阅读说明：本技术 一种铜炉翻砂铸造用砂箱 (Sand box for copper furnace sand casting ) 是由 徐永上 全彩勤 于 2021-08-26 设计创作，主要内容包括：本发明涉及砂箱领域,尤其是涉及一种铜炉翻砂铸造用砂箱,包括砂箱主体,所述砂箱主体的内部靠近下端的位置通过螺丝固定连接有滤网,且的内部由滤网一分为二,所述滤网的上侧为砂腔,下侧为收集腔,所述滤网的下方靠近砂箱主体前端外表面底部开设有开口,开口中设置有收集箱,所述收集箱通过开口活动连接在收集腔中并与开口四周密封,所述收集箱的外表面前端中间位置固定连接有握把,所述滤网的上侧设置有底板,且底板的左右两侧均固定连接有转轴。该装置结构不仅能解决铸造前砂石左右两边的压实,还能够从上往下进行压实,在活动板复位的时候能够自动排砂,大大提高回收效率,且完成浇注后,能够粉碎结块的砂石,提高砂石的回收效益。(The invention relates to the field of sand boxes, in particular to a sand box for copper furnace foundry casting, which comprises a sand box main body, wherein a position, close to the lower end, inside the sand box main body is fixedly connected with a filter screen through screws, the inside of the sand box main body is divided into two parts by the filter screen, the upper side of the filter screen is a sand cavity, the lower side of the filter screen is a collection cavity, an opening is formed in the lower part of the filter screen, close to the bottom of the outer surface of the front end of the sand box main body, a collection box is arranged in the opening, the collection box is movably connected in the collection cavity through the opening and is sealed with the periphery of the opening, a handle is fixedly connected to the middle position of the front end of the outer surface of the collection box, a bottom plate is arranged on the upper side of the filter screen, and rotating shafts are fixedly connected to the left side and the right side of the bottom plate. The device structure can not only solve the compaction on both sides about the grit before the casting, can also follow and down carry out the compaction, can arrange the sand automatically when the fly leaf resets, improves recovery efficiency greatly, and accomplishes the pouring back, can smash the grit of caking, improves the recovery benefit of grit.)

1. The utility model provides a copper stove foundry sand case for casting, includes sand box main part (1), its characterized in that: the sand box comprises a sand box main body (1), a filter screen (13) is fixedly connected to the position, close to the lower end, in the sand box main body (1) through screws, the inner space of the sand box main body (1) is divided into two parts by the filter screen (13), a sand cavity is arranged on the upper side of the filter screen (13), a collecting cavity is arranged on the lower side of the filter screen (13), an opening (23) is formed in the lower portion of the filter screen (13), close to the bottom of the outer surface of the front end of the sand box main body (1), a collecting box (7) is arranged in the opening (23), the collecting box (7) is movably connected into the collecting cavity through the opening (23) and is sealed with the periphery of the opening (23), a handle (8) is fixedly connected to the middle position of the front end of the outer surface of the collecting box (7), a bottom plate (9) is arranged on the upper side of the filter screen (13), rotating shafts (12) are fixedly connected to the left side and the right side of the bottom plate (9), one end of each rotating shaft (12) penetrates through the inner walls of the two sides of the sand box main body (1) and is rotatably connected through bearings, the sand box comprises a bottom plate (9), wherein air cylinders (10) are arranged on two sides of the outer surface of the upper end of the bottom plate (9), the air cylinders (10) are fixed to the inner wall of a sand box main body (1), an output end of each air cylinder (10) is fixedly connected with a movable plate (2), the movable plate (2) is located on the upper side of the bottom plate (9), the lower end face of each movable plate is attached to the upper end face of the bottom plate (9), a first notch (20) is formed in the position, close to the upper end, of the inside of each movable plate (2), a cavity (21) is formed in the inside of each movable plate (2), the cavity (21) is communicated with the first notch (20), movable blocks (6) are movably connected in the inside of the cavity (21), the upper ends of the movable blocks (6) are in contact with the lower end face of a pressing plate (3), the pressing plate (3) penetrates through the insides of the two groups of the first notches (20), and a second notch (22) is formed in the middle position of the upside of the inside of the first notch (20), and the middle part of the outer surface of the upper end of the pressing plate (3) is fixedly connected with a limiting block (4) at a position corresponding to the second notch (22).

