Sand box for metal casting and casting process

Abstract

The invention discloses a sand box for metal casting and a casting process, which relate to the technical field of metal casting, and include a sand box supporting column, a connecting mechanism, a sand box pressing mechanism, a lifting mechanism, a frame body and a sand box bottom plate, wherein two sand box supporting columns are provided, and a lifting mechanism is installed on one side of the two sand box supporting columns, and a rotating motor is installed on one side of the lifting mechanism, and a supporting block is sleeved on the output end of the rotating motor. By rotating an adjusting rod, the adjusting rod can drive a second threaded rod to rotate, and then the second threaded rod can drive a second slide plate, a first slide plate and a first pressing plate to move outward and separate from a molding sand model, and at the same time, the third threaded rod is driven to rotate by the first motor, and when the third threaded rod rotates, the second pressing plate can be moved away from the molding sand model inside the second sand box body, so that the box can be unpacked and sand can be dropped without the aid of external tools, and the sand box does not need to be transferred to other workshops, thereby greatly shortening the process flow.

Description

Technical Field

[0001] The invention relates to the technical field of metal casting, in particular to a sand box for metal casting and a casting process. Background Art

[0002] Casting is a method of pouring liquid metal into a casting cavity that is adapted to the shape of a part, and obtaining a part or blank after it is cooled and solidified. After searching, the Chinese patent announcement number CN220426765U discloses a sand box for metal casting. Although the device is equipped with upper and lower brackets, a telescopic rod is installed between the brackets, and a rotating shaft is installed at the side ends of the upper and lower sand boxes, which can facilitate the rapid rotation of the upper and lower sand boxes and the adjustment of the position of the sand boxes, thereby improving work efficiency, the sand box is not easy to demold after being cast inside, and needs to be transferred to a special workshop for unpacking and sand dropping, and then the sand box is recycled, resulting in cumbersome procedures and reduced production efficiency;

[0003] After searching, the Chinese patent publication number CN107685138A discloses a casting sand box. Although the casting sand box includes an upper sand box and a lower sand box, the upper sand box extends a convex plate toward the lower sand box, and the lower sand box is provided with a groove for the convex plate to be embedded, so that it is easier to align the boxes when closing them, but the sand box lacks a flipping mechanism, so that the sand box cannot achieve the effect of quick flipping. In particular, when the sand box is large in size and weight, flipping and fixing it is time-consuming and labor-intensive, which reduces production efficiency. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a sand box for metal casting and a casting process, which solves the problem in the background art that the existing sand box is inconvenient to unpack and remove sand and to flip the sand box when in use.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a sand box and casting process for metal casting, comprising a sand box support column, a connecting mechanism, a sand box clamping mechanism, a lifting mechanism, a frame and a sand box bottom plate, wherein two sand box support columns are provided, and a lifting mechanism is installed on one side of the two sand box support columns, and a rotating motor is installed on one side of the lifting mechanism, and a supporting block is sleeved on the outside of the output end of the rotating motor, and a sand box clamping mechanism is fixed to one side of the support block by screws, a second sand box body is provided inside the sand box clamping mechanism, and connecting mechanisms are installed on the outside of both sides of the sand box clamping mechanism, the sand box clamping mechanism is connected to the frame through the connecting mechanism, the sand box bottom plate is fixed to the bottom of the sand box support column by bolts, and both ends of the sand box bottom plate are connected to both sides of the sand box support column through sand box support arms, and sand box driving mechanisms are installed at both ends of the sand box bottom plate, the device as a whole is controlled by an external controller, and a charging power supply for power supply is installed inside the sand box support column.

[0006] Preferably, the lifting mechanism includes a lifting motor installed on one side of the sand box support column by screws, and a first threaded rod is mounted on the outside of the bottom output end of the lifting motor. The bottom of the first threaded rod is rotatably connected to one side of the bottom of the sand box support column, and the outside of the first threaded rod is threadedly connected to the lifting block. The interior of the two ends of the lifting block is in sliding contact with the outer wall of the sliding rod, the bottom and top ends of the sliding rod are respectively welded to one side of the sand box support column, and one side of the lifting block is connected to the rotating motor by screws.

[0007] By adopting the above technical solution, the lifting motor drives the first threaded rod to rotate. When the first threaded rod rotates, it can drive the lifting block to slide downward through the sliding rod, so that the lifting block can drive the second sand box body to move downward, so that the second sand box body is placed on the lower half mold plate, and then the molding sand is filled in, compacted and scraped flat to complete the lower mold modeling, so that the second sand box body can be placed on the lower half mold plate without the aid of external equipment, and the second sand box body can be moved up and down at the same time, so that the bottom of the second sand box body can reserve a turning space.

