CN113289710B - Rubber roll rice huller feed mechanism - Google Patents
Rubber roll rice huller feed mechanism Download PDFInfo
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- CN113289710B CN113289710B CN202110708354.1A CN202110708354A CN113289710B CN 113289710 B CN113289710 B CN 113289710B CN 202110708354 A CN202110708354 A CN 202110708354A CN 113289710 B CN113289710 B CN 113289710B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
- B02B7/00—Auxiliary devices
- B02B7/02—Feeding or discharging devices
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Abstract
The utility model provides a rubber roll rice huller feed mechanism, belongs to agricultural technical field, but includes a hopper (1), short drop board (3) and crooked vibration long drop board (10), its characterized in that: the long sagging plate (10) capable of vibrating in bending is divided into three areas: the device comprises a drop plate (4) in a accumulation area, a parabola transition area (5) and an accelerating drop plate (6), wherein the lower part of the parabola transition area (5) is inserted into the accelerating drop plate (6) from the upper part of the accelerating drop plate (6) and is connected with the accelerating drop plate through a hinge during installation, and a vibration sliding groove (7) is formed in the inner surface of the bottom wall of the accelerating drop plate (6); two side walls of the hopper (1) are respectively provided with a square hole, and a hopper unloading control inserting plate (2) is inserted into the square hole; the hopper (1) and the short dripping plate (3) are connected in a way that the straight barrel part at the lower part of the hopper (1) is vertically inserted into the straight barrel part of the short dripping plate (3) from top to bottom and is connected through a hinge. The invention has strong operability, low cost and obvious effect.
Description
Technical Field
The invention relates to a feeding mechanism of a rubber roll rice huller, belonging to the technical field of agriculture.
Background
Rice hulling is a process for removing rice hulls from paddy to obtain complete brown rice, and is one of important links in the paddy processing process, and the quality of the rice hulling directly influences the yield and the quality of finished products in the paddy processing industry. The most widely used rice hulling equipment in the field of rice processing is a rubber roller rice huller. Therefore, the improvement of the rice hulling performance of the rubber roller rice huller is very important for the development of the rice processing industry. Therefore, scholars at home and abroad carry out a great deal of research on the rubber roller rice huller from different angles, so that the rice hulling performance and the automation level of the rubber roller rice huller are greatly improved compared with the prior art. But the shelling rate and the crushing rate still do not meet the ideal requirements, the shelling rate still stays at 80-90% at present, and the crushing rate is generally higher than 4%. There are researches to find that the most effective hulling mode of the rubber roller huller is as follows: the rubber roller removes the connection of the small cob and the interlocking of the inner and outer palea through the shearing action. Due to the particularity of the rice structure, the hulling posture has an extremely important influence on the hulling rate and the breakage rate, and proves that the hulling rate can be improved to 98.5 +/-0.82% and the breakage rate can be reduced to 2.3 +/-0.26% when rice grains are hulled in a posture that the long axis is vertical to the rotating shaft of the rubber roller. Therefore, under the condition that other conditions are optimal, the quality of the feeding system is key to improving the hulling rate and reducing the crushing rate. At present, relevant researches on a feeding system at home and abroad show that students mainly consider whether the feeding system can realize that materials enter a roller area through a feeding mechanism to be single-layer grains, the linear speed difference between the grains and a rubber roller is reduced as much as possible, the grains are accurately fed into a rice hulling area to avoid bouncing, and the grain flow is uniform. For example, in the improvement of a feeding mechanism of an LGGQ254 pneumatic rice huller by Lushuhua and the like, the feeding mechanism is convenient for the box body of the feeding part to slide by mounting a slide rail between the feeding part and the rubber roller box body, an observation window is arranged at a rolling distance part of the rubber roller box body, and the observation window is fixed after being adjusted to the optimal position according to the position of an outlet of a feeding flow