Peeling device for coffee processing

Abstract

The utility model discloses a dehulling device for coffee processing, which relates to the technical field of coffee processing and comprises a device shell, a left feeding channel I, a right feeding channel I and a middle feeding channel II are arranged on the upper side in the device shell, a dehulling cavity is arranged on the lower side in the device shell, and the dehulling cavity is communicated with the upper feeding channel I and the upper feeding channel II. A first peeling roller is arranged in the peeling cavity. Through the grading design of the first feeding channels on the two sides and the second feeding channel in the middle, a single-time or secondary processing path is flexibly selected according to the peeling residual quantity, loss is reduced, efficiency is improved, the first peeling roller is in linkage with the rotating shaft through the rectangular groove rod to achieve composite motion of rotation and left-right sliding, the first peeling roller is matched with the peeling cavity to form a multi-dimensional friction surface, and the peeling effect is improved. The slope shaft drives the sliding shaft to dynamically adjust the pressure, the beans are prevented from being damaged by hard extrusion, the space utilization rate is optimized through the limiting design of the hulling rollers distributed up and down and the guide wheels, and flexibility and stability are both achieved.

Description

Technical Field

[0001] This utility model relates to the field of coffee processing technology, and in particular to a peeling device for coffee processing. Background Technology

[0002] Coffee, made from roasted coffee beans, is one of the world's three major beverages, alongside cocoa and tea. It has a stimulating and invigorating effect due to its caffeine content. Coffee processing refers to the entire process from harvesting the coffee cherries to obtaining roastable coffee beans, including steps such as harvesting, hulling, fermentation, washing, drying, and sorting.

[0003] Coffee peeling is a crucial step in coffee processing, aiming to remove the outer skin and pulp of the coffee cherry to obtain coffee beans (i.e., seeds). Current coffee bean peeling methods are inefficient, with single-pass peeling yielding unsatisfactory results. Furthermore, they cannot select the appropriate peeling step based on the condition of the coffee beans, requiring repeated passes through the peeling mechanism, which is not only time-consuming and labor-intensive but also leads to bean abrasion and breakage. Therefore, this invention proposes a coffee peeling device to solve the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a peeling device for coffee processing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A peeling device for coffee processing includes a housing. The upper side of the housing has two feed channels (left and right) and a middle feed channel (right). The lower side of the housing has a peeling chamber connected to the two feed channels. A peeling roller is installed inside the peeling chamber. Two peeling rollers are rotatably connected to the lower sides of the two feed channels. Rotating shafts are rotatably connected to the left and right sides of the housing. Rectangular groove rods are fixed at both ends of the peeling roller, and the center of each rotating shaft has a corresponding groove. The peeling roller slides left and right within the peeling chamber via the rectangular groove rods at both ends.

[0007] Preferably, an output shaft is provided on one side of the device housing, the output shaft is fixedly connected to the drive device, and inclined shafts are fixed at both ends of the output shaft.

[0008] Preferably, both of the rectangular groove rods have a sliding shaft fixed at their outer ends, and the two sliding shafts correspond to the inclined plane shafts on both sides respectively.

[0009] Preferably, spur gears are fixed on both the left and right sides of the output shaft, and spur gears are fixed on the outside of both rotating shafts. The spur gears on both sides of the output shaft mesh with the spur gears on the two rotating shafts respectively.

[0010] Preferably, each of the two peeling rollers has a pulley fixed at its outer end, and each of the two output shafts has a corresponding pulley fixed at its outer end. Corresponding transmission belts are sleeved on the outside of the two pulleys on the same side, and guide wheels for the corresponding transmission belts are installed on the left and right outer sides of the device housing.

[0011] Preferably, the upper side inside the peeling chamber is provided with an opening that connects two feed channels, namely, feed channel one and feed channel two, and a one-way valve plate is rotatably connected to the opening.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model, through the graded design of two side feeding channels and a middle feeding channel, can flexibly select a single or double peeling path according to the amount of coffee bean peeling residue, which reduces repeated processing losses and improves peeling efficiency. The valve plate structure effectively prevents coffee bean backflow and duct blockage during the peeling process, ensuring unidirectional material flow.

