CN104196813B - A kind of quick die cylinder for high speed die casting machine - Google Patents
A kind of quick die cylinder for high speed die casting machine Download PDFInfo
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- CN104196813B CN104196813B CN201410358090.1A CN201410358090A CN104196813B CN 104196813 B CN104196813 B CN 104196813B CN 201410358090 A CN201410358090 A CN 201410358090A CN 104196813 B CN104196813 B CN 104196813B
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- cylinder
- closing cylinder
- piston rod
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- casting machine
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Abstract
The invention discloses a kind of quick die cylinder for high speed die casting machine, including closing cylinder bonnet (1), closing cylinder cylinder barrel (2), closing cylinder protecgulum (3), closing cylinder piston (4), closing cylinder piston rod (5), fuel feed hole (6) and, spill port (7), offer to insert the cavity (9) of rapid piston rod (8) in described closing cylinder piston rod (5), axially disposed through hole (10) it is provided with in rapid piston rod (8), and the other end of rapid piston rod (8) sequentially passes through closing cylinder piston (4) and makes through hole (10) be connected with the working connection of hydraulic system with closing cylinder bonnet (1), so that hydraulic system promotes closing cylinder piston rod (5) to advance by through hole (9) to cavity (9) fuel feeding.Closure pressing speed can be improved more than 60% by arranging rapid piston rod in closing cylinder piston rod by the present invention, and the diameter simultaneously improving closing cylinder piston rod improves the speed of die sinking.
Description
Technical field
The present invention relates to oil cylinder technical field, the quick die cylinder for high speed die casting machine that a kind of closure pressing speed is fast and die sinking efficiency is high.
Background technology
Nowadays die casting machine all uses common oil cylinder, the structure of this kind of oil cylinder is as shown in Figure 1, its parts include closing cylinder bonnet 1, closing cylinder cylinder barrel 2, closing cylinder protecgulum 3, closing cylinder piston 4 and closing cylinder piston rod 5, the two ends of closing cylinder cylinder barrel 2 are separately fixed at closing cylinder bonnet 1 and closing cylinder protecgulum 3, in closing cylinder piston 4 is arranged on closing cylinder cylinder barrel 2 and the fixing end of one end of closing cylinder piston rod 5 is arranged on closing cylinder piston 4, additionally it is provided with on closing cylinder bonnet 1 on fuel feed hole 6, closing cylinder protecgulum 3 and is provided with spill port 7.During use, by fuel feed hole 6 oil-feed, spill port 7 oil return, promote closing cylinder piston rod 5 to advance, promote moving platen matched moulds by toggle.When closing cylinder piston rod 5 retreats, by spill port 7 oil-feed, fuel feed hole 6 oil return, promote closing cylinder piston rod 5 to retreat, moving platen is retracted die sinking.But owing to die casting machine simply needs the biggest clamp force at the final stage stroke of oil cylinder stroke, if all stroke all uses the oil cylinder of large diameter, thus waste the time of matched moulds.
Summary of the invention
The problem that it is an object of the invention to exist for prior art, it is provided that the quick die cylinder for high speed die casting machine that a kind of closure pressing speed is fast and die sinking efficiency is high.
It is an object of the invention to solve by the following technical programs:
A kind of quick die cylinder for high speed die casting machine, including closing cylinder bonnet, closing cylinder cylinder barrel, closing cylinder protecgulum, closing cylinder piston, closing cylinder piston rod and be separately positioned on the fuel feed hole on closing cylinder bonnet and the spill port on closing cylinder protecgulum, offer to insert the cavity of rapid piston rod in it is characterized in that described closing cylinder piston rod, axially disposed through hole it is provided with in rapid piston rod, and the other end of rapid piston rod sequentially passes through closing cylinder piston and makes through hole be connected with the working connection of hydraulic system with closing cylinder bonnet, so that hydraulic system promotes closing cylinder piston rod to advance by through hole to cavity fuel feeding.
The external diameter of described closing cylinder piston rod is 3～5:1 with the ratio of the external diameter of rapid piston rod, and the internal diameter of the external diameter of rapid piston rod and cavity matches.
