CN106623844B - A kind of boosting type hydraulic cylinder injection apparatus for adjusting force - Google Patents
A kind of boosting type hydraulic cylinder injection apparatus for adjusting force Download PDFInfo
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- CN106623844B CN106623844B CN201611099929.XA CN201611099929A CN106623844B CN 106623844 B CN106623844 B CN 106623844B CN 201611099929 A CN201611099929 A CN 201611099929A CN 106623844 B CN106623844 B CN 106623844B
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- piston rod
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- cylinder body
- hydraulic cylinder
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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
- B22D17/2023—Nozzles or shot sleeves
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- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of boosting type hydraulic cylinders to project apparatus for adjusting force, it is intended to which the injection mechanism for solving die casting machine projects power adjusting inconvenience, and injection piston rod, which projects at a slow speed, to carry out material to squeeze not thorough enough the deficiency of exhaust.The invention includes the hydraulic cylinder of T shapes, hydraulic cylinder includes path cylinder body and major diameter cylinder body, the injection piston rod of T shapes is installed in path cylinder body, the supercharging piston rod of T shapes is installed in major diameter cylinder body, it projects piston cylinder and path cylinder body is separated into booster cavity and oil outlet chamber, it projects piston rod miner diameter end and extends path cylinder body, major diameter cylinder body is separated into driving oil pocket and backpressure regulation chamber by supercharging piston rod, the backpressure regulation chamber and booster cavity of setting close to each other are independent two cavitys, supercharging piston rod miner diameter end extends in booster cavity, it is equipped with connection booster cavity in supercharging piston rod and drives the oil-through hole of oil pocket, check (non-return) valve is installed in oil-through hole, backpressure regulation chamber is connected to back pressure accumulator, oil pocket is driven to be connected to stagnation pressure accumulator.
Description
Technical field
The present invention relates to field of die casting machines, more specifically, it relates to which a kind of boosting type hydraulic cylinder projects apparatus for adjusting force.
Background technology
Die casting machine is exactly that solid is obtained after die sinking being cooled and shaped in molten metal bath injection to mold under pressure
A series of industrial foundry machineries of metal casting.Injection mechanism is the important component of die casting machine, real by the design of oil circuit
Now big pressure die casting.Traditional injection mechanism, which projects when power is adjusted, to carry out plus-minus pressure by charge and discharge nitrogen or in total pressure side
Be adjusted, it is inconvenient to adjust, project piston rod project at a slow speed material is carried out squeezing exhaust it is not thorough enough.
Invention content
The present invention overcomes the injection mechanism of die casting machine project power adjust it is inconvenient, project piston rod project at a slow speed to material into
It goes and squeezes not thorough enough the deficiency of exhaust, provide a kind of boosting type hydraulic cylinder injection apparatus for adjusting force, die casting machine projects power tune
It is convenient to save, and injection piston rod projects at a slow speed squeeze exhaust thoroughly to material, it is ensured that the quality of die casting.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：A kind of boosting type hydraulic cylinder injection power tune
Regulating device includes the hydraulic cylinder of T shapes, and hydraulic cylinder includes path cylinder body and major diameter cylinder body, and the injection of T shapes is equipped in path cylinder body
Piston rod is equipped with the supercharging piston rod of T shapes in major diameter cylinder body, projects piston cylinder and path cylinder body is separated into booster cavity and fuel-displaced
Chamber projects piston rod miner diameter end and extends path cylinder body, and major diameter cylinder body is separated into driving oil pocket and back pressure tune by supercharging piston rod
Chamber is saved, the backpressure regulation chamber and booster cavity of setting close to each other are independent two cavitys, and supercharging piston rod miner diameter end extends to
It is equipped with connection booster cavity in booster cavity, in supercharging piston rod and drives the oil-through hole of oil pocket, check (non-return) valve is installed in oil-through hole, carries on the back
Adjusting cavity is pressed to be connected to back pressure accumulator, driving oil pocket is connected to stagnation pressure accumulator.
