An oil pressing device with walnut kernel shell separation function

Abstract

This invention discloses an oil pressing device with walnut kernel shell separation function, relating to the field of walnut oil pressing technology. It includes a base plate, with two rotating mechanisms on the upper side of the base plate and a separation mechanism located between them. A spiral oil pressing device is located on the upper side of the base plate below the separation mechanism, and a collecting mechanism is located on the left side of the base plate. The oil pressing device with walnut kernel shell separation function of this invention drives a first sieve cylinder, a second sieve cylinder, and a protective cylinder to rotate and move up and down simultaneously, thereby crushing the walnuts. Rotation replaces vibration for sieving. The design of the first and second shielding rings prevents strong and weak winds from contacting each other, reducing the probability of fine kernels being blown away. During rotation, a scraper and the outermost spiral conveyor plate scrape the first and second sieve cylinders, reducing walnut kernel adhesion and waste.

Description

Technical Field

[0001] This invention relates to the field of walnut oil extraction technology, and in particular to an oil extraction device with walnut kernel shell separation function. Background Technology

[0002] Walnuts, also known as Persian walnuts or walnuts, are plants belonging to the Juglandaceae family. Along with almonds, cashews, and hazelnuts, they are known as the world's four famous dried fruits. 86% of the fat in walnuts is unsaturated fatty acids. Walnut oil is made from high-quality walnuts, and the mainstream method is physical pressing (cold pressing / hot pressing), which balances nutrition and oil yield.

[0003] Chinese patent document CN212833664U discloses a walnut oil pressing device, including a drum oil pressing box. A feed pipe is located at the top of the drum oil pressing box, and an impurity magnetic suction port is connected to the end of the feed pipe away from the drum oil pressing box. A feed inlet is fixedly connected to the top of the impurity magnetic suction port. A rinsing port is located on one side of the top of the drum oil pressing box. A drum is installed inside the drum oil pressing box. Support legs are fixedly connected to the outer surface of the bottom of the drum oil pressing box. A first discharge port is located at the bottom of the drum oil pressing box, and a hydraulic oil pressing box is fixedly connected to the end of the first discharge port away from the drum oil pressing box. A hydraulic plate is located at the top of the hydraulic oil pressing box, and both sides of the hydraulic plate are slidably connected to the hydraulic oil pressing box. A compression shaft is fixedly connected to the top of the hydraulic plate. This device has a simple structure, extends the service life of the device, improves the oil yield, and reduces impurities in the pressed walnut oil.

[0004] The existing technology has the following problems:

[0005] In existing walnut oil pressing equipment, a vibrating screen and air separation are often used to separate the shells and kernels. However, this method often leads to the problem that the fine kernels are carried away by the air, resulting in waste of walnut kernels. At the same time, the walnut kernels are prone to oil release after heating, which can cause clogging of the screen. Summary of the Invention

[0006] The main objective of this invention is to provide an oil pressing device with walnut kernel shell separation function, which can effectively solve the problem that fine kernels are easily carried away during the shell-kernel separation process caused by the combination of vibrating screen and air classification.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows:

[0008] An oil pressing device with walnut shell separation function includes a base plate, two rotating mechanisms on the upper side of the base plate and a separation mechanism located between them, a spiral oil pressing device located below the separation mechanism on the upper side of the base plate, a collecting mechanism on the left side of the base plate, and the separation mechanism including a squeezing roller, a first screen cylinder, a second screen cylinder and a protective cylinder distributed from the inside to the outside.

[0009] The rotating mechanism drives the first sieve cylinder, the second sieve cylinder, and the protective cylinder to rotate. By squeezing the walnuts with the squeeze rollers, the first and second sieve cylinders separate the walnut shells and kernels during rotation.

[0010] Preferably, the separation mechanism further includes two lifting plates on the left and right sides and a transmission assembly passing through the lifting plates on both sides thereon. The left and right sides of the first screen cylinder, the second screen cylinder, and the protective cylinder are rotatably connected to the lifting plates on the side that is close to each other. The rotation mechanism includes a motor fixedly connected to the upper side of the base plate and a rotating rod fixedly connected to its output end. A transmission ring is rotatably connected to the side of the lifting plate away from the first screen cylinder. The rotating transmission ring indirectly drives the first screen cylinder, the second screen cylinder, and the protective cylinder to rotate through the transmission assembly. A first gear ring is fixedly connected to the inner side of the transmission ring. A first gear meshing with the first gear ring is rotatably connected to the side of the lifting plate away from the first screen cylinder. A universal joint coupling is rotatably connected between the first gear and the side of the rotating rod that is close to each other.