[0008] Preferably, the sand box clamping mechanism includes a first motor installed on one side of the support block by screws, and the first motor is fixedly connected to the frame on both sides by screws. Two frames are provided, and second pressure plates are provided inside the two frames. Both ends of the second pressure plate are in sliding contact with the inner wall of the second sand box body, and the inside of the second pressure plate is threadedly connected to one end of the third threaded rod, and the other end of the third threaded rod is sleeved on the outside of the output end of the first motor.

[0009] By adopting the above technical scheme, the adjusting rod is rotated, so that the second threaded rod can be driven to rotate through the adjusting rod, and then the second threaded rod can drive the second slide plate, the first slide plate, and the first pressure plate to move inward to achieve the effect of compacting the molding sand. At the same time, the third threaded rod is driven to rotate by the first motor. When the third threaded rod rotates, the second pressure plate can squeeze the molding sand inside the second sand box body, and the second threaded rod is driven to rotate under the action of the second motor. The second threaded rod can drive the fourth slide plate and the third slide plate to squeeze the molding sand inside the second sand box body, thereby achieving the effect of compacting the molding sand inside the first sand box body and the second sand box body.

[0010] Preferably, one side surface of the second pressure plate is in sliding contact with the end of the third slide plate, the third slide plate is distributed at both ends of the fourth slide plate, the interior of the fourth slide plate is threadedly connected to one end of the second threaded rod, the other end of the second threaded rod is connected to the output end of the second motor, and the second motor is installed outside the frame; specifically, one side surface of the third slide plate is provided with a raised groove, and one side of the third slide plate is slidingly connected to a groove on the surface of one side of the fourth slide plate, and the cross-section of the groove on the surface of one side of the fourth slide plate is a T-shaped structure.

[0011] By adopting the above technical solution, the third slide plate can slide through the fourth slide plate when the second pressing plate moves inward, so that the molding sand inside the second sand box body can always be squeezed by the second pressing plate, the fourth slide plate and the third slide plate.

[0012] Preferably, the connecting mechanism includes a connecting rod rotatably connected to one side of the frame, the outside of the connecting rod is fixedly connected to one end of the second steel belt, the other end of the second steel belt is inserted into the inside of the winding shaft and fixed, and the two ends of the winding shaft are respectively rotatably connected to the rotating arm and the bottom of the connecting arm, one end of the top of the connecting arm is connected to the limit rod through the sand box connecting belt, the limit rod is engaged with the slot, and the slot is welded to both sides of the outer wall of the first sand box body;

[0013] By adopting the above technical solution, the limiting rod is engaged with the slot on one side of the first sand box body, and then the rotating arm is pulled up and down, and the second card is driven to rotate by the rotating arm. The second card is engaged with the ratchet to drive the ratchet to rotate. After each rotation, the ratchet can be fixed in position by the first card. By continuously pulling the rotating arm, the ratchet can continuously drive the winding shaft to rotate, thereby tightening the second steel belt, so that the first sand box body and the second sand box body can be tightly connected.

[0014] Specifically, ratchets are provided at both ends of the winding shaft, and the ratchets are respectively engaged with the bottom end of the first card and the second card, and a second spring is provided at the top end of the second card, and the top end of the second spring is embedded in the rotating arm, and the two sides of the second card slide with the grooves on the surface of the rotating arm, and the two sides of the first card slide with the grooves on the surface of the connecting arm, and the top end of the first card is connected to the first spring, and the top end of the first spring is embedded in the connecting arm.

[0015] By adopting the above technical solution, the first card and the second card can be disengaged from the ratchet by sliding the first card and the second card, so that the second steel belt can be loosened, and then the limit rod can be taken out from the inside of the card slot, so that the first sand box body and the second sand box body can be easily separated.

[0016] Preferably, the frame includes a first sand box body, which is threadedly connected to a fourth threaded rod, four of which are provided, an adjusting rod is externally mounted on one end of the fourth threaded rod, and the other end of the fourth threaded rod is rotatably connected to the first pressure plate and the second pressure plate respectively, two first pressure plates are provided, and the two surfaces of the first pressure plates are in sliding contact with one end of the first slide plate, and the other end of the first slide plate is slidably connected to the surface of the first pressure plate, a groove is provided on the surface of the first pressure plate, and the cross-section of the groove is a T-shaped structure.

