A raw material mixing device for pharmaceutical production

Abstract

The application discloses a raw material fully mixing device for medicine production, a mounting support is fixedly arranged on a base, a measuring cylinder is fixedly arranged on a support plate, a first piston is slidably connected in the measuring cylinder, a cover plate is arranged above the measuring cylinder and is connected to the support plate through a first electric push rod, a discharge pipe is fixedly arranged on the top of the cover plate, a cylinder is fixedly arranged on one side of the measuring cylinder, a second piston is slidably connected in the cylinder, a ball seat is fixedly connected with the second piston through a piston rod, a counterweight ball is arranged in the ball seat, a motor is fixedly arranged on the support plate, a winding wheel is fixedly arranged on a power output end of the motor, a wire rope is wound on the winding wheel and a free end of the wire rope is fixedly connected with the counterweight ball, a pressure switch is further fixedly arranged on the bottom of the support plate, a displacement mechanism is fixedly arranged on the base, a tank body is fixedly arranged on the displacement mechanism, and a stirring mechanism is further fixedly arranged on the mounting support. The raw material fully mixing device for medicine production can automatically add liquid medicine into the tank body without manual operation, so that precise quantitative feeding is realized.

Description

Technical Field

[0001] This invention relates to the field of pharmaceutical processing technology, and more specifically, to a device for fully mixing raw materials for pharmaceutical production. Background Technology

[0002] In the prior art, such as Chinese invention patent CN108159940B, a pharmaceutical mixing device capable of automatic feeding and stirring is disclosed. This device uses a first contact block to contact a second contact block, thereby controlling a first double-contact switch and a second double-contact switch. This controls the feeding of the pharmaceutical liquid, disconnects the first motor, and automatically restarts the first motor after feeding is complete. This not only allows the mixing tank to automatically stop moving when it is below a feeding pipe before feeding, but also automatically restarts the first motor after feeding. The first motor drives the rotation of the first bevel gear, the second bevel gear, the third gear, and the second gear, thus stirring the pharmaceutical liquid. However, the above technical solution still has the following drawbacks: because the user determines the amount of pharmaceutical liquid placed in the mixing tank based on the position of the cover plate on the scale, the process of placing the pharmaceutical liquid takes a considerable amount of time, affecting processing efficiency. Furthermore, manual reading is prone to errors, affecting product processing quality. Summary of the Invention

[0003] The technical problem this invention aims to solve is that existing technologies involve manual placement of medicines, which is slow and prone to reading errors, affecting product processing quality. To overcome these shortcomings, this invention proposes a device for fully mixing raw materials in pharmaceutical production. This device automatically adds liquid medicine to the container without manual operation, thus achieving precise quantitative feeding.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] This invention provides a device for thoroughly mixing raw materials for pharmaceutical production, comprising a base, a mounting bracket, a feeding mechanism, a tank, a displacement mechanism, and a stirring mechanism. The mounting bracket is fixedly mounted on the base, and the feeding mechanism is fixedly mounted on the mounting bracket. The feeding mechanism includes a support plate and feeding units. The support plate is fixedly mounted on the mounting bracket, and two or more feeding units are evenly arranged on the support plate. Each feeding unit includes a measuring cylinder, a first piston, a cover plate, a first electric push rod, a discharge pipe, a cylinder, a second piston, a piston rod, a ball seat, a counterweight ball, a rope, a winding wheel, a motor, and a pressure switch. The measuring cylinder is fixedly mounted on the support plate, and the first piston is slidably connected inside the measuring cylinder. A cover plate is positioned above the measuring cylinder, and the cover plate passes through a first piston... An electric push rod is connected to a support plate. A discharge pipe is fixed on the top of the cover plate, and the free end of the discharge pipe extends to the bottom of the measuring cylinder. A cylinder is fixed on one side of the measuring cylinder, and the cylinder is connected to the bottom of the measuring cylinder. A second piston is slidably connected inside the cylinder. A ball seat is set above the cylinder, and the ball seat is fixedly connected to the second piston through the piston rod. A counterweight ball is set inside the ball seat. A motor is fixed on the support plate. A winding wheel is fixed to the power output end of the motor. A rope is wound on the winding wheel, and the free end of the rope is fixedly connected to the counterweight ball. A pressure switch is also fixed at the bottom of the support plate. The pressure switch is electrically connected to the motor. A displacement mechanism is fixed on the base. A tank is fixed on the displacement mechanism. A stirring mechanism is also fixed on the mounting bracket.