[0011] Preferably, the first screen cylinder, the second screen cylinder, and the protective cylinder are provided with several annularly distributed first feed inlets on their outer sides near the left and right sides. The outer sides of the two lifting plates are fixedly connected with sealing ring shells. The inner side of the sealing ring shells is rotatably connected to the outer side of the protective cylinder to seal the first feed inlets. The outer sides of the two sealing ring shells are provided with second feed inlets located on the lower side. The second feed inlet on the left side is connected to the feed inlet of the screw oil press through a flexible cover. The upper side of the sealing ring shell on the right side is provided with a third feed inlet.

[0012] Preferably, a transmission rod located below the protective cylinder is rotatably connected to the upper center of the substrate. Several horizontally distributed cams are fixedly connected to the outer side of the transmission rod. The outer side of the cams is in contact with the outer side of the protective cylinder. A limiting mechanism for maintaining the vertical movement of the protective cylinder and the sealing ring shell is provided on the upper side of the substrate. A first linkage assembly is provided on the upper side of the substrate. The first linkage assembly is used to transmit power between the rotating rod and the transmission rod.

[0013] Preferably, the left and right ends of the extrusion roller are rotatably connected to the upper side of the substrate through the lifting plate. A second linkage assembly for power transmission is provided between the rotating rod and the left and right ends of the extrusion roller. Several horizontally distributed stirring plates are fixedly connected to the upper side of the extrusion roller. Several horizontally distributed jetting stations are fixedly connected between the two lifting plates through a first crossbar, and the jetting stations are located inside the first screen cylinder.

[0014] Preferably, a plurality of horizontally distributed air jet rings are fixedly connected to the side of the two lifting plates that are close to each other by a second crossbar, and the air jet rings are located between the outer side of the first screen cylinder and the inner side of the second screen cylinder. A first shielding ring is fixedly connected to the right side of each of the plurality of air jet rings, and a second shielding ring is fixedly connected to the left side of each of the plurality of air jet rings, and the second shielding ring is located inside the adjacent first shielding ring on the left side.

[0015] Preferably, a spiral conveying plate is fixedly connected to the inner side of both the second screen cylinder and the protective cylinder. A scraper is movably connected between the two lifting plates through a third crossbar. The scraper only moves up and down relative to the lifting plates. When the first screen cylinder is at its lowest position, the upper side of the scraper contacts the top of the inner side of the first screen cylinder. A spring is provided between the scraper and the third crossbar to ensure that the scraper is in close contact with the first screen cylinder.

[0016] Preferably, the transmission rod and the rotating rod, as well as the extrusion roller and the rotating rod, are unidirectional transmissions. When the transmission rod rotates, the extrusion roller is stationary, and when the extrusion roller rotates, the transmission rod is stationary.

[0017] Preferably, the collecting mechanism includes a ring tube, a rotating ring sleeved inside it, and several annularly distributed push plates. The push plates are fixedly connected to the outer side of the rotating ring on their adjacent sides. A second gear is rotatably connected to the top boss on the inner side of the ring tube. A second gear ring that meshes with the upper side of the second gear is fixedly connected to the inner side of the rotating ring. The right side of the ring tube is fixedly connected to the left side of the base plate. A third linkage assembly is provided between the right side of the second gear and the left output end of the left motor. The oil outlet of the spiral oil press is connected to the bottom rear side of the ring tube by an oil delivery pipe. An oil outlet is provided at the lower middle position on the front side of the ring tube.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This invention provides an oil pressing device with walnut kernel shell separation function. Based on the cooperation of a separation mechanism, a first sieve cylinder, a second sieve cylinder, a protective cylinder, a squeeze roller, an air jet platform, an air jet ring, a first shielding ring, a second shielding ring, a transmission assembly, a scraper, a spiral conveyor plate, a stirring plate, a transmission rod, a cam, a lifting plate, a sealing ring shell, and a rotating mechanism, the rotating mechanism drives the first sieve cylinder, the second sieve cylinder, and the protective cylinder to rotate and move up and down simultaneously, thus crushing the walnuts. Rotation replaces vibration for sieving. The first and second shielding rings prevent strong and weak airflow from contacting each other, reducing the probability of fine kernels being blown away. During rotation, the scraper and the outermost spiral conveyor plate scrape the first and second sieve cylinders, reducing walnut kernel adhesion and waste.