plate, so that a material layer is always aligned to the center of the rolling distance, and accurate feeding is realized to avoid particles from bouncing. Meanwhile, the feeding mode of a plate flowing combination and a feeding roller is adopted for feeding, the plate flowing mode is shorter than that of a pure plate flowing feeding mode, and the requirement on the feeding speed is met by combining acceleration of the feeding roller. Any jin's application electromagnetic vibration feeder, the mode that feed roller and the board of trickling combined together has improved feeding mechanism, guarantees through this kind of mode that the bed of material sets up rationally, the feed is even and increase feed speed. The speed that the luoyuan mountain increased the cereal grain entering hulling region and prevented cereal grain from splashing through changing the contained angle of length trickle board and horizontal direction with increase long trickle board length. In the patent aspect, CN204074130U discloses a feeding structure of a rubber roll rice huller, which realizes the material refining function by arranging a crescent-shaped material distributing part and a diversion cavity on a short dripping plate and dividing the diversion cavity communicated with the diversion cavity of the short dripping plate on a long dripping plate, thereby avoiding the stacking and overlapping of rice grains in a rice hulling area; CN204074216U discloses a splash-proof feeding mechanism, wherein a mechanism for controlling the inclination angle of a long dripping plate is added to ensure that the terminal point of the long dripping plate is always aligned with the gap between two rubber rollers; CN202356122U discloses a feeding mechanism of a rice huller, which adopts a flow regulating plate installed below a feed hopper, and controls the flow regulating plate through a regulating handle transmission mechanism to realize high-precision control of feeding flow; CN206911417U discloses a feeding mechanism of a rice huller, which adopts a vibrating screen to uniformly scatter rice particles on a long guide plate, and divides drainage grooves on the long guide plate to realize uniform distribution. It can be seen that the above documents and patents do not consider the problem of the posture of grains entering the hulling area in the research and improvement of the feeding mechanism. To solve the problem, CN201064719Y and CN201064718Y disclose a pneumatic vibration feeder for a rubber roll rice huller and a double-row magnetic coil type vibration feeder for a rubber roll rice huller, wherein the pneumatic vibration feeder and the double-row magnetic coil type vibration feeder are connected by a spring sheet between a stock bin and a stock bin frame, and provide vibration in a pneumatic vibration cylinder and magnetic coil type vibration mode respectively, feed a long flowing plate in a refining mode, and adjust the posture. The mode plays a certain role in adjusting the posture, but the adjustment rate is not high, and the equipment structure is complex. Therefore, the technical problem to be solved urgently is to design a feeding hulling area which has simple structure and stable work and can realize quick, vertical and uniform feeding of rice grains, thereby greatly improving hulling rate and reducing breakage rate, and meanwhile, the device also provides reference for development of devices such as grading, rectifying, color sorting and the like of bulk granular materials which are similar to ellipsoids or are long. Therefore, the invention is necessary to invent the feeding mechanism of the rubber roll rice huller.
Disclosure of Invention
The invention provides a feeding mechanism of a rubber roll rice huller, which has simple structure and stable operation, can bend and vibrate three areas of a long flowing plate, and the flowing plate of a stacking area can realize the adjustment of the posture of rice grains, so that the long axis of the rice grains is adjusted to be parallel to the flowing direction of a grain flow; the parabola transition zone can enable the particle attitude to be continuously adjusted and gradually transits to a vibration zone with a sliding chute; the accelerating flowing plate can keep the best rice hulling posture of the grains with the adjusted posture unchanged, forcibly adjust the grains with the poor posture to the best posture, accelerate the rice grains and realize the synergistic effect of the three areas, so that the invention can realize the rapid vertical feeding of the rice grains to the rice hulling area.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention relates to a feeding mechanism of a rubber roll rice huller, which comprises a hopper 1, a short flowing plate 3 and a long flowing plate 10 capable of vibrating in a bending way.
