Automatic sand mold casting device

Abstract

The invention belongs to the technical field of sand casting, and particularly relates to an automatic sand casting device which comprises a main frame, a feeding mechanism, a vibrating mechanism, a tamping mechanism and a fixing mechanism, the feeding mechanism is arranged on the side wall of the main frame, the vibrating mechanism is arranged at the bottom end of the main frame, the tamping mechanism is arranged at the top end of the main frame, and the fixing mechanism is arranged at the top end of the vibrating mechanism. According to the sand shakeout device, the vibration mechanism is arranged, sand raw materials are vibrated up and down, the technical effect of uniformly vibrating the sand raw materials is achieved, the technical problem that the sand raw materials are not uniformly distributed is effectively solved, the reciprocating mechanism is arranged, the sand raw materials are laid into the mold through reciprocating motion of the sliding frame, and the technical effect of uniform sand shakeout is achieved. And by arranging the trowelling mechanism, the technical effects of trowelling and recovering the sand raw materials are achieved by utilizing the back-and-forth movement of the trowelling plate on the upper surface of the mold, and the technical problems that in the prior art, manual trowelling is needed, and the sand raw materials are wasted are effectively solved.

Description

Technical Field

[0001] The invention belongs to the technical field of sand casting, and in particular relates to an automatic sand casting device. Background Art

[0002] Casting is a metal heat processing technology that humans mastered relatively early. It mainly includes two categories: sand casting and special casting. However, the manufacture of sand casting molds is very difficult. Mold making is time-consuming, and sand and stone compaction requires a lot of manpower and time. This work is mainly repetitive, mechanical and tedious work, which can be completed by machines.

[0003] Automatic sand casting device is a casting equipment used to make sand molds. Its main functions are: filling sand, filling loose sand into the sand box; compacting sand, compacting the loose sand in the sand box through different methods such as vibration, compaction, shock pressure, and shot pressure, so that the sand mold has the necessary strength during transportation and pouring; the most common mold is made of sand, which has good fluidity, is easy to shape, and is low in price. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting, so it is widely used in casting.

[0004] In the prior art, when filling sand, the sand distribution is often uneven, resulting in uneven sand compaction during the compaction process, which in turn affects the quality of the casting. At the same time, some equipment requires manual smoothing and cannot recycle excess molding sand.

[0005] Currently, there is a lack of a sand casting device that can evenly distribute and screen the molding sand, and simultaneously smooth and recycle the excess molding sand. Summary of the invention

[0006] In order to solve the above-mentioned existing problems, the present invention provides an automatic sand casting device, which is provided with a vibration mechanism. The vibrating fixed platform can make the mold and the sand raw material therein vibrate up and down, thereby achieving the technical effect of vibrating the sand raw material evenly, and effectively solving the technical problem of uneven distribution of sand raw materials in the prior art; by providing a reciprocating mechanism, the sand raw material is spread into the mold through the sand laying pipe by the reciprocating motion of the sliding frame, thereby achieving the technical effect of uniform sand falling, effectively solving the technical problem of uneven sand falling in the prior art, and improving the quality of castings; the present invention is provided with a sand screening mechanism, and the sand raw material to be dropped into the mold is screened by the reciprocating motion of the sand screen, so as to reduce the agglomeration of the sand raw material, thereby achieving the technical effect of uniform distribution of sand raw material particles, and effectively solving the technical problem of uneven distribution of sand raw materials in the prior art; the present invention utilizes the adaptive principle, and by providing a smoothing mechanism, the smoothing plate is moved back and forth on the upper surface of the mold, and the die pressing hydraulic press is moved up and down, thereby achieving the technical effect of smoothing and recycling sand raw materials at the same time, and effectively solving the technical problems of manual smoothing and waste of sand raw materials in the prior art.

[0007] The technical scheme adopted by the present invention is as follows: This scheme provides an automatic sand casting device, including a main frame, a feeding mechanism, a vibration mechanism, a tamping mechanism and a fixing mechanism, the feeding mechanism is arranged on the side wall of the main frame, the vibration mechanism is arranged on the bottom end of the main frame, the tamping mechanism is arranged on the top end of the main frame, the fixing mechanism is arranged on the top end of the vibration mechanism, the feeding mechanism includes a reciprocating mechanism and a sand screening mechanism, the reciprocating mechanism is arranged on the side wall of the top end of the main frame, the sand screening mechanism is arranged on the side wall of the reciprocating mechanism, the tamping mechanism includes a die pressing mechanism and a smoothing mechanism, the die pressing mechanism is arranged on the top end of the main frame, and the smoothing mechanism is arranged on the side wall of the die pressing mechanism.

