CN115569699B

CN115569699B - Milling equipment for flour processing

Info

Publication number: CN115569699B
Application number: CN202211082996.6A
Authority: CN
Inventors: 朱德伟; 任立立; 朱彤晗
Original assignee: Jilin Province Dewei Cereals Industry Co ltd
Current assignee: Jilin Province Dewei Cereals Industry Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-04-18
Anticipated expiration: 2042-09-06
Also published as: CN115569699A

Abstract

The invention provides flour milling equipment for flour processing, which comprises a flour milling box (10), a driving assembly (20), a grinding cylinder (30), a grinding assembly (40), a grinding wheel (50), a vibration assembly (60), a first screening plate (70) and a second screening plate (80); the milling box (10) is not provided with a top cover; the driving assembly (20) is arranged on the outer wall of the bottom of the grinding box (10); the grinding cylinder (30) is arranged inside the grinding box (10); the upper end of the grinding cylinder (30) is provided with a grinding component (40) and a grinding wheel (50) inside; the lower side of the grinding cylinder (50) is sequentially provided with a first screening plate (70) and a second screening plate (80). The device can automatically carry out two grinding procedures of coarse grinding and fine grinding on the wheat, and realize the fine grinding of the flour; simultaneously, this equipment can also carry out continuous screening to the flour to obtain the little, the flour that becomes more meticulous of granule, effectively avoid the mesh blockage, ensure crocus efficiency.

Description

Milling equipment for flour processing

Technical Field

The invention relates to the technical field of flour processing, in particular to a flour milling device for flour processing.

Background

The flour is a powdery material prepared by grinding wheat, the existing flour grinding equipment usually adopts two rollers to grind the flour, the control of the flow rate and the particle size of the flour is realized by controlling the gap between the rollers, however, the wheat contains certain moisture, and the wheat flour is mixed with the moisture in the wheat flour after the wheat is damaged to have certain viscosity, so that the wheat flour is attached to the surfaces of the rollers to influence the flour grinding capacity of the rollers; simultaneously, carry out the crocus through two gyro wheels, the thickness of its flour granule (the thickness of flour granule directly influences the edible taste and the quality of flour) depends on operating personnel to the regulation and control in gyro wheel clearance and relapse, grind many times, and artificial influence factor is high, grinding efficiency is low, the rate of emergence is low, and the uniformity is difficult to guarantee to the flour quality. In addition, the flour is usually screened by a screening device in the prior art, so as to obtain fine-grained flour; however, the existing screening device has small screen holes and can obtain fine flour, but the small screen holes easily cause blockage, the screening flow is small, the efficiency is low, the screen holes are large, the treatment capacity is large, the screening flow is large, but the flour particles are large, and the fine flour is difficult to obtain.

Disclosure of Invention

Aiming at the problems in the prior art, the invention aims to provide a flour milling device for flour processing, which can automatically perform two grinding procedures of coarse grinding and fine grinding on wheat, realize fine grinding of the flour and avoid the transition dependence on artificial regulation and control on the thickness degree of flour particles; simultaneously, this equipment can carry out continuous screening to flour automatically after the crocus to obtain the flour that the granule is little, become more meticulous, effectively avoid the sieve mesh to block up, ensure the screening flow.

The object of the invention is to the following technical scheme is realized:

the utility model provides a milling equipment for flour processing which characterized in that: the grinding device comprises a grinding box, a driving assembly, a grinding cylinder, a grinding assembly, a grinding wheel, a vibration assembly, a first screening plate and a second screening plate; the milling box is not provided with a top cover; the driving assembly is arranged on the outer wall of the bottom of the grinding box and used for driving the grinding assembly, the grinding wheel, the first screening plate and the second screening plate to move; the grinding cylinder is arranged in the powder grinding box and coaxial with the powder grinding box, the upper end of the grinding cylinder is of a funnel-shaped structure with a large upper part and a small lower part, and the top surface and the bottom surface of the grinding cylinder are both of hollow structures; the upper end of the grinding cylinder is provided with a grinding assembly, and a grinding wheel is arranged in the grinding cylinder positioned on the lower side of the funnel-shaped structure; grinding vessel downside is located the crocus incasement and sets up first screening board, and first screening board sets up vibration subassembly and first screening board downside around and sets up the second screening board.

Further optimization, the outer walls of the two sides of the top end of the milling box are respectively provided with an inclined plate through an L-shaped support, and the inclined plates incline towards one end close to the inner side of the milling box.

Further optimization is carried out, four corners of the bottom end of the grinding box are respectively provided with a support for supporting the whole grinding equipment.

Further optimization is carried out, the inner wall bottom surface of the milling box is provided with a discharge port for the side wall of the milling box at the bottom end of the inclined plane, and the outer side of the milling box is provided with a collecting box corresponding to the discharge port.

