Vertical rice husking machine

Abstract

When a screening assembly needs to be disassembled and cleaned, firstly, a maintenance door is disassembled, rotation limitation of a limiting assembly on a rotating seat ring is relieved, at the moment, due to the fact that the end face, connected with a rice milling box, of a connecting pipeline is an arc-shaped face, and the center line of the connecting pipeline coincides with the rotating axis of a hollow roller; the screen assemblies can rotate along with the rotating seat ring, the connecting pieces between the left bracket and the right bracket are firstly disassembled in the rotating process, and when the right bracket rotates to the position corresponding to the maintenance door, the right bracket is disassembled, so that the combination of the right bracket and the multiple right screens is taken out from the maintenance door. And when the left bracket rotates to the position corresponding to the maintenance door, the left bracket is disassembled, so that a combination of the left bracket and the multiple left screens is taken out from the maintenance door, finally, the screen assembly is conveniently disassembled and assembled, and the effect that the screen assembly is conveniently disassembled and assembled for cleaning is achieved.

Description

Technical Field

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

[0002] The working principle of the vertical rice mill is as follows: the brown rice obtained after being processed by the rice husker is pushed into the bottom of the rice milling chamber by the feeding device of the vertical rice mill and transported to between the roller assembly and the screen assembly. When the power device drives the roller assembly to rotate, the brown rice moves upward in a spiral along the surface of the roller assembly (there is a spiral channel on the surface of the roller assembly), and friction is generated between the roller assembly and the brown rice, between the screen assembly and the brown rice, and between the brown rice and the brown rice, so that the brown rice is whitened and discharged from the rice outlet pipe; at the same time, the airflow generated by the fan blows from top to bottom into the hollow shaft linked to the power device (the roller assembly is installed on the hollow shaft), flows along the hollow shaft, the roller assembly, and the screen assembly, cools the brown rice and blows out the rice bran, and cooperates with the external bran suction equipment to connect the bran suction pipe of the vertical rice mill, so that the bran powder is quickly discharged from the sieve holes of the screen assembly and sucked away by the external bran suction equipment. For example, the content described in "A Vertical Intelligent Rice Milling Machine" with application publication number CN118384944A and application publication date July 26, 2024.

[0003] After the screen assembly is used for a long time, the surface of the screen assembly will be attached with rice bran due to the humidity of the rice bran. At this time, it needs to be regularly disassembled and cleaned to prevent the growth and reproduction of microorganisms to ensure product quality. However, the existing disassembly and cleaning method has the problem of inconvenience in disassembly and assembly. Summary of the invention

[0004] The object of the present invention is to provide a vertical rice milling machine which has the function of conveniently disassembling and assembling a screen assembly for cleaning.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a vertical rice milling machine, comprising a frame, a rice milling base, a rice milling box arranged on the rice milling base, a hollow roller rotatably connected between the frame and the top of the rice milling box and passing upward through the rice milling base, a roller assembly arranged on the peripheral side of the hollow roller, a screen assembly arranged between the rice milling base and the top of the rice milling box and surrounding the roller assembly, a power device arranged on the frame and driving the hollow roller to rotate, a feeding device arranged on the frame and communicating with the rice milling base and conveying brown rice to between the roller assembly and the screen assembly, a rice outlet pipe arranged above the peripheral side of the rice milling box and communicating with the screen assembly to receive materials from between the roller assembly and the screen assembly, a blower mechanism arranged between the frame and the top of the rice milling box and blowing air out from the hollow roller, a bran suction pipe arranged on the frame and connected to the rice milling base, the rice bran blown out from the screen assembly flows along the cavity between the rice milling box and the screen assembly, The channel of the rice milling base flows to the bran suction pipe, the screen assembly includes a semicircular left bracket, a semicircular right bracket, a plurality of left screens installed on the left bracket, a plurality of right screens installed on the right bracket, and a connector arranged between the left bracket and the right bracket. The right screen located at the top has a connecting port connected to the discharging mechanism, and the right bracket is provided with a connecting pipe corresponding to the connecting port and connected to the rice discharging pipe; a rotating seat ring is rotatably connected to the rice milling base, the bottoms of the left and right brackets are arranged on the rotating seat ring, and a positioning seat ring is arranged on the top of the rice milling box to abut against the inner rings of the tops of the left and right brackets. The end face of the connecting pipe connected to the rice milling box is an arc surface and the center line coincides with the rotation axis of the hollow roller. A limit assembly for limiting or unlocking the rotating seat ring for rotation is arranged between the rice milling box, the rice milling base and the rotating seat ring; a maintenance door for convenient removal of the left and right brackets is detachably arranged on the peripheral side of the rice milling box.

