A guide grinding mechanism for wheat mill

Abstract

The present invention relates to the technical field of wheat flour mills, and discloses a guide grinding mechanism for a wheat flour mill, comprising a ring roller body, a first rotating shaft that rotates with the ring roller, a first rotating shaft installed in the center of the upper and lower ends of the ring roller body, respectively, the ring roller also includes a sliding groove horizontally arranged on the side wall of the ring roller body, and a sliding plate horizontally slidably installed inside the sliding groove. The scheme has multiple layers of ring rollers, and wheat is rolled into powder in the rolling groove, and the powder is fine and efficient. The scheme designs an upward-oriented wind sweeping collection method for wheat flour, and large particles of un-pulverized wheat will not be collected together with the wheat flour, which is convenient for secondary rolling into powder. The scheme can efficiently clean the layered wheat flour adhered and compacted on the rolling groove. The structure designed for cleaning the layered wheat flour in the scheme is simple, without protruding parts that have a scraping function, and will not cause damage to the rolling groove, and the parts are not easily damaged.

Description

Technical Field

[0001] The invention relates to the technical field of wheat flour mills, and in particular to a guide grinding mechanism for a wheat flour mill. Background Art

[0002] A wheat mill is a device that can process wheat or other granular crops into powder. After processing wheat into wheat flour, the taste can be improved and the types of food that can be processed can also be increased.

[0003] Common grinding mills on the market include ordinary roller mills, three-roller grinders, suspended roller mills, vertical roller mills, and ring roller mills. Among them, the ring roller mill has the advantages of high grinding efficiency and fine powder, but there are technical problems: after a long period of grinding, the wheat flour will slowly accumulate on the inner wall of the roller trough, and the accumulated wheat flour will form a layer of powder cake attached to the inner wall of the roller trough after repeated rolling of the ring roller. This will not only cause incomplete cleaning after the wheat flour processing is completed, but also cause the movement trajectory of the ring roller in the powder cake area to deviate toward the direction of the shaft, which will not only accelerate the wear of the shaft, but also cause eccentric vibration of the entire equipment, increase the probability of damage to other components, and increase maintenance costs.

[0004] The Chinese utility model patent with announcement number CN207119422U: Grinding roller for ring roller mill, discloses a technical solution that at least three zirconia sleeve rings are tightly mounted on the outer wall of a steel roller body in sequence in the axial direction, the end faces of adjacent zirconia sleeve rings are tightly spliced, and the outer wall forms a cylindrical grinding working surface, which can improve the wear resistance of the grinding roller;

[0005] The Chinese utility model patent with the announcement number CN212943438U: A feeding device used in a suspended roller ring roller mill, which discloses a mill body, the mill body includes a mill shell, a drive motor, a plum blossom frame, four grinding roller shafts, four grinding rollers, a grinding ring and four scrapers, the side end of the mill shell is connected with a feeding pipeline, the drive motor is fixedly installed at the bottom end of the mill shell, the output shaft of the drive motor is connected with a driving shaft, the plum blossom frame is fixedly connected with the upper end of the driving shaft, the four grinding roller shafts are distributed on the plum blossom frame in a rectangular array, the grinding rollers are rotatably sleeved on the grinding roller shafts, the grinding rings are fixedly installed on the inner wall of the bottom of the mill shell, and the grinding rings are located below the plum blossom frame, the four grinding rollers are meshed with the inner wall of the grinding ring, and the scrapers are fixedly connected with the bottom ends of the grinding rollers; including a feeding mechanism for feeding materials into the mill body, which can realize a technical solution of stable, uniform, quantitative and efficient automatic feeding into the mill body;

[0006] The Chinese utility model patent with announcement number CN207119421U: Grinding ring for roller mill, discloses a technical solution in which the inner wall of a steel ring body is provided with an embedding groove, a plurality of zirconia wall bricks are closely arranged side by side in the embedding groove, the zirconia wall bricks are closely spliced ​​adjacent to each other, and a grinding working surface with a cylindrical inner surface is formed along the inner wall of the steel ring body, which can improve the wear resistance of the grinding ring.

