CN107262681A - A kind of application method of wearing piece casting mould turnover sand fallout system - Google Patents
A kind of application method of wearing piece casting mould turnover sand fallout system Download PDFInfo
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- CN107262681A CN107262681A CN201710500074.5A CN201710500074A CN107262681A CN 107262681 A CN107262681 A CN 107262681A CN 201710500074 A CN201710500074 A CN 201710500074A CN 107262681 A CN107262681 A CN 107262681A
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- sandbox
- turning arm
- arm
- sand fallout
- delivery chute
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- 239000004576 sand Substances 0.000 title claims abstract description 84
- 238000005266 casting Methods 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000007306 turnover Effects 0.000 title claims abstract description 31
- 244000035744 Hura crepitans Species 0.000 claims abstract description 134
- 230000001939 inductive effect Effects 0.000 claims abstract description 42
- 230000008569 process Effects 0.000 claims abstract description 17
- 230000002045 lasting effect Effects 0.000 claims abstract description 9
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 112
- 239000003110 molding sand Substances 0.000 claims description 40
- 230000007246 mechanism Effects 0.000 claims description 30
- 230000008093 supporting effect Effects 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 3
- 230000006872 improvement Effects 0.000 description 9
- 239000012535 impurity Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000007528 sand casting Methods 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 238000013475 authorization Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000006148 magnetic separator Substances 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C17/00—Moulding machines characterised by the mechanism for separating the pattern from the mould or for turning over the flask or the pattern plate
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crushing And Grinding (AREA)
- Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
Abstract
The invention discloses a kind of application method of wearing piece casting mould turnover sand fallout system, belong to wearing piece Casting Equipment field.The present invention comprises the following steps:Step 1: installing sandbox;Step 2: turning arm is rotated;Step 3: shake out.In step 2:Telescopic arm starts elongation, turning arm is promoted slowly to rise and keep rotating, rotary shaft keeps synchronous axial system with the rotation of turning arm, in rotary shaft rotation process, rotating disk synchronously rotates, rotating disk rotates 105 °, 120 ° and 135 ° successively, and above three angle is three limit points of turning arm rotational angle so that inductive switch senses the first sensor block, the second sensor block and the 3rd sensor block successively;Turning arm is turned back to behind home position, and sandbox is slided on base under the lasting promotion of pushing arm out of turning arm, is then transported to away.The present invention mainly realizes the function of safe and reliable progress sandbox turning operation, and is appropriate for high-volume sand fallout operation.
Description
Present patent application is to be directed to Application No.:2015110323988 divisional application, the applying date of original application
For:2015-12-31, invention and created name is:A kind of wearing piece casting mould turnover sand fallout system.
Technical field
The present invention relates to wearing piece Casting Equipment field, more specifically to a kind of wearing piece casting mould turnover sand fallout
The application method of system.
Background technology
Wearing piece is typically produced by way of casting, and common wearing piece is stirring vane, hollow abrading-ball etc..In casting
In production, the method for sandbox upset is varied, is broadly divided into two major classes:Hanging upset and ground upset.For vacantly turning over
Transfer, need to be hanging by its sandbox using tipper, and then realize that it overturns, and for thicker or larger casting in matched moulds process
During middle mould turnover, because sandbox size is larger, tipper chain is easily pulled off, and there is larger potential safety hazard.
Easily it is pulled off to solve tipper chain, the problem of there is larger potential safety hazard, in the prior art existing correlation
Technical scheme is disclosed, and such as Authorization Notice No. is the U of CN 203221185, and authorized announcement date is new for the practicality on October 2nd, 2013
Type patent, this application case discloses a kind of Sand box turnover mechanism, and the both ends of sandbox are provided with hanger, and switching mechanism includes being used to incite somebody to action
The balance suspender that sandbox is vacantly sling, the sprocket transmission device for driving sandbox upset, balance suspender include balance cross bar, hung
Ring, sprocket transmission device includes sprocket wheel and chain, and sprocket wheel includes sprocket holder, is arranged on sprocket holder interior energy and rotated around Pivot Point Center line
Sprocket shaft, the sprocket body that is fixed on sprocket shaft, chain is set in sprocket body and hanger, and sprocket body is in polygon
Body shape, and the section perpendicular to horizontal direction of sprocket body is polygon, is equipped with the whole in polygon each edge recessed
Groove, groove can be meshed with chain, and at least three grooves are meshed with chain in multiple grooves.Will in this application case
The stress that chain is subject to is decomposed so that chain is difficult to be pulled off, reduction sandbox upset potential safety hazard, while by chain with
The groove of sprocket body is meshed, and improves the stability of sandbox upset.But the Sand box turnover mechanism of this application case, its structure mistake
In complexity, driving process is more complicated, and needs with sandbox handling appliance come handling sandbox, there is larger potential safety hazard,
The equipment investment cost of enterprise is also add simultaneously.
Also there is the traditional flask overturning device for not using chain in the prior art, traditional flask overturning device, its structure
Including:Base, sandbox overturn power set and by being arranged on the upset that the trip shaft of its bottom is movably arranged on base
Frame, the output shaft of sandbox upset power set is connected with one end of trip shaft, and sand box locking device is provided with rollover stand.Its
In, sandbox upset power set are generally reducing motor, and the flip angle of this traditional flask overturning device is completely by the electricity that slows down
Machine is controlled, and the reliability of reducing motor is relatively low, once reducing motor occur it is abnormal, with regard to uncontrollable flip angle so that
Cause rollover stand rotational angle excessive, cause sandbox to be damaged, there is larger potential safety hazard.
In summary, a kind of safe and reliable wearing piece sand box used for casting turning device how is designed, is prior art
One technical problem of middle urgent need to resolve.
At present, V methods foundry engieering is with its dry moulding, and pollution-free, inexpensive, surface finish of casting is good, vast
Producer is cast to receive.But the molding sand after V method vacuum sealed molding knockouts is easily mixed into large granular impurity etc., in downward first device
In course of conveying, used jigging conveyer can not be such that impurity is effectively excluded, and easily block follow-up equipment, so that shadow
Equipment operation is rung, is haveed no alternative but using artificial separation, but efficiency is very low.Therefore, design one kind can in vibrating transportation band
The equipment for having screening function is very important.