[0008] Furthermore, the reciprocating mechanism includes a slide rail, a first servo motor, a first threaded rod, a sliding frame, a feed bin, a feed pipe, a second servo motor and a propeller. The slide rail is fixedly arranged on the top side wall of the main frame, the first servo motor is fixedly arranged on the side wall of the main frame, both ends of the sliding frame are slidably arranged on the side walls of the slide rail, the first threaded rod is coaxially fixedly arranged on the output end of the first servo motor, the side wall of the sliding frame is sleeved on the outer wall of the first threaded rod, the feed bin is fixedly arranged on the top end of the sliding frame, the feed pipe is fixedly arranged on the bottom side wall of the feed bin, the second servo motor is fixedly arranged on the side wall of the sliding frame, the output end of the second servo motor passes through the side wall of the feed bin, the propeller is coaxially fixedly arranged on the output end of the second servo motor, and the other end of the propeller rotates on the side wall of the feed pipe.

[0009] Furthermore, the sand screening mechanism includes a sand screening frame, a sand screening trough, a third servo motor, a rotating rod, a transmission rod, a sand screen and a sand laying pipe. The sand screening frame is fixedly arranged on the side wall of the sliding frame, the sand screening trough is opened on the side walls at both ends of the sand screening frame, the sand screen is slidably arranged on the side walls of the sand screening trough, the third servo motor is fixedly arranged on the side wall of the sand screening frame, one end of the rotating rod is rotatably arranged on the output end of the third servo motor, one end of the transmission rod is rotatably arranged on the side wall of one end of the rotating rod, the other end of the rotating rod is rotatably arranged on the side wall of the sand screen, and the sand laying pipe is fixedly arranged on the side wall of the sand screening frame.

[0010] Furthermore, the vibration mechanism includes a support platform, a support groove, a fixed platform, a vibration sub-rod, a fourth servo motor and a vibration deflector. The support platform is fixedly arranged on the side wall of the bottom end of the main frame, the support groove is opened at the top of the support platform, the fixed platform is slidably arranged on the side wall of the support groove, the vibration sub-rod array is arranged on the side walls at both ends of the fixed platform, the fourth servo motor array is arranged on the side wall of the fixed platform, the vibration deflector is coaxially fixed on the output end of the fourth servo motor, the vibration sub-rod is located above the vibration deflector, and the side wall of the vibration deflector is in contact with the vibration sub-rod.

[0011] Furthermore, the fixing mechanism includes a fixing groove, a fifth servo motor, a reverse threaded rod, a clamping column, a clamping groove, an L-shaped telescopic rod, an auxiliary rod, a limit block, a transverse hydraulic device, a pressure sensor and a longitudinal hydraulic device. The fixing grooves are arranged in pairs at the top of the fixing platform, the fifth servo motor is fixedly arranged on the side wall at one end of the fixing groove, one end of the reverse threaded rod is coaxially fixedly arranged on the output end of the fifth servo motor, the other end of the reverse threaded rod is rotated on the side wall at the other end of the fixing groove, the clamping column is slidably arranged on the side wall of the fixing groove, and the auxiliary rod slides The clamping column side wall is sleeved on the outer wall of one end of the reverse threaded rod, the auxiliary rod side wall is sleeved on the side wall of the other end of the reverse threaded rod, the clamping groove is opened at the top of the clamping column, the L-shaped telescopic rod is slidably arranged on the side wall of the clamping groove, the longitudinal hydraulic valve is fixed at the top of the clamping groove, the output end of the longitudinal hydraulic valve is fixedly connected to the bottom end of the L-shaped telescopic rod, the pressure sensor is fixed at the bottom end of the L-shaped telescopic rod, the transverse hydraulic valve is fixed on the side wall of the clamping column, and the limit block is fixed at the output end of the transverse hydraulic valve.

[0012] Furthermore, the die pressing mechanism includes a die pressing hydraulic press, a pressure plate, an anti-overflow platform, a sixth servo motor, a second threaded rod and a recovery box, the die pressing hydraulic press is fixedly arranged at the bottom end of the main frame, the pressure plate is fixedly arranged at the output end of the die pressing hydraulic press, the anti-overflow platform is slidably arranged on the side wall of the main frame, the sixth servo motor is fixedly arranged at the bottom end of the main frame, the second threaded rod is coaxially fixedly arranged at the output end of the sixth servo motor, the top end of the anti-overflow platform is sleeved on the outer wall of the second threaded rod, and the recovery box is fixedly arranged on the side wall of the main frame.

