Coffee bean huller
By designing a coffee bean shelling machine using sieve barrels and impact sheets, the problem of easy crushing of coffee bean kernels in existing equipment is solved, and high-quality coffee bean kernels are realized.
Patent Information
- Application Number
- CN202421344505.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-13
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-06-13
AI Technical Summary
The existing coffee bean shelling equipment can easily crush the coffee bean kernels, resulting in a decrease in the quality of the coffee bean kernels.
A coffee bean shelling machine is designed, using a combined structure of a screen cylinder and an impact sheet. The impact of the impact sheet makes the coffee bean shell broken, without being crushed through the roller to prevent the coffee bean kernel from being damaged. At the same time, the coffee bean shell is sucked out by a fan and the coffee bean kernels are separated through the blanking barrel.
It effectively avoids the coffee bean kernel being crushed during the shelling process, ensures the quality of the coffee bean kernel, and further sorts through sifting, improving the purity and sorting efficiency of the coffee bean kernel.
Smart Images
Figure CN222548521U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of food machinery, in particular to a coffee bean shelling machine. Background Art
[0002] Coffee is a common drink, and its raw material is coffee beans. After being picked from coffee trees, coffee cherries go through processes such as peeling and drying to become shelled coffee beans. Shelled coffee beans need to be dehulled in shelling equipment to form coffee bean kernels for coffee production.
[0003] The current shelling equipment uses rollers to crush the shells of shelled coffee beans. This method can easily crush the coffee bean kernels in the shells, thereby reducing the quality of the coffee bean kernels. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a coffee bean shelling machine, which is used to solve the problem that the current coffee bean shelling equipment easily crushes the coffee bean kernels and reduces the quality of the coffee bean kernels.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0006] A coffee bean shelling machine comprises a frame, a shelling unit arranged on the top of the frame, a fan connected to one side of the shelling unit and a blanking drum connected to the bottom of the shelling unit; the shelling unit comprises a box body fixedly connected to the frame and a cylindrical screen drum rotatably connected in the box body with a horizontal axis, the inner side of the screen drum is provided with impact plates distributed along the circumferential direction, the screen drum is provided with screen holes beside the impact plates, the box body is provided with a feed port at a position corresponding to the inside of the screen drum, a feed hopper is fixedly provided outside the box body at the position of the feed port, the air inlet of the fan is connected to the inside of the box body, the blanking drum is vertically arranged, the upper end of the blanking drum is connected to the bottom of the box body, and a second motor for driving the screen drum to rotate and / or the fan is fixedly connected to the frame.
[0007] Furthermore, a shaking screen is provided at the lower part of the frame, and the shaking screen includes a screen body suspended in the frame, a trumpet-shaped screen fixedly arranged on the large radial direction in the screen body, and an inclined rod arranged on the screen body; the blanking barrel is located above the screen, and the lower end of the inclined rod is fixedly connected to the outer edge of the screen body, the screen body is a cylindrical shape with a bottom plugged, and the screen is located in the middle of the screen body, and a second discharge port and a third discharge port are opened on the outer wall of the screen body, the second discharge port is lower than the screen, and the third discharge port is higher than the screen, the screen body is fixedly connected with a second discharge hopper at the position of the second discharge port, and the screen body is fixedly connected with a third discharge hopper at the position of the third discharge port, and a first discharge port is opened in the center of the screen, and a short tube is fixedly arranged on the screen in the first discharge port, the short tube passes through and is fixedly connected to the bottom of the screen body, and the bottom of the screen body is fixedly connected with the first discharge hopper at the position of the short tube.
[0008] Furthermore, there are at least two inclined tie rods distributed along the circumferential direction of the screen body, the top ends of the inclined tie rods are fixed to each other, and a universal joint is connected between the top ends of the inclined tie rods and the frame.
[0009] Furthermore, a tie rod is radially arranged on the top of the screen body, a bearing seat is arranged at the center of the top of the screen body, the screen body and the bearing seat are respectively fixedly connected to the corresponding end of the tie rod, and a power mechanism for driving the bearing seat to shake is also arranged on the frame.
