CN119175362A - Lost foam casting production line - Google Patents
Lost foam casting production line Download PDFInfo
- Publication number
- CN119175362A CN119175362A CN202311513831.4A CN202311513831A CN119175362A CN 119175362 A CN119175362 A CN 119175362A CN 202311513831 A CN202311513831 A CN 202311513831A CN 119175362 A CN119175362 A CN 119175362A
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- Prior art keywords
- sand
- driving
- station
- box
- molding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D47/00—Casting plants
- B22D47/02—Casting plants for both moulding and casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/28—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing
- B22C15/30—Compacting by different means acting simultaneously or successively, e.g. preliminary blowing and finally pressing by both pressing and jarring devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/14—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material
- B22C5/16—Equipment for storing or handling the dressed mould material, forming part of a plant for preparing such material with conveyors or other equipment for feeding the material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/02—Vibratory apparatus specially designed for shaking out flasks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
- B22D29/04—Handling or stripping castings or ingots
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D33/00—Equipment for handling moulds
- B22D33/02—Turning or transposing moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D35/00—Equipment for conveying molten metal into beds or moulds
- B22D35/04—Equipment for conveying molten metal into beds or moulds into moulds, e.g. base plates, runners
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The application relates to a lost foam casting production line, which belongs to the technical field of casting and comprises a modeling conveying line and a plurality of pouring conveying lines which are arranged side by side, wherein one end of the modeling conveying line and one end of the plurality of pouring conveying lines are provided with a same first conveying rail, the other end of the modeling conveying line is provided with a same second conveying rail, a first transfer trolley is arranged on the first conveying rail in a sliding manner along the length direction of the first conveying rail, a second transfer trolley is arranged on the second conveying rail in a sliding manner along the length direction of the second conveying rail, a box turning station, a bottom sand station, a loading station, a sand filling station and a sand mixing station are sequentially arranged on the modeling conveying line, a pouring station is arranged on the pouring conveying line, one side of the first conveying rail, which is far away from the modeling conveying line, is provided with a first pushing piece for pushing a sand box onto the modeling conveying line from the first transfer trolley, and a second pushing piece for pushing the sand box onto the pouring conveying line from the second transfer trolley is arranged on the second transfer trolley. The application can improve the production efficiency of the casting production line.
Description
Technical Field
The application relates to the field of casting, in particular to a lost foam casting production line.
Background
The lost foam casting (also called negative pressure dry sand full mold casting) is full mold casting of foam plastic molds by adopting a non-adhesive sand combined vacuumizing technology, and is a novel casting method for forming castings after bonding and combining foam molds with the sizes and the shapes similar to those of castings into mold clusters, brushing refractory coating, drying, burying the mold clusters in dry quartz sand for vibration molding, pouring under negative pressure, occupying the mold positions by liquid metal, and solidifying and cooling.
The existing lost foam casting production line is provided with a closed annular conveying line, a sand adding molding station, a pouring station, a sand discharging station and the like are sequentially arranged on the annular conveying line, sand boxes are arranged at intervals on annular production, and if the sand boxes are driven to intermittently move on the conveying line through a driving mechanism, the sand boxes sequentially pass through the stations, and finally casting is completed.
With respect to the above technical solution, the inventor considers that only one sand box can be cast at the same time in the production process, and compared with the time required for completing other single processes, the time required for completing casting is longer, which results in that after the process before the casting process is completed, the casting can be continued after the former sand box is waited for completing casting, thereby reducing the overall production efficiency of the production line.
Disclosure of Invention
In order to improve the production efficiency of the production line, the application provides a lost foam casting production line.
The application provides a lost foam casting production line, which adopts the following technical scheme:
The utility model provides a lost foam casting production line, includes molding transfer chain and a plurality of pouring transfer chain that set up side by side, the one end of molding transfer chain and a plurality of pouring transfer chain is equipped with same first transfer rail, and the other end is equipped with same second transfer rail, follow self length direction on the first transfer rail and slide and be provided with first transfer dolly, follow self length direction on the second transfer rail and slide and be provided with the second transfer dolly, set gradually on the molding transfer chain and turn over case station, bed sand station, dress piece station, sand filling station and sand station, be equipped with the pouring station on the pouring transfer chain, one side that the molding transfer chain was kept away from to first transfer dolly is equipped with and is used for pushing the sand box to the first propelling movement piece on the molding transfer chain, be equipped with on the second transfer dolly and be used for transporting the sand box to the second propelling movement piece on the pouring transfer chain from the second transfer dolly.
Through adopting above-mentioned technical scheme, molding transfer chain, a plurality of pouring transfer chain and first conveying track and second conveying track form a endless conveying circuit. When the sand box is used for the first time, the sand box is placed on a molding conveying line, the box is turned when the sand box reaches a box turning station, residual sand in the sand box is poured out, then the bottom sand is filled and compacted when the sand box reaches a bottom sand station, manual die filling is carried out when the sand box passes through a loading station, a lost foam model is placed above the bottom sand, then sand filling and molding and surface sand adding and finishing are carried out when the sand box passes through a sand filling station and a surface sand station in sequence, thus molding of the sand box is completed, the sand box after molding is moved on a second conveying track through a second transfer trolley, the second pushing piece can push the sand box onto a pouring conveying line, the pouring procedure is completed when the sand box passes through the pouring station, the sand box after pouring is completed continues to move along the pouring conveying line and is cooled until the sand box reaches the first conveying track, the sand box is carried by the first transfer trolley and is transferred to one side of the molding conveying line, and the sand box is pushed onto the molding conveying line through a first pushing piece, the box turning station is moved, and the molding sand box and the casting is poured out. Through setting up many pouring conveyer belts and a plurality of pouring station, can pour a plurality of sand boxes simultaneously at the same moment, be favorable to saving the pouring time to improve the holistic production efficiency of casting production line.
Optionally, the box station department of turning over is equipped with the box machine of turning over, one side that the box machine of turning over kept away from the pouring transfer chain is equipped with vibration shakeout machine for accept sand and foundry goods that the sand box was emptyd when turning over, the molding sand discharge end of vibration shakeout machine is connected with the molding sand recovery mechanism, the foundry goods discharge end of vibration shakeout machine is equipped with foundry goods conveyor.
Through adopting above-mentioned technical scheme, when the sand box passes through the box station of turning over, the box machine of turning over is operated its box that turns over, pour moulding sand and foundry goods in the sand box into vibration shakeout machine, shake shakeout machine carries out the breakage of sand lump to the moulding sand to separate moulding sand and foundry goods, the moulding sand after the separation gets into the recycle of moulding sand recovery mechanism realization moulding sand through the moulding sand discharge end, the foundry goods gets into the transportation that foundry goods conveyor realized the foundry goods through the foundry goods discharge end, thereby realize the automatic material of receiving of foundry goods and the recycle of moulding sand, further improve the holistic production efficiency of production line.
Optionally, the molding sand recycling mechanism comprises a vibrating screen, a water cooling fan, a cooling bed and a scraper distributor which are sequentially arranged, wherein the input end of the vibrating screen is communicated with the molding sand discharge end of the vibrating shakeout machine, and the output end of the scraper distributor is provided with a molding sand lifting mechanism for providing required molding sand for the bottom sand station, the sand filling station and the face sand station.
Through adopting above-mentioned technical scheme, the molding sand of retrieving gets into the shale shaker and sieves, and the molding sand of screening completion is through water-cooling fan, cooling back of cooling bed, carries out evenly spreading and transports the molding sand to molding sand hoist mechanism through the scraper blade tripper to the molding sand, realizes the recovery feed and the cyclic utilization of molding sand.
Optionally, the bottom sand station and the sand filling station department are equipped with the plain bumper, molding sand hoist mechanism includes lifting machine and blowing storehouse, the input of lifting machine and the output intercommunication of scraper blade tripper, the input of blowing storehouse and the output intercommunication of lifting machine, the output of blowing storehouse is located directly over the plain bumper, be equipped with the hold-down mechanism who is used for compressing tightly the sand box on the plain bumper.
Through adopting above-mentioned technical scheme, when the sand box removes to bottom sand station and sand filling station department, the sand box is located the plain bumper, and the lifting machine lifts the molding sand of scraper blade tripper output to in the blowing storehouse, and the blowing storehouse pours into molding sand into the sand box. After the sand box is injected with the corresponding molding sand, the pressing mechanism presses the sand box, and the compaction table is used for compacting the molding sand in the sand box. Through hold-down mechanism's compaction effect, reduce the shake-up platform and shake up the possibility that the sand box takes place the displacement on shake-up platform when carrying out molding sand shake-up, and then reduce the possibility that the sand box drops from shake-up platform to guarantee the compaction effect of molding sand.
Optionally, hold-down mechanism is including locating the mount on the jolt ramming platform lateral wall and locating the connecting rod on the mount, the connecting rod rotates to be connected on the mount, the one end downside that the connecting rod is close to the jolt ramming platform is equipped with the compact heap, the one end downside that the compact heap was kept away from to the connecting rod is equipped with the lifter, be equipped with the lift driving piece that is used for driving the lifter to go up and down on the mount.
Through adopting above-mentioned technical scheme, when the lift driving piece starts and drives the lifter and rise, the connecting rod takes place to rotate, drives the compact heap and moves down, until the compact heap supports the top of tight sand box, and then realizes compressing tightly the purpose of sand box. Simple structure, convenient operation.
Optionally, be equipped with the stop gear who is used for carrying out spacing to the sand box bottom on the mesa of plain bumper, stop gear includes four spacing angles with sand box angle end looks adaptation, be equipped with on the plain bumper and be used for driving four spacing angles and draw in simultaneously and be close to or expand the actuating mechanism who keeps away from outward.
By adopting the technical scheme, when the sand box to be tapped moves towards the tap platform, the four limit angles are in a scattered state, the distance between two adjacent limit angles is larger, so that the sand box to be tapped passes through the space between the two limit angles, when the sand box moves to the center of the tap platform, the driving mechanism is started to drive the four limit angles to be simultaneously and inwards closed until the limit angles are abutted with the bottom angle ends of the adjacent corresponding sand boxes, the limit of the sand box is realized, and the possibility of relative displacement between the sand box and the tap platform in vibration is further reduced. After compaction is completed, the driving mechanism is started to drive the four limiting angles to be dispersed outwards and away from each other simultaneously, so that intermittent movement of the sand box on the molding conveying line is facilitated, and meanwhile, the next sand box to be compacted can be conveniently moved to the compaction table through the limiting angles.
Optionally, actuating mechanism includes the drive plate that two symmetries set up, the drive plate sets up along the width direction of plain bumper, the drive plate slides along the length direction of plain bumper and sets up in the inside of plain bumper, be equipped with the accommodation space that is used for holding the drive plate in the plain bumper, be equipped with the diagonal guide way that corresponds the setting with spacing angle on the mesa of plain bumper, diagonal guide way and accommodation space intercommunication, wear to be equipped with the movable rod in the diagonal guide way, the bottom of movable rod is along the length direction of drive plate and the drive plate sliding connection who corresponds, the top of movable rod is fixed with the bottom central authorities of corresponding spacing angle, the length direction of diagonal guide way is the same with the diagonal line direction of four spacing angles, be equipped with in the accommodation space and be used for driving the drive assembly that the drive plate is close to in opposite directions or keep away from.
By adopting the technical scheme, when the driving assembly drives the driving plate to approach in opposite directions, the driving plate drives the moving rods on two sides of the driving assembly to approach in opposite directions, the moving rods gradually draw close and shrink along the length direction of the diagonal guide groove under the guiding action of the diagonal guide groove, and when the driving assembly drives the driving plate to depart away from the driving plate, the driving plate drives the moving rods on two sides of the driving assembly to depart from the driving plate, and the moving rods gradually expand and depart from the driving plate along the length direction of the diagonal guide groove under the guiding action of the diagonal guide groove, so that the aim of driving four limiting angles to retract and approach or expand and depart simultaneously is fulfilled.
Optionally, the drive assembly is including locating driving motor and the initiative bevel gear in the accommodation space, initiative bevel gear and driving motor's output coaxial fixation, initiative bevel gear meshes simultaneously and has two driven bevel gears of relative setting, driven bevel gear's big head end coaxial fixation has the double-screw bolt, the double-screw bolt rotates along the length direction of plain bumper table and sets up in the accommodation space, driven bevel gear's one end threaded connection is kept away from to the double-screw bolt has the screw sleeve, be equipped with the slider on the screw sleeve, slider and the inner wall sliding connection of accommodation space, one end and the one side central authorities of adjacent drive plate that the screw sleeve kept away from the double-screw bolt are connected.
Through adopting above-mentioned technical scheme, when driving motor rotates, drive bevel gear rotates and drives two driven bevel gears and rotate, two driven bevel gears rotate and drive the double-screw bolt that corresponds respectively and rotate, the double-screw bolt rotates and drives the screw thread sleeve and remove along the length direction of plain bumper, thereby realize driving the drive plate and be close to in opposite directions or keep away from the purpose through a drive source, and then realize accomplishing the purpose that draws in and expands outward and keep away from through four spacing angles of drive source drive, the installation quantity of drive source has been saved, the energy efficiency utilization has been improved, and guarantee the synchronous rate that four spacing angles removed, guarantee that four spacing angles centre gripping is in place simultaneously.
Optionally, the diapire slope setting of accommodation space, the diapire of drive plate leaves certain interval with the diapire of accommodation space, one side of plain bumper is equipped with the deashing mouth that is linked together with the accommodation space, the deashing mouth is located the slope lower extreme of accommodation space diapire just the lower extreme of deashing mouth is not higher than the slope lower extreme of accommodation space diapire.
Through adopting above-mentioned technical scheme, the dust that produces in the workshop gets into the accommodation space through diagonal guide slot to along the diapire whereabouts in accommodation space, finally follow deashing mouth department and discharge, reduce the possibility that produces the deposition in the accommodation space, guarantee that the drive plate can remove smoothly.
In summary, the present application includes at least one of the following beneficial technical effects:
1. By arranging a plurality of pouring conveyor belts and a plurality of pouring stations, a plurality of sand boxes can be poured at the same time, so that the casting time is saved, and the overall production efficiency of a casting production line is improved;
2. When the sand box moves to the center of the compaction table, the driving mechanism is started to drive the four limiting angles to be simultaneously and inwards closed until the limiting angles are abutted with the bottom angle ends of the adjacent corresponding sand boxes, so that the sand box is limited, and the possibility of relative displacement between the sand box and the compaction table during vibration is further reduced. After compaction is completed, the driving mechanism is started to drive the four limiting angles to be dispersed outwards and away from each other simultaneously, so that intermittent movement of the sand box on the molding conveying line is facilitated, and meanwhile, the next sand box to be compacted can be conveniently moved to the compaction table through the limiting angles.
3. Through driving motor, driving bevel gear, driven bevel gear, double-screw bolt and screw sleeve's setting, when driving motor rotates, drive driving bevel gear rotates, driving bevel gear rotates and drives two driven bevel gears and rotate, two driven bevel gears rotate and drive corresponding double-screw bolt respectively and rotate, the double-screw bolt rotates and drives screw sleeve and remove along the length direction of plain bumper, thereby realize driving the drive plate to be close to in opposite directions or the purpose that keeps away from dorsad through a drive source, and then realize accomplishing the purpose that draws in and expands away from outward through four spacing angles of drive source drive, the quantity of installation of drive source has been saved, and energy efficiency utilization has been improved, and guarantee the synchronous rate that four spacing angles removed, guarantee that four spacing angles centre gripping are in place simultaneously.
Drawings
Fig. 1 is a schematic overall structure of an lost foam casting line according to an embodiment of the present application.
Fig. 2 is a schematic structural view of a medium-sized sand reclamation mechanism embodying an embodiment of the present application.
Fig. 3 is a schematic structural view of a medium sand lifting mechanism embodying the present application.
Fig. 4 is a schematic view of the structure of the compaction table and compaction mechanism according to an embodiment of the present application.
Fig. 5 is a cut-away view of the internal construction of a tapping station embodying an embodiment of the present application.
Fig. 6 is a schematic view of a driving mechanism in an embodiment of the present application.
Figure 7 is a cut-away view of the internal construction of a dust cap embodying an embodiment of the application to reveal the specific construction of the drive assembly.
The reference numerals are 1, a molding conveying line, 11, a box turning station, 111, a box turning machine, 112, a vibration shakeout machine, 113, a casting conveying device, 12, a bottom sand station, 13, a loading station, 14, a sand filling station, 15, a face sand station, 2, a casting conveying line, 21, a casting station, 3, a first conveying track, 31, a first transfer trolley, 32, a first pushing piece, 4, a second conveying track, 41, a second transfer trolley, 411, a second pushing piece, 5, a sand recycling mechanism, 51, a vibrating screen, 52, a water cooling fan, 53, a cooling bed, 54, a scraper distributor, 6, a sand lifting mechanism, 61, a lifting machine, 62, a discharging bin, 7, a vibrating table, 71, a compacting mechanism, 711, a fixing frame, 712, a connecting rod, 713, a compacting block 714, a lifting rod, 715, a lifting driving member, 72, a containing space, 721, a dust cover, 7211, a dodging hole, 73, a diagonal guide groove, 74, a port, 8, a limiting mechanism, 81, a limiting angle, 82, a motor 8483, a driving sleeve 841, a driving bevel gear, 845, a driving sleeve 845, a driving bevel gear, a driving member, a driving sleeve 841, a driving bevel gear, a driving member, a driving sleeve 845, a driving screw, a driving member, a driving screw, a 841.
Detailed Description
The present application will be described in further detail with reference to fig. 1-7.
The embodiment of the application discloses a lost foam casting production line. Referring to fig. 1, a lost foam casting production line comprises a molding conveying line 1 and a plurality of pouring conveying lines 2 which are arranged side by side, wherein one ends of the molding conveying line 1 and the pouring conveying lines 2 are provided with a first conveying rail 3, the other ends of the molding conveying line 1 and the pouring conveying lines 2 are provided with a second conveying rail 4, a first transfer trolley 31 is arranged on the first conveying rail 3 in a sliding manner along the length direction of the first conveying rail, and a second transfer trolley 41 is arranged on the second conveying rail 4 in a sliding manner along the length direction of the second conveying rail.
Referring to fig. 1, a box turning station 11, a bottom sand station 12, a loading station 13, a sand filling station 14 and a sand mixing station 15 are sequentially arranged on a molding conveying line 1, a plurality of pouring stations 21 are arranged on each pouring conveying line 2, a first pushing piece 32 for pushing sand boxes from a first transfer trolley 31 to the molding conveying line 1 is arranged on one side, far away from the molding conveying line 1, of a first conveying rail 3, and a second pushing piece 411 for pushing the sand boxes from a second transfer trolley 41 to the pouring conveying line 2 is arranged on a second transfer trolley 41. In this embodiment, the first pushing member 32 and the second pushing member 411 may be one of a pneumatic push rod, an electric push rod and a hydraulic push rod.
The shaping conveyor line 1, the plurality of casting conveyor lines 2 and the first conveyor rail 3 and the second conveyor rail 4 form a circulating conveyor circuit. When the casting machine is used for the first time, the casting box is placed on the casting conveying line 1, the casting box is turned over when the casting box reaches the turning station 11, residual sand in the casting box is poured out, then the casting box is filled with the bottom sand and is compacted when the casting box reaches the bottom sand station 12, manual die filling is carried out when the casting box passes through the die filling station 13, the lost foam model is placed above the bottom sand, then the casting box is filled with molding sand and the molding is carried out and finished through the sand filling station 14 and the face sand station 15 in sequence, so that the casting box is molded, the casting box after molding is moved on the second conveying track 4 through the second transfer trolley 41, the casting box can be pushed onto the casting conveying line 2 through the second pushing piece 411, the casting process is finished when the casting box passes through the casting station 21, the casting box after casting is finished continues to move along the casting conveying line 2 and is cooled until the casting box reaches one side of the casting conveying line 1 through the first pushing piece 32, the casting box is carried by the first transfer trolley 31 and is transferred to one side of the casting conveying line 1, and the casting box is carried out by the turning station 11.
Referring to fig. 1 and 2, a box turner 111 is provided at the box turner station 11, and a vibration shakeout machine 112 is provided on a side of the box turner 111 away from the pouring conveyor line 2, the vibration shakeout machine 112 being for receiving molding sand and castings poured when the flask is turned over. The molding sand discharge end of the vibration shakeout machine 112 is connected with a molding sand recycling mechanism 5, and the casting conveying device 113 is arranged at the casting discharge end of the vibration shakeout machine 112. In this embodiment, the casting conveyor 113 is a Lin plate conveyor. When the sand box passes through the box turning station 11, the box turning machine 111 performs box turning operation on the sand box, sand and castings in the sand box are poured into the vibration shakeout machine 112, the vibration shakeout machine 112 breaks sand balls on the sand, the sand and the castings are separated, the separated sand enters the sand recycling mechanism 5 through a sand discharge end to recycle the sand, and the castings enter the casting conveying device 113 through a casting discharge end to recycle the castings, so that automatic material collection and recycling of the castings are realized.
Referring to fig. 2, the sand reclamation mechanism 5 includes a vibrating screen 51, a water cooling fan 52, a cooling bed 53 and a scraper distributor 54 which are sequentially arranged, an input end of the vibrating screen 51 is communicated with a sand discharge end of a vibrating shakeout machine 112, and an output end of the scraper distributor 54 is provided with a sand lifting mechanism 6 for providing required sand to the base sand station 12, the sand filling station 14 and the face sand station 15. The recovered molding sand enters a vibrating screen 51 for screening, and after the screened molding sand is cooled by a water cooling fan 52 and a cooling bed 53, the molding sand is uniformly spread by a scraper distributor 54 and transported to a molding sand lifting mechanism 6, so that the recovery and feeding of the molding sand and the recycling of the molding sand are realized.
Referring to fig. 1 to 3, a compaction table 7 is installed at the bottom sand station 12 and the sand filling station 14, the sand lifting mechanism 6 comprises a lifter 61 and a discharging bin 62, an input end of the lifter 61 is communicated with an output end of the scraper distributor 54, an input end of the discharging bin 62 is communicated with an output end of the lifter 61, an output end of the discharging bin 62 is arranged right above the compaction table 7, and a compacting mechanism 71 for compacting a sand box is arranged on the compaction table 7.
Referring to fig. 4, the pressing mechanism 71 includes a plurality of groups of fixing frames 711 welded to the side walls of the compaction table 7 and connecting rods 712 rotatably connected to the fixing frames 711, a pressing block 713 is fixed to a lower side of one end of the connecting rod 712 close to the compaction table 7, a lifting rod 714 is fixed to a lower side of one end of the connecting rod 712 far from the pressing block 713, and a lifting driving member 715 for driving the lifting rod 714 to lift is mounted on the fixing frames 711. In this embodiment, the lifting driving member 715 is an air cylinder.
When the sand box moves to the bottom sand station 12 and the sand filling station 14, the sand box is positioned on the compaction table 7, and the lifting machine 61 lifts the molding sand output from the scraper distributor 54 into the discharge bin 62, and the discharge bin 62 injects the molding sand into the sand box. When the sand box is filled with the corresponding molding sand, the lifting driving piece 715 is started to drive the lifting rod 714 to lift, the lifting rod 714 is lifted to drive the connecting rod 712 to rotate, the connecting rod 712 rotates to drive the compaction block 713 to move downwards until the compaction block 713 abuts against the top end of the sand box, and the compaction effect is achieved. After the sand box is pressed, the compaction table 7 is used for compacting the molding sand in the sand box. Through the compaction effect of the compaction mechanism 71, the possibility that the sand box is displaced on the compaction table 7 when the compaction table 7 is compacted with molding sand is reduced, the possibility that the sand box falls from the compaction table 7 is further reduced, and the compaction effect of molding sand is ensured.
Referring to fig. 4 and 5, a limiting mechanism 8 for limiting the bottom of the sand box is arranged on the table top of the compaction table 7, the limiting mechanism 8 comprises four limiting angles 81 which are matched with the corner ends of the sand box, the limiting angles 81 are slidably connected onto the compaction table 7, and a driving mechanism 82 for driving the four limiting angles 81 to retract inwards or expand outwards simultaneously is arranged on the compaction table 7. When the sand box to be tapped moves towards the tap platform 7, the four limit angles 81 are in a scattered state, the distance between the two adjacent limit angles 81 is larger, so that the sand box to be tapped passes through the space between the two limit angles 81, when the sand box moves to the center of the tap platform 7, the driving mechanism 82 is started to drive the four limit angles 81 to be simultaneously and inwards closed until the limit angles 81 are abutted with the bottom angle ends of the adjacent corresponding sand boxes, the limit of the sand box is realized, and the possibility of relative displacement between the sand box and the tap platform 7 during vibration is further reduced. After compaction is completed, the driving mechanism 82 is started to drive the four limiting angles 81 to simultaneously disperse outwards and keep away from, so that intermittent movement of the sand box on the molding conveying line 1 is facilitated, and meanwhile, the next sand box to be compacted can be conveniently moved to the compaction table 7 through the limiting angles 81.