Press casting procedure includes three injection, quick injection, pressure charging press-shoot processes at a slow speed, and gold is discharged in injection process at a slow speed
Belong to the bubble in liquid.Injection and when quick injection at a slow speed, non-return valve is opened, and booster cavity and oil pocket is driven to be connected to, at this time booster cavity
Interior pressure P1 is equal with the pressure P3 in driving oil pocket.The P3 in pressurization>P1, non-return valve are closed, at this time charged piston
Pressurized energy F1=P3*S3-P2*S2, S4=S3-S2, P1=F1/S4=(P3*S3-P2*S2)/(S3-S2) on bar projects power F
=P1*S1=((P3*S3-P2*S2) * S1)/(S3-S2), because stagnation pressure accumulator can be discharged in entire press casting procedure it is a certain amount of
Fluid causes stagnation pressure accumulator to have certain pressure drop Δ P, therefore F=P1*S1=((（P3-ΔP）*S3-P2*S2)*S1)/(
S3-S2).P1 is the pressure in booster cavity in above formula, and P2 is the pressure of backpressure regulation intracavitary, and P3 is the pressure driven in oil pocket,
S1 is the face area for projecting piston rod and being connected to booster cavity, and S2 is the transition face that supercharging piston rod is connected to backpressure regulation chamber
Area, S3 are the face area that supercharging piston rod is connected to driving oil pocket, and S4 is the end face that supercharging piston rod is connected to booster cavity
Area, F are the injection power for projecting piston rod, and F1 is the pressurized energy of supercharging piston rod.Stagnation pressure accumulator provides supercharging power P3, the back of the body
The pressure P2 that pressure accumulator provides can arbitrarily be set, by above formula as can be seen that can be obtained not by the size for changing P2
Same injection power F, it is easy to adjust that press casting procedure projects power.The boosting type hydraulic cylinder of this programme projects apparatus for adjusting force not only can be with
Using on die casting machine, and the adjusting on other hydraulic mechanisms for projecting power can be used.
Preferably, being equipped with fluctuation pressure regulation connector on the pipeline that stagnation pressure accumulator is connect with driving oil pocket, pressure regulation is fluctuated
Connector includes joint body, and partition board is equipped in joint body, several through-holes are laid on partition board, is equipped with and turns in joint body
Axis is connected with pressure regulation blade in shaft, and the rotatable lid of pressure regulation blade closes through-hole, and drive shaft rotation is connected on joint body
Shaft driving mechanism.
The work of pressure regulation connector, shaft driving mechanism drive shaft rotation, to drive pressure regulation are fluctuated in injection process at a slow speed
Blade rotates, and pressure regulation cover with rotary plate crosses through-hole, and the opening of through-hole first becomes smaller to become larger again, during this fluid flow of through-hole with
The size variation of opening and stir, to make the pressure P3 in driving oil pocket stir, and pressure P1=P3 of booster cavity at this time, because
This projects power F and also fluctuates therewith, is conducive to the bubble being discharged in molten metal under the action of wave force, to improve die casting matter
Amount.
Preferably, shaft driving mechanism includes motor, motor is mounted on joint body outer wall, motor output shaft connection
It seals and is rotatably connected to inside joint body, between motor output shaft and joint body, the connection of motor output shaft end is actively
Bevel gear, driven wheel of differential is connected in shaft, and drive bevel gear and driven wheel of differential are sequentially connected.Motor rotates and passes through master
The cooperation transmission belt turn shaft rotation of dynamic bevel gear and driven wheel of differential is dynamic, simple in structure, reliable for operation.Motor output shaft and connector
Sealing is rotatably connected between ontology, it is ensured that the sealing performance of oil circuit.
Another scheme, shaft driving mechanism include driving motor, and driving motor includes rotor magnetic pole, stator winding, is turned
Sub- magnetic pole is movably arranged in joint body, and stator winding is sleeved on outside joint body, and rotor magnetic pole and stator winding correspondence are set
It sets, rotor magnetic pole is fixedly connected with shaft.After the stator winding electrifying of driving motor, corresponding rotor magnetic pole rotation, from
And shaft is driven to rotate.This structure design does not have leakage point, and joint body is avoided leakage phenomenon occur.
Preferably, pressure regulation blade is in cam-like structure, pressure regulation blade miner diameter end is connect with shaft.The pressure regulation of this structure
Blade rotation process resistance is small, and stability of rotation is reliable.
Preferably, shaft connects installation set close to end positions, uniformly connected between installation set and joint body inner wall
There are several struts, shaft to be rotatably connected with installation set.Installation set is securedly mounted in joint body, shaft both ends and installation
Set is rotatably connected, and not only ensures the smooth rotation of shaft, and ensures the circulation of fluid.