In the prior art, after flask overturning device overturns sandbox, casting and molding sand in sandbox are typically filled by sand fallout
Put and separated, common sand fallout device is vibratory shakeout machine, and vibratory shakeout machine is the knockout by vibration realizing product, and this sets
It is standby to instead of the trouble that Traditional Man beats or sand is cleared up with impact drill.In the prior art on the existing phase of vibratory shakeout machine
The technical scheme of pass is disclosed, for example patent publication No.:The U of CN 202779717, publication date:On March 13rd, 2013, innovation and creation
It is entitled:A kind of new sand casting product vibratory shakeout machine, this application case discloses a kind of new sand casting product
It is fixed with vibrating motor, the supporting plate in the left side of frame and is provided with back in vibratory shakeout machine, including frame, the supporting plate of frame
Turn to be provided with slewing reduction apparatus in support meanss, the supporting plate on the right side of frame, middle part of the slew gear above frame, return
The rotatable connection axle for turning support meanss is fixed on the left side of slew gear, and the reducing motor output shaft of slewing reduction apparatus is fixed on
Sediment outflow funnel, bottom of the sediment outflow funnel just to slew gear are fixed with the right side of slew gear, frame;The top plate of slew gear
On be fixed with pneumatic hammer, the bottom fixing frame of slew gear is fixed with product apparatus for placing, and the top of pneumatic hammer is placed against product to be filled
That puts puts thing platform.Product can be carried out 360 ° of rotations and carry out hammering knockout by the vibratory shakeout machine of this application case, without making
Deformation of products, can also carry out knockout, it greatly reduces cost of labor, improves operating efficiency by vibrating.But the Shen
Please the vibratory shakeout machine of case be individually for product and carry out sand fallout and manufacture and design, carrying out sand fallout operation to high-volume wants
Asking still can not realize, and the vibratory shakeout machine of this application case is complicated, and manufacturing cost is higher.
In summary, a kind of wearing piece casting sand fallout device for being appropriate for high-volume sand fallout operation how is designed,
It is another technical problem of urgent need to resolve in the prior art.
The content of the invention
1. the invention technical problem to be solved
It is an object of the invention to overcome, not enough in the prior art there is provided a kind of wearing piece casting mould turnover sand fallout system
Application method, mainly realize the function of safe and reliable progress sandbox turning operation, and be appropriate for high-volume sand fallout operation.
2. technical scheme
To reach above-mentioned purpose, the technical scheme that the present invention is provided is:
The wearing piece casting application method of mould turnover sand fallout system of the present invention, comprises the following steps:
Step 1: installing sandbox;
Step 2: turning arm is rotated;
Step 3: shake out.
As further improvement of the present invention,
In the step one:Sandbox after moulding by casting is transported on base, and sandbox is under the lasting promotion of push-in arm
Slided into along base pulley up on the turning arm pulley in turning arm main body, sandbox continues to slide to rotation on turning arm pulley
The side plate of arm main body, now the cross slider on the forward and backward outer wall of sandbox slip into what is formed in sandbox cover between entablature and sill
Track, until the bottom surface of sandbox is fully located on the lower shoe of turning arm main body, now sandbox is installed on turning arm.
As further improvement of the present invention, in the step 2:Telescopic arm starts elongation, promotes turning arm slowly to rise
Rise and keep rotating, rotary shaft is kept in synchronous axial system, rotary shaft rotation process with the rotation of turning arm, and rotating disk does synchronization
Rotate, rotating disk rotates 105 °, 120 ° and 135 ° successively, and above three angle is three limit points of turning arm rotational angle,
So that inductive switch senses the first sensor block, the second sensor block and the 3rd sensor block successively, when inductive switch senses first
During sensor block, inductive switch control telescopic arm stops elongation, rear to continue to extend, when inductive switch senses the second sensor block,
Inductive switch control telescopic arm stops elongation, rear to continue to extend, when inductive switch senses three sensor blocks, inductive switch control
Telescopic arm processed stops elongation, after start to shrink at so that turning arm is turned back to home position;Turning arm is turned back to behind home position,
Sandbox is slided on base under the lasting promotion of pushing arm out of turning arm, is then transported to away.
As further improvement of the present invention, in the step 3:Sandbox is with turning arm rotation process, in sandbox
Molding sand and casting the material input of sand fallout device is poured into along sandbox cover from the upper shed of sandbox, molding sand and casting are in sieve plate
On along material input to the direction of material output end vibrate transport, vibration transportation Sand shaken dissipate and on sieve plate
Through hole fall into below sieve plate and collect, casting is stopped by the first block material plate, the second block material plate and by lifting machine from conveying
Taken away in groove.
As further improvement of the present invention, the wearing piece casting includes flask overturning device with mould turnover sand fallout system
With sand fallout device;
The flask overturning device includes turning arm, frame, telescopic arm, base and sandbox, and the frame is fixed on base
On, the turning arm is hinged in frame, and the telescopic arm is connected with turning arm, and the telescopic arm is used to promote turning arm to rotate
Arm and the pin joint of frame rotate for the center of circle;The turning arm is used to install sandbox;
The sand fallout device is located at the side of flask overturning device, and the sand fallout device includes delivery chute, supporting mechanism, vibration
Mechanism and delivery chute base, the delivery chute are arranged on delivery chute base by supporting mechanism, delivery chute and vibrating mechanism phase
Even, the vibrating mechanism is used to from the material input of delivery chute vibrate the material in delivery chute to the material output end of delivery chute
Sieve plate is provided with transport, the delivery chute, the sieve plate is provided with through hole, and the aperture of the through hole is exported along material input to material
Extreme direction is gradually reduced.
