A grinding device for grinding grains

Abstract

The invention relates to the technical field of grain milling, and specifically discloses a grinding device for grain milling, comprising: a conveying member 1, a conveying member 2, a containing box and a pressing part, wherein the conveying member 1 and the conveying member 2 are both installed in a shell, the containing box is connected to the conveying member 1, the containing box is used to contain granular wheat, the pressing part is connected to the conveying member 2, the conveying member 2 can drive the pressing part to move to the top of the containing box, the pressing part can move downward and flatten the wheat in the containing box, the conveying member 1 can drive the containing box to move, and dump the containing box between two grinding rollers; the grinding device for grain milling of the invention flattens the granular wheat in the containing box by moving the pressing part downward, and dumps the flattened wheat between the two grinding rollers, so that the wheat is easier to break during grinding, the energy consumption in the grinding process is reduced, the contact surface area of ​​the wheat and the grinding roller is increased, and the grinding efficiency of the wheat is improved.

Description

Technical Field

[0001] The invention relates to the technical field of grain grinding, and in particular to a grinding device for grain grinding. Background Art

[0002] Cereals are the main source of heat energy for the human body. China's traditional diet is mainly based on cereals. About 80% of the heat energy and 50% of the protein required by the human body are provided by cereals. Wheat is a kind of cereal. The process of grinding wheat into flour involves multiple steps, including cleaning, adding water to moisten the wheat, grinding, etc. A grain roller mill is a machine composed of two rollers rotating in opposite directions, usually made of metal or metal alloy. The distance between these rollers is adjusted according to the size of the material to be ground and the required flour particle size.

[0003] A Chinese patent application document with publication number CN116408177A discloses a grain mill and a grinding method thereof, comprising a frame, a grinding box, a driving motor, an active grinding roller and a driven grinding roller; the frame is equipped with a grinding box; the interior of the grinding box is equipped with an active grinding roller through a driving motor; the grinding box above one side of the active grinding roller is equipped with a driven grinding roller through a clamping mechanism. The grain mill has a compact structure and ingenious design, and can complete the separation of rice flour without a screen, thereby solving the problems of high noise and easy clogging in existing grinding devices, and is particularly suitable for the needs of grain grinding.

[0004] However, the above patent still has the following shortcomings: when the wheat is ground by the active grinding roller and the driven grinding roller, since the granular wheat itself has a certain hardness, the active grinding roller and the driven grinding roller are subjected to a large resistance when the granular wheat is ground, which easily increases the energy consumption in the grinding process, thereby reducing the grinding efficiency. Summary of the invention

[0005] The present invention provides a grinding device for grinding grains, aiming to solve the problem in the related art that granular wheat itself has a certain hardness, so that when the granular wheat is ground, the active grinding roller and the driven grinding roller are subjected to relatively large resistance, which easily increases the energy consumption in the grinding process, thereby reducing the grinding efficiency.

[0006] The invention discloses a grinding device for grinding grains, comprising a shell and two grinding rollers, wherein the two grinding rollers are rotatably connected in the shell and can rotate in opposite directions. The invention also comprises a flattening mechanism, wherein the flattening mechanism is located above the two grinding rollers. The flattening mechanism comprises a conveying member 1, a conveying member 2, a containing box and a pressing portion, wherein the conveying member 1 and the conveying member 2 are both installed in the shell, the containing box is connected to the conveying member 1, and the containing box is used for containing granular wheat. The pressing portion is connected to the conveying member 2, and the conveying member 2 can drive the pressing portion to move to the top of the containing box, and the pressing portion can move downward and flatten the wheat in the containing box. The conveying member 1 can drive the containing box to move and tip the containing box between the two grinding rollers.

[0007] Beneficial effect: The granular wheat in the containing box is flattened by moving the lower pressing part downward, and the flattened wheat is poured between the two grinding rollers, so that the wheat is easier to break during grinding, the energy consumption during the grinding process is reduced, the contact surface area between the wheat and the grinding roller is increased, and the wheat grinding efficiency is improved.

