Intelligent casting device and casting process for silica sol shell making

Abstract

The invention discloses an intelligent casting device and casting technology for silica sol shell making and relates to the technical field of silica sol shell making casting, the intelligent casting device comprises a workbench, a supporting plate, a rotating device, a cleaning device, a sizing device and a slinging device, the rotating device can automatically convey wax molds to all procedures, manpower is saved, and the efficiency is improved. The cleaning device not only can remove greasy dirt and dust on the wax mould, but also can slightly etch the surface of the wax mould and increase the specific surface area of the wax mould, a large number of tiny concave-convex textures are formed on the surface of the wax mould, the roughness of the surface of the wax mould is improved, the adhesive ability of slurry on the wax mould is improved, the slurry can be more uniformly attached to the wax mould, and the wax mould is more uniform in surface cleaning. The slinging device can enable sand grains to impact a wax mold at a certain angle and speed, so that the surface of the wax mold obtains sufficient kinetic energy, the sand is more stably attached to the wax mold, meanwhile, the sand bonded together can be crushed, the sizes of the sand attached to the surface of the wax mold are consistent, and the quality of a silica sol shell is improved.

Description

Technical Field

[0001] The invention relates to the technical field of silica sol shell casting, and in particular to an intelligent silica sol shell casting device and a casting process. Background Art

[0002] Silica sol shell making technology is an advanced method for precision casting, which is widely used in aerospace, automobile manufacturing and mold industry. This technology uses silica sol as a binder, mixes refractory materials with ceramic powder to form a coating, and builds a solid ceramic shell layer by layer through multiple coatings and baking. This method has high precision, good surface finish and complex shape casting molding capabilities. The casting of silica sol shells adopts a dry hardening gelation method, and its steps mainly include cleaning, coating, sanding and drying. There are defects in the existing technology: the existing silica sol shell making is usually done manually, with high labor intensity and low production efficiency; the existing silica sol shell making, when sizing, the surface of the wax mold is too smooth, resulting in uneven sizing areas, and some areas are difficult to adhere to the slurry; when sanding, the sand is usually freely dropped onto the wax mold, which will make the sanding uneven and unstable, and may cause sand to fall off, affecting the quality of the finished product. Summary of the invention

[0003] The purpose of the present invention is to provide a silica sol shell intelligent casting device and casting process to solve the problems raised in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solution: the intelligent casting device includes a workbench, a support plate is installed on one side of the workbench, a rotating device is installed on the support plate, a cleaning device, a sizing device and a sanding device are installed on one side of the rotating device, the cleaning device, the sizing device and the sanding device are installed on the workbench, and the cleaning device is located between the sizing device and the sanding device.

[0005] The rotating device includes a first motor, which is mounted on a support plate, a first rotating shaft is mounted on an output shaft of the first motor, the first rotating shaft rotates on the support plate, a dial and a first gear are mounted on the first rotating shaft, a support column is mounted on one side of the support plate, one end of the support column is rotatably connected to a groove wheel, the groove wheel cooperates with the dial, a connecting column is mounted on one side of the groove wheel, a rotating disk is mounted on one end of the connecting column, a sleeve is rotatably connected to the connecting column, a second gear and a third gear are mounted on the sleeve, a first belt is mounted on the first gear and the second gear, a partition is mounted on one side of the rotating disk, a clamp is rotatably connected to the rotating disk, a fourth gear is mounted on one end of the clamp, a second belt is mounted on the third gear and the fourth gear, and the first motor is connected to a control system.

[0006] The cleaning device includes an L-shaped plate, a recovery liquid tank is installed on one side of the L-shaped plate, the recovery liquid tank is installed on a workbench, a base plate is installed on one side of the recovery liquid tank, a liquid spraying device and a vertical pipe are installed on the base plate, a first slide rail is installed on one side of the L-shaped plate, a vertical pipe is installed on the base plate, a horizontal pipe is installed on one side of the vertical pipe, a heater is installed at one end of the vertical pipe, a connecting pipe is installed at one end of the heater, the connecting pipe is connected to the liquid spraying device through a pipeline, and the heater is connected to the control system.

[0007] The recovery liquid tank includes a liquid collecting tank, a liquid storage tank is installed on one side of the liquid collecting tank, a through hole is provided at the bottom of the liquid collecting tank, a filter plate is installed in the liquid storage tank, a second rotating shaft and a third rotating shaft are rotatably connected on the inner wall of the liquid storage tank close to the filter plate, the second rotating shaft is located above the third rotating shaft, a driving fan and a first pinion are installed on the second rotating shaft, a drainage fan and a second pinion are installed on the third rotating shaft, a guide pipe is installed in the through hole, the guide pipe is located above the blades of the driving fan, a third belt is installed on the first pinion and the second pinion, a fan is installed at the other end of the second rotating shaft, and the fan is located inside the horizontal pipe.

[0008] The liquid spraying device comprises a vertical plate, a support block is installed on one side of the vertical plate, an upper plate and a lower plate are installed on the other side of the vertical plate, a second motor is installed on one end of the upper plate, a screw rod is installed on the output shaft of the second motor, one end of the screw rod is installed on the lower plate, a first mounting block and a second mounting block are installed between the upper plate and the lower plate, an upper rack is installed on one side of the first mounting block, a lower rack is installed on one side of the second mounting block, a slider is slidably connected to the screw rod, a transfer block is installed on one side of the slider, a nozzle is installed on one side of the transfer block, a large nozzle hole, a small nozzle hole and an air outlet hole are installed on the nozzle, and a switching plate is installed inside the nozzle , a small hole corresponding to the nozzle is provided on the switching plate, a liquid inlet pipe is installed on the nozzle, a hollow rotating shaft is installed inside the adapter block, one end of the hollow rotating shaft rotates in the air outlet, and a half gear is installed on the other end of the hollow rotating shaft, one side of the adapter block is rotatably connected with a first spur gear and a second spur gear, an air inlet pipe is installed on the adapter block, the air inlet pipe is connected to the hollow rotating shaft through a pipe, the first spur gear is meshed with an upper rack, the second spur gear is meshed with a lower rack, a water pump is installed on the bottom plate, the water pump is connected to a liquid storage tank through a pipe, the water pump is connected to the liquid inlet pipe through a pipe, and the second motor and the water pump are connected to the control system.

