CN114632915A - Sand adding device for casting - Google Patents

Abstract

The invention discloses a casting sand adding device, which relates to the field of sand casting and comprises a sand hopper, wherein the sand hopper is connected with a sand adding head through a sand adding pipe, the bottom of the sand adding head is rectangular, the bottom end of the sand adding head is fixedly connected with a shaft lever, a plurality of sealing columns which are sequentially attached are rotatably connected on the shaft lever, each sealing column comprises a semi-cylinder, one side of each semi-cylinder is attached to the inner side of the sand adding head, the side surface of each semi-cylinder is fixedly connected with an elliptic cylinder, and the bottom side of a sand hopper is connected with a mold seat, a shaft lever is fixed in the sanding head, a plurality of sealing columns which are linearly arrayed along the axial direction of the shaft lever are rotatably connected on the shaft lever, the sealing columns block the bottom of the sanding head, make the part add the sand head open through the mode of rotating sealed post and realize the part and add sand, avoid casting to run off with sand and lead to the loss, sealed post adopts the mode that semicylinder and elliptic cylinder are connected, makes sealed post rotate back one side and seals.

Description

Casting sand adding device

Technical Field

The invention relates to the field of sand casting, in particular to a casting sand adding device.

Background

The sand adding casting is to arrange a mould in a sand box, compact the sand box after adding sand into the sand box to fix the sand mould, take out the mould in the sand box, form a cavity in the shape of the mould in the middle of the sand mould, form a casting in the shape of the mould after cooling by pouring liquid metal into the cavity, adopt manual sand adding before mechanical operation is popularized, and the sand adding in the casting of the prior art is realized by adopting a manual operation machine.

The application document with the patent number of CN108941454B discloses a sand adding device free of arrangement in lost foam casting, which comprises a sand adding groove, wherein the sand adding groove is of a top opening structure, the end face of the sand adding groove is connected with an electric slide rail through a slide block, the end face of the electric slide rail is fixed on a connecting plate, the two ends of the connecting plate are respectively fixed on a left connecting shaft and a right connecting shaft, the bottom of the sand adding groove is provided with a sand outlet, the sand outlet is connected with a sand outlet plate in a sliding manner, a buffer groove is arranged below the sand outlet, the buffer groove is fixedly connected with the bottom of the sand adding groove through a connecting frame, the bottom of the buffer groove is provided with a second sand outlet, the second sand outlet is rotatably connected with a second sand outlet plate, and a volute spring is arranged at the joint of the second sand outlet plate and the second sand outlet plate; through setting up with sand groove and electronic slide rail, can locate to add the sand operation to the sand box in different positions, avoid piling up of molding sand, effectively solved the current problem that needs constantly vibrate the sand box in adding the sand operation.

But because the sand is added to the not sand box of equidimension in the current sand adding device is difficult to control, if adopt above-mentioned prior art to add sand to less sand box and easily lead to remaining sand to leak, cause the inconvenient, extravagant problem of clearance.

Disclosure of Invention

The invention aims to provide a casting sand adding device to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a casting adds sand device, includes the sand fill, the sand fill is connected through adding the sand pipe with adding the sand head, add the sand head bottom and be the rectangle, add the first bottom fixed connection axostylus axostyle of sand, rotate on the axostylus axostyle and be connected with a plurality of sealed columns of laminating in proper order, sealed column includes one side and the semi-cylinder that adds the inboard laminating of sand head, semi-cylinder side fixed connection elliptical column, adds the first bottom side of sand and is equipped with the mould seat.

Preferably, the bottom side of the sealing column is fixedly connected with a shifting plate, the inside of the sealing column is connected with a shaft lever through a torsion spring, the top of the sealing column is fixedly connected with a pressing rod, the pressing rod is abutted to a baffle plate which is connected with the side of the sanding head in a vertical sliding mode, and the number of the baffle plates corresponds to the number of the sealing columns.

Preferably, the baffle includes through tension spring with add the upper segment board that the sand head is connected, the upper segment board rotates with lower section board to be connected, the upper segment board side is connected through the arc pole that arc section of thick bamboo and lower section board are fixed, through the trachea intercommunication between the adjacent arc section of thick bamboo, trachea and the cylinder intercommunication of adding the sand head side.