Preferably, the driving assembly comprises a threaded shaft, a first gear, a second gear, a rotating shaft, a shaft sleeve, a third gear, a connecting member and a driving member; the threaded shaft and the rotating shaft are coaxial and are positioned in the middle of the grinding box, the threaded shaft is sleeved on the outer wall of the rotating shaft, and the inner wall of the threaded shaft is rotatably connected with the outer wall of the rotating shaft; the upper end of the threaded shaft penetrates through the middle part of the bottom surface of the grinding box and then is in threaded connection with the middle part of the second screening plate, the outer wall of the second screening plate is in sliding connection with the inner wall of the grinding box, and the outer wall of the threaded shaft, which is positioned at the bottom surface of the grinding box, is sequentially sleeved with the first gear and the second gear from top to bottom; the rotating shaft penetrates through the threaded shaft, the outer wall of the rotating shaft, which is positioned at the bottom end of the threaded shaft, is sleeved with a third gear, the outer wall of the rotating shaft, which is positioned at the upper end of the threaded shaft, is provided with a shaft sleeve, the bottom surface of the shaft sleeve is rotatably connected with the top surface of the threaded shaft, the inner wall of the shaft sleeve is rotatably connected with the outer wall of the rotating shaft, and the outer wall of the shaft sleeve is slidably connected with a first screening plate; the rotating shaft is positioned on the upper side of the first screening plate and penetrates through the grinding wheel, and the rotating shaft and the grinding wheel are coaxial; the connecting component is arranged on the bottom surface of the grinding box on one side of the rotating shaft and comprises a rotating rod, a first half gear, a second half gear, a third half gear and a first transmission wheel, the rotating rod is rotatably connected with the bottom surface of the grinding box, the central axis of the rotating rod is parallel to the central axis of the rotating shaft, the outer wall of the rotating rod is sequentially sleeved with the first half gear, the second half gear, the third half gear and the first transmission wheel from top to bottom, the first half gear corresponds to the first gear, the second half gear corresponds to the second gear, the third half gear corresponds to the third gear, an intermediate gear is arranged between the first half gear and the first gear and is meshed with the first gear, the teeth of the first half gear and the second half gear are symmetrically arranged about the axis of the rotating rod, and the teeth of the third half gear and the first half gear are arranged in the same direction; the driving member is arranged at the rear end of the connecting member and comprises a motor, a second driving wheel and a first bevel gear, the motor is arranged on the bottom surface of the milling box, an output shaft of the motor is sequentially sleeved with the second driving wheel and the first bevel gear from top to bottom, and the second driving wheel is connected with the first driving wheel through a first driving belt.

Preferably, in order to avoid axis skew, lead to the grinding miller axis skew to take place among the axis of rotation process, axis of rotation top outer wall is connected with grinding vessel inner wall respectively through three bracing pieces, three the bracing piece revolutes axis of rotation evenly distributed and the cross section of bracing piece is triangle-shaped.

Preferably, the diameter of the first gear is smaller than that of the second gear and smaller than that of the third gear, and the diameter of the first gear is the same as that of the intermediate gear; the diameter of the third gear is the same as that of the third half gear; the second half gear diameter is greater than the third half gear diameter and the second half gear diameter is greater than the first half gear diameter.

The grinding assembly comprises a driving shaft, a driven shaft, a grinding roller, a third transmission wheel, a driving gear, a driven gear, an output rotating shaft, a second bevel gear and a fourth transmission wheel, wherein the driving shaft and the driven shaft are arranged in parallel, one ends of the driving shaft and the driven shaft are rotatably connected with the inner wall of the grinding box, which is positioned on the upper side of the grinding cylinder, and the other ends of the driving shaft and the driven shaft penetrate through the side wall of the other side of the grinding box; the outer walls of the driving shaft and the driven shaft are sleeved with grinding rollers; the outer wall of the driving shaft, which is positioned outside the milling box, is sequentially sleeved with a third driving wheel and a driving gear from the part close to the milling box to the part away from the milling box, and the outer wall of the driven shaft, which is positioned outside the milling box, is sleeved with a driven gear which is meshed with the driving gear; a connecting rod is arranged between the two supports on one side of the third driving wheel, an output rotating shaft is arranged on the connecting rod corresponding to the first bevel gear, the outer wall of one side, close to the first bevel gear, of the output rotating shaft is sleeved with a second bevel gear, the second bevel gear is meshed with the first bevel gear, the outer wall of one side, far away from the first bevel gear, of the output rotating shaft is sleeved with a fourth driving wheel, and the fourth driving wheel is connected with the third driving wheel through a second driving belt.

Preferably, the inner wall of the grinding cylinder is provided with a first cleaning brush corresponding to the grinding roller respectively, and the first cleaning brush is used for cleaning the grinding roller and preventing powder from being adhered to the outer wall of the grinding roller.

Further optimization is carried out, be connected through the annular connecting block between grinding vessel outer wall and the crocus incasement wall to realize that the grinding vessel is at the inside effective support of crocus incasement.

The grinding wheel is in a circular truncated cone structure with a small upper end diameter and a large lower end diameter, and the top surface of the grinding wheel is inclined from one end close to the rotating shaft to one end far away from the rotating shaft; grinding teeth and a second cleaning brush are arranged on the inner wall of the grinding cylinder corresponding to the bottom end of the grinding wheel, the grinding teeth and the second cleaning brush are distributed at intervals, and the grinding teeth and the second cleaning brush are uniformly distributed around the central axis of the grinding wheel.

The vibration component comprises a sliding sleeve, a T-shaped sliding rod, a compression spring, a rotating rod, a first trapezoid block and a second trapezoid block; the middle part of the sliding sleeve is hollow, the outer wall of the top surface of the sliding sleeve is provided with an annular boss, the inner wall of the sliding sleeve is in sliding connection with the outer wall of the grinding cylinder, and the outer wall of the sliding sleeve is in sliding connection with the inner wall of the grinding box; the first screening plate is arranged on the bottom surface of the sliding sleeve and is fixedly connected with the inner wall of the bottom side of the sliding sleeve; the top surface of the sliding sleeve is positioned outside the grinding cylinder and is provided with a plurality of T-shaped sliding rods which are uniformly distributed around the central axis of the sliding sleeve and penetrate through an annular connecting block; the compression spring is sleeved on the outer wall of the vertical rod of the T-shaped sliding rod, the upper end of the compression spring is connected with the bottom surface of the cross rod of the T-shaped sliding rod, and the lower end of the compression spring is connected with the top surface of the annular connecting block; a rotating rod is arranged on the outer wall of the rotating shaft and positioned between the first screening plate and the bottom surface of the grinding cylinder, a first trapezoidal block is arranged at the end part of the rotating rod, which is far away from the rotating shaft, and the section of the first trapezoidal block is of a right-angled trapezoidal structure with a narrow bottom end and a wide top end; the inner wall of the sliding sleeve is provided with a second trapezoid block corresponding to the first trapezoid block, the cross section of the second trapezoid block is of a right-angle trapezoid structure with a wide bottom end and a narrow top end, and the inclined surface of the first trapezoid block corresponds to the inclined surface of the second trapezoid block.

