Processing equipment for betel nut

Abstract

The present application belongs to the technical field of betel nut preparation, and particularly relates to a processing equipment for betel nuts, comprising a control system and, sequentially arranged and controlled by the control system, a betel nut baking equipment, a stirring and gluing equipment and a betel nut cooling equipment. A weighing equipment is arranged between the betel nut baking equipment and the stirring and gluing equipment. The control system quantitatively dispenses glue according to the weight of the betel nuts entering the stirring and gluing equipment, sprays glue, and glues the betel nuts in the process of rotation of the stirring and gluing equipment. Compared with the prior art, the present application can uniformly bake, uniformly glue and slowly cool the betel nuts through ingenious structural design. The whole process can be automated, greatly saving manpower, material resources and time, reducing the area of site use, and improving the stability, uniformity and processing efficiency of the products.

Description

Technical Field

[0001] This invention belongs to the field of areca nut preparation technology, and in particular relates to a areca nut processing equipment. Background Technology

[0002] In the preparation process of areca nut, it is necessary to first bake and dry the areca nut, then stir it to achieve a surface coating of gum, and finally cool and pack it into cylinders.

[0003] In current technology, the preparation of areca nuts is basically still done manually. This leads to uneven surface baking temperatures and varying volatilization times within the same batch of areca nuts, resulting in inconsistent internal moisture content that is difficult to control within a stable range. Ultimately, this results in an uneven surface coating and inconsistent taste after the areca nuts are coated with gum. Furthermore, manual handling and loading of areca nuts require a significant amount of manpower, resources, and time, as well as a large workspace.

[0004] Existing mixers cannot evenly coat areca nuts with gum, resulting in an uneven coating that affects the taste and color. Furthermore, the gum adheres to the inner walls of the mixer and is difficult to clean. Currently, personnel must climb into the mixer from the inlet to clean the inner walls (which is unsafe), otherwise it cannot be completely cleaned, leading to mold growth over time and compromising food hygiene. If integrated with automated equipment, it becomes even more difficult for personnel to safely enter the drum for cleaning. Additionally, the outlet of existing areca nut mixers is located at the top, causing the discharged material to fall from a considerable height, scratching the surface of the areca nuts and affecting their appearance.

[0005] After being coated with sizing agent, betel nuts need to be cooled in a drying room for 2-4 hours. The entire process involves slow cooling to ensure a smooth sizing agent on the surface of the betel nuts and to guarantee a good taste. This process requires a large number of betel nuts to be manually transported to the coating room (time-consuming and labor-intensive). After coating, the nuts need to be promptly transferred to the drying room for cooling; otherwise, the gloss and taste of the sizing agent on the surface will be affected, resulting in a large number of substandard or defective products.

[0006] In view of this, the present invention aims to provide a betel nut processing device, which, through a clever structural design, can uniformly roast, uniformly coat and spray the betel nut, and slowly cool it. The entire process can be automated, greatly saving manpower, material resources and time, reducing the area required, and improving product stability, uniformity and processing efficiency. Summary of the Invention

[0007] The purpose of this invention is to provide a betel nut processing device that addresses the shortcomings of existing technologies. Through its ingenious structural design, the device can uniformly roast, uniformly coat and spray the betel nut, and slowly cool it. The entire process can be automated, greatly saving manpower, material resources and time, reducing the area required, and improving product stability, uniformity and processing efficiency.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A betel nut processing device includes a control system and a betel nut roasting device, a mixing and coating device, and a betel nut cooling device, which are controlled by the control system and arranged sequentially. A weighing device is provided between the betel nut roasting device and the mixing and coating device. The control system dispenses and sprays adhesive according to the weight of the betel nut entering the mixing and coating device, and coats the betel nut with adhesive during the rotation of the mixing and coating device.

[0010] As an improvement to the betel nut processing equipment of the present invention, the betel nut roasting equipment includes a first feeding mechanism, a first spreading mechanism, a hot air roasting mechanism and a discharging mechanism arranged in sequence. The hot air roasting mechanism includes a first hot air roasting mechanism, a second hot air roasting mechanism and a third hot air roasting mechanism arranged in sequence from top to bottom. The temperature in the first hot air roasting mechanism is higher than the temperature in the second hot air roasting mechanism, and the temperature in the second hot air roasting mechanism is higher than the temperature in the third hot air roasting mechanism.