[0009] The sizing device includes a hydraulic cylinder installed in a workbench. A slurry box is installed on the cylinder rod of the hydraulic cylinder. The slurry box slides on a first slide rail and a sand spreading device. An agitator is installed at the bottom of the slurry box. The hydraulic cylinder and the agitator are connected to a control system.

[0010] The sand spreading device includes a sand collecting box, which is installed on a workbench. A sand throwing device is installed inside the sand collecting box, a third motor is installed at one end of the sand throwing device, a fixed plate is installed at one side of the sand collecting box, a second slide rail is installed at one side of the fixed plate, the slurry box slides on the second slide rail, a sand pump is installed at one side of the sand collecting box, a sand outlet pipe is installed at one side of the sand outlet pipe, a sand blasting head is installed at one side of the sand outlet pipe, and the third motor and the sand pump are connected to a control system.

[0011] The sand throwing device comprises a first screen plate and a second screen plate, a first convex rod is installed on one side of the first screen plate, the first convex rod slides on the second screen plate, a first guide rod is installed on the other side of the first screen plate, a first limit block is installed on one end of the first guide rod, a first fixed block and a second fixed block are installed on the inner wall of the sand collecting box, the first guide rod slides in the first fixed block, a first spring is installed between the first screen plate and the first fixed block, a second convex rod and a second guide rod are installed on one side of the second screen plate, a second limit block is installed on one end of the second guide rod, the second guide rod slides in the second fixed block, a second spring is installed between the second fixed block and the second screen plate, a fourth rotating shaft is rotatably connected to the sand collecting box, one end of the fourth rotating shaft is installed on the third motor, a first cam and a second cam are installed on the fourth rotating shaft, the first cam and the first convex rod cooperate, the second cam and the second convex rod cooperate, the size of the first cam is larger than the size of the second cam, and the size of the sieve hole of the first screen plate is larger than the size of the sieve hole of the second screen plate.

[0012] A silica sol shell casting process, using a silica sol shell intelligent casting device, the method comprises the following steps: S1. Clean the wax model; S2, sizing; S3, sand spreading; S4. Drying.

[0013] The S1 comprises the following steps: S101, control the water pump to start, the water pump draws the cleaning liquid in the liquid storage tank into the nozzle through the liquid inlet pipe, the cleaning liquid is sprayed out from the large spray hole through the switching plate, control the second motor to start, the second motor drives the screw rod to rotate, the screw rod drives the slider to move in the direction close to the lower plate, the slider drives the adapter block to move, the adapter block drives the nozzle to move, the oil and dust on the surface of the wax mold are removed, the lower rack drives the second spur gear to rotate, the second spur gear drives the half gear to rotate, the half gear drives the hollow shaft to rotate, the hollow shaft drives the switching plate to rotate, at this time the half gear is meshed with the first spur gear, and the cleaning liquid is sprayed out from the small spray hole of the nozzle; S102, control the output shaft of the second motor to reverse, the second motor drives the lead screw to reverse, the lead screw drives the slider to move away from the lower plate, the spray speed of the cleaning liquid becomes faster, the surface of the wax mold is lightly etched, the upper rack drives the first spur gear to rotate, the first spur gear drives the half gear to rotate, the half gear drives the hollow shaft to rotate, the hollow shaft drives the switching plate to rotate, at this time the half gear is meshed with the second spur gear, and the cleaning liquid is sprayed out from the large spray hole of the nozzle; S103, the cleaning liquid in the liquid collection tank flows from the through hole to the blades of the driving fan, the cleaning liquid drives the driving fan to rotate, the driving fan drives the second rotating shaft to rotate, the second rotating shaft drives the first pinion and the fan to rotate, the first pinion drives the third belt to rotate, the third belt drives the second pinion to rotate, the second pinion drives the third rotating shaft to rotate, the third rotating shaft drives the drainage fan to rotate, and the fan blows air into the horizontal pipe; S104, when the cleaning is finished, the water pump is controlled to stop, the heater is controlled to start, the wind enters the heater through the vertical pipe to form hot wind, the hot wind enters the hollow shaft, blows the wax model through the air outlet, and the second motor is controlled to start, the second motor drives the nozzle to move, and the wax model is dried; The S2 comprises the following steps: S201, the dial drives the groove wheel to rotate, the groove wheel drives the connecting column to rotate, the connecting column drives the first gear to drive the rotating disk to rotate, the rotating disk drives the clamp and the partition to rotate, the clamp drives the wax model to rotate to the slurry application position, the cylinder rod of the hydraulic cylinder is controlled to extend, the cylinder rod drives the slurry box to slide on the first slide rail and the second slide rail toward the wax model, the agitator is controlled to start, and when the wax model is immersed in the slurry, the cylinder rod of the hydraulic cylinder is controlled to be retracted, and the cylinder rod drives the slurry box to return to the initial position; The S3 comprises the following steps: S301, the dial drives the groove wheel to rotate, so that the wax model rotates to the sand spreading position, controls the sand pump to start, and the sand pump pumps the sand in the sand collecting box into the sand outlet pipe, and sprays it onto the wax model through the sand blasting head, and the wax model is sanded for the first time, and the remaining sand falls onto the first screen plate; S302, control the third motor to start, the third motor drives the fourth shaft to rotate, the fourth shaft drives the first cam and the second cam to rotate, the first cam drives the first convex rod to move, the first convex rod drives the first screen plate to move, the second cam drives the second convex rod to move, the second convex rod drives the second screen plate to move, when the flange of the first cam contacts the first convex rod, the base circle of the second cam contacts the second convex rod, the first screen plate throws sand onto the wax mold, the first spring drives the first guide rod to vibrate up and down, the first guide rod drives the first screen plate to vibrate up and down, and the accumulated sand falls onto the second screen plate through the sieve hole; S303, when the base circle of the first cam contacts the first convex rod, the flange of the second cam contacts the second convex rod, the second screen plate hits the bottom of the first screen plate with the sand, crushes the sand bonded together, and makes the sand attached to the surface of the wax mold consistent in size, the second spring drives the second guide rod to vibrate up and down, the second guide rod drives the second screen plate to vibrate up and down, and the accumulated sand falls into the sand collecting box through the screen hole; The S4 comprises the following steps: S401, the dial drives the groove wheel to rotate, so that the wax model rotates to a dry position, the heater is controlled to start, hot air blows to the wax model through the air outlet, the second motor is controlled to start, and the second motor drives the nozzle to move to dry the wax model.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention adopts a fully automatic casting method, abandoning the production process of traditional technology that requires a lot of manual intervention. It is more intelligent, reduces labor costs, improves production efficiency, avoids errors caused by uneven manual operation or fatigue, and ensures that the slurry and sand layer are evenly distributed in various parts, thereby greatly improving the surface quality and overall structural stability of the casting; 2. The cleaning device of the present invention can not only remove oil and dust on the wax mold, ensure that the surface is clean and free of impurities, and avoid the negative impact of pollutants on subsequent processes, but also can lightly etch the surface of the wax mold, which not only increases the specific surface area of ​​the wax mold, but also forms a large number of tiny concave and convex textures on the surface, increases the roughness of the wax mold surface, and improves the adhesion ability of the slurry on the wax mold, so that the slurry can be more evenly attached to the wax mold; 3. The sand-spreading device of the present invention can throw sand onto the wax model. During the sand-spreading process, the sand particles hit the wax model at a certain angle and speed, so that the surface of the wax model obtains sufficient kinetic energy, thereby prompting the sand particles to form a stronger connection with the wax model, making the sand adhere to the wax model more firmly, and at the same time, the sand that is bonded together can be crushed, so that the sand attached to the surface of the wax model is of uniform size, and the overall quality is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional diagram of the intelligent casting device of the present invention; Figure 2 is a three-dimensional diagram of the rotating device of the present invention; Figure 3 is a perspective view of the cleaning device of the present invention; Figure 4 It is a schematic diagram of the interior of the recovery liquid tank of the present invention; Figure 5 is a three-dimensional diagram of the liquid spraying device of the present invention; Figure 6 It is an exploded view of the adapter block and the nozzle of the present invention; Figure 7 A three-dimensional diagram of a sizing device according to the present invention; Figure 8 is a perspective view of the sand spreading device of the present invention; Fig. 9 It is a three-dimensional diagram of the sand throwing device of the present invention.