Referring to fig. 5 and 6, the driving mechanism 82 includes two symmetrically disposed driving plates 821, the driving plates 821 are disposed along the width direction of the tapping table 7, and the driving plates 821 are slidably disposed inside the tapping table 7 along the length direction of the tapping table 7, and a receiving space 72 for receiving the driving plates 821 is formed in the tapping table 7. The table top of the compaction table 7 is provided with a diagonal guide groove 73 which is arranged corresponding to the limiting angle 81, the diagonal guide groove 73 is communicated with the accommodating space 72, a moving rod 83 is arranged in the diagonal guide groove 73 in a penetrating mode, the bottom end of the moving rod 83 is connected with the corresponding driving plate 821 in a sliding mode along the length direction of the driving plate 821, and the top end of the moving rod 83 is fixed with the center of the bottom of the corresponding limiting angle 81. The length direction of the diagonal guiding groove 73 is the same as the diagonal line direction of the four limiting angles 81, and a driving component 84 for driving the driving plate 821 to approach toward or depart away from each other is arranged in the accommodating space 72. When the driving component 84 drives the driving plate 821 to approach oppositely, the driving plate 821 drives the moving rods 83 on two sides of the driving component 84 to approach oppositely, the moving rods 83 gradually draw close and shrink along the length direction of the diagonal guide groove 73 under the guiding action of the diagonal guide groove 73, when the driving component 84 drives the driving plate 821 to move away from the back, the driving plate 821 drives the moving rods 83 on two sides of the driving component 84 to move away from the back, and the moving rods 83 gradually expand away along the length direction of the diagonal guide groove 73 under the guiding action of the diagonal guide groove 73, so that the aim of driving the four limiting angles 81 to retract inwards or expand away simultaneously is fulfilled.
Referring to fig. 5 to 7, the driving assembly 84 includes a driving motor 841 and a driving bevel gear 842 disposed in the receiving space 72, the driving bevel gear 842 and an output end of the driving motor 841 are coaxially fixed, and the driving bevel gear 842 is simultaneously engaged with two driven bevel gears 843 disposed opposite to each other. The big end of the driven bevel gear 843 is coaxially fixed with a stud 844, the stud 844 rotates to be arranged in the accommodating space 72 along the length direction of the compaction table 7, and one end of the stud 844, which is far away from the driven bevel gear 843, is connected with a threaded sleeve 845 in a threaded manner. The upper end of the threaded sleeve 845 is fixed with a slider 8451, the slider 8451 is slidably connected with the inner wall of the accommodating space 72, and one end of the threaded sleeve 845 away from the stud 844 is centrally connected with one side of the adjacent driving plate 821. When the driving motor 841 rotates, the driving bevel gear 842 is driven to rotate, the driving bevel gear 842 rotates to drive the two driven bevel gears 843 to rotate, the two driven bevel gears 843 rotate to drive the corresponding studs 844 to rotate respectively, and the studs 844 rotate to drive the threaded sleeves 845 to move along the length direction of the vibrating table 7, so that the purpose of driving the driving plate 821 to approach or depart from each other in opposite directions is achieved through one driving source, the purpose of finishing inward contraction and outward expansion and separation through one driving source is achieved, the installation quantity of the driving source is saved, the energy efficiency utilization is improved, the moving synchronous rate of the four limiting angles 81 is guaranteed, and the four limiting angles 81 are clamped in place simultaneously.
Referring to fig. 5 and 7, in order to reduce the possibility of dust sticking to the driving assembly 84 and extend the service life of the driving assembly 84, a dust cover 721 is installed in the accommodating space 72. The driving motor 841, the driving bevel gear 842, the driven bevel gear 843 and the dust cover 721 are all positioned in the dust cover 721, the dust cover 721 is provided with a avoiding hole 7211 for the threaded sleeve 845 to penetrate out, and a part of the threaded sleeve 845 is positioned in the dust cover 721 all the time in the moving process.
Referring to fig. 5, the bottom wall of the accommodating space 72 is obliquely arranged, a certain interval is reserved between the bottom wall of the driving plate 821 and the bottom wall of the accommodating space 72, an ash removing opening 74 communicated with the accommodating space 72 is formed in one side of the compaction table 7, the ash removing opening 74 is formed in the lower oblique end of the bottom wall of the accommodating space 72, and the lower end of the ash removing opening 74 is not higher than the lower oblique end of the bottom wall of the accommodating space 72. In this way, dust generated in the production workshop enters the accommodating space 72 through the diagonal guide groove 73 and slides downwards along the bottom wall of the accommodating space 72, and finally is discharged from the ash cleaning opening 74, so that the possibility of dust accumulation in the accommodating space 72 is reduced, and the driving plate 821 can move smoothly.