2. The sand box for copper furnace foundry casting according to claim 1, characterized in that: the up end central point of stopper (4) puts the slope and has seted up slot rolling (5), and the inside up end of fly leaf (2) also is the slope structural design and unanimous with the incline direction of stopper (4), the embedded ball (17) that is connected with of inside up end right side corner of fly leaf (2), and the lower terminal surface third region setting of ball (17) in the inside of slot rolling (5) and with slot rolling (5) swing joint, two during fly leaf (2) move in opposite directions, ball (17) roll and displacement along slot rolling (5).

3. The sand box for copper furnace foundry casting according to claim 1, characterized in that: the spring (11) is uniformly distributed between the bottom of the movable block (6) and the bottom of the movable plate (2) at equal intervals, the upper end of the spring (11) is fixedly connected with the movable block (6), the lower end of the spring is fixed with the bottom end of the inner surface of the movable plate (2), the gap between the upper end of the movable block (6) in a silent state and the movable plate (2) is 5-10 cm, the longitudinal section of the limiting block (4) is in a splayed structural design, the two sides of the limiting block are inclined, the inclination of the limiting block is completely consistent, and the limiting block (4) and the second notch (22) are matched with each other and are movably connected.

4. The sand box for copper furnace foundry casting according to claim 1, characterized in that: the lower extreme surface middle part of fly leaf (2) corresponds position embedded ball two (16) with pivot (12), and the surface upper end of pivot (12) has seted up rolling groove two (15), the position of rolling groove two (15) corresponds with ball two (16), and rolling groove two (15) are S type structural design, works as when fly leaf (2) remove to pivot (12) upper end surface, rolling groove two (15) are arranged in to ball two (16), roll displacement in rolling groove two (15) of S type structure and force pivot (12) to carry bottom plate (9) horizontal hunting.

5. The sand box for copper furnace foundry casting according to claim 1, characterized in that: the outer surfaces of the front side and the rear side of the bottom plate (9) are connected with a first magnet (18) in an embedded mode, the front side and the rear side of the inner wall of the sand box main body (1) are connected with a second magnet (19) in an embedded mode at positions corresponding to the first magnet (18) in a horizontal mode, and the second magnet (18) and the first magnet (19) are adsorbed in a magnetic force mode.

6. The sand box for copper furnace foundry casting according to claim 1, characterized in that: filter screen (13) are the design of arc structure, and its up end equidistance evenly distributed is fixed with garrulous sand piece (14), and is located garrulous sand piece (14) at bottom plate (9) terminal surface middle part and steadilys decrease to both sides in proper order for central length, reserve 8 to 15cm clearances between the bottom of garrulous sand piece (14) and filter screen (13), and bottom plate (9) are 0 to 25 through pivot (12) rotation angle range.

Technical Field

The invention relates to the field of sand boxes, in particular to a sand box for copper furnace foundry casting.

Background

The founding casting refers to producing castings by using clay bonded sand as a molding material, a sand box is needed during founding casting, a lower half mould is placed on a flat plate, the sand box is filled with sand and stones, the sand and stones are compacted and scraped, the lower half mould is manufactured, the manufactured sand mould is turned over for 180 degrees, an upper half mould is placed, a parting agent is scattered, the sand box is placed, the sand and stones are filled, compacted and scraped, the upper sand box is turned over for 180 degrees, the upper half mould and the lower half mould are taken out respectively, the upper half mould is turned over for 180 degrees and closed with the lower half mould, the sand mould is manufactured, and pouring is waited. Therefore, the sand box is an essential tool in the foundry casting process;

the sand box for copper furnace founding casting comprises a box body, wherein two side cavities are arranged at two ends of the box body, a side cover is arranged at the top of each of the two side cavities, an air cylinder is fixedly arranged in each of the two side cavities, a movable plate located in the box body is arranged on one side adjacent to each of the two air cylinders, and the movable plate is connected with the air cylinder through an upper pneumatic telescopic rod and a lower pneumatic telescopic rod. Can solve current copper stove foundry sand case for casting because need go on compacting to the grit of filling the sand box inside when using, and current copper stove foundry sand case for casting because inside lacks the subassembly that can ensure the compact effect of grit, thereby there is the defect that can't ensure compact effect, simultaneously because current copper stove foundry sand case for casting need open the sand leakage hole of sand box bottom after using up and let out the sand, because let out the sand hole and need overturn the sand box and just can open, thereby it is comparatively troublesome to make let out the sand.