Preferably, the number of the T-shaped sliding rods is 4-8, and 4-8 groups of corresponding compression springs are provided.

Preferably, the rotary rods are not less than two and are uniformly arranged around the central axis of the rotating shaft.

Preferably, the bottom surface of the annular connecting block is positioned outside the T-shaped sliding rod and is provided with a rubber buffer block.

Preferably, the mesh diameter of the first screening plate is larger than that of the second screening plate.

The invention has the following technical effects:

the grinding assembly is driven by the driving assembly to operate, so that the wheat entering the grinding box is roughly ground, and the wheat is crushed into coarse powdery particles; utilize first cleaning brush to clean, scrape the material to grinding assembly, avoid grinding assembly surface's wheat flour to glue too much and influence crushing effect, also can effectively avoid grinding assembly to glue too much and the problem that the jamming appears because of wheat flour. The wheat grains which are coarsely ground and crushed are finely ground through the arrangement of the grinding wheel, so that the flour grains are refined; through the interval distribution of grinding tooth and second cleaning brush, the rotation of cooperation grinding miller, both provide the frictional force among the grinding process, effectively realize again to grinding wheel surface's cleanness, avoid grinding miller surface adhesion flour and influence grinding effect. The ground flour is screened for the first time through the matching of the vibration assembly and the first screening plate, the vibration assembly drives the first screening plate to move up and down and complete vibration, and therefore the flour particles are effectively prevented from blocking meshes of the first screening plate; realize carrying out the secondary screening to the flour after the first screening through the second screening board, utilize the screw shaft to drive the second screening board and reciprocate to screen, avoid flour to block up the mesh of second screening board to flour. Through the arrangement of the first half gear, the second half gear and the third half gear, reciprocating up-and-down movement of the first screening plate and the second screening plate is achieved, so that primary screening and secondary screening are effectively carried out, refined flour is finally obtained, network blockage of the screening plates is avoided, and screening efficiency is improved.

In addition, this application device adopts single motor can realize thick, fine grinding and twice screening, convenient operation, effective resources are saved, and grind effectual, improved the production quality and the productivity of flour.

Drawings

FIG. 1 is a schematic structural view (in front cross section) of a milling apparatus in example 1 of the present invention.

Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Fig. 4 is a partially enlarged view of C in fig. 1.

Fig. 5 is a partial enlarged view of D in fig. 1.

Fig. 6 is a partial enlarged view of E in fig. 1.

Fig. 7 is a sectional view F-F of fig. 6.

FIG. 8 is a schematic side sectional view showing a constitution of a pulverizer of example 2 of the present invention.

Fig. 9 is a partial view of fig. 8 taken along direction G.

Fig. 10 is a partial enlarged view of H in fig. 8.

FIG. 11 is a schematic front sectional view of a pulverizer of embodiment 3 of the present invention.

Wherein, 10, grinding box; 11. an "L" shaped bracket; 12. an inclined plate; 13. a support; 130. a connecting rod; 14. ring shape connecting blocks; 140. a rubber buffer block; 15. a collection box; 20. a drive assembly; 21. a threaded shaft; 210. a ball bearing; 22. a first gear; 220. an intermediate gear; 23. a second gear; 24. a rotating shaft; 25. a shaft sleeve; 26. a third gear; 27. a connecting member; 271. a rotating rod; 272. a first half gear; 273. a second half gear; 274. a third half gear; 275. a first drive pulley; 2750. a first drive belt; 28. a drive member; 281. a motor; 282. a second transmission wheel; 283. a first bevel gear; 30. a grinding cylinder; 31. a first cleaning brush; 32. a support bar; 33. grinding the teeth; 34. a second cleaning brush; 40. a grinding assembly; 41. a drive shaft; 42. a driven shaft; 43. a grinding roller; 44. a third transmission wheel; 440. a second belt; 45. a driving gear; 46. a driven gear; 47. an output shaft; 48. a second bevel gear; 49. a fourth transmission wheel; 50. a grinding wheel; 60. a vibrating assembly; 61. a slipping sleeve; 62. a T-shaped sliding rod; 63. a compression spring; 64. rotating the rod; 65. a first trapezoidal block; 66. a second trapezoidal block; 70. a first screening plate; 80. a second screening plate; 200. and (4) folding the sleeve.

Detailed description of the preferred embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.

Examples

As shown in fig. 1 to 10, a milling device for flour processing is characterized in that: comprises a grinding box 10, a driving component 20, a grinding cylinder 30, a grinding component 40, a grinding wheel 50, a vibration component 60, a first screening plate 70 and a second screening plate 80;

