CN101352752B - Cold-box core blower - Google Patents
Cold-box core blower Download PDFInfo
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- CN101352752B CN101352752B CN2008101399530A CN200810139953A CN101352752B CN 101352752 B CN101352752 B CN 101352752B CN 2008101399530 A CN2008101399530 A CN 2008101399530A CN 200810139953 A CN200810139953 A CN 200810139953A CN 101352752 B CN101352752 B CN 101352752B
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Abstract
The invention provides a cold-box core shooter which comprises a frame, a lower air compression bag, a suspending movable shooting cavity and a suspension body, wherein, the lower air compression bag is arranged at the upper end of the frame, the upper part of the frame is provided with a race which is provided with a moving plate, the shooting cavity and the suspension body are arranged on the moving plate by spring in a suspension manner, either the shooting cavity or the suspension body is connected with a shifting cylinder on the frame, the left and right sides at the lower part of the frame are respectively provided with a mold opening and closing cylinder and a roller table frame, the upper end of the roller table frame is provided with a roller table and a baseplate race, the roller table frames at the two sides are provided with a race span adjusting mechanism, and a core box baseplate is arranged between the baseplate races at the two sides; the bottom of the frame is provided with a mold core lifting cylinder and a bearing plate, and the mold core lifting cylinder is connected with the bearing plate; the rear side of the frame at the bottom part is provided with a core outlet cylinder. The cold-box core shooter has the advantages of reasonable structure, realizing direct addition of sand to the shooting cavity by a sand mill, avoiding wall hanging and caking of wall, improving the qualification rate of the sand core and realizing upward air exhaust of the remaining air in the shooting cavity.
Description
Technical field
The present invention relates to the cold-box core blower in the foundry production, belong to the core shooter technical field in the foundry machinery.
Background technology
In the whole technical process of Foundry Production, some important foundry goods are very high to the requirement of core, and core not only will have enough intensity, size, profile clearly accurately, and good collapsibility will be arranged.Whole core manufacturing craft process equipment needed thereby has puddle mixer, core shooter and aerogenerator of triethylamine, puddle mixer is to prepare core sand by proportioning, and the core sand for preparing added penetrating in the chamber of core shooter, core shooter is injected core sand and is made core in the core box, and the effect of aerogenerator of triethylamine is to make liquid amine become gaseous state amine and enter by inflatable body to make core sclerosis in the core box.The performance of these equipment is directly connected to the quality of production and the efficient of core.At present the problem that exists of the used cold-box core blower of casting industry have following some:
1. puddle mixer and core shooter matching are poor, and sand core strength is difficult to guarantee.
The core sand that puddle mixer prepares can not directly add core shooter and penetrate in the chamber.Be to guarantee core shooting sand, penetrate and establish an auxiliary sand hopper on the chamber, sand hopper and penetrate the chamber and separate by a dishful of valve or gate valve, the core sand that puddle mixer prepares is discharged into sand hopper; Valve open when adding sand, valve closing when penetrating sand.Switching frequent in the course of work adds sand, certainly will cause valve wearing and tearing or hindered by core sand to be not closed completely, and sand hopper sandblast phenomenon will appear adding in core shooting in this case, makes that to add in the sand hopper core sand excessive, causes core shooting unreal simultaneously, can't guarantee the core quality; The easy wall built-up of core sand in sand hopper caking in addition enters through vibrations repeatedly and will stop up nozzle after penetrating the chamber, and waste product will appear in core shooting in this case.
2. penetrate the sand high pressure draught and enter from penetrating the side, chamber by the rubber film valve, penetrating the chamber, built-in to penetrate sand bucket fragile; More serious problem is that the Sand jet valve rubber film usually breaks suddenly, causes unexpected stopping production.Add sand valve, rubber film and penetrate the replacing of sand bucket all pretty troublesome, reduce production efficiency, the increase expense, influence ordinary production.
At present the used core shooter of casting industry be mostly penetrate motionless, the workbench jacking, core box is pushed up to penetrating head (a stroke 150-250mm), penetrate sand exhaust aftertable and fall back original position, the air blowing plate drives into to be penetrated between head and the core box, and workbench is jack-up once more, holds out against the back and blows, original position falls back in the sclerosis aftertable of blowing, and moves to die sinking then and gets core station (stroke 1500-2000mm).
Also be accompanied by the operation of side clamp mechanism in the worktable lifting process, lifting is the action of interfering mutually with clamping.The wearing and tearing that this can quicken the worktable lifting guiding mechanism reduce its running precision.Cause perforation that response is reduced, and then the sand effect is penetrated in influence.