[0020] 2. This invention provides an oil pressing device with walnut kernel shell separation function. Based on the cooperation of a screw oil pressing device, a collecting mechanism, a ring pipe, a rotating ring, a pushing plate, a second gear, and a second gear ring, the rotating ring rotates to push the oil entering the inner side of the ring pipe, and pushes the oil out from the oil outlet. This allows the height of the device to be as low as possible, reducing the overall size. At the same time, it avoids the direct suction method, which causes the oil level of the screw oil pressing device to be higher than the screw oil pressing device, resulting in oil backflow and affecting the oil yield. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the left-side stereoscopic structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the right-side stereoscopic structure of the present invention;

[0023] Figure 3 This is a three-dimensional structural diagram of the separation mechanism part of the present invention;

[0024] Figure 4 This is a three-dimensional exploded structural diagram of the protective cylinder portion of the present invention.

[0025] Figure 5 This is a partial exploded three-dimensional cross-sectional view of the lifting plate portion of the present invention;

[0026] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the first screen cylinder portion of the present invention;

[0027] Figure 7 This is a three-dimensional structural diagram of the second sieve cylinder portion of the present invention;

[0028] Figure 8 This is a three-dimensional structural diagram of the limiting mechanism part of the present invention;

[0029] Figure 9 This is a partial cross-sectional three-dimensional structural diagram of the second sieve cylinder portion of the present invention;

[0030] Figure 10 For the present invention Figure 9 Enlarged structural diagram of part A in the middle;

[0031] Figure 11 This is a three-dimensional structural diagram of the substrate portion of the present invention;

[0032] Figure 12 This is a three-dimensional structural diagram of the collecting mechanism of the present invention.

[0033] In the diagram: 1. Base plate; 2. Separation mechanism; 21. First screen cylinder; 22. Second screen cylinder; 23. Protective cylinder; 24. Extrusion roller; 25. Air jet station; 26. Air jet ring; 27. First shielding ring; 28. Second shielding ring; 29. ​​Transmission assembly; 210. Scraper; 211. Screw conveyor plate; 212. Stirring plate; 213. Transmission rod; 214. Cam; 215. Lifting plate; 216. Sealing ring shell; 3. Rotation mechanism; 31. Motor; 32. Rotating rod; 33. Universal joint coupling; 34. First gear; 35. First gear ring; 36. Transmission ring; 37. First linkage assembly; 38. Second linkage assembly; 39. Third linkage assembly; 4. Limiting mechanism; 5. Screw oil press equipment; 6. Collection mechanism; 61. Ring pipe; 62. Rotating ring; 63. Pushing plate; 64. Second gear; 65. Second gear ring. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] Example 1, as Figures 1-4 As shown, an oil pressing device with walnut shell separation function includes a base plate 1. The upper side of the base plate 1 is provided with two rotating mechanisms 3 on the left and right sides and a separation mechanism 2 located between them. The upper side of the base plate 1 is provided with a spiral oil pressing device 5 located below the separation mechanism 2. The spiral oil pressing device 5 is an existing oil pressing mechanism that relies on the spiral to squeeze the oil material so that the liquid oil is extracted. The left side of the base plate 1 is provided with a collection mechanism 6. The separation mechanism 2 includes a squeezing roller 24, a first screen cylinder 21, a second screen cylinder 22 and a protective cylinder 23 distributed from the inside to the outside. The first screen cylinder 21 and the second screen cylinder 22 have a screening function. The first screen cylinder 21 performs a first screening and the second screen cylinder 22 performs a second screening.

[0036] The rotating mechanism 3 drives the first sieve cylinder 21, the second sieve cylinder 22 and the protective cylinder 23 to rotate. By relying on the squeezing roller 24 to squeeze the walnuts, the first sieve cylinder 21 and the second sieve cylinder 22 can separate the walnut shells and kernels during rotation.

[0037] It should be noted that the rotating mechanism 3 drives the first screen cylinder 21 and the second screen cylinder 22 to rotate, converting the vibrating screening into rotary screening, which reduces the impact of vibration on the connection of components.