[0007] The technical solutions of the above patents are not disclosed, and a technical solution capable of cleaning the compacted wheat flour accumulated on the roller trough is not disclosed, so the art is in urgent need of a wheat mill guide grinding mechanism to solve the above problem. Summary of the invention

[0008] The purpose of the present invention is to provide a guide grinding mechanism for a wheat flour mill to solve the technical problem that the prior art cannot clean the wheat flour accumulated and compacted on the roller trough.

[0009] In order to achieve the above object, the present invention provides the following technical solutions:

[0010] The guide grinding mechanism of the wheat mill comprises a ring roller bearing component, on which a ring roller is mounted, and the ring roller can grind the wheat into powder; the ring roller bearing component comprises a plurality of first mounting plates which are parallel to each other and fixed to each other, and there is a mounting gap between adjacent first mounting plates, and a plurality of mounting holes are formed in a circular array on both upper and lower surfaces of the first mounting plate;

[0011] In the vertical direction, two mounting holes with openings facing each other are provided with a ring roller for rotating together;

[0012] A transmission rod is fixedly connected through the center of the ring roller bearing component, a side wall of the transmission rod is fixedly connected to the first mounting plate, and a motor is transmission-connected to the top end of the transmission rod;

[0013] The edge of the ring roller bearing component is covered with a plurality of rolling rings, and a rolling groove is arranged on the inner side wall of the rolling ring. In the vertical cross-sectional view, the curvature of the rolling groove is the same as the curvature of the edge of the ring roller, so that the rolling groove and the ring roller can be completely close to each other, and the motor drives the ring roller bearing component to rotate, thereby causing the first mounting plate to roll with the rolling groove as a track, and the wheat falling into the rolling groove can be rolled into powder;

[0014] The ring roller comprises a ring roller body, a first rotating shaft that rotates with the ring roller, a first rotating shaft is respectively installed at the center of the upper and lower ends of the ring roller body, the ring roller further comprises at least two sliding grooves, the sliding grooves are vertically arranged on the side wall of the ring roller body, all the sliding grooves are arranged on the side wall of the ring roller body in an annular array with the axis of the first rotating shaft as the axis, and the ring roller further comprises a sliding plate that is horizontally slidably installed inside the sliding groove, and the sliding plate can slide toward the opening direction of the sliding groove under the centrifugal force;

[0015] A limiting slot is respectively provided on the two side walls of the sliding slot, and a limiting slider is fixedly connected to the side wall of the sliding plate close to the limiting slot, and the limiting slider can slide horizontally inside the limiting slot; when the limiting slider slides to the end of the limiting slot away from the axis of the first rotating shaft, the elastic member is completely compressed and elastically deformed, and the surface of the sliding plate on the side away from the first rotating shaft coincides with the outer surface of the ring roller body, and at this time, there is no concave mark on the surface of the ring roller body.

[0016] By adopting the above technical scheme, when wheat flour is compacted by the roller and adheres to the wall of the rolling groove to form layers, the motor power is first reduced to reduce the centrifugal force on the sliding plate; since the sliding plate is in a sliding state, the ring roller body exerts a large pressure on the compacted wheat flour, and when the sliding plate rotates with the ring roller body and contacts the wheat flour, it is easy to slide and retract into the sliding groove due to the reaction force. Therefore, when rolling the wheat or layered wheat flour, the sliding plate can be regarded as non-existent and cannot produce an effective force on the wheat or layered wheat flour. When the edge line at the opening of the sliding groove rolls over the layered wheat flour, it can shear the surface of the layered wheat flour, leaving vertical indentations on the surface of the layered wheat flour, effectively destroying the integrity of the surface of the layered wheat flour. The opening edge line of the sliding groove can leave indentations on the surface of the layered wheat flour at a high frequency and continuously, and the layered wheat flour is quickly destroyed and decomposed, thereby realizing the function of efficiently removing the layered wheat flour. In the above process, the sliding plate only plays a role in preventing the wheat flour from clogging the sliding groove.

[0017] As a supplementary preferred scheme of the above scheme, in the process of cleaning the layered wheat flour, the motor in the intermittently controlled operation process is stopped or the speed is suddenly reduced, and the ring roller bearing component follows the sudden stop or speed reduction. In this process, the ring roller is affected by inertia, and the rotational force around the first rotating shaft has a slow decay process. At this time, the surface of the ring roller body and the surface of the layered wheat flour no longer maintain continuous static friction. Instead, the surface of the ring roller body uses the sliding groove to quickly scrape and destroy the surface of the layered wheat flour. The use of this supplementary preferred scheme can further improve the cleaning efficiency of the layered wheat flour and improve the cleaning effect.