the milling box 10 has no top cover, and the outer walls of the two sides of the top end of the milling box are respectively provided with an inclined plate 12 through an L-shaped bracket 11, and the inclined plate 12 inclines towards one end close to the inner side of the milling box 10 (as shown in figure 1, a V-shaped structure is formed between the two inclined plates 12). Four corners of 10 bottoms of crocus box set up support 13 respectively (be crocus box 10 bottoms set up four supports 13 promptly) for support whole milling equipment. Milling box 10 inner wall bottom surface sets up the discharge gate for the milling box lateral wall of inclined plane and inclined plane bottom, the milling box 10 outside corresponds the discharge gate and sets up collecting box 15 (as shown in fig. 8, the inclined plane of milling box 10 bottom surface becomes certain angle with the axis of driving shaft 41, this angle is set for according to actual conditions, the inclined plane is by the one end slope of being close to third drive wheel 44 to the one end of keeping away from third drive wheel 44, collecting box 15 sets up the side of one side of keeping away from third drive wheel 44 at milling box 10). The driving assembly 20 is arranged on the outer wall of the bottom of the grinding box 10 and used for driving the grinding assembly 40, the grinding wheel 50, the first sieving plate 70 and the second sieving plate 80 to move; the grinding cylinder 30 is arranged inside the milling box 10, the grinding cylinder 30 and the milling box 10 are coaxial, the upper end of the grinding cylinder 30 is provided with a funnel-shaped structure with a large upper part and a small lower part, and the top surface and the bottom surface of the grinding cylinder 30 are both provided with hollow structures (as shown in fig. 1 and fig. 8); the grinding assembly 40 is arranged at the upper end of the grinding cylinder 30 (i.e. the grinding assembly 40 is arranged at the mouth of the grinding cylinder 30, as shown in fig. 1), and the grinding wheel 50 is arranged in the grinding cylinder 30 at the lower side of the funnel-shaped structure (the grinding cylinder 30); the lower side of the grinding cylinder 30 is provided with a first screening plate 70 in the grinding box 10, the first screening plate 70 is provided with a vibration component 60 all around, and the lower side of the first screening plate 70 is provided with a second screening plate 80.

The driving assembly 20 comprises a threaded shaft 21, a first gear 22, a second gear 23, a rotating shaft 24, a shaft sleeve 25, a third gear 26, a connecting member 27 and a driving member 28; the threaded shaft 21 and the rotating shaft 24 are coaxial and are positioned in the middle of the milling box 10 (namely the central axes of the threaded shaft 21, the rotating shaft 24 and the milling box 10 are collinear), the threaded shaft 21 is sleeved on the outer wall of the rotating shaft 24, and the inner wall of the threaded shaft 21 is rotatably connected with the outer wall of the rotating shaft 24 (namely the diameter of the threaded shaft 21 is larger than that of the rotating shaft 24); the upper end of the threaded shaft 21 penetrates through the middle of the bottom surface of the milling box 10 and then is in threaded connection with the middle of the second sieving plate 80, the outer wall of the second sieving plate 80 is in sliding connection with the inner wall of the milling box 10, and the outer wall of the threaded shaft 21, which is positioned at the bottom surface of the milling box 10, is sequentially sleeved with the first gear 22 and the second gear 23 from top to bottom; a rotating shaft 24 penetrates through the threaded shaft 21, the outer wall of the rotating shaft 24, which is located at the bottom end of the threaded shaft 21, is sleeved with a third gear 26, the outer wall of the rotating shaft 24, which is located at the upper end of the threaded shaft 21, is provided with a shaft sleeve 25, and the bottom surface of the shaft sleeve 25 is rotatably connected with the top surface of the threaded shaft 21 (as shown in fig. 5, the bottom surface of the shaft sleeve 25 is rotatably connected with the top surface of the threaded shaft 21 by arranging balls 210, that is, the bottom surface of the shaft sleeve 25, which is located at the outer side of the rotating shaft 24, is uniformly provided with a plurality of balls 210 around the central axis of the shaft sleeve 25, the top surface of the threaded shaft 21, which corresponds to the balls 210, is provided with an annular chute, the balls 210 are clamped in the annular chute and can rotate in the annular chute), the inner wall of the shaft sleeve 25 is rotatably connected with the outer wall of the rotating shaft 24, and the outer wall of the shaft sleeve 25 is slidably connected with a first sieving plate 70 (as shown in fig. 5, the outer wall at the bottom end of the shaft sleeve 25 can be provided with an annular limiting sleeve for hard sliding of the first sieving plate 70; the rotating shaft 24 is positioned on the upper side of the first screening plate 70 and penetrates through the grinding wheel 50, and the rotating shaft 24 and the grinding wheel 50 are coaxial (namely, the grinding wheel 50 is sleeved on the outer wall of the rotating shaft 24); the connecting member 27 is provided on the bottom surface of the grinding box 10 on the side of the rotation shaft 24, and includes a rotation shaft 271, a first half gear 272, a second half gear 273, a third half gear 274, and a first transmission gear 275 (to be described: in the present application, the first half gear 272, the second half gear 273, and the third half gear 274 are all incomplete gears, the tooth sections of the incomplete gears are distributed and not more than half of the circumference of the gears, the rotating rod 271 is rotatably connected with the bottom surface of the milling box 10, the central axis of the rotating rod 271 is parallel to the central axis of the rotating shaft 24 (as shown in fig. 1 and fig. 4), the outer wall of the rotating rod 271 is sequentially sleeved with the first half gear 272, the second half gear 273, the third half gear 274, and the first driving wheel 275 from top to bottom, the first half gear 272 corresponds to the first gear 22, the second half gear 273 corresponds to the second gear 23, the third half gear 274 corresponds to the third gear 26 (i.e. the first half gear 272 and the first gear 22 can realize driving, the second half gear 273 and the second gear 23 can realize driving, and the third half gear 274 and the third gear 26 can realize driving), an intermediate gear 220 is arranged between the first half gear 272 and the first gear 22, and the intermediate gear 220 is meshed with the first gear 272 (as shown in fig. 4, the transmission between the first half gear 272 and the first gear 22 is realized by arranging the intermediate gear 220, the intermediate gear 220 is sleeved on the outer wall of a rotating shaft rotationally connected with the bottom surface of the grinding box 10, the transmission between the second half gear 273 and the second gear 23 and between the third half gear 274 and the third gear 26 can be directly realized), the teeth of the first half gear 272 and the second half gear 273 are symmetrically arranged about the axis of the rotating rod 271 (i.e. the tooth section of the first half gear 272 corresponds to the smooth section of the second half gear 273, the smooth section of the first half gear 272 corresponds to the tooth section of the second half gear 273), the third half gear 274 is disposed with the teeth of the first half gear 272 in the same direction (i.e., the tooth segment of the first half gear 272 corresponds to the tooth segment of the third half gear 274, and the smooth segment of the first half gear 272 corresponds to the smooth segment of the third half gear 274); the driving member 28 is disposed at the rear end of the connecting member 27 (as shown in fig. 8, the driving member 28 is disposed at a side of the connecting member 27 away from the collecting box 15), and includes a motor 281, a second driving wheel 282 and a first bevel gear 283, the motor 281 (fixed) is disposed at the bottom of the milling box 10 (fixed by matching a motor support with a screw), an output shaft thereof is sequentially sleeved with the second driving wheel 282 and the first bevel gear 283 from top to bottom, and the second driving wheel 282 and the first driving wheel 275 are connected by a first driving belt 2750 to realize transmission. In order to avoid the axial deviation of the rotating shaft 24 during the rotation process and the axial deviation of the grinding wheel 50, the outer wall of the top end of the rotating shaft 24 is respectively connected with the inner wall of the grinding cylinder 30 through three support rods 32, the three support rods 32 are uniformly distributed around the central axis of the rotating shaft 24, and the cross sections of the support rods 32 are triangular (as shown in fig. 2).