As further improvement of the present invention, in the flask overturning device, the turning arm includes the sandbox on top
Cover and the turning arm main body of bottom, the turning arm main body include a lower shoe and side plate, and the lower end of the side plate is vertically solid
It is connected on lower shoe, the upper end of the side plate is connected on sandbox cover, the sandbox cover is the passage of up/down perforation;In the frame
Rotary shaft is installed, the sandbox cover is rotatably connected in frame by rotary shaft;
In the sand fallout device, the supporting mechanism includes support spring and connecting rod, and the support spring is overall to material
Direction is tilted where output end, and the support spring one end is fixed on delivery chute base, and the support spring other end is fixed on conveying
The bottom of groove, described connecting rod one end is fixed on delivery chute base, and the connecting rod other end is fixed on the bottom of delivery chute, the connecting rod
It is symmetrical set with support spring.
As further improvement of the present invention, in the flask overturning device, rotating disk is fixed with the rotary shaft,
Be provided with the rotating disk outer surface in sensor block, the frame and be fixed with inductive switch, the inductive switch just to rotating disk outside
The control unit connection of surface, inductive switch and telescopic arm;
In the sand fallout device, the supporting mechanism includes the combination of at least two pairs support springs and connecting rod, it is described at least
Length direction of the combination of two pairs of support springs and connecting rod along conveying trench bottom is evenly distributed.
As further improvement of the present invention, in the flask overturning device, the sensor block was included along rotating disk week
To the first sensor block, the second sensor block and the 3rd sensor block of arrangement, the turning arm starts before rotation, with rotary shaft point
For center of circle inductive switch position and the first sensor block position central angle be 105 °, inductive switch position and the
The central angle of two sensor block positions is 120 °, the central angle of inductive switch position and the 3rd sensor block position is
135°;
In the sand fallout device, the vibrating mechanism includes eccentric wheel, eccentric wheel rotating shaft, eccentric shaft bearing and motor, institute
State motor to be installed on delivery chute base, output wheel is installed on the output shaft of the motor, the output wheel passes through belt and bias
Wheel is connected;The eccentric shaft bearing is arranged on conveying trench bottom, the eccentric shaft bearing and is provided with eccentric wheel rotating shaft, the bias
Wheel is removably mounted in eccentric wheel rotating shaft.
As further improvement of the present invention, in the flask overturning device, it is all provided with the forward and backward outer wall of the sandbox
Have and be respectively provided with cross slider, the forward and backward inwall of the sandbox cover on entablature and sill, the entablature and sill
Under be arranged in parallel, form the track slided for cross slider, one end sealing of the track therebetween;
In the sand fallout device, the sieve plate is provided with block material plate along its width, the block material plate and support spring
Inclination angle is identical.
As further improvement of the present invention, in the flask overturning device, on the lower shoe of the turning arm main body
Uniform turning arm pulley, places uniform base pulley on the base of sandbox, and the turning arm starts before rotation, and the turning arm is slided
Wheel is located at same level with base pulley;
In the sand fallout device, the angle of the block material plate and vertical line is 30~45 °;
The flask overturning device also includes push-in arm and pushing arm, and the push-in arm is used to sandbox being pushed into from base
On turning arm, the pushing arm is used to sandbox being pushed out to base from turning arm;
In the sand fallout device, one end of the connecting rod is fixed on delivery chute base by damper;
In the flask overturning device, the frame lower is provided with telescopic arm base, and described telescopic arm one end is hinged on
On telescopic arm base, the telescopic arm other end is hinged on the upper end of the side plate;
In the sand fallout device, the damper is rubber blanket;
In the flask overturning device, the push-in arm and pushing arm are cylinder or hydraulic cylinder, and the telescopic arm is hydraulic pressure
Cylinder;
In the sand fallout device, the block material plate is included on the first block material plate and the second block material plate, the sieve plate along material
Input is sequentially provided with the first block material plate, the second block material plate, the first block material plate, the second block material to the direction of material output end
Plate is evenly distributed along the length direction of sieve plate.
3. beneficial effect
The technical scheme provided using the present invention, compared with prior art, is had the advantages that:
(1) flask overturning device in the present invention, turning arm is propped up rotation by the elongation of telescopic arm, is opened by sensing
Sensing respectively with the first sensor block, the second sensor block and the 3rd sensor block is closed, control turning arm is rotated in three times, that is, avoids sand
Occurring because of lasting upset moment in case switching process falls the situation of sand, it is ensured that safe and reliable in sandbox switching process, again
Molding sand in sandbox can all be removed.
(2) flask overturning device of the prior art is essentially side turn over, i.e., overturn sandbox from the side of sandbox,
This upset mode is although simple to operate it can be difficult to the disposable whole evacuation of molding sand by sandbox of guarantee, add follow-up people
The workload of work sand removal, and the flask overturning device in the present invention, turning arm is promoted with turning arm and frame by telescopic arm
Pin joint is that circular-rotation is done in the center of circle so that the whole upper shed of sandbox diagonally downward, ensure that disposable by sandbox
Molding sand whole evacuation, reduces labor workload, and due to being rotated using Hydraulic Cylinder turning arm, power is sufficient, and sandbox inclines
Rake angle is big, accurate positioning, compared to the side turn over flask overturning device of existing use reducing motor, averagely saves energy consumption 30%.
(3) the sand fallout device in the present invention, using vibrating mechanism by the material in delivery chute from material input to material
Output end vibration transport, molding sand is slowly moved in the presence of directional vibration on sieve plate, while being filtered, while tiling is opened
Come, it is to avoid the problem of molding sand, which gathers all the time on the sieve plate below sandbox, influences sieve plate filter efficiency, sieve plate is wide along it
Spend direction and be provided with block material plate, block material plate primarily serves the function of stopping casting movement, be easy to lifting machine conveniently, in time will casting
Part is taken away, in summary, and the sand fallout device in the present invention is appropriate for high-volume sand fallout operation.