[0018] As a preferred solution, an elastic member is fixedly installed at one end of the limit slider away from the axis of the first rotating shaft, and the end of the elastic member away from the limit slider is fixedly connected to the inner wall of the limit sliding groove; when the elastic member is in a non-deformed state, the limit slider is located inside the limit sliding groove near one end of the axis of the first rotating shaft, and the sliding plate retracts from the outer surface of the ring roller body into the sliding groove; the maximum elastic potential energy restoring force of the elastic member is less than the centrifugal force exerted on the sliding plate when the grinding mechanism is in normal operation; when the grinding mechanism is in normal operation, the sliding plate will be simultaneously subjected to the centrifugal force generated by the rotation of the ring roller bearing component with the transmission rod as the axis, and the centrifugal force generated by the rotation of the ring roller with the first rotating shaft as the axis;

[0019] By adopting the above technical scheme, when the grinding mechanism operates normally, the sliding plate can be subjected to sufficient centrifugal force, the elastic part is compressed and deformed, and can roll the wheat into powder together with the outer surface of the ring roller body. When it is necessary to remove the layered wheat flour, the motor power is reduced, the centrifugal force on the sliding plate is reduced, the centrifugal force cannot overcome the deformation recovery force of the elastic part, and the sliding plate retracts from the outer surface of the ring roller body into the sliding groove, so that the opening edge of the sliding groove can be used as a shear line to remove the layered wheat flour.

[0020] As a preferred solution, a rolling auxiliary component is installed inside the ring roller body, and the rolling auxiliary component includes an inner roller groove opened in the center of the ring roller body, and a cylindrical groove is opened at the upper and lower ends of the inner roller groove respectively, and the cylindrical groove is coaxial with the first rotating shaft, and an inner ring roller is installed inside the inner roller groove, and a second rotating shaft is fixedly connected to the center of the upper and lower ends of the inner ring roller respectively; the shape of the side wall of the inner ring roller is the same as the shape of the side wall of the inner roller groove; when the second rotating shaft is coaxial with the cylindrical groove, the distance L2 between the side wall of the second rotating shaft and the side wall of the cylindrical groove = the maximum distance L1 between the side wall of the inner ring roller and the side wall of the inner roller groove;

[0021] By adopting the above technical scheme, the inner ring roller can slide horizontally in a circle inside the inner roller groove. The power for sliding is the rotational centrifugal force of the ring roller bearing component. When the grinding mechanism is operating, the inner ring roller can always be kept in the inner roller groove away from the end of the transmission rod due to the centrifugal force. The inner ring roller with a centrifugal tendency can exert the centrifugal force on the sliding plate, thereby increasing the rolling pressure of the sliding plate on the wheat and preventing the sliding plate from retracting into the sliding groove, resulting in poor rolling effect of the sliding plate on the wheat.

[0022] As a preferred solution, the outer side of the rolling ring is covered and fixedly connected with a fixed ring, the bottom end of the fixed ring is sealed and fixedly connected with a circular supporting plate, a gap space for temporarily storing wheat flour is provided between the circular supporting plate and the first mounting plate at the bottom, a transmission rod supporting component is fixedly connected with the center of the top surface of the circular supporting plate, the transmission rod supporting component is rotatably connected with the bottom end of the transmission rod by means of a bearing, and the transmission rod supporting component has a supporting function for the transmission rod, and the circular supporting plate is fixedly connected with a mounting frame which supports the entire grinding mechanism.

[0023] As a preferred solution, the top of the fixed ring is sealed and fixedly connected to an inner sleeve, the outer wall of the inner sleeve is fixedly connected to a feed pipe, one end of the feed pipe is sealed and connected to the inner space of the inner sleeve, the height of the end of the feed pipe away from the inner sleeve is higher than the height of the end of the feed pipe close to the inner sleeve, wheat can be added to the inner sleeve through the feed pipe, and then the wheat flows downward from the inner sleeve to the area where the roller groove is located to be roller-pressed into powder. The motor housing is fixedly connected to the inner wall of the inner sleeve through a motor mounting frame, and the motor mounting frame does not block the falling wheat.

