A fresh walnut kernel shelling device

Abstract

This invention discloses a device for peeling fresh walnut kernels, relating to the field of walnut kernel peeling technology. By heating fresh walnut kernels at high temperature for a short time, the walnut skin is heat-treated, reducing the impact of prolonged heating on the taste of the walnut kernels. After the walnut kernels are pre-treated at high temperature, the walnut kernels are kneaded and peeled using diamond abrasive, then polished and ground, and finally high-pressure washed to complete the peeling operation of fresh walnut kernels. This method has little impact on the taste of fresh walnut kernels and achieves excellent peeling results.

Description

Technical Field

[0001] This invention relates to the field of walnut kernel peeling technology, specifically to a device for peeling fresh walnut kernels. Background Technology

[0002] Walnuts, also known as Persian walnuts or walnuts, belong to the Juglandaceae family. Along with almonds, cashews, and hazelnuts, they are considered one of the world's four most famous dried fruits. Walnuts are rich in nutrients, containing 15-20 grams of protein per 100 grams, a relatively high amount of fat, 10 grams of carbohydrates, and essential trace elements and minerals such as calcium, phosphorus, and iron, as well as various vitamins including carotene and riboflavin. They are beneficial to human health and are a popular nut among the general public.

[0003] Walnut kernels are covered with a thin walnut skin. The walnut skin on fresh walnut kernels is milky white, while the walnut skin on dried walnut kernels is usually brown. Walnut skin has a bitter taste and is usually removed during processing to improve the taste. Common methods for removing the walnut skin include manual removal and mechanical wet peeling. Manual peeling is inefficient and not suitable for large-scale production. Mechanical wet peeling usually involves steaming (soaking or blanching) or using chemicals (such as alkali) to remove the walnut skin. When steaming to remove the walnut skin from fresh walnuts, the walnut kernel is also affected by the steam, which often damages the nutritional value and taste of the walnut kernel. The use of alkali and other chemical agents will cause some degree of nutrient loss, softening of the walnut kernel, and alkaline chemical residues due to the action of the alkali, directly affecting the nutrition and taste of walnut products. At the same time, the discharge of alkali will also cause environmental pollution.

[0004] Utility model patent CN 212661019 U discloses a dry peeling machine for walnut kernels, including a housing assembly, a transmission mechanism, and a sandblasting device. High-pressure air carries quartz sand particles, which are evenly sprayed onto walnut kernels laid flat on a roller. As the roller rotates, the walnut kernels tumble continuously, ensuring that every part of the kernel comes into contact with the quartz sand particles, thus guaranteeing the peeling effect. In this patent, before peeling the walnut kernels, they are heated uniformly. During this heating process, both the kernel and the skin are heated simultaneously at the same temperature. However, this continuous heating can affect the texture of the kernels. The patent also removes the skin by rapidly striking the surface of the walnut kernels with quartz sand. However, for fresh walnut kernels, the skin adheres strongly to the kernel. While the quartz sand can damage the skin, it is difficult to completely separate the skin from the kernel using only the sand, leaving some skin residue. Summary of the Invention

[0005] The main objective of this invention is to provide a device for peeling fresh walnut kernels, which solves the problems that continuous heating during the peeling process of fresh walnut kernels can easily affect the taste of the walnut kernels, and that some walnut skin can easily remain on the walnut kernels.

[0006] To achieve the above objectives, the present invention provides a device for peeling fresh walnut kernels, comprising:

[0007] A circulating heating assembly includes a first support member inclined relative to a horizontal plane, a second support member disposed within a first mounting member, and a first transmission member disposed within the second support member; a first space is provided between the first and second support members; a second space is provided inside the second support member; a first heating element and a second heating element are disposed within the first space; a feed hopper communicating with the second space is provided on the first support member; channels communicating with the first and second spaces are arranged on the outer walls of the second support member near both ends; the first transmission member drives the second heating element to move within the second space; the second heating element circulates within the first and second spaces by passing through the channels;

[0008] The grinding and peeling assembly includes a rotating hopper communicating with a second space, a grinding cylinder communicating with the rotating hopper, a grinding disc disposed inside the grinding cylinder, and a second transmission component disposed on the grinding cylinder; the grinding cylinder contains a grinding disc; the grinding disc is provided with a grinding brush; the second transmission component is connected to the grinding disc to drive the grinding disc to rotate inside the grinding cylinder;

[0009] The fine peeling assembly includes a rotating cylinder and a third transmission component connected to the rotating cylinder; the third transmission component drives the rotating cylinder to rotate; the inner wall of the rotating cylinder is provided with a spiral-shaped first guide component, and a connecting pipe is provided between the rotating cylinder and the grinding cylinder; a guiding space is formed between the first guide component and the inner wall of the rotating cylinder; the outer wall of the rotating cylinder away from the connecting pipe is provided with a sieve hole communicating with the guiding space; a recycling trough is provided below the sieve hole.

