Freeze-drying lactic acid bacteria crushing and screening device

Abstract

The utility model relates to the technical field of freeze-drying type lactic acid bacteria crushing and screening devices, in particular to a freeze-drying type lactic acid bacteria crushing and screening device which is characterized in that freeze-drying type lactic acid bacteria in a first screening mechanism are crushed by opening a first crushing mechanism; meanwhile, the first screening mechanism is started to rotate to conduct primary sorting on the freeze-drying type lactic acid bacteria, the freeze-drying type lactic acid bacteria with smaller particles are needed, the freeze-drying type lactic acid bacteria are crushed again by starting the second crushing mechanism, meanwhile, a sorting screen is cleaned by starting the cleaning mechanism, and the practicability of the equipment is improved; comprising a feeding mechanism; the device further comprises a first screening mechanism, a first crushing mechanism, a second screening mechanism, a second crushing mechanism and a cleaning mechanism, the feeding mechanism is installed at the top end of the first screening mechanism, the first crushing mechanism is installed in the first screening mechanism, and the top end of the second screening mechanism is connected with the bottom end of the first crushing mechanism; and the second crushing mechanism and the cleaning mechanism are both mounted in the second screening mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of freeze-dried lactic acid bacteria crushing and screening devices, in particular to a freeze-dried lactic acid bacteria crushing and screening device. Background Art

[0002] Freeze-dried lactic acid bacteria powder contains a variety of natural lactic acid bacteria, enzyme preparations and trace nutrients. It is a broad-effect microbial feed additive. This product is made by biological microbial fermentation, vacuum freeze drying, and the formulated live bacteria freeze-dried lactic acid bacteria adopts embedding protection technology. It has good instant solubility, antibiotic resistance, and storage and transportation resistance. Long-term use as drinking water or mixed feed for livestock and poultry can effectively protect animal health, promote growth, enhance animal immunity and anti-stress ability, effectively reduce feed-to-meat ratio, increase weight quickly, reduce the use of antibiotics, improve the flavor and meat quality of livestock and poultry products, and improve the economic benefits of breeding.

[0003] For example, in a type of prior art represented by the freeze-dried lactic acid bacteria crushing and screening device disclosed in the utility model patent with application number 202121294595., its main structure includes a box body, a feed port, an extrusion and crushing assembly, a mounting plate, a grinding assembly and a rotating disk, etc. The freeze-dried lactic acid bacteria crushing and screening is achieved through the coordination of structures such as a box body, a feed port, an extrusion and crushing assembly, a mounting plate, a grinding assembly and a rotating disk.

[0004] When freeze-dried lactic acid bacteria are crushed and screened, the freeze-dried lactic acid bacteria powder is crushed finely, which easily causes the sorting screen to be blocked. In addition, the size of lactic acid bacteria particles required varies depending on the different effects on the freeze-dried lactic acid bacteria. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a freeze-dried lactic acid bacteria crushing and screening device by opening a first crushing mechanism to crush the freeze-dried lactic acid bacteria in a first screening mechanism, and at the same time opening the first screening mechanism to rotate the freeze-dried lactic acid bacteria for the first time sorting. For freeze-dried lactic acid bacteria that need smaller particles, the freeze-dried lactic acid bacteria are crushed again by opening a second crushing mechanism, and at the same time the sorting screen is cleaned by opening a cleaning mechanism to prevent the sorting screen from being blocked, thereby improving the practicality of the equipment.

[0006] The utility model discloses a freeze-dried lactic acid bacteria crushing and screening device, comprising a feeding mechanism; a first screening mechanism, a first crushing mechanism, a second screening mechanism, a second crushing mechanism and a cleaning mechanism, wherein the feeding mechanism is arranged at the top of the first screening mechanism, the first crushing mechanism is arranged inside the first screening mechanism, the top of the second screening mechanism is connected with the bottom of the first crushing mechanism, and the second crushing mechanism and the cleaning mechanism are both arranged inside the second screening mechanism; freeze-dried lactic acid bacteria are put into the feeding mechanism, and the large pieces of freeze-dried lactic acid bacteria are squeezed by opening the feeding mechanism and the freeze-dried lactic acid bacteria are allowed to enter In the first screening mechanism, the freeze-dried lactic acid bacteria in the first screening mechanism are crushed by opening the first crushing mechanism, and the first screening mechanism is opened to rotate the freeze-dried lactic acid bacteria for the first sorting. The freeze-dried lactic acid bacteria are discharged when the user's requirements are met. If smaller particles of freeze-dried lactic acid bacteria are needed, the freeze-dried lactic acid bacteria are discharged into the second screening mechanism, and the freeze-dried lactic acid bacteria are crushed again by opening the second crushing mechanism. At the same time, the sorting screen is cleaned by opening the cleaning mechanism to prevent the sorting screen from being blocked. After the sorting is completed, it is discharged through the second screening mechanism, thereby improving the practicality of the equipment.