[0024] As a preferred solution, the circumferential area of ​​the upper surface of the circular support plate is larger than the circumferential area of ​​the outer wall of the fixed ring, an outer sleeve is fixedly connected to the edge of the upper surface of the circular support plate, the top of the outer sleeve is higher than the top of the inner sleeve, the top of the outer sleeve is sealed and connected to a powder discharge pipe, and the end of the powder discharge pipe away from the outer sleeve is connected to an external wheat flour negative pressure collection device; an air inlet is horizontally opened at the bottom end of the outer sleeve, and the air inlet is connected to an external air supply device by an external pipe fitting;

[0025] By adopting the above technical scheme, after the wheat is rolled into powder and becomes wheat flour, it falls into the gap space where the wheat flour is temporarily stored. The external air supply equipment blows the wheat flour from the air inlet, and the wheat flour tends to move upward. At the same time, the external wheat flour negative pressure collection equipment extracts and collects the wheat flour floating inside the outer sleeve by negative pressure.

[0026] As a preferred solution, there are at least three air inlets arranged in a circular array, which can more evenly blow the wheat flour in the gap space where the wheat flour is temporarily stored to avoid residue.

[0027] As a preferred solution, the elastic member is a spring.

[0028] As a preferred solution, the elastic member is a metal spring.

[0029] As a preferred solution, a second mounting plate is fixedly connected to the upper surface of the first mounting plate at the top, and the second mounting plate serves to reinforce the overall structural strength of the ring roller bearing component. The wheat is scattered onto the second mounting plate and then, under the action of centrifugal force, the wheat falls through the inside of the rolling groove and is pressed into powder by the ring roller. The multi-layer rolling groove cooperates with the rolling action of the ring roller to efficiently press the wheat into fine powder. Beneficial Effects

[0030] 1. This scheme has multiple layers of ring rollers, which roll the wheat into powder in the rolling groove, and the powder is fine and efficient.

[0031] 2. This scheme designs an upward-oriented wind-blown collection method for wheat flour, so that large grains of un-milled wheat will not be collected together with the wheat flour, making it easier to carry out secondary roller milling.

[0032] 3. This solution can efficiently clean the layered wheat flour adhered and compacted on the roller trough.

[0033] 4. The structure designed for cleaning the layered wheat flour in this solution is simple, without protruding parts that have a scraping function, and will not cause damage to the roller trough, and the parts are not easily damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0035] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0036] Figure 2 It is a partial dissection diagram of the overall structure of the present invention;

[0037] Figure 3 This is a disassembled diagram of the overall structure of the present invention;

[0038] Figure 4 for Figure 3 A magnified image of the middle A area;

[0039] Figure 5 This is a schematic diagram of the ring roller structure of the present invention;

[0040] Figure 6 This is a dissected diagram of the ring roller in the present invention;

[0041] Figure 7 This is a front view of the ring roller in the present invention.

[0042] Description of reference numerals:

[0043] 101. first mounting plate; 102. mounting hole; 103. ring roller; 104. motor; 105. transmission rod; 106. roller pressing ring; 107. roller pressing groove; 108. second mounting plate; 201. ring roller body; 202. first rotating shaft; 203. sliding groove; 204. sliding plate; 205. limiting sliding groove; 206. limiting sliding block; 207. elastic member; 301. inner roller groove; 302. cylindrical groove; 303. inner ring roller; 304. second rotating shaft; 401. fixed ring; 402. circular supporting plate; 403. transmission rod supporting part; 404. mounting frame; 501. outer sleeve; 502. powder discharge pipe; 503. air inlet; 601. inner sleeve; 602. feed pipe. DETAILED DESCRIPTION

[0044] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0045] Embodiment 1, as Figure 1-Figure 7As shown, a guide grinding mechanism of a wheat mill comprises a ring roller bearing component, on which a ring roller 103 is mounted, and the ring roller 103 can grind wheat into powder; the ring roller bearing component comprises a plurality of first mounting plates 101 which are parallel to each other and fixed to each other, and there is a mounting gap between adjacent first mounting plates 101, and the upper and lower surfaces of the first mounting plates 101 are both provided with 8 mounting holes 102 in a circular array;

[0046] In the vertical direction, two mounting holes 102 with openings facing each other are provided with a ring roller 103 for rotating together;