[0013] Furthermore, the smoothing mechanism includes a smoothing groove, a smoothing rod, a smoothing plate, a tension rope, a reset spring and a counterweight block. The smoothing groove is opened on the side walls at both ends of the anti-overflow platform, the two ends of the smoothing rod are slidably arranged on the side walls of the smoothing groove, the smoothing plate is rotatably arranged on the side walls of the smoothing rod, and the counterweight block is fixedly arranged on the side walls of the smoothing plate. One end of the tension rope is fixedly arranged on the side wall of the pressure plate, and the other end of the tension rope is fixedly arranged on the side wall of one end of the smoothing rod. One end of the reset spring is fixedly arranged on the side wall of the smoothing groove, and the other end of the reset spring is fixedly arranged on the side wall of one end of the smoothing rod. The side wall of one end of the anti-overflow platform and the top of the main frame are respectively fixedly provided with pulleys, and the tension rope passes through the pulley at one end of the anti-overflow platform close to the main frame and the pulley at the top of the main frame.

[0014] Furthermore, an electrical control panel is fixedly provided on the side wall of the main frame, and the electrical control panel is electrically connected to the first servo motor, the second servo motor, the third servo motor, the fourth servo motor, the fifth servo motor, the sixth servo motor, the die hydraulic press, the transverse hydraulic press, the pressure sensor and the longitudinal hydraulic press through wires.

[0015] Further, the first threaded rod is connected to the sliding frame by threads, the reverse threaded rod is connected to the clamping column by threads, the reverse threaded rod is connected to the auxiliary rod by threads, and the second threaded rod is connected to the anti-overflow platform by threads.

[0016] Furthermore, the threads at both ends of the reverse threaded rod rotate in opposite directions, and the inner cavity at the bottom end of the sand-laying pipe is in an elongated strip shape.

[0017] Furthermore, the model of the electrical control panel is SYC89C52RC-401.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention is provided with a vibration mechanism, which can vibrate the mold together with the sand material therein up and down by vibrating the fixed platform, thereby achieving the technical effect of vibrating the sand material evenly, and effectively solving the technical problem of uneven distribution of sand material in the prior art; (2) The present invention is provided with a reciprocating mechanism, and utilizes the reciprocating motion of the sliding frame to spread the sand raw material into the mold through the sand laying pipeline, thereby achieving the technical effect of uniform sand falling, effectively solving the technical problem of uneven sand falling in the prior art, and improving the quality of the casting; (3) The present invention is provided with a sand screening mechanism, and utilizes the reciprocating motion of the sand screen to screen the sand raw materials that will fall into the mold, thereby reducing the agglomeration of the sand raw materials, achieving the technical effect of uniform distribution of sand raw material particles, and effectively solving the technical problem of uneven distribution of sand raw materials and agglomeration in the prior art; (4) The present invention is easy to operate and uses mechanical motion throughout the process, which reduces the workload of operators, efficiently and automatically completes the manufacture of sand molds, and improves work efficiency; (5) The present invention is provided with a smoothing mechanism, uses a smoothing plate to move back and forth on the upper surface of the mold, and uses a die pressing hydraulic press to move up and down, thereby achieving the technical effects of smoothing and recycling sand raw materials at the same time, effectively solving the technical problems of manual smoothing and waste of sand raw materials in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A front view of an automatic sand casting device proposed by the present invention; Figure 2 It is a first stereoscopic schematic diagram of an automatic sand casting device proposed by the present invention; Figure 3 This is a right view of an automatic sand casting device proposed by the present invention; Figure 4 A top view of an automatic sand casting device proposed by the present invention; Figure 5 A second stereoscopic schematic diagram of an automatic sand casting device proposed by the present invention; Figure 6 A partial cross-sectional view of an automatic sand casting device proposed by the present invention; Figure 7 for Figure 6 Middle AA section cutaway view; Figure 8 for Figure 7 Enlarged view of middle part B; Fig. 9 A partial three-dimensional cross-sectional view of an automatic sand casting device proposed by the present invention; Fig.10 for Fig. 9 Enlarged view of middle C; Fig.11 A three-dimensional cross-sectional view of the leveling mechanism proposed by the present invention; Fig.12 for Fig.11 Enlarged view of part D in the middle.

