CN115489819A - Milk powder production device and production process - Google Patents

Abstract

The invention discloses a milk powder production device and a milk powder production process, which comprise a third support frame, wherein the top of the third support frame is provided with a first stainless steel chain rod conveyer, the top of the third support frame is provided with a second stainless steel chain rod conveyer, one side of the second stainless steel chain rod conveyer is provided with a discharging pipe, and one side of the third support frame is provided with a bottom plate, and the milk powder production device has the beneficial effects that: through having added feeding mechanism, realized that the chute feeder carries out the ration to the raw materials after screening in the screening incasement and carries the processing, carry the processing to the powder through the blowing pipe, through having added ultraviolet germicidal lamp, no. two ultraviolet germicidal lamp, realized the germicidal treatment in advance to the raw materials, through having added mixing arm, puddler, carry out the hybrid processing to the powder in ventilation chamber and the small powder mixing bunker simultaneously, improved production efficiency.

Description

Milk powder production device and production process

Technical Field

The invention relates to the technical field of milk powder, in particular to a milk powder production device and a milk powder production process.

Background

The milk powder is powder prepared by taking milk of cows, sheep or other animals as a raw material through processes of disinfection, degreasing, dehydration, drying and the like, the milk powder is a reprocessed product rather than an original food, is suitable for storage and convenient carrying, is added with a proper amount of nutrient components such as vitamins, mineral substances and the like, and can be used for brewing and drinking, food processing, canned beverages and the like.

Disclosure of Invention

The invention aims to provide a milk powder production device and a milk powder production process, which aim to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a milk powder production device comprises a third support frame, wherein a first stainless steel chain rod conveyer is arranged at the top of the third support frame, a second stainless steel chain rod conveyer is arranged at the top of the third support frame, a blanking pipe is arranged on one side of the second stainless steel chain rod conveyer, a bottom plate is arranged on one side of the third support frame, a bottom box is arranged at the top of the bottom plate, a screening box is arranged at the top of the bottom box, a feeding pipe matched with the blanking pipe is arranged at the top of the screening box, a feeding mechanism matched with the screening box is arranged in the bottom box, two resetting mechanisms are arranged in the screening box, a screen is arranged at the top of the two resetting mechanisms, a mixing box is arranged at the top of the bottom plate, the improved air-conditioning mixing box is characterized in that the bottom box is connected with the mixing box through a conveying pipe, a blowing pipe is arranged inside the bottom box, a fan No. two is arranged at the top of the bottom box, a filtering air pipe is arranged at the input end of the fan No. two, the output end of the fan No. two is connected with the blowing pipe through an air pipe, a mixing rod is connected to the inside of the mixing box in a rotating mode, a ventilation cavity is formed in the mixing box, an air outlet pipe is arranged inside the mixing box, the air outlet pipe is communicated with the ventilation cavity, a fan is arranged on one side of the mixing box, the output end of the fan is connected with the ventilation cavity through an air pipe, a filtering air inlet pipe is arranged at the input end of the fan, a buffer box is arranged at the top of the bottom plate, and the buffer box is connected with the mixing box through an air pipe.

Preferably, the top fixedly connected with support frame of a stainless steel chain link conveyer, the inboard symmetry of support frame is equipped with the ventilation case, one side of ventilation case is equipped with ultraviolet germicidal lamp tube No. one, one side of ventilation case is equipped with the dust absorption tuber pipe, the top of support frame is equipped with the dust catcher, the dust catcher passes through the tuber pipe with the ventilation case and is connected.

Preferably, the top of the second stainless steel chain conveyor is provided with a second support frame, and twenty-four second ultraviolet sterilizing lamp tubes are arranged inside the second support frame.

Preferably, canceling release mechanical system is including fixed case, two fixed casees of inside fixedly connected with of screening case, the inside sliding connection of fixed case has the link, link and screen cloth fixed connection, the inside of fixed case is equipped with the spring, the one end and the link fixed connection of spring, the inside rotation of screening case is connected with screen cloth complex eccentric wheel, one side of screening case is equipped with No. two motors, the output and the eccentric wheel fixed connection of No. two motors, the inside of screening case be equipped with screen cloth complex storage cylinder.