[0008] Preferably, a guide member is connected inside the shell, the guide member includes an inclined section and a horizontal section, an elastic part 1 is connected between the pressing part and the conveying part 2, the pressing part can move downward when passing through the inclined section, and the elastic part 1 is in a compressed state.

[0009] Preferably, a scraper is connected inside the housing, and when the pressing part passes through the horizontal section, the pressing part is separated from the container box, the elastic part 1 is in a compressed state, and the scraper can scrape off the wheat adhering to the bottom of the pressing part. The effect is that when the elastic part 1 is in a compressed state, the pressing part can be closely contacted with the horizontal section, so that the scraper can be used to scrape off the wheat adhering to the bottom of the pressing part.

[0010] Preferably, the conveying member 1 includes an active roller 1, a driven roller 1, an endless steel belt and an endless belt, the active roller 1 and the driven roller 1 are both rotatably connected in the shell, the endless steel belt is transmission-connected between the active roller 1 and the driven roller 1, the endless belt is bonded to the outer side of the endless steel belt, and the container box is connected to the endless belt and is in contact with the endless steel belt.

[0011] Preferably, the housing is connected with a support part 1, which contacts the inner top side of the endless steel belt. The effect is that when the container box is subjected to downward pressure, the endless steel belt can be supported by the support part 1 to avoid affecting the operation of the conveying member 1.

[0012] Preferably, the contact surface between the supporting portion 1 and the annular steel belt is a smooth surface.

[0013] Preferably, a knocking mechanism is connected inside the shell, and the knocking mechanism includes a knocking part, a second elastic part, and a lever. The knocking part is slidably connected inside the shell, and the knocking part can knock the container box. The second elastic part is connected between the knocking part and the shell. The lever rotates and drives the knocking part to move. The effect is that when the lever rotates, the lever can drive the knocking part to move upward and compress the second elastic part. After the lever is separated from the knocking part, the knocking part is driven downward by the action of the second elastic part and knocks the annular steel belt, so that the wheat adhering to the container box can be removed.

[0014] Preferably, a shaking part is connected inside the housing, and the flattened wheat can fall onto the shaking part. The shaking part is located between the flattening mechanism and the grinding roller, and the shaking part can shake up and down. The effect is that when the shaking part shakes up and down, the flattened wheat can be collided, thereby dispersing the wheat that sticks together, so as to improve the subsequent wheat grinding efficiency.

[0015] The beneficial effects of the present invention are:

[0016] 1. When the conveying member 1 and the conveying member 2 respectively drive the containing box and the pressing part to move, the pressing part can move to the top of the containing box, and the granular wheat in the containing box is flattened by the downward movement of the pressing part, and the flattened wheat is poured between the two grinding rollers, so that the wheat is easier to break during grinding, the energy consumption during grinding is reduced, the surface area of ​​the wheat in contact with the grinding roller is increased, and the grinding efficiency of the wheat is improved.

[0017] 2. The scraper can scrape off the wheat adhered to the bottom of the pressing part, and the knocking part that moves up and down can knock the container box to remove the wheat adhered to the container box, so as to facilitate the subsequent use of the pressing part and the container box.

[0018] 3. The up and down shaking part can make the flattened wheat collide, so as to disperse the wheat adhering to one piece, so as to improve the subsequent wheat grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a main perspective three-dimensional structural schematic diagram of the present invention.

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the present invention.

[0021] Figure 3 It is a schematic diagram of the front cross-sectional structure of the flattening mechanism of the present invention.

[0022] Figure 4 It is a three-dimensional structural schematic diagram of the flattening mechanism of the present invention.

[0023] Figure 5 It is a three-dimensional structural schematic diagram of the transmission member of the present invention.

[0024] Figure 6 It is a schematic diagram of the front cross-sectional structure of the striking mechanism of the present invention.

[0025] Figure 7 It is a three-dimensional structural schematic diagram of the dispersion mechanism of the present invention.

[0026] Figure 8 It is a schematic diagram of the main structure of the dispersion mechanism of the present invention.