The above patent still has the following problems in the specific use process: the movable plate is connected with the air cylinder through the upper pneumatic telescopic rod and the lower pneumatic telescopic rod, so that the problem that sand filled into a sand box needs to be compacted when the existing sand box for copper furnace sand casting is used can be solved, and only left and right sides can be compacted oppositely in the sand compacting process, and the sand can not be compacted from top to bottom; and then lead to the grit can not be comprehensive carry out the compaction operation, influence follow-up casting product formation quality, the grit after the completion of pouring simultaneously through high temperature copper water heating produces the caking easily, and then still needs artifical many times broken handle in follow-up reutilization in-process, wastes time and energy, reduces work efficiency.

Therefore, the sand box for copper furnace founding is provided.

Disclosure of Invention

The invention aims to provide a sand box for copper furnace sand casting, which solves the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a sand box for copper furnace sand casting comprises a sand box main body, wherein a position, close to the lower end, inside of the sand box main body is fixedly connected with a filter screen through screws, the inside of the sand box main body is divided into two parts by the filter screen, the upper side of the filter screen is a sand cavity, the lower side of the filter screen is a collecting cavity, an opening is formed in the lower side of the filter screen, close to the bottom of the outer surface of the front end of the sand box main body, a collecting box is arranged in the opening, the collecting box is movably connected in the collecting cavity through the opening and is sealed with the periphery of the opening, a handle is fixedly connected to the middle position of the front end of the outer surface of the collecting box, a bottom plate is arranged on the upper side of the filter screen, rotating shafts are fixedly connected to the left side and the right side of the bottom plate, one end of each rotating shaft penetrates through the inner walls of the two sides of the sand box main body and is rotatably connected with bearings, air cylinders are arranged on the two sides of the outer surface of the upper end of the bottom plate and are fixed with the inner wall of the sand box main body, and a movable plate is fixedly connected to the output end of each air cylinder, and the fly leaf is located the upside of bottom plate and the up end of lower terminal surface laminating in bottom plate, the inside position that is close to the upper end of fly leaf has seted up notch one, and the inside of fly leaf has seted up the cavity, the cavity communicates with each other with notch one, the inside swing joint of cavity has the movable block, and the upper end of movable block and the lower terminal surface contact of clamp plate, and two sets of the clamp plate has been run through to notch one inside, notch two have been seted up to the inside upside intermediate position of notch, the upper end surface middle part and the corresponding position fixedly connected with stopper of notch two of clamp plate.

Preferably, the upper end face central position of stopper inclines to set up slot rolling one, and the inside up end of fly leaf also is the slope structural design and unanimous with the incline direction of stopper, the embedded ball that is connected with of the inside up end right side corner of fly leaf, and the lower terminal surface third region of ball one set up in the inside of slot rolling one and with slot rolling swing joint, two during the fly leaf moves in opposite directions, ball rolls and the displacement along slot rolling one.

Preferably, springs are uniformly distributed between the bottom of the movable block and the bottom of the movable plate at equal intervals, the upper ends of the springs are fixedly connected with the movable block, the lower ends of the springs are fixed with the bottom end of the inner surface of the movable plate, the gap between the upper end of the movable block and the movable plate in a silent state is 5-10 cm, the longitudinal section of the limiting block is designed in a splayed structure, the two sides of the limiting block are inclined, the inclination of the limiting block is completely consistent, and the limiting block and the notch are mutually matched and movably connected.

Preferably, the middle part of the outer surface of the lower end of the movable plate corresponds to the rotating shaft and is connected with a second ball in an embedded mode, the upper end of the outer surface of the rotating shaft is provided with a second rolling groove, the position of the second rolling groove corresponds to the second ball, the second rolling groove is designed in an S-shaped structure, when the movable plate moves to the outer surface of the upper end of the rotating shaft, the second ball is arranged in the second rolling groove, and the second rolling groove rolls and displaces in the second rolling groove of the S-shaped structure to force the rotating shaft to carry the bottom plate to swing left and right.

Preferably, the outer surfaces of the front side and the rear side of the bottom plate are connected with a first magnet in an embedded mode, the front side and the rear side of the inner wall of the sand box main body are connected with a second magnet in an embedded mode at positions corresponding to the first magnet in the horizontal mode, and the second magnet and the first magnet are adsorbed in a magnetic force mode.

