A rice husking machine

Abstract

The invention discloses a rice husker. When in use, rice can be added through two feeding hoppers and husked through a husking device, and then the husks and brown rice enter a screening chamber, and an exhaust fan installed outside an air outlet channel realizes suction of the husks, and the brown rice is discharged from a discharge hopper. Since two feeding hoppers and two husking devices are provided, when the rice husker processes a certain amount of rice per unit time, the processing amount of a single husking device can be reduced, and the husking effect can be improved. When the husks are sucked out in the air outlet channel, the amount of husks processed per unit time on both sides of a separating shell is small, and the husks can be sucked out more efficiently. At the same time, an adjusting device is provided to realize opening one of the air outlets alone or opening both air outlets at the same time, so that the husking device on one side can be used alone or the two husking devices can be used at the same time, and when the husking device on one side is used alone, the suction effect on the husks can be improved by increasing the negative pressure.

Description

Technical Field

[0001] The invention relates to the technical field of grain processing equipment, in particular to a rice husker. Background Art

[0002] The rice processing process is usually divided into cleaning, husking, milling, grading and finished product processing. The rice husker corresponding to rice husking is a grain processing equipment that removes the husks from rice and makes brown rice. When the rice husker separates the rice into husks and brown rice, it is necessary to screen and remove the husks by wind when they fall.

[0003] For example, a Chinese patent with authorization announcement number CN112808584B and authorization announcement date of January 25, 2022 discloses a rice husking machine with a screening function. However, in the process of screening husks from brown rice, due to the large amount of husks and brown rice mixed together, some husks are easily screened, which ultimately leads to poor screening effect of husks. Summary of the invention

[0004] The purpose of the present invention is to provide a rice husker which can improve the screening effect of rice husks.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a rice husker, comprising a casing, a feed hopper arranged in the casing, a husking device arranged in the casing and husking the incoming rice, a screening chamber arranged in the casing and used to receive husks and brown rice after husking, a discharge hopper communicated with the screening chamber and for discharging brown rice, and an air outlet channel communicated with the screening chamber and used to absorb the husks, wherein two feed hoppers are symmetrically arranged, two husking devices are symmetrically arranged and are respectively connected between the feed hopper and the screening chamber, the discharge hopper is connected at the lower middle part of the screening chamber, and the air outlet channel is connected at the upper middle part of the screening chamber; a partition shell is arranged in the middle part of the screening chamber between the discharge hopper and the air outlet channel, two air outlets respectively connected to the air outlet channel are formed on both sides of the partition shell and the top of the screening chamber, and an adjusting device for opening one of the air outlets separately or opening both air outlets at the same time is arranged between the screening chamber and the partition shell.

[0006] The present invention is further configured as follows: the top of the partition shell is configured in an inwardly concave arc shape, and the adjusting device includes an arc-shaped baffle rotatably connected to the screening chamber at one end close to the air outlet channel, and a driving mechanism arranged in the partition shell and driving the arc-shaped baffle to rotate; when the arc-shaped baffle is rotated toward both ends to an extreme state, the arc-shaped baffle can block one of the air outlets, and when the arc-shaped baffle is rotated to an intermediate state, both ends of the arc-shaped baffle do not protrude from the inwardly concave area at the top of the partition shell.

[0007] The present invention is further configured as follows: a track is provided on the rear side of the screening chamber for the arc-shaped baffle to be embedded and rotated, an opening is provided on the top of the partition shell, and the driving mechanism includes an arc-shaped rack provided on the outside of the arc-shaped baffle, a gear rotatably connected in the partition shell and meshing with the arc-shaped rack from the opening, and a reduction motor is provided in the partition shell and the output shaft is linked to the gear.

[0008] The present invention is further configured as follows: an air inlet is provided at the partition shell, and filter plates for filtering the air entering the screening chamber are provided on both sides of the partition shell.

[0009] The present invention is further configured as follows: inwardly recessed annular mounting grooves for embedding the filter plate are arranged on both sides of the partition shell, a plurality of limit shafts passing through the corners of the filter plate are arranged in the annular mounting grooves, the limit shafts pass through the end portions of the filter plate and are threadedly connected to limit nuts, and a buffer spring is sleeved on the limit shafts to interfere with the annular mounting grooves and the filter plate.

