Coffee picking machine

Abstract

The utility model relates to the technical field of agricultural production, in particular to a coffee picking machine which comprises a shell, a driving device and a picking assembly, a feeding port and a discharging port which are communicated with each other are formed in the two ends of the shell respectively, the picking assembly is rotationally connected into the shell, the driving device is arranged on one side of the shell, and the driving device is arranged on the other side of the shell. The power output end of the driving device is connected with the picking assembly and used for grabbing coffee fruits on coffee bearing branches. According to the coffee fruit picking machine, the driving device drives the picking assembly to rotate, then the feeding opening is close to a coffee fruit bearing branch, efficient picking of coffee fruits can be achieved, portability is high, and manual handheld operation is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of agricultural production technology, and more specifically, to a coffee harvesting machine. Background Technology

[0002] Coffee is the seed of the coffee plant (Coffea macrantha, Coffea mesenteroides, and Coffea grandiflora), belonging to the Rubiaceae family. Currently, there are three common methods for harvesting coffee:

[0003] 1. Mechanical harvesting is suitable for areas with concentrated coffee-producing regions, such as the Brazilian Highlands. Due to the high altitude and flat terrain of these areas, large machinery can easily access the plantations. The ripe berries are shaken to fall, similar to the harvesting of dates in some parts of my country. This method is efficient and low-cost, but the problem is that unripe berries are also collected, leading to inconsistent coffee quality.

[0004] 2. Quick-harvest: In some mountainous areas where machinery cannot access, harvesting must be done manually. Quick-harvest involves picking all the coffee beans from a single branch in one go. Although berries at various stages of ripeness are present, they are manually sorted after harvesting to ensure the quality of the coffee beans.

[0005] 3. Hand-picking is also a method of manual harvesting, but unlike quick-peeling, it involves multiple harvests, each picking only coffee cherries of the same ripeness. This method requires a large amount of manual labor, similar to tea harvesting, with several harvests per year, each with the same level of ripeness. Due to the high physical labor involved, the labor cost is very high.

[0006] Chinese patent CN202310648710.4 discloses a coffee harvester, belonging to the field of agricultural production equipment technology. The coffee harvester includes a collection box, a drive unit, a pneumatic device, and a disturbance roller. The disturbance roller is installed inside the collection box and connected to a drive mechanism for driving it. The collection box is connected to the pneumatic device, which supplies air to the collection box and disturbs the airflow within it. With the assistance of the drive mechanism, the material is continuously blown onto the disturbance roller, causing it to vibrate and detach. This technical solution uses the drive mechanism to drive the disturbance roller, initially detaching the coffee berries from the coffee branches. After the fan is turned on, the wind force acts in conjunction with the force of the wind to dislodge the coffee berries from the branches held between the disturbance roller's teeth. Under the influence of the wind, the coffee beans in the collection box are in an active state, ensuring overall detachment efficiency. However, this technical solution has low portability and is not convenient for manual handling. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of existing harvesting machines in terms of low portability, and to propose a coffee harvesting machine that is compact in structure and small in size, making it easy for workers to carry out efficient harvesting operations by hand.

[0008] To achieve the above objectives, this technical solution provides a coffee harvester, including a housing, a drive unit, and a harvesting component. The housing has a feed inlet and a discharge outlet connected to each other at both ends. The harvesting component is rotatably connected inside the housing. The drive unit is located on one side of the housing, and the power output end of the drive unit is connected to the harvesting component to grasp coffee berries from coffee fruiting branches.

[0009] In this technical solution, a worker holds a handheld harvester and positions the inlet of the harvester parallel to the coffee cherries, bringing the coffee cherries as close as possible to the harvesting assembly. Driven by a driving device, the harvesting assembly rotates and grasps the coffee cherries from the cherries. The coffee cherries are blocked by the two edges of the inlet. Once the coffee cherries on the cherries enter the inlet, they are grasped and removed by the harvesting assembly, and then separated through the outlet. This harvester is small and compact, easy for workers to handle and move. It can harvest single branches, allowing workers to accurately harvest based on the coffee's ripeness, thus ensuring the quality of the harvested coffee.