[0047] A transmission rod 105 is fixedly connected through the center of the ring roller bearing component, and a motor 104 is connected to the top of the transmission rod 105;

[0048] The edge of the ring roller bearing component is covered with a plurality of rolling rings 106, and a rolling groove 107 is arranged on the inner wall of the rolling ring 106. In the vertical cross-sectional view, the curvature of the rolling groove 107 is the same as the curvature of the edge of the ring roller 103, so that the rolling groove 107 and the ring roller 103 can be completely close to each other. The motor 104 drives the ring roller bearing component to rotate, thereby causing the first mounting plate 101 to roll with the rolling groove 107 as a track, and the wheat falling into the rolling groove 107 can be rolled into powder;

[0049] The ring roller 103 includes a ring roller body 201, a first rotating shaft 202 that rotates with the ring roller 103, and a first rotating shaft 202 is respectively installed at the center of the upper and lower ends of the ring roller body 201. The ring roller 103 also includes 8 sliding grooves 203, and the sliding grooves 203 are vertically opened on the side wall of the ring roller body 201. All the sliding grooves 203 are opened on the side wall of the ring roller body 201 in a ring array with the axis of the first rotating shaft 202 as the axis. The ring roller 103 also includes a sliding plate 204 that is horizontally slidably installed inside the sliding groove 203, and the sliding plate 204 can slide toward the opening direction of the sliding groove 203 under the centrifugal force;

[0050] A limiting slide groove 205 is respectively provided on the two side walls of the sliding groove 203, and a limiting slider 206 is fixedly connected to the side wall of the sliding plate 204 close to the limiting slide groove 205, and the limiting slider 206 can slide horizontally inside the limiting slide groove 205; when the limiting slider 206 slides to the end of the limiting slide groove 205 away from the axis of the first rotating shaft 202, the surface of the side of the sliding plate 204 away from the first rotating shaft 202 coincides with the outer surface of the ring roller body 201, and at this time, there is no concave mark on the surface of the ring roller body 201;

[0051] When the wheat flour is compacted by the roller and adheres to the wall of the roller groove 107 to form layers, the power of the motor 104 is first reduced to reduce the centrifugal force on the sliding plate 204; since the sliding plate 204 is in a sliding state, the ring roller body 201 exerts a large pressure on the compacted wheat flour. When the sliding plate 204 rotates with the ring roller body 201 and contacts the wheat flour, it is easy to slide and retract into the sliding groove 203 due to the reaction force. Therefore, when rolling the wheat or the layered wheat flour, the sliding plate 204 can be regarded as non-existent and cannot produce the wheat or the layered wheat flour. The effective force is generated. When the edge of the opening of the sliding groove 203 rolls over the layered wheat flour, it can shear the surface of the layered wheat flour, leaving vertical indentations on the surface of the layered wheat flour, effectively destroying the integrity of the surface of the layered wheat flour. The opening edge of the sliding groove 203 can leave indentations on the surface of the layered wheat flour at a high frequency and continuously, and the layered wheat flour is quickly destroyed and decomposed, thereby realizing the function of efficiently removing the layered wheat flour. In the above process, the sliding plate 204 only plays a role in preventing the wheat flour from clogging the sliding groove 203.

[0052] In the process of cleaning the layered wheat flour, the motor 104 is intermittently controlled to stop or reduce its speed, and the ring roller bearing component follows the stop or speed reduction. In this process, the ring roller 103 is affected by inertia, and the rotational force around the first rotating shaft 202 slowly decays. At this time, the surface of the ring roller body 201 and the surface of the layered wheat flour no longer maintain continuous static friction. Instead, the surface of the ring roller body 201 uses the sliding groove 203 to quickly scrape and destroy the surface of the layered wheat flour. This supplementary preferred solution can further improve the cleaning efficiency of the layered wheat flour and improve the cleaning effect.