(4) the sand fallout device in the present invention, on sieve plate, the position further away from direction where material input, material exists
The time vibrated above is more long, thus on sieve plate, at the position in direction where material input, large granular impurity
Little particle is more easily shattered into out-of-size molding sand and is fallen into below sieve plate, sets the through hole on sieve plate in the present invention
It is calculated as being gradually reduced along material input to material output extreme direction, then can be prevented effectively from the appearance of above mentioned problem.
Brief description of the drawings
The broken section that it is sandbox cover at the main structure diagram of embodiment cheek turning device, wherein B that Fig. 1, which is,
Figure;
Fig. 2 is the partial enlarged drawing at A in Fig. 1;
Fig. 3 is the main structure diagram of sand fallout device in embodiment.
Label declaration in accompanying drawing:
1st, turning arm;101st, the first sensor block;102nd, the second sensor block;103rd, the 3rd sensor block;104th, rotary shaft;105、
Rotating disk;106th, entablature;107th, sill;108th, turning arm pulley;109th, sandbox cover;2nd, frame;201st, inductive switch;
202nd, telescopic arm base;3rd, telescopic arm;401st, it is pushed into arm;402nd, pushing arm;5th, base;501st, base pulley;6th, sandbox;601、
Cross slider;7th, sand fallout device;701st, delivery chute;702nd, delivery chute base;703rd, sieve plate;704th, eccentric wheel;705th, motor;706、
Support spring;707th, connecting rod;708th, damper;709th, block material plate;710th, eccentric wheel rotating shaft;711st, material input;712nd, thing
Expect output end.
Embodiment
To further appreciate that present disclosure, the present invention is described in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1
With reference to Fig. 1~3, the wearing piece casting mould turnover sand fallout system of the present embodiment, including flask overturning device and sand fallout
Device 7.Flask overturning device includes turning arm 1, frame 2, telescopic arm 3, base 5 and sandbox 6, and frame 2 is fixed on base 5,
Turning arm 1 is hinged in frame 2, and telescopic arm 3 is connected with turning arm 1, the telescopic arm 3 be used for promote turning arm 1 with turning arm 1 with
The pin joint of frame 2 rotates for the center of circle, and turning arm 1 is used to install sandbox 6.The present embodiment cheek turning device is specially:Rotation
Pivoted arm 1 includes the sandbox cover 109 on top and the turning arm main body of bottom, and turning arm main body includes a lower shoe and side plate, side
The lower end of plate is vertically connected on lower shoe, and the upper end of side plate is connected on sandbox cover 109, and the sandbox cover 109 is up/down perforation
Passage;The bottom of frame 2 is provided with telescopic arm base 202, and the one end of telescopic arm 3 is hinged on telescopic arm base 202, telescopic arm 3
It is hydraulic cylinder that the other end, which is hinged on telescopic arm 3 in the upper end of side plate, the present embodiment, and the hydraulic cylinder is two-stage hydraulic cylinder, two
In the rotation process of level Hydraulic Cylinder telescopic arm 3, by controlling the two-stage hydraulic cylinder in elongation speed not in the same time so that stretch
Contracting arm 3 follows " first quick and back slow " principle in rotation process, and the quick rotation of " first fast " stage telescopic arm 3 can make in sandbox 6
Molding sand it is more, poured out faster out of sandbox 6, the slow rotation of " rear slow " stage telescopic arm 3, can avoid loading molding sand and
The sandbox 6 of casting is because from great, inertia is big, it is impossible to the safety problem that fixed point stops the rotation of telescopic arm 3 and triggered, it is ensured that peace
Full production.Rotary shaft 104 is installed, sandbox cover 109 is rotatably connected in frame 2 by rotary shaft 104 in frame 2;Rotary shaft
Rotating disk 105 is fixed with 104, is provided with the outer surface of rotating disk 105 in sensor block, frame 2 and is fixed with inductive switch
201, the inductive switch 201 is just to the outer surface of rotating disk 105, and inductive switch 201 is connected with the control unit of telescopic arm 3, this reality
It can be optoelectronic induction quick closing valve to apply inductive switch 201 in example, or contact-making switch, inductive switch 201 can control to stretch
Arm 3 is elongated or shortened;In the present embodiment, sensor block includes the first sensor block 101, second being circumferentially arranged along rotating disk 105
The sensor block 103 of sensor block 102 and the 3rd, turning arm 1 starts before rotation, using the point of rotary shaft 104 as center of circle inductive switch 201
The central angle of position and the position of the first sensor block 101 is 105 °, the position of inductive switch 201 and the second sensor block
The central angle of 102 positions is 120 °, the central angle of the position of inductive switch 201 and the position of the 3rd sensor block 103
For 135 °.It is equipped with the forward and backward outer wall of sandbox 6 on cross slider 601, the forward and backward inwall of sandbox cover 109 and is respectively provided with upper horizontal stroke
Beam 106 and sill 107, entablature 106 and sill be arranged in parallel about 107, formed slided for cross slider 601 therebetween
Track, one end sealing of the track, with ensure cross slider 601 will not skid off entablature 106 and be lower between the track that is formed, really
Sandbox 6 is protected to be reliably mounted on turning arm 1.Flask overturning device also includes push-in arm 401 and pushing arm 402, is pushed into arm 401
For sandbox 6 to be pushed into turning arm 1 from base 5, pushing arm 402 is used to sandbox 6 being pushed out to base 5 from turning arm 1
On, it is cylinder that arm 401 and pushing arm 402 are pushed into the present embodiment.Uniform turning arm pulley on the lower shoe of turning arm main body
108, uniform base pulley 501 on the base 5 of sandbox 6 is placed, turning arm 1 starts before rotation, and turning arm pulley 108 is slided with base
Wheel 501 be located at same level, in order to sandbox 6 between turning arm pulley 108 and base pulley 501 slidably.Rotation
Arm 1 starts before rotation, the upper end of sandbox cover 109 to the inclined downward away from the side of sand fallout device 7, be easy to sandbox 6 be lifted into
Go the when of falling sand, sand fallout device 7 is swung in molding sand and the casting side higher along the upper end of sandbox cover 109.