[0017] By adopting the above technical solution, the adjusting rod can drive the second threaded rod to rotate, so that the second threaded rod can drive the second slide plate, the first slide plate, and the first pressure plate to move inward and press the molding sand, which is beneficial to compacting the molding sand inside the first sand box body.

[0018] Preferably, the top edges of the first flask body and the second flask body are both provided with strip-shaped protruding structures, and the bottoms of the first flask body and the second flask body are both provided with grooves that match the top strip-shaped protruding structures.

[0019] Preferably, driving motors are embedded inside the two ends of the sand box bottom plate, and a transmission gear is mounted on the outside of the output end of the driving motor. The transmission gear is meshed and connected with the driven gear. The top of the driven gear is welded to the bottom of the rotating shaft, and the rotating shaft is rotatably connected to the end of the sand box bottom plate. A driving block is installed at the bottom of the driven gear by screws, and a motor is arranged inside the driving block. The motor inside the driving block is used to drive the driving wheel on one side to rotate.

[0020] By adopting the above technical solution, the driving motor drives the transmission gear to rotate, and the transmission gear can drive the driven gear to rotate while rotating. The driven gear can drive the driving block to adjust the direction. The motor inside the driving block can drive the driving wheel to rotate, so that the driving wheel can drive the first sand box body and the second sand box body to move, so that the first sand box body and the second sand box body can be easily moved to the designated position for grouting.

[0021] Preferably, the method is as follows:

[0022] S1: Place the lower half mold plate with the product outline on the ground below the second sand box body, and then drive the first threaded rod to rotate through the lifting motor of the lifting mechanism. The first threaded rod can drive the lifting block to slide downward through the sliding rod while rotating, so that the lifting block can drive the second sand box body to move downward, so that the second sand box body is placed on the lower half mold plate, and then fill in the molding sand, compact and flatten it, and complete the lower mold molding;

[0023] S2: The second flask body is driven to move upward by the lifting mechanism, and then the support block is driven to rotate by the rotating motor. The support block can drive the second flask body to flip while rotating, and the upper half mold plate with the product outline is placed on the top of the second flask body, and the parting agent is sprinkled, and the first flask body is placed on the top of the upper half mold plate, so that the groove at the bottom of the first flask body can be embedded with the top of the second flask body;

[0024] S3: By engaging the limit rod with the slot on one side of the first sand box body, the rotating arm is pulled up and down, and the second card is driven to rotate by the rotating arm. The second card is engaged with the ratchet wheel to drive the ratchet wheel to rotate. After each rotation, the ratchet wheel can be fixed in position by the first card. By continuously pulling the rotating arm, the ratchet wheel can continuously drive the winding shaft to rotate, thereby tightening the second steel belt, so that the first sand box body and the second sand box body can be tightly connected, and the molding sand is filled in the first sand box body to be compacted and scraped flat;

[0025] S4: The support block is driven to rotate by a rotating motor, so that the support block can simultaneously drive the first sand box body and the second sand box body to flip. After the first sand box body and the second sand box body are flipped 180 degrees, the first sand box body and the second sand box body are driven to move downward by a lifting mechanism, so that the first sand box body can be placed on the ground, and the first card and the second card are disengaged from the ratchet by sliding the first card and the second card, so that the second steel belt can be loosened, and then the limit rod is taken out from the inside of the card slot, and the first sand box body and the second sand box body can be connected separately, and the second sand box body is driven to move upward by the lifting mechanism, so that the first sand box body and the second sand box body are separated, so that the upper half mold plate and the lower half mold plate can be taken out;

[0026] S5: After the upper half-mold plate and the lower half-mold plate inside the first sand box body and the second sand box body are taken out, the first sand box body and the second sand box body are closed again through the lifting mechanism and reconnected through the connecting structure, so that the first sand box body and the second sand box body are lifted up by the lifting mechanism, and the transmission gear is driven to rotate by the driving motor. When the transmission gear rotates, it can drive the driven gear to rotate, and the driven gear can drive the driving block to adjust the direction. The motor inside the driving block can drive the driving wheel to rotate, so that the driving wheel can drive the first sand box body and the second sand box body to move, so that the first sand box body and the second sand box body can be moved to the specified position, so that grouting is performed at the specified grouting point through the grouting hole reserved on the top to complete the casting.