[0038] Example 2, as Figures 5-10As shown, the separation mechanism 2 also includes two lifting plates 215 on the left and right sides and a transmission assembly 29 passing through the lifting plates 215 and located on both sides thereon. The transmission assembly 29 adopts the form of gear ring meshing with spur gear. The spur gear is rotatably connected to both sides of the lifting plate 215 through a round shaft, so that when the gear ring on one side rotates, it drives the gear ring on the other side. By fixing the gear ring to the first screen cylinder 21, the second screen cylinder 22 or the protective cylinder 23, the equipment can drive the first screen cylinder 21, the second screen cylinder 22 and the protective cylinder 23 to rotate through the lifting plate 215.

[0039] The left and right sides of the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 are rotatably connected to the side of the lifting plate 215 that is close to each other. The rotating mechanism 3 includes a motor 31 fixedly connected to the upper side of the base plate 1 and a rotating rod 32 fixedly connected to its output end. The first screen cylinder 21 drives the rotating rod 32 to rotate. A transmission ring 36 is rotatably connected to the side of the lifting plate 215 away from the first screen cylinder 21. The rotating transmission ring 36 indirectly drives the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 to rotate through the transmission assembly 29. The transmission ring 36 is fixedly connected to the gear ring on the side of the lifting plate 215 that is far from each other on the transmission assembly 29, so that when the transmission ring 36 rotates, it can drive the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 to rotate through the transmission assembly 29.

[0040] A first gear ring 35 is fixedly connected to the inner side of the transmission ring 36. A first gear 34 that meshes with the first gear ring 35 is rotatably connected to the side of the lifting plate 215 away from the first screen cylinder 21. A universal joint coupling 33 is rotatably connected between the sides of the first gear 34 and the rotating rod 32 that are close to each other. The use of the universal joint coupling 33 ensures that the movement of the first screen cylinder 21, the second screen cylinder 22 and the protective cylinder 23 will not affect the power transmission of the motor 31 to the first gear 34.

[0041] Preferably, the outer sides of the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 are provided with several annularly distributed first feed inlets. The first feed inlet on the left is used to discharge walnut kernels, and the first feed inlet on the right is used to discharge walnut shells. The outer sides of the two lifting plates 215 are fixedly connected with sealing ring shells 216. The inner side of the sealing ring shell 216 is rotatably connected to the outer side of the protective cylinder 23 to seal the first feed inlets. The use of sealing ring shells 216 prevents external debris from entering the equipment through the first feed inlets. At the same time, there can be a non-rotating part connected to the first feed inlets.

[0042] Both sealing ring shells 216 have a second feed port on the lower side on their outer side. The second feed port on the left side is connected to the feed inlet of the screw oil press 5 through a flexible cover. The sealing ring shell 216 on the right side has a third feed port on its upper side. When the number of first feed ports on the same side of the first screen cylinder 21 is odd, the sealing ring shell 216 is located on the upper side of the first feed port. When the number is even, the adjacent first feed ports on the same side are misaligned, and only half of the first feed ports are located on the upper side of the sealing ring shell 216.

[0043] Preferably, a transmission rod 213 located below the protective cylinder 23 is rotatably connected to the upper middle part of the substrate 1. Several transversely distributed cams 214 are fixedly connected to the outer side of the transmission rod 213. The outer side of the cams 214 is in contact with the outer side of the protective cylinder 23. An annular guide rail is provided on the outer side of the protective cylinder 23. The cams 214 are locked on the inner side of the annular guide rail to prevent the protective cylinder 23 and the cams 214 from moving relative to each other in the left and right directions.

[0044] The upper side of the substrate 1 is provided with a limiting mechanism 4 for keeping the protective cylinder 23 and the sealing ring shell 216 moving up and down. The limiting mechanism 4 is in the form of a telescopic rod. Its upper end is rotatably connected to the protective cylinder 23 by an annular ring and is fixedly connected to the lifting plate 215, so that the lifting plate 215 and the protective cylinder 23 will not be misaligned in the front, back, left and right sides during the up and down movement.

[0045] The upper side of the substrate 1 is provided with a first linkage component 37. The first linkage component 37 can be in the form of sprocket and chain drive. The sprocket is installed on the rotating rod 32 and the transmission rod 213. Relying on the chain drive, the rotating rod 32 drives the transmission rod 213 to rotate when it rotates. The first linkage component 37 is used to transmit power between the rotating rod 32 and the transmission rod 213.

