CN109127006B

CN109127006B - Wheat cold-making flour processing technology

Info

Publication number: CN109127006B
Application number: CN201810772327.9A
Authority: CN
Inventors: 刘仓; 樊劲军; 张飞; 梁农; 李俊峰; 王开业; 王建忠
Original assignee: Inner Mongolia Hetao Wheat Industrialization Research Institute; Inner Mongolia Zhaofeng Hetao Flour Industry Co ltd
Current assignee: Beijing Zhaofeng Seed Industry Co ltd
Priority date: 2018-07-13
Filing date: 2018-07-13
Publication date: 2021-03-02
Anticipated expiration: 2038-07-13
Also published as: CN109127006A

Abstract

The invention relates to the technical field of flour manufacturing, in particular to a processing technology for cold milling of wheat. The invention provides a processing technology for cold milling wheat flour, which comprises four processing steps of material mixing, rolling and crushing, flour cleaning and flour distribution, wherein in the rolling and crushing processing steps, a skin rolling process, a slag rolling process, a core rolling process, a tail rolling process and a flour cleaning process adopt the matching of rolling rollers on a rolling disc, the rolling rollers can roll clockwise or anticlockwise on the surface of the rolling disc, the rolling and crushing treatment is carried out on the wheat by utilizing the gravity of the rolling disc and the shearing force of relative rotation between the rolling disc and the rolling rollers, the vertical gravity rolling and the horizontal forward rolling are continuously carried out on the wheat, and the temperature in the rolling process of the rolling rollers is always kept at the normal temperature state, so that the problems that components of the wheat are damaged and lost in the high-temperature processing process can be solved, and the quality of milling the wheat can be improved.

Description

Wheat cold-making flour processing technology

Technical Field

The invention relates to the technical field of flour manufacturing, in particular to a wheat cold-making flour processing technology.

Background

At present, in the industrialized wheat flour milling process, a flat iron roller or a stone mill is adopted for grinding wheat grains, and the grinding process comprises two rollers, four rollers and eight rollers and comprises single-side grinding and double-side grinding. The grinding roller of the iron roller pulverizer adopts a toothed roller and a smooth roller for mixed grinding, and also adopts a pure toothed roller for double-roller grinding. The powder-making process of the iron roller flour mill generally adopts the following steps: four-path leather grinding, six-path core grinding, two-path slag grinding and two-path tail grinding. The four leather mills adopt toothed rollers, and the core mill, the slag mill and the tail mill adopt smooth rollers. The first leather mill (1B) and the second leather mill (2B) do not have different thicknesses; the three-leather mill and the four-leather mill have the thickness division, namely: coarse grinding three skins (3Bc), fine grinding three skins (3Bf), coarse grinding four skins (4Bc) and fine grinding four skins (4 Bf); the heart mill comprises the following components: a first-heart mill (1M), a second-heart mill (2M), a third-heart mill (3M), a fourth-heart mill (4M), a fifth-heart mill (5M) and a sixth-heart mill (6M); the slag mill is divided into a first slag mill (1S) and a second slag mill (2S); the tail mill is divided into a first tail mill (1T) and a second tail mill (2T). The general tooth number of the front leather mill is 4.7 teeth/cm, and the general tooth number of the middle and rear leather mills is 7.9 teeth/cm; the roughness of the front-path core polishing roller is generally (1.6-2.5cm), and the roughness of the rear-path core polishing roller is generally (1.5-1.8 cm); the roughness of the slag mill and the tail mill is generally selected according to the front path core mill.

In the wheat grain grinding process, the iron rollers are longitudinally arranged side by side, the wheat falls between the iron rollers, the wheat is extruded to form wheat flour through the relative rotation of the two iron rollers, the contact time of the wheat between the iron rollers is about 0.5 second, the material is fully ground in a short time, sufficient extrusion force is required to be guaranteed to crush and crush the crushed wheat, the rolling distance between the two rollers needs to be reduced at the moment, and meanwhile, the rotating speed is increased to enable the material to be subjected to certain shearing force and extrusion friction force when passing through. The powder process adopts the horizontally arranged iron roller for grinding, and has the following defects: the temperature is too high (about 40 ℃) in the process of grinding the materials; the rotating speed of the grinding roller is fast (about 600 revolutions per minute), the retention time (about 0.5 second) of the materials between the two iron rollers is short, and the contact time can not be controlled and adjusted. Therefore, the original nutrient components of the materials (such as starch, cellulose, protein and the like) are damaged in the high-temperature, high-speed and short-time processing process of the materials. Starch is converted into sugar at high temperature, so that the flour has short stabilization time, the finished product tastes sticky, and the appearance of the flour product has a wrinkle phenomenon; meanwhile, proteins are also denatured at high temperature to lose the water swelling function. The skin mill is provided with the toothed roller, so that the wheat starch branched chains are seriously damaged in the processing process, and the ductility and plasticity of the food made of the flour are reduced; meanwhile, trace elements beneficial to human bodies, such as vitamin A, vitamin B1, vitamin B2, folic acid, pantothenic acid and the like, are damaged and lost in the high-temperature processing process. The quality of the wheat flour is affected by the falling stone powder due to the abrasion of the teeth on the stone mill during the grinding of the stone mill.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: currently, the wheat flour milling is generally carried out by adopting an iron roller and a stone mill: the grinding roller has high rotating speed, high temperature and short wheat retention time in the process of grinding wheat flour by using the iron roller, the wheat changes the components of the flour at high temperature, and the starch branched chain structure of the small face is damaged in the grinding process, so that the quality of the flour is reduced; in the process of grinding wheat flour by the stone mill, stone powder falls off due to mutual occlusion, collision and friction, and the stone powder is mixed into the wheat flour to influence the taste of the wheat, so that the quality of the wheat flour is reduced.

(II) technical scheme

In order to solve the technical problem, the invention provides a wheat cold milling processing technology, which comprises the following steps:

a, preparing materials: selecting wheat to clean and removing impurities;

b, rolling and crushing: comprises a skin grinding process, a slag grinding process, a core grinding process and a tail grinding process; the wheat bran rolling process comprises a bran rolling process, a slag rolling process, a core rolling process, a tail rolling process and a flour cleaning process, wherein the bran rolling process, the slag rolling process, the core rolling process, the tail rolling process and the flour cleaning process are all matched by adopting rolling rollers on a rolling disc, the rolling rollers can roll clockwise or anticlockwise on the surface of the rolling disc, the wheat rolling and crushing treatment is carried out by utilizing the gravity of the rolling disc and the shearing force of relative rotation between the rolling disc and the rolling rollers, the relative rotating speed between the rolling rollers and the rolling disc is 30-40 r/min, and the time of the wheat staying on the surface of the rolling disc and contacting with the rolling rollers is 10-20 seconds;

c, clearing powder: the materials with the same granularity, namely three materials with different textures, namely pure endosperm particles, fine bran particles and bran-less endosperm particles, are effectively separated by a purifier through the combined action of vibration throwing and air sieving, so that the materials are uniformly combined and are respectively sent to different milling procedures for rolling and sieving again;

d, preparing powder: and distributing the screened wheat flour with different grades.

