Double-motor rice huller

Abstract

The invention relates to the technical field of rice huller design, and discloses a double-motor rice huller which comprises a machine body, a feeding hopper, two rubber rollers, a discharging plate arranged in the feeding hopper and used for conveying rice towards the position between the two rubber rollers, a rice husk separation box located on the lower side of the machine body and a draught fan arranged in the rice husk separation box. A vibrating motor is arranged on the lower side of the feeding hopper, a screening plate is arranged on the side, close to the upper end of the discharging plate, of the feeding hopper, a collecting hopper for large-particle stones to fall into is arranged at the position, corresponding to the screening plate, of the side edge of the feeding hopper, and a plurality of screening holes allowing rice to penetrate through and used for screening out the large-particle stones are formed in the screening plate. The side, facing the collecting hopper, of each sieve hole is provided with an opening, a rotating shaft located above the screening plate is rotationally connected into the feeding hopper, a driving motor connected with the end of the rotating shaft is fixed to the outer wall of the feeding hopper, and rotating arms used for penetrating through the sieve holes to drive large-particle stones to enter the collecting hopper are arranged at the positions, corresponding to the sieve holes, of the rotating shaft.

Description

Technical Field

[0001] The invention belongs to the technical field of rice husker design, and in particular relates to a double-motor rice husker. Background Art

[0002] Rice huller is a grain processing machine that removes the husk of rice and makes brown rice. It can remove the outer shell of rice, reduce the cracking of rice grains and the damage of the skin, and keep the brown rice intact as much as possible.

[0003] At present, a Chinese patent with publication number CN115532343A and publication date December 30, 2022 discloses a rice husking machine that helps to efficiently separate rice husks, including a machine body, a feed hopper, a rubber roller, and a discharge port, and also includes a rice husk separation box located on the lower side of the machine body and communicated with the discharge port, a first material guide mixing plate for brown rice and rice husks in the discharge port to fall is provided on the upper side of the rice husk separation box, a material receiving plate located on the lower side of the first material guide mixing plate and extending in a horizontal direction is provided in the rice husk separation box, a bidirectional screw conveying rod located in the material receiving plate is rotatably connected in the rice husk separation box, and material dropping holes are provided in the middle and both ends of the material receiving plate, a fan is also provided in the rice husk separation box, a second collecting trough for collecting rice husks is provided in the rice husk separation box and on the side of the fan away from the first collecting trough, a second screw conveying rod is rotatably connected in the rice husk separation box and located in the second collecting trough, and a rice husk discharge port is provided on the side wall of the rice husk separation box and at the end of the second screw conveying rod.

[0004] The rice husker separates the brown rice from the rice husk by squeezing and rubbing two rubber rollers together. The rice is put into a feed hopper, passes through the feed hopper and enters the position between the two rubber rollers. A large amount of rice may contain large-grained stone impurities, and the stone itself is relatively hard. Therefore, the stone that enters between the two rubber rollers may cause damage to the surface of the rubber rollers. At the same time, the stone mixed in the finished brown rice will also affect the quality of the brown rice. Summary of the invention

[0005] The invention aims to provide a dual-motor rice husker which can effectively remove large-grain stone impurities mixed in rice.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a dual-motor rice husker, comprising a machine body, a feed hopper located on the upper side of the machine body, two rubber rollers rotatably connected to the machine body, a discharge plate arranged in the feed hopper and used to transfer rice toward between the two rubber rollers, a husk separation box located on the lower side of the machine body, and a fan arranged in the husk separation box, wherein a feeding hopper is arranged in the feed hopper, a vibration motor is arranged on the lower side of the feeding hopper, a screening plate is arranged on one side of the feeding hopper close to the upper end of the discharge plate, and the A collecting bucket for large-particle stones to fall into is arranged at the side of the feed hopper and at the position corresponding to the screening plate. The screening plate is provided with a plurality of sieve holes for rice to pass through and for screening out large-particle stones. The sieve holes are open to one side of the collecting bucket. A rotating shaft located above the screening plate is rotatably connected in the feed hopper. A driving motor connected to the end of the rotating shaft is fixed on the outer wall of the feed hopper. A rotating arm for driving large-particle stones into the collecting bucket after passing through the sieve holes is arranged on the rotating shaft and at the position corresponding to each sieve hole.

