chamber
Play the role of back-pressure protection when throttling, remaining oil valve does not work；
(4) injection oil cylinder (Q) high speed motion: by the end system P oil-feed port fuel feeding, valve (V9) work and classification relief valve before hammering into shape
(V8) work, while quickly accumulator (HD2) fuel feeding, quick valve (V13) and ante-chamber throttle valve (V11) work, delivery rate by
Ante-chamber throttle valve (V11) real-time control, delivery rate are adjusted according to Product Process, when ante-chamber safety valve (V12) throttles to ante-chamber
Play the role of back-pressure protection, remaining oil valve does not work；With step (3) difference: the fuel feeding of injection oil cylinder (Q) high speed motion at this time
Speed is higher than the delivery rate that injection oil cylinder (Q) second segment acts at a slow speed.
(5) pressurizing action: pass through the position detection and shot sleeve rodless cavity pressure detector (R4) to shot piston
Oil pressure detection to injection oil cylinder rodless cavity, when reaching setting value, high pressure accumulator (HD1) fuel feeding is pressurized proportioning valve (V7)
With classification relief valve (V8) work, by production technology adjusting delivery rate, while ante-chamber throttle valve (V11) standard-sized sheet, before this hour hammer
Valve (V9) and quick valve (V13) can be closed and can not be closed, remaining oil valve does not work；Each related oil valve is just saved herein closes institute
The time needed also eliminates the time of traditional die casting machine pressurization starting control, reduces pressurization pilot valve response time and increasing
The inserted valve response time is pressed, eliminates the response time of charged piston and the closing response time of high and low voltage isolation valve, greatly
The time for improving boost pressure foundation of degree.
(6) with going out to act: by quick accumulator (HD2) fuel feeding, quick valve (V13) and classification relief valve (V8) work, together
When ante-chamber throttle valve (V11) work, control with going out delivery rate, remaining oil valve does not work；
(7) return hammer movement: by the end system P oil-feed port fuel feeding, valve (V10) works after hammer, remaining oil valve is in the normal state position,
Injection rod starts back to retract, and when return, which detects, issues signal, returns hammer movement and stops, an injection circulation action is completed.
Above-mentioned steps, more traditional die casting machine eliminates pressurizing cylinder and high and low voltage isolation valve in structure, so that system
Structure is simpler, and failure rate is lower, while can save the response of relevant pilot control valve, pressurized cylinder and high and low voltage isolation valve
Time can be such that injection power reliably rises rapidly after the completion of quick injection；Separately increase high pressure in the rodless cavity of injection oil cylinder to let out
Pressure valve eliminates the compression shock of oil piping system, keeps piston rod movement more stable, it is faster by nearly 2 than traditional supercharging mode to build the pressure time
Times.
The above are only specific embodiments of the present invention, but the technical characteristics of the utility model is not limited thereto.Appoint
How based on the utility model, to solve essentially identical technical problem, essentially identical technical effect is realized, madely
Simple change, equivalent replacement or modification etc., are all covered by among the protection scope of the utility model.
Claims (9)
1. a kind of no pressurizing cylinder supercharging device, it is characterised in that: including valve after valve (V9), hammer before injection oil cylinder (Q), hammer
(V10), low pressure pump group (P1), high pressure variable pump group (P2), HD1 energy storage valve (V4), high pressure accumulator (HD1) and quick accumulator
(HD2)；The front end of the injection oil cylinder (Q), which is equipped with, hammers preceding valve (V9) into shape, and valve (V9) is connected with quick accumulator before the hammer
(HD2), the rear end of the injection oil cylinder (Q) is equipped with valve (V10) after hammer, and valve (V10) is connected with the end P oil-feed port, institute after the hammer
It states the end P oil-feed port and connects the quick accumulator (HD2)；The low pressure pump group (P1) is connected with high pressure variable pump group (P2), institute
It states high pressure variable pump group (P2) and is connected with HD1 energy storage valve (V4), the HD1 energy storage valve (V4) is connected with high pressure accumulator (HD1).
2. a kind of no pressurizing cylinder supercharging device according to claim 1, it is characterised in that: the low pressure pump group (P1)
One end is connected with oil filter (F1), and the other end of the low pressure pump group (P1) is connected with cooler (C1), the cooler (C1)
It is connected with flow divider (V1).
3. a kind of no pressurizing cylinder supercharging device according to claim 2, it is characterised in that: the high pressure variable pump group
(P2) one end is connected with high-precision oil filter (F2), and the high-precision oil filter (F2) connects the cooler (C1), described
The other end of high pressure variable pump group (P2) is connected with high pressure pump group pressure feedback device (R1) and safe pressure control valve (V2).
4. a kind of no pressurizing cylinder supercharging device according to claim 1, it is characterised in that: the high pressure variable pump group
(P2) it is connected with pressure safety valve (V5), the pressure safety valve (V5) connects the rear end of the injection oil cylinder (Q), the pressure
Safety valve (V5) connects shot sleeve rod chamber pressure detector (R5), and the shot sleeve rod chamber pressure detector (R5) is connected with
Ante-chamber throttle valve (V11) and ante-chamber safety valve (V12).
5. a kind of no pressurizing cylinder supercharging device according to claim 1, it is characterised in that: the high pressure accumulator
(HD1) it is connected with the safe fuel outlet valve of HD1 (V6) and pressurization proportioning valve (V7), the pressurization proportioning valve (V7) is connected with classification pressure release
Valve (V8), classification relief valve (V8) are connected to the front end of the injection oil cylinder (Q).
6. a kind of no pressurizing cylinder supercharging device according to claim 5, it is characterised in that: the high pressure accumulator
(HD1) HD1 pressure control sensor (R2) and HD1 pressure security control valve (V15) are connected with.
7. a kind of no pressurizing cylinder supercharging device according to claim 1, it is characterised in that: the quick accumulator
(HD2) it is connected with HD2 energy storage valve (V14), the HD2 energy storage valve (V14) is connected with valve (V9) before hammer.
8. a kind of no pressurizing cylinder supercharging device according to claim 7, it is characterised in that: the quick accumulator
(HD2) HD2 pressure control sensor (R3) and HD2 pressure security control valve (V16) are connected with.
9. a kind of no pressurizing cylinder supercharging device according to claim 7, it is characterised in that: the quick accumulator
(HD2) it is connected with quick valve (V13), the quick valve (V13) is connected with shot sleeve rodless cavity pressure detector (R4), the pressure
Penetrate the front end that cylinder rodless cavity pressure detector (R4) is connected to the injection oil cylinder (Q).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443233.2U CN208268127U (en) | 2018-03-30 | 2018-03-30 | A kind of no pressurizing cylinder supercharging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820443233.2U CN208268127U (en) | 2018-03-30 | 2018-03-30 | A kind of no pressurizing cylinder supercharging device |
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| Publication Number | Publication Date |
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| CN208268127U true CN208268127U (en) | 2018-12-21 |
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ID=64676510
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443240A (en) * | 2018-03-30 | 2018-08-24 | 宁波海天金属成型设备有限公司 | A kind of no pressurizing cylinder supercharging device and method |
-
2018
- 2018-03-30 CN CN201820443233.2U patent/CN208268127U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443240A (en) * | 2018-03-30 | 2018-08-24 | 宁波海天金属成型设备有限公司 | A kind of no pressurizing cylinder supercharging device and method |
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