[0006] By adopting the above technical scheme, when the screening assembly needs to be disassembled and cleaned, the maintenance door is first disassembled to release the rotation restriction of the limit assembly on the rotating seat ring. At this time, since the end face of the connecting pipe connected to the rice milling box is an arc-shaped surface and the center line coincides with the rotation axis of the hollow roller, the screen assembly can rotate with the rotating seat ring. During the rotation process, the connecting parts between the left bracket and the right bracket are first disassembled. When the right bracket rotates to the position corresponding to the maintenance door, the right bracket is disassembled, so that the combination of the right bracket and multiple right screens is taken out from the maintenance door. When the left bracket rotates to the position corresponding to the maintenance door, the left bracket is disassembled, so that the combination of the left bracket and multiple left screens is taken out from the maintenance door, and finally the screen assembly is conveniently disassembled and installed, so as to achieve the effect of facilitating the disassembly and assembly of the screen assembly for cleaning.

[0007] The present invention is further configured as follows: the limit assembly comprises a bracket arranged on the inner side of the rice milling base, two telescopic shafts arranged on the bracket and telescopically extending in the direction of approaching or moving away from the rotating seat ring, a first compression spring arranged between the telescopic shaft and the bracket and driving the telescopic shaft to move downward away from the rotating seat ring, and a limit block arranged at the end of the two telescopic shafts, a limit groove corresponding to the limit block is arranged on the circumferential side of the rotating seat ring, and a linkage assembly is arranged between the telescopic shaft and the maintenance door to overcome the elastic force of the first compression spring during the installation of the maintenance door so that the limit block is embedded in the limit groove.

[0008] By adopting the above technical solution, the linkage assembly cancels its function during the disassembly of the maintenance door, and the first compression spring drives the limit seat to automatically separate from the limit groove during the resetting process, thereby unlocking the limit on the rotating seat ring, so that the rotating seat ring and the screen assembly can be rotated and disassembled. At the same time, during the installation of the maintenance door, the linkage assembly overcomes the elastic force of the first compression spring so that the limit block is embedded in the limit groove, thereby limiting the rotation of the rotating seat ring to ensure that the connecting pipe can be aligned with the rice outlet pipe.

[0009] The present invention is further configured as follows: two vertical rails are respectively arranged on both sides of the rice milling box, the length of the vertical rails is less than 10 cm, two lifting blocks are respectively arranged on both sides of the maintenance door and are embedded downward in the vertical rails during the installation of the maintenance door, and the vertical rails are threadedly connected with locking limit bolts for embedding in the holes of the lifting blocks; the linkage assembly includes a first wedge block arranged at the end of the telescopic shaft away from the rotating seat ring, and a second wedge block is arranged on the inner side of the maintenance door and simultaneously conflicts with the two first wedge blocks, and when the lifting block of the maintenance door moves downward along the vertical rail to be in place, the second wedge block drives the first wedge block to move to overcome the elastic force of the first compression spring.

[0010] By adopting the above technical solution, after the maintenance door is installed, the two lifting blocks are embedded in the vertical track, which makes it convenient to use the locking limit bolts embedded in the holes of the lifting blocks to connect and fix the maintenance door; at the same time, when the lifting block moves downward along the vertical track, it can be ensured that the second wedge block can be aligned with the first wedge block, so that the second wedge block drives the first wedge block to move to overcome the elastic force of the first compression spring.