Sand fallout device 7 is located at the side of flask overturning device, and the sand fallout device 7 includes delivery chute 701, supporting mechanism, shaken
Motivation structure and delivery chute base 702, delivery chute 701 by supporting mechanism be arranged on delivery chute base 702 on, delivery chute 701 with
Vibrating mechanism is connected, and the vibrating mechanism is used for the material in delivery chute 701 from the material input 711 of delivery chute 701 to defeated
Send the material output end 712 of groove 701 to vibrate and sieve plate 703 is provided with transport, delivery chute 701, the sieve plate 703 is provided with through hole, should
The aperture of through hole is gradually reduced along material input 711 to the direction of material output end 712.Sand fallout device 7 is specific in the present embodiment
For:Supporting mechanism includes support spring 706 and connecting rod 707, and support spring 706 is overall to incline to the place direction of material output end 712
Tiltedly, the one end of support spring 706 is fixed on delivery chute base 702, and the other end of support spring 706 is fixed on delivery chute 701
Bottom;In order to reduce the noise produced in vibration processes, the one end of connecting rod 707 is fixed on delivery chute base 702 by damper 708
On, damper 708 is the thick rubber blankets of 15cm in the present embodiment, and on the one hand rubber blanket plays cushioning effect to connecting rod 707, protects
Connecting rod 707, on the other hand absorbs the noise sent on connecting rod 707, improves in working environment, the present embodiment, delivery chute
701 rely primarily on support spring 706 and connecting rod 707 is supported on delivery chute base 702, support spring 706 primarily serve make it is defeated
Groove 701 is sent to be vibrated along a certain fixed-direction (i.e. the elongation of support spring 706 and compression direction), so that delivery chute
Orientation conveying occurs for the material in 701, is specially:Molding sand in sandbox 6 is from the material input 711 of delivery chute 701 down to sieve
During one end of plate 703, molding sand can slowly be moved to the other end of sieve plate 703 in the presence of directional vibration, molding sand moving process
Middle one side is filtered, while tiling is come, it is to avoid influence sieve because gathering on molding sand sieve plate 703 all the time below sandbox 6
The problem of 703 filter efficiency of plate, and the large granular impurity and out-of-size molding sand that are left after the filtering of sieve plate 703 are by certainly
The dynamic one end centralized recovery processing being sent on sieve plate 703 away from sandbox 6, the molding sand of size qualification passes through in the lower section of sieve plate 703
Belt conveyor reclaims;The other end of connecting rod 707 is fixed on the bottom of delivery chute 701, connecting rod 707 and support spring 706 or so
It is symmetrical arranged, because connecting rod 707 is a straight-bar, for slab structure, the elasticity of straight-bar is preferably more suitable for vibrated
Support member in journey.In the present embodiment, supporting mechanism includes the combination of four pairs of support springs 706 and connecting rod 707, four pairs of support bullets
Length direction of the combination of spring 706 and connecting rod 707 along the bottom of delivery chute 701 is evenly distributed, can be stably to delivery chute 701
To supporting role, wherein, the combination of a pair of support springs 706 and connecting rod 707 includes a symmetrical support spring 706 He
One connecting rod 707.Vibrating mechanism includes eccentric wheel 704, eccentric wheel rotating shaft 710, eccentric shaft bearing and motor 705, and motor 705 is pacified
Loaded on delivery chute base 702, output wheel is installed on the output shaft of the motor 705, the output wheel passes through belt and eccentric wheel
704 are connected;Eccentric shaft bearing is arranged on the bottom of delivery chute 701, the eccentric shaft bearing and is provided with eccentric wheel rotating shaft 710, eccentric
Wheel 704 is removably mounted in eccentric wheel rotating shaft 710, and the Oscillation Amplitude of vibrating mechanism can not be adjusted mostly in the prior art,
And in the present embodiment, because eccentric wheel 704 is removably mounted in eccentric wheel rotating shaft 710, therefore can be different big by changing
The convenient Oscillation Amplitude for adjusting vibrating mechanism of small eccentric wheel 704, meets the different demands of actual production.The edge of sieve plate 703
Its width is provided with block material plate 709, and block material plate 709 primarily serves stop casting with the directional vibration of delivery chute 701
The function of being moved to the direction away from sandbox 6, be easy to that lifting machine is convenient, in time take casting away, while block material plate 709 is set
Put and the movement of molding sand can not be hindered, therefore in the present embodiment, block material plate 709 is identical with the inclination angle of support spring 706, block material plate
709 be 30~45 ° (30 ° are taken in specific the present embodiment), block material plate 709 and the inclination angle of support spring 706 with the angle of vertical line
Set identical, the angle of block material plate 709 and vertical line is set to 30~45 ° and ensure that block material plate 709 can effectively stop casting
The movement of part, can make molding sand successfully cross block material plate 709 again;In order to ensure stopping the effect of casting movement, block material plate 709 is wrapped
Include and set successively along material input 711 to the direction of material output end 712 on the first block material plate and the second block material plate, sieve plate 703
There are the first block material plate, the second block material plate, the length direction of the first block material plate, the second block material plate along sieve plate 703 is evenly distributed, material
Through-hole aperture is 5~10mm (taking 5mm in specific the present embodiment) on sieve plate 703 between the block material plate of input 711 and first, the
Through-hole aperture is 10~15mm (taking 10mm in specific the present embodiment) on sieve plate 703 between one block material plate and the second block material plate,
Through-hole aperture is that 15~20mm (takes in specific the present embodiment on sieve plate 703 between second block material plate and material output end 712
15mm), on sieve plate 703, the position further away from the place direction of material input 711, the time that material is vibrated above gets over
Long, therefore on sieve plate 703, at the position in the place direction of material input 711, large granular impurity and off-dimension
Molding sand be more easily shattered into little particle and fall into the lower section of sieve plate 703, be by the via design on sieve plate 703 in the present embodiment
It is gradually reduced along material input 711 to the direction of material output end 712, then can be prevented effectively from the appearance of above mentioned problem.
