Coffee husking machine and method

Abstract

The invention provides a coffee husking machine and method. The coffee husking machine comprises a bottom frame, an outer cover is installed above the bottom frame, a husking box is arranged in the outer cover, and a separation box is arranged in the bottom frame and located below the husking box; a feeding hopper is arranged on the outer side of the outer cover, a feeding pipe used for connecting the feeding hopper and the husking box is arranged in the outer cover, a rolling motor is arranged above the husking box, a rotating disc in transmission connection with the rolling motor is arranged in the husking box, and a rolling disc is movably connected to the center of the lower surface of the rotating disc through a connecting rod; coffee beans can be rolled and stirred in all directions through the rolling disc and the stirring disc, it is ensured that each coffee bean can be evenly stressed, when the rolling disc obliquely extrudes the lower coffee beans, the lower coffee beans can adapt to the fluctuating rhythm of the rolling disc, the situation that the coffee beans are broken due to too large local stress in the shelling process is avoided, and the service life of the coffee beans is prolonged. The completeness and the shelling efficiency of the coffee beans are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coffee production, and in particular relates to a coffee shelling machine and a method. Background Art Coffee is a beverage made from roasted coffee beans. It is one of the main beverages popular in the world, along with cocoa and tea. The coffee tree is an evergreen small tree belonging to the Rubiaceae family. The coffee we drink daily is made from coffee beans and various cooking utensils, and coffee beans refer to the kernels inside the fruit of the coffee tree, which are then roasted using appropriate methods. Coffee beans are made from freshly picked coffee fruits that are spread on the drying yard for a week or two until the fruit makes a crackling sound, and then dried naturally. After that, the dried pulp, endocarp and silverskin are removed with a shelling machine to obtain coffee beans.

[0002] However, when the existing coffee shelling machine shells coffee berries, the shelling effect is inevitably affected due to the different sizes of coffee beans, resulting in some coffee beans being broken or the shells remaining, which affects the shelling quality of the coffee beans. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a coffee shelling machine and method, and the technical solutions adopted are as follows: A coffee shelling machine and method, comprising a base frame, an outer cover is installed above the base frame, a shelling box is arranged inside the outer cover, a separation box is arranged inside the base frame and below the shelling box; a feeding hopper is arranged outside the outer cover, a feeding pipe for connecting the feeding hopper and the shelling box is arranged inside the outer cover, a rolling motor is arranged above the shelling box, a rotating disk drivingly connected to the rolling motor is arranged inside the shelling box, a rolling disk is movably connected to the center position of the lower surface of the rotating disk through a connecting rod, and a pressing plate extending downward to contact the upper surface of the rolling disk is arranged on the lower surface of the rotating disk and located on one side of the connecting rod; A stirring motor is installed at the upper end of the separation box through a supporting frame, a stirring disk is transmission-connected to the upper end of the stirring motor, and a material discharge chute is provided in the middle of the stirring disk; a shell discharge pipe is provided on one side of the lower end of the separation box, and a bellows is provided on the other side of the separation box corresponding to the shell discharge pipe.

[0004] Furthermore, the lower end of the connecting rod is a circular connecting head, and an arc-shaped connecting groove is provided in the center of the rolling disk; further, the upper surface of the rolling disk is an undulating circular structure, and when the pressing plate rotates, the rolling disk can swing in a circle with the connecting head at the lower end of the connecting rod as the center of the circle, thereby pressing the coffee beans below and causing the coffee beans that fall on the top of the rolling disk to slide off.

[0005] Furthermore, a plurality of slots are provided on the outer side of the crushing disc, and blocks corresponding to the slots are provided on the inner wall of the shelling box. When the turntable drives the pressure plate to rotate, the crushing disc below will remain fixed under the action of the blocks and will not rotate with it.

[0006] Furthermore, a plurality of convex rods are provided above the stirring disk, and a feed trough is provided between each adjacent convex rod. When the convex rods rotate, they can scrape the coffee beans above the stirring disk, so that the coffee beans are evenly dispersed and tumbled, thereby improving the shelling efficiency.

