CN103433437A - Vertical parting flaskless shoot-squeeze clay-bonded sand automatic molding machine - Google Patents
Vertical parting flaskless shoot-squeeze clay-bonded sand automatic molding machine Download PDFInfo
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- CN103433437A CN103433437A CN2012105031651A CN201210503165A CN103433437A CN 103433437 A CN103433437 A CN 103433437A CN 2012105031651 A CN2012105031651 A CN 2012105031651A CN 201210503165 A CN201210503165 A CN 201210503165A CN 103433437 A CN103433437 A CN 103433437A
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Abstract
The invention relates to a vertical parting flaskless shoot-squeeze clay-bonded sand automatic molding machine. The molding machine comprises a machine seat provided with a reverse pressure plate swing linkage mechanism, a quick sand-shooting system and a quick prefill valve bank thereon, wherein high-pressure sealing structures are adopted by the reverse pressure plate swing linkage mechanism and the quick sand-shooting system, so that the molding machine is free from sand dust escape in the whole molding process, is high in molding speed, accurate in location and high in mold assembly accuracy, and has the characteristics of efficiency, energy conservation and environment protection. Meanwhile, the sand molds manufactured by the molding machine have high compactness and are uniform, and the castings poured with the sand molds have low rejection rate, beautiful appearances and high geometric dimension accuracy.
Description
Technical field
The present invention relates to a kind of Casting Equipment of Machine, be specially a kind of fully automatic high-speed vertical parting molding machine that adopts the driven by servomotor hydraulic control technology.Be mainly used in the making of foundry clay sand sand mold.
Background technology
Clay-bonded sand metal casting moulding is one of main production method of machine components blank, is widely used in machine building industry, and occupies critical role.
Wherein the making of clay-bonded sand sand mold is one of key link in the castings production technical process, the making quality of sand mold is directly connected to quality and the yield rate of foundry goods, make the sand mold of high-quality to improving casting quality, reduce casting cost and play vital effect, developed countries has been developed all kinds of high-end automatic molding machines for this formative technology, this class machinery has advantages of that production efficiency is high, steady quality, energy-conserving and environment-protective, but because of it, prices are rather stiff, maintenance difficulties is large, in common customer, is difficult to promote the use of.The most domestic foundry enterprise is still using technique jolt-squeeze machine or squeeze molding machine simple, backward in technique to carry out the sand mold making, sand-mould quality poor stability, the equipment running noises made are high, labour intensity is large, production efficiency is low, the environmental pollution weight, domestic casting industry is badly in need of high-end automatic molding machine and is replaced the existing mo(u)lding equipment fallen behind.
Summary of the invention
The present invention is directed to the deficiency on above-mentioned prior art, designed a kind of vertical-parting box-less shoot squeeze automatic molding machine for clay sand.Solved the sealing that the vertical-parting box-less shoot squeeze automatic molding machine for clay sand of prior art exists poor, the deficiency that yield rate is low.
A kind of vertical-parting box-less shoot squeeze automatic molding machine for clay sand of the present invention, comprise by fuel tank, the support that base forms, the mold cavities chamber is installed successively on support, add sand and penetrate sand mechanism, moulding pushes away type mechanism, sand mold pressure holding mechanism, die cavity switch switching mechanism and hydraulic system, air-channel system, centralized lubricating system and electric control system, be provided with back-pressure plate swing link mechanism on described automatic moulding machine, fast rapid fire sand system and quick liquid filling valve group, described back-pressure plate swing link mechanism is connected with swingable back-pressure plate, the sealed sides that it is characterized in that described swingable back-pressure plate comprises inner seal cover plate and outside seal cover board, described inner seal cover plate and outside seal cover board are by O shape elastic sealing plunger piston, Ω shape sealing ring is fixed on cover plate and back-pressure plate body, faying face at cover plate and back-pressure plate body is manufactured with a plurality of ventilation air flues, described fast rapid fire sand system comprises that penetrating abrasive cone shape takes over body and be fixed on the sand hopper of penetrating on abrasive cone shape adapter body, be equipped with and penetrate the sand Pneumatic valve at sand hopper middle part, the knockout valve is equipped with at top, described knockout valve is equipped with the hopper air bleeding valve, the sand-falling port side of described knockout valve is supported by valve cover, sealing gland, the clamping of sealing support ring, the W shape sealing ring that polyurethane material is made is fixed, described sealing ring is fitted on the spherical flashboard of watt shape, and leave gap between W shape sealing ring and the spherical flashboard of watt shape, be manufactured with passage on valve cover, after injecting air pressure, air pressure is held the outside expansion of W shape sealing ring tightly watt shape spherical flashboard and is sealed, to avoid sand grains generation external leakage in sandbox, described quick liquid filling valve group comprises the prefill valve main valve plug, prefill valve guide spool, prefill valve valve body, prefill valve spring and proportional pilot valve, wherein prefill valve guide spool and prefill valve valve body composition servo-hydraulic are controlled little volume annular seal space, carried out the opening speed of SERVO CONTROL prefill valve main valve plug by proportional pilot valve, promote prefill valve guide spool by the prefill valve spring while closing and discharge fast the liquid of controlling annular seal space, realize quick closedown.