[0027] The present invention provides a sand box for metal casting and a casting process, which has the following beneficial effects:

[0028] (1) A metal casting sand box and casting process, when the first sand box body and the second sand box body move to the specified position and fall to the ground, the adjusting rod is rotated, so that the second threaded rod can be driven to rotate by the adjusting rod, and then the second threaded rod can drive the second slide plate, the first slide plate, and the first pressure plate to move outward and separate from the sand model, and at the same time, the third threaded rod is driven to rotate by the first motor. When the third threaded rod rotates, the second pressure plate can be kept away from the sand model inside the second sand box body, and the second threaded rod is driven to rotate under the action of the second motor. The second threaded rod can drive the fourth slide plate and the third slide plate to be kept away from the sand model inside the second sand box body, so that the sand models inside the first sand box body and the second sand box body can be removed, so that the sand can be unpacked and dropped out without the help of external tools, and there is no need to transfer the sand box to other workshops, which greatly shortens the process flow.

[0029] (2) A metal casting sand box and casting process, by engaging a limit rod with a slot on one side of a first sand box body, and then pulling a rotating arm up and down, the rotating arm drives the second card to rotate, the second card engages with a ratchet wheel to drive the ratchet wheel to rotate, the ratchet wheel can be fixed in position by the first card after each rotation, by continuously pulling the rotating arm, the ratchet wheel can continuously drive the winding shaft to rotate, thereby tightening the second steel belt, so that the first sand box body and the second sand box body can be tightly connected, and the supporting block is driven to rotate by a rotating motor, so that the supporting block can simultaneously drive the first sand box body and the second sand box body to flip, so that the sand box can be easily flipped without the aid of external tools, saving effort while improving production efficiency.

[0030] (3) The metal casting sand box and casting process drive the transmission gear to rotate through a driving motor. The transmission gear can drive the driven gear to rotate while driving the driven gear. The driven gear can drive the driving block to adjust the direction. The motor inside the driving block can drive the driving wheel to rotate, so that the driving wheel can drive the first sand box body and the second sand box body to move, so that the first sand box body and the second sand box body can be moved to a specified position, so that grouting can be performed at a specified grouting point to complete the casting, which is conducive to facilitating the movement of the sand box, so that the sand box can be quickly moved to the specified grouting point without the help of lifting equipment, thereby avoiding repeated lifting, fixing and disassembly of the sand box.

[0031] Therefore, the problem that the existing sand box is inconvenient to unpack and drop sand and to turn over the sand box during use is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a schematic diagram of the lifting mechanism structure of the present invention;

[0034] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0035] Figure 4 It is a schematic diagram of the structure of the connecting mechanism of the present invention;

[0036] Figure 5 This is a schematic diagram of the frame structure of the present invention;

[0037] Figure 6 It is a schematic diagram of the top view structure of the present invention;

[0038] Figure 7 It is a front view structural schematic diagram of the present invention;

[0039] Figure 8 It is a side view structural schematic diagram of the present invention.

[0040] In the figure, 1, sand box support column; 2, connecting mechanism; 201, limit rod; 202, slot; 203, rotating arm; 204, reel; 205, connecting arm; 206, sand box connecting belt; 207, first spring; 208, first card; 209, ratchet; 210, second card; 211, second spring; 212, connecting rod; 213, second steel belt; 3, sand box clamping mechanism; 301, first motor; 302, frame; 303, second motor; 304, second threaded rod; 305, third slide plate; 306, fourth slide plate; 307, third threaded rod; 308, first Second pressure plate; 4. sand box driving mechanism; 401. driving motor; 402. transmission gear; 403. driven gear; 404. rotating shaft; 405. driving block; 406. driving wheel; 5. lifting mechanism; 501. lifting motor; 502. first threaded rod; 503. lifting block; 504. sliding rod; 6. rotating motor; 7. supporting block; 8. frame; 801. first sand box body; 802. fourth threaded rod; 803. adjusting rod; 804. first pressure plate; 805. first slide plate; 806. second slide plate; 9. second sand box body; 10. sand box supporting arm; 11. sand box bottom plate. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1:

[0043] In order to realize that the sand box can be quickly unpacked and sand dropped, as an embodiment of the present invention, Figures 1 to 8 As shown, a sand box for metal casting and a casting process include a sand box support column 1, a connecting mechanism 2, a sand box clamping mechanism 3, a lifting mechanism 5, a frame 8 and a sand box bottom plate 11, wherein two sand box support columns 1 are provided, and a lifting mechanism 5 is installed on one side of the two sand box support columns 1, and a rotating motor 6 is installed on one side of the lifting mechanism 5, and a supporting block 7 is externally sleeved on the output end of the rotating motor 6, and a sand box clamping mechanism 3 is fixed to one side of the support block 7 by screws, a second sand box body 9 is provided inside the sand box clamping mechanism 3, and connecting mechanisms 2 are installed on the outside of the sand box clamping mechanism 3 on both sides, and the sand box clamping mechanism 3 is connected to the frame 8 through the connecting mechanism 2, The bottom of the sand box support column 1 is fixed with a sand box bottom plate 11 by bolts, and both ends of the sand box bottom plate 11 are connected to both sides of the sand box support column 1 through the sand box support arms 10. Sand box driving mechanisms 4 are installed at both ends of the sand box bottom plate 11. The sand box clamping mechanism 3 includes a first motor 301 installed on one side of the support block 7 by screws, and both sides of the first motor 301 are fixedly connected to the frame 302 by screws. Two frames 302 are provided, and second pressing plates 308 are provided inside the two frames 302. Both ends of the second pressing plate 308 are in sliding contact with the inner wall of the second sand box body 9, and the second pressing plate 308 is threadedly connected to one end of the third threaded rod 307. The other end of the third threaded rod 307 is sleeved on the outside of the output end of the first motor 301, and the surface of one side of the second pressure plate 308 is in sliding contact with the end of the third slide plate 305. The third slide plate 305 is distributed at both ends of the fourth slide plate 306. The inside of the fourth slide plate 306 is threadedly connected with one end of the second threaded rod 304, and the other end of the second threaded rod 304 is connected to the output end of the second motor 303. The second motor 303 is installed on the outside of the frame 302; specifically, a convex groove is provided on one side surface of the third slide plate 305, and one side of the third slide plate 305 is slidably connected with a groove on the surface of one side of the fourth slide plate 306, and the groove on the surface of one side of the fourth slide plate 306 The cross-section is T-shaped, and the frame 8 includes a first sand box body 801, which is threadedly connected to a fourth threaded rod 802. Four fourth threaded rods 802 are provided, and an adjusting rod 803 is externally mounted on one end of the fourth threaded rod 802. The other end of the fourth threaded rod 802 is rotatably connected to a first pressure plate 804 and a second pressure plate 308 respectively. Two first pressure plates 804 are provided, and the surfaces of the two first pressure plates 804 are in sliding contact with one end of a first slide plate 805. The other end of the first slide plate 805 is slidably connected to the surface of the first pressure plate 804. A groove is provided on the surface of the first pressure plate 804, and the cross-section of the groove is T-shaped.

[0044] During use, when the first sand box body 801 and the second sand box body 9 move to the specified position and fall to the ground, the adjusting rod 803 is rotated, so that the second threaded rod 304 can be driven to rotate through the adjusting rod 803, so that the second threaded rod 304 can drive the second slide 806, the first slide 805, and the first pressure plate 804 to move outward and separate from the molding sand model, and at the same time, the third threaded rod 307 is driven to rotate by the first motor 301. When the third threaded rod 307 rotates, the second pressure plate 308 can be kept away from the molding sand model inside the second sand box body 9, and the second threaded rod 304 is driven to rotate under the action of the second motor 303, and the second threaded rod 304 can be driven to rotate, and the fourth slide 306 and the third slide 305 can be driven away from the molding sand model inside the second sand box body 9, so that the molding sand model inside the first sand box body 801 and the second sand box body 9 can be detached, so that the box can be unpacked and the sand can be dropped without the aid of external tools, and there is no need to transfer the sand box to other workshops.

[0045] Embodiment 2:

[0046] In order to enable the flask to achieve a flip angle during the rise of the first flask body 801 and the second flask body 9, for example, Figure 1 to Figure 2 As shown, the present invention also includes that the lifting mechanism 5 includes a lifting motor 501 installed on one side of the sand box support column 1 by screws, and a first threaded rod 502 is mounted on the outside of the bottom output end of the lifting motor 501, and the bottom of the first threaded rod 502 is rotatably connected to the bottom side of the sand box support column 1, and the outside of the first threaded rod 502 is threadedly connected to the lifting block 503, and the interior of the two ends of the lifting block 503 is in sliding contact with the outer wall of the sliding rod 504, and the bottom and top ends of the sliding rod 504 are respectively welded to one side of the sand box support column 1, and one side of the lifting block 503 is connected to the rotating motor 6 by screws.

[0047] When in use, the lifting motor 501 drives the first threaded rod 502 to rotate. While the first threaded rod 502 rotates, it can drive the lifting block 503 to slide downward through the sliding rod 504, so that the lifting block 503 can drive the second sand box body 9 to move downward, so that the second sand box body 9 is placed on the lower half mold plate, and then the molding sand is filled in, compacted and scraped flat to complete the lower mold modeling, so that the second sand box body 9 can be placed on the lower half mold plate without the aid of external equipment, and the second sand box body 9 can be moved up and down at the same time, so that the bottom of the second sand box body 9 can reserve a flipping space, thereby realizing flipping.

