Rice screening device capable of conveniently adjusting screening length

Abstract

The utility model discloses a rice screening device capable of conveniently adjusting the screening length, and relates to the technical field of rice processing, in particular to a rice screening device capable of conveniently adjusting the screening length, which comprises a machine body, and a screening mechanism is arranged on the machine body and is used for screening rice. The main body assembly comprises a main shaft rotationally installed in the machine body, a middle support fixed to the middle of the outer wall of the main shaft, a left support and a right support which are fixed to the left end and the right end of the outer wall of the middle support correspondingly, and two symmetrical left screens installed between the middle support and the left support; the left end and the right end of the left screen mesh are fixed to the left support and the middle support through bolts respectively, the left end and the right end of the right screen mesh are fixed to the middle support and the right support through bolts respectively, the left screen mesh and the right screen mesh can be disassembled and assembled conveniently by opening the machine door, and therefore the left screen mesh and the right screen mesh with different screen hole sizes can be replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of rice processing, in particular to a rice screening device which is convenient for adjusting the screening length. Background Art

[0002] Rice screening device is a mechanical device used to screen rice. Its main purpose is to remove impurities, broken rice, etc. in rice and improve the quality and taste of rice.

[0003] According to the publication number: CN215430074U, a screening device for white rice processing is disclosed. This technology discloses "a screening device for white rice processing, including a screening frame, a screening drum, a feeding bin, a beating mechanism, a transmission wheel, a material guide trough and a discharge port; the transmission wheel is provided with two groups, the two groups of transmission wheels are installed on the inner side of the screening frame, and the two ends of the screening barrel are located on the two groups of transmission wheels, and the transmission wheels are driven by a motor; the screening frame is inclined, and the material guide trough is installed at the end of the screening frame that is inclined downward. The screening device for white rice processing, through The transmission wheel supports the screening drum and drives the screening drum to rotate, and the rice falls into the screening drum along the feeding bin. Under the screening of the rotating screening drum, the broken rice passes through the screening drum and falls into the screening frame, while the rice in the screening drum slides down and is discharged from the guide groove, and the broken rice in the screening frame is discharged from the discharge port along the inclined surface. The technical scheme has the technical effects of "the rotation of the screening drum drives the knocking mechanism to operate, thereby knocking the screening drum, and the rice in the mesh is cleaned out by the vibration generated by the knocking, so as to maintain the screening effect of the screening drum";

[0004] Since conventional screening devices have a fixed screening size, they can only be used to screen materials within a specific size range and cannot be adjusted according to changes in different production requirements of the materials, which limits the versatility and flexibility of the device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a rice screening device that is convenient for adjusting the screening length. The left and right ends of the left screen are respectively fixed to the left bracket and the middle bracket by bolts, and the left and right ends of the right screen are respectively fixed to the middle bracket and the right bracket by bolts. The left screen and the right screen can be easily disassembled and assembled by opening the machine door, thereby replacing the left screen and the right screen with different screen hole sizes.

[0006] To achieve the above purpose, the utility model is implemented by the following technical scheme: a rice screening device that is convenient for adjusting the screening length, comprising a body, a screening mechanism is provided on the body and is used to screen rice, the screening mechanism comprising:

[0007] The main body assembly includes a main shaft rotatably mounted inside the machine body, a middle bracket fixed in the middle of the outer wall of the main shaft, a left bracket and a right bracket respectively fixed at the left end and the right end of the outer wall of the middle bracket, two mutually symmetrical left screens mounted between the middle bracket and the left bracket, two mutually symmetrical right screens mounted between the middle bracket and the right bracket, an extension head fixed at the left end of the left bracket, and a motor mounted on the outer wall of the left end of the machine body and used to drive the main shaft to rotate;

[0008] The auxiliary component is arranged in the machine body and is used for cleaning the impurities attached to the left screen and the right screen.

[0009] Preferably, the main body assembly further comprises a retaining frame fixed to the left end of the inner wall of the body, and the retaining frame is shielded below the left end of the extension head.

[0010] Preferably, the auxiliary component includes shaft frames fixed on both sides of the front upper end of the machine body, a shaft rod rotatably mounted between the two shaft frames, and a left brush cylinder and a right brush cylinder respectively mounted on the outer walls of the left and right ends of the shaft rod.

[0011] Preferably, the auxiliary component further comprises a driven gear fixed to the right end of the shaft rod, a driving gear fixed to the right end of the main shaft, and the driving gear is meshed with the driven gear for transmission.

[0012] Preferably, the screening mechanism further comprises a feed pipe fixed on the left side of the upper end of the machine body, and the lower end of the feed pipe extends into the extension head, and a hopper is fixed on the top of the feed pipe.

[0013] Preferably, the screening mechanism further comprises a baffle fixed on the right side of the machine body, a feed discharge port opened at the right end of the machine body, a chip discharge bucket opened at the lower end of the machine body, and a machine door hinged at the front end of the machine body.

[0014] Beneficial Effects

[0015] The utility model provides a rice screening device that is convenient for adjusting the screening length. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The main shaft is driven to rotate through the output end of the motor, and the main shaft drives the left screen and the right screen to rotate through the middle bracket, the left bracket and the right bracket, thereby driving the rice inside to roll for screening; and the left and right ends of the left screen are respectively fixed to the left bracket and the middle bracket by bolts, and the left and right ends of the right screen are respectively fixed to the middle bracket and the right bracket by bolts. The left screen and the right screen can be easily disassembled and assembled by opening the machine door, so as to replace the left screen and the right screen with different mesh sizes.

[0017] (2) When the main shaft rotates, the driving gear cooperates with the driven gear to drive the shaft rod to rotate, and the shaft rod drives the left brush cylinder and the right brush cylinder to rotate synchronously at the same time, so that when the main assembly rotates, the left brush cylinder and the right brush cylinder can rotate in the opposite direction with it, so that the surfaces of the left screen and the right screen can be cleaned respectively to avoid blockage caused by impurities adhering to the screen, thereby affecting the screening effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the screening mechanism in the utility model;

[0021] Figure 4 This is a disassembled diagram of the main components of the utility model.

[0022] In the figure: 1. machine body; 2. screening mechanism; 21. main body assembly; 211. main shaft; 212. middle bracket; 213. left bracket; 214. right bracket; 215. left screen; 216. right screen; 217. extension head; 218. motor; 219. baffle; 22. auxiliary assembly; 221. shaft frame; 222. shaft rod; 223. left brush cylinder; 224. right brush cylinder; 225. driven gear; 226. driving gear; 23. feed pipe; 24. hopper; 25. baffle; 26. discharge port; 27. chip removal bucket; 28. machine door. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 The utility model provides a technical solution for a rice screening device that is convenient for adjusting the screening length: a rice screening device that is convenient for adjusting the screening length, comprising a body 1, a screening mechanism 2 is arranged on the body 1 and is used to screen rice, and the screening mechanism 2 comprises:

[0025] The main body component 21 includes a main shaft 211 rotatably mounted inside the machine body 1, a middle bracket 212 fixed at the middle of the outer wall of the main shaft 211, a left bracket 213 and a right bracket 214 respectively fixed at the left and right ends of the outer wall of the middle bracket 212, two mutually symmetrical left screens 215 installed between the middle bracket 212 and the left bracket 213, two mutually symmetrical right screens 216 installed between the middle bracket 212 and the right bracket 214, an extension head 217 fixed at the left end of the left bracket 213, and a motor 218 installed on the outer wall of the left end of the machine body 1 and used to drive the main shaft 211 to rotate;

[0026] The auxiliary component 22 is disposed in the machine body 1 and is used to clean the impurities attached to the left screen 215 and the right screen 216 .

[0027] In the present embodiment, the main shaft 211 is driven to rotate by the output end of the motor 218, and the main shaft 211 drives the left screen 215 and the right screen 216 to rotate through the middle bracket 212, the left bracket 213 and the right bracket 214, thereby driving the internal rice to roll for screening; and, the left and right ends of the left screen 215 are respectively fixed to the left bracket 213 and the middle bracket 212 by bolts, and the left and right ends of the right screen 216 are respectively fixed to the middle bracket 212 and the right bracket 214 by bolts, and the left and right ends of the right screen 216 are respectively fixed to the middle bracket 212 and the right bracket 214 by bolts, and the left screen 215 and the right screen 216 can be easily disassembled and assembled by opening the machine door 28, thereby replacing the left screen 215 and the right screen 216 with different sieve hole sizes.

[0028] Specifically, the main body component 21 further includes a retaining frame 219 fixed to the left end of the inner wall of the body 1 , and the retaining frame 219 is shielded below the left end of the extension head 217 .

[0029] In this embodiment, when the main body component 21 is rotating, the left end of the main body component 21 can be shielded by the blocking frame 219 to prevent the rice from leaking outwards when entering the main body component 21 .

[0030] Specifically, the auxiliary component 22 includes shaft frames 221 fixed on both sides of the front upper end of the body 1, a shaft rod 222 rotatably installed between the shaft frames 221 on both sides, and a left brush cylinder 223 and a right brush cylinder 224 respectively installed on the outer walls of the left and right ends of the shaft rod 222.

[0031] In this embodiment, when the main body component 21 rotates, the left brush cylinder 223 and the right brush cylinder 224 can rotate in the opposite direction thereto, so that the surfaces of the left screen 215 and the right screen 216 can be cleaned respectively to avoid clogging caused by the adhesion of impurities, thereby affecting the screening effect.

[0032] Specifically, the auxiliary component 22 further includes a driven gear 225 fixed to the right end of the shaft 222 , a driving gear 226 fixed to the right end of the main shaft 211 , and the driving gear 226 is meshed with the driven gear 225 for transmission.

