Castable stirrer

Abstract

The invention discloses a castable stirring machine. The device comprises a tank body, a discharging pipe is arranged on the outer side wall of the tank body, the discharging pipe is fixed to the bottom of the tank body, a base is fixed to the inner bottom face of the tank body, a first cavity is formed in the base, a motor shaft is rotationally connected into the first cavity, a lifting plate is arranged at the upper end of the motor shaft, and the lifting plate and the motor shaft are movably connected up and down; a first plug pin is installed on the top face of the lifting plate, a plug pin groove is formed in the bottom face of the rotating block, the outer side of the motor shaft is sleeved with a first bevel gear, the first bevel gear is rotationally connected with the motor shaft, a second plug pin is installed on the bottom face of the lifting plate, and a plug pin through hole is formed in the first bevel gear. One end of the discharging rotating shaft is arranged in the first cavity, a second bevel gear is fixed to the end of the discharging rotating shaft, the other end of the discharging rotating shaft is arranged in the discharging pipe, and screw flights are arranged on the side wall of the discharging rotating shaft. The castable discharging pipe has the beneficial effects that castable can be prevented from being blocked at the discharging pipe, and the discharging efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field related to casting material preparation, in particular to a casting material mixer. Background Art

[0002] Castable material is a kind of granular and powdery material made of refractory material, with a certain amount of binder and water added. It has high fluidity, is suitable for construction by pouring method, and is an amorphous refractory material that can be hardened without heating. It is composed of refractory aggregate, powder, binder, admixture, water or other liquid materials. It is generally cast and formed by pouring, vibrating or tamping at the site of use, and can also be made into prefabricated parts for use.

[0003] Chinese patent authorization announcement number: CN201684610U, authorization announcement date 2010-12-29, discloses a casting material stirring reactor structure, which is a reactor for casting materials with resin as the main material, and the reactor includes a stirring reactor, a motor on the top of the stirring reactor, and a stirring rod with stirring blades vertically arranged in the stirring reactor and driven by the motor, wherein the outer periphery of the stirring rod is provided with a spiral thread from top to bottom, and the motor drives the stirring rod to rotate and drives the spiral thread to rotate downward to stir the casting material. The disadvantage of this patent is that, due to the certain viscosity of the casting material, the material flows slowly when discharging, and it is also easy to get blocked at the discharge port.

[0004] In summary, there is a need for a castable mixer that can improve discharge efficiency and prevent blockage. Summary of the invention

[0005] The present invention aims to overcome the shortcomings of the prior art that the castable has a certain viscosity, flows slowly during discharge, and is prone to blockage at the discharge port, and provides a castable mixer that can improve discharge efficiency and prevent blockage.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A castable material mixer, comprising a tank body, a stirring shaft is installed inside the tank body, a feed pipe is arranged on the outer wall of the tank body, the feed pipe is fixed to the bottom of the tank body, a base is fixed to the inner bottom surface of the tank body, a chamber one is arranged inside the base, a motor shaft is arranged in the chamber one, the lower end of the motor shaft is installed at the bottom of the chamber one and is rotatably connected thereto, a lifting plate is arranged at the upper end of the motor shaft, the lifting plate and the motor shaft are movably connected up and down, a rotating block is installed on the top of the chamber one, the rotating block is rotatably connected to the chamber one, and the stirring shaft is fixed on the rotating block A latch 1 is installed on the top surface of the lifting plate, a latch groove matching the latch 1 is provided on the bottom surface of the rotating block, a bevel gear 1 is sleeved on the outer side of the motor shaft, the bevel gear 1 is rotatably connected to the motor shaft, a latch 2 is installed on the bottom surface of the lifting plate, a latch through hole matching the latch 1 is provided on the bevel gear 1, a feeding shaft is also provided inside the tank body, one end of the feeding shaft is placed in chamber 1 and a bevel gear 2 matching the bevel gear 1 is fixed on its end, and the other end of the feeding shaft is placed in a feeding pipe and a screw ridge is provided on its side wall.