[0016] In the figure: 1, workbench; 2, support plate; 3, rotating device; 31, first motor; 32, dial; 33, groove wheel; 34, support column; 35, first belt; 36, second belt; 37, rotating disk; 38, partition; 39, clamp; 4, cleaning device; 41, recovery liquid tank; 4101, liquid collecting tank; 4102, through hole; 4103, liquid storage tank; 4104, filter plate; 4105, driving fan; 4106, second rotating shaft; 4107, first pinion; 4108, third rotating shaft; 4109, second pinion; 4110, third belt; 4111, drainage fan; 4112, fan; 42, bottom plate; 43, liquid spraying device; 4301, vertical plate; 4302, support block; 4303, upper plate; 4304, second motor; 4305, lead screw; 4306, slider; 4307, first mounting block; 4308, second mounting block; 4309, rotating shaft; Connecting block; 4310, nozzle; 4311, switching plate; 4312, half gear; 4313, first straight gear; 4314, second straight gear; 4315, air inlet pipe; 4316, liquid inlet pipe; 4317, water pump; 44, vertical pipe; 45, L-shaped plate; 46, first slide rail; 47, horizontal pipe; 48, heater; 5, sizing device; 51, slurry box; 52, hydraulic cylinder; 6, sand spreading device; 61, sand collecting box; 62, sand throwing device 6201, first sieve plate; 6202, first protruding rod; 6203, first guide rod; 6204, first fixed block; 6205, second sieve plate; 6206, second protruding rod; 6207, second guide rod; 6208, second fixed block; 6209, fourth rotating shaft; 6210, first cam; 6211, second cam; 63, fixed plate; 64, second slide rail; 65, third motor; 66, sand pump; 67, sand outlet pipe. DETAILED DESCRIPTION

[0017] 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.

[0018] Example: Figure 1-Figure 9As shown, the present invention provides a technical solution, the intelligent casting device includes a workbench 1, a support plate 2 is installed on one side of the workbench 1, a rotating device 3 is installed on the support plate 2, a cleaning device 4, a sizing device 5 and a sanding device 6 are installed on one side of the rotating device 3, the cleaning device 4, the sizing device 5 and the sanding device 6 are installed on the workbench 1, and the cleaning device 4 is located between the sizing device 5 and the sanding device 6.

[0019] The rotating device 3 includes a first motor 31, which is mounted on the support plate 2. A first rotating shaft is mounted on the output shaft of the first motor 31, and the first rotating shaft rotates on the support plate 2. A dial 32 and a first gear are mounted on the first rotating shaft. A support column 34 is mounted on one side of the support plate 2. A groove wheel 33 is rotatably connected to one end of the support column 34. The groove wheel 33 cooperates with the dial 32. A connecting column is mounted on one side of the groove wheel 33. A rotating disk 37 is mounted on one end of the connecting column. A sleeve is rotatably connected to the connecting column. A second gear and a third gear are mounted on the sleeve. A first belt 35 is mounted on the first gear and the second gear. A partition plate 38 is mounted on one side of the rotating disk 37. A clamp 39 is rotatably connected to the rotating disk 37. A fourth gear is mounted on one end of the clamp 39. A second belt 36 is mounted on the third gear and the fourth gear. The first motor 31 is connected to the control system.

[0020] The cleaning device 4 includes an L-shaped plate 45, a recovery liquid tank 41 is installed on one side of the L-shaped plate 45, the recovery liquid tank 41 is installed on the workbench 1, a bottom plate 42 is installed on one side of the recovery liquid tank 41, a liquid spraying device 43 and a vertical pipe 44 are installed on the bottom plate 42, a first slide rail 46 is installed on one side of the L-shaped plate 45, a vertical pipe 44 is installed on the bottom plate 42, a horizontal pipe 47 is installed on one side of the vertical pipe 44, a heater 48 is installed at one end of the vertical pipe 44, a connecting pipe is installed at one end of the heater 48, the connecting pipe is connected to the liquid spraying device 43 through a pipeline, and the heater 48 is connected to the control system.

