Coffee berry shell breaking machine

Abstract

The utility model belongs to the technical field of coffee processing equipment, and particularly relates to a coffee berry shell breaking machine. The rack is formed by connecting a first rack and a second rack; the top of the first rack is connected with a feeding hopper, a material distributing hopper is arranged below the feeding hopper, and the lower part of the material distributing hopper is communicated with the shell breaking mechanism; the screening mechanism is connected to the second rack and used for separating coffee shells from coffee beans, the screening mechanism comprises a rotary drum arranged rotationally and an inner drum fixedly arranged, one end of the inner drum extends into the rotary drum, the other end of the inner drum is connected with a fan, a notch is formed in the top of the inner drum and communicated with the discharging end of the shell breaking mechanism, and the shell breaking mechanism is connected with the shell breaking mechanism. And a discharging plate is arranged below the joint of the rotary drum and the inner drum. The shell breaking cutter wheel is matched with a cutter groove of the pressing plate, stable shearing force is formed, the shell breaking rate is high, and coffee beans are not prone to being damaged; size preliminary screening is achieved through the screening holes, and broken shell impurities are separated; air flow of the fan assists in winnowing, and the dual mechanism ensures the purity of coffee beans.

Description

Technical Field

[0001] This utility model belongs to the technical field of coffee processing equipment, specifically relating to a coffee cherry crushing machine. Background Technology

[0002] In the coffee fruit processing, the shelling process is a crucial step in obtaining coffee beans, and its technical level directly affects the quality of coffee beans and production efficiency.

[0003] Currently, small-scale coffee processing enterprises or traditional workshops mostly use manual cracking. While manual operation can avoid damaging coffee beans to some extent by relying on experience, the production efficiency is extremely low, with a limited number of coffee cherries processed per person per hour, making it difficult to meet the needs of large-scale industrial production. Moreover, long hours of repetitive labor can easily lead to worker fatigue, increasing the risk of operational errors, while rising labor costs severely compress the profit margins of enterprises.

[0004] Some companies use mechanical shell-breaking equipment, commonly extrusion and impact crushers. Extrusion crushers apply pressure to coffee cherries through upper and lower extrusion components to break the shells. However, due to differences in the size and shape of coffee cherries, it's difficult to precisely control the extrusion pressure, easily resulting in excessive pressure damaging the coffee beans, or insufficient pressure leading to incomplete shell breaking. Impact crushers use the impact force generated by high-speed rotating components to break the coffee cherry shells, but high-speed impacts easily damage the surface and internal structure of the coffee beans, affecting the retention of flavor compounds and reducing the quality of the finished product. Furthermore, during the shell-breaking process, the differences in the size and shape of coffee cherries make it difficult to precisely control the crushing force, easily damaging the coffee beans and leading to inconsistent crushing results, increasing the difficulty of separating the coffee beans from the shells. This results in a large amount of broken shell impurities mixed into the coffee beans. Therefore, we have designed an improved coffee cherry shell-breaking machine. Utility Model Content

[0005] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a coffee berry crusher to solve the problems in the background technology.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A coffee berry crusher, comprising:

[0008] A rack consisting of a first rack and a second rack connected together;

[0009] The top of the first frame is connected to a feeding hopper, and a distributing hopper is provided below the feeding hopper. The lower part of the distributing hopper is connected to the shell-breaking mechanism.

[0010] It also includes a screening mechanism for separating coffee shells and coffee beans connected to the second frame. The screening mechanism includes a rotating drum and a fixed inner cylinder. One end of the inner cylinder extends into the rotating drum, and the other end of the inner cylinder is connected to a fan. The top of the inner cylinder has a notch that communicates with the discharge end of the shell-breaking mechanism. A discharge plate is provided below the connection between the rotating drum and the inner cylinder.

[0011] Furthermore, it also includes a drive structure for driving the rotating drum to rotate. A rotating shaft is coaxially arranged inside the rotating drum. The rotating shaft is fixedly connected to the inner wall of the rotating drum through a connecting plate. One end of the rotating shaft is rotatably connected to the second frame, and the other end is connected to the drive structure.

[0012] Furthermore, the drive structure includes a second drive motor mounted on the top of the second frame, the second drive motor being rotatably connected to a pulley structure and a rotating shaft.

[0013] Furthermore, an outer baffle is connected to one end of the rotating shaft near the pulley structure.

[0014] Furthermore, the end of the rotating drum away from the inner drum is provided with a number of annular array sieve holes, and the inner wall of the rotating drum is provided with a number of arc-shaped strips.