[0007] During the mixing operation, the pin 1 on the top surface of the lifting plate is inserted into the pin slot on the bottom surface of the rotating block, and the motor shaft drives the rotating block and the stirring shaft thereon to rotate, thereby mixing and stirring the castable in the tank body; during the discharging operation, the lifting plate automatically descends, and the pin 1 is pulled out of the pin slot, so that the stirring shaft stops working. As the lifting plate descends, the pin 2 on the bottom surface of the lifting plate is inserted into the pin through hole on the bevel gear 1, and the motor shaft drives the bevel gear 1 to rotate, and under the transmission action of the bevel gears 1 and 2, drives the discharge shaft and the screw ridges thereon to rotate synchronously, and guides and stirs the castable in the discharge pipe through the screw ridges on the discharge shaft, preventing the castable from being blocked at the discharge pipe, thereby improving the discharging efficiency. The structure is simple, the control is convenient, the degree of automation is high, and the working continuity is good.

[0008] Preferably, a latch slot 1 is provided on the top surface of the lifting plate, the latch 1 is placed in the latch slot 1 and is slidably connected thereto, one end of the latch 1 is located outside the latch slot 1, and the other end of the latch 1 is connected to the bottom surface of the latch slot 1 through a spring 1, and a latch slot 2 is provided on the bottom surface of the lifting plate, the latch 2 is placed in the latch slot 2 and is slidably connected thereto, one end of the latch 2 is located outside the latch slot 2, and the other end of the latch 2 is connected to the bottom surface of the latch slot 2 through a spring 2. During stirring, the lifting plate automatically rises to insert the latch 1 into the latch slot, so that the motor shaft drives the rotating block and the stirring shaft thereon to rotate, and when the latch 1 contacts the bottom surface of the rotating block as the lifting plate automatically rises, the latch slot 1 and the spring 1 design can provide a buffering effect on the latch, so that the latch 1 can smoothly slide along the bottom surface of the rotating block and finally be inserted into the latch slot. When discharging, the lifting plate automatically descends to insert the second latch into the latch through hole, so that the motor shaft drives the unloading shaft to rotate. When the second latch contacts the end face of the bevel gear one as the lifting plate automatically descends, the design of the second latch slide groove and the second spring can buffer the second latch, so that the second latch can slide smoothly along the end face of the bevel gear one and finally be inserted into the latch through hole.

[0009] Preferably, a bayonet slot is provided on the bottom surface of the chamber one, a bayonet is provided in the bayonet slot, the bayonet and the bayonet slot are connected by sliding up and down, the upper end of the bayonet matches the latch hole, the lower end of the bayonet and the bottom surface of the bayonet slot are connected by a spring three-phase connection, and the lifting plate is provided with a movable control mechanism matching the bayonet. During stirring, the bayonet is stuck in the latch hole of the bevel gear one, thereby automatically locking the bevel gear together. During discharging, as the lifting plate automatically descends, the movable control mechanism on the lifting plate will control the bayonet to automatically retract into the bayonet slot, so that the bayonet automatically withdraws from the latch hole, so that the latch two can be smoothly inserted into the latch hole. Among them, spring three plays the role of automatic resetting of the bayonet.

[0010] Preferably, a magnetic block is fixed to the upper end of the latch pin, and the movable control mechanism includes a magnetic disk that matches the magnetic block. The magnetic disk is fixed to the bottom surface of the lifting plate, and the opposite sides of the magnetic disk and the magnetic block are magnetic poles of the same name. Through the design of magnetic poles of the same name, when the lifting plate descends, the repulsive force between the magnetic disk on the lifting plate and the magnetic block on the upper end of the latch pin gradually increases, and the latch pin will automatically withdraw from the latch through hole under the repulsive effect of the magnetic disk; when the lifting plate rises, the repulsive force between the magnetic disk on the lifting plate and the magnetic block on the upper end of the latch pin gradually decreases, and the latch pin will automatically re-insert the latch through hole under the resetting effect of spring three. The structure is simple, the control is convenient, and the degree of automation is high.