Preferably, oil outlet chamber is communicated to oil storage tank by pipeline.Oil storage tank is convenient for the storage of fluid.
Preferably, joint body both ends are equipped with connecting flange.Connecting flange is convenient for fluctuation pressure regulation connector and pipeline
Connection.
Compared with prior art, the beneficial effects of the invention are as follows：Die casting machine projects the injection power adjusting side of apparatus for adjusting force
Just, injection piston rod projects at a slow speed squeeze exhaust thoroughly to material, it is ensured that the quality of die casting.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the present invention；
Fig. 2 is the structural schematic diagram of the fluctuation pressure regulation connector of the embodiment of the present invention 1；
Fig. 3 is the structural schematic diagram of the fluctuation pressure regulation connector of the embodiment of the present invention 2；
Fig. 4 is the structural schematic diagram of the joint body partition position of the present invention；
In figure：1, hydraulic cylinder, 2, path cylinder body, 3, major diameter cylinder body, 4, project piston rod, 5, supercharging piston rod, 6, supercharging
Chamber, 7, oil outlet chamber, 8, driving oil pocket, 9, backpressure regulation chamber, 10, oil-through hole, 11, check (non-return) valve, 12, back pressure accumulator, 13, stagnation pressure
Accumulator, 14, fluctuation pressure regulation connector, 15, joint body, 16, partition board, 17, through-hole, 18, shaft, 19, pressure regulation blade, 20, electricity
Machine, 21, drive bevel gear, 22, driven wheel of differential, 23, rotor magnetic pole, 24, stator winding, 25, installation set, 26, strut, 27,
Oil storage tank, 28, connecting flange.
Specific implementation mode
Below by specific embodiment, and in conjunction with attached drawing, technical scheme of the present invention is further described：
Embodiment 1：A kind of boosting type hydraulic cylinder injection apparatus for adjusting force（Referring to attached drawing 1, attached drawing 2, attached drawing 4）, including T shapes
Hydraulic cylinder 1, hydraulic cylinder includes path cylinder body 2 and major diameter cylinder body 3, the injection piston rod 4 of T shapes is equipped in path cylinder body, greatly
The supercharging piston rod 5 of T shapes is installed in diameter cylinder body, piston cylinder is projected and path cylinder body is separated into booster cavity 6 and oil outlet chamber 7, penetrate
Go out piston rod miner diameter end and extend path cylinder body, major diameter cylinder body is separated into driving oil pocket 8 and backpressure regulation chamber by supercharging piston rod
9, the backpressure regulation chamber and booster cavity of setting close to each other are independent two cavitys, and supercharging piston rod miner diameter end extends to supercharging
Intracavitary, supercharging piston rod is interior to be equipped with the oil-through hole 10 for being connected to booster cavity and driving oil pocket, is equipped with check (non-return) valve 11 in oil-through hole, the back of the body
Press adjusting cavity connection back pressure accumulator 12, driving oil pocket connection stagnation pressure accumulator 13.Stagnation pressure accumulator is connect with driving oil pocket
Fluctuation pressure regulation connector 14 is installed on pipeline, fluctuation pressure regulation connector includes joint body 15, and partition board 16 is equipped in joint body, every
It is laid with several through-holes 17 on plate, shaft 18 is installed in joint body, pressure regulation blade 19, pressure regulation blade are connected in shaft
Rotatable lid closes through-hole, and the shaft driving mechanism of drive shaft rotation is connected on joint body.Shaft driving mechanism includes electricity
Machine 20, motor are mounted on joint body outer wall, and motor output shaft is connected to inside joint body, motor output shaft and connector sheet
Sealing is rotatably connected between body, and motor output shaft end connects drive bevel gear 21, and driven wheel of differential 22 is connected in shaft,
Drive bevel gear and driven wheel of differential are sequentially connected.Pressure regulation blade is in cam-like structure, and pressure regulation blade miner diameter end is connect with shaft.
Shaft connects installation set 25 close to end positions, and several struts 26 are uniformly connected between installation set and joint body inner wall,
Shaft is rotatably connected with installation set.Oil outlet chamber is communicated to oil storage tank 27 by pipeline.Joint body both ends are equipped with connection method
Orchid 28.