[0020] Among them, 1. main frame, 2. feeding mechanism, 3. vibration mechanism, 4. tamping mechanism, 5. fixing mechanism, 210, reciprocating mechanism, 220, sand screening mechanism, 410, die pressing mechanism, 420, smoothing mechanism, 211, slide rail, 212, first servo motor, 213, first threaded rod, 214, sliding frame, 215, feeding bin, 216, feeding pipe, 217, second servo motor, 218, propeller, 221, sand screening frame, 222, sand screening trough, 223, third servo motor, 224, rotating rod, 225, transmission rod, 226, sand screen, 227, sand laying pipeline, 301, support table, 302, support trough, 303, fixed table, 304, vibration auxiliary rod, 305 , fourth servo motor, 306, vibration deflector, 501, fixing groove, 502, fifth servo motor, 503, reverse threaded rod, 504, clamping column, 505, clamping groove, 506, L-shaped telescopic rod, 507, auxiliary rod, 508, limit block, 509, horizontal hydraulic press, 510, pressure sensor, 511, longitudinal hydraulic press, 411, die hydraulic press, 412, pressure plate, 413, anti-overflow table, 414, sixth servo motor, 415, second threaded rod, 416, recovery box, 421, smoothing groove, 422, smoothing rod, 423, smoothing plate, 424, tension rope, 425, reset spring, 426, counterweight, 427, pulley, 101, electrical control panel.

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention. DETAILED DESCRIPTION

[0022] The present invention is further described in detail with reference to the accompanying drawings.

[0023] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12 As shown, the present scheme provides an automatic sand casting device, including a main frame 1, a feeding mechanism 2, a vibrating mechanism 3, a compacting mechanism 4 and a fixing mechanism 5, the feeding mechanism 2 is arranged on the side wall of the main frame 1, the vibrating mechanism 3 is arranged on the bottom end of the main frame 1, the compacting mechanism 4 is arranged on the top end of the main frame 1, the fixing mechanism 5 is arranged on the top end of the vibrating mechanism 3, the feeding mechanism 2 includes a reciprocating mechanism 210 and a sand screening mechanism 220, the reciprocating mechanism 210 is arranged on the side wall of the top end of the main frame 1, the sand screening mechanism 220 is arranged on the side wall of the reciprocating mechanism 210, the compacting mechanism 4 includes a die pressing mechanism 410 and a smoothing mechanism 420, the die pressing mechanism 410 is arranged on the top end of the main frame 1, and the smoothing mechanism 420 is arranged on the side wall of the die pressing mechanism 410.

[0024] The reciprocating mechanism 210 includes a slide rail 211, a first servo motor 212, a first threaded rod 213, a sliding frame 214, a feed bin 215, a feed pipe 216, a second servo motor 217 and a propeller 218. The slide rail 211 is fixed to the top side wall of the main frame 1, the first servo motor 212 is fixed to the side wall of the main frame 1, both ends of the sliding frame 214 are slidably arranged on the side wall of the slide rail 211, and the first threaded rod 213 is coaxially fixed to the output of the first servo motor 212. The side wall of the sliding frame 214 is sleeved on the outer wall of the first threaded rod 213, the feed bin 215 is fixed on the top of the sliding frame 214, the feed pipe 216 is fixed on the side wall of the bottom end of the feed bin 215, the second servo motor 217 is fixed on the side wall of the sliding frame 214, the output end of the second servo motor 217 passes through the side wall of the feed bin 215, the propeller 218 is coaxially fixed on the output end of the second servo motor 217, and the other end of the propeller 218 rotates on the side wall of the feed pipe 216.

[0025] The sand screening mechanism 220 includes a sand screening frame 221, a sand screening trough 222, a third servo motor 223, a rotating rod 224, a transmission rod 225, a sand screen 226 and a sand laying pipe 227. The sand screening frame 221 is fixedly arranged on the side wall of the sliding frame 214, the sand screening trough 222 is opened on the side walls at both ends of the sand screening frame 221, the sand screen 226 is slidably arranged on the side walls of the sand screening trough 222, the third servo motor 223 is fixedly arranged on the side wall of the sand screening frame 221, one end of the rotating rod 224 is rotatably arranged on the output end of the third servo motor 223, one end of the transmission rod 225 is rotatably arranged on the side wall of one end of the rotating rod 224, the other end of the rotating rod 224 is rotatably arranged on the side wall of the sand screen 226, and the sand laying pipe 227 is fixedly arranged on the side wall of the sand screening frame 221.

[0026] The vibration mechanism 3 includes a support platform 301, a support groove 302, a fixed platform 303, a vibration sub-rod 304, a fourth servo motor 305 and a vibration deflector 306. The support platform 301 is fixedly arranged on the side wall of the bottom end of the main frame 1, the support groove 302 is opened at the top of the support platform 301, the fixed platform 303 is slidably arranged on the side wall of the support groove 302, the vibration sub-rod 304 is arranged in an array on the side walls at both ends of the fixed platform 303, the fourth servo motor 305 is arranged in an array on the side wall of the fixed platform 303, the vibration deflector 306 is coaxially fixed on the output end of the fourth servo motor 305, the vibration sub-rod 304 is located above the vibration deflector 306, and the side wall of the vibration deflector 306 is in contact with the vibration sub-rod 304.

[0027] The fixing mechanism 5 includes a fixing groove 501, a fifth servo motor 502, a reverse threaded rod 503, a clamping column 504, a clamping groove 505, an L-shaped telescopic rod 506, an auxiliary rod 507, a limit block 508, a transverse hydraulic device 509, a pressure sensor 510 and a longitudinal hydraulic device 511. The fixing grooves 501 are arranged in pairs at the top of the fixing table 303. The fifth servo motor 502 is fixed to the side wall of one end of the fixing groove 501. One end of the reverse threaded rod 503 is coaxially fixed to the output end of the fifth servo motor 502. The other end of the reverse threaded rod 503 rotates on the side wall of the other end of the fixing groove 501. The clamping column 504 is slidably arranged on the side wall of the fixing groove 501. The auxiliary rod 507 is slidably arranged on the side wall of the fixed groove 501, the side wall of the clamping column 504 is sleeved on the outer wall of one end of the reverse threaded rod 503, the side wall of the auxiliary rod 507 is sleeved on the side wall of the other end of the reverse threaded rod 503, the clamping groove 505 is opened at the top of the clamping column 504, the L-shaped telescopic rod 506 is slidably arranged on the side wall of the clamping groove 505, the longitudinal hydraulic press 511 is fixedly arranged at the top of the clamping groove 505, the output end of the longitudinal hydraulic press 511 is fixedly connected to the bottom end of the L-shaped telescopic rod 506, the pressure sensor 510 is fixedly arranged at the bottom end of the L-shaped telescopic rod 506, the transverse hydraulic press 509 is fixedly arranged on the side wall of the clamping column 504, and the limit block 508 is fixedly arranged at the output end of the transverse hydraulic press 509.

[0028] The die pressing mechanism 410 includes a die pressing hydraulic press 411, a pressing plate 412, an anti-overflow platform 413, a sixth servo motor 414, a second threaded rod 415 and a recovery box 416. The die pressing hydraulic press 411 is fixed at the bottom end of the main frame 1, the pressing plate 412 is fixed at the output end of the die pressing hydraulic press 411, the anti-overflow platform 413 is slidably arranged on the side wall of the main frame 1, the sixth servo motor 414 is fixed at the bottom end of the main frame 1, the second threaded rod 415 is coaxially fixed at the output end of the sixth servo motor 414, the top end of the anti-overflow platform 413 is sleeved on the outer wall of the second threaded rod 415, and the recovery box 416 is fixed on the side wall of the main frame 1.

[0029] The smoothing mechanism 420 includes a smoothing groove 421, a smoothing rod 422, a smoothing plate 423, a tension rope 424, a return spring 425 and a counterweight 426. The smoothing groove 421 is opened on the side walls of the anti-overflow platform 413 at both ends, the two ends of the smoothing rod 422 are slidably arranged on the side walls of the smoothing groove 421, the smoothing plate 423 is rotatably arranged on the side wall of the smoothing rod 422, the counterweight 426 is fixedly arranged on the side wall of the smoothing plate 423, and one end of the tension rope 424 is fixedly arranged on the pressure plate 412 side wall, the other end of the tension rope 424 is fixed on the side wall of one end of the smoothing rod 422, one end of the return spring 425 is fixed on the side wall of one end of the smoothing groove 421, the other end of the return spring 425 is fixed on the side wall of one end of the smoothing rod 422, and a pulley 427 is fixed on the side wall of one end of the overflow prevention platform 413 and the top of the main frame 1 respectively, and the tension rope 424 passes through the pulley 427 at one end of the overflow prevention platform 413 close to the main frame 1 and the pulley 427 at the top of the main frame 1.

[0030] An electrical control panel 101 is fixedly provided on the side wall of the main frame 1, and the electrical control panel 101 is electrically connected to the first servo motor 212, the second servo motor 217, the third servo motor 223, the fourth servo motor 305, the fifth servo motor 502, the sixth servo motor 414, the die hydraulic press 411, the transverse hydraulic press 509, the pressure sensor 510 and the longitudinal hydraulic press 511 through wires.

[0031] The first threaded rod 213 is connected to the sliding frame 214 by threads, the reverse threaded rod 503 is connected to the clamping column 504 by threads, the reverse threaded rod 503 is connected to the auxiliary rod 507 by threads, and the second threaded rod 415 is connected to the anti-overflow platform 413 by threads.