[0027] Reference numerals:

[0028] 1. Grinding mechanism; 11. Shell; 111. Through slot; 12. Grinding roller; 13. Driving member 1; 14. Feed hopper; 2. Flattening mechanism; 21. Transmission member 1; 211. Active roller 1; 212. Driven roller 1; 213. Annular steel belt; 214. Annular belt; 22. Transmission member 2; 221. Active roller 2; 222. Driven roller 2; 223. Transmission belt 1; 224. Driving source; 23. Transmission member; 231. Gear 1; 232. Rotating part; 233. Gear 2; 234. Transmission wheel; 235. Transmission belt 2; 24. Container box; 25. Support part 1; 26. Pressing member; 261. Long board; 262. Movable part; 263. Elastic part 1; 264. Pressing member; 27. Guide member; 271. Inclined section; 272. Horizontal section; 28. Support part 2; 29. ​​Scraper; 3. Beating mechanism; 31. Transmission roller 1; 32. Transmission roller 2; 33. Vertical rod; 34. Beating part; 35. Elastic part 2; 36. Pushing rod; 4. Dispersing mechanism; 41. Shaking part; 42. Pushing part; 43. Lifting part; 44. Elastic part 3; 45. Sealing part. DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0030] like Figures 1 to 8 As shown, the grinding device for grinding grains of the present invention comprises a grinding mechanism 1, a flattening mechanism 2, a beating mechanism 3 and a dispersing mechanism 4. The grinding mechanism 1 is used for grinding wheat. The flattening mechanism 2 is connected to the grinding mechanism 1 and is used for flattening the wheat before grinding so that the wheat is easier to break during grinding, thereby reducing the energy consumption during the grinding process, increasing the contact surface area of ​​the wheat with the grinding mechanism 1, and improving the grinding efficiency of the wheat. The beating mechanism 3 is connected to the grinding mechanism 1 and can beat the flattening mechanism 2 to prevent the flattened wheat from adhering to the flattening mechanism 2. The dispersing mechanism 4 is connected to the grinding mechanism 1 and can disperse the wheat that adheres together after being flattened, so that each flattened wheat can be effectively ground, thereby further improving the grinding efficiency of the wheat.

[0031] like Figure 1 and Figure 2 As shown, the grinding mechanism 1 includes a shell 11, a grinding roller 12, a driving member 13 and a feed hopper 14. Two grinding rollers 12 are provided. Both grinding rollers 12 are rotatably connected in the shell 11. The driving member 13 is connected to the shell 11. Both grinding rollers 12 are connected to the driving member 13. The driving member 13 can drive the two grinding rollers 12 to rotate in opposite directions, thereby achieving wheat grinding (the driving member 13 is a prior art and will not be described in detail here). The feed hopper 14 is connected to the top of the shell 11, and is used to transport wheat to between the two grinding rollers 12. A screening member (not shown in the figure, the screening member is a prior art and will not be described in detail here) is also connected to the shell 11. The screening member is arranged below the grinding roller 12, and is used to screen and discharge flour and bran formed after grinding.

[0032] The driving member 13 is started to drive the two grinding rollers 12 to rotate in opposite directions, and the wheat is transported to between the two grinding rollers 12 through the feed hopper 14. The wheat is ground by the two grinding rollers 12 rotating in opposite directions, and the flour and bran formed after grinding are discharged after being sieved by the sieving member.

[0033] like Figures 1 to 6 As shown, the flattening mechanism 2 includes a conveying member 21, a conveying member 22, a transmission member 23, a container box 24, a support portion 25, a pressing member 26, a guide member 27, a support portion 28 and a scraper 29. The conveying member 21 and the conveying member 22 are both installed in the housing 11, and the conveying member 21 is located below the conveying member 22. The transmission member 23 is connected between the conveying member 21 and the conveying member 22, so that when the conveying member 22 is running, the conveying member 21 can be driven to run synchronously through the transmission member 23. The container box 24 is connected to the conveying member 21 for containing wheat, and the pressing member 26 is connected to the conveying member 22.