Preferably, the upper half section of the baffle is connected with the sand adding head through a tension spring.

Preferably, the mould seat is including connecting a plurality of bedplate on the conveyer belt, and is a plurality of the bedplate distributes along conveyer belt length direction, and the conveyer belt inboard is laminated with the transfer roller of rotating the connection on the conveyer frame.

Preferably, the seat plate is connected with a lateral supporting mechanism, the lateral supporting mechanism comprises a plurality of supporting sleeves connected to the seat plate, the supporting sleeves are connected with supporting slide bars in a sliding mode, the end portions of the supporting slide bars are fixedly connected with the first supporting cross bars, and the supporting sleeves are communicated with the supporting air cylinders.

Preferably, the support sleeves are arranged in two groups, each group of support sleeves is provided with two support sleeves, the two support sleeves in the same group are symmetrically connected to two sides of the seat plate, and the support sleeves are rotatably connected with the seat plate through pins.

Preferably, the supporting slide bar is hollow inside, the side face of the supporting slide bar is fixedly connected with a slide cylinder, the slide cylinder is connected with the slide bar in a sliding mode, the bottom end of the slide bar is fixedly connected with the second supporting cross bar, the inner end of the slide cylinder is connected with an elastic rope, and the other end of the elastic rope is fixed with the slide bar.

Preferably, the position of the sliding rod conveying frame below the sand adding head is rotatably connected with a supporting wheel, and the supporting wheel is tangent to the bottom surface of the seat plate.

Preferably, the bottom side of the conveying frame is fixedly connected with a lifting leg, the lifting leg comprises a lifting rod fixedly connected with the conveying frame, and the lifting rod slides in the lifting pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. the shaft rod is fixed in the sand adding head, a plurality of sealing columns which are linearly arrayed along the axis direction of the shaft rod are rotatably connected on the shaft rod, the bottom of the sand adding head is plugged by the sealing columns, the local sand adding head is opened by rotating the sealing columns to realize local sand adding, loss caused by casting sand loss is avoided, and one side of the sealing columns is sealed after the sealing columns rotate by adopting a mode of connecting semi-cylinders and elliptic cylinders;

2. the bottom sides of the sealing columns are connected with the shifting plate, the shifting plate is pushed by moving the sand box so as to enable part of the sealing columns to rotate, the sealing columns in a specific width range on a sand box travelling line can be rotated according to the width of the sand box, and therefore the positions above the sand box are communicated with the sand adding head, and molding sand falls into the sand box;

3. the upper part of the sealing column is connected with a pressure lever, the pressure lever is abutted against a baffle plate on the side surface of the sand adding head, the baffle plate slides into a sand adding box and is blocked on the front side of falling molding sand, the molding sand box positioned on the rear side of the baffle plate is fully filled with the molding sand, the baffle plate is arranged in a mode that an upper half section is rotationally connected with a lower half section, the upper half section and the lower half section are connected with an arc-shaped rod through an arc-shaped cylinder, the arc-shaped cylinder is connected with an air cylinder, the lower half section of the baffle plate is shaken relative to the upper half section, and the molding sand is filled under the vibration action;

4. the seat plate is connected to the conveyor belt, and the sand box is placed on the conveyor belt and moves along with the conveyor belt, so that continuous sand adding is realized, and the sand adding efficiency in industrial production is improved;

5. the upper side surface of the seat plate is connected with a supporting mechanism, the sand box on the seat plate is fixed through the supporting mechanism, so that the sand box is kept relatively fixed with the seat plate in the moving process along with the conveyor belt, and each side of the sand box is kept stable by the supporting mechanism in a four-side supporting mode;

6. the lifting support legs are connected to the bottom side of the conveying frame, and the height of the conveying frame is controlled to enable the tops of the sand boxes with different heights to be attached to the bottom side of the sand adding head.