Preferably, the feeding mechanism comprises a rotating disc, the rotating disc is rotatably connected to the inside of the bottom box, two feeding grooves matched with the screening boxes are symmetrically formed in the outer side of the rotating disc, a third motor is arranged inside the bottom box, and the output end of the third motor is fixedly connected with the rotating disc.

Preferably, the top of blending box is equipped with the small powder and mixes the storehouse, the top that the small powder mixes the storehouse is equipped with drive mechanism, drive mechanism includes supporting box, the top that the small powder mixes the storehouse is equipped with supporting box, supporting box's inside is rotated and is connected with two belt pulleys, two connect through belt transmission between the belt pulley, supporting box's top is equipped with a motor, one of them the belt pulley is connected with the output fixed connection of a motor, one of them belt pulley and mixing rod fixed connection, mixing rod and supporting box rotate to be connected, the inside of small powder mixes the storehouse is rotated and is connected with the puddler, another belt pulley and puddler fixed connection, the inside of supporting box is equipped with the small material pipe, the small material pipe mixes the storehouse intercommunication with the small powder, the small powder mixes storehouse and blending box intercommunication.

Preferably, the inside of buffer box is equipped with the metal detector, the top of bottom plate is equipped with the feed bin body, the buffer box passes through duct connection with the feed bin body.

Preferably, the top of the bottom plate is provided with a canning conveyor matched with the bin body.

Preferably, one side of the third support frame is provided with a control panel, and the first stainless steel chain rod conveyor, the first ultraviolet sterilizing lamp tube, the third motor, the first fan, the metal detector, the second fan, the second stainless steel chain rod conveyor, the canning conveyor, the second ultraviolet sterilizing lamp tube and the second motor are all electrically connected with the control panel.

A milk powder production process comprises the following steps:

s1, removing floating dust around the outer package, and performing primary sterilization through an ultraviolet lamp;

s2, removing the outer package, and sterilizing the inner bag by ultraviolet irradiation again;

s3, screening the milk powder raw material, then putting the milk powder raw material into a pneumatic conveying bin, and conveying compressed air to a temporary storage bin;

s4, feeding the raw materials in the metering bin and the small material bin into a pneumatic mixing bin together for pneumatic uniform mixing;

s5, detecting whether metal exists in the powder after mixing, if a metal signal is detected, completely removing the powder, and enabling the detected powder to enter a main bin and a supplementary bin of a powder filling and packaging machine to wait for packaging;

S6, conveying the iron cans to a static electricity removing and can turning machine through an automatic unstacking machine;

s7, when the packaged iron cans are fed into the lower part of the main filling bin, stopping powder supply and filling until the powder is filled to the set weight percent, then feeding the packaged iron cans into the lower part of the supplementary filling hopper, accurately supplementing the rest percent of powder, and weighing the filled packages;

s8, conveying the iron cans to a cover placing mechanism, placing a bottom cover, and continuing rotating to a pressing wheel sealing mechanism to tightly push the iron cans;

s9, carrying out vacuum-pumping nitrogen-filling treatment, and then sealing the bottom cover and the iron can into a whole;

s10, photographing and comparing the sealed edges through an industrial camera, and performing qualified detection;

s11, cleaning the floating powder adsorbed on the tank body, and then marking and warehousing the product by a laser coding machine.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Compared with the prior art, the invention has the beneficial effects that: through having added feeding mechanism, realized that the chute feeder carries out quantitative transport processing to the raw materials after sieving in the screening incasement, carry the processing to the powder through the blowing pipe, through having added sterilamp, no. two sterilamp, the pre-sterilization to the raw materials has been realized, through having added the hybrid beam, the puddler, carry out hybrid processing to the powder in ventilation chamber and the small powder mixing bunker simultaneously, and the production efficiency is improved, through having added the metal detector, realized carrying out metal detection to mixing the back material and handling.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is an enlarged view taken at A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of the invention at B in FIG. 1;

fig. 4 is a side view of the eccentric of the present invention.

