CN221908195U - Rice processing drum screen scarifier - Google Patents

Abstract

The utility model relates to the technical field of rice processing and screening equipment, and discloses a rice processing drum screening machine, comprising a machine body, wherein a fixed cylinder is arranged on the machine body, a screen cylinder is arranged in the fixed cylinder, the fixed cylinder and the screen cylinder are coaxial, the axes of the fixed cylinder and the screen cylinder are parallel to a horizontal plane, the fixed cylinder is fixedly connected to the machine body, two ends of the screen cylinder are rotatably connected to side plates at both sides of the machine body through a rotating shaft, one end of the rotating shaft is connected to a motor fixed on a side plate at one side of the machine body, spiral discharging mechanisms are arranged in the fixed cylinder and the screen cylinder, and a knocking mechanism for preventing the screen cylinder from being blocked is also arranged on the side plates at both sides of the machine body, which can not only effectively prevent the screen cylinder from being blocked, but also has the advantages of good screening effect, high screening efficiency, and the like.

Description

A rice processing drum screening machine

Technical Field

The utility model relates to the technical field of rice processing and screening equipment, in particular to a rice processing drum screening machine.

Background Art

Rice is a finished product made from paddy through multiple processes and is the main food of people in southern my country. Rice usually needs to be screened using a screening machine before processing to remove impurities attached to the rice. However, the existing drum screening device for rice processing still has some shortcomings.

For example: the authorization announcement number is CN 216368834U, a kind of cylindrical primary cleaning screen device for rice processing. The utility model is a cylindrical primary cleaning screen device for rice processing, which can drive the screen hole cylinder to rotate by a motor. At this time, fine stones and broken rice can be screened out through the screen holes on the screen hole cylinder, and when the screen hole cylinder rotates, the turning plate can turn the rice, and at this time, the fine and light debris in the rice can be turned up, and then the fine and light debris can be sucked out by the exhaust fan, so as to avoid the situation that the impurities are buried in the rice and cannot be sucked out. The impurity removal quality is greatly improved, the screening work can be completed evenly and efficiently, and the operation is simple and convenient.

However, the device still has the following defects: the sieve cylinder cannot be cleaned in real time, and when the sieve holes are blocked, the screening is incomplete and the screening efficiency is low. In addition, the sieve cylinder is tilted, and the material can easily slide to the lower end, resulting in a large amount of material being accumulated at the lower end of the sieve cylinder and discharged from the discharge port 11 when the material is fully screened. Due to insufficient screening, the rice discharged from the discharge port 11 is still mixed with broken rice or fine impurities that have not been completely screened out, which urgently needs to be improved.

Utility Model Content

The utility model aims to provide a rice processing drum screening machine, which can not only effectively prevent the clogging of the screen drum, but also has the advantages of good screening effect, high screening efficiency and the like.

The above technical objectives of the utility model are achieved through the following technical solutions:

A rice processing drum screening machine comprises a machine body, wherein a fixed cylinder is provided on the machine body, a screen cylinder is provided in the fixed cylinder, the fixed cylinder and the screen cylinder are coaxial, the axes of the fixed cylinder and the screen cylinder are parallel to a horizontal plane, the fixed cylinder is fixedly connected to the machine body, two ends of the screen cylinder are rotatably connected to side plates on both sides of the machine body through a rotating shaft, one end of the rotating shaft is connected to a motor fixed on a side plate on one side of the machine body, spiral discharging mechanisms are provided in the fixed cylinder and the screen cylinder, respectively, and a knocking mechanism for preventing the screen cylinder from being blocked is also provided on the side plates on both sides of the machine body.

By adopting the above technical solution, the motor drives the screen drum to rotate relative to the fixed drum by driving the rotating shaft to rotate, so that the screen drum rotates with the screened rice, and the broken rice and fine impurities in the rice are discharged through the screen holes of the screen drum and fall into the inner cavity of the fixed drum, and the screened rice remains in the screen drum and is then discharged respectively through the spiral discharging mechanisms in the screen drum and the fixed drum. The screen drum is continuously struck by the striking mechanism during the rotating screening process, so that the surface of the screen drum continuously vibrates, thereby achieving the purpose of preventing the screen drum from being blocked, so that the rice screening effect is better and the screening efficiency is higher.