Drawings

FIG. 1 is a schematic structural view of the present invention;

figure 2 is a cross-sectional view of the tank according to the invention;

FIG. 3 is a partial cross-sectional view of a sanding head of the present invention;

FIG. 4 is a cross-sectional view of a guard chamber, sealing post of the present invention;

FIG. 5 is a schematic structural view of a sealing post according to the present invention;

FIG. 6 is a schematic structural diagram of a transfer rack according to the present invention;

FIG. 7 is a connection view of the seat plate and the support mechanism of the present invention;

fig. 8 is a structural sectional view of the support mechanism of the present invention.

In the figure: 1. a material box; 11. a shaft cylinder; 12. a spiral delivery shaft; 13. adding a sand pipe; 2. adding a sand head; 21. a protective cavity; 211. a tension spring; 22. sealing the column; 221. dialing a plate; 222. an empty groove; 223. a torsion spring; 224. a pressure lever; 23. a baffle plate; 231. a lower plate; 232. an arcuate bar; 233. an arc-shaped cylinder; 234. an upper section plate; 24. a cylinder; 25. a hose; 3. a conveyor belt; 4. a transfer frame; 41. a lifting pipe; 42. a lifting rod; 43. a wheel carrier; 44. a support wheel; 5. a seat plate; 51. a support mechanism; 511. a support cylinder; 512. a support bar; 513. a first cross bar; 514. a second cross bar; 515. a slide cylinder; 516. a slide bar; 517. an elastic cord; 6. a conveying roller; 7. a transmission shaft.

Detailed Description

Example 1

As shown in figures 1-5, a casting sand adding device comprises a material box 1, a shaft barrel 11 is fixedly connected in the material box 1, a spiral conveying shaft 12 is rotatably connected in the shaft barrel 11, one end of the shaft barrel 11 is communicated with the material box 1, the spiral conveying shaft 12 extends to the open end of the bottom of the shaft barrel 11, the spiral conveying shaft 12 is arranged to be inclined with a horizontal plane so as to facilitate sand conveying in consideration of the use of the spiral conveying shaft 12 for sand conveying, the top end of the shaft barrel 11 is connected with a sand adding head 2 outside the material box 1 through a sand adding pipe 13, a mold seat is arranged below the sand adding head 2 for placing a sand box and a mold, a shaft rod is fixedly connected in the sand adding head 2, a sealing column 22 is rotatably connected on the shaft rod, the sealing column 22 comprises a semi-cylinder attached to one side of the sand adding head 2, the side surface of the semi-cylinder is fixedly connected with a semi-elliptic cylinder with the same diameter as the semi-cylinder, and the sealing column 22 is linearly arrayed along the axial direction of the shaft rod, the adjacent sealing columns 22 are attached, the shifting plate 221 is fixedly connected to the bottom sides of the sealing columns 22, the hollow groove 222 is formed in the middle of each sealing column 22, and the torsion spring 223 is arranged in each hollow groove 222, wherein the inner end of each torsion spring is fixedly connected with the corresponding shaft rod, and the outer end of each torsion spring is fixedly connected with the inner wall of each hollow groove 222.

When the sand is added, the sand box with the mold placed inside is fixed on the mold seat, the sand box moves along with the mold seat to enable the sand box to slide through the lower part of the sand adding head 2, the front end of the sand box is abutted against a shifting plate 221, the shifting plate 221 is enabled to drive the sealing column 22 to rotate relative to the shaft rod, a semi-elliptic column originally attached to the sand adding head 2 in the sealing column 22 rotates by taking the axis of the sealing column 22 as the center, the elliptic column is enabled to be separated from the inner side wall of the sand adding head 2 attached to the elliptic column, the bottom of the sand adding head 2 is enabled to be opened, the opened width is the width of the sand box, meanwhile, a spiral conveying shaft 12 in a shaft cylinder 11 in the sand box 1 is driven by an external motor to enable the molding sand in the sand box to enter the sand adding head 2 through the shaft cylinder 11 and the sand adding pipe 13, the molding sand falls into the sand box from the opened position at the bottom of the sand adding head 2, the sand adding is realized, the sand adding moves relative to the sand adding head 2, the gradual sand adding from one side to the other side in the sand adding is realized, after the sand adding is finished, after the sand box is separated from the shifting plate 221, the sealing column 22 is recovered under the elastic force of the torsion spring 223, so that the end part of the semi-elliptic column of the sealing column 22 is attached to the sand adding head 2 again, the bottom of the sand adding head 2 is closed, the sand adding of a single sand box is completed, and the sand box after sand adding is moved out of the lower part of the sand adding head 2 along with the mold seat.