In the figure: 1. a first stainless steel link conveyor; 2. a first support frame; 3. a ventilation box; 4. a dust collection air pipe; 5. a first ultraviolet germicidal lamp tube; 6. a third support frame; 7. a reset mechanism; 71. a fixed box; 72. a spring; 73. a connecting frame; 8. a feeding mechanism; 81. rotating the disc; 82. a third motor; 83. a feeding groove; 9. a transmission mechanism; 91. a support box; 92. a belt pulley; 93. a first motor; 10. a small material mixing bin; 11. a bottom box; 12. screening the box; 13. a stock bin body; 14. a second support frame; 15. a first fan; 16. a dust collector; 17. a mixing rod; 18. a metal detector; 19. a mixing box; 20. a buffer tank; 21. a ventilation cavity; 22. an air outlet pipe; 23. screening a screen; 24. a storage cylinder; 25. a second fan; 26. a blowpipe; 27. filtering the air pipe; 28. a second stainless steel link conveyor; 29. a canning conveyor; 30. a second ultraviolet germicidal lamp tube; 31. a discharging pipe; 32. a second motor; 33. an eccentric wheel; 34. a feed pipe; 35. a base plate; 36. a control panel.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of devices consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1:

referring to fig. 1 to 4, a milk powder production apparatus according to an embodiment of the present invention includes a third support frame 6, a first stainless steel chain conveyor 1 is disposed on the top of the third support frame 6, a second stainless steel chain conveyor 28 is disposed on the top of the third support frame 6, a discharging pipe 31 is disposed on one side of the second stainless steel chain conveyor 28, a bottom plate 35 is disposed on one side of the third support frame 6, a bottom box 11 is disposed on the top of the bottom plate 35, a sieving box 12 is disposed on the top of the bottom box 11, a feeding pipe 34 matched with the discharging pipe 31 is disposed on the top of the sieving box 12, a feeding mechanism 8 matched with the sieving box 12 is disposed inside the bottom box 11, two resetting mechanisms 7 are disposed inside the sieving box 12, a screen 23 is disposed on the top of the two resetting mechanisms 7, a mixing box 19 is disposed on the top of the bottom plate 35, the bottom box 11 is connected to the mixing box 19 through a conveying pipe, the inside of under casing 11 is equipped with blowing pipe 26, the top of under casing 11 is equipped with No. two fans 25, the input of No. two fans 25 is equipped with filtering air pipe 27, no. two fans 25's output passes through the tuber pipe with blowing pipe 26 and is connected, mixing box 19's inside is rotated and is connected with puddler 17, ventilation chamber 21 has been seted up to mixing box 19's inside, mixing box 19's inside is equipped with out tuber pipe 22, it communicates with ventilation chamber 21 to go out tuber pipe 22, one side of mixing box 19 is equipped with fan 15, no. one fan 15's output passes through the tuber pipe with ventilation chamber 21 and is connected, no. one fan 15's input is equipped with the filtration air-supply line, the top of bottom plate 35 is equipped with baffle box 20, baffle box 20 passes through the tuber pipe with mixing box 19 and is connected, enter ventilation chamber 21 through a fan 15 convulsions air draft, the wind in the ventilation chamber 21 blows out through going out tuber pipe 22, carry out pneumatic hybrid to inside raw materials.

Example 2:

wherein, support frame 2 of top fixedly connected with of a stainless steel chain pole conveyer 1, the inboard symmetry of support frame 2 is equipped with ventilation case 3, one side of ventilation case 3 is equipped with ultraviolet germicidal lamp 5 No. one, one side of ventilation case 3 is equipped with dust absorption tuber pipe 4, the top of support frame 2 is equipped with dust catcher 16, dust catcher 16 passes through the tuber pipe with ventilation case 3 and is connected, dust catcher 16 removes dust through dust absorption tuber pipe 4 to the dust of outer packing, carry out germicidal treatment through ultraviolet germicidal lamp 5 to the outer packing, get rid of the outer packing.