[0021] The recovery liquid tank 41 includes a liquid collecting tank 4101, a liquid storage tank 4103 is installed on one side of the liquid collecting tank 4101, a through hole 4102 is provided at the bottom of the liquid collecting tank 4101, a filter plate 4104 is installed in the liquid storage tank 4103, and a second rotating shaft 4106 and a third rotating shaft 4108 are rotatably connected on the inner wall of the liquid storage tank 4103 close to the filter plate 4104, the second rotating shaft 4106 is located above the third rotating shaft 4108, and a filter plate 4104 is installed on the second rotating shaft 4106. There are a driving fan 4105 and a first pinion 4107, a drainage fan 4111 and a second pinion 4109 are installed on the third rotating shaft 4108, a guide tube is installed in the through hole 4102, and the guide tube is located above the blades of the driving fan 4105, a third belt 4110 is installed on the first pinion 4107 and the second pinion 4109, and a fan 4112 is installed at the other end of the second rotating shaft 4106, and the fan 4112 is located inside the horizontal pipe 47.

[0022] The liquid spraying device 43 includes a vertical plate 4301, a support block 4302 is installed on one side of the vertical plate 4301, an upper plate 4303 and a lower plate are installed on the other side of the vertical plate 4301, a second motor 4304 is installed on one end of the upper plate 4303, a screw rod 4305 is installed on the output shaft of the second motor 4304, one end of the screw rod 4305 is installed on the lower plate, a first mounting block 4307 and a second mounting block 4308 are installed between the upper plate 4303 and the lower plate, an upper rack is installed on one side of the first mounting block 4307, a lower rack is installed on one side of the second mounting block 4308, a slider 4306 is slidably connected to the screw rod 4305, a transfer block 4309 is installed on one side of the slider 4306, a nozzle 4310 is installed on one side of the transfer block 4309, a large nozzle hole, a small nozzle hole and an air outlet hole are installed on the nozzle 4310, and a cutting The switching plate 4311 is provided with a small hole corresponding to the nozzle 4310, the nozzle 4310 is installed with a liquid inlet pipe 4316, the adapter block 4309 is installed with a hollow shaft inside, one end of the hollow shaft rotates in the air outlet, and the other end of the hollow shaft is installed with a half gear 4312, one side of the adapter block 4309 is rotatably connected with a first spur gear 4313 and a second spur gear 4314, the adapter block 4309 is installed with an air inlet pipe 4315, the air inlet pipe 4315 is connected to the hollow shaft through a pipeline, the first spur gear 4313 is meshed with the upper rack, and the second spur gear 4314 is meshed with the lower rack, a water pump 4317 is installed on the bottom plate 42, the water pump 4317 is connected to the liquid storage tank 4103 through a pipeline, the water pump 4317 is connected to the liquid inlet pipe 4316 through a pipeline, and the second motor 4304 and the water pump 4317 are connected to the control system.

[0023] The sizing device 5 includes a hydraulic cylinder 52, which is installed in the workbench 1. A slurry box 51 is installed on the cylinder rod of the hydraulic cylinder 52. The slurry box 51 slides on the first slide rail 46 and the sand spreading device 6. An agitator is installed at the bottom of the slurry box 51. The hydraulic cylinder 52 and the agitator are connected to the control system.

[0024] The sand spreading device 6 includes a sand collecting box 61, which is installed on the workbench 1. A sand throwing device 62 is installed inside the sand collecting box 61, and a third motor 65 is installed at one end of the sand throwing device 62. A fixed plate 63 is installed on one side of the sand collecting box 61, and a second slide rail 64 is installed on one side of the fixed plate 63. The slurry box 51 slides on the second slide rail 64. A sand pump 66 is installed on one side of the sand collecting box 61, and a sand outlet pipe 67 is installed on one side of the sand outlet pipe 67. A sand blasting head is installed on one side of the sand outlet pipe 67. The third motor 65 and the sand pump 66 are connected to the control system.

[0025] The sand throwing device 62 includes a first sieve plate 6201 and a second sieve plate 6205. A first protruding rod 6202 is installed on one side of the first sieve plate 6201, and the first protruding rod 6202 slides on the second sieve plate 6205. A first guide rod 6203 is installed on the other side of the first sieve plate 6201, and a first limiting block is installed on one end of the first guide rod 6203. A first fixed block 6204 and a second fixed block 6208 are installed on the inner wall of the sand collecting box 61. The first guide rod 6203 slides in the first fixed block 6204. A first spring is installed between the first sieve plate 6201 and the first fixed block 6204. A second protruding rod 6206 and a second guide rod 6207 are installed on one side of the second sieve plate 6205. A second limit block is installed at one end of the rod 6207, and the second guide rod 6207 slides in the second fixed block 6208. A second spring is installed between the second fixed block 6208 and the second screen plate 6205. A fourth rotating shaft 6209 is rotatably connected to the sand collecting box 61, and one end of the fourth rotating shaft 6209 is installed on the third motor 65. A first cam 6210 and a second cam 6211 are installed on the fourth rotating shaft 6209. The first cam 6210 cooperates with the first protruding rod 6202, and the second cam 6211 cooperates with the second protruding rod 6206. The size of the first cam 6210 is larger than the size of the second cam 6211, and the sieve hole size of the first sieve plate 6201 is larger than the sieve hole size of the second sieve plate 6205.

[0026] A silica sol shell casting process, using a silica sol shell intelligent casting device, the method comprises the following steps: S1. Clean the wax model; S2, sizing; S3, sand spreading; S4. Drying.