[0011] Preferably, the opening of the latch slot and the end of the latch through hole are both provided with transition fillets. The design of transition fillets makes it easier for the first latch to be inserted into the latch, and for the second latch and the latch pin to be inserted into the latch through hole, thereby improving the working fluency.

[0012] Preferably, one end of the discharge pipe is connected to the inside of the tank body, a stopper is provided at the port of the other end of the discharge pipe, the stopper is sealed and fixedly connected to the discharge pipe, a discharge nozzle is provided on the side wall of the discharge pipe, the discharge nozzle is located below the screw rib, a support block is fixed on the side wall of the discharge nozzle, the support block is placed below the stopper and a switch shaft is installed thereon, the switch shaft and the support block are rotatably connected, a switch door matching the discharge nozzle is fixed at the lower end of the switch shaft, a transmission mechanism is provided inside the stopper, and the upper end of the switch shaft and the other end of the discharge shaft are connected through the transmission mechanism. During the stirring operation, the switch door is blocked at the discharge nozzle to prevent the casting material from leaking. During the discharge, the discharge shaft starts to rotate under the drive of the motor shaft. At this time, under the motion transmission of the transmission mechanism, the switch shaft also deflects, driving the switch door to rotate, so that it automatically moves away from the discharge nozzle to start discharging. The structure is simple, the control is convenient, the degree of automation is high, and the working continuity is good.

[0013] Preferably, a sealing pad layer is fixed on the switch door, and the sealing pad layer is placed on the side of the switch door facing the discharge nozzle. The design of the sealing pad layer improves the sealing effect between the switch door and the discharge nozzle, and can effectively prevent the casting material from leaking from the discharge nozzle.

[0014] Preferably, the block is provided with a chamber 2 inside, the other end of the feed shaft and the upper end of the switch shaft both penetrate the side wall of the block and are placed in the chamber 2, the transmission mechanism comprises a transmission sleeve installed in the chamber 2, the transmission sleeve is placed on the outer side of the feed shaft and is rotatably connected with the block, a movable pin slide is provided on the side wall of the feed shaft, a movable pin is slidably connected in the movable pin slide, one end of the movable pin and the bottom surface of the movable pin slide are connected by a spring 4, a movable pin slot matching the other end of the movable pin is provided on the inner side wall of the transmission sleeve, a bevel gear 3 is sleeved on the outer side of the transmission sleeve, the bevel gear 3 and the transmission sleeve are rotatably connected and a friction layer is provided on the connecting surface of the two, a bevel gear 4 matching the bevel gear 3 is fixed to the upper end of the switch shaft, and a reset structure matching the switch shaft is provided on the support block. In a natural state, the movable pin is located in the movable pin slide. During discharging, the unloading shaft starts to rotate driven by the motor shaft. At this time, the movable pin will automatically extend out of the movable pin slide groove under the action of centrifugal force and insert into the movable pin slot, so that the transmission sleeve rotates synchronously with the unloading shaft. Since there is a friction layer between bevel gear three and the transmission sleeve, bevel gear three will also rotate with the transmission sleeve under the action of static friction, and under the transmission action of bevel gear three and bevel gear four, the switch shaft and the switch door thereon will be driven to deflect, so that the switch door automatically moves away from the discharging nozzle and starts discharging; after the discharging is completed, the unloading shaft stops rotating, and the movable pin will automatically withdraw from the movable pin slot under the resetting action of spring four, and the resetting structure on the support block will also automatically reset the switch shaft and the switch door, so that the switch door is blocked at the discharging nozzle again.