[0032] The threads at both ends of the reverse threaded rod 503 rotate in opposite directions, and the inner cavity at the bottom end of the sand-laying pipe 227 is in the shape of a long strip.

[0033] When in use, first place the mold on the fixed table 303. The user can control the fifth servo motor 502 to rotate through the electrical control panel 101. By rotating the reverse threaded rod 503, the clamping column 504 and the auxiliary rod 507 can move toward each other in the fixed groove 501 until the clamping column 504 and the auxiliary rod 507 clamp the mold. Then, the user can control the horizontal hydraulic press 509 to extend through the electrical control panel 101, and then push the limit blocks 508 to move toward each other. The two limit blocks 508 can clamp the mold. Then, the user can control the longitudinal hydraulic press 511 to retract through the electrical control panel 101, so that the L-shaped telescopic rod 506 can move downward until the pressure sensor 510 contacts the mold. At this time, the longitudinal hydraulic press 511 can stop working, and the mold is clamped. Then the user can control the sixth servo motor 414 to work through the electrical control panel 101, and the second threaded rod 415 rotates to make the anti-overflow platform 413 move downward until it contacts the upper surface of the mold. Then the user can control the first servo motor 212 to work through the electrical control panel 101, and the first threaded rod 213 drives the sliding frame 214 and the sand-laying pipe 227 to slide on the slide rail 211 until the bottom end of the sand-laying pipe 227 moves above the edge of the mold. Then the user can control the second servo motor 217, the first servo motor 212 and the third servo motor 223 to work through the electrical control panel 101. The operation of the second servo motor 217 can drive the propeller 218 to rotate, so that the feeding bin The sand material pre-placed in 215 is transported to the top of the sand screen 226 through the feed pipe 216 and falls into the sand screen 226. The third servo motor 223 can rotate the rotating rod 224, which is driven by the transmission rod 225 to make the sand screen 226 reciprocate in the sand screening trough 222, so as to screen the sand material. The screened sand material can fall into the mold through the sand laying pipe 227. The user controls the first servo motor 212 to reverse at a fixed time, which can drive the sliding frame 214 to reciprocate on the slide rail 211, so that the bottom end of the sand laying pipe 227 can reciprocate above the mold, so that the sand material can be evenly spread in the mold, and the bottom end outlet of the sand laying pipe 227 is a long strip, so that the sand material is evenly distributed in the mold. At the same time, the user can control the fourth servo motor 305 to work through the electrical control panel 101, which can drive the vibration deflector 306 to rotate. The surface of the vibration deflector 306 contacts the vibration auxiliary rod 304. When the vibration deflector 306 is closest to the axis and contacts the vibration auxiliary rod 304, the fixed table 303 is at the lowest point. When the vibration deflector 306 is farthest from the axis and contacts the vibration auxiliary rod 304, the fixed table 303 is at the highest point. The vibration deflector 306 continues to rotate, which can make the fixed table 303 and the mold vibrate up and down, thereby achieving the effect of vibrating the sand raw material in the mold, so that the sand raw material inside the mold is evenly distributed. When the sand raw material needs to be compacted, the sand laying pipe 227 can be controlled to return to the original position, and the sand falling and vibration can be stopped. Then the user can control the mold pressing hydraulic press 411 to extend through the electrical control panel 101, thereby driving the pressing plate 412 to move downward until it contacts the sand raw material. When the pressing plate 412 is pressed downward, the tension rope 424 is tightened, and the tension rope 424 is used to pull the smoothing rod 422 to move toward the main frame 1 through the transmission of the rope wheel 427, and the smoothing plate 423 equipped with the counterweight block 426 can smooth the uneven sand raw materials in the mold. When the pressing plate 412 contacts the sand raw materials, the smoothing rod 422 is located at the end of the anti-overflow platform 413 close to the main frame 1. When the sand raw materials are compacted, the user can control the die pressing hydraulic press 411 to retract, thereby driving the pressing plate 412 to move upward. Since there is no tension transmitted by the tension rope 424, the smoothing plate 423 will be moved to the initial position by the tension of the reset spring 425. During the movement, since the smoothing plate 423 is restricted by the smoothing rod 422 to rotate clockwise, the smoothing plate 423 will force the excess sand raw materials on the upper surface of the mold to be pushed to the end of the anti-overflow platform 413 away from the main frame 1, and then fall into the recovery box 416; After the sand casting is completed, the fifth servo motor 502 can be controlled to reverse, the transverse hydraulic press 509 can be retracted, and the longitudinal hydraulic press 511 can be extended, so as to release the fixation of the mold.

