Grain grinding equipment
By designing grain grinding equipment including shelling and grinding mechanisms, the problem that existing equipment can only be ground in one go is solved, efficient shelling and multiple grinding of grains is achieved, and the grinding effect and fineness are improved.
Patent Information
- Application Number
- CN202411329106.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2044-09-24
AI Technical Summary
The existing grain grinding equipment can only be ground once, and the raw materials after processing are rougher and have poor grinding effect, making it difficult to achieve secondary grinding.
A grain grinding device including a shell, a shelling mechanism and a grinding mechanism is designed to achieve shelling and initial grinding through a rotor, a adjusting rod, a curved plate and an elastic grinding belt, and initial grinding is performed using the first grinding disc and grinding block. Grind, the second grinding disc and grinder perform secondary grinding to ensure thorough grinding of the grain.
Efficient shelling and multiple grinding of the grains are achieved, improving the grinding effect, avoiding shell doping, and ensuring the delicateness and uniformity of the grains.
Smart Images
Figure CN118847279B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of grinding equipment, in particular to a grain grinding equipment. Background Art
[0002] Cereals cover a wide range, including rice, wheat, millet, soybeans and other grains. Cereals include rice, wheat, millet, soybeans, etc., which are mainly plant seeds and fruits. After being ground into flour, they can be used to make bread, steamed buns, biscuits, noodles and other foods. Cereals are rich in starch, protein, fat, minerals, calcium, iron, vitamins and other nutrients. They are an important source of B vitamins in the diet and also provide a certain amount of inorganic salts.
[0003] According to a Chinese patent with the publication number of "CN220610550U", a grain grinding device is disclosed, which relates to the technical field of grain grinding devices, including a base plate, a debris box, and a push handle. The top of the base plate is fixedly connected with the grinding box, the top of the base plate is movably connected with the debris box, and the bottom of the base plate is fixedly connected with an A column. By moving a motor, a slave gear, a main gear, a threaded shaft, a support pad, a push handle, a base plate, and a limiting block, a grain grinding device has a moving function, which avoids the grinding device being generally large and heavy and difficult to move. By vibrating a motor, a screen, a debris mouth grain box, an A sleeve, an A rod, an A spring, a B sleeve, a B rod, and a B spring, a grain grinding device has the function of screening grains and debris and collecting them uniformly, which avoids the unevenness of the debris after grinding, which is usually collected uniformly, making it difficult to separate the ground grains from the debris.
[0004] The above patent can only grind the grains once when in use, and it is difficult to grind the grains twice. The processed raw materials are relatively rough and the grinding effect is poor. Therefore, a grain grinding device is proposed to solve the above problems. Summary of the invention
[0005] The technical problem to be solved by the present invention is to provide a grain grinding device in view of the deficiencies in the above-mentioned prior art.
[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is: a grain grinding device, comprising a shell, the top of the shell is connected to a feed hopper, the top of the inner wall of the shell is fixedly connected to a support rod, the bottom of the support rod is fixedly connected to a feed tray, and a shelling mechanism is arranged inside the shell, and the shelling mechanism includes a rotating drum, an adjusting rod, a sliding sleeve, a connecting rod, an arc plate, an elastic grinding belt, a telescopic rod, a second spring, and an arc frame;
[0007] The rotating drum passes through the top of the unloading tray through a bearing, the adjusting rod is rotatably connected to the inner wall of the rotating drum through a bearing, the sliding sleeve is threadedly sleeved on the outer wall of the adjusting rod, the two ends of the connecting rod are respectively hinged to the sliding sleeve and the arc plate, the elastic grinding belt is bonded to the outer side of the arc plate, the two ends of the telescopic rod are respectively fixedly connected to the outer wall of the rotating drum and the inner side of the arc plate, the second spring is sleeved on the telescopic rod, the two ends of the second spring are respectively fixedly connected to the outer wall of the rotating drum and the inner side of the arc plate, and the arc frame is fixedly connected to the inner wall of the shell.
[0008] Preferably, the rotating drum passes through the feed hopper, and the outer wall of the rotating drum is fixedly connected with a spiral blade, and the spiral blade is arranged at the connection between the shell and the feed hopper, and the inner wall of the arc frame is fixedly installed with an infrared rangefinder, the number of the arc plates is six, and a first spring is arranged on the arc plate, and the two ends of the first spring are respectively fixedly connected to two adjacent arc plates.
[0009] Preferably, a disc is provided inside the shell, a first driving motor is fixedly mounted on the top of the disc, and an output end of the first driving motor is transmission-connected to the rotating drum via a gear set.
[0010] Preferably, an air pump is fixedly installed on the top of the disc, and the output end of the air pump is connected to the bottom of the rotating drum through a rotating joint. An exhaust hole is provided on the outer wall of the rotating drum, and a collecting hole is provided on the inner side of the arc frame. The bottom of the inner wall of the arc frame is inclined, and a discharge pipe is connected to one side of the arc frame.
[0011] Preferably, the shelling mechanism also includes a first grinding disc, a rotating disc, and a grinding block. The first grinding disc is fixedly connected to the inner wall of the shell, and the rotating drum passes through the top of the first grinding disc through a bearing. The top of the first grinding disc is provided with a first grinding groove, and the bottom of the first grinding groove is provided with a discharge port. The rotating disc is fixedly mounted on the outer wall of the rotating drum, and the top of the rotating disc is inclined. The grinding block is fixedly connected to the bottom of the rotating disc, and the grinding block is slidably connected to the inner wall of the first grinding groove.
[0012] Preferably, a grinding mechanism is provided inside the shell, and the grinding mechanism includes a second grinding disc, an inclined block, a second grinding groove, and a grinder. The second grinding disc is fixedly connected to the inner wall of the shell, the inclined block is fixedly connected to the inner side of the second grinding disc, and the inclined block is fixedly connected to the disc, the second grinding groove is opened on the inner side of the second grinding disc, the grinder is fixedly sleeved on the outer wall of the rotating drum, and the top of the grinder is inclined.
[0013] Preferably, the number of the second grinding grooves is three, the three second grinding grooves are arranged up and down, three grinding heads are arranged on the outer side of the grinder, and the three grinding heads are slidably connected to the inner walls of the three second grinding grooves respectively.
[0014] Preferably, a baffle is fixedly connected to the top of the disc, and the air pump and the first drive motor are both located inside the baffle.
[0015] Preferably, a collecting mechanism is provided on the shell, and the collecting mechanism includes a rotating shaft, a rocking arm, a collecting bucket, a second driving motor, a third rotating rod, and a rotating blade. The rotating shaft rotates and passes through the outer wall of the shell, the rocking arm is fixedly connected to one side of the rotating shaft, the collecting bucket is fixedly connected to the rotating shaft, and the collecting bucket is located inside the shell, the second driving motor is fixedly installed at the bottom of the collecting bucket, the third rotating rod is fixedly connected to the output end of the second driving motor, and the third rotating rod passes through the bottom of the collecting bucket through a bearing, and the rotating blade is fixedly installed on the top of the third rotating rod.
[0016] Preferably, a placement seat is provided at the bottom of the inner wall of the shell, a barrel cover is provided on the placement seat, and an anti-slip pad is provided at the bottom of the shell.
[0017] The present invention adopts the above technical solution to bring the following beneficial effects:
[0018] 1. A grain grinding device can adjust the distance between the elastic grinding belt and the arc frame by arranging an adjusting rod sliding sleeve, a connecting rod, and an arc plate, so that it is easy to adjust according to the size of different grains, thereby improving the practicality of the device. By arranging a first driving motor and a gear set, the rotating drum can be driven to rotate, thereby driving the elastic grinding belt to rotate, and the grains are shelled without manual shelling, thereby improving work efficiency and facilitating subsequent grain grinding.
[0019] 2. This grain grinding equipment can collect the grain husks produced by shelling by arranging an air pump, a rotary joint, and an exhaust hole to avoid the contamination of grain husks in subsequent grinding, which affects the grain grinding effect. The grain husks can be discharged and collected separately by arranging a discharge pipe.
[0020] 3. This kind of grain grinding equipment can perform preliminary grinding of shelled grains by arranging a first grinding disc, a first grinding groove, a feeding port, a rotating disc and a grinding block, so as to facilitate subsequent fine grinding of the grains and improve the efficiency of subsequent grinding.
[0021] 4. This kind of grain grinding equipment can perform secondary grinding on the grains after preliminary grinding by setting a second grinding disc and a grinder. By setting three second grinding grooves and three grinding heads, the grinding accuracy can be gradually improved, so that the grains can be ground more thoroughly and the grinding effect is better.
[0022] 5. This grain grinding equipment can collect the ground grains by setting a collecting bucket, and can grind the ground grains again by setting a second driving motor, a third rotating rod and a rotating blade, so as to avoid agglomeration of the ground grains, thereby facilitating subsequent processing. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the structure of the present invention;
[0024] Figure 2 It is a front schematic diagram of the present invention;
[0025] Figure 3 It is a front cross-sectional view of the present invention;
[0026] Figure 4 This is an enlarged view of point A of the present invention;
[0027] Figure 5 It is an enlarged view of B of the present invention;
[0028] Figure 6 It is an enlarged view of point C of the present invention;
[0029] Figure 7 It is an enlarged view of D of the present invention;
[0030] Figure 8 This is an enlarged view of point E of the present invention;
[0031] Fig. 9 This is a schematic diagram of a first grinding disc of the present invention;
[0032] Fig.10 It is a schematic diagram of the second grinding disc of the present invention.
[0033] In the figure: 1, shell; 2, feed hopper; 3, support rod; 4, unloading plate; 5, shelling mechanism; 501, rotating drum; 502, adjusting rod; 503, sliding sleeve; 504, connecting rod; 505, arc plate; 506, elastic grinding belt; 507, first spring; 508, telescopic rod; 509, second spring; 510, arc frame; 511, infrared rangefinder; 512, disc; 513, air pump; 514, first drive motor; 515, Gear set; 516, exhaust hole; 517, discharge pipe; 518, first grinding disc; 519, rotating disc; 520, grinding block; 6, grinding mechanism; 601, second grinding disc; 602, inclined block; 603, second grinding groove; 604, grinder; 605, baffle; 7, collecting mechanism; 701, rotating shaft; 702, rocker; 703, collecting barrel; 704, second driving motor; 705, third rotating rod; 706, rotating blade. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0035] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 on the present invention.
[0036] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0037] 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.
[0038] See also Figure 1-10 One embodiment of the present invention is: a grain grinding device, comprising a shell 1, a feeding hopper 2 is connected to the top of the shell 1, a support rod 3 is fixedly connected to the top of the inner wall of the shell 1, a feed tray 4 is fixedly connected to the bottom of the support rod 3, a shelling mechanism 5 is arranged inside the shell 1, and the shelling mechanism 5 includes a rotating drum 501, an adjusting rod 502, a sliding sleeve 503, a connecting rod 504, an arc plate 505, an elastic grinding belt 506, a telescopic rod 508, a second spring 509, and an arc frame 510;
[0039] The rotating drum 501 passes through the top of the unloading tray 4 through a bearing, the adjusting rod 502 is rotatably connected to the inner wall of the rotating drum 501 through a bearing, the sliding sleeve 503 is threadedly sleeved on the outer wall of the adjusting rod 502, the two ends of the connecting rod 504 are respectively hinged to the sliding sleeve 503 and the arc plate 505, the elastic grinding belt 506 is bonded to the outer side of the arc plate 505, the two ends of the telescopic rod 508 are respectively fixedly connected to the outer wall of the rotating drum 501 and the inner side of the arc plate 505, the second spring 509 is sleeved on the telescopic rod 508, the two ends of the second spring 509 are respectively fixedly connected to the outer wall of the rotating drum 501 and the inner side of the arc plate 505, and the arc frame 510 is fixedly connected to the inner wall of the shell 1.
[0040] Preferably, the rotating drum 501 passes through the feed hopper 2, and the outer wall of the rotating drum 501 is fixedly connected with a spiral blade, and the spiral blade is arranged at the connection between the shell 1 and the feed hopper 2, and the inner wall of the arc frame 510 is fixedly installed with an infrared rangefinder 511. The number of arc plates 505 is six, and a first spring 507 is arranged on the arc plate 505, and the two ends of the first spring 507 are respectively fixedly connected to two adjacent arc plates 505.
[0041] Preferably, a disc 512 is disposed inside the housing 1 , and a first driving motor 514 is fixedly mounted on the top of the disc 512 . The output end of the first driving motor 514 is transmission-connected to the rotating drum 501 via a gear set 515 .
[0042] Preferably, an air pump 513 is fixedly installed on the top of the disc 512, and the output end of the air pump 513 is connected to the bottom of the rotating drum 501 through a rotating joint. An exhaust hole 516 is opened on the outer wall of the rotating drum 501, and a collecting hole is opened on the inner side of the arc frame 510. The bottom of the inner wall of the arc frame 510 is inclined, and a discharge pipe 517 is connected to one side of the arc frame 510.
[0043] Preferably, the shelling mechanism 5 also includes a first grinding disc 518, a rotating disc 519, and a grinding block 520. The first grinding disc 518 is fixedly connected to the inner wall of the shell 1. The rotating drum 501 passes through the top of the first grinding disc 518 through a bearing. The top of the first grinding disc 518 is provided with a first grinding groove, and the bottom of the first grinding groove is provided with a discharge port. The rotating disc 519 is fixedly mounted on the outer wall of the rotating drum 501, and the top of the rotating disc 519 is inclined. The grinding block 520 is fixedly connected to the bottom of the rotating disc 519, and the grinding block 520 is slidably connected to the inner wall of the first grinding groove.
[0044] Preferably, a grinding mechanism 6 is provided inside the shell 1, and the grinding mechanism 6 includes a second grinding disc 601, an inclined block 602, a second grinding groove 603, and a grinder 604. The second grinding disc 601 is fixedly connected to the inner wall of the shell 1, the inclined block 602 is fixedly connected to the inner side of the second grinding disc 601, and the inclined block 602 is fixedly connected to the disc 512. The second grinding groove 603 is opened on the inner side of the second grinding disc 601, and the grinder 604 is fixedly sleeved on the outer wall of the rotating drum 501, and the top of the grinder 604 is inclined.
[0045] Preferably, the number of the second grinding grooves 603 is three, and the three second grinding grooves 603 are arranged up and down. Three grinding heads are arranged on the outer side of the grinder 604, and the three grinding heads are slidably connected to the inner walls of the three second grinding grooves 603 respectively.
[0046] Preferably, a baffle 605 is fixedly connected to the top of the disc 512 , and the air pump 513 and the first drive motor 514 are both located inside the baffle 605 .
[0047] Working principle: according to the size of the grain, the adjusting rod 502 is rotated, the adjusting rod 502 rotates to drive the sliding sleeve 503 to move up and down, the sliding sleeve 503 moves up and down to drive one end of the connecting rod 504 to move up and down, under the action of the telescopic rod 508 and the second spring 509, the connecting rod 504 drives the arc plate 505 to move horizontally, and the distance between the elastic grinding belt 506 and the arc frame 510 is detected by the infrared rangefinder 511, so as to adjust the distance between the elastic grinding belt 506 and the arc frame 510 to avoid too large a gap between the two. The effect of shelling is affected. After the adjustment is completed, the grains are poured into the shell 1 through the feed hopper 2, and the first drive motor 514 is started. The first drive motor 514 drives the drum 501 to rotate through the gear set 515. The rotation of the drum 501 drives the spiral blades to rotate, so that the grains in the feed hopper 2 can fall into the shell 1 evenly and stably to avoid the clogging of the feed hopper 2. The grains entering the shell 1 will fall between the arc frame 510 and the elastic grinding belt 506 through the discharge tray 4 and the slope at the top of the arc frame 510. When the drum 501 rotates The arc plate 505 is driven to rotate by the telescopic rod 508, thereby driving the elastic grinding belt 506 to rotate, so that the falling grains are shelled in the collision between the elastic grinding belt 506 and the arc frame 510, and the air pump 513 is started to discharge the air through the exhaust hole 516, and the outer shells of the grains pass through the collection hole into the arc frame 510 for collection, and the outer shells of the grains are discharged through the discharge pipe 517. The shelled grains slide down to the first grinding plate 518 on the first grinding plate through the top slope of the rotating plate 519. In the groove, the rotation of the rotating drum 501 drives the rotating disk 519 to rotate, thereby driving the grinding block 520 to rotate, and preliminarily grinds the grains in the first grinding groove. The preliminarily ground grains will fall onto the second grinding disk 601 through the discharge port, and slide along the inclined surface of the second grinding disk 601. The rotating drum 501 will drive the grinder 604 to rotate, thereby grinding the grains three times through the three second grinding grooves 603 and three grinding heads, so that the grain grinding is more thorough, and the ground grains will slide to the bottom through the gap between the inclined blocks 602.
[0048] See also Figure 1-10On the basis of the above embodiment, in another embodiment of the present invention, preferably, a collecting mechanism 7 is provided on the shell 1, and the collecting mechanism 7 includes a rotating shaft 701, a rocking arm 702, a collecting bucket 703, a second driving motor 704, a third rotating rod 705, and a rotating blade 706. The rotating shaft 701 rotates and passes through the outer wall of the shell 1, the rocking arm 702 is fixedly connected to one side of the rotating shaft 701, the collecting bucket 703 is fixedly connected to the rotating shaft 701, and the collecting bucket 703 is inside the shell 1, the second driving motor 704 is fixedly installed at the bottom of the collecting bucket 703, the third rotating rod 705 is fixedly connected to the output end of the second driving motor 704, and the third rotating rod 705 passes through the bottom of the collecting bucket 703 through a bearing, and the rotating blade 706 is fixedly installed on the top of the third rotating rod 705.
[0049] Preferably, a placement seat is provided at the bottom of the inner wall of the shell 1 , a barrel cover is provided on the placement seat, and an anti-slip pad is provided at the bottom of the shell 1 .
[0050] Working principle: The ground grains are collected through the collecting barrel 703. When the grains need to be further ground, the barrel cover on the placement seat is placed on the collecting barrel 703, and the third rotating rod 705 is driven to rotate by starting the second driving motor 704, thereby driving the rotating blade 706 to rotate, and the grains are further ground. The collecting barrel 703 is driven to swing by rotating the rocker 702, so that the contact between the grains and the rotating blade 706 is more thorough, thereby improving the grinding effect. After the grinding is completed, the barrel cover is opened, and the collecting barrel 703 is tilted by rotating the rocker 702, and the grain powder in the collecting barrel 703 is poured out.
[0051] The present invention provides a grain grinding device. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.
Claims
1. A grain grinding device, comprising a housing (1), characterized in that: The top of the shell (1) is connected to a feed hopper (2), the top of the inner wall of the shell (1) is fixedly connected to a support rod (3), the bottom of the support rod (3) is fixedly connected to a feed tray (4), and a shelling mechanism (5) is arranged inside the shell (1), the shelling mechanism (5) comprises a rotating drum (501), an adjusting rod (502), a sliding sleeve (503), a connecting rod (504), an arc plate (505), an elastic grinding belt (506), a telescopic rod (508), a second spring (509), and an arc frame (510); The rotating drum (501) passes through the top of the unloading plate (4) through a bearing, the adjusting rod (502) is rotatably connected to the inner wall of the rotating drum (501) through a bearing, the sliding sleeve (503) is threadedly sleeved on the outer wall of the adjusting rod (502), the two ends of the connecting rod (504) are respectively hinged to the sliding sleeve (503) and the arc plate (505), the elastic grinding belt (506) is bonded to the outer side of the arc plate (505), the two ends of the telescopic rod (508) are respectively fixedly connected to the outer wall of the rotating drum (501) and the inner side of the arc plate (505), the second spring (509) is sleeved on the telescopic rod (508), the two ends of the second spring (509) are respectively fixedly connected to the outer wall of the rotating drum (501) and the inner side of the arc plate (505), and the arc frame (510) is fixedly connected to the inner wall of the shell (1); The rotating drum (501) passes through the feed hopper (2), and the outer wall of the rotating drum (501) is fixedly connected with a spiral blade, and the spiral blade is arranged at the connection between the shell (1) and the feed hopper (2), the inner wall of the arc frame (510) is fixedly installed with an infrared rangefinder (511), the number of the arc plates (505) is six, a first spring (507) is arranged on the arc plate (505), and the two ends of the first spring (507) are respectively fixedly connected to two adjacent arc plates (505), a disc (512) is arranged inside the shell (1), and a first drive motor (514) is fixedly installed on the top of the disc (512), and the output end of the first drive motor (514) is transmission-connected to the rotating drum (501) through a gear set (515); The shelling mechanism (5) further comprises a first grinding disc (518), a rotating disc (519), and a grinding block (520); the first grinding disc (518) is fixedly connected to the inner wall of the housing (1); the rotating drum (501) passes through the top of the first grinding disc (518) via a bearing; a first grinding groove is provided at the top of the first grinding disc (518), and a material discharge port is provided at the bottom of the first grinding groove; the rotating disc (519) is fixedly sleeved on the outer wall of the rotating drum (501), and the top of the rotating disc (519) is inclined; the grinding block (520) is fixedly connected to the bottom of the rotating disc (519), and the grinding block (520) is slidably connected to the inner wall of the first grinding groove; A grinding mechanism (6) is arranged inside the shell (1), and the grinding mechanism (6) comprises a second grinding disc (601), an inclined block (602), a second grinding groove (603), and a grinder (604); the second grinding disc (601) is fixedly connected to the inner wall of the shell (1); the inclined block (602) is fixedly connected to the inner side of the second grinding disc (601), and the inclined block (602) is fixedly connected to the disc (512); the second grinding groove (603) is opened on the inner side of the second grinding disc (601); the grinder (604) is fixedly sleeved on the outer wall of the rotating drum (501), and the top of the grinder (604) is arranged tilted.
2. A grain grinding device according to claim 1, characterized in that: An air pump (513) is fixedly mounted on the top of the disc (512); an output end of the air pump (513) is connected to the bottom of the rotating drum (501) via a rotary joint; an exhaust hole (516) is provided on the outer wall of the rotating drum (501); a collecting hole is provided on the inner side of the arc frame (510); the bottom of the inner wall of the arc frame (510) is inclined; and a discharge pipe (517) is provided on one side of the arc frame (510).
3. A grain grinding device according to claim 2, characterized in that: The number of the second grinding grooves (603) is three, and the three second grinding grooves (603) are arranged up and down. Three grinding heads are arranged on the outside of the grinder (604), and the three grinding heads are respectively slidably connected to the inner walls of the three second grinding grooves (603).
4. A grain grinding device according to claim 3, characterized in that: A baffle (605) is fixedly connected to the top of the disc (512), and the air pump (513) and the first drive motor (514) are both located inside the baffle (605).
5. A grain grinding device according to claim 4, characterized in that: The housing (1) is provided with a collecting mechanism (7), the collecting mechanism (7) comprising a rotating shaft (701), a rocking arm (702), a collecting bucket (703), a second driving motor (704), a third rotating rod (705), and a rotating blade (706); the rotating shaft (701) rotates and passes through the outer wall of the housing (1); the rocking arm (702) is fixedly connected to one side of the rotating shaft (701); the collecting bucket (703) is fixedly connected to the rotating shaft (701), and the collecting bucket (703) is located inside the housing (1); the second driving motor (704) is fixedly mounted at the bottom of the collecting bucket (703); the third rotating rod (705) is fixedly connected to the output end of the second driving motor (704), and the third rotating rod (705) passes through the bottom of the collecting bucket (703) via a bearing; and the rotating blade (706) is fixedly mounted on the top of the third rotating rod (705).
6. A grain grinding device according to claim 5, characterized in that: A placement seat is provided at the bottom of the inner wall of the shell (1), a barrel cover is provided on the placement seat, and an anti-slip pad is provided at the bottom of the shell (1).