In the present embodiment, delivery chute 701 is driven to be vibrated along a direction by vibrating mechanism, so that sieve plate
Molding sand on 703 occurs to filter molding sand while orientation conveying, so as to effectively remove the impurity being mixed into molding sand, it is to avoid
Using artificial separation, production efficiency is improved.
The wearing piece casting application method of mould turnover sand fallout system of the present embodiment, comprises the following steps:Step 1: installing
Sandbox 6:As shown in figure 1, the sandbox 6 after moulding by casting is transported on base 5, sandbox 6 is under the lasting promotion of push-in arm 401
Slided into along base pulley 501 up on the turning arm pulley 108 in turning arm main body, sandbox 6 continues in turning arm pulley 108
On slide to the side plate of turning arm main body, now the cross slider 601 on the forward and backward outer wall of sandbox 6 slips into entablature in sandbox cover 109
The track formed between 106 and sill 107, until the bottom surface of sandbox 6 is fully located on the lower shoe of turning arm main body, now
Sandbox 6 is installed on turning arm 1;Step 2: turning arm 1 is rotated:Then, telescopic arm 3 starts elongation, promotes turning arm 1 slow
Slow to rise and keep rotating, because rotary shaft 104 and telescopic arm 3 are connected, therefore rotary shaft 104 is protected with the rotation of turning arm 1
Synchronous axial system is held, as shown in Fig. 2 in the rotation process of rotary shaft 104, rotating disk 105 synchronously rotates, rotating disk 105 turns successively
Dynamic 105 °, 120 ° and 135 °, above three angle is three limit points of the rotational angle of turning arm 1 so that inductive switch 201 according to
It is secondary to sense the first sensor block 101, the second sensor block 102 and the 3rd sensor block 103, when inductive switch 201 senses the first sense
When answering block 101, the control telescopic arm 3 of inductive switch 201 stops extending and keeps continuing to extend after 2min, when inductive switch 201 is felt
When should be to the second sensor block 102, the control telescopic arm 3 of inductive switch 201 stops extending and keeps continuing to extend after 1min, works as sensing
When switch 201 senses three sensor blocks 103, the control telescopic arm 3 of inductive switch 201 stops extending and keeps starting to receive after 5min
Contracting so that turning arm 1 is turned back to home position, wherein:After turning arm 1 rotates 105 ° and keeps 2min, the molding sand in sandbox 6
70% is about eliminated, after turning arm 1 rotates 120 ° and keeps 1min, the molding sand in sandbox 6 is about eliminated 90%, works as turning arm
1 rotates 135 ° and keeps after 5min, and the molding sand in sandbox 6 is completely removed;Turning arm 1 is turned back to behind home position, and sandbox 6 exists
Slide into base 5, be then transported to away out of turning arm 1 under the lasting promotion of pushing arm 402.
Step 3: shake out:As shown in figure 3, sandbox 6 is with the rotation process of turning arm 1, molding sand in sandbox 6 and
Casting pours into the material input 711 of sand fallout device 7 from the upper shed of sandbox 6 along sandbox cover 109, and molding sand and casting are in sieve plate
Vibrate and transport to the direction of material output end 712 along material input 711 on 703, vibration transportation Sand, which is shaken, to be dissipated simultaneously
Through hole on sieve plate 703 falls into the lower section of sieve plate 703 and collected, and casting is stopped simultaneously by the first block material plate, the second block material plate
Taken away by lifting machine out of delivery chute 701.
Flask overturning device in the present embodiment, turning arm 1 is propped up rotation by the elongation of telescopic arm 3, passes through sensing
201 sensing respectively with the first sensor block 101, the second sensor block 102 and the 3rd sensor block 103 is switched, 1 point three of turning arm is controlled
It is secondary to rotate, that is, allow the mould turnover in three times of sandbox 6, that is, avoiding in the switching process of sandbox 6 occurring because of lasting upset moment falls the feelings of sand
Condition, it is ensured that safe and reliable in the switching process of sandbox 6, again can all remove the molding sand in sandbox 6;Sand of the prior art
Case turning device is essentially side turn over, i.e., overturn sandbox 6 from the side of sandbox 6, although the operation letter of this upset mode
It is single to add the workload of subsequent artefacts' sand removal it can be difficult to ensure the disposable whole evacuation of molding sand by sandbox 6, and this reality
The flask overturning device in example is applied, promotes turning arm 1 to do circle using turning arm 1 and the pin joint of frame 2 as the center of circle by telescopic arm 3
Week rotates so that the whole upper shed of sandbox 6 diagonally downward, ensure that the disposable whole evacuation of molding sand by sandbox 6, subtract
Lack labor workload, and due to promoting turning arm 1 to rotate using hydraulic cylinder (telescopic arm 3), power is sufficient, the inclination angle of sandbox 6
Degree is big, accurate positioning, compared to the side turn over flask overturning device of existing use reducing motor, averagely saves energy consumption 30%.
Sand fallout device 7 in the present embodiment, using vibrating mechanism by the material in delivery chute 701 from material input 711
Vibrate and transport to material output end 712, molding sand is slowly moved in the presence of directional vibration on sieve plate 703, while filtered,
While tiling is come, it is to avoid influence the filter efficiency of sieve plate 703 because gathering on molding sand sieve plate 703 all the time below sandbox 6
The problem of, sieve plate 703 is provided with block material plate 709 along its width, and block material plate 709 primarily serves the work(for stopping casting movement
Can, it is easy to lifting machine conveniently, in time by casting to take away, in summary, the sand fallout device 7 in the present embodiment is appropriate for large quantities of
Measure sand fallout operation.
Embodiment 2
The wearing piece casting mould turnover sand fallout system of the present embodiment, its structure is substantially the same manner as Example 1, its difference
It is:In flask overturning device, push-in arm 401 and pushing arm 402 are hydraulic cylinder;
In sand fallout device 7, the angle of block material plate 709 and vertical line is 45 °;The block material plate of material input 711 and first it
Between sieve plate 703 on through-hole aperture be 10mm, through-hole aperture is on the sieve plate 703 between the first block material plate and the second block material plate
Through-hole aperture is 20mm on 15mm, the sieve plate 703 between the second block material plate and material output end 712.
