Impurity removing device of rice huller

Abstract

The utility model belongs to the technical field of rice hullers, and particularly relates to an impurity removing device of a rice huller, which comprises a base. A box body is fixedly connected to the base, a first filter screen plate and a second filter screen plate are sequentially arranged in the box body from top to bottom, oscillation mechanisms are arranged below the first filter screen plate and the second filter screen plate, each oscillation mechanism comprises two rotating rods, and the two rotating rods are rotationally installed in the box body; the outer circumferential surfaces of the two rotating rods are sleeved with cams, the outer surfaces of the two cams correspondingly make contact with the bottom side wall of the first filter screen plate and the bottom side wall of the second filter screen plate, and one end of each rotating rod is sleeved with a first belt wheel; when the rice husking machine is used, small and large particle impurities mixed in husked rice grains and light impurities can be removed, so that the impurities can be thoroughly cleaned, the cleanliness and the quality of the rice grains are improved, and the processing quality of subsequent products is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of rice shelling machines, in particular to an impurity removing device for a rice shelling machine. Background Technique

[0002] A rice shelling machine, also known as a paddy hulling machine, is a machine specifically used to remove the outer shell of paddy. One of the key steps in the rice processing production line is shelling, that is, removing the rough outer shell and bran layer of paddy and leaving smooth rice grains.

[0003] The existing rice shelling machine mainly consists of a feed hopper, a machine shell, a driving mechanism, a shelling roller and a vibrating screen. When paddy enters the machine shell through the feed hopper, under the action of the driving mechanism, the shelling roller rotates. Through the relative rotation and extrusion between the rollers, the outer shell of paddy is broken and separated. The mixture of shelled paddy and rice husks enters the screening area. Under the action of the vibrating screen, the smooth rice grains will fall into the collection box through the screen holes, and the rice husks and straws will be intercepted by the screen and remain above the screen, thus realizing the separation of paddy and rice husks and enabling the collection of smooth rice grains.

[0004] In the existing rice shelling machine, during the shelling process, only larger particle impurities such as rice husks and straws can be screened and removed. Small particle impurities smaller than the rice grains, such as small stones and sand grains, still remain in the shelled rice grains. These remaining small particle impurities seriously affect the quality of rice and reduce the quality of the subsequent processed products. Therefore, an impurity removing device for a rice shelling machine is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the existing technology and solve the problems raised in the above background technique, the utility model proposes an impurity removing device for a rice shelling machine.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: An impurity removal device for a rice huller of the utility model includes a base; a box body is fixedly connected to the base, a first filter screen plate and a second filter screen plate are sequentially arranged in the box body from top to bottom, an oscillation mechanism is arranged below both the first filter screen plate and the second filter screen plate, the oscillation mechanism includes two rotating rods, two rotating rods are rotatably installed in the box body, cams are sleeved on the outer circumferential surfaces of the two rotating rods, and the outer surfaces of the two cams are respectively in contact with the bottom side walls of the first filter screen plate and the second filter screen plate, one end of each of the two rotating rods is sleeved with a first pulley, a first conveyor belt is cooperatively sleeved on the outer surfaces of the two first pulleys, a first motor is installed on the side wall of the box body far from the first pulley, and the output end of the first motor is connected to one end of one of the rotating rods, an inclined feeding table is fixedly connected to the bottom of the box body, eight short plates are fixedly connected to the inner wall of the box body, four short plates are in a group, a sleeve is fixedly connected to each short plate, a spring is fixedly connected to the bottom end of each sleeve, and the other end of the spring is fixed with a lifting rod, the top ends of each group of lifting rods are respectively fixedly connected to the bottom side walls of the first filter screen plate and the second filter screen plate, a large particle impurity discharge port, a rice grain discharge port and a small particle impurity discharge port are sequentially arranged from top to bottom on one side of the box body. When removing impurities mixed in the shelled rice grains, the lighter impurities after shelling are sucked out of the box body by the suction fan under the action of wind force and are collected by the collecting cloth bag, while the heavier large and small particle impurities fall onto the first filter screen plate. The first motor is started, and with the cooperation of the first conveyor belt, the two first pulleys drive the two rotating rods to rotate, and then the cams also rotate. With the cooperation of the springs and the lifting rods, the two cams drive the first filter screen plate and the second filter screen plate to move up and down, thereby improving the filtering effect. The first filter screen plate intercepts large particle impurities such as straws and rice hulls, and the large particle impurities are discharged through the large particle impurity discharge port. The small particle impurities and smooth rice grains quickly fall through the filter holes onto the second filter screen plate. The second filter screen plate intercepts the smooth rice grains, and the rice grains after impurity removal are discharged through the feeding hopper, enabling the small particle impurities to quickly fall through the filter holes onto the inclined feeding table and finally be discharged through the small particle impurity discharge port. This structural design can remove the large and small particle impurities and the lighter impurities mixed in the shelled rice grains, thereby thoroughly cleaning the impurities, improving the cleanliness and quality of the rice grains, and ensuring the processing quality of the subsequent products.