[0011] The present invention is further configured as follows: a brush assembly is arranged on the side of the rice milling box away from the rice outlet pipe, and the brush assembly comprises a support bar arranged on the inner side of the rice milling box and extending along the vertical direction, and a plurality of brush parts arranged on the support bar and capable of brushing off attachments from the portion of the left screen not covered by the left bracket and the portion of the right screen not covered by the right bracket; during the rotation of the rotating seat ring, the plurality of brush parts brush off attachments from the portion of the left screen not covered by the left bracket and the portion of the right screen not covered by the right bracket, and the connecting pipe does not interfere with the brush assembly during the rotation.

[0012] By adopting the above technical solution, after the maintenance door is disassembled, the rotating seat ring can be rotated, and the rotating seat ring drives the screen assembly to rotate. The bristle part can be used to brush off the attachments on the part of the left screen not covered by the left bracket and the part of the right screen not covered by the right bracket, thereby playing the function of regularly cleaning the attachments (attached rice bran); in conjunction with the regular disassembly and cleaning of the screen assembly, the growth and reproduction of microorganisms can be prevented to ensure product quality.

[0013] The present invention is further configured as follows: both ends of the upper end of the support bar are provided with connecting shafts passing through the rice milling box, one end of the connecting shaft passing through the rice milling box is provided with an anti-drop nut, and the connecting shaft is sleeved with a second compression spring pressed between the rice milling box and the support bar.

[0014] By adopting the above technical solution, the support bar can be elastically expanded and contracted due to the setting of the connecting shaft and the second compression spring, so that the support bar can move and retract when encountering the more protruding parts on the left bracket and the right bracket to avoid greater interference.

[0015] The present invention is further configured as follows: a plurality of left sockets are arranged on both sides of the left bracket, a plurality of right sockets are arranged on both sides of the right bracket, left plug pieces are arranged on both sides of the left screen and are plugged into the two left sockets during the deformation process, and right plug pieces are arranged on both sides of the right screen and are plugged into the two right sockets during the deformation process.

[0016] By adopting the above technical solution, the left and right screens are thinner and have a certain degree of elasticity. At this time, the left screen is provided with left plug-ins on both sides, which are inserted into the two left plug-in sleeves during the deformation process, and the right screen is provided with right plug-ins on both sides, which are inserted into the two right plug-in sleeves during the deformation process, thereby realizing the assembly of the left and right screens.

[0017] The present invention is further configured as follows: the connecting member is a plurality of bolts and nuts arranged between the left bracket and the right bracket.

[0018] The present invention is further configured as follows: the cleaning process of the screen assembly includes the following steps: (S1) cleaning without disassembling the machine: by disassembling the maintenance door, the linkage assembly drives the limit assembly to make the rotating seat ring rotatable, thereby driving the screen assembly to rotate, so that the brush assembly can brush off the attachments on the part of the left screen that is not covered by the left bracket and the part of the right screen that is not covered by the right bracket, and the attachments after brushing are blown toward the rice bran channel during subsequent processing; (S2) cleaning by disassembling the machine: by disassembling the maintenance door, the linkage assembly drives the limit assembly to make the rotating seat ring rotatable, and remove the connecting piece between the left bracket and the right bracket. When the right bracket rotates to the position corresponding to the maintenance door, the right bracket is disassembled, so that the combination of the right bracket and multiple right screens is taken out from the maintenance door. When the left bracket rotates to the position corresponding to the maintenance door, the left bracket is disassembled, so that the combination of the left bracket and multiple left screens is taken out from the maintenance door for disassembly cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a front view of the present invention;

[0020] Figure 2 It is a left side view of the present invention;

[0021] Figure 3 It is a schematic diagram of the structural explosion of the maintenance door in the present invention;

[0022] Figure 4 It is a schematic diagram of the structural explosion of the maintenance door and the screen assembly in the present invention;

[0023] Figure 5 Schematic diagram of the structure of the screen assembly in the present invention (the structure after the connector 65 is deleted);

[0024] Figure 6 yes Figure 5 A local enlarged view at A in the figure;

[0025] Figure 7 It is a partial structural schematic diagram of the rice milling base, maintenance door and screen assembly in the present invention;

[0026] Figure 8 yes Figure 7 A local enlarged view at position B in the figure;

[0027] Fig. 9 This is a partial enlarged view of point C in 4.