The top of the second stainless steel chain conveyor 28 is provided with a second support frame 14, the inside of the second support frame 14 is provided with twenty-four second ultraviolet sterilizing lamp tubes 30, and the second stainless steel chain conveyor 28 conveys the inner packages and performs sterilization treatment through the second ultraviolet sterilizing lamp tubes 30.

The reset mechanism 7 comprises a fixed box 71, two fixed boxes 71 are fixedly connected inside the screening box 12, a connecting frame 73 is connected inside the fixed box 71 in a sliding mode, the connecting frame 73 is fixedly connected with the screen 23, a spring 72 is arranged inside the fixed box 71, one end of the spring 72 is fixedly connected with the connecting frame 73, an eccentric wheel 33 matched with the screen 23 is connected inside the screening box 12 in a rotating mode, a motor 32 is arranged on one side of the screening box 12, the output end of the motor 32 is fixedly connected with the eccentric wheel 33, a storage cylinder 24 matched with the screen 23 is arranged inside the screening box 12, the output end of the motor 32 drives the eccentric wheel 33 to rotate, the eccentric wheel 33 jacks the screen 23, the screen 23 drives the connecting frame 73 to move downwards and press the spring 72, and the operation is repeated.

Wherein, feeding mechanism 8 includes rolling disc 81, the inside of under casing 11 is rotated and is connected with rolling disc 81, two and screening case 12 complex chute feeder 83 have been seted up to rolling disc 81's outside symmetry, the inside of under casing 11 is equipped with No. three motor 82, no. three motor 82's output and rolling disc 81 fixed connection, no. three motor 82's output drives rolling disc 81 and rotates, carry out the ration through chute feeder 83 to the raw materials and carry, when moving to the opposite side, blow in mixing box 19 through No. two fan 25 with the raw materials in the chute feeder 83, carry out the dosing according to the small powder in the small powder mixing bunker 10 and handle.

The small material mixing bin 10 is arranged at the top of the mixing box 19, the transmission mechanism 9 is arranged at the top of the small material mixing bin 10, the transmission mechanism 9 comprises a supporting box 91, a supporting box 91 is arranged at the top of the small material mixing bin 10, two belt pulleys 92 are connected to the supporting box 91 in a rotating mode, the two belt pulleys 92 are connected through belt transmission, a motor 93 is arranged at the top of the supporting box 91, one belt pulley 92 is fixedly connected with an output end of the motor 93, one belt pulley 92 is fixedly connected with the mixing rod 17, the mixing rod 17 is rotatably connected with the supporting box 91, the small material mixing bin 10 is connected with a stirring rod in an internal rotating mode, the other belt pulley 92 is fixedly connected with the stirring rod, a small material pipe is arranged inside the supporting box 91 and is communicated with the small material mixing bin 10, the small material mixing bin 10 is communicated with the mixing box 19, the output end of the motor 93 drives one belt pulley 92 to rotate, one belt pulley 92 drives the other belt pulley 92 to rotate through a belt, the mixing rod 17 and the stirring rod are driven to rotate simultaneously, and the production efficiency is improved.

Wherein, the inside of buffer tank 20 is equipped with metal detector 18, and the top of bottom plate 35 is equipped with feed bin body 13, and buffer tank 20 passes through duct connections with feed bin body 13, detects through metal detector 18, carries out the metal detection, gets into in the feed bin body 13 after detecting.

Wherein, the top of bottom plate 35 is equipped with and feed bin body 13 complex canning conveyer 29, carries out the filling through the iron ladle of canning conveyer 29 transport and handles.

Wherein, one side of No. three support frames 6 is equipped with control panel 36, no. 1 stainless steel chain rod conveyer, ultraviolet germicidal lamp 5, no. three motor 82, no. one motor 93, a fan 15, metal detector 18, no. two fans 25, no. two stainless steel chain rod conveyer 28, canning conveyer 29, no. two ultraviolet germicidal lamp 30 and No. two motor 32 all with control panel 36 electric connection, control the processing through control panel 36 to the device is centralized, the security and the work efficiency of device use have been improved.

