Screening device for coffee beans
By designing a coffee bean screening device with a screening box, feeding and dust removal mechanisms, and utilizing the rotating sweeping and vibration methods of the screening disc and brush rod, the problems of large footprint, high cost and low efficiency of existing equipment are solved, and efficient coffee bean grading and screening is achieved.
Patent Information
- Application Number
- CN202422553834.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing coffee bean screening equipment occupies a large area, is costly and has low screening efficiency.
A coffee bean screening device is designed, which includes a screening box, a feeding mechanism and a dust removal mechanism. The screening device uses the cooperation of components such as a screening plate, a rotating brush rod and a lifting rod to achieve rapid grading and screening of coffee beans through rotating sweeping and up and down vibration.
It realizes the rapid screening of coffee beans, reduces the equipment footprint and cost, and improves the screening efficiency.
Smart Images
Figure CN223324980U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of coffee processing, in particular to a screening device for coffee beans. Background Art
[0002] After fresh coffee cherries are picked from the coffee tree, they first need to go through multiple processes such as peeling, degumming, grading and screening, drying, storage, shelling, polishing, etc., and then after roasting, they become coffee beans that we can buy on the market. Screening coffee beans is a very important step in the coffee processing process. Coffee beans vary in size, and coffee beans of different particle sizes have different qualities. In order to obtain high-quality coffee beans, the coffee beans need to be graded. Some companies in the existing technology use conveyor belts to screen coffee beans. The equipment used occupies a large area, is costly, and has low screening efficiency. For this reason, we provide a screening device for coffee beans. Utility Model Content
[0003] The purpose of the present invention is to provide a coffee bean screening device in order to solve the above problems.
[0004] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0005] The screen mechanism comprises a screen box, a screen box is provided on the bottom plate, a feeding mechanism and a dust removal mechanism are provided on the bottom plate, and the screen mechanism comprises a screen plate arranged inside the screen box, the screen plate divides the inside of the screen box into multiple layers of cavities, a screen motor is provided at the center of the top of the screen box, the screen motor is connected to a screen shaft through a coupling, the screen shaft passes through the screen box and is rotatably connected to the bottom plate, the screen shaft is located inside the screen box, a plurality of rotating brush rods are provided on each layer, a soft brush is installed at the lower end of the rotating brush rod, a plurality of lifting rods are provided at the bottom of the screen plate, a fixed plate is fixedly installed on the inner wall of the screen box, the lifting rod is slidably connected to the fixed plate, a spring is provided between the screen plate and the fixed plate, a plurality of upper balls are provided at the bottom of the screen plate, a rotating crank is provided on the screen shaft and is located below the screen plate, a pair of lower balls are symmetrically provided on the upper end of the rotating crank, the lower balls are slidably connected to the screen plate, and a discharge port is provided on each layer of the cavity of the screen box.
[0006] Further settings: There is no contact between the soft brush and the screening plate. The soft brush material has moderate hardness and can rotate and sweep the coffee beans without causing damage to them.
[0007] Further configuration: screening holes are provided on the screening disk, the diameters of the screening holes decrease from top to bottom, and the screening disk is rotatably connected to the screening shaft.
[0008] Further configuration: the rotating brush rod is a curved rod, and when the screening shaft drives the rotating brush rod to rotate, the soft brush at the lower end of the rotating brush rod sweeps the coffee beans so that the coffee beans that fail to pass through the screening holes move to the edge to the discharge port.
[0009] Further configuration: a spring is sleeved on the lifting rod, the lifting rod passes through the fixed plate and a lock seal is fixedly installed at one end, and no less than three lifting rods are provided.
[0010] Further configuration: the diameter of the upper sphere is the same as that of the lower sphere, the upper spheres are arranged in a circle around the screening shaft below the screening disk, the upper spheres and the lower spheres are at the same distance from the screening shaft, and when the screening shaft drives the lower sphere on the rotating crank to rotate, the screening disk is lifted and vibrated on the screening shaft through the relative squeezing of the lower sphere and the upper sphere.
[0011] Further configuration: the box body mechanism also includes a feed box arranged on the top of the screening box, a movable box door is provided on the surface of the screening box, a handle is provided on the movable box door, support legs are fixedly installed at the four corners of the bottom plate, a movable box door is provided on the screening box, and a pair of box door handles are provided on the movable box door.
