Investment casting water glass shell making device and method

Abstract

The invention relates to the technical field of investment casting shell making, and discloses an investment casting water glass shell making device which comprises a box body, a mixing cavity and a processing cavity, the mixing cavity and the processing cavity are formed in the box body, the top of the box body is connected with a first conveying pipe communicating with the mixing cavity, and the top of the box body is connected with a second conveying pipe communicating with the processing cavity; a conveying assembly used for conveying materials is arranged in the treatment cavity, and a push plate is slidably connected into the mixing cavity. The water glass coating stirring device can effectively mix and stir raw materials of all components of a water glass coating, can remove the water glass coating attached to the stirring assembly, is convenient to use, is simple in use method, can bring convenience to workers for overhauling and maintaining the stirring assembly, and is high in working performance.

Description

Technical Field

[0001] The invention relates to the technical field of investment casting shell making, and in particular to an investment casting water glass shell making device and method. Background Art

[0002] Investment casting is a precision casting method, also known as lost wax casting. It includes processes such as wax pressing, wax repairing, tree assembly, slurry dipping, wax melting, pouring molten metal and post-processing. Water glass shell making is a key process in investment casting. It involves applying water glass paint on the wax model, which forms a shell after hardening and drying. This shell will then be used to pour molten metal to form a casting. Before applying the water glass paint to the wax model, the corresponding equipment is needed to mix and stir the various components of the water glass paint to ensure the uniformity of the paint.

[0003] Although the existing shell making device can mix and stir the various component raw materials of the water glass coating, during the long-term operation, part of the water glass coating often adheres to the stirring component inside the shell making device. In order to prevent the water glass coating adhered to the stirring component from affecting the subsequent work of the shell making device, the staff is required to disassemble and clean the stirring component inside the equipment. This process is not only time-consuming and labor-intensive, but also affects the normal operation of the mixing equipment and the working performance is poor. For this reason, we propose an investment casting water glass shell making device and method. Summary of the invention

[0004] In order to solve the technical problem of poor working performance of an investment casting water glass shell making device, the present invention provides an investment casting water glass shell making device and method.

[0005] The present invention is implemented by the following technical scheme: an investment casting water glass shell making device comprises a box body and a mixing chamber and a processing chamber opened on the box body, the top of the box body is connected with a feeding pipe 1 connected to the mixing chamber, the top of the box body is connected with a feeding pipe 2 connected to the processing chamber, the processing chamber is provided with a conveying component for conveying materials, a push plate is slidably connected inside the mixing chamber, the push plate is provided with a rotating hole, a rotating block is rotatably connected inside the rotating hole, a through hole is provided in the middle of the rotating block, a driving column is slidably penetrated inside the through hole, a plurality of driving grooves are provided on the outer wall of the driving column, a driving block fixed on the inner wall of the through hole is slidably connected inside the driving groove, a plurality of mounting holes are provided in the rotating block, a stirring rod 1 is slidably inserted inside the mounting hole, a stirring rod 2 is provided at one end of the stirring rod 1 close to the processing chamber, and the stirring rod 2 A linkage groove is provided at one end of the mixing rod second close to the stirring rod one, and a linkage block is slidably inserted inside the linkage groove, and the end of the linkage block located outside the linkage groove is fixed to one end of an adjacent stirring rod, and the end of the linkage block located inside the linkage groove is fixed with a plurality of connecting springs whose other ends are fixed to the inner wall of the linkage groove. A driving sleeve is embedded on the top of the push plate, and a screw rod is passed through the internal thread of the driving sleeve. Through the operation of the above components, the sepiolite clinker powder and the water glass solution can be mixed and stirred, and the surface coating prepared in the mixing chamber can be pressed into the discharge pipe, so as to increase the discharge rate of the discharge pipe, so as to avoid the surface coating prepared in the mixing chamber from being retained in the mixing chamber, and the water glass coating attached to the stirring rod one and the stirring rod two can be removed, so as to avoid the staff from disassembling and cleaning the stirring rod one and the stirring rod two, and it is easy to use.

[0006] As a further improvement of the above scheme, annular grooves are provided on the inner walls at both ends of the mixing chamber, and the divergent ends of the stirring rod one and the stirring rod two respectively slide inside the adjacent annular grooves. The stirring rod one and the stirring rod two can be supported by the annular grooves, thereby improving the stability of the stirring rod one and the stirring rod two.