The hopper 1 is made of iron, copper or aluminum alloy, the thickness of the wall is 1-5mm, the hopper 1 is divided into an upper part, a middle part and a lower part, the upper part of the hopper 1 is a cube, the length, the width and the height of the cube are 150-250mm, and the cube is not provided with a top wall and is used for charging; the middle part of the hopper 1 is a cone, the upper part of the cone of the hopper 1 is square, the length and the width of the square are both 150-250mm, the lower part of the cone of the hopper 1 is square, and the length and the width of the square are both 30-70 mm; the lower part of the hopper 1 is a square barrel, the length, the width and the height of the square barrel are all 30-70mm, and the square barrel is not provided with a top wall and a bottom wall; the adjacent parts of the upper part, the middle part and the lower part of the hopper 1 are connected together in a welding mode. Two corresponding side walls at the joint of the cone of the hopper 1 and the square barrel are respectively provided with a square hole with the height of 2-5mm and the width of 20-50mm, a hopper unloading control inserting plate 2 is inserted in the square hole, and the hopper unloading control inserting plate 2 is made of iron, copper or aluminum alloy, and has the thickness of 1.9-4.9mm, the length of 40-60mm and the width of 19-49 mm.
The short flowing plate 3 is divided into an upper part and a lower part, the lower part of the short flowing plate 3 is made of iron, copper or aluminum alloy, the wall thickness is 1-5mm, the short flowing plate is in a straight barrel shape, the length of the lower part of the short flowing plate 3 is 150 mm, the width is 31-75mm, the thickness is 31-75mm, and the included angle between the lower part of the short flowing plate 3 and the horizontal direction is 25-35 degrees; the upper part of the short dripping plate 3 is a square barrel which is vertically arranged upwards, the length of the square barrel is 31-75mm, the width of the square barrel is 31-75mm, the height of the square barrel is 40-80mm, and the square barrel is not provided with a top wall and a bottom wall; the upper part and the lower part of the short dripping plate 3 are connected together by welding; the hopper 1 and the short dripping plate 3 are connected in a way that the straight barrel part at the lower part of the hopper 1 is vertically inserted into the straight barrel part of the short dripping plate 3 from top to bottom and is connected through a hinge.
The long vibrating plate 10 is divided into three regions: the structure comprises a flow plate 4 in an accumulation area, wherein the flow plate 4 in the accumulation area is a section of straight flow plate, the flow plate 4 in the accumulation area is made of iron, copper or aluminum alloy and is in a straight barrel shape, the straight barrel is 250mm long, 60-100mm wide and 60-100mm high, the thickness of the barrel wall is 2-5mm, and the included angle between the flow plate 4 in the accumulation area and the horizontal direction is 30-40 degrees; a parabolic transition area 5, wherein the parabolic transition area 5 is connected with the lower part of the flow plate 4 in the accumulation area and is connected through a hinge, the parabolic transition area 5 is made of iron, copper or aluminum alloy and is in a bent barrel shape, the flow plate at the bottom of the parabolic transition area 5 is formed by bending an iron plate, a copper plate or an aluminum alloy plate with the thickness of 2-5mm, two iron plates, copper plates or aluminum alloy plates with the height of 60-100mm and the thickness of 2-5mm are welded on two sides of the flow plate at the bottom to form a bent side wall, and then a bent iron plate, copper plate or aluminum alloy plate with the thickness of 2-5mm is welded on the inner side of the top edge of the bent side wall to form a top wall, so that the parabolic transition area 5 in the bent barrel shape is formed, and the length of the parabolic transition area 5 is 100-200 mm; thirdly, an accelerating flowing plate 6 is arranged below the parabola transition region 5, the lower part of the parabola transition region 5 is inserted into the accelerating flowing plate 6 from the upper part of the accelerating flowing plate 6 and is connected through a hinge when the accelerating flowing plate 6 is installed, the accelerating flowing plate 6 is made of iron, copper or aluminum alloy and is in a straight barrel shape, and the length of the accelerating flowing plate 6 is 500-700 mm; the inner surface of the bottom wall of the acceleration dripping plate 6 is provided with a vibration chute 7, the vibration chute 7 is made of acrylic materials, the length of the vibration chute is 300-500mm, the thickness of the vibration chute is 5-10mm, the included angle between the vibration chute 7 and the horizontal direction is 65-75 degrees, the upper surface of the vibration chute 7 is provided with a plurality of semicircular grooves, the diameters of the semicircular grooves are 3-5mm, the adjacent semicircular grooves are tightly connected, the middle of the semicircular grooves is not provided with a transition area, the upper surface of the vibration chute 7 is parallel to the inner surface of the acceleration dripping plate 6 and connected together in a sliding way, the lower end of the vibration chute 7 is provided with a vibration motor, the vibration chute 7 can vibrate along the length direction of the acceleration dripping plate 6 under the driving of the vibration motor, the vibration frequency of the vibration chute 7 is 250-350HZ, and the amplitude of the vibration chute 7 is 1-2 mm. The three regions of the bending vibratable long sagging plate 10 function as: the flow plate 4 in the accumulation area can realize the adjustment of the posture of the rice grains, so that the long axis of the rice grains is adjusted to be parallel to the flow direction of the grain flow; the parabola transition zone 5 can enable the particle attitude to be continuously adjusted and gradually transits to a vibration area with a sliding chute; the accelerating flowing plate 6 can keep the best grain hulling posture of the grains with the adjusted posture unchanged, forcibly adjust the grains with the poor posture to the best posture, accelerate the rice grains at the same time, and realize the synergistic effect of the three areas, so that the invention can realize that the rice grains are quickly and vertically fed into a grain hulling area.
The feeding mechanism of the rubber roll rice huller has the advantages that the feeding mechanism is simple in structure and stable in work, the bending of the feeding mechanism can vibrate the long flow plate in three areas, the flow plate in the accumulation area can realize the adjustment of the posture of rice grains, and the long axis of the rice grains is adjusted to be parallel to the flow direction of the grain flow; the parabola transition zone can enable the particle attitude to be continuously adjusted and gradually transits to a vibration zone with a sliding chute; the accelerating flowing plate can keep the best rice hulling posture of the grains with the adjusted posture unchanged, forcibly adjust the grains with the poor posture to the best posture, accelerate the rice grains and realize the synergistic effect of the three areas, so that the invention can realize the rapid vertical feeding of the rice grains to the rice hulling area.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the overall structure of a feeding mechanism of a rubber roll rice huller
FIG. 2 is a theoretical drawing of plate flowing design of feeding mechanism of rubber roll rice huller
FIG. 3 is a qualitative effect diagram of an example of a feeding mechanism of a rubber roll rice huller
FIG. 4 is a diagram showing the quantitative effect of the feeding mechanism of the rubber roll rice huller
In the figure, 1, a hopper, 2, a hopper unloading control inserting plate, 3, a short flow plate, 4, a flow plate in a stacking area, 5, a parabolic transition area, 6, an acceleration flow plate, 7, a vibration chute, 8, a main view enlarged view of the vibration chute, 9, a side view enlarged view of the vibration chute and 10, a bending vibration long flow plate.
Detailed Description
Example one
As shown in figure 1, the feeding mechanism of the rubber roll rice huller comprises a hopper 1, a short flowing plate 3 and a long flowing plate 10 which can be bent and vibrated. The hopper 1 is made of iron, copper or aluminum alloy, the thickness of the wall is 1-5mm, the hopper 1 is divided into an upper part, a middle part and a lower part, the upper part of the hopper 1 is a cube, the length, the width and the height of the cube are 150-250mm, and the cube is not provided with a top wall and is used for charging; the middle part of the hopper 1 is a cone, the upper part of the cone of the hopper 1 is square, the length and the width of the square are both 150-250mm, the lower part of the cone of the hopper 1 is square, and the length and the width of the square are both 30-70 mm; the lower part of the hopper 1 is a square barrel, the length, the width and the height of the square barrel are all 30-70mm, and the square barrel is not provided with a top wall and a bottom wall; the adjacent parts of the upper part, the middle part and the lower part of the hopper 1 are connected together in a welding mode to form a barrel shape with a large upper opening and a small lower opening and with openings at the upper part and the lower part. Two side walls corresponding to the joint of the cone of the hopper 1 and the square barrel are respectively provided with a square hole with the height of 2-5mm and the width of 20-50mm, a hopper unloading control inserting plate 2 for controlling the material to flow downwards is inserted in the square hole, and the hopper unloading control inserting plate 2 is made of iron, copper or aluminum alloy, is solid, has the thickness of 1.9-4.9mm, the length of 40-60mm and the width of 19-49 mm. The short flowing plate 3 is divided into an upper part and a lower part, the lower part of the short flowing plate 3 is made of iron, copper or aluminum alloy, the wall thickness is 1-5mm, the short flowing plate is in a straight barrel shape, the length of the lower part of the short flowing plate 3 is 150 mm, the width is 31-75mm, the thickness is 31-75mm, and the included angle between the lower part of the short flowing plate 3 and the horizontal direction is 25-35 degrees; the upper part of the short dripping plate 3 is a square barrel which is vertically arranged upwards, the length of the square barrel is 31-75mm, the width of the square barrel is 31-75mm, the height of the square barrel is 40-80mm, and the square barrel is not provided with a top wall and a bottom wall; the upper part and the lower part of the short dripping plate 3 are connected together by welding; the hopper 1 and the short dripping plate 3 are connected in a way that the straight barrel part at the lower part of the hopper 1 is vertically inserted into the straight barrel part of the short dripping plate 3 from top to bottom and is connected through a hinge. The long vibrating plate 10 is divided into three regions: the structure comprises a flow plate 4 in an accumulation area, wherein the flow plate 4 in the accumulation area is a section of straight flow plate, the flow plate 4 in the accumulation area is made of iron, copper or aluminum alloy and is in a straight barrel shape, the straight barrel is 250mm long, 60-100mm wide and 60-100mm high, the thickness of the barrel wall is 2-5mm, and the included angle between the flow plate 4 in the accumulation area and the horizontal direction is 30-40 degrees; a parabolic transition area 5, wherein the parabolic transition area 5 is connected with the lower part of the flow plate 4 in the accumulation area and is connected through a hinge, the parabolic transition area 5 is made of iron, copper or aluminum alloy and is in a bent barrel shape, the flow plate at the bottom of the parabolic transition area 5 is formed by bending an iron plate, a copper plate or an aluminum alloy plate with the thickness of 2-5mm, two iron plates, copper plates or aluminum alloy plates with the height of 60-100mm and the thickness of 2-5mm are welded on two sides of the flow plate at the bottom to form a bent side wall, and then a bent iron plate, copper plate or aluminum alloy plate with the thickness of 2-5mm is welded on the inner side of the top edge of the bent side wall to form a top wall, so that the parabolic transition area 5 in the bent barrel shape is formed, and the length of the parabolic transition area 5 is 100-200 mm; thirdly, an accelerating dripping plate 6, wherein the accelerating dripping plate 6 is positioned below the parabola transition zone 5, the lower part of the parabola transition zone 5 is inserted into the accelerating dripping plate 6 from the upper part of the accelerating dripping plate 6 and is connected through a hinge during installation, the accelerating dripping plate 6 is made of iron, copper or aluminum alloy and is in a straight barrel shape, and the length of the accelerating dripping plate 6 is 500-700 mm; the internal surface of the bottom wall of the acceleration flowing plate 6 is provided with a vibration chute 7, the vibration chute 7 is made of acrylic materials, the length is 300-doped 500mm, the thickness is 5-10mm, the included angle between the vibration chute 7 and the horizontal direction is 65-75 degrees, a plurality of semicircular grooves are arranged on the upper surface of the vibration chute 7, the diameter of each semicircular groove is 3-5mm, adjacent semicircular grooves are tightly connected, no transition region is arranged in the middle, the upper surface of the vibration chute 7 is parallel to the internal surface of the acceleration flowing plate 6, the two are connected together in a sliding way, the lower end of the vibration chute 7 is provided with a vibration motor, under the driving of the vibration motor, the vibration chute 7 can vibrate along the length direction of the acceleration flowing plate 6, the vibration frequency of the vibration chute 7 is 250-doped 350HZ, and the amplitude is 1-2 mm. The three regions of the bending vibratable long sagging plate 10 function as: the flow plate 4 in the accumulation area can realize the adjustment of the posture of the rice grains, so that the long axis of the rice grains is adjusted to be parallel to the flow direction of the grain flow; the parabola transition zone 5 can enable the particle attitude to be continuously adjusted and gradually transits to a vibration area with a sliding chute; the accelerating flowing plate 6 can keep the best grain hulling posture of the grains with the adjusted posture unchanged, forcibly adjust the grains with the poor posture to the best posture, accelerate the rice grains at the same time, and realize the synergistic effect of the three areas, so that the invention can realize that the rice grains are quickly and vertically fed into a grain hulling area; the specific calculation design of the bending vibration long sagging plate 10 can be carried out by combining the design idea diagram of the sagging plate shown in fig. 2 and the formula (1).
In the formula v0The speed of the uppermost rice seed in the stacking area when the uppermost rice seed leaves the stacking area, and alpha is the speed v of the uppermost rice seed in the stacking area when the uppermost rice seed leaves the stacking area0The included angle between the flow plate and the horizontal plane in the acceleration region is beta, t is the movement time of the particles in the transition region, and b is a constant in an acceleration region trajectory equation. P is the tangent point of the acceleration region trajectory and the parabola transition zone. According to the feeding flow, all parameters can be calculated and designed by adopting the formula (1) according to different requirements. The function implementation mode of the invention is as follows: the rice grain flows out from the hopper 1 to the short flowing plate 3, the rice grain is conveyed to the bent vibrating long flowing plate 10 through the short flowing plate, firstly, the quasi-static grain accumulation is formed in the flowing plate 4 in the accumulation area, grain shearing flow along the accumulation depth direction and grain shearing flow along the flowing plate width direction are naturally formed between the accumulation upper layer and the accumulation lower layer, the grain posture is adjusted by means of the grain shearing flow, the long axis of the grain is gradually parallel to the grain flowing direction, then the grain reaches the parabola transition area 5, most of the grain is kept in the optimal posture to enter the accelerating flowing plate 6, when the grain enters the accelerating flowing plate 6, because the included angle between the flowing plate and the horizontal direction is increased, the grain self gravity accelerates the grain, when the grain reaches the vibrating chute 7, the grain enters the chute to keep the optimal postureThe state flows into the rice huller millet region, and the partly grain that does not get into the spout forces the adjustment gesture to get into vibration spout 7 under the shearing action that the spout board provided along the vibration of grain flow direction to it is regional to keep accelerateing the entering rice huller millet, thereby makes the quick vertical entering rice huller millet of grain regional.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (3)
1. The utility model provides a rubber roll rice huller feed mechanism, includes a hopper (1), short trickle board (3) and crooked vibratile length trickle board (10), its characterized in that: the long sagging plate (10) capable of vibrating in bending is divided into three areas: the flow plate (4) in the accumulation area is a section of straight flow plate, the flow plate (4) in the accumulation area is made of iron, copper or aluminum alloy and is in a straight barrel shape, the length of the straight barrel is 150-250mm, the width of the straight barrel is 60-100mm, the height of the straight barrel is 60-100mm, the thickness of the barrel wall is 2-5mm, and the included angle between the flow plate (4) in the accumulation area and the horizontal direction is 30-40 degrees; the parabolic transition region (5) is connected to the lower part of the flow plate (4) in the accumulation region and is connected through a hinge, the parabolic transition region (5) is made of iron, copper or aluminum alloy and is in a bent barrel shape, the flow plate at the bottom of the parabolic transition region (5) is formed by bending an iron plate, a copper plate or an aluminum alloy plate with the thickness of 2-5mm, two iron plates, copper plates or aluminum alloy plates with the height of 60-100mm and the thickness of 2-5mm are welded on two sides of the flow plate at the bottom to form a bent side wall, then a bent iron plate, copper plate or aluminum alloy plate with the thickness of 2-5mm is welded on the inner side of the top edge of the bent side wall to form a top wall, so that the parabolic transition region (5) in the bent barrel shape is formed, and the length of the parabolic transition region (5) is 100-200 mm; thirdly, an accelerating flowing plate (6), wherein the accelerating flowing plate (6) is positioned below the parabola transition region (5), the lower part of the