Spiral feeding system for rice processing and rice processing method

Abstract

The invention relates to the technical field of spiral conveyors, in particular to a spiral feeding system for rice processing and a rice processing method. Comprising an outer cylinder, the lower portion of the outer cylinder communicates with a feeding box, a lead screw lifting module is installed on the outer cylinder, a lifting frame is in transmission connection with the lead screw lifting module, an inner cylinder is installed on the lifting frame, a discharging pipe is installed on the upper portion of the inner cylinder, a discharging valve is installed at the bottom of the outer cylinder, and a corrugated telescopic cylinder communicates between the discharging valve and the inner cylinder; the lifting frame is rotationally connected with a guide shaft rod driven by a double-end motor, and a first vibration guide module is installed on the lifting frame. The conveying and feeding system has the beneficial effects that when the conveying and feeding system works, the conveying stroke of the conveying device can be rapidly changed through stretching or lifting of the inner barrel in the outer barrel, then the adjustability of the conveying and feeding system is effectively improved, the application scene of the conveying and feeding system is increased, and meanwhile vibration dust removal of rice can be synchronously achieved when the conveying system conveys the rice.

Description

Technical Field

[0001] The invention relates to the technical field of screw conveyors, in particular to a screw feeding system for rice processing and a rice processing method. Background Art

[0002] Screw conveyor is a machine that uses a motor to drive the screw to rotate and push materials to achieve the purpose of conveying. It can convey horizontally, inclined or vertically, and has the advantages of simple structure, small cross-sectional area, good sealing, convenient operation, easy maintenance, and convenient closed transportation. Screw conveyors are divided into two types in terms of conveying form: shaft screw conveyors and shaftless screw conveyors. Shaft screw conveyors are suitable for non-sticky dry powder materials and small particle materials, especially in grain processing. Screw conveyors are often used.

[0003] When processing rice, feeding operations are required in all links, among which screw conveyors are frequently used in the rice processing industry. In the prior art, a patent document with publication number CN115535547B discloses a screw feeding device for rice processing and a rice processing method, including a feeding mechanism, wherein the feeding mechanism includes a first feeding pipe, a second feeding pipe, a first screw shaft, a second screw shaft and a cross coupling, wherein the first screw shaft is assembled inside the first feeding pipe, the second screw shaft is assembled inside the second feeding pipe, the cross coupling is installed between the first screw shaft and the second screw shaft, and a deflection connecting pipe is assembled between the first feeding pipe and the second feeding pipe.

[0004] The above invention is used in combination with the cross coupling between the first spiral shaft and the second spiral shaft and the deflection connecting pipe between the first feeding pipe and the second feeding pipe. It can change the angle between the first feeding pipe and the second feeding pipe according to different usage requirements, so as to change the transportation path. However, it is not convenient to change the conveying stroke of the conveying device when the above spiral feeding system is working. At the same time, the existing conveying system is not convenient to synchronously realize vibration dust removal of rice when conveying rice. Based on this, the present invention provides a spiral feeding system for rice processing and a rice processing method to solve the problems raised in the above background technology. Summary of the invention

[0005] The present invention aims at the technical problems existing in the prior art and provides a spiral feeding system for rice processing and a rice processing method to solve the problem that the existing spiral feeding system is inconvenient to change the conveying stroke of the conveying device when working, and the existing conveying system is inconvenient to synchronously realize vibration dust removal of rice when conveying rice.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: a spiral feeding system for rice processing, comprising an outer cylinder, the lower part of the outer cylinder is connected with a feed box, a screw lifting module is installed on the outer cylinder, the screw lifting module is connected with a lifting frame in a transmission manner, an inner cylinder is installed on the lifting frame, a discharge pipe is installed on the upper part of the inner cylinder, a discharge valve is installed at the bottom of the outer cylinder, a corrugated telescopic cylinder is connected between the discharge valve and the inner cylinder, a guide shaft driven by a double-headed motor is rotatably connected to the lifting frame, a first vibration guide module group is installed on the lifting frame, an upper vibration frame and a feeding shaft are connected in a transmission manner to the first vibration guide module group, and the feeding shaft is connected to the upper vibration frame and the feeding shaft. The vibration frame is rotatably connected, and a spiral conveying inner blade is installed on the feeding shaft and at a position corresponding to the inner side of the inner cylinder. The spiral conveying inner blade is fitted with the inner cylinder, and dust leakage holes are evenly distributed on the spiral conveying inner blade. A group of feeding ports distributed in a circular array are opened at the lower part of the inner cylinder, and a second vibration guide module group is installed on the outer cylinder, and a lower vibration frame and a rotary feeding frame are transmission-connected on the second vibration guide module group. The rotary feeding frame is rotatably connected to the lower vibration frame, and a spiral conveying outer blade is installed on the rotary feeding frame and at a position corresponding to the inner side of the outer cylinder, and the inner walls of the spiral conveying outer blade are respectively fitted with the inner cylinder and the corrugated telescopic cylinder, and a negative pressure dust suction component cooperating with the outer cylinder and the feeding shaft is installed on the lifting frame.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, the inner cylinder and the outer cylinder are coaxially arranged and the inner cylinder is arranged on the inner side of the outer cylinder, the rotating frame is arranged between the outer cylinder and the inner cylinder, the corrugated telescopic cylinder is a hollow cylindrical structure with openings at both ends, and the corrugated telescopic cylinder has a plastic spring built in it.