A kind of vertical-parting box-less shoot squeeze automatic molding machine for clay sand of the present invention has adopted the swollen compact form sealing device of Novel pressure on the swingable back-pressure plate of die cavity.Make sealed expansion by injecting air pressure promotion plunger, can improve sealing reliability.Increase the service life.Top knockout valve has adopted Pneumatic-expansion sand-falling port potted component and the spherical flashboard of watt shape, injecting air pressure after valve closing makes the potted component expansion hold the spherical flashboard of watt shape tightly, improve sealing reliability, discharge the pressurized seal component shrinkage during valve opening, make to form gap between potted component and the spherical flashboard of watt shape, guarantee not occur the potted component friction damage.The moulding overall process of this moulding machine leaks without sand dust, and moulding speed is fast, accurate positioning, mould assembly precision are high, has characteristics energy-efficient, environmental protection.The sand mold compactability of this moulding machine made is high and even simultaneously, and the casting wasted product rate of casting out with it is low, good looking appearance, and geometric accuracy is high.
The accompanying drawing explanation
Fig. 1 is that lateral junction composition-die cavity of the present invention is in opening;
Fig. 2 is vertical structure figure of the present invention;
Fig. 3 is the quick liquid filling valve detail drawing;
Fig. 4 is swingable back-pressure plate detail drawing;
Fig. 5 is the A section enlarged diagram of Fig. 4;
Fig. 6 is knockout valve detail drawing;
Fig. 7 is the B section enlarged diagram of Fig. 6.
1-back-pressure plate motion arm-tie in figure; 2-back-pressure plate motion pull bar; 3-bracing frame one; The anti-pressure plate cylinder of 4-; The anti-pressure plate cylinder displacement transducer of 5-; 6-quick liquid filling valve group; 7-pressure plate oil cylinder displacement transducer; The 8-supporting traverse; 9-gas storage bag; 10-bracing frame two; 11-pressure plate oil cylinder; 12-penetrates the sand Pneumatic valve; 13-hopper air bleeding valve; 14-knockout valve; 15-sand hopper; 16-penetrates abrasive cone shape and takes over body; 17-pushes away type pressure plate assembly; 18-moulding chamber assembly; The swingable back-pressure plate of 19-; 20-back-pressure plate motion support frame; 21-back-pressure plate swing link mechanism; The 22-support; 23-servomotor pump assembly; The 24-watt of spherical flashboard of shape; The 25-sealing gland; 26-W shape sealing ring; The 27-valve cover; 28-seals support ring; 29-O shape elastic sealing plunger piston; 30-Ω shape sealing ring; 31-inner seal cover plate; 32-outside seal cover board; The 33-cover plate; 34-back-pressure plate body; 35-prefill valve main valve plug; 36-prefill valve guide spool; 37-prefill valve valve body; 38-prefill valve spring; The 39-proportional pilot valve.
The specific embodiment
Referring to accompanying drawing 1-7, invention main points of the present invention are elaborated.
Shown in Fig. 1: support 22 carries out machine finishing after all using medium plate and template welding, has formed the very high mechanism of high strength, flatness basis is installed.Be fixed with moulding chamber assembly 18, bracing frame 1, bracing frame 2 10 on support, be fixed with on moulding chamber assembly 18 and penetrate abrasive cone shape adapter body 16, anti-pressure plate cylinder 4 and pressure plate oil cylinder 11 are arranged on bracing frame 1 and moulding chamber assembly 18, pressure plate oil cylinder 11 bar heads fixedly push away type pressure plate assembly 17, be equipped with four back-pressure plate motion pull bars 2 on bracing frame 1, bracing frame 2 10, moulding chamber assembly 18, back-pressure plate motion support frame 20 is contained on back-pressure plate motion pull bar 2, swingable back-pressure plate 19 is housed on back-pressure plate motion support frame 20.By moulding chamber assembly 18, push away type pressure plate assembly 17, penetrate that abrasive cone shape is taken over body 16, swingable back-pressure plate 19 forms a sand mold moulding closed chamber.