Preferably, the filter screen is arc structural design, and its up end equidistance evenly distributed is fixed with garrulous sand piece, and the garrulous sand piece that is located terminal surface middle part under the bottom plate steadilys decrease to both sides in proper order for central length, reserve 8 to 15cm clearances between the bottom of garrulous sand piece and the filter screen, and bottom plate 9 is 0 to 25 through pivot rotation angle scope.

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

1. the movable plates, the pressure plates, the limiting blocks, the air cylinders and other structural components are added into the device to jointly form the compaction mechanism, so that the sand stones on the upper side of the filter screen can be compacted tightly in opposite directions through the compaction mechanism in the using process, the limiting blocks are further utilized to drive the pressure plates downwards in the opposite movement process of the movable plates on the two sides, the sand stones on the lower side of the pressure plates are extruded downwards, the full compaction operation of the sand stones on the upper side of the bottom plate is further realized, the sand stone compaction effect is ensured, and the working efficiency and the product qualification rate of equipment are improved;

2. a filter screen, a collection cavity, a collection box, a bottom plate, a rotating shaft connected to two ends of the bottom plate and other structural components are added in the sand discharging device to jointly form a sand discharging mechanism, after sand stone is cast, the movable plate moves in reverse direction under the action of an air cylinder until the lower end of the movable plate is separated from the bottom plate, a ball II at the lower end of the movable plate rolls in a rolling groove II of an S-shaped structure on the upper end face of the rotating shaft and drives the rotating shaft to swing through displacement, at the moment, a gap between the bottom plate and the side wall of a sand box body is opened, sand stones on the upper side of the bottom plate drive the lower bottom plate to turn over and bump through rotation of the rotating shaft, then sand stones on the upper side of the bottom plate are discharged into the collection cavity on the lower side of the bottom plate, filtered by the filter screen and fall into the collection box, and the sand discharging mechanism is matched with the air cylinder in a compaction mechanism to drive the movable plate to move in reverse direction to realize rapid discharge of the sand stones on the upper side of the bottom plate, the sand on the upper side is bumped in a mode of overturning the bottom plate, and the nodules are discharged in a shaking and dispersing mode without influencing the utilization of the next sand;

3. a series of affiliated structural components such as broken sand blocks, filter screens and the like are added to the sand crushing mechanism, the movable plate resets, the sand discharging mechanism enables the movable plate to swing left and right, the sand crushing mechanism is driven to move, the broken sand blocks crush the nodular massive sand stones remained on the filter screens, and then the broken sand blocks enter the collecting box through the filter screens, so that the recovery benefit of the sand stones is greatly improved, the cost is reduced, and the working efficiency is increased.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an overall structural view of the present invention;

FIG. 2 is a combined view of the sand discharge mechanism and the compaction mechanism of the present invention;

FIG. 3 is a left side view of the movable plate of FIG. 2 of the present invention;

FIG. 4 is a cross-sectional view taken at B-B of FIG. 3 in accordance with the present invention;

FIG. 5 is an enlarged schematic view at A of FIG. 1 of the present invention;

FIG. 6 is a combination view of the rotating shaft and the second rolling groove of FIG. 2;

FIG. 7 is a block diagram of the sand discharge mechanism of FIG. 6 in accordance with the present invention;

fig. 8 is a structural view of the sand crushing mechanism of the present invention.

Description of reference numerals:

1. a flask main body; 2. a movable plate; 3. pressing a plate; 4. a limiting block; 5. rolling a first groove; 6. a movable block; 7. a collection box; 8. a grip; 9. a base plate; 10. a cylinder; 11. a spring; 12. a rotating shaft; 13. filtering with a screen; 14. crushing the sand; 15. rolling a second groove; 16. a second ball bearing; 17. a first ball; 18. a magnet I; 19. a second magnet; 20. a first notch; 21. a cavity; 22. a second notch; 23. and (4) opening.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 8, the present invention provides a technical solution:

