A multi-stage low-damage conveying device in series for rice processing
Patent Information
- Application Number
- CN202611071772.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-20
- Publication Date
- 2026-09-25
AI Technical Summary
[0014]工作时将大米排放至第一输送带上，由第一输送带对大米进行水平输送，与此同时，启动风机，风机通过排套对密封罩内部进行抽气，使密封罩内形成稳定的负压环境。当大米从第一输送带的输出端排出后，在重力作用下落向过滤布，由于过滤布采用柔性材料制成，具有良好的弹性缓冲性能，能够有效吸收和分散大米下落时的冲击能量，减轻大米因刚性碰撞而产生的碎裂和损伤；在过滤布承接大米的同时，密封罩内的负压气流经过滤布的孔隙向内抽吸，一方面可将大米中混杂的灰尘、糠粉及轻质杂质吸入密封罩内，实现对大米的在线除尘净化；另一方面，负压气流对过滤布上的大米产生持续的吸附作用，使大米贴附于过滤布表面并沿其缓慢滑移、逐步释放，最终以较低的速度轻柔地落至第二输送带上，由第二输送带进行第二级输送。整个转接过程避免了大米在级间过渡时的自由坠落和剧烈碰撞；通过该设计，从而将缓冲降损、负压除尘与柔性转接有机融合于多级串联输送结构中，在保证大米连续高效输送的同时，降低了大米在输送转接环节的破损率，并同步完成了除尘净化，有效保障了成品大米的完整度和洁净度；
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Figure CN122809236A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of conveying equipment, and specifically to a multi-stage series low-breakage conveying device for rice processing. Background Technology
[0002] During rice processing, rice typically undergoes multiple steps, including cleaning, hulling, milling, polishing, and color sorting. These steps are generally connected using multi-stage, series-connected belt conveyors. Due to differences in workshop layout and equipment height, there is often a height difference between adjacent conveyor belts. When rice is transferred between stages, it must fall from the output end of the previous conveyor belt to the input end of the next.
[0003] In existing multi-stage conveying systems, inter-stage transfers typically employ direct drop or the use of rigid guide chutes. This method presents several problems: First, the rice possesses kinetic energy during its descent, and collisions with the conveyor belt surface or rigid chute wall of the next stage can easily cause mechanical damage, increasing the breakage rate and impacting the quality and economic benefits of the finished rice. Second, the rice's descent during conveying and transfer easily stirs up light impurities such as dust and bran, affecting both the workshop environment and the control of finished product cleanliness.
[0004] Based on this, the present invention provides a multi-stage series low-breakage conveying device for rice processing. Summary of the Invention
[0005] To address the problems mentioned in the background section, this invention provides a multi-stage series low-breakage conveying device for rice processing. On one hand, it draws dust, bran powder, and light impurities mixed in the rice into a sealed hood, achieving online dust removal and purification. On the other hand, negative pressure airflow continuously adsorbs the rice on the filter cloth, causing it to adhere to the filter cloth surface and slowly slide and gradually release, finally falling gently at a low speed onto the second conveyor belt for secondary conveying. The entire transfer process avoids free fall and violent collisions of the rice during inter-stage transitions. This design organically integrates buffering and loss reduction, negative pressure dust removal, and flexible transfer into a multi-stage series conveying structure. While ensuring continuous and efficient rice conveying, it reduces the breakage rate of rice during the conveying and transfer stages, and simultaneously completes dust removal and purification, effectively guaranteeing the integrity and cleanliness of the finished rice.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a multi-stage series low-breakage conveying device for rice processing, comprising a first conveyor belt, a second conveyor belt, and a conveying component, wherein the conveying component is disposed between the first conveyor belt and the second conveyor belt; the conveying component includes a sealing cover disposed between the output end of the first conveyor belt and the input end of the second conveyor belt; a filter cloth disposed inside the side opening of the sealing cover; a sleeve disposed in communication with the side of the sealing cover, wherein the side end of the sleeve corresponds to the position of the filter cloth; and a fan disposed inside the sleeve.