[0007] Preferably, a large particle impurity collection trough is fixedly connected to the bottom side of the port of the large particle impurity discharge port, a material guiding hopper is fixedly connected to the port of the rice discharge port, and a small particle impurity collection trough is arranged at the bottom side of the port of the small particle impurity discharge port. When using this device, by setting up the large particle impurity collection trough, it is convenient to collect large particle impurities. By setting up the small particle impurity collection trough, it is convenient to collect small particle impurities. By setting up the material guiding hopper, it is convenient to export the smooth rice grains for subsequent collection.

[0008] Preferably, a feed hopper is connected to the top end of the box body. A rotating shaft is rotatably installed in the box body. Hulling rollers are sleeved on the outer circumferential surface of the rotating shaft. A plurality of barbs are fixed on the inner wall of the top end of the box body, and the barbs on the inner wall of the box body are arranged in a staggered manner with the barbs on the hulling rollers. A second belt pulley is sleeved on one end of the rotating shaft. A support seat is fixedly connected to the base. A second motor is installed on the support seat. A third belt pulley is installed at the output end of the second motor. A second conveyor belt is cooperatively sleeved on the outer surfaces of the second belt pulley and the third belt pulley. During the process of hulling paddy, first, the paddy to be hulled is put into the hulling chamber in the box body. The second motor is started to make the third belt pulley rotate. With the cooperation of the second conveyor belt, the hulling rollers rotate. Through the high-speed rotation of the hulling rollers, the hulling treatment of paddy can be realized.

[0009] Preferably, a through port is opened on one side of the box body far away from the second belt pulley. A suction fan is installed at the port of the through port. A collection cloth bag is movably installed on the shell of the suction fan. During the hulling process, the lighter impurities generated are sucked out of the box body by the action of the suction fan using wind power and are collected by the collection cloth bag, so that the lighter impurities can be removed.

[0010] The beneficial effects of the present utility model are as follows:

[0011] When removing impurities mixed in the rice grains after shelling, for the impurities with lighter quality after shelling, under the action of the suction fan, the lighter impurities such as rice husks are sucked out of the box body by wind power and collected by the collection cloth bag, while the heavier large and small particle impurities fall onto the first filter screen plate. Start the first motor, and with the cooperation of the first conveyor belt, the two first belt pulleys drive the two rotating rods 9 to rotate, and then the cam also rotates accordingly. With the cooperation of the spring and the lifting rod, the two cams drive the first filter screen plate and the second filter screen plate to move up and down, thereby improving the filtering effect. The first filter screen plate will intercept large particle impurities such as straw and rice husks, and the large particle impurities will be discharged through the large particle impurity discharge port. The small particle impurities and smooth rice grains will quickly fall through the filter holes onto the second filter screen plate. The second filter screen plate will intercept the smooth rice grains, and the rice grains after impurity removal will be discharged through the material guiding hopper, enabling the small particle impurities to quickly fall through the filter holes onto the inclined material guiding table and finally discharged through the small particle impurity discharge port. This structural design can remove the large and small particle impurities and relatively light impurities mixed in the rice grains after shelling, thereby thoroughly cleaning the impurities, improving the cleanliness and quality of the rice grains, and ensuring the processing quality of subsequent products. Brief Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a schematic three-dimensional structure diagram of the whole impurity removal device;

[0014] Figure 2 It is a schematic three-dimensional structure diagram of the cross-section of the box body;

[0015] Figure 3 It is a schematic three-dimensional structure diagram of the vibration screening mechanism;

[0016] Figure 4 It is a schematic three-dimensional structure diagram of the cross-section of the sleeve;

[0017] Figure 5 It is a schematic three-dimensional structure diagram of the shelling mechanism.