[0014] 2. The peeling roller of this utility model achieves a compound motion of rotation and left and right sliding through the linkage of the rectangular groove rod and the rotating shaft. It forms a multi-dimensional friction surface with the peeling cavity to enhance the uniformity of peeling. At the same time, the inclined shaft drives the sliding shaft to realize the left and right swing of the peeling roller, dynamically adjusting the peeling pressure and avoiding damage to the bean body by hard squeezing.

[0015] 3. The output shaft of this utility model synchronously drives the two rotating shafts through a spur gear, and controls the peeling roller two in conjunction with the pulley and the transmission belt, so as to realize the collaborative operation of multiple components driven by a single power source, reduce energy consumption and structural complexity. The vertical distribution of peeling roller one and peeling roller two and the guide wheel limit design optimize the internal space utilization of the device and meet the needs of compact production. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a peeling device for coffee processing proposed in this utility model;

[0017] Figure 2 This is a front cross-sectional view of a peeling device for coffee processing proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the bottom cross-sectional structure of a peeling device for coffee processing proposed in this utility model;

[0019] Figure 4 This is a side cross-sectional view of the peeling chamber in a peeling device for coffee processing proposed in this utility model.

[0020] In the diagram: 1. Device housing; 2. Feed channel one; 3. Feed channel two; 4. Peeling roller one; 5. Peeling roller two; 6. Output shaft; 7. Rotating shaft; 8. Peeling chamber; 9. Pulley; 10. Transmission belt; 11. Grooved rod; 12. Sliding shaft; 13. Inclined shaft; 14. Spur gear; 15. One-way valve plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A peeling device for coffee processing includes a device housing 1. The upper side of the device housing 1 is provided with two feeding channels 1 on the left and right and a middle feeding channel 2. The lower side of the device housing 1 is provided with a peeling chamber 8, which is connected to the two feeding channels 1 2 and the feeding channel 2 3 on the upper side. A peeling roller 4 is provided inside the peeling chamber 8. A peeling roller 5 is rotatably connected to the lower side of the two feeding channels 1 2. This peeling device can reasonably select the peeling path according to the number of peelings. When the coffee bean skin is almost completely removed and only a little remains, it directly enters the lower peeling chamber 8 through the middle feeding channel 2 3. When there is still a lot of coffee bean skin, it needs to enter the lower peeling chamber 8 through the two feeding channels 1 2 on both sides. First, it passes through the peeling roller 2 5 inside the feeding channel 1 2 for peeling operation, and then enters the peeling chamber 8 for a second peeling through the peeling roller 4.

[0023] The upper side of the peeling chamber 8 is provided with an opening that connects the two feed channels 1 2 and feed channel 2 3. A one-way valve plate 15 is rotatably connected to the opening. The side of the opening is shaped to restrict the one-way valve plate 15 to rotate only in one direction, so as to prevent the coffee beans from flowing back when peeling at the bottom and also to effectively prevent the opening from being blocked.

[0024] The outer shell 1 of the device is rotatably connected to the left and right sides of the rotating shaft 7. The peeling roller 4 is fixed with rectangular groove rods 11 at both ends. The center of the two rotating shafts 7 is provided with corresponding through grooves of the rectangular groove rods 11. The peeling roller 4 slides left and right in the peeling cavity 8 through the rectangular groove rods 11 at both ends. By controlling the rotation of the two rotating shafts 7, the rotation of the middle peeling roller 4 can be driven. The peeling roller 4 can slide back and forth between the two rotating shafts 7, and cooperate with the peeling cavity 8 to achieve efficient multi-dimensional peeling work.