[0007] Furthermore, a filter plate is provided inside the sleeve at the input end of the fan.
[0008] Furthermore, a door is provided on the side of the sleeve above the filter plate.
[0009] Furthermore, it also includes a cleaning component disposed inside the sealing cover for cleaning the filter cloth.
[0010] Furthermore, the cleaning component includes multiple rotating shafts rotatably disposed within the sealing cover and arranged at equal intervals. Multiple eccentric disks are disposed in the middle of the rotating shafts and are arranged at staggered intervals. A reciprocating drive component is disposed on the side of the sealing cover and is used to drive the rotating shafts to reciprocate periodically.
[0011] Furthermore, the reciprocating drive includes a rack plate slidably disposed on the side of the sealing cover, and a servo electric actuator is also provided on the side of the sealing cover for driving the rack plate to reciprocate on the side of the sealing cover. Each of the rotating shafts is provided with a gear on its side end, and each of the gears is meshed with the rack plate.
[0012] Furthermore, the outer surface of the eccentric disk is provided with a brush surface.
[0013] Compared with the prior art, the multi-stage series low-breakage conveying device for rice processing provided by the present invention has the following beneficial effects:
[0014] During operation, rice is discharged onto the first conveyor belt, which transports it horizontally. Simultaneously, a fan is activated, drawing air from the inside of the sealed enclosure through a sleeve, creating a stable negative pressure environment. As the rice exits from the first conveyor belt, it falls onto the filter cloth under gravity. Made of flexible material, the filter cloth provides excellent elasticity and cushioning, effectively absorbing and dispersing the impact energy of the falling rice, reducing breakage and damage caused by rigid collisions. While the filter cloth receives the rice, the negative pressure airflow inside the sealed enclosure draws inward through the pores, drawing in dust, bran, and other light impurities mixed in with the rice, achieving online dust removal and purification. Furthermore, the negative pressure airflow continuously adsorbs the rice on the filter cloth, causing it to adhere to the surface and slowly slide and release, finally falling gently at a low speed onto the second conveyor belt for secondary transport. The entire transfer process avoids the free fall and violent collision of rice during the transition between stages. Through this design, buffering and loss reduction, negative pressure dust removal and flexible transfer are organically integrated into the multi-stage series conveying structure. While ensuring the continuous and efficient conveying of rice, the breakage rate of rice in the conveying and transfer stage is reduced, and dust removal and purification are completed simultaneously, effectively ensuring the integrity and cleanliness of the finished rice.
[0015] During the continuous air extraction process, the airflow carrying dust, rice flour, and light impurities flows from the sealing cover through the sleeve towards the fan. When the airflow passes through the filter plate, the filter plate intercepts and filters the impurities in the airflow, trapping them on the upper surface of the filter plate. The purified airflow continues to pass through the filter plate and is discharged by the fan, thus effectively preventing impurities from entering the fan and causing wear or blockage, and extending the service life of the fan. When a large amount of impurities are trapped on the filter plate, the operator only needs to open the door located above the filter plate to clean or replace the impurities on the filter plate through the opening. The maintenance process is convenient and quick, without the need to disassemble other parts.
[0016] When the filter cloth needs cleaning, the servo electric actuator is activated, driving the rack plate to reciprocate along the side of the sealing cover. The rack plate, through gear meshing, drives the gears and connected shafts to rotate synchronously. As the shafts rotate, the eccentric discs arranged at equal intervals on them rotate accordingly. Due to the eccentricity of the discs, they periodically tap the filter cloth during rotation, and the brush surface on their outer side brushes the filter cloth surface at the moment of impact. This design utilizes the tapping vibration of the eccentric discs to dislodge dust and impurities stuck in the pores of the filter cloth. Simultaneously, the brush surface on the outer side of the eccentric discs physically brushes the filter cloth surface, thoroughly removing stubborn impurities. This synergistic effect effectively prevents filter cloth clogging, ensuring smooth negative pressure airflow and continuous dust removal performance. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.