[0009] The beneficial effect of adopting the above further scheme is that the structural strength of the corrugated telescopic cylinder is effectively improved by setting the plastic spring inside the corrugated telescopic cylinder. When the inner cylinder is lifted or lowered under the action of the screw lifting module, the corrugated telescopic cylinder is driven to retract and retract. After the corrugated telescopic cylinder is driven to retract and retract, it effectively limits the lifting and conveying area of ​​the outer blade of the spiral conveyor.

[0010] Furthermore, the screw lifting module includes a lifting motor fixed on the outer cylinder and a lifting screw rotatably connected to the outer cylinder, the output shaft end of the lifting motor is transmission-connected to the lifting screw, the lifting screw is transmission-connected to the lifting frame, a guide block slidingly connected to the lifting frame is fixedly mounted on the outer cylinder, the lifting screw and the guide shaft are coaxially arranged, and the axis of the lifting screw is parallel to the axis of the outer cylinder.

[0011] Furthermore, the first vibration guide module includes an upper shaft and a transmission shaft rotatably connected to the lifting frame, the upper shaft is driven by a guide shaft, a missing gear a is fixedly installed on the upper shaft, a vibration transmission tooth plate a transmission-connected to the missing gear a is fixedly installed on the surface of the upper vibration frame, a re-vibration spring a is sleeved on the feeding shaft and at a position corresponding to the position between the upper vibration frame and the outer cylinder, the transmission shaft is transmission-connected to the feeding shaft, and the transmission shaft is transmission-connected to the double-head motor through a first chain belt.

[0012] The beneficial effect of adopting the above further scheme is that when the rice is transported, the guide shaft rotates at a set speed. After the guide shaft rotates, the upper shaft, the missing gear a, the vibration transmission gear plate a and the re-vibration spring a are set, so that the upper vibration frame can reciprocate within the set stroke. The reciprocating vibration of the upper vibration frame can make the feed shaft rotate at a set speed when it rotates. The rotation and vibration of the feed shaft occur synchronously to achieve vibration dust shaking during the spiral conveying of rice. The dust shaken out by the vibration of the inner leaves of the spiral conveyor is collected through the dust suction hole a.

[0013] Furthermore, bevel gears a are fixedly installed on the upper shaft and the guide shaft, and the two bevel gears a are meshed with each other. A driven shaft groove is fixedly opened inside the feed shaft and is slidably connected to the feed shaft. The inner cavity shape of the driven shaft groove and the cross-section of the transmission shaft are both regular polygons.

[0014] The beneficial effect of adopting the above further solution is that, when in use, by setting the inner cavity shape of the driven shaft groove and the cross-section of the transmission shaft, the transmission shaft can continuously drive the feeding shaft when the feeding shaft moves up and down.

[0015] Furthermore, the second vibration guide module includes a sleeve a rotatably connected to the lower vibration frame and a sleeve b rotatably connected to the outer cylinder, the sleeve a and the sleeve b are both driven by the guide shaft, the sleeve a is transmission connected to the rotary conveying frame through a second chain belt, the outer cylinder is rotatably connected to a lower shaft, the lower shaft and the guide shaft are both equipped with bevel gears b, the two bevel gears b are meshed with each other, a missing gear b is fixedly mounted on the lower shaft, a vibration transmission tooth plate b is fixedly mounted on the lower vibration frame, the missing gear b is transmission connected to the vibration transmission tooth plate b, and a re-vibration spring b is sleeved on the rotary conveying frame and corresponds to the position between the lower vibration frame and the outer cylinder.