[0010] Furthermore, the power mechanism includes a crossbeam arranged above the screen body and fixedly connected to the frame, a bearing box is fixedly arranged on the crossbeam, a vertical swing shaft is arranged in the bearing box, the upper axis and the lower axis of the swing shaft are staggered, the upper part of the swing shaft is rotatably connected to the bearing box, the lower part of the swing shaft is rotatably connected to the bearing seat, and a first motor is fixedly connected to the crossbeam and is transmission-connected to the upper part of the swing shaft.
[0011] Furthermore, the impact piece is in a fish scale shape, the sieve hole and the impact piece are formed at one time by stamping, and the orientation of the impact piece is consistent.
[0012] Furthermore, the fan and the screen drum are both driven by a second motor belt.
[0013] Furthermore, spokes are fixedly connected radially inside the sieve cylinder, a hub is fixedly connected to the inner end of the spokes, a rotating shaft is fixedly connected to the center of the hub, the rotating shaft is rotatably connected to the casing, the second motor is transmission-connected to the rotating shaft, annular end rings are fixedly connected on both sides of the sieve cylinder, the end rings are close to the inner wall of the casing, and the feed port corresponds to the position of the inner hole of the end ring.
[0014] Furthermore, a movable tube is nested in the short tube, an intermediate plate is fixedly connected in the movable tube, a vertical screw is passed through and fixedly connected to the intermediate plate, a handwheel is fixedly connected to the top of the screw, and a fixed plate is fixedly connected to the bottom of the screen body, the screw is threadedly connected to the fixed plate, and both the intermediate plate and the fixed plate are provided with holes for allowing materials entering the movable tube to pass through.
[0015] The positive effects of the utility model are:
[0016] 1. The utility model is provided with a frame, on which a shelling unit and a fan are provided, the shelling unit comprises a box body and a screen cylinder rotatably connected in the box body, the screen cylinder is provided with screen holes and fish scale-shaped impact pieces, the box body is also connected with a feed hopper and a drop barrel, coffee beans are fed into the drop barrel through the feed hopper, and then under the action of the impact piece, the coffee beans are broken into coffee bean kernels and coffee bean shells, under the action of the fan, the coffee bean shells are sucked out, and the coffee bean kernels fall from the drop barrel under the action of gravity, thereby realizing the shelling of the coffee beans. Since the shells of the coffee beans are broken by the impact of the impact piece, they are no longer crushed by the roller, so that the coffee bean kernels inside the shell can be prevented from being squeezed and broken, thereby ensuring the quality of the coffee bean kernels.
[0017] 2. The utility model is also provided with a shaking screen, which is provided with a screen cylinder and a screen mesh, and the screen cylinder is provided with a first discharge hopper, a second discharge hopper and a third discharge hopper, and the coffee bean kernels, shelled coffee beans and coffee bean shell debris falling from the discharge cylinder fall together onto the screen mesh. The screen body shakes, and the coffee bean kernels with a larger specific gravity are discharged through the first discharge hopper, and the unshelled coffee beans with a smaller specific gravity are discharged from the third discharge hopper, so that the coffee bean kernels, unshelled coffee beans and coffee bean shell debris can be separated, thereby improving the efficiency of coffee bean kernel sorting and making the coffee bean kernels more pure. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a side view of the utility model;
[0019] Figure 2 yes Figure 1 Cross-sectional view of the middle AA part;
[0020] Figure 3 It is a schematic diagram of the structure of the shelling unit;
[0021] Figure 4 yes Figure 3 Cross-sectional view of the middle BB area;
[0022] Figure 5 yes Figure 4 A partial enlarged view of the middle II part;
[0023] Figure 6 yes Figure 1 A partial enlarged view of the middle I part;
[0024] Figure 7 It is a schematic diagram of the structure of the shaking screen;
[0025] Figure 8 yes Figure 6 A partial enlarged view of the middle III;
[0026] In the figure:
[0027] 1. Screen body; 2. First motor; 3. Bearing box; 4. Swing shaft; 5. Diagonal tie rod; 6. Universal joint; 7. Second motor; 8. Fan; 9. Air duct; 10. Shelling unit; 11. Magnetic separation cylinder; 12. Feed hopper; 13. Frame; 14. Screen cylinder; 15. Rotating shaft; 16. Dropping cylinder; 17. Spoke; 18. Hub; 19. End ring; 20. Box; 21. Feed inlet; 22. Shelling cavity; 23. Bearing seat; 24. Tie rod; 25. First discharge hopper; 26. Screen; 27. Second discharge hopper; 28. Third discharge hopper; 29. Screen hole; 30. Impact plate; 31. Short tube; 32. Movable tube; 33. Screw; 34. Fixed plate; 35. Middle plate; 36. Handwheel. DETAILED DESCRIPTION
[0028] Example 1
[0029] like Figures 1 to 6 As shown, a coffee bean shelling machine includes a frame 13 welded from profiles, a shelling unit 10 arranged on the left side of the top of the frame 13, a fan 8 connected to the right side of the shelling unit 10, and a blanking barrel 16 with a rectangular cross-section connected to the bottom of the shelling unit 10.