[0015] Furthermore, the shell-breaking mechanism includes a cutter shaft rotatably mounted on the first frame and a pressure plate obliquely fixedly connected to the first frame. Multiple shell-breaking cutter wheels are connected to the cutter shaft, and multiple cutter grooves adapted to the shell-breaking cutter wheels are provided on the pressure plate.

[0016] Furthermore, the shell-breaking mechanism also includes a first drive motor, which is connected to one end of the cutter shaft via a pulley structure.

[0017] Furthermore, it also includes a receiving plate located below the cutter shaft and the pressure plate, with a feed plate extending into the rotary drum at one end connected below the receiving plate.

[0018] Compared with the prior art, this utility model has the following advantages:

[0019] 1. By setting the grooves of the shell-breaking blade wheel and the pressure plate to match, a stable shearing force is formed, resulting in a high shell-breaking rate and less damage to coffee beans;

[0020] 2. By setting up a rotating drum combined with arc-shaped strips to scatter materials, the material is initially screened by size through the sieve holes to separate broken shells and impurities; the airflow of the fan assists in air separation to further separate light coffee shells. This dual mechanism ensures the purity of coffee beans and reduces the cost of subsequent manual screening. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of an embodiment of a coffee berry crusher according to the present invention (viewpoint 1).

[0022] Figure 2 This is a three-dimensional structural diagram of an embodiment of a coffee berry crusher according to the present invention (viewpoint 2).

[0023] Figure 3 This is a three-dimensional structural diagram of a coffee berry crushing machine according to the present invention, showing the removal of the machine frame.

[0024] Figure 4 This is a three-dimensional structural diagram of the shell-breaking mechanism in an embodiment of the coffee berry shell-breaking machine of this utility model;

[0025] Figure 5 This is a three-dimensional structural diagram of the screening mechanism in an embodiment of a coffee berry crushing machine of the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the rotating drum in an embodiment of the coffee berry crushing machine of this utility model;

[0027] The reference numerals in the accompanying drawings include:

[0028] First frame (101), second frame (102), feed hopper (201), distribution hopper (2021), dividing plate (2022), shell breaking mechanism (203), first drive motor (2031), pulley structure (2032), cutter shaft (2033), shell breaking cutter wheel (2034), pressure plate (2035), connecting shaft (2036), receiving plate (204), screening mechanism (3), rotating drum (301), screen hole (3011), arc strip plate (3012), feed plate (302), inner cylinder (303), fan (304), discharge plate (305), outer baffle (306), rotating shaft (307), second drive motor (308), connecting plate (309), control box (4), transfer tool (5), moving base (501), round plate (502), transfer bucket (503). Detailed Implementation

[0029] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0030] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] Example 1:

[0034] like Figure 1-6 As shown, the present invention provides a coffee berry shelling machine, comprising: a frame formed by connecting a first frame 101 and a second frame 102; a feeding hopper 201 connected to the top of the first frame 101, a distributing hopper 2021 provided below the feeding hopper 201, and the lower part of the distributing hopper 2021 communicating with the shelling mechanism 203.

[0035] In this embodiment, a screening mechanism 3 for separating coffee shells and coffee beans is also included, which is connected to the second frame 102. The screening mechanism 3 includes a rotating drum 301 and a fixed inner cylinder 303. One end of the inner cylinder 303 extends into the rotating drum 301, and the other end of the inner cylinder 303 is connected to a fan 304. The top of the inner cylinder 303 is provided with a notch that communicates with the discharge end of the shell breaking mechanism 203. A discharge plate 305 is provided below the connection between the rotating drum 301 and the inner cylinder 303.

[0036] In this embodiment, a drive structure for driving the rotating drum 301 to rotate is also included. A rotating shaft 307 is coaxially arranged inside the rotating drum 301. The rotating shaft 307 is fixedly connected to the inner wall of the rotating drum 301 through a connecting plate 309. One end of the rotating shaft 307 is rotatably connected to the second frame 102, and the other end is connected to the drive structure.

[0037] In this embodiment, the drive structure includes a second drive motor 308 mounted on the top of the second frame 102. The second drive motor 308 is rotatably connected to a rotating shaft 307 via a pulley structure. An outer baffle 306 is connected to one end of the rotating shaft 307 near the pulley structure. A plurality of annular arrayed sieve holes 3011 are provided on the end of the rotating drum 301 away from the inner drum 303, and a plurality of arc-shaped strips 3012 are provided on the inner wall of the rotating drum 301.