The grinding assembly 40 comprises a driving shaft 41, a driven shaft 42, a grinding roller 43, a third transmission wheel 44, a driving gear 45, a driven gear 46, an output rotating shaft 47, a second bevel gear 48 and a fourth transmission wheel 49, wherein the driving shaft 41 and the driven shaft 42 are arranged in parallel, one ends of the driving shaft 41 and the driven shaft 42 are rotatably connected with the inner wall of the grinding box 10 positioned at the upper side of the grinding cylinder 30, and the other ends of the driving shaft 41 and the driven shaft 42 penetrate through the side wall of the other side of the grinding box 10 (as shown in fig. 8); the outer walls of the driving shaft 41 and the driven shaft 42 are (fixedly) sleeved with grinding rollers 43; the outer wall of the driving shaft 41, which is positioned outside the milling box 10, is sequentially sleeved with a third driving wheel 44 and a driving gear 45 from the part close to the milling box 10 to the part away from the milling box, the outer wall of the driven shaft 42, which is positioned outside the milling box 10, is sleeved with a driven gear 46, and the driven gear 46 is meshed with the driving gear 45; a connecting rod 130 is arranged between the two brackets 13 at one side of the third driving wheel 44, an output rotating shaft 47 is arranged on the connecting rod 130 corresponding to the first bevel gear 283, the outer wall of one side of the output rotating shaft 47 close to the first bevel gear 283 is sleeved with the second bevel gear 48, the second bevel gear 48 is meshed with the first bevel gear 283, the outer wall of one side of the output rotating shaft 47 far away from the first bevel gear 283 is sleeved with the fourth driving wheel 49, and the fourth driving wheel 49 is connected with the third driving wheel 44 through a second driving belt 440 (as shown in fig. 8 and 10).

The inner wall of the grinding cylinder 30 is provided with first cleaning brushes 31 (as shown in fig. 1) corresponding to the grinding rollers 43, respectively, for cleaning the grinding rollers 43 and preventing powder from adhering to the outer walls of the grinding rollers. The outer wall of the grinding cylinder 30 is connected with the inner wall of the grinding box 10 through the annular connecting block 14, so that the effective support of the grinding cylinder 30 in the grinding box 10 is realized.

The grinding wheel 50 is a circular truncated cone structure with a small upper end diameter and a large lower end diameter, and the top surface of the grinding wheel 50 is inclined from one end close to the rotating shaft 24 to one end far away from the rotating shaft 24 (as shown in fig. 1 and 8, that is, the top surface of the grinding wheel 50 is a conical surface); the inner wall of the grinding cylinder 30 is provided with grinding teeth 33 and a second cleaning brush 34 corresponding to the bottom end of the grinding wheel 50, the grinding teeth 33 and the second cleaning brush 34 are distributed at intervals, and the grinding teeth 33 and the second cleaning brush 34 are uniformly distributed around the central axis of the grinding wheel 50 (as shown in fig. 3).

The vibration assembly 60 comprises a sliding sleeve 61, a T-shaped sliding rod 62, a compression spring 63, a rotating rod 64, a first trapezoid block 65 and a second trapezoid block 66; the middle part of the sliding sleeve 61 is hollow, the outer wall of the top surface of the sliding sleeve is provided with an annular boss (as shown in figures 1 and 6), the inner wall of the sliding sleeve 61 is in sliding connection with the outer wall of the grinding cylinder 30, and the outer wall of the sliding sleeve 61 is in sliding connection with the inner wall of the grinding box 10 (as shown in figure 1, the inner wall of the grinding box 10 is provided with a protruding part corresponding to the annular boss of the sliding sleeve 61); the first screening plate 70 is arranged on the bottom surface of the sliding sleeve 61 and is fixedly connected with the inner wall of the bottom side of the sliding sleeve 61; the top surface of the sliding sleeve 61 is provided with a plurality of T-shaped sliding rods 62 which are uniformly distributed around the central axis of the sliding sleeve 61 and are positioned outside the grinding cylinder 30, and the T-shaped sliding rods 62 (vertical rods) penetrate through the annular connecting block 14; the compression spring 63 is sleeved on the outer wall of the vertical rod of the T-shaped sliding rod 62, the upper end of the compression spring 63 is connected with the bottom surface of the cross rod of the T-shaped sliding rod 62, and the lower end of the compression spring 63 is connected with the top surface of the annular connecting block 14; a rotating rod 64 is arranged on the outer wall of the rotating shaft 24 and between the first screening plate 70 and the bottom surface of the grinding cylinder 30, a first trapezoidal block 65 is arranged at the end part of one end of the rotating rod 64 far away from the rotating shaft 24, and the section of the first trapezoidal block 65 is in a right-angle trapezoidal structure with a narrow bottom end and a wide top end (as shown in fig. 7); the inner wall of the sliding sleeve 61 is provided with a second trapezoid block 66 corresponding to the first trapezoid block 65, the cross section of the second trapezoid block 66 is a right-angle trapezoid structure (as shown in fig. 7) with a wide bottom end and a narrow top end, and the inclined surface 65 of the first trapezoid block corresponds to the inclined surface of the second trapezoid block 66 (i.e. the inclined surface of the first trapezoid block 65 can be in inclined contact with the inclined surface of the second trapezoid block 66, as shown in fig. 7). The number of the "T" -shaped slide bars 61 is 4 to 8 (preferably 6), and 4 to 8 (preferably 6) sets of the corresponding compression springs 63 are provided. The number of the rotating rods 64 is not less than two, and the rotating rods 64 are uniformly arranged around the central axis of the rotating shaft (as shown in fig. 1, the number of the rotating rods 64 is two in this embodiment). The bottom surface of the annular connecting block 14 is provided with a rubber buffer block 140 (shown in figure 6) outside the T-shaped sliding rod 61.