[0007] By adopting the above technical scheme, when rice is put into the feed hopper, the rice will first fall into the feeding hopper, and the vibration motor on the lower side of the feeding hopper can help to transport the rice toward the side of the screening plate, wherein the multiple sieve holes on the screening plate are utilized, and the sieve holes can allow the rice to pass through and fall into the discharge plate, while the large-grained stones in the rice can remain on the screening plate, and then the driving motor is utilized to drive the rotating shaft to rotate, and the rotating shaft can drive multiple rotating arms to pass through the multiple sieve holes respectively, so that the large-grained stones screened out on the screening plate are pushed into the collecting hopper by the thrust of the rotating arms, and finally the large-grained stone impurities mixed in the rice can be effectively removed.

[0008] The present invention is further configured as follows: a material receiving plate is arranged in the collecting bucket, a vertical rod is arranged in the collecting bucket and at the lower side of the material receiving plate, a hinge seat is arranged at the upper end of the vertical rod for hingedly connecting one side of the material receiving plate, a guide sleeve is fixed in the collecting bucket for the vertical rod to pass through, the upper end sleeve of the vertical rod is provided with a connecting spring connected to the hinge seat at the upper end and connected to the guide sleeve at the lower end, a support block is arranged on the inner wall of the collecting bucket for supporting the material receiving plate in a horizontal position, a gear lever is arranged in the collecting bucket and at a position above the material receiving plate for the material receiving plate to flip and tilt downward after being contacted, and an air supply component for supplying air to the lower end of the collecting bucket is arranged on the husk separation box.

[0009] By adopting the above technical solution, a receiving plate is used in the collecting bucket to receive the falling large-grained stones and a small portion of rice particles that fall in with the large-grained stones. After the collecting bucket has collected for a period of time, an air supply assembly is used to supply air to the lower end of the collecting bucket. Then the airflow can push the receiving plate upward, and the vertical rod moves along the guide sleeve until the receiving plate contacts the stop rod. Then the receiving plate can be flipped and tilted downward, so that the large-grained stones and rice particles received on the receiving plate fall out.

[0010] The present invention is further configured as follows: the support block is triangular in shape, and when the receiving plate is in a downward flipped and tilted state under the action of the upward blowing airflow, a falling channel for large-grained stones and rice to fall is formed between the support block and the lower end of the receiving plate, and a reflux channel for rice to rise is formed between the upper end of the receiving plate and the inner wall of the collecting bucket.

[0011] By adopting the above technical scheme, when the receiving plate is in a downward flipped and tilted state, a falling channel for large-grained stones and rice to fall can be formed between the support block and the lower end of the receiving plate. Since rice is relatively light and the flow rate of gas through the hole is inversely proportional to the size of the hole, the high-velocity airflow generated in the reflux channel can transport the rice particles contained in multiple stone particles toward the reflux channel. Then the rice particles can flow back into the feeding hopper and then stably fall into the unloading plate. Finally, the large-grained stones and a small part of the mixed rice particles on the receiving plate can be separated, thereby avoiding the waste of rice particles.

[0012] The present invention is further configured as follows: the air supply assembly includes a drainage pipe whose lower end is connected to the chaff separation box and whose upper end is used to connect to the lower end of the collecting bucket, a guide plate arranged on the inner wall of the chaff separation box and used to introduce a part of the wind force of the fan into the drainage pipe, and a mesh drawer for collecting large-grained stones and which is open on the upper side and closed on the lower side is arranged in the lower part of the drainage pipe.

[0013] By adopting the above technical scheme, when the fan in the husk separation box uses wind force to separate husks, a part of the airflow can be gathered into the drainage pipe through the guide plate, and the airflow can be introduced into the collecting bucket through the drainage pipe, thereby realizing multiple utilization of the fan in the husk separation box, and at the same time, the large-grained stones falling from the lower end of the collecting bucket can fall into the mesh drawer at the bottom of the drainage pipe, and the large-grained stones screened out can be collected through the mesh drawer, and because the mesh drawer is close to the ground, it is convenient for the operator to quickly extract and clean the large-grained stones.

[0014] The present invention is further configured as follows: a dust box is provided on the upper side of the feed hopper, a filter plate is provided on the upper side of the dust box, a first inclined plate is provided in the dust box, a second inclined plate is provided in the dust box and located below the first inclined plate, an air supply pipe is provided on the lower side of the feed hopper for supplying air vertically toward the dust box in the feed hopper after docking with the upper end of the drainage pipe, and a switching component for cutting the docking position of the upper end of the drainage pipe is provided between the machine body and the drainage pipe.

[0015] By adopting the above technical solution, when the collection hopper is still in the collection stage, the upper end of the drainage pipe is connected to the air supply pipe by using the switching assembly. At this time, the rising airflow in the drainage pipe can enter the feed hopper along the air supply pipe, and the dust generated by the rice transmission in the hopper can be brought into the vertically rising airflow, so that the dust passes through the first inclined plate and the second inclined plate and then enters the dust collecting box, and then the dust is filtered by the filter mesh plate, and the dust can be collected through the dust collecting box.

[0016] The present invention is further configured as follows: the switching component includes a corrugated pipe whose upper end is connected to the lower end of the drainage pipe and whose lower end is connected to the chaff separation box, a return spring connected to the machine body at one end and to the drainage pipe at the other end, an iron block arranged on the drainage pipe, a magnet column arranged on the machine body and used to attract the iron block, a shielding iron plate arranged between the iron block and the magnet column and used to shield the magnetic attraction of the magnet column to the iron block, and a driving member arranged on the feed hopper and used to drive the shielding iron plate to move up and down; when the shielding iron plate is embedded in the position between the magnet column and the iron block, gaps are left between the shielding iron plate and the magnet column, and between the shielding iron plate and the iron block.

[0017] By adopting the above technical scheme, when the driving member drives the shielding iron plate to move up so that the shielding iron plate is moved away from the position between the magnet column and the iron block, the magnetic attraction of the magnet column to the iron block is utilized to drive the drainage tube to swing toward the side close to the machine body and then dock with the air supply tube. At the same time, due to the existence of the reset spring, the magnet column cannot fit with the iron block. When the driving member drives the shielding iron plate to move down so that the shielding iron plate is located between the magnet column and the iron block, since there are gaps between the shielding iron plate and the magnet column and between the shielding iron plate and the iron block, the shielding iron plate can shield the magnetic attraction of the magnet column to the iron block. Subsequently, under the action of the elastic restoring force of the reset spring, the drainage tube can swing toward the side away from the machine body and then dock with the collecting bucket. Finally, the switching of the docking position of the drainage tube can be completed by moving the shielding iron plate up and down.

[0018] The present invention is further configured as follows: the driving member includes a half gear arranged at the end of the rotating shaft, a vertical rod whose lower end is connected to the shielding iron plate and extends in a vertical upward direction, a rack arranged on the vertical rod and used to engage the half gear, a first guide sleeve arranged on the upper side of the feed hopper and through which the vertical rod passes, and a second guide sleeve arranged on the lower side of the feed hopper and through which the vertical rod passes.

[0019] By adopting the above technical solution, when the driving motor drives the rotating shaft and the rotating arm to rotate, the driving motor will also drive the half gear to rotate. When the half gear rotates to a position engaged with the rack, it can drive the rack and the vertical rod to move upward, thereby driving the shielding iron plate to move upward. When the half gear rotates to a position disengaged from the rack, the rack and the vertical rod can be loosened. Under the action of the vertical rod's own gravity, the vertical rod and the shielding iron plate can move downward until the shielding iron plate moves down between the magnet column and the iron block.

[0020] The present invention is further configured as follows: a connecting airbag ring is provided between the dust collecting box and the filter screen plate, and a rapping ball is provided at the upper end of the vertical rod for impacting the connecting airbag ring in an inflated state after the vertical rod moves to an extreme position.

[0021] By adopting the above technical scheme, when the vertical rod moves downward under the action of its own gravity until the shielding iron plate moves down to between the magnet column and the iron block, the vibrating ball will abut against the first guide sleeve, and the first guide sleeve can be used to locate the extreme downward position of the vertical rod; when the vertical rod drives the vibrating ball to move upward, the vibrating ball can hit the connecting airbag ring in an inflated state, and the impact force of the vibrating ball can vibrate the filter screen connected to the connecting airbag ring, thereby shaking off the dust blocked in the mesh of the filter screen, and finally the surface of the filter screen can be cleaned in the process of the vertical rod moving upward.

[0022] The present invention is further configured as follows: a first motor connected to the end of the rubber roller on one side is arranged on the machine body, and a second motor connected to the end of the rubber roller on the other side is also arranged on the machine body.

[0023] By adopting the above technical solution, the two rubber rollers are driven separately by the first motor and the second motor respectively, which is conducive to keeping the linear speed difference and the linear speed sum of the two rubber rollers basically unchanged during the rotation of the two rubber rollers, thereby ensuring a good and unchanged rice husking effect.

[0024] The beneficial effects of the present invention are as follows: when rice is put into the feed hopper, the rice will first fall into the feeding hopper, and the vibrating motor at the lower side of the feeding hopper can help the rice to be transported toward one side of the screening plate, wherein the multiple sieve holes provided on the screening plate can be used for the rice to pass through the sieve holes and then fall into the unloading plate, and the large-grained stones in the rice can be left on the screening plate, and then the driving motor is used to drive the rotating shaft to rotate, and the rotating shaft can drive the multiple rotating arms to pass through the multiple sieve holes respectively, so that the large-grained stones screened on the screening plate are pushed into the collecting hopper by the thrust of the rotating arms, and the collecting hopper uses the receiving plate to receive the falling large-grained stones and a small part of the rice particles that fall in with the large-grained stones;

[0025] When the driving motor drives the half gear to rotate to the position disengaged from the rack, the half gear can loosen the rack and the vertical rod. Under the action of the vertical rod's own gravity, the vertical rod and the shielding iron plate can move down until the shielding iron plate moves down to between the magnet column and the iron block and the vibrating ball contacts the first guide sleeve. At this time, since there are gaps between the shielding iron plate and the magnet column and between the shielding iron plate and the iron block, the shielding iron plate can shield the magnetic attraction of the magnet column to the iron block. Subsequently, under the action of the elastic restoring force of the reset spring, the drainage tube can swing toward the side away from the machine body and dock with the collecting bucket; subsequently, the airflow in the chaff separation box can push the receiving plate to move up, and the vertical rod moves along the guide sleeve until the receiving plate contacts the gear rod, and then the receiving plate is The hopper can be tilted downward to allow the large-grained stones and rice grains received on the receiving plate to fall out; a falling channel for the large-grained stones and rice grains to fall can be formed between the support block and the lower end of the receiving plate, and because the rice grains are relatively light and the flow rate of the gas through the hole is inversely proportional to the size of the hole, the high-velocity airflow generated in the reflux channel can transport the rice grains contained in the multiple stone grains toward the reflux channel, and then the rice grains can flow back into the feeding hopper and fall stably into the unloading plate, while the large-grained stones fall into the mesh drawer, and the screened large-grained stones can be collected through the mesh drawer, and finally the large-grained stones on the receiving plate and the small part of the mixed rice grains can be separated, thereby avoiding the waste of rice grains;

[0026] At the same time, when the driving motor drives the half gear to rotate to the position meshing with the rack, the half gear can drive the rack and the vertical rod to move upward, thereby driving the shielding iron plate to move upward, so that the shielding iron plate is moved away from the position between the magnet column and the iron block, and the magnetic attraction of the magnet column to the iron block is utilized to drive the drainage pipe to swing toward the side close to the machine body and then dock with the air supply pipe. At the same time, due to the presence of the reset spring, the magnet column cannot fit with the iron block; at this time, the rising airflow in the drainage pipe can enter the feed hopper along the air supply pipe, and the material can be brought in by the vertically rising airflow The dust generated in the bucket due to the transmission of rice makes the dust pass through the first inclined plate and the second inclined plate and then enter the dust collecting box, and then the dust is filtered by the filter screen plate, and the dust can be collected by the dust collecting box; when the vertical rod drives the vibrating ball to move upward, the vibrating ball can hit the connecting air bag ring in the inflated state, and the impact force of the vibrating ball can vibrate the filter screen plate connected to the connecting air bag ring, thereby shaking off the dust blocked in the mesh of the filter screen plate, and finally the surface of the filter screen plate can be cleaned in the process of the vertical rod moving upward. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a partial structural cross-sectional view of the present invention;

[0030] Figure 3 It is a cross-sectional view of the structure inside the feed hopper of the present invention;

[0031] Figure 4 It is an enlarged view of the connection relationship between the rotating shaft, the rotating arm, the feeding hopper, the screening plate and the collecting hopper in the present invention;

[0032] Figure 5 It is a partial structural cross-sectional view of the collecting bucket at the position of the receiving plate in the present invention;

[0033] Figure 6 It is a partial structural cross-sectional view of the collecting bucket at the position of the receiving plate in the present invention, at which time the receiving plate is in a downwardly flipped and tilted state;

[0034] Figure 7 This is a structural plan view of the present invention, in which the shielding iron plate is moved down between the magnet column and the iron block;

[0035] Figure 8 It is a structural plan view of the present invention, when the shielding iron plate is moved away from the position between the magnet column and the iron block.

[0036] In the figure, 1, machine body; 11, rubber roller; 12, first motor; 13, second motor; 2, feed hopper; 21, unloading plate; 22, rotating shaft; 221, rotating arm; 23, driving motor; 24, air supply pipe; 3, husk separation box; 31, fan; 4, feeding hopper; 41, vibration motor; 42, screening plate; 421, sieve hole; 5, collecting hopper; 51, receiving plate; 52, vertical rod; 521, hinge seat; 522, connecting spring; 53, guide sleeve; 54, support block; 55, gear lever; 56, falling channel ; 57, reflux channel; 6, air supply assembly; 61, drainage pipe; 611, mesh drawer; 62, guide plate; 7, dust box; 71, filter screen; 72, first inclined plate; 73, second inclined plate; 74, connecting air bag ring; 8, switching assembly; 81, bellows; 82, reset spring; 83, iron block; 84, magnet column; 85, shielding iron plate; 86, driving part; 861, half gear; 862, vertical rod; 8621, vibrating ball; 863, rack; 864, first guide sleeve; 865, second guide sleeve. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments are described clearly and completely below. 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.

[0038] A double motor rice husker, referring to Figure 1 , Figure 2 The dual-motor rice husking machine includes a machine body 1, a feed hopper 2, two rubber rollers 11, a feed plate 21, a husk separation box 3, and a fan 31, wherein the feed hopper 2 is fixed to the upper side of the machine body 1 by bolts, and the feed hopper 2 can be used for rice to enter, and the two rubber rollers 11 are rotatably connected to the machine body 1 through bearings, and at the same time, a first motor 12 connected to the end of the rubber roller 11 on one side is fixed to the machine body 1 by bolts, and a second motor 13 connected to the end of the rubber roller 11 on the other side is also fixed to the machine body 1 by bolts; wherein the feed plate 21 is fixed to the feed hopper 2 by bolts and is used to transmit rice toward between the two rubber rollers 11, and the husk separation box 3 is installed on the lower side of the machine body 1 and is used to separate brown rice and husk, and at the same time, the fan 31 is installed in the husk separation box 3 by bolts, and the fan 31 provides the husk separation box 3 with airflow for separating brown rice and husk.

[0039] Reference Figure 1 , Figure 3 , Figure 4A feeding hopper 4 is also installed in the feed hopper 2 by bolts, and a vibration motor 41 is installed on the lower side of the feed hopper 4 by bolts, wherein a screening plate 42 is integrally provided on one side of the feed hopper 4 close to the upper end of the unloading plate 21, and a collecting hopper 5 is fixed by bolts at the side of the feed hopper 2 and at the position corresponding to the screening plate 42, which is communicated with the feed hopper 2 and for large particles of stones to fall into, and a plurality of sieve holes 421 for rice to pass through and for screening out large particles of stones are provided in the screening plate 42, and the screening The hole 421 opens toward one side of the collecting hopper 5; wherein a rotating shaft 22 located above the screening plate 42 is rotatably connected in the feed hopper 2 through a bearing, and a driving motor 23 connected to the end of the rotating shaft 22 is fixed on the outer wall of the feed hopper 2 by bolts, and the driving motor 23 rotates slowly, and at the same time, a rotating arm 221 is welded on the rotating shaft 22 and at the position corresponding to each sieve hole 421, and the rotating arm 221 can be used to drive large particles of stone into the collecting hopper 5 after passing through the sieve hole 421.

[0040] Reference Figure 3 , Figure 5 , Figure 6 , a receiving plate 51 is also provided in the collecting bucket 5, and a vertical rod 52 is provided in the collecting bucket 5 and located at the lower side of the receiving plate 51, wherein the upper end of the vertical rod 52 is integrally provided with a hinge seat 521 for hingedly connecting one side of the receiving plate 51, and the hinge seat 521 and the receiving plate 51 are hinged with a damping, and a guide sleeve 53 for the vertical rod 52 to pass through is welded in the collecting bucket 5, and the upper end of the vertical rod 52 is sleeved with a connecting spring 522, the upper end of which is welded to the hinge seat 521 and the lower end is welded to the guide sleeve 53, and the inner wall of the collecting bucket 5 is welded with a connecting spring 522. There is a support block 54 for supporting the receiving plate 51 in a horizontal position, and a stop rod 55 for the receiving plate 51 to flip and tilt downward after being abutted is welded in the collecting bucket 5 and located above the receiving plate 51. The support block 54 is triangular. When the receiving plate 51 is in a downward flipped and tilted state under the action of the upward blowing airflow, a falling channel 56 for large particles of stone and rice to fall is formed between the support block 54 and the lower end of the receiving plate 51, and a reflux channel 57 for rice to rise is formed between the upper end of the receiving plate 51 and the inner wall of the collecting bucket 5.

[0041] Reference Figure 2 , Figure 7 The husk separation box 3 is also provided with an air supply assembly 6 for supplying air to the lower end of the collecting bucket 5. The air supply assembly 6 includes a drainage pipe 61 and a guide plate 62, wherein the lower end of the drainage pipe 61 is connected to the husk separation box 3 and the upper end is used to dock with the lower end of the collecting bucket 5, and the guide plate 62 is fixed to the inner wall of the husk separation box 3 by bolts and is used to introduce a part of the wind force of the fan 31 into the drainage pipe 61; at the same time, the lower part of the drainage pipe 61 is also slidably connected with a mesh drawer 611 for collecting large-grained stones and having an upper side open and a lower side closed.

[0042] Reference Figure 1 , Figure 3 , Figure 7 , Figure 8 A dust box 7 is also fixed to the upper side of the feed hopper 2 by bolts, and a filter screen plate 71 is provided on the upper side of the dust box 7, and a connecting airbag ring 74 is bonded and fixed between the dust box 7 and the filter screen plate 71, wherein a first inclined plate 72 is welded in the dust box 7, and a second inclined plate 73 is welded in the dust box 7 and located at the lower side of the first inclined plate 72, and at the same time, an air supply pipe 24 for supplying air vertically toward the dust box 7 in the feed hopper 2 after docking with the upper end of the drainage pipe 61 is fixed to the lower side of the feed hopper 2 by bolts, and a switching component 8 for cutting the docking position of the upper end of the drainage pipe 61 is provided between the machine body 1 and the drainage pipe 61, and the switching component 8 includes a bellows 81, a return spring 82, an iron block 83, a magnet column 84, a shielding iron plate 85, and a driving member 86. , wherein the upper end of the bellows 81 is connected to the lower end of the drainage pipe 61 and the lower end is connected to the husk separation box 3, and the return spring 82 is fixedly connected to the body 1 at one end and fixedly connected to the drainage pipe 61 at the other end. When the return spring 82 is in a natural state, the drainage pipe 61 is docked with the collecting bucket 5, and the iron block 83 is welded to the outer wall of the drainage pipe 61, and the magnet column 84 is fixed to the body 1 by bolts and is used to attract the iron block 83. The shielding iron plate 85 is arranged between the iron block 83 and the magnet column 84 and is used to shield the magnetic attraction of the magnet column 84 to the iron block 83. When the shielding iron plate 85 is embedded in the position between the magnet column 84 and the iron block 83, there are gaps between the shielding iron plate 85 and the magnet column 84, and between the shielding iron plate 85 and the iron block 83.

[0043] Reference Figure 4 , Figure 7 , Figure 8 , the driving member 86 is arranged on the feed hopper 2 and is used to drive the shielding iron plate 85 to move up and down. The driving member 86 includes a half gear 861, a vertical rod 862, a rack 863, a first guide sleeve 864, and a second guide sleeve 865, wherein the half gear 861 is welded on the rotating shaft 22, and the lower end of the vertical rod 862 is welded and fixed to the shielding iron plate 85 and extends in the vertical upward direction, while the rack 863 is integrally arranged on the vertical rod 862 and is used to mesh with the half gear 861, and the first guide sleeve 864 is welded on the upper side of the feed hopper 2 and the vertical rod 862 passes through, wherein the second guide sleeve 865 is welded on the lower side of the feed hopper 2 and the vertical rod 862 passes through; at the same time, a rapping ball 8621 is welded on the upper end of the vertical rod 862, and the rapping ball 8621 can be used to impact the connecting airbag ring 74 in a bulging state after the vertical rod 862 moves to the extreme position.

[0044] Principle: When rice is put into the feed hopper 2, the rice will first fall into the feeding hopper 4, and the vibration motor 41 on the lower side of the feeding hopper 4 can help the rice to be transported toward the side of the screening plate 42, wherein the multiple sieve holes 421 provided on the screening plate 42 are utilized, and the sieve holes 421 can allow the rice to pass through and fall into the unloading plate 21, and the large grains of stone in the rice can be left on the screening plate 42, and then the driving motor 23 is used to drive the rotating shaft 22 to rotate, and the rotating shaft 22 can drive the multiple rotating arms 221 to pass through the multiple sieve holes 421 respectively, so that the large grains of stone screened out from the screening plate 42 are pushed into the collecting hopper 5 by the thrust of the rotating arms 221, and the collecting hopper 5 uses the receiving plate 51 to receive the falling large grains of stone and a small part of the rice grains that follow the large grains of stone to fall into;

[0045] When the driving motor 23 drives the half gear 861 to rotate to a position disengaged from the rack 863, the half gear 861 can loosen the rack 863 and the vertical rod 862. Under the action of the vertical rod 862's own gravity, the vertical rod 862 and the shielding iron plate 85 can move down until the shielding iron plate 85 moves down to between the magnet column 84 and the iron block 83 and the vibrating ball 8621 contacts the first guide sleeve 864. At this time, since there are gaps between the shielding iron plate 85 and the magnet column 84 and between the shielding iron plate 85 and the iron block 83, the shielding iron plate 85 can shield the magnetic attraction of the magnet column 84 on the iron block 83. Subsequently, under the action of the elastic restoring force of the reset spring 82, the drainage tube 61 can swing toward the side away from the machine body 1 and dock with the collecting bucket 5. Subsequently, the airflow in the chaff separation box 3 can push the receiving plate 51 to move up, and the vertical rod 52 moves along the guide sleeve 53. The receiving plate 51 is tilted downward until it contacts the stop bar 55, and the receiving plate 51 can be tilted downward so that the large-grained stones and rice particles received on the receiving plate 51 fall out; a falling channel 56 for the large-grained stones and rice particles to fall can be formed between the support block 54 and the lower end of the receiving plate 51, and since the rice is relatively light and the flow rate of the gas through the hole is inversely proportional to the size of the hole, the high-velocity airflow generated in the reflux channel 57 can transport the rice particles contained in the plurality of stone particles toward the reflux channel 57, and then the rice particles can flow back into the feeding hopper 4 and stably fall into the unloading plate 21, while the large-grained stones fall into the mesh drawer 611, and the large-grained stones screened out can be stored by the mesh drawer 611, and finally the large-grained stones on the receiving plate 51 can be separated from the small portion of the mixed rice particles, thereby avoiding the waste of rice particles;

[0046] At the same time, when the driving motor 23 drives the half gear 861 to rotate to the position meshing with the rack 863, the half gear 861 can drive the rack 863 and the vertical rod 862 to move upward, thereby driving the shielding iron plate 85 to move upward, so that the shielding iron plate 85 is moved away from the position between the magnet column 84 and the iron block 83, and the magnetic attraction of the magnet column 84 on the iron block 83 is utilized to drive the drainage pipe 61 to swing toward the side close to the machine body 1 and then dock with the air supply pipe 24. At the same time, due to the presence of the reset spring 82, the magnet column 84 cannot be fitted with the iron block 83; at this time, the rising airflow in the drainage pipe 61 can enter the feed hopper 2 along the air supply pipe 24, and the vertical rising airflow can be used to The dust generated by the transmission of rice is brought into the hopper 2, so that the dust passes through the first inclined plate 72 and the second inclined plate 73 and then enters the dust collecting box 7, and then the dust is filtered by the filter screen plate 71, and the dust can be collected by the dust collecting box 7; when the vertical rod 862 drives the rapping ball 8621 to move upward, the rapping ball 8621 can hit the connecting air bag ring 74 in an inflated state, and the impact force of the rapping ball 8621 can vibrate the filter screen plate 71 connected to the connecting air bag ring 74, thereby shaking off the dust blocked in the mesh of the filter screen plate 71, and finally the surface of the filter screen plate 71 can be cleaned in the process of the vertical rod 862 moving upward.

Claims

1. A dual-motor rice husker, comprising a machine body (1), a feed hopper (2) located on the upper side of the machine body (1), two rubber rollers (11) rotatably connected to the machine body (1), a feed plate (21) arranged in the feed hopper (2) and used for transferring rice toward between the two rubber rollers (11), a husk separation box (3) located on the lower side of the machine body (1), and a fan (31) arranged in the husk separation box (3), characterized in that: A feeding hopper (4) is arranged in the feed hopper (2), a vibration motor (41) is arranged at the lower side of the feed hopper (4), a screening plate (42) is arranged on one side of the feed hopper (4) close to the upper end of the discharge plate (21), a collecting hopper (5) for large-grained stones to fall into is arranged at the side of the feed hopper (2) and at a position corresponding to the screening plate (42), and a plurality of screening holes (421) are provided in the screening plate (42) for rice to pass through and for screening out large-grained stones. The sieve hole (421) opens toward one side of the collecting hopper (5); a rotating shaft (22) located above the sieve plate (42) is rotatably connected inside the feeding hopper (2); a driving motor (23) connected to the end of the rotating shaft (22) is fixed on the outer wall of the feeding hopper (2); and a rotating arm (221) is provided on the rotating shaft (22) at a position corresponding to each sieve hole (421) for driving large-grained stones to enter the collecting hopper (5) after passing through the sieve hole (421).

2. A dual-motor rice husker according to claim 1, characterized in that: A material receiving plate (51) is arranged in the collecting bucket (5), a vertical rod (52) is arranged in the collecting bucket (5) and located below the material receiving plate (51), an upper end of the vertical rod (52) is provided with a hinge seat (521) for hinged connection of one side of the material receiving plate (51), a guide sleeve (53) for the vertical rod (52) to pass through is fixed in the collecting bucket (5), and an upper end of the vertical rod (52) is sleeved with a hinge seat (521) connected to the upper end and A connecting spring (522) is connected to the guide sleeve (53) at its lower end; a support block (54) is provided on the inner wall of the collecting bucket (5) for supporting the receiving plate (51) in a horizontal position; a stop rod (55) is provided in the collecting bucket (5) and located above the receiving plate (51) for tilting downward after the receiving plate (51) abuts against the receiving plate (51); and an air supply assembly (6) for supplying air to the lower end of the collecting bucket (5) is provided on the husk separation box (3).

3. A dual-motor rice husker according to claim 2, characterized in that: The support block (54) is triangular in shape. When the receiving plate (51) is in a downwardly tilted state under the action of the upwardly sprayed airflow, a falling channel (56) for large-grained stones and rice to fall is formed between the support block (54) and the lower end of the receiving plate (51), and a reflux channel (57) for rice to rise is formed between the upper end of the receiving plate (51) and the inner wall of the collecting bucket (5).

4. A dual-motor rice husker according to claim 2, characterized in that: The air supply assembly (6) comprises a drainage pipe (61) whose lower end is connected to the husk separation box (3) and whose upper end is used to connect to the lower end of the collecting bucket (5), and a guide plate (62) arranged on the inner wall of the husk separation box (3) and used to guide a part of the wind force of the fan (31) into the drainage pipe (61); and a mesh drawer (611) for collecting large-grained stones and having an upper side open and a lower side closed is arranged in the lower part of the drainage pipe (61).

5. A dual-motor rice husker according to claim 4, characterized in that: A dust box (7) is arranged on the upper side of the feed hopper (2), a filter screen (71) is arranged on the upper side of the dust box (7), a first inclined plate (72) is arranged in the dust box (7), a second inclined plate (73) is arranged in the dust box (7) and located below the first inclined plate (72), an air supply pipe (24) is arranged on the lower side of the feed hopper (2) for supplying air vertically toward the dust box (7) in the feed hopper (2) after docking with the upper end of the drainage pipe (61), and a switching component (8) for cutting the docking position of the upper end of the drainage pipe (61) is arranged between the machine body (1) and the drainage pipe (61).

6. A dual-motor rice husker according to claim 5, characterized in that: The switching assembly (8) comprises a bellows (81) whose upper end is connected to the lower end of the drainage pipe (61) and whose lower end is connected to the husk separation box (3), a return spring (82) whose one end is connected to the machine body (1) and whose other end is connected to the drainage pipe (61), an iron block (83) arranged on the drainage pipe (61), a magnet column (84) arranged on the machine body (1) and used to attract the iron block (83), a shielding iron plate (85) arranged between the iron block (83) and the magnet column (84) and used to shield the magnetic attraction of the magnet column (84) on the iron block (83), and a driving member (86) arranged on the feed hopper (2) and used to drive the shielding iron plate (85) to move up and down. When the shielding iron plate (85) is embedded in the position between the magnet column (84) and the iron block (83), gaps are left between the shielding iron plate (85) and the magnet column (84) and between the shielding iron plate (85) and the iron block (83).

7. A dual-motor rice husker according to claim 6, characterized in that: The driving member (86) comprises a half gear (861) arranged at the end of the rotating shaft (22), a vertical rod (862) whose lower end is connected to the shielding iron plate (85) and extends in a vertical upward direction, a rack (863) arranged on the vertical rod (862) and used to mesh with the half gear (861), a first guide sleeve (864) arranged on the upper side of the feed hopper (2) and through which the vertical rod (862) passes, and a second guide sleeve (865) arranged on the lower side of the feed hopper (2) and through which the vertical rod (862) passes.

8. A dual-motor rice husker according to claim 7, characterized in that: A connecting airbag ring (74) is provided between the dust collecting box (7) and the filter screen plate (71), and a rapping ball (8621) is provided at the upper end of the vertical rod (862) for colliding with the connecting airbag ring (74) in a bulging state after the vertical rod (862) moves to the extreme position.

9. A dual-motor rice husker according to claim 1, characterized in that: The machine body (1) is provided with a first motor (12) connected to the end of the rubber roller (11) on one side, and the machine body (1) is also provided with a second motor (13) connected to the end of the rubber roller (11) on the other side.

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