[0034] It should be noted that, in this document, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0035] The present invention and its embodiments are described above, which is not restrictive. What is shown in the accompanying drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and do not deviate from the purpose of the invention, they can creatively design structural methods and embodiments similar to the technical scheme, which should all fall within the scope of protection of the present invention.

Claims

1. An automatic sand casting device, characterized in that: The invention comprises a main frame (1), a feeding mechanism (2), a vibrating mechanism (3), a compacting mechanism (4) and a fixing mechanism (5), wherein the feeding mechanism (2) is arranged on the side wall of the main frame (1), the vibrating mechanism (3) is arranged on the bottom end of the main frame (1), the compacting mechanism (4) is arranged on the top end of the main frame (1), the fixing mechanism (5) is arranged on the top end of the vibrating mechanism (3), the feeding mechanism (2) comprises a reciprocating mechanism (210) and a sand screening mechanism (220), the reciprocating mechanism (210) is arranged on the side wall of the top end of the main frame (1), the sand screening mechanism (220) is arranged on the side wall of the reciprocating mechanism (210), the compacting mechanism (4) comprises a die pressing mechanism (410) and a smoothing mechanism (420), the die pressing mechanism (410) is arranged on the top end of the main frame (1), and the smoothing mechanism (420) is arranged on the side wall of the die pressing mechanism (410).

2. An automatic sand casting device according to claim 1, characterized in that: The reciprocating mechanism (210) comprises a slide rail (211), a first servo motor (212), a first threaded rod (213), a sliding frame (214), a feed bin (215), a feed pipe (216), a second servo motor (217) and a propeller (218), wherein the slide rail (211) is fixedly arranged on a top side wall of the main frame (1), the first servo motor (212) is fixedly arranged on a side wall of the main frame (1), two ends of the sliding frame (214) are slidably arranged on the side walls of the slide rail (211), and the first threaded rod (213) is coaxially fixedly arranged on an input side wall of the first servo motor (212). The output end of the sliding frame (214) is sleeved on the outer wall of the first threaded rod (213), the feed bin (215) is fixedly arranged on the top of the sliding frame (214), the feed pipe (216) is fixedly arranged on the side wall of the bottom end of the feed bin (215), the second servo motor (217) is fixedly arranged on the side wall of the sliding frame (214), the output end of the second servo motor (217) passes through the side wall of the feed bin (215), the propeller (218) is coaxially fixedly arranged on the output end of the second servo motor (217), and the other end of the propeller (218) rotates on the side wall of the feed pipe (216).

3. An automatic sand casting device according to claim 2, characterized in that: The sand screening mechanism (220) comprises a sand screening frame (221), a sand screening trough (222), a third servo motor (223), a rotating rod (224), a transmission rod (225), a sand screen (226) and a sand laying pipeline (227); the sand screening frame (221) is fixedly arranged on a side wall of the sliding frame (214); the sand screening trough (222) is provided on both end side walls of the sand screening frame (221); and the sand screen (226) is slidably arranged on the sand screening trough ( The third servo motor (223) is fixedly arranged on the side wall of the sand screening frame (221), one end of the rotating rod (224) is rotatably arranged on the output end of the third servo motor (223), one end of the transmission rod (225) is rotatably arranged on the side wall of one end of the rotating rod (224), the other end of the rotating rod (224) is rotatably arranged on the side wall of the sand screen (226), and the sand laying pipeline (227) is fixedly arranged on the side wall of the sand screening frame (221).

4. An automatic sand casting device according to claim 3, characterized in that: The vibration mechanism (3) comprises a support platform (301), a support groove (302), a fixed platform (303), a vibration auxiliary rod (304), a fourth servo motor (305) and a vibration deflector (306); the support platform (301) is fixedly arranged on the side wall of the bottom end of the main frame (1); the support groove (302) is opened at the top of the support platform (301); the fixed platform (303) is slidably arranged on the side wall of the support groove (302); the vibration auxiliary rod (304) is arranged in an array on the side walls at both ends of the fixed platform (303); the fourth servo motor (305) is arranged in an array on the side wall of the fixed platform (303); the vibration deflector (306) is coaxially fixedly arranged on the output end of the fourth servo motor (305); the vibration auxiliary rod (304) is located above the vibration deflector (306); and the side wall of the vibration deflector (306) is in contact with the vibration auxiliary rod (304).

