CN103736959A - Multi-stage speed injection system - Google Patents

Multi-stage speed injection system Download PDF

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Publication number
CN103736959A
CN103736959A CN201310726128.1A CN201310726128A CN103736959A CN 103736959 A CN103736959 A CN 103736959A CN 201310726128 A CN201310726128 A CN 201310726128A CN 103736959 A CN103736959 A CN 103736959A
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CN
China
Prior art keywords
oil
line
piston rod
mouth
fuel
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Legal status (The legal status 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 status listed.)
Pending
Application number
CN201310726128.1A
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Chinese (zh)
Inventor
孔跃明
杨凌峰
杨苏鹏
赵峰
夏志勇
刘政权
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SUZHOU SANJI CASTING EQUIPMENT CO Ltd
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SUZHOU SANJI CASTING EQUIPMENT CO Ltd
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Priority to CN201310726128.1A priority Critical patent/CN103736959A/en
Publication of CN103736959A publication Critical patent/CN103736959A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a multi-stage speed injection system. The injection system comprises a cylinder body, a piston rod, an acceleration oil through rod and an oil supply pipeline system, wherein the cylinder body comprises an oil-cylinder front cavity and an oil-cylinder rear cavity, an oil outlet is formed in the oil-cylinder front cavity, and a first oil inlet and a second oil inlet are formed in the oil-cylinder rear cavity; the piston rod is arranged in the cylinder body, and an inner hole is formed in the piston rod; the radial section area of the piston of the piston rod is S1, the radial section area of the inner hole is S2, and S1 is greater than S2; one end of the acceleration oil through rod is arranged in the piston rod, an oil through hole is formed in the acceleration oil through rod, and the oil through hole is communicated with the inner hole; the oil supply pipeline system is used for supplying hydraulic oil to the cylinder body. The multi-stage speed injection system disclosed by the invention is capable of selecting one or more speeds at random according to the needs of a device, and capable of switching hydraulic direction valves as needed respectively to control the flow direction of a hydraulic pressure, so as to obtain various speeds in a certain stroke.