The mesh diameter of the first screening plate 70 is larger than the mesh diameter of the second screening plate 80.

Examples

As a further optimization scheme for the embodiment 1, on the basis of the embodiment 1, the diameter of the first gear 22 is smaller than that of the second gear 23 and that of the third gear 26, and the diameter of the first gear 22 is the same as that of the intermediate gear 220; the diameter of the third gear 26 is the same as the diameter of the third half gear 274; the second half-gear 273 has a diameter greater than the diameter of the third half-gear 274 and the second half-gear 273 has a diameter greater than 272 the diameter of the first half-gear.

To ensure that the second sifting plate 80 moves the same distance up and down, the gear ratio between the first half-gear 272 and the intermediate gear 220 is the same as the gear ratio between the second half-gear 273 and the second gear 23.

Example 3:

as a further optimization scheme for embodiment 1, on the basis of embodiment 1, as shown in fig. 11, a folding sleeve 200 is disposed between the first screening plate 70 and the second screening plate 80 and outside the threaded shaft 21 and the shaft sleeve 25, an upper end of the folding sleeve 200 is fixedly connected to a bottom middle portion of the first screening plate 70, on which no mesh is formed, and a lower end of the folding sleeve 200 is fixedly connected to a top middle portion of the second screening plate 80, on which no mesh is formed. The arrangement of the folding sleeve 200 effectively avoids flour from attaching to the threaded shaft 21 and the shaft sleeve 25 and being difficult to clean in the screening process. The folding sleeve 200 may be configured as a bellows sleeve.

In this application, unless otherwise specified, the rotational connection is achieved by a sleeved ball bearing.

Example 4:

a milling method for flour processing is characterized in that: the milling equipment adopted in the embodiment 2 or the embodiment 3 specifically comprises the following steps:

the method comprises the following steps: putting wheat into a wheat washer (adopting a conventional common wheat washer) to remove impurities, and drying wheat grains after impurity removal;

step two: peeling the wheat grains obtained in the step one by using a wheat peeling machine (a conventional common wheat peeling machine) to obtain peeled wheat grains;

step three: the motor 281 is started to drive the second driving wheel 282 and the first bevel gear 283 to rotate respectively, so as to drive the grinding assembly 40, the grinding wheel 50, the first screening plate 70 and the second screening plate 80 to move; then adding the wheat grains peeled in the step two, and sequentially realizing the procedures of coarse grinding, fine grinding, primary screening and fine screening of the wheat grains to obtain refined flour;

step four: after the milling process is completed, the motor 281 is informed to start; then collect the large granule flour on first screening board 70 and second screening board 80, wash milling equipment at last.

The specific working principle of the step three is as follows:

the motor 281 and the motor 281 are started to drive the second driving wheel 282 and the first bevel gear 283 to rotate, the second driving wheel 282 realizes the rotation of the rotating rod 271 through the first driving belt 2750 and the first driving wheel 275, and the first bevel gear 283 realizes the rotation of the driving shaft 41 through the matching of the second bevel gear 48, the output rotating shaft 47, the fourth driving wheel 49, the second driving belt 440 and the third driving wheel 44. Then, the added wheat after impurity removal and peeling falls between the two grinding rollers 43 due to gravity and the drainage of the inclined plate 12, at the moment, the driving shaft 41 drives the driven shaft 42 to rotate simultaneously and reversely through the matching between the driving gear 45 and the driven gear 46, so that the wheat grains are crushed through the reverse rotation extrusion of the two grinding rollers 43, and the rough grinding process is finished.

The wheat after rough grinding falls into the grinding cylinder 30 under the action of gravity and falls on the bottom of the grinding wheel 50 under the guidance of the inclined plane of the supporting rod 32 and the inclined plane of the grinding wheel 50; at this time, when the rotating rod 271 rotates to drive the third half gear 274 to rotate and the tooth section of the third half gear 274 is engaged with the third gear 26, the rotating shaft 24 rotates, so as to drive the grinding wheel 50 to rotate, and the friction between the bottom surface of the grinding wheel 50 and the grinding teeth 33 realizes the grinding of the crushed wheat, thereby completing the fine grinding process. Meanwhile, when the smooth section of the third half gear 274 is in contact with the third gear 26, the grinding of the crushed wheat is stopped by the rotating shaft 24 and the grinding wheel 50, so that the flow rate of grinding is controlled, and thus the intermittent grinding is repeated. The intermittent grinding can avoid the problems of accumulation and agglomeration caused by a large amount of flour falling on the first screening plate 70; simultaneously, fine screening can be realized and the meshes of the screening plate are prevented from being blocked by flour in a single small-batch screening mode.