[0007] Preferably, the feeding mechanism includes a feeding box, a plurality of squeezing rollers and a plurality of first motors, the feeding box is installed at the top end of the first screening mechanism, the right ends of the plurality of squeezing rollers are respectively installed on the output ends of the plurality of first motors, and the plurality of squeezing rollers are respectively located in the feeding box; the freeze-dried lactic acid bacteria are placed in the feeding box, and the freeze-dried lactic acid bacteria are squeezed through the plurality of squeezing rollers by respectively turning on the plurality of first motors so that the freeze-dried lactic acid bacteria enter the first screening mechanism, thereby improving the practicability of the equipment.

[0008] Preferably, the first screening mechanism comprises a first discharge barrel, a screening barrel, a bearing, a first transmission wheel, a second transmission wheel, a second motor, a transmission belt, a first discharge bucket and a first discharge pipe, the screening barrel is installed inside the first discharge barrel, the inner ring of the bearing is installed at the top of the screening barrel, the inner ring of the first transmission wheel is connected to the outer ring of the bearing, the inner ring of the second transmission wheel is installed on the output end of the second motor, the second motor is installed on the outer wall of the first discharge barrel, the transmission belt is sleeved on the outer rings of the first transmission wheel and the second transmission wheel, the top of the first discharge bucket is connected to the bottom of the first discharge barrel, the input end of the first discharge pipe is installed on the outer wall of the first discharge bucket, and valves are respectively provided on the lower part of the first discharge bucket and the first discharge pipe; by turning on the second motor to rotate the second transmission wheel, the first transmission wheel is rotated through the transmission belt, and the screening barrel is rotated through the bearing, the freeze-dried lactic acid bacteria in the screening barrel are screened for the first time, and the screened freeze-dried lactic acid bacteria are discharged into the second screening mechanism and discharged through the first discharge pipe respectively through the first discharge bucket, thereby improving the practicality of the equipment.

[0009] Preferably, the first crushing mechanism includes a third motor, a third motor and multiple first crushing knives, the third motor is installed at the top of the screening barrel, the top of the first crushing shaft is connected to the output end of the first crushing shaft, the first crushing shaft is provided with multiple first crushing knives, and the first crushing shaft is located in the screening barrel; by turning on the third motor to rotate the first crushing shaft, the freeze-dried lactic acid bacteria are crushed by the multiple first crushing knives respectively, thereby improving the practicality of the equipment.

[0010] Preferably, the second screening mechanism includes a second discharge barrel, a sorting screen, a second discharge bucket and a second discharge pipe, the sorting screen is installed in the second discharge barrel, the top end of the second discharge bucket is connected to the bottom end of the second discharge barrel, and the input end of the second discharge pipe is installed on the outer wall of the second discharge bucket; the freeze-dried lactic acid bacteria enter the second discharge barrel and are screened for the second time through the sorting screen, and the screened freeze-dried lactic acid bacteria are discharged from the second discharge bucket to the second discharge pipe, thereby improving the practicality of the equipment.

[0011] Preferably, the second crushing mechanism includes a fourth motor, a first gear, a second gear, a rotary discharge pipe, a second crushing shaft and a plurality of second crushing knives, the inner ring of the first gear is mounted on the output end of the fourth motor, the outer ring of the first gear is meshed with the outer ring of the second gear, the inner ring of the second gear is mounted on the outer wall of the rotary discharge pipe, the rotary discharge pipe is rotatably mounted on the top end of the second discharge barrel, and the rotary discharge pipe is provided with two output ends, the top end of the second crushing shaft is mounted on the rotary discharge pipe, the second crushing shaft is provided with a plurality of second crushing knives, and the second crushing shaft is located inside the second discharge barrel; the freeze-dried lactic acid bacteria enter the second discharge barrel through the input end of the rotary discharge pipe, the second gear is rotated by opening the first gear, the second crushing shaft is rotated by meshing the second gear with the rotary discharge pipe, and the freeze-dried lactic acid bacteria are crushed for a second time by the plurality of second crushing knives respectively, thereby improving the practicality of the equipment.