Description

Multistage speed injection system
Technical field
The present invention relates to casting machine technical field, particularly a kind of multistage speed injection system.
Background technology
Casting machine is the indispensable equipment of machine industry, existing casting method has: gravitational casting, compression casting, centrifugal casting, the polytypes such as low pressure casting, various cast types have different casting machines, pressure casting machine is a kind of complete molding equipment of automation of realizing advanced Extrution casting technique, this equipment is highly suitable for high fine and close, high airtight, high strength, the aluminium of strong mechanical performance, the production of Mg alloy castings, product is widely used for automobile, motorcycle, electrical equipment, five metals, aviation, the industry stressed members such as military project, wearing piece, withstand voltage, the manufacture of air-tightness part.
Injection is the core technology of casting machine, cast different devices and need different injection speeds, in prior art, obtain being the flow of increasing system oil pump or reducing corresponding piston and cylinder sleeve diameter (reducing sectional area) of taking at a high speed, this method power consumption is high, efficiency is low, and injection system is in the past that single differential circuit cannot meet the different multiple speed requirement of device of casting.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is to provide a kind of multistage speed injection system, to meet the multiple speed requirement of casting different components.
(2) technical scheme
In order to address the above problem, the invention provides a kind of multistage speed injection system, described in
Injection system comprises:
Cylinder body, it comprises oil cylinder ante-chamber and oil cylinder back cavity, and described oil cylinder ante-chamber is provided with oil-out, and described oil cylinder back cavity is provided with the first oil-in and the second oil-in;
Piston rod, it is located in described cylinder body, and described piston rod inside is provided with endoporus, and the radial section of the piston of described piston rod amasss as S1, and the radial section of endoporus amasss as S2, S1>S2;
Accelerated beam hanger, described piston rod inside is located in its one end, and the described beam hanger inside of accelerating is provided with oil-through hole, and described oil-through hole is communicated with described endoporus;
Oil feed line system, it is for to described cylinder body supply hydraulic fluid.
Wherein, described oil feed line system comprises: fuel-displaced unit, oil-feed unit, between described fuel-displaced unit and described oil-out, be provided with fuel-displaced pipeline, between described oil-feed unit and described the first oil-in, be provided with the first in-line, between described oil-feed unit and described the second oil-in, be provided with the second in-line, between described fuel-displaced pipeline and described the first in-line, be provided with the first bypass line, between described the first bypass line and the second in-line, be provided with the second bypass line;
Wherein, the junction of fuel-displaced pipeline and the first bypass line is TC; the junction of the first bypass line and the second bypass line is CA; the junction of the first bypass line and the first in-line is AP; the junction of the first in-line and the second in-line is PA, and the junction of the second bypass line and the second in-line is PB;
Wherein, between fuel-displaced unit and TC, be provided with hydraulic directional valve V1, between CA and AP, be provided with hydraulic directional valve V2, between CA and PB, be provided with hydraulic directional valve V3, between AP and PA, be provided with hydraulic directional valve V4, between PA and PB, be provided with hydraulic directional valve V5.
(3) beneficial effect
The present invention can select arbitrarily some or multiple speed according to device requirement, also can in certain section of stroke, switch respectively according to demand the flow direction that hydraulic directional valve controls hydraulic pressure to obtain multiple speed.
Accompanying drawing explanation
Fig. 1 is the structural representation of one embodiment of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples are used for illustrating the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the invention provides a kind of multistage speed injection system, described injection system comprises:
Cylinder body 2, it comprises oil cylinder ante-chamber 21 and oil cylinder back cavity 22, and described oil cylinder ante-chamber 21 is provided with oil-out C, and described oil cylinder back cavity 22 is provided with the first oil-in A and the second oil-in B;
Piston rod 1, it is located in described cylinder body 2, and described piston rod 1 inside is provided with endoporus 11, and the radial section of the piston of described piston rod 1 amasss as S1, and the radial section of endoporus 11 amasss as S2, S1>S2;
Accelerated beam hanger 3, described piston rod 1 inside is located in its one end, and described beam hanger 3 inside of accelerating are provided with oil-through hole 31, and described oil-through hole 31 is communicated with described endoporus 11;
Oil feed line system, it is for to described cylinder body 3 supply hydraulic fluids.
Wherein, described oil feed line system comprises: fuel-displaced unit T, oil-feed unit P, between described fuel-displaced unit T and described oil-out C, be provided with fuel-displaced pipeline H1, between described oil-feed unit P and described the first oil-in A, be provided with the first in-line H2, between described oil-feed unit P and described the second oil-in B, be provided with the second in-line H3, between described fuel-displaced pipeline H1 and described the first in-line H2, be provided with the first bypass line H4, between described the first bypass line H4 and the second in-line, H2 is provided with the second bypass line H5;
Wherein, the junction of fuel-displaced pipeline H1 and the first bypass line H4 is TC; the junction of the first bypass line H4 and the second bypass line H5 is CA; the junction of the first bypass line H4 and the first in-line H2 is AP; the junction of the first in-line H2 and the second in-line H3 is PA, and the junction of the second bypass line H5 and the second in-line H3 is PB;
Wherein, between fuel-displaced unit T and TC, be provided with hydraulic directional valve V1, between CA and AP, be provided with hydraulic directional valve V2, between CA and PB, be provided with hydraulic directional valve V3, between AP and PA, be provided with hydraulic directional valve V4, between PA and PB, be provided with hydraulic directional valve V5.