The flour after fine grinding falls on the first screening plate 70, at this time, when the rotating rod 271 rotates to drive the third half gear 274 to rotate, and the tooth section of the third half gear 274 is meshed with the third gear 26, the rotating shaft 24 rotates, and the rotating shaft 24 drives the first trapezoidal block 65 to rotate around the central axis of the rotating shaft 24 through the rotating rod 64, so that the inclined surface of the first trapezoidal block 65 is gradually close to the inclined surface of the second trapezoidal block 66; as the rotation proceeds, the inclined surface of the first trapezoid block 65 contacts with the inclined surface of the second trapezoid block 66 and pushes the second trapezoid block 66 to move downwards, the second trapezoid block 66 drives the sliding sleeve 61, the T-shaped sliding rod 62 and the first screening plate 70 to move downwards simultaneously, and the compression spring 63 is compressed; as the rotation continues, the first trapezoidal block 65 is separated from the second trapezoidal block 66, and due to the elastic force of the compression spring 63, the sliding sleeve 61, the T-shaped sliding rod 62 and the first screening plate 70 move upwards rapidly to screen flour on the first screening plate 70; meanwhile, the top surface of the sliding sleeve 61 impacts the rubber buffer block 140 to generate vibration in the upward movement process, so that the flour on the first screening plate 70 can be screened more conveniently; the rubber buffer block 140 absorbs potential energy of the sliding sleeve 61, and damage caused by collision or repeated sliding of the sliding sleeve 61 is effectively avoided.

Flour screened by the first screening plate 70 falls on the second screening plate 80, at the moment, the rotating rod 271 rotates to drive the third half gear 274 to rotate and simultaneously drive the first half gear 272 and the second half gear 273 to rotate, at the moment, the first half gear 272 is meshed with the intermediate gear 220, so that the first gear 22 is driven to rotate, the first gear 22 drives the threaded shaft 21 to rotate, the upward movement of the second screening plate 80 is realized, when the second screening plate 80 moves to the uppermost end of the threaded shaft 21, the smooth section of the first half gear 272 corresponds to the intermediate gear 220, the tooth section of the second half gear 273 is meshed with the second gear 23, the second screening plate 80 is driven to move downwards through the rotation of the second gear 23, and the flour on the second screening plate 80 is screened through the reciprocating upward and downward movement.

The screened flour falls into a collecting box 15 through the inclined bottom surface of the milling box 10 to be collected.

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.

Claims

1. The utility model provides a milling equipment for flour processing which characterized in that: comprises a grinding box (10), a driving component (20), a grinding cylinder (30), a grinding component (40), a grinding wheel (50), a vibration component (60), a first screening plate (70) and a second screening plate (80); the milling box (10) is not provided with a top cover; the driving assembly (20) is arranged on the outer wall of the bottom of the grinding box (10); the grinding cylinder (30) is arranged inside the grinding box (10), the grinding cylinder (30) and the grinding box (10) are coaxial, the upper end of the grinding cylinder (30) is of a funnel-shaped structure with a large upper part and a small lower part, and the top surface and the bottom surface of the grinding cylinder (30) are both of hollow structures; the upper end of the grinding cylinder (30) is provided with a grinding assembly (40), and a grinding wheel (50) is arranged in the grinding cylinder (30) positioned at the lower side of the funnel-shaped structure; a first screening plate (70) is arranged in the grinding box (10) at the lower side of the grinding cylinder (30), vibration assemblies (60) are arranged around the first screening plate (70), and a second screening plate (80) is arranged at the lower side of the first screening plate (70);

the driving assembly (20) comprises a threaded shaft (21), a first gear (22), a second gear (23), a rotating shaft (24), a shaft sleeve (25), a third gear (26), a connecting component (27) and a driving component (28); the threaded shaft (21) and the rotating shaft (24) are coaxial and are positioned in the middle of the grinding box (10), the threaded shaft (21) is sleeved on the outer wall of the rotating shaft (24), and the inner wall of the threaded shaft (21) is rotatably connected with the outer wall of the rotating shaft (24); the upper end of the threaded shaft (21) penetrates through the middle of the bottom surface of the milling box (10) and then is in threaded connection with the middle of the second screening plate (80), the outer wall of the second screening plate (80) is in sliding connection with the inner wall of the milling box (10), and the outer wall of the threaded shaft (21) positioned on the bottom surface of the milling box (10) is sequentially sleeved with the first gear (22) and the second gear (23) from top to bottom; the rotating shaft (24) penetrates through the threaded shaft (21), the outer wall, located at the bottom end of the threaded shaft (21), of the rotating shaft (24) is sleeved with the third gear (26), the outer wall, located at the upper end of the threaded shaft (21), of the rotating shaft (24) is provided with a shaft sleeve (25), the bottom surface of the shaft sleeve (25) is rotatably connected with the top surface of the threaded shaft (21), the inner wall of the shaft sleeve (25) is rotatably connected with the outer wall of the rotating shaft (24), and the outer wall of the shaft sleeve (25) is slidably connected with the first screening plate (70); the rotating shaft (24) is positioned on the upper side of the first screening plate (70) and penetrates through the grinding wheel (50), and the rotating shaft (24) and the grinding wheel (50) are coaxial; the connecting member (27) is arranged on the bottom surface of the powder grinding box (10) on one side of the rotating shaft (24) and comprises a rotating rod (271), a first half gear (272), a second half gear (273), a third half gear (274) and a first transmission wheel (275), the rotating rod (271) is rotatably connected with the bottom surface of the powder grinding box (10), the central axis of the rotating rod (271) is parallel to that of the rotating shaft (24), the outer wall of the rotating rod (271) is sequentially sleeved with the first half gear (272), the second half gear (273), the third half gear (274) and the first transmission wheel (275) from top to bottom, the first half gear (272) corresponds to the first gear (22), the second half gear (273) corresponds to the second gear (23), the third half gear (274) corresponds to the third gear (26), an intermediate gear (220) is arranged between the first half gear (272) and the first gear (22) and is meshed with the first gear (22), the teeth of the first half gear (272) and the teeth of the second half gear (273) are symmetrically arranged relative to the rotating rod (271), and the third half gear (274) and the same direction as that of the third half gear (272); the driving member (28) is arranged at the rear end of the connecting member (27) and comprises a motor (281), a second driving wheel (282) and a first bevel gear (283), the motor (281) is arranged at the bottom of the grinding box (10), an output shaft of the motor (281) is sequentially sleeved with the second driving wheel (282) and the first bevel gear (283) from top to bottom, and the second driving wheel (282) is connected with the first driving wheel (275) through a first driving belt (2750);