[0011] As an improvement to the betel nut processing equipment of the present invention, the first hot air baking mechanism includes a first mesh conveyor belt and an air heating and conveying mechanism, the second hot air baking mechanism includes a second mesh conveyor belt, and the third hot air baking mechanism includes a third mesh conveyor belt. A first guide plate for guiding betel nuts to the second mesh conveyor belt is provided near the transport end of the first mesh conveyor belt, and a second guide plate for guiding betel nuts to the third mesh conveyor belt is provided near the transport end of the second mesh conveyor belt.

[0012] As an improvement to the betel nut processing equipment of the present invention, the hot air baking mechanism is further connected to a blower and an electric ball valve; the first hot air baking mechanism is also connected to a constant temperature system.

[0013] As an improvement to the betel nut processing equipment of the present invention, the mixing and coating equipment includes a frame, a mixing drum disposed on the frame, mixing blades disposed inside the mixing drum, an atomizing spraying structure disposed on the frame and spraying atomized adhesive liquid into the mixing drum, a discharge port disposed on the side wall of the mixing drum, and an openable cleaning window disposed on the front wall of the mixing drum.

[0014] As an improvement to the betel nut processing equipment of the present invention, the atomizing spray structure includes a spray pipe and a plurality of nozzles disposed on the spray pipe.

[0015] As an improvement to the betel nut processing equipment of the present invention, the stirring blade includes a plurality of first blades that are connected at one end and are free at the other end and are fan-shaped, and a second blade disposed on one side of the first blade. One end of the second blade is connected to another second blade, and one side of the second blade is also connected to another second blade through a third blade.

[0016] As an improvement to the areca nut processing equipment of the present invention, the areca nut stirring and coating equipment further includes a drive structure, the drive structure including a reversible motor and a transmission chain connected to the output shaft of the motor, the transmission chain being able to drive the stirring drum to rotate forward or in reverse.

[0017] As an improvement to the areca nut processing equipment of the present invention, the areca nut cooling equipment includes a second spreading mechanism, a second feeding mechanism, a first conveyor line capable of freely switching between cold air and hot air, a second conveyor line supplying cold air, a third conveyor line supplying cold air, and a loading mechanism. The temperature on the first conveyor line is higher than the temperature on the second conveyor line, and the temperature on the second conveyor line is higher than the temperature on the third conveyor line. The third conveyor line is connected to a refrigeration device. A first cover is provided above the second spreading mechanism, and a second cover is provided above the second feeding mechanism. Both the first cover and the second cover are connected to the hot air outlet of the refrigeration device through pipes. The hot air outlet of the refrigeration device is also connected to the areca nut roasting device through pipes.

[0018] As an improvement to the areca nut processing equipment of the present invention, the first conveyor line includes a fourth mesh chain conveyor belt, the second conveyor line includes a fifth mesh chain conveyor belt, and the third conveyor line includes a sixth mesh chain conveyor belt. A third guide plate for guiding areca nuts to the fifth mesh chain conveyor belt is provided near the transport end of the fourth mesh chain conveyor belt, and a fourth guide plate for guiding areca nuts to the sixth mesh chain conveyor belt is provided near the transport end of the sixth mesh chain conveyor belt.

[0019] Compared to existing technologies, this invention, through its ingenious structural design, not only allows for the uniform coating and spraying of areca nuts, but also facilitates easier cleaning of the inner walls, ensuring food hygiene and personnel safety. Furthermore, the side-mounted discharge port makes discharging extremely convenient, and the low drop height minimizes scratches on the areca nut surface, preserving the product's appearance. The three-layer hot air baking mechanism, with progressively decreasing temperatures, ensures uniform baking of the areca nut surface, even evaporation of internal moisture, and a dry, smooth surface. The three-layer conveyor line, with its gradually decreasing temperature, achieves staged cooling of the areca nuts. This invention enables fully automated areca nut cooling and packaging. Compared to previous manual handling methods, it represents a significant leap in efficiency and stability. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the baking structure and the mixing and coating equipment in this invention.

[0021] Figure 2 This is a front view schematic diagram of the baking structure and the mixing and coating equipment in this invention.

[0022] Figure 3 This is a top view schematic diagram of the baking structure and the mixing and coating equipment in this invention.

[0023] Figure 4 This is a schematic diagram of the hot air baking mechanism in this invention.

