Grinding and screening device for oatmeal processing

Abstract

The invention relates to the technical field of oat processing, in particular to a grinding and screening device for oatmeal processing. Comprising a grinding rack, the grinding rack is fixedly connected with a shell, the shell is provided with a discharging pipe and a discharging opening, a filter screen is installed in the discharging pipe, the shell is provided with a sealing cover, and the sealing cover is provided with a feeding hopper; the inner container is rotationally connected into the shell, the inner container is fixedly connected with an elastic telescopic rod, and the telescopic end of the elastic telescopic rod is fixedly connected with crushing teeth; and the limiting block is fixedly connected to the sealing cover. According to the invention, oatmeal and oatmeal cakes adhered to the crushing teeth are vibrated off, so that the probability that the crushing teeth are wrapped by the oatmeal and oatmeal cakes is reduced, the frequency of cleaning the crushing teeth is reduced, the disassembly and assembly frequency of the shell and the sealing cover is reduced, and the probability of sealing failure caused by frequent disassembly and assembly between the shell and the sealing cover is reduced; and the service life of the device is prolonged.

Description

Technical Field

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

[0002] The oatmeal grinding and screening device is a device used to further process oatmeal into oat powder. The oatmeal grinding into powder is divided into two processes: direct grinding into powder and flaking before grinding into powder. Direct grinding into powder can maximize the retention of its natural nutrients, such as dietary fiber, vitamins and minerals. The oats that are flaked first and then ground into powder are first softened by steam and roller pressed, and are more easily crushed into fine powder, which helps to further destroy the cell structure during subsequent grinding and make the nutrients easier to be absorbed by the human body.

[0003] Grinding is a process of breaking solid materials into smaller particles or powders through mechanical action. The main structure of the existing oatmeal grinding device includes a closed shell and rotating crushing teeth, and the oatmeal is broken by the rotating impact of the crushing teeth.

[0004] In order to maintain the taste of oatmeal, the ideal water content of oatmeal is usually maintained between 8% and 12%. However, oatmeal will become sticky after being crushed and encountering water, which causes a portion of the oatmeal to become powdered after being crushed. The water in the crushed oatmeal is precipitated, causing the other portion of the oatmeal to form sticky lumps due to water accumulation. The lumps are wrapped around the crushing teeth, which will cause the hardness of the contact between the crushing teeth and the oatmeal to decrease over time, thereby affecting the efficiency of the oatmeal crushing. Therefore, once the existing crushing teeth are adhered to oat lumps, the sealed shell needs to be disassembled and the crushing teeth cleaned. This results in the need to disassemble and assemble the sealed shell every time the oatmeal is ground. Over time, the sealing of the sealed shell will decrease, causing the ground oatmeal powder in the sealed shell to leak during the oatmeal grinding process, thereby affecting the amount of oatmeal powder generated after grinding and affecting the grinding efficiency of the oatmeal powder. Summary of the invention

[0005] In order to overcome the shortcomings pointed out in the above background, the present invention provides a grinding and screening device for oatmeal processing.

[0006] The technical solution is: a grinding and screening device for oatmeal processing, comprising: A grinding frame, wherein the grinding frame is fixedly connected to a shell, the shell is provided with a discharge pipe and a discharge port, a filter screen is installed in the discharge pipe, the shell is provided with a sealing cover, and the sealing cover is provided with a feed hopper connected to the inside of the shell; An inner container is rotatably connected in the shell, the discharge pipe and the discharge port are both connected to the inner container, the inner container is fixedly connected with a plurality of circumferentially distributed elastic telescopic rods, the telescopic ends of the elastic telescopic rods are fixedly connected with crushing teeth, and the crushing teeth are slidably connected to the inner container; A power assembly, disposed on the grinding frame, for driving the inner container to rotate; The number of the limit blocks is the same as the number of the crushing teeth and is distributed circumferentially, and all are fixed to the sealing cover. The limit blocks are used to guide and impact all the crushing teeth.