At bracing frame 1, bracing frame 2 10, penetrate abrasive cone shape and take on body 16 and be fixed with two supporting traverses 8.Quick liquid filling valve group 6 is loaded in the middle of anti-pressure plate cylinder 4 and pressure plate oil cylinder 11.By servomotor pump assembly 23(figure bis-), quick liquid filling valve group 6, anti-pressure plate cylinder 4, pressure plate oil cylinder 11 and hydraulic system form close chamber, compacting, push away type, mould assembly, the demoulding, the hydraulic control resetted and executive system.
Back-pressure plate swing link mechanism 21 is housed on support, back-pressure plate swing link mechanism 21 is connected with swingable back-pressure plate 19, anti-pressure plate cylinder 4 drives back-pressure plate motion arm-tie 1, back-pressure plate motion arm-tie 1 to pull back-pressure plate motion pull bar 2, back-pressure plate motion support frame 20 to move left and right, drive swing link mechanism 21 along certain orbiting motion, drive swingable back-pressure plate 19 to carry out upper and lower 90 ° of upsets, having reached moves to left closes die cavity, and the unlatching die cavity moves to right.
Take on body 16 sand hopper 15 is housed penetrating abrasive cone shape.Sand hopper 15 middle parts are equipped with and are penetrated sand Pneumatic valve 12, and knockout valve 14 is equipped with at top.Knockout valve 14 is equipped with hopper air bleeding valve 13.By penetrating sand Pneumatic valve 12, hopper air bleeding valve 13, knockout valve 14, sand hopper 15, penetrate abrasive cone shape take over body 16 forms one controlled feed in raw material, the fast rapid fire sand of hyperbar system.
Gas storage bag 9 is housed on supporting traverse 8, for laying in enough air pressure and air demand.
Pressure plate oil cylinder displacement transducer 7 is housed on pressure plate oil cylinder 11, for electric-control system provides pressure plate oil cylinder position signal accurately.
Shown in Fig. 2: below the support left side, servomotor pump assembly 23 is housed, for the high-pressure and hydraulic fluid of changeable flow is provided to hydraulic system.
Anti-pressure plate cylinder displacement transducer 5 is housed on anti-pressure plate cylinder 4, for electric-control system provides back-pressure leaf fat cylinder position signal accurately.
Shown in Fig. 3, quick liquid filling valve forms servo-hydraulic by prefill valve guide spool 36, prefill valve valve body 37 and controls little volume annular seal space, usage ratio pilot valve 39 carries out SERVO CONTROL, input high-pressure low-flow liquid can make prefill valve main valve plug 35 open fast, and proportional pilot valve 39 can be controlled opening speed, to reduce vibrations.While resetting, prefill valve spring 38 promotes prefill valve guide spool 36 and discharges fast the liquid of controlling annular seal space, reaches quick closedown.
Shown in Fig. 4-5, back-pressure plate sealed sides is fixed on O shape elastic sealing plunger piston 29, Ω shape sealing ring 30 on cover plate 33, back-pressure plate body 34 by inner seal cover plate 31, outside seal cover board 32.The O shape elastic sealing plunger piston 29 high by elasticity, that hardness is high, the elastomeric material manufacture of good seal performance forms is bearing in the Ω shape sealing ring 30 that mechanical strength is high, crust is smooth, flexibility is strong, wear-resisting polyurethane material manufacture forms.The faying face of cover plate 33, back-pressure plate body 34 is manufactured with a plurality of ventilation air flues, after injecting air pressure, air pressure promotes O shape elastic sealing plunger piston 29 and outwards expands, and Ω shape sealing ring 30 and die cavity is adjacent to and is sealed, and external leakage occurs while avoiding the molding sand high speed and high pressure to inject die cavity.Lay down air pressure when the back-pressure plate is opened the demoulding, sealing is shunk and has been reduced frictional force, extends and seals service life.
Shown in Fig. 6-7, knockout valve sand-falling port side is by valve cover 27 supportings, sealing gland 25,28 clampings of sealing support ring, the W shape sealing 26 that mechanical strength is high, that crust is smooth, flexibility is strong, wear-resisting polyurethane material manufacture forms is fixing, sealing paste is combined on the spherical flashboard 24 of watt shape, but leaves certain interval between the spherical flashboard 24 of W shape sealing ring 26 and watt shape.Be manufactured with passage on valve cover 27, after injecting air pressure, air pressure is held the outside expansion of W shape sealing ring 26 tightly watt shape spherical flashboard 24 and is sealed, and avoids sand grains generation external leakage in sandbox.Lay down air pressure when valve opening, sealing is shunk and has been reduced frictional force, extends and seals service life.
Servomotor pump assembly 23 is comprised of servomotor and quantitative plunger pump.The rotating speed of servomotor can turn round between 150r/mn-3000 r/min, speed height servo response high (100r response time 0.05S).The high low speed of servomotor changes the high-voltage oil liquid that the actuation plunger pump is exported different small-large flows fast, according to technological requirement, drives oil cylinder motion at a slow speed soon, guarantees to push away that type pressure plate, swingable back-pressure plate open slowly, stop slowly, the rate request of F.F., rewind down.
The course of work of automatic moulding machine is as follows: under original state, anti-pressure plate cylinder 4, pressure plate oil cylinder 11, in retracted state, push away type pressure plate assembly 17 and are retracted into moulding chamber assembly 18 interior desired locations, and swingable back-pressure plate 19 is opened into horizontal level.Knockout valve 14 is in closed condition.Penetrating sand Pneumatic valve 12 closes.Hopper air bleeding valve 13 is closed.After starting operation, anti-pressure plate cylinder 4 is released and is driven swingable back-pressure plate 19 slow starts, fast rotary to turn 90 degrees, move ahead at a slow speed die cavity is sealed.During swingable back-pressure plate 19 fast rotational, 6 pairs of anti-pressure plate cylinders 4 of quick liquid filling valve group carry out quick topping up.Open knockout valve 14 by air cylinder driven reinforced to sand hopper 15, close knockout valve 14 after being dosed to desired location.Penetrate sand Pneumatic valve 12 and open to the interior input high speed and high pressure of sand hopper 15 gas, promote molding sand and penetrate sand to carrying out high speed and high pressure in die cavity, penetrate sand Pneumatic valve 12 and close.Hopper air bleeding valve 13 is opened the interior residual gas of sand hopper 15 is drained, and hopper air bleeding valve 13 is closed.Pressure plate oil cylinder 11 pushes away that type pressure plate assembly 17 opens slowly, the fast compacting sand mold, and now anti-pressure plate cylinder 4 is released simultaneously and pulled swingable back-pressure plate 19 to carry out the sand mold compacting to exerting pressure in die cavity.Anti-pressure plate cylinder 4 is regained, and drives the swingable back-pressure plate 19 slow start demouldings, and fast rotary turn 90 degrees opens die cavity, and gas circuit is controlled the in-built cleaning nozzle of swingable back-pressure plate 19 the floating sand of sand mold, platen is cleaned simultaneously.Pressure plate oil cylinder 11 pushes away type pressure plate assembly 17 and moves ahead fast and push sand mold to the mould assembly position, then adds at a slow speed pressing-type.Pressure plate oil cylinder 11 slow starts drag and push away type pressure plate assembly 17 and return the demoulding, return to fast the desired location of die cavity after the demoulding, simultaneously gas circuit is controlled and is pushed away the in-built cleaning nozzle of type pressure plate assembly 17 the floating sand of die cavity, platen is cleaned, and gas circuit is controlled the frictional force that the air cushion that pushes away type pressure plate assembly 11 bottoms reduces pressure plate and platen.Carry out moulding next time.Automatic moulding machine, according to this mode continuous work, completes continual moulding production.
