A flour milling device for flour production

Abstract

The present invention relates to the field of milling technology, and specifically to a milling device for flour production, comprising a milling box, wherein a milling mechanism is arranged in the milling box, wherein the milling mechanism comprises a rotating shaft, and the rotating shaft is transmission-connected with a first driving mechanism, wherein a first rolling assembly and a second rolling assembly are arranged on the rotating shaft, wherein the first rolling assembly comprises a plurality of first cams and a first connecting member, wherein the first cam is sleeved on the rotating shaft and matches with the clearance of the rotating shaft, and the first connecting member connects the plurality of first cams; wherein the second rolling assembly comprises a second cam and a second connecting member, wherein the second cam is sleeved on the rotating shaft and matches with the clearance of the rotating shaft, and the second cam is located between two adjacent first cams, and the second connecting member connects the plurality of second cams; wherein the first driving mechanism drives the rotating shaft to rotate, thereby driving the first rolling assembly and the second rolling assembly to rotate synchronously, so that the first rolling assembly and the second rolling assembly push and roll the material to the lower side of the rotating shaft.

Description

Technical Field

[0001] The invention relates to the technical field of flour milling, in particular to a flour milling device for flour production. Background Art

[0002] During the production and processing of flour, the raw materials need to be ground, usually using a roller mill. When the existing roller mill is in use, due to the large diameter of the grinding roller, when the round grinding roller rolls on the loose block materials, the larger material blocks on the upper layer will be pushed forward by the grinding roller, and then leave the grinding area. The grinding roller can only crush, compact and grind the smaller materials on the lower layer, so the grinding efficiency is low.

[0003] The patent document with the announcement number CN107282210B discloses a vertical mill with a rolling grinding roller that swings in both directions. Arc tracks are set on both end surfaces of the grinding disc, and a grinding shaft with a grinding roller and a grinding motor is placed in the arc track. The grinding roller swings back and forth along the arc track to grind the material, thereby realizing reciprocating grinding of the material in the arc grinding disc. The grinding roller is pulverized by sliding in the arc track, but because the grinding roller is round, it can still push large pieces of material to move along the arc track, and the pulverization efficiency is still not high. Summary of the invention

[0004] Based on this, it is necessary to provide a flour milling device for flour production to address the problem that the current mill has low efficiency in crushing bulk materials.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A flour milling device for flour production comprises a flour milling box, a flour milling mechanism is arranged in the flour milling box, the flour milling mechanism comprises a bottom plate, a rotating shaft is rotatably arranged on the bottom plate, the rotating shaft extends in the front-rear direction and moves in the left-right direction, the rotating shaft is transmission-connected with a first driving mechanism, a first rolling assembly and a second rolling assembly are arranged on the rotating shaft, the first rolling assembly comprises a first connecting piece and a plurality of first cams, the first cam is sleeved on the rotating shaft and cooperates with the rotating shaft clearance, the first connecting piece connects the plurality of first cams; the second rolling assembly comprises a second connecting piece and a plurality of second cams, the second cam is sleeved on the rotating shaft and cooperates with the rotating shaft clearance, the second cam is located between two adjacent first cams, and the second connecting piece connects the plurality of second cams; the first driving mechanism drives the rotating shaft to rotate, which can drive the first rolling assembly and the second rolling assembly to rotate synchronously, so that the first rolling assembly and the second rolling assembly push and hit the material to the bottom of the rotating shaft.

[0007] Furthermore, a first stopper is provided on the inner circumferential surface of the first cam, a second stopper is provided on the inner circumferential surface of the second cam, and four driving blocks are provided on the outer circumferential surface of the rotating shaft. The two driving blocks are divided into a group, the first stopper is located between the two driving blocks in one group, and the second stopper is located between the two driving blocks in the other group. The first stopper and the second stopper are both matched with the circumferential stopper of the driving blocks.

[0008] Furthermore, a first pushing mechanism and a second pushing mechanism are provided inside the rotating shaft; the first pushing mechanism and the second pushing mechanism are respectively located at two ends of the rotating shaft, the first pushing mechanism is used to push the first cam to tilt the first rolling assembly relative to the rotating shaft, and the second pushing mechanism is used to push the second cam to make the second rolling assembly tilt in the same direction as the first rolling assembly.