[0015] Preferably, the support block is provided with a shaft through hole matching the switch shaft, the switch shaft is placed in the shaft through hole and is rotatably connected thereto, a guide block is provided on the side wall of the switch shaft, a guide block rotation groove matching the guide block is provided on the side wall of the shaft through hole, the guide block is placed in the guide block rotation groove and is rotatably connected thereto. The cooperation between the guide block and the guide block rotation groove facilitates the installation of the switch shaft in the shaft through hole of the support block on the one hand, and guides and limits the deflection of the switch shaft on the other hand. In the natural state, the guide block on the switch shaft is located at the end wall of one end of the guide block groove; when discharging, bevel gear three rotates with the transmission sleeve under the action of static friction, and under the transmission action of bevel gear three and bevel gear four, the switch shaft and the switch door thereon are also driven to deflect, so that the switch door automatically moves away from the discharging nozzle, and at the same time, the guide block on the switch shaft moves from the end wall of one end of the guide block groove to the end wall of the other end of the guide block groove (because the guide block on the switch shaft is blocked by the end wall of the other end of the guide block groove, the switch shaft cannot continue to rotate). At this time, the static friction between bevel gear three and the transmission sleeve is changed to dynamic friction, and the dynamic friction between bevel gear three and the transmission sleeve is used to prevent the switch shaft and the switch door from rotating, thereby ensuring that the discharging nozzle can always be in an open state.

[0016] Preferably, the reset structure includes a reset spring placed in the guide block rotation groove, one end of the reset spring is connected to the guide block, and the other end of the reset spring is connected to the end wall of the guide block rotation groove. After the discharge is completed, the discharge shaft stops rotating, the movable pin will automatically withdraw from the movable pin slot under the reset action of the spring four, and the transmission sleeve will also stop rotating. At this time, the guide block on the switch shaft will automatically rotate under the action of the reset spring, thereby driving the switch shaft and the switch door to automatically rotate and reset, so that the switch door is blocked at the discharge nozzle again.

[0017] The beneficial effects of the present invention are: it can prevent the castable material from being blocked at the discharge pipe, thereby improving the discharge efficiency; it has a simple structure, convenient control, a high degree of automation, and good working continuity; it can prevent the castable material from leaking from the discharge nozzle; the switch door at the discharge nozzle can be automatically opened and closed, and the degree of automation is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a stereogram of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a left side view of the present invention; Figure 4 yes Figure 3 Sectional view at the middle BB; Figure 5 yes Figure 4 Enlarged view of point C in the middle; Figure 6 yes Figure 4 The enlarged view of point D in the middle; Figure 7 yes Figure 2 Cross-sectional view at AA in the middle.