The utility model is further configured as follows: one end of the fixed cylinder is provided with a discharge port 1, one end of the screen cylinder is provided with a discharge port 2, and the other end of the screen cylinder is also provided with a feed port, the discharge port 1 is fixed at one end of the fixed cylinder, the discharge port 2 and the feed port are respectively fixed on the side plates on both sides of the machine body and are respectively opposite to the openings at both ends of the screen cylinder, the spiral discharge mechanisms in the fixed cylinder and the screen cylinder both include spiral plates, the spiral plates in the fixed cylinder are fixed on the outer wall of the screen cylinder, and the spiral plates in the screen cylinder are fixed on the inner wall of the screen cylinder.

By adopting the above technical scheme, the first discharge port is used to discharge the broken rice or fine impurities entering the fixed cylinder, the second discharge port is used to discharge the qualified rice in the screen cylinder, and the feed port is used to put the rice to be screened into the screen cylinder. The spiral plate in the fixed cylinder continuously pushes the broken rice or impurities in the fixed cylinder to the first discharge port during the continuous rotation of the screen cylinder, and the qualified rice inside the screen cylinder will flow to the second discharge port along the direction of the spiral plate inside the screen cylinder while the screen cylinder is continuously rotating. The whole process is carried out at a uniform speed, and the screen cylinder is continuously rotating. The spiral plate can also continuously turn the rice in the screen cylinder during the rotation of the screen cylinder, so that the broken rice and fine impurities mixed in the rice are fully screened out, and there is no need to tilt the fixed cylinder and the screen cylinder, and there will be no problems such as rice piling up at one end to cause insufficient screening.

The utility model is further configured as follows: a rubber pad is provided on the spiral edge of the spiral plate in the fixed cylinder, and the rubber pad abuts against the inner wall of the fixed cylinder.

By adopting the above technical solution, the provision of the rubber pad on the spiral edge of the spiral plate in the fixed barrel is not only conducive to the removal of materials in the fixed barrel, but also prevents the spiral plate from directly contacting the fixed barrel and causing damage to the inner wall of the fixed barrel, thereby effectively improving the service life of the fixed barrel and the spiral plate in the fixed barrel.

The utility model is further configured as follows: the striking mechanism includes a striking drive shaft parallel to the rotating shaft, one end of the striking drive shaft is rotatably connected to the side plate of the machine body, the other end of the striking drive shaft is fixedly provided with a driving turntable, the striking drive shaft is connected to the rotating shaft through a synchronous belt, a fixing pin is provided on one side of the center of the driving turntable, the fixing pin is rotatably connected to one end of the driving connecting rod, the other end of the driving connecting rod is rotatably connected to a longitudinal striking rod, the longitudinal striking rod is slidably matched with the longitudinal through groove on the fixed cylinder, and a rubber pad is provided at the bottom end of the longitudinal striking rod.

By adopting the above technical scheme, when the rotating shaft rotates, the synchronous belt drives the knocking drive shaft to rotate synchronously, so that the driving turntable fixedly connected to the knocking drive shaft rotates synchronously, and when the driving turntable rotates, it drives the driving connecting rod to make a circular motion at one end thereof that is rotatably connected to the driving turntable, so that the other end of the driving connecting rod drives the longitudinal knocking rod to move back and forth up and down along the longitudinal through groove, thereby continuously knocking the screen cylinder, so that broken rice or fine impurities in the mesh holes on the screen cylinder can be discharged smoothly and quickly, which achieves the effect of preventing the screen cylinder from being blocked on the one hand, and improves the screening efficiency on the other hand, killing two birds with one stone.

The utility model is further configured as follows: a dust removal pipe is provided on one side of the screen cylinder close to the second discharge port, and the dust removal pipe is connected to the dust collector.

By adopting the above technical solution, when the spiral plate in the screen cylinder is turning the rice, the lighter dust in the rice will float in the inner cavity of the screen cylinder. The dust can be effectively collected and processed through the dust removal pipe and the dust collector, thereby further improving the purity of the rice after screening and preventing the dust from escaping into the air and polluting the production environment.