[0012] Further arrangement: the feeding mechanism includes a feeding pipe, a feeding motor is provided at the top of the feeding pipe, a feeding shaft is provided inside the feeding pipe, the feeding motor is connected to the feeding shaft through a coupling, feeding blades are provided on the feeding shaft, a feeding box is provided on the base, the bottom end of the feeding shaft is rotatably connected to the bottom of the feeding box, a loading pipe is provided at the upper end of the feeding motor, and one end of the loading pipe passes through and extends into the feed box.
[0013] Further configuration: the dust removal mechanism includes a dust removal box, a dust removal suction pipe is provided at the upper end of the dust removal box, the other end of the dust removal suction pipe extends into the screening box and is fixedly installed with a dust removal suction head, a dust removal pump is provided on one side of the dust removal box, the dust removal pump port is provided in the dust removal box and is installed with a filter.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0015] The coffee bean screening device, through the mutual cooperation of the lifting rod, the fixed plate, the rotating brush rod body and other components, moves the coffee beans by rotating sweeping and up and down vibration, so that smaller coffee beans move to the lower layer through the screening holes on the screening plate and larger coffee beans are screened out from the discharge port of the layer by the soft brush, thereby achieving the effect of quickly screening out the coffee beans. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative labor.
[0017] Figure 1 This is a schematic structural diagram of a coffee bean screening device according to the present invention;
[0018] Figure 2 This is a partial structural diagram of a coffee bean screening device according to the present invention;
[0019] Figure 3 This is a schematic top view of the structure of a coffee bean screening device according to the present invention;
[0020] Figure 4 yes Figure 3 Cross-sectional view at HH in the middle;
[0021] Figure 5 yes Figure 4 Cross-sectional view at JJ in the middle;
[0022] Figure 6 yes Figure 4 Cross-sectional view at II in the middle.
[0023] The following are the descriptions of the reference numerals:
[0024] 1. Screening mechanism; 11. Screening motor; 12. Screening shaft; 13. Rotating brush rod; 14. Soft brush; 15. Upper sphere; 16. Lower sphere; 17. Rotating crank; 18. Spring; 19. Fixed plate; 110. Lifting rod; 111. Lock seal; 112. Screening disc; 2. Box mechanism; 21. Screening box; 22. Bottom plate; 23. Discharge port; 24. Movable box door; 25. Box door handle; 26. Support legs; 27. Feed box; 3. Dust removal mechanism; 31. Dust removal box; 32. Dust removal pump; 33. Dust removal suction pipe; 34. Dust removal nozzle; 4. Feeding mechanism; 41. Feeding motor; 42. Feeding pipe; 43. Feeding box; 44. Feeding shaft; 45. Feeding blades; 46. Loading pipe. DETAILED DESCRIPTION
[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.
[0026] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] like Figures 1-6 As shown, a screening device for coffee beans includes a box mechanism 2, which includes a bottom plate 22, a screening box 21 is provided on the bottom plate 22, a feeding mechanism 4 and a dust removal mechanism 3 are provided on the bottom plate 22, and also includes a screening mechanism 1 for screening coffee beans.
[0029] In this embodiment, the box mechanism 2 includes a feed box 27 arranged on the top of the screening box 21, support legs 26 are fixedly installed at the four corners of the bottom plate 22, a movable box door 24 is provided on the screening box 21, and a pair of box door handles 25 are provided on the movable box door 24; the screening mechanism 1 includes at least two layers of screening discs 112 arranged inside the screening box 21, the screening discs 112 are provided with screening holes, and the size of the screening holes decreases from top to bottom, the screening discs 112 are rotatably connected to the screening shaft 12, and the screening disc 112 divides the inside of the screening box 21 into multiple cavities. A screening motor 11 is provided at the top center of the screening box 21, and the screening motor 11 is connected to the screening shaft 12 through a coupling. The screening shaft 12 passes through the inside of the screening box 21 and the bottom plate 2 2 is rotated and connected, the screening shaft 12 is located inside the screening box 21, and each layer is provided with a plurality of rotating brush rods 13. The rotating brush rod 13 is a curved rod, and a soft brush 14 is installed at the lower end of the rotating brush rod 13. The soft brush 14 does not contact the screening plate 112. The soft brush 14 is made of moderate hardness and can rotate and sweep the coffee beans without damaging them. A plurality of lifting rods 110 are provided at the bottom end of the screening plate 112. The lifting rod 110 passes through the fixed plate 19 and is fixedly installed with a lock seal 111 at one end. There are no less than three lifting rods 110. The