[0034] The support part 1 25, the guide member 27, the support part 28 and the scraper 29 are all connected in the shell 11. The conveying member 22 can drive the pressing member 26 to move. The pressing member 26 can move downward through the guide member 27 and squeeze the wheat in the container box 24, thereby flattening the wheat. The support part 1 25 is located on the inner side of the conveying member 1 21, and is used to provide support for the container box 24 to avoid the pressure member 26 pressing down the container box 24 and affecting the operation of the conveying member 1 21. The support part 28 is located on the inner side of the conveying member 22, and is used to provide support for the pressure member 26 to avoid the pressure member 26 moving downward and affecting the operation of the conveying member 22. The scraper 29 is located on the trajectory of the conveying member 22 driving the pressure member 26 to move, and can scrape off the wheat adhered to the pressure member 26.

[0035] Continue to refer Figures 1 to 6As shown, the transmission member 21 includes an active roller 211, a driven roller 212, an endless steel belt 213 and an endless belt 214. The active roller 211 and the driven roller 212 are both rotatably connected in the housing 11. The endless steel belt 213 is transmission-connected between the active roller 211 and the driven roller 212. The support portion 25 is in contact with the inner top side of the endless steel belt 213, and the contact surface between the support portion 25 and the endless steel belt 213 is a smooth surface, thereby reducing the friction between the support portion 25 and the endless steel belt 213. The endless belt 214 is bonded to the outer side of the endless steel belt 213. The endless belt 214 Made of rubber material, the bottom of the feed hopper 14 is in contact with the top of the circular belt 214, the circular belt 214 is provided with six installation openings, and six containing boxes 24 are provided. The six containing boxes 24 are respectively bonded to the six installation openings on the circular belt 214, and the containing boxes 24 are in contact with the circular steel belt 213, so that the containing boxes 24 can be supported by the circular steel belt 213 when squeezed, and at this time the containing boxes 24 are located above the supporting part 25, and the circular steel belt 213 is supported by the supporting part 25 to avoid the circular steel belt 213 being squeezed and affecting the operation of the conveying member 21.

[0036] The driving roller 211, the driven roller 212 and the endless steel belt 213 can transmit power to enable the endless belt 214 to drive the containing box 24 to move.

[0037] Continue to refer Figures 1 to 6 As shown, the transmission member 22 includes an active roller 221, a driven roller 222, a transmission belt 1 223 and a driving source 224. The active roller 221 and the driven roller 222 are both rotatably connected to the inner side of the shell 11. The transmission belt 1 223 is provided in two. The two transmission belts 1 223 are both transmission-connected between the active roller 221 and the driven roller 222. The two transmission belts 1 223 are respectively close to the front side and the rear side of the inner wall of the shell 11. The lower pressure member 26 is connected between the two transmission belts 1 223. The active roller 221 and the driven roller 222 are connected to the inner side of the shell 11. The outer sides of the two rollers 222 are provided with an annular groove for avoiding the pressing piece 26. There are three pressing pieces 26. The three pressing pieces 26 can squeeze the wheat in the six containers 24 one by one in turn. The driving source 224 is a motor. The driving source 224 is connected to the rear side of the shell 11. The output end of the driving source 224 is connected to the active roller 221. Starting the driving source 224 can drive the transmission between the active roller 221, the driven roller 222 and the transmission belt 1 223, thereby driving the pressing piece 26 to move to the top of the container 24.

[0038] Continue to refer Figures 1 to 6As shown, the transmission member 23 includes a gear 1 231, a rotating part 232, a gear 233, a transmission wheel 234 and a transmission belt 235. The gear 1 231 is connected to the connecting shaft of the active roller 221, the rotating part 232 is rotatably connected to the front side of the housing 11, the gear 233 is connected to the rotating part 232, the gear 1 231 and the gear 2 233 are meshed and connected, two transmission wheels 234 are provided, and the two transmission wheels 234 are respectively connected to the connecting shaft of the active roller 1 211 and the rotating part 232, and the transmission belt 235 is transmission-connected to the housing 11. When the active roller 221 between the two transmission wheels 234 rotates, it can drive the meshing transmission between the gear 1 231 and the gear 2 233, so that the rotating part 232 and the active roller 2 221 rotate in the opposite direction. At the same time, through the transmission between the transmission belt 235 and the two transmission wheels 234, the active roller 1 211 and the active roller 2 221 rotate in the opposite direction, so that the running directions of the conveying member 1 21 and the conveying member 2 22 are opposite, so that the lower pressing member 26 is moved to the top of the container box 24, and the lower pressing member 26 and the container box 24 move synchronously.