[0048] Embodiment 3:

[0049] In order to quickly and tightly connect the first flask body 801 and the second flask body 9, for example, Figures 1 to 4As shown, the connecting mechanism 2 includes a connecting rod 212 rotatably connected to one side of the frame 302, the connecting rod 212 is fixedly connected to one end of the second steel belt 213 on the outside, the other end of the second steel belt 213 is inserted into the inside of the winding shaft 204 and fixed, and the two ends of the winding shaft 204 are respectively rotatably connected to the rotating arm 203 and the bottom of the connecting arm 205, one end of the top of the connecting arm 205 is connected to the limiting rod 201 through the sand box connecting belt 206, the limiting rod 201 is engaged with the card slot 202, and the card slot 202 is welded to both sides of the outer wall of the first sand box body 8;

[0050] When in use, the limiting rod 201 is engaged with the slot 202 on one side of the first sand box body 801, and then the rotating arm 203 is pulled up and down, and the second card 210 is driven to rotate by the rotating arm 203. The second card 210 engages with the ratchet 209 to drive the ratchet 209 to rotate. The ratchet 209 can be fixed in position by the first card 208 after each rotation. By continuously pulling the rotating arm 203, the ratchet 209 can continuously drive the winding shaft 204 to rotate, and then the second steel belt 213 is tightened, so that the first sand box body 801 and the second sand box body 9 can be quickly and tightly connected.

[0051] Embodiment 4:

[0052] In order to facilitate the separation of the first flask body 801 and the second flask body 9 to take out the upper half plate and the lower half plate, for example, Figures 1 to 4 As shown, ratchets 209 are mounted on both ends of the winding shaft 204, and the ratchet wheels 209 are respectively engaged with the bottom ends of the first card 208 and the second card 210, and a second spring 211 is provided at the top end of the second card 210, and the top end of the second spring 211 is embedded in the rotating arm 203, and the two sides of the second card 210 are slidably matched with the grooves on the surface of the rotating arm 203, and the two sides of the first card 208 are slidably matched with the grooves on the surface of the connecting arm 205, and the top end of the first card 208 is connected to the first spring 207, and the top end of the first spring 207 is embedded in the connecting arm 205.

[0053] When in use, by sliding the first card 208 and the second card 210, the first card 208 and the second card 210 can be disengaged from the ratchet 209, so that the second steel belt 213 can be loosened, and then the limit rod 201 can be taken out from the inside of the slot 202, and the first sand box body 801 and the second sand box body 9 can be easily separated, so that the upper half-mold plate and the lower half-mold plate used for casting cavity molding between the first sand box body 801 and the second sand box body 9 can be taken out.

[0054] Embodiment 5:

[0055] In order to enable the first sand box body 801 and the second sand box body 9 to move to the designated position for grouting, for example, Figures 2 to 3 As shown, driving motors 401 are embedded inside the two ends of the sand box bottom plate 11, and a transmission gear 402 is mounted on the outside of the output end of the driving motor 401. The transmission gear 402 is meshed and connected with a driven gear 403. The top of the driven gear 403 is welded to the bottom of the rotating shaft 404. The rotating shaft 404 is rotatably connected to the end of the sand box bottom plate 11. A driving block 405 is installed at the bottom of the driven gear 403 by screws. A motor is arranged inside the driving block 405. The motor inside the driving block 405 is used to drive a driving wheel 406 on one side to rotate.

[0056] When in use, the driving motor 401 is controlled by an external controller to drive the transmission gear 402 to rotate. When the transmission gear 402 rotates, it can also drive the driven gear 403 to rotate. The driven gear 403 can drive the driving block 405 to adjust the direction. The motor inside the driving block 405 can drive the driving wheel 406 to rotate, so that the driving wheel 406 can drive the first sand box body 801 and the second sand box body 9 to move, so that the first sand box body 801 and the second sand box body 9 can be easily moved to the designated position for grouting.