[0019] In the figure: 1. Tank, 2. Stirring shaft, 3. Feeding pipe, 4. Base, 5. Motor shaft, 6. Lifting plate, 7. Rotating block, 8. Latch 1, 9. Latch slot, 10. Bevel gear 1, 11. Latch 2, 12. Latch through hole, 13. Feeding shaft, 14. Bevel gear 2, 15. Screw ridge, 16. Latch slot 1, 17. Spring 1, 18. Latch slot 2, 19. Spring 2, 20. Bayonet slot, 21. Bayonet, 22. Spring 3, 23. Magnetic block, 24. Magnetic disk, 25. Stopper, 26. Feeding nozzle, 27. Support block, 28. Switch shaft, 29. Switch door, 30. Sealing pad, 31. Transmission sleeve, 32. Movable pin slot, 33. Movable pin, 34. Spring four, 35. Movable pin slot, 36. Bevel gear three, 37. Friction layer, 38. Bevel gear four, 39. Rotating shaft through hole, 40. Guide block, 41. Guide block rotating groove, 42. Reset spring. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] like Figure 1 , Figure 3 , Figure 4 and Figure 5In the described embodiment, a castable material mixer comprises a tank body 1, a stirring shaft 2 is installed inside the tank body 1, a feed pipe 3 is arranged on the outer wall of the tank body 1, the feed pipe 3 is fixed to the bottom of the tank body 1, a base 4 is fixed to the inner bottom surface of the tank body 1, a chamber 1 is arranged inside the base 4, a motor shaft 5 is arranged in the chamber 1, the lower end of the motor shaft 5 is installed at the bottom of the chamber 1 and is rotatably connected thereto, a lifting plate 6 is arranged at the upper end of the motor shaft 5, the lifting plate 6 and the motor shaft 5 are movably connected up and down, a rotating block 7 is installed on the top of the chamber 1, the rotating block 7 is rotatably connected to the chamber 1, and the stirring shaft 2 is fixed on the top surface of the rotating block 7. A latch 8 is installed on the top surface of the lifting plate 6, and a latch groove 9 matching the latch 8 is provided on the bottom surface of the rotating block 7. A bevel gear 10 is sleeved on the outer side of the motor shaft 5, and the bevel gear 10 and the motor shaft 5 are rotatably connected. A latch 2 11 is installed on the bottom surface of the lifting plate 6, and a latch through hole 12 matching the latch 8 is provided on the bevel gear 10. A discharge shaft 13 is also provided inside the tank body 1, and one end of the discharge shaft 13 is placed in the chamber 1 and a bevel gear 2 14 matching the bevel gear 10 is fixed on its end, and the other end of the discharge shaft 13 is placed in the discharge pipe 3 and a screw ridge 15 is provided on its side wall.

[0022] A latch slot 16 is provided on the top surface of the lifting plate 6, a latch 8 is placed in the latch slot 16 and is slidably connected thereto up and down, one end of the latch 8 is located outside the latch slot 16, and the other end of the latch 8 is connected to the bottom surface of the latch slot 16 via a spring 17, a latch slot 2 18 is provided on the bottom surface of the lifting plate 6, a latch 2 11 is placed in the latch slot 2 18 and is slidably connected thereto up and down, one end of the latch 2 11 is located outside the latch slot 2 18, and the other end of the latch 2 11 is connected to the bottom surface of the latch slot 2 18 via a spring 2 19.

[0023] A bayonet slot 20 is provided on the bottom surface of chamber one, and a bayonet pin 21 is provided in the bayonet slot 20. The bayonet pin 21 and the bayonet slot 20 are slidably connected up and down, the upper end of the bayonet pin 21 matches the latch through hole 12, and the lower end of the bayonet pin 21 and the bottom surface of the bayonet slot 20 are connected by a spring three 22. A movable control mechanism matching the bayonet pin 21 is provided on the lifting plate 6.

[0024] A magnetic block 23 is fixed to the upper end of the latch 21, and the movable control mechanism includes a magnetic disk 24 that matches the magnetic block 23. The magnetic disk 24 is fixed to the bottom surface of the lifting plate 6, and the opposite sides of the magnetic disk 24 and the magnetic block 23 are the same magnetic poles.

[0025] The opening of the latch slot 9 and the end of the latch through hole 12 are both provided with transition fillets.

[0026] like Figure 4 and Figure 6As shown, one end of the feed tube 3 is connected to the interior of the tank body 1, and a stopper 25 is provided at the port of the other end of the feed tube 3. The stopper 25 and the feed tube 3 are sealed and fixedly connected. A discharge nozzle 26 is provided on the side wall of the feed tube 3. The discharge nozzle 26 is located below the screw 15. A support block 27 is fixed on the side wall of the discharge nozzle 26. The support block 27 is placed below the stopper 25 and a switch shaft 28 is installed thereon. The switch shaft 28 and the support block 27 are rotatably connected. A switch door 29 matching the discharge nozzle 26 is fixed to the lower end of the switch shaft 28. A transmission mechanism is provided inside the stopper 25, and the upper end of the switch shaft 28 and the other end of the feed shaft 13 are connected through the transmission mechanism.