[0027] The S1 comprises the following steps: S101, control the water pump 4317 to start, the water pump 4317 pumps the cleaning liquid in the liquid storage tank 4103 into the nozzle 4310 through the liquid inlet pipe 4316, and the cleaning liquid is sprayed out from the large spray hole through the switching plate 4311, and the second motor 4304 is controlled to start, the second motor 4304 drives the screw rod 4305 to rotate, the screw rod 4305 drives the slider 4306 to move in the direction close to the lower plate, the slider 4306 drives the adapter block 4309 to move, the adapter block 4309 drives the nozzle 4310 to move, and the oil and dust on the surface of the wax mold are removed, the lower rack drives the second spur gear 4314 to rotate, the second spur gear 4314 drives the half gear 4312 to rotate, the half gear 4312 drives the hollow shaft to rotate, the hollow shaft drives the switching plate 4311 to rotate, at this time the half gear 4312 is meshed with the first spur gear 4313, and the cleaning liquid is sprayed out from the small spray hole of the nozzle 4310; S102, control the output shaft of the second motor 4304 to reverse, the second motor 4304 drives the lead screw 4305 to reverse, the lead screw 4305 drives the slider 4306 to move away from the lower plate, the spray speed of the cleaning liquid becomes faster, and the surface of the wax mold is lightly etched, the upper rack drives the first spur gear 4313 to rotate, the first spur gear 4313 drives the half gear 4312 to rotate, the half gear 4312 drives the hollow shaft to rotate, the hollow shaft drives the switching plate 4311 to rotate, at this time the half gear 4312 is meshed with the second spur gear 4314, and the cleaning liquid is sprayed out from the large spray hole of the nozzle 4310; S103, the cleaning liquid in the liquid collecting tank 4101 flows from the through hole 4102 to the blades of the driving fan 4105, the cleaning liquid drives the driving fan 4105 to rotate, the driving fan 4105 drives the second rotating shaft 4106 to rotate, the second rotating shaft 4106 drives the first pinion 4107 and the fan 4112 to rotate, the first pinion 4107 drives the third belt 4110 to rotate, the third belt 4110 drives the second pinion 4109 to rotate, the second pinion 4109 drives the third rotating shaft 4108 to rotate, the third rotating shaft 4108 drives the drainage fan 4111 to rotate, and the fan 4112 blows air into the horizontal pipe 47; S104, when the cleaning is finished, the water pump 4317 is controlled to stop, the heater 48 is controlled to start, the wind enters the heater 48 through the vertical pipe 44 to form hot wind, the hot wind enters the hollow shaft, and blows the wax model through the air outlet, the second motor 4304 is controlled to start, and the second motor 4304 drives the nozzle 4310 to move to dry the wax model; The S2 comprises the following steps: S201, the dial 32 drives the groove wheel 33 to rotate, the groove wheel 33 drives the connecting column to rotate, the connecting column drives the first gear to drive the rotating disk 37 to rotate, the rotating disk 37 drives the clamp 39 and the partition 38 to rotate, the clamp 39 drives the wax model to rotate to the slurry application position, the cylinder rod of the hydraulic cylinder 52 is controlled to extend, the cylinder rod drives the slurry box 51 to slide on the first slide rail 46 and the second slide rail 64 toward the wax model, the agitator is controlled to start, and when the wax model is immersed in the slurry, the cylinder rod of the hydraulic cylinder 52 is controlled to be retracted, and the cylinder rod drives the slurry box 51 to return to the initial position; The S3 comprises the following steps: S301, the dial 32 drives the groove wheel 33 to rotate, so that the wax model rotates to the sand spreading position, and the sand pump 66 is controlled to start. The sand pump 66 pumps the sand in the sand collecting box 61 into the sand outlet pipe 67, and sprays it onto the wax model through the sand blasting head, and the wax model is sanded for the first time. The remaining sand falls on the first screen plate 6201; S302, control the third motor 65 to start, the third motor 65 drives the fourth rotating shaft 6209 to rotate, the fourth rotating shaft 6209 drives the first cam 6210 and the second cam 6211 to rotate, the first cam 6210 drives the first convex rod 6202 to move, the first convex rod 6202 drives the first screen plate 6201 to move, the second cam 6211 drives the second convex rod 6206 to move, the second convex rod 6206 drives the second screen plate 6205 to move, when the flange of the first cam 6210 contacts the first convex rod 6202, at this time, the base circle of the second cam 6211 contacts the second convex rod 6206, the first screen plate 6201 throws sand onto the wax mold, the first spring drives the first guide rod 6203 to vibrate up and down, the first guide rod 6203 drives the first screen plate 6201 to vibrate up and down, and the accumulated sand falls onto the second screen plate 6205 through the sieve hole; S303, when the base circle of the first cam 6210 contacts the first convex rod 6202, the flange of the second cam 6211 contacts the second convex rod 6206, the second screen plate 6205 hits the sand on the bottom of the first screen plate 6201, the second spring drives the second guide rod 6207 to vibrate up and down, the second guide rod 6207 drives the second screen plate 6205 to vibrate up and down, and the accumulated sand falls into the sand collecting box 61; The S4 comprises the following steps: S401, the dial 32 drives the groove wheel 33 to rotate, so that the wax model is rotated to a dry place, the heater 48 is controlled to start, and hot air blows to the wax model through the air outlet, and the second motor 4304 is controlled to start, and the second motor 4304 drives the nozzle 4310 to move to dry the wax model.

[0028] Working principle of the present invention: During operation, the clamp 39 fixes the wax model, and the control system controls the first motor 31 to start, the first motor 31 drives the dial 32 and the first gear to rotate, the dial 32 drives the groove wheel 33 to rotate, the first gear drives the first belt 35 to rotate, the first belt 35 drives the second gear to rotate, the second gear drives the sleeve to rotate, the sleeve drives the third gear to rotate, the third gear drives the second belt 36 to rotate, the second belt 36 drives the fourth gear to rotate, and the fourth gear drives the clamp 39 to rotate.

[0029] The control system controls the water pump 4317 to start, and the water pump 4317 draws the cleaning liquid in the liquid storage tank 4103 into the nozzle 4310 through the liquid inlet pipe 4316. The cleaning liquid is sprayed out from the large spray hole through the switching plate 4311, and the second motor 4304 is controlled to start. The second motor 4304 drives the screw rod 4305 to rotate, and the screw rod 4305 drives the slider 4306 to move in the direction close to the lower plate, and the slider 4306 drives the adapter block 4309 to move, and the adapter block 4309 drives the nozzle 4310 to move to remove the oil and dust on the surface of the wax mold. When the slider 4306 moves to the lower rack, the lower rack drives the second spur gear 4314 to rotate, and the second spur gear 4314 drives the half gear 4312 to rotate, and the half gear 4312 drives the hollow shaft to rotate, and the hollow shaft drives the switching plate 4311 to rotate. At this time, the half gear 4312 and the first The spur gear 4313 is meshed, and the cleaning liquid is sprayed out from the small nozzle hole of the nozzle 4310, and the output shaft of the second motor 4304 is controlled to reverse. The second motor 4304 drives the lead screw 4305 to reverse, and the lead screw 4305 drives the slider 4306 to move away from the lower plate. The spray speed of the cleaning liquid becomes faster, and the surface of the wax mold is lightly etched, forming a large number of tiny concave and convex textures on the surface, increasing the roughness of the wax mold surface and improving the adhesion of the slurry to the wax mold. When the slider 4306 moves to the upper rack, the upper rack drives the first spur gear 4313 to rotate, and the first spur gear 4313 drives the half gear 4312 to rotate, and the half gear 4312 drives the hollow shaft to rotate, and the hollow shaft drives the switching plate 4311 to rotate. At this time, the half gear 4312 is meshed with the second spur gear 4314, and the cleaning liquid is sprayed out from the large nozzle hole of the nozzle 4310.