[0016] Furthermore, the interiors of the shaft sleeve a and the shaft sleeve b are both provided with linkage shaft grooves which are open at both ends and are slidably connected to the guide shaft rod. The cross section of the linkage shaft groove is a regular polygon, and the cross section of the linkage shaft groove is adapted to the shape of the guide shaft rod.

[0017] The beneficial effect of adopting the above further scheme is that when the double-headed motor is working, the guide shaft rotates at a set speed. When the guide shaft rotates, the setting of the sleeve a, the sleeve b, the missing gear b, the re-vibration spring b and the vibration transmission tooth plate b makes it possible for the rotary feeding frame to vibrate at a set frequency when it rotates. Through the vibration of the rotary feeding frame, the outer leaves of the spiral conveyor can vibrate and shake off dust when spirally feeding rice. The miscellaneous dust shaken out by the vibration of the outer leaves of the spiral conveyor is collected through the dust suction hole b.

[0018] Furthermore, a material lifting inclined surface inclined toward the feed inlet is fixedly provided on the outer blade of the spiral conveyor.

[0019] Furthermore, the negative pressure dust suction component includes a negative pressure vacuum cleaner fixed on the lifting frame and a negative pressure flow channel opened on the feeding shaft. The negative pressure end of the negative pressure vacuum cleaner is connected to the negative pressure flow channel through a negative pressure pipe. The feeding shaft is provided with multiple groups of regularly distributed dust suction holes a connected to the negative pressure flow channel. A dust hood is fixedly installed on the outer cylinder. The interior of the outer cylinder is provided with multiple groups of regularly distributed dust suction holes b connected to the inner cavity of the dust hood. The negative pressure end of the negative pressure vacuum cleaner is connected to the inner cavity of the dust hood through a negative pressure bellows.

[0020] A rice processing method, based on any one of the spiral feeding systems for rice processing, comprises the following steps: Start the lifting motor installed on the outer cylinder, and drive the lifting frame to move up and down along the axis of the outer cylinder through the lifting screw, and at the same time drive the inner cylinder and the discharge pipe to rise and fall synchronously, and the corrugated telescopic cylinder will extend and retract with the rise and fall of the inner cylinder; through the rotation of the guide shaft, the upper shaft and the transmission shaft are driven to rotate, and then the feeding shaft is driven to rotate and vibrate back and forth within the set stroke, and the inner blade of the spiral conveyor rotates and vibrates accordingly, and the rice is conveyed upward from the feed port, and the dust is shaken out by vibration; At the same time, the sleeve a and the sleeve b are driven by the rotation of the guide shaft, and the sleeve a drives the rotary conveyor frame to rotate through the second chain belt. The lower shaft is meshed with the bevel gear b on the guide shaft. Through the transmission of the missing gear b and the vibration transmission gear plate b, the rotary conveyor frame vibrates while rotating. The outer blade of the spiral conveyor sucks the rice from the bottom of the inner cylinder and conveys it upward to the inner cylinder through the corrugated telescopic cylinder, and at the same time, the dust is shaken out by vibration. Start the negative pressure vacuum cleaner, which is connected to the negative pressure flow channel through the negative pressure pipe, to absorb the dust collected by the dust suction hole a on the feeding shaft; The dust collection hole b inside the outer cylinder is connected to the negative pressure bellows through the dust collection cover, and the negative pressure vacuum cleaner continues to work to collect the dust inside the outer cylinder; The rice, after being spirally conveyed and vibrated by the inner drum, is output to the next processing link through the discharge pipe.

[0021] The beneficial effects of the present invention are: 1) When the present invention is working, the conveying stroke of the conveying device can be quickly changed by extending or lifting the inner cylinder in the outer cylinder, thereby effectively improving the adjustability of the conveying and feeding system and increasing the applicable scenarios of the device. At the same time, the conveying system can simultaneously realize vibration dust removal of rice when conveying rice.