[0010] The return assembly includes support members spaced apart and arranged circumferentially on the rotating cylinder, a recovery cylinder arranged on the support members, and a recovery pipe connecting the recovery cylinder and the grinding cylinder; the outer wall of the recovery cylinder moves within the recovery trough, and the recovery pipe is provided with a recovery channel that cooperates with the recovery cylinder;

[0011] The cleaning and drying assembly includes a cleaning tank, a fourth transmission component communicating with a guide space, a first cleaning component and a first drying component disposed above the fourth transmission component, and a collection tank communicating with the fourth transmission component.

[0012] The control component includes a controller electrically connected to the first transmission component, the second transmission component, the third transmission component, and the fourth transmission component; the controller is used to control the first transmission component, the second transmission component, the third transmission component, and the fourth transmission component to open or close according to external commands.

[0013] As a further improvement of the present invention, both the first support member and the second support member are long cylindrical structures; the first support member is sleeved on the outer wall of the second support member; the outer diameter of the second support member is smaller than the inner diameter of the first support member to form a first space, and holes are provided at intervals along the circumference on the outer walls of the two end sections of the second support member to form channels; the first heating element is arranged in a spiral shape on the inner wall of the first support member.

[0014] As a further improvement of the present invention, the second transmission component includes a first swinging component disposed above the grinding cylinder and a first rotating component disposed on the first swinging component; the first swinging component drives the first rotating component to reciprocate above the grinding disc; the first rotating component is provided with a first connecting rod; the first connecting rod is connected to the edge of the grinding disc so that there is a gap between the center of the grinding disc and the center during grinding.

[0015] As a further improvement of the present invention, the bottom end of the grinding cylinder is provided with a grinding protrusion, and the grinding cylinder is also provided with a vibrator.

[0016] As a further improvement of the present invention, the rotating cylinder is horizontally arranged, a first toothed ring is provided on the outer wall of the rotating cylinder, and a protruding post is provided on the inner wall of the rotating cylinder; the third transmission member meshes with the first toothed ring to drive the rotating cylinder to rotate; the first transmission member is a plate-shaped structure protruding from the inner wall of the rotating cylinder.

[0017] As a further improvement of the present invention, the recycling cylinder is an arc shape with an internal storage space. The closed end of the recycling cylinder is connected to the support member, and the open end of the recycling cylinder is away from the support member. The opening ends of different recycling cylinders face the same direction.

[0018] As a further improvement of the present invention, the recovery tube is inclined to the horizontal plane, and the plane where the lowest point of the center of the recovery tube is located is higher than the plane where the end face of the grinding cylinder is located.

[0019] As a further improvement of the present invention, the fourth transmission component includes a first conveyor belt that is inclined and horizontally disposed in the cleaning pool, a first baffle disposed on both sides of the first conveyor belt, and a second baffle disposed at intervals on the first conveyor belt; the first conveyor belt is provided with water passage holes.

[0020] As a further improvement of the present invention, the specific method of using the fresh walnut kernel peeling device of the present invention is as follows:

[0021] Step 1: Use the high-temperature second heating element in the first space to heat and rub the walnut kernels for pretreatment;

[0022] Step 2: Use the grinding drum and grinding disc to knead and peel the walnut kernels;

[0023] Step 3: The rotating cylinder and the first guide component polish and grind the walnut kernels to remove their skins;

[0024] Step 4: The first cleaning unit performs high-pressure cleaning and peeling on the walnut kernels, removing impurities from the surface of the kernels;

[0025] Step 5: The first drying unit dries the walnut kernels.

[0026] The beneficial effects of this invention are reflected in:

[0027] By heating fresh walnut kernels at high temperatures for a short time, the walnut skin is heat-treated, reducing the impact of prolonged heating on the taste of the walnut kernels. After the walnut kernels are pre-treated at high temperatures, they are kneaded and peeled using diamond abrasive, then polished and ground, and finally high-pressure washed to complete the peeling process of fresh walnut kernels. This method has little impact on the taste of fresh walnut kernels and achieves excellent peeling results. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a fresh walnut kernel peeling device according to the present invention;

[0029] Figure 2 This is a schematic diagram of the circulating heating component structure of a fresh walnut kernel peeling device according to the present invention;

[0030] Figure 3 This is a schematic diagram of the grinding and peeling component of a fresh walnut kernel peeling device according to the present invention;