[0030] When the remaining cleaning liquid falls into the liquid collecting tank 4101, the cleaning liquid flows from the through hole 4102 to the blades of the driving fan 4105, and the cleaning liquid drives the driving fan 4105 to rotate, and the driving fan 4105 drives the second rotating shaft 4106 to rotate, and the second rotating shaft 4106 drives the first pinion 4107 and the fan 4112 to rotate, and the first pinion 4107 drives the third belt 4110 to rotate, and the third belt 4110 drives the second pinion 4109 to rotate, and the second pinion 4109 drives the third rotating shaft 4108 to rotate, and the third rotating shaft 4108 drives the drainage fan 4111 to rotate, and the rotation of the drainage fan 4111 accelerates the cleaning liquid to pass through the filter plate 4104 to prevent the cleaning liquid from accumulating, and the fan 4112 blows air into the horizontal pipe 47.

[0031] When cleaning is finished, the water pump 4317 is controlled to stop, the heater 48 is controlled to start, the wind enters the heater 48 through the vertical pipe 44 to form hot wind, the hot wind enters the hollow shaft, and blows the wax model through the air outlet, the second motor 4304 is controlled to start, the second motor 4304 drives the nozzle 4310 to move, and the wax model is dried. When drying is completed, the dial block of the dial 32 enters the groove of the groove wheel 33, the dial 32 drives the groove wheel 33 to rotate, the groove wheel 33 drives the connecting column to rotate, the connecting column drives the first gear to drive the rotating disk 37 to rotate, the rotating disk 37 drives the clamp 39 to rotate, the clamp 39 drives the wax model to rotate to the sizing position, and the hydraulic cylinder 52 is controlled The cylinder rod is extended, and the cylinder rod drives the slurry box 51 to slide on the first slide rail 46 and the second slide rail 64 toward the wax mold, and the agitator is controlled to start. The agitator stirs the slurry to make the slurry adhere more evenly. When the wax mold is immersed in the slurry, the cylinder rod of the hydraulic cylinder 52 is controlled to be retracted, and the cylinder rod drives the slurry box 51 to return to the initial position. When the slurry on the wax mold no longer drips, the dial block of the dial 32 enters the groove of the groove wheel 33, so that the wax mold is rotated to the sand sprinkling position, and the sand pump 66 is controlled to start. The sand pump 66 draws the sand in the sand collecting box 61 into the sand outlet pipe 67, and sprays it onto the wax mold through the sand blasting head. The wax mold is sanded for the first time and the sand falls on the first screen plate 6201.

[0032] When sand falls onto the first sieve plate 6201, the third motor 65 is controlled to start, the third motor 65 drives the fourth shaft 6209 to rotate, the fourth shaft 6209 drives the first cam 6210 and the second cam 6211 to rotate, the first cam 6210 drives the first convex rod 6202 to move, the first convex rod 6202 drives the first sieve plate 6201 to move, the second cam 6211 drives the second convex rod 6206 to move, the second convex rod 6206 drives the second sieve plate 6205 to move, when the flange of the first cam 6210 contacts the first convex rod 6202, at this time the base circle of the second cam 6211 contacts the second convex rod 6206, the first sieve plate 6201 throws the sand onto the wax mold, the first spring drives the first guide rod 6203 to vibrate up and down, the first guide rod 6203 drives the first sieve plate 6201 to vibrate up and down, the accumulated sand passes through the sieve hole and falls onto the second sieve plate 6205. When the base circle of the first cam 6210 contacts the first protruding rod 6202, the flange of the second cam 6211 contacts the second protruding rod 6206, and the second sieve plate 6205 hits the sand on the bottom of the first sieve plate 6201 to crush the sand that is bonded together, so that the size of the sand attached to the surface of the wax mold is consistent. The second spring drives the second guide rod 6207 to vibrate up and down, and the second guide rod 6207 drives the second sieve plate 6205 to vibrate up and down. The accumulated sand falls into the sand collecting box 61 through the sieve holes. When the sand spreading is completed, the dial block of the dial 32 enters the groove of the groove wheel 33, so that the wax mold rotates to a dry place, and the heater 48 is controlled to start. The wind enters the heater 48 through the vertical pipe 44 to form hot air. The hot air enters the hollow rotating shaft and blows air to the wax mold through the air outlet. The second motor 4304 is controlled to start, and the second motor 4304 drives the nozzle 4310 to move to dry the wax mold.

[0033] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A silica sol shell making intelligent casting device, characterized in that: The intelligent casting device comprises a workbench (1), a support plate (2) being installed on one side of the workbench (1), a rotating device (3) being installed on the support plate (2), a cleaning device (4), a sizing device (5) and a sanding device (6) being installed on one side of the rotating device (3), the cleaning device (4), the sizing device (5) and the sanding device (6) being installed on the workbench (1), and the cleaning device (4) being located between the sizing device (5) and the sanding device (6).

2. The intelligent casting device for making shells by silica sol according to claim 1, characterized in that: The rotating device (3) comprises a first motor (31), the first motor (31) being mounted on a support plate (2), a first rotating shaft being mounted on an output shaft of the first motor (31), the first rotating shaft rotating on the support plate (2), a dial (32) and a first gear being mounted on the first rotating shaft, a support column (34) being mounted on one side of the support plate (2), one end of the support column (34) being rotatably connected to a groove wheel (33), the groove wheel (33) being matched with the dial (32), and one side of the groove wheel (33) being mounted with a A connecting column, one end of which is mounted with a rotating disk (37), a sleeve is rotatably connected to the connecting column, a second gear and a third gear are mounted on the sleeve, a first belt (35) is mounted on the first gear and the second gear, a partition (38) is mounted on one side of the rotating disk (37), a clamp (39) is rotatably connected to the rotating disk (37), a fourth gear is mounted on one end of the clamp (39), a second belt (36) is mounted on the third gear and the fourth gear, and the first motor (31) is connected to a control system.