Example 3:

a milk powder production process comprises the following steps:

s1, removing floating dust around the outer package, and performing primary sterilization through an ultraviolet lamp;

s2, removing the outer package, and irradiating and sterilizing the inner bag through ultraviolet rays again to effectively kill bacterial microorganisms on the surface of the inner bag and ensure that the raw material entering a clean area is packaged without pollution risk;

S3, screening the milk powder raw material, then putting the milk powder raw material into a pneumatic conveying bin, and conveying compressed air to a temporary storage bin;

s4, feeding the raw materials in the metering bin and the small material bin into a pneumatic mixing bin together for pneumatic uniform mixing, and feeding the raw materials in the metering bin and the small material bin into the pneumatic mixing bin together for pneumatic uniform mixing after the small materials mixed in the small material mixing bin are finished;

s5, detecting whether metal exists in the powder after mixing, if a metal signal is detected, completely removing the powder, and enabling the detected powder to enter a main stock bin and a supplementary stock bin of a powder filling and packaging machine to wait for packaging;

s6, conveying the iron cans to a static electricity removing and can turning machine through an automatic unstacking machine;

s7, when the packaging iron cans are fed into the lower part of the main filling bin, powder supply and filling are stopped when the powder is filled to 90% of the set weight, then the packaging iron cans enter the lower part of a supplementary filling hopper, the remaining 10% of powder is accurately supplemented, the filled packages are weighed, abnormal weight is removed, and the packaging iron cans are conveyed to a can sealing process after being qualified;

s8, conveying the iron cans to a cover placing mechanism, placing a bottom cover, and continuing rotating to a pressing wheel sealing mechanism to tightly push the iron cans;

s9, vacuumizing and filling nitrogen, sealing the bottom cover and the iron can into a whole, enabling the iron can to enter equipment through a conveying belt, placing the iron can into the bottom cover, continuing to rotate to a pressing wheel sealing mechanism, lifting the iron can by a lifting mechanism after the iron can is detected in place, vacuumizing and filling nitrogen by a vacuum system, sealing the pressing wheel sealing mechanism after the pressure value in the iron can is reached, sealing the bottom cover and the iron can into a whole, and rotating a can sealing machine after sealing is finished;

S10, photographing and comparing the sealed edges through an industrial camera, performing qualified detection, photographing and comparing the sealed edges, screening and removing products which are not sealed well, and continuously conveying the qualified products to a cleaning machine around the tank;

s11, cleaning the floating powder adsorbed on the tank body, marking and warehousing the product by a laser coding machine, marking production date information, detecting the marked product by a three-stage detection system, manually loading the finally qualified product into a packaging box, entering a whole box acquisition association system to carry out whole box coding, printing box codes on the coded product, adhering the coded product to an outer box, and finally stacking and warehousing.

Example 4:

a1, electrifying through an external power supply, starting a first stainless steel chain rod conveyor 1, conveying the first stainless steel chain rod conveyor 1, starting a dust collector 16 through a control panel 36, dedusting dust of an outer package through a dust collection air pipe 4 by the dust collector 16, sterilizing the outer package through a first ultraviolet sterilizing lamp tube 5, removing the outer package, starting a second stainless steel chain rod conveyor 28 through the control panel 36, conveying the inner package, and sterilizing through a second ultraviolet sterilizing lamp tube 30;