[0031] Figure 4 This is a schematic diagram of the fine peeling component structure of a fresh walnut kernel peeling device according to the present invention;

[0032] Figure 5 This is a schematic diagram of the rinsing and drying components of a fresh walnut kernel peeling device according to the present invention;

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Circulating heating assembly; 101. First support component; 102. Second support component; 103. First transmission component; 104. First space; 105. Second space; 106. First heating component; 107. Feed hopper; 108. Exhaust pipe; 109. Connecting wall rod; 110. First motor; 111. Discharge pipe; 2. Grinding and peeling assembly; 201. Rotary hopper; 202. Grinding cylinder; 203. Grinding disc; 204. Support rod; 205. Sliding sleeve; 206. First sliding rod; 207. First push rod; 208. Cam; 209. Second motor; 210. First connecting rod; 211. Support plate; 212. Third motor; 213. Connecting pipe; 214. 215. Vibrator; 3. Grinding ridge; 4. Fine peeling assembly; 501. Rotating cylinder; 302. First guide; 303. Guide space; 304. First gear ring; 305. First gear; 306. Fourth motor; 307. Screen hole; 308. Discharge port; 309. Recovery tank; 310. Baffle; 4. Return assembly; 401. Recovery pipe; 402. Support; 403. Recovery cylinder; 5. Washing and drying assembly; 501. Washing tank; 502. First washing component; 503. First drying component; 504. First conveyor belt; 505. First baffle; 506. Second baffle; 507. Water passage hole; 508. Water pipe; 509. Air duct; 6. Discharge trough. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are merely some, not all, of the embodiments of this invention. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0036] In one embodiment, see Figure 1 The present invention provides a device for peeling fresh walnut kernels, comprising a circulating heating component 1, a grinding and peeling component 2, a fine peeling component 3, a return component 4, a rinsing and drying component 5, and a control component.

[0037] Among them, see Figure 2The circulating heating assembly 1 includes a first support member 101 inclined relative to the horizontal plane, a second support member 102 disposed within the first support member, and a first transmission member 103 disposed within the second support member 102. A first space 104 is provided between the first support member 101 and the second support member 102. A second space 105 is provided inside the second support member 102. A first heating member 106 and a second heating member are disposed within the first space 104. A feed hopper 107 communicating with the second space 105 is provided on the first support member 101. A channel communicating with the first space 104 and the second space 105 is arranged on the outer wall of the second support member 102 near both ends. The first transmission member 103 drives the second heating member to move within the second space 105. The second heating member circulates within the first space 104 and the second space 105 through the channel.

[0038] See Figure 3 The grinding and peeling assembly 2 includes a rotating hopper 201 communicating with the second space 105, a grinding cylinder 202 communicating with the rotating hopper 201, a grinding disc 203 disposed inside the grinding cylinder 202, and a second transmission component disposed on the grinding cylinder 202. The grinding cylinder 202 is provided with grinding sand, and the grinding disc 203 is provided with a grinding brush. The second transmission component is connected to the grinding disc 203 to drive the grinding disc 203 to rotate inside the grinding cylinder 202.

[0039] See Figure 4 The fine peeling component 3 includes a rotating cylinder 301 and a third transmission component connected to the rotating cylinder 301. The third transmission component drives the rotating cylinder 301 to rotate. The inner wall of the rotating cylinder 301 is provided with a spiral-shaped first guide 302. A connecting pipe 213 is provided between the rotating cylinder 301 and the grinding cylinder 202. A guiding space 303 is formed between the first guide 302 and the inner wall of the rotating cylinder 301. A sieve hole 307 communicating with the guiding space 303 is provided on the outer wall of the rotating cylinder 301 away from the connecting pipe 213. A recycling trough 309 is provided below the sieve hole 307.

[0040] See Figure 4 The return assembly 4 includes a support member 402 spaced apart and arranged circumferentially on the rotating cylinder 301, a recovery cylinder 403 arranged on the support member 402, and a recovery pipe 401 connecting the recovery cylinder 403 and the grinding cylinder 202. The outer wall of the recovery cylinder 403 moves within the recovery groove 309, and the recovery pipe 401 is provided with a recovery channel that cooperates with the recovery cylinder 403.

[0041] See Figure 5 The cleaning and drying assembly includes a cleaning tank 501, a fourth transmission component communicating with a guide space 303, a first cleaning component 502 and a first drying component 503 disposed above the fourth transmission component, and a collection tank communicating with the fourth transmission component.

[0042] The control component includes a controller electrically connected to the first transmission component 103, the second transmission component, the third transmission component, and the fourth transmission component. The controller is used to control the first transmission component 103, the second transmission component, the third transmission component, and the fourth transmission component to open or close according to external commands.