Native system mainly utilizes the principle of speed (V)=flow (Q)/sectional area (S) and differential principle to realize, and wherein the inner piston area of crossing oil typed piston bar is S1, and the area of inner oil-through hole is S2, S1>S2.
Specific works principle is as follows: work as V4, V1 valve is opened, V2, and V3, when V5 valve cuts out, hydraulic oil enters oil cylinder back cavity 22 by A mouth, and the hydraulic oil of oil cylinder ante-chamber 21 flows out and directly gets back to T mouth (fuel-displaced unit) from C mouth, and piston rod 1 travels forward, and this is a step velocity; Work as V5, V1 valve is opened, V2, V4, when V5 valve cuts out, hydraulic oil flow to piston rod 1 endoporus 11 by B mouth through accelerating beam hanger 3, promote piston rod 1 and travel forward, the hydraulic oil of oil cylinder ante-chamber 21 is directly got back to T mouth (fuel-displaced unit) from the outflow of C mouth, and this is two step velocitys; Work as V1, V4, V5 valve is opened, V2, when V3 valve cuts out, hydraulic oil is simultaneously from A, and B mouth flows into respectively oil cylinder back cavity 22 and piston rod 1 inside, promote piston rod 1 simultaneously and travel forward, the hydraulic oil of oil cylinder ante-chamber 21 flows out and directly gets back to T mouth (fuel-displaced unit) from C mouth, and this is three step velocitys; Work as V2, V4 valve is opened, V1, V3, when V5 valve cuts out, hydraulic oil enters oil cylinder back cavity 22 by A mouth, and the hydraulic oil of oil cylinder ante-chamber 21 flows out and gets back to oil cylinder back cavity 22 by A mouth from C mouth, two strands of hydraulic oil promote piston rod 1 simultaneously and travel forward, and form one-level differential circuit, and this is level Four speed; Work as V3, V4 valve is opened, V1, V3, when V5 valve cuts out, hydraulic oil enters oil cylinder back cavity 22 by A mouth, the hydraulic oil of oil cylinder ante-chamber 21 flows out by B mouth and flow to piston rod 1 endoporus 11 through accelerating beam hanger 3 from C mouth, two strands of hydraulic oil promote piston rod 1 simultaneously and travel forward, and form secondary differential circuit, and this is Pyatyi speed; Work as V2, V5 valve is opened, V1, V3, when V4 valve cuts out, hydraulic oil flow to piston rod 1 endoporus 11 by B mouth through accelerating beam hanger 3, the hydraulic oil of oil cylinder ante-chamber 21 flows out and gets back to oil cylinder back cavity 22 by A mouth from C mouth, two strands of hydraulic oil promote piston rod 1 simultaneously and travel forward, and form three grades of differential circuits, and this is six step velocitys; Work as V3, V5 valve is opened, V1, V2, when V4 valve cuts out, hydraulic oil flow to piston rod 1 endoporus 11 by B mouth through accelerating beam hanger 3, the hydraulic oil of oil cylinder ante-chamber 21 flows out and gets back to B mouth from C mouth, two strands of hydraulic oil promote respectively piston rod 1 simultaneously and travel forward, and form level Four differential circuit, and this is seven step velocitys; Work as V2, V3, V4 valve is opened, V1, when V5 valve cuts out, hydraulic oil enters oil cylinder back cavity 22 by A mouth, the hydraulic oil of oil cylinder ante-chamber 21 flows out respectively and through accelerating beam hanger 3, flow to piston rod 1 endoporus 11 by A mouth inflow oil cylinder back cavity 22 and B mouth from C mouth, two strands of hydraulic oil promote respectively piston rod 1 simultaneously and travel forward, and form Pyatyi differential circuit, and this is eight step velocitys; Work as V2, V3, V5 valve is opened, and V1, when V4 valve cuts out, hydraulic oil flow to piston rod 1 endoporus 11 by B mouth through accelerating beam hanger 3, the hydraulic oil of oil cylinder ante-chamber 21 flows out respectively and flows into oil cylinder back cavity 22 and B mouth by A mouth from C mouth, through accelerating beam hanger 3, flows to 11, two strands of hydraulic oil of piston rod 1 endoporus and promotes piston rod 1 simultaneously and travel forward, form six grades of differential circuits, this is nine step velocitys; Work as V2, V4, V5 valve is opened, V1, when V3 valve cuts out, hydraulic oil is flowed into oil cylinder back cavity 22 and is flow to piston rod 1 endoporus 11 through accelerating beam hanger 3 by A mouth and B mouth respectively, the hydraulic oil of oil cylinder ante-chamber 21 flows out by A mouth and flows into oil cylinder back cavity 22 from C mouth, three strands of oil promote piston rod 1 simultaneously and travel forward, and form seven grades of differential circuits, and this is ten step velocitys; Work as V3, V4, V5 valve is opened, V1, when V2 valve cuts out, hydraulic oil is flowed into oil cylinder back cavity 22 and is flow to piston rod 1 endoporus 11 through accelerating beam hanger 3 by A mouth and B mouth respectively, the hydraulic oil of oil cylinder ante-chamber 21 flows out by B mouth and flows into and accelerated beam hanger 3 from C mouth, three strands of oil promote piston rod 1 simultaneously and travel forward, and form eight grades of differential circuits, and this is 11 step velocitys; Work as V2, V3, V4, V5 valve is opened, and when V1 valve cuts out, hydraulic oil is flowed into oil cylinder back cavity 22 and flow to piston rod 1 endoporus 11 through accelerating beam hanger 3 by A mouth and B mouth respectively, the hydraulic oil of oil cylinder ante-chamber 21 flows out respectively and through accelerating beam hanger 3, flow to piston rod 1 endoporus 11 by A mouth inflow oil cylinder back cavity 22 and B mouth from C mouth, four strands of oil promote piston rod 11 simultaneously and travel forward, and form nine grades of differential circuits, and this is 12 step velocitys.
This system can be selected arbitrarily some or multiple speed according to device requirement, also can in certain section of stroke, switch respectively according to demand the flow direction that hydraulic directional valve controls hydraulic pressure to obtain multiple speed.This invention is compared and is obtained the flow of the increasing system oil pump of taking at a high speed in the past or reduce corresponding piston and diameter of cylinder (reducing sectional area), has following advantage: 1, energy-conservation, efficient.2, on the basis of particular cylinder block diameter, can conveniently obtain at a high speed, than single differential circuit in the past, have more speed to select, to meet client's multiple rate request.
Above embodiment is only for illustrating the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.