[0028] Reference numerals: 1, frame; 2, rice milling base; 21, rotating seat ring; 211, limiting groove; 3, rice milling box; 31, positioning seat ring; 32, maintenance door; 321, lifting block; 33, vertical track; 34, locking limiting bolt; 4, hollow roller; 5, milling roller assembly; 6, screen assembly; 61, left bracket; 611, left plug sleeve; 62, right bracket; 621, connecting pipe; 622, right plug sleeve; 63, left screen; 631, left plug-in sheet; 64, right screen; 641, connecting port; 64 2. Right plug-in piece; 65. Connecting piece; 7. Power device; 8. Feeding device; 9. Rice outlet pipe; 10. Blowing mechanism; 11. Brans suction pipe; 12. Limiting assembly; 121. Bracket; 122. Telescopic shaft; 123. First compression spring; 124. Limiting block; 13. Linkage assembly; 131. First wedge block; 132. Second wedge block; 14. Brush assembly; 141. Support bar; 142. Brush part; 143. Connecting shaft; 144. Anti-slip nut; 145. Second compression spring. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Embodiment: A vertical rice milling machine, such as Figures 1 to 4 As shown, it includes a frame 1, a rice milling base 2, a rice milling box 3 arranged on the rice milling base 2, a hollow roller 4 rotatably connected between the frame 1 and the top of the rice milling box 3 and passing upward through the rice milling base 2, a milling roller assembly 5 arranged on the peripheral side of the hollow roller 4, a screen assembly 6 arranged between the rice milling base 2 and the top of the rice milling box 3 and surrounding the milling roller assembly 5, a power device 7 arranged on the frame 1 and driving the hollow roller 4 to rotate, and a power device 7 arranged on the frame 1 and communicating with the rice milling base 2 and conveying brown rice to the milling roller assembly 5 and the screen assembly The feeding device 8 between the components 6, the rice outlet pipe 9 arranged above the peripheral side of the rice milling box 3 and connected to the screen component 6 to receive the material between the roller assembly 5 and the screen component 6, the blower mechanism 10 arranged between the frame 1 and the top of the rice milling box 3 and allowing the airflow to blow out from the hollow roller 4, and the bran suction pipe 11 arranged on the frame 1 and connected to the rice milling base 2, the rice bran blown out from the screen component 6 flows along the cavity between the rice milling box 3 and the screen component 6 and the channel of the rice milling base 2 to the bran suction pipe 11. The overall structure of the vertical rice milling machine is a prior art, and no more elaboration is made here.

[0031] like Figures 3 to 6As shown, the screen assembly 6 includes a semicircular left bracket 61, a semicircular right bracket 62, a plurality of left screens 63 mounted on the left bracket 61, a plurality of right screens 64 mounted on the right bracket 62, and a connector 65 arranged between the left bracket 61 and the right bracket 62. The right screen 64 located at the top has a connecting port 641 connected to the discharging mechanism, and the right bracket 62 is provided with a corresponding connecting port 641 and a connecting pipe 621 connected to the rice outlet pipe 9. A plurality of left plug sleeves 611 are arranged on both sides of the left bracket 61, a plurality of right plug sleeves 622 are arranged on both sides of the right bracket 62, a left plug sheet 631 inserted into the two left plug sleeves 611 during the deformation process is arranged on both sides of the left screen 63, and a right plug sheet 642 inserted into the two right plug sleeves 622 during the deformation process is arranged on both sides of the right screen 64. The connector 65 is a plurality of bolts and nuts arranged between the left bracket 61 and the right bracket 62.