Heavy workbench moves with the big continually distance of core box, must cause slow in one's movementsly, and power consumption is big, the cycle of operation is long, efficient is low.
Die opening mechanism is ejected core by the plunger tip bar after core box is opened.The problem that this stripping means exists is:
A, core are stressed unreasonable: core easily by the top split, the plunger tip bar is difficult to regain;
B, get the core inconvenience: chassis is huge, ejects the core of core, manually is difficult to close, it is got the core posture and does not meet human body station requirement: the following core box of DN400 is the compound core box of multimode cavity, 2-3 core ejects simultaneously, the single core of directly getting, and the fuse of the inside reaches; Core weight more than the DN400 is more than 15Kg, and the single core of directly getting is required great effort very much.Set up the corning machine structure, make entire machine complicated more, the cycle of operation is longer, and efficient is lower.
C, core box complex structure, manufacture difficulty is big.
Summary of the invention
The present invention is directed to that existing foundry industry cold-box core blower exists etc. problem, provide a kind of rational in infrastructure, dependable performance, the cold-box core blower that production efficiency is high.
Cold-box core blower of the present invention adopts following technical solution:
This cold-box core blower comprises frame, presses down gas bag, floated moving penetrated the adjustable core box bindiny mechanism in chamber and suspended substance and space; Press down gas bag and be installed in the upper end of frame, the upper end that presses down gas bag is connected with hold-down cylinder, upper rack is provided with raceway, raceway is provided with movable plate, penetrating chamber and suspended substance all is installed on the movable plate by the spring suspension, penetrate chamber and one of suspended substance and be connected with movable cylinder on the frame, the lower end of penetrating the chamber is equipped with penetrates head, and the lower end of suspended substance is equipped with the air blowing plate; The upper end of frame adds the sand position and is provided with and adds sand and lead bucket, adds sand and leads and be provided with charge level controller in the bucket; Core box bindiny mechanism comprises out closing cylinder, roller bed frame, core rod lift cylinders and supporting plate, the left and right sides of frame lower all is equipped with out closing cylinder and is provided with roller bed frame, the upper end of roller bed frame is provided with roller-way, the side is provided with the base plate raceway, raceway span guiding mechanism is installed on the roller bed frame of both sides, between the base plate raceway of both sides the core box base plate is installed; The bottom of frame is equipped with core rod lift cylinders and supporting plate, and the core rod lift cylinders is connected with supporting plate; The bottom rear side of frame is equipped with the knockout cylinder, and the knockout cylinder is connected with the core box base plate.
Press down gas bag and comprise hold-down cylinder, air flue and gas bag, air flue is installed in the gas bag, its two ends pass gas bag, the upper end is provided with upper end cover, and the piston rod of hold-down cylinder is connected with the upper end cover of air flue, and the air flue upper portion side wall is provided with the air inlet with the gas bag internal communication, the upper end cover of air flue is provided with pneumatic tubes, the below of the inherent upper end cover of air flue is provided with Sand jet valve, is provided with the filter sand net in the air flue end opening, is provided with air bleeding valve on the air flue sidewall of the online portion of filter sand.
Raceway span guiding mechanism adopts rack-and-pinion travel mechanism, is made of the rack and pinion engagement tooth bar that is installed in the raceway bottom and the gear on the frame.Adjustment by the base plate raceway spacing on the mobile realization roller bed frame of both sides roller bed frame.
Rational in infrastructure, the dependable performance of the present invention has realized that puddle mixer directly adds sand in penetrating the chamber, with mixing with usefulness, has effectively avoided storing mulling and the wall built-up caking phenomenon that produces, has satisfied the core shooting technological requirement fully, can increase substantially the core qualification rate.Exempted the sand bucket of penetrating in the existing core shooter, avoided adding the sand valve and run sand and penetrate sand bucket damage problem.Realized penetrating the last exhaust of residual air in the chamber, and exhaust screen can obtain blowback cleaning, fully guarantee the unobstructed of each exhaust, evacuation time shortens, and penetrates perforation not occur when head lifts and leak the sand phenomenon.Adopt adjustable core box bindiny mechanism, installing space and opening stroke can be adjusted according to the core box size, to adapt to the production of the bigger serial core of specification span.
Description of drawings
Fig. 1 is the structural representation of cold-box core blower of the present invention.
Fig. 2 is the left view of Fig. 1.