Claims (2)

1. a multistage speed injection system, is characterized in that, described injection system comprises:
Cylinder body, it comprises oil cylinder ante-chamber and oil cylinder back cavity, and described oil cylinder ante-chamber is provided with oil-out, and described oil cylinder back cavity is provided with the first oil-in and the second oil-in;
Piston rod, it is located in described cylinder body, and described piston rod inside is provided with endoporus, and the radial section of the piston of described piston rod amasss as S1, and the radial section of endoporus amasss as S2, S1>S2;
Accelerated beam hanger, described piston rod inside is located in its one end, and the described beam hanger inside of accelerating is provided with oil-through hole, and described oil-through hole is communicated with described endoporus;
Oil feed line system, it is for to described cylinder body supply hydraulic fluid.
2. injection system as claimed in claim 1, it is characterized in that, described oil feed line system comprises: fuel-displaced unit, oil-feed unit, between described fuel-displaced unit and described oil-out, be provided with fuel-displaced pipeline, between described oil-feed unit and described the first oil-in, be provided with the first in-line, between described oil-feed unit and described the second oil-in, be provided with the second in-line, between described fuel-displaced pipeline and described the first in-line, be provided with the first bypass line, between described the first bypass line and the second in-line, be provided with the second bypass line;
Wherein, the junction of fuel-displaced pipeline and the first bypass line is TC; the junction of the first bypass line and the second bypass line is CA; the junction of the first bypass line and the first in-line is AP; the junction of the first in-line and the second in-line is PA, and the junction of the second bypass line and the second in-line is PB;
Wherein, between fuel-displaced unit and TC, be provided with hydraulic directional valve V1, between CA and AP, be provided with hydraulic directional valve V2, between CA and PB, be provided with hydraulic directional valve V3, between AP and PA, be provided with hydraulic directional valve V4, between PA and PB, be provided with hydraulic directional valve V5.
CN201310726128.1A 2013-12-25 2013-12-25 Multi-stage speed injection system Pending CN103736959A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026541A (en) * 2019-04-15 2019-07-19 中国兵器工业第五九研究所 The vacuum melting of ultra-thin-wall high-air-tightness Al-alloy parts, pressure changeable coagulation forming method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10337762A (en) * 1997-06-06 1998-12-22 Toshiba Mach Co Ltd Method for controlling injection speed of injection moldilng machine
CN102773451A (en) * 2012-07-19 2012-11-14 湖州机床厂有限公司 Quick pressurizing injection device of hydraulic press
CN202943234U (en) * 2012-11-13 2013-05-22 蚌埠市华艺压铸机制造有限责任公司 Casting machine differential action hydraulic mechanism
CN203843131U (en) * 2013-12-25 2014-09-24 苏州三基铸造装备股份有限公司 Multistage-speed injection system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10337762A (en) * 1997-06-06 1998-12-22 Toshiba Mach Co Ltd Method for controlling injection speed of injection moldilng machine
CN102773451A (en) * 2012-07-19 2012-11-14 湖州机床厂有限公司 Quick pressurizing injection device of hydraulic press
CN202943234U (en) * 2012-11-13 2013-05-22 蚌埠市华艺压铸机制造有限责任公司 Casting machine differential action hydraulic mechanism
CN203843131U (en) * 2013-12-25 2014-09-24 苏州三基铸造装备股份有限公司 Multistage-speed injection system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110026541A (en) * 2019-04-15 2019-07-19 中国兵器工业第五九研究所 The vacuum melting of ultra-thin-wall high-air-tightness Al-alloy parts, pressure changeable coagulation forming method

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Application publication date: 20140423