Grain grinding device

Abstract

The invention discloses a grain grinding device, and belongs to the technical field of grain grinding. Comprising a loading bottom plate, one side of the loading bottom plate is fixedly connected with a mounting shell through a bearing rod, an auxiliary mechanism is arranged at the top end of the mounting shell, a material storage cavity is formed in the top end of the loading bottom plate, and a driving mechanism is arranged in the mounting shell. According to the device, the wetted wheat can be graded step by step and ground circularly in a circulating progressive mode, finished products are produced at a time, and the problems that the grain size difference of grains in an existing device is large, new grains are continuously added into the device during processing, small grains may be ground too early, and the grain size difference is large are solved. The problem that large particles cannot be fully ground in the prior art is solved, the particle size distribution of a final product is not uniform, the finished product is influenced, if the particles are large, the particles are difficult to enter the finished product flour through a subsequent screen, and the flour yield is reduced.

Description

Technical Field

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

[0002] Grain milling generally refers to a mechanical device used to process grains. Its main function is to process the original grain raw materials into various forms of food, feed or industrial materials. The grain milling device can shell, peel, grind and process rice, wheat and other grains in a unified or separate manner to convert them into people's daily food, such as rice, flour, etc. These devices achieve fine processing of grains through specific processes and mechanical structures, such as the grinding action of the grinding wheel of the rice mill and the motor drive of the flour mill. Among them, when grinding grains, for certain specially treated grains, such as grinding after tempering, tempering refers to sending the watered wheat into the device for grinding.

[0003] At present, in the process of grain milling, the wheat after tempering is not handled well, resulting in reduced production capacity, or poor milling effect, clumping, etc. If the moisture content in the grain is too high or too low, it will also have a series of impacts on the equipment. Summary of the invention

[0004] In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a grain milling device, which effectively solves the problems of reduced production capacity or poor milling effect and agglomeration caused by poor wheat processing after tempering, improves the fineness of flour, and also improves the whiteness of grains.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a grain grinding device, comprising a loading base plate, one side of the loading base plate is fixedly connected to a mounting shell through a load-bearing rod, the top of the mounting shell is provided with an auxiliary mechanism, the top of the loading base plate is provided with a storage cavity, the interior of the mounting shell is provided with a driving mechanism, the driving mechanism comprises a driving motor, the output end of the driving motor is fixedly connected with an auxiliary roller, a plurality of groups of supporting wheels are provided on one side of the inner wall of the storage cavity, a material dividing mechanism is meshed on the surface of the supporting wheel, a guide rail is further provided on one side of the inner wall of the storage cavity, the guide rail is used to make the material dividing mechanism perform a circular motion thereon, the inner wall of the storage cavity is rotatably connected with a receiving mechanism near the middle of the supporting wheel, and a loading mechanism is further provided at the position where the inner wall of the storage cavity is aligned with the center of the receiving mechanism.

[0006] Furthermore, the auxiliary mechanism includes an auxiliary shell arranged at the top of the mounting shell, the inner bottom wall of the auxiliary shell is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a cross plate, the interior of the cross plate is rotatably connected to a feeding pipe, a material guide cavity is provided at the end of the feeding pipe, a material discharge groove is opened inside the material guide cavity, and is communicated with the feeding pipe.

[0007] Furthermore, an auxiliary rotating rod is fixedly connected to the end of the auxiliary roller, a toothed belt is meshed on the surface of the auxiliary roller, an auxiliary roller is meshed inside the toothed belt, the auxiliary roller is rotatably connected to the mounting shell, a polygonal conveying tube is movably provided inside the auxiliary roller, one end of the polygonal conveying tube is fixedly connected to a first grinding tooth, the other end of the polygonal conveying tube is rotatably connected to one end of a feeding pipe, and the interior of the first grinding tooth is communicated with the interior of the polygonal conveying tube.