5. The automatic sand casting device according to claim 4, characterized in that: The fixing mechanism (5) comprises a fixing groove (501), a fifth servo motor (502), a reverse threaded rod (503), a clamping column (504), a clamping groove (505), an L-shaped telescopic rod (506), an auxiliary rod (507), a limit block (508), a transverse hydraulic device (509), a pressure sensor (510) and a longitudinal hydraulic device (511); the fixing grooves (501) are arranged in pairs at the top of the fixing platform (303); the fifth servo motor (502) is fixedly arranged on a side wall at one end of the fixing groove (501); one end of the reverse threaded rod (503) is coaxially fixedly arranged on an output end of the fifth servo motor (502); the other end of the reverse threaded rod (503) is rotated on the side wall at the other end of the fixing groove (501); the clamping column (504) is slidably arranged on the side wall of the fixing groove (501); the auxiliary rod (507) is slidably arranged on the side wall of the fixing groove (501), the side wall of the clamping column (504) is sleeved on the outer wall of one end of the reverse threaded rod (503), the side wall of the auxiliary rod (507) is sleeved on the side wall of the other end of the reverse threaded rod (503), the clamping groove (505) is opened at the top of the clamping column (504), the L-shaped telescopic rod (506) is slidably arranged on the side wall of the clamping groove (505), the longitudinal hydraulic pressure (511) is fixedly arranged at the top of the clamping groove (505), the output end of the longitudinal hydraulic pressure (511) is fixedly connected to the bottom end of the L-shaped telescopic rod (506), the pressure sensor (510) is fixedly arranged at the bottom end of the L-shaped telescopic rod (506), the transverse hydraulic pressure (509) is fixedly arranged on the side wall of the clamping column (504), and the limit block (508) is fixedly arranged at the output end of the transverse hydraulic pressure (509).

6. The automatic sand casting device according to claim 5, characterized in that: The die pressing mechanism (410) comprises a die pressing hydraulic press (411), a pressing plate (412), an anti-overflow platform (413), a sixth servo motor (414), a second threaded rod (415) and a recovery box (416); the die pressing hydraulic press (411) is fixedly arranged at the bottom end of the main frame (1); the pressing plate (412) is fixedly arranged at the output end of the die pressing hydraulic press (411); the anti-overflow platform (413) is slidably arranged on the side wall of the main frame (1); the sixth servo motor (414) is fixedly arranged at the bottom end of the main frame (1); the second threaded rod (415) is coaxially fixedly arranged at the output end of the sixth servo motor (414); the top end of the anti-overflow platform (413) is sleeved on the outer wall of the second threaded rod (415); and the recovery box (416) is fixedly arranged on the side wall of the main frame (1).

7. An automatic sand casting device according to claim 6, characterized in that: The smoothing mechanism (420) comprises a smoothing groove (421), a smoothing rod (422), a smoothing plate (423), a tension rope (424), a return spring (425) and a counterweight (426); the smoothing groove (421) is provided at the side walls at both ends of the overflow prevention platform (413); the two ends of the smoothing rod (422) are slidably arranged on the side walls of the smoothing groove (421); the smoothing plate (423) is rotatably arranged on the side walls of the smoothing rod (422); the counterweight (426) is fixedly arranged on the side walls of the smoothing plate (423); one end of the tension rope (424) is fixedly arranged on the pressure plate (425); The side wall of the plate (412), the other end of the tension rope (424) is fixedly arranged on the side wall of one end of the smoothing rod (422), one end of the return spring (425) is fixedly arranged on the side wall of the smoothing groove (421), the other end of the return spring (425) is fixedly arranged on the side wall of one end of the smoothing rod (422), a rope wheel (427) is fixedly arranged on the side wall of one end of the overflow prevention platform (413) and the top of the main frame (1), respectively, and the tension rope (424) passes through the rope wheel (427) at one end of the overflow prevention platform (413) close to the main frame (1) and the rope wheel (427) at the top of the main frame (1).

8. The automatic sand casting device according to claim 7, characterized in that: An electrical control panel (101) is fixedly provided on a side wall of the main frame (1); the electrical control panel (101) is electrically connected to a first servo motor (212), a second servo motor (217), a third servo motor (223), a fourth servo motor (305), a fifth servo motor (502), a sixth servo motor (414), a die press (411), a transverse press (509), a pressure sensor (510), and a longitudinal press (511) via wires.

9. The automatic sand casting device according to claim 8, characterized in that: The first threaded rod (213) is threadedly connected to the sliding frame (214), the reverse threaded rod (503) is threadedly connected to the clamping column (504), the reverse threaded rod (503) is threadedly connected to the auxiliary rod (507), and the second threaded rod (415) is threadedly connected to the anti-overflow platform (413).

10. The automatic sand casting device according to claim 9, characterized in that: The threads at both ends of the reverse threaded rod (503) rotate in opposite directions, and the inner cavity at the bottom end of the sand-laying pipe (227) is in the shape of a long strip.

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