[0006] In a preferred embodiment of the present invention, the feeding mechanism further includes a corrugated oil pipe, a hydraulic push rod, a slider, a U-shaped block, and a limiting block. The corrugated oil pipe is disposed on one side of the cylinder, and one end of the corrugated oil pipe is fixedly connected to the top of the cover plate. The other end of the corrugated oil pipe is slidably connected to a hydraulic push rod. A slider is fixedly disposed at the free end of the hydraulic push rod. A groove is opened on the top of the U-shaped block, and the slider is slidably connected to the groove. The limiting block is disposed inside the U-shaped block and is fixedly disposed on the piston rod.

[0007] In a preferred embodiment of the present invention, an adjusting component is also fixedly provided on the U-shaped block. The adjusting component includes a rotating handle, a threaded shaft, and a baffle. The threaded shaft is disposed on the inner side of the U-shaped block, and both ends of the threaded shaft are rotatably connected to the inner sidewall of the U-shaped block. The rotating handle is rotatably connected to the outer side of the U-shaped block. One end of the threaded shaft is fixedly connected to the rotating handle. A baffle is also threadedly connected to the threaded shaft, and the baffle is located below the limiting block.

[0008] In a preferred embodiment of the present invention, the side of the U-shaped block is further provided with a scale.

[0009] In a preferred embodiment of the present invention, the cover plate is further provided with an exhaust hole, and a semi-permeable membrane is fixed inside the exhaust hole.

[0010] In a preferred embodiment of the present invention, a one-way valve is fixedly provided on the discharge pipe.

[0011] In a preferred embodiment of the present invention, the displacement mechanism includes a displacement motor, a first rotating gear, a first rack, and a sliding plate. The sliding plate is slidably connected to the base, and the first rack is fixedly disposed on one side of the sliding plate. The displacement motor is fixedly disposed on the base, and the first rotating gear is fixedly disposed at the power output end of the displacement motor, and the first rotating gear and the first rack mesh with each other.

[0012] In a preferred embodiment of the present invention, the stirring mechanism includes a second electric push rod, a lifting seat, a stirring motor, a stirring shaft, a rotating block, and stirring rods. The second electric push rod is fixed on the mounting bracket, and the free end of the second electric push rod is fixed with the lifting seat. The stirring motor is fixed on the lifting seat, the stirring shaft is fixed on the power output end of the stirring motor, the rotating block is fixed on the stirring shaft, and two or more stirring rods are uniformly fixed on the side wall of the rotating block.

[0013] The beneficial effects of this invention are as follows:

[0014] This invention proposes a raw material mixing device for pharmaceutical production, which can automatically add liquid medicine into a tank without manual operation, thereby achieving precise quantitative feeding. Utilizing the cooperation of corrugated oil pipes, hydraulic push rods, and U-shaped blocks, the device allows for the complete purging of air from the upper chamber of the measuring cylinder, followed by a limiting block restricting the movement of the first piston to achieve quantitative feeding into the tank. Simultaneously, an adjusting component can adjust the distance between the baffle and the end of the U-shaped block to control the maximum displacement of the limiting block, adapting to the processing of different types of pharmaceuticals. A stirring mechanism is also included to stir the liquid medicine after all raw materials have been added to the tank, ensuring uniform mixing of all components. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a pharmaceutical raw material mixing device provided in a specific embodiment of the present invention;

[0016] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0017] Figure 3 yes Figure 1 The right view.