[0018] Figure 1 This is a schematic diagram of the structure of a multi-stage series low-breakage conveying device for rice processing in an embodiment of the present invention;
[0019] Figure 2 This is a schematic diagram of the other side of the multi-stage series low-breakage conveying device for rice processing in an embodiment of the present invention;
[0020] Figure 3 yes Figure 1 Enlarged structural diagram at point A;
[0021] Figure 4 This is a schematic diagram of the internal structure of the multi-stage series low-breakage conveying device for rice processing in an embodiment of the present invention;
[0022] Figure 5 This is a schematic diagram of the cleaning component in an embodiment of the present invention;
[0023] Figure 6 This is a schematic diagram of the structure of the fan and filter plate in an embodiment of the present invention.
[0024] Explanation of reference numerals in the attached figures:
[0025] 1. First conveyor belt; 2. Second conveyor belt; 3. Conveying component; 300. Sealing cover; 301. Filter cloth; 302. Sleeve; 303. Fan; 304. Filter plate; 305. Door body; 4. Cleaning component; 400. Rotating shaft; 401. Eccentric disc; 402. Rack plate; 403. Gear; 404. Servo electric actuator. Detailed Implementation
[0026] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.
[0027] As attached Figure 1 To be continued Figure 6 As shown:
[0028] The present invention provides a multi-stage series low-breakage conveying device for rice processing, comprising a first conveyor belt 1, a second conveyor belt 2 and a conveying component 3, wherein the conveying component 3 is disposed between the first conveyor belt 1 and the second conveyor belt 2.
[0029] Conveying component 3 includes a sealing cover 300, a filter cloth 301, a sleeve 302, and a fan 303;
[0030] The sealing cover 300 is disposed between the output end of the first conveyor belt 1 and the input end of the second conveyor belt 2; the filter cloth 301 is disposed inside the side opening of the sealing cover 300; the sleeve 302 is disposed on the side of the sealing cover 300, and the side end of the sleeve 302 corresponds to the position of the filter cloth 301; the fan 303 is disposed inside the sleeve 302.
[0031] Specifically, during operation, rice is discharged onto the first conveyor belt 1, which horizontally transports the rice. Simultaneously, the blower 303 is activated, drawing air from the inside of the sealing cover 300 through the sleeve 302, creating a stable negative pressure environment within the sealing cover 300. After the rice is discharged from the output end of the first conveyor belt 1, it falls onto the filter cloth 301 under gravity. Because the filter cloth 301 is made of flexible material, it has excellent elastic cushioning properties, effectively absorbing and dispersing the impact energy of the falling rice, reducing breakage and damage caused by rigid collisions.
[0032] While the filter cloth 301 receives the rice, the negative pressure airflow inside the sealing cover 300 draws the rice inward through the pores of the filter cloth 301. On the one hand, this draws in dust, bran powder, and light impurities mixed in with the rice into the sealing cover 300, achieving online dust removal and purification of the rice. On the other hand, the negative pressure airflow continuously adsorbs the rice on the filter cloth 301, causing the rice to adhere to the surface of the filter cloth 301 and slowly slide and gradually release along it, finally falling gently onto the second conveyor belt 2 at a low speed for secondary conveying. The entire transfer process avoids the rice from free fall and violent collisions during the transition between stages.
[0033] This design organically integrates buffering and loss reduction, negative pressure dust removal, and flexible transfer into a multi-stage series conveying structure. While ensuring continuous and efficient conveying of rice, it reduces the breakage rate of rice during the conveying and transfer process, and simultaneously completes dust removal and purification, effectively ensuring the integrity and cleanliness of the finished rice.
[0034] like Figure 6 As shown, a filter plate 304 is installed inside the sleeve 302 at the input end of the fan 303.
[0035] like Figure 6 As shown, a door 305 is provided on the side of the sleeve 302 above the filter plate 304.