Press casting procedure includes three injection, quick injection, pressure charging press-shoot processes at a slow speed, and gold is discharged in injection process at a slow speed
Belong to the bubble in liquid.Injection and when quick injection at a slow speed, non-return valve is opened, and booster cavity and oil pocket is driven to be connected to, at this time booster cavity
Interior pressure P1 is equal with the pressure P3 in driving oil pocket.The P3 in pressurization>P1, non-return valve are closed, at this time charged piston
Pressurized energy F1=P3*S3-P2*S2, S4=S3-S2, P1=F1/S4=(P3*S3-P2*S2)/(S3-S2) on bar projects power F
=P1*S1=((P3*S3-P2*S2) * S1)/(S3-S2), because stagnation pressure accumulator can be discharged in entire press casting procedure it is a certain amount of
Fluid causes stagnation pressure accumulator to have certain pressure drop Δ P, therefore F=P1*S1=((（P3-ΔP）*S3-P2*S2)*S1)/(
S3-S2).P1 is the pressure in booster cavity in above formula, and P2 is the pressure of backpressure regulation intracavitary, and P3 is the pressure driven in oil pocket,
S1 is the face area for projecting piston rod and being connected to booster cavity, and S2 is the transition face that supercharging piston rod is connected to backpressure regulation chamber
Area, S3 are the face area that supercharging piston rod is connected to driving oil pocket, and S4 is the end face that supercharging piston rod is connected to booster cavity
Area, F are the injection power for projecting piston rod, and F1 is the pressurized energy of supercharging piston rod.Stagnation pressure accumulator provides supercharging power P3, the back of the body
The pressure P2 that pressure accumulator provides can arbitrarily be set, by above formula as can be seen that can be obtained not by the size for changing P2
Same injection power F, it is easy to adjust that press casting procedure projects power.The work of pressure regulation connector, shaft driving machine are fluctuated in injection process at a slow speed
Structure drive shaft rotates, and to drive pressure regulation blade to rotate, pressure regulation cover with rotary plate crosses through-hole, and the opening of through-hole first becomes smaller to become larger again,
Fluid flow of through-hole is stirred with the size variation of opening during this, to make the pressure P3 in driving oil pocket dial
It is dynamic, and pressure P1=P3 of booster cavity at this time, therefore project power F and also fluctuate therewith, be conducive to discharge gold under the action of wave force
Belong to the bubble in liquid, to improve die casting quality.
Embodiment 2：A kind of boosting type hydraulic cylinder injection apparatus for adjusting force（Referring to attached drawing 3）, structure and 1 phase of embodiment
Seemingly, main difference is in the present embodiment that shaft driving mechanism includes driving motor, and driving motor includes rotor magnetic pole 23, determines
Sub- winding 24, rotor magnetic pole is movably arranged in joint body, and stator winding is sleeved on outside joint body, rotor magnetic pole and stator
Winding is correspondingly arranged, and rotor magnetic pole is fixedly connected with shaft.Other structures are same as Example 1.
Embodiment described above is two kinds of preferable schemes of the present invention, is not made in any form to the present invention
Limitation, on the premise of not exceeding the technical scheme recorded in the claims also other variations and modifications.
Claims (6)
1. a kind of boosting type hydraulic cylinder projects apparatus for adjusting force, characterized in that include the hydraulic cylinder of T shapes, hydraulic cylinder includes path
Cylinder body and major diameter cylinder body are equipped with the injection piston rod of T shapes in path cylinder body, the charged piston of T shapes are equipped in major diameter cylinder body
Bar projects piston cylinder and path cylinder body is separated into booster cavity and oil outlet chamber, projects piston rod miner diameter end and extends path cylinder body, increases
Major diameter cylinder body is separated into driving oil pocket and backpressure regulation chamber, the backpressure regulation chamber and booster cavity of setting close to each other by pressure piston rod
Be independent two cavitys, supercharging piston rod miner diameter end extends in booster cavity, be equipped in supercharging piston rod connection booster cavity and
The oil-through hole of oil pocket is driven, check (non-return) valve is installed in oil-through hole, backpressure regulation chamber is connected to back pressure accumulator, and driving oil pocket connection is total
Press accumulator；Fluctuation pressure regulation connector is installed, fluctuation pressure regulation connector includes on the pipeline that stagnation pressure accumulator is connect with driving oil pocket
Joint body, joint body is interior to be equipped with partition board, is laid with several through-holes on partition board, shaft, shaft are equipped in joint body
On be connected with pressure regulation blade, the rotatable lid of pressure regulation blade closes through-hole, and the shaft that drive shaft rotation is connected on joint body is driven
Motivation structure；Oil outlet chamber is communicated to oil storage tank by pipeline.