[0018] In the picture:

[0019] 1. Base; 2. Mounting bracket; 3. Feeding mechanism; 301. Support plate; 302. Measuring cylinder; 303. First piston; 304. Cover plate; 305. First electric push rod; 306. Discharge pipe; 307. Cylinder; 308. Second piston; 309. Piston rod; 310. Ball seat; 311. Counterweight ball; 312. Rope; 313. Winding reel; 314. Motor; 315. Pressure switch; 316. Corrugated oil pipe; 317. Hydraulic push rod; 318. Slider; 19. U-shaped block; 320. Slide groove; 321. Limiting block; 322. Rotating handle; 323. Threaded shaft; 324. Baffle; 325. Vent hole; 326. Semi-permeable membrane; 327. One-way valve; 4. Tank body; 5. Displacement mechanism; 51. Displacement motor; 52. First rotating gear; 53. First rack; 54. Slide plate; 6. Stirring mechanism; 61. Second electric push rod; 62. Lifting seat; 63. Stirring motor; 64. Stirring shaft; 65. Rotating block; 66. Stirring rod. Detailed Implementation

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] like Figure 1-3As shown in the embodiment, a device for thoroughly mixing raw materials for pharmaceutical production is provided, including a base 1, a mounting bracket 2, a feeding mechanism 3, a tank 4, a displacement mechanism 5, and a stirring mechanism 6. The mounting bracket 2 is fixedly mounted on the base 1, and the feeding mechanism 3 is fixedly mounted on the mounting bracket 2. The feeding mechanism 3 includes a support plate 301 and feeding units. The support plate 301 is fixedly mounted on the mounting bracket 2, and two or more feeding units are evenly arranged on the support plate 301. Each feeding unit includes a measuring cylinder 302. The system includes a first piston 303, a cover plate 304, a first electric push rod 305, a discharge pipe 306, a cylinder 307, a second piston 308, a piston rod 309, a ball seat 310, a counterweight ball 311, a rope 312, a winding reel 313, a motor 314, and a pressure switch 315. A measuring cylinder 302 is fixed to a support plate 301. The first piston 303 is slidably connected inside the measuring cylinder 302. A cover plate 304 is positioned above the measuring cylinder 302, and the cover plate 304 is connected to the first electric push rod 305. 05 is connected to the support plate 301. A discharge pipe 306 is fixedly installed on the top of the cover plate 304. The free end of the discharge pipe 306 extends to the bottom of the measuring cylinder 302. A cylinder 307 is fixedly installed on one side of the measuring cylinder 302 and is connected to the bottom of the measuring cylinder 302. A second piston 308 is slidably connected inside the cylinder 307. A ball seat 310 is located above the cylinder 307 and is fixedly connected to the second piston 308 through the piston rod 309. A counterweight ball is installed inside the ball seat 310. 311. Motor 314 is fixed on support plate 301. Winding reel 313 is fixed to the power output end of motor 314. Rope 312 is wound on winding reel 313, and the free end of rope 312 is fixedly connected to counterweight ball 311. Pressure switch 315 is also fixed at the bottom of support plate 301. Pressure switch 315 is electrically connected to motor 314. Displacement mechanism 5 is fixed on base 1. Tank 4 is fixed on displacement mechanism 5. Stirring mechanism 6 is also fixed on mounting bracket 2. In this embodiment, mounting bracket 2 is fixed to the top of base 1, and feeding mechanism 3 is fixed on mounting bracket 2 for automatically feeding material into tank 4, reducing the labor intensity of workers.Among them, the support plate 301 is of a "C" - shaped structure. The feeding unit is arranged inside the support plate 301. The measuring cylinder 302 is arranged vertically, and the measuring cylinder 302 contains liquid medicine for stirring use. The first piston 303 can slide up and down inside the measuring cylinder 302, and the first piston 303 divides the measuring cylinder 302 into upper and lower chambers. The liquid medicine is placed in the upper chamber. Thus, during the sliding process of the first piston 303, the liquid medicine can be discharged through the discharge pipe 306. The first electric push rod 305 can control the lifting of the cover plate 304, which is used to close the top opening of the measuring cylinder 302 and facilitate feeding. The cylinder 307 is arranged parallel to the measuring cylinder 302. The second piston 308 can move up and down inside the cylinder 307, thereby driving the first piston 303 to move synchronously. The ball seat 310 is provided with a ball groove. The diameter of the counterweight ball 311 is smaller than the opening of the ball groove, so that the counterweight ball 311 can be taken out from the ball groove. The pressure switch 315 can abut against the top wall of the tank body 4. When the pressure switch 315 is pressed, it will control the motor 314 to drive the wire winding wheel 313 to rotate clockwise, thereby releasing the counterweight ball 311. When the pressure switch 315 is not pressed, it will control the motor 314 to reverse, thereby retracting the counterweight ball 311. The displacement mechanism 5 is used to drive the tank body 4 to move so as to align the tank body with different feeding units, facilitating the feeding process. The stirring mechanism 6 is arranged on one side of the feeding mechanism 3 and is used to stir the liquid medicine in the tank body 4 evenly.

