Metal impurity removal mechanism for coffee bean pretreatment

Abstract

The utility model discloses a metal impurity removal mechanism for coffee bean pretreatment, and relates to the field of coffee bean production and processing. The metal impurity removing mechanism for coffee bean pretreatment comprises a machine shell, a feeding port, a magnetic core, a first discharging port and a second discharging port, an inner cavity comprises a first cavity body and a second cavity body which are located on the two sides of the magnetic core correspondingly, the first discharging port communicates with the first cavity body, and the second discharging port communicates with the second cavity body; a magnetic attraction piece used for conducting secondary attraction on the metal impurities is arranged in the first cavity, and the magnetic attraction piece is located below the magnetic core and is close to the first discharging opening. According to the metal impurity removing mechanism, the magnetic attraction part can secondarily attract residual metal impurities in coffee beans, so that the metal impurities in the coffee beans can be completely removed, the quality of the pretreated coffee beans is improved, and the quality and safety of finished coffee beans are guaranteed; and in addition, multi-procedure re-impurity removal is not needed in the subsequent process, so that the cost is reduced, and the production and processing efficiency of the coffee beans is improved.

Description

Technical Field

[0001] The present application relates to the field of coffee bean production and processing, and in particular to a metal impurity removal mechanism for coffee bean pretreatment. Background Art

[0002] Coffee beans refer to the fruit of the plant used to make coffee. During the production and processing of coffee beans, they usually need to be pre-treated to remove metal impurities mixed in the coffee beans and improve the quality of the coffee beans.

[0003] In the prior art, metal impurities in coffee beans are generally removed by means of a magnetic separation device. The magnetic separation device includes a housing, a feed port, a magnetic core and a discharge port. Coffee beans are fed into the housing from the feed port at the upper end of the housing. When the coffee beans fall and pass through the magnetic core, metal impurities mixed in the coffee beans can be adsorbed by the magnetic core, while the coffee beans continue to fall and are discharged from the discharge port, thereby achieving the removal of metal impurities.

[0004] However, since coffee beans are continuously fed into the feed port and fall rapidly in the casing, it is inevitable that some metal impurities cannot be absorbed by the magnetic core during the falling process of many coffee beans. Such metal impurities will be discharged from the discharge port along with the coffee beans, which greatly reduces the quality of the pre-treated coffee beans. Moreover, such coffee beans will need to be further cleaned in multiple steps, which not only increases the cost but also reduces the production and processing efficiency of the coffee beans. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the present application provides a metal impurity removal mechanism for coffee bean pretreatment that is capable of further removing metal impurities.

[0006] The present application provides a mechanism for removing metal impurities for coffee bean pretreatment, which adopts the following technical solution:

[0007] A metal impurity removal mechanism for coffee bean pretreatment comprises a casing having an inner cavity, a feed port opened at the upper end of the casing, a magnetic core rotatable in a horizontal direction and arranged in the inner cavity for absorbing metal impurities, a first discharge port opened at the lower end of the casing for outputting coffee beans, and a second discharge port opened at the lower end of the casing for outputting metal impurities, wherein the inner cavity comprises a first cavity and a second cavity respectively located on both sides of the magnetic core, the first discharge port is connected to the first cavity, a magnetic attraction component for secondary adsorption of metal impurities is arranged in the first cavity, and the magnetic attraction component is located below the magnetic core and arranged close to the first discharge port.

[0008] By adopting the above technical solution, the magnetic suction component can perform secondary adsorption of metal impurities remaining in the coffee beans, so that the metal impurities in the coffee beans can be further removed, thereby improving the quality of the pretreated coffee beans and ensuring the quality and safety of the finished coffee beans; and there is no need to carry out multiple steps of impurity removal later, which not only reduces costs but also improves the production and processing efficiency of coffee beans.

[0009] In a specific implementation scheme, the lower end of the first cavity is connected to a first discharge barrel, the first discharge port is opened at the lower end of the first discharge barrel, the first discharge barrel is funnel-shaped, and the magnetic attraction component is arranged in the first discharge barrel.

[0010] In a specific possible implementation manner, the magnetic attraction member includes a magnetic plate, and a first gap is formed between the magnetic plate and the inner wall of the first discharge barrel for the coffee beans to pass through.

[0011] By adopting the above technical solution, not only can the metal impurities in the coffee beans be adsorbed for a second time, but the discharge of the coffee beans will not be affected.

