Screen drum cleaning device for rice processing thickness machine

Abstract

The utility model relates to the technical field of rice processing, and provides a screen drum cleaning device for a rice processing thickness machine. The vibrating screen comprises a screen drum and a cleaning drum, and screen mesh holes are evenly distributed in the cylindrical surface of the screen drum; through holes are distributed in the cleaning cylinder, the distribution of the through holes is the same as that of screen mesh holes of the screen cylinder, the cylindrical surface of the cleaning cylinder and the cylindrical surface of the screen cylinder are mutually attached inside and outside and are rotationally assembled together, cleaning top blocks are uniformly distributed on the cleaning cylinder, and the size of the cleaning top blocks is smaller than that of the screen mesh holes; the distribution rule of the cleaning top blocks on the cleaning cylinder is the same as that of the screen holes in the screen cylinder, the cleaning top blocks are all embedded into the corresponding screen holes, and the cleaning top blocks slide in the screen holes in the relative rotation process of the screen cylinder and the cleaning cylinder. According to the screen drum cleaning device for the rice processing thickness machine, each hole in the screen drum can be directly cleaned through the cleaning top block, and the cleaning effect is more reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a screen drum cleaning device for a rice processing thickness machine. Background Art

[0002] To select higher-quality rice during rice processing, the rice needs to be screened by size using a sieve drum within a rice thickness machine. During this process, some perfectly sized rice grains will inevitably become lodged in the holes on the drum. As the screening process progresses, more and more holes become clogged, rapidly decreasing the efficiency of the drum. Furthermore, once a rice grain is lodged in a hole, subsequent rice grains will impact it, causing it to become further stuck. Simple vibration alone will not be enough to clean the rice grains.

[0003] The utility model patent with patent number CN214289370U discloses a screen drum cleaning device for a rice processing thickness machine, which includes a drum and a hard-bristle brush. The screen drum is cleaned by a rotating hard-bristle brush, but the rotating hard-bristle brush cannot effectively contact the rice grains stuck in the holes for cleaning. These rice grains are mainly cleaned by the vibration generated by the impact of the screen drum, and the cleaning effect of the blockage problem is poor. Utility Model Content

[0004] The utility model aims to provide a screen drum cleaning device for a rice processing thickness machine. The screen drum cleaning device for a rice processing thickness machine can directly clean each hole on the screen drum by cleaning a top block, and the cleaning effect is more reliable.

[0005] The utility model provides a screen drum cleaning device for a rice processing thickness machine, comprising:

[0006] A sieve cylinder, wherein sieve holes are evenly distributed on the cylindrical surface of the sieve cylinder;

[0007] A cleaning cylinder, wherein through holes are distributed on the cleaning cylinder, and the through holes are distributed in the same manner as the sieve holes of the sieve cylinder. The cylindrical surface of the cleaning cylinder and the cylindrical surface of the sieve cylinder are fitted together and rotated together. Cleaning top blocks are evenly distributed on the cleaning cylinder, and the size of the cleaning top blocks is smaller than the size of the sieve holes.

[0008] The distribution pattern of the cleaning top blocks on the cleaning cylinder is the same as the distribution pattern of the screen holes on the sieve cylinder. The cleaning top blocks are all embedded in the corresponding sieve holes. During the relative rotation of the sieve cylinder and the cleaning cylinder, the cleaning top blocks slide in the sieve holes.

[0009] Preferably, the cleaning cylinder is sleeved on the outside of the screen cylinder, and the cleaning top block is fixedly connected to the inner wall of the cleaning cylinder.

[0010] Preferably, the cleaning cylinder is sleeved on the inner side of the screen cylinder, and the cleaning top block is fixedly connected to the outer wall of the cleaning cylinder.

[0011] Preferably, reverse top blocks are evenly distributed on the sieve drum, and when the sieve drum and the cleaning drum rotate relative to each other, the reverse top blocks slide in the sieve mesh holes on the cleaning drum.

[0012] Preferably, the reverse top block and the cleaning top block are both cambered convexities.

[0013] Preferably, the screen drum cleaning device for the rice processing thickness machine further comprises a driving motor, a driving end of the driving motor is transmission-connected to the screen drum, the driving motor drives the screen drum to rotate, and the screen drum and the cleaning drum rotate relative to each other.