[0022] Specifically, the feeding mechanism 3 further includes a corrugated oil pipe 316, a hydraulic push rod 317, a slider 318, a U - shaped block 319 and a limit block 321. The corrugated oil pipe 316 is arranged on one side of the cylinder 307, and one end of the corrugated oil pipe 316 is fixedly connected to the top end of the cover plate 304. The other end of the corrugated oil pipe 316 is slidably connected with the hydraulic push rod 317. The free end of the hydraulic push rod 317 is fixedly provided with the slider 318. The top of the U - shaped block 319 is provided with a chute 320, and the slider 318 is slidably connected with the chute 320. The limit block 321 is arranged inside the U - shaped block 319 and is fixedly arranged on the piston rod 309. In this embodiment, one end of the corrugated oil pipe 316 close to the hydraulic push rod 317 is horizontally arranged inside the support plate 301, and the free end of the hydraulic push rod 317 is aligned with the piston rod 309. The slider 318 is a trapezoidal slider, the chute 320 is a swallow - tail groove, and the trapezoidal slider can slide in the swallow - tail groove, thereby movably connecting the hydraulic push rod 317 with the U - shaped block 319. The limit block 321 is used to limit the maximum displacement of the piston rod 309, thereby achieving the effect of controlling the extrusion amount of the liquid medicine and making the batching more accurate.

[0023] Specifically, an adjusting component is fixedly provided on the U-shaped block 319. The adjusting component includes a rotating handle 322, a threaded shaft 323, and a baffle 324. The threaded shaft 323 is disposed on the inner side of the U-shaped block 319, and both ends of the threaded shaft 323 are rotatably connected to the inner sidewall of the U-shaped block 319. The rotating handle 322 is rotatably connected to the outer side of the U-shaped block 319. One end of the threaded shaft 323 is fixedly connected to the rotating handle 322. The baffle 324 is also threadedly connected to the threaded shaft 323, and the baffle 324 is located below the limiting block 321. In this embodiment, the adjusting component can adjust the position of the baffle 324, thereby achieving the effect of adjusting the maximum displacement of the limiting block 321. The rotating handle 322 is rotatably connected to the outer sidewall of the U-shaped block 319, and the rotating handle 322 is used to drive the threaded shaft 323 to rotate. The baffle 324 is slidably connected to the inner sidewall of the U-shaped block 319.

[0024] Specifically, the U-shaped block 319 also has graduations on its side. In this embodiment, the graduations facilitate the adjustment of the feeding amount by the staff.

[0025] Specifically, the cover plate 304 is also provided with an exhaust hole 325, and a semi-permeable membrane 326 is fixed inside the exhaust hole 325. In this embodiment, by providing the exhaust hole 325, air inside the measuring cylinder 302 can be discharged, and the semi-permeable membrane 326 can block the liquid medicine, while air can pass through freely.

[0026] Specifically, a one-way valve 327 is fixedly installed on the discharge pipe 306. In this embodiment, the one-way valve 327 can automatically close the discharge pipe 306 when the first piston 303 is not moving, so as to prevent leakage of the medicine.

[0027] Specifically, the displacement mechanism 5 includes a displacement motor 51, a first rotating gear 52, a first rack 53, and a sliding plate 54. The sliding plate 54 is slidably connected to the base 1, and the first rack 53 is fixedly mounted on one side of the sliding plate 54. The displacement motor 51 is fixedly mounted on the base 1, and the first rotating gear 52 is fixedly mounted on the power output end of the displacement motor 51, with the first rotating gear 52 meshing with the first rack 53. In this embodiment, the sliding plate 54 can slide laterally on the base 1. The first rack 53 is fixedly mounted on the front side of the sliding plate 54. The displacement motor 51 drives the first rotating gear 52 to rotate, thereby causing the sliding plate 54 to move synchronously to adjust the position of the tank 4.

