Grain grinding device for feed production

Abstract

The invention relates to the technical field of feed processing, and provides a grain grinding device for feed production, the grain grinding device comprises a shell, a feed inlet and a discharge outlet, the feed inlet is fixedly communicated with the top of the shell, the discharge outlet is fixedly communicated with the bottom of the side wall of the shell, a grinding assembly is arranged at the top of the inner wall of the shell, and a screen is arranged at the bottom of the grinding assembly; the screen is obliquely and fixedly connected to the inner side wall of the shell, an ejection mechanism is arranged at the bottom of the inner wall of the shell, a circulating inlet and a circulating outlet are formed in the side wall of the shell, and a circulating conveying assembly is arranged on the outer wall of the shell. The ejection mechanism is arranged and comprises a plurality of ejection rods in one-to-one correspondence with the holes of the screen, the ejection rods penetrate through the holes to eject large particles clamped in the holes, the screen is prevented from being blocked, qualified particles can be conveniently output out of the grinding device through the holes of the screen, and the qualified particles are prevented from being conveyed back to the grinding assembly to be ground again; the probability that unqualified particles make contact with the grinding groove and the grinding pestle is increased, and the grinding efficiency is improved.

Description

Technical Field

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

[0002] Feed is an indispensable part of modern breeding industry. Grains are generally needed in feed production. Feed raw materials are usually large particles. In order to promote digestion and absorption of livestock, the feed raw materials need to be ground.

[0003] A feed grinding device for animal husbandry with authorization announcement number CN111408439B can drive the grinding stator to move by rotating the worm. When the grinding stator moves up and down, the gap between the grinding stator and the grinding rotor changes, so the size of the abrasive particles can be easily adjusted. The unfinished ground feed can be transported to the grinding area again for grinding through a spiral conveying pipe, thereby ensuring that the ground feed is of the same size.

[0004] However, during the operation of the grinding device, both the ground and unground feeds fall onto the surface of the sieve plate, resulting in a large amount of particles flowing on the surface of the sieve plate. When the unground large particles move on the surface of the sieve plate, the large particles will block the holes of the sieve plate, so that the small particles that fall subsequently will not be able to pass through the sieve. Therefore, the qualified particles are re-introduced into the grinding area together with the unqualified particles by the spiral conveying pipe, resulting in the qualified particles being ground again, reducing the probability of unqualified particles contacting the side wall of the grinding area, so that the grinding effect is poor. Therefore, a long time of grinding is required to grind all the feed into qualified particles, and the working efficiency is low. Summary of the invention

[0005] The invention provides a grain grinding device for feed production, aiming to solve the existing problems.

[0006] The present invention is achieved in this way. A grain grinding device for feed production includes: a shell, a feed port and a discharge port. The feed port is fixedly connected to the top of the shell, the feed port is in the shape of a square funnel, the discharge port is fixedly connected to the bottom of the shell side wall, a grinding assembly is arranged on the top of the inner wall of the shell, a screen is arranged on the bottom of the grinding assembly, the screen is fixedly connected to the inner wall of the shell at an angle, an ejection mechanism is arranged on the bottom of the inner wall of the shell, a circulation inlet is opened on the side wall of the shell at the lowest point of the top surface of the screen, a circulation outlet is opened on the side wall of the shell above the grinding assembly, and a circulation conveying assembly is arranged on the outer wall of the shell with the circulation inlet and the circulation outlet.

[0007] Preferably, the ejection mechanism includes an electric telescopic rod, a connecting plate, a plurality of ejection rods, a pair of sliding grooves and a pair of sliding blocks, the electric telescopic rod is fixedly connected to the bottom center of the inner wall of the shell, the top telescopic end of the electric telescopic rod is fixedly connected to the bottom center of the connecting plate, the top surface of the connecting plate is inclined toward the discharge port, the plurality of ejection rods are fixedly connected to the side of the connecting plate facing the screen, the non-fixed end of the ejection rod is hemispherical, the plurality of ejection rods correspond one to one with the plurality of pores of the screen in the vertical direction, the plane formed by the top ends of the plurality of ejection rods has the same inclination as the screen, a pair of sliding grooves are respectively opened on two opposite inner side walls of the shell, two sliding block pipes are connected to the two side walls of the connecting plate facing the two sliding grooves, and the ends of the two sliding blocks away from the connecting plate are respectively slidably connected in the two sliding grooves.