[0008] Furthermore, the material distribution mechanism comprises a first conveyor belt body meshed with the surface of the supporting wheel, a plurality of groups of carrying cavities are arranged on the surface of the first conveyor belt body, and two groups of grinding components are rotatably connected inside the carrying cavities.

[0009] Furthermore, the surface of the grinding assembly is provided with a plurality of groups of grinding tooth blocks in a circular array, and the surfaces of the two groups of grinding assemblies are rotated by guide rails.

[0010] Furthermore, the receiving mechanism includes an auxiliary rolling wheel rotatably connected to the inner wall of the storage chamber, and the outer surface of the auxiliary rolling wheel is also provided with a plurality of scraping grooves. The interior of the auxiliary rolling wheel is fixedly connected to a first adjusting rod, and the interior of the first adjusting rod is rotatably connected to a receiving short rod, and the surface of the receiving short rod is slidably connected to an intermittent component.

[0011] Furthermore, an intermittent notch is provided on the surface of the intermittent component, the intermittent notch is slidably connected to the surface of the receiving short rod, the intermittent component is rotationally connected to the material storage cavity, and the surface of the intermittent component is engaged with the first conveyor belt body.

[0012] Furthermore, a transmission belt is rotatably connected to the surface of the auxiliary rotating rod, and the interior of the transmission belt is meshed with the surface of the auxiliary rolling wheel.

[0013] Furthermore, the loading mechanism includes a material discharge shell arranged on the inner wall of the storage cavity, the inner wall of the material discharge shell is a cavity formed by a circle and a trapezoid, two groups of support blocks are arranged at the intersection of the cavity formed by the circle and the trapezoid, and a plurality of groups of balls are arranged on the upper end part of the support blocks on the inner wall of the material discharge shell, and the surface of the balls is slidably connected to a grinding assembly.

[0014] Furthermore, a plurality of groups of grinding notches are arranged inside the grinding component, and a plurality of groups of grinding holes are opened through the surface of the grinding component and the inside of the grinding notches.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a grain grinding device. Through the arrangement of an auxiliary mechanism, a receiving mechanism and a driving mechanism, the wheat after tempering can be graded and cyclically ground in a cyclic progressive manner to produce a finished product at one time, thereby avoiding the problem that the grain particle size difference inside the existing device is large, and new grains are continuously added into the device during processing, resulting in smaller particles being crushed prematurely and larger particles not being fully ground, resulting in uneven particle size distribution of the final product, affecting the finished product. If the particles are large, it is difficult for these particles to pass through the subsequent screen into the finished flour, thereby reducing the flour extraction rate.

[0016] Through the setting of the material distribution mechanism and the loading mechanism, when the device is in operation, the grains after the wheat tempering and milling will produce more or less agglomeration effect inside the device due to the residual moisture. The moisture distribution of wheat is uneven during the wheat tempering process. Some wheat absorbs too much moisture and is easy to stick to each other during milling to form agglomerations. Different batches or varieties of wheat may have different water absorption and physical properties. When the wheat is unevenly dry and wet after preliminary milling, when it is milled inside the device, some grains will be left with time to allow the dry and wet grains to fully react and moisten the wheat, which also facilitates the subsequent re-milling work. When the grains enter the interior of the carrier cavity, the grinding assembly and the guide rail are used together to crush the agglomerated grains, and at the same time, they are fully mixed with the drier moistened grains in the cavity, so that the agglomerated wheat can be fully crushed and separated during the milling process, thereby improving the quality of the product, improving the fineness of the flour, and also improving the whiteness of the grains. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the device of the present invention; Figure 2 It is a schematic structural diagram of the whole device of the present invention from another perspective; Figure 3 It is a schematic diagram of the overall cross-section of the device of the present invention and the distribution structure of the internal parts; Figure 4 It is a structural schematic diagram of another viewing angle of a section of the entire device of the present invention; Figure 5 It is a schematic diagram of the auxiliary rolling wheel, transmission belt and auxiliary rotating rod structure of the present invention; Figure 6It is a schematic diagram of the overall disassembly and positional relationship of the device of the present invention; Figure 7 It is a schematic diagram of the disassembled structure of the driving mechanism of the present invention; Figure 8 It is a schematic diagram of the structure of the material distribution mechanism and the driving mechanism of the present invention; Fig. 9 For the present invention Figure 8 The enlarged schematic diagram at A in the middle; Fig.10 It is a schematic diagram of a partial cross-sectional structure of the loading mechanism of the present invention; Fig.11 It is a schematic diagram of the loading mechanism and the first grinding tooth split structure of the present invention; Fig.12 This is a schematic diagram of the matching structure of the first grinding tooth and the grinding assembly of the present invention; Fig.13 This is a schematic diagram of the structure of the matching relationship between the carrier cavity and the grinding assembly of the present invention; Fig.14 It is a schematic diagram of the positional relationship of the intermittent assembly and the short connecting rod used in combination with each other in the present invention; Fig.15 It is a schematic diagram of a partial cross-sectional structure of the loading mechanism of the present invention.