Described closing cylinder cylinder barrel includes outer cylinder and inner cylinder tube, one end of inner cylinder tube is embedded in the inner cylinder tube in the inner chamber of closing cylinder bonnet and at this end and is equipped with closing cylinder piston, and the other end of inner cylinder tube is embedded at and is arranged in the big piston cavity of the closing cylinder at closing cylinder protecgulum；Outer cylinder is nested with on the outer wall of the big piston of closing cylinder and one end of outer cylinder is fixed on closing cylinder protecgulum, and the other end of outer cylinder is fixed on intermediate hsg, and intermediate hsg is nested with on the outer wall of inner cylinder tube.
One end of described closing cylinder piston rod is fixed on closing cylinder piston.
It is provided with, between the big piston of described closing cylinder and the relative end face of closing cylinder protecgulum, the gap being connected with spill port.
There is between the big piston of described closing cylinder and the relative end face of intermediate hsg a certain distance move for the big piston of closing cylinder.
Described intermediate hsg is provided with steam vent.
Being provided with threeway at described fuel feed hole, the valve of threeway pipeline with the back cavity of closing cylinder bonnet, the working connection of hydraulic system and fuel tank respectively is connected, and is respectively equipped with electro-hydraulic reversing valve and hydraulic control one-way valve on the pipeline of the working connection of hydraulic system and fuel tank.
Described spill port is connected with the working connection of hydraulic system.
The end of described rapid piston rod is fixed on closing cylinder bonnet by piston rod snap ring.
The present invention has the following advantages compared to existing technology:
The present invention is by adding a rapid piston rod in closing cylinder piston rod, owing to the diameter of bar footpath, the aperture of through hole and the cavity of rapid piston rod is the least, therefore the same oil pressure provided in hydraulic system, promote closing cylinder piston and closing cylinder piston rod to advance by through hole oil-feed, closure pressing speed can be improved more than 60%.
The present invention increases mould opening force by increasing the diameter of closing cylinder piston rod, improves the speed of die sinking, for coordinating this structure, closing cylinder cylinder barrel is divided into outer cylinder, inner cylinder tube by this die cylinder, and and then increase cylinder diameter closing cylinder big piston bigger than closing cylinder piston and carry out outer cylinder, inner cylinder tube matches, enough mould opening forces are provided, to improve the speed of die sinking by the big piston of closing cylinder that oil pressure actuated plane of constraint is bigger.
Accompanying drawing explanation
Accompanying drawing 1 is common die cylinder structural representation in prior art；
Accompanying drawing 2 is the quick die cylinder structural representation for high speed die casting machine of the present invention；
Accompanying drawing 3 is the HYDRAULIC CONTROL SYSTEM schematic diagram of the present invention.
Wherein: 1 closing cylinder bonnet；2 closing cylinder cylinder barrels；21 outer cylinders；22 inner cylinder tubes；3 closing cylinder protecgulums；4 closing cylinder pistons；5 closing cylinder piston rods；6 fuel feed holes；7 spill ports；8 rapid piston rod；9 cavitys；10 through holes；The 11 big pistons of closing cylinder；12 intermediate hsgs；13 steam vents；14 piston rod snap rings；15 fuel tanks；16E electro-hydraulic reversing valve；NG16 inserted valve；6D solenoid directional control valve；NG20 hydraulic control one-way valve.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
As shown in Figure 2: a kind of quick die cylinder for high speed die casting machine, including closing cylinder bonnet 1, closing cylinder cylinder barrel 2, closing cylinder protecgulum 3, closing cylinder piston 4, spill port 7 on closing cylinder piston rod 5 and the fuel feed hole 6 being separately positioned on closing cylinder bonnet 1 and closing cylinder protecgulum 3, it is provided with threeway at fuel feed hole 6, the valve of threeway respectively with the back cavity of closing cylinder bonnet 1, the working connection of hydraulic system is connected with the pipeline of fuel tank 15, and on the pipeline of the working connection of hydraulic system and fuel tank 15, it is respectively equipped with electro-hydraulic reversing valve 16E and hydraulic control one-way valve NG20, spill port 7 is connected with the working connection of hydraulic system also through electro-hydraulic reversing valve 16E.For improving closure pressing speed, in closing cylinder piston rod 5, offer to insert the cavity 9 of rapid piston rod 8, the external diameter of closing cylinder piston rod 5 is 3～5:1 with the ratio of the external diameter of rapid piston rod 8, and the internal diameter of the external diameter of rapid piston rod 8 and cavity 9 matches, axially disposed through hole 10 it is provided with in rapid piston rod 8, and the other end of rapid piston rod 8 sequentially passes through closing cylinder piston 4 and makes through hole 10 be connected with the working connection of hydraulic system with closing cylinder bonnet 1, so that hydraulic system promotes closing cylinder piston rod 5 to advance by through hole 9 to cavity 9 fuel feeding, the end of rapid piston rod 8 is fixed on closing cylinder bonnet 1 by piston rod snap ring 14.