[0022] 2) In the present invention, when the double-headed motor is working, the guide shaft rotates at a set speed. When the guide shaft rotates, the setting of the shaft sleeve a, the shaft sleeve b, the missing gear b, the re-vibration spring b and the vibration transmission gear plate b allows the rotary feeding frame to vibrate at a set frequency when rotating. Through the vibration of the rotary feeding frame, the outer leaves of the spiral conveyor can vibrate and shake off dust when spirally feeding rice. The miscellaneous dust shaken out by the vibration of the outer leaves of the spiral conveyor is collected through the dust suction hole b.

[0023] 3) In the present invention, when rice is conveyed, the guide shaft rotates at a set speed. After the guide shaft rotates, the upper vibration frame can reciprocate within a set stroke through the arrangement of the upper shaft, the missing gear a, the vibration transmission gear plate a and the re-vibration spring a. The reciprocating vibration of the upper vibration frame can make the feed shaft rotate at a set speed when it rotates. The rotation and vibration of the feed shaft occur synchronously to realize vibration dust shaking during spiral conveying of rice. The dust shaken out by the vibration of the inner leaves of the spiral conveyor is collected through the dust suction hole a. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall structure of a spiral feeding system for rice processing according to the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the local enlarged structure at B in the middle; Figure 4 For the present invention Figure 1 A schematic diagram of the structure from another perspective; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle; Figure 6 For the present invention Figure 1 A schematic diagram of the cross-sectional structure of; Figure 7 For the present invention Figure 6 A schematic diagram of the local enlarged structure at D in the middle; Figure 8 For the present invention Figure 6 A schematic diagram of the local enlarged structure at E in the middle; Fig. 9 For the present invention Figure 6 A schematic diagram of the local enlarged structure at F in the middle; Fig.10 For the present invention Figure 6 A schematic diagram of the local enlarged structure at G in the middle; Fig.11 It is a schematic diagram of the process flow of the present invention.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Outer cylinder; 2. Feed box; 3. Screw lifting module; 4. Lifting frame; 5. Inner cylinder; 6. Discharge pipe; 7. Corrugated telescopic cylinder; 8. Double-head motor; 9. Guide shaft; 10. Upper vibration frame; 11. Feeding shaft; 12. Inner blade of spiral conveyor; 13. Dust leakage hole; 14. Feeding port; 15. Lower vibration frame; 16. Rotary feeding frame; 17. Outer blade of spiral conveyor; 18. Upper shaft; 19. Transmission Moving shaft; 20, missing gear a; 21, vibration transmission gear plate a; 22, re-vibration spring a; 23, missing gear b; 24, vibration transmission gear plate b; 25, re-vibration spring b; 26, negative pressure vacuum cleaner; 27, negative pressure flow channel; 28, dust suction hole a; 29, dust suction hood; 30, dust suction hole b; 31, shaft sleeve b; 32, shaft sleeve a; 33, lower shaft; 34, negative pressure bellows; 35, unloading valve. DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] The present invention provides the following preferred embodiments like Figure 1-11 As shown, a spiral feeding system for rice processing includes an outer cylinder 1, the lower part of the outer cylinder 1 is connected to a feed box 2, a screw lifting module 3 is installed on the outer cylinder 1, and a lifting frame 4 is transmission-connected to the screw lifting module 3; The screw lifting module 3 includes a lifting motor fixed on the outer tube 1 and a lifting screw rotatably connected to the outer tube 1, the output shaft end of the lifting motor is transmission-connected to the lifting screw, the lifting screw is transmission-connected to the lifting frame 4, and a guide block is fixedly installed on the outer tube 1 and slidably connected to the lifting frame 4; The axis of the lifting screw is parallel to the axis of the outer cylinder 1; An inner cylinder 5 is installed on the lifting frame 4, and a discharge pipe 6 is installed on the upper part of the inner cylinder 5; The inner cylinder 5 is coaxially arranged with the outer cylinder 1 and the inner cylinder 5 is arranged on the inner side of the outer cylinder 1; A discharge valve 35 is installed at the bottom of the outer cylinder 1, and a corrugated telescopic cylinder 7 is connected between the discharge valve 35 and the inner cylinder 5; The bellows telescopic cylinder 7 is a hollow cylindrical structure with openings at both ends, and a plastic spring is built into the bellows telescopic cylinder 7 .