[0053] An elastic member 207 is fixedly installed at one end of the limiting slider 206 away from the axis of the first rotating shaft 202, and the end of the elastic member 207 away from the limiting slider 206 is fixedly connected to the inner wall of the limiting slide groove 205; when the elastic member 207 is in a non-deformed state, the limiting slider 206 is located inside the limiting slide groove 205 near one end of the axis of the first rotating shaft 202, and the sliding plate 204 retracts from the outer surface of the ring roller body 201 into the sliding groove 203; the maximum elastic potential energy restoring force of the elastic member 207 is less than the centrifugal force on the sliding plate 204 when the grinding mechanism is in normal operation; when the grinding mechanism is in normal operation, the sliding plate 204 will be simultaneously subjected to the centrifugal force generated by the rotation of the ring roller bearing component with the transmission rod 105 as the axis, and the centrifugal force generated by the rotation of the ring roller 103 with the first rotating shaft 202 as the axis;

[0054] When the grinding mechanism operates normally, the sliding plate 204 can be subjected to sufficient centrifugal force, and the elastic member 207 is compressed and deformed, and can roll the wheat into powder together with the outer surface of the ring roller body 201. When it is necessary to remove the layered wheat flour, the power of the motor 104 is reduced, the centrifugal force on the sliding plate 204 is reduced, and the centrifugal force cannot overcome the deformation recovery force of the elastic member 207. The sliding plate 204 retracts from the outer surface of the ring roller body 201 into the sliding groove 203, so that the opening edge of the sliding groove 203 can be used as a shear line to remove the layered wheat flour.

[0055] An auxiliary rolling component is installed inside the ring roller body 201, and the auxiliary rolling component includes an inner roller groove 301 opened in the center of the inner roller body 201, and a cylindrical groove 302 is opened at the upper and lower ends of the inner roller groove 301 respectively, and the cylindrical groove 302 is coaxial with the first rotating shaft 202, and an inner ring roller 303 is installed inside the inner roller groove 301, and a second rotating shaft 304 is fixedly connected to the center of the upper and lower ends of the inner ring roller 303 respectively; the side wall shape of the inner ring roller 303 is the same as the side wall shape of the inner roller groove 301; when the second rotating shaft 304 is coaxial with the cylindrical groove 302, the distance L2 between the side wall of the second rotating shaft 304 and the side wall of the cylindrical groove 302 = the maximum distance L1 between the side wall of the inner ring roller 303 and the side wall of the inner roller groove 301;

[0056] The inner ring roller 303 can slide in a horizontal circle inside the inner roller groove 301. The power for sliding is the rotational centrifugal force of the ring roller bearing component. When the grinding mechanism is in operation, the inner ring roller 303 can be kept in the inner roller groove 301 away from the end of the transmission rod 105 due to the centrifugal force. The inner ring roller 303 with a centrifugal tendency can exert the centrifugal force on the sliding plate 204, thereby increasing the rolling pressure of the sliding plate 204 on the wheat and avoiding the phenomenon that the sliding plate 204 retracts into the sliding groove 203, resulting in poor rolling effect of the sliding plate 204 on the wheat.

[0057] The outer side of the rolling ring 106 is covered and fixedly connected with a fixed ring 401, and the bottom end of the fixed ring 401 is sealed and fixedly connected with a circular supporting plate 402. There is a gap space for temporarily storing wheat flour between the circular supporting plate 402 and the first mounting plate 101 at the bottom. A transmission rod supporting component 403 is fixedly connected to the center of the top surface of the circular supporting plate 402. The transmission rod supporting component 403 is rotatably connected to the bottom end of the transmission rod 105 by means of a bearing, and the transmission rod supporting component 403 has a supporting function for the transmission rod 105. The circular supporting plate 402 is fixedly connected with a mounting frame 404 that supports the entire grinding mechanism.

[0058] The top of the fixed ring 401 is sealed and fixedly connected with the inner sleeve 601, and the outer wall of the inner sleeve 601 is fixedly connected with the feed pipe 602. One end of the feed pipe 602 is sealed and connected with the inner space of the inner sleeve 601. The height of the end of the feed pipe 602 away from the inner sleeve 601 is higher than the height of the end of the feed pipe 602 close to the inner sleeve 601. The feed pipe 602 can be used to add wheat into the inner sleeve 601, and then the wheat flows downward from the inner sleeve 601 to the area where the roller groove 107 is located to be rolled into powder. The housing of the motor 104 is fixedly connected to the inner wall of the inner sleeve 601 by a motor mounting frame, and the motor mounting frame does not block the falling wheat.