[0038] In this embodiment, the shell-breaking mechanism 203 includes a cutter shaft 2033 rotatably mounted on the first frame 101 and a pressure plate 2035 obliquely fixedly connected to the first frame 101. Multiple shell-breaking cutter wheels 2034 are connected to the cutter shaft 2033, and multiple cutter grooves adapted to the shell-breaking cutter wheels 2034 are provided on the pressure plate 2035. Several dividing plates 2022 are provided inside the dispensing hopper 2021 so that coffee berries can flow directly into the cutter grooves.

[0039] In this embodiment, the shell-breaking mechanism 203 further includes a first drive motor 2031, which is connected to one end of the cutter shaft 2033 via a pulley structure 2032.

[0040] In this embodiment, a receiving plate 204 located below the cutter shaft 2033 and the pressure plate 2035 is also included. A feed plate 302 with one end extending into the rotating drum 301 is connected below the receiving plate 204.

[0041] Working principle: Coffee cherries fall from the feed hopper 201 into the distribution hopper 2021 and are evenly fed into the shell-breaking mechanism 203. The first drive motor 2031 drives the cutter shaft 2033 to rotate via the pulley structure 2032. The shell-breaking cutter wheel 2034 and the cutter groove of the pressure plate 2035 form a shearing surface, applying extrusion and shearing force to the coffee cherry shells to break them. The broken coffee beans and shells fall into the receiving plate 204 and then into the screening mechanism 3 via the feed plate 302. The material enters the rotating drum 301 through the top notch of the inner cylinder 303. The second drive motor 308 drives the rotating drum to rotate, and the arc-shaped strips 3012 on the inner wall lift and scatter the material. Smaller coffee shell fragments are discharged through the sieve holes 3011, achieving size screening. The blower 304 delivers airflow to the inner cylinder. The airflow enters the rotating drum through the notch of the inner cylinder, blowing the lighter coffee shells towards the tail of the rotating drum, while the coffee beans, due to their larger mass, fall into the discharge plate 305 and are discharged, achieving air separation.

[0042] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software or methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A coffee berry crusher, characterized in that: include; A frame consisting of a first frame (101) and a second frame (102); The top of the first frame (101) is connected to a feeding hopper (201), and a distributing hopper (2021) is provided below the feeding hopper (201). The lower part of the distributing hopper (2021) is connected to the shell breaking mechanism (203). It also includes a sieving mechanism (3) for separating coffee shells and coffee beans connected to the second frame (102). The sieving mechanism (3) includes a rotating drum (301) and a fixed inner cylinder (303). One end of the inner cylinder (303) extends into the rotating drum (301), and the other end of the inner cylinder (303) is connected to a fan (304). The top of the inner cylinder (303) is provided with a notch that communicates with the discharge end of the shell breaking mechanism (203). A discharge plate (305) is provided below the connection between the rotating drum (301) and the inner cylinder (303).

2. The coffee cherry crusher as described in claim 1, characterized in that: It also includes a drive structure for driving the rotating drum (301) to rotate. The rotating drum (301) has a rotating shaft (307) coaxially arranged inside. The rotating shaft (307) is fixedly connected to the inner wall of the rotating drum (301) through a connecting plate (309). One end of the rotating shaft (307) is rotatably connected to the second frame (102), and the other end is connected to the drive structure.

3. A coffee cherry crusher as described in claim 2, characterized in that: The drive structure includes a second drive motor (308) mounted on the top of the second frame (102), and the second drive motor (308) is rotatably connected to a pulley structure and a rotating shaft (307).

4. A coffee cherry crusher as described in claim 3, characterized in that: An outer baffle (306) is connected to one end of the rotating shaft (307) near the pulley structure.

5. A coffee cherry crusher as described in claim 1, characterized in that: The rotating cylinder (301) has several annular arrays of sieve holes (3011) on one end of the cylinder away from the inner cylinder (303), and the inner wall of the rotating cylinder (301) is provided with multiple arc-shaped strips (3012).

6. A coffee cherry crusher as described in claim 1, characterized in that: The shell-breaking mechanism (203) includes a cutter shaft (2033) rotatably mounted on the first frame (101) and a pressure plate (2035) obliquely fixedly connected to the first frame (101). Multiple shell-breaking cutter wheels (2034) are connected to the cutter shaft (2033), and multiple cutter grooves adapted to the shell-breaking cutter wheels (2034) are provided on the pressure plate (2035).

7. A coffee cherry crusher as described in claim 6, characterized in that: The shell-breaking mechanism (203) also includes a first drive motor (2031), which is connected to one end of the cutter shaft (2033) via a pulley structure (2032).

8. A coffee cherry crusher as described in claim 6, characterized in that: It also includes a receiving plate (204) located below the cutter shaft (2033) and the pressure plate (2035), and a feed plate (302) with one end extending into the rotary drum (301) is connected below the receiving plate (204).

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