For increasing mould opening force, the speed of raising die sinking, closing cylinder cylinder barrel 2 is divided into outer cylinder 21 and inner cylinder tube 22, one end of inner cylinder tube 22 is embedded in the inner cylinder tube 22 in the inner chamber of closing cylinder bonnet 1 and at this end and is equipped with closing cylinder piston 4, one end of closing cylinder piston rod 5 is fixed on closing cylinder piston 4, and the other end of inner cylinder tube 22 is embedded at and is arranged in big piston 11 inner chamber of the closing cylinder at closing cylinder protecgulum 3；Outer cylinder 21 is nested with on the outer wall of the big piston of closing cylinder 11 and one end of outer cylinder 21 is fixed on closing cylinder protecgulum 3, and the other end of outer cylinder 21 is fixed on intermediate hsg 12, and intermediate hsg 12 is nested with on the outer wall of inner cylinder tube 22；It should be noted that and be provided with, between the end face that the big piston of closing cylinder 11 and closing cylinder protecgulum 3 are relative, the gap being connected with spill port 7, there is between the end face that the big piston of closing cylinder 11 and intermediate hsg 12 are relative a certain distance move for the big piston of closing cylinder 11, and intermediate hsg 12 is provided with the space air-breathing or aerofluxus that when steam vent 13 matched in the space constituted with this distance moves for the big piston of closing cylinder 11, this distance is constituted.
The quick die cylinder hydraulic principle figure of the present invention is as shown in Figure 3: hydraulic system includes electro-hydraulic reversing valve 16E and inserted valve NG16, solenoid directional control valve 6D and hydraulic control one-way valve NG20, the pressure oil pipe of hydraulic system is connected to supply pressure oil with the P hole of electro-hydraulic reversing valve 16E, pressure oil is through the T hole oil sump tank of electro-hydraulic reversing valve 16E, and the A hole of electro-hydraulic reversing valve 16E is connected with the through hole 10 of quick die cylinder so that hydraulic system provides pressure oil to the cavity 9 of rapid piston rod 8；The A hole of electro-hydraulic reversing valve 16E is with the fuel feed hole 6 of quick die cylinder by being connected with the pipeline of inserted valve NG16, and inserted valve NG16 is provided with the solenoid directional control valve 6D controlling its switch；Additionally fuel feed hole 6 is with fuel tank 15 by being connected with the pipeline of hydraulic control one-way valve NG20, and the control oil pipe road simultaneously arranging hydraulic control one-way valve NG20 is also connected with the B hole of electro-hydraulic reversing valve 16E；The B hole of electro-hydraulic reversing valve 16E is connected with fuel feeding or oil return with the spill port 7 of quick die cylinder by pipeline.