[0059] The circumferential area of ​​the upper surface of the circular support plate 402 is larger than the circumferential area of ​​the outer wall of the fixed ring 401. The outer sleeve 501 is fixedly connected to the edge of the upper surface of the circular support plate 402. The top of the outer sleeve 501 is higher than the top of the inner sleeve 601. The top of the outer sleeve 501 is sealed and connected to a powder discharge pipe 502. The end of the powder discharge pipe 502 away from the outer sleeve 501 is connected to an external wheat flour negative pressure collection device; an air inlet 503 is horizontally opened at the bottom of the outer sleeve 501, and the air inlet 503 is connected to an external air supply device through an external pipe fitting;

[0060] After the wheat is rolled into powder and becomes wheat flour, it falls into the gap space where the wheat flour is temporarily stored. The external air supply equipment blows the wheat flour from the air inlet 503, and the wheat flour tends to move upward. At the same time, the external wheat flour negative pressure collection equipment extracts and collects the wheat flour floating inside the outer sleeve 501 under negative pressure.

[0061] There are eight air inlets 503 arranged in a circular array, which can blow the wheat flour in the gap space where the wheat flour is temporarily stored more evenly to avoid residue.

[0062] The elastic member 207 is a spring.

[0063] A second mounting plate 108 is fixedly connected to the upper surface of the first mounting plate 101 at the upper end. The second mounting plate 108 serves to reinforce the overall structural strength of the ring roller bearing component. The wheat is scattered onto the second mounting plate 108 and then, under the action of centrifugal force, the wheat falls through the rolling groove 107 and is rolled into powder by the ring roller 103. The multi-layer rolling groove 107 cooperates with the rolling action of the ring roller 103 to efficiently roll the wheat into fine powder.

[0064] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A guide grinding mechanism for a wheat flour mill, comprising a ring roller bearing component, on which a ring roller (103) is mounted, and the ring roller (103) is capable of grinding wheat into flour; characterized in that: The ring roller bearing component comprises a plurality of mutually parallel and mutually fixed first mounting plates (101), with mounting gaps between adjacent first mounting plates (101), and a plurality of mounting holes (102) are provided in a circular array on both the upper and lower surfaces of the first mounting plates (101); In the vertical direction, two mounting holes (102) with openings facing each other are provided with a ring roller (103) for joint rotation; A transmission rod (105) is fixedly connected through the center of the ring roller bearing component, and a motor (104) is transmission-connected to the top end of the transmission rod (105); The edge of the ring roller bearing component is covered with a plurality of rolling rings (106), and a rolling groove (107) is provided on the inner side wall of the rolling ring (106). In the vertical cross-sectional view, the curvature of the rolling groove (107) is the same as the curvature of the edge of the ring roller (103), so that the rolling groove (107) and the ring roller (103) can be completely in close contact. The motor (104) drives the ring roller bearing component to rotate, thereby causing the first mounting plate (101) to roll with the rolling groove (107) as a track, so that the wheat that falls into the rolling groove (107) can be rolled into powder; The ring roller (103) comprises a ring roller body (201), a first rotating shaft (202) rotatably matched with the ring roller (103), a first rotating shaft (202) being respectively installed at the center of the upper and lower ends of the ring roller body (201), the ring roller (103) further comprises at least two sliding grooves (203), the sliding grooves (203) being vertically arranged on the side wall of the ring roller body (201), all the sliding grooves (203) being arranged on the side wall of the ring roller body (201) in a ring array with the axis of the first rotating shaft (202) as the axis, and the ring roller (103) further comprises a sliding plate (204) being horizontally slidably installed inside the sliding groove (203), the sliding plate (204) being able to slide towards the opening direction of the sliding groove (203) under the centrifugal force; A limiting sliding groove (205) is respectively provided on the two side walls of the sliding groove (203); a limiting sliding block (206) is fixedly connected to the side wall of the sliding plate (204) close to the limiting sliding groove (205); the limiting sliding block (206) can slide horizontally inside the limiting sliding groove (205); when the limiting sliding block (206) slides to the end of the limiting sliding groove (205) away from the axis of the first rotating shaft (202), the surface of the side of the sliding plate (204) away from the first rotating shaft (202) coincides with the outer surface of the ring roller body (201), and at this time, there is no concave mark on the surface of the ring roller body (201).