The beneficial effects of the utility model are:

1. In the utility model, the motor drives the screen drum to rotate relative to the fixed drum by driving the rotating shaft to rotate, so that the screen drum rotates with the screened rice, and the broken rice and fine impurities in the rice are discharged through the screen holes of the screen drum and fall into the inner cavity of the fixed drum, and the screened rice remains in the screen drum, and then is discharged respectively through the spiral discharging mechanisms in the screen drum and the fixed drum. The screen drum is continuously struck by the striking mechanism during the rotating screening process, so that the surface of the screen drum is continuously vibrated, thereby achieving the purpose of preventing the screen drum from being blocked, so that the rice screening effect is better and the screening efficiency is higher.

2. In the utility model, the first discharge port is used to discharge the broken rice or fine impurities entering the fixed cylinder, the second discharge port is used to discharge the qualified rice in the screen cylinder, and the feed port is used to put the rice to be screened into the screen cylinder. The spiral plate in the fixed cylinder continuously pushes the broken rice or impurities in the fixed cylinder to the first discharge port during the continuous rotation of the screen cylinder, and the qualified rice inside the screen cylinder will flow to the second discharge port along the direction of the spiral plate inside the screen cylinder while the screen cylinder is continuously rotating. The whole process is carried out at a uniform speed, and the screen cylinder is continuously rotating. The spiral plate can also continuously turn the rice in the screen cylinder during the rotation of the screen cylinder, so that the broken rice and fine impurities mixed in the rice are fully screened out, there is no need to tilt the fixed cylinder and the screen cylinder, and there will be no problem of rice piling up at one end to cause insufficient screening.

3. The provision of the rubber pad on the spiral edge of the spiral plate in the fixed barrel of the utility model is not only conducive to the removal of materials in the fixed barrel, but also prevents the spiral plate from directly contacting the fixed barrel and causing damage to the inner wall of the fixed barrel, thereby effectively improving the service life of the fixed barrel and the spiral plate in the fixed barrel.

4. In the utility model, when the rotating shaft rotates, the striking drive shaft is driven to rotate synchronously through the synchronous belt, so that the driving turntable fixedly connected to the striking drive shaft rotates synchronously, and when the driving turntable rotates, it drives the one end of the driving connecting rod rotatably connected to it to make a circular motion, so that the other end of the driving connecting rod drives the longitudinal striking rod to reciprocate up and down along the longitudinal through groove, thereby continuously striking the screen cylinder, so that broken rice or fine impurities in the mesh holes on the screen cylinder can be discharged smoothly and quickly, which achieves the effect of preventing the screen cylinder from being blocked on the one hand, and improves the screening efficiency on the other hand, killing two birds with one stone.

5. In the process of turning the rice by the spiral plate in the screen cylinder of the utility model, the lighter dust in the rice will float in the inner cavity of the screen cylinder. The dust can be effectively collected and processed through the dust removal pipe and the dust collector, thereby further improving the purity of the rice after screening and preventing the dust from escaping into the air and polluting the production environment.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

Fig. 1 is a schematic cross-sectional structure diagram of a rice processing drum cleaning machine according to the present invention.

FIG. 2 is a schematic structural diagram of a beating mechanism in a rice processing drum cleaning machine according to the present invention.

In the figure, 1. machine body; 2. fixed cylinder; 3. screen cylinder; 4. rotating shaft; 5. side plate; 6. motor; 7. spiral discharging mechanism; 8. knocking mechanism; 9. discharging port 1; 10. feeding port; 11. discharging port 2; 12. spiral plate; 13. knocking drive shaft; 14. driving turntable; 15. synchronous belt; 16. fixing pin; 17. driving connecting rod; 18. longitudinal knocking rod; 19. longitudinal through groove; 20. dust removal pipe; 21. dust collector.