[0018] In the figure: 1, base; 2, box body; 3, first filter screen plate; 4, second filter screen plate; 5, short board; 6, sleeve; 7, spring; 8, lifting rod; 9, rotating rod; 10, first pulley; 11, first conveyor belt; 12, first motor; 13, cam; 14, inclined feeding table; 15, large particle impurity discharge port; 16, rice discharge port; 17, small particle impurity discharge port; 18, large particle impurity collection tank; 19, feeding hopper; 20, small particle impurity collection tank; 21, rotating shaft; 22, hulling roller; 23, barbs; 24, second pulley; 25, second motor; 26, third pulley; 27, second conveyor belt; 28, suction fan; 29, collection cloth bag; 30, feed hopper. Detailed implementation manners

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-4As shown in the figure, an impurity removal device for a rice huller includes a base 1; a box body 2 is fixedly connected to the base 1, and a first filter screen plate 3 and a second filter screen plate 4 are sequentially arranged in the box body 2 from top to bottom. Oscillation mechanisms are arranged below both the first filter screen plate 3 and the second filter screen plate 4. The oscillation mechanism includes two rotating rods 9. Two rotating rods 9 are rotatably installed in the box body 2. Cam 13 is sleeved on the outer circumferential surfaces of the two rotating rods 9, and the outer surfaces of the two cams 13 are respectively in contact with the bottom side walls of the first filter screen plate 3 and the second filter screen plate 4. One end of each of the two rotating rods 9 is sleeved with a first pulley 10, and a first conveyor belt 11 is fitted and sleeved on the outer surfaces of the two first pulleys 10. A first motor 12 is installed on the side wall of the box body 2 far from the first pulley 10, and the output end of the first motor 12 is connected to one end of one of the rotating rods 9. An inclined feeding table 14 is fixedly connected to the bottom of the box body 2. Eight short plates 5 are fixedly connected to the inner wall of the box body 2. Four short plates 5 form a group. A sleeve 6 is fixedly connected to each short plate 5. A spring 7 is fixedly connected to the bottom end of each sleeve 6, and the other end of the spring 7 is fixed with a lifting rod 8. The top ends of each group of lifting rods 8 are respectively fixedly connected to the bottom side walls of the first filter screen plate 3 and the second filter screen plate 4. A large particle impurity discharge port 15, a rice grain discharge port 16, and a small particle impurity discharge port 17 are sequentially opened on one side of the box body 2 from top to bottom; when removing impurities mixed in the shelled rice grains, the lighter impurities after shelling are sucked out of the box body 2 by the suction force of the suction fan 28 and collected by the collection cloth bag 29. The heavier large and small particle impurities fall onto the first filter screen plate 3. Start the first motor 12. With the cooperation of the first conveyor belt 11, the two first pulleys 10 drive the two rotating rods 9 to rotate, and then the cams 13 also rotate. With the cooperation of the spring 7 and the lifting rod 8, the two cams 13 drive the first filter screen plate 3 and the second filter screen plate 4 to move up and down, thereby improving the filtering effect. The first filter screen plate 3 intercepts large particle impurities such as straw and rice husks, and the large particle impurities will be discharged through the large particle impurity discharge port 15 along the second filter screen plate 4. The small particle impurities and smooth rice grains will quickly pass through the filter holes and fall onto the second filter screen plate 4. The second filter screen plate 4 intercepts the smooth rice grains, and the rice grains after impurity removal will be discharged through the guide hopper 19, so that the small particle impurities quickly pass through the filter holes and fall onto the inclined feeding table 14, and finally are discharged through the small particle impurity discharge port 17. This structural design can remove the large and small particle impurities and lighter impurities mixed in the shelled rice grains, thereby thoroughly cleaning the impurities, improving the cleanliness and quality of the rice grains, and ensuring the processing quality of the subsequent products.