The invention has the beneficial effects that: the invention provides a processing technology for cold milling of wheat, which comprises four process steps of batching, rolling and crushing, flour cleaning and flour distribution, wherein in the rolling and crushing process steps, a skin rolling process, a slag rolling process, a core rolling process, a tail rolling process and a flour cleaning process all adopt the matching of rolling rollers on a rolling disc, the rolling rollers can roll clockwise or anticlockwise on the surface of the rolling disc, the rolling and crushing treatment is carried out by utilizing the gravity of the rolling disc and the relative rotating shearing force between the rolling disc and the rolling rollers, the vertical gravity rolling and the horizontal forward rolling are continuously carried out on the wheat, a vibrating mechanism is additionally arranged on the rolling rollers, the rolling rollers are enabled to vibrate to generate the vibrating force to slightly impact and crush the wheat into flour when turning over and compressing the wheat, the contact time of the surface of the wheat on the rolling disc and the rolling rollers is 10-20 seconds, and the flour is adjusted by a flour distributing brush; the horizontal rotation speed of the grinding roller is 30-40 r/min, and the rotation speed is about 1/20 of the rotation speed of the modern steel grinding roller, so that the cold grinding processing technology of low-speed grinding, light grinding and light collision and low-temperature processing is formed;

the staying contact time of the materials on each grinding disc is about 10-20 seconds and can be adjusted, so that the materials are ground for a sufficient time, a vibration mechanism is additionally arranged, the gravity grinding force of the grinding rollers on the materials can be better and automatically adjusted, the thickness of the materials on the disc surface of the grinding disc is always kept about 4-6mm, the rolling distance and the pressure between the grinding rollers and the grinding disc are always kept in the optimal state, the rotating speed of the grinding rollers is low, heat cannot be generated in the grinding process, and the temperature of the materials is kept in the normal temperature state for a long time; starch can not be converted into sugar at normal temperature, and protein can not be denatured at normal temperature to lose water-absorbing expansion function. The skin roller is a smooth roller, the wheat amylopectin is slightly damaged in the rolling process, the original nutrient components in the wheat are not lost, and trace elements beneficial to human bodies, such as vitamin A, vitamin B1, B2, vitamin E, folic acid, pantothenic acid, carotene and the like, are fully reserved; the extensibility and plasticity in the process of making the flour food are fully ensured, and the wheaten food has flexible mouthfeel, rich wheat flavor and rich nutrition. In addition, as the flour is milled by the milling roller, the surface of the milling roller is smooth, so that the collision abrasion between the milling roller and the milling disc is small, the abrasion rate is almost zero, other substances cannot enter the wheat flour, and the purity and the quality of the flour are greatly guaranteed.

Further, the rolling and crushing process in the step B comprises five skin-rolling processes, nine core-rolling processes, four slag-rolling processes and two tail-rolling processes; the five skin grinding procedures, the nine core grinding procedures, the four slag grinding procedures and the two tail grinding procedures all adopt wheat cold flour making equipment;

the wheat cold flour making equipment comprises the rolling disc, the rolling rollers, a support frame, a driving mechanism and a shell, wherein an accommodating cavity is formed in the shell; the shell is provided with a feed inlet and a discharge outlet which are communicated with the containing cavity.

Further, the surface roughness of the outer surface of the rolling roller of the wheat cold flour making equipment in the five skin rolling processes is 3.6-5.2 μm; the surface roughness of the outer surface of the rolling roller of the wheat cold milling equipment in the first three-pass central milling process is 3.4-4.8 microns, the surface roughness of the outer surface of the rolling roller of the wheat cold milling equipment in the last six-pass central milling process is 2.8-3.4 microns, and the surface roughness of the outer surface of the rolling roller of the wheat cold milling equipment in the four-pass slag milling process and the two-pass tail milling process is 3.4-4.8 microns.

Drawings

The advantages of the above and/or additional aspects of the present invention will become apparent and readily appreciated from the following description of the embodiments taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic top view of a cold wheat flour milling apparatus according to the present invention;

FIG. 2 is a schematic front view of the cold wheat flour milling apparatus according to the present invention;

FIG. 3 is a schematic view of the wheat cold milling device of the present invention

FIG. 4 is a schematic side view of the combination of the rolling roller and the supporting frame

FIG. 5 is a flow chart of a cold wheat flour milling process according to one embodiment of the present application;

fig. 6 is a flow chart of a wheat milling process according to another embodiment of the present application.

Wherein, the corresponding relations between the reference numbers and the part names in fig. 1 to fig. 4 are as follows:

1. the device comprises a shell, 11, a containing cavity, 111, a material collecting area, 112, a feeding cylinder, 12, a rolling roller, 13, a rolling disc, 14, a supporting frame, 141, a side plate, 142, an upper frame, 143, a connecting plate, 144, a connecting rod, 145, a cross rod, 146, a mounting rod, 147, a rotating shaft, 148, a screw rod, 149, a baffle, 15, a brush, 16, a hopper, 161, a conveying pipeline, 17, a compression spring, 18, a rolling column, 2, a driving motor, 21, a belt, 3, a feeding rod, 4 and a feeding motor;

the reference numerals in fig. 5 denote the meanings: B. skin milling, Bc, coarse skin milling, Bf, fine skin milling, M, core milling, S, representative slag milling, T, tail milling, W, coarse screening, GG, classifying screen, XX, powder screen, Br, Bran milling machine, DF, Bran milling, XF, air suction powder, F, flour, SF, sieve powder, HF, flour back, Fc, flour re-screening, Bran, Branc, coarse Bran, Branf, fine Bran, D, classifying screen, P, wheat cleaner.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

As shown in FIG. 6, the invention provides a processing technology of wheat cold milling powder, comprising the following steps:

a, preparing materials: selecting wheat to clean and removing impurities;

c, clearing powder: the materials with the same granularity, namely three materials with different textures, namely pure endosperm particles, fine bran particles and bran-less endosperm particles, are effectively separated by a purifier through the combined action of vibration throwing and air sieving, so that the materials are uniformly combined and are respectively sent to different powder-making processes for rolling, crushing and sieving again;

the staying contact time of the materials on each grinding disc is about 10-20 seconds and can be adjusted, so that the materials are ground for a sufficient time, a vibration mechanism is additionally arranged, the gravity grinding force of the grinding rollers on the materials can be better and automatically adjusted, the thickness of the materials on the disc surface of the grinding disc is always kept about 4-6mm, the rolling distance and the pressure between the grinding rollers and the grinding disc are always kept in the optimal state, the rotating speed of the grinding rollers is low, heat cannot be generated in the grinding process, and the temperature of the materials is kept in the normal temperature state for a long time; starch can not be converted into sugar at normal temperature, and protein can not be denatured at normal temperature to lose water-absorbing expansion function. The skin roller is a smooth roller, the wheat amylopectin is slightly damaged in the rolling process, the original nutrient components in the wheat are not lost, and trace elements beneficial to human bodies, such as vitamin A, vitamin B1, B2, vitamin E, folic acid, pantothenic acid, carotene and the like, are fully reserved; the extensibility and plasticity in the process of making the flour food are fully ensured, and the wheaten food has flexible mouthfeel, rich wheat flavor and rich nutrition. In addition, as the flour is milled by the milling roller, the collision abrasion between the milling roller and the milling disc is small, the surface of the milling roller is smooth, the abrasion rate between the milling roller and the milling disc is almost zero, other substances cannot enter the wheat flour, and the purity and the quality of the flour are greatly guaranteed.

Further, the rolling and crushing process in the step B comprises five skin-rolling processes, nine core-rolling processes, four slag-rolling processes and two tail-rolling processes; the five skin grinding procedures, the nine core grinding procedures, the four slag grinding procedures and the two tail grinding procedures all adopt wheat cold flour making equipment; the wheat cold flour making equipment comprises the rolling disc, the rolling rollers, a support frame, a driving mechanism and a shell, wherein an accommodating cavity is formed in the shell; the shell is provided with a feed inlet and a discharge outlet which are communicated with the containing cavity.