[0039] Continue to refer Figures 1 to 6 As shown, the pressing member 26 includes a long plate 261, a movable part 262, an elastic part 263 and a pressing part 264. The long plate 261 is connected between the transmission belts 223, the movable part 262 is inserted on the long plate 261, the elastic part 263 is connected between the long plate 261 and the movable part 262, the elastic part 263 can drive the movable part 262 to reset, the pressing part 264 is connected to the movable part 262, the guide member 27 is located on the inner side of the transmission belt 223, the guide member 27 includes an inclined section 271 and a horizontal section 272, when the movable part 262 passes through the inclined section 271, it can be guided downward by the inclined section 271 to compress the elastic part 263 and drive the pressing part 264 to move downward into the container box 24, thereby flattening the wheat in the container box 24.

[0040] Continue to refer Figures 1 to 6As shown, the second support part 28 is located below the second conveying member 22. When the pressing member 26 moves to the inclined section 271, the bottom of the long plate 261 contacts the top of the second support part 28. The contact surfaces of the long plate 261 and the second support part 28 are smooth surfaces to reduce the friction between the long plate 261 and the second support part 28. When the movable part 262 moves downward, the long plate 261 can be supported by the second support part 28 to avoid affecting the operation of the second conveying member 22 when the pressing member 26 presses down the wheat in the packaging box 24. The movable part 262 is separated from the inclined section 271. Afterwards, the movable part 262 is driven by the elastic part 263 to move upward until the top of the movable part 262 is in close contact with the bottom of the horizontal section 272. At this time, the pressing part 264 is separated from the container box 24, and the elastic part 263 is still in a compressed state. When the conveying member 22 drives the pressing member 26 to continue to move, the wheat adhered to the bottom of the pressing part 264 can be scraped off by the scraper 29 to facilitate the subsequent use of the pressing part 264. After the movable part 262 is separated from the horizontal section 272, the movable part 262 and the pressing part 264 are reset by the elastic part 263.

[0041] like Figure 2 , Figure 3 and Figure 6 As shown, the knocking mechanism 3 includes a transmission roller 1 31, a transmission roller 2 32, a vertical rod 33, a knocking portion 34, an elastic portion 2 35 and a lever 36. The transmission roller 1 31 and the transmission roller 2 32 are both rotatably connected in the housing 11, and the transmission roller 1 31 and the transmission roller 2 32 are in close contact. The transmission roller 1 31 and the driven roller 1 212 are in close contact, so that when the driven roller 1 212 rotates, the transmission roller 1 31 can be driven to rotate in the opposite direction, and the transmission roller 1 31 drives the transmission roller 2 32 to rotate, and the transmission roller 2 32 and the driven roller 1 212 rotate in the same direction. The vertical rod 33 The knocking part 34 is connected to the bottom of the support part 25, and the knocking part 34 is sleeved on the bottom of the vertical rod 33, and the bottom of the knocking part 34 is in contact with the inner bottom side of the annular steel belt 213. The elastic part 2 35 is connected between the knocking part 34 and the support part 25, and is used to drive the knocking part 34 to reset. The transmission roller 1 31 and the transmission roller 2 32 are both provided with annular grooves, and the shifting rod 36 is connected to the annular groove of the transmission roller 2 32. The shifting rod 36 can be avoided through the annular grooves on the transmission roller 1 31 and the transmission roller 2 32, so that the shifting rod 36 can be driven to rotate by the transmission roller 2 32.

[0042] When the driven roller 1 212 rotates, it drives the transmission roller 1 31 and the transmission roller 2 32 to rotate, and under the action of the transmission roller 1 31, the transmission roller 2 32 and the driven roller 1 212 rotate in the same direction, and when the transmission roller 2 32 rotates, it drives the lever 36 to rotate, and when the lever 36 rotates, it can push the striking part 34 upward and compress the elastic part 2 35. After the lever 36 is separated from the striking part 34, under the action of the elastic part 2 35, the striking part 34 is driven to move downward and strike the annular steel belt 213, so that the annular steel belt 213 and the container box 24 vibrate, thereby removing the wheat adhered to the container box 24, so as to facilitate the normal use of the container box 24 later.