DETAILED DESCRIPTION

The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

As shown in Figs. 1 and 2, a rice processing drum screening machine comprises a machine body 1, wherein a fixed cylinder 2 is provided on the machine body 1, a screen cylinder 3 is provided in the fixed cylinder 2, the fixed cylinder 2 and the screen cylinder 3 are coaxial, the axes of the fixed cylinder 2 and the screen cylinder 3 are parallel to the horizontal plane, the fixed cylinder 2 is fixedly connected to the machine body 1, both ends of the screen cylinder 3 are rotatably connected to the side plates 5 on both sides of the machine body 1 through a rotating shaft 4, one end of the rotating shaft 4 is connected to a motor 6 fixed on the side plate 5 on one side of the machine body 1, spiral discharging mechanisms 7 are provided in the fixed cylinder 2 and the screen cylinder 3, respectively, and a knocking mechanism 8 for preventing the screen cylinder 3 from being blocked is also provided on the side plates 5 on both sides of the machine body 1.

Furthermore, one end of the fixed cylinder 2 is provided with a discharge port 19, one end of the screen cylinder 3 is provided with a discharge port 2 11, and the other end of the screen cylinder 3 is also provided with a feed port 10, the discharge port 19 is fixed at one end of the fixed cylinder 2, the discharge port 2 11 and the feed port 10 are respectively fixed on the side plates 5 on both sides of the body 1 and are respectively opposite to the openings at both ends of the screen cylinder 3, the spiral discharge mechanisms 7 in the fixed cylinder 2 and the screen cylinder 3 both include a spiral plate 12, the spiral plate 12 in the fixed cylinder 2 is fixed on the outer wall of the screen cylinder 3, and the spiral plate 12 in the screen cylinder 3 is fixed on the inner wall of the screen cylinder 3.

Furthermore, a rubber pad is provided on the spiral edge of the spiral plate 12 in the fixed tube 2 , and the rubber pad abuts against the inner wall of the fixed tube 2 .

Furthermore, the knocking mechanism 8 includes a knocking drive shaft 13 parallel to the rotating shaft 4, one end of the knocking drive shaft 13 is rotatably connected to the side panel 5 of the body 1, and the other end of the knocking drive shaft 13 is fixedly provided with a driving turntable 14, the knocking drive shaft 13 is connected to the rotating shaft 4 through a synchronous belt 15, and a fixing pin 16 is provided on one side of the center of the driving turntable 14, the fixing pin 16 is rotatably connected to one end of the driving connecting rod 17, and the other end of the driving connecting rod 17 is rotatably connected to a longitudinal knocking rod 18, the longitudinal knocking rod 18 is slidably matched with the longitudinal through groove 19 on the fixed cylinder 2, and a rubber pad is provided at the bottom end of the longitudinal knocking rod 18.

Furthermore, a dust removal pipe 20 is provided on one side of the screen cylinder 3 close to the second discharge port 11 , and the dust removal pipe 20 is connected to a dust collector 21 .

The working principle of the utility model is as follows: first, the motor 6 is started, and the motor 6 drives the screen drum 3 to rotate relative to the fixed drum 2 by driving the rotating shaft 4 to rotate, so that the screen drum 3 rotates with the screened rice, and the broken rice and fine impurities in the rice are discharged through the screen holes of the screen drum 3 and fall into the inner cavity of the fixed drum 2, and the screened rice remains in the screen drum 3, and the spiral plate 12 in the fixed drum 2 continuously pushes the broken rice or impurities in the fixed drum 2 to the discharge port 1 9 during the continuous rotation of the screen drum 3, and the qualified rice inside the screen drum 3 will flow to the discharge port 2 11 along the direction of the spiral plate 12 inside the screen drum 3 while the screen drum 3 is continuously rotating, and the spiral plate 12 can also continuously turn the rice in the screen drum 3 during the rotation of the screen drum 3, so that the broken rice and fine impurities mixed in the rice are fully screened out, and there is no need to set the fixed drum 2 and the screen drum 3 tilted, and there will be no problem of rice piling up at one end to cause insufficient screening.