[0009] Furthermore, the first pushing mechanism includes a cylinder, the output end of the cylinder is connected to a sliding block, and the front and rear sides of the sliding block are respectively provided with pushing columns, and the pushing columns can extend from the rotating shaft, one pushing column is located above the rotating shaft, and the other pushing column is located below the rotating shaft.

[0010] Furthermore, in the circumferential direction of the rotating shaft, the two thrust columns are respectively located between the two groups of driving blocks.

[0011] Furthermore, the structure of the second pushing mechanism is the same as that of the first pushing mechanism, and the first pushing mechanism and the second pushing mechanism are oriented in opposite directions.

[0012] Furthermore, there are two rotating shafts, two support rod groups are provided on the base plate, and each support rod group is slidably provided with a telescopic bracket. The rotating shaft is rotatably set on its respective telescopic bracket. The first driving mechanism is transmission-connected to a first pulley, and the ends of the two rotating shafts are transmission-connected to second pulleys. The two second pulleys are transmission-connected to the first pulley through their respective transmission belts. Each support rod group is also provided with a tensioning wheel, and the tensioning wheel is used to tension the transmission belt.

[0013] Furthermore, the bottom plate is an arc-shaped plate, a base is provided at the bottom of the grinding box, an arc-shaped track is provided on the base, a second driving mechanism is provided on the base, and the second driving mechanism drives the arc-shaped plate to slide left and right along the arc-shaped track.

[0014] Furthermore, an arc-shaped cavity is provided inside the grinding box, and an arc-shaped groove is provided on the side wall of the grinding box. The end of the rotating shaft slides left and right along the arc-shaped groove, so that the first rolling assembly and the second rolling assembly slide along the arc-shaped cavity.

[0015] Furthermore, a feed port is provided on the grinding box, and a discharge port is provided at the bottom of the arc-shaped cavity, and the feed port corresponds to the discharge port up and down.

[0016] The beneficial effects of the present invention are:

[0017] The grinding device for flour production provided by the present invention has a first rolling assembly and a second rolling assembly provided on a rotating shaft with a clearance fit, the first rolling assembly is composed of a plurality of first cams connected by a first connecting piece, and the second rolling assembly is composed of a plurality of second cams connected by a second connecting piece, so that during the rotation of the rotating shaft, the first rolling assembly and the second rolling assembly can be driven to rotate, and since the cam's own structure has an inclined surface, the first rolling assembly and the second rolling assembly can push large pieces of material to the bottom of the rotating shaft and hit the material, thereby improving the grinding effect of the large pieces of material.

[0018] Secondly, during the rotation of the shaft, the driving block on the shaft will intermittently hit the first stop block of the first rolling component and the second stop block of the second rolling component, so that the first rolling component and the second rolling component will hit the material again, thereby improving the crushing effect of the material and causing the material attached to the first rolling component and the second rolling component to fall off; at the same time, since the material will generate a reverse force on the first rolling component and the second rolling component, the gap position between the first rolling component and the second rolling component and the shaft will change, thereby driving the first rolling component and the second rolling component to swing left and right and back and forth along the shaft, thereby expanding the crushing area and further improving the grinding effect.

[0019] Third, the first pushing mechanism and the second pushing mechanism can control the synchronous tilting of the first rolling assembly and the second rolling assembly. When there is more material in the front, the first rolling assembly and the second rolling assembly are controlled to tilt backwards, so that the material can be transported to the rear; when there is more material in the rear, the first rolling assembly and the second rolling assembly are controlled to tilt forwards, so that the material can be transported to the front, thereby achieving uniform grinding and improving the grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of a flour milling device for flour production provided by an embodiment of the present invention;

[0021] Figure 2 A front view of a flour milling device for flour production provided by one embodiment of the present invention;

[0022] Figure 3 A side view of a flour milling device for flour production provided by one embodiment of the present invention;

[0023] Figure 4 for Figure 3 Middle AA section view;