[0028] Specifically, the stirring mechanism 6 includes a second electric push rod 61, a lifting seat 62, a stirring motor 63, a stirring shaft 64, a rotating block 65, and stirring rods 66. The second electric push rod 61 is fixed on the mounting bracket 2, and the lifting seat 62 is fixed to the free end of the second electric push rod 61. The stirring motor 63 is fixed on the lifting seat 62, and the stirring shaft 64 is fixed to the power output end of the stirring motor 63. The rotating block 65 is fixed on the stirring shaft 64, and two or more stirring rods 66 are evenly fixed on the side wall of the rotating block 65. In this embodiment, the second electric push rod 61 is vertically arranged on one side of the support plate 301, and the fixed end of the second electric push rod 61 is fixed on the mounting bracket 2. The lifting seat 62 is arranged below the second electric push rod 61, and the lifting seat 62 is fixedly connected to the output end of the second electric push rod 61, thereby driving the lifting seat 62 to move up and down to control the stirring rod 66 to extend into the tank 4. The stirring motor 63 is used to drive the stirring shaft 64 and the stirring rod 66 to rotate to realize the stirring function. The stirring rod 66 has an L-shaped structure, and the top end of the stirring rod 66 is fixed on the side wall of the rotating block 65.

[0029] Working principle: When the user needs to mix medicines, firstly, the first electric push rod 305 is retracted to open the cover plate 304. At this time, the user adds different medicine solutions to each measuring cylinder 302. After the addition is completed, the cover plate 304 is put back on the measuring cylinder 302. Then, the displacement motor 51 is started. The displacement motor 51 drives the first rotating gear 52 to rotate, which in turn drives the slide plate 54 to slide synchronously, so that the tank 4 moves from left to right. When the tank 4 moves to below the measuring cylinder 302, the displacement motor 51 stops working. At this time, the tank 4 triggers the pressure switch 315. The pressure switch 315 controls the motor 314 to start. The motor 314 controls the winding wheel 313 to rotate clockwise, thereby lowering the counterweight ball 311. When the counterweight ball 311 falls onto the ball seat 310, under the action of gravity, it will press down on the ball seat 310, thereby driving... The second piston 308 moves downward, which drives the first piston 303 to move upward, thereby gradually expelling the air in the upper chamber of the measuring cylinder 302 through the exhaust port 325. After the air is completely expelled, the second piston 308 continues to move upward, which will push the medicine into the corrugated oil pipe 316, thereby pushing the hydraulic push rod 317 to move laterally, so that the U-shaped block 319 is pressed against the baffle on the inner side of the support plate 301, so that the U-shaped block 319 is squeezed and fixed. At this time, the first piston 303 continues to move upward, which will open the one-way valve 327, so that the medicine is discharged from the discharge pipe 306 into the tank 4. At the same time, under the limiting action of the limiting block 321, the first piston 303 can only move a fixed distance, thereby realizing quantitative feeding and making the feeding amount more accurate. Then, the same principle is used to add other components of medicine into the tank 4.

[0030] After the feeding is completed, the tank body 4 is moved to the rightmost end. At this time, the second electric push rod 61 is activated. The second electric push rod 61 drives the lifting seat 62 to move down, so that the stirring rod 66 extends into the tank body 4. Then the stirring motor 63 is activated. The stirring motor 63 drives the stirring shaft 64 to rotate. The rotation of the stirring shaft 64 drives the stirring rod 66 to rotate, so as to mix the medicine liquid evenly.

[0031] This invention has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. This invention is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims are also within the protection scope of this invention.