3. The intelligent casting device for silica sol shell making according to claim 2 is characterized in that: The cleaning device (4) comprises an L-shaped plate (45), a recovery liquid tank (41) is installed on one side of the L-shaped plate (45), the recovery liquid tank (41) is installed on the workbench (1), a bottom plate (42) is installed on one side of the recovery liquid tank (41), a liquid spraying device (43) and a vertical pipe (44) are installed on the bottom plate (42), a first slide rail (46) is installed on one side of the L-shaped plate (45), a vertical pipe (44) is installed on the bottom plate (42), a horizontal pipe (47) is installed on one side of the vertical pipe (44), a heater (48) is installed at one end of the vertical pipe (44), a connecting pipe is installed at one end of the heater (48), the connecting pipe is connected to the liquid spraying device (43) through a pipeline, and the heater (48) is connected to a control system.

4. The intelligent casting device for making shells by silica sol according to claim 3, characterized in that: The recovery liquid tank (41) comprises a liquid collecting tank (4101), a liquid storage tank (4103) is installed on one side of the liquid collecting tank (4101), a through hole (4102) is provided at the bottom of the liquid collecting tank (4101), a filter plate (4104) is installed in the liquid storage tank (4103), and a second rotating shaft (4106) and a third rotating shaft (4108) are rotatably connected on the inner wall of the liquid storage tank (4103) close to the filter plate (4104), the second rotating shaft (4106) is located above the third rotating shaft (4108), and the second rotating shaft (4106) is provided with a filter plate (4104) on the inner wall of the liquid storage tank (4103) close to the filter plate (4104). A driving fan (4105) and a first pinion (4107) are installed, a drainage fan (4111) and a second pinion (4109) are installed on the third rotating shaft (4108), a guide tube is installed in the through hole (4102), and the guide tube is located above the fan blades of the driving fan (4105), a third belt (4110) is installed on the first pinion (4107) and the second pinion (4109), and a fan (4112) is installed on the other end of the second rotating shaft (4106), and the fan (4112) is located inside the transverse tube (47).

5. The intelligent casting device for making shells by silica sol according to claim 4, characterized in that: The liquid spraying device (43) comprises a vertical plate (4301), a support block (4302) is installed on one side of the vertical plate (4301), an upper plate (4303) and a lower plate are installed on the other side of the vertical plate (4301), a second motor (4304) is installed on one end of the upper plate (4303), a screw rod (4305) is installed on the output shaft of the second motor (4304), one end of the screw rod (4305) is installed on the lower plate, and a first mounting block (4303) is installed between the upper plate (4303) and the lower plate. 7) and a second mounting block (4308), an upper rack is mounted on one side of the first mounting block (4307), a lower rack is mounted on one side of the second mounting block (4308), a slider (4306) is slidably connected to the screw rod (4305), a transfer block (4309) is mounted on one side of the slider (4306), a nozzle (4310) is mounted on one side of the transfer block (4309), a large nozzle hole, a small nozzle hole and an air outlet hole are mounted on the nozzle (4310), and a nozzle (4310) is mounted inside A switching plate (4311), wherein a small hole corresponding to the nozzle (4310) is provided on the switching plate (4311), and a liquid inlet pipe (4316) is installed on the nozzle (4310). A hollow rotating shaft is installed inside the adapter block (4309), one end of the hollow rotating shaft rotates in the air outlet hole, and a half gear (4312) is installed on the other end of the hollow rotating shaft. A first spur gear (4313) and a second spur gear (4314) are rotatably connected to one side of the adapter block (4309). The adapter block (4309) An air inlet pipe (4315) is installed on the upper part, the air inlet pipe (4315) is connected to the hollow rotating shaft through a pipe, the first spur gear (4313) is meshed with the upper rack, the second spur gear (4314) is meshed with the lower rack, a water pump (4317) is installed on the bottom plate (42), the water pump (4317) is connected to the liquid storage tank (4103) through a pipe, the water pump (4317) is connected to the liquid inlet pipe (4316) through a pipe, and the second motor (4304) and the water pump (4317) are connected to the control system.

6. The intelligent casting device for silica sol shell making according to claim 5, characterized in that: The sizing device (5) comprises a hydraulic cylinder (52), the hydraulic cylinder (52) being installed in the workbench (1), a slurry box (51) being installed on the cylinder rod of the hydraulic cylinder (52), the slurry box (51) sliding on the first slide rail (46) and the sand spreading device (6), an agitator being installed at the bottom of the slurry box (51), and the hydraulic cylinder (52) and the agitator being connected to a control system.

7. The intelligent casting device for making shells by silica sol according to claim 6, characterized in that: The sand spreading device (6) comprises a sand collecting box (61), the sand collecting box (61) being mounted on the workbench (1), a sand throwing device (62) being mounted inside the sand collecting box (61), a third motor (65) being mounted at one end of the sand throwing device (62), a fixed plate (63) being mounted at one side of the sand collecting box (61), a second slide rail (64) being mounted at one side of the fixed plate (63), the slurry box (51) sliding on the second slide rail (64), a sand pump (66) being mounted at one side of the sand collecting box (61), a sand outlet pipe (67) being mounted at one side of the sand outlet pipe (67), a sand blasting head being mounted at one side of the sand outlet pipe (67), and the third motor (65) and the sand pump (66) being connected to a control system.

8. The intelligent casting device for making shells by silica sol according to claim 7, characterized in that: The sand throwing device (62) comprises a first sieve plate (6201) and a second sieve plate (6205), a first protruding rod (6202) being installed on one side of the first sieve plate (6201), the first protruding rod (6202) sliding on the second sieve plate (6205), a first guide rod (6203) being installed on the other side of the first sieve plate (6201), a first limiting block being installed on one end of the first guide rod (6203), a first fixing block (6204) and a second fixing block (6208) being installed on the inner wall of the sand collecting box (61), the first guide rod (6203) sliding in the first fixing block (6204), a first spring being installed between the first sieve plate (6201) and the first fixing block (6204), a second protruding rod (6206) and a second guide rod (6207) being installed on one side of the second sieve plate (6205), the second A second limit block is installed at one end of the guide rod (6207), the second guide rod (6207) slides in the second fixed block (6208), a second spring is installed between the second fixed block (6208) and the second screen plate (6205), a fourth rotating shaft (6209) is rotatably connected to the sand collecting box (61), one end of the fourth rotating shaft (6209) is installed on the third motor (65), a first cam (6210) and a second cam (6211) are installed on the fourth rotating shaft (6209), the first cam (6210) and the first convex rod (6202) cooperate with each other, the second cam (6211) and the second convex rod (6206) cooperate with each other, the size of the first cam (6210) is larger than the size of the second cam (6211), the size of the sieve hole of the first sieve plate (6201) is larger than the size of the sieve hole of the second sieve plate (6205).