Embodiment 3
The wearing piece casting mould turnover sand fallout system of the present embodiment, its structure is substantially the same manner as Example 1, its difference
It is:In order to ensure not being mixed into short grained metal impurities in the molding sand that is recovered, magnetic separation is provided with the top of material input 711
Machine, magnetic separator is used to the molding sand entered in delivery chute 701 carrying out magnetic separation processing, removes the metal impurities of molding sand small particles;
In order to improve the working environment at scene, it is to avoid air pollution, dust shield is additionally provided with the top of delivery chute 701, dust shield is played
The effect of the top dust laden air of delivery chute 701 is absorbed, while not only heat is big for the casting just cast, but also one can be given out
A little toxic and harmful gas, set dust shield to also act as the effect for taking toxic and harmful gas away.
Schematical above that the present invention and embodiments thereof are described, the description does not have restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So, if the common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, are designed and the technical scheme without creative
Similar frame mode and embodiment, all should belong to protection scope of the present invention.
Claims (10)
1. a kind of application method of wearing piece casting mould turnover sand fallout system, it is characterised in that comprise the following steps:
Step 1: installing sandbox (6);
Step 2: turning arm (1) is rotated;
Step 3: shake out.
2. the application method of wearing piece casting mould turnover sand fallout system according to claim 1, it is characterised in that:
In the step one:Sandbox (6) after moulding by casting is transported on base (5), and sandbox (6) is in push-in arm (401)
It is lasting promote under slided into along base pulley (501) up on the turning arm pulley (108) in turning arm main body, sandbox (6) after
Continue the side plate that turning arm main body is slided on turning arm pulley (108), now the cross slider (601) on sandbox (6) forward and backward outer wall
The track formed between sandbox cover (109) interior entablature (106) and sill (107) is slipped into, until the bottom surface of sandbox (6) is complete
On the lower shoe of turning arm main body, now sandbox (6) is installed on turning arm (1).
3. the application method of wearing piece casting mould turnover sand fallout system according to claim 2, it is characterised in that:
In the step 2:Telescopic arm (3) starts elongation, promotes turning arm (1) slowly to rise and keep rotating, rotary shaft
(104) kept with the rotation of turning arm (1) in synchronous axial system, rotary shaft (104) rotation process, rotating disk (105) does synchronization
Rotate, rotating disk (105) rotates 105 °, 120 ° and 135 ° successively, and above three angle is three of turning arm (1) rotational angle
Limit point so that inductive switch (201) senses the first sensor block (101), the second sensor block (102) and the 3rd sensor block successively
(103), when inductive switch (201) senses the first sensor block (101), inductive switch (201) control telescopic arm (3) stops stretching
It is long, it is rear to continue to extend, when inductive switch (201) senses the second sensor block (102), inductive switch (201) control telescopic arm
(3) elongation is stopped, it is rear to continue to extend, when inductive switch (201) senses the 3rd sensor block (103), inductive switch (201) control
Telescopic arm (3) processed stops elongation, after start to shrink at so that turning arm (1) is turned back to home position;Turning arm (1) is turned back to original
Behind beginning position, sandbox (6) is slided on base (5) under the lasting promotion of pushing arm (402) out of turning arm (1), is then transported
It is defeated to walking.
4. the application method of wearing piece casting mould turnover sand fallout system according to claim 3, it is characterised in that:
In the step 3:Sandbox (6) is with turning arm (1) rotation process, and molding sand and casting in sandbox (6) are from sandbox
(6) material input (711) of sand fallout device (7) is poured into upper shed along sandbox cover (109), and molding sand and casting are in sieve plate
(703) vibrate and transport to the direction of material output end (712) along material input (711) on, vibrate transportation Sand quilt
The scattered and through hole on sieve plate (703) that shakes falls into below sieve plate (703) and collected, and casting is by the first block material plate, second gear
Thing plate stops and taken away by lifting machine out of delivery chute (701).
5. the application method of wearing piece casting mould turnover sand fallout system according to claim 4, it is characterised in that:It is described resistance to
Grind part casting includes flask overturning device and sand fallout device (7) with mould turnover sand fallout system;
The flask overturning device includes turning arm (1), frame (2), telescopic arm (3), base (5) and sandbox (6), the frame
(2) it is fixed on base (5), the turning arm (1) is hinged in frame (2), the telescopic arm (3) is connected with turning arm (1),
The telescopic arm (3) is used to promote turning arm (1) to rotate as the center of circle using turning arm (1) and the pin joint of frame (2);The turning arm
(1) it is used to sandbox (6) be installed;
The sand fallout device (7) is located at the side of flask overturning device, and the sand fallout device (7) includes delivery chute (701), support machine
Structure, vibrating mechanism and delivery chute base (702), the delivery chute (701) are arranged on delivery chute base (702) by supporting mechanism
On, delivery chute (701) is connected with vibrating mechanism, and the vibrating mechanism is used for the material in delivery chute (701) from delivery chute (701)
Material input (711) vibrate and transport to the material output end (712) of delivery chute (701), is provided with the delivery chute (701)
Sieve plate (703), the sieve plate (703) is provided with through hole, and the aperture of the through hole is along material input (711) to material output end
(712) direction is gradually reduced.
6. the application method of wearing piece casting mould turnover sand fallout system according to claim 4, it is characterised in that:The sand
In case turning device, the turning arm (1) includes the sandbox cover (109) on top and the turning arm main body of bottom, the turning arm
Main body includes a lower shoe and side plate, and the lower end of the side plate is vertically connected on lower shoe, and the upper end of the side plate is connected
On sandbox cover (109), the sandbox cover (109) is the passage of up/down perforation;Rotary shaft (104) is installed on the frame (2),
The sandbox cover (109) is rotatably connected in frame (2) by rotary shaft (104);
In the sand fallout device (7), the supporting mechanism includes support spring (706) and connecting rod (707), the support spring
(706) overall to be tilted to direction where material output end (712), support spring (706) one end is fixed on delivery chute base
(702) on, support spring (706) other end is fixed on the bottom of delivery chute (701), and described connecting rod (707) one end is fixed on defeated
Send on bottom land seat (702), connecting rod (707) other end is fixed on the bottom of delivery chute (701), the connecting rod (707) and support bullet
Spring (706) is symmetrical set.