the grinding assembly (40) comprises a driving shaft (41), a driven shaft (42), a grinding roller (43), a third transmission wheel (44), a driving gear (45), a driven gear (46), an output rotating shaft (47), a second bevel gear (48) and a fourth transmission wheel (49), wherein the driving shaft (41) and the driven shaft (42) are arranged in parallel, one ends of the driving shaft (41) and the driven shaft (42) are rotatably connected with the inner wall of the grinding box (10) positioned on the upper side of the grinding cylinder (30), and the other ends of the driving shaft (41) and the driven shaft (42) penetrate through the side wall of the other side of the grinding box (10); the outer walls of the driving shaft (41) and the driven shaft (42) are sleeved with grinding rollers (43); the outer wall of the driving shaft (41) positioned on the outer side of the milling box (10) is sequentially sleeved with a third driving wheel (44) and a driving gear (45) from the part close to the milling box (10) to the part far away from the milling box, the outer wall of the driven shaft (42) positioned on the outer side of the milling box (10) is sleeved with a driven gear (46), and the driven gear (46) is meshed with the driving gear (45); a connecting rod (130) is arranged between the two supports (13) positioned on one side of the third driving wheel (44), an output rotating shaft (47) is arranged on the connecting rod (130) corresponding to the first bevel gear (283), the outer wall of one side, close to the first bevel gear (283), of the output rotating shaft (47) is sleeved with a second bevel gear (48), the second bevel gear (48) is meshed with the first bevel gear (283), the outer wall of one side, far away from the first bevel gear (283), of the output rotating shaft (47) is sleeved with a fourth driving wheel (49), and the fourth driving wheel (49) is connected with the third driving wheel (44) through a second driving belt (440);

the outer wall of the grinding cylinder (30) is connected with the inner wall of the grinding box (10) through an annular connecting block (14);

the vibration component (60) comprises a sliding sleeve (61), a T-shaped sliding rod (62), a compression spring (63), a rotating rod (64), a first trapezoidal block (65) and a second trapezoidal block (66); the middle part of the sliding sleeve (61) is hollow, the outer wall of the top surface of the sliding sleeve is provided with an annular boss, the inner wall of the sliding sleeve (61) is in sliding connection with the outer wall of the grinding cylinder (30), and the outer wall of the sliding sleeve (61) is in sliding connection with the inner wall of the grinding box (10); the first screening plate (70) is arranged on the bottom surface of the sliding sleeve (61) and is fixedly connected with the inner wall of the bottom side of the sliding sleeve (61); the top surface of the sliding sleeve (61) is positioned outside the grinding cylinder (30) and is provided with a plurality of T-shaped sliding rods (62) which are uniformly distributed around the central axis of the sliding sleeve (61), and the T-shaped sliding rods (62) penetrate through the annular connecting block (14); the compression spring (63) is sleeved on the outer wall of the vertical rod of the T-shaped sliding rod (62), the upper end of the compression spring (63) is connected with the bottom surface of the cross rod of the T-shaped sliding rod (62), and the lower end of the compression spring (63) is connected with the top surface of the annular connecting block (14); a rotating rod (64) is arranged on the outer wall of the rotating shaft (24) and is positioned between the first screening plate (70) and the bottom surface of the grinding cylinder (30), a first trapezoidal block (65) is arranged at the end part, far away from the rotating shaft (24), of one end of the rotating rod (64), and the cross section of the first trapezoidal block (65) is of a right-angle trapezoidal structure with a narrow bottom end and a wide top end; the inner wall of the sliding sleeve (61) is provided with a second trapezoid block (66) corresponding to the first trapezoid block (65), the section of the second trapezoid block (66) is of a right-angle trapezoid structure with a wide bottom end and a narrow top end, and the inclined surface of the first trapezoid block (65) corresponds to the inclined surface of the second trapezoid block (66).

2. The milling apparatus as claimed in claim 1, wherein: the outer wall of two sides of the top end of the milling box (10) is respectively provided with an inclined plate (12) through an L-shaped support (11), and the inclined plate (12) inclines towards one end close to the inner side of the milling box (10).

3. The milling apparatus for flour processing according to claim 1 or 2, wherein: four corners of the bottom end of the milling box (10) are respectively provided with a bracket (13).

4. A milling apparatus as claimed in claim 3, wherein: crocus case (10) lateral wall that crocus case (10) inner wall bottom surface is inclined plane and inclined plane bottom sets up the discharge gate, crocus case (10) outside corresponds the discharge gate and sets up collecting box (15).

5. The milling apparatus as claimed in claim 1, wherein: the grinding wheel (50) is in a circular truncated cone structure with a small upper end diameter and a large lower end diameter, and the top surface of the grinding wheel (50) is inclined from one end close to the rotating shaft (24) to one end far away from the rotating shaft (24); grinding teeth (33) and second cleaning brushes (34) are arranged on the inner wall of the grinding cylinder (30) corresponding to the bottom end of the grinding wheel (50), the grinding teeth (33) and the second cleaning brushes (34) are distributed at intervals, and the grinding teeth (33) and the second cleaning brushes (34) are uniformly distributed around the central axis of the grinding wheel (50).

6. The milling apparatus as claimed in claim 1, wherein: the mesh diameter of the first screening plate (70) is larger than that of the second screening plate (80).