Screening device for flour processing

Abstract

The utility model discloses a screening device for flour processing, and relates to the field of screening machines, the screening device comprises a base, the top of the base is connected with a screening cylinder through an elastic piece, the bottom end of the screening cylinder is provided with a vibration motor, and the center of the top of the screening cylinder is provided with a feeding port; and feeding mechanisms in butt joint with the feeding opening are fixedly installed on the two sides of the periphery of the base, rotating mechanisms are installed in the output ends of the feeding mechanisms, the rotating mechanisms in the rotating state are used for controlling the feeding speed of flour, and the rotating mechanisms in the rotating state are used for preventing the flour in the screening barrel from escaping outwards. According to the vibrating screen, the feeding mechanism and the rotating mechanism are arranged, and the feeding mechanism and the rotating mechanism are not connected with the screening barrel of the vibrating screen, so that the feeding mechanism and the rotating mechanism are kept static in the vibrating process, and the situation that flour escapes to the air due to vibration is avoided.

Description

Technical Field

[0001] The utility model relates to the field of flour sieving machines, in particular to a sieving device for flour processing. Background Art

[0002] After the flour is powdered, it needs to be sieved to separate flours of different particle sizes, and the coarse material needs to be reprocessed until it is qualified.

[0003] In the prior art, a vibrating screen is generally used for screening. During the use of the vibrating screen, flour is manually sprinkled onto the top conical screen through the feed port. When the vibrating screen vibrates, the vibration force generated will cause part of the flour to escape into the air, resulting in waste. Utility Model Content

[0004] The purpose of the utility model is to provide a screening device for flour processing in order to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screening device for flour processing, comprising a base, the top of the base is connected to a screening drum through an elastic member, a vibration motor is installed at the bottom end of the screening drum, a feed port is opened at the top center of the screening drum, and feeding mechanisms docking with the feed port are fixedly installed on both sides of the outer periphery of the base, a rotating mechanism is installed inside the output end of the feeding mechanism, the rotating mechanism in a rotating state is used to control the feeding speed of flour, and the rotating mechanism in a rotating state is used to prevent the flour in the screening drum from escaping outwards; the feeding mechanism is used to provide guidance for the flour to be added to the inside of the screening drum.

[0006] As a further solution of the utility model: the elastic member includes a sleeve fixedly connected to the top of the base, the inner wall of the sleeve is slidably connected up and down with a telescopic column that penetrates to the top of the sleeve, the top of the telescopic column is connected to the bottom end of the screening cylinder, and a spring is connected between the elastic member and the screening cylinder, and the spring is installed on the outer periphery of the sleeve and the telescopic column.

[0007] As a further solution of the utility model: the feeding mechanism includes two vertical rods fixedly connected to both sides of the outer periphery of the base through a fixed frame, the top ends of the two vertical rods are fixedly connected to a connecting frame, the middle section of the connecting frame is formed with a disc, a funnel is installed above the disc and penetrates to the bottom end of the disc, the output end of the funnel is connected to a connecting tube, and the output end of the connecting tube is connected to a feed pipe plugged into the feed port.

[0008] As a further solution of the utility model: both ends of the connecting tube are open structures, and both end openings of the connecting tube are fixedly connected with end plates, and sealing components are fixedly connected on the butt joint surfaces of the connecting tube and the end plates.

[0009] As a further solution of the utility model: the rotating mechanism includes a rotating shaft rotatably installed between the two end plates, a plurality of flaps are equidistantly formed on the outer circumference of the rotating shaft, a speed regulating motor is installed on the outer side of one of the end plates, and the output end of the speed regulating motor passes through the end plate and is coaxially connected to one end of the rotating shaft.

[0010] As a further solution of the utility model: the inner circumference of the connecting tube has two symmetrical conical surfaces, the ends of the two conical surfaces that are far away from each other are narrow, and the ends of the two conical surfaces that are close to each other are wide.

[0011] As a further solution of the utility model: the edge of the flap in contact with the inner wall of the connecting tube is in contact with the inner circumference of the connecting tube.

[0012] As a further solution of the utility model: a plurality of conical screens with vertices facing upwards are installed inside the screening cylinder, and a discharge port aligned with the bottom edges of the conical screens is installed on the outer wall of the screening cylinder.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By setting the feeding mechanism and the rotating mechanism, the feeding mechanism and the rotating mechanism are not connected to the screening cylinder of the vibrating screen. Therefore, during the vibration process, the feeding mechanism and the rotating mechanism remain stationary, and the flour will not escape into the air due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 A partial enlarged view of the middle part;

[0017] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0018] Figure 4 For the utility model Figure 3 A partial enlarged view of point B in the middle.