[0007] As a further improvement of the above scheme, one end of the driving column passes through the outside of the box and is transmission-connected to the motor. A fixing plate fixed to the outside of the box is fixed to the outside of the motor. The end of the driving column away from the motor is rotatably connected to the inner wall of the mixing chamber. One end of the screw rod is rotatably connected to the inner wall of the mixing chamber. The other end of the screw rod passes through the outside of the box and is rotationally connected to the inner wall of the fixing plate. The driving column and the outer wall of the screw rod located outside the box are fixedly sleeved with a transmission wheel. A transmission belt that cooperates with the transmission wheel is provided on the outside of the transmission wheel. The driving column can be driven to rotate by the operation of the motor. When the driving column rotates, the screw rod can be driven to rotate by the transmission cooperation between the transmission wheel and the transmission belt.

[0008] As a further improvement of the above scheme, a movable door is hinged on the outer side of the box body, and a sealing ring is provided on the outer side of the movable door. By opening the movable door, the user can conveniently inspect and maintain the components inside the box body, and the sealing ring can increase the sealing performance of the device. When it is necessary to detach the stirring rod 1 and the stirring rod 2 from the device and inspect and maintain the stirring rod 1 and the stirring rod 2, the driving sleeve and the push plate can be driven to move, and the rotating block can be driven to move by rotating the screw rod and cooperating with the screw rod and the driving sleeve. When the rotating block contacts the inner wall of the mixing chamber, the stirring rod 1 and the stirring rod 2 can be pulled, and the stirring rod 1 and the stirring rod 2 can be driven to move toward each other through the sliding cooperation of the linkage groove and the linkage block. When the stirring rod 1 or the stirring rod 2 is separated from the rotating block, the stirring rod 1 and the stirring rod 2 are detached from the device, and the user can inspect and maintain the stirring rod 1 and the stirring rod 2.

[0009] As a further improvement of the above scheme, the conveying assembly includes a carrier plate fixed inside the processing chamber, a screen fixed inside the processing chamber is provided above the carrier plate, a conveying port cooperating with the carrier plate is provided between the carrier plate and the screen, the conveying port is opened on the inner wall between the mixing chamber and the processing chamber, a closing block is slidably connected inside the conveying port, a pushing block sliding inside the processing chamber is provided on the top of the carrier plate, a plurality of fixing blocks are fixed between the closing block and the pushing block, a loading hole 1 is opened on the push plate, a connecting rod 1 is slidably penetrated inside the loading hole 1, one end of the connecting rod 1 is fixed on the closing block, and a stopper 1 having a diameter larger than the diameter of the loading hole 1 is fixed on the other end of the connecting rod 1, and a plurality of connecting blocks connected to the processing chamber are provided on the box body. A second loading hole is connected through the second loading hole, and a connecting rod is slidably penetrated inside the second loading hole, one end of the connecting rod is fixed on the pushing block, and the other end of the connecting rod is fixed with a stop block whose diameter is larger than the aperture of the second loading hole. The top side of the screen is rotatably connected with a transmission shaft, and the end of the transmission shaft away from the screen is rotatably connected to the inner wall of the top of the processing chamber, and a plurality of toggle blocks in contact with the screen are fixed on the outer wall of the transmission shaft, and a gear is fixedly sleeved on the outer wall of the transmission shaft, and a rack plate meshing with the gear is provided on one side of the gear, and the rack plate is fixed on the push plate. Through the operation of the above components, the sepiolite clinker powder can be screened and processed, and the sepiolite clinker powder on the screen can be prompted to pass through the sieve holes of the screen, thereby improving the screening efficiency of the screen for the sepiolite clinker powder.

[0010] As a further improvement of the above scheme, the external movable sleeve of the second connecting rod located outside the box body is provided with a reset spring, one end of the reset spring is fixed on the second block, and the other end of the reset spring is fixed on the box body. Through the elasticity of the reset spring, the displaced closing block and the pushing block can be pulled to perform reset displacement.

[0011] As a further improvement of the above scheme, a sliding hole 1 is provided on the inner wall between the mixing chamber and the processing chamber, and a sliding hole 2 is provided on the box body which is connected to the processing chamber. The rack plate slides with the sliding hole 1 and the sliding hole 2, and the rack plate can be flexibly displaced through the sliding hole 1 and the sliding hole 2.