Wherein: 1, press down gas bag, 2, hold-down cylinder, 3, air flue, 4, Sand jet valve, 5, gas bag, 6, travel switch, 7, pneumatic tubes, 8, the filter sand net, 9, air bleeding valve, 10, add sand hopper, 11, charge level controller, 12, penetrate the chamber, 13, penetrate head, 14, raceway, 15, suspended substance, 16, the air blowing plate, 17, movable cylinder, 18, frame, 19, closing cylinder is opened on a left side, and 20, left side mould, 21, left side roller bed frame, 22, closing cylinder is opened on the right side, and 23, right mould, 24, tooth bar, 25, gear, 26, bearing block, 27, the core rod lift cylinders, 28, core rod, 29, movable plate, 30, roller-way, 31, the core box base plate, 32, right roller bed frame, 33, the base plate raceway, 34, supporting plate, 35, the knockout cylinder, 36, core.
The specific embodiment
As depicted in figs. 1 and 2, cold-box core blower of the present invention comprises frame 18, raceway 14, presses down gas bag 1, floated moving penetrate the adjustable core box bindiny mechanism in chamber 12, suspended substance 15 and space.
Press down gas bag 1 and be installed in the upper end of frame 18, the top that presses down gas bag 1 is equipped with hold-down cylinder 2.The top of frame 18 is provided with raceway 14, raceway 14 is provided with movable plate 29, penetrating chamber 12 and suspended substance 15 all is installed on the movable plate 29 by the spring suspension, penetrating chamber 12 or suspended substance 15 is connected with movable cylinder 17 on the frame 18, the lower end of penetrating chamber 12 is equipped with penetrates 13, and the lower end of suspended substance 15 is equipped with air blowing plate 16.Under the drive of movable cylinder 17, suspended substance 15 with penetrate chamber 12 and can on raceway 14, move simultaneously.The sand position that adds in frame 18 upper ends is provided with and adds sand and lead bucket, adds sand and leads and be provided with far infrared charge level controller 11 in the bucket.The lower left side of frame 18 is equipped with a left side and opens closing cylinder 19 and be provided with left roller bed frame 21, and the right side is equipped with the right side and opens closing cylinder 22 and be provided with right roller bed frame 32.The upper end of left side roller bed frame 21 and right roller bed frame 32 is equipped with roller-way 30, and the side is equipped with base plate raceway 33.Left side mould 20 is installed on the roller-way of left roller bed frame 21 and opens closing cylinder 19 with a left side and is connected.Right mould 23 is installed on the roller-way of right roller bed frame 32 and opens closing cylinder 22 with the right side and is connected.A core box base plate 31 is installed on the base plate raceway of left roller bed frame 21 and right roller bed frame 32.
The bottom of left side roller bed frame 21 and right roller bed frame 32 all is equipped with raceway span guiding mechanism, this mechanism adopts rack-and-pinion travel mechanism, in the bottom of roller bed frame tooth bar 24 is installed, tooth bar 24 and gear 25 engagements that are installed on the bearing block 26, bearing block 26 is installed in (referring to Fig. 1) on the frame 18.Handwheel on the turning gear wheel shaft will move in tooth bar 24 drive bottom left roller bed frame 21 and right roller bed frame 32, regulates the span of 33 of its side base plate raceways with this.
The bottom of frame 18 is equipped with core rod lift cylinders 27, and the piston rod of core rod lift cylinders 27 is connected with supporting plate 34, and the both sides of supporting plate 34 are equipped with guide pillar.Core rod 28 is installed on the supporting plate, and both are connected and fixed by vacuum suction.The back, bottom of frame 18 also is equipped with knockout cylinder 35, and knockout cylinder 35 is connected with core box base plate 31, and the core 36 that makes is removed.
Press down gas bag 1 and mainly comprise hold-down cylinder 2, air flue 3 and gas bag 5, air flue 3 welds together with gas bag 5, gas bag 5 is passed at its two ends, the piston rod of hold-down cylinder 2 is connected by the upper end cover of ball-joint with air flue 3, the upper portion side wall of air flue 3 is provided with the air inlet with gas bag 5 internal communication, and this air inlet is positioned at more than the close mouth of Sand jet valve.Gas bag 5 is provided with gases at high pressure import and pressure regulator valve.The upper end cover of air flue 3 is provided with pneumatic tubes 7, and the below of air flue 3 inherent upper end covers is provided with Sand jet valve 4, is provided with filter sand net 8 in the end opening of air flue 3, is provided with air bleeding valve 9 on the air flue sidewall on filter sand net 8 tops.Pressing down on the support of gas bag 1 travel switch 6 is installed, with the stroke of control piston bar, also is simultaneously the stroke of control air flue 3.