[0043] Fresh walnut skins adhere strongly to walnut kernels. Drying the walnut skins by heating helps separate the skins from the kernels. However, prolonged heating can degrade the texture of the kernels. Therefore, shortening the heating time of the walnut skins can reduce the impact of heating on the texture of the kernels.

[0044] Preferably, the grinding cylinder 202 contains grinding sand.

[0045] Preferably, both the second heating element and the grinding sand are made of corundum. The corundum is first heated by the first heating element 106. The fresh walnut kernels come into instantaneous contact with the heated corundum, which has a high temperature. The high temperature acts on the walnut skin instantly, reducing the impact of high temperature on the walnut kernels, shortening the heating time of the walnut kernels, and maximizing the taste of the walnut kernels.

[0046] For details, see Figure 2 Both the first support member 101 and the second support member 102 are long cylindrical structures. The first support member 101 is sleeved on the outer wall of the second support member 102. The outer diameter of the second support member 102 is smaller than the inner diameter of the first support member 101 to form a first space 104. Holes are provided at intervals along the circumference on the outer wall of both ends of the second support member 102 to form channels. The first heating element 106 is arranged in a spiral shape on the inner wall of the first support member 101.

[0047] Preferably, the second carrier 102 has a hollow interior forming a second space 105, the first transmission member 103 adopts an existing spiral conveyor shaft, the outer wall of the spiral conveyor shaft is provided with spiral conveyor blades, and a first motor 110 connected to the spiral conveyor shaft is provided outside the first carrier 101.

[0048] Preferably, the first heating element 106 is a heating wire that is powered by an external power source.

[0049] Preferably, the first support member 101 is further provided with a first frame on its exterior, the first frame being used to support the first support member 101 and the first motor 110.

[0050] Preferably, the end of the second support member 102 away from the feed hopper 107 is longer than the first support member 101, and a sealing plate is provided on the outer wall of the second support member 102. The sealing plate is connected to the end of the first support member 101, so that the first space 104 is closed.

[0051] Preferably, the second support member 102 has an opening at one end near the first motor 110, and there is a gap between the end of the opening of the second support member 102 and the end of the first support member 101. A connecting wall rod 109 is provided between the outer wall of the second support member 102 and the inner wall of the first support member 101.

[0052] In the above configuration, the first motor 110 drives the screw conveyor shaft to rotate, thereby conveying fresh walnut kernels that enter the second space 105 through the feed inlet into the second carrier 102. The first heating element 106 generates high temperature after being energized, heating the corundum in the first space 104. The heated corundum comes into contact with the walnut skin on the fresh walnut kernels, and the instantaneous high temperature bakes the walnut skin, making it easier to separate from the walnut kernels. As the first transmission element 103 conveys, the corundum and walnut kernels move within the second space 105. The corundum rubs against the walnut skin, pre-treating the walnut kernels by removing their skin. The rotation speed of the first motor 110 is controlled by the first transmission element 103. The conveying speed of the moving part 103 controls the contact time between the walnut kernel and the corundum, thus controlling the heating time. Alternatively, the contact time between the walnut kernel and the corundum can be controlled by controlling the length of the second carrier 102. The walnut kernel, which moves with the first moving part 103, eventually detaches from the second carrier 102 and enters the grinding and peeling assembly. The corundum in the second space 105 passes through the channel back into the first channel and is heated. In this way, the separation of the walnut kernel and the corundum and the recycling of the corundum are achieved. The corundum flows back to the opening of the second carrier 102. Since there is a gap between the second carrier 102 and the first carrier 101, it is easy for the corundum to accumulate, thus facilitating the conveying.

[0053] Further, see Figure 2 The outer wall of the first support member 101, which is away from the feed hopper 107, is also provided with an exhaust pipe 108 that communicates with the second space 105.

[0054] Preferably, the exhaust pipe 108 is located at the end of the second support member 102 that extends beyond the first support member 101. During the heating of the diamond abrasive, the water vapor in the second space 105 can be discharged, thereby reducing the pressure in the second space 105.

[0055] Preferably, the second support member 102 is provided with a discharge pipe 111 at the end that extends beyond the first support member 101, and the discharge pipe 111 is located above the transfer hopper 201.

[0056] Preferably, both the feed hopper 107 and the transfer hopper 201 are funnel-shaped with one end open. The smaller end of the transfer hopper 201 is equipped with a solid material valve. The solid material valve adopts an existing structure, including a valve plate, a rotating shaft, and a drive motor. The drive motor drives the rotating shaft to rotate, thereby causing the valve plate to flip and open the transfer hopper 201.