[0019] In the figure: 1. base; 2. elastic member; 201. sleeve; 202. telescopic column; 203. spring; 3. screening cylinder; 4. discharge port; 5. fixing frame; 6. vertical rod; 7. connecting frame; 8. disc; 9. feed port; 10. funnel; 11. speed regulating motor; 12. connecting cylinder; 13. end plate; 14. rotating shaft; 15. flap; 16. feed pipe. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1 to Figure 4 In the embodiment of the utility model, a screening device for flour processing includes a base 1, a screening drum 3 is connected to the top of the base 1 through an elastic member 2, a vibration motor is installed at the bottom end of the screening drum 3, a feed port 9 is opened at the top center of the screening drum 3, and a feeding mechanism docking with the feed port 9 is fixedly installed on both sides of the outer periphery of the base 1, and a rotating mechanism is installed inside the output end of the feeding mechanism. The rotating mechanism in a rotating state is used to control the feeding speed of flour, and the rotating mechanism in a rotating state is used to prevent the flour in the screening drum 3 from escaping outward; the feeding mechanism is used to provide guidance for the flour to be added to the inside of the screening drum 3, the elastic member 2 includes a sleeve 201 fixedly connected to the top of the base 1, and the inner wall of the sleeve 201 is slidably connected to a telescopic column 202 that penetrates the top of the sleeve 201, the top of the telescopic column 202 is connected to the bottom end of the screening drum 3, and a spring 203 is connected between the elastic member 2 and the screening drum 3, and the spring 203 is installed on the outer periphery of the sleeve 201 and the telescopic column 202.

[0022] In this embodiment, when sifting flour, the flour is first sprinkled into the feeding mechanism, and then the vibration motor and the rotating mechanism are started. The vibration generated by the vibration motor realizes the up and down vibration of the screening drum 3, and the flour entering the feeding mechanism moves downward under the action of gravity and contacts with the rotating mechanism. The feeding speed of the rotating flour is controlled by controlling the rotation speed of the rotating mechanism.

[0023] When the vibration motor is running, due to the limitation of the sleeve 201 and the telescopic column 202, the screening cylinder 3 can only vibrate in the up and down directions. An anti-slip portion is formed at the bottom of the telescopic column 202. The diameter of the anti-slip portion is larger than the diameter of the telescopic column 202. The outer diameter of the telescopic column 202 is equal to the top opening diameter of the sleeve 201. The diameter of the anti-slip portion is equal to the non-opening outer diameter of the sleeve 201, thereby avoiding the problem of separation of the telescopic column 202 and the sleeve 201 during vibration.

[0024] Please refer to Figure 1 and Figure 3 The feeding mechanism includes two vertical rods 6 fixedly connected to both sides of the outer periphery of the base 1 through a fixing frame 5, the top ends of the two vertical rods 6 are fixedly connected to a connecting frame 7, the middle section of the connecting frame 7 is formed with a disc 8, a funnel 10 is installed above the disc 8 and penetrates to the bottom end of the disc 8, the output end of the funnel 10 is connected to a connecting tube 12, the output end of the connecting tube 12 is connected to a feeding pipe 16 plugged into the feeding port 9, both ends of the connecting tube 12 are open structures, and the openings at both ends of the connecting tube 12 are fixedly connected to end plates 13, and a sealing member is fixedly connected to the butt surface of the connecting tube 12 and the end plate 13.

[0025] In this embodiment: since the base 1 remains stable during the operation of the device, the feeding mechanism does not shake up and down with the vibration of the vibration motor. Flour is added to the funnel 10, and the flour moves downward along the inner wall of the funnel 10 under the action of gravity and enters the connecting cylinder 12. At this time, the rotating mechanism runs synchronously, and the rotating mechanism sends the flour entering the inner wall of the connecting cylinder 12 downward into the connecting cylinder 12, and through the feeding pipe 16, the flour enters the screening cylinder 3.

[0026] Please refer to Figure 3 and Figure 4 The rotating mechanism includes a rotating shaft 14 rotatably installed between two end plates 13, and a plurality of flaps 15 are equidistantly formed on the outer periphery of the rotating shaft 14. A speed regulating motor 11 is installed on the outer side of one end plate 13, and the output end of the speed regulating motor 11 passes through the end plate 13 and is coaxially connected to one end of the rotating shaft 14. The inner periphery of the connecting tube 12 has two symmetrical conical surfaces, and the ends of the two conical surfaces away from each other are narrow, and the ends of the two conical surfaces close to each other are wide. The edge of the flap 15 that contacts the inner wall of the connecting tube 12 fits the inner periphery of the connecting tube 12.