A2, the raw materials inside enter the feeding pipe 34 through the discharging pipe 31 and reach the screen 23, the second motor 32 is started through the control panel 36, the output end of the second motor 32 drives the eccentric wheel 33 to rotate, the eccentric wheel 33 jacks the screen 23, the screen 23 drives the connecting frame 73 to move downwards and presses the spring 72, and the reciprocating operation is carried out;

a3, the screened raw materials fall into a feeding groove 83, an output end of a third motor 82 drives a rotating disc 81 to rotate, the raw materials are quantitatively conveyed through the feeding groove 83, when the raw materials move to the other side, a second fan 25 is started through a control panel 36, the raw materials in the feeding groove 83 are blown into a mixing box 19 through the second fan 25, and quantitative batching processing is carried out according to small materials in a small material mixing bin 10;

a4, through 15 convulsions entering ventilation chamber 21 of a fan, wind in the ventilation chamber 21 blows off through going out tuber pipe 22, the while passes through control panel 36 and starts a motor 93, the output of a motor 93 drives one of them belt pulley 92 and rotates, one of them belt pulley 92 drives another belt pulley 92 through the belt and rotates, it rotates to drive puddler 17 and puddler simultaneously, carry out pneumatic hybrid processing to the powder in the compounding case 19, the powder gets into in the baffle-box 20 under the effect of blowing, detect through metal detector 18, carry out the metal detection, go into this body 13 of feed bin after detecting, the iron that carries through tinning conveyer 29 carries out the filling and handles.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice in the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.

Claims (10)

1. The utility model provides a milk powder production device, includes No. three support frames (6), its characterized in that, the top of No. three support frames (6) is equipped with stainless steel chain pole conveyer (1) No. one, the top of No. three support frames (6) is equipped with No. two stainless steel chain pole conveyer (28), one side of No. two stainless steel chain pole conveyer (28) is equipped with unloading pipe (31), one side of No. three support frames (6) is equipped with bottom plate (35), the top of bottom plate (35) is equipped with under casing (11), the top of under casing (11) is equipped with screening case (12), the top of screening case (12) be equipped with unloading pipe (31) complex inlet pipe (34), the inside of under casing (11) is equipped with and screens case (12) complex feeding mechanism (8), the inside of screening case (12) is equipped with two canceling release mechanical system (7), two the top of canceling release mechanical system (7) is equipped with screen cloth (23), the top of bottom plate (35) is equipped with mixing box (19), under casing (11) is equipped with mixing box (19) and mixing box (19) is connected through No. two fan output terminals (26), fan (26) are connected through fan (26), fan output terminal (26), fan (26) are connected the top of No. two The utility model discloses a fan, mixing box (19) is connected with mixing rod (17) to the inside rotation of mixing box (19), ventilation chamber (21) have been seted up to the inside of mixing box (19), the inside of mixing box (19) is equipped with out tuber pipe (22), it communicates with ventilation chamber (21) to go out tuber pipe (22), one side of mixing box (19) is equipped with fan (15), the output and the ventilation chamber (21) of fan (15) are connected through the tuber pipe, the input of fan (15) is equipped with the filtration air-supply line, the top of bottom plate (35) is equipped with baffle-box (20), baffle-box (20) are connected through the tuber pipe with mixing box (19).

2. The milk powder production device according to claim 1, wherein a first support frame (2) is fixedly connected to the top of the first stainless steel chain rod conveyor (1), a ventilation box (3) is symmetrically arranged on the inner side of the first support frame (2), a first ultraviolet sterilizing lamp tube (5) is arranged on one side of the ventilation box (3), a dust suction air pipe (4) is arranged on one side of the ventilation box (3), a dust suction machine (16) is arranged on the top of the first support frame (2), and the dust suction machine (16) is connected with the ventilation box (3) through an air pipe.

3. A milk powder producing device according to claim 2, wherein the second stainless steel chain conveyor (28) is provided with a second support frame (14) at the top, and twenty-four second uv sterilizing lamps (30) are arranged inside the second support frame (14).

4. A milk powder production device according to claim 3, wherein the reset mechanism (7) comprises a fixed box (71), two fixed boxes (71) are fixedly connected inside the sieving box (12), a connecting frame (73) is slidably connected inside the fixed box (71), the connecting frame (73) is fixedly connected with the sieve (23), a spring (72) is arranged inside the fixed box (71), one end of the spring (72) is fixedly connected with the connecting frame (73), the sieving box (12) is rotatably connected with an eccentric wheel (33) matched with the sieve (23), one side of the sieving box (12) is provided with a motor (32), the output end of the motor (32) is fixedly connected with the eccentric wheel (33), and a storage cylinder (24) matched with the sieve (23) is arranged inside the sieving box (12).