[0025] An output shaft 6 is provided on one side of the outer casing 1 of the device. The output shaft 6 is fixedly connected to the drive device. An inclined shaft 13 is fixed at both ends of the output shaft 6. A sliding shaft 12 is fixed at the outer end of the two rectangular groove rods 11. The two sliding shafts 12 correspond to the inclined shafts 13 on both sides respectively. The drive device instructs the output shaft 6 to rotate. The inclined shafts 13 at both ends of the output shaft 6 contact the sliding shafts 12. The inclined shafts 13 rotate and squeeze the corresponding sliding shafts 12, so as to realize the left and right contact and linkage of the peeling roller 4 in the middle of the two rotating shafts 7.

[0026] Spur gears 14 are fixed on both the left and right sides of the output shaft 6. Spur gears 14 are fixed on the outside of both rotating shafts 7. The spur gears 14 on both sides of the output shaft 6 mesh with the spur gears 14 on the two rotating shafts 7 respectively. Pulleys 9 are fixed on the outer ends of both peeling rollers 5. Pulleys 9 are fixed on the outer ends of both output shafts 6. Corresponding transmission belts 10 are sleeved on the outside of the upper and lower pulleys 9 on the same side. Guide wheels of corresponding transmission belts 10 are installed on the left and right outer sides of the device housing 1. During the rotation of the output shaft 6, the output shaft 6 causes the rotating shafts 7 on both sides to rotate through the meshing left and right spur gears 14. The rotating shafts 7 drive the middle peeling roller 4 to rotate together through the rectangular groove rod 11, so that the peeling roller 4 rotates in the peeling cavity 8 and swings left and right at the same time.

[0027] Furthermore, during the rotation of the left and right rotating shafts 7, the rotation of the peeling rollers 5 inside the feed channels 1-2 on both sides is achieved through the upper and lower pulleys 9 on the same side and the transmission belt 10. After passing through the feed channels 1-2, the coffee beans enter the lower peeling chamber 8. The two peeling processes in a row can greatly improve the peeling efficiency of coffee beans.

[0028] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A peeling device for coffee processing, comprising a device housing (1), characterized in that, The device housing (1) has two feed channels (2) on the upper side and a middle feed channel (3) on the middle side. The device housing (1) has a peeling chamber (8) on the lower side. The peeling chamber (8) is connected to the two feed channels (2) and the feed channel (3) on the upper side. The peeling chamber (8) has a peeling roller (4) inside. The two feed channels (2) are rotatably connected to the lower side of the inner side of the two feed channels (2). The device housing (1) has a rotating shaft (7) rotatably connected to the left and right outer sides. The peeling roller (4) has a rectangular groove rod (11) fixed at both ends. The rotating shaft (7) has a corresponding groove at the center of the inner side of the two rotating shafts (7). The peeling roller (4) slides left and right in the peeling chamber (8) through the rectangular groove rods (11) at both ends.

2. The peeling device for coffee processing according to claim 1, characterized in that, An output shaft (6) is provided on one side of the outer casing (1) of the device. The output shaft (6) is fixedly connected to the drive device, and inclined shafts (13) are fixed at both ends of the output shaft (6).

3. The peeling device for coffee processing according to claim 1, characterized in that, Both of the rectangular groove rods (11) have a sliding shaft (12) fixed at their outer ends, and the two sliding shafts (12) correspond to the inclined shafts (13) on both sides respectively.

4. The peeling device for coffee processing according to claim 2, characterized in that, The output shaft (6) is fixed with spur gears (14) on both sides, and the two rotating shafts (7) are fixed with spur gears (14) on the outside. The spur gears (14) on both sides of the output shaft (6) mesh with the spur gears (14) on the two rotating shafts (7) respectively.

5. The peeling device for coffee processing according to claim 2, characterized in that, Both peeling rollers (5) are fixed with pulleys (9) at their outer ends, and both output shafts (6) are fixed with corresponding pulleys (9) at their outer ends. Corresponding transmission belts (10) are sleeved on the outside of the two pulleys (9) on the same side, and guide wheels of corresponding transmission belts (10) are installed on the left and right outer sides of the device housing (1).

6. The peeling device for coffee processing according to claim 1, characterized in that, The peeling chamber (8) has an opening on the upper side that connects the two feed channels one (2) and the feed channel two (3), and a one-way valve plate (15) is rotatably connected to the opening.

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