a sand box for founding of a copper furnace comprises a sand box main body 1, wherein a filter screen 13 is fixedly connected to the position, close to the lower end, inside the sand box main body 1 through screws, the filter screen 13 is used for filtering sand blocks generated after casting and preparing for subsequent sand crushing work, the inside of the sand box main body 1 is divided into two parts through the filter screen 13, the upper side of the filter screen 13 is a sand cavity, the lower side of the filter screen 13 is a collection cavity, an opening 23 is formed in the lower portion of the filter screen 13, close to the bottom of the outer surface of the front end of the sand box main body 1, a collection box 7 is arranged in the opening 23 and used for collecting filtered sand stones for subsequent recycling, the collection box 7 is movably connected in the collection cavity through the opening 23 and sealed with the periphery of the opening 23, a handle 8 is fixedly connected to the middle position of the outer surface of the collection box 7, a bottom plate 9 is arranged on the upper side of the filter screen 13, and rotating shafts 12 are fixedly connected to the left side and the right side of the bottom plate 9, one end of the rotating shaft 12 penetrates through the inner walls of the two sides of the sand box main body 1 and is rotatably connected with a bearing in a sleeved mode, the rotating shaft 12 can drive the bottom plate 9 to be in a horizontal or inclined state, the two sides of the outer surface of the upper end of the bottom plate 9 are respectively provided with the air cylinder 10, the air cylinders 10 are fixed with the inner wall of the sand box main body 1, the output end of the air cylinders 10 is fixedly connected with the movable plate 2, the air cylinders 10 control the opposite movement or the opposite movement of the movable plate 2 through the output end, the movable plate 2 is positioned on the upper side of the bottom plate 9, the lower end face of the movable plate is attached to the upper end face of the bottom plate 9, a notch I20 is formed in the position, close to the upper end, of the movable plate 2, a cavity 21 is formed in the movable plate 2, the cavity 21 is communicated with the notch I20, the movable block 6 is movably connected in the cavity 21, and the upper end face of the movable block 6 is contacted with the lower end face of the pressing plate 3, two sets of the inside clamp plate 3 that runs through of notch one 20, movable block 6 cooperate together with clamp plate 3, fly leaf 2 at the in-process of two fly leaves 2 motion in opposite directions, form a sealed space, make the work of compaction mechanism go on smoothly, notch two 22 have been seted up to the inside upside intermediate position of notch one 20, the upper end surface middle part of clamp plate 3 corresponds position fixedly connected with stopper 4 with notch two 22, and at the in-process of two fly leaves 2 motion in opposite directions, utilize stopper 4 to drive clamp plate 3 and extrude movable block 6 downwards, and then realize the abundant compaction operation to the grit of bottom plate 9 upside, the inseparable effect of guarantee grit, improve equipment work efficiency and product percent of pass.

When the sand box is in operation, firstly, a certain amount of sand and stone are poured to the upper side of a bottom plate 9 in a sand box main body 1, secondly, the movable plate 2 is driven by the air cylinder 10 to move in opposite directions, and then the sand and stone on the upper side of the bottom plate 9 are compacted in a two-way surface mode, in the process, a user takes the pressing plate 3 through the limiting block 4 to scrape the upper side surface of the sand and stone, then, two ends of the pressing plate 3 are inserted into the first notch 20, at the moment, the limiting block 4 is located in the second notch 22, at the moment, the movable plate 2 is continuously driven by the air cylinder 10 to move in opposite directions to continuously press the sand and stone in the middle, the second notch 22 presses the limiting block 4 which is obliquely designed along with the moving displacement of the movable plate 2 so as to further press the pressing plate 3 downwards, at the moment, the movable block 6 in the cavity 21 is pressed by the downward force of the movable block 6 to move in the cavity 21 and compress the spring 11, and at the same time, the pressing plate 3 also moves downwards, carry out the compaction from last down to the grit on the bottom plate 9, whole compacting mechanism had both controlled the two-way face compaction to the grit on the bottom plate 9 this moment, realize again from last down compaction, the back is accomplished in the pouring casting work, cylinder 10 passes through output drive fly leaf 2 opposite movement, when the bottom of fly leaf 2 leaves the top surface of bottom plate 9, accomplish the grit of jolting the formula of the grit of side on the bottom plate 9 through arranging husky mechanism and accomplish and carry out the breakage to the grit after discharging, avoid the grit to influence next time the use through caking after the casting high temperature heating, thereby the completion is recycled to the grit.