The invention provides wheat cold flour making equipment, which comprises a rolling disc positioned at the bottom of a shell and rolling rollers positioned on the rolling disc, wherein the rolling rollers are connected with a support frame to form a rotating pair, a driving mechanism is in transmission connection with the support frame to drive the support frame to rotate in a horizontal plane, the support frame drives the rolling rollers to synchronously rotate in the rotating process, and the rolling rollers are driven to roll on the upper surface of the rolling disc in the rotating process of the support frame due to the fact that the rotating pair is formed between the rolling rollers and the support frame, so that the vertical gravity rolling and the horizontal forward rolling are continuously performed on wheat; the material entering from the feed inlet falls into the upper surface of the grinding disc, the grinding roller grinds the material in the process of rolling on the grinding disc, the gravity of the grinding roller and the relative shearing force between the grinding roller and the grinding disc are utilized to grind the material into powder, the grinding roller has larger gravity, so the requirement of the grinding pressure and the shearing force in the process of grinding the wheat can be fully met without increasing the relative rotating speed between the grinding roller and the grinding disc, the grinding roller can run at low speed, the rotating speed of the grinding roller is about 30-40 r/min, the rotating speed is lower and is about 1/20 of the rotating speed of a modern steel grinding roller, a cold grinding processing technology of low-speed grinding, light-speed collision and low-temperature processing is formed, the material stays on the disc surface of the grinding disc for 10-20 seconds, the temperature in the grinding roller 12 process is always kept at normal temperature, and the problem that the component of the material is damaged and lost in the high-temperature processing process can be solved, can ensure that the beneficial substances and the nutrient elements in the wheat are not lost, thereby improving the quality of wheat flour milling. In addition, as the flour is milled by the milling roller, the collision abrasion between the milling roller and the milling disc is small, and the milling roller and the milling disc are not required to be provided with teeth, so the abrasion rate of the milling roller and the milling disc is almost zero, other substances cannot enter the wheat flour, and the purity and the quality of the flour are greatly ensured.

The concrete process steps of the five skin grinding procedures, the nine core grinding procedures, the four slag grinding procedures and the two tail grinding procedures comprise;

material-1 skin (1B) roller rolling-1 skin sieve-2 skin (2B) roller rolling-2 skin sieve-3 skin (3B) roller rolling-3 skin sieve-4 skin (4B) roller rolling-4 skin sieve-5 skin (5B) roller rolling-5 skin sieve-6 skin (6B) roller rolling-6 skin sieve-bran packing

1 skin sieving, 1 skin powder cleaning, core rolling, slag rolling and tail rolling

Rolling with a roller of one core (1M), sifting with a screen of one core, cleaning with a roller of one core (1P), rolling with a roller of two cores (2M), sifting with a screen of two cores, cleaning with a screen of two cores (2P), rolling with a roller of three cores (3M), sifting with a roller of three cores (3P), rolling with a roller of four cores (4M), sifting with a roller of four cores (4P), rolling with a roller of five cores (5M), sifting with a roller of five cores, cleaning with a roller of five cores (5P), rolling with a roller of six cores (6M), sifting with a roller of six cores (6P), rolling with a roller of seven cores (7M), sifting with a roller of seven cores, cleaning with a roller of seven cores (7P), rolling with a roller of eight cores (8M), cleaning with a roller of eight cores (8P), cleaning with a roller of nine cores (9M), sifting with a screen of nine cores (9P), and packaging with a roller of nine cores (9M)

One slag (1S) roller rolling, one slag screening, one slag purifier, two slag (2S) roller rolling, two slag screening, two slag purifier, three slag (1S) roller rolling, three slag screening, three slag purifier, four slag (4S) roller rolling, four slag screening, four slag purifier, one tail (1T) roller rolling, two tail (2T) roller packing

Rolling with one tail (1T) rolling roller, one tail sieving, one tail purifier, two tail (2T) rolling rollers, two tail sieving, two tail purifiers, and secondary powder packing

The process comprises the following specific steps: five leather grinding processes are respectively 1B, 2B, 3B, 4BC, 4Bf and 5 BC; the nine-core grinding process comprises the following steps: 1M, 1M2, 2M, 3M, 4M, 5M, 6M, 7M, 8M, 9M, wherein 1M comprises: 1M1, 1M2,1M3,1M 4; four slag grinding processes 1S, 2S, 3S and 4S; the two tail mill processes comprise: 1T, 2T; wherein still include 9 clear powder processes, include: 1P, 2P, 3P, 4P, 5P, 6P, 7P, 8P, 9P, and five sizing screens: d1, D2, D3, D4, D5.

The material firstly enters 1B (namely a skin) and is rolled and crushed by wheat cold flour making equipment, the ground material is lifted upstairs by a lifting device, is unloaded by a discharger and enters a 1B high square sieve for sieving, and then is separated into 2B, 1P, 2P and D1; the coarse bran pieces on the oversize of the 1B high square sieve are processed by 2B (namely 2 peels), the wheat residues on the oversize of the upper layer grading sieve are processed by 2B, the wheat cores on the oversize of the lower layer grading sieve are processed by 1P (first core) and 2P (second core) siftings, the oversize of the powder sieve is processed by D1 (namely first second sifting) sifting, the undersize is flour F, and the F enters a packing machine for packing after being checked by a packing auger and a lifter to the checking sieve.

And (3) grinding the materials entering the second layer (2B) by a wheat cold flour making device, discharging the ground materials to the upstairs by a discharger, and screening the ground materials to 3B, 1P, 2P and 2D by a 2B high-square sieve. Wherein, the wheat residue on the upper layer of the grading sieve is processed by 3B, the wheat core on the lower layer of the grading sieve is sieved by 1P (first core) and 2P (second core), the material on the upper layer of the grading sieve is sieved by D2 (second secondary sieving), the material under the sieve is flour F, and the flour F is packaged in a packaging machine after being sieved by a packing auger and a lifter to the checking sieve.

The materials entering the third skin 3B are rolled and crushed by a wheat cold flour making device, the ground materials are lifted to the upstairs by a lifting device, unloaded by a discharger and then sieved into 4Bc, 4Bf, 4P and D3 by a 3B high-square sieve. The coarse bran pieces sieved out by the 3B high square sieve are conveyed to 4Bc (namely 4-peel coarse skin roller) skin processing, the oversize material of the upper-layer grading sieve is conveyed to 4Bf (namely 4-peel fine skin roller) processing, the oversize material of the lower-layer grading sieve is conveyed to 4P (namely 4-clean) screen clearance, the oversize material of the flour sieve is conveyed to D3 (namely 3 rd secondary screening), the undersize material is flour F, and the F enters a packaging machine for packaging after being screened by the inspection sieve through an auger and a lifter.

The materials entering the 4Bc (four-thin skin) are rolled and crushed by wheat cold flour making equipment, the ground materials are lifted upstairs by a lifting device, unloaded by a discharger and sieved and classified by a 4Bc high square sieve. The oversize material of the 4Bc high square screen is sent to Br.1 (first bran separator), the oversize material of the upper layer grading screen is sent to 5Bf for processing, the flour F is sieved out by the flour sieve, the F is conveyed to the inspection screen by a packing auger and a lifter for screening inspection, and then enters the packing machine for packing the lowest layer and enters 9P (9 cores) and D4 (fourth secondary screening).

The materials entering the 4Bf (four-coarse-husk) are rolled and crushed by wheat cold flour-making equipment, the ground materials are lifted to the upstairs by a lifting device, unloaded by a discharger and sieved and classified by a 4Bf high square sieve, the oversize material of the 4Bf high square sieve is sent to Br.1 (a first bran-removing machine), the oversize material of the upper layer grading sieve is sent to 5Bf for processing, the flour F is sieved out by a flour sieve, the F is sent to an inspection sieve by a packing auger and a lifter and is inspected, then the F enters a packing machine for packing, and the lowest layer enters D4 (the fourth secondary sieving).