2. A wheat flour mill guide grinding mechanism according to claim 1, characterized in that: An elastic member (207) is fixedly mounted on one end of the limiting slider (206) away from the axis of the first rotating shaft (202), and the end of the elastic member (207) away from the limiting slider (206) is fixedly connected to the inner wall of the limiting slide groove (205); when the elastic member (207) is in a non-deformed state, the limiting slider (206) is located inside the limiting slide groove (205) close to one end of the axis of the first rotating shaft (202), and the sliding plate (204) retracts from the outer surface of the ring roller body (201) into the sliding groove (203).

3. A wheat flour mill guide grinding mechanism according to claim 2, characterized in that: A rolling auxiliary component is installed inside the ring roller body (201), and the rolling auxiliary component comprises an inner roller groove (301) opened in the center of the ring roller body (201), and a cylindrical groove (302) is opened at the upper and lower ends of the inner roller groove (301), and the cylindrical groove (302) is coaxial with the first rotating shaft (202). An inner ring roller (303) is installed inside the inner roller groove (301), and a second rotating shaft (304) is fixedly connected to the center of the upper and lower ends of the inner ring roller (303); the side wall shape of the inner ring roller (303) is the same as the side wall shape of the inner roller groove (301); when the second rotating shaft (304) and the cylindrical groove (302) are coaxial, the distance L2 between the side wall of the second rotating shaft (304) and the side wall of the cylindrical groove (302) is equal to the maximum distance L1 between the side wall of the inner ring roller (303) and the side wall of the inner roller groove (301).

4. A wheat flour mill guide grinding mechanism according to claim 1, characterized in that: The outer side of the rolling ring (106) is covered and fixedly connected with a fixed ring (401); the bottom end of the fixed ring (401) is sealed and fixedly connected with a circular support plate (402); a gap space for temporarily storing wheat flour is provided between the circular support plate (402) and the first mounting plate (101) at the bottom; a transmission rod supporting component (403) is fixedly connected to the center of the top surface of the circular support plate (402); the transmission rod supporting component (403) is rotatably connected to the bottom end of the transmission rod (105) by means of a bearing; the transmission rod supporting component (403) has a supporting function for the transmission rod (105); and the circular support plate (402) is fixedly connected with a mounting frame (404) that supports the entire grinding mechanism.

5. A wheat flour mill guide grinding mechanism according to claim 4, characterized in that: The top of the fixed ring (401) is sealed and fixedly connected to an inner sleeve (601), and the outer wall of the inner sleeve (601) is fixedly connected to a feed pipe (602). One end of the feed pipe (602) is sealed and connected to the internal space of the inner sleeve (601). The height of the end of the feed pipe (602) away from the inner sleeve (601) is higher than the height of the end of the feed pipe (602) close to the inner sleeve (601). The housing of the motor (104) is fixedly connected to the inner wall of the inner sleeve (601) by a motor mounting frame, and the motor mounting frame does not block the falling wheat.

6. A wheat flour mill guide grinding mechanism according to claim 5, characterized in that: The circumferential area of ​​the upper surface of the circular support plate (402) is larger than the circumferential area of ​​the outer wall of the fixed ring (401); an outer sleeve (501) is fixedly connected to the edge of the upper surface of the circular support plate (402); the top of the outer sleeve (501) is higher than the top of the inner sleeve (601); the top of the outer sleeve (501) is sealed and connected to a powder discharge pipe (502); the end of the powder discharge pipe (502) away from the outer sleeve (501) is connected to an external wheat flour negative pressure collection device; an air inlet (503) is horizontally opened at the bottom end of the outer sleeve (501); the air inlet (503) is connected to an external air supply device by means of an external pipe fitting.

7. A wheat flour mill guide grinding mechanism according to claim 6, characterized in that: There are at least three air inlets (503), which are arranged in a circular array.

8. A wheat flour mill guide grinding mechanism according to claim 2, characterized in that: The elastic member (207) is a spring.

9. A wheat flour mill guide grinding mechanism according to claim 2, characterized in that: The elastic member (207) is a metal spring.

10. The guide grinding mechanism of a wheat flour mill according to claim 1, characterized in that: A second mounting plate (108) is fixedly connected to the upper surface of the first mounting plate (101) at the uppermost end, and the second mounting plate (108) serves to reinforce the overall structural strength of the ring roller bearing component.

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