[0032] like Figure 3 , Figure 7 and Figure 8 As shown, a rotating seat ring 21 is rotatably connected to the rice milling base 2 (rotatably connected through a bearing), the bottoms of the left bracket 61 and the right bracket 62 are arranged on the rotating seat ring 21 (fixed by bolts, but not shown in the figure), and a positioning seat ring 31 is arranged on the top of the rice milling box 3 to abut against the inner ring of the top of the left bracket 61 and the right bracket 62. The end surface of the connecting pipe 621 connected to the rice milling box 3 is an arc surface and the center line coincides with the rotation axis of the hollow roller 4. A limiting component 12 is arranged between the rice milling box 3, the rice milling base 2 and the rotating seat ring 21 to limit or unlock the rotating seat ring 21 for rotation. A maintenance door 32 is detachably arranged on the peripheral side of the rice milling box 3 to facilitate the removal of the left bracket 61 and the right bracket 62. The limiting assembly 12 includes a bracket 121 arranged on the inner side of the rice milling base 2, two telescopic shafts 122 arranged on the bracket 121 and telescopically arranged in a direction close to or away from the rotating seat ring 21, a first compression spring 123 arranged between the telescopic shaft 122 and the bracket 121 and driving the telescopic shaft 122 to move downward away from the rotating seat ring 21, and a limiting block 124 arranged at the end of the two telescopic shafts 122. A limiting groove 211 corresponding to the limiting block 124 is arranged on the circumferential side of the rotating seat ring 21. A linkage assembly 13 is arranged between the telescopic shaft 122 and the maintenance door 32 to overcome the elastic force of the first compression spring 123 during the installation of the maintenance door 32 so that the limiting block 124 is embedded in the limiting groove 211.

[0033] like Figure 4 , Figures 7 to 9As shown, two vertical rails 33 are respectively provided on both sides of the rice milling box 3, and the length of the vertical rails 33 is less than 10 cm. Two lifting blocks 321 are respectively provided on both sides of the maintenance door 32, which are embedded downward in the vertical rails 33 during the installation of the maintenance door 32. The vertical rails 33 are threadedly connected with locking limit bolts 34 for embedding into the holes of the lifting blocks 321; the linkage assembly 13 includes a first wedge-shaped block 131 arranged at the end of the telescopic shaft 122 away from the rotating seat ring 21, and a second wedge-shaped block 132 arranged on the inner side of the maintenance door 32 and simultaneously in conflict with the two first wedge-shaped blocks 131. In the process that the lifting block 321 of the maintenance door 32 moves downward along the vertical rail 33 to be in place, the second wedge-shaped block 132 drives the first wedge-shaped block 131 to move to overcome the elastic force of the first compression spring 123.

[0034] like Figure 4 , Figure 5 and Fig. 9 As shown, a brush assembly 14 is provided on the side of the rice milling box 3 away from the rice outlet pipe 9, and the brush assembly 14 includes a support bar 141 provided inside the rice milling box 3 and extending in the vertical direction, and a plurality of brush parts 142 provided on the support bar 141 and used to brush away the attachments from the portion of the left screen 63 not covered by the left bracket 61 and the portion of the right screen 64 not covered by the right bracket 62. During the rotation of the rotating seat ring 21, the plurality of brush parts 142 brush away the attachments from the portion of the left screen 63 not covered by the left bracket 61 and the portion of the right screen 64 not covered by the right bracket 62, and the connecting pipe 621 does not interfere with the brush assembly 14 during the rotation. Connecting shafts 143 passing through the rice milling box 3 are provided at both ends of the upper end of the support bar 141, and an anti-slip nut 144 is provided at one end of the connecting shaft 143 passing through the rice milling box 3, and a second compression spring 145 is sleeved on the connecting shaft 143 and pressed between the rice milling box 3 and the support bar 141.