[0046] It should be noted that the motor 31 drives the rotating rod 32 to rotate, which in turn drives the transmission rod 213 to rotate through the first linkage assembly 37. When the transmission rod 213 rotates, it drives the cam 214 to rotate. The rotation of the cam 214 causes the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 to move up and down. During the up and down movement of the first screen cylinder 21, its bottom moves closer to and further away from the extrusion roller 24, so that the extrusion roller 24 extrudes the material inside the first screen cylinder 21.

[0047] Preferably, the left and right ends of the extrusion roller 24 are rotatably connected to the upper side of the base plate 1 through the lifting plate 215. A second linkage component 38 for power transmission is provided between the rotating rod 32 and the left and right ends of the extrusion roller 24. The second linkage component 38 can be two meshing spur gears. The spur gears are installed on the extrusion roller 24 and the rotating rod 32. When the rotating rod 32 rotates, it drives the extrusion roller 24 to rotate. Several horizontally distributed stirring plates 212 are fixedly connected to the upper side of the extrusion roller 24. The rotation of the extrusion roller 24 drives the stirring plates 212 to rotate. The stirring plates 212 agitate the material inside the first screen cylinder 21. Several horizontally distributed air jet stations 25 are fixedly connected between the two lifting plates 215 through the first crossbar. The air jet stations 25 are located inside the first screen cylinder 21. The air jet stations 25 spray air to the right, causing the walnut shells to move to the right and be discharged from the first feed port on the right side.

[0048] Preferably, a number of horizontally distributed jet rings 26 are fixedly connected to one side of the two lifting plates 215 that are close to each other by a second crossbar. The jet rings 26 spray out micro airflow, which separates the kernel and shell. The jet rings 26 are located between the outer side of the first sieve cylinder 21 and the inner side of the second sieve cylinder 22.

[0049] A first shielding ring 27 is fixedly connected to the right side of each of the jet rings 26. The first shielding ring 27 is used to prevent the airflow ejected from the jet rings 26 from flowing into the first sieve cylinder 21. A second shielding ring 28 is fixedly connected to the left side of each of the jet rings 26. The second shielding ring 28 is used to prevent the strong airflow ejected from the jet platform 25 from flowing out of the first sieve cylinder 21. The second shielding ring 28 is located inside the first shielding ring 27 on the left side.

[0050] Preferably, a spiral conveyor plate 211 is fixedly connected to the inner side of both the second screen cylinder 22 and the protective cylinder 23. When the second screen cylinder 22 and the protective cylinder 23 rotate, the material falling into the second screen cylinder 22 and the protective cylinder 23 is conveyed to the left. At this time, the jet station 25 sprays airflow to the left, causing large pieces of walnut kernels to move to the left. A scraper 210 is movably connected between the two lifting plates 215 through a third crossbar. The scraper 210 is used to scrape the inside of the first screen cylinder 21 to avoid crushing due to compression, causing some walnut kernels to adhere to the inside of the first screen cylinder 21. The inner side of the spiral conveyor plate 211 on the outside is attached to the outer side of the second screen cylinder 22 to clear the screen holes on the second screen cylinder 22.

[0051] Furthermore, the scraper 210 only moves up and down relative to the lifting plate 215. When the first screen cylinder 21 is at its lowest position, the upper side of the scraper 210 contacts the top of the inner side of the first screen cylinder 21. A spring is provided between the scraper 210 and the third crossbar to ensure that the scraper 210 and the first screen cylinder 21 are in close contact.

[0052] Preferably, the transmission rod 213 and the rotating rod 32, as well as the extrusion roller 24 and the rotating rod 32, are unidirectional transmissions. This unidirectional rotation can be directly reflected in the sprocket and spur gear connected to the rotating rod 32. When the transmission rod 213 rotates, the extrusion roller 24 is stationary, and when the extrusion roller 24 rotates, the transmission rod 213 is stationary.

[0053] It should be noted that when the extrusion roller 24 rotates, the first screen cylinder 21 is located at the bottom, and when the transmission rod 213 rotates, the agitator 212 is located above the extrusion roller 24.

[0054] Example 3, as Figures 11-12 As shown, the collecting mechanism 6 includes a ring tube 61, a rotating ring 62 sleeved inside it, and several ring-shaped push plates 63. The ring tube 61 is fixedly connected to the left side of the base plate 1 in the form of a stand. The push plates 63 are fixedly connected to the outer side of the rotating ring 62 on the side that is close to each other. The outer sides of the rotating ring 62 and the push plates 63 are tightly fitted to the inner wall of the ring tube 61. At the same time, the fitting position is provided with sealing measures, such as fluororubber gaskets.