7. the application method of wearing piece casting mould turnover sand fallout system according to claim 4, it is characterised in that:
In the flask overturning device, rotating disk (105) is fixed with the rotary shaft (104), rotating disk (105) outer surface
On be provided with sensor block, the frame (2) and be fixed with inductive switch (201), the inductive switch (201) is just to rotating disk
(105) outer surface, inductive switch (201) is connected with the control unit of telescopic arm (3);
In the sand fallout device (7), the supporting mechanism includes the combination of at least two pairs support springs (706) and connecting rod (707),
Length direction of the combination of at least two pairs support springs (706) and connecting rod (707) along delivery chute (701) bottom is uniformly arranged
Row.
8. the application method of wearing piece casting mould turnover sand fallout system according to claim 4, it is characterised in that:
In the flask overturning device, the sensor block include be circumferentially arranged along rotating disk (105) the first sensor block (101),
Second sensor block (102) and the 3rd sensor block (103), the turning arm (1) start before rotation, with rotary shaft (104) point
Central angle for center of circle inductive switch (201) position and the first sensor block (101) position is 105 °, inductive switch
(201) central angle of position and the second sensor block (102) position be 120 °, inductive switch (201) position with
The central angle of the 3rd sensor block (103) position is 135 °;
In the sand fallout device (7), the vibrating mechanism includes eccentric wheel (704), eccentric wheel rotating shaft (710), eccentric shaft bearing
With motor (705), the motor (705) is installed on delivery chute base (702), is provided with the output shaft of the motor (705)
Output wheel, the output wheel is connected by belt with eccentric wheel (704);The eccentric shaft bearing is arranged on delivery chute (701) bottom,
Eccentric wheel rotating shaft (710) is installed, the eccentric wheel (704) is removably mounted on eccentric wheel rotating shaft on the eccentric shaft bearing
(710) on.
9. the application method of wearing piece casting mould turnover sand fallout system according to claim 4, it is characterised in that:
In the flask overturning device, cross slider (601), the sandbox cover are equipped with the forward and backward outer wall of the sandbox (6)
(109) entablature (106) and sill (107), the entablature (106) and sill are respectively provided with forward and backward inwall
(107) it be arranged in parallel up and down, forms the track slided for cross slider (601), one end sealing of the track therebetween;
In the sand fallout device (7), the sieve plate (703) is provided with block material plate (709), the block material plate along its width
(709) it is identical with the inclination angle of support spring (706).
10. the application method of the wearing piece casting mould turnover sand fallout system according to any one in claim 4-9, it is special
Levy and be:
In the flask overturning device, uniform turning arm pulley (108) on the lower shoe of the turning arm main body places sandbox
(6) uniform base pulley (501) on base (5), the turning arm (1) starts before rotation, the turning arm pulley (108) with
Base pulley (501) is located at same level;
In the sand fallout device (7), the block material plate (709) and the angle of vertical line are 30~45 °;
The flask overturning device also includes push-in arm (401) and pushing arm (402), and the push-in arm (401) is used for sandbox
(6) it is pushed into from base (5) on turning arm (1), the pushing arm (402) is used to sandbox (6) being pushed out to from turning arm (1)
On base (5);
In the sand fallout device (7), one end of the connecting rod (707) is fixed on delivery chute base (702) by damper (708)
On;
In the flask overturning device, frame (2) bottom is provided with telescopic arm base (202), described telescopic arm (3) one end
It is hinged on telescopic arm base (202), telescopic arm (3) other end is hinged on the upper end of the side plate;
In the sand fallout device (7), the damper (708) is rubber blanket;
In the flask overturning device, the push-in arm (401) and pushing arm (402) are cylinder or hydraulic cylinder, the telescopic arm
(3) it is hydraulic cylinder;
In the sand fallout device (7), the block material plate (709) includes the first block material plate and the second block material plate, the sieve plate (703)
On be sequentially provided with the first block material plate, the second block material plate along material input (711) to the direction of material output end (712), it is described
The length direction of first block material plate, the second block material plate along sieve plate (703) is evenly distributed.
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CN201710500074.5A CN107262681B (en) | 2015-12-31 | 2015-12-31 | A kind of wearing piece casting application method of mould turnover sand fallout system |
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CN201710500074.5A CN107262681B (en) | 2015-12-31 | 2015-12-31 | A kind of wearing piece casting application method of mould turnover sand fallout system |
CN201511032398.8A CN105414493B (en) | 2015-12-31 | 2015-12-31 | A kind of wearing piece casting mould turnover sand fallout system |
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Cited By (2)
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CN109014078A (en) * | 2018-09-12 | 2018-12-18 | 侯莉芝 | A kind of factory's moulding machine |
CN112024851A (en) * | 2020-09-04 | 2020-12-04 | 管冰倩 | Water pump impeller casting molding shakeout processing system |
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CN106424564B (en) * | 2016-11-29 | 2018-05-18 | 河南科技大学 | A kind of mould rollover unit that there is casting and accept |
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CN105414493A (en) | 2016-03-23 |
CN105414493B (en) | 2017-06-30 |
CN107262681B (en) | 2019-01-22 |
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PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A method of using a flip box sand removal system for wear-resistant casting Granted publication date: 20190122 Pledgee: Dangtu County sub branch of China Post Savings Bank Co.,Ltd. Pledgor: MA'ANSHAN HAITIAN HEAVY INDUSTRY TECHNOLOGY DEVELOPMENT Co.,Ltd. Registration number: Y2024980002054 |