[0012] As a further improvement of the above solution, a discharge pipe connected to the processing chamber is connected to the bottom of one end of the box body, and a butterfly valve is installed on the discharge pipe. When the butterfly valve is opened, the paint inside the processing chamber can be discharged through the discharge pipe.

[0013] As a further improvement of the above scheme, an annular groove is provided on the inner wall of the rotating hole, and a plurality of stabilizing blocks fixed on the rotating block are slidably connected inside the annular groove. The rotating block inside the rotating hole can be limited by the annular groove and the stabilizing blocks, thereby improving the stability of the rotating block.

[0014] A method for using an investment casting water glass shell making device comprises the following steps:

[0015] S1: conveying the water glass solution to the inside of the mixing chamber through the conveying pipe, and conveying the sepiolite clinker powder to the inside of the processing chamber through the conveying pipe 2;

[0016] S2: conveying a sufficient amount of sepiolite clinker powder into the mixing chamber through the conveying component, and mixing the water glass solution and the sepiolite clinker powder in the mixing chamber by rotating the stirring rod 1 and the stirring rod 2 in the mixing chamber;

[0017] S3: discharging the prepared surface coating through a discharge pipe;

[0018] S4: Apply the prepared topcoat paint on the wax model, sprinkle the first sand layer, and air dry;

[0019] S5: Apply transition layer paint on the first sand layer, sprinkle the second sand layer, and air dry;

[0020] S6: Apply reinforcement layer paint several times on the second sand layer, sprinkle the third sand layer, and let it air dry.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention can effectively mix and stir the raw materials of each component of the water glass paint, and can remove the water glass paint attached to the stirring component, so that the staff can avoid disassembling and cleaning the stirring component. It is easy to use, not only the method of use is simple, but also the staff can conveniently inspect and maintain the stirring component, and the raw materials of the water glass paint can be screened.

[0023] 2. The present invention can screen the raw materials of water glass paint, remove the sepiolite clinker powder that does not meet the use standards, and can promote the raw materials on the screening component to pass through the sieve holes of the screening component, thereby improving the screening efficiency of the screening component for the raw materials, and can increase the discharge rate of the device, and can avoid the surface coating from being retained inside the device, with high working performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of an investment casting water glass shell making device;

[0025] Figure 2 A schematic diagram of a transfer block in an investment casting water glass shell making device;

[0026] Figure 3 A schematic diagram of an investment casting water glass shell making device;

[0027] Figure 4 A schematic diagram of a processing chamber in an investment casting water glass shell making device;

[0028] Figure 5 It is a structural schematic diagram of an investment casting water glass shell making device;

[0029] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0030] Figure 7 for Figure 5 The enlarged structural diagram at B in the middle;

[0031] Figure 8 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0032] Description of main symbols:

[0033] 1. Box body; 2. Mixing chamber; 3. Processing chamber; 4. Push plate; 5. Feed pipe 1; 6. Feed pipe 2; 7. Discharge pipe; 8. Rotary hole; 9. Rotary block; 10. Drive column; 11. Drive groove; 12. Stirring rod 1; 13. Stirring rod 2; 14. Linking groove; 15. Linking block; 16. Connecting spring; 17. Fixed plate; 18. Drive sleeve; 19. Screw; 20. Carrier plate; 21. Screen; 22. Closing block; 23. Push block; 24. Fixed block; 25. Block 1; 26. Linking rod 1; 27. Linking rod 2; 28. Toggle block; 29. ​​Gear; 30. Rack plate; 31. Delivery port. DETAILED DESCRIPTION

[0034] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0035] Embodiment 1:

[0036] Combination Figure 1 , Figure 2 , Figure 3 and Figure 5 , a device for making shells of water glass by investment casting in this embodiment comprises a box body 1 and a mixing chamber 2 and a processing chamber 3 opened on the box body 1, a material conveying pipe 5 connected to the mixing chamber 2 is connected to the top of the box body 1, a material conveying pipe 6 connected to the processing chamber 3 is connected to the top of the box body 1, a conveying assembly for conveying materials is arranged in the processing chamber 3, a push plate 4 is slidably connected inside the mixing chamber 2, a rotating hole 8 is opened on the push plate 4, a rotating block 9 is rotatably connected inside the rotating hole 8, a through hole is opened in the middle of the rotating block 9, a driving column 10 is slidably penetrated inside the through hole, a plurality of driving grooves 11 are opened on the outer wall of the driving column 10, a driving block fixed on the inner wall of the through hole is slidably connected inside the driving groove 11, a plurality of mounting holes are opened on the rotating block 9, and the mounting hole is slidably connected inside the rotating block 9. A stirring rod 12 is inserted, and a stirring rod 2 13 is provided at one end of the stirring rod 12 close to the processing chamber 3. A linkage groove 14 is opened at one end of the stirring rod 2 13 close to the stirring rod 12. A linkage block 15 is slidably inserted inside the linkage groove 14. The linkage groove 14 is a rectangular groove, and the linkage block 15 is a rectangular block. The end of the linkage block 15 located outside the linkage groove 14 is fixed to the end of the adjacent stirring rod 12, and the end of the linkage block 15 located inside the linkage groove 14 is fixed with a plurality of connecting springs 16 whose other ends are fixed to the inner wall of the linkage groove 14. A driving sleeve 18 is embedded on the top of the push plate 4, and a screw rod 19 is passed through the internal thread of the driving sleeve 18. The bottom of one end of the box body 1 is connected to a discharge pipe 7 communicated with the processing chamber 3, and a butterfly valve is installed on the discharge pipe 7.

[0037] The implementation principle of an investment casting water glass shell making device and method in the embodiment of the present application is as follows: when it is necessary to mix and stir the various component raw materials of the water glass coating, the water glass solution can be conveyed to the interior of the mixing chamber 2 through the feed pipe 1 5, and the sepiolite clinker powder can be conveyed to the interior of the processing chamber 3 through the feed pipe 2 6, and the sepiolite clinker powder in the processing chamber 3 can be conveyed to the interior of the mixing chamber 2 through the conveying component, and then the driving column 10 is driven to rotate back and forth in both directions, and the driving block and the driving groove 11 cooperate to drive the rotating block 9 to rotate, and the stirring rod 1 12 is driven to rotate, and the connecting block 15 and the connecting groove 14 cooperate to drive the stirring rod 2 13 to rotate. At this time, the sepiolite clinker powder and the water glass solution in the mixing chamber 2 can be mixed and stirred by the rotating stirring rod 1 12, the connecting block 15 and the stirring rod 2 13. When the mixing chamber 2 is After the mixture of the sepiolite clinker powder and the water glass solution is completed, the butterfly valve can be rotated to open the discharge pipe 7. At this time, the surface coating prepared in the mixing chamber 2 can be discharged through the discharge pipe 7. When the discharge pipe 7 discharges the surface coating prepared in the mixing chamber 2, the drive sleeve 18 and the push plate 4 are driven to move by the rotation of the screw rod 19 and the cooperation of the screw rod 19 and the drive sleeve 18. At this time, the surface coating prepared in the mixing chamber 2 can be pressed into the discharge pipe 7 by the displaced push plate 4, so as to increase the discharge rate of the discharge pipe 7 and avoid the surface coating prepared in the mixing chamber 2 from being retained in the mixing chamber 2. When the push plate 4 is displaced, the water glass coating attached to the stirring rod 12 and the stirring rod 2 13 can be removed by the displaced push plate 4, so as to avoid the staff from disassembling and cleaning the stirring rod 12 and the stirring rod 2 13, which is convenient to use.

[0038] Annular grooves are provided on the inner walls at both ends of the mixing chamber 2, and the divergent ends of the stirring rod 12 and the stirring rod 2 13 slide in the adjacent annular grooves respectively. The annular grooves can support the stirring rod 12 and the stirring rod 2 13, thereby improving the stability of the stirring rod 12 and the stirring rod 2 13.

[0039] One end of the driving column 10 passes through the outside of the box body 1 and is connected to a motor for transmission. The motor is a forward and reversible stepping motor. A fixing plate 17 fixed to the outside of the box body 1 is fixed on the outside of the motor. The end of the driving column 10 away from the motor is rotatably connected to the inner wall of the mixing chamber 2. One end of the screw rod 19 is rotatably connected to the inner wall of the mixing chamber 2. The other end of the screw rod 19 passes through the outside of the box body 1 and is rotatably connected to the inner wall of the fixing plate 17. The outer walls of the driving column 10 and the screw rod 19 located outside the box body 1 are fixedly sleeved with a transmission wheel. The outside of the transmission wheel is provided with a transmission belt that cooperates with the transmission wheel. The driving column 10 can be driven to rotate by the operation of the motor. When the driving column 10 rotates, the screw rod 19 can be driven to rotate by the transmission cooperation of the transmission wheel and the transmission belt.

[0040] Embodiment 2:

[0041] Combination Figure 7 The present embodiment is further improved on the basis of the embodiment 1 in that: a movable door is hinged on the outer side of the box body 1, and a sealing ring is arranged on the outer side of the movable door. By opening the movable door, the user can conveniently inspect and maintain the components inside the box body 1. The sealing ring can increase the sealing performance of the device. When it is necessary to detach the stirring rod 12 and the stirring rod 2 13 from the device and inspect and maintain the stirring rod 12 and the stirring rod 2 13, the screw rod 19 can be rotated, and the screw rod 19 and the driving sleeve 18 can cooperate to work. The driving sleeve 18 and the push plate 4 are displaced, driving the rotating block 9 to displace. When the rotating block 9 contacts the inner wall of the mixing chamber 2, the stirring rod 12 and the stirring rod 2 13 can be pulled, and the sliding cooperation of the linkage groove 14 and the linkage block 15 can drive the stirring rod 12 and the stirring rod 2 13 to displace toward each other. When the stirring rod 12 or the stirring rod 2 13 is separated from the rotating block 9, the stirring rod 12 and the stirring rod 2 13 are detached from the device, and the user can inspect and maintain the stirring rod 12 and the stirring rod 2 13.

[0042] Embodiment 3:

[0043] Combination Figure 4 , Figure 6 and Figure 8The present embodiment is further improved on the basis of the embodiment 1 in that: the conveying assembly comprises a carrier plate 20 fixed inside the processing chamber 3, a screen 21 fixed inside the processing chamber 3 is provided above the carrier plate 20, a conveying port 31 matched with the carrier plate 20 is provided between the carrier plate 20 and the screen 21, the conveying port 31 is provided on the inner wall between the mixing chamber 2 and the processing chamber 3, a closing block 22 is slidably connected inside the conveying port 31, a pushing block 23 sliding inside the processing chamber 3 is provided on the top of the carrier plate 20, a plurality of fixing blocks 24 are fixed between the closing block 22 and the pushing block 23, a loading hole 1 is provided on the push plate 4, a connecting rod 1 26 is slidably penetrated inside the loading hole 1, and the connecting rod 1 26 is slidably penetrated inside the loading hole 1. One end is fixed on the closing block 22, and the other end of the linkage rod 26 is fixed with a stopper 25 whose diameter is larger than the aperture of the loading hole 1. The box body 1 is provided with a plurality of loading holes 2 connected with the processing chamber 3, and a linkage rod 27 is slidably penetrated inside the loading hole 2. One end of the linkage rod 27 is fixed on the pushing block 23, and the other end of the linkage rod 27 is fixed with a stopper 2 whose diameter is larger than the aperture of the loading hole 2. The top side of the screen 21 is rotatably connected with a transmission shaft, and one end of the transmission shaft away from the screen 21 is rotatably connected to the inner wall of the top of the processing chamber 3. The outer wall of the transmission shaft is fixed with a plurality of toggle blocks 28 in contact with the screen 21, and the outer wall of the transmission shaft is fixedly sleeved with a gear 29, and one side of the gear 29 is provided with a gear 29 meshed rack plate 30, rack plate 30 is fixed on the push plate 4, when the feeding pipe 26 transports the sepiolite clinker powder to the inside of the processing chamber 3, the sepiolite clinker powder entering the processing chamber 3 will fall on the screen 21, and the sepiolite clinker powder can be screened by the screen 21 to remove the sepiolite clinker powder that does not meet the use standards. At this time, the sepiolite clinker powder that meets the use standards will fall to the top of the carrier plate 20 through the sieve holes of the screen 21, and then the drive sleeve 18 and the push plate 4 can be driven to move by the rotation of the screw rod 19 and the cooperation of the screw rod 19 and the drive sleeve 18, and the closing block 22 can be driven by the cooperation of the stopper 25 and the connecting rod 26. It moves, driving the fixed block 24 and the pushing block 23 to move. When the displaced closing block 22 opens the delivery port 31, the sepiolite clinker powder located on the top of the carrier plate 20 will be pushed into the mixing chamber 2 by the displaced pushing block 23. When the push plate 4 moves, it will drive the rack plate 30 to move. The displaced rack plate 30 will drive the gear 29 and the transmission shaft to rotate. At this time, the rotating transmission shaft can drive the toggle block 28 to rotate. At this time, the rotating toggle block 28 can be used to toggle the sepiolite clinker powder on the screen 21, so that the sepiolite clinker powder on the screen 21 passes through the sieve holes of the screen 21, thereby improving the screening efficiency of the screen 21 for the sepiolite clinker powder.