[0012] Preferably, the cleaning mechanism includes a fifth motor, a rotating shaft, a scraper and a cleaning brush, the bottom end of the rotating shaft is installed on the output end of the fifth motor, the scraper is installed on the rotating shaft at an angle, the cleaning brush is installed on the top end of the rotating shaft, the rotating shaft is located inside the second discharge bucket, and the lower end of the cleaning brush is in contact with the top end of the sorting screen; by turning on the fifth motor to rotate the rotating shaft, the scraper cleans the inner wall of the second discharge bucket, and the cleaning brush cleans the sorting screen, thereby improving the practicability of the equipment.

[0013] Compared with the prior art, the utility model has the following beneficial effects: freeze-dried lactic acid bacteria are placed in a feeding mechanism, large pieces of freeze-dried lactic acid bacteria are squeezed by opening the feeding mechanism and the freeze-dried lactic acid bacteria are allowed to enter the first screening mechanism, the freeze-dried lactic acid bacteria in the first screening mechanism are crushed by opening the first crushing mechanism, and the first screening mechanism is opened to rotate the freeze-dried lactic acid bacteria for the first sorting, and the freeze-dried lactic acid bacteria are discharged when user requirements are met. If smaller particles of freeze-dried lactic acid bacteria are needed, the freeze-dried lactic acid bacteria are discharged into the second screening mechanism, the freeze-dried lactic acid bacteria are crushed again by opening the second crushing mechanism, and the sorting screen is cleaned by opening the cleaning mechanism to prevent the sorting screen from being blocked, and the freeze-dried lactic acid bacteria are discharged through the second screening mechanism after sorting, thereby improving the practicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural axonometric cross-sectional view of the utility model;

[0015] Figure 2 It is an axonometric schematic diagram of the feeding mechanism of the utility model;

[0016] Figure 3 It is a front view cross-sectional view of the first screening mechanism of the utility model;

[0017] Figure 4 This is an axonometric diagram of the first pulverizing mechanism of the utility model;

[0018] Figure 5 It is a front cross-sectional view of the second screening mechanism of the utility model;

[0019] Figure 6 This is an axonometric schematic diagram of the second pulverizing mechanism of the utility model;

[0020] Figure 7 It is an axonometric schematic diagram of the cleaning mechanism of the utility model.

[0021] Markings in the accompanying drawings: 01, feeding mechanism; 11, feeding box; 12, squeezing roller; 13, first motor;

[0022] 02. First screening mechanism; 21. First discharge barrel; 22. Screening barrel; 23. Bearing; 24. First transmission wheel; 25. Second transmission wheel; 26. Second motor; 27. Transmission belt; 28. First discharge bucket; 29. ​​First discharge pipe; 03. First crushing mechanism; 31. Third motor; 32. First crushing shaft; 33. First crushing knife; 04. Second screening mechanism; 41. Second discharge barrel; 42. Sorting screen; 43. Second discharge bucket; 44. Second discharge pipe; 05. Second crushing mechanism; 51. Fourth motor; 52. First gear; 53. Second gear; 54. Rotating discharge pipe; 55. Second crushing shaft; 56. Second crushing knife; 06. Cleaning mechanism; 61. Fifth motor; 62. Rotating shaft; 63. Scraper; 64. Cleaning brush. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive. Example 1

[0024] like Figure 1 As shown, it includes a feeding mechanism 01; it also includes a first screening mechanism 02, a first crushing mechanism 03, a second screening mechanism 04, a second crushing mechanism 05 and a cleaning mechanism 06, the feeding mechanism 01 is installed at the top of the first screening mechanism 02, the first crushing mechanism 03 is installed inside the first screening mechanism 02, the top of the second screening mechanism 04 is connected to the bottom of the first crushing mechanism 03, and the second crushing mechanism 05 and the cleaning mechanism 06 are both installed inside the second screening mechanism 04;

[0025] The freeze-dried lactic acid bacteria are placed in the feeding mechanism 01, and the large pieces of freeze-dried lactic acid bacteria are squeezed by opening the feeding mechanism 01 and the freeze-dried lactic acid bacteria are allowed to enter the first screening mechanism 02, and the freeze-dried lactic acid bacteria in the first screening mechanism 02 are crushed by opening the first crushing mechanism 03, and the first screening mechanism 02 is opened to rotate to perform the first sorting of the freeze-dried lactic acid bacteria, and the freeze-dried lactic acid bacteria are discharged when the user's requirements are met. If the freeze-dried lactic acid bacteria with smaller particles are required, the freeze-dried lactic acid bacteria are discharged into the second screening mechanism 04, and the freeze-dried lactic acid bacteria are crushed again by opening the second crushing mechanism 05, and the sorting screen is cleaned by opening the cleaning mechanism 06 to prevent the sorting screen from being blocked, and the freeze-dried lactic acid bacteria are discharged through the second screening mechanism 04 after the sorting is completed, thereby improving the practicality of the equipment;