[0007] Furthermore, the power assembly includes: A motor is fixedly connected to the grinding frame, and an output shaft of the motor is fixedly connected to a rotating shaft; A crushing wheel is fixedly connected to the inner container, and the crushing wheel and the rotating shaft are driven by a transmission member; A connecting portion is arranged on the sealing cover, the connecting portion is located between the inner container and the crushing wheel, the connecting portion is provided with a plurality of connecting holes distributed circumferentially, and the crushing teeth and the limiting block are both located between the connecting portion and the inner container.

[0008] Furthermore, it also includes: The flexible blocks, the number of which is the same as that of the limit blocks, are respectively fixed to adjacent limit blocks and are used to wipe the crushing teeth.

[0009] Furthermore, it also includes: An exhaust pipe is connected to the discharge pipe, a filter is installed in the exhaust pipe, and the discharge pipe is located at the upper part of the shell.

[0010] Further, the shell is provided with a first chamber, the exhaust pipe is communicated with the first chamber, the sealing cover is provided with a second chamber, and the first chamber and the second chamber are commonly provided with a sealing ring.

[0011] Furthermore, it also includes: The intercepting member is slidably connected to the feed hopper and is used for blocking the feed hopper.

[0012] Furthermore, it also includes: A connecting rope, one end of which is fixedly connected to the intercepting member, the other end of which is fixedly connected to a weight block, a sliding column is provided at a position of the connecting rope close to the rotating shaft, the sliding column of the connecting rope slides and rotates in the rotating shaft, the rotating shaft is fixedly connected to a fixed frame, and the weight block slides in the fixed frame; A fixed pulley is rotatably connected to the feed hopper, and the connecting rope is wound around the fixed pulley.

[0013] Furthermore, the connection point between the intercepting member and the connecting rope is located at the upper part thereof, and the position of the fixed pulley is higher than the position of the intercepting member.

[0014] Furthermore, it also includes: A sliding rod is slidably connected to the sealing cover and the connecting part. A sealing ring is fixedly connected to the sliding rod near the connecting hole. The sealing ring slides in the connecting part. The width of the sealing ring is greater than the width of the connecting hole. The sealing ring is used to seal the connecting hole.

[0015] Furthermore, it also includes: The threaded telescopic rod is fixedly connected to the fixed pulley, and the sliding rod is fixedly connected to the telescopic end of the threaded telescopic rod. The telescopic end of the threaded telescopic rod is used to drive the sliding rod to move so as to adjust the area of ​​the connecting hole blocked by the blocking ring.

[0016] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention shakes off the oatmeal powder and oatmeal lumps adhered to the crushing teeth to reduce the probability of the crushing teeth being wrapped by the oatmeal powder and oatmeal lumps, thereby reducing the frequency of cleaning the crushing teeth, thereby reducing the frequency of disassembly and assembly of the shell and the sealing cover, and reducing the probability of sealing failure between the shell and the sealing cover due to frequent disassembly and assembly, thereby extending the service life of the device; 2. During the grinding of oat flakes, the sealing ring is deformed and inserted into the second chamber to enhance the sealing between the housing and the sealing cover, thereby reducing the probability of oat powder leakage and reducing the impact of the grinding of oat powder on the external environment; 3. By increasing the rotation speed of the crushing teeth, the contact frequency between the crushing teeth and the oatmeal is increased, and the crushing efficiency of the oatmeal is improved. When the amount of oatmeal accumulated in the connecting part increases, the intercepting piece moves synchronously with the increase in the rotation speed of the crushing teeth, so that the opening amplitude of the feed hopper is reduced, the feed amount is adjusted, the amount of oatmeal accumulated in the connecting part is reduced, and the blocking amount of the connecting hole by the blocking ring is reduced synchronously with the increase in the rotation speed of the crushing teeth, so that larger oatmeal can pass through the connecting hole, further reducing the amount of oatmeal accumulated in the connecting part, so as to reduce the accumulation of large pieces of oatmeal in the connecting part, thereby preventing the presence of a large amount of moisture due to excessive accumulation of oatmeal in the connecting part, and then avoiding a large amount of oatmeal from agglomerating and affecting the grinding effect of the oatmeal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the grinding machine frame of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the housing of the present invention; Figure 4 It is a three-dimensional structural cross-sectional view of the shell and the inner container of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the connecting part of the present invention; Figure 6 It is a three-dimensional structural cross-sectional view of the sealing ring of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the crushing wheel of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting rope of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the sliding rod of the present invention.

[0018] Names and serial numbers of parts in the figure: 1-grinding frame, 101-shell, 1011-discharge pipe, 1012-discharge port, 102-sealing cover, 103-feed hopper, 2-inner liner, 201-elastic telescopic rod, 202-crushing teeth, 3-power assembly, 301-motor, 302-rotating shaft, 303-crushing wheel, 304-connecting part, 3041-connecting hole, 4-limiting block, 5-flexible block, 6-exhaust duct, 601-first chamber, 602-second chamber, 7-sealing ring, 8-interceptor, 801-connecting rope, 802-weight block, 803-fixed frame, 9-fixed pulley, 10-slide rod, 1001-sealing ring, 11-threaded telescopic rod. DETAILED DESCRIPTION

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] A grinding and screening device for processing oatmeal, such as Figure 1-Figure 5As shown, it includes: a grinding frame 1, a control terminal is installed on the grinding frame 1, the grinding frame 1 is fixedly connected to a shell 101, the shell 101 is provided with a discharge pipe 1011 and a discharge port 1012, the discharge pipe 1011 is used to discharge the ground oatmeal powder, a filter is installed in the discharge pipe 1011, the filter of the discharge pipe 1011 is used to block large pieces of oatmeal, so as to screen the oatmeal and the ground oatmeal powder, after the oatmeal is ground, the discharge port 1012 is used to discharge the oatmeal lumps and particles, in the process of grinding the oatmeal, the discharge port 1012 is in a closed state, the shell 101 is provided with a sealing cover 102, the sealing cover 102 is provided with a feed hopper 103 connected to the inside of the shell 101, the feed hopper 103 is provided with a feed port connected to the inside of the shell 101, and the lower bottom surface of the feed hopper 103 gradually slopes downward from right to left. The inner liner 2 is rotatably connected to the inner liner 101, and the inner liner 2 is provided with circumferentially distributed through holes, through which the discharge pipe 1011 and the discharge port 1012 are connected to the inner liner 2, and the inner liner 2 is fixedly connected with a plurality of circumferentially distributed elastic telescopic rods 201, and the inner liner 2 is provided with circumferentially distributed sawtooth bars for crushing the oatmeal, and the telescopic ends of the elastic telescopic rods 201 are fixedly connected with crushing teeth 202, and the crushing teeth 202 are slidably connected to the inner liner 2. Taking the crushing teeth 202 located on the upper side as an example, the front and rear sides of the upper crushing teeth 202 are provided with a plurality of linearly distributed tooth portions; a power assembly 3 is arranged on the grinding frame 1, and is used to drive the inner liner 2 to rotate; a limit block 4, the number of which is the same as the number of the crushing teeth 202 and is circumferentially distributed, is fixedly connected to the sealing cover 102, so as to Figure 1 The right view is the reference of the rotation direction. A guiding slope is provided at the position of the limit block 4 in the clockwise rotation direction toward the inner liner 2. The limit block 4 is composed of a trapezoidal block and a protrusion. The protrusion is located at the position of the limit block 4 in the counterclockwise rotation direction toward the inner liner 2. The guiding slope of the limit block 4 is used to guide all the crushing teeth 202, and the protrusion of the limit block 4 is used to impact all the crushing teeth 202.

[0021] like Figure 1-Figure 5 and Figure 7As shown, the power assembly 3 includes: a motor 301, which is fixedly connected to the grinding frame 1, and the output shaft of the motor 301 is fixedly connected to the rotating shaft 302, and the motor 301 is electrically connected to the control terminal; a crushing wheel 303, which is fixedly connected to the inner tank 2, and the crushing wheel 303 and the rotating shaft 302 are driven by a transmission member, wherein the transmission member is a pulley belt, and an air flow is generated by the rotation of the crushing wheel 303 to blow the crushed oatmeal powder to the discharge pipe 1011, and an external air supply device connected to the inner tank 2 can also be provided to blow the oatmeal powder in the inner tank 2 to the discharge pipe 1011; a connecting part 304, which is provided on the sealing cover 102, and a circumferentially distributed sawtooth bar is provided inside the connecting part 304 to crush the oatmeal. The connecting portion 304 is located between the inner liner 2 and the crushing wheel 303. The connecting portion 304 is used to divide the internal space of the inner liner 2 into an inner and outer chamber for multi-stage grinding of oatmeal. The connecting portion 304 is provided with a plurality of circumferentially distributed connecting holes 3041, which connect the inner and outer chambers of the inner liner 2. The aperture of the connecting hole 3041 is used to control the size of the ground oatmeal, so that large-grain oatmeal and small-grain oatmeal are respectively separated in the inner and outer chambers of the inner liner 2, so that each stage of grinding can focus on oatmeal particles of a specific size, thereby ensuring the uniformity of the final product. The crushing teeth 202 and the limit block 4 are both located between the connecting portion 304 and the inner liner 2.

[0022] like Figure 4 and Figure 5 As shown, it also includes: flexible blocks 5, the number of which is the same as the number of limit blocks 4, which are respectively fixed to adjacent limit blocks 4. Taking the flexible block 5 located on the upper side as an example, the front and rear sides of the upper flexible block 5 are provided with a plurality of tooth portions distributed in a straight line, and the tooth portion of the crushing tooth 202 and the tooth portion of the flexible block 5 are staggered, so that when the tooth portion of the flexible block 5 contacts with the crushing tooth 202, the tooth portion of the flexible block 5 is inserted between the two tooth portions of the crushing tooth 202, so as to wipe the crushing tooth 202.

[0023] The specific working principle is as follows: When the operator needs to use the device to grind and screen oatmeal, the operator adds oatmeal into the feed hopper 103, and the oatmeal enters the connecting part 304 through the feed hopper 103 and the sealing cover 102. At the same time, the operator turns on the motor 301 through the control terminal, and the output shaft of the motor 301 drives the crushing wheel 303 to rotate through the rotating shaft 302 and the transmission member, and the crushing wheel 303 drives the inner tank 2 to rotate, and the crushing wheel 303 rotates to crush the oatmeal in the connecting part 304, and the crushed oatmeal passes through the connecting hole 3041 enters between the inner liner 2 and the connecting part 304. During the rotation of the inner liner 2, the inner liner 2 drives all the crushing teeth 202 to rotate through all the elastic telescopic rods 201, and the crushing teeth 202 crush the oatmeal. When the oatmeal is crushed into oatmeal powder, the airflow generated by the rotation of the crushing wheel 303 carries the oatmeal powder through all the connecting holes 3041 and enters between the inner liner 2 and the connecting part 304. Finally, the airflow carries the oatmeal powder into the discharge pipe 1011, and the operator can collect the oatmeal powder discharged from the discharge pipe 1011.

[0024] In the process of the inner liner 2 driving all the crushing teeth 202 to rotate through all the elastic telescopic rods 201, when the crushing teeth 202 rotate to contact with the limit block 4, the crushing teeth 202 are squeezed by the guiding inclined surface of the limit block 4, so that the crushing teeth 202 move along the guiding inclined surface of the limit block 4, the telescopic end of the elastic telescopic rod 201 contracts, and then the crushing teeth 202 move to lose contact with the guiding inclined surface of the limit block 4, the telescopic end of the elastic telescopic rod 201 rebounds and drives the crushing teeth 202 to move, and the crushing teeth 202 impact the protruding part of the limit block 4, so that the crushing teeth 202 vibrate, and the oatmeal powder and oatmeal lumps adhered to the crushing teeth 202 are shaken off, so as to reduce the probability of the crushing teeth 202 being wrapped by the oatmeal powder and oatmeal lumps, thereby reducing the frequency of cleaning the crushing teeth 202, and then reducing the frequency of disassembly and assembly of the shell 101 and the sealing cover 102, and reducing the probability of sealing failure between the shell 101 and the sealing cover 102 due to frequent disassembly and assembly, so as to extend the service life of the device.

[0025] When the crushing tooth 202 is in contact with the limiting block 4 , the tooth portion of the flexible block 5 is inserted between the two tooth portions of the crushing tooth 202 to clean the agglomerates between the two tooth portions of the crushing tooth 202 .

[0026] After the oatmeal is ground, the operator turns off the motor 301 through the control terminal, and then opens the discharge port 1012 to discharge the remaining oatmeal lumps and particles in the inner container 2, and screens the ground oatmeal powder and agglomerated particles.

[0027] like Figure 3-Figure 6As shown, it also includes: an exhaust pipe 6, which is connected to a discharge pipe 1011. The exhaust pipe 6 is equipped with a filter for blocking the ground oatmeal powder. The discharge pipe 1011 is located at the upper part of the shell 101. The shell 101 is provided with a first chamber 601. The exhaust pipe 6 is connected to the first chamber 601. The sealing cover 102 is provided with a second chamber 602. The cross-section of the second chamber 602 is an inverted L-shape, so that the space on the right side of the second chamber 602 is larger than the space on the left side. The first chamber 601 and the second chamber 602 are commonly provided with a sealing ring 7, and the sealing ring 7 is flexible.

[0028] The specific working principle is as follows: In the process of discharging air flow and oatmeal powder through the discharge pipe 1011, a part of the air flow is discharged to the first chamber 601 through the exhaust pipe 6, and the air flow entering the first chamber 601 pushes the sealing ring 7 to move to the right, so that the right part of the sealing ring 7 enters the second chamber 602, and when the right side of the sealing ring 7 moves to contact with the sealing cover 102, the sealing ring 7 is pushed by the air flow and blocked by the sealing cover 102, and the sealing ring 7 is deformed, so that the sealing ring 7 is stuck in the larger space on the right side of the second chamber 602. In the process of grinding the oatmeal, the sealing between the shell 101 and the sealing cover 102 is enhanced to prevent the ground oatmeal powder from leaking and affecting the external environment, and after the oatmeal is ground, the sealing ring 7 rebounds and no longer deforms, and no longer strengthens the connection between the shell 101 and the sealing cover 102, so as to facilitate regular disassembly, maintenance or cleaning of the shell 101 and the sealing cover 102.

[0029] like Figure 8 As shown, it also includes: an intercepting member 8, which is slidably connected to the feed hopper 103 and is used to block the feed hopper 103. A rectangular hole is provided on the upper part of the intercepting member 8. When the intercepting member 8 moves upward, the rectangular hole of the intercepting member 8 gradually loses connection with the feed port on the feed hopper 103.

[0030] like Figure 8As shown, it also includes: a connecting rope 801, one end of which is fixedly connected to the intercepting member 8, and the other end of the connecting rope 801 is fixedly connected to a weight block 802. When the rotating shaft 302 is not rotating, the rectangular hole of the intercepting member 8 is connected to the feed port on the feed hopper 103. As the rotation speed of the rotating shaft 302 increases, the weight block 802 moves and drives the intercepting member 8 to move through the connecting rope 801, so that the connecting area between the rectangular hole of the intercepting member 8 and the feed port on the feed hopper 103 gradually decreases. A sliding column is provided at the position of the connecting rope 801 close to the rotating shaft 302. The sliding column of the connecting rope 801 slides and rotates in the rotating shaft 302. The rotating shaft 302 is fixedly connected to a fixed frame 803. The weight 802 slides in the fixed frame 803; the fixed pulley 9 is rotatably connected to the feed hopper 103, and the connecting rope 801 is wound around the fixed pulley 9. There is friction resistance between the connecting rope 801 and the fixed pulley 9, so that the connecting rope 801 drives the fixed pulley 9 to rotate when moving. The connection between the intercepting member 8 and the connecting rope 801 is located at the upper part thereof, and the position of the fixed pulley 9 is higher than that of the intercepting member 8, so that the intercepting member 8 moves from bottom to top and gradually blocks the feed port of the feed hopper 103. No matter how much oatmeal is in the feed hopper 103, after the intercepting member 8 moves upward, the intercepting member 8 can block the oatmeal in the feed hopper 103 at the first time.

[0031] like Fig. 9 As shown, it also includes: a sliding rod 10, which is slidably connected to the sealing cover 102 and the connecting part 304, and a sealing ring 1001 is fixed to the left side of the sliding rod 10. The sealing ring 1001 slides in the connecting part 304, and the width of the sealing ring 1001 is greater than the width of the connecting hole 3041. When the device is not in use, the sealing ring 1001 is used to seal the connecting hole 3041 to prevent external water vapor from entering the inner liner 2.

[0032] like Fig. 9 As shown, it also includes: a threaded telescopic rod 11, which is fixedly connected to the fixed pulley 9, and a sliding rod 10 is fixedly connected to the telescopic end of the threaded telescopic rod 11. When the intercepting member 8 moves upward, the fixed pulley 9 rotates and drives the threaded telescopic rod 11 to rotate. At this time, the telescopic end of the threaded telescopic rod 11 contracts, and the telescopic end of the threaded telescopic rod 11 is used to drive the sliding rod 10 to move, so as to adjust the area of ​​the connecting hole 3041 blocked by the blocking ring 1001.

[0033] The specific working principle is as follows: In the process of grinding oatmeal, since the feeding speed of the feed hopper 103 is uncertain and the contact frequency between the crushing teeth 202 and the oatmeal is uncertain, the accumulation amount of oatmeal in the connecting part 304 fluctuates. When the accumulation amount of oatmeal in the connecting part 304 increases, the discharge amount of oatmeal powder from the discharge pipe 1011 decreases. The operator increases the speed of the output shaft of the motor 301 through the control terminal. The output shaft of the motor 301 drives the crushing wheel 303 to rotate faster through the rotating shaft 302 and the transmission parts. The crushing wheel 303 drives the inner liner 2 to rotate faster. The inner liner 2 drives all powder through all the elastic telescopic rods 201. The crushing teeth 202 rotate, so that the rotation speed of the crushing teeth 202 is accelerated, and the contact frequency between the crushing teeth 202 and the oatmeal is increased. At the same time, the shaft 302 drives the fixed frame 803 to rotate faster, and the centrifugal force on the weight block 802 increases. The weight block 802 drives the intercepting member 8 to move a distance increased through the connecting rope 801, so that the opening amplitude of the feed hopper 103 is reduced, and the feed amount is adjusted to reduce the accumulation of large pieces of oatmeal in the connecting part 304, thereby preventing the presence of a large amount of moisture due to excessive accumulation of oatmeal in the connecting part 304, thereby avoiding a large amount of oatmeal from agglomerating and affecting the grinding effect of the oatmeal.

[0034] In the process of the connecting rope 801 driving the intercepting member 8 to move upward, the connecting rope 801 drives the fixed pulley 9 to rotate, and the fixed pulley 9 drives the threaded telescopic rod 11 to rotate, so that the telescopic end of the threaded telescopic rod 11 contracts, and the telescopic end of the threaded telescopic rod 11 drives the sliding rod 10, and the sliding rod 10 drives the blocking ring 1001 to move, and the blocking ring 1001 reduces the amount of blocking of the connecting hole 3041, so that larger sized oatmeal can pass through the connecting hole 3041, reducing the amount of oatmeal accumulated in the connecting part 304, so as to prevent the oatmeal from accumulating too much in the connecting part 304 and the presence of a large amount of moisture, thereby avoiding a large amount of oatmeal from clumping and affecting the grinding effect of the oatmeal.

[0035] When too much oatmeal lumps accumulate in the inner pot 2, the operator turns off the motor 301 through the control terminal, and then opens the discharge port 1012 to discharge and collect the oatmeal lumps in the inner pot 2, and then grinds the collected oatmeal lumps again through the above steps.

[0036] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.

Claims

1. A grinding and screening device for oatmeal processing, characterized in that: Included are: A grinding machine frame (1), the grinding machine frame (1) being fixedly connected to a shell (101), the shell (101) being provided with a discharge pipe (1011) and a discharge port (1012), a filter screen being installed in the discharge pipe (1011), the shell (101) being provided with a sealing cover (102), and the sealing cover (102) being provided with a feed hopper (103) communicating with the interior of the shell (101); An inner container (2) is rotatably connected to the shell (101); the discharge pipe (1011) and the discharge port (1012) are both in communication with the inner container (2); the inner container (2) is fixedly connected to a plurality of circumferentially distributed elastic telescopic rods (201); the telescopic ends of the elastic telescopic rods (201) are fixedly connected to crushing teeth (202); and the crushing teeth (202) are slidably connected to the inner container (2); A power assembly (3) is arranged on the grinding machine frame (1) and is used to drive the inner container (2) to rotate; The number of the limit blocks (4) is the same as the number of the crushing teeth (202) and they are distributed in the circumferential direction. They are all fixed to the sealing cover (102). The limit blocks (4) are used to guide and impact all the crushing teeth (202).

2. A grinding and screening device for oatmeal processing according to claim 1, characterized in that: The power assembly (3) comprises: A motor (301) is fixedly connected to the grinding machine frame (1), and an output shaft of the motor (301) is fixedly connected to a rotating shaft (302); A crushing wheel (303) is fixedly connected to the inner container (2), and transmission is performed between the crushing wheel (303) and the rotating shaft (302) via a transmission member; A connecting portion (304) is provided on the sealing cover (102), the connecting portion (304) is located between the inner container (2) and the crushing wheel (303), the connecting portion (304) is provided with a plurality of connecting holes (3041) distributed in a circumferential direction, and the crushing teeth (202) and the limiting block (4) are both located between the connecting portion (304) and the inner container (2).

3. The grinding and screening device for oatmeal processing according to claim 1, characterized in that: Also included are: The number of flexible blocks (5) is the same as the number of the limit blocks (4), and they are respectively fixed to adjacent limit blocks (4) and are used to wipe the crushing teeth (202).

4. The grinding and screening device for oatmeal processing according to claim 1, characterized in that: Also included are: An exhaust pipe (6) is connected to the discharge pipe (1011); a filter is installed on the exhaust pipe (6); and the discharge pipe (1011) is located at the upper part of the shell (101).

5. A grinding and screening device for oatmeal processing according to claim 4, characterized in that: The housing (101) is provided with a first chamber (601), the exhaust pipe (6) is in communication with the first chamber (601), the sealing cover (102) is provided with a second chamber (602), and a sealing ring (7) is provided in both the first chamber (601) and the second chamber (602).

6. A grinding and screening device for oatmeal processing according to claim 2, characterized in that: Also included are: An intercepting member (8) is slidably connected to the feed hopper (103) and is used to block the feed hopper (103).

7. A grinding and screening device for oatmeal processing according to claim 6, characterized in that: Also included are: A connecting rope (801) has one end fixedly connected to the intercepting member (8), and the other end of the connecting rope (801) is fixedly connected to a weight block (802). A sliding column is provided at a position of the connecting rope (801) close to the rotating shaft (302). The sliding column of the connecting rope (801) slides and rotates in the rotating shaft (302). The rotating shaft (302) is fixedly connected to a fixing frame (803), and the weight block (802) slides in the fixing frame (803); A fixed pulley (9) is rotatably connected to the feed hopper (103), and the connecting rope (801) is wound around the fixed pulley (9).

8. The grinding and screening device for oatmeal processing according to claim 7, characterized in that: The connection point between the intercepting member (8) and the connecting rope (801) is located at the upper part thereof, and the position of the fixed pulley (9) is higher than the position of the intercepting member (8).

9. A grinding and screening device for oatmeal processing according to claim 8, characterized in that: Also included are: A sliding rod (10) is slidably connected to the sealing cover (102) and the connecting portion (304); a sealing ring (1001) is fixedly connected to the sliding rod (10) at a position close to the connecting hole (3041); the sealing ring (1001) slides in the connecting portion (304); the width of the sealing ring (1001) is greater than the width of the connecting hole (3041); and the sealing ring (1001) is used to seal the connecting hole (3041).

10. The grinding and screening device for oatmeal processing according to claim 9, characterized in that: Also included are: The threaded telescopic rod (11) is fixedly connected to the fixed pulley (9), and the sliding rod (10) is fixedly connected to the telescopic end of the threaded telescopic rod (11). The telescopic end of the threaded telescopic rod (11) is used to drive the sliding rod (10) to move so as to adjust the area of ​​the connecting hole (3041) blocked by the blocking ring (1001).

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