[0057] Further, see Figure 2 The second transmission component includes a first swing component disposed above the grinding cylinder 202 and a first rotating component disposed on the first swing component. The first swing component drives the first rotating component to reciprocate above the grinding disc 203. The first rotating component is provided with a first connecting rod 210, which is connected to the edge of the grinding disc 203 so that there is a gap between the center of the grinding disc 203 and the center during grinding.

[0058] Preferably, a second frame is provided below the grinding cylinder 202. The first swinging component includes an "L"-shaped support rod 204, a first slide rod 206 slidably disposed on the support rod 204, and a second motor 209 disposed on the support rod 204. A cam 208 is provided on the output end of the second motor 209. A first push rod 207 is rotatably disposed on the cam 208. The first push rod 207 and the first slide rod 206 are rotatably connected by a pin. One end of the support rod 204 is connected to the second frame, and the other end is located above the grinding cylinder 202.

[0059] Preferably, the end of the support rod 204 located above the grinding cylinder 202 is provided with a sliding sleeve 205, and the first sliding rod 206 is slidably disposed in the sliding sleeve 205.

[0060] Preferably, the first rotating component includes a first connecting rod 210 connected to the first slide rod 206, a support plate 211 provided on the first connecting rod 210, the support plate 211 being connected to the grinding disc 203, and a third motor 212 connected to the first connecting rod 210 provided on the first slide rod 206.

[0061] Preferably, the diameter of the grinding disc 203 is smaller than the diameter of the grinding cylinder 202.

[0062] Driven by the second motor 209, the cam 208 rotates, causing the first slide rod 206 to reciprocate within the slide sleeve 205. This, in turn, drives the third motor 212 and the grinding disc 203 to reciprocate within the grinding cylinder 202. The second connecting rod creates a gap between the center of the grinding disc 203 and the center of the grinding cylinder 202. Simultaneously, under the operation of the third motor 212, the grinding disc 203 rotates within the grinding cylinder 202. After being driven, the grinding disc 203 undergoes both rotation and reciprocating motion within the grinding cylinder 202, causing the grinding disc 203 to knead the walnut kernels within the grinding cylinder 202. Combined with the diamond powder within the grinding disc 203, this further removes the walnut skin.

[0063] Further, see Figure 3 The bottom end of the grinding cylinder 202 is provided with a grinding protrusion 215, and the grinding cylinder 202 is also provided with a vibrator 214.

[0064] Preferably, the grinding protrusion 215 is an arc-shaped line radiating outward from the center of the grinding cylinder 202. The setting of the grinding protrusion 215 and the vibrator 214 increases the friction between the walnut skin and the diamond powder during the walnut skin removal process, thereby improving the skin removal effect.

[0065] Preferably, the bottom end of the grinding cylinder 202 is provided with a discharge port, and a solid material valve is also provided at the discharge port.

[0066] Preferably, the grinding brush is a steel wire brush, and the length of the grinding brush is between 3cm and 6cm.

[0067] It should be noted that the vibrator 214 and the solid material valve both adopt existing structures, and no structural improvements are made to them in this application.

[0068] Further, see Figure 4 The rotating cylinder 301 is horizontally arranged. A first toothed ring 304 is provided on the outer wall of the rotating cylinder 301. A third transmission component meshes with the first toothed ring 304 to drive the rotating cylinder 301 to rotate. A protruding post is also provided on the inner wall of the rotating cylinder 301. The first transmission component 103 is a plate-shaped structure protruding from the inner wall of the rotating cylinder 301.

[0069] Preferably, the rotating cylinder 301 is a hollow cylinder with openings at both ends. A third frame is provided below the rotating cylinder 301. One end of the connecting pipe 213 is connected to the discharge port, and the other end is located inside the open end of the rotating cylinder 301.

[0070] Preferably, the third transmission component includes a fourth motor 306, which is mounted on the third frame. The output end of the fourth motor 306 is provided with a first gear 305, which meshes with a first gear ring 304.

[0071] Preferably, the protruding post is disposed within the guide space 303, and the protruding post is a circular spherical structure.

[0072] Preferably, the outer wall of the rotating cylinder 301 away from the connecting pipe 213 is provided with a discharge port 308 that communicates with the tail end of the guide space 303.

[0073] Preferably, the recycling tank 309 is a semi-circular trough structure, and baffles 310 are symmetrically provided at the port of the recycling tank 309. The size between the baffles 310 is larger than the size of the space where the sieve hole 307 is located, so that the space below the sieve hole 307 is completely covered, so that the diamond sand in the rotating cylinder 301 is completely collected by the recycling tank 309 after leaking out through the sieve hole 307.