9. A silica sol shell casting process, characterized in that: Using a silica sol shell making intelligent casting device as described in any one of claims 1 to 8, the method comprises the following steps: S1. Clean the wax model; S2, sizing; S3, sand spreading; S4. Drying.

10. The silica sol shell casting process according to claim 9, characterized in that: The S1 comprises the following steps: S101, control the water pump (4317) to start, the water pump (4317) pumps the cleaning liquid in the liquid storage tank (4103) into the nozzle (4310) through the liquid inlet pipe (4316), the cleaning liquid is sprayed out from the large spray hole through the switching plate (4311), the second motor (4304) is controlled to start, the second motor (4304) drives the screw rod (4305) to rotate, the screw rod (4305) drives the slider (4306) to move in the direction close to the lower plate, and the slider (4306) drives the adapter block (4304) to move. 09) moves, the adapter block (4309) drives the nozzle (4310) to move, removes the oil and dust on the surface of the wax mold, the lower rack drives the second spur gear (4314) to rotate, the second spur gear (4314) drives the half gear (4312) to rotate, the half gear (4312) drives the hollow shaft to rotate, the hollow shaft drives the switching plate (4311) to rotate, at this time the half gear (4312) is meshed with the first spur gear (4313), and the cleaning liquid is sprayed out from the small spray hole of the nozzle (4310); S102, control the output shaft of the second motor (4304) to reverse, the second motor (4304) drives the lead screw (4305) to reverse, the lead screw (4305) drives the slider (4306) to move away from the lower plate, the spray speed of the cleaning liquid becomes faster, the surface of the wax mold is lightly etched, the upper rack drives the first spur gear (4313) to rotate, the first spur gear (4313) drives the half gear (4312) to rotate, the half gear (4312) drives the hollow shaft to rotate, the hollow shaft drives the switching plate (4311) to rotate, at this time the half gear (4312) is meshed with the second spur gear (4314), and the cleaning liquid is sprayed out from the large spray hole of the nozzle (4310); S103, the cleaning liquid in the liquid collecting tank (4101) flows from the through hole (4102) to the blades of the driving fan (4105), the cleaning liquid drives the driving fan (4105) to rotate, the driving fan (4105) drives the second rotating shaft (4106) to rotate, the second rotating shaft (4106) drives the first pinion (4107) and the fan (4112) to rotate, the first pinion (4107) drives the third belt (4110) to rotate, the third belt (4110) drives the second pinion (4109) to rotate, the second pinion (4109) drives the third rotating shaft (4108) to rotate, the third rotating shaft (4108) drives the drainage fan (4111) to rotate, and the fan (4112) blows air into the horizontal pipe (47); S104, when cleaning is finished, the water pump (4317) is controlled to stop, the heater (48) is controlled to start, wind enters the heater (48) through the vertical pipe (44) to form hot wind, the hot wind enters the hollow rotating shaft, and blows air to the wax model through the air outlet, the second motor (4304) is controlled to start, and the second motor (4304) drives the nozzle (4310) to move to dry the wax model; The S2 comprises the following steps: S201, the dial (32) drives the groove wheel (33) to rotate, the groove wheel (33) drives the connecting column to rotate, the connecting column drives the first gear to drive the rotating disk (37) to rotate, the rotating disk (37) drives the clamp (39) and the partition (38) to rotate, the clamp (39) drives the wax model to rotate to the slurry application position, the cylinder rod of the hydraulic cylinder (52) is controlled to extend, the cylinder rod drives the slurry box (51) to slide on the first slide rail (46) and the second slide rail (64) in the direction close to the wax model, the agitator is controlled to start, and when the wax model is immersed in the slurry, the cylinder rod of the hydraulic cylinder (52) is controlled to be retracted, and the cylinder rod drives the slurry box (51) to return to the initial position; The S3 comprises the following steps: S301, the dial (32) drives the groove wheel (33) to rotate, so that the wax model rotates to the sand spreading position, and the sand pump (66) is controlled to start, and the sand pump (66) pumps the sand in the sand collecting box (61) into the sand outlet pipe (67), and sprays the sand onto the wax model through the sand blasting head, so that the wax model is sanded for the first time, and the sand falls onto the first screen plate (6201); S302, controlling the third motor (65) to start, the third motor (65) drives the fourth rotating shaft (6209) to rotate, the fourth rotating shaft (6209) drives the first cam (6210) and the second cam (6211) to rotate, the first cam (6210) drives the first convex rod (6202) to move, the first convex rod (6202) drives the first sieve plate (6201) to move, the second cam (6211) drives the second convex rod (6206) to move, the second convex rod (6206) The second screen plate (6205) is driven to move. When the flange of the first cam (6210) contacts the first convex rod (6202), the base circle of the second cam (6211) contacts the second convex rod (6206). The first screen plate (6201) throws sand onto the wax mold. The first spring drives the first guide rod (6203) to vibrate up and down. The first guide rod (6203) drives the first screen plate (6201) to vibrate up and down. The accumulated sand falls onto the second screen plate (6205) through the screen holes. S303, when the base circle of the first cam (6210) contacts the first convex rod (6202), the flange of the second cam (6211) contacts the second convex rod (6206), the second screen plate (6205) impacts the sand on the bottom of the first screen plate (6201), the second spring drives the second guide rod (6207) to vibrate up and down, the second guide rod (6207) drives the second screen plate (6205) to vibrate up and down, and the accumulated sand falls into the sand collecting box (61) through the screen holes; The S4 comprises the following steps: S401, the dial (32) drives the groove wheel (33) to rotate, so that the wax model is rotated to a dry position, the heater (48) is controlled to start, and hot air is blown to the wax model through the air outlet, and the second motor (4304) is controlled to start, and the second motor (4304) drives the nozzle (4310) to move, so as to dry the wax model.

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