[0024] Figure 5 This is a three-dimensional structural diagram of the mixing and coating equipment in this invention.

[0025] Figure 6 This is one of the partially exploded structural diagrams of the mixing and coating equipment of the present invention.

[0026] Figure 7 This is the second partially exploded structural diagram of the mixing and coating equipment of the present invention.

[0027] Figure 8 This is the third partial perspective structural schematic diagram of the mixing and coating equipment of the present invention.

[0028] Figure 9 This is a side view of the mixing and coating equipment of the present invention.

[0029] Figure 10 This is a schematic diagram of the structure of the stirring blade in this invention.

[0030] Figure 11 This is a three-dimensional structural diagram of the cooling structure in this invention.

[0031] Figure 12 This is a front view schematic diagram of the cooling structure in this invention.

[0032] Figure 13 This is a side view of the cooling structure in this invention.

[0033] Figure 14 This is a schematic diagram of the structure of the first conveyor line, the second conveyor line, the third conveyor line, and the paving mechanism in this invention. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0035] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0036] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0037] like Figure 1-14 As shown, this invention provides a betel nut processing device, including a control system and a betel nut roasting device 100, a mixing and coating device 200, and a betel nut cooling device 300, all controlled by the control system and arranged sequentially. A weighing device 400 is installed between the betel nut roasting device 100 and the mixing and coating device 200. The control system quantitatively dispenses and sprays adhesive based on the weight of the betel nuts entering the mixing and coating device 200, coating the betel nuts with adhesive while the mixing and coating device 200 rotates. This invention first roasts the betel nuts to remove surface moisture, then weighs them and places them in the mixing and coating device 200. The control system calculates the weight of the adhesive corresponding to the betel nuts and sprays the adhesive while the betel nuts rotate. After coating, the betel nuts enter the betel nut cooling device 300 for cooling and packing, thus completing the betel nut processing. The entire process is highly automated, greatly reducing manpower, time, and space requirements. Furthermore, due to precise control, the thickness and uniformity of the adhesive coating on the betel nut surface can be controlled, improving product quality. A lifting device 500 is provided between the areca nut roasting equipment 100 and the weighing device 400 to lift the roasted areca nuts into the weighing device 400.

[0038] The areca nut roasting equipment 100 includes a frame 1 and a first feeding mechanism 10, a first spreading mechanism 2, a hot air roasting mechanism 3, and a discharging mechanism 4 sequentially arranged on the frame 1. The hot air roasting mechanism 3 includes a first hot air roasting mechanism 31, a second hot air roasting mechanism 32, and a third hot air roasting mechanism 33 arranged sequentially from top to bottom. The temperature inside the first hot air roasting mechanism 31 is higher than the temperature inside the second hot air roasting mechanism 32, and the temperature inside the second hot air roasting mechanism 32 is higher than the temperature inside the third hot air roasting mechanism 33. The end of the discharging mechanism 4 is connected to a coating and mixing device 20.

[0039] This invention provides a stable temperature control system that maintains a temperature of approximately 25°C in the third hot air baking mechanism 33, a temperature of 30-40°C in the second hot air baking mechanism 32, and a temperature of 75-80°C in the first hot air baking mechanism 31. This system ensures that after the areca nuts are spread, they are baked in a high-temperature environment of 80°C for 15 minutes, then in a hot air environment of 40°C to evaporate the moisture in the areca nuts for about 15 minutes, and finally in a room-temperature environment of 25°C to cool the surface slurry for about 15 minutes.

[0040] The first hot air baking mechanism 31 includes a first mesh conveyor belt 311 and an air heating and conveying mechanism; the second hot air baking mechanism 32 includes a second mesh conveyor belt 321; and the third hot air baking mechanism 33 includes a third mesh conveyor belt 331. A first guide plate 312 for guiding betel nuts to the second mesh conveyor belt 321 is provided near the transport end of the first mesh conveyor belt 311; and a second guide plate 322 for guiding betel nuts to the third mesh conveyor belt 331 is provided near the transport end of the second mesh conveyor belt 321. In use, areca nuts are fed from the spreading mechanism 2 and spread out. They then move to the right under the transport of the first mesh conveyor belt 311. During this process, the air-heated conveyor mechanism heats the areca nuts on the first mesh conveyor belt 311 at a high temperature. After heating, the areca nuts fall through the first guide plate 312 onto the second mesh conveyor belt 321, which has a temperature of approximately 40°C. In this 40°C hot air environment, the moisture in the areca nuts evaporates. They then fall from the second guide plate 322 onto the third mesh conveyor belt 331, where they cool at room temperature before being discharged from the unloading mechanism 4. The first guide plate 312 has a straight upper section and a sloping lower section, while the second guide plate 322 has a wider upper section and a narrower lower section.