[0027] A sealing gasket layer 30 is fixed on the switch door 29 , and the sealing gasket layer 30 is placed on a side of the switch door 29 facing the discharge nozzle 26 .

[0028] A chamber 2 is provided inside the stopper 25, and the other end of the unloading shaft 13 and the upper end of the switch shaft 28 both penetrate the side wall of the stopper 25 and are placed in the chamber 2. The transmission mechanism includes a transmission sleeve 31 installed in the chamber 2, and the transmission sleeve 31 is placed on the outer side of the unloading shaft 13 and is rotatably connected with the stopper 25. A movable pin slide groove 32 is provided on the side wall of the unloading shaft 13, and a movable pin 33 is slidably connected in the movable pin slide groove 32. One end of the movable pin 33 and the bottom surface of the movable pin slide groove 32 are connected by a spring four 34. A movable pin slot 35 matching the other end of the movable pin 33 is provided on the inner side wall of the transmission sleeve 31, and a bevel gear three 36 is sleeved on the outer side of the transmission sleeve 31. The bevel gear three 36 and the transmission sleeve 31 are rotatably connected and a friction layer 37 is provided on the connecting surface of the two. A bevel gear four 38 matching the bevel gear three 36 is fixed to the upper end of the switch shaft 28, and a reset structure matching the switch shaft 28 is provided on the support block 27.

[0029] like Figure 2 and Figure 7 As shown, the support block 27 is provided with a shaft through hole 39 matching the switch shaft 28, the switch shaft 28 is placed in the shaft through hole 39 and is rotatably connected thereto, a guide block 40 is provided on the side wall of the switch shaft 28, a guide block rotation groove 41 matching the guide block 40 is provided on the side wall of the shaft through hole 39, the guide block 40 is placed in the guide block rotation groove 41 and is rotatably connected thereto.

[0030] The reset structure includes a reset spring 42 disposed in the guide block rotation groove 41 , one end of the reset spring 42 is connected to the guide block 40 , and the other end of the reset spring 42 is connected to the end wall of the guide block rotation groove 41 .

[0031] During stirring operation, a latch 8 on the top surface of the lifting plate 6 is inserted into a latch groove 9 on the bottom surface of the rotating block 7. At this time, the motor shaft 5 will drive the rotating block 7 and the stirring shaft 2 thereon to rotate, thereby mixing and stirring the castable in the tank body 1.

[0032] When discharging, the lifting plate 6 automatically descends, and the latch 8 is pulled out from the latch groove 9, so that the stirring shaft 2 stops working. As the lifting plate 6 descends, the repulsive force between the magnetic disk 24 on the lifting plate 6 and the magnetic block 23 on the upper end of the latch 21 will gradually increase, so that the latch 21 automatically withdraws from the latch hole 12 under the repulsive effect of the magnetic disk 24, and the latch 2 11 on the bottom surface of the lifting plate 6 will be inserted into the latch hole 12 on the bevel gear 10. At this time, the motor shaft 5 will drive the bevel gear 10 to rotate, and under the transmission action of the bevel gear 10 and the bevel gear 2 14, the unloading shaft 13 and the screw rib 15 thereon will be driven to rotate synchronously, and the screw rib 15 on the unloading shaft 13 will guide and stir the castable in the unloading pipe 3 to prevent the castable from being blocked at the unloading pipe 3.