Claims

1. A device for thoroughly mixing raw materials used in pharmaceutical production, characterized in that: The utility model relates to a kind of automatic feeding device, including base (1), mounting bracket (2), feeding mechanism (3), tank body (4), displacement mechanism (5) and stirring mechanism (6), base (1) is fixed with mounting bracket (2), mounting bracket (2) is fixed with feeding mechanism (3) on, feeding mechanism (3) includes support plate (301) and feeding unit, support plate (301) is fixed on mounting bracket (2), support plate (301) is evenly provided with two or more feeding units, feeding unit includes measuring cylinder (302), first piston (303), cover plate (304), first electric push rod (305), discharge pipe (306), cylinder (307), second piston (308), piston rod (309), ball seat (310), counterweight ball (311), wire rope (312), winding wheel (313), motor (314) and pressure switch (315), measuring cylinder (302) is fixed on support plate (301), first piston (303) is slidably connected in measuring cylinder (302), cover plate (304) is provided on the top of measuring cylinder (302), and cover plate (304) is connected to support plate (301) by first electric push rod (305), cover plate (304) top is fixed with discharge pipe (306), discharge pipe (306) free end extends to the below of measuring cylinder (302), cylinder (307) is fixed on the side of measuring cylinder (302), and cylinder (307) is communicated with the bottom end of measuring cylinder (302), second piston (308) is slidably connected in cylinder (307), ball seat (310) is arranged above cylinder (307), and ball seat (310) is fixedly connected with second piston (308) by piston rod (309), counterweight ball (311) is arranged in ball seat (310), motor (314) is fixed on support plate (301), winding wheel (313) is fixed on the power output end of motor (314), winding wheel (313) is wound with wire rope (312), and wire rope (312) free end is fixedly connected with counterweight ball (311), support plate (301) bottom is also fixed with pressure switch (315), and pressure switch (315) is electrically connected with motor (314), base (1) is fixed with displacement mechanism (5), displacement mechanism (5) is fixed with tank body (4) on, mounting bracket (2) is also fixed with stirring mechanism (6) on; The feeding mechanism (3) further includes a corrugated oil pipe (316), a hydraulic push rod (317), a sliding block (318), a U-shaped block (319) and a limiting block (321), the corrugated oil pipe (316) is arranged on one side of the cylinder (307), one end of the corrugated oil pipe (316) is fixedly connected with the top end of the cover plate (304), the other end of the corrugated oil pipe (316) is slidably connected with the hydraulic push rod (317), the free end of the hydraulic push rod (317) is fixedly provided with the sliding block (318), the U-shaped block (319) is provided with a sliding groove (320) on the top, the sliding block (318) is slidably connected with the sliding groove (320), the limiting block (321) is arranged on the inner side of the U-shaped block (319), and the limiting block (321) is fixed on the piston rod (309). The U-shaped block (319) is further provided with an adjusting member, the adjusting member comprises a rotating handle (322), a threaded shaft (323) and a baffle (324), the threaded shaft (323) is arranged in the inner side of the U-shaped block (319), both ends of the threaded shaft (323) are rotationally connected with the inner side wall of the U-shaped block (319), the rotating handle (322) is rotationally connected with the outer side of the U-shaped block (319), one end of the threaded shaft (323) is fixedly connected with the rotating handle (322), the threaded shaft (323) is further threadedly connected with the baffle (324), and the baffle (324) is located below the limiting block (321). The cover plate (304) is further provided with an exhaust hole (325), and a semi-permeable membrane (326) is arranged in the exhaust hole (325).

2. The raw material mixing device for pharmaceutical production according to claim 1, characterized in that: The U-shaped block (319) is further provided with a scale.

3. The raw material mixing device for pharmaceutical production according to claim 1, characterized in that: The discharge pipe (306) is further provided with a one-way valve (327).

4. The raw material mixing device for pharmaceutical production according to claim 1, characterized in that: The displacement mechanism (5) comprises a displacement motor (51), a first rotating gear (52), a first rack (53) and a sliding plate (54), the sliding plate (54) is slidingly connected to the base (1), the first rack (53) is fixedly arranged on one side of the sliding plate (54), the displacement motor (51) is fixedly arranged on the base (1), the first rotating gear (52) is fixedly arranged on the power output end of the displacement motor (51), and the first rotating gear (52) is meshed with the first rack (53).

5. The raw material mixing device for pharmaceutical production according to claim 1, characterized in that: The stirring mechanism (6) comprises a second electric push rod (61), a lifting seat (62), a stirring motor (63), a stirring shaft (64), a rotating block (65) and a stirring rod (66), the second electric push rod (61) is fixedly arranged on the mounting bracket (2), the lifting seat (62) is fixedly arranged on the free end of the second electric push rod (61), the stirring motor (63) is fixedly arranged on the lifting seat (62), the stirring shaft (64) is fixedly arranged on the power output end of the stirring motor (63), the rotating block (65) is fixedly arranged on the stirring shaft (64), and two or more than two stirring rods (66) are uniformly fixedly arranged on the side wall of the rotating block (65).

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