[0014] Preferably, the screen drum cleaning device for the rice processing thickness machine further comprises a cleaning motor, the driving end of the cleaning motor is transmission-connected to the cleaning drum, and the cleaning motor and the driving motor cooperate to drive the screen drum and the cleaning drum to rotate relative to each other.

[0015] Preferably, the screen drum cleaning device for the rice processing thickness machine further comprises a rotating brush wheel, and the rotating brush wheel and the screen drum are fitted to each other in an circumscribed manner.

[0016] Preferably, the screen drum and the rotating brush wheel are both integrally formed with gears, the two gears are meshed with each other, and the cylindrical surfaces of the screen drum and the rotating brush wheel rub against each other.

[0017] Preferably, the driving end of the driving motor is fixedly connected to the gear on the rotating brush wheel, the driving motor drives the rotating brush wheel to rotate, and the rotating brush wheel drives the screen drum to rotate.

[0018] The technical solution of the utility model is to design a cleaning top block on the cleaning cylinder with the same distribution pattern as the screen holes on the screen cylinder. The cleaning top block is embedded in the corresponding screen holes. When the screen cylinder and the cleaning cylinder rotate relative to each other, the cleaning top block slides in the screen holes to directly clean the screen holes, the blockage problem is cleared in place, and the cleaning effect is more reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This utility model is a screen drum cleaning device for a rice processing thickness machine;

[0021] Figure 2 for Figure 1 Assembly drawing of the sieve drum and cleaning drum when the sieve drum is inside the sieve drum cleaning device for a rice processing thickness machine;

[0022] Figure 3 for Figure 2 Assembly drawing of the cleaning drum and cleaning motor in the screen drum cleaning device for a rice processing thickness machine;

[0023] Figure 4 for Figure 2 Assembly drawing of the sieve drum and drive motor in the sieve drum cleaning device for a rice processing thickness machine;

[0024] Figure 5 for Figure 1 The assembly diagram of the screen drum and the cleaning drum when the screen drum is outside in the screen drum cleaning device for the rice processing thickness machine;

[0025] Figure 6 for Figure 5 Assembly diagram of the sieve drum, drive motor, and rotating brush wheel in the sieve drum cleaning device for a rice processing thickness machine.

[0026] Description of reference numerals:

[0027] 1. Screen cylinder; 11. Reverse top block; 2. Cleaning cylinder; 21. Cleaning top block; 3. Driving motor; 4. Cleaning motor; 5. Rotating brush wheel. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] In the description of the present invention, it should 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", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] In the description of the present invention, it should be understood that 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 one or more of the said features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0031] Combine Figures 1 to 5 As shown, the utility model provides a screen drum cleaning device for a rice processing thickness machine, comprising a screen drum 1 and a cleaning drum 2.

[0032] Combine Figures 1 to 5 As shown, sieve holes are evenly distributed on the cylindrical surface of the sieve drum 1; through holes are distributed on the cleaning drum 2, and the distribution of the through holes and the sieve holes of the sieve drum 1 is the same, the cylindrical surface of the cleaning drum 2 and the cylindrical surface of the sieve drum 1 fit together inside and outside and rotate together, and cleaning top blocks 21 are evenly distributed on the cleaning drum 2, and the size of the cleaning top blocks 21 is smaller than the size of the sieve holes; the distribution pattern of the cleaning top blocks 21 on the cleaning drum 2 is the same as the distribution pattern of the sieve holes on the sieve drum 1, and the cleaning top blocks 21 are all embedded in the corresponding sieve holes. During the relative rotation of the sieve drum 1 and the cleaning drum 2, the cleaning top blocks 21 slide in the sieve holes.

[0033] In this embodiment, a cleaning top block 21 is designed on the cleaning cylinder 2 with the same distribution pattern of the sieve holes as that on the sieve cylinder 1. The cleaning top block 21 is embedded in the corresponding sieve holes. When the sieve cylinder 1 and the cleaning cylinder 2 rotate relative to each other, the cleaning top block 21 slides in the sieve holes to directly clean the sieve holes, so that the blockage problem is cleared in place and the cleaning effect is more reliable.