[0041] In this invention, only the first mesh conveyor belt 311 needs to be heated. The second mesh conveyor belt 321 utilizes the residual heat of the first mesh conveyor belt 311, resulting in an even lower temperature. The third mesh conveyor belt 331 utilizes the residual heat of the second mesh conveyor belt 321, further reducing the temperature. This achieves a three-layer, step-by-step cooling effect, resulting in excellent baking performance. The entire process not only saves energy but also simplifies the structure while realizing stepped cooling baking.

[0042] The first hot air baking mechanism 31 is also connected to a constant temperature system 34 to ensure that the temperature inside the first hot air baking mechanism 31 is maintained at around 75~80℃.

[0043] The hot air baking mechanism 3 is also connected to a blower and an electric ball valve. The blower and the electric ball valve are used to adjust the appropriate temperature to ensure that the temperature inside the first hot air baking mechanism 31 is stable between 75 and 80°C.

[0044] The first spreading mechanism 2 includes a rotating shaft 21 mounted on the frame 1, a rotating plate 22 rotatably mounted on the rotating shaft 21, and a feeding cavity 23. The gap between the bottom of the rotating plate 22 and the feeding cavity 23 is 3cm-10cm to prevent the areca nuts from stacking, thereby ensuring that each areca nut passes through the first mesh conveyor belt 311 independently, so that each areca nut is fully roasted.

[0045] The second mesh conveyor belt 321 moves in the opposite direction to the first mesh conveyor belt 311 and the third mesh conveyor belt 331. The areca nuts enter from the left side of the first mesh conveyor belt 311, are baked at high temperature, and then fall from the right side of the first mesh conveyor belt 311 along the first guide plate 312 to the right side of the second mesh conveyor belt 321. After being baked by the hot air of the second mesh conveyor belt 321, they fall from the left side of the second mesh conveyor belt 321 along the second guide plate 322 to the left side of the third mesh conveyor belt 331. After being cooled at room temperature on the third mesh conveyor belt 331, they fall from the right side of the third mesh conveyor belt 331 into the feeding mechanism 4.

[0046] The first mesh conveyor belt 311, the second mesh conveyor belt 321 and the third mesh conveyor belt 331 are driven by the first motor 313, the second motor 323 and the third motor 332, respectively.

[0047] The first paving mechanism 2 is located at the feeding end of the first mesh conveyor belt 311, and the unloading mechanism 4 is located at the discharging end of the third mesh conveyor belt 331.

[0048] The feeding mechanism 4 includes a feeding cavity 41 and a feeding inclined plate 42 disposed in the feeding cavity 41. The roasted areca nuts are transported into the feeding cavity 41 by the feeding inclined plate 42, and then the roasted areca nuts are lifted into the coating and mixing equipment 20 by the lifting mechanism.

[0049] The feeding mechanism 10 is configured as an elevator, and one end of the feeding mechanism 10 is located above the paving mechanism 2. The betel nuts to be roasted can be transported to the first paving mechanism 2 through the feeding mechanism 10.

[0050] The areca nut mixing and coating equipment 200 includes a frame, a mixing drum 5 mounted on the frame, mixing blades 6 inside the mixing drum 5, an atomizing adhesive spraying structure 7 mounted on the frame that sprays atomized adhesive into the mixing drum 5, a discharge port 51 on the side wall of the mixing drum 5, and an openable cleaning window 52 on the front wall of the mixing drum 5. The cleaning window 52 facilitates cleaning of the mixing drum 5, allowing personnel to safely and easily enter the drum to clean even stubborn adhesive residue, thus improving cleaning efficiency.

[0051] The atomizing adhesive spraying structure 7 includes a spray pipe 71 and a plurality of nozzles 72 disposed on the spray pipe 71.

[0052] Several material throwing plates 53 are provided on the inner wall of the mixing drum 5, which helps to improve the uniformity of the adhesive coating.