[0026] like Figure 2As shown, the feeding mechanism 01 includes a feeding box 11, a plurality of squeezing rollers 12 and a plurality of first motors 13, the feeding box 11 is installed at the top of the first screening mechanism 02, the right ends of the plurality of squeezing rollers 12 are respectively installed on the output ends of the plurality of first motors 13, and the plurality of squeezing rollers 12 are respectively located in the feeding box 11;

[0027] like Figure 3 As shown, the first screening mechanism 02 includes a first discharge bucket 21, a screening bucket 22, a bearing 23, a first transmission wheel 24, a second transmission wheel 25, a second motor 26, a transmission belt 27, a first discharge bucket 28 and a first discharge pipe 29, the screening bucket 22 is installed inside the first discharge bucket 21, the inner ring of the bearing 23 is installed at the top of the screening bucket 22, the inner ring of the first transmission wheel 24 is connected to the outer ring of the bearing 23, the inner ring of the second transmission wheel 25 is installed on the output end of the second motor 26, the second motor 26 is installed on the outer wall of the first discharge bucket 21, the transmission belt 27 is sleeved on the outer rings of the first transmission wheel 24 and the second transmission wheel 25, the top of the first discharge bucket 28 is connected to the bottom of the first discharge bucket 21, the input end of the first discharge pipe 29 is installed on the outer wall of the first discharge bucket 28, and valves are respectively provided on the lower part of the first discharge bucket 28 and the first discharge pipe 29;

[0028] like Figure 4 As shown, the first crushing mechanism 03 includes a third motor 31, a third motor 31 and a plurality of first crushing knives 33, the third motor 31 is installed at the top end of the screening barrel 22, the top end of the first crushing shaft 32 is connected to the output end of the first crushing shaft 32, the first crushing shaft 32 is provided with a plurality of first crushing knives 33, and the first crushing shaft 32 is located in the screening barrel 22;

[0029] The freeze-dried lactic acid bacteria are placed in the feed box 11, and the freeze-dried lactic acid bacteria are squeezed through the multiple squeezing rollers 12 by turning on the multiple first motors 13 to make the freeze-dried lactic acid bacteria enter the first screening mechanism 02, and the second motor 26 is turned on to rotate the second transmission wheel 25, and the first transmission wheel 24 is rotated through the transmission belt 27, and the screening barrel 22 is driven by the bearing 23 to rotate, and the freeze-dried lactic acid bacteria in the screening barrel 22 are screened for the first time, and the screened freeze-dried lactic acid bacteria are discharged into the second screening mechanism 04 and discharged through the first discharge bucket 28 through the first discharge hopper 28, and discharged through the first discharge pipe 29, and the first crushing shaft 32 is rotated by turning on the third motor 31, and the freeze-dried lactic acid bacteria are crushed by the multiple first crushing knives 33, thereby improving the practicality of the equipment. Example 2

[0030] like Figure 5 , Figure 6 and Figure 7As shown, on the basis of Example 1, it also includes a second screening mechanism 04, a second crushing mechanism 05 and a cleaning mechanism 06. The second screening mechanism 04 includes a second discharge barrel 41, a sorting screen 42, a second discharge bucket 43 and a second discharge pipe 44. The sorting screen 42 is installed in the second discharge barrel 41. The top of the second discharge bucket 43 is connected to the bottom of the second discharge barrel 41. The input end of the second discharge pipe 44 is installed on the outer wall of the second discharge bucket 43; the second crushing mechanism 05 includes a fourth motor 51, a first gear 52, a second gear 53, a rotating discharge pipe 54, a second crushing shaft 55 and a plurality of second crushing knives 56. The inner ring of the first gear 52 is installed on the output end of the fourth motor 51, the outer ring of the first gear 52 is meshed with the outer ring of the second gear 53, and the second gear 53 is meshed with the outer ring of the second gear 53. The inner ring of the wheel 53 is mounted on the outer wall of the rotating discharge pipe 54, the rotating discharge pipe 54 is rotatably mounted on the top of the second discharge barrel 41, and the rotating discharge pipe 54 is provided with two output ends, the top of the second crushing shaft 55 is mounted on the rotating discharge pipe 54, and a plurality of second crushing knives 56 are arranged on the second crushing shaft 55, and the second crushing shaft 55 is located inside the second discharge barrel 41. Preferably, the cleaning mechanism 06 includes a fifth motor 61, a rotating shaft 62, a scraper 63 and a cleaning brush 64, the bottom end of the rotating shaft 62 is mounted on the output end of the fifth motor 61, the scraper 63 is obliquely mounted on the rotating shaft 62, the cleaning brush 64 is mounted on the top of the rotating shaft 62, the rotating shaft 62 is located inside the second discharge barrel 41, and the lower end of the cleaning brush 64 contacts with the top of the sorting screen 42;