When the rotating shaft 4 rotates, it also drives the knocking drive shaft 13 in the knocking mechanism 8 to rotate synchronously through the synchronous belt 15, so that the driving turntable 14 fixedly connected to the knocking drive shaft 13 rotates synchronously. When the driving turntable 14 rotates, it drives the driving connecting rod 17 to make a circular motion at one end thereof that is rotatably connected thereto, so that the other end of the driving connecting rod 17 drives the longitudinal knocking rod 18 to reciprocate up and down along the longitudinal through groove 19, thereby continuously knocking the screen cylinder 3, so that broken rice or fine impurities in the mesh holes of the screen cylinder 3 can be discharged smoothly and quickly, which, on the one hand, achieves the effect of preventing the screen cylinder 3 from being blocked, and on the other hand, improves the screening efficiency, killing two birds with one stone.

Furthermore, when the spiral plate 12 in the screen cylinder 3 is turning the rice, the lighter dust in the rice will float in the inner cavity of the screen cylinder 3. The dust can be effectively collected and processed through the dust removal pipe 20 and the dust collector 21, thereby further improving the purity of the rice after screening and preventing the dust from escaping into the air and polluting the production environment.

Claims (5)

1. A rice processing drum screen cleaning machine, characterized in that it comprises a machine body (1), a fixed cylinder (2) is provided on the machine body (1), a screen cylinder (3) is provided in the fixed cylinder (2), the fixed cylinder (2) and the screen cylinder (3) are coaxial, the axes of the fixed cylinder (2) and the screen cylinder (3) are parallel to the horizontal plane, the fixed cylinder (2) is fixedly connected to the machine body (1), the two ends of the screen cylinder (3) are rotatably connected to the side plates (5) on both sides of the machine body (1) through a rotating shaft (4), one end of the rotating shaft (4) is connected to a motor (6) fixed on the side plate (5) on one side of the machine body (1), the fixed cylinder (2) and the screen cylinder (3) are respectively provided with a spiral discharging mechanism (7), and the side plates (5) on both sides of the machine body (1) are also provided with a knocking mechanism (8) for preventing the screen cylinder (3) from being blocked. 2. A rice processing drum screening machine according to claim 1, characterized in that: one end of the fixed cylinder (2) is provided with a discharge port 1 (9), one end of the screen cylinder (3) is provided with a discharge port 2 (11), and the other end of the screen cylinder (3) is also provided with a feed port (10), the discharge port 1 (9) is fixed to one end of the fixed cylinder (2), the discharge port 2 (11) and the feed port (10) are respectively fixed to the side plates (5) on both sides of the machine body (1) and are respectively opposite to the openings at both ends of the screen cylinder (3), the spiral discharge mechanisms (7) in the fixed cylinder (2) and the screen cylinder (3) both include a spiral plate (12), the spiral plate (12) in the fixed cylinder (2) is fixed to the outer wall of the screen cylinder (3), and the spiral plate (12) in the screen cylinder (3) is fixed to the inner wall of the screen cylinder (3). 3. A rice processing drum cleaning machine according to claim 2, characterized in that: a rubber pad is provided on the spiral edge of the spiral plate (12) inside the fixed cylinder (2), and the rubber pad abuts against the inner wall of the fixed cylinder (2). 4. A rice processing drum screening machine according to claim 1, characterized in that: the knocking mechanism (8) comprises a knocking drive shaft (13) parallel to the rotating shaft (4), one end of the knocking drive shaft (13) is rotatably connected to the side plate (5) of the machine body (1), the other end of the knocking drive shaft (13) is fixedly provided with a driving turntable (14), the knocking drive shaft (13) is connected to the rotating shaft (4) through a synchronous belt (15), a fixing pin (16) is provided on one side of the center of the driving turntable (14), the fixing pin (16) is rotatably connected to one end of a driving connecting rod (17), the other end of the driving connecting rod (17) is rotatably connected to a longitudinal knocking rod (18), the longitudinal knocking rod (18) is slidably matched with a longitudinal through groove (19) on the fixed cylinder (2), and a rubber pad is provided at the bottom end of the longitudinal knocking rod (18). 5. A rice processing drum screening machine according to claim 2, characterized in that: a dust removal pipe (20) is provided on one side of the screen cylinder (3) close to the second discharge port (11), and the dust removal pipe (20) is connected to a dust collector (21).