[0044] A return spring is provided on the outer movable sleeve of the linkage rod 27 outside the box body 1, one end of the return spring is fixed on the stop block 2, and the other end of the return spring is fixed on the box body 1. Through the elasticity of the return spring, the displaced closing block 22 and the pushing block 23 can be pulled to perform return displacement.

[0045] A sliding hole 1 is provided on the inner wall between the mixing chamber 2 and the processing chamber 3, and a sliding hole 2 is provided on the box body 1 which is connected to the processing chamber 3. The rack plate 30 slides with the sliding hole 1 and the sliding hole 2, and the rack plate 30 can be flexibly displaced through the sliding hole 1 and the sliding hole 2.

[0046] An annular groove is provided on the inner wall of the rotating hole 8, and a plurality of stabilizing blocks fixed on the rotating block 9 are slidably connected inside the annular groove. The rotating block 9 inside the rotating hole 8 can be limited by the annular groove and the stabilizing blocks, thereby improving the stability of the rotating block 9.

[0047] Embodiment 4:

[0048] A method for using an investment casting water glass shell making device comprises the following steps:

[0049] S1: conveying the water glass solution to the interior of the mixing chamber 2 through the conveying pipe 5, and conveying the sepiolite clinker powder to the interior of the processing chamber 3 through the conveying pipe 2 6;

[0050] S2: A sufficient amount of sepiolite clinker powder is transported to the interior of the mixing chamber 2 by the transport component, and the water glass solution and the sepiolite clinker powder in the mixing chamber 2 are mixed by the rotation of the stirring rod 12 and the stirring rod 2 13 in the mixing chamber 2;

[0051] S3: discharging the prepared surface coating through the discharge pipe 7;

[0052] S4: Apply the prepared topcoat paint on the wax model, sprinkle the first sand layer, and air dry;

[0053] S5: Apply transition layer paint on the first sand layer, sprinkle the second sand layer, and air dry;

[0054] S6: Apply reinforcement layer paint several times on the second sand layer, sprinkle the third sand layer, and let it air dry.

[0055] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. An investment casting water glass shell making device, comprising a box body and a mixing chamber and a processing chamber opened on the box body, characterized in that: The top of the box body is connected with a material conveying pipe 1 connected with the mixing chamber, and the top of the box body is connected with a material conveying pipe 2 connected with the processing chamber, and the processing chamber is provided with a conveying component for conveying materials, and a push plate is slidably connected inside the mixing chamber, and the push plate is provided with a rotating hole, and a rotating block is rotatably connected inside the rotating hole, and a through hole is provided in the middle of the rotating block, and a driving column is slidably penetrated inside the through hole, and a plurality of driving grooves are provided on the outer wall of the driving column, and a driving block fixed on the inner wall of the through hole is slidably connected inside the driving groove, and a plurality of mounting holes are provided on the rotating block, and a stirring rod 1 is slidably inserted inside the mounting hole, and a stirring rod 2 is provided at one end of the stirring rod 1 close to the processing chamber, and a linkage groove is provided at one end of the stirring rod 2 close to the stirring rod 1, and a linkage block is slidably inserted inside the linkage groove, and the end of the linkage block located outside the linkage groove is fixed to one end of an adjacent stirring rod, and a plurality of connecting springs whose other ends are fixed on the inner wall of the linkage groove are fixed to the end of the linkage block located inside the linkage groove, and a driving sleeve is embedded in the top of the push plate, and a screw rod is penetrated through the internal thread of the driving sleeve.