[0053] The stirring blade 6 includes several first blades 61 that are connected at one end and have a free end, forming a fan shape, and second blades 62 disposed on one side of the first blades 61. One end of a second blade 62 is connected to another second blade 62, and one side of a second blade 62 is also connected to another second blade 62 via a third blade 63. In this embodiment, the first blade 61 has three fan-shaped blades, but it can also have four, five, or even more, and the shape can also be other. The first blade 61 and the second blade 62 connected to it are set at an obtuse angle.

[0054] Several first blades 61 divide the end face of the mixing drum into several equal parts. This structure of the mixing blades 6, combined with the atomizing adhesive spraying structure 7 and the rolling of the mixing drum 5, can achieve uniform adhesive coating of areca nuts.

[0055] The stirring blade 6 also includes a guide rod 64 for guiding the direction of the areca nut.

[0056] The areca nut mixing and coating equipment also includes a drive structure 8, which includes a reversible motor 81 and a transmission chain 82 connected to the output shaft of the motor 81. The transmission chain 82 can drive the mixing drum 5 to rotate forward or backward. When rotating forward, the areca nuts tumble inside the mixing drum 5 to achieve uniform coating. When the mixing drum 5 rotates backward, the areca nuts are discharged, completing the mixing and coating operation.

[0057] During operation, the mixing drum 5 rotates along with the areca nuts inside. During rotation, several nozzles 72 on the spray pipe 71 spray a mist of edible gum. This mist of edible gum adheres to the surface of the areca nuts, forming a thin, uniform coating. Because the areca nuts are constantly turned over by the combined action of the throwing plate 53 and the mixing drum 5, the entire surface of the areca nuts is coated with the gum. After this process, the areca nuts are discharged from the outlet 51 to the next process. Since the outlet 51 is located on the side of the mixing drum 5, the discharge drop height is relatively low, preventing scratches on the areca nut surface and ensuring the integrity of the product's appearance. When cleaning the inner wall of the mixing drum 5 is required, simply open the cleaning window 52 for easy cleaning by the staff.

[0058] In summary, this invention not only achieves uniform coating of areca nuts with adhesive, but also facilitates cleaning. Furthermore, the ingenious design of the discharge port 51 prevents the areca nut surface from being scratched during the feeding process, ensuring a high yield.

[0059] The areca nut cooling equipment 300 includes a frame and, sequentially arranged on the frame, a second spreading mechanism 9, a second feeding mechanism 11, a first conveyor line 12 capable of freely switching between cold and hot air, a second conveyor line 13 supplying cold air, a third conveyor line 14 supplying cold air, and a loading mechanism. The temperature on the first conveyor line 12 is higher than the temperature on the second conveyor line 13, and the temperature on the second conveyor line 13 is higher than the temperature on the third conveyor line 14. The temperature of the third conveyor line 14 is controlled within 16~20℃, the temperature of the second conveyor line 13 is controlled at 25℃, and the first conveyor line 12 may use both cold and hot air (30~35℃) depending on the product being processed. The coated areca nuts falling from the discharge port 51 directly into the second spreading mechanism 9.

[0060] The second paving mechanism 9 includes a rotating shaft 91 mounted on a frame, a rotating plate 92 rotatably mounted on the rotating shaft 91, and a feeding cavity 93. The gap between the bottom of the rotating plate 92 and the feeding cavity 93 is 3cm-10cm.

[0061] The first conveyor line 12 includes a fourth mesh conveyor belt 121, the second conveyor line 13 includes a fifth mesh conveyor belt 131, and the third conveyor line 14 includes a sixth mesh conveyor belt 141. A third guide plate 122 for guiding areca nuts to the fifth mesh conveyor belt 131 is provided near the end of the first mesh conveyor belt 311, and a fourth guide plate 132 for guiding areca nuts to the sixth mesh conveyor belt 141 is provided near the end of the fifth mesh conveyor belt 131. In use, areca nuts are fed from the second spreading mechanism 9 and spread out by it. Then, under the lifting action of the second feeding mechanism 11, they reach the fourth mesh conveyor belt 121. Under the transport of the fourth mesh conveyor belt 121, they move to the right. During this process, cold or hot air dries / cools the areca nuts on the fourth mesh conveyor belt 121. After being dried, the areca nuts fall onto the fifth mesh conveyor belt 131 through the third guide plate 122. The temperature of the fifth mesh conveyor belt 131 is about 25°C, which allows the areca nuts coated with rubber to continue to cool down. They then fall onto the sixth mesh conveyor belt 141 from the fourth guide plate 132 and are cooled at 16~20°C. Finally, they are loaded into cylinders in the cylinder loading mechanism.

[0062] The third conveyor line 14 is connected to a refrigeration device, which supplies cold air to the sixth mesh conveyor belt 141 to achieve a cooling effect. The refrigeration device includes an indoor unit and an outdoor unit 15. The air outlet of the refrigeration device (generally hot air) can provide hot air for the areca nut roasting equipment and also for the fourth mesh conveyor belt 121, thereby achieving energy saving and environmental protection and avoiding heat waste. A first cover 16 is set above the second paving mechanism 9, and a second cover 17 is set on the second feeding mechanism 11. Both the first cover 16 and the second cover 17 are connected to the hot air outlet of the refrigeration device (i.e., the air outlet of the outdoor unit 15) through pipes, thereby performing preliminary roasting on the areca nuts that have been coated with glue on the second paving mechanism 9 and the second feeding mechanism 11 to prevent sticking.

[0063] In this invention, only the cold air in the sixth mesh conveyor belt 141 needs to be cooled. The fifth mesh conveyor belt 131 utilizes the residual cooling from the sixth mesh conveyor belt 141, resulting in a higher temperature. The fourth mesh conveyor belt 121 utilizes the residual cooling from the fifth mesh conveyor belt 131, further increasing its temperature. During use, the coated areca nuts are transported from the fourth mesh conveyor belt 121 to the fifth mesh conveyor belt 131, and then to the sixth mesh conveyor belt 141, achieving a three-layer, step-by-step cooling effect and resulting in excellent cooling performance. The entire process not only saves energy but also simplifies the structure while achieving stepped cooling.

[0064] The fifth mesh conveyor belt 131 moves in the opposite direction to the fourth mesh conveyor belt 121 and the sixth mesh conveyor belt 141. The areca nuts enter from the left side of the fourth mesh conveyor belt 121, pass through the first conveyor line 12, and then fall from the right side of the fourth mesh conveyor belt 121 along the third guide plate 122 to the right side of the fifth mesh conveyor belt 131. After further cooling on the fifth mesh conveyor belt 131, they fall from the left side of the fifth mesh conveyor belt 131 along the fourth guide plate 132 to the left side of the sixth mesh conveyor belt 141. After further low-temperature cooling on the sixth mesh conveyor belt 141, they fall from the right side of the sixth mesh conveyor belt 141 into the loading mechanism.

[0065] The fourth mesh conveyor belt 121, the fifth mesh conveyor belt 131 and the sixth mesh conveyor belt 141 are driven by the first motor 123, the second motor 133 and the third motor 142 respectively. The three conveyor belts move independently and do not interfere with each other.

[0066] One end of the second feeding mechanism 11 is located at the feeding end of the first mesh conveyor belt 311, and the other end of the second feeding mechanism 11 is located below the second spreading mechanism 9; the loading mechanism is located at the discharge end of the sixth mesh conveyor belt 141. Thus, the function of the second spreading mechanism 9 can prevent the areca nuts from piling up, thereby ensuring that each areca nut passes through the fourth mesh conveyor belt 121 independently, so that each areca nut is fully cooled, ensuring the uniformity of the coating on the areca nut surface and improving the product yield.

[0067] The second feeding mechanism 11 is configured as an elevator, used to lift the areca nuts onto the fourth mesh conveyor belt 121.

[0068] The first conveyor line 12 is connected to a blower via a pipe to deliver hot air to the first conveyor line 12. The blower is connected to the hot air outlet of the refrigeration equipment via a pipe, thereby realizing the recycling of heat.

[0069] This invention enables fully automated high-temperature roasting of areca nuts, slow cooling of the outer layer of gum, evaporation of moisture, uniform coating, and slow cooling. Compared to the previous manual handling operations, efficiency and stability of areca nut processing have seen a qualitative leap. Manual handling and loading of areca nuts requires significant manpower, resources, time, and space. This invention saves on intermediate handling manpower and time costs, and also greatly reduces the area required. A manual line with 40 people can complete 11 cans of material per day (based on 2 shifts and 22 hours), with each can weighing approximately 1800 kg. This invention can complete the same 11 cans in 20 hours of continuous operation, requiring only 4 people to assist with the equipment (mainly checking equipment parameters, preventing abnormal alarms during production, and cleaning the equipment) to complete the daily workload of the manual line.