[0036] Specifically, during the continuous air extraction process of the blower 303, the airflow carrying dust, rice flour, and light impurities flows from the sealing cover 300 through the sleeve 302 towards the blower 303. When the airflow passes through the filter plate 304, the filter plate 304 intercepts and filters the impurities in the airflow, trapping the impurities on the upper surface of the filter plate 304. The purified airflow continues to pass through the filter plate 304 and is discharged through the blower 303, thereby effectively preventing impurities from entering the interior of the blower 303 and causing wear or blockage, thus extending the service life of the blower 303. When a large amount of impurities accumulate on the filter plate 304, the operator only needs to open the door 305 located above the filter plate 304 to clean or replace the impurities on the filter plate 304 through the opening. The maintenance process is convenient and quick, without the need to disassemble other parts.
[0037] In one embodiment of the present invention, such as Figure 3 , Figure 4 and Figure 5 As shown, it also includes a cleaning component 4 disposed inside the sealing cover 300 for cleaning the filter cloth 301.
[0038] like Figure 4 As shown, the cleaning component 4 includes multiple rotating shafts 400 and reciprocating drive components;
[0039] Multiple rotating shafts 400 are rotatably disposed within the sealing cover 300 and are arranged at equal intervals. Multiple eccentric disks 401 are disposed in the middle of the rotating shafts 400 and are arranged at equal intervals in an alternating manner. A reciprocating drive component is disposed on the side of the sealing cover 300 and is used to drive the rotating shafts 400 to reciprocate periodically.
[0040] like Figure 3 As shown, the reciprocating drive includes a rack plate 402 slidably disposed on the side of the sealing cover 300. A servo electric actuator 404 is also provided on the side of the sealing cover 300 for driving the rack plate 402 to reciprocate on the side of the sealing cover 300. A gear 403 is provided on the side end of each rotating shaft 400, and each gear 403 is meshed with the rack plate 402.
[0041] Specifically, the outer side of the eccentric disc 401 is provided with a brush surface.
[0042] Specifically, when the filter cloth 301 needs to be cleaned, the servo electric actuator 404 is activated, which drives the rack plate 402 to reciprocate along the side of the sealing cover 300. The rack plate 402 is driven by the meshing of gears 403, which drives each gear 403 and the connected rotating shaft 400 to reciprocate synchronously. When the rotating shaft 400 rotates, it drives the eccentric disks 401 arranged at equal intervals on it to rotate as well. Due to the eccentricity of the eccentric disks 401, they will periodically strike the filter cloth 301 during the rotation process, and the brush surface on the outer side will brush the surface of the filter cloth 301 at the moment of the strike.
[0043] This design utilizes two mechanisms: firstly, the eccentric disc 401 vibrates and shakes off dust and impurities trapped in the pores of the filter cloth 301; secondly, the brush surface on the outer side of the eccentric disc 401 physically brushes the surface of the filter cloth 301, thoroughly removing stubborn impurities. This synergistic effect effectively prevents clogging of the filter cloth 301, ensuring smooth negative pressure airflow and continuous dust removal performance.
[0044] In one embodiment of the present invention, a control unit is also provided. This control unit can be adapted to any standard industrial controller (such as PLC, microcontroller, etc.) to realize the start-stop and operation logic control of the electrical components in the present invention. The control circuit of the controller can be implemented by those skilled in the art through simple programming. The control method and circuit connection will not be explained in detail here.
[0045] Working principle and usage process of this invention:
[0046] During operation, rice is discharged onto the first conveyor belt 1, which horizontally transports the rice. Simultaneously, the blower 303 is activated, drawing air from the inside of the sealing cover 300 through the sleeve 302, creating a stable negative pressure environment within the sealing cover 300. After the rice is discharged from the output end of the first conveyor belt 1, it falls onto the filter cloth 301 under gravity. Because the filter cloth 301 is made of flexible material, it has excellent elastic cushioning properties, effectively absorbing and dispersing the impact energy of the falling rice, reducing breakage and damage caused by rigid collisions.
[0047] While the filter cloth 301 receives the rice, the negative pressure airflow inside the sealing cover 300 draws the rice inward through the pores of the filter cloth 301. On the one hand, this draws in dust, bran powder, and light impurities mixed in with the rice into the sealing cover 300, achieving online dust removal and purification of the rice. On the other hand, the negative pressure airflow continuously adsorbs the rice on the filter cloth 301, causing the rice to adhere to the surface of the filter cloth 301 and slowly slide and gradually release along it, finally falling gently onto the second conveyor belt 2 at a low speed for secondary conveying. The entire transfer process avoids the rice from free fall and violent collisions during the transition between stages.