2. a kind of boosting type hydraulic cylinder according to claim 1 projects apparatus for adjusting force, characterized in that shaft driving mechanism
Including motor, motor is mounted on joint body outer wall, and motor output shaft is connected to inside joint body, motor output shaft with connect
It sealing and is rotatably connected between head ontology, motor output shaft end connects drive bevel gear, and driven wheel of differential is connected in shaft,
Drive bevel gear and driven wheel of differential are sequentially connected.
3. a kind of boosting type hydraulic cylinder according to claim 1 projects apparatus for adjusting force, characterized in that shaft driving mechanism
Including driving motor, driving motor includes rotor magnetic pole, stator winding, and rotor magnetic pole is movably arranged in joint body, stator
Winding is sleeved on outside joint body, and rotor magnetic pole and stator winding are correspondingly arranged, and rotor magnetic pole is fixedly connected with shaft.
4. a kind of boosting type hydraulic cylinder according to claim 1 or 2 or 3 projects apparatus for adjusting force, characterized in that pressure regulation is revolved
Piece is in cam-like structure, and pressure regulation blade miner diameter end is connect with shaft.
5. a kind of boosting type hydraulic cylinder according to claim 1 or 2 or 3 projects apparatus for adjusting force, characterized in that shaft is leaned on
Two close end position connects installation set, and several struts, shaft and installation are uniformly connected between installation set and joint body inner wall
Set is rotatably connected.
6. a kind of boosting type hydraulic cylinder according to claim 1 or 2 or 3 projects apparatus for adjusting force, characterized in that connector sheet
Body both ends are equipped with connecting flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099929.XA CN106623844B (en) | 2016-12-02 | 2016-12-02 | A kind of boosting type hydraulic cylinder injection apparatus for adjusting force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611099929.XA CN106623844B (en) | 2016-12-02 | 2016-12-02 | A kind of boosting type hydraulic cylinder injection apparatus for adjusting force |
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| Publication Number | Publication Date |
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| CN106623844A CN106623844A (en) | 2017-05-10 |
| CN106623844B true CN106623844B (en) | 2018-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5194421A (en) * | 1975-02-18 | 1976-08-19 | Daikasutomashinno shashutsusochi | |
| JPS52126618A (en) * | 1976-04-16 | 1977-10-24 | Toyota Motor Co Ltd | Method of die casting |
| JPH07227667A (en) * | 1994-02-22 | 1995-08-29 | Toyota Motor Corp | Die casting method |
| CN1572392A (en) * | 2003-05-09 | 2005-02-02 | 东芝机械株式会社 | Injection system and casting method of die casting machine |
| CN202779687U (en) * | 2012-07-19 | 2013-03-13 | 湖州机床厂有限公司 | Rapid pressurizing injection device of hydraulic machine |
| CN206263242U (en) * | 2016-12-02 | 2017-06-20 | 宁波铝台精机有限公司 | Boosting type hydraulic cylinder projects power governor motion |
-
2016
- 2016-12-02 CN CN201611099929.XA patent/CN106623844B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5194421A (en) * | 1975-02-18 | 1976-08-19 | Daikasutomashinno shashutsusochi | |
| JPS52126618A (en) * | 1976-04-16 | 1977-10-24 | Toyota Motor Co Ltd | Method of die casting |
| JPH07227667A (en) * | 1994-02-22 | 1995-08-29 | Toyota Motor Corp | Die casting method |
| CN1572392A (en) * | 2003-05-09 | 2005-02-02 | 东芝机械株式会社 | Injection system and casting method of die casting machine |
| CN202779687U (en) * | 2012-07-19 | 2013-03-13 | 湖州机床厂有限公司 | Rapid pressurizing injection device of hydraulic machine |
| CN206263242U (en) * | 2016-12-02 | 2017-06-20 | 宁波铝台精机有限公司 | Boosting type hydraulic cylinder projects power governor motion |
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| Publication number | Publication date |
|---|---|
| CN106623844A (en) | 2017-05-10 |
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