Grinding and crushing materials entering 5Bc (five-thin skin) by a wheat cold flour making device, then conveying ground materials to the upstairs by a lifting device, unloading the materials by a discharger, sieving and classifying the materials by a 5Bc high square sieve, conveying oversize materials of the 5Bc high square sieve to Br.2 (a second bran maker), Br.3 (a third bran maker) and 5Bf, sieving flour F by a flour sieve, conveying the F to an inspection sieve by a packing auger and a lifter, inspecting the sieved materials, then conveying the F to a packaging machine for packaging, and conveying the lowest layer to D5 (a fifth secondary sieve);

grinding and crushing materials entering 5Bf (five-coarse-skin) by a wheat cold flour making device, then conveying ground materials to the upstairs by a lifting device, unloading the materials by a discharger, sieving and grading the materials by a 5Bf high-square sieve, conveying oversize materials of the 5Bf high-square sieve to Br.4 (a fourth bran beater) Branf and D5, sieving flour F by a flour sieve, conveying the F to an inspection sieve by a packing auger and a lifter, inspecting, then packaging, and conveying the lowest layer to a D5 (a fifth secondary sieve);

the material to Br1 is treated by a Br.1 bran remover and then separated into a material of 5Bc and DF; the material to Br.2 is treated by a Br.2 bran breaker and then is separated into SF1 and DF; the material to Br.3 is treated by a Br.3 bran machine and then separated into Branf and DF (bran powder), and the material to Br.4 is treated by a Br.4 bran machine and then separated into Branf and DF. The feed to SF1 was treated and separated into Branf and DF.

The material entering D1 (first grading sieve) is sieved again and then is divided into 3P and 3M, and flour F is sieved by a screw conveyor and a lifter to an inspection sieve and then enters a packaging machine for packaging.

The material entering D2 (second grading sieve) is sieved again and then is divided into 3P and 2M, and the flour F is sieved by a checking sieve through a packing auger and a lifter and then enters a packing machine for packing.

The material entering D3 (third grading sieve) is sieved again and then divided into 3P and 3M, and the flour F is sieved by a checking sieve through a packing auger and a lifter and then enters a packing machine for packing.

The materials entering D4 (fourth grade sieve) and D5 (fifth grade sieve) are sieved again and then are divided into 9P, 3M, 7M and 2T, and the flour F enters a packaging machine for packaging after being sieved and checked by a screw conveyor and a lifter.

After the materials entering 1S (namely, one slag) are rolled and crushed by the wheat cold milling equipment, the ground materials are lifted upstairs by a lifting device, unloaded by a discharger and screened by a 1S square sieve, the screened materials respectively enter 1T, 3P, 4P and 2M, and the screened flour F enters a packing machine for packing after being screened by a checking sieve through a packing auger and a lifter.

After the materials (namely the second slag) entering the 2S are rolled and crushed by the wheat cold flour making equipment, the ground materials are lifted upstairs by a lifting device, unloaded by a discharger and screened by a 2S square sieve, the screened materials enter 1T, 6P, 3M and 4Bf respectively, and the screened flour F enters a checking sieve for checking by a packing machine for packing after being screened by a packing auger and a lifter.

After materials entering 3S (namely three-slag) are rolled and crushed by a wheat cold milling device, the ground materials are lifted upstairs by a lifting device, unloaded by a discharger and screened by a 3S square sieve, the screened materials respectively enter 1T, 6P, 3M and 4Bf, and screened flour F enters a checking sieve through a packing auger and a lifter, is checked and screened, and then enters a packing machine for packing.

After 4S (namely four residues) is rolled and crushed by wheat cold flour making equipment, the ground materials are lifted to the upper floor by a lifting device, unloaded by a discharger, and sieved by a 4S square sieve, the sieved materials respectively enter 1T, 8P, 4M and 4Bf, and the sieved flour F enters a packing machine for packing after being sieved and checked by a checking sieve by a packing auger and a lifter.

After materials entering 1T (one tail) are rolled and crushed by wheat cold flour making equipment, ground materials are lifted upstairs by a lifting device, unloaded by a discharger and screened by a 1T square sieve, the screened materials enter 8P, 5M and 4Bf respectively, screened flour F is screened by a packing machine after being screened by a packing auger and a lifter to a checking sieve and checked, and the flour F enters the packing machine for packing, wherein the embryo is screened out by the uppermost layer.

After materials entering 2T (two tails) are rolled and crushed by a wheat cold milling device, the ground materials are lifted to the upstairs by a lifting device, unloaded by a discharger, and enter a 2T square sieve for screening, the screened materials respectively enter Branf, 6M and 5Bf, the screened flour F enters a packing machine for packing after being screened by a packing auger and a lifter to a checking sieve, and embryos are screened at the uppermost layer.

Separating the materials entering 1P (Yixin purifier) into 1S, 1M1, 1M2 and 4 Bf; separating the materials entering the 2P (double-core purifier) into 1S, 1M1, 1M2 and 4 Bf; separating the materials entering the 3P (three-core purifier) into 2S, 3S, 1M3 and 1M 4; separating the materials entering the 4P (four-core purifier) into 2S, 3S, 1M3,1M4 and 1T; separating the materials entering the 5P (five-core purifier) into 2S, 3S, 2M, 3M and 1T; separating the materials entering a 6P (six-core purifier) into 2S, 3S, 4S, 3M and 4M; separating the materials entering a 7P (seven-core purifier) into 4S, 2M, 3M and 1T; the materials entering 8P (eight-heart purifier) are separated into 4M, 5M, 2T and 4 Bf; the materials entering 8P (eight-heart purifier) are separated into 4M, 5M, 2T and 4 Bf; the materials entering 9P (nine-core wheat flour purifier) are separated into 4M, 5M, 6M, 2T and 5 Bf.

After the materials entering 1M1 are rolled and crushed by wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, screened by a 1M square sieve, separated into 2M and 3P, and screened flour F is conveyed to a checking sieve by a packing auger and a lifter, screened and checked and then packaged by a packaging machine.

After the materials entering 1M2 are rolled and crushed by wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, screened by a 1M square sieve, separated into 2M and 3P, and screened flour F is conveyed to a checking sieve by a packing auger and a lifter, screened and checked and then packaged by a packaging machine.

After the materials entering 1M3 are rolled and crushed by wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, screened by a 1M square sieve, separated into 2M and 3P, and screened flour F is conveyed to a checking sieve by a packing auger and a lifter, screened and checked and then packaged by a packaging machine.

After the materials entering 1M4 are rolled and crushed by wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, screened by a 1M square sieve, separated into 2M and 5P, and screened flour F is conveyed to a checking sieve by a packing auger and a lifter, screened and checked and then packaged by a packaging machine.

After the materials entering the 2M machine are rolled and crushed by the wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, enter a 2M square sieve for sieving, are separated into 3M and 7P, and the sieved flour F enters a packing machine for packing after being sieved by a packing auger and a lifter to a checking sieve for checking.

After the materials entering the 3M are rolled and crushed by the wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, enter a 3M square sieve for sieving, are separated into 4M and 7P, and the sieved flour F enters a packing machine for packing after being sieved and checked by a packing auger and a lifter to a checking sieve.

The materials entering the 4M are rolled and crushed by a wheat cold flour making device, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, enter a 4M square sieve for sieving, are separated into 5M and 1T, and the sieved flour F enters a packing machine for packing after being sieved and checked by a packing auger and a lifter to a checking sieve.

After the materials entering the 5M are rolled and crushed by the wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, enter a 5M square sieve for sieving, are separated into 6M and 2T, and the sieved flour F enters a packing machine for packing after being sieved and checked by a packing auger and a lifter to a checking sieve.

The materials entering the 6M are rolled and crushed by a wheat cold flour making device, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, enter a 6M square sieve for sieving, are separated into 7M and 8M flour, and the sieved flour F enters a packing machine for packing after being sieved and checked by a packing auger and a lifter to a checking sieve.

The materials entering the 7M and HF (return flour) are rolled and crushed by wheat cold flour making equipment, the ground materials are lifted to the floor by a lifting device, unloaded by a discharger, enter a 7M square sieve for sieving, are separated into 8M flour, and the sieved flour F enters an inspection sieve for sieving inspection by a packing machine for packing.