[0055] A second gear 64 is rotatably connected to the top boss on the inner side of the ring tube 61. A second gear ring 65, which meshes with the upper side of the second gear 64, is fixedly connected to the inner side of the rotating ring 62. The rotation of the second gear 64 drives the second gear ring 65 to rotate, which in turn drives the push plate 63 to rotate through the rotating ring 62. The right side of the ring tube 61 is fixedly connected to the left side of the base plate 1. A third linkage component 39 is provided between the right side of the second gear 64 and the left output end of the left motor 31. The third linkage component 39 can be driven by a sprocket and chain, which causes the motor 31 to drive the second gear 64 to rotate. The oil outlet of the screw oil press 5 is connected to the bottom rear side of the ring tube 61 by an oil delivery pipe. An oil outlet is provided at the lower middle part of the front side of the ring tube 61.

[0056] It should be noted that the motor 31 drives the second gear 64 to rotate through the third linkage component 39. The oil extracted by the spiral oil press 5 enters the inner bottom of the ring pipe 61 through the oil delivery pipe. The rotation of the second gear 64 drives the push plate 63 to revolve, and the push plate 63 pushes the oil to move towards the oil outlet.

[0057] The working principle of this invention is as follows: First, the motor 31 drives the rotating rod 32 to rotate, which in turn drives the transmission rod 213 to rotate via the first linkage assembly 37. When the transmission rod 213 rotates, it drives the cam 214 to rotate. The rotation of the cam 214 causes the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 to move up and down. During the up and down movement of the first screen cylinder 21, its bottom approaches and moves away from the extrusion roller 24, causing the extrusion roller 24 to extrude material into the first screen cylinder 21. The scraper 210 is used to scrape the inside of the first screen cylinder 21 to prevent crushing due to extrusion and avoid some walnut kernels adhering to the inside of the first screen cylinder 21. The inner side of the outer spiral conveyor plate 211 is attached to the outer side of the second screen cylinder 22 to clear the sieve holes on the second screen cylinder 22. The rotating mechanism 3 drives the first screen cylinder 21, the second screen cylinder 22, and the protective cylinder 23 to rotate and move up and down simultaneously, thereby crushing the walnuts. During this process, rotation is used instead of vibration to achieve screening. The setting of the shielding ring 27 and the second shielding ring 28 avoids contact between strong and weak winds, reducing the probability of fine kernels being blown away. During rotation, the scraper 210 and the outermost spiral conveyor plate 211 scrape the first screen cylinder 21 and the second screen cylinder 22, reducing the adhesion of walnut kernels and reducing waste. Finally, the motor 31 drives the second gear 64 to rotate through the third linkage component 39. The oil extracted by the spiral oil press 5 enters the inner bottom of the ring pipe 61 through the oil delivery pipe. The rotation of the second gear 64 drives the pusher plate 63 to revolve. The pusher plate 63 pushes the oil towards the oil outlet. The rotation of the rotating ring 62 causes the pusher plate 63 to push the oil entering the inner side of the ring pipe 61 and push the oil out from the oil outlet. This allows the height of the equipment to be as low as possible, reducing the overall size. At the same time, it avoids the direct suction method, which would cause the oil level of the spiral oil press 5 to be higher than the spiral oil press 5, resulting in oil backflow and affecting the oil yield.

[0058] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An oil pressing device with walnut kernel shell separation function, comprising a base plate (1), characterized in that: The upper side of the substrate (1) is provided with two rotating mechanisms (3) on the left and right and a separation mechanism (2) located between them. The upper side of the substrate (1) is provided with a spiral oil pressing device (5) located below the separation mechanism (2). The left side of the substrate (1) is provided with a collection mechanism (6). The separation mechanism (2) includes a squeezing roller (24), a first screen cylinder (21), a second screen cylinder (22) and a protective cylinder (23) distributed from the inside to the outside. The rotating mechanism (3) drives the first sieve cylinder (21), the second sieve cylinder (22) and the protective cylinder (23) to rotate. By relying on the squeezing roller (24) to squeeze the walnuts, the first sieve cylinder (21) and the second sieve cