CN115709264A

CN115709264A - Sand mould casting former

Info

Publication number: CN115709264A
Application number: CN202211577125.1A
Authority: CN
Inventors: 曾国兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-02-24

Abstract

A sand mould casting forming device relates to the technical field of sand mould casting; including the support frame, the support frame top is equipped with the open slot that runs through from top to bottom, the support frame is located the below fixed mounting of open slot has the top to be the receipts workbin that the opening set up, install two sets of conveyer belts that set gradually in the open slot, be fixed with two sets of connecting plates that set gradually in the open slot, the terminal surface meets with connecting plate top end face under the conveyer belt top, the support frame is located to rotate between two sets of conveyer belts and is connected with tilting mechanism, tilting mechanism includes the pivot, the pivot is located the open slot outside and has connected gradually the second inserted bar, the one end an organic whole that the second inserted bar is close to the pivot is connected with first limiting plate, the one side rotation that the pivot was kept away from to the one end of second inserted bar is connected with the second limiting plate, install the drag flask between the second inserted bar, the pivot runs through to the outside of support frame and is connected with the gear, the below that the outside of support frame is located the pivot is fixed with two sets of rings, the slip interlude has the rack between the rings.

Description

Sand mould casting former

Technical Field

The invention relates to the technical field of sand mold casting, in particular to sand mold casting forming equipment.

Background

The sand mould casting is to form a cavity for containing metal cooling liquid by matching a sand box, a mould and casting sand, and a metal piece is formed in the cavity after the metal cooling liquid is cooled.

The casting cost of the sand mold is low, the sand mold is the most widely applied casting form, the lower sand box needs to be turned over in the casting process, however, in the casting process of manually processing the sand mold, manual turning is interfered by human factors, the manual turning is easy to collide with the sand box, and the manual turning is not stable enough, so that the problem is solved by the sand mold casting molding equipment capable of stably turning over the sand box.

Disclosure of Invention

The present invention is directed to solving the technical problems described above in the prior art.

The purpose and the effect of the invention are achieved by the following specific technical means:

a sand mold casting molding device comprises a support frame, wherein an open slot which penetrates through the support frame from top to bottom is formed in the upper portion of the support frame, a material receiving box with the top provided with an opening is fixedly installed below the open slot of the support frame, two groups of conveying belts which are sequentially arranged are installed in the open slot, two groups of connecting plates which are sequentially arranged are fixed in the open slot, the lower end face of the top of each conveying belt is connected with the end face of the top of each connecting plate, the support frame is located between the two groups of conveying belts and is rotatably connected with a turnover mechanism, each turnover mechanism comprises a rotating shaft, a second inserted bar, a first limiting plate, a second limiting plate and a gear, the rotating shaft is located on the inner side and the outer side of the open slot and is sequentially connected with a second inserted bar, one end, close to the rotating shaft, of the second inserted bar is integrally connected with the first limiting plate, one side, far away from the rotating shaft, of the second inserted bar is rotatably connected with the second limiting plate, a lower sand box is installed between the second inserted bars, and the rotating shaft penetrates to the outer side of the support frame and is connected with the gear;

two groups of lifting rings are fixed on the outer side of the support frame and located below the rotating shaft, a rack is inserted between the lifting rings in a sliding mode, the rack is meshed with the lower portion of the gear for transmission, a second hydraulic cylinder is installed on the outer side of the support frame and at the same horizontal height as the rack, the telescopic end of the second hydraulic cylinder is fixedly connected with the rack, and the hydraulic cylinder can push the rack to move so that the second inserted bar drives the lower sand box to overturn for 180 degrees.

Preferably, the cleaning brush is arranged at the bottom of the conveying belt in the open slot.

Preferably, the drag flask is provided with a slot corresponding to the second inserted bar, the second inserted bar is inserted into the slot corresponding to the slot, and the drag flask is stably installed between the first limiting plate and the second limiting plate.

Preferably, the molding device further comprises a cope flask, the lower ends of the left side and the right side of the cope flask are connected with first inserted rods, the center of the left side and the center of the right side of the drag flask are provided with fixing blocks, the fixing blocks are provided with insertion holes which penetrate through up and down corresponding to the first inserted rods, and when the cope flask is stacked on the top of the drag flask, the first inserted rods are inserted and arranged corresponding to the insertion holes.

Preferably, a supporting plate is fixed above the rear side of the supporting frame, a horizontal top plate is fixed on the front side of the top of the supporting plate, a through groove which penetrates through the top plate from top to bottom is formed in the center of the top plate, a U-shaped seat which can move horizontally leftwards and rightwards is installed above the through groove, a lifting box which can lift is vertically inserted into an opening of the U-shaped seat, and a feeding box is connected to the lower end of the lifting box in a downward extending mode through the through groove correspondingly.

Preferably, the lift box is connected with the dovetail corresponding to one side of the U-shaped seat seal, one side of the U-shaped seat seal is provided with a dovetail groove which penetrates through the lift box from top to bottom, the dovetail is vertically inserted corresponding to the dovetail groove, lugs are integrally connected to the front side and the rear side of the top of the lift box, first hydraulic cylinders are fixed to the front side and the rear side of the top of the U-shaped seat, and the telescopic ends of the first hydraulic cylinders are connected with the lugs.

Preferably, the lifting box bottom is communicated with the feeding box, the inside of the lifting box is provided with a compaction mechanism, the compaction mechanism comprises a rotary cylinder, a rotary box, a sliding groove opening, a balancing weight, a linkage rod, a push rod, a pressing plate and a fixing plate, the lifting box is internally provided with the pressing plate capable of moving up and down, and the bottom of the feeding box is provided with a feed opening corresponding to the pressing plate.

Preferably, the storage box is fixedly mounted on the left side and the right side of the lifting box at the top of the material box, casting sand is filled in the storage box, the lower end of the storage box is communicated with the feeding box, and the packing auger is mounted in the feeding box.

Preferably, the left side that the delivery box is located the feed opening, the right side all rotates and is connected with down the flitch, and the rotary cylinder of flitch rotation under the drive is installed in the outside of delivery box, and rotary cylinder can drive down the flitch rotation to arbitrary angle.

Preferably, the lower flitch is close to feed opening center one end and is equipped with the flexible groove that the inside extension of multiunit flitch down, flexible inslot portion is equipped with the helicla flute, the internally mounted in flexible groove has the rabbling mechanism that can stretch out and draw back, the rabbling mechanism includes the (mixing) shaft, the puddler, the preforming, the connecting block, guide block and electric putter, electric putter corresponds flexible groove open-ended flexible end and rotates and is connected with the connecting block, connecting block outside body coupling has the guide block, the guide block slides and sets up in the helicla flute, the connecting block outside is connected with the (mixing) shaft, the outside of (mixing) shaft is along the axial, circumference all is connected with the puddler, the (mixing) shaft outside end-to-end connection has the preforming.

Has the beneficial effects that:

1. this kind of sand mould casting former is provided with tilting mechanism, starts the pneumatic cylinder and can promote the rack and remove, and then drives gear clockwise rotation, and then drives the pivot rotation, and then drives second inserted bar and the 180 degrees of drag flask upset, and this kind of upset mode is used force evenly, and can not appear rocking, and stability is high.

2. This kind of sand mould casting former is provided with down the flitch, has telescopic rabbling mechanism in the flitch down, and rabbling mechanism can play crushing casting sand and prevent the caking, can also cross the sand to in the sand box and carry out the compaction.

3. This kind of sand mould casting former is provided with down the flitch, there is telescopic compacting mechanism in the flitch down, it is rotatory to drive the swivel box through starting revolving cylinder, and then make the balancing weight remove in the swivel box, when the swivel box rotation is vertical state, the balancing weight slides to the inside lower extreme of swivel box, and then make the gangbar down move, and then promote the push rod down move, and then promote the clamp plate and move toward the feed opening outside, in the sand to drag flask or cope flask inside presses real-time, the removal of balancing weight makes the clamp plate can compress tightly the grit.

Description of the drawings:

FIG. 1 is a schematic view of a sand mold casting molding apparatus according to the present invention.

Fig. 2 is a schematic cross-sectional view of the elevator car of the present invention.

FIG. 3 is a schematic view of a compaction mechanism according to the present invention.

FIG. 4 is a schematic view of the cope and drag flasks of the present invention.

FIG. 5 is a schematic view of the turnover mechanism of the present invention.

Fig. 6 is a schematic diagram of the conveyor belt structure of the present invention.

FIG. 7 is a schematic sectional view of the material receiving box of the present invention.

Fig. 8 is a schematic diagram of a blanking plate structure according to the present invention.

Fig. 9 is a schematic cross-sectional view of a blanking plate of the present invention.

In FIGS. 1-9: the device comprises a support frame 1, an open slot 101, a conveying belt 2, a support plate 3, a top plate 4, a through slot 401, a screw rod 5, a sliding rod 6, a U-shaped seat 7, a lifting box 8, a first hydraulic cylinder 9, a dovetail 10, a feeding box 11, a feed opening 111, a storage box 112, an auger 113, a cleaning brush 12, a receiving box 13, a drag flask 14, a fixed block 141, an insertion slot 142, a cope flask 15, a first insertion rod 151, a turning shaft 16, a second insertion rod 161, a first limiting plate 162, a second limiting plate 163, a gear 164, a rack 17, a second hydraulic cylinder 18, a feed plate 19, a telescopic slot 191, a spiral slot 192, a rotating cylinder 20, a rotating box 21, a sliding slot opening 211, a balancing weight 212, a linkage rod 22, a push rod 23, a pressing plate 24, a fixing plate 25, a connecting plate 26, a stirring mechanism 27, a 271, a stirring rod 272, a pressing plate 273, a connecting block 274, a guide block 275 and an electric push rod 276.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-9, a sand mold casting molding device comprises a support frame 1, wherein vertical support legs are arranged on the periphery of the bottom of the support frame 1, an open slot 101 which penetrates through the support frame 1 from top to bottom is formed in the upper portion of the support frame 1, a material receiving box 13 with an opening at the top is fixedly arranged below the open slot 101 of the support frame 1, the material receiving box 13 is a screw conveyor, two groups of sequentially arranged conveying belts 2 are arranged in the open slot 101, two groups of sequentially arranged connecting plates 26 are fixed in the open slot 101, the lower end face of the top of the conveying belt 2 is connected with the top end face of the connecting plate 26, a cleaning brush 12 is arranged at the bottom of the conveying belt 2 in the open slot 101, bristles of the cleaning brush 12 are connected with the bottom end face of the conveying belt 2, and a motor for driving the conveying belt 2 to run is arranged on the outer side of the support frame 1;

a turnover mechanism is rotatably connected between the two groups of conveyor belts 2 on the support frame 1, and comprises a rotating shaft 16, a second inserted bar 161, a first limiting plate 162, a second limiting plate 163 and a gear 164, wherein the rotating shaft 16 is positioned inside and outside the open slot 101 and is sequentially connected with the second inserted bar 161, one end of the second inserted bar 161, which is close to the rotating shaft 16, is integrally connected with the first limiting plate 162, and one side of one end of the second inserted bar 161, which is far away from the rotating shaft 16, is rotatably connected with the second limiting plate 163;

the drag flask 14 is arranged between the second insert rods 161, the insert grooves 142 corresponding to the second insert rods 161 are formed in the drag flask 14, after the second insert rods 161 are inserted corresponding to the insert grooves 142, the second limiting plate 163 is rotated, so that the second limiting plate 163 is attached to the outer wall of the drag flask 14, the drag flask 14 is stably arranged between the first limiting plate 162 and the second limiting plate 163, when the drag flask 14 needs to be taken out, the second limiting plate 163 needs to be rotated into the end face of the second insert rod 161, then the drag flask 14 is moved out in a translation mode, and the gear 164 is connected to the outer side, penetrating through the rotating shaft 16, of the support frame 1;

two groups of lifting rings are fixed on the outer side of the support frame 1 below the rotating shaft 16, a rack 17 is inserted between the lifting rings in a sliding and penetrating manner, the rack 17 is in meshing transmission with the lower part of the gear 164, a second hydraulic cylinder 19 is installed on the outer side of the support frame 1 at the same horizontal height with the rack 17, and the telescopic end of the second hydraulic cylinder 19 is fixedly connected with the rack 17; the starting hydraulic cylinder 18 can push the rack 17 to move, so as to drive the gear 164 to rotate clockwise, further drive the rotating shaft 16 to rotate, further drive the second inserted link 161 to overturn 180 degrees with the drag flask 14, the overturning mode is even in force application, no shaking occurs, and the stability is high.

It should be noted that the conveyer belt 2 can rotate, and can transmit the sand falling on the upper end of the conveyer belt 2 to the falling receiving box 13, so that the conveyer belt is convenient to clean, and the brush 12 can clean the surface of the conveyer belt 2 to prevent the sand from adhering to the surface of the conveyer belt 2.

As shown in fig. 1 and 4, the cope flask 15 includes a cope flask 15, first insert rods 151 are connected to lower ends of left and right sides of the cope flask 15, a fixing block 141 is installed at centers of left and right sides of the drag flask 14, insertion holes penetrating up and down are formed in the fixing block 141 corresponding to the first insert rods 151, and when the cope flask 15 is stacked on a top of the drag flask 14, the first insert rods 151 are inserted into the insertion holes, and grip grooves are formed in left and right sides of the cope flask 15 so as to facilitate transportation of the cope flask 15.

As shown in fig. 1, a supporting plate 3 is fixed above the rear side of a supporting frame 1, a horizontal top plate 4 is fixed on the front side of the top of the supporting plate 3, a through groove 401 which penetrates up and down is arranged in the center of the top plate 4, a screw rod 5 is rotatably connected between the left end and the right end of the front side of the through groove 401 through a shaft seat, a slide rod 6 is connected between the left end and the right end of the rear side of the through groove 401 at the top of the top plate 4 through a fixing seat, a U-shaped seat 7,U is slidably arranged above the top plate 4, the front side of the U-shaped seat 7 is screwed on the outer side of the screw rod 5, the rear side of the U-shaped seat 7 is sleeved on the outer side of the slide rod 6, a stepping motor which drives the screw rod 5 to rotate forward and backward is installed on the upper end of the top plate 4, the stepping motor can drive the screw rod 5 to rotate after being started, and further drive the U-shaped seat 7 to move, and it can be clear to that the positions of the screw rod 5 and the slide rod 6 can be interchanged, and the movement of the U-shaped seat 7 is not affected.

As shown in fig. 1 and 2, an elevating box 8 is vertically inserted into an opening of the U-shaped seat 7, a feeding box 11 is connected to the lower end of the elevating box 8 corresponding to the through groove 401 and extending downwards, a dovetail 10 is connected to one side of the elevating box 8 corresponding to the closed U-shaped seat 7, a dovetail groove which penetrates up and down is arranged on one side of the closed U-shaped seat 7, the dovetail 10 is vertically inserted corresponding to the dovetail groove, and the elevating box 8 is more stable to move up and down due to the arrangement of the dovetail 10.

The front side and the rear side of the top of the lifting box 8 are integrally connected with ear plates, the front side and the rear side of the top of the U-shaped seat 7 are respectively fixed with a first hydraulic cylinder 9, the telescopic end of the first hydraulic cylinder 9 is connected with the ear plates, and the lifting box 8 can be driven to move up and down through the telescopic of the first hydraulic cylinder 9.

The bottom of the lifting box 8 is communicated with the feeding box 11, a compaction mechanism is installed inside the lifting box 8, the compaction mechanism comprises a rotary cylinder 20, a rotary box 21, a sliding groove opening 211, a balancing weight 212, a linkage rod 22, a push rod 23, a pressing plate 24 and a fixing plate 25, one side, corresponding to the opening of the U-shaped seat 7, of the inside of the lifting box 8 is rotatably connected with the rotary box 21, the rotary cylinder 20 driving the rotary box 21 to rotate is installed on the outer side of the lifting box 8, the rotary box 21 is a rectangular box body, one side, close to the center of the lifting box 8, of the rotary box 21 is provided with the through sliding groove opening 211, the balancing weight 212 is slidably arranged in the rotary box 21, a fixing shaft is fixed at the center of the outer side of the balancing weight 212, the fixing shaft extends to the outer side of the rotary box 21 and corresponds to the sliding groove opening 211, the upper end of the linkage rod 22 is rotatably connected to the outer side of the fixing shaft, the lower end of the linkage rod 22 is hinged to the push rod 23 through a hinge, the fixing plate 25 is fixed to the lower end of the inside of the lifting box 8, the push rod 23 penetrates through the fixing plate 25, the fixing plate 24, the pressing plate 24 is connected to the pressing plate 24, and the pressing plate 24 is provided with a discharging opening 111; when using, can start revolving cylinder 20 and drive rotatory case 21 rotatoryly, and then make balancing weight 212 remove in rotatory case 21, when rotatory case 21 is vertical state, balancing weight 212 slides to the inside lower extreme of rotatory case 21, and then make gangbar 22 down move, and then promote push rod 23 down move, and then promote clamp plate 24 and move toward feed opening 111 outside, in the time of pressing the inside grit of drag flask 14 or cope flask 15, the removal of balancing weight 212 makes clamp plate 24 can compress tightly the grit.

The storage box 112 is fixedly installed on the left side and the right side of the lifting box 8 at the top of the feeding box 11, casting sand is filled in the storage box 112, the lower end of the storage box 112 is communicated with the feeding box 11, the packing auger 113 is installed inside the feeding box 11, the motor for driving the packing auger 113 to rotate is installed on the outer side of the feeding box 11, after the motor is started, the packing auger 113 rotates to output the casting sand of the storage box 112, and then the discharging is carried out through the discharging opening 111, when the cope flask 15 and the drag flask 14 are filled, only the discharging opening 111 needs to be aligned to the top openings of the cope flask 15 and the drag flask 14.

As shown in fig. 2, 8 and 9, the feeding box 11 is connected to the blanking plate 19 on both the left and right sides of the blanking opening 111, the outside of the feeding box 11 is provided with a rotary cylinder for driving the blanking plate 19 to rotate, the rotary cylinder can drive the blanking plate 19 to rotate to any angle, and the blanking opening 111 can be closed after the blanking plate 19 rotates to a horizontal position.

A plurality of groups of telescopic grooves 191 extending towards the interior of the blanking plate 19 are formed in one end of the blanking plate 19 close to the center of the blanking port 111, spiral grooves 192 are formed in the telescopic grooves 191, and a telescopic stirring mechanism 27 is installed in the telescopic grooves 191;

the stirring mechanism 27 comprises a stirring shaft 271, a stirring rod 272, a pressing piece 273, a connecting block 274, a guide block 275 and an electric push rod 276;

an electric push rod 276 is installed at the bottom in the telescopic groove 191, the electric push rod 276 is rotatably connected with a connecting block 274 corresponding to the telescopic end of the opening of the telescopic groove 191, a guide block 275 is integrally connected with the outer side of the connecting block 274, the guide block 275 is slidably arranged in the spiral groove 192, a stirring shaft 271 is connected with the outer side of the connecting block 274, stirring rods 272 are axially and circumferentially connected with the outer side of the stirring shaft 271, and a pressing piece 273 is connected with the tail end of the outer side of the stirring shaft 271;

when sand is fed, the blanking plate 19 can be driven by the rotary cylinder to rotate to open the feed opening 111, an inverted eight shape is formed, in the process of feeding the sand, the electric push rod 276 can be started, the connecting block 274 is pushed in a reciprocating mode under the action of the spiral groove 192, the connecting block 274 is made to rotate, the stirring shaft 271 is driven to rotate, the stirring rod 272 is driven to rotate to stir the sand, the sand is prevented from caking when falling into the cope box 15 and the drag box 14, the sand enters the cope box 15 and the drag box 14 after being one third of the height, the blanking plate 19 can be driven by the rotary cylinder to form a vertical state or a state similar to the vertical state, the pressing sheet 273 is driven by the stirring shaft 271 in the reciprocating moving process to squeeze the sand in the cope box 15 and the drag box 14, the effect of pounding is achieved, and the sand in the cope box 15 and the drag box 14 is more easily molded.

It should be noted that, after the electric push rod 276 contracts, the stirring shaft 271 contracts into the telescopic groove 191, and the opening of the telescopic groove 191 is closed by the pressing sheet 273, after the lower plate 19 is in a vertical state, the lifting box 8 is driven by the first hydraulic cylinder 9 to move downwards, so that the top end surface of the cope flask 15 or the drag flask 14 can be attached to the lower part of the lower plate 19, the U-shaped seat 7 is driven by the lead screw 5 to move, the lifting box 8 is driven to move, and the lower plate 19 is driven to level the top end surface of the cope flask 15 or the drag flask 14.