[0033] In this embodiment, when the main shaft 211 rotates, the driving gear 226 cooperates with the driven gear 225 to drive the shaft rod 222 to rotate, and the shaft rod 222 simultaneously drives the left brush cylinder 223 and the right brush cylinder 224 to rotate synchronously.

[0034] Specifically, the screening mechanism 2 further includes a feed pipe 23 fixed to the left side of the upper end of the machine body 1 , and the lower end of the feed pipe 23 extends into the extension head 217 , and a hopper 24 is fixed on the top of the feed pipe 23 .

[0035] In this embodiment, unscreened rice can be poured into the hopper 24 and fall into the main body assembly 21 through the feed pipe 23 for subsequent screening.

[0036] Specifically, the screening mechanism 2 further includes a baffle 25 fixed on the right side of the body 1 , a material discharge port 26 opened at the right end of the body 1 , a chip discharge bucket 27 opened at the lower end of the body 1 , and a door 28 hinged at the front end of the body 1 .

[0037] In this embodiment, the sieved rice in the main component 21 falls out from the right end and is then discharged through the discharge port 26. In addition, the impurities sieved by the main component 21 can be discharged through the chip discharge bucket 27. The discharge port 26 and the chip discharge bucket 27 are separated by the baffle 25 to prevent the sieved rice and impurities from being mixed together.

[0038] The working principle and use process of the utility model are as follows: first, unscreened rice can be poured in through the hopper 24 and fall into the main body component 21 through the feed pipe 23 for subsequent screening, and then the main shaft 211 is driven to rotate through the output end of the motor 218, and the main shaft 211 drives the left screen 215 and the right screen 216 to rotate through the middle bracket 212, the left bracket 213 and the right bracket 214, thereby driving the internal rice to roll for screening; the screened rice in the main body component 21 falls out from the right end and is discharged through the discharge port 26. Furthermore, the impurities screened out by the main assembly 21 can be discharged through the chip removal bucket 27; and, when the main shaft 211 rotates, the driving gear 226 cooperates with the driven gear 225 to drive the shaft 222 to rotate, and the shaft 222 simultaneously drives the left brush cylinder 223 and the right brush cylinder 224 to rotate synchronously, so that when the main assembly 21 rotates, the left brush cylinder 223 and the right brush cylinder 224 can rotate in the opposite direction thereto, thereby cleaning the surfaces of the left screen 215 and the right screen 216 respectively, avoiding blockage caused by the adhesion of impurities, thereby affecting the screening effect.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rice screening device for conveniently adjusting the screening length, comprising a body (1), characterized in that: The machine body (1) is provided with a screening mechanism (2) for screening rice, and the screening mechanism (2) comprises: The main body component (21) comprises a main shaft (211) rotatably mounted inside the machine body (1), a middle bracket (212) fixed in the middle of the outer wall of the main shaft (211), a left bracket (213) and a right bracket (214) respectively fixed at the left and right ends of the outer wall of the middle bracket (212), two symmetrical left screens (215) mounted between the middle bracket (212) and the left bracket (213), two symmetrical right screens (216) mounted between the middle bracket (212) and the right bracket (214), an extension head (217) fixed at the left end of the left bracket (213), and a motor (218) mounted on the outer wall of the left end of the machine body (1) and used for driving the main shaft (211) to rotate; The auxiliary component (22) is arranged in the machine body (1) and is used to clean the impurities attached to the left screen (215) and the right screen (216).

2. A rice screening device that is convenient for adjusting the screening length according to claim 1, characterized in that: The main body component (21) further comprises a retaining frame (219) fixed to the left end of the inner wall of the body (1), and the retaining frame (219) is shielded below the left end of the extension head (217).

3. A rice screening device for conveniently adjusting the screening length according to claim 1, characterized in that: The auxiliary component (22) comprises shaft frames (221) fixed on both sides of the front upper end of the machine body (1), a shaft rod (222) rotatably mounted between the shaft frames (221) on both sides, and a left brush cylinder (223) and a right brush cylinder (224) respectively mounted on the outer walls of the left and right ends of the shaft rod (222).

4. A rice screening device for conveniently adjusting the screening length according to claim 3, characterized in that: The auxiliary component (22) further comprises a driven gear (225) fixed to the right end of the shaft (222), a driving gear (226) fixed to the right end of the main shaft (211), and the driving gear (226) and the driven gear (225) are meshed and transmitted.

5. The rice screening device for conveniently adjusting the screening length according to claim 1, characterized in that: The screening mechanism (2) further comprises a feed pipe (23) fixed to the left side of the upper end of the machine body (1), wherein the lower end of the feed pipe (23) extends into the extension head (217), and a hopper (24) is fixed on the top of the feed pipe (23).

6. A rice screening device for conveniently adjusting screening length according to claim 1, characterized in that: The screening mechanism (2) further comprises a baffle (25) fixed on the right side of the machine body (1), a material discharge port (26) opened at the right end of the machine body (1), a chip discharge bucket (27) opened at the lower end of the machine body (1), and a machine door (28) hinged at the front end of the machine body (1).

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