[0021] A large particle impurity collection tank 18 is fixedly connected to the bottom side of the port of the large particle impurity discharge port 15. A material guiding hopper 19 is fixedly connected to the port of the rice discharge port 16. A small particle impurity collection tank 20 is arranged at the bottom side of the port of the small particle impurity discharge port 17. When using this device, by arranging the large particle impurity collection tank 18, it is convenient to collect large particle impurities. By arranging the small particle impurity collection tank 20, it is convenient to collect small particle impurities. By arranging the material guiding hopper 19, it is convenient to discharge smooth rice grains for subsequent collection.

[0022] Please refer to Figure 5 As shown in the figure, a feed hopper 30 is connected to the top end of the box body 2. A rotating shaft 21 is rotatably installed in the box body 2. Hulling rollers 22 are sleeved on the outer circumferential surface of the rotating shaft 21. A plurality of barbs 23 are fixed on the inner wall of the top end of the box body 2, and the barbs 23 on the inner wall of the box body 2 and the barbs 23 on the hulling rollers 22 are arranged alternately. A second pulley 24 is sleeved on one end of the rotating shaft 21. A support seat is fixedly connected to the base 1. A second motor 25 is installed on the support seat. A third pulley 26 is installed at the output end of the second motor 25, and a second conveyor belt 27 is sleeved on the outer surfaces of the second pulley 24 and the third pulley 26 in a matching manner. During the process of hulling paddy, first, the paddy to be hulled is put into the hulling chamber in the box body 2 through the feed hopper 30. The second motor 25 is started to make the third pulley 26 rotate. Under the cooperation of the second conveyor belt 27, the hulling rollers 22 rotate. Through the high-speed rotation of the hulling rollers 22, the hulling treatment of paddy can be realized.

[0023] Please refer to Figure 1 and Figure 5 As shown in the figure, a through port is opened on one side of the box body 2 far from the second pulley 24. An air suction fan 28 is installed at the port of the through port. A collection cloth bag 29 is movably installed on the housing of the air suction fan 28. During the hulling process, the lighter impurities generated are sucked out of the box body 2 by the action of the air suction fan 28 using wind power and are collected by the collection cloth bag 29, so that the lighter impurities can be removed.

[0024] Working principle: Since existing rice hullers can only screen and remove larger granular impurities such as rice husks and straws during the hulling process, there are still small granular impurities smaller than rice grains, such as small stones and sand grains, mixed in the hulled rice. These residual small granular impurities seriously affect the quality of rice and reduce the quality of the subsequent processed products. Therefore, an impurity removal device for a rice huller is proposed to address the above problems. During the hulling process of paddy, first, the paddy to be hulled is put into the hulling chamber in the box body 2 through the feed hopper 30. The second motor 25 is started to make the third pulley 26 rotate. With the cooperation of the second conveyor belt 27, the hulling roller 22 rotates. Through the high-speed rotation of the hulling roller 22, the hulling treatment of paddy can be achieved. When removing the impurities mixed in the hulled rice, the lighter impurities after hulling are sucked out of the box body 2 by the suction fan 28 using wind power and collected by the collection cloth bag 29. The heavier large and small granular impurities fall onto the first filter plate 3. The first motor 12 is started. With the cooperation of the first conveyor belt 11, the two first pulleys 10 drive the two rotating rods 9 to rotate, and then the cam 13 also rotates. With the cooperation of the spring 7 and the lifting rod 8, the two cams 13 drive the first filter plate 3 and the second filter plate 4 to move up and down, thereby improving the filtering effect. The first filter plate 3 intercepts large granular impurities such as straws and rice husks, and the large granular impurities will be discharged along the second filter plate 4 through the large granular impurity discharge port 15. The small granular impurities and smooth rice grains will quickly fall through the filter holes onto the second filter plate 4. The second filter plate 4 intercepts the smooth rice grains, and the rice grains after impurity removal will be discharged through the guide hopper 19, causing the small granular impurities to quickly fall through the filter holes onto the inclined guide table 14 and finally discharged through the small granular impurity discharge port 17. This structural design can remove the large and small granular impurities and lighter impurities mixed in the hulled rice, thereby thoroughly cleaning the impurities, improving the cleanliness and quality of the rice grains, and ensuring the processing quality of the subsequent products.

[0025] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0026] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A rice hulling machine impurity removal device, characterized in that: The invention comprises a base (1); a box body (2) is fixedly connected to the base (1); a first filter screen plate (3) and a second filter screen plate (4) are arranged in sequence from top to bottom in the box body (2); an oscillating mechanism is arranged below the first filter screen plate (3) and the second filter screen plate (4); the oscillating mechanism comprises two rotating rods (9); two rotating rods (9) are rotatably installed in the box body (2); cams (13) are sleeved on the outer circumferential surfaces of the two rotating rods (9); and the outer surfaces of the two cams (13) are in contact with the bottom side walls of the first filter screen plate (3) and the second filter screen plate (4); one end of the two rotating rods (9) is sleeved with a first belt pulley (10); the outer surfaces of the two first belt pulleys (10) are sleeved with a first conveyor belt (11); the first belt pulley (11) is sleeved on the outer surfaces of the two first belt pulleys (10); and the first belt pulley (11) is sleeved on the outer surfaces of the two first belt pulleys (10). A first motor (12) is installed on the side wall of the box body (2), the output end of the first motor (12) is connected to one end of one of the rotating rods (9), an inclined material guide platform (14) is fixedly connected to the bottom of the box body (2), eight short plates (5) are fixedly connected to the inner wall of the box body (2), four short plates (5) form a group, each short plate (5) is fixedly connected to a sleeve (6), the bottom end of each sleeve (6) is fixedly connected to a spring (7), and a lifting rod (8) is fixed to the other end of the spring (7), the top end of each group of lifting rods (8) is correspondingly fixedly connected to the bottom side wall of the first filter screen plate (3) and the second filter screen plate (4), and one side of the box body (2) is provided with a large particle impurity discharge port (15), a rice grain discharge port (16) and a small particle impurity discharge port (17) in sequence from top to bottom.

2. The impurity removing device for a rice hulling machine according to claim 1, characterized in that: A large particle impurity collecting groove (18) is fixedly connected to the bottom side of the port of the large particle impurity discharge port (15), a guide hopper (19) is fixedly connected to the port of the rice grain discharge port (16), and a small particle impurity collecting groove (20) is arranged at the bottom side of the port of the small particle impurity discharge port (17).

3. The impurity removing device for a rice hulling machine according to claim 1, characterized in that: The top end of the box body (2) is connected to a feed hopper (30), a rotating shaft (21) is rotatably mounted inside the box body (2), a shelling roller (22) is mounted on the outer circumferential surface of the rotating shaft (21), a plurality of barbs (23) are fixed on the inner wall of the top end of the box body (2), and the barbs (23) on the inner wall of the box body (2) and the barbs (23) on the shelling roller (22) are arranged in an alternating manner.

4. The impurity removing device for a rice hulling machine according to claim 3, characterized in that: A second pulley (24) is sleeved on one end of the rotating shaft (21), a support seat is fixedly connected to the base (1), and a second motor (25) is installed on the support seat.

5. The impurity removing device for a rice hulling machine according to claim 4, characterized in that: A third belt pulley (26) is installed at the output end of the second motor (25), and a second conveyor belt (27) is sleeved on the outer surfaces of the second belt pulley (24) and the third belt pulley (26).

6. The impurity removing device for a rice hulling machine according to claim 1, characterized in that: A through opening is provided on one side of the box body (2) away from the second pulley (24), a suction fan (28) is installed at the end of the through opening, and a collecting bag (29) is movably installed on the shell of the suction fan (28).

Images