Running of the present invention is:
Adjust the width of the span of left roller bed frame 21 and right roller bed frame 32 side base plate raceways by raceway span guiding mechanism to respective core box plate 31.
Penetrating chamber 12 is displaced downwardly to when adding the sand position in the drive of movable cylinder 17, it is suitable for reading over against the discharge port that adds sand hopper 10, lead the directly mixed core sand of adding in penetrating chamber 12 of bucket by adding sand, adding sand after material is full leads a charge level controller 11 in the bucket and sends signal puddle mixer is stopped automatically, then start automatically when lacking material, realization is with mixing with usefulness, effectively avoided mulling in advance to be stored in adding in the sand hopper 10 and the wall built-up caking phenomenon that produces, satisfy the core shooting technological requirement fully, can increase substantially the qualification rate of core 36.
The chamber 12 of penetrating of filling it up with core sand is displaced downwardly to centre bit in the drive of movable cylinder 17, and simultaneously core rod 28 rises under the drive of core rod lift cylinders 27, and left mould 20 is opened on a left side under the drive of closing cylinder 19 and moved on the roller-way of left roller bed frame 21.Right mould 23 is opened on the right side under the drive of closing cylinder 22 and is moved on the roller-way of right roller bed frame 32.Left side mould 20 and right mould 23 matched moulds form core box with the core rod 28 that rises.Start hold-down cylinder 2, drive air flue 3 and press down, the end opening of air flue 3 is aimed at and is penetrated the suitable for reading of chamber 12, to penetrate chamber 12 and penetrate 13 and press to core box, and form the sand system of penetrating of a sealing, the Sand jet valves 4 in the air flue 3 are opened, high pressure draught in the gas bag 5 flings 12 centers, chamber of penetrating in mode the most efficiently along the axis.This inflation mode can make a maximum equal injection sand power of 13 acquisitions of penetrating, the structural strength that guarantees the ring-type core is had great significance, the sand valve that adds of having avoided existing core shooter to be prone to when penetrating sand simultaneously runs sand and penetrates sand bucket damage problem (do not penetrate sand bucket in the core shooter of the present invention, exempted and penetrated sand bucket).Sand jet valve 4 is closed under pneumatic tubes 7 inner high voltage gas effects, air bleeding valve 9 is opened, the residual air of penetrating in the chamber 12 is discharged after filter sand net 8 filters, filter sand net 8 obtains returning the blowing-out reason when penetrating sand once more, guaranteed the unobstructed of each exhaust fully, make the residual air emptying in the short period of time of penetrating in the chamber 12, penetrate 13 and perforation do not occur when lifting and leak the sand phenomenon, for next step air blowing creates good conditions.
Penetrate 13 and lift, penetrate chamber 12 and retract and add the sand position, the plate 16 of blowing simultaneously moves on to centre bit, and air blowing plate 16 is connected with the amine pipe that blows of aerogenerator of triethylamine.Start hold-down cylinder 2 once more, drive air flue 3 and press down, the end opening of air flue 3 is aimed at the suitable for reading of suspended substance 15, and suspended substance 15 and air blowing plate 16 are pressed to core box.Hold out against back air blowing plate 16 and blow (the gaseous state amine that aerogenerator of triethylamine produces), make core 36 sclerosis to core box.
Remove left mould 20 and right mould and fall core rod 28 after 23,0.5 seconds.Start knockout cylinder 35, by core box base plate 31 core 36 that makes is removed, another core box base plate puts in place, realizes double production, has improved production efficiency.
The present invention has realized that puddle mixer directly adds sand in penetrating chamber 12, realized penetrating the last exhaust of residual air in the chamber 12, realized the adjustable connection of core box, installing space and opening stroke can be adjusted according to the core box size, to adapt to the bigger serial core production of specification span, avoided the excessive and a series of problems brought of the core shooter scope of application, make the core demoulding quick and stressed rationally, knockout simultaneously is with to get core convenient.