[0074] During the rotation of the rotating drum 301, the corundum and walnut kernels are rotated. Under the friction inside the rotating drum 301, the corundum polishes and grinds the surface of the walnut kernels, causing the walnut skin to detach from the kernels. Under the guidance of the first guide 302, the corundum passes through the sieve hole 307 and falls into the recycling tank 309, while the walnut kernels pass through the discharge port 308 and enter the next process.

[0075] Further, see Figure 4 The recycling cylinder 403 is an arc shape with an internal storage space. The closed end of the recycling cylinder 403 is connected to the support member 402, and the open end of the recycling cylinder 403 is away from the support member 402. The opening ends of different recycling cylinders 403 face the same direction.

[0076] Preferably, the support member 402 is a rod-shaped structure that can be connected to the rotating cylinder 301 by welding, and the opening ends of different recycling cylinders 403 face clockwise.

[0077] Preferably, the inner diameter of the recycling tank 309 is larger than the outer diameter of the recycling cylinder 403, and when the recycling cylinder 403 is located inside the recycling tank 309, the two are in a clearance fit.

[0078] Further, see Figure 1 The recovery pipe 401 is inclined to the horizontal plane, and the plane where the lowest point of the center of the recovery pipe 401 is located is higher than the plane where the end face of the grinding cylinder 202 is located.

[0079] Preferably, the inside of the recovery tube 401 is hollow to form a recovery channel, and the recovery tube 401 is also provided with a funnel-shaped recovery hopper, the edge of which is close to the edge of the movement trajectory of the recovery cylinder 403.

[0080] Preferably, the edge of the recovery hopper is 1cm-3cm away from the edge of the movement trajectory of the recovery cylinder 403.

[0081] Preferably, the end of the recovery tube 401 away from the recovery cylinder 403 is located above the grinding cylinder 202.

[0082] The recycling cylinder 403 rotates with the rotating cylinder 301, loading the diamond powder in the recycling tank 309 into the recycling cylinder 403. When the opening of the recycling cylinder 403 is facing downwards, the diamond powder is poured out and falls into the recycling hopper. It then enters the grinding cylinder 202 along the recycling channel, allowing the diamond powder to be recycled. This fully utilizes the rotational potential energy of the rotating cylinder 301, simplifies the structure, and improves efficiency.

[0083] Further, see Figure 5 The fourth transmission component includes a first conveyor belt 504 that is inclined and horizontally arranged in the cleaning tank 501, a first baffle 505 arranged on both sides of the first conveyor belt 504, and a second baffle 506 arranged at intervals on the first conveyor belt 504. The first conveyor belt 504 is provided with water passage holes 507.

[0084] Preferably, a feeding trough 6 is inclinedly provided at the feeding port 308, and the end of the feeding trough 6 away from the feeding port 308 is located above the lowest point of the first conveyor belt 504.

[0085] Preferably, the fourth transmission component also includes a fifth motor, rotating shafts symmetrically arranged in the cleaning tank 501, a second gear on the rotating shaft, a second rack on the first conveyor belt 504 that meshes with the second gear, the fifth motor being connected to one of the rotating shafts, and the fourth transmission component having a common belt drive structure.

[0086] Preferably, the first cleaning component 502 includes a high-pressure nozzle, a water pipe 508, and a water pump. The water pipe 508 connects the high-pressure nozzle to the water pump. The high-pressure nozzle is connected to the cleaning tank 501 through a connecting frame. The high-pressure nozzle is located in the middle of the first conveyor belt 504. Several high-pressure nozzles can be set at intervals to increase the spray coverage area.

[0087] Preferably, the first drying component 503 includes an air duct 509 and a fan. The fan is connected to the air duct 509, and the air outlet of the air duct 509 is located near the highest point of the first conveyor belt 504, so that the walnut kernels are air-dried after being sprayed with high-pressure water.

[0088] Preferably, the controller is electrically connected to the first motor 110, the second motor 209, the third motor 212, the fourth motor 306, the fifth motor, the drive motor in the solid material valve, the water pump, and the fan, respectively.

[0089] It should be noted that the controller in this embodiment focuses on the control principle of each transmission component and electrical element. Its structure is not the focus of this embodiment and is existing technology. Therefore, the structure of the controller will not be described in detail.

[0090] In this embodiment, fresh walnut kernels are poured into the feed hopper 107, and then enter the second space 105 to come into contact with the heated diamond powder in the second space 105. Under the conveying of the spiral conveyor blades, the kernels move in the second space 105. The high-temperature diamond powder fully contacts the outer surface of the walnut kernels, providing instantaneous high temperature to the walnut skin, thereby facilitating the separation of the walnut skin from the kernels. As the spiral conveyor blades convey the kernels, the diamond powder wraps and heats every corner of the walnut skin. At the same time, friction is generated between the diamond powder and the walnut skin during the movement, which pre-treats the peeling of the walnut kernels.