[0028] By setting the plastic spring in the bellows telescopic cylinder 7, the structural strength of the bellows telescopic cylinder 7 is effectively improved. When the inner cylinder 5 is lifted or lowered under the action of the screw lifting module 3, the bellows telescopic cylinder 7 is driven to extend and retract. After the bellows telescopic cylinder 7 is driven to extend and retract, the lifting and conveying area of ​​the spiral conveying outer blade 17 is effectively limited. A guide shaft 9 driven by a double-headed motor 8 is rotatably connected to the lifting frame 4, and the lifting screw and the guide shaft are coaxially arranged; A first vibration guide module is installed on the lifting frame 4, and an upper vibration frame 10 and a feed shaft 11 are transmission-connected to the first vibration guide module, and the feed shaft 11 is rotationally connected to the upper vibration frame 10; The first vibration guide module comprises an upper shaft 18 and a transmission shaft 19 rotatably connected to the lifting frame 4, and the upper shaft 18 is driven by the guide shaft 9; Bevel gears a are fixedly mounted on the upper shaft 18 and the guide shaft 9, and the two bevel gears a mesh with each other; A missing gear a20 is fixedly installed on the upper shaft 18, and a vibration transmission tooth plate a21 that is transmission connected to the missing gear a20 is fixedly installed on the surface of the upper vibration frame 10. A re-vibration spring a22 is sleeved on the feed shaft 11 and corresponds to the position between the upper vibration frame 10 and the outer cylinder 1. The transmission shaft 19 is transmission connected to the feed shaft 11, and the transmission shaft 19 is transmission connected to the double-head motor 8 through a first chain belt.

[0029] A driven shaft groove which is slidably connected to the feeding shaft 11 is fixedly provided inside the feeding shaft 11 . The inner cavity shape of the driven shaft groove and the cross section of the transmission shaft 19 are both regular polygons.

[0030] When in use, the inner cavity shape of the driven shaft groove and the cross-section of the transmission shaft 19 are set so that when the feed shaft 11 moves up and down, the transmission shaft 19 can continuously drive the feed shaft 11; When conveying rice, the guide shaft 9 rotates at a set speed. After the guide shaft 9 rotates, the upper shaft 18, the missing gear a20, the vibration transmission tooth plate a21 and the re-vibration spring a22 are set, so that the upper vibration frame 10 can reciprocate within the set stroke. The reciprocating vibration of the upper vibration frame 10 can make the feed shaft 11 rotate at a set speed when it rotates. The rotation and vibration of the feed shaft 11 occur synchronously to achieve vibration dust shaking during spiral conveying of rice. The dust shaken out by the vibration of the inner blades 12 of the spiral conveyor is collected through the dust suction hole a28.

[0031] A spiral conveying inner blade 12 is installed on the feeding shaft 11 and at a position corresponding to the inner side of the inner cylinder 5. The spiral conveying inner blade 12 is in contact with the inner cylinder 5. Dust leakage holes 13 are evenly distributed on the spiral conveying inner blade 12. A group of feeding ports 14 distributed in a circular array are opened at the lower part of the inner cylinder 5. The axis of the dust leakage hole 13 is parallel to the axis of the outer cylinder 1; The outer cylinder 1 is provided with a second vibration guide module group, and the second vibration guide module group is transmission-connected with a lower vibration frame 15 and a rotary conveying frame 16, and the rotary conveying frame 16 is rotationally connected with the lower vibration frame 15; The rotating frame 16 is disposed between the outer cylinder 1 and the inner cylinder 5; The spiral conveying frame 16 is provided with a spiral conveying outer blade 17 at a position corresponding to the inner side of the outer cylinder 1, and the inner wall of the spiral conveying outer blade 17 is respectively fitted with the inner cylinder 5 and the corrugated telescopic cylinder 7; The outer blade 17 of the spiral conveyor is fixedly provided with a material lifting inclined surface inclined toward the feed inlet 14; A negative pressure dust suction component that cooperates with the outer cylinder 1 and the feeding shaft 11 is installed on the lifting frame 4.