Example 2

As shown in figures 1-5, a casting sand adding device comprises a material box 1, a shaft barrel 11 is fixedly connected in the material box 1, a spiral conveying shaft 12 is rotatably connected in the shaft barrel 11, one end of the shaft barrel 11 is communicated with the material box 1, the spiral conveying shaft 12 extends to the open end of the bottom of the shaft barrel 11, the spiral conveying shaft 12 is arranged to be inclined with a horizontal plane so as to facilitate sand conveying in consideration of the use of the spiral conveying shaft 12 for sand conveying, the top end of the shaft barrel 11 is connected with a sand adding head 2 outside the material box 1 through a sand adding pipe 13, a mold seat is arranged below the sand adding head 2 and used for placing a sand box and a mold, a shaft rod is fixedly connected in the sand adding head 2, a sealing column 22 is rotatably connected on the shaft rod, the sealing column 22 comprises a semi-cylinder attached to one side of the sand adding head 2, the side surface of the semi-elliptic cylinder is fixedly connected with a semi-elliptic cylinder with the same diameter as the semi-cylinder, and the sealing column 22 is linearly arrayed along the axial direction of the shaft rod, the adjacent sealing columns 22 are attached to each other, the bottom sides of the sealing columns 22 are fixedly connected with the shifting plate 221, the middle portions of the sealing columns 22 are provided with empty grooves 222, inner ends of the empty grooves 222 are fixedly connected with shaft rods, outer ends of the torsion springs 223 are fixedly connected with the inner walls of the empty grooves 222, the bottoms of the sealing columns 22 are fixedly connected with pressure rods 224, the pressure rods 224 slide in the protection cavities 21 fixed in the sanding head 2, the baffle 23 is located on the vertical sliding connection side face of the sanding head 2, the baffle 23 comprises upper section plates 234 located in the protection cavities 21, the bottom ends of the upper section plates 234 penetrate through the sanding box and are rotatably connected with the lower section plates 231, arc cylinders 233 are fixedly connected onto the upper section plates 234, arc rods 232 fixedly connected onto the lower section plates 231 and slide in the arc cylinders 233, and arcs connected onto the adjacent upper section plates 234 are communicated through hoses 25.

After the shifting plate 221 connected with the sealing post 22 rotates under the action of the sand box, the pressing rod 224 fixedly connected with the sealing post 22 rotates along with the sealing post 22 in the protection cavity 21 until the pressing rod 224 abuts against the baffle plate 23 in the protection cavity 21, the upper section plate 234 slides downwards relative to the sand box under the action of the pressing rod 224 until the baffle plate 23 is positioned in the sand box, the baffle plate 23 is blocked at the front side of the sand outlet of the sand adding head 2, so that discharged molding sand can be locally accumulated in the sand box, the influence on the flat filling of the molding sand in the sand box due to the insufficient filling of the local molding sand caused by the fluidity of the molding sand is avoided, the baffle plate 23 is arranged in a way that the upper section plate 234 is rotatably connected with the lower section plate 231, the arc cylinder 233 connected with the upper section plate 234 is communicated with the air cylinder 24 through the hose 25, the arc rod 232 is slidably connected with the arc cylinder 233, the air is inflated into the arc cylinder 233 through the air cylinder 24, and the arc rod 232 slides in the arc cylinder 233, thereby make lower section board 231 constantly shake in the sand box, make the molding sand pack in the sand box tight, avoid simultaneously adding the 2 putty of sand head, after adding the sand and accomplish, sealed post 22 restores under torsion spring 223 effect, depression bar 224 resets, baffle 23 rises under tension spring 211 effect and resets.