[0033] When the material discharging shaft 13 starts to rotate under the drive of the motor shaft 5, the movable pin 33 on the material discharging shaft 13 will automatically extend out of the movable pin slide groove 32 under the centrifugal action and insert into the movable pin slot 35, so that the transmission sleeve 31 rotates synchronously with the material discharging shaft 13. Since there is a friction layer 37 between the bevel gear three 36 and the transmission sleeve 31, the bevel gear three 36 will also rotate with the transmission sleeve 31 under the action of static friction, and under the transmission action of the bevel gear three 36 and the bevel gear four 38, the switch shaft 28 and the switch door 29 thereon will be deflected, so that the switch door 29 will automatically rotate. The switch shaft 28 is moved away from the discharge nozzle 26 to start discharging, and at the same time, the guide block 40 on the switch shaft 28 moves from the end wall of one end of the guide block groove 41 to the end wall of the other end of the guide block groove 41 (because the guide block 40 on the switch shaft 28 is blocked by the end wall of the other end of the guide block groove 41, the switch shaft 28 cannot continue to rotate). At this time, the static friction between the bevel gear three 36 and the transmission sleeve 31 is changed into dynamic friction, and the dynamic friction between the bevel gear three 36 and the transmission sleeve 31 prevents the switch shaft 28 and the switch door 29 from rotating, thereby ensuring that the discharge nozzle 26 can always be in an open state.

[0034] After the discharge is completed, the discharge shaft 13 stops rotating, and the movable pin 33 automatically withdraws from the movable pin slot 35 under the reset action of the spring four 34, and the transmission sleeve 31 also stops rotating. At this time, the guide block 40 on the switch shaft 28 automatically rotates under the action of the reset spring 42, thereby driving the switch shaft 28 and the switch door 29 to automatically rotate and reset, so that the switch door 29 is blocked at the discharge nozzle 26 again.

Claims

1. A casting material mixer, characterized in that: The invention comprises a tank body (1), wherein a stirring shaft (2) is installed inside the tank body (1), a feeding pipe (3) is arranged on the outer wall of the tank body (1), the feeding pipe (3) is fixed to the bottom of the tank body (1), a base (4) is fixed to the inner bottom surface of the tank body (1), a chamber (1) is arranged inside the base (4), a motor shaft (5) is arranged in the chamber (1), the lower end of the motor shaft (5) is installed at the bottom of the chamber (1) and is rotatably connected thereto, a lifting plate (6) is arranged at the upper end of the motor shaft (5), the lifting plate (6) and the motor shaft (5) are movably connected up and down, a rotating block (7) is installed on the top of the chamber (1), the rotating block (7) and the chamber (1) are rotatably connected, the stirring shaft (2) is fixed to the top surface of the rotating block (7), the lifting plate (6) A latch pin (8) is mounted on the top surface of the rotating block (7), a latch pin groove (9) matching the latch pin (8) is disposed on the bottom surface of the rotating block (7), a bevel gear (10) is sleeved on the outer side of the motor shaft (5), the bevel gear (10) and the motor shaft (5) are rotatably connected, a latch pin (11) is mounted on the bottom surface of the lifting plate (6), a latch pin through hole (12) matching the latch pin (8) is disposed on the bevel gear (10), a feed shaft (13) is further disposed inside the tank body (1), one end of the feed shaft (13) is disposed in the chamber (1) and a bevel gear (14) matching the bevel gear (10) is fixed to the end thereof, the other end of the feed shaft (13) is disposed in the feed tube (3) and a screw ridge (15) is disposed on the side wall thereof.

2. A casting material mixer according to claim 1, characterized in that: A latch slide groove (16) is provided on the top surface of the lifting plate (6), the latch pin (8) is placed in the latch slide groove (16) and is slidably connected thereto up and down, one end of the latch pin (8) is located outside the latch slide groove (16), and the other end of the latch pin (8) is connected to the bottom surface of the latch slide groove (16) via a spring (17), and a latch slide groove (18) is provided on the bottom surface of the lifting plate (6), the latch pin (11) is placed in the latch slide groove (18) and is slidably connected thereto up and down, one end of the latch pin (11) is located outside the latch slide groove (18), and the other end of the latch pin (11) is connected to the bottom surface of the latch slide groove (18) via a spring (19).