After materials entering 8M and 9M are rolled and crushed by a wheat cold flour making device, the ground materials are lifted to the upstairs by a lifting device, unloaded by a discharger, and screened by an 8M square sieve, and then separated into 9M flour and Fc (flour heavy sieve), and the screened flour F is conveyed to a checking sieve by a packing auger and a lifter, screened, checked and checked, and then conveyed to a packing machine for packing.

And (3) feeding the materials entering DF and XF into a high-square sieve for sieving, separating the materials into 7M and 5Bf, conveying the sieved flour F to an inspection sieve through a packing auger and a lifter, inspecting the sieved flour F, and then feeding the flour F into a packing machine for packing.

The flour enters a flour square sieve, oversize materials enter 7M, and finished flour is obtained after oversize materials are sieved.

As shown in figure 5, the material to 1B enters the cold wheat flour milling equipment first, is rolled and crushed and then enters the 1B high square sieve for sieving, the material enters the W sieve surface first and enters the sieving, the oversize material enters the cold wheat flour milling equipment to 2B, the undersize material enters the lower W sieve surface for sieving, the undersize material is discharged, the oversize material enters the cold wheat flour milling equipment to 2B, the undersize material enters the lower GG sieve surface for sieving, the oversize material enters the 1P flour milling machine, the undersize material enters the lower XX sieve surface for sieving, and the oversize material enters the D1 classifying sieve.

As shown in fig. 1 to 4, the present invention provides a wheat cold flour producing apparatus, comprising a mill 13, a mill roller 12, a support frame 14, a driving mechanism and a housing 1 with an accommodating cavity 11 formed therein, wherein the mill 13 is fixed at the bottom of the housing 1, the mill roller 12 is placed on the mill 13 and forms a revolute pair with the support frame 14, and the driving mechanism is in transmission connection with the support frame 14 for driving the support frame 14 to rotate so as to drive the mill roller 12 to roll on the mill 13; and a feed inlet and a discharge outlet which are communicated with the accommodating cavity 11 are arranged on the shell 1.

The wheat cold flour making equipment provided by the invention comprises a grinding disc 13 positioned at the bottom of a shell 1 and a grinding roller 12 positioned on the grinding disc 13, wherein the grinding roller 12 is connected with a support frame 14 to form a revolute pair, a driving mechanism is in transmission connection with the support frame 14 to drive the support frame 14 to rotate in a horizontal plane, the support frame 14 drives the grinding roller 12 to synchronously rotate in the rotating process, and the grinding roller 12 is driven to roll on the upper surface of the grinding disc 13 in the rotating process of the support frame 14 due to the revolute pair formed between the grinding roller 12 and the support frame 14, so that the grinding roller 12 is continuously rolled on wheat by vertical gravity and horizontal forward; the material entering from the feed inlet falls into the upper surface of the grinding disc 13, the grinding roller 12 grinds the material in the process of rolling on the grinding disc 13, the gravity of the grinding roller 12 and the relative shearing force between the grinding roller 12 and the grinding disc 13 are utilized to grind the material into powder, the grinding roller 12 has larger gravity, so the requirements on the grinding pressure and the shearing force in the process of grinding the wheat can be fully met without increasing the relative rotating speed between the grinding roller 12 and the grinding disc 13, thus the grinding roller 12 can run at low speed, the rotating speed of the grinding roller 12 is about 30-40 r/min, the rotating speed is lower and is about 1/20 of the rotating speed of the grinding roller of the steel mill, the processing technology of the cold powder with low-speed grinding, light collision and low-temperature processing is formed, the material stays on the disc surface of the grinding disc 13 and contacts with the grinding roller 12 for 10-20 seconds, the temperature of the grinding roller 12 in the process of grinding is always kept at normal temperature, therefore, the problem that components of the materials are damaged and lost in the high-temperature processing process can be solved, the beneficial substances and the nutrient elements in the wheat can be prevented from being lost, and the quality of wheat flour milling is improved. In addition, as the flour is milled by the milling roller 12, the collision abrasion between the milling roller 12 and the milling disc 13 is small, and the milling roller 12 and the milling disc 13 are not required to be provided with teeth, so that the abrasion rate of the milling roller 12 and the milling disc 13 is almost zero, other substances cannot enter the wheat flour, and the purity and the quality of the flour are greatly ensured.

The wheat cold flour making equipment provided by the invention also comprises a flour cleaning mechanism, wherein the flour cleaning mechanism is used for pushing the ground materials on the grinding disc 13 into the material collecting area 111; the wheat wind on the mill 13 can be pushed into the material collecting area 111 by the flour cleaning mechanism, and the problems of unsmooth rolling of the mill roller 12, uneven rolling of wheat and the like caused by accumulation of the milled wheat flour, wheat bran and the like on the mill 13 can be prevented.

In the application, the middle of the supporting frame 1414 is provided with a roller column 1818, the roller column 1818 is fixed at the center of the roller disc 1313, and the lower end of the roller column 1818 passes through the roller disc 1313 to be in transmission connection with the driving mechanism, wherein the roller column 1818 is fixedly connected with the supporting frame 1414, such as by bolting, welding and the like; the powder cleaning mechanism comprises a first brush 1463, a mounting rod 146 and a first brush 1463 fixed on the support frame 14 or the grinding column 18, the mounting rod 146 is positioned on the upper side of the grinding plate 13 and is parallel to the grinding plate 13, and the first brush 1463 is fixed on the lower side of the mounting rod 146. The mounting rod 146 is positioned at the upper side of the rolling disc 13, a first brush 1463 is arranged on the mounting rod 146, a certain gap is reserved between the first brush 1463 and the upper surface of the rolling disc 13, and the wheat flour on the rolling disc 13 can be swept into the material collecting area 111 through the first brush 1463; the first brush 1463 may be a large brush, the width of the first brush is the same as the radius of the part of the rolling plate 13 except the rolling column 18, that is, the first brush 1463 can completely cover the area of the rolling plate 13 where flour can be stored, of course, in this application, a plurality of first brushes 1463 may be provided, and a plurality of first brushes 1463 may be provided to clean the wheat flour on the rolling plate 13 together, which can also achieve the object of the present application, and the spirit of the present invention does not depart from the design concept of the present invention, and the present invention shall fall within the protection scope of the present invention.

Preferably, the distance between the first brush 1463 and the upper surface of the rolling plate 13 is 4-6mm, so that the crushed wheat flour, wheat bran and the like are prevented from being accumulated on the rolling plate 13, the rolling roller 12 runs more smoothly, and the wheat is rolled more uniformly.

The powder cleaning mechanism further comprises a first longitudinal connecting rod 1461, the upper end of the first longitudinal connecting rod 1461 is vertically connected with the mounting rod 146, the lower end of the first longitudinal connecting rod 1461 is fixedly connected with the first brush 1463, and the first brush 1463 is fixed by the first longitudinal connecting rod 1461 because the distance between the supporting frame 14 and the rolling disc 13 is large, so that the powder cleaning operation of the first brush 1463 is facilitated.

As shown in fig. 4, the wheat cold milling apparatus further comprises a second longitudinal connecting rod 1462 and a second brush 1464, wherein the upper end of the second longitudinal connecting rod 1462 is vertically connected with the mounting rod 146, and the lower end is fixedly connected with the second brush 1464; the discharge port is arranged in the material collecting area 111 and is positioned on the bottom wall of the shell 1, the second brush 1464 is positioned in the material collecting area 111 and is used for pushing the materials crushed in the material collecting area 111 into the discharge port, and the second brush 1464 is connected with the bottom wall of the shell 1, so that the materials such as wheat flour, wheat bran and the like in the material collecting area 111 can be pushed into the discharge port more fully, and the outer side of the conveyer belt is further conveyed; wherein the discharge port is connected with a negative pressure device through a pipeline to suck out the wheat flour at the discharge port.