[0031] The freeze-dried lactic acid bacteria enter the second discharge barrel 41 through the input end of the rotary discharge pipe 54, and the second gear 53 is rotated by opening the first gear 52, and a second screening is performed through the sorting screen 42. The screened freeze-dried lactic acid bacteria are discharged from the second discharge bucket 43 to the second discharge pipe 44, and the second gear 53 is engaged with the rotary discharge pipe 54 to rotate the second crushing shaft 55, and the freeze-dried lactic acid bacteria are crushed for a second time by multiple second crushing knives 56. The fifth motor 61 is turned on to rotate the rotating shaft 62, so that the scraper 63 cleans the inner wall of the second discharge bucket 43, and the cleaning brush 64 cleans the sorting screen 42, thereby improving the practicality of the equipment.

[0032] like Figures 1 to 7As shown, a freeze-dried lactic acid bacteria crushing and screening device of the utility model, when working, firstly puts the freeze-dried lactic acid bacteria into the feed box 11, and respectively turns on multiple first motors 13 to squeeze the freeze-dried lactic acid bacteria through multiple squeezing rollers 12 to make the freeze-dried lactic acid bacteria enter the first screening mechanism 02, and then turns on the second motor 26 to rotate the second transmission wheel 25, and drives the first transmission wheel 24 to rotate through the transmission belt 27, and drives the screening barrel 22 to rotate through the bearing 23, and the freeze-dried lactic acid bacteria in the screening barrel 22 are screened for the first time, and the screened freeze-dried lactic acid bacteria are respectively discharged into the second screening mechanism 04 through the first discharge bucket 28 and discharged through the first discharge pipe 29, and then the third motor 31 is turned on to rotate the first crushing shaft 32, and the freeze-dried lactic acid bacteria are screened. The freeze-dried lactic acid bacteria are crushed by multiple first crushing knives 33, and then the freeze-dried lactic acid bacteria enter the second discharge barrel 41 through the input end of the rotary discharge pipe 54, and the second gear 53 is rotated by opening the first gear 52. The second crushing shaft 55 is rotated through the engagement of the second gear 53 with the rotary discharge pipe 54, and the freeze-dried lactic acid bacteria are crushed for the second time by multiple second crushing knives 56, and then screened for the second time by the sorting screen 42. The screened freeze-dried lactic acid bacteria are discharged from the second discharge bucket 43 to the second discharge pipe 44. Finally, the freeze-dried lactic acid bacteria enter the second discharge barrel 41, and are screened for the second time by the sorting screen 42. The screened freeze-dried lactic acid bacteria are discharged from the second discharge bucket 43 to the second discharge pipe 44, thereby improving the practicability of the equipment.

[0033] The first motor 13, the second motor 26, the third motor 31, the fourth motor 51 and the fifth motor 61 of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0034] The main functions achieved by the utility model are: the freeze-dried lactic acid bacteria in the first screening mechanism 02 are crushed by opening the first crushing mechanism 03, and the first screening mechanism 02 is opened to rotate to perform the first sorting of the freeze-dried lactic acid bacteria. For the freeze-dried lactic acid bacteria with smaller particles, the freeze-dried lactic acid bacteria are crushed again by opening the second crushing mechanism 05, and the sorting screen is cleaned by opening the cleaning mechanism 06 to prevent the sorting screen from being blocked, thereby improving the practicality of the equipment.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A freeze-dried lactic acid bacteria crushing and screening device, comprising a feeding mechanism (01); characterized in that: The invention also comprises a first screening mechanism (02), a first crushing mechanism (03), a second screening mechanism (04), a second crushing mechanism (05) and a cleaning mechanism (06); the feeding mechanism (01) is installed at the top end of the first screening mechanism (02); the first crushing mechanism (03) is installed inside the first screening mechanism (02); the top end of the second screening mechanism (04) is connected to the bottom end of the first crushing mechanism (03); and the second crushing mechanism (05) and the cleaning mechanism (06) are both installed inside the second screening mechanism (04).