Claims (1)
1. a vertical-parting box-less shoot squeeze automatic molding machine for clay sand, comprise by fuel tank, the support that base forms, the mold cavities chamber is installed successively on support, add sand and penetrate sand mechanism, moulding pushes away type mechanism, sand mold pressure holding mechanism, die cavity switch switching mechanism and hydraulic system, air-channel system, centralized lubricating system and electric control system, be provided with back-pressure plate swing link mechanism on described automatic moulding machine, fast rapid fire sand system and quick liquid filling valve group, described back-pressure plate swing link mechanism (21) is connected with swingable back-pressure plate (19), the sealed sides that it is characterized in that described swingable back-pressure plate (19) comprises inner seal cover plate (31) and outside seal cover board (32), described inner seal cover plate (31) and outside seal cover board (32) are by O shape elastic sealing plunger piston (29), Ω shape sealing ring (30) is fixed on cover plate (33) and back-pressure plate body (34), faying face at cover plate (33) and back-pressure plate body (34) is manufactured with a plurality of ventilation air flues, described fast rapid fire sand system comprises that penetrating abrasive cone shape takes over body (16) and be fixed on the sand hopper (15) of penetrating on abrasive cone shape adapter body, be equipped with and penetrate sand Pneumatic valve (12) at sand hopper (15) middle part, knockout valve (14) is equipped with at top, described knockout valve (14) is equipped with hopper air bleeding valve (13), the sand-falling port side of described knockout valve (14) is supported by valve cover (27), sealing gland (25), sealing support ring (28) clamping, the W shape sealing ring (26) that polyurethane material is made is fixing, described sealing ring is fitted on the spherical flashboard of watt shape (24), and leave gap between W shape sealing ring (26) and the spherical flashboard of watt shape (24), be manufactured with passage on valve cover (27), after injecting air pressure, air pressure is held the outside expansion of W shape sealing ring (26) tightly the spherical flashboard of watt shape (24) and is sealed, to avoid sand grains generation external leakage in sandbox, described quick liquid filling valve group comprises prefill valve main valve plug (35), prefill valve guide spool (36), prefill valve valve body (37), prefill valve spring (38) and proportional pilot valve (39), wherein prefill valve guide spool (36) and prefill valve valve body (37) composition servo-hydraulic are controlled little volume annular seal space, carried out the opening speed of SERVO CONTROL prefill valve main valve plug (35) by proportional pilot valve (39), promote prefill valve guide's spool (36) by prefill valve spring (38) while closing and discharge fast the liquid of controlling annular seal space, realize quick closedown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210503165.1A CN103433437B (en) | 2012-11-30 | 2012-11-30 | Vertical parting flaskless shoot-squeeze clay-bonded sand automatic molding machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210503165.1A CN103433437B (en) | 2012-11-30 | 2012-11-30 | Vertical parting flaskless shoot-squeeze clay-bonded sand automatic molding machine |
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| CN103433437A true CN103433437A (en) | 2013-12-11 |
| CN103433437B CN103433437B (en) | 2015-07-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647287A (en) * | 2022-12-28 | 2023-01-31 | 保定维尔铸造机械股份有限公司 | Vertical parting flaskless shoot-squeeze molding machine |
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| CN203044814U (en) * | 2012-11-30 | 2013-07-10 | 山西方盛液压机电设备有限公司 | Vertical parting flaskless shoot-squeeze automatic molding machine of clay sand |
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- 2012-11-30 CN CN201210503165.1A patent/CN103433437B/en active Active
Patent Citations (6)
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| CN2710794Y (en) * | 2004-06-07 | 2005-07-20 | 苏州工业园区明志铸造装备有限公司 | Cold-box core blower having multiple station |
| US20080135205A1 (en) * | 2006-12-08 | 2008-06-12 | Thyssenkrupp Waupaca Inc. | Molding and casting machine |
| CN201720399U (en) * | 2010-06-10 | 2011-01-26 | 满城县永红铸造机械有限公司 | Vertical parting molding machine |
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| CN203044814U (en) * | 2012-11-30 | 2013-07-10 | 山西方盛液压机电设备有限公司 | Vertical parting flaskless shoot-squeeze automatic molding machine of clay sand |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115647287A (en) * | 2022-12-28 | 2023-01-31 | 保定维尔铸造机械股份有限公司 | Vertical parting flaskless shoot-squeeze molding machine |
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Effective date of registration: 20190507 Address after: 030600 Shanxi Jinzhong City Shanxi Comprehensive Reform Demonstration Zone Patentee after: Shanxi Haitel Heavy Industry Machinery Co., Ltd. Address before: 030600 No. 8 Pioneer Road, Yuci Industrial Park, Jinzhong City, Shanxi Province Patentee before: Shanxi Fangsheng Hydraulic and Electrical Equipment Co.,Ltd. |