[0012] In a specific possible implementation manner, the magnetic plate is located in the middle of the first discharge cylinder and is rotatable around a horizontal direction.

[0013] By adopting the above technical solution, the rotatable magnetic plate can stir the coffee beans, so that the metal impurities mixed in the coffee beans can escape outward and be adsorbed by the magnetic plate, further improving the effect of removing metal impurities; at the same time, the continuously rotating magnetic plate can also prevent too many coffee beans from remaining on the surface of the magnetic plate and affecting the normal discharge of the coffee beans.

[0014] In a specific possible implementation manner, the magnetic attraction member includes a plurality of magnetic bars arranged at intervals, and a second gap for the coffee beans to pass through is formed between every two adjacent magnetic bars.

[0015] By adopting the above technical solution, not only can the metal impurities in the coffee beans be adsorbed for a second time, but the discharge of the coffee beans will not be affected.

[0016] In a specific possible implementation mode, the magnetic attraction member also includes a rotating shaft rotatable around a vertical direction and arranged in the first discharge barrel, and the multiple magnetic bars are connected to the peripheral side of the rotating shaft and arranged in a circular array around the axis of the rotating shaft.

[0017] By adopting the above technical solution, the multiple rotatable magnetic bars can stir the coffee beans, so that the metal impurities mixed in the coffee beans can escape outward and be adsorbed by the magnetic bars, thereby further improving the removal effect of the metal impurities.

[0018] In a specific feasible implementation scheme, a first baffle plate is connected to the upper cavity wall of the first cavity, and a third gap for coffee beans to pass through is formed between the lower end of the first baffle plate and the magnetic core. A baffle rod is arranged on the side of the first baffle plate, and the baffle rod is rotatably arranged and its rotation axis extends along the horizontal direction. A blocking head is provided at one end of the baffle rod close to the third gap, and the end of the blocking head has an arc-shaped blocking wall, and the blocking wall can block the third gap or detach from the third gap.

[0019] By adopting the above technical solution, the blocking head can control the opening of the third gap during the rotation of the blocking rod, thereby controlling the falling speed of the coffee beans, so as to increase the contact time between the coffee beans and the magnetic core, and between the coffee beans and the magnetic suction part, and further improve the removal effect of metal impurities.

[0020] In a specific implementation scheme, a guide rod is further connected to the upper cavity wall of the first cavity, the guide rod is arc-shaped, and the other end of the material blocking rod is provided with a connecting head, and the connecting head is slidably connected to the guide rod.

[0021] By adopting the above technical solution, the guide rod can guide the rotation of the material blocking rod, thereby preventing the material blocking rod from deviating during the rotation process and affecting the blocking head's control of the opening of the third gap.

[0022] In a specific implementation scheme, a second baffle plate is connected to the upper wall of the second cavity, a scraper is connected to the lower end of the second baffle plate, and the lower end of the scraper contacts the magnetic core;

[0023] The lower end of the second cavity is connected to a second discharge barrel for discharging metal impurities, and the second discharge port is opened at the lower end of the second discharge barrel.

[0024] By adopting the above technical solution, the magnetic core can pass through the scraper during the rotation process, and the scraper can drop the metal impurities adsorbed on the magnetic core, so as to facilitate the collection of the metal impurities.

[0025] In a specific possible implementation mode, the upper end of the casing is connected to a feed barrel, the feed port is opened at the upper end of the feed barrel, a buffer plate is arranged in the feed barrel, and the buffer plate is inclined downward along the horizontal direction.

[0026] By adopting the above technical solution, the buffer plate can buffer the coffee beans input from the feed port, preventing the coffee beans from falling too quickly and affecting the adsorption effect of the magnetic core on metal impurities.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The magnetic suction piece can perform secondary adsorption on the metal impurities remaining in the coffee beans, so that the metal impurities in the coffee beans can be further removed, improving the quality of the pre-treated coffee beans and ensuring the quality and safety of the finished coffee beans;

[0029] 2. There is no need to carry out multiple steps of impurity removal later, which not only reduces costs but also improves the production and processing efficiency of coffee beans. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the metal impurity removal mechanism in Example 1 of the present application.

[0031] Figure 2 It is a structural schematic diagram of the metal impurity removal mechanism in Example 2 of the present application.

[0032] Figure 3 It is a structural schematic diagram of the metal impurity removal mechanism in Example 3 of the present application.