[0007] Furthermore, the edge of the upper surface of the stirring disk is provided with an upwardly tilted rib, which can make the coffee beans above the stirring disk gather toward the center during rotation, so that the crushed coffee beans fall from the discharge chute at the center.

[0008] Furthermore, an inner filter is provided on one side of the bellows close to the base frame, an outer filter is provided on the other side of the bellows, and a fan is provided between the two filters. The operation of the fan can generate airflow to blow the broken shells falling from the separation box to the opposite outer shell discharge pipe.

[0009] Furthermore, a shield is provided above the support frame and outside the stirring motor, and the shield protects the stirring motor and prevents debris from entering the motor, and also prevents coffee beans from getting stuck above the support frame.

[0010] A method for using a coffee shelling machine comprises the following steps: S1. First start the rolling motor, stirring motor and fan to ensure that all components operate normally; S2, adding the dried coffee beans into the shelling box from the feeding hopper; S3, the coffee beans falling on the stirring plate will be repeatedly rolled and squeezed under the stirring of the convex rod and the pressing of the rolling plate, thereby completing the shell breaking process; S4. The shelled coffee beans are discharged through the discharge chute, and the broken shells and impurities are blown to the shell discharge pipe by the fan.

[0011] In step S2, the added coffee beans will fall onto the top of the stirring plate under the action of gravity, and some coffee beans will fall onto the top of the grinding plate. However, as the pressing plate rotates, the grinding plate will rise and fall, causing the coffee beans to roll from the inclined grinding plate onto the stirring plate.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The present invention can perform all-round crushing and stirring of the coffee beans through the reciprocating crushing plate and the stirring plate, ensuring that each coffee bean is evenly stressed, and the distance between the crushing plate and the stirring plate provides sufficient tumbling space for the coffee beans. When the crushing plate is tilted to squeeze the coffee beans below, the coffee beans below can adapt to the ups and downs of the crushing plate, avoiding the coffee beans from being broken due to excessive local stress during the shelling process, thereby improving the integrity of the coffee beans and the shelling efficiency.

[0013] The present invention can effectively discharge broken shells and impurities through the shell discharge pipe and the bellows arranged at the lower end of the separation box, thereby ensuring the purity of the coffee beans after shelling and improving the overall processing quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the exploded structure of the base frame and the outer cover of the present invention; Figure 4 It is a schematic diagram of the connection between the shelling box and the separation box of the present invention; Figure 5 It is a schematic diagram of the installation structure of the housing discharge pipe and the bellows of the present invention; Figure 6 It is a schematic diagram of the internal structure of the bellows of the present invention; Figure 7 It is a schematic diagram of the connection structure between the pressing plate and the rolling disc of the present invention; Figure 8 It is a structural schematic diagram of the rolling disc of the present invention; Fig. 9 It is a structural schematic diagram of the support frame of the present invention; Fig.10 The present invention Figure 2 A schematic diagram of the structure enlargement in the middle; Fig.11 The present invention Figure 5 Enlarged schematic diagram of the structure at point B in the middle.

[0015] In the figure: 1-base frame, 2-outer cover, 21-feeding hopper, 3-shelling box, 31-feeding pipe, 32-rolling motor, 33-turntable, 34-pressing plate, 35-connecting rod, 36-rolling disk, 37-slot, 38-block, 4-separation box, 41-support frame, 42-blocking cover, 43-stirring motor, 44-stirring disk, 45-convex rod, 46-discharge chute, 5-shell discharge pipe, 6-bellows box, 61-inner filter, 62-fan, 63-outer filter. DETAILED DESCRIPTION

[0016] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only embodiments of a part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0017] As attached Figure 1-11 shown.

[0018] A coffee shelling machine and method, comprising a base frame 1, an outer cover 2 is installed on the top of the base frame 1 by bolts, a shelling box 3 is arranged inside the outer cover 2, a separation box 4 is arranged inside the base frame 1, and the shelling box 3 and the separation box 4 are connected by bolts.