Example 3

As shown in FIG. 1, a casting sand-adding device comprises a material box 1, a shaft barrel 11 is fixedly connected in the material box 1, a spiral delivery shaft 12 is rotatably connected in the shaft barrel 11, one end of the shaft barrel 11 is communicated with the material box 1, the spiral delivery shaft 12 extends to the open end of the bottom of the shaft barrel 11, considering that the spiral delivery shaft 12 is used for conveying molding sand, the spiral delivery shaft 12 is arranged to incline to the horizontal plane so as to convey the molding sand, the top end of the shaft barrel 11 is connected with a sand-adding head 2 outside the material box 1 through a sand-adding pipe 13, a mold seat is arranged below the sand-adding head 2 for placing a sand box and a mold, a shaft rod is fixedly connected in the sand-adding head 2, a sealing column 22 is rotatably connected on the shaft rod, the sealing column 22 comprises a semi-cylinder attached to one side of the sand-adding head 2, the side of the semi-cylinder is fixedly connected with a semi-elliptic cylinder with the same minor axis as the semi-cylinder in diameter, and the sealing column 22 is linearly arrayed along the axial direction of the shaft rod, the adjacent sealing columns 22 are attached, the bottom sides of the sealing columns 22 are fixedly connected with the shifting plate 221, the middle parts of the sealing columns 22 are provided with empty grooves 222, the inner ends of the torsion springs 223 are fixedly connected with the shaft rods and the outer ends of the torsion springs 223 are fixedly connected with the inner walls of the empty grooves 222, the mold seat comprises a seat plate 5 fixed on the conveyor belt 3, the seat plate 5 is provided with a plurality of seat plates 5 which are linearly arrayed along the length direction of the conveyor belt 3, the inner side of the conveyor belt 3 is attached to the conveyor roller 6, the conveyor roller 6 is coaxially and fixedly connected with the conveyor shaft 7, the conveyor shaft 7 is rotatably connected onto the conveyor frame 4, the seat plate 5 is fixedly connected with the supporting mechanism 51, and the sand box on the seat plate 5 is fixed through the supporting mechanism 51, so that the sand box is subjected to the shifting plate 221 acting force and is kept relatively fixed with the seat plate 5 in the sand adding process.

In the process of adding sand, a sand box is fixed on a seat plate 5 through a supporting mechanism 51, the seat plate 5 and the sand box fixed on the seat plate 5 are driven by a conveyor belt 3 to move horizontally relative to a sand adding head 2, the sand box passes below the sand adding head 2 and contacts with a shifting plate 221 at the bottom side of the supporting head, a sealing column 22 rotates to open the sand adding head 2 to start adding sand, a plurality of sealing columns 22 rotatably connected on a shaft rod rotate the sealing columns 22 in corresponding width ranges according to the width of the sand box, the sand adding can be carried out according to the types of the sand boxes with different widths, after the sand adding is finished, the seat plate 5 drives the sand box to move from one side of the sand adding head 2 to the other side of the sand adding head 2, after the sand adding is finished, the sealing columns 22 rise back under the elastic force of a torsion spring 223 to close the bottom of the sand adding head 2 to stop adding sand, the seat plate 5 carrying another sand box moves below the sand adding head 2 to start adding sand again, can realize adding sand in succession, improve casting efficiency.