[0043] like Figure 1 , Figure 7 and Figure 8 As shown, a through slot 111 is provided on the front side of the housing 11, and the dispersion mechanism 4 includes a shaking portion 41, a pushing portion 42, a lifting portion 43, an elastic portion 44 and a blocking portion 45. The shaking portion 41 is inclined and arranged on the inner side of the housing 11, and the shaking portion 41 is located between the flattening mechanism 2 and the grinding roller 12. The wheat flattened by the flattening mechanism 2 can fall onto the shaking portion 41, and then fall from the shaking portion 41 to between the two grinding rollers 12. The pushing part 42 is connected to the connecting shaft of the driven roller 212, the lifting part 43 is connected to the rocking part 41, the lifting part 43 passes through the through slot 111, and the lifting part 43 is limitedly slidably connected in the through slot 111, the elastic part 44 is connected between the lifting part 43 and the through slot 111, and is used to drive the lifting part 43 to reset, the blocking part 45 is connected to the rocking part 41, and the blocking part 45 contacts the front side of the inner wall of the shell 11, and is used to block the through slot 111.

[0044] The conveying member 21 continues to run and can pour the flattened wheat in the containing box 24 onto the shaking part 41. When the driven roller 212 rotates, it can drive the pushing part 42 to rotate. When the pushing part 42 rotates, it pushes the lifting part 43 to move downward, so that the lifting part 43 drives the shaking part 41 to move downward and compresses the elastic part 3 44. After the pushing part 42 is separated from the lifting part 43, the lifting part 43 and the shaking part 41 are driven to move upward by the elastic part 3 44, so that the shaking part 41 shakes up and down. When the shaking part 41 shakes up and down, the flattened wheat can be collided, thereby dispersing the wheat adhered to one piece, so as to improve the subsequent wheat grinding efficiency.

[0045] Working principle:

[0046] The granular wheat is conveyed into the feed hopper 14, and the conveying member 22 is started. The conveying member 21 is driven to run synchronously through the transmission member 23, and the bottom of the feed hopper 14 is blocked by the circular belt 214 on the conveying member 21. When the conveying member 21 drives the containing box 24 to pass through the bottom of the feed hopper 14, the feed hopper 14 can convey the granular wheat into the containing box 24, so that a thin layer of granular wheat remains in the containing box 24.

[0047] The container box 24 continues to move, and when the container box 24 moves to below the conveying member 22, the conveying member 22 drives the pressing member 26 to move to above the container box 24. When the pressing member 26 passes through the guide member 27, the long plate 261 is supported by the supporting portion 28. At the same time, the movable portion 262 moves downward after being guided by the inclined section 271, thereby driving the pressing portion 264 to move downward and flatten the wheat in the container box 24.

[0048] After the movable part 262 is separated from the inclined section 271, the elastic part 1 263 drives the movable part 262 to move upward until the top of the movable part 262 is in close contact with the bottom of the horizontal section 272. At this time, the pressing part 264 is separated from the container box 24, and the elastic part 1 263 is still in a compressed state. When the conveying member 22 drives the pressing member 26 to continue to move, the wheat adhered to the bottom of the pressing part 264 is scraped off by the scraper 29. After the movable part 262 is separated from the horizontal section 272, the pressing part 264 and the movable part 262 are reset by the elastic part 1 263.

[0049] When the driven roller 212 on the conveying member 21 rotates, it drives the driving roller 31 and the driving roller 32 to rotate, and under the action of the driving roller 31, the driving roller 32 and the driven roller 212 rotate in the same direction, and when the driving roller 32 rotates, it drives the lever 36 to rotate, and when the lever 36 rotates, it pushes the knocking part 34 upward and compresses the elastic part 2 35. After the lever 36 is separated from the knocking part 34, the knocking part 34 is driven to move downward and knock the annular steel belt 213 under the action of the elastic part 2 35, so that the annular steel belt 213 and the container box 24 vibrate, thereby removing the wheat adhering to the container box 24.