[0018] In the figure: 1, loading base plate; 2, mounting shell; 3, auxiliary mechanism; 31, auxiliary shell; 32, cylinder; 33, cross plate; 34, feeding pipe; 35, material guide cavity; 4, material storage cavity; 5, driving mechanism; 51, driving motor; 52, auxiliary roller; 53, auxiliary rotating rod; 54, toothed belt; 55, auxiliary roller; 56, polygonal conveying pipe; 57, first grinding tooth; 6, supporting wheel; 7, material distribution mechanism; 71, first conveying Belt conveyor body; 72, carrier cavity; 73, grinding assembly; 731, grinding tooth block; 8, guide rail; 9, receiving mechanism; 91, auxiliary rolling wheel; 92, first adjusting rod; 93, receiving short rod; 94, intermittent assembly; 941, intermittent slot; 10, loading mechanism; 101, unloading shell; 102, support block; 103, ball bearing; 104, grinding assembly; 1041, grinding slot; 1042, grinding hole; 12, transmission belt. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] In order to further understand the content of the present invention, the present invention is described in detail in conjunction with the accompanying drawings.

[0021] Combination Figure 1-Figure 15A grain grinding device comprises a loading base plate 1, one side of the loading base plate 1 is fixedly connected with a mounting shell 2 through a bearing rod, the top of the mounting shell 2 is provided with an auxiliary mechanism 3, the top of the loading base plate 1 is provided with a storage cavity 4, the interior of the mounting shell 2 is provided with a driving mechanism 5, the driving mechanism 5 comprises a driving motor 51, the output end of the driving motor 51 is fixedly connected with an auxiliary roller 52, one side of the inner wall of the storage cavity 4 is provided with a plurality of groups of supporting wheels 6, the surface of the supporting wheel 6 is meshed with a material dividing mechanism 7, one side of the inner wall of the storage cavity 4 is further provided with a guide rail 8, the guide rail 8 is used to make the material dividing mechanism 7 perform a circular motion thereon, the inner wall of the storage cavity 4 is rotatably connected with a receiving mechanism 9 near the middle of the supporting wheel 6, and a loading mechanism 10 is further provided at the position where the inner wall of the storage cavity 4 is aligned with the center of the receiving mechanism 9.

[0022] When the device is in use, first, the grains are fed into the auxiliary mechanism 3, and then, through the drainage of the auxiliary mechanism 3, the grains are sent to the cooperation point of the receiving mechanism 9 and the driving mechanism 5 for initial grinding. After the initial grinding, the grains are unloaded from the bottom of the loading mechanism 10. At this time, the grains are fully mixed and the lumps are broken by the cooperation of the dividing mechanism 7 and the guide rail 8, and then a new round of grinding is carried out.