The working principle is as follows:

when the device is used, the drag flask 14 is placed above the conveyor belt 2, the second insert rod 161 is inserted corresponding to the slot 142, then the second limit plate 163 is rotated to limit the outer side of the drag flask 14, the drag flask 14 is stably arranged between the first limit plate 162 and the second limit plate 163, a mold is placed in the drag flask 14, the stepping motor is started to drive the screw rod 5 to rotate, the U-shaped seat 7 is driven to move, the feed opening 111 at the bottom of the feeding box 11 is aligned with the opening at the top of the drag flask 14, parting sand is uniformly added, then the feed plate 19 is driven by the rotary cylinder to rotate and open the feed opening 111, the auger 113 is driven to rotate by the starting motor to drive the auger 113 to fill casting sand into the drag flask 14, the electric push rod 276 is started to reciprocate to push the connecting block 274 to reciprocate under the action of the spiral groove 192, the connecting block 274 is driven to rotate, and the stirring shaft 271 is driven to rotate, then the stirring rod 272 is driven to rotate to stir the sand, the sand is prevented from caking when falling into the cope flask 15 and the drag flask 14, after the sand enters the cope flask 15 and the drag flask 14 by one third of the height, the rotating cylinder can drive the drag plate 19 to be in a vertical state, or a state similar to the vertical state, the stirring shaft 271 drives the pressing sheet 273 to extrude the sand in the cope flask 15 and the drag flask 14 in the reciprocating movement process, so as to achieve the function of pounding tightly, the sand in the cope flask 15 and the drag flask 14 is compacted more easily, after the drag flask 14 is pounded fully with the sand, the lower plate 19 is driven to rotate by the rotating cylinder to be in a vertical state, the first hydraulic cylinder 9 drives the lifting box 8 to move downwards, the lower end of the lower pressing plate 19 is connected with the top end face of the drag flask 14, the screw rod 5 drives the U-shaped seat 7 to move, the lower material plate 19 levels the lower sand box 14, the hydraulic cylinder 18 is started to push the rack 17 to move, the gear 164 is driven to rotate clockwise, the rotating shaft 16 is driven to rotate, the second insert rod 161 and the lower sand box 14 are driven to turn over for 180 degrees, the upper sand box 15 is placed on the top of the lower sand box 14 to be stacked, the operations of sand adding, compacting and leveling are repeated, the upper sand box 15 is taken down, the mold is taken out, and then the metal liquid is poured for cooling and forming.

Claims

1. A sand mould casting forming device comprises a supporting frame (1) and is characterized in that, an open slot (101) which penetrates through the upper part and the lower part is arranged above the supporting frame (1), a material receiving box (13) with the top part being provided with an opening is fixedly arranged below the open slot (101) of the supporting frame (1), two groups of conveyer belts (2) which are arranged in sequence are arranged in the open slot (101), two groups of connecting plates (26) which are arranged in sequence are fixed in the open slot (101), the lower end surface of the top of the conveyer belt (2) is connected with the end surface of the top of the connecting plate (26), the supporting frame (1) is positioned between the two groups of conveying belts (2) and is rotationally connected with a turnover mechanism, the turnover mechanism comprises a rotating shaft (16), a second inserted bar (161), a first limit plate (162), a second limit plate (163) and a gear (164), the rotating shaft (16) is positioned inside and outside the open slot (101) and is sequentially connected with a second inserted bar (161), one end of the second inserted bar (161) close to the rotating shaft (16) is integrally connected with a first limiting plate (162), one side of one end of the second inserted rod (161) far away from the rotating shaft (16) is rotatably connected with a second limit plate (163), a drag flask (14) is arranged between the second insert rods (161), and a gear (164) is connected to the outer side of the rotating shaft (16) penetrating through the support frame (1);

the outside of support frame (1) is located the below of pivot (16) and is fixed with two sets of rings, it has rack (17) to slide to alternate between the rings, rack (17) and gear (164) below meshing transmission, second hydraulic cylinder (19) are installed to the same level in support frame (1) outside and rack (17), the flexible end and rack (17) fixed connection of second hydraulic cylinder (19), pneumatic cylinder (18) can promote rack (17) and remove, make second inserted bar (161) drive drag flask (14) 180 degrees of overturning.

2. A sand mould foundry moulding apparatus as claimed in claim 1, characterised in that cleaning brushes (12) are mounted in the open trough (101) at the bottom of the conveyor belt (2).

3. The sand mold casting molding apparatus as recited in claim 1, wherein the drag flask (14) is provided with an insertion groove (142) corresponding to the second insert rod (161), the second insert rod (161) being inserted corresponding to the insertion groove (142), the drag flask (14) being stably mounted between the first stopper plate (162) and the second stopper plate (163).

4. The sand mold casting molding device according to claim 1, further comprising a cope flask (15), wherein the lower ends of the left and right sides of the cope flask (15) are connected with first insertion rods (151), the center of the left and right sides of the drag flask (14) is provided with a fixing block (141), the fixing block (141) is provided with insertion holes which penetrate up and down corresponding to the first insertion rods (151), and when the cope flask (15) is stacked on the top of the drag flask (14), the first insertion rods (151) are inserted into the insertion holes.

5. The sand mold casting molding equipment according to claim 1, characterized in that a supporting plate (3) is fixed above the rear side of the supporting frame (1), a horizontal top plate (4) is fixed on the front side of the top of the supporting plate (3), a through groove (401) which penetrates through the top and the bottom is arranged in the center of the top plate (4), a U-shaped seat (7) which can move horizontally leftwards and rightwards is installed above the through groove (401), a lifting box (8) which can be lifted is vertically inserted into an opening of the U-shaped seat (7), and a feeding box (11) is connected to the lower end of the lifting box (8) in a downward extending mode corresponding to the through groove (401).

6. A sand casting molding device according to claim 5, characterized in that one side of the lifting box (8) corresponding to the closed side of the U-shaped seat (7) is connected with a dovetail (10), the closed side of the U-shaped seat (7) is provided with a dovetail groove which penetrates through the closed side up and down, the dovetail (10) is vertically inserted corresponding to the dovetail groove, the front side and the rear side of the top of the lifting box (8) are integrally connected with lug plates, the front side and the rear side of the top of the U-shaped seat (7) are respectively fixed with a first hydraulic cylinder (9), and the telescopic end of the first hydraulic cylinder (9) is connected with the lug plates.

7. The sand mold casting molding equipment according to claim 5, characterized in that the bottom of the lifting box (8) is communicated with a feeding box (11), a compaction mechanism is installed inside the lifting box (8), the compaction mechanism comprises a rotary cylinder (20), a rotary box (21), a sliding groove opening (211), a balancing weight (212), a linkage rod (22), a push rod (23), a pressing plate (24) and a fixing plate (25), the pressing plate (24) capable of moving up and down is arranged in the lifting box (8), and a discharging opening (111) is formed in the bottom of the feeding box (11) corresponding to the pressing plate (24).

8. The sand casting molding device according to claim 5, wherein the storage boxes (112) are fixedly arranged on the top of the material box (11) and positioned on the left side and the right side of the lifting box (8), casting sand is filled in the storage boxes (112), the lower ends of the storage boxes (112) are communicated with the feeding box (11), and the packing auger (113) is arranged in the feeding box (11).

9. The sand mold casting molding equipment as claimed in claim 5, characterized in that the feeding box (11) is rotatably connected with a blanking plate (19) at the left side and the right side of the blanking port (111), a rotary cylinder for driving the blanking plate (19) to rotate is installed at the outer side of the feeding box (11), and the rotary cylinder can drive the blanking plate (19) to rotate to any angle.

10. The sand casting molding equipment according to claim 1, wherein one end of the blanking plate (19) close to the center of the blanking port (111) is provided with a plurality of groups of telescopic grooves (191) extending towards the inside of the blanking plate (19), spiral grooves (192) are formed in the telescopic grooves (191), a telescopic stirring mechanism (27) is installed in each telescopic groove (191), each stirring mechanism (27) comprises a stirring shaft (271), a stirring rod (272), a pressing piece (273), a connecting block (274), a guide block (275) and an electric push rod (276), the electric push rod (276) is rotatably connected with the connecting block (274) corresponding to the telescopic end with the opening of the telescopic groove (191), the guide block (275) is integrally connected to the outer side of the connecting block (274), the guide block (275) is slidably arranged in the spiral grooves (192), the stirring rods (272) are connected to the outer side of the stirring shaft (271) in the axial direction and the circumferential direction, and the pressing piece (273) is connected to the outer end of the stirring shaft (271).