parabola transition region (5) is inserted into the accelerating flowing plate (6) from the upper part of the accelerating flowing plate (6) and is connected through a hinge when the accelerating flowing plate is installed, the accelerating flowing plate (6) is made of iron, copper or aluminum alloy and is in a straight barrel shape, and the length of the accelerating flowing plate (6) is 500-700 mm; the inner surface of the bottom wall of the acceleration dripping plate (6) is provided with a vibration chute (7), the vibration chute (7) is made of acrylic materials, the length is 300-500mm, the thickness is 5-10mm, the included angle between the vibration chute (7) and the horizontal direction is 65-75 degrees, the upper surface of the vibration chute (7) is provided with a plurality of semicircular grooves, the diameter of each semicircular groove is 3-5mm, adjacent semicircular grooves are tightly connected, the middle part of each semicircular groove is not provided with a transition area, the upper surface of the vibration chute (7) is parallel to the inner surface of the acceleration dripping plate (6), the two semicircular grooves are connected together in a sliding way, the lower end of the vibration chute (7) is provided with a vibration motor, the vibration frequency of the vibration chute (7) is 250-350HZ, and the amplitude is 1-2 mm; the adjacent parts of the upper part, the middle part and the lower part of the hopper (1) are connected together in a welding mode; two corresponding side walls at the joint of the cone of the hopper (1) and the square barrel are respectively provided with a square hole with the height of 2-5mm and the width of 20-50mm, and a hopper unloading control inserting plate (2) is inserted into the square hole; the hopper (1) and the short dripping plate (3) are connected in a way that the straight barrel part at the lower part of the hopper (1) is vertically inserted into the straight barrel part of the short dripping plate (3) from top to bottom and is connected through a hinge.
2. The feed mechanism of rubber-covered roll rice huller as claimed in claim 1, wherein: the hopper (1) is made of iron, copper or aluminum alloy, the thickness of the wall is 1-5mm, the hopper (1) is divided into an upper part, a middle part and a lower part, the upper part of the hopper (1) is a cube, the length, the width and the height of the cube are 150-250mm, and the cube is not provided with a top wall and is used for charging; the middle part of the hopper (1) is a cone, the upper part of the cone of the hopper (1) is square, the length and the width of the square are both 150 and 250mm, the lower part of the cone of the hopper (1) is square, and the length and the width of the square are both 30-70 mm; the lower part of the hopper (1) is a square barrel, the length, the width and the height of the square barrel are all 30-70mm, and the square barrel is not provided with a top wall and a bottom wall; the hopper discharge control flashboard (2) is made of iron, copper or aluminum alloy, and has the thickness of 1.9-4.9mm, the length of 40-60mm and the width of 19-49 mm.
3. The feeding mechanism of the rubber roll rice huller as claimed in claim 1, wherein: the short flowing plate (3) is divided into an upper part and a lower part, the lower part of the short flowing plate (3) is made of iron, copper or aluminum alloy, the wall thickness is 1-5mm, the short flowing plate is in a straight barrel shape, the length of the lower part of the short flowing plate (3) is 150 mm, the width of the lower part of the short flowing plate is 31-75mm, the thickness of the lower part of the short flowing plate is 31-75mm, and the included angle between the lower part of the short flowing plate and the horizontal direction is 25-35 degrees; the upper part of the short dripping plate (3) is a square barrel which is vertically arranged upwards, the length of the square barrel is 31-75mm, the width of the square barrel is 31-75mm, the height of the square barrel is 40-80mm, and the square barrel is not provided with a top wall and a bottom wall; the upper part and the lower part of the short dripping plate (3) are connected together by welding.
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