[0010] The present invention is further configured as follows: guiding vibration mechanisms for receiving husks and brown rice from the husking device are respectively arranged on both sides of the partition shell, the guiding vibration mechanisms include a guide plate at one end connected to the screening chamber near the husking device, an adjusting rod with one end hinged on the back of the guide plate and the other end passing through the side of the screening chamber, an adjusting knob threadedly connected to the end of the adjusting rod passing through the screening chamber, a compression spring sleeved on the adjusting rod and with both ends pressed against the guide plate and the screening chamber, a waist-shaped hole for the adjusting rod to pass through and for enabling the adjusting rod to move with the vibration of the guide plate, and the brown rice sliding down from the guide plate hits the side of the partition shell.

[0011] The present invention is further configured such that when the adjusting knob is adjusted to the end of the adjusting rod, the guide plate rotates upward under the elastic force of the compression spring to close the passage for the husks and brown rice to enter.

[0012] In summary, the present invention has the following beneficial effects:

[0013] 1. When in use, rice can be added through two feed hoppers and husked through the husking device, and then the husks and brown rice enter the screening chamber, and the exhaust fan installed outside the air outlet channel realizes suction of the husks, and the brown rice is discharged from the discharge hopper; because two feed hoppers and two husking devices are provided, when the rice husking machine processes a certain amount of rice per unit time, the processing capacity of a single husking device can be reduced, and the husking effect can be improved, and when the husks are sucked out of the air outlet channel, the amount of husks processed per unit time on both sides of the separating shell is small, and the husks can be sucked out more efficiently; at the same time, by providing an adjustment device to realize opening one of the air outlets alone or opening both air outlets at the same time, it is possible to realize using the husking device on one side alone or using two husking devices at the same time, and when using the husking device on one side alone, the suction effect of the husks can be improved by increasing the negative pressure;

[0014] 2. The arc baffle rotates under the action of the driving mechanism, thereby isolating one of the air outlets or not isolating any air outlet, so as to realize the simultaneous use of two shelling devices, or to increase the negative pressure when sucking out the husks when a single shelling device is used; the driving mechanism includes an arc-shaped rack arranged on the outside of the arc-shaped baffle, a gear rotatably connected in the partition shell and meshing with the arc-shaped rack from the opening, and a reduction motor arranged in the partition shell and the output shaft of which is linked to the gear, so as to drive the arc-shaped baffle to rotate and adjust the position;

[0015] 3. An air inlet is provided at the partition shell, and filter plates are provided on both sides of the partition shell to filter the wind entering the screening chamber, so that the wind can enter from both sides of the partition shell. At this time, the wind entering from the filter plate has a blowing effect on the husks and brown rice falling from the husking device, so that the husks can be better sucked out; at the same time, the elastic connection of the filter plate can achieve vibration under the action of wind force and the impact of brown rice, further improving the vibration dispersion effect on the husks and brown rice, and further improving the suction effect on the husks;

[0016] 4. The guiding vibration mechanism comprises a guiding plate, an adjusting rod, an adjusting knob and a compression spring, so that the guiding vibration mechanism can vibrate under the impact of the brown rice and the husk and the wind force, so as to improve the vibration dispersion effect on the brown rice and the husk; at the same time, the brown rice sliding off the guiding plate may hit the side of the partition shell, and the wind entering from the filter plate on the side of the partition shell further blows up the husk in the brown rice, and finally further improves the suction effect on the husk; at the same time, when the adjusting knob is adjusted to the end of the adjusting rod, the guiding plate rotates upward under the elastic force of the compression spring to close the passage for the husk and the brown rice to enter. When a single shelling device is used, the passage for the husk and the brown rice to enter on the other side can be closed to increase the negative pressure in the screening chamber. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a structural cross-sectional view of the present invention;

[0019] Figure 3 It is a schematic diagram of the structure of the present invention in the screening chamber and out of the discharge hopper;

[0020] Figure 4 yes Figure 3 A partial enlarged view of point A.