[0019] The upper end of the separation box 4 is provided with a side plate protruding outward, which contacts the upper surface of the base frame 1 to support the separation box 4. The above structure realizes the combined installation of the device, which is convenient for disassembling and separating the device when the inside of the device needs to be repaired.

[0020] An arc-shaped feeding hopper 21 is provided on the outside of the outer cover 2, and a feeding pipe 31 for connecting the feeding hopper 21 and the inside of the shelling box 3 is provided inside the outer cover 2, and the coffee beans to be processed can be put into the shelling box 3 through the feeding hopper 21 and the feeding pipe 31; a rolling motor 32 is provided above the shelling box 3, and a turntable 33 connected to the rolling motor 32 is provided inside the shelling box 3, a connecting rod 35 is movably connected to the center position of the lower surface of the turntable 33, and a rolling disc 36 is movably connected to the lower end of the connecting rod 35.

[0021] The lower end of the connecting rod 35 is a circular connector, and an arc-shaped connecting groove is provided in the center of the rolling plate 36. Figure 7 , 8 As shown, the upper surface of the grinding disk 36 is a high and low cyclic structure, and a downward extending pressure plate 34 is provided on the outer edge of the lower surface of the turntable 33. Driven by the turntable 33, the lower end of the pressure plate 34 will rotate along the upper surface of the grinding disk 36, and a plurality of slots 37 are provided on the outer side of the grinding disk 36, and a block 38 corresponding to the slot 37 is provided on the inner wall of the shelling box 3. When the turntable 33 drives the pressure plate 34 to rotate, the lower grinding disk 36 will remain fixed under the action of the block 38 and will not rotate with it. Under the pressure of the pressure plate 34, the grinding disk 36 will perform a high and low cyclic undulating action, thereby pressing the coffee beans between the grinding disk 36 and the stirring disk 44, thereby effectively breaking the shells of the coffee beans.

[0022] A stirring motor 43 is installed at the upper end of the separation box 4 through a support frame 41, and a stirring disc 44 is connected to the upper end of the stirring motor 43. Fig.10 As shown, an upwardly tilted rib is provided on the edge of the upper surface of the stirring disk 44, so that the coffee beans above the stirring disk 44 can be effectively pushed to the center position during rotation.

[0023] A plurality of protruding rods 45 are provided above the stirring disk 44, which can scrape the coffee beans above the stirring disk when rotating, so that the coffee beans are evenly dispersed and tumbled, and cooperate with the rolling disk 36 running above, so that the coffee beans can be shelled without being broken.

[0024] A plurality of feed chutes 46 are provided in the middle of the stirring plate 44, through which the shelled coffee beans can be smoothly discharged, thereby ensuring the high efficiency and continuity of the coffee bean processing flow. Meanwhile, by providing a bellows 6 and a shell discharge pipe 5 at the lower end of the separation box 4, the shells and impurities generated during the processing can be separated.

[0025] An inner filter screen 61 is provided on one side of the bellows 6 close to the base frame 1, an outer filter screen 63 is provided on the other side of the bellows 6, and a fan 62 is provided between the two filter screens. The filter screens on both sides are provided to block debris, and the operation of the fan 62 can generate airflow to blow the broken shells falling from the separation box 4 to the shell discharge pipe 5 opposite.

[0026] A shield 42 is provided above the support frame 41 and outside the stirring motor 43 , and the shield 42 protects the stirring motor 43 and prevents foreign matter from entering the motor.

[0027] The method of using this device is as follows: 1. First, start the rolling motor 32, the stirring motor 43 and the fan 62 to ensure that all components operate normally.

[0028] 2. Add the dried coffee beans from the hopper 21 into the shelling box 3. The coffee beans fall onto the top of the stirring plate 44 under the action of gravity. Some of the coffee beans will fall onto the top of the rolling plate 36. However, as the pressing plate 34 rotates, the rolling plate 36 will fluctuate, causing the coffee beans to roll from the top of the inclined rolling plate 36 to the stirring plate 44.