[0033] Description of reference numerals:

[0034] 1. Casing; 2. Inner cavity; 21. First cavity; 22. Second cavity; 3. Feed port; 4. Magnetic core; 5. First discharge port; 6. Second discharge port; 7. Magnetic element; 71. Magnetic plate; 72. Connecting shaft; 73. Magnetic rod; 74. Rotating shaft; 75. Mounting plate; 8. First discharge barrel; 9. First baffle plate; 10. Baffle rod; 101. Blocking head; 102. Blocking wall; 103. Connecting head; 11. Guide rod; 12. Second baffle plate; 13. Scraper; 14. Second discharge barrel; 15. Feed barrel; 16. Buffer plate; 17. Frame. DETAILED DESCRIPTION

[0035] The present application is further described in detail below in conjunction with the accompanying drawings.

[0036] Embodiment 1:

[0037] See also Figure 1 As shown, a metal impurity removal mechanism for coffee bean pretreatment is shown, including a frame 17, a casing 1 with an inner cavity 2 arranged on the frame 17, a feed port 3 opened at the upper end of the casing 1, a magnetic core 4 for absorbing metal impurities and rotatable around a horizontal direction and arranged in the inner cavity 2, a first discharge port 5 opened at the lower end of the casing 1 for outputting coffee beans, and a second discharge port 6 opened at the lower end of the casing 1 for outputting metal impurities. The magnetic core 4 is magnetic and can absorb metal impurities, and is driven to rotate by a motor.

[0038] The inner cavity 2 includes a first cavity 21 and a second cavity 22 respectively located on both sides of the magnetic core 4, the first discharge port 5 is connected to the first cavity 21, and the second discharge port 6 is connected to the second cavity 22. A magnetic suction member 7 for secondary adsorption of metal impurities is provided in the first cavity 21, and the magnetic suction member 7 is located below the magnetic core 4 and close to the first discharge port 5. The magnetic suction member 7 is magnetic and can adsorb metal impurities.

[0039] During use, coffee beans are fed into the inner cavity 2 from the feed port 3. The coffee beans pass through the magnetic core 4 during the falling process. The magnetic core 4 can perform a primary adsorption on the metal impurities in the coffee beans. The coffee beans after the primary adsorption pass through the magnetic suction component 7 during the falling process to the first discharge port 5. The magnetic suction component 7 can perform a secondary adsorption on the metal impurities remaining in the coffee beans, so that the metal impurities in the coffee beans can be further removed, thereby improving the quality of the pretreated coffee beans and ensuring the quality and safety of the finished coffee beans. Furthermore, there is no need to perform multiple steps of impurity removal again subsequently, which not only reduces the cost but also improves the production and processing efficiency of the coffee beans.

[0040] In this embodiment, the lower end of the first cavity 21 is connected to the first discharge barrel 8 , the first discharge port 5 is opened at the lower end of the first discharge barrel 8 , the first discharge barrel 8 is funnel-shaped, and the magnetic attraction component 7 is arranged in the first discharge barrel 8 .

[0041] The magnetic attraction member 7 includes a magnetic plate 71, and a first gap is formed between the magnetic plate 71 and the inner wall of the first discharge barrel 8 for the coffee beans to pass through. The magnetic plate 71 is located in the middle of the first discharge barrel 8 and is rotatable around the horizontal direction. The rotation axis of the magnetic plate 71 is parallel or perpendicular to the rotation axis of the magnetic core 4. A connecting shaft 72 rotatably connected to the inner wall of the first discharge barrel 8 is provided at both ends of the magnetic plate 71. The magnetic plate 71 is driven to rotate by a motor. The rotatable magnetic plate 71 can stir the coffee beans, so that the metal impurities mixed in the coffee beans can escape outward and be adsorbed by the magnetic plate 71, further improving the removal effect of the metal impurities; at the same time, the continuously rotating magnetic plate 71 can also prevent too many coffee beans from remaining on the surface of the magnetic plate 71 and affecting the normal discharge of the coffee beans.

[0042] In this embodiment, a first baffle plate 9 is connected to the upper cavity wall of the first cavity 21. A third gap for coffee beans to pass through is formed between the lower end of the first baffle plate 9 and the magnetic core 4. A baffle rod 10 is arranged on the side of the first baffle plate 9. The baffle rod 10 is rotatably arranged and its rotation axis extends in the horizontal direction. The rotation axis of the baffle rod 10 is parallel to the rotation axis of the magnetic core 4. The baffle rod 10 is driven to rotate by a motor. A blocking head 101 is provided at one end of the baffle rod 10 close to the third gap. The end of the blocking head 101 has an arc-shaped blocking wall 102. The blocking wall 102 can block the third gap or detach from the third gap. The blocking head 101 can control the opening of the third gap during the rotation of the baffle rod 10, thereby controlling the falling speed of the coffee beans, so as to increase the contact time between the coffee beans and the magnetic core 4, and between the coffee beans and the magnetic suction member 7, and further improve the removal effect of metal impurities.

[0043] A guide rod 11 is also connected to the upper wall of the first cavity 21. The guide rod 11 is arc-shaped. A connector 103 is provided at the other end of the stopper rod 10. The connector 103 is slidably connected to the guide rod 11. The guide rod 11 can guide the rotation of the stopper rod 10 to prevent the stopper rod 10 from deviating during the rotation process and affecting the opening control of the third gap by the blocking head 101.

[0044] In this embodiment, a second baffle plate 12 is connected to the upper wall of the second cavity 22, the first baffle plate 9 and the second baffle plate 12 are respectively located on both sides of the feed port 3, a scraper plate 13 is connected to the lower end of the second baffle plate 12, and the lower end of the scraper plate 13 is in contact with the magnetic core 4; the lower end of the second cavity 22 is connected to a second discharge barrel 14 for discharging metal impurities, and the second discharge port 6 is opened at the lower end of the second discharge barrel 14. The magnetic core 4 can pass through the scraper plate 13 during the rotation process, and the scraper plate 13 can scrape the metal impurities adsorbed on the magnetic core 4 toward the second discharge port 6, so as to collect the metal impurities.

[0045] In this embodiment, the upper end of the housing 1 is connected to a feed barrel 15, the feed port 3 is opened at the upper end of the feed barrel 15, and a buffer plate 16 is arranged in the feed barrel 15, and the buffer plate 16 is tilted downward along the horizontal direction. The buffer plate 16 can buffer the coffee beans input from the feed port 3 to prevent the coffee beans from falling too fast and affecting the adsorption effect of the magnetic core 4 on metal impurities.

[0046] Embodiment 2:

[0047] See also Figure 2As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, the magnetic attraction member 7 includes a rotating shaft 74 rotatable around the vertical direction and arranged in the first discharging barrel 8, a plurality of magnetic bars 73 connected to the peripheral side of the rotating shaft 74 and arranged in a ring array around the axis of the rotating shaft 74, and a second gap for coffee beans to pass through is formed between each two adjacent magnetic bars 73. The rotating shaft 74 is driven to rotate by a motor, and a mounting plate 75 is arranged in the first discharging barrel 8, and the rotating shaft 74 is rotatably connected to the mounting plate 75.

[0048] The rotatable multiple magnetic bars 73 can stir the coffee beans, so that the metal impurities mixed in the coffee beans can escape outward and be adsorbed by the magnetic bars 73, further improving the removal effect of the metal impurities.

[0049] Embodiment 3:

[0050] See also Figure 3 As shown, the difference between this embodiment and the embodiments 1 and 2 is that: in this embodiment, the magnetic attraction member 7 includes a first magnetic attraction member and a second magnetic attraction member, the first magnetic attraction member includes a magnetic plate 71, a first gap for the coffee beans to pass through is formed between the magnetic plate 71 and the inner wall of the first discharge barrel 8, and the magnetic plate 71 is located in the middle of the first discharge barrel 8 and is rotatable around the horizontal direction;

[0051] The second magnetic attraction member includes a rotating shaft 74 rotatable in a vertical direction and disposed in the first discharge barrel 8, and a plurality of magnetic rods 73 connected to the peripheral side of the rotating shaft 74 and arranged in a circular array around the axis of the rotating shaft 74, and a second gap for the coffee beans to pass through is formed between every two adjacent magnetic rods 73.

[0052] Among them, the first magnetic attraction component is arranged in the first discharge port 5, and the second magnetic attraction component is arranged in the first discharge barrel 8 and is located above the first magnetic attraction component. In this way, the coffee beans can first be stirred and adsorbed by multiple magnetic bars 73 when approaching the first discharge port 5, and then be rotated and adsorbed by the magnetic plate 71, which can further remove metal impurities and improve the quality of the coffee beans.