[0021] Figure numerals: 1. casing; 2. feed hopper; 3. shelling device; 4. screening chamber; 41. air outlet; 42. track; 43. waist-shaped hole; 5. discharge hopper; 6. air outlet channel; 7. partition shell; 71. opening; 72. air inlet; 73. filter plate; 74. annular mounting groove; 75. limit shaft; 76. limit nut; 77. buffer spring; 8. adjustment device; 81. arc baffle; 82. driving mechanism; 821. arc rack; 822. gear; 823. reduction motor; 9. guide vibration mechanism; 91. guide plate; 92. adjustment rod; 93. adjustment knob; 94. compression spring. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0023] Embodiment: A rice husking machine, such as Figure 1 and Figure 2 As shown, it includes a casing 1, a feeding hopper 2 arranged in the casing 1, a husking device 3 arranged in the casing 1 and used to husk the incoming rice, a screening chamber 4 arranged in the casing 1 and used to receive husks and brown rice after husking, a discharging hopper 5 communicated with the screening chamber 4 and for discharging brown rice, and an air outlet channel 6 communicated with the screening chamber 4 and used to absorb the husks.

[0024] like Figure 2 As shown, two feed hoppers 2 are symmetrically arranged, two shelling devices 3 are symmetrically arranged and are respectively connected between the feed hopper 2 and the screening chamber 4, the discharge hopper 5 is connected at the lower middle part of the screening chamber 4, and the air outlet channel 6 is connected at the upper middle part of the screening chamber 4; a partition shell 7 is arranged in the middle part of the screening chamber 4 and is located between the discharge hopper 5 and the air outlet channel 6, and two air outlets 41 respectively connected to the air outlet channel 6 are formed on both sides of the partition shell 7 and the top of the screening chamber 4, and an adjusting device 8 for opening one of the air outlets 41 individually or opening both air outlets 41 at the same time is arranged between the screening chamber 4 and the partition shell 7.

[0025] like Figures 2 to 4As shown, the top of the partition housing 7 is arranged in an inwardly concave arc shape, and the regulating device 8 includes an arc baffle 81 rotatably connected to one end of the screening chamber 4 near the air outlet channel 6, and a driving mechanism 82 arranged in the partition housing 7 and driving the arc baffle 81 to rotate. When the arc baffle 81 rotates to the extreme state toward both ends, the arc baffle 81 can achieve the isolation of one of the air outlets 41, and when the arc baffle 81 rotates to the middle state, the two ends of the arc baffle 81 do not protrude from the inwardly concave area at the top of the partition housing 7. The rear side of the screening chamber 4 is provided with a track 42 for the arc baffle 81 to be inserted and rotated, and the top of the partition housing 7 is provided with an opening 71. The driving mechanism 82 includes an arc rack 821 arranged outside the arc baffle 81, a gear 822 rotatably connected in the partition housing 7 and meshing with the arc rack 821 from the opening 71, and a reduction motor 823 arranged in the partition housing 7 and the output shaft of which is linked to the gear 822.

[0026] like Figure 3 and Figure 4 As shown, the partition housing 7 is provided with an air inlet 72, and filter plates 73 for filtering the air entering the screening chamber 4 are provided on both sides of the partition housing 7. An inwardly recessed annular mounting groove 74 for the filter plates 73 to be embedded is provided on both sides of the partition housing 7, and a plurality of limiting shafts 75 passing through the corners of the filter plates 73 are provided in the annular mounting groove 74. The limiting shafts 75 pass through the ends of the filter plates 73 and are threadedly connected to the limiting nuts 76. The limiting shafts 75 are sleeved with buffer springs 77 that interfere with the annular mounting groove 74 and the filter plates 73.

[0027] like Figure 2 and Figure 3 As shown, guide vibration mechanisms 9 for receiving husks and brown rice from the husking device 3 are respectively provided on both sides of the partition housing 7. The guide vibration mechanism 9 includes a guide plate 91 connected to the screening chamber 4 near the husking device 3 at one end, an adjustment rod 92 hinged at one end on the back of the guide plate 91 and passing through the side of the screening chamber 4 at the other end, an adjustment knob 93 threadedly connected to the end of the adjustment rod 92 passing through the screening chamber 4, and a compression spring 94 sleeved on the adjustment rod 92 and pressed between the guide plate 91 and the screening chamber 4 at both ends. The screening chamber 4 is provided with a waist-shaped hole 43 for the adjustment rod 92 to pass through and realize the adjustment rod 92 to move with the vibration of the guide plate 91, and the brown rice sliding off the guide plate 91 hits the side of the partition housing 7. When the adjustment knob 93 is adjusted to the end of the adjustment rod 92, the guide plate 91 rotates upward under the elastic force of the compression spring 94 to close the passage for the husks and brown rice to enter.

[0028] Implementation effect: When in use, rice can be added through the two feed hoppers 2 and husked through the husking device 3, and then the husks and brown rice enter the screening chamber 4, and the exhaust fan installed outside the air outlet channel 6 realizes the suction of the husks, and the brown rice is discharged from the discharge hopper 5; because two feed hoppers 2 and two husking devices 3 are provided, when the rice husker processes a certain amount of rice per unit time, the processing capacity of a single husking device 3 can be reduced, and the husking effect can be improved, and when the husks are sucked out of the air outlet channel 6, the amount of husks processed per unit time on both sides of the separating shell 7 is small, and the husks can be sucked out more efficiently; at the same time, by providing an adjustment device 8, it is possible to open one of the air outlets 41 alone or open both air outlets 41 at the same time, so that it is possible to use the husking device 3 on one side alone or use two husking devices 3 at the same time, and when the husking device 3 on one side is used alone, the suction effect of the husks can be improved by increasing the negative pressure.

[0029] The arc-shaped baffle 81 rotates under the action of the driving mechanism 82, thereby isolating one of the air outlets 41 or not isolating any air outlet 41, so as to realize the simultaneous use of two shelling devices 3, or to increase the negative pressure when sucking out the husks when a single shelling device 3 is used; the driving mechanism 82 includes an arc-shaped rack 821 arranged on the outside of the arc-shaped baffle 81, a gear 822 rotatably connected to the partition shell 7 and meshing with the arc-shaped rack 821 from the opening 71, and a reduction motor 823 arranged in the partition shell 7 and the output shaft of which is linked to the gear 822, thereby driving the arc-shaped baffle 81 to rotate and adjust the position.

[0030] An air inlet 72 communicated with the interior of the partition shell 7 is provided at the screening chamber 4 corresponding to the partition shell 7. Filter plates 73 for filtering the wind entering the screening chamber 4 are provided on both sides of the partition shell 7, so that air can enter from both sides of the partition shell 7. At this time, the wind entering from the filter plate 73 has a blowing effect on the husks and brown rice dropped from the husking device 3, so that the husks can be better sucked away; at the same time, the elastic connection of the filter plate 73 allows vibration to be achieved under the action of wind force and the impact of brown rice, further improving the vibration dispersion effect on the husks and brown rice, and further improving the suction effect on the husks.

[0031] The guiding vibration mechanism 9 includes a guiding plate 91, an adjusting rod 92, an adjusting knob 93 and a compression spring 94, so that the guiding vibration mechanism 9 can vibrate under the impact of the brown rice and the husk and the wind force, so as to improve the vibration dispersion effect on the brown rice and the husk; at the same time, the brown rice sliding off the guiding plate 91 may hit the side of the partition shell 7, and the wind entering from the filter plate 73 on the side of the partition shell 7 at this time also further blows up the husk in the brown rice, and finally further improves the suction effect on the husk; at the same time, when the adjusting knob 93 is adjusted to the end of the adjusting rod 92, the guiding plate 91 rotates upward under the elastic force of the compression spring 94 to close the passage for the husk and brown rice to enter. When a single husking device 3 is used, the passage for the husk and brown rice to enter on the other side can be closed to increase the negative pressure in the screening chamber 4.

[0032] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A rice husker, comprising a casing (1), a feed hopper (2) arranged in the casing (1), a husking device (3) arranged in the casing (1) and husking the incoming rice, a screening chamber (4) arranged in the casing (1) and used to receive husks and brown rice after husking, a discharge hopper (5) communicated with the screening chamber (4) and from which the brown rice is discharged, and an air outlet channel (6) communicated with the screening chamber (4) and used to absorb and remove the husks, characterized in that: The feed hopper (2) is symmetrically provided with two, the shelling device (3) is symmetrically provided with two and respectively connected between the feed hopper (2) and the screening chamber (4), the discharge hopper (5) is connected to the lower middle part of the screening chamber (4), and the air outlet channel (6) is connected to the upper middle part of the screening chamber (4); a partition shell (7) is provided in the middle part of the screening chamber (4) and is located between the discharge hopper (5) and the air outlet channel (6); two air outlets (41) respectively connected to the air outlet channel (6) are formed on both sides of the partition shell (7) and the top of the screening chamber (4); and an adjustment device (8) for opening one of the air outlets (41) or both of the air outlets (41) at the same time is provided between the screening chamber (4) and the partition shell (7).

2. A rice husker according to claim 1, characterized in that: The top of the partition shell (7) is arranged in a concave arc shape, and the adjustment device (8) comprises an arc-shaped baffle (81) rotatably connected to one end of the screening chamber (4) close to the air outlet channel (6), and a driving mechanism (82) arranged in the partition shell (7) and driving the arc-shaped baffle (81) to rotate; when the arc-shaped baffle (81) rotates toward both ends to an extreme state, the arc-shaped baffle (81) can block one of the air outlets (41), and when the arc-shaped baffle (81) rotates to an intermediate state, both ends of the arc-shaped baffle (81) do not protrude from the concave area at the top of the partition shell (7).

3. A rice husker according to claim 2, characterized in that: The screening chamber (4) is provided with a track (42) at the rear side for the arc-shaped baffle (81) to be inserted and rotated, the partition shell (7) is provided with an opening (71) at the top, and the driving mechanism (82) comprises an arc-shaped rack (821) arranged outside the arc-shaped baffle (81), a gear (822) rotatably connected in the partition shell (7) and meshing with the arc-shaped rack (821) from the opening (71), and a reduction motor (823) arranged in the partition shell (7) and having an output shaft linked to the gear (822).

4. A rice husker according to claim 2, characterized in that: An air inlet (72) is provided at the partition shell (7), and filter plates (73) for filtering the air entering the screening chamber (4) are provided on both sides of the partition shell (7).

5. A rice husker according to claim 4, characterized in that: The partition shell (7) is provided with inwardly recessed annular mounting grooves (74) for the filter plate (73) to be embedded on both sides, and a plurality of limiting shafts (75) passing through the corners of the filter plate (73) are provided in the annular mounting grooves (74). The limiting shafts (75) pass through the ends of the filter plate (73) and are threadedly connected to limiting nuts (76). The limiting shafts (75) are sleeved with buffer springs (77) that abut between the annular mounting grooves (74) and the filter plate (73).

6. A rice husker according to claim 5, characterized in that: The two sides of the partition shell (7) are respectively provided with guide vibration mechanisms (9) for receiving husks and brown rice from the husking device (3). The guide vibration mechanism (9) comprises a guide plate (91) connected at one end to the screening chamber (4) near the husking device (3), an adjustment rod (92) with one end hinged on the back of the guide plate (91) and the other end passing through the side of the screening chamber (4), an adjustment knob (93) threadedly connected to the end of the adjustment rod (92) passing through the screening chamber (4), and a compression spring (94) sleeved on the adjustment rod (92) and with both ends pressed between the guide plate (91) and the screening chamber (4). The screening chamber (4) is provided with a waist-shaped hole (43) for the adjustment rod (92) to pass through and for enabling the adjustment rod (92) to move along with the vibration of the guide plate (91). The brown rice sliding off the guide plate (91) hits the side of the partition shell (7).

7. A rice husker according to claim 6, characterized in that: When the adjusting knob (93) is adjusted to the end of the adjusting rod (92), the guide plate (91) rotates upward under the elastic force of the compression spring (94) to close the passage for the husks and brown rice to enter.

Images