As shown in fig. 1 to 4, a through hole is formed in the middle of the rolling disc 13, a rotary table is arranged in the through hole, the rolling column 18 is fixedly connected with the rotary table, the rotary table can rotate at the bottom of the housing 1, the rotary table can bear the rolling column 18, so that the rolling column 18 is fixed in the accommodating cavity 11 inside the housing 1, and meanwhile, when the rolling column 18 is driven by a driving mechanism to rotate, the rotary table can rotate on the bottom wall of the housing 1 along the clockwise direction or the counterclockwise direction.

Preferably, the grinding column 18 is arranged at the center of the grinding disc 13, and the transmission mechanism is in transmission connection with the lower end of the grinding column 18 to drive the grinding column 18 to rotate, so that the grinding disc 13 does not rotate; the mill 13 is horizontally placed on the bottom wall of the housing 1, the mill posts 18 are vertically arranged, that is, the mill posts 18 and the mill 13 are vertically arranged, the mill posts 18 are driven by a driving mechanism to rotate the support frame 14 clockwise or counterclockwise in a plane, because the mill posts 18 are fixedly connected with the support frame 14, the support frame 14 rotates along with the mill posts 18 synchronously, the mill roller 12 rotates on the mill 13 along with the support frame 14 around the mill posts 18, and a rotating pair is formed between the support frame 14 and the mill roller 12, so that during the rotation of the mill roller 12, the mill roller 12 rolls on the mill roller 12 simultaneously, and thus the material falling from the feed inlet onto the mill 13 is crushed between the mill roller 12 and the mill 13 along with the rolling of the mill roller 12.

Preferably, the driving mechanism is a driving motor 2, the driving motor 2 is located outside the accommodating cavity 11, the lower end of the grinding column 18 penetrates through the bottom of the housing 1, the driving motor 2 is in transmission connection with the lower end of the grinding column 18 through a belt 21, and the driving motor 2 is placed outside the housing 1, so that the influence of flour on the driving motor 2 can be avoided, and the motor is prevented from being out of order; meanwhile, the driving motor 2 is arranged outside the shell 1, so that the space of the accommodating cavity 11 is not occupied, and the effective utilization rate of the space in the shell 1 can be increased; wherein driving motor 2 through the reduction gear with belt 21 transmission is connected, and then through belt 21 with grind post 18 transmission and be connected, in order to drive grind post 18 rotates.

The intelligent wheat cold milling equipment provided by the invention also comprises a vibration mechanism, wherein the vibration mechanism is arranged between the support frame 14 and the milling disc 13 and is used for providing a vertical downward vibration force for the milling roller 12, the vibration mechanism is arranged between the support frame 14 and the milling roller 12, when the milling roller 12 rolls over the milled wheat, the vibration mechanism can provide a vertical downward vibration force for the milling roller 12, the vibration force slightly impacts the milled and crushed wheat to form flour, the gravity milling pressure of the milling roller 12 on the material can be better and automatically adjusted, the wheat is milled together on the basis of the mixed action of the positive pressure of the milling roller 12, the vibration force and the shearing force, sufficient force can be provided, therefore, the speed of the milling roller 12 can be adjusted to be lower, the temperature in the milling process of the milling roller 12 is always kept at the normal temperature state, and the problem that the material is damaged and lost in the high-temperature processing process can be solved, can ensure that the beneficial substances and nutrient elements in the wheat are not lost. In addition, as the flour is milled by the milling roller 12, the collision abrasion between the milling roller 12 and the milling disc 13 is small, and the milling roller 12 and the milling disc 13 are not required to be provided with teeth, so that the abrasion rate of the milling roller 12 and the milling disc 13 is almost zero, other substances cannot enter the wheat flour, and the purity and the quality of the flour are greatly ensured.

As shown in fig. 1 and 3, in the present application, two of the rolling rollers 12 form a set of rolling roller 12 assemblies, two of the rolling rollers 12 in the same set of rolling roller 12 assemblies are symmetrically arranged about the rolling column 18, and at least one set of the rolling roller 12 assemblies is arranged on the supporting frame 14; preferably, as shown in fig. 1 and 3, the assembly of rollers 12 is provided with one set, that is, two rollers 12 are provided, and two rollers 12 are oppositely provided on two sides of the post 18 and are symmetrical about the post 18; optionally, the supporting frame 14 includes a plurality of frame bodies, and the frame bodies correspond to the number of the rolling discs 13 one to one; the frame body comprises a side plate 141 and an upper frame 142, and the side plate 141 is fixedly connected with the grinding column 18 through bolts; wherein one end of the upper frame 142 is vertically connected with the upper end of the side plate 141, one side of the side plate 141 close to the grinding column 18 is provided with two connecting plates 143 perpendicular to the side plate 141, two corresponding through holes are formed in the connecting plates 143, a through hole is also formed in the grinding column 18, and a bolt penetrates through the two connecting plates 143 and the through hole in the grinding column 18 so as to fix the side plate 141 and the grinding column 18. Preferably, the outer side of the grinding column 18 is also provided with a plate-shaped connecting piece matched with the connecting plate 143, and the connecting piece is provided with a through hole matched with a bolt.

Optionally, an opening is formed in the middle of the upper frame 142, the opening is located on the upper side of the rolling roller 12, a third brush 15 is arranged in the opening, the third brush is connected to the upper frame 142, and the third brush 15 cleans the wheat flour stuck on the rolling roller 12, so as to prevent the rolling roller 12 from running unsmoothly due to the stacking of the flour on the surface of the rolling roller 12. It is to be understood that the present invention may be applied to a case where two or three sets of the rolling rollers 12 are provided, that is, four or six rolling rollers 12 are provided, and the object of the present invention can be achieved without departing from the design concept of the present invention.

As shown in fig. 1 to 4, the supporting frame 14 includes a frame body corresponding to the number of the rolling rollers 12, the frame body includes a side plate 141, a rotating shaft 147 and an upper frame 142, the side plate 141 is vertically disposed, one side of the side plate 141 is fixedly connected to the rolling column 18, one end of the upper frame 142 is vertically connected to the upper end of the side plate 141, and the other end is located on the other side of the side plate 141; the rolling disc 13 is provided with a shaft hole matched with the rotating shaft 147, one end of the rotating shaft 147 is fixedly connected with the other side of the side plate 141, and the other end of the rotating shaft penetrates through the shaft hole to form the revolute pair.

The vibration mechanism is arranged between the rotating shaft 147 and the upper frame 142; the vibration mechanism comprises a spring and a long screw rod 148, the upper end of the long screw rod 148 is fixedly connected with the upper frame 142, the lower end of the long screw rod 148 is fixedly connected with the rotating shaft 147, and the spring is sleeved outside the long screw rod 148 and is positioned between the upper frame 142 and the rotating shaft 147; the two ends of the long screw 148 are both external thread sections, the upper frame 142 is provided with a first through hole, the external thread section at the upper end of the long screw 148 passes through the first through hole, two nuts are in threaded connection with the external thread section at the upper end of the long screw 148, and the two nuts are positioned at the two sides of the upper frame 142 and respectively abut against the upper side surface and the lower side surface of the upper frame 142, so that the upper end of the long screw 148 is fixedly connected with the upper frame 142; the rack body further comprises a cross bar 145 and two connecting rods 144, wherein one end of one connecting rod 144 is hinged with one end of the cross bar 145, one end of the other connecting rod 144 is hinged with the other end of the cross bar 145, two ends of the rotating shaft 147 are respectively rotatably connected with the two connecting rods 144, a second through hole is formed in the other end, far away from the cross bar 145, of the connecting rod 144, and the lower end of the long screw 148 penetrates through the second through hole and is matched with a nut, so that the lower end of the long screw 148 is fixedly connected with the rotating shaft 147 through the connecting rod 144; a baffle plate 149 is further arranged on the long screw 148, the upper end of the compression spring 17 abuts against the lower surface of the baffle plate 149, and the lower end abuts against the upper surface of the connecting rod 144; thus, when the rolling disc 13 vibrates in an up-and-down mode, the spring deforms to provide a vertical downward deformation force, the rolling roller 12 vibrates to generate a vibration force to slightly impact and roll broken wheat into powder when turning over and compressing the wheat, the gravity rolling force of the rolling roller 12 on the wheat can be adjusted better, and the thickness of materials on the disc surface of the rolling disc 13 is kept to be about 4-6mm all the time.