[0091] As the walnut kernels move, they move out of the second space 105 and into the grinding cylinder 202. The diamond powder in the second space 105 returns to the first space 104 through the holes on the second support member 102, thus realizing the recycling of the diamond powder in the circulating heating component 1.

[0092] The walnut kernels leaving the second space 105 are temporarily stored in the transfer hopper 201. After the walnut kernels in the grinding cylinder 202 have been ground and peeled, they are poured back into the grinding cylinder 202 for further peeling. The walnut kernels in the grinding cylinder 202 move within the grinding cylinder 202 under the action of the grinding disc 203. The grinding disc 203 moves and rotates within the grinding cylinder 202, thus kneading the walnut kernels. Combined with the diamond abrasive in the grinding cylinder 202, the walnut skin is further separated from the walnut kernels. The diamond abrasive fills the space between the grinding brush and the bottom of the grinding cylinder 202, increasing the friction with the walnut skin. While peeling the walnut kernels, it also prevents the grinding disc 203 from squeezing the walnut kernels and causing them to break.

[0093] The ground walnut kernels and diamond grit in the grinding cylinder 202 enter the rotating cylinder 301 through the connecting pipe 213. The rotating cylinder 301 rotates, causing the walnut kernels and diamond grit to rotate, further polishing and grinding the surface of the walnut kernels and removing the walnut skin. The walnut kernels with the skin removed enter the first conveyor belt 504 along the guide space 303. The diamond grit falls into the recycling trough 309 and is then carried by the recycling cylinder 403 into the recycling channel. The diamond grit then enters the grinding cylinder 202 along the recycling channel, realizing the recycling of the diamond grit in the grinding cylinder 202. The first baffle 505 surrounds the first... On both sides of the conveyor belt 504, the second baffle 506 forms steps on the first conveyor belt 504 to facilitate the storage of walnut kernels and to move the walnut kernels. As the walnut kernels move with the first conveyor belt 504, high-pressure nozzles spray high-pressure water to remove the walnut skin from the surface of the walnut kernels again, and at the same time remove impurities such as emery and debris from the surface of the walnut kernels to ensure the cleanliness of the walnut kernels. The water passage holes 507 on the first conveyor belt 504 can facilitate the flow of water into the washing pool 501. After washing, the walnut kernels reach the air duct 509, and the air blown out of the air duct 509 dries the walnut kernels.

[0094] The following is a method for removing the walnut skin using a fresh walnut kernel peeling device according to the present invention:

[0095] Step 1: Use the high-temperature second heating element in the first space 104 to heat and rub the walnut kernels for pretreatment;

[0096] Step 2: Grinding cylinder 202 and grinding disc 203 are used to knead and peel the walnut kernels;

[0097] Step 3: The rotating cylinder 301 and the first guide component 302 polish and grind the walnut kernels to remove their skins;

[0098] Step 4: The first cleaning unit 502 performs high-pressure cleaning and peeling on the walnut kernels to remove impurities from the surface of the kernels;

[0099] Step 5: The first drying unit 503 dries the walnut kernels.