Example 4

As shown in figures 1-8, a casting sand adding device comprises a material box 1, a shaft barrel 11 is fixedly connected in the material box 1, a spiral conveying shaft 12 is rotatably connected in the shaft barrel 11, one end of the shaft barrel 11 is communicated with the material box 1, the spiral conveying shaft 12 extends to the open end of the bottom of the shaft barrel 11, the spiral conveying shaft 12 is arranged to be inclined with a horizontal plane so as to facilitate sand conveying in consideration of the use of the spiral conveying shaft 12 for sand conveying, the top end of the shaft barrel 11 is connected with a sand adding head 2 outside the material box 1 through a sand adding pipe 13, a mold seat is arranged below the sand adding head 2 and used for placing a sand box and a mold, a shaft rod is fixedly connected in the sand adding head 2, a sealing column 22 is rotatably connected on the shaft rod, the sealing column 22 comprises a semi-cylinder attached to one side of the sand adding head 2, the side surface of the semi-elliptic cylinder is fixedly connected with a semi-elliptic cylinder with the same diameter as the semi-cylinder, and the sealing column 22 is linearly arrayed along the axial direction of the shaft rod, the adjacent sealing columns 22 are attached, the bottom sides of the sealing columns 22 are fixedly connected with the shifting plate 221, the middle parts of the sealing columns 22 are provided with empty grooves 222, the empty grooves 222 are internally provided with torsion springs 223, the inner ends of the torsion springs are fixedly connected with the shaft rods, the outer ends of the torsion springs are fixedly connected with the inner walls of the empty grooves 222, the mold base comprises a base plate 5 fixed on the conveyor belt 3, the base plate 5 is provided with a plurality of base plates 5, the linear array of the base plates 5 is arranged along the length direction of the conveyor belt 3, the inner side of the conveyor belt 3 is attached with a conveyor roller 6, the conveyor roller 6 is coaxially and fixedly connected with a conveyor shaft 7, the conveyor shaft 7 is rotatably connected on the conveyor frame 4, the base plate 5 is fixedly connected with a support mechanism 51, the sand box on the base plate 5 is fixed through the support mechanism 51, the sand box is enabled to be subjected to the action force of the shifting plate 221 and is kept relatively fixed with the base plate 5 in the sand adding process, the support mechanism 51 comprises a support cylinder 511, a support rod 512 is slidably connected in the support cylinder 511, the supporting rod 512 is hollow, the end of the supporting rod 512 is fixedly connected with a first cross rod 513, the side surface of the supporting rod 512 is communicated with a sliding cylinder 515, a sliding rod 516 is connected in the sliding cylinder 515 in a sliding manner, the outer end of the sliding rod 516 is fixedly connected with a second cross rod 514, the inner end of the sliding rod 516 is connected with the inner end of the sliding cylinder 515 through an elastic rope 517, the side surface of the conveying frame 4 is fixedly connected with a wheel frame 43, a supporting wheel 44 which is abutted against the bottom side of the seat plate 5 is rotatably connected on the wheel frame 43, and the bottom side of the conveying frame 4 is connected with a lifting rod 42 through a lifting pipe 41.

Most of the supporting rods 512 of the seat plate 5 are located in the supporting cylinders 511 under the condition that the sand box is not carried by the sand box, the supporting cylinders 511 are communicated through an external pressurizing device, after the cope box is placed on the seat plate 5, the sliding rods 516 slide out from the sliding cylinders 515 to abut against the side surfaces of the sand box after being pressurized by the external pressurizing device, the supporting mechanisms 51 are respectively arranged on four sides of the seat plate 5, the supporting mechanisms 51 on two sides are symmetrically arranged, the supporting cylinders 511 of the two symmetrically arranged supporting mechanisms 51 are communicated through the same pressurizing device, the sand box on the seat plate 5 is centered under the thrust action of the first cross rod 513, after the first cross rod 513 abuts against the sand box, air pressure acts on the sliding rods 516 in the sliding cylinders 515 through the sliding cylinders 515 to slide out the sliding rods 516, so that the second cross rods 514 abut against the side surfaces of the sand box, namely, each side surface of the sand box is supported by the first cross rod 513 and the second cross rod 514 in the supporting mechanisms 51, so as to ensure that the sand box contacts with the shifting plate 221 at the bottom of the sand adding head 2, the sand box and the seat plate 5 are relatively fixed, after the sand adding is completed, the pressurizing device extracts air in the supporting cylinder 511, the sliding rod 516 is pulled back into the sliding cylinder 515 under the action of the elastic rope 517, the supporting rod 512 connected with the first cross rod 513 is recovered into the supporting cylinder 511 under the action of pressure difference, the sand box after the sand adding is completed can be taken down and can be automatically supported, the first cross rod 513 and the second cross rod 514 are matched and supported on one side of the sand box, the supporting surface is larger, when the sand adding is performed on sand boxes with different heights, the top surface of the sand box is flush with the shifting plate 221, the height of the conveying frame 4 can be adjusted by adjusting the positions of the lifting pipe 41 and the lifting rod 42, the lifting rod 42 slides in the lifting pipe 41, and the lifting pipe 41 is communicated with the external lifting pressurizing device.

Claims (10)

1. The utility model provides a casting adds sand device, includes workbin (1), workbin (1) through adding sand pipe (13) with add sand head (2) and be connected its characterized in that: the bottom of the sand adding head (2) is rectangular, a shaft lever is fixedly connected with the inner bottom end of the sand adding head (2), a plurality of sealing columns (22) which are sequentially attached are rotatably connected onto the shaft lever, each sealing column (22) comprises a semi-cylinder, one side of each semi-cylinder is attached to the inner side of the sand adding head (2), and the side surface of each semi-cylinder is fixedly connected with an elliptic cylinder; a mould seat is arranged below the sand adding head (2).

2. The foundry sand adding device of claim 1, characterized in that: sealed post (22) bottom side fixedly connected with dials board (221), sealed post (22) are inside to be connected with the axostylus axostyle through torsion spring (223), sealed post (22) top fixed connection depression bar (224), and depression bar (224) are contradicted with vertical sliding connection's in sanding head (2) side baffle (23), and baffle (23) quantity corresponds with sealed post (22) quantity.

3. The foundry sanding device of claim 2, wherein: baffle (23) include through tension spring (211) with add upper segment board (234) that sand head (2) are connected, upper segment board (234) rotate with lower section board (231) to be connected, upper segment board (234) side is connected with arc pole (232) that lower section board (231) are fixed through arc section of thick bamboo (233), through the trachea intercommunication between the adjacent arc section of thick bamboo (233), trachea and cylinder (24) intercommunication that add sand head (2) side.

4. A foundry sand adding device according to claim 3, characterized in that: the upper half section of the baffle (23) is connected with the sand adding head (2) through a tension spring (211).

5. The foundry sanding device of claim 1, wherein: the mould seat is including connecting a plurality of bedplate (5) on conveyer belt (3), and is a plurality of bedplate (5) distribute along conveyer belt (3) length direction, and conveyer belt (3) inboard is laminated with transfer roller (6) of rotating the connection on conveying frame (4).

6. The foundry sand adding device of claim 5, wherein: the utility model discloses a support device, including bedplate (5), bedplate (5) are last to be connected with side direction supporting mechanism (51), side direction supporting mechanism (51) are including connecting a plurality of support covers on bedplate (5), and sliding connection supports slide bar (516) in supporting the cover, supports slide bar (516) tip and first support horizontal pole fixed connection, support the cover and support cylinder (24) intercommunication.

7. The foundry sanding device of claim 6, wherein: the supporting sleeves are two groups, each group of supporting sleeves is two, the two supporting sleeves in the same group are symmetrically connected to two sides of the seat plate (5), and the supporting sleeves are fixedly connected with the seat plate (5) through pins.

8. The foundry sanding device of claim 7, wherein: the supporting sliding rod (516) is hollow, the side face of the supporting sliding rod (516) is fixedly connected with a sliding barrel (515), the sliding barrel (515) is connected with the sliding rod (516) in a sliding mode, the bottom end of the sliding rod (516) is fixedly connected with a second supporting cross rod, the inner end of the sliding barrel (515) is connected with an elastic rope (517), and the other end of the elastic rope (517) is fixed with the sliding rod (516).

9. The foundry sand adding device of claim 5, wherein: the position, below the sand adding head (2), of the sliding rod (516) conveying frame (4) is rotatably connected with a supporting wheel (44), and the supporting wheel (44) is tangent to the bottom surface of the seat plate (5).

10. The foundry sanding device of claim 9, wherein: the conveying frame (4) is fixedly connected with lifting support legs at the bottom side, the lifting support legs comprise lifting rods (42) fixedly connected with the conveying frame (4), and the lifting rods (42) slide in the lifting pipes (41).

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