[0029] 3. The coffee beans falling on the stirring plate 44 will be repeatedly rolled and squeezed under the stirring of the protruding rods 45 and the pressing of the rolling plate 36, thereby completing the shell breaking process.

[0030] 4. The shelled coffee beans are discharged through the discharge chute 46, and the broken shells and impurities are blown to the shell discharge pipe 5 by the fan 62.

[0031] In the above process, coffee beans can be continuously added to the hopper 21 to achieve continuous processing; and to avoid physical damage to the coffee beans during the processing, the stirring motor 43 and the rolling motor 32 in the device are both designed with a low speed to ensure efficient shell breaking while maximally protecting the integrity of the coffee beans.

[0032] Utilizing the technical solution of the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A coffee shelling machine, comprising a base frame (1), characterized in that: An outer cover (2) is installed above the base frame (1), a shelling box (3) is provided inside the outer cover (2), and a separation box (4) is provided inside the base frame (1) and below the shelling box (3); a feeding hopper (21) is provided outside the outer cover (1), a feeding pipe (31) for connecting the feeding hopper (21) and the shelling box (3) is provided inside the outer cover (2), a rolling motor (32) is provided above the shelling box (3), a rotating disk (33) drivingly connected to the rolling motor (32) is provided inside the shelling box (3), a rolling disk (36) is movably connected to the center of the lower surface of the rotating disk (33) via a connecting rod (35), and a pressing plate (34) extending downward to contact the upper surface of the rolling disk (36) is provided on the lower surface of the rotating disk (33) and located on one side of the connecting rod (35); A stirring motor (43) is installed at the upper end of the separation box (4) via a support frame (41); a stirring disc (44) is drivingly connected to the upper end of the stirring motor (43); a material discharge chute (46) is provided in the middle of the stirring disc (44); a shell discharge pipe (5) is provided on one side of the lower end of the separation box (4); and a bellows (6) is provided on the other side of the separation box (4) corresponding to the shell discharge pipe (5).

2. A coffee shelling machine as claimed in claim 1, characterized in that: The upper surface of the rolling disc (36) is a cyclic structure with ups and downs.

3. A coffee shelling machine as claimed in claim 2, characterized in that: The outer side of the rolling disc (36) is provided with a plurality of slots (37), and the inner wall of the shelling box (3) is provided with a block (38) corresponding to the slots (37).

4. A coffee shelling machine as claimed in claim 1, characterized in that: A plurality of protruding rods (45) are provided above the stirring disc (44), and a material discharge chute (46) is provided between each adjacent protruding rod (45).

5. A coffee shelling machine as claimed in claim 4, characterized in that: The edge of the upper surface of the stirring disc (44) is provided with an upwardly tilted rib.

6. A coffee shelling machine as claimed in claim 1, characterized in that: An inner filter screen (61) is provided on one side of the bellows (6) close to the base frame (1), an outer filter screen (63) is provided on the other side of the bellows (6), and a fan (62) is provided between the two filter screens.

7. A coffee shelling machine as claimed in claim 1, characterized in that: A shield (42) is provided above the support frame (41) and outside the stirring motor (43).

8. A coffee shelling machine as claimed in claim 1, characterized in that: The lower end of the connecting rod (35) is a circular connecting head, and an arc-shaped connecting groove is provided at the center of the rolling disc (36).

9. A method for using a coffee shelling machine according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, first start the rolling motor (32), the stirring motor (43) and the fan (62) to ensure that all components operate normally; S2, adding the dried coffee beans from the feeding hopper (21) into the shelling box (3); S3, the coffee beans falling on the stirring plate (44) are repeatedly rolled and squeezed under the stirring of the protruding rods (45) and the pressing of the rolling plate (36), thereby completing the shell breaking process; S4. The shelled coffee beans are discharged through the discharge chute (46), and the broken shells and impurities are blown toward the shell discharge pipe (5) by the fan (62).

Images