nullWhen the quick die cylinder of the present invention uses，In hydraulic system, the electric magnet S1 on electro-hydraulic reversing valve 16E obtains electric，Working connection passes through the through hole 10 in rapid piston rod 8 to cavity 9 fuel feeding，Under the effect of oil pressure，Closing cylinder piston 4 drives closing cylinder piston rod 5 to fast forward through，Now the electric magnet S3 on solenoid directional control valve 6D must not make inserted valve NG16 be closed by electricity，Oil is drawn onto the back cavity of closing cylinder bonnet 1 through hydraulic control one-way valve NG20 and fuel feed hole 6 from fuel tank 15，When closing cylinder piston 4 stroke there remains about 50mm，Electric magnet S1 on electro-hydraulic reversing valve 16E obtain the electric magnet S3 on electric and solenoid directional control valve 6D also electric inserted valve NG16 is opened，The working connection allowing hydraulic system carrys out supply pressure oil by fuel feed hole 6 provides the clamp force of last stroke.When die sinking, electric magnet S1 on electro-hydraulic reversing valve 16E and the electric magnet S3 on solenoid directional control valve 6D must not be electric, electric magnet S2 on electro-hydraulic reversing valve 16E obtains electric, the gap fuel feeding that the working connection of hydraulic system is consisted of to the end face that closing cylinder protecgulum 3 and closing cylinder big piston 11 is relative spill port 7, now hydraulic control one-way valve NG20 is opened, oil in the back cavity of closing cylinder bonnet 1 is quickly returning to fuel tank 15 through hydraulic control one-way valve NG20, under the effect of oil pressure, the big piston of closing cylinder 11 promotes inner cylinder body 21 to return and and then drives closing cylinder piston 4 and closing cylinder piston rod 5 to return matched moulds to set out position.
The present invention is by adding a rapid piston rod 8 in closing cylinder piston rod 5, owing to the diameter of bar footpath, the aperture of through hole 10 and the cavity 9 of rapid piston rod 8 is the least, therefore the same oil pressure provided in hydraulic system, promote closing cylinder piston 4 and closing cylinder piston rod 5 to advance by through hole 10 oil-feed, closure pressing speed can be improved more than 60%；Increase mould opening force additionally by the diameter increasing closing cylinder piston rod 5, improve the speed of die sinking, for coordinating this structure, closing cylinder cylinder barrel 2 is divided into outer cylinder 21, inner cylinder tube 22 by this die cylinder, and and then increase cylinder diameter closing cylinder big piston 11 bigger than closing cylinder piston 4 and carry out outer cylinder 21, inner cylinder tube 22 matches, enough mould opening forces are provided, to improve the speed of die sinking by the big piston of closing cylinder 11 that oil pressure actuated plane of constraint is bigger.The quick die cylinder of the present invention is convenient to use, easy to maintenance and length in service life, applied widely, suitably promotes the use of.
Above example is only the technological thought that the present invention is described, it is impossible to limiting protection scope of the present invention with this, every technological thought proposed according to the present invention, any change done on the basis of technical scheme, within each falling within scope；The technology that the present invention is not directed to all can be realized by prior art.
Claims (9)
- null1. the quick die cylinder for high speed die casting machine，Including closing cylinder bonnet (1)、Closing cylinder cylinder barrel (2)、Closing cylinder protecgulum (3)、Closing cylinder piston (4)、Spill port (7) on closing cylinder piston rod (5) and the fuel feed hole (6) being separately positioned on closing cylinder bonnet (1) and closing cylinder protecgulum (3)，Offer to insert the cavity (9) of rapid piston rod (8) in it is characterized in that described closing cylinder piston rod (5)，Axially disposed through hole (10) it is provided with in rapid piston rod (8)，And the other end of rapid piston rod (8) sequentially passes through closing cylinder piston (4) and makes through hole (10) be connected with the working connection of hydraulic system with closing cylinder bonnet (1)，So that hydraulic system promotes closing cylinder piston rod (5) to advance by through hole (9) to cavity (9) fuel feeding；Described closing cylinder cylinder barrel (2) includes outer cylinder (21) and inner cylinder tube (22), one end of inner cylinder tube (22) is embedded in the inner cylinder tube (22) in the inner chamber of closing cylinder bonnet (1) and at this end and is equipped with closing cylinder piston (4), and the other end of inner cylinder tube (22) is embedded in closing cylinder big piston (11) inner chamber being arranged on closing cylinder protecgulum (3) place；Outer cylinder (21) is nested with on the outer wall of the big piston of closing cylinder (11) and one end of outer cylinder (21) is fixed on closing cylinder protecgulum (3), the other end of outer cylinder (21) is fixed on intermediate hsg (12), and intermediate hsg (12) is nested with on the outer wall of inner cylinder tube (22).
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterized in that the external diameter of described closing cylinder piston rod (5) is 3～5:1 with the ratio of the external diameter of rapid piston rod (8), and the internal diameter of the external diameter of rapid piston rod (8) and cavity (9) matches.
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterised in that one end of described closing cylinder piston rod (5) is fixed on closing cylinder piston (4).
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterised in that be provided with, between the big piston of described closing cylinder (11) and the relative end face of closing cylinder protecgulum (3), the gap being connected with spill port (7).
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterised in that there is a certain distance mobile for the big piston of closing cylinder (11) between the big piston of described closing cylinder (11) and the relative end face of intermediate hsg (12).
- The most according to claim 1 or 5 for the quick die cylinder of high speed die casting machine, it is characterised in that described intermediate hsg (12) is provided with steam vent (13).
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterized in that described fuel feed hole (6) place is provided with threeway, the valve of threeway pipeline with the back cavity of closing cylinder bonnet (1), the working connection of hydraulic system and fuel tank (15) respectively is connected, and is respectively equipped with electro-hydraulic reversing valve (16E) and hydraulic control one-way valve (NG20) on the pipeline of the working connection of hydraulic system and fuel tank (15).
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterised in that described spill port (7) is connected with the working connection of hydraulic system.
- Quick die cylinder for high speed die casting machine the most according to claim 1, it is characterised in that the end of described rapid piston rod (8) is fixed on closing cylinder bonnet (1) by piston rod snap ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358090.1A CN104196813B (en) | 2014-07-25 | 2014-07-25 | A kind of quick die cylinder for high speed die casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410358090.1A CN104196813B (en) | 2014-07-25 | 2014-07-25 | A kind of quick die cylinder for high speed die casting machine |
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| Publication Number | Publication Date |
|---|---|
| CN104196813A CN104196813A (en) | 2014-12-10 |
| CN104196813B true CN104196813B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410358090.1A Expired - Fee Related CN104196813B (en) | 2014-07-25 | 2014-07-25 | A kind of quick die cylinder for high speed die casting machine |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378913B (en) * | 2016-11-22 | 2019-03-08 | 圣邦集团有限公司 | A kind of clamping mechanism |
| CN106593988B (en) * | 2017-01-25 | 2018-09-25 | 宁波海天金属成型设备有限公司 | A kind of oil-returning structure of injection oil cylinder |
| CN108443261A (en) * | 2018-05-18 | 2018-08-24 | 机械科学研究总院海西（福建）分院有限公司 | A kind of die casting machine hydraulic cylinder nested structure |
| CN112483508B (en) * | 2020-12-09 | 2023-06-30 | 中船重工中南装备有限责任公司 | Hydraulic cylinder capable of switching working modes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86204016U (en) * | 1986-08-10 | 1987-04-15 | 宁波科教机械厂 | Direct pressure differential die-locking mechanism with two die plank and multi-cylinder |
| DE4209392C2 (en) * | 1992-03-23 | 1995-10-12 | Krauss Maffei Ag | Mold closing device for an injection molding machine |
| CN2653196Y (en) * | 2003-09-22 | 2004-11-03 | 武汉大学 | Mold closing composite oil cylinder for die casting machine |
| CN202883535U (en) * | 2012-06-14 | 2013-04-17 | 东华机械有限公司 | Locked mode oil cylinder structure of plastic molding machine |
| CN203962545U (en) * | 2014-07-25 | 2014-11-26 | 江苏佳晨华科机械技术研究院有限公司 | A kind of quick die cylinder for high speed die casting machine |
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- 2014-07-25 CN CN201410358090.1A patent/CN104196813B/en not_active Expired - Fee Related
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| CN104196813A (en) | 2014-12-10 |
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Granted publication date: 20160921 Termination date: 20180725 |