[0057] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sand box for metal casting, characterized in that: The invention comprises a sand box support column (1), a connecting mechanism (2), a sand box pressing mechanism (3), a lifting mechanism (5), a frame (8) and a sand box bottom plate (11), wherein two sand box support columns (1) are provided, a lifting mechanism (5) is installed on one side of the two sand box support columns (1), a rotating motor (6) is installed on one side of the lifting mechanism (5), a supporting block (7) is sleeved on the outside of the output end of the rotating motor (6), and a sand box pressing mechanism (3) is fixed on one side of the supporting block (7) by screws, A second sand box body (9) is arranged inside the sand box clamping mechanism (3), and connecting mechanisms (2) are installed on the outside of both sides of the sand box clamping mechanism (3); the sand box clamping mechanism (3) is connected to the frame (8) via the connecting mechanism (2); a sand box bottom plate (11) is fixed to the bottom of the sand box support column (1) via bolts; both ends of the sand box bottom plate (11) are connected to both sides of the sand box support column (1) via sand box support arms (10); and sand box driving mechanisms (4) are installed at both ends of the sand box bottom plate (11); The sand box clamping mechanism (3) comprises a first motor (301) mounted on one side of the support block (7) by screws, the first motor (301) is fixedly connected to the frame (302) on both sides by screws, the frame (302) is provided with two, the two frames (302) are provided with second pressing plates (308) inside, the two ends of the second pressing plates (308) are in sliding contact with the inner wall of the second sand box body (9), and the inside of the second pressing plate (308) is threadedly connected to one end of the third threaded rod (307), and the other end of the third threaded rod (307) is sleeved on the outside of the output end of the first motor (301); A surface on one side of the second pressing plate (308) is in sliding contact with an end of the third sliding plate (305); the third sliding plate (305) is distributed at both ends of the fourth sliding plate (306); the interior of the fourth sliding plate (306) is threadedly connected to one end of the second threaded rod (304); the other end of the second threaded rod (304) is connected to an output end of a second motor (303); and the second motor (303) is installed outside the frame (302); A convex sliding groove is provided on one side surface of the third sliding plate (305), and one side of the third sliding plate (305) is slidably connected to a groove on one side surface of the fourth sliding plate (306), and the cross-section of the groove on one side surface of the fourth sliding plate (306) is in a T-shaped structure; The connecting mechanism (2) comprises a connecting rod (212) rotatably connected to one side of the frame (302); the connecting rod (212) is fixedly connected to one end of a second steel belt (213) on the outside; the other end of the second steel belt (213) is inserted into and fixed inside a reel (204); and the two ends of the reel (204) are rotatably connected to the bottom of a rotating arm (203) and a connecting arm (205) respectively; the top end of the connecting arm (205) is connected to a limiting rod (201) via a sand box connecting belt (206); the limiting rod (201) is engaged with a clamping groove (202), and the clamping groove (202) is welded to both sides of the outer wall of the first sand box body (801); Ratchets (209) are mounted on both ends of the winding shaft (204), and the ratchet wheels (209) are respectively engaged with the bottom ends of the first card (208) and the second card (210). A second spring (211) is arranged at the top end of the second card (210), and the top end of the second spring (211) is embedded in the rotating arm (203), and the two sides of the second card (210) are slidably matched with the grooves on the surface of the rotating arm (203), and the two sides of the first card (208) are slidably matched with the grooves on the surface of the connecting arm (205), and the top end of the first card (208) is connected to the first spring (207), and the top end of the first spring (207) is embedded in the connecting arm (205).

2. A metal casting sand box according to claim 1, characterized in that: The lifting mechanism (5) comprises a lifting motor (501) mounted on one side of a sand box support column (1) by means of screws, a first threaded rod (502) is sleeved on the outside of the bottom output end of the lifting motor (501), the bottom of the first threaded rod (502) is rotatably connected to one side of the bottom of the sand box support column (1), the outside of the first threaded rod (502) is threadedly connected to a lifting block (503), the inside of both ends of the lifting block (503) is in sliding contact with the outer wall of a sliding rod (504), the bottom and top ends of the sliding rod (504) are respectively welded to one side of the sand box support column (1), and one side of the lifting block (503) is connected to a rotating motor (6) by means of screws.

3. A metal casting sand box according to claim 1, characterized in that: The frame (8) comprises a first sand box body (801), the first sand box body (801) is threadedly connected to a fourth threaded rod (802), four fourth threaded rods (802) are provided, one end of the fourth threaded rod (802) is externally sleeved with an adjustment rod (803), and the other end of the fourth threaded rod (802) is rotatably connected to a first pressing plate (804) and a second pressing plate (308) respectively, two first pressing plates (804) are provided, the surfaces of the two first pressing plates (804) are in sliding contact with one end of a first slide plate (805), the other end of the first slide plate (805) is slidably connected to the surface of the first pressing plate (804), and a groove is provided on the surface of the first pressing plate (804), and the cross section of the groove is in a T-shaped structure.

4. A metal casting sand box according to claim 1, characterized in that: The top edges of the first sand box body (801) and the second sand box body (9) are both provided with strip-shaped raised structures, and the bottoms of the first sand box body (801) and the second sand box body (9) are both provided with grooves that match the top strip-shaped raised structures.

5. The metal casting sand box according to claim 1, characterized in that: Drive motors (401) are embedded inside the two ends of the sand box bottom plate (11), and a transmission gear (402) is mounted outside the output end of the drive motor (401). The transmission gear (402) is meshed and connected with a driven gear (403). The top of the driven gear (403) is welded to the bottom of a rotating shaft (404), and the rotating shaft (404) is rotatably connected to the end of the sand box bottom plate (11). A drive block (405) is installed at the bottom of the driven gear (403) by screws, and a motor is arranged inside the drive block (405). The motor inside the drive block (405) is used to drive a driving wheel (406) on one side to rotate.

6. A metal casting process using the metal casting sand box according to any one of claims 1 to 5, characterized in that: The process steps are as follows: S1: placing the lower half-mold plate with the product outline on the ground below the second sand box body (9), and then driving the first threaded rod (502) to rotate through the lifting motor (501) of the lifting mechanism (5). The first threaded rod (502) can drive the lifting block (503) to slide downward through the sliding rod (504) while rotating, so that the lifting block (503) can drive the second sand box body (9) to move downward, so that the second sand box body (9) is placed on the lower half-mold plate, and then filling the molding sand, compacting and flattening, to complete the lower mold molding; S2: The second sand box body (9) is driven to move upward by the lifting mechanism (5), and then the support block (7) is driven to rotate by the rotating motor (6). The support block (7) can drive the second sand box body (9) to flip while rotating. The upper half mold plate with the product outline is placed on the top of the second sand box body (9), and the parting agent is sprinkled. The first sand box body (801) is placed on the top of the upper half mold plate so that the groove at the bottom of the first sand box body (801) can be embedded with the top of the second sand box body (9); S3: The limiting rod (201) is engaged with the slot (202) on one side of the first sand box body (801), thereby pulling the rotating arm (203) up and down, and the second card (210) is driven to rotate by the rotating arm (203). The second card (210) is engaged with the ratchet (209) to drive the ratchet (209) to rotate. After each rotation, the ratchet (209) can be fixed in position by the first card (208). By continuously pulling the rotating arm (203), the ratchet (209) can continuously drive the winding shaft (204) to rotate, thereby tightening the second steel belt (213), so that the first sand box body (801) and the second sand box body (9) can be tightly connected, and the molding sand is filled in the first sand box body (801) to be compacted and scraped flat; S4: The support block (7) is driven to rotate by the rotating motor (6), so that the support block (7) can simultaneously drive the first sand box body (801) and the second sand box body (9) to flip. After the first sand box body (801) and the second sand box body (9) are flipped 180 degrees, the first sand box body (801) and the second sand box body (9) are driven to move downward by the lifting mechanism (5), so that the first sand box body (801) can be placed on the ground, and the first card (208) and the second card (21 0), so that the first card (208) and the second card (210) can be disengaged from the ratchet (209), so that the second steel belt (213) can be loosened, and then the limit rod (201) can be taken out from the inside of the card slot (202), and the first sand box body (801) and the second sand box body (9) can be separated and connected, and the second sand box body (9) is driven to move upward by the lifting mechanism (5), so that the first sand box body (801) and the second sand box body (9) are separated, and then the upper half-mold plate and the lower half-mold plate can be taken out; S5: After the upper half-mold plate and the lower half-mold plate inside the first sand box body (801) and the second sand box body (9) are taken out, the first sand box body (801) and the second sand box body (9) are closed again through the lifting mechanism (5) and reconnected through the connecting structure, so that the first sand box body (801) and the second sand box body (9) are lifted up by the lifting mechanism (5), and the transmission gear (402) is driven to rotate by the driving motor (401), and the transmission gear (402) is rotated. At the same time, the driven gear (403) can be driven to rotate, and the driven gear (403) can drive the driving block (405) to adjust the direction. The motor inside the driving block (405) can drive the driving wheel (406) to rotate, so that the driving wheel (406) can drive the first sand box body (801) and the second sand box body (9) to move, so that the first sand box body (801) and the second sand box body (9) can be moved to a specified position, so that grouting can be performed at the specified grouting point to complete the casting.

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