[0024] Figure 5 A schematic diagram of a portion of the structure of a flour milling device for flour production provided by an embodiment of the present invention;

[0025] Figure 6 for Figure 5 Side view of

[0026] Figure 7 for Figure 6 Middle BB section view;

[0027] Figure 8 for Figure 6 Middle CC section view;

[0028] Fig. 9 A schematic structural diagram of a rotating shaft, a first rolling assembly and a second rolling assembly in a flour milling device for flour production provided in one embodiment of the present invention;

[0029] Fig.10 for Fig. 9 Side view of

[0030] Fig.11 for Fig.10 Middle DD section view;

[0031] Fig.12 for Fig.11 Enlarged image at the center X;

[0032] Fig.13 for Fig. 9 A top view of

[0033] Fig.14 for Fig.13 EE section view.

[0034] in:

[0035] 100, grinding box; 101, feeding port; 102, locking member; 103, supporting leg; 104, movable folding member; 105, second driving mechanism; 1051, gear; 106, first driving mechanism; 1061, first pulley; 107, arc cavity; 108, arc groove; 109, discharging port; 110, base; 111, bottom plate; 112, supporting rod group; 1121, telescopic bracket; 1122, second pulley; 112 3. Tensioning wheel; 113. Arc track; 114. Arc rack; 201. Rotating shaft; 2011. Driving block; 202. First rolling assembly; 2021. First connecting member; 2022. First cam; 2023. First stop block; 203. Second rolling assembly; 2031. Second connecting member; 2032. Second cam; 2033. Second stop block; 210. Cylinder; 211. Mounting groove; 212. Sliding block; 213. Push column. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0038] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] like Figures 1 to 14As shown, a flour milling device for flour production provided by an embodiment of the present invention comprises a flour milling box 100, wherein a flour milling mechanism is arranged in the flour milling box 100, wherein the flour milling mechanism comprises a bottom plate 111, wherein a rotating shaft 201 is rotatably arranged on the bottom plate 111, wherein the rotating shaft 201 extends in the front-rear direction and moves in the left-right direction, wherein the rotating shaft 201 is transmission-connected with a first driving mechanism 106, wherein a first rolling assembly 202 and a second rolling assembly 203 are arranged on the rotating shaft 201, wherein the first rolling assembly 202 comprises a first connecting member 2021 and a plurality of first cams 2022, wherein the first cams 2022 are sleeved on the rotating shaft 201 and are clearance-matched with ... The first connecting member 2021 connects the plurality of first cams 2022; the second rolling assembly 203 includes a second connecting member 2031 and a plurality of second cams 2032, the second cams 2032 are sleeved on the rotating shaft 201 and are loosely matched with the rotating shaft 201, and the second cam 2032 is located between two adjacent first cams 2022, and the second connecting member 2031 connects the plurality of second cams 2032; the first driving mechanism 106 drives the rotating shaft 201 to rotate, which can drive the first rolling assembly 202 and the second rolling assembly 203 to rotate synchronously, so that the first rolling assembly 202 and the second rolling assembly 203 push and roll the material to the bottom of the rotating shaft 201. In this embodiment, the first rolling assembly 202 and the second rolling assembly 203 are both integrally formed, and the angle between the two is 180 degrees. In other embodiments, the angle between the first rolling assembly 202 and the second rolling assembly 203 is 90 degrees, 120 degrees, etc.

[0040] In this embodiment, the first cam 2022 and the second cam 2032 are the same, and the first connecting member 2021 and the second connecting member 2031 are the same.

[0041] Furthermore, a first stopper 2023 is provided on the inner circumference of the first cam 2022, a second stopper 2033 is provided on the inner circumference of the second cam 2032, four drive blocks 2011 are provided on the outer circumference of the rotating shaft 201, two drive blocks 2011 are divided into a group, the first stopper 2023 is located between the two drive blocks 2011 of one group, the second stopper 2033 is located between the two drive blocks 2011 of the other group, and the first stopper 2023 and the second stopper 2033 are both matched with the circumferential stopper of the drive block 2011.