inner wall of the screening box 21 is fixedly installed with a fixed plate 19. The lifting rod 110 is slidably connected to the fixed plate 19. A spring 18 is provided between the screening plate 112 and the fixed plate 19. The screening plate 1 A plurality of upper spheres 15 are provided at the bottom of 12, and a rotating crank 17 is provided on the screening shaft 12 below the screening disc 112. A pair of lower spheres 16 are symmetrically provided on the upper end of the rotating crank 17. The lower spheres 16 are slidably connected to the screening disc 112. The diameter of the upper sphere 15 is the same as that of the lower sphere 16. The upper spheres 15 are arranged in a circle below the screening disc 112 around the screening shaft 12. The upper spheres 15 and the lower spheres 16 are at the same distance from the screening shaft 12. When the screening shaft 12 drives the lower sphere 16 on the rotating crank 17 to rotate, the screening disc 112 is lifted and vibrated on the screening shaft 12 through the relative extrusion of the lower spheres 16 and the upper spheres 15. A discharge port 23 is provided on each layer of the cavity of the screening box 21. The screening shaft 12 rotates The rotating brush rod 13 is driven to rotate, and the soft brush 14 at the lower end of the rotating brush rod 13 will continuously sweep the coffee beans. At the same time, the rotating crank 17 is driven to rotate by the rotation of the screening shaft 12, and the lower sphere 16 at the upper end of the rotating crank 17 will continuously be squeezed relative to the upper sphere 15 at the lower end of the screening plate 112. Since the lower end edge of the screening plate 112 is provided with a lifting rod 110 with a spring 18, the screening plate 112 vibrates up and down along the rod, and the coffee beans are moved in the form of rotation, sweeping and up and down vibration, so that smaller coffee beans move to the lower layer through the screening holes on the screening plate 112 and larger coffee beans are screened out from the discharge port 23 of this layer by the soft brush 14, thereby achieving the effect of quickly screening out the coffee beans.
[0030] In this embodiment: the feeding mechanism 4 includes a feeding tube 42, a feeding motor 41 is provided at the top of the feeding tube 42, a feeding shaft 44 is provided inside the feeding tube 42, the feeding motor 41 is connected to the feeding shaft 44 through a coupling, a feeding blade 45 is provided on the feeding shaft 44, a feeding box 43 is provided on the base, the bottom end of the feeding shaft 44 is rotatably connected to the bottom of the feeding box 43, and a loading pipe 46 is provided at the upper end of the feeding tube 42, and one end of the loading pipe 46 passes through and extends into the feed box 27.
[0031] In this embodiment: the dust removal mechanism 3 includes a dust removal box 31, a dust removal suction pipe 33 is provided at the upper end of the dust removal box 31, and the other end of the dust removal suction pipe 33 is extended into the screening box 21 and fixedly installed with a dust removal suction head 34, a dust removal pump 32 is provided on one side of the dust removal box 31, and the pump port of the dust removal pump 32 is provided in the dust removal box 31 and is installed with a filter screen. The dust generated during the screening process can be sucked into the dust removal box 31 through the dust removal suction pipe 33 and the dust removal suction head 34, thereby achieving the effect of reducing dust flying.
[0032] The working principle and use process of the utility model are as follows: the screening motor 11 is started, and the screening motor 11 drives the screening shaft 12 to rotate, and the coffee beans are fed to the feeding box 43. Then the feeding motor 41 is started to drive the feeding shaft 44 to rotate. The rotation of the feeding shaft drives the feeding blades 45 to rotate, so that the coffee beans in the feeding box 43 move upward in the feeding pipe 42, pass through the feeding pipe 46 and enter the feeding box 27. After entering the screening box 21, the coffee beans first fall on the screening plate 112. The rotation of the screening shaft 12 drives the rotating brush rod 13 to rotate. The soft brush 14 at the lower end of the rotating brush rod 13 rotates to continuously sweep the coffee beans. At the same time, the rotation of the screening shaft 12 drives the rotating crank 17 to rotate, and the lower sphere 16 at the upper end of the rotating crank 17 is constantly squeezed relative to the upper sphere 15 at the lower end of the screening plate 112. Since the lower end edge of the screening plate 112 is provided with a lifting rod 110 with a spring 18, the screening plate 112 vibrates up and down along the rod, and the coffee beans are moved by rotating sweeping and vibrating up and down, so that smaller coffee beans move to the lower layer through the screening holes on the screening plate 112 and larger coffee beans are screened out from the discharge port 23 of this layer by the soft brush 14, thereby achieving the effect of quickly screening out the coffee beans.