[0023] An auxiliary rotating rod 53 is fixedly connected to the end of the auxiliary roller 52, a toothed belt 54 is meshed on the surface of the auxiliary roller 52, an auxiliary roller 55 is meshed inside the toothed belt 54, the auxiliary roller 55 is rotatably connected to the mounting shell 2, a polygonal conveying tube 56 is movably provided inside the auxiliary roller 55, one end of the polygonal conveying tube 56 is fixedly connected to a first grinding tooth 57, the other end of the polygonal conveying tube 56 is rotatably connected to one end of the feeding pipe 34, and the interior of the first grinding tooth 57 is communicated with the interior of the polygonal conveying tube 56.

[0024] The output end of the cylinder 32 drives the cross plate 33 to push forward. At this time, the distance between the auxiliary rolling wheel 91 and the first grinding tooth 57 becomes smaller, and the driving motor 51 operates again. After the grain passes through the material guide cavity 35 and the feeding pipe 34, it is finally discharged from the first grinding tooth 57 through the end of the polygonal conveying pipe 56, and the grain is initially ground through the gap generated by the first grinding tooth 57 and the auxiliary rolling wheel 91.

[0025] An auxiliary rotating rod 53 is fixedly connected to the end of the auxiliary roller 52, a toothed belt 54 is meshed on the surface of the auxiliary roller 52, an auxiliary roller 55 is meshed inside the toothed belt 54, the auxiliary roller 55 is rotatably connected to the mounting shell 2, a polygonal conveying tube 56 is movably provided inside the auxiliary roller 55, a first grinding tooth 57 is fixedly connected to the end of the polygonal conveying tube 56, the end of the polygonal conveying tube 56 is rotatably connected to the feeding pipe 34, and the first grinding tooth 57 is communicated with the inside of the polygonal conveying tube 56.

[0026] When the auxiliary roller 55 drives the polygonal conveying tube 56 to rotate, the pre-treated moistened wheat passes through the material guide cavity 35 into the feed pipe 34, then into the polygonal conveying tube 56, and then flows out through the first grinding teeth 57, and preliminary grinding occurs at the joint between the first grinding teeth 57 and the auxiliary rolling wheel 91.

[0027] When the initial grinding size after tempering is qualified, the grain will leave the cavity created by the first grinding teeth 57 and the auxiliary rolling wheel 91. Then the surface of the first grinding teeth 57 and the surface of the auxiliary rolling wheel 91 will perform secondary preliminary processing on the grain inside the cavity of the grinding assembly 104.

[0028] The material distribution mechanism 7 includes a first conveyor belt body 71 meshed with the surface of the support wheel 6. The surface of the first conveyor belt body 71 is provided with a plurality of groups of carrying cavities 72. Two groups of grinding components 73 are rotatably connected inside the carrying cavities 72.

[0029] The surface of the grinding assembly 73 is provided with a plurality of groups of grinding tooth blocks 731 in a circular array, and the surfaces of the two groups of grinding assemblies 73 are both rotated by the guide rail 8 .

[0030] The two groups of grinding assemblies 73 move inside the carrying cavity 72 and are affected by the guide rails 8. While moving, the grinding assemblies 73 also rotate simultaneously to grind the agglomerated grains.

[0031] The receiving mechanism 9 includes an auxiliary rolling wheel 91 rotatably connected to the inner wall of the storage cavity 4, and the outer surface of the auxiliary rolling wheel 91 is also provided with a plurality of scraping tooth grooves, and the interior of the auxiliary rolling wheel 91 is fixedly connected to a first adjusting rod 92, and the interior of the first adjusting rod 92 is rotatably connected to a receiving short rod 93, and the surface of the receiving short rod 93 is slidably connected to an intermittent component 94.

[0032] The intermittent component 94 has an intermittent notch 941 on its surface, and the intermittent notch 941 is slidably connected to the surface of the receiving short rod 93 . The intermittent component 94 is rotationally connected to the material storage cavity 4 , and the surface of the intermittent component 94 is meshed with the first conveyor belt body 71 .

[0033] The surface of the auxiliary rotating rod 53 is rotatably connected with a transmission belt 12 , and the interior of the transmission belt 12 is meshed with the surface of the auxiliary rolling wheel 91 .

[0034] The loading mechanism 10 includes a material unloading shell 101 arranged on the inner wall of the material storage cavity 4, the inner wall of the material unloading shell 101 is a cavity formed by a circle and a trapezoid, two groups of support blocks 102 are arranged at the intersection of the circular and trapezoidal cavities, and a plurality of groups of rolling balls 103 are arranged on the upper end of the support blocks 102 on the inner wall of the material unloading shell 101, and a grinding assembly 104 is slidably connected to the surface of the rolling balls 103.

[0035] A plurality of grinding slots 1041 are disposed inside the grinding assembly 104 , and a plurality of grinding holes 1042 are formed through the surface of the grinding assembly 104 and the inside of the grinding slots 1041 .

[0036] The auxiliary rolling wheel 91 is driven to rotate by the auxiliary rotating rod 53 and the transmission belt 12 matched therewith. At this time, when the auxiliary rolling wheel 91 and the first grinding tooth 57 rotate, the cavity formed inside the grinding assembly 104 matched therewith grinds the grains. After the auxiliary rolling wheel 91, the first grinding tooth 57 and the grinding assembly 104 grind the grains at the edges and corners produced by the grinding groove 1041, the grains will pass into the grinding hole 1042, and then enter the interior of the unloading shell 101. At this time, the ball 103 will drive the grinding assembly 104 to rotate in a limited position as the grinding assembly 104 rotates slightly.

[0037] First, according to production needs, personnel will mix different types of wheat according to the formula ratio, that is, the wheat blending process, to ensure that the mixed wheat obtains the highest total yield and good flour yield under the premise of ensuring quality. Then, the wheat is adjusted to have a certain moisture content and placed in the inside of the material guide cavity 35. Then, the drive motor 51 is started. At this time, the drive motor 51 inside the mounting shell 2 starts to operate, and the drive motor 51 drives the auxiliary roller 52 and the auxiliary rotating rod 53 to operate. At this time, the toothed belt 54 on the surface of the auxiliary roller 52 drives the auxiliary roller 55 to start to move in the same direction. When the auxiliary roller 55 drives the polygonal conveying pipe 56 to rotate, the pre-treated moistened wheat passes through the material guide cavity 35 into the inside of the feeding pipe 34, and then into the The grains are initially ground into the polygonal conveying tube 56 and then flow out through the first grinding teeth 57, where they are initially ground at the joint of the first grinding teeth 57 and the auxiliary rolling wheel 91. When the initial grinding size after tempering is qualified, the grains will leave the cavity formed by the first grinding teeth 57 and the auxiliary rolling wheel 91, and then the surface of the first grinding teeth 57 and the surface of the auxiliary rolling wheel 91 will perform secondary preliminary processing on the grains in the cavity of the grinding assembly 104. The auxiliary rolling wheel 91 drives the auxiliary rolling wheel 91 to rotate through the auxiliary rotating rod 53 and the transmission belt 12 matched therewith. At this time, when the auxiliary rolling wheel 91 and the first grinding teeth 57 rotate, the cavity formed inside the grinding assembly 104 matched therewith grinds the grains. Grinding process, when the auxiliary rolling wheel 91 and the first grinding teeth 57 and the grinding assembly 104 grind the grains at the edges and corners, they will pass through the grinding slot 1041 into the grinding hole 1042, and then enter the interior of the discharge shell 101. At this time, the ball 103 will drive the grinding assembly 104 to rotate within a limited position as the grinding assembly 104 rotates slightly. When the grinded grains inside are at the highest point, some of the adhered grains will fall with gravity, causing the grinded grains in the circular cavity of the discharge shell 101 to fall to the inclined surface of the cavity formed by the trapezoid. At this time, the support block 102 is arranged to prevent the grinding assembly 104 from falling off the discharge shell 101 during operation, so that it can rotate stably. When the shell 101 slides down to the inner bottom chamber of the storage chamber 4, at this time, the rotation of the first adjusting rod 92 drives the intermittent component 94 to work. When the receiving short rod 93 slides inside the intermittent slot 941, the intermittent component 94 will rotate intermittently. When the intermittent component 94 works, the intermittent component 94 drives the first conveyor belt body 71 on the surface of the supporting wheel 6 to rotate, so that it drives the carrying chamber 72 to scoop the moistened grains inside the device to avoid sticking to the inner bottom wall due to too long time. When the moistened grains inside enter the carrying chamber 72, the two grinding components 73 are located inside the carrying chamber 72 and circulate on the surface of the guide rail 8. The rotation of the grinding component 73 drives the grinding tooth block 731 to rotate at the same time.The stuck grains are crushed and ground. At the same time, when one of the carrying chambers 72 moves to a certain height, the grains after the first round of preliminary processing are sent again into the guide chamber 35. At this time, the drive motor 51 stops working, and the output end of the cylinder 32 drives the cross plate 33 to push forward. At this time, the distance between the auxiliary rolling wheel 91 and the first grinding tooth 57 becomes smaller, and the drive motor 51 starts to work again.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain grinding device, comprising a loading base plate (1), characterized in that: One side of the loading base plate (1) is fixedly connected to a mounting shell (2) via a bearing rod, an auxiliary mechanism (3) is arranged at the top of the mounting shell (2), a material storage cavity (4) is arranged at the top of the loading base plate (1), a driving mechanism (5) is arranged inside the mounting shell (2), the driving mechanism (5) comprises a driving motor (51), an output end of the driving motor (51) is fixedly connected to an auxiliary roller (52), a plurality of groups of supporting wheels (6) are arranged on one side of the inner wall of the material storage cavity (4), a material distribution mechanism (7) is meshed on the surface of the supporting wheel (6), a guide rail (8) is also arranged on one side of the inner wall of the material storage cavity (4), the guide rail (8) is used to make the material distribution mechanism (7) perform circular motion thereon, a receiving mechanism (9) is rotatably connected to the middle of the inner wall of the material storage cavity (4) near the supporting wheel (6), and a loading mechanism (10) is also arranged at a position where the inner wall of the material storage cavity (4) is aligned with the center of the receiving mechanism (9).

2. A grain grinding device according to claim 1, characterized in that: The auxiliary mechanism (3) comprises an auxiliary housing (31) arranged at the top of the mounting housing (2); the inner bottom wall of the auxiliary housing (31) is fixedly connected to a cylinder (32); the output end of the cylinder (32) is fixedly connected to a transverse plate (33); the interior of the transverse plate (33) is rotatably connected to a feeding pipe (34); a material guide cavity (35) is arranged at the end of the feeding pipe (34); a material discharge notch is provided inside the material guide cavity (35) and is in communication with the feeding pipe (34).

3. A grain grinding device according to claim 1, characterized in that: The material distribution mechanism (7) comprises a first conveyor belt body (71) meshed with the surface of the support wheel (6), a plurality of groups of carrier cavities (72) being provided on the surface of the first conveyor belt body (71), and two groups of grinding assemblies (73) being rotatably connected inside the carrier cavities (72).

4. A grain grinding device according to claim 1, characterized in that: The loading mechanism (10) comprises a material discharge shell (101) arranged on the inner wall of a material storage cavity (4); the inner wall of the material discharge shell (101) is a cavity formed by a circle and a trapezoid; two groups of support blocks (102) are arranged at the intersection of the circular and trapezoidal cavities; a plurality of groups of rolling balls (103) are arranged on the inner wall of the material discharge shell (101) at the upper end of the support blocks (102); and a grinding assembly (104) is slidably connected to the surface of the rolling balls (103).

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