[0042] Furthermore, a first pushing mechanism and a second pushing mechanism are provided inside the rotating shaft 201; the first pushing mechanism and the second pushing mechanism are respectively located at both ends of the rotating shaft 201, the first pushing mechanism is used to push the first cam 2022 to tilt the first rolling assembly 202 relative to the rotating shaft 201, and the second pushing mechanism is used to push the second cam 2032 to make the second rolling assembly 203 and the first rolling assembly 202 tilt in the same direction. In this embodiment, the first pushing mechanism is located behind the rotating shaft 201, and the second pushing mechanism is located in front of the rotating shaft 201.

[0043] Furthermore, the first pushing mechanism includes a cylinder 210, the output end of the cylinder 210 is connected to a sliding block 212, and the front and rear sides of the sliding block 212 are respectively provided with pushing columns 213, and the pushing columns 213 can be extended from the rotating shaft 201, one of the pushing columns 213 is located above the rotating shaft 201, and the other pushing column 213 is located below the rotating shaft 201. Specifically, both ends of the rotating shaft 201 are respectively provided with mounting grooves 211 extending along the length direction of the rotating shaft 201, and the cylinder 210 and the sliding block 212 are arranged in the mounting grooves 211, and the sliding block 212 can slide along the mounting grooves 211. The cross section of the sliding block 212 is hexagonal, and the extension of the sliding block 212 can drive the pushing column 213 below to extend, and the retraction of the sliding block 212 can drive the pushing column 213 above to extend.

[0044] Furthermore, in the circumferential direction of the rotating shaft 201, the two push pins 213 are respectively located between the two groups of driving blocks 2011 to avoid interference of the push pins 213 with the driving blocks 2011 after being extended.

[0045] Furthermore, the structure of the second pushing mechanism is the same as that of the first pushing mechanism, and the first pushing mechanism and the second pushing mechanism are oriented in opposite directions.

[0046] Furthermore, the rotating shaft 201 is provided with two, the bottom plate 111 is provided with two support rod groups 112, each support rod group 112 is slidably provided with a telescopic bracket 1121, the rotating shaft 201 is rotatably provided on the respective telescopic bracket 1121, the first driving mechanism 106 is connected to the first pulley 1061 in transmission, the ends of the two rotating shafts 201 are connected to the second pulley 1122 in transmission, the two second pulleys 1122 are connected to the first pulley 1061 in transmission through their respective transmission belts, and each support rod group 112 is further provided with a tensioning wheel 1123, the tensioning wheel 1123 is used to tension the respective transmission belts. The first driving mechanism 106 is a first driving motor. In this embodiment, the angle between the two support rod groups 112 is 35 degrees, so that the two rotating shafts 201 have an overlapping area during rotation, and can repeatedly crush the material. A plurality of pressure sensing sheets are provided in the front and back of the rotating shaft 201, which can sense the pressure at each position.

[0047] Further, the bottom plate 111 is an arc-shaped plate, the bottom of the grinding box 100 is provided with a base 110, the base 110 is provided with supporting legs 103 around, the base 110 is provided with an arc-shaped track 113, the base 110 is provided with a second driving mechanism 105, and the second driving mechanism 105 drives the arc-shaped plate to slide left and right along the arc-shaped track 113. The second driving mechanism 105 is a second driving motor, and the output end of the second driving motor is provided with a gear 1051, and the bottom of the arc-shaped plate is provided with an arc-shaped rack 114, which is meshed with the gear 1051, and the gear 1051 is driven to rotate by the second driving motor, so as to drive the arc-shaped plate to slide left and right along the arc-shaped track 113.

[0048] Furthermore, the inside of the grinding box 100 is provided with an arc cavity 107, and the side wall of the grinding box 100 is provided with an arc groove 108. The end of the rotating shaft 201 slides left and right along the arc groove 108, so that the first rolling assembly 202 and the second rolling assembly 203 slide along the arc cavity 107. The arc groove 108 is provided with a movable folding member 104, and the movable folding member 104 moves with the sliding of the rotating shaft 201 to prevent the flour in the grinding box 100 from flowing out. Since the rotating shaft 201 is provided with four driving blocks 2011, the end of the rotating shaft 201 slides left and right in the arc groove 108 and jumps up and down, thereby driving the first rolling assembly 202 and the second rolling assembly 203 to hit the material.