[0030] The shelling unit 10 includes a box body 20 fixedly connected to a frame 13 and a cylindrical screen drum 14 rotatably connected in the box body 20 and having a horizontal axis. Impact plates 30 are distributed along the circumferential direction on the inner side of the screen drum 14. The impact plates 30 are evenly distributed along the circumferential direction and radial direction of the screen drum 14. The screen drum 14 is provided with screen holes 29 on the side of each impact plate 30. The box body 20 is provided with a feed port 21 at a position corresponding to the inside of the screen drum 14. A feed hopper 12 is fixedly provided outside the box body 20 at the position of the feed port 21. A magnetic separation drum 11 is installed on the top of the feed hopper 12 to prevent ferromagnetic impurities mixed in the coffee bean raw materials from entering the box body 20.
[0031] The impact piece 30 is in a fish scale shape, the sieve hole 29 and the adjacent impact piece 30 are formed at one time by stamping and bending, and the impact piece 30 has the same orientation.
[0032] Two spokes 17 spaced 180 degrees apart are fixedly connected radially in the screen drum 14, a hub 18 is fixedly connected to the inner end of the spoke 17, a rotating shaft 15 is fixedly connected to the center of the hub 18 by screws, the rotating shaft 15 is connected to the box body 20 for rotation, annular end rings 19 are fixedly connected to both sides of the screen drum 14, the outer side of the end ring 19 is close to the inner wall of the side of the box body 20, and the feed port 21 corresponds to the inner hole position of the end ring 19. The fan 8 and the rotating shaft 15 are both driven by the second motor 7 with a belt.
[0033] The right end of the box 20 is open, and a horizontal air duct 9 is connected to the right end of the box 20. The air duct 9 is connected to the air inlet of the fan 8, so that the shelling chamber 22 inside the box 20 is connected to the fan 8. The blanking barrel 16 is vertically arranged. The bottom of the box 20 is inclined from the upper left to the lower right, and the upper end of the blanking barrel 16 is connected to the left end of the bottom of the air duct 9. The frame 13 is fixedly connected to a second motor 7 for driving the screen drum 14 and the fan 8 to rotate.
[0034] The working process of the utility model is:
[0035] The second motor 7 drives the fan 8 to operate and the screen drum 14 to rotate at the same time ( Figure 4 The middle screen drum 14 rotates clockwise), and the shelled coffee bean raw material is added to the feed hopper 12 through the magnetic separation drum 11. The coffee bean raw material falls onto the inner wall of the screen drum 14 through the inner hole of the end ring 19, and collides with the fish-scale impact piece 30, and the coffee bean raw material is broken into coffee bean kernels with a larger specific gravity and coffee bean shells with a smaller specific gravity. Under the action of the fan 8, wind enters the shelling chamber 22, and the coffee bean shells with a smaller specific gravity and the light impurities in the coffee bean raw material are sucked into the air duct 9 by the fan 8 under the action of wind force, and then discharged from the air outlet of the fan 8. The coffee bean kernels with a larger specific gravity pass through the screen hole 29 and fall into the box body 20, and then fall into the blanking drum 16 through the inclined surface at the bottom of the box body 20, and then are discharged downward.
[0036] Since the shells of the coffee beans are broken by the impact of the impact piece and are no longer crushed by the roller, the coffee bean kernels inside the shells can be prevented from being squeezed and broken, thus ensuring the quality of the coffee bean kernels.
[0037] Example 2
[0038] Combination Figure 7 and Figure 8 As shown, the difference between this embodiment and embodiment 1 is that:
[0039] A shaking screen is provided at the lower part of the frame 13, and the shaking screen includes a screen body 1 suspended in the frame 13, a trumpet-shaped screen mesh 26 fixedly arranged in the large radial direction in the screen body 1, and a diagonal tie rod 5 arranged on the screen body 1. The blanking barrel 16 is located above the edge of the screen mesh 26, and the diagonal tie rods 5 are four distributed along the circumferential direction of the screen body 1. The top ends of the diagonal tie rods 5 are fixed to each other, and a universal joint 6 is connected between the top end of the diagonal tie rod 5 and the frame 13, and the universal joint 6 is located on the center line of the screen body 1. A rubber pad for shock absorption is provided between the universal joint 6 and the diagonal tie rod 5.
[0040] The lower end of the inclined tie rod 5 is fixedly connected to the outer edge of the screen body 1. The screen body 1 is a cylindrical shape with a blocked bottom. The screen 26 is located in the middle of the screen body 1. A second discharge port and a third discharge port are provided on the outer wall of the screen body 1. The second discharge port is lower than the screen 26, and the third discharge port is higher than the screen 26. The screen body 1 is fixedly connected with a second discharge hopper 27 at the position of the second discharge port, and the screen body 1 is fixedly connected with a third discharge hopper 28 at the position of the third discharge port. A first discharge port is provided in the center of the screen 26, and a short tube 31 is fixedly arranged in the first discharge port below the screen 26. The short tube 31 passes through and is fixedly connected to the bottom of the screen body 1, and the bottom of the screen body 1 is fixedly connected with a first discharge hopper 25 at the position of the short tube 31.
[0041] A tie rod 24 is radially arranged on the top of the screen body 1, and the tie rods 24 are three evenly distributed in the circumferential direction. A bearing seat 23 is arranged at the center of the top of the screen body 1. The screen body 1 and the bearing seat 23 are respectively fixedly connected to one end corresponding to the tie rod 24, and a power mechanism for driving the bearing seat 23 to shake is also arranged on the frame 13.
[0042] In addition to coffee bean kernels, some shelled coffee beans and some coffee bean shell debris fall from the drop barrel 16, and the mixture of these materials falls onto the screen 26. The power mechanism drives the screen body 1 and the screen 26 to shake together, and the coffee bean shell debris and some fine particles of impurities fall downward after passing through the screen 26. Under the shaking action of the screen body 1, they gather at the edge of the inner wall of the screen body 1, and then are discharged from the second discharge hopper 27. The coffee bean kernels with a larger specific gravity fall into the first discharge hopper 25 through the first discharge port in the center of the screen 26 and are then discharged. Since the unshelled coffee beans have a smaller specific gravity, they gather around the screen 26 under the shaking of the screen 26, and then are discharged from the third discharge hopper 28. The unshelled coffee beans can be shelled again.
[0043] Therefore, the shaking screen can separate the coffee bean kernels, unshelled coffee beans and coffee bean shell fragments, thereby improving the efficiency of coffee bean kernel sorting and making the coffee bean kernels higher in purity.
[0044] Example 3
[0045] The difference between this embodiment and embodiment 2 is that:
[0046] The power mechanism includes a crossbeam arranged above the screen body 1 and fixedly connected to the frame 13, and the crossbeam passes between four inclined tie rods 5. A vertical bearing box 3 is fixedly arranged on the crossbeam, and a vertical swing shaft 4 is arranged in the bearing box 3. The axis of the upper part of the swing shaft 4 is parallel to the axis of the lower part and staggered in the horizontal direction. The upper part of the swing shaft 4 is rotatably connected to the bearing box 3, and the lower part of the swing shaft 4 is rotatably connected to the bearing seat 23. The first motor 2 connected to the upper part of the swing shaft 4 through a belt drive is fixedly connected to the crossbeam.