As shown in fig. 2 and 3, the discharge port is opened on the bottom wall of the housing 1; the discharge port is arranged on the bottom wall of the shell 1, so that the wheat flour in the collection area 111 can be collected and conveyed more conveniently; of course, the discharge port may be disposed on the sidewall of the housing 1 in the material collecting area 111 in the present application, which also achieves the object of the present application and is within the protection scope of the present invention. As shown in fig. 1, the casing 1 has a cylindrical shape, the rolling roller 12 has a cylindrical shape, the rolling plate 13 has a disk shape, and the annular collecting space 111 is formed between the casing 1 and the rolling plate 13.

As shown in fig. 2 and 3, the wheat cold milling device further comprises a material conveying pipe 161 and a hopper 16, wherein the hopper 16 is fixed on the supporting frame 14, the feed inlet is arranged at the upper end of the shell 1 and positioned at the upper side of the hopper 16, the discharge outlet at the lower end of the hopper 16 is communicated with the upper end of the material conveying pipe 161, the lower end of the material conveying pipe 161 is positioned at the upper side of the milling plate 13, so that the material entering through the feed inlet falls into the hopper 16, and then is discharged to the upper surface of the milling plate 13 through the discharge outlet of the hopper 16. Optionally, the hopper 16 is fixed between the two brackets, an accommodating space is formed between the two brackets, the lower part of the hopper 16 is located in the accommodating space, and the upper end of the hopper 16 is clamped on and fixedly connected with the two brackets; preferably, the hopper 16 is provided on the upper side of the grinding cylinder 18, and the hopper 16 is located right above the feed port, so that the feed port is provided at the middle position of the upper end of the housing 1.

Preferably, the roller 12 can be a stone roller or a steel roller, which can achieve the purpose of milling wheat by using the gravity of the roller 12 in the present application, wherein the surfaces of the stone roller and the steel roller are both smooth structures, so that the roller 12 has little damage to amylopectin of wheat during the milling process, thereby ensuring the integrity of the internal structure of wheat and avoiding the loss of nutrients in the small surface. Meanwhile, the smooth surface of the rolling roller 12 can further avoid the problem that stone powder and steel powder drop in the rolling process of the rolling roller 12, and the quality and the taste of the rolled wheat flour are ensured.

Optionally, the feeding port feeds materials through a feeding cylinder 112, the wheat cold film powder equipment further comprises a control mechanism, a feeding mechanism and a detection mechanism, and the feeding mechanism is arranged at the lower end of the feeding cylinder 112 and is used for conveying the materials in the feeding cylinder 112 into the accommodating cavity 11 through the feeding port; the detection mechanism is arranged on the feeding cylinder 112 and used for detecting a height signal of the material level in the feeding cylinder 112 and transmitting the height signal to the control mechanism, and the control mechanism controls the feeding speed of the feeding mechanism according to the received height signal. The control mechanism, the detection mechanism and the feeding mechanism are adopted to control the feeding speed and the start and stop of the whole system, so that the situations that the feeding cylinder 112 is blocked and the rolling roller 12 is empty can be prevented, and the feeding speed and the feeding amount are kept in a reasonable range.

As shown in fig. 1 to 4, the feed inlet is provided at the upper end of the housing 1, the lower end of the feed cylinder 112 is communicated with the feed inlet, the upper end of the feed cylinder is located at the outer side of the housing 1, the feed mechanism comprises a feed roller 3 and a feed motor 4, the feed motor 4 is in transmission connection with the feed roller 3, the feed motor 4 is electrically connected with the control mechanism, the feed roller 3 is arranged at the lower end of the feed cylinder 112, the feed roller 3 is driven by the feed motor 4 to work, and then the material in the feed cylinder 112 is conveyed into the accommodating cavity 11, and the feed speed can be better controlled by the feed roller 3.

Preferably, the control mechanism is a PLC, the PLC is a Siemens PLC-S-1500 high-performance programmable controller, and the PLC can intelligently control the work of the feeding motor 4 so as to realize the automatic and intelligent control of the whole system; it should be noted that the control mechanism in the present application may be a single chip microcomputer, a micro PLC, etc., and the purpose of the present application can be achieved as long as the purpose of controlling the feeding speed of the feeding motor 4 can be achieved.

Optionally, the intelligent wheat cold milling equipment further comprises a frequency converter, the PLC is electrically connected with the feeding motor 4 through the frequency converter, the PLC controls the rotating speed of the feeding motor 4 through the frequency converter, so as to control the feeding speed of the feeding roller 3, the feeding motor 4 is controlled through the frequency converter, the starting of the feeding motor 4 is smooth, the impact on the motor and the power grid is small, and the starting of a larger motor can be realized under the condition of no capacity increase; the adjustment of the load rotating speed is realized by setting the frequency of the running power supply of the motor; the electric energy is effectively saved through the rotation speed adjustment, and the protection function of the frequency converter is relatively comprehensive; frequency or rotating speed feedback can be output, and remote control frequency modulation can be accepted.

Preferably, the detection mechanism is a far infrared material level detector, the far infrared material level detector is electrically connected with the PLC, the far infrared material detector is connected with the height of the material in the feeding cylinder 112, the height information is transmitted to the PLC, the PLC controls the rotating speed of the feeding motor 4 through a frequency converter according to the received height information, the feeding speed of the feeding roller 3 is further controlled, and meanwhile, the PLC is further used for starting and stopping the whole system.

Further, the far infrared material level detector is arranged on the side wall of the feeding cylinder 112, the far infrared detector comprises a plurality of groups of detection components, the plurality of groups of detection components are sequentially supported on the side wall of the feeding cylinder 112 from top to bottom, and each detection group comprises a far infrared transmitter and a far infrared receiver which are oppositely arranged; preferably, the far infrared material level detector is disposed on an outer side wall of the feeding cylinder 112, wherein a multi-point far infrared material detector is adopted in the present application, the multi-point far infrared material detector has a plurality of sets of far infrared receivers and far infrared transmitters, the plurality of sets of far infrared receivers are disposed on the outer side wall of the feeding cylinder 112 and are sequentially arranged from top to bottom, the plurality of sets of far infrared transmitters are disposed on the outer side wall of the other side of the feeding cylinder 112 and are sequentially arranged from top to bottom, wherein the far infrared receivers and the far infrared transmitters are in one-to-one correspondence, the far infrared transmitters transmit far infrared signals, and the far infrared receivers are used for receiving the far infrared signals; when the far infrared receiver at the corresponding position can receive the far infrared emission signal, it indicates that no material exists at the height of the feeding cylinder 112, and if the far infrared emission signal is not received, it indicates that the material exists in the height of the feeding cylinder 112, so that the height signal of the material in the feeding cylinder 112 can be detected.