[0049] Furthermore, a feed port 101 is provided on the grinding box 100, and a discharge port 109 is provided at the bottom of the arc-shaped cavity 107. The feed port 101 corresponds to the discharge port 109 up and down. A locking piece 102 is provided on the outer wall of the grinding box 100 to clamp and fix the grinding box 100 to avoid damage to the grinding box 100.

[0050] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0051] The material is poured into the arc-shaped cavity 107 from the feed port 101, and the first drive mechanism 106 and the second drive mechanism 105 are started. Figure 5As shown, the first driving mechanism 106 drives the two rotating shafts 201 to rotate synchronously clockwise, and the second driving mechanism 105 drives the bottom plate 111 to rotate counterclockwise along the base 110. The ends of the two rotating shafts 201 slide in the arc groove 108, so that the rotating shaft 201 will jump up and down, thereby driving the first rolling assembly 202 and the second rolling assembly 203 on the rotating shaft 201 to rotate synchronously clockwise and jump up and down. Since the cam's own structure has an inclined surface, the first rolling assembly 202 and the second rolling assembly 203 can push and hit the large pieces of material to the bottom of the rotating shaft 201, thereby improving the grinding effect of the large pieces of material; since the first rolling assembly 202 and the second rolling assembly 203 are both matched with the rotating shaft 201 with a gap stop, the rotating shaft 201 is in the process of rotation. The driving block 2011 on the rotating shaft 201 will intermittently collide with the first stop block 2023 of the first rolling component 202 and the second stop block 2033 on the second rolling component 203, so that the first rolling component 202 and the second rolling component 203 will hit the material again, thereby improving the crushing effect of the material and causing the material attached to the first rolling component 202 and the second rolling component 203 to fall off; at the same time, due to the reverse force exerted by the material on the first rolling component 202 and the second rolling component 203, the gap position between the first rolling component 202 and the second rolling component 203 and the rotating shaft 201 will change, thereby driving the first rolling component 202 and the second rolling component 203 to swing left and right and back and forth along the rotating shaft 201, thereby expanding the crushing area and further improving the grinding effect. When the bottom plate 111 slides to the rightmost end of the arc track 113, the second driving mechanism 105 is controlled to drive the bottom plate 111 to rotate clockwise, and the first driving mechanism 106 is controlled to drive the rotating shaft 201 to rotate counterclockwise, so as to achieve reciprocating crushing and hammering of the material, and so on.

[0052] During the crushing process, due to the uneven distribution of materials in the front and rear directions, when the rotating shaft 201 detects through the internal pressure sensing sheet that there is more material at the rear and less material at the front, Fig.11As shown, the first pushing mechanism can be controlled to drive its sliding block 212 to retract forward, so that the sliding block 212 pushes the front pushing column 213 to extend from above the rotating shaft 201, thereby increasing the distance between the first cam 2022 and the top of the rotating shaft 201, so that the rear of the first rolling assembly 202 is higher than the front; and the second pushing mechanism drives its sliding block 212 to extend, and the sliding block 212 moves forward to push the front pushing column 213 to extend from below the rotating shaft 201, so that the distance between the second cam 2032 and the bottom of the rotating shaft 201 is increased, and the second rolling assembly 203 is The front is lower than the rear; in this way, the first rolling assembly 202 and the second rolling assembly 203 are tilted forward as a whole, which can drive the material to be transported forward; on the contrary, when it is detected that there are more materials in the front and less materials in the rear, the first pushing mechanism can be controlled to drive its sliding block 212 to extend backward, so that the rear of the first rolling assembly 202 is lower than the front; at the same time, the second pushing mechanism is controlled to drive the sliding block 212 to shrink backward, so that the front of the second rolling assembly 203 is higher than the rear, and the first rolling assembly 202 and the second rolling assembly 203 are tilted backward as a whole, driving the material to be transported backward. After the final crushing is completed, the discharge port 109 is opened to allow the crushed material to flow out.