[0050] The conveying member 21 continues to run to pour the flattened wheat in the containing box 24 onto the shaking part 41. When the driven roller 212 rotates, it can drive the pushing part 42 to rotate. When the pushing part 42 rotates, it pushes the lifting part 43 to move downward, so that the lifting part 43 drives the shaking part 41 to move downward and compresses the elastic part 3 44. After the pushing part 42 is separated from the lifting part 43, the lifting part 43 and the shaking part 41 are driven to move upward by the elastic part 3 44, so that the shaking part 41 shakes up and down. When the shaking part 41 shakes up and down, the flattened wheat can be collided, thereby dispersing the wheat adhered to one piece.

[0051] The flattened wheat is dispersed and falls between the two grinding rollers 12. The driving member 13 is started to drive the two grinding rollers 12 to rotate in the opposite direction, and the wheat is transported to between the two grinding rollers 12 through the feed hopper 14. The wheat is ground by the two grinding rollers 12 rotating in the opposite direction. The flour and bran formed after grinding are discharged after being sieved by the sieving member.

[0052] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0054] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A grinding device for grinding grains, comprising a housing and two grinding rollers, both of which are rotatably connected in the housing and can rotate in opposite directions, characterized in that: It also includes a flattening mechanism, which is located above the two grinding rollers. The flattening mechanism includes a conveying member 1, a conveying member 2, a containing box and a pressing part. The conveying member 1 and the conveying member 2 are both installed in the shell. The containing box is connected to the conveying member 1, and the containing box is used to contain granular wheat. The pressing part is connected to the conveying member 2. The conveying member 2 can drive the pressing part to move to the top of the containing box, and the pressing part can move downward and flatten the wheat in the containing box. The conveying member 1 can drive the containing box to move and dump the containing box between the two grinding rollers. A guide member is connected inside the shell, and the guide member includes an inclined section and a horizontal section. An elastic part 1 is connected between the pressing part and the second conveying member. The pressing part can move downward when passing through the inclined section to compress the elastic part 1 and drive the pressing part to move downward into the container box, thereby flattening the wheat in the container box. The conveying member 1 includes a driving roller 1, a driven roller 1, an endless steel belt and an endless belt. The driving roller 1 and the driven roller 1 are both rotatably connected in the shell. The endless steel belt is transmission-connected between the driving roller 1 and the driven roller 1. The endless belt is bonded to the outer side of the endless steel belt. The container box is connected to the endless belt and is in contact with the endless steel belt. The driving roller 1, the driven roller 1 and the endless steel belt can transmit the energy, so that the endless belt drives the container box to move; It also includes a transmission member, which is connected between the conveying member 1 and the conveying member 2, so that when the conveying member 2 is running, it can drive the conveying member 1 to run synchronously through the transmission member, so that the position of the containing box on the conveying member 1 corresponds to the position of the lower pressing part on the conveying member 2 when it moves downward.

2. The grain milling device according to claim 1, characterized in that: A scraper is connected inside the shell. When the pressing part passes through the horizontal section, the pressing part is separated from the container box, and the elastic part is in a compressed state. The scraper can scrape off the wheat adhered to the bottom of the pressing part.

3. The grain milling device according to claim 1, characterized in that: A support part 1 is connected inside the shell, and the support part 1 is in contact with the inner top side of the annular steel belt.

4. The grain milling device according to claim 3, characterized in that: The contact surface between the supporting part 1 and the annular steel belt is a smooth surface.

5. The grain milling device according to claim 1, characterized in that: A striking mechanism is connected inside the shell, and the striking mechanism includes a striking part, a second elastic part and a lever. The striking part is slidably connected inside the shell and can strike the container box. The second elastic part is connected between the striking part and the shell. The lever rotates and drives the striking part to move.

6. The grain grinding device according to any one of claims 1 to 5, characterized in that: The shell is connected with a shaking part, and the flattened wheat can fall onto the shaking part. The shaking part is located between the flattening mechanism and the grinding roller, and the shaking part can shake up and down.

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