[0070] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A processing device for areca nuts, characterized in that: The system includes a control system and a areca nut roasting device, a mixing and coating device, and an areca nut cooling device, which are controlled by the control system and arranged in sequence. A weighing device is provided between the areca nut roasting device and the mixing and coating device. The control system dispenses and sprays adhesive according to the weight of the areca nuts entering the mixing and coating device, and coats the areca nuts with adhesive during the rotation of the mixing and coating device. The areca nut roasting equipment includes a first feeding mechanism, a first spreading mechanism, a hot air roasting mechanism, and a discharging mechanism arranged in sequence. The mixing and coating equipment includes a frame, a mixing drum mounted on the frame, mixing blades mounted inside the mixing drum, an atomizing spraying structure mounted on the frame and spraying atomized adhesive liquid into the mixing drum, a discharge port mounted on the side wall of the mixing drum, and an openable cleaning window mounted on the front wall of the mixing drum. The atomizing adhesive spraying structure includes a spray pipe and a plurality of nozzles disposed on the spray pipe; The stirring blade includes several first blades that are connected at one end and are free at the other end and are fan-shaped, and a second blade disposed on one side of the first blade. One end of the second blade is connected to another second blade, and one side of the second blade is also connected to another second blade through a third blade. Several material throwing plates are installed on the inner wall of the mixing drum; One end of each of the first blades divides the end face of the mixing drum into several equal parts; The areca nut cooling equipment includes a second spreading mechanism, a second feeding mechanism, a first conveyor line capable of freely switching between cold air and hot air, a second conveyor line supplying cold air, a third conveyor line supplying cold air, and a loading mechanism. The temperature on the first conveyor line is higher than the temperature on the second conveyor line, and the temperature on the second conveyor line is higher than the temperature on the third conveyor line. The third conveyor line is connected to a refrigeration device. A first cover is provided above the second spreading mechanism, and a second cover is provided above the second feeding mechanism. Both the first cover and the second cover are connected to the hot air outlet of the refrigeration device through pipes. The hot air outlet of the refrigeration device is also connected to the areca nut roasting device through pipes.

2. The areca nut processing equipment according to claim 1, characterized in that: The hot air baking mechanism includes a first hot air baking mechanism, a second hot air baking mechanism, and a third hot air baking mechanism arranged sequentially from top to bottom. The temperature inside the first hot air baking mechanism is higher than the temperature inside the second hot air baking mechanism, and the temperature inside the second hot air baking mechanism is higher than the temperature inside the third hot air baking mechanism.

3. The areca nut processing equipment according to claim 2, characterized in that: The first hot air baking mechanism includes a first mesh conveyor belt and an air heating and conveying mechanism; the second hot air baking mechanism includes a second mesh conveyor belt; and the third hot air baking mechanism includes a third mesh conveyor belt. A first guide plate for guiding betel nuts to the second mesh conveyor belt is provided near the transport end of the first mesh conveyor belt, and a second guide plate for guiding betel nuts to the third mesh conveyor belt is provided near the transport end of the second mesh conveyor belt.

4. The areca nut processing equipment according to claim 2, characterized in that: The hot air baking mechanism is also connected to a blower and an electric ball valve; the first hot air baking mechanism is also connected to a constant temperature system.

5. The areca nut processing equipment according to claim 1, characterized in that: The mixing and coating equipment also includes a drive structure, which includes a reversible motor and a transmission chain connected to the output shaft of the motor. The transmission chain can drive the mixing drum to rotate forward or in reverse.

6. The areca nut processing equipment according to claim 1, characterized in that: The first conveyor line includes a fourth mesh chain conveyor belt, the second conveyor line includes a fifth mesh chain conveyor belt, and the third conveyor line includes a sixth mesh chain conveyor belt. A third guide plate for guiding areca nuts to the fifth mesh chain conveyor belt is provided near the transport end of the fourth mesh chain conveyor belt, and a fourth guide plate for guiding areca nuts to the sixth mesh chain conveyor belt is provided near the transport end of the sixth mesh chain conveyor belt.

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