[0053] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A metal impurity removal mechanism for coffee bean pretreatment, comprising a housing (1) having an inner cavity (2), a feed port (3) provided at the upper end of the housing (1), a magnetic core (4) rotatable in a horizontal direction and arranged in the inner cavity (2) for absorbing metal impurities, a first discharge port (5) provided at the lower end of the housing (1) for discharging coffee beans, and a second discharge port (6) provided at the lower end of the housing (1) for discharging metal impurities, characterized in that: The inner cavity (2) comprises a first cavity (21) and a second cavity (22) respectively located on both sides of the magnetic core (4); the first discharge port (5) is connected to the first cavity (21); a magnetic attraction component (7) for secondary adsorption of metal impurities is arranged in the first cavity (21); the magnetic attraction component (7) is located below the magnetic core (4) and is arranged close to the first discharge port (5).

2. The metal impurity removal mechanism for coffee bean pretreatment according to claim 1, characterized in that: The lower end of the first cavity (21) is connected to the first discharge barrel (8), the first discharge port (5) is opened at the lower end of the first discharge barrel (8), the first discharge barrel (8) is funnel-shaped, and the magnetic attraction component (7) is arranged in the first discharge barrel (8).

3. The metal impurity removal mechanism for coffee bean pretreatment according to claim 2, characterized in that: The magnetic attraction member (7) comprises a magnetic plate (71), and a first gap is formed between the magnetic plate (71) and the inner wall of the first discharge barrel (8) for the coffee beans to pass through.

4. The metal impurity removal mechanism for coffee bean pretreatment according to claim 3, characterized in that: The magnetic plate (71) is located in the middle of the first discharge cylinder (8) and is rotatable around a horizontal direction.

5. The metal impurity removal mechanism for coffee bean pretreatment according to claim 2, characterized in that: The magnetic attraction member (7) comprises a plurality of magnetic bars (73) arranged at intervals, and a second gap for the coffee beans to pass through is formed between every two adjacent magnetic bars (73).

6. The metal impurity removal mechanism for coffee bean pretreatment according to claim 5, characterized in that: The magnetic attraction member (7) further comprises a rotating shaft (74) which is rotatable in a vertical direction and is arranged in the first discharge barrel (8); the plurality of magnetic rods (73) are connected to the peripheral side of the rotating shaft (74) and are arranged in a circular array around the axis of the rotating shaft (74).

7. A metal impurity removal mechanism for coffee bean pretreatment according to any one of claims 1 to 6, characterized in that: A first baffle plate (9) is connected to the upper cavity wall of the first cavity (21), and a third gap for coffee beans to pass through is formed between the lower end of the first baffle plate (9) and the magnetic core (4). A baffle rod (10) is arranged on the side of the first baffle plate (9), and the baffle rod (10) is rotatably arranged and its rotation axis extends along the horizontal direction. A blocking head (101) is provided at one end of the baffle rod (10) close to the third gap, and the end of the blocking head (101) has an arc-shaped blocking wall (102), and the blocking wall (102) can block the third gap or detach from the third gap.

8. The metal impurity removal mechanism for coffee bean pretreatment according to claim 7, characterized in that: A guide rod (11) is also connected to the upper cavity wall of the first cavity (21), and the guide rod (11) is in an arc shape. The other end of the material blocking rod (10) is provided with a connecting head (103), and the connecting head (103) is slidably connected to the guide rod (11).

9. A metal impurity removal mechanism for coffee bean pretreatment according to any one of claims 1 to 6, characterized in that: A second material baffle plate (12) is connected to the upper cavity wall of the second cavity (22), a scraper plate (13) is connected to the lower end of the second material baffle plate (12), and the lower end of the scraper plate (13) is in contact with the magnetic core (4); The lower end of the second cavity (22) is connected to a second discharge barrel (14) for discharging metal impurities, and the second discharge port (6) is opened at the lower end of the second discharge barrel (14).

10. A metal impurity removal mechanism for coffee bean pretreatment according to any one of claims 1 to 6, characterized in that: The upper end of the casing (1) is connected to a feed barrel (15), the feed port (3) is opened at the upper end of the feed barrel (15), a buffer plate (16) is arranged in the feed barrel (15), and the buffer plate (16) is inclined downward along the horizontal direction.

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