Preferably, the far infrared material level detector is provided with 10-12 detection point positions, the twelve detection point positions are divided into three sections, namely the whole height of the charging barrel is divided into three ranges, namely a first height material level, a second height material level and a third height material level from top to bottom, when the height of the material level in the charging barrel 112112 is in the first material level height range, namely the material level reaches the highest material level and the next highest material level, the PLC controls the feeding motor 4 to accelerate through the frequency converter, so that the rotating speed of the feeding roller 3 is increased, the feeding speed of the feeding roller 3 is increased, the height of the material in the charging barrel 112 is reduced, the thickness of the material layer of the grinding disc 13 is maintained in a reasonable range, and the pipeline is prevented from being blocked;

when the material level of the feeding cylinder 112 is in the second material level height range, namely the middle position of the feeding cylinder 112, the feeding speed in the shell 1 is in the normal range, and the constant-speed feeding is maintained at the moment, so that the feeding speed and the feeding amount are kept in the reasonable range;

when the material level in the feeding cylinder 112 is in the third material level height range, that is, the lower end of the feeding cylinder 112 is at a lower position, at this time, it indicates that the feeding speed of the housing 1 is higher, but the feeding speed in the feeding cylinder 112 is lower, and the feeding requirement of the device cannot be met, at this time, the PLC controls the feeding motor 4 to reduce the rotating speed through the frequency converter, so as to reduce the rotating speed of the feeding roller 3, reduce the feeding speed, and lower the height of the material in the feeding cylinder 112; when the material in the feeding cylinder 112 continuously decreases in the third material level height range, or the material level is at the lowest material level, the PLC controls the driving motor 2 to stop rotating, and further controls the rolling roller 12 to stop rotating, so as to prevent the rolling roller 12 from rolling empty, and at this time, the frequency converter of the feeding motor 4 and the like also stop working, and the PLC controls the whole system to stop. When the system is started, the material level of the material cylinder and a starting signal are intelligently judged, the feeding system is started firstly, and then the rolling roller 12 system is started. When the system is stopped, the system of the roller 12 is stopped firstly and then the feeding system is stopped through the intelligent judgment and control of the PLC.

Preferably, the detection device is a 10-12 point multi-point far infrared material level detector, and is used for measuring the amount of the fed materials in the charging barrel, converting digital signals into analog signals through a digital-to-analog converter to control the frequency converter, and then controlling the speed and the feeding amount of the feeder in real time through a frequency conversion PLC. ABBACS 510 high-performance frequency converters are arranged to control the running speed and the feeding amount of the feeding rollers 3 and realize soft start and delayed shutdown. The PLC adopts a Siemens PLC-S-1500 high-performance programmable controller to realize system automation and intelligent control. The intelligent configuration can intelligently judge and control the rolling roller 12 system according to the material level condition of the rolling system.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "at least three" means two or more unless otherwise specified.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A wheat cold-making flour processing technology is characterized in that: the method comprises the following steps:

a, preparing materials: selecting wheat to clean and removing impurities;

d, preparing powder: distributing the screened wheat flour with different grades;

in the step B, the rolling and crushing process comprises five skin grinding processes, nine core grinding processes, four slag grinding processes and two tail grinding processes; the five skin grinding procedures, the nine core grinding procedures, the four slag grinding procedures and the two tail grinding procedures all adopt wheat cold flour making equipment;

the wheat cold flour making equipment comprises the rolling disc, the rolling rollers, a support frame, a driving mechanism and a shell, wherein an accommodating cavity is formed in the shell; the shell is provided with a feed inlet and a discharge outlet which are communicated with the containing cavity;

the grinding column is arranged in the center of the grinding disc, and the transmission mechanism is in transmission connection with the lower end of the grinding column and drives the grinding column to rotate; the grinding disc is horizontally placed on the bottom wall of the shell, the grinding columns are vertically arranged, and the supporting frame is driven by the grinding columns to rotate clockwise or anticlockwise in a plane in the process of rotating under the driving of the driving mechanism;

the driving mechanism is a driving motor, the driving motor is positioned outside the accommodating cavity, the lower end of the grinding column penetrates through the bottom of the shell, and the driving motor is in transmission connection with the lower end of the grinding column through a belt; the driving motor is in transmission connection with the belt through a speed reducer and further in transmission connection with the grinding column through the belt so as to drive the grinding column to rotate;

the feeding hole is formed in the upper end of the shell, the lower end of the feeding barrel is communicated with the feeding hole, and the upper end of the feeding barrel is located on the outer side of the shell;

the feeding mechanism comprises a feeding roller and a feeding motor, the feeding motor is in transmission connection with the feeding roller, the feeding motor is electrically connected with the control mechanism, the feeding roller is arranged at the lower end of the feeding cylinder, and the feeding motor drives the feeding roller to work so as to convey the material in the feeding cylinder to the accommodating cavity;

the support frame comprises frame bodies which correspond to the rolling rollers in number one by one, each frame body comprises a side plate, a rotating shaft and an upper frame, the side plates are vertically arranged, one side of each side plate is fixedly connected with the rolling columns, one end of each upper frame is vertically connected with the upper ends of the side plates, and the other end of each upper frame is positioned on the other side of the side plate; the rolling disc is provided with a shaft hole matched with the rotating shaft, one end of the rotating shaft is fixedly connected with the other side of the side plate, and the other end of the rotating shaft penetrates through the shaft hole to form the revolute pair;

the wheat cold milling equipment also comprises a vibration mechanism, and the vibration mechanism is arranged between the rotating shaft and the upper frame; the vibration mechanism comprises a spring and a long screw rod, the upper end of the long screw rod is fixedly connected with the upper frame, the lower end of the long screw rod is fixedly connected with the rotating shaft, and the spring is sleeved on the outer side of the long screw rod and is positioned between the upper frame and the rotating shaft; the two ends of the long screw rod are both external thread sections, the upper frame is provided with a first through hole, the external thread section at the upper end of the long screw rod penetrates through the first through hole, two nuts are in threaded connection with the external thread section at the upper end of the long screw rod, and the two nuts are positioned at the two sides of the upper frame and respectively abut against the upper side surface and the lower side surface of the upper frame, so that the upper end of the long screw rod is fixedly connected with the upper frame; the rack body further comprises a cross rod and two connecting rods, one end of one connecting rod is hinged with one end of the cross rod, one end of the other connecting rod is hinged with the other end of the cross rod, two ends of the rotating shaft are respectively and rotatably connected with the two connecting rods, a second through hole is formed in the other end, far away from the cross rod, of each connecting rod, and the lower end of the long screw penetrates through the second through hole and is matched with a nut, so that the lower end of the long screw is fixedly connected with the rotating shaft through the connecting rods; the long screw is also provided with a baffle plate, the upper end of the spring is abutted against the lower surface of the baffle plate, and the lower end of the spring is abutted against the upper surface of the connecting rod;

the wheat cold milling equipment further comprises a far infrared material level detector, the far infrared material level detector is arranged on the side wall of the feeding cylinder, the far infrared material level detector is provided with a plurality of detection points, the detection points are divided into three sections, namely the whole height of the feeding cylinder is divided into three ranges, the three ranges are divided into a first height material level, a second height material level and a third height material level from top to bottom, when the height of the material level in the feeding cylinder is in the first material level height range, namely the material level reaches the highest material level and the second highest material level, the PLC controls the feeding motor to accelerate the rotating speed through the frequency converter, so that the rotating speed of the feeding roller is increased, and the feeding speed of the feeding roller is increased;

when the material level of the feeding cylinder is in a second material level height range, namely the middle position of the feeding cylinder, the feeding speed in the shell is in a normal range, and the constant-speed feeding is maintained;

when the material level in the feeding cylinder is in a third material level height range, namely the lower material level position of the lower end of the feeding cylinder, the PLC controls the feeding motor to reduce the rotating speed through the frequency converter;

when the material in the feeding cylinder continuously reduces in the third material level height range or the material level is at the lowest material level, the PLC controls the driving motor to stop rotating.

2. The cold wheat flour milling process according to claim 1, characterized in that: the surface roughness of the outer surface of the rolling roller of the wheat cold flour making equipment in the five-step skin rolling process is 3.6-5.2 mu m; the surface roughness of the outer surface of the rolling roller of the wheat cold milling equipment in the first three-pass central milling process is 3.4-4.8 microns, the surface roughness of the outer surface of the rolling roller of the wheat cold milling equipment in the last six-pass central milling process is 2.8-3.4 microns, and the surface roughness of the outer surface of the rolling roller of the wheat cold milling equipment in the four-pass slag milling process and the two-pass tail milling process is 3.4-4.8 microns.