3. A casting material mixer according to claim 2, characterized in that: A latching slot (20) is provided on the bottom surface of the chamber one, a latching pin (21) is provided in the latching slot (20), the latching pin (21) and the latching slot (20) are connected to each other by sliding up and down, the upper end of the latching pin (21) matches the latch through hole (12), the lower end of the latching pin (21) and the bottom surface of the latching slot (20) are connected via a spring three (22), and a movable control mechanism matching the latching pin (21) is provided on the lifting plate (6).

4. A casting material mixer according to claim 3, characterized in that: A magnetic block (23) is fixed to the upper end of the latch (21), and the movable control mechanism comprises a magnetic disk (24) matching the magnetic block (23). The magnetic disk (24) is fixed on the bottom surface of the lifting plate (6), and the opposite sides of the magnetic disk (24) and the magnetic block (23) have the same magnetic poles.

5. A casting material mixer according to any one of claims 1 to 4, characterized in that: The opening of the latch slot (9) and the end of the latch through hole (12) are both provided with transition fillets.

6. A casting material mixer according to any one of claims 1 to 4, characterized in that: One end of the feed tube (3) is connected to the interior of the tank body (1), and a stopper (25) is provided at the port of the other end of the feed tube (3). The stopper (25) and the feed tube (3) are sealed and fixedly connected. A discharge nozzle (26) is provided on the side wall of the feed tube (3), and the discharge nozzle (26) is located below the screw fin (15). A support block (27) is fixed on the side wall of the discharge nozzle (26). The support block (27) is placed below the stopper (25) and a switch shaft (28) is mounted thereon. The switch shaft (28) and the support block (27) are rotatably connected. A switch door (29) matching the discharge nozzle (26) is fixed at the lower end of the switch shaft (28). A transmission mechanism is provided inside the stopper (25), and the upper end of the switch shaft (28) and the other end of the feed tube (13) are connected via the transmission mechanism.

7. A casting material mixer according to claim 6, characterized in that: A sealing gasket layer (30) is fixed on the switch door (29), and the sealing gasket layer (30) is placed on a side of the switch door (29) facing the discharge nozzle (26).

8. A casting material mixer according to claim 6, characterized in that: The stopper (25) is provided with a second chamber inside, the other end of the feed shaft (13) and the upper end of the switch shaft (28) both pass through the side wall of the stopper (25) and are placed in the second chamber, the transmission mechanism comprises a transmission sleeve (31) installed in the second chamber, the transmission sleeve (31) is placed on the outside of the feed shaft (13) and is rotatably connected to the stopper (25), a movable pin slot (32) is provided on the side wall of the feed shaft (13), a movable pin (33) is slidably connected in the movable pin slot (32), one end of the movable pin (33) and the movable pin slot (3 2) are connected by a spring four (34), a movable pin slot (35) matching the other end of the movable pin (33) is provided on the inner side wall of the transmission sleeve (31), a bevel gear three (36) is sleeved on the outer side of the transmission sleeve (31), the bevel gear three (36) and the transmission sleeve (31) are rotatably connected and a friction layer (37) is provided on the connecting surface of the two, a bevel gear four (38) matching the bevel gear three (36) is fixed to the upper end of the switch shaft (28), and a reset structure matching the switch shaft (28) is provided on the support block (27).

9. A casting material mixer according to claim 8, characterized in that: The support block (27) is provided with a shaft through hole (39) matching the switch shaft (28); the switch shaft (28) is disposed in the shaft through hole (39) and is rotatably connected thereto; a guide block (40) is disposed on a side wall of the switch shaft (28); a guide block rotation groove (41) matching the guide block (40) is disposed on the side wall of the shaft through hole (39); the guide block (40) is disposed in the guide block rotation groove (41) and is rotatably connected thereto.

10. A casting material mixer according to claim 9, characterized in that: The reset structure comprises a reset spring (42) disposed in the guide block rotation groove (41), one end of the reset spring (42) being connected to the guide block (40), and the other end of the reset spring (42) being connected to an end wall of the guide block rotation groove (41).

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