2. The investment casting water glass shell making device according to claim 1, characterized in that: Annular grooves are formed on the inner walls of the two ends of the mixing chamber, and the divergent ends of the stirring rod 1 and the stirring rod 2 slide inside the adjacent annular grooves respectively.

3. The investment casting water glass shell making device according to claim 1, characterized in that: One end of the driving column passes through the outside of the box and is transmission-connected to the motor. A fixing plate fixed to the outside of the box is fixed to the outside of the motor. One end of the driving column away from the motor is rotationally connected to the inner wall of the mixing chamber. One end of the screw rod is rotationally connected to the inner wall of the mixing chamber. The other end of the screw rod passes through the outside of the box and is rotationally connected to the inner wall of the fixing plate. The driving column and the outer wall of the screw rod located outside the box are fixedly sleeved with a transmission wheel, and a transmission belt cooperating with the transmission wheel is provided on the outside of the transmission wheel.

4. The investment casting water glass shell making device according to claim 1, characterized in that: A movable door is hinged on the outer side of the box body, and a sealing ring is arranged on the outer side of the movable door.

5. The investment casting water glass shell making device according to claim 1, characterized in that: The conveying assembly includes a carrier plate fixed inside the processing chamber, a screen fixed inside the processing chamber is provided above the carrier plate, a conveying port matched with the carrier plate is provided between the carrier plate and the screen, the conveying port is opened on the inner wall between the mixing chamber and the processing chamber, a closing block is slidably connected inside the conveying port, a pushing block sliding inside the processing chamber is provided on the top of the carrier plate, a plurality of fixing blocks are fixed between the closing block and the pushing block, a loading hole 1 is opened on the push plate, a connecting rod 1 is slidably penetrated inside the loading hole 1, one end of the connecting rod 1 is fixed on the closing block, and a connecting rod with a diameter greater than A stopper with a diameter larger than the diameter of the loading hole is fixed on the other end of the connecting rod. A transmission shaft is rotatably connected to the top side of the screen, and the end of the transmission shaft away from the screen is rotatably connected to the inner wall of the top of the processing chamber. A plurality of toggle blocks contacting the screen are fixed to the outer wall of the transmission shaft, and a gear is fixedly sleeved on the outer wall of the transmission shaft. A rack plate meshing with the gear is provided on one side of the gear, and the rack plate is fixed to the push plate.

6. The investment casting water glass shell making device according to claim 5, characterized in that: A return spring is arranged on the outer movable sleeve of the second linkage rod located outside the box body, one end of the return spring is fixed on the second stopper, and the other end of the return spring is fixed on the box body.

7. The investment casting water glass shell making device according to claim 5, characterized in that: A sliding hole 1 is provided on the inner wall between the mixing chamber and the processing chamber, a sliding hole 2 communicating with the processing chamber is provided on the box body, and the rack plate is slidably matched with the sliding hole 1 and the sliding hole 2.

8. The investment casting water glass shell making device according to claim 1, characterized in that: A discharge pipe communicating with the processing chamber is connected to the bottom of one end of the box body, and a butterfly valve is installed on the discharge pipe.

9. The investment casting water glass shell making device according to claim 1, characterized in that: An annular groove is formed on the inner wall of the rotating hole, and a plurality of stabilizing blocks fixed on the rotating block are slidably connected inside the annular groove.

10. A method for using the investment casting water glass shell making device as described in claims 1-9, characterized in that: The following steps are involved: S1: conveying the water glass solution to the inside of the mixing chamber through the conveying pipe, and conveying the sepiolite clinker powder to the inside of the processing chamber through the conveying pipe 2; S2: conveying a sufficient amount of sepiolite clinker powder into the mixing chamber through the conveying component, and mixing the water glass solution and the sepiolite clinker powder in the mixing chamber by rotating the stirring rod 1 and the stirring rod 2 in the mixing chamber; S3: discharging the prepared surface coating through a discharge pipe; S4: Apply the prepared topcoat paint on the wax model, sprinkle the first sand layer, and air dry; S5: Apply transition layer paint on the first sand layer, sprinkle the second sand layer, and air dry; S6: Apply reinforcement layer paint several times on the second sand layer, sprinkle the third sand layer, and let it air dry.

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