[0053] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0054] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A flour milling device for flour production, characterized in that: The present invention comprises a grinding box, wherein a grinding mechanism is arranged in the grinding box, wherein the grinding mechanism comprises a bottom plate, a rotating shaft is rotatably arranged on the bottom plate, the rotating shaft extends in the front-rear direction and moves in the left-right direction, the rotating shaft is transmission-connected with a first driving mechanism, a first rolling assembly and a second rolling assembly are arranged on the rotating shaft, the first rolling assembly comprises a first connecting piece and a plurality of first cams, the first cam is sleeved on the rotating shaft and cooperates with the rotating shaft clearance, and the first connecting piece connects the plurality of first cams; the second rolling assembly comprises a second connecting piece and a plurality of second cams, the second cam is sleeved on the rotating shaft and cooperates with the rotating shaft clearance, and the second cam is located between two adjacent first cams, and the second connecting piece connects the plurality of second cams; the first driving mechanism drives the rotating shaft to rotate, thereby driving the first rolling assembly and the second rolling assembly. The components rotate synchronously, so that the first rolling component and the second rolling component push and hit the material to the bottom of the rotating shaft, the inner circumference of the first cam is provided with a first block, the inner circumference of the second cam is provided with a second block, the outer circumference of the rotating shaft is provided with four driving blocks, the two driving blocks are divided into a group, the first block is located between the two driving blocks of one group, and the second block is located between the two driving blocks of the other group, the first block and the second block are both matched with the circumferential stop of the driving block, the interior of the grinding box is provided with an arc-shaped cavity, the side wall of the grinding box is provided with an arc-shaped groove, the end of the rotating shaft slides left and right along the arc-shaped groove, so that the first rolling component and the second rolling component slide along the arc-shaped cavity, and during the rotation of the rotating shaft, the driving block on the rotating shaft will intermittently hit the first block of the first rolling component and the second block of the second rolling component.

2. The flour milling device for flour production according to claim 1, characterized in that: A first pushing mechanism and a second pushing mechanism are provided inside the rotating shaft; the first pushing mechanism and the second pushing mechanism are respectively located at two ends of the rotating shaft, the first pushing mechanism is used to push the first cam to tilt the first rolling assembly relative to the rotating shaft, and the second pushing mechanism is used to push the second cam to make the second rolling assembly tilt in the same direction as the first rolling assembly.

3. The flour milling device for flour production according to claim 2, characterized in that: The first pushing mechanism includes a cylinder, the output end of the cylinder is connected to a sliding block, and the front and rear sides of the sliding block are respectively provided with pushing columns, and the pushing columns can extend from the rotating shaft, one pushing column is located above the rotating shaft, and the other pushing column is located below the rotating shaft.

4. The flour milling device for flour production according to claim 3, characterized in that: In the circumferential direction of the rotating shaft, the two thrust columns are respectively located between the two groups of driving blocks.

5. The flour milling device for flour production according to claim 4, characterized in that: The structure of the second pushing mechanism is the same as that of the first pushing mechanism, and the first pushing mechanism and the second pushing mechanism are oriented in opposite directions.

6. The flour milling device for flour production according to claim 1, characterized in that: The rotating shafts are provided with two, the bottom plate is provided with two support rod groups, each support rod group is slidably provided with a telescopic bracket, the rotating shaft is rotatably set on the respective telescopic brackets, the first driving mechanism is transmission-connected with a first pulley, the ends of the two rotating shafts are transmission-connected with second pulleys, the two second pulleys are transmission-connected with the first pulley through their respective transmission belts, and each support rod group is also provided with a tensioning wheel, and the tensioning wheel is used to tension the transmission belt.

7. The flour milling device for flour production according to claim 6, characterized in that: The bottom plate is an arc-shaped plate, a base is provided at the bottom of the grinding box, an arc-shaped track is provided on the base, a second driving mechanism is provided on the base, and the second driving mechanism drives the arc-shaped plate to slide left and right along the arc-shaped track.

8. The flour milling device for flour production according to claim 1, characterized in that: The grinding box is provided with a feed port, and the bottom of the arc-shaped cavity is provided with a discharge port, and the feed port corresponds to the discharge port up and down.

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