Claims (3)
1. cold-box core blower comprises frame, presses down gas bag, floated moving penetrate the adjustable core box bindiny mechanism in chamber and suspended substance and space; Press down gas bag and be installed in the upper end of frame, the upper end that presses down gas bag is connected with hold-down cylinder, upper rack is provided with raceway, raceway is provided with movable plate, penetrating chamber and suspended substance all is installed on the movable plate by the spring suspension, penetrate chamber and one of suspended substance and be connected with movable cylinder on the frame, the lower end of penetrating the chamber is equipped with penetrates head, and the lower end of suspended substance is equipped with the air blowing plate; It is characterized in that: the upper end of frame adds the sand position and is provided with and adds sand and lead bucket, adds sand and leads and be provided with charge level controller in the bucket; Core box bindiny mechanism comprises out closing cylinder, roller bed frame, core rod lift cylinders and supporting plate, the left and right sides of frame lower all is equipped with out closing cylinder and is provided with roller bed frame, the upper end of roller bed frame is provided with roller-way, the side is provided with the base plate raceway, raceway span guiding mechanism is installed on the roller bed frame of both sides, between the base plate raceway of both sides the core box base plate is installed; The bottom of frame is equipped with core rod lift cylinders and supporting plate, and the core rod lift cylinders is connected with supporting plate; The bottom rear side of frame is equipped with the knockout cylinder, and the knockout cylinder is connected with the core box base plate.
2. cold-box core blower according to claim 1, it is characterized in that: the described gas bag that presses down comprises hold-down cylinder, air flue and gas bag, air flue is installed in the gas bag, its two ends pass gas bag, the upper end is provided with upper end cover, the piston rod of hold-down cylinder is connected with the upper end cover of air flue, the air flue upper portion side wall is provided with the air inlet with the gas bag internal communication, the upper end cover of air flue is provided with pneumatic tubes, the below of the inherent upper end cover of air flue is provided with Sand jet valve, be provided with the filter sand net in the air flue end opening, on the air flue sidewall of the online portion of filter sand, be provided with air bleeding valve.
3. cold-box core blower according to claim 1 is characterized in that: described raceway span guiding mechanism adopts rack-and-pinion travel mechanism, is made of the rack and pinion engagement tooth bar that is installed in the raceway bottom and the gear on the frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101399530A CN101352752B (en) | 2008-09-11 | 2008-09-11 | Cold-box core blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101399530A CN101352752B (en) | 2008-09-11 | 2008-09-11 | Cold-box core blower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101352752A CN101352752A (en) | 2009-01-28 |
| CN101352752B true CN101352752B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101399530A Expired - Fee Related CN101352752B (en) | 2008-09-11 | 2008-09-11 | Cold-box core blower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103962503A (en) * | 2014-04-08 | 2014-08-06 | 宁波全力机械模具有限公司 | Mold opening and closing mechanism for integral core shooting box mold of middle guide frame of railway vehicle side frame |
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| CN102228958B (en) * | 2011-07-01 | 2012-10-10 | 满城县永红铸造机械有限公司 | Core feeding machine |
| DK2805782T3 (en) * | 2012-05-23 | 2018-06-14 | Sintokogio Ltd | NUCLEAR PREPARATION AND NUCLEAR PREPARATION |
| CN103317098B (en) * | 2013-06-28 | 2015-07-01 | 苏州明志科技有限公司 | Driving mechanism for gas blowing cover of core-making machine |
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| CN104148595B (en) * | 2014-09-04 | 2016-11-30 | 苏州明志科技有限公司 | Head and air blowing shield mechanism are penetrated in the movement of a kind of upper die mould core shooter |
| CN104444307B (en) * | 2014-11-12 | 2016-08-31 | 苏州明志科技有限公司 | The full-automatic core box of a kind of core making machine changes mechanism |
| CN106270413B (en) * | 2016-08-31 | 2018-12-07 | 西安鑫龙机械铸造有限公司 | It is a kind of for making the device and its application method of film covered sand core |
| CN107511460A (en) * | 2017-09-29 | 2017-12-26 | 湖北荆安汽车零部件有限公司 | A kind of core manufacturing machine |
| CN111957902B (en) * | 2020-09-08 | 2022-01-25 | 济南柳玉鑫机械设备有限公司 | Core making machine |
| CN115213359B (en) * | 2022-07-25 | 2023-07-04 | 保定茶山五岳铸造有限公司 | Cold core box core shooting machine for metal castings and processing method |
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| CN103962503A (en) * | 2014-04-08 | 2014-08-06 | 宁波全力机械模具有限公司 | Mold opening and closing mechanism for integral core shooting box mold of middle guide frame of railway vehicle side frame |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN101352752A (en) | 2009-01-28 |
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