[0010] As a preferred embodiment, the picking component is a rotating structure, and the space occupied by the picking component when rotating is cylindrical. In order to install the picking component, the housing is provided with an inner cavity adapted to the picking component. The inner cavity is connected to the inlet and outlet respectively. The two ends of the picking component are rotatably connected to the side wall of the inner cavity respectively. The power output end of the driving device passes through the inner cavity and is connected to one end of the picking component.

[0011] As a preferred embodiment, in order to grasp and separate coffee cherries, the picking assembly includes a roller and several blades. The several blades are arranged in a row of grasping structures at intervals along the axial direction of the roller, and the several rows of grasping structures are arranged at intervals along the circumferential direction of the roller. The driving device drives the roller to rotate, causing the several blades to rotate cyclically. During the picking operation, the coffee cherries are grasped and detached by the rotation of the blades, and the detached coffee cherries are separated from the outlet after rotating a certain angle with the blades.

[0012] As a preferred embodiment, in order to separate coffee cherries without damaging the branches, the coffee fruiting branches are blocked outside the grasping and separating structure by the two sides of the feed inlet of the harvester, and the spacing between adjacent teeth in the grasping and separating structure is smaller than the diameter of the coffee cherry.

[0013] As a preferred embodiment, in order to facilitate the coffee cherries to be inserted between adjacent denticles, the width of the denticles gradually decreases from the end near the roller to the end away from the roller, so that the distance between the ends of two adjacent denticles is larger, increasing the gripping force on the coffee cherries and improving the harvesting error tolerance.

[0014] As a preferred embodiment, the ends of the serrations are bent in the direction of rotation to form hooks, which can better grasp the round coffee cherries and pull them off.

[0015] As a preferred embodiment, to facilitate the entry of coffee cherries into the feed inlet, a picking cover is provided around the feed inlet for guidance, which has the function of widening the feed inlet.

[0016] As a preferred option, to facilitate the collection of coffee cherries, the outlet is detachably connected to a container for collecting coffee cherries. This container can be a long cloth bag, a small basket, a storage bucket, etc. When the container is full of coffee cherries, it can be quickly removed to pour out the coffee cherries for collection.

[0017] As a preferred embodiment, to facilitate the handling of the harvester by the staff, a handle for gripping is connected to the side of the housing opposite to the feed inlet.

[0018] As a preferred embodiment, the handle is equipped with a speed control switch electrically connected to the drive device, which can control the opening and closing of the power output end of the drive device and the rotation speed.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model coffee harvester can be handheld operated by workers. The coffee cherries enter through the feed inlet, and the harvesting component is rotated by the drive device to grab and remove the coffee cherries from the fruiting branches. The coffee cherries are then separated from the discharge outlet. The harvester has a compact structure and small size, making it easy for workers to move and operate.

[0021] 2. By setting the serrations smaller than the diameter of the coffee fruit, the branches are not damaged during harvesting. The hooks at the ends of the serrations allow them to better grip the coffee fruit and remove it from the tree, resulting in high harvesting efficiency.

[0022] 3. By setting the width of the blade teeth to gradually decrease from the end near the roller to the end far from the roller, and in conjunction with the picking cover on the feed inlet, the coffee cherries can be guided, making it easier for the coffee cherries to enter the feed inlet and be held between two adjacent blade teeth, making picking more convenient.

[0023] 4. By setting a container at the outlet, coffee cherries can be collected easily, preventing them from scattering in all directions after detaching. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the coffee harvester of this utility model;

[0025] Figure 2 yes Figure 1 A diagram from another perspective;

[0026] Figure 3 This is a schematic diagram of the internal structure of the shell;

[0027] Figure 4 This is a schematic diagram of the harvesting component;

[0028] Figure 5 yes Figure 4 A diagram from another perspective.