As an embodiment of the present invention, as shown in fig. 4 and 5, a rolling groove one 5 is obliquely formed in a central position of an upper end surface of the limit block 4, an inner upper end surface of the movable plate 2 is also designed in an oblique structure and is consistent with an oblique direction of the limit block 4, a ball one 17 is connected to a right corner of the inner upper end surface of the movable plate 2 in an embedded manner, a one-third area of a lower end surface of the ball one 17 is disposed inside the rolling groove one 5 and is movably connected with the rolling groove one 5, and when the two movable plates 2 move in opposite directions, the ball one 17 rolls and displaces along the rolling groove one 5.

The during operation, at fly leaf 2 through the cylinder 10 drive and the in-process of motion in opposite directions, ball 17 rolls and the displacement motion along slot rolling 5 on stopper 4, this mode not only can reduce the frictional resistance between fly leaf 2 and the stopper 4, and can carry out the guidance nature displacement to the motion of fly leaf 2 on stopper 4 simultaneously, make its stopper 4 to the slope design evenly extrude the direction, make stopper 4 further control clamp plate 3 press down, and then carry out the compaction operation to the downside grit, cooperation both sides fly leaf 2 is accomplished and is pressed closely knit effect to the whole extrusion of grit.

As an embodiment of the present invention, as shown in fig. 4, springs 11 are uniformly distributed between the movable block 6 and the bottom of the movable plate 2 at equal intervals, an upper end of each spring 11 is fixedly connected to the movable block 6, a lower end of each spring 11 is fixed to the bottom of the inner surface of the movable plate 2, a gap between the upper end of the movable block 6 in a silent state and the movable plate 2 is 5 to 10cm, a longitudinal section of the limiting block 4 is designed to be in a splayed structure, two sides of the limiting block are inclined, the inclination of the limiting block is completely consistent, and the limiting block 4 and the second notch 22 are matched with each other and movably connected.

The during operation, when making two fly leafs 2 move in opposite directions, a splayed rolling slot 5 on stopper 4 rolls along two balls 17, ball 17 drives clamp plate 3 extrusion movable block 6 downwards through extrusion stopper 4 this moment, 6 rethread extrusion springs 11 of movable block warp, downstream in cavity 21, movable block 6 this moment, clamp plate 3, bottom plate 9 has constituted sealed space with the cooperation of fly leaf 2, guarantee the grit can not reveal, opposite directions about having realized simultaneously, from last compaction grit down, and then realize the abundant compaction operation to bottom plate 9 upside grit, guarantee grit inseparable effect, improve equipment work efficiency and product qualification rate realize from last compaction grit down simultaneously.

As an embodiment of the present invention, as shown in fig. 6 and 7, a second ball 16 is connected to the middle portion of the outer surface of the lower end of the movable plate 2 in an embedded manner at a position corresponding to the rotating shaft 12, a second rolling groove 15 is formed in the upper end of the outer surface of the rotating shaft 12, the second rolling groove 15 is corresponding to the second ball 16, and the second rolling groove 15 is designed in an S-shaped structure, when the movable plate 2 moves to the outer surface of the upper end of the rotating shaft 12, the second ball 16 is placed in the second rolling groove 15, and the second rolling groove 15 in the S-shaped structure is subjected to rolling displacement to force the rotating shaft 12 to carry the bottom plate 9 to swing left and right.

By adopting the technical scheme, after the pouring work is finished, the movable plate 2 moves reversely under the action of the cylinder 10 until the lower end of the movable plate 2 is separated from the bottom plate 9, and the balls two 16 at the lower end of the movable plate 2 roll in the rolling grooves two 15 of the S-shaped structure on the outer surface of the upper end of the rotating shaft 12, and the rotating shaft 12 is driven to swing through the displacement, at the moment, the bottom plate 9 and the gap on the side wall of the sand box main body 1 are opened, the sand stone on the upper side of the bottom plate 9 drives the lower bottom plate 9 to turn over and bump similarly through the rotation of the rotating shaft 12, so that the sand and stone on the upper side of the bottom plate 9 is discharged into the collecting cavity on the lower side of the bottom plate 9, filtered by the filter screen 13 and then dropped into the collecting box 7, the structure can quickly discharge the residual sand and stone on the upper side of the bottom plate 9 after the work is finished, and the sand and stones with the nodules are discharged in a shaking and dispersing mode through the filter screen 13, so that the use of the next work is not influenced, and preparation is also made for the subsequent sand crushing work.

As an embodiment of the present invention, as shown in fig. 8, first magnets 18 are embedded and connected to outer surfaces of front and rear sides of the bottom plate 9, second magnets 19 are embedded and connected to positions of front and rear sides of an inner wall of the flask main body 1 horizontally corresponding to the first magnets 18, and the second magnets 18 and the first magnets 19 are magnetically attracted.

When the sand box is in a silent state or a compaction state, the second magnet 18 and the first magnet 19 are attracted through magnetic force, and further, the bottom plate 9 is ensured to be horizontal in the silent state through the magnetic attraction guidance of the two magnets, and the bottom plate 9 is ensured not to have a gap opening between the sand box main body 1, so that the smooth implementation of compaction work is ensured, and the quality of finished products is improved.

As an embodiment of the present invention, as shown in fig. 8, the filter screen 13 is designed to have an arc-shaped structure, the upper end surface of the filter screen 13 is uniformly distributed and fixed with the sand crushing blocks 14 at equal intervals, the length of the sand crushing block 14 located in the middle of the lower end surface of the bottom plate 9 decreases gradually towards two sides in sequence, a gap of 8 to 15cm is reserved between the bottom end of the sand crushing block 14 and the filter screen 13, and the rotation angle of the bottom plate 9 through the rotating shaft 12 ranges from 0 to 25 °.

At the sediment outflow in-process, the grit that drops and collect the chamber passes through filter screen 13 and filters, tiny grit gets into collecting box 7, the grit that the nodulation becomes the piece drops on filter screen 13, at the sediment outflow in-process, bottom plate 9 takes place the slope, when producing the horizontal hunting, drive the broken sand piece 14 motion that is located bottom plate 9 below, broken sand piece 14 will remain the sand piece on filter screen 13 and hit the bits of broken glass, hit tiny grit rethread filter screen 13 that the back formed after the bits of broken glass and fall to collecting box 7 in, whole sediment outflow process is accomplished the back again, pull out collecting box 7 through handle 8, accomplish the recovery and recycle to the grit, the benefit of retrieving is greatly improved, and the production cost is reduced.

The working principle is as follows:

when the sand box main body 1 is used, the sand and stone inside the sand box main body 1 need to be compacted and scraped, after the sand and stone are filled in the sand box main body 1, the pressure plate 3 and the limiting block 4 penetrate through two sides of the first notch 20 and the second notch 22 respectively to be matched with each other, so that the pressure plate, the movable block 6 and the bottom plate 9 are matched with each other to form a sealed space, the two movable plates 2 are driven to move oppositely through the output end of the air cylinder 10, the rolling ball 17 rolls in the rolling groove 5 on the inclined plane of the limiting block 4 in the process that the movable plates 2 move oppositely, meanwhile, the limiting block 4 is driven to extrude the pressure plate 3 to generate downward extrusion force on the movable block 6 because the left inclined plane and the right inclined plane of the limiting block 4 are in a splayed structure, the spring 11 is deformed by the downward pressure of the movable block 6, the movable block 6 moves downward in the cavity 21 to compress the spring 11, and the sand and stone on the bottom plate 9 in the sand box main body 1 are subjected to left side and right side and upper side forces, thereby playing the role of compaction and strickling. When the pouring work is finished, the gravels need to be discharged, the output end of the air cylinder 10 drives the two movable plates 2 to move oppositely, when the second balls 16 at the bottoms of the movable plates 2 enter the second S-shaped rolling groove 15 formed in the upper surface of the rotating shaft 12, the rotating shaft 12 is forced to carry the bottom plate 9 to swing left and right through rolling displacement in the second S-shaped rolling groove 15, the bottom plate 9 tilts and vibrates, the opening of the side wall of the sand box main body 1 and the opening of the bottom plate 9 are opened at the moment, the gravels remained on the bottom plate 9 enter the collecting box 7 through the filter screen 13, the broken sand block 14 at the lower end of the bottom plate 9 is driven to move while the bottom plate 9 swings left and right, the broken sand block 14 can break the sand remained on the filter screen 13, the broken sand passes through the filter screen 13 and enters the collecting box 7, and after the sand discharge is finished, the collecting box 7 is taken out through the handle 8 to recycle the gravels for recycling.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.