[0033] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.
Claims
1. A coffee bean screening device, comprising a box mechanism (2), characterized in that: The box mechanism (2) comprises a bottom plate (22), a screening box (21) is provided on the bottom plate (22), a feeding mechanism (4) and a dust removal mechanism (3) are provided on the bottom plate (22), and a screening mechanism (1) for screening coffee beans; the screening mechanism (1) comprises screening discs (112) arranged at least two layers inside the screening box (21), the screening discs (112) divide the inside of the screening box (21) into multiple layers of cavities, a screening motor (11) is provided at the top center of the screening box (21), the screening motor (11) is connected to a screening shaft (12) through a coupling, the screening shaft (12) passes through the inside of the screening box (21) and is rotatably connected to the bottom plate (22), the screening shaft (12) is located inside the screening box (21), and a plurality of rotating brush rods ( 13), a soft brush (14) is installed at the lower end of the rotating brush rod (13), a plurality of lifting rods (110) are provided at the bottom end of the screening disc (112), a fixed plate (19) is fixedly installed on the inner wall of the screening box (21), the lifting rod (110) is slidably connected to the fixed plate (19), a spring (18) is provided between the screening disc (112) and the fixed plate (19), a plurality of upper spheres (15) are provided at the bottom of the screening disc (112), a rotating crank (17) is provided on the screening shaft (12) below the screening disc (112), a pair of lower spheres (16) are symmetrically provided at the upper end of the rotating crank (17), the lower spheres (16) are slidably connected to the screening disc (112), and a discharge port (23) is provided on each layer of the cavity of the screening box (21).
2. The coffee bean screening device according to claim 1, characterized in that: The soft brush (14) does not contact the screening disc (112).
3. The coffee bean screening device according to claim 1, characterized in that: The screening disc (112) is provided with screening holes, the diameters of which decrease from top to bottom. The screening disc (112) is rotatably connected to the screening shaft (12).
4. The coffee bean screening device according to claim 1, wherein: The rotating brush rod (13) is a curved rod. When the screening shaft (12) drives the rotating brush rod (13) to rotate, the soft brush (14) at the lower end of the rotating brush rod (13) sweeps the coffee beans so that the coffee beans that fail to pass through the screening holes move to the edge to the discharge port (23).
5. The coffee bean screening device according to claim 1, characterized in that: The spring (18) is sleeved on the lifting rod (110), and the lifting rod (110) passes through the fixed plate (19) and is fixedly installed with a lock seal (111) at one end. No less than three lifting rods (110) are provided.
6. The coffee bean screening device according to claim 1, characterized in that: The diameter of the upper sphere (15) is the same as that of the lower sphere (16); the upper spheres (15) are arranged in a circle around the screening shaft (12) below the screening disc (112); and the distances between the upper sphere (15) and the lower sphere (16) and the screening shaft (12) are the same.
7. The coffee bean screening device according to claim 1, characterized in that: The box body mechanism (2) further comprises a feed box (27) arranged on the top of the screening box (21); support legs (26) are fixedly mounted at the four corners of the bottom plate (22); a movable box door (24) is provided on the screening box (21); and a pair of door handles (25) are provided on the movable box door (24).
8. The coffee bean screening device according to claim 7, characterized in that: The feeding mechanism (4) includes a feeding pipe (42), a feeding motor (41) is provided at the top of the feeding pipe (42), a feeding shaft (44) is provided inside the feeding pipe (42), the feeding motor (41) is connected to the feeding shaft (44) through a coupling, a feeding blade (45) is provided on the feeding shaft (44), a feeding box (43) is provided on the bottom plate (22), the bottom end of the feeding shaft (44) is rotatably connected to the bottom of the feeding box (43), and a loading pipe (46) is provided at the upper end of the feeding pipe (42), and one end of the loading pipe (46) passes through and extends into the feed box (27).
9. The coffee bean screening device according to claim 1, wherein: The dust removal mechanism (3) comprises a dust removal box (31), the upper end of the dust removal box (31) is provided with a dust removal suction pipe (33), the other end of the dust removal suction pipe (33) extends into the screening box (21) and is fixedly installed with a dust removal suction head (34), a dust removal pump (32) is provided on one side of the dust removal box (31), the pump port of the dust removal pump (32) is arranged in the dust removal box (31) and is installed with a filter screen.