5. A milk powder production device according to claim 4, wherein the feeding mechanism (8) comprises a rotating disc (81), the rotating disc (81) is rotatably connected inside the bottom box (11), two feeding grooves (83) matched with the screening box (12) are symmetrically formed in the outer side of the rotating disc (81), a third motor (82) is arranged inside the bottom box (11), and the output end of the third motor (82) is fixedly connected with the rotating disc (81).

6. A milk powder production device according to claim 5, wherein a small material mixing bin (10) is arranged at the top of the mixing box (19), a transmission mechanism (9) is arranged at the top of the small material mixing bin (10), the transmission mechanism (9) comprises a supporting box (91), a supporting box (91) is arranged at the top of the small material mixing bin (10), two belt pulleys (92) are rotatably connected inside the supporting box (91), the two belt pulleys (92) are connected through belt transmission, a motor (93) is arranged at the top of the supporting box (91), one belt pulley (92) is fixedly connected with the output end of the motor (93), one belt pulley (92) is fixedly connected with the mixing rod (17), the mixing rod (17) is rotatably connected with the supporting box (91), a stirring rod is rotatably connected inside the small material mixing bin (10), the other belt pulley (92) is fixedly connected with the stirring rod, a small material pipe is arranged inside the supporting box (91), and the small material mixing pipe (10) is communicated with the mixing bin (19).

7. The milk powder production device according to claim 6, wherein a metal detector (18) is arranged inside the buffer box (20), a bin body (13) is arranged on the top of the bottom plate (35), and the buffer box (20) is connected with the bin body (13) through a conveying pipe.

8. A milk powder production device according to claim 7, wherein the top of the bottom plate (35) is provided with a filling conveyor (29) cooperating with the silo body (13).

9. The milk powder production device according to claim 8, wherein a control panel (36) is arranged on one side of the third support frame (6), and the first stainless steel chain link conveyor (1), the first ultraviolet sterilizing lamp tube (5), the third motor (82), the first motor (93), the first fan (15), the metal detector (18), the second fan (25), the second stainless steel chain link conveyor (28), the canning conveyor (29), the second ultraviolet sterilizing lamp tube (30) and the second motor (32) are all electrically connected with the control panel (36).

10. A milk powder production process according to any one of claims 1-9, comprising the steps of:

s1, removing floating dust around the outer package, and performing primary sterilization through an ultraviolet lamp;

S2, removing the outer package, and irradiating and sterilizing the inner bag by ultraviolet rays again;

s3, screening the milk powder raw material, then putting the milk powder raw material into a pneumatic conveying bin, and conveying compressed air to a temporary storage bin;

s4, feeding the raw materials in the metering bin and the small material bin into a pneumatic mixing bin together for pneumatic uniform mixing;

s5, detecting whether metal exists in the powder after mixing, if a metal signal is detected, completely removing the powder, and enabling the detected powder to enter a main bin and a supplementary bin of a powder filling and packaging machine to wait for packaging;

s6, conveying the iron cans to a static electricity removing can turnover machine through an automatic unstacking machine;

s7, when the packaging iron cans are fed into the lower part of the main filling bin, powder supply and filling are stopped when the powder is filled to 90% of the set weight, then the packaging iron cans enter the lower part of a supplementary filling hopper, the remaining 10% of powder is accurately supplemented, and the filled packages are weighed;

s8, conveying the iron cans to a cover placing mechanism, placing a bottom cover, and continuing rotating to a pressing wheel sealing mechanism to tightly push the iron cans;

s9, carrying out vacuum-pumping nitrogen-filling treatment, and then sealing the bottom cover and the iron can into a whole;

s10, photographing and comparing the sealed edges through an industrial camera, and performing qualified detection;

s11, cleaning the floating powder adsorbed on the tank body, and then marking and warehousing the product by a laser coding machine.

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