[0047] When the first motor 2 rotates, it drives the upper part of the swing shaft 4 to rotate. Since the upper and lower axes of the swing shaft 4 are staggered, and the bearing box 3 rotatably connected to the upper part of the swing shaft 4 is fixedly connected to the frame 13, the lower part of the swing shaft 4 will rotate around the upper part of the swing shaft 4, thereby driving the bearing seat 23, the screen body 1 and the screen mesh 26 to shake along a circular trajectory in the horizontal plane with the upper part of the swing shaft 4 as the center. The universal joint 6 can compensate for the change in the horizontal position of the screen body 1 while bearing the weight of the shaking screen.
[0048] Example 4
[0049] Combination Figure 8 As shown, the difference between this embodiment and embodiment 3 is that:
[0050] The short tube 31 is embedded with a movable tube 32, a circular middle plate 35 is fixedly connected in the movable tube 32, a vertical lead screw 33 is fixedly connected through the middle plate 35, a circular fixed plate 34 is welded to the bottom of the sieve body 1, the lead screw 33 is threadedly connected to the fixed plate 34, the middle plate 35 and the fixed plate 34 are both provided with holes for coffee beans entering the movable tube 32 to pass through, and a hand wheel 36 is fixedly connected to the top of the lead screw 33. The lead screw 33 is screwed with two nuts on the upper and lower sides of the middle plate 35, and the lead screw 33 is fixedly connected to the middle plate 35 through the nuts. A nut is welded at the center of the fixed plate 34, and the lead screw 33 is threadedly connected to the fixed plate 34 through the nut.
[0051] When the hand wheel 36 is turned, the lead screw 33 is driven to rotate, and the lead screw 33 drives the middle plate 35 and the movable tube 32 to move up and down while rotating, so that the height of the movable tube 32 protruding from the screen 26 can be adjusted, and then the thickness of the material on the screen 26 can be adjusted.
[0052] The above-mentioned embodiments describe content in a relatively detailed and specific manner, and express the preferred embodiments of the present utility model. They are only used to illustrate the technical ideas and features of the present utility model, and their purpose is to enable technicians in this field to understand the content of the present utility model and implement it accordingly, but they are not limited to the present utility model. The patent scope of the present utility model cannot be limited only by this embodiment, that is, any equivalent changes or modifications made to the spirit disclosed by the present utility model, for researchers or technicians in this field, without departing from the structure of the present utility model, local improvements within the system and changes and conversions between subsystems, etc., are still within the patent scope of the present utility model.
Claims
1. A coffee bean shelling machine, characterized in that: The invention comprises a frame (13), a shelling unit (10) arranged on the top of the frame (13), a fan (8) connected to one side of the shelling unit (10), and a blanking drum (16) connected to the bottom of the shelling unit (10); the shelling unit (10) comprises a box body (20) fixedly connected to the frame (13) and a cylindrical screen drum (14) rotatably connected in the box body (20) and having a horizontal axis; the inner side of the screen drum (14) is provided with impact plates (30) distributed along the circumferential direction; the screen drum (14) is provided with a The box (20) has a sieve hole (29), a feed port (21) is provided at a position corresponding to the inside of the sieve drum (14), a feed hopper (12) is fixedly provided outside the box (20) at the position where the feed port (21) is located, an air inlet of the fan (8) is connected to the inside of the box (20), the blanking drum (16) is vertically arranged, the upper end of the blanking drum (16) is connected to the bottom of the box (20), and a second motor (7) for driving the sieve drum (14) to rotate and / or the fan (8) to rotate is fixedly connected to the frame (13).
2. A coffee bean shelling machine according to claim 1, characterized in that: A shaking screen is provided at the lower part of the frame (13), and the shaking screen comprises a screen body (1) suspended in the frame (13), a trumpet-shaped screen (26) fixedly arranged in the large radial direction in the screen body (1), and an inclined rod (5) arranged on the top of the screen body (1); the blanking barrel (16) is located above the screen (26), the lower end of the inclined rod (5) is fixedly connected to the outer edge of the screen body (1), the screen body (1) is a cylindrical shape with a blocked bottom, the screen (26) is located in the middle of the screen body (1), and a second discharge port and a third discharge port are provided on the outer wall of the screen body (1), and the second discharge port and the third discharge port are provided on the outer wall of the screen body (1). The discharge port is lower than the screen (26), the third discharge port is higher than the screen (26), the screen body (1) is fixedly connected to a second discharge hopper (27) at the location of the second discharge port, the screen body (1) is fixedly connected to a third discharge hopper (28) at the location of the third discharge port, a first discharge port is opened at the center of the screen (26), a short tube (31) is fixedly arranged in the first discharge port of the screen (26), the short tube (31) is passed through and fixedly connected to the bottom of the screen body (1), and the bottom of the screen body (1) is fixedly connected to the first discharge hopper (25) at the location of the short tube (31).
3. A coffee bean shelling machine according to claim 2, characterized in that: The inclined rods (5) are at least two and are distributed along the circumferential direction of the screen body (1). The top ends of the inclined rods (5) are fixed to each other, and a universal joint (6) is connected between the top ends of the inclined rods (5) and the frame (13).
4. The coffee bean shelling machine according to claim 2, characterized in that: A tie rod (24) is radially arranged on the top of the screen body (1), a bearing seat (23) is arranged at the center of the top of the screen body (1), the screen body (1) and the bearing seat (23) are respectively fixedly connected to one end corresponding to the tie rod (24), and the frame (13) is also provided with a power mechanism for driving the bearing seat (23) to shake.
5. The coffee bean shelling machine according to claim 4, characterized in that: The power mechanism comprises a crossbeam arranged above the screen body (1) and fixedly connected to the frame (13); a bearing box (3) is fixedly arranged on the crossbeam; a vertical swing shaft (4) is arranged in the bearing box (3); the axis of the upper part of the swing shaft (4) and the axis of the lower part are staggered; the upper part of the swing shaft (4) is rotatably connected to the bearing box (3); the lower part of the swing shaft (4) is rotatably connected to the bearing seat (23); and a first motor (2) is fixedly connected to the crossbeam and is transmission-connected to the upper part of the swing shaft (4).
6. The coffee bean shelling machine according to claim 1, characterized in that: The impact piece (30) is in the shape of a fish scale, the sieve hole (29) and the impact piece (30) are formed at one time by stamping, and the impact piece (30) has the same orientation.
7. The coffee bean shelling machine according to claim 1, characterized in that: The fan (8) and the screen drum (14) are both belt-driven with the second motor (7).
8. The coffee bean shelling machine according to claim 1, characterized in that: The sieve drum (14) is radially fixedly connected with a spoke (17), the inner end of the spoke (17) is fixedly connected with a hub (18), the center of the hub (18) is fixedly connected with a rotating shaft (15), the rotating shaft (15) is rotatably connected to the casing (20), the second motor (7) is transmission-connected with the rotating shaft (15), both sides of the sieve drum (14) are fixedly connected with annular end rings (19), the end rings (19) are close to the inner wall of the casing (20), and the feed port (21) corresponds to the position of the inner hole of the end ring (19).
9. The coffee bean shelling machine according to claim 2, characterized in that: A movable tube (32) is nested in the short tube (31), an intermediate plate (35) is fixedly connected to the movable tube (32), a vertical lead screw (33) is passed through and fixedly connected to the intermediate plate (35), a hand wheel (36) is fixedly connected to the top of the lead screw (33), a fixed plate (34) is fixedly connected to the bottom of the screen body (1), the lead screw (33) is threadedly connected to the fixed plate (34), and holes are provided on the intermediate plate (35) and the fixed plate (34) for allowing materials entering the movable tube (32) to pass through.