[0034] In some embodiments, combined Figure 2 As shown, the cleaning cylinder 2 is sleeved on the outside of the screen cylinder 1, and the cleaning top block 21 is fixedly connected to the inner wall of the cleaning cylinder 2. Because in the process of screening rice, rice usually passes through the middle of the screen cylinder 1, the cleaning cylinder 2 can reduce the contact with the rice grains on the outside.

[0035] In some embodiments, combined Figure 5As shown, the cleaning cylinder 2 is sleeved on the inner side of the screen cylinder 1, and the cleaning top block 21 is fixedly connected to the outer wall of the cleaning cylinder 2, which can provide space for adding other tools for cleaning the screen cylinder 1 and facilitate the cleaning of the screen cylinder 1.

[0036] In some embodiments, combined Figure 2 、 Figure 5 As shown, reverse top blocks 11 are evenly distributed on the sieve drum 1. When the sieve drum 1 and the cleaning drum 2 rotate relative to each other, the reverse top blocks 11 slide in the sieve holes on the cleaning drum 2. The through holes on the cleaning drum 2 also have the risk of clogging. Adding reverse top blocks 11 to the sieve drum 1 can realize cleaning the through holes on the cleaning drum 2 through the sieve drum 1, further avoiding the clogging problem.

[0037] In some embodiments, combined Figure 2 、 Figure 5 As shown, the reverse top block 11 and the cleaning top block 21 are both cambered protrusions. When the screen drum 1 and the cleaning drum 2 rotate relative to each other, the cambered surfaces help the stuck rice grains to pop out, reducing the possibility of the rice grains being crushed.

[0038] In some embodiments, combined Figure 4 As shown, the screen drum cleaning device for the rice processing thickness machine also includes a drive motor 3, the drive end of the drive motor 3 is connected to the screen drum 1, and the drive motor 3 drives the screen drum 1 to rotate. The screen drum 1 and the cleaning drum 2 rotate relative to each other. The screen drum 1 is driven by the drive motor 3 to rotate. On the one hand, the rice is screened by the screen drum 1. At the same time, the relative rotation of the screen drum 1 and the cleaning drum 2 can be achieved by rapid start and stop using inertia, thereby automatically realizing the cleaning process.

[0039] In some embodiments, combined Figure 3 As shown, the screen drum cleaning device for the rice processing thickness machine also includes a cleaning motor 4, the driving end of the cleaning motor 4 is connected to the cleaning drum 2, and the cleaning motor 4 and the drive motor 3 cooperate to drive the screen drum 1 and the cleaning drum 2 to rotate relative to each other. The rotation of the cleaning drum 2 is controlled by the cleaning motor 4, and the relative rotation is achieved by utilizing the speed difference between the cleaning motor 4 and the drive motor 3. Compared with utilizing inertia, the cleaning force is greater, and the mutual impact between the cleaning motor 4 and the drive motor 3 can be alleviated.

[0040] In some embodiments, combined Figure 6 As shown, the screen drum cleaning device for the rice processing thickness machine also includes a rotating brush wheel 5, and the rotating brush wheel 5 and the screen drum 1 are fitted to each other in an externally cut manner. The cleaning of the cleaning drum 2 is mainly aimed at the blockage in the screen mesh hole, and the rotating brush wheel 5 is added to clean the dust and the like.

[0041] In some embodiments, combined Figure 6As shown, the screen drum 1 and the rotating brush wheel 5 are integrally formed with gears, the two gears are engaged with each other, the cylindrical surfaces of the screen drum 1 and the rotating brush wheel 5 rub against each other, and the screen drum 1 and the rotating brush wheel 5 are linked by the two gears to achieve automatic cleaning, but attention should also be paid to the transmission ratio between the gears. The friction between the screen drum 1 and the rotating brush wheel 5 needs to be ensured to achieve the cleaning effect.

[0042] In some embodiments, combined Figure 6 As shown, the driving end of the driving motor 3 is fixedly connected to the gear on the rotating brush wheel 5, and the driving motor 3 drives the rotating brush wheel 5 to rotate, and the rotating brush wheel 5 drives the screen drum 1 to rotate. Compared with the driving motor 3 driving the screen drum 1 and the screen drum 1 driving the rotating brush wheel 5, a transmission process is reduced and the power transmission process is simpler.