[0048] When the filter cloth 301 needs to be cleaned, the servo electric actuator 404 is activated, which drives the rack plate 402 to reciprocate along the side of the sealing cover 300. The rack plate 402 is driven by the meshing of gears 403, which drives each gear 403 and the connected rotating shaft 400 to reciprocate synchronously. When the rotating shaft 400 rotates, it drives the eccentric disks 401 arranged at equal intervals on it to rotate as well. Due to the eccentricity of the eccentric disks 401, they will periodically strike the filter cloth 301 during the rotation process, and the brush surface on the outer side will brush the surface of the filter cloth 301 at the moment of the strike.
[0049] During the continuous air extraction process of the blower 303, the airflow carrying dust, rice flour and light impurities flows from the sealing cover 300 through the sleeve 302 towards the blower 303. When the airflow passes through the filter plate 304, the filter plate 304 intercepts and filters the impurities in the airflow, trapping the impurities on the upper surface of the filter plate 304. The purified airflow continues to pass through the filter plate 304 and is discharged through the blower 303, thereby effectively preventing impurities from entering the interior of the blower 303 and causing wear or blockage, thus extending the service life of the blower 303. When a large amount of impurities are trapped on the filter plate 304, the operator only needs to open the door 305 located above the filter plate 304 to clean or replace the impurities on the filter plate 304 through the opening. The maintenance process is convenient and quick, without the need to disassemble other parts.
[0050] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to mutually.
[0051] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, which will not be described in detail here.
[0052] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A multi-stage series low-breakage conveying device for rice processing, characterized in that, include: A first conveyor belt (1), a second conveyor belt (2), and a conveyor component (3), wherein the conveyor component (3) is disposed between the first conveyor belt (1) and the second conveyor belt (2); The conveying component (3) includes: A sealing cover (300) is disposed between the output end of the first conveyor belt (1) and the input end of the second conveyor belt (2); The filter cloth (301) is disposed inside the side opening of the sealing cover (300); A sleeve (302) is connected to the side of the sealing cover (300), and the side end of the sleeve (302) corresponds to the position of the filter cloth (301); The fan (303) is installed inside the sleeve (302).
2. The multi-stage series low-breakage conveying device for rice processing according to claim 1, characterized in that, A filter plate (304) is provided inside the sleeve (302) at the input end of the fan (303).
3. A multi-stage series low-breakage conveying device for rice processing according to claim 2, characterized in that, The side of the sleeve (302) is provided with a door (305) located above the filter plate (304).
4. A multi-stage series low-breakage conveying device for rice processing according to claim 1, characterized in that, It also includes a cleaning component (4) disposed inside the sealing cover (300) for cleaning the filter cloth (301).
5. A multi-stage series low-breakage conveying device for rice processing according to claim 4, characterized in that, The cleaning component (4) includes: Multiple rotating shafts (400) are rotatably disposed inside the sealing cover (300) and are arranged at equal intervals. Multiple eccentric disks (401) are provided in the middle of the rotating shafts (400) and are arranged at equal intervals in an alternating manner. A reciprocating drive component is disposed on the side of the sealing cover (300) for driving the rotating shaft (400) to reciprocate periodically.
6. A multi-stage series low-breakage conveying device for rice processing according to claim 5, characterized in that, The reciprocating drive includes a rack plate (402) slidably disposed on the side of the sealing cover (300). A servo electric actuator (404) is also provided on the side of the sealing cover (300) for driving the rack plate (402) to reciprocate on the side of the sealing cover (300). A gear (403) is provided on the side end of each of the rotating shafts (400), and each of the gears (403) is meshed with the rack plate (402).
7. A multi-stage series low-breakage conveying device for rice processing according to claim 4, characterized in that, The outer side of the eccentric disk (401) is provided with a brush surface.