2. A freeze-dried lactic acid bacteria crushing and screening device as claimed in claim 1, characterized in that: The feeding mechanism (01) comprises a feeding box (11), a plurality of squeezing rollers (12) and a plurality of first motors (13); the feeding box (11) is mounted on the top of the first screening mechanism (02); the right ends of the plurality of squeezing rollers (12) are respectively mounted on the output ends of the plurality of first motors (13); and the plurality of squeezing rollers (12) are respectively located in the feeding box (11).

3. A freeze-dried lactic acid bacteria crushing and screening device as claimed in claim 2, characterized in that: The first screening mechanism (02) comprises a first discharge barrel (21), a screening barrel (22), a bearing (23), a first transmission wheel (24), a second transmission wheel (25), a second motor (26), a transmission belt (27), a first discharge bucket (28) and a first discharge pipe (29), the screening barrel (22) being installed inside the first discharge barrel (21), the inner ring of the bearing (23) being installed on the top of the screening barrel (22), the inner ring of the first transmission wheel (24) being connected to the outer ring of the bearing (23), and the second transmission wheel (2 The inner ring of the first discharge bucket (28) is mounted on the output end of the second motor (26), the second motor (26) is mounted on the outer wall of the first discharge bucket (21), the transmission belt (27) is sleeved on the outer rings of the first transmission wheel (24) and the second transmission wheel (25), the top end of the first discharge bucket (28) is connected to the bottom end of the first discharge bucket (21), the input end of the first discharge pipe (29) is mounted on the outer wall of the first discharge bucket (28), and valves are respectively provided on the lower part of the first discharge bucket (28) and the first discharge pipe (29).

4. A freeze-dried lactic acid bacteria crushing and screening device as claimed in claim 3, characterized in that: The first crushing mechanism (03) comprises a third motor (31), a third motor (31) and a plurality of first crushing knives (33); the third motor (31) is mounted on the top end of the screening barrel (22); the top end of the first crushing shaft (32) is connected to the output end of the first crushing shaft (32); the first crushing shaft (32) is provided with a plurality of first crushing knives (33); and the first crushing shaft (32) is located in the screening barrel (22).

5. The freeze-dried lactic acid bacteria crushing and screening device according to claim 1, characterized in that: The second screening mechanism (04) comprises a second discharge barrel (41), a sorting screen (42), a second discharge bucket (43) and a second discharge pipe (44); the sorting screen (42) is installed in the second discharge barrel (41); the top end of the second discharge bucket (43) is connected to the bottom end of the second discharge barrel (41); and the input end of the second discharge pipe (44) is installed on the outer wall of the second discharge bucket (43).

6. A freeze-dried lactic acid bacteria crushing and screening device as claimed in claim 5, characterized in that: The second pulverizing mechanism (05) comprises a fourth motor (51), a first gear (52), a second gear (53), a rotating discharge pipe (54), a second pulverizing shaft (55) and a plurality of second pulverizing knives (56); the inner ring of the first gear (52) is mounted on the output end of the fourth motor (51); the outer ring of the first gear (52) is meshed with the outer ring of the second gear (53); the inner ring of the second gear (53) is mounted on the outer wall of the rotating discharge pipe (54); the rotating discharge pipe (54) is rotatably mounted on the top end of the second discharge barrel (41); the rotating discharge pipe (54) is provided with two output ends; the top end of the second pulverizing shaft (55) is mounted on the rotating discharge pipe (54); the second pulverizing shaft (55) is provided with a plurality of second pulverizing knives (56); and the second pulverizing shaft (55) is located inside the second discharge barrel (41).

7. A freeze-dried lactic acid bacteria crushing and screening device as claimed in claim 5, characterized in that: The cleaning mechanism (06) comprises a fifth motor (61), a rotating shaft (62), a scraper (63) and a cleaning brush (64), wherein the bottom end of the rotating shaft (62) is mounted on the output end of the fifth motor (61), the scraper (63) is obliquely mounted on the rotating shaft (62), the cleaning brush (64) is mounted on the top end of the rotating shaft (62), the rotating shaft (62) is located inside the second discharge barrel (41), and the bottom end of the cleaning brush (64) is in contact with the top end of the sorting screen (42).

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