[0100] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for peeling fresh walnut kernels, characterized in that, include: The circulating heating assembly (1) includes a first support member (101) inclined relative to the horizontal plane, a second support member (102) disposed within the first support member, and a first transmission member (103) disposed within the second support member (102); a first space (104) is provided between the first support member (101) and the second support member (102); a second space (105) is provided inside the second support member (102); a first heating element (106) and diamond abrasive are disposed in the first space (104); a feed hopper (107) communicating with the second space (105) is provided on the first support member (101); holes are provided circumferentially on the outer walls of the two end sections of the second support member (102) to form a channel communicating with the first space (104) and the second space (105); the first transmission member (103) drives the diamond abrasive to move within the second space (105); the diamond abrasive circulates within the first space (104) and the second space (105) through the channel; The grinding and peeling assembly (2) includes a rotating hopper (201) communicating with a second space (105), a grinding cylinder (202) communicating with the rotating hopper (201), a grinding disc (203) disposed inside the grinding cylinder (202), and a second transmission component disposed on the grinding cylinder (202); the grinding cylinder (202) is provided with a grinding disc (203); the grinding disc (203) is provided with a grinding brush; the second transmission component is connected to the grinding disc (203) to drive the grinding disc (203) to rotate inside the grinding cylinder (202); The fine peeling assembly (3) includes a rotating cylinder (301) and a third transmission component connected to the rotating cylinder (301); the third transmission component drives the rotating cylinder (301) to rotate; a spiral-shaped first guide (302) is provided on the inner wall of the rotating cylinder (301), and a connecting pipe (213) is provided between the rotating cylinder (301) and the grinding cylinder (202); a guiding space (303) is formed between the first guide (302) and the inner wall of the rotating cylinder (301); a sieve hole (307) communicating with the guiding space (303) is provided on the outer wall of the rotating cylinder (301) away from the connecting pipe (213); a recycling trough (309) is provided below the sieve hole (307). The return assembly (4) includes a support member (402) spaced apart and circumferentially arranged on the rotating cylinder (301), a recovery cylinder (403) arranged on the support member (402), and a recovery pipe (401) connecting the recovery cylinder (403) and the grinding cylinder (202); the outer wall movement trajectory of the recovery cylinder (403) is located in the recovery groove (309), and the recovery pipe (401) is provided with a recovery channel that cooperates with the recovery cylinder (403); The cleaning and drying assembly includes a cleaning tank (501), a fourth transmission component communicating with a guide space (303), a first cleaning component (502) and a first drying component (503) disposed above the fourth transmission component, and a collection trough communicating with the fourth transmission component; the fourth transmission component includes a first conveyor belt (504) disposed at an inclination and horizontal plane in the cleaning tank (501), a first baffle (505) disposed on both sides of the first conveyor belt (504), and a second baffle (506) disposed at intervals on the first conveyor belt (504); the first conveyor belt (504) is provided with water passage holes (507); The control component includes a controller electrically connected to the first transmission member (103), the second transmission member, the third transmission member, and the fourth transmission member; the controller is used to control the first transmission member (103), the second transmission member, the third transmission member, and the fourth transmission member to open or close according to external commands.

2. The device for peeling fresh walnut kernels according to claim 1, characterized in that: The first support member (101) and the second support member (102) are both long cylindrical structures; the first support member (101) is sleeved on the outer wall of the second support member (102); the outer diameter of the second support member (102) is smaller than the inner diameter of the first support member (101) to form a first space (104); the first heating element (106) is spirally arranged on the inner wall of the first support member (101).

3. The device for peeling fresh walnut kernels according to claim 2, characterized in that: The second transmission component includes a first swing component disposed above the grinding cylinder (202) and a first rotating component disposed on the first swing component; the first swing component drives the first rotating component to reciprocate above the grinding disc (203); the first rotating component is provided with a first connecting rod (210); the first connecting rod (210) is connected to the edge of the grinding disc (203) so that there is a gap between the center of the grinding disc (203) and the center during grinding.

4. The device for peeling fresh walnut kernels according to claim 3, characterized in that: The bottom end of the grinding cylinder (202) is provided with a grinding protrusion (215), and the grinding cylinder (202) is also provided with a vibrator (214).

5. The device for peeling fresh walnut kernels according to claim 4, characterized in that: The rotating cylinder (301) is horizontally arranged, and a first toothed ring (304) is provided on the outer wall of the rotating cylinder (301), and a protruding post is also provided on the inner wall of the rotating cylinder (301); the third transmission member meshes with the first toothed ring (304) to drive the rotating cylinder (301) to rotate; the first transmission member (103) is a plate-shaped structure protruding from the inner wall of the rotating cylinder (301).

6. The device for peeling fresh walnut kernels according to claim 5, characterized in that: The recycling cylinder (403) is an arc shape with an internal storage space. The closed end of the recycling cylinder (403) is connected to the support member (402), and the open end of the recycling cylinder (403) is away from the support member (402). The opening ends of different recycling cylinders (403) face the same direction.

7. The device for peeling fresh walnut kernels according to claim 6, characterized in that: The recovery tube (401) is inclined to the horizontal plane, and the plane where the lowest point of the center of the recovery tube (401) is located is higher than the plane where the end face of the grinding cylinder (202) is located.

8. The method of using the fresh walnut kernel peeling device according to claim 7 is as follows: Step 1: Use the high-temperature diamond powder in the first space (104) to heat and rub the walnut kernels for pretreatment; Step 2: The grinding cylinder (202) and grinding disc (203) are used to knead and remove the skin from the walnut kernels; Step 3: The rotating cylinder (301) and the first guide component (302) polish and grind the walnut kernels to remove their skins; Step 4: The first cleaning unit (502) performs high-pressure cleaning and peeling on the walnut kernels to remove impurities from the surface of the walnut kernels; Step 5: The first drying unit (503) dries the walnut kernels.

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