[0008] Preferably, when the sliding block is located at the lowest point of the sliding groove, the lowest point of the top surface of the connecting plate and the highest point of the bottom of the inner wall of the discharge port are at the same horizontal height.

[0009] Preferably, the circulating conveying assembly includes an input pipe, an output pipe, a connecting pipe, a rotating shaft, conveying blades, a partition and a conveying rotating motor. One end of the input pipe is fixedly connected to the circulation inlet, and the other end is fixedly connected to the side wall of the connecting pipe. One end of the output pipe is fixedly connected to the circulation outlet, and the other end is fixedly connected to the side wall of the connecting pipe. The conveying rotating motor is fixedly connected to the top of the inner wall of the connecting pipe. The partition is fixedly connected to the inner wall of the connecting pipe, and the horizontal height of the partition is higher than the output pipe. One end of the rotating shaft is connected to the output end of the conveying rotating motor, and the other end passes through the partition and is rotatably connected to the bottom of the inner wall of the connecting pipe. The conveying blades are fixedly connected to the side wall of the rotating shaft in a spiral ascending manner.

[0010] Preferably, the grinding assembly includes a grinding base, a grinding rotating motor, a connecting shaft, a grinding pestle and a plurality of diverter channels, the grinding base is fixedly connected to the inner wall of the shell, the top of the grinding base is concave, a grinding groove is opened at the center of the top surface of the grinding base, the grinding pestle is arranged in the grinding groove, one end of the diverter channel is fixedly connected to the top of the grinding pestle, and the other end is connected to the output end of the grinding rotating motor, the grinding rotating motor is fixedly connected to the top of the inner wall of the shell, a plurality of diverter channels are opened at the bottom of the grinding base, and the plurality of diverter channels are connected to the grinding groove.

[0011] Preferably, the plurality of diversion channels are distributed in a ring array.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The grain grinding device for feed production is provided with an ejection mechanism, including a plurality of ejection rods corresponding to the pores of the screen one by one. The plurality of ejection rods pass through the pores to eject large particles stuck in the gaps, thereby avoiding clogging of the screen and facilitating qualified particles to be output from the grinding device through the pores of the screen, thereby preventing qualified particles from being transported back to the grinding assembly for re-grinding, thereby increasing the probability of unqualified particles contacting the grinding groove and the grinding pestle, and improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 is a schematic diagram of the three-dimensional appearance of an embodiment of the present invention; Figure 2 is a front cross-sectional structural diagram of an embodiment of the present invention; Figure 3 It is a cross-sectional structural diagram of the ejection mechanism of the embodiment of the present invention when ejecting particles.

[0015] The markings in the accompanying drawings are: 1. Shell; 2. Feed inlet; 3. Discharge outlet; 4. Grinding assembly; 401. Grinding base; 402. Grinding rotating motor; 403. Connecting shaft; 404. Grinding pestle; 405. Diversion channel; 5. Screen; 6. Ejection mechanism; 601. Electric telescopic rod; 602. Connecting plate; 603. Ejection rod; 604. Sliding groove; 605. Sliding block; 7. Circulation inlet; 8. Circulation outlet; 9. Circulation conveying assembly; 901. Input pipe; 902. Output pipe; 903. Connecting pipe; 904. Rotating shaft; 905. Conveying blade; 906. Partition; 907. Conveying rotating motor. DETAILED DESCRIPTION

[0016] In order to more fully understand the technical content of the present invention, the technical solution of the present invention is further introduced and illustrated in conjunction with specific embodiments below, but is not limited thereto. The technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0017] Example 1

[0018] refer to Figure 1 to Figure 2The grain milling device for feed production comprises: a housing 1, a feed port 2, a discharge port 3, a grinding assembly 4, a screen 5, an ejection mechanism 6, a circulation inlet 7, a circulation outlet 8 and a circulation conveying assembly 9. The feed port 2 is fixedly connected to the top of the housing 1 and is in a square funnel shape, which is convenient for grains to enter the housing 1 from the feed port 2. The discharge port 3 is fixedly connected to the bottom of the side wall of the housing 1, and the ground grains are output from the discharge port 3. A grinding assembly 4 is arranged on the top of the inner wall of the housing 1, and the grinding assembly 4 is used to grind grains. A screen 5 is provided at the bottom of the grinding component 4, and the qualified grain particles fall from the pores of the screen 5, and the unqualified grain particles remain on the surface of the screen 5. The screen 5 is fixedly connected to the inner wall of the shell 1 at an angle, and an ejection mechanism 6 is provided at the bottom of the inner wall of the shell 1. The ejection mechanism 6 is used to eject the grain particles stuck in the pores of the screen 5 to avoid affecting the falling of qualified particles. The ejection mechanism 6 includes an electric telescopic rod 601, a connecting plate 602, a plurality of ejection rods 603, a pair of sliding grooves 604 and a pair of sliding blocks 605. The electric telescopic rod 601 is fixedly connected to the center of the bottom of the inner wall of the shell 1, and the top telescopic end of the electric telescopic rod 601 is fixedly connected to the center of the bottom surface of the connecting plate 602. The top surface of the connecting plate 602 is inclined toward the discharge port 3, so that the qualified grain particles can slide toward the discharge port 3. A plurality of ejection rods 603 are fixedly connected to the side of the connecting plate 602 facing the screen 5, and the non-fixed end of the ejection rod 603 is hemispherical. To avoid damaging the grain particles, the multiple ejector rods 603 correspond to the multiple pores of the screen 5 in the vertical direction, the plane formed by the tops of the multiple ejector rods 603 has the same inclination as the screen 5, a pair of sliding grooves 604 are respectively opened on the two opposite inner walls of the shell 1, two sliding blocks 605 are pipe-connected to the two side walls of the connecting plate 602 facing the two sliding grooves 604, and the ends of the two sliding blocks 605 away from the connecting plate 602 are respectively slidably connected in the two sliding grooves 604. When the sliding block 605 is located at the lowest point of the sliding groove 604, the lowest point of the top surface of the connecting plate 602 and the highest point of the bottom of the inner wall of the discharge port 3 are at the same horizontal height, the electric telescopic rod 601 is extended to push the multiple ejector rods 603 through the multiple pores of the screen 5 to push out the grain particles stuck in the pores, avoid clogging the pores, facilitate qualified particles to be output from the grinding device through the pores of the screen 5, and prevent qualified particles from being transported back to the grinding component 4 for re-grinding.A circulation inlet 7 is provided on the side wall of the shell 1 at the lowest point of the top surface of the screen 5, and a circulation outlet 8 is provided on the side wall of the shell 1 above the grinding assembly 4. A circulation conveying assembly 9 is provided on the outer wall of the shell 1 provided with the circulation inlet 7 and the circulation outlet 8. Unqualified grain particles roll down the inclined surface of the screen 5 into the circulation conveying assembly 9, and the circulation conveying assembly 9 transports the unqualified grain particles to the grinding assembly 4 for re-grinding. The circulation conveying assembly 9 includes an input pipe 901, an output pipe 902, a connecting pipe 903, a rotating shaft 904, a conveying blade 905, a partition plate 906 and a conveying rotating motor 907. One end of the input pipe 901 is fixedly connected to the circulation inlet 7, and the other end is fixedly connected to the side wall of the connecting pipe 903. One end of the output pipe 902 is fixedly connected to the circulation outlet 8. The conveying rotating motor 907 is fixedly connected to the top of the inner wall of the connecting pipe 903, the partition 906 is fixedly connected to the inner wall of the connecting pipe 903, and the horizontal height of the partition 906 is higher than the output pipe 902, one end of the rotating shaft 904 is connected to the output end of the conveying rotating motor 907, and the other end passes through the partition 906 and is rotatably connected to the bottom of the inner wall of the connecting pipe 903, the conveying blade 905 is fixedly connected to the side wall of the rotating shaft 904 in a spiral ascending manner, unqualified grain particles enter the connecting pipe 903 from the input pipe 901, and the rotating shaft 904 drives the conveying blade 905 to rotate, and the unqualified grain particles are transported to the top of the connecting pipe 903, and enter the shell 1 from the output pipe 902 and the circulation outlet 8.

[0019] Example 2

[0020] refer to Figure 3 , which is different from Example 1, is that the grinding assembly 4 of the grain milling device for feed production includes: a grinding base 401, a grinding rotary motor 402, a connecting shaft 403, a grinding pestle 404 and a plurality of diverter channels 405, the grinding base 401 is fixedly connected to the inner wall of the shell 1, the top of the grinding base 401 is concave, a grinding groove is provided at the center of the top surface of the grinding base 401, the grinding pestle 404 is arranged in the grinding groove, the grinding pestle 404 grinds the grains falling into the grinding groove, one end of the diverter channel 405 is fixedly connected to the top of the grinding pestle 404, and the other end is connected to the output end of the grinding rotary motor 402, the grinding rotary motor 402 is fixedly connected to the top of the inner wall of the shell 1, a plurality of diverter channels 405 are provided at the bottom of the grinding base 401, and the plurality of diverter channels 405 are connected to the grinding groove, the plurality of diverter channels 405 are distributed in a ring array, and the ground grain particles are diverted by the plurality of diverter channels 405 to avoid accumulation of grain particles.

[0021] The working principle of the present invention is as follows: grains are added into the housing 1 from the feed port 2, the grains fall into the grinding tank, the grinding rotating motor 402 is started, the grinding rotating motor 402 drives the connecting shaft 403 to rotate, the connecting shaft 403 drives the grinding pestle 404 to rotate, the grinding pestle 404 grinds the grains in the grinding tank, the ground grain particles fall evenly along the multiple diversion channels 405 and are distributed on the surface of the screen 5, the ground grain particles pass through the multiple pores of the screen 5 and fall to the surface of the ejection mechanism 6, and roll along the slope of the ejection mechanism 6. The grain particles that fail to meet the requirements of grinding roll to the bottom along the inclined surface of the screen 5, enter the connecting pipe 903 from the circulation inlet 7 and the input pipe 901, start the conveying rotating motor 907, and the conveying rotating motor 907 drives the rotating shaft 904 to rotate, and the rotating shaft 904 drives the conveying blade 905 to rotate, so that the unqualified grain particles at the bottom of the connecting pipe 903 are conveyed to the top, and return to the housing 1 from the output pipe 902 and the circulation outlet 8, and fall into the grinding groove again for grinding until the grinding is qualified. When unqualified particles are stuck in the pores of the screen 5, the electric telescopic rod 601 is started, and the electric telescopic rod 601 is extended to push the connecting plate 602, driving multiple ejector rods 603 to move toward the screen 5. At this time, a pair of sliding blocks 605 slide along a pair of sliding grooves 604 until the ejector rod 603 passes through the pores to eject the stuck particles, so as to avoid large particles blocking the pores for a long time and causing repeated grinding of qualified particles, thereby improving the grinding efficiency.

[0022] The embodiments described above are only part of the embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any ordinary technician in the field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A grain grinding device for feed production, characterized in that: The grain grinding device for feed production comprises: a shell (1), a feed inlet (2) and a discharge outlet (3); the feed inlet (2) is fixedly connected to the top of the shell (1); the feed inlet (2) is in a square funnel shape; the discharge outlet (3) is fixedly connected to the bottom of the side wall of the shell (1); a grinding assembly (4) is arranged at the top of the inner wall of the shell (1); a screen (5) is arranged at the bottom of the grinding assembly (4); the screen (5) is fixedly connected to the inner wall of the shell (1) in an inclined manner; an ejection mechanism (6) is arranged at the bottom of the inner wall of the shell (1); a circulation inlet (7) is opened on the side wall of the shell (1) at the lowest point of the top surface of the screen (5); a circulation outlet (8) is opened on the side wall of the shell (1) above the grinding assembly (4); and a circulation conveying assembly (9) is arranged on the outer wall of the shell (1) where the circulation inlet (7) and the circulation outlet (8) are arranged.

2. The grain milling device for feed production according to claim 1, characterized in that: The ejection mechanism (6) comprises an electric telescopic rod (601), a connecting plate (602), a plurality of ejection rods (603), a pair of sliding grooves (604) and a pair of sliding blocks (605), the electric telescopic rod (601) being fixedly connected to the center of the bottom of the inner wall of the housing (1), the top telescopic end of the electric telescopic rod (601) being fixedly connected to the center of the bottom surface of the connecting plate (602), the top surface of the connecting plate (602) being inclined toward the discharge port (3), the plurality of ejection rods (603) being fixedly connected to a side of the connecting plate (602) facing the screen (5), and the ejection rods (60 The non-fixed end of the housing (3) is hemispherical, the plurality of ejector rods (603) correspond one to one with the plurality of pores of the screen (5) in the vertical direction, the plane formed by the top ends of the plurality of ejector rods (603) has the same inclination as the screen (5), a pair of sliding grooves (604) are respectively provided on two opposite inner side walls of the housing (1), two sliding blocks (605) are pipe-connected to the two side walls of the connecting plate (602) facing the two sliding grooves (604), and the ends of the two sliding blocks (605) away from the connecting plate (602) are respectively slidably connected in the two sliding grooves (604).

3. The grain milling device for feed production according to claim 2, characterized in that: When the sliding block (605) is located at the lowest point of the sliding groove (604), the lowest point of the top surface of the connecting plate (602) and the highest point of the bottom of the inner wall of the discharge port (3) are located at the same horizontal height.

4. The grain milling device for feed production according to claim 1, characterized in that: The circulating conveying assembly (9) comprises an input pipe (901), an output pipe (902), a connecting pipe (903), a rotating shaft (904), a conveying blade (905), a partition (906) and a conveying rotating motor (907); one end of the input pipe (901) is fixedly connected to the circulating inlet (7), and the other end is fixedly connected to the side wall of the connecting pipe (903); one end of the output pipe (902) is fixedly connected to the circulating outlet (8), and the other end is fixedly connected to the side wall of the connecting pipe (903); The rotating motor (907) is fixedly connected to the top of the inner wall of the connecting tube (903), the partition (906) is fixedly connected to the inner side wall of the connecting tube (903), and the horizontal height of the partition (906) is higher than the output tube (902). One end of the rotating shaft (904) is connected to the output end of the conveying rotating motor (907), and the other end passes through the partition (906) and is rotatably connected to the bottom of the inner wall of the connecting tube (903). The conveying blade (905) is fixedly connected to the side wall of the rotating shaft (904) in a spiral ascending manner.

5. The grain milling device for feed production according to claim 1, characterized in that: The grinding assembly (4) comprises a grinding base (401), a grinding rotary motor (402), a connecting shaft (403), a grinding pestle (404) and a plurality of flow diversion channels (405); the grinding base (401) is fixedly connected to the inner wall of the housing (1); the top of the grinding base (401) is concave; a grinding groove is provided at the centre of the top surface of the grinding base (401); the grinding pestle (404) is arranged in the grinding groove; one end of the flow diversion channel (405) is fixedly connected to the top of the grinding pestle (404) and the other end is connected to the output end of the grinding rotary motor (402); the grinding rotary motor (402) is fixedly connected to the top of the inner wall of the housing (1); the plurality of flow diversion channels (405) are provided at the bottom of the grinding base (401), and the plurality of flow diversion channels (405) are in communication with the grinding groove.

6. The grain milling device for feed production according to claim 5, characterized in that The plurality of diversion channels (405) are distributed in a ring array.

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