[0029] In the diagram: 1. Shell; 11. Inlet; 12. Outlet; 13. Inner cavity; 2. Drive device; 21. Speed ​​control switch; 3. Harvesting assembly; 31. Roller; 32. Teeth; 321. Hook; 4. Container; 5. Harvesting cover; 6. Handle; 7. Power supply. Detailed Implementation

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate this embodiment, 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. The positional relationships described in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[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," "long," and "short" 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 component 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] The technical solution of this utility model will be further described in detail below through specific embodiments and with reference to the accompanying drawings:

[0033] Example 1:

[0034] like Figures 1 to 5As shown, this embodiment provides a coffee harvester, including a housing 1, a drive device 2, and a harvesting component 3. The housing 1 has a feed inlet 11 and a discharge outlet 12 connected to each other at both ends. The harvesting component 3 is rotatably connected inside the housing 1. The drive device 2 is located on one side of the housing 1, and the power output end of the drive device 2 is connected to the harvesting component 3 to grab coffee berries from the coffee fruiting branches.

[0035] In this embodiment, the drive device 2 is a DC worm gear reducer motor with a voltage of 24-48V. This motor has high transmission efficiency: the transmission efficiency of worm gear reducers typically reaches over 90%, with low friction loss, enabling efficient energy conversion and utilization. During transmission, friction and vibration are minimal, and noise is relatively low, resulting in a better working experience for operators. It also has strong load-bearing capacity: the structural design of the worm gear reducer gives it high load-bearing capacity, capable of withstanding large torques and loads, suitable for the needs of harvesting operations. The large meshing area between the worm wheel and worm pair makes the reducer particularly outstanding in heavy-load environments. Furthermore, it operates stably and reliably: the worm gear reducer uses a continuous helical gear transmission method, resulting in smooth operation, low noise, extended service life, and improved working environment quality. Its self-locking characteristic ensures the stability and reliability of the transmission; compact structure: the worm gear reducer has a compact structure, small size, light weight, and is easy to install, making it suitable for use in confined spaces, thus making the structure of this harvester compact; low energy consumption: due to its low friction and vibration, it has low energy consumption, which helps to reduce overall energy consumption and is convenient for handheld operation; good heat dissipation: the worm gear reducer has good heat exchange performance and fast heat dissipation, and the motor is located on the outer wall of the housing 1, which is conducive to motor heat dissipation and ensures that the reducer can maintain good performance under high load.

[0036] Specifically, the picking component 3 is a rotating structure, and the housing 1 has an inner cavity 13 adapted to the picking component 3. The inner cavity 13 is connected to the inlet 11 and the outlet 12 respectively. The two ends of the picking component 3 are rotatably connected to the side wall of the inner cavity 13 respectively. The power output end of the driving device 2 passes through the inner cavity 13 and is connected to one end of the picking component 3.

[0037] In this embodiment, the inner cavity 13 is a cylindrical structure with a height of 120mm and a bottom radius of 60mm.

[0038] Specifically, the picking component 3 includes a roller 31 and a plurality of teeth 32. The plurality of teeth 32 are arranged in a row of gripping structures at intervals along the axial direction of the roller 31, and 2 to 3 rows of gripping structures are arranged at intervals along the circumferential direction of the roller 31.

[0039] In this embodiment, mounting holes are provided on both sides of the inner cavity 13, and bearings are provided in the mounting holes. The two ends of the roller 31 are respectively mounted on the bearings. After the coffee fruit branches approach the feed inlet 11 in parallel, the two ends of the coffee fruit branches are blocked by the edge of the feed inlet 11, while the coffee fruit enters the feed inlet 11. As the roller 31 drives the blade teeth 32 to rotate, the coffee fruit is stuck between two adjacent blade teeth 32 to grab the coffee fruit away, thereby realizing the detachment of the coffee fruit. The detached coffee fruit slides out of the discharge outlet 12 along the inner cavity 13.

[0040] Specifically, the spacing between adjacent teeth 32 in the grasping structure is smaller than the diameter of the coffee fruit.

[0041] In this embodiment, the length of the roller 31 is 120mm, the width of the tooth 32 is 10mm, the length of the tooth 32 is 55mm, the spacing between adjacent teeth 32 is 6mm, each row of gripping structures is provided with 8 teeth 32, and there can be 2 to 3 rows of gripping structures. Each row of gripping structures is installed on the roller at a uniform angle (forming an angle of 180° or 120° between them).

[0042] Specifically, the end of the blade 32 is bent in the direction of rotation to form a hook 321.

[0043] In this embodiment, the hook 321 has an arc-shaped structure, which facilitates the separation of coffee cherries without damaging them.

[0044] Specifically, a handle 6 for gripping is connected to the side of the housing 1 opposite to the feed port 11.

[0045] In this embodiment, a power bank 7 is detachably connected to the bottom of the handle 6. The power bank 7 is electrically connected to the drive device 2. The power bank 7 is a lithium battery, which has the advantages of large capacity, fast charging speed and long service life, making it convenient for workers to carry and move around, and has better portability.

[0046] Specifically, the handle 6 is equipped with a speed control switch 21 that is electrically connected to the drive device 2.

[0047] In this embodiment, the forward and reverse rotation of the drive device 2 can be achieved by the speed control switch 21. The drive device 2 is stepless speed control and can be set to 160-285 revolutions per minute. When a branch gets stuck in the inner cavity 13, the branch can be driven out of the feed port 11 by reversing the rotation.

[0048] Example 2:

[0049] This embodiment is similar to Embodiment 1, except that, in this embodiment, as shown... Figure 4 As shown, the width of the tooth 32 gradually decreases from the end near the roller 31 to the end away from the roller 31.

[0050] In this embodiment, the minimum distance between two adjacent teeth 32 is 6mm, and the maximum distance is 8mm. The end of the tooth 32 closest to the roller 31 is 10mm, and the end furthest from the roller 31 is 8mm.

[0051] Specifically, such as Figures 1 to 3 As shown, the feed inlet 11 is surrounded by a picking cover 5 for guidance.

[0052] In this embodiment, the picking cover 5 is connected to the feed inlet 11, and the end of the picking cover 5 extends away from the feed inlet 11, making it easier for coffee cherries to enter the feed inlet 11.

[0053] Example 3:

[0054] This embodiment is similar to Embodiment 1, except that, in this embodiment, as shown... Figures 1 to 3 As shown, the outlet 12 is detachably connected to a container 4 for collecting coffee cherries.

[0055] In this embodiment, the discharge port 12 is located at the bottom of the housing 1, and the bottom of the housing 1 is provided with buckles or hooks. The container 4 is a long strip of cloth bag, which is connected to the bottom of the housing 1 by buckles and hooks.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

[0057] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A coffee harvesting machine, characterized in that, The device includes a housing (1), a drive unit (2), and a picking assembly (3). The housing (1) has a feed inlet (11) and a discharge outlet (12) connected at both ends. The picking assembly (3) is rotatably connected inside the housing (1). The drive unit (2) is located on one side of the housing (1), and its power output end is connected to the picking assembly (3) to pick coffee berries from the coffee fruiting branches. The picking assembly (3) is a rotating structure. The housing (1) has an inner cavity (13) adapted to the picking assembly (3). The inner cavity (13) is connected to the feed inlet (11) and the discharge outlet (12). 11) and the discharge port (12) are connected. The two ends of the picking component (3) are rotatably connected to the side wall of the inner cavity (13). The power output end of the driving device (2) is inserted into the inner cavity (13) and connected to one end of the picking component (3). The picking component (3) includes a roller (31) and several teeth (32). Several teeth (32) are arranged in a row of gripping structures along the axial direction of the roller (31). Several rows of gripping structures are arranged circumferentially along the roller (31). The housing (1) is connected to a handle (6) for holding on the side away from the feed port (11).

2. A coffee harvester according to claim 1, characterized in that, The spacing between adjacent teeth (32) in the grasping structure is smaller than the diameter of the coffee fruit.

3. A coffee harvester according to claim 1, characterized in that, The width of the blade (32) gradually decreases from one end near the roller (31) to the end away from the roller (31).

4. A coffee harvester according to claim 1, characterized in that, The end of the blade (32) bends in the direction of rotation to form a hook (321).

5. A coffee harvester according to claim 1, characterized in that, The feed inlet (11) is surrounded by a picking cover (5) for guidance.

6. A coffee harvester according to claim 1, characterized in that, The outlet (12) is detachably connected to a container (4) for collecting coffee berries.

7. A coffee harvester according to claim 1, characterized in that, The handle (6) is provided with a speed control switch (21) that is electrically connected to the drive device (2).

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