[0027] In this embodiment: by starting the speed regulating motor 11 and controlling the rotation speed of the speed regulating motor 11 through the controller, the speed regulating motor 11 drives the rotating shaft 14 to rotate, and the rotating shaft 14 synchronously drives multiple flaps 15 to rotate, and the flour moves downward into between two adjacent flaps 15, and rotates with the flaps 15 until it rotates to the lowest point, and the flour enters the feed pipe 16. In order to prevent the flaps 15 from lifting part of the flour upward again during the rotation process, the flour slides into the feed pipe 16 through the guidance of the conical surface of the connecting tube 12.

[0028] Please refer to Figure 1 and Figure 3 A plurality of cone-shaped screens with their vertices facing upwards are installed inside the screening cylinder 3, and a discharge port 4 with the bottom edge of the cone-shaped screens aligned therewith is installed on the outer wall of the screening cylinder 3.

[0029] In this embodiment, during the flour screening process of the screening drum 3 , the flour retained by the conical screen slides toward the lower point through the conical screen and is discharged through the discharge port 4 .

[0030] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A screening device for flour processing, comprising a base (1), the top of the base (1) being connected to a screening drum (3) via an elastic member (2), a vibration motor being installed at the bottom end of the screening drum (3), a feed port (9) being provided at the center of the top of the screening drum (3), characterized in that: A feeding mechanism docking with the feeding port (9) is fixedly mounted on both sides of the outer periphery of the base (1); a rotating mechanism is mounted inside the output end of the feeding mechanism; the rotating mechanism in a rotating state is used to control the feeding speed of flour, and the rotating mechanism in a rotating state is used to prevent the flour in the screening cylinder (3) from escaping outwards; The feeding mechanism is used to provide guidance for the flour to be added into the interior of the screening cylinder (3).

2. A flour processing screening device according to claim 1, characterized in that: The elastic member (2) comprises a sleeve (201) fixedly connected to the top of the base (1); the inner wall of the sleeve (201) is slidably connected to a telescopic column (202) penetrating to the top of the sleeve (201); the top of the telescopic column (202) is connected to the bottom of the screening cylinder (3); and a spring (203) is connected between the elastic member (2) and the screening cylinder (3); the spring (203) is installed on the outer periphery of the sleeve (201) and the telescopic column (202).

3. A flour processing screening device according to claim 1, characterized in that: The feeding mechanism comprises two vertical rods (6) fixedly connected to both sides of the outer periphery of the base (1) through a fixing frame (5); the top ends of the two vertical rods (6) are fixedly connected to a connecting frame (7); a disc (8) is formed in the middle section of the connecting frame (7); a funnel (10) is installed above the disc (8) and extends to the bottom end of the disc (8); the output end of the funnel (10) is connected to a connecting tube (12); the output end of the connecting tube (12) is connected to a feeding pipe (16) plugged into the feeding port (9).

4. A flour processing screening device according to claim 3, characterized in that: Both ends of the connecting tube (12) are open structures, and both end openings of the connecting tube (12) are fixedly connected to end plates (13), and sealing components are fixedly connected to the butt joint surfaces of the connecting tube (12) and the end plates (13).

5. A flour processing screening device according to claim 4, characterized in that: The rotating mechanism comprises a rotating shaft (14) rotatably mounted between the two end plates (13); a plurality of flaps (15) are equidistantly formed on the outer circumference of the rotating shaft (14); a speed regulating motor (11) is mounted on the outer side of one of the end plates (13); an output end of the speed regulating motor (11) passes through the end plate (13) and is coaxially connected to one end of the rotating shaft (14).

6. A flour processing screening device according to claim 5, characterized in that: The inner circumference of the connecting tube (12) has two symmetrical conical surfaces, the ends of the two conical surfaces that are away from each other are narrow, and the ends of the two conical surfaces that are close to each other are wide.

7. A flour processing screening device according to claim 6, characterized in that: The edge of the flap (15) that contacts the inner wall of the connecting tube (12) fits the inner circumference of the connecting tube (12).

8. A flour processing screening device according to claim 1, characterized in that: A plurality of conical screens with their apexes facing upwards are installed inside the screening cylinder (3), and a discharge port (4) aligned with the bottom edges of the conical screens is installed on the outer wall of the screening cylinder (3).

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