[0032] The second vibration guide module includes a sleeve a32 rotatably connected to the lower vibration frame 15 and a sleeve b31 rotatably connected to the outer cylinder 1, and the sleeve a32 and the sleeve b31 are both driven by the guide shaft 9; Both the shaft sleeve a32 and the shaft sleeve b31 are provided with linkage shaft grooves with openings at both ends and slidably connected to the guide shaft rod 9. The cross section of the linkage shaft groove is a regular polygon, and the cross section of the linkage shaft groove is adapted to the shape of the guide shaft rod 9. The shaft sleeve a32 is connected to the rotary frame 16 through a second chain belt. The outer cylinder 1 is rotatably connected to the lower shaft 33. The lower shaft 33 and the guide shaft 9 are both equipped with bevel gears b. The two bevel gears b are meshed with each other. The lower shaft 33 is fixedly equipped with a missing gear b23. The lower vibration frame 15 is fixedly equipped with a vibration transmission tooth plate b24. The missing gear b23 is connected to the vibration transmission tooth plate b24 through transmission. A re-vibration spring b25 is sleeved on the rotary frame 16 and corresponds to the position between the lower vibration frame 15 and the outer cylinder 1.

[0033] When the double-headed motor 8 is working, the guide shaft 9 rotates at a set speed. When the guide shaft 9 rotates, the setting of the sleeve a32, the sleeve b31, the missing gear b23, the re-vibration spring b25 and the vibration transmission tooth plate b24 allows the rotary feeding frame 16 to vibrate at a set frequency when it rotates. Through the vibration of the rotary feeding frame 16, the spiral conveying outer blades 17 can vibrate and shake off dust when spirally feeding rice. The miscellaneous dust shaken out by the vibration of the spiral conveying outer blades 17 is collected through the dust suction hole b30.

[0034] The negative pressure dust suction component includes a negative pressure vacuum cleaner 26 fixed on the lifting frame 4 and a negative pressure flow channel 27 opened on the feeding shaft 11. The negative pressure end of the negative pressure vacuum cleaner 26 is connected to the negative pressure flow channel 27 through a negative pressure pipe. The feeding shaft 11 is provided with a plurality of groups of regularly distributed dust suction holes a28 connected to the negative pressure flow channel 27. A dust hood 29 is fixedly installed on the outer tube 1. The interior of the outer tube 1 is provided with a plurality of groups of regularly distributed dust suction holes b30 connected to the inner cavity of the dust hood 29. The negative pressure end of the negative pressure vacuum cleaner 26 is connected to the inner cavity of the dust hood 29 through a negative pressure bellows 34.

[0035] A rice processing method, based on the spiral feeding system for rice processing, comprises the following steps: The lifting motor installed on the outer cylinder 1 is started, and the lifting frame 4 is driven to move up and down along the axis of the outer cylinder 1 through the lifting screw, and the inner cylinder 5 and the discharge pipe 6 are driven to rise and fall synchronously, and the corrugated telescopic cylinder 7 is extended and retracted with the lifting and lowering of the inner cylinder 5; the upper shaft 18 and the transmission shaft 19 are driven to rotate through the rotation of the guide shaft 9, and then the feeding shaft 11 is driven to rotate and vibrate reciprocatingly within the set stroke, and the spiral conveying inner blade 12 rotates and vibrates accordingly, and the rice is conveyed upward from the feeding port 14, and the dust is shaken out by vibration; At the same time, the sleeve a32 and the sleeve b31 are driven by the rotation of the guide shaft 9, and the sleeve a32 drives the rotary conveying frame 16 to rotate through the second chain belt. The lower shaft 33 is meshed with the bevel gear b on the guide shaft 9. Through the transmission of the missing gear b23 and the vibration transmission tooth plate b24, the rotary conveying frame 16 vibrates while rotating, and the spiral conveying outer blade 17 sucks the rice from the bottom of the inner cylinder 5 and conveys it upward to the inner cylinder 5 through the corrugated telescopic cylinder 7, and at the same time, the dust is shaken out by vibration; Start the negative pressure vacuum cleaner 26, which is connected to the negative pressure flow channel 27 through the negative pressure pipe, to absorb the dust collected by the dust suction hole a28 on the feeding shaft 11; The dust collection hole b30 inside the outer tube 1 is connected to the negative pressure bellows 34 through the dust collection cover 29, and the negative pressure vacuum cleaner 26 continues to work to collect the dust inside the outer tube 1; The rice, after being spirally conveyed and vibrated and screened by the inner drum 5, is output to the next processing link through the discharge pipe 6.

[0036] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A spiral feeding system for rice processing, comprising an outer cylinder (1), wherein the lower part of the outer cylinder (1) is connected to a feed box (2), characterized in that: The outer cylinder (1) is provided with a screw lifting module (3), the screw lifting module (3) is transmission-connected with a lifting frame (4), the lifting frame (4) is provided with an inner cylinder (5), the upper part of the inner cylinder (5) is provided with a discharge pipe (6), the bottom of the outer cylinder (1) is provided with a discharge valve (35), a corrugated telescopic cylinder (7) is connected between the discharge valve (35) and the inner cylinder (5), and the lifting frame (4) is rotationally connected with a guide shaft (9) driven by a double-headed motor (8).

2. A spiral feeding system for rice processing according to claim 1, characterized in that: A first vibration guide module is installed on the lifting frame (4), an upper vibration frame (10) and a feeding shaft (11) are transmission-connected to the first vibration guide module, the feeding shaft (11) is rotationally connected to the upper vibration frame (10), and a spiral conveying inner blade (12) is installed on the feeding shaft (11) at a position corresponding to the inner side of the inner cylinder (5).

3. A spiral feeding system for rice processing according to claim 2, characterized in that: The spiral conveying inner blade (12) is fitted with the inner cylinder (5), and dust leakage holes (13) are evenly distributed on the spiral conveying inner blade (12). A group of feed ports (14) distributed in a circumferential array are opened at the lower part of the inner cylinder (5). A second vibration guide module is installed on the outer cylinder (1), and a lower vibration frame (15) and a rotary conveying frame (16) are transmission-connected on the second vibration guide module. The rotary conveying frame (16) is rotationally connected to the lower vibration frame (15). The rotary conveying frame (16) is installed with a spiral conveying outer blade (17) at a position corresponding to the inner side of the outer cylinder (1), and the inner wall of the spiral conveying outer blade (17) is respectively connected to the inner cylinder (5) and the corrugated plate (16). The corrugated telescopic cylinder (7) is fitted with the outer cylinder (1), and a negative pressure dust suction component cooperating with the outer cylinder (1) and the feeding shaft (11) is installed on the lifting frame (4); the inner cylinder (5) and the outer cylinder (1) are coaxially arranged, and the inner cylinder (5) is arranged on the inner side of the outer cylinder (1); the rotating feeding frame (16) is arranged between the outer cylinder (1) and the inner cylinder (5); the corrugated telescopic cylinder (7) is a hollow cylindrical structure with two ends open, and a plastic spring is built in the corrugated telescopic cylinder (7); the screw lifting module (3) comprises a lifting motor fixed to the outer cylinder (1) and a lifting screw rotatably connected to the outer cylinder (1), and the output shaft end of the lifting motor is connected to the lifting screw. The lowering screw is transmission-connected, the lifting screw is transmission-connected with the lifting frame (4), a guide block is fixedly mounted on the outer cylinder (1) and is slidably connected with the lifting frame (4), the lifting screw and the guide shaft are coaxially arranged, and the axis of the lifting screw is parallel to the axis of the outer cylinder (1); the first vibration guide module comprises an upper shaft (18) and a transmission shaft (19) which are rotationally connected to the lifting frame (4), the upper shaft (18) is driven by the guide shaft (9), a missing gear a (20) is fixedly mounted on the upper shaft (18), and a vibration transmission shaft (20) which is transmission-connected with the missing gear a (20) is fixedly mounted on the surface of the upper vibration frame (10). A toothed plate a (21), a re-vibration spring a (22) is sleeved on the feed shaft (11) and at a position corresponding to the position between the upper vibration frame (10) and the outer cylinder (1), the transmission shaft (19) is transmission-connected to the feed shaft (11), and the transmission shaft (19) is transmission-connected to the double-head motor (8) via a first chain belt; bevel gears a are fixedly mounted on the upper shaft (18) and the guide shaft (9), and the two bevel gears a mesh with each other; a driven shaft groove is fixedly opened inside the feed shaft (11) and is slidably connected to the feed shaft (11), and the inner cavity shape of the driven shaft groove and the cross-section of the transmission shaft (19) are both regular polygons;The second vibration guide module comprises a shaft sleeve a (32) rotatably connected to the lower vibration frame (15) and a shaft sleeve b (31) rotatably connected to the outer cylinder (1), the shaft sleeve a (32) and the shaft sleeve b (31) are both driven by a guide shaft (9), the shaft sleeve a (32) is transmission-connected to the rotary conveying frame (16) via a second chain belt, a lower shaft (33) is rotatably connected to the outer cylinder (1), a bevel gear b is mounted on the lower shaft (33) and the guide shaft (9), the two bevel gears b are meshed with each other, a missing gear b (23) is fixedly mounted on the lower shaft (33), and a vibration transmission gear plate b (24) is fixedly mounted on the lower vibration frame (15). ; 4. A spiral feeding system for rice processing according to claim 3, characterized in that: The missing gear b (23) is in transmission connection with the vibration transmission gear plate b (24), and a re-vibration spring b (25) is sleeved on the rotary conveying frame (16) at a position corresponding to the position between the lower vibration frame (15) and the outer cylinder (1).

5. A spiral feeding system for rice processing according to claim 4, characterized in that: The shaft sleeve a (32) and the shaft sleeve b (31) are both provided with linkage shaft grooves with openings at both ends and slidably connected to the guide shaft rod (9); the cross section of the linkage shaft groove is a regular polygon, and the cross section of the linkage shaft groove is adapted to the shape of the guide shaft rod (9).

6. A spiral feeding system for rice processing according to claim 5, characterized in that: The spiral conveying outer blade (17) is fixedly provided with a material lifting inclined surface inclined toward the feed inlet (14).

7. A spiral feeding system for rice processing according to claim 6, characterized in that: The negative pressure dust suction component comprises a negative pressure dust collector (26) fixed on the lifting frame (4) and a negative pressure flow channel (27) opened on the feeding shaft (11).

8. A spiral feeding system for rice processing according to claim 7, characterized in that: The negative pressure end of the negative pressure vacuum cleaner (26) is connected to the negative pressure flow channel (27) via a negative pressure pipe, a plurality of groups of regularly distributed dust suction holes a (28) connected to the negative pressure flow channel (27) are provided on the feed shaft (11), and a dust suction hood (29) is fixedly mounted on the outer cylinder (1).

9. A spiral feeding system for rice processing according to claim 8, characterized in that: The outer cylinder (1) is provided with a plurality of regularly distributed dust collection holes b (30) in communication with the inner cavity of the dust collection hood (29); the negative pressure end of the negative pressure vacuum cleaner (26) is in communication with the inner cavity of the dust collection hood (29) via a negative pressure bellows (34).

10. A rice processing method, characterized in that: A spiral feeding system for rice processing according to any one of claims 1 to 9, comprising the following steps: The lifting motor installed on the outer cylinder (1) is started, and the lifting frame (4) is driven to move up and down along the axis of the outer cylinder (1) through the lifting screw, and the inner cylinder (5) and the discharge pipe (6) are driven to rise and fall synchronously, and the corrugated telescopic cylinder (7) is extended and retracted along with the lifting and lowering of the inner cylinder (5); the upper shaft (18) and the transmission shaft (19) are driven to rotate through the rotation of the guide shaft (9), thereby driving the feeding shaft (11) to rotate and reciprocate within a set stroke, and the spiral conveying inner blade (12) rotates and vibrates accordingly, so that the rice is conveyed upward from the feeding port (14), and dust is shaken out through vibration; At the same time, the shaft sleeve a32 and the shaft sleeve b31 are driven by the rotation of the guide shaft (9), and the shaft sleeve a32 drives the rotary conveying frame (16) to rotate through the second chain belt. The lower shaft (33) meshes with the bevel gear b on the guide shaft (9), and the rotary conveying frame (16) vibrates while rotating through the transmission of the missing gear b23 and the vibration transmission tooth plate b24. The spiral conveying outer blade (17) sucks the rice from the bottom of the inner cylinder (5) and conveys it upward into the inner cylinder (5) through the corrugated telescopic cylinder (7), and at the same time, the vibration shakes out the dust. The negative pressure vacuum cleaner (26) is started and connected to the negative pressure flow channel (27) via a negative pressure pipe to absorb the dust collected by the dust suction hole a28 on the feeding shaft (11); The dust collection hole b30 inside the outer cylinder (1) is connected to the negative pressure bellows (34) via the dust collection cover (29), and the negative pressure vacuum cleaner (26) continues to work to collect the dust inside the outer cylinder (1); The rice that has been spirally conveyed and vibrated and screened by the inner drum (5) is output to the next processing stage through the discharge pipe (6).

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