[0043] Working process: When the sieve drum 1 is performing screening work, smaller rice grains can pass through the sieve holes and through holes normally; when the sieve drum 1 is to be cleaned, the sieve drum 1 and the cleaning drum 2 are first controlled to rotate relative to each other, and the cleaning top block 21 slides in the sieve holes on the sieve drum 1. The rice grains in the sieve drum 1 are crushed or ejected from the sieve holes under the impact of the cleaning top block 21. Each time the cleaning top block 21 slides from one side to the other in the sieve holes, the sieve holes are cleaned.

[0044] The relative rotation between the screen drum 1 and the cleaning drum 2 causes a reciprocating motion of forward and reverse switching.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A screen drum cleaning device for a rice processing thickness machine, characterized in that: include: A sieve drum (1), wherein sieve mesh holes are evenly distributed on the cylindrical surface of the sieve drum (1); A cleaning cylinder (2), wherein through holes are distributed on the cleaning cylinder (2), and the through holes are distributed in the same manner as the sieve holes of the sieve cylinder (1); the cylindrical surface of the cleaning cylinder (2) and the cylindrical surface of the sieve cylinder (1) are fitted together and rotated together; cleaning top blocks (21) are evenly distributed on the cleaning cylinder (2), and the size of the cleaning top blocks (21) is smaller than the size of the sieve holes; The distribution pattern of the cleaning top blocks (21) on the cleaning cylinder (2) is the same as the distribution pattern of the sieve holes on the sieve cylinder (1). The cleaning top blocks (21) are all embedded in the corresponding sieve holes. During the relative rotation of the sieve cylinder (1) and the cleaning cylinder (2), the cleaning top blocks (21) slide in the sieve holes.

2. The sieve drum cleaning device for a rice processing thickness machine according to claim 1, characterized in that: The cleaning cylinder (2) is sleeved on the outside of the screen cylinder (1), and the cleaning top block (21) is fixedly connected to the inner wall of the cleaning cylinder (2).

3. The sieve drum cleaning device for a rice processing thickness machine according to claim 1, characterized in that: The cleaning cylinder (2) is sleeved on the inner side of the screen cylinder (1), and the cleaning top block (21) is fixedly connected to the outer wall of the cleaning cylinder (2).

4. The screen drum cleaning device for a rice processing thickness machine according to claim 1, characterized in that: Reverse top blocks (11) are evenly distributed on the screen cylinder (1). When the screen cylinder (1) and the cleaning cylinder (2) rotate relative to each other, the reverse top blocks (11) slide in the screen mesh holes on the cleaning cylinder (2).

5. The screen drum cleaning device for a rice processing thickness machine according to claim 4, characterized in that: The reverse top block (11) and the cleaning top block (21) are both cambered convex.

6. The screen drum cleaning device for a rice processing thickness machine according to claim 1, characterized in that: The cleaning drum (2) further comprises a driving motor (3), the driving end of which is connected to the screen drum (1) in a transmission manner. The driving motor (3) drives the screen drum (1) to rotate, and the screen drum (1) and the cleaning drum (2) rotate relative to each other.

7. The screen drum cleaning device for a rice processing thickness machine according to claim 6, characterized in that: It also includes a cleaning motor (4), the driving end of the cleaning motor (4) is connected to the cleaning cylinder (2), and the cleaning motor (4) and the driving motor (3) cooperate to drive the screen cylinder (1) and the cleaning cylinder (2) to rotate relative to each other.

8. The screen drum cleaning device for a rice processing thickness machine according to claim 6, characterized in that: It also includes a rotating brush wheel (5), wherein the rotating brush wheel (5) and the screen drum (1) are fitted to each other in an externally tangential manner.

9. The screen drum cleaning device for a rice processing thickness machine according to claim 8, characterized in that: Gears are integrally formed on the screen drum (1) and the rotating brush wheel (5), the two gears mesh with each other, and the cylindrical surfaces of the screen drum (1) and the rotating brush wheel (5) rub against each other.

10. The screen drum cleaning device for a rice processing thickness machine according to claim 8, characterized in that: The driving end of the driving motor (3) is fixedly connected to the gear on the rotating brush wheel (5), and the driving motor (3) drives the rotating brush wheel (5) to rotate, and the rotating brush wheel (5) drives the screen drum (1) to rotate.

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