The implementation principle of the lost foam casting production line of the embodiment of the application is that when the lost foam casting production line is used for the first time, a sand box is placed on a molding conveying line 1, the sand box is overturned when the sand box reaches a box overturning station 11, residual sand in the sand box is dumped completely, then the bottom sand is filled and compacted when the sand box reaches a bottom sand station 12, manual die filling is carried out when the sand box passes through a loading station 13, a lost foam model is placed above the bottom sand, then sand filling and molding and surface sand adding and arranging are carried out sequentially through a sand filling station 14 and a surface sand station 15, thus molding is completed, the sand box after molding is pushed onto the casting conveying line 2 through a second transfer trolley 41, the casting procedure is completed when the sand box passes through a casting station 21, the sand box after casting is continued to move along the casting conveying line 2 and cooled until the sand box reaches a first conveying line 3, the sand box is carried out by a first transfer trolley 31 and transferred to one side of the molding conveying line 1, the sand box after the sand box is pushed onto the conveying line 1 through a first pushing piece 32, the sand box after the sand box is moved onto the second transfer trolley 41, the sand box after the sand box is overturned, and castings are overturned into the casting station 11.
Through setting up many pouring conveyer belts and a plurality of pouring station 21, can pour a plurality of sand boxes simultaneously at the same moment, be favorable to saving the pouring time to improve the holistic production efficiency of casting production line.
When the sand box passes through the box turning station 11, the box turning machine 111 performs box turning operation on the sand box, sand and castings in the sand box are poured into the vibration shakeout machine 112, the vibration shakeout machine 112 breaks sand balls on the sand, the sand and the castings are separated, the separated sand enters the sand recycling mechanism 5 through a sand discharge end to recycle the sand, and the castings enter the casting conveying device 113 through a casting discharge end to recycle the castings, so that automatic material collection and recycling of the castings are realized.
When the sand box to be tapped moves towards the tap platform 7, the four limiting angles 81 are in a scattered state, the distance between the two adjacent limiting angles 81 is larger, so that the sand box to be tapped passes through the space between the two limiting angles 81, when the sand box moves to the center of the tap platform 7, the driving mechanism 82 is started to drive the four limiting angles 81 to synchronously draw in inwards until the limiting angles 81 are abutted with the bottom angle ends of the adjacent corresponding sand boxes, and the limiting of the sand box is realized. Subsequently, the lift 61 lifts the molding sand output from the blade dispenser 54 into the discharge bin 62, and the discharge bin 62 injects the molding sand into the flask. After the sand boxes have completed the injection of the corresponding molding sand, the pressing mechanism 71 presses the sand boxes, and the compaction table 7 performs compaction of the molding sand in the sand boxes. By the combined action of the limiting mechanism 8 and the pressing mechanism 71, the possibility of the sand box generating relative displacement with the compaction table 7 in vibration is reduced. After compaction is completed, the driving mechanism 82 drives the four limiting angles 81 to simultaneously disperse outwards and keep away, and meanwhile, the lifting driving piece 715 drives the lifting rod 714 to descend, and then the connecting rod 712 drives the compaction block 713 to move upwards, so that the limiting and top pressing action on the bottom of the sand box is relieved, intermittent movement of the sand box on the molding conveying line 1 is facilitated, and meanwhile, the next sand box to be compacted can be conveniently moved onto the compaction table 7 through the limiting angles 81.
The above embodiments are not intended to limit the scope of the application, so that the equivalent changes of the structure, shape and principle of the application are covered by the scope of the application.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513831.4A CN119175362A (en) | 2023-11-14 | 2023-11-14 | Lost foam casting production line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311513831.4A CN119175362A (en) | 2023-11-14 | 2023-11-14 | Lost foam casting production line |
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|---|---|
| CN119175362A true CN119175362A (en) | 2024-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311513831.4A Pending CN119175362A (en) | 2023-11-14 | 2023-11-14 | Lost foam casting production line |
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| CN (1) | CN119175362A (en) |
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| CN119897443A (en) * | 2025-04-02 | 2025-04-29 | 常州钜苓铸造有限公司 | A vibrating table for lost foam casting |
| CN120839007A (en) * | 2025-06-25 | 2025-10-28 | 常州钜苓铸造有限公司 | A production process for lost foam casting |
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Application publication date: 20241224 |