[0035] The cleaning process of the screen assembly 6 includes the following steps: (S1) Cleaning without disassembling the machine: by disassembling the maintenance door 32, the linkage assembly 13 drives the action on the limit assembly 12, so that the rotating seat ring 21 can rotate, thereby driving the screen assembly 6 to rotate, so that the brush assembly 14 brushes the attachments on the part of the left screen 63 not covered by the left bracket 61 and the part of the right screen 64 not covered by the right bracket 62, and the attachments after brushing are blown toward the rice bran channel in the subsequent processing process; (S2) Cleaning without disassembling the machine: by disassembling the maintenance door 32, the linkage assembly 13 drives the action on the limit assembly 12, so that the rotating seat ring 21 can rotate, thereby driving the screen assembly 6 to rotate, so that the brush assembly 14 brushes the attachments on the part of the left screen 63 not covered by the left bracket 61 and the part of the right screen 64 not covered by the right bracket 62, and the attachments after brushing are blown toward the rice bran channel in the subsequent processing process; Component 13 drives the limit assembly 12 so that the rotating seat ring 21 can rotate, and the connecting component 65 between the left bracket 61 and the right bracket 62 is removed. When the right bracket 62 rotates to the position corresponding to the maintenance door 32, the right bracket 62 is disassembled, so that the combination of the right bracket 62 and the plurality of right screens 64 is taken out from the maintenance door 32. When the left bracket 61 rotates to the position corresponding to the maintenance door 32, the left bracket 61 is disassembled, so that the combination of the left bracket 61 and the plurality of left screens 63 is taken out from the maintenance door 32 for disassembly and cleaning.

[0036] Implementation effect: When the screening assembly needs to be disassembled and cleaned, the maintenance door 32 is first disassembled to release the rotation restriction of the limit assembly 12 on the rotating seat ring 21. At this time, because the end surface of the connecting pipe 621 connected to the rice milling box 3 is an arc surface and the center line coincides with the rotation axis of the hollow roller 4, the screen assembly 6 can rotate with the rotating seat ring 21. During the rotation process, the connecting piece 65 between the left bracket 61 and the right bracket 62 is first disassembled. When the right bracket 62 rotates to the position corresponding to the maintenance door 32, the right bracket 62 is disassembled, so that the combination of the right bracket 62 and multiple right screens 64 is taken out from the maintenance door 32. When the left bracket 61 rotates to the position corresponding to the maintenance door 32, the left bracket 61 is disassembled, so that the combination of the left bracket 61 and multiple left screens 63 is taken out from the maintenance door 32, and finally the screen assembly 6 is conveniently disassembled and installed, so as to achieve the effect of convenient disassembly and installation of the screen assembly 6 for cleaning.

[0037] During the disassembly of the maintenance door 32, the linkage assembly 13 is canceled, and the first compression spring 123 is reset to drive the limit seat to automatically separate from the limit groove 211, thereby unlocking the limit on the rotating seat ring 21, so that the rotating seat ring 21 and the screen assembly 6 can be rotated and disassembled. At the same time, during the installation of the maintenance door 32, the linkage assembly 13 overcomes the elastic force of the first compression spring 123 so that the limit block 124 is embedded in the limit groove 211, thereby limiting the rotation of the rotating seat ring 21 to ensure that the connecting pipe 621 can be aligned with the rice outlet pipe 9.

[0038] After the maintenance door 32 is installed, the two lifting blocks 321 are embedded in the vertical track 33, so that the locking limit bolts 34 are embedded in the holes of the lifting blocks 321 to realize the connection and fixation of the maintenance door 32; at the same time, when the lifting block 321 moves downward along the vertical track 33, it can be ensured that the second wedge block 132 can be aligned with the first wedge block, so that the second wedge block 132 drives the first wedge block 131 to move to overcome the elastic force of the first compression spring 123. After the maintenance door 32 is disassembled, the rotating seat ring 21 can be rotated, and the rotating seat ring 21 drives the screen assembly 6 to rotate, and the bristle part 142 can be used to brush off the attachments of the left screen 63 not covered by the left bracket 61 and the right screen 64 not covered by the right bracket 62, thereby playing the function of regularly cleaning the attachments (attached rice bran); in conjunction with the regular disassembly and cleaning of the screen assembly 6, the growth and reproduction of microorganisms can be prevented to ensure product quality. The support bar 141 can be elastically retracted due to the connection shaft 143 and the second compression spring 145, so that the support bar 141 can move and retract when encountering the more protruding parts on the left bracket 61 and the right bracket 62 to avoid greater interference. The left screen 63 and the right screen 64 are relatively thin and have a certain elasticity. At this time, the left screen 63 is provided with left plug-in sheets 631 inserted into the two left plug-in sleeves 611 during the deformation process on both sides, and the right screen 64 is provided with right plug-in sheets 642 inserted into the two right plug-in sleeves 622 during the deformation process, thereby realizing the assembly of the left screen 63 and the right screen 64.

[0039] 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 vertical rice milling machine, comprising a frame (1), a rice milling base (2), a rice milling box (3) arranged on the rice milling base (2), a hollow roller (4) rotatably connected between the frame (1) and the top of the rice milling box (3) and passing upward through the rice milling base (2), a roller assembly (5) arranged on the peripheral side of the hollow roller (4), a screen assembly (6) arranged between the rice milling base (2) and the top of the rice milling box (3) and surrounding the roller assembly (5), a power device (7) arranged on the frame (1) and driving the hollow roller (4) to rotate, and a power device (7) arranged on the frame (1) and communicating with the rice milling base (2) and conveying brown rice to the roller assembly (5) and the screen assembly (6). The invention relates to a rice milling machine having a feeding device (8) between the rice milling components (6), a rice outlet pipe (9) arranged above the peripheral side of the rice milling box (3) and connected to the screen component (6) to receive materials from between the milling roller component (5) and the screen component (6), a blower mechanism (10) arranged between the frame (1) and the top of the rice milling box (3) and allowing air to be blown out from the hollow roller (4), and a rice bran suction pipe (11) arranged on the frame (1) and connected to the rice milling base (2), wherein the rice bran blown out from the screen component (6) flows along the cavity between the rice milling box (3) and the screen component (6) and the channel of the rice milling base (2) to the rice bran suction pipe (11), characterized in that: The screen assembly (6) comprises a semicircular left bracket (61), a semicircular right bracket (62), a plurality of left screens (63) mounted on the left bracket (61), a plurality of right screens (64) mounted on the right bracket (62), and a connecting piece (65) arranged between the left bracket (61) and the right bracket (62); the right screen (64) located at the top has a connecting port (641) connected to a discharge mechanism; and the right bracket (62) is provided with a connecting pipe (621) corresponding to the connecting port (641) and connected to a rice discharge pipe (9); The rice milling base (2) is rotatably connected with a rotating seat ring (21), the bottoms of the left bracket (61) and the right bracket (62) are arranged on the rotating seat ring (21), the top of the rice milling box (3) is provided with a positioning seat ring (31) which abuts against the inner rings of the tops of the left bracket (61) and the right bracket (62), the end surface of the connecting pipe (621) connected to the rice milling box (3) is an arc surface, and the center line coincides with the rotation axis of the hollow roller (4), and a limiting component (12) for limiting or unlocking the rotation of the rotating seat ring (21) is arranged between the rice milling box (3), the rice milling base (2) and the rotating seat ring (21); The rice milling box (3) is detachably provided with a maintenance door (32) on the periphery thereof for conveniently taking out the left bracket (61) and the right bracket (62).

2. A vertical rice mill according to claim 1, characterized in that: The limiting assembly (12) comprises a bracket (121) arranged on the inner side of the rice milling base (2), two telescopic shafts (122) arranged on the bracket (121) and telescopically arranged in a direction close to or away from the rotating seat ring (21), a first compression spring (123) arranged between the telescopic shaft (122) and the bracket (121) and driving the telescopic shaft (122) to move downward in a direction away from the rotating seat ring (21), and a limiting block (124) arranged at the end of the two telescopic shafts (122); a limiting groove (211) corresponding to the limiting block (124) is arranged on the circumference of the rotating seat ring (21); and a linkage assembly (13) is arranged between the telescopic shaft (122) and the maintenance door (32) to overcome the elastic force of the first compression spring (123) during the installation of the maintenance door (32) so that the limiting block (124) is embedded in the limiting groove (211).

3. A vertical rice mill according to claim 2, characterized in that: Two vertical rails (33) are respectively arranged on both sides of the rice milling box (3), and the length of the vertical rails (33) is less than 10 cm. Two lifting blocks (321) are respectively arranged on both sides of the maintenance door (32) and are embedded downward in the vertical rails (33) during the installation of the maintenance door (32). The vertical rails (33) are threadedly connected with locking limit bolts (34) for embedding in holes of the lifting blocks (321); the linkage assembly (13) includes A first wedge-shaped block (131) is arranged at one end of the telescopic shaft (122) away from the rotating seat ring (21), and a second wedge-shaped block (132) is arranged on the inner side of the maintenance door (32) and is in contact with the two first wedge-shaped blocks (131) at the same time. When the lifting block (321) of the maintenance door (32) moves downward along the vertical track (33) to a position, the second wedge-shaped block (132) drives the first wedge-shaped block (131) to move to overcome the elastic force of the first compression spring (123).

4. A vertical rice mill according to claim 3, characterized in that: A brush assembly (14) is arranged on one side of the rice milling box (3) away from the rice outlet pipe (9), and the brush assembly (14) comprises a support bar (141) arranged on the inner side of the rice milling box (3) and extending in the vertical direction, and a plurality of brush parts (142) arranged on the support bar (141) and capable of brushing away attachments from the portion of the left screen (63) not covered by the left bracket (61) and the portion of the right screen (64) not covered by the right bracket (62). During the rotation of the rotating seat ring (21), the plurality of brush parts (142) brush away attachments from the portion of the left screen (63) not covered by the left bracket (61) and the portion of the right screen (64) not covered by the right bracket (62), and the connecting pipe (621) does not interfere with the brush assembly (14) during the rotation.

5. The vertical rice mill according to claim 4, characterized in that: The upper ends of the support bar (141) are provided with connecting shafts (143) passing through the rice milling box (3), one end of the connecting shaft (143) passing through the rice milling box (3) is provided with an anti-drop nut (144), and the connecting shaft (143) is sleeved with a second compression spring (145) pressed between the rice milling box (3) and the support bar (141).

6. A vertical rice mill according to claim 5, characterized in that: A plurality of left plug sleeves (611) are arranged on both sides of the left bracket (61), a plurality of right plug sleeves (622) are arranged on both sides of the right bracket (62), left plug sheets (631) are arranged on both sides of the left screen (63) and are plugged into the two left plug sleeves (611) during the deformation process, and right plug sheets (642) are arranged on both sides of the right screen (64) and are plugged into the two right plug sleeves (622) during the deformation process.

7. The vertical rice mill according to claim 6, characterized in that: The connecting member (65) is a plurality of bolts and nuts arranged between the left bracket (61) and the right bracket (62).

8. The vertical rice mill according to claim 7, characterized in that: The cleaning process of the screen assembly (6) comprises the following steps: (S1) Cleaning without disassembling the machine: by removing the maintenance door (32), the linkage assembly (13) drives the limiting assembly (12), so that the rotating seat ring (21) can rotate, thereby driving the screen assembly (6) to rotate, so that the brush assembly (14) can brush away the attachments on the part of the left screen (63) not covered by the left bracket (61) and the part of the right screen (64) not covered by the right bracket (62), and the attachments after brushing away are blown toward the rice bran channel in the subsequent processing process; (S2) Disassembly and cleaning: by disassembling the maintenance door (32), the linkage assembly (13) drives the limit assembly (12) so that the rotating seat ring (21) can rotate, and the connecting piece (65) between the left bracket (61) and the right bracket (62) is removed. When the right bracket (62) rotates to a position corresponding to the maintenance door (32), the right bracket (62) is disassembled, so that the combination of the right bracket (62) and the plurality of right screens (64) is taken out from the maintenance door (32). When the left bracket (61) rotates to a position corresponding to the maintenance door (32), the left bracket (61) is disassembled, so that the combination of the left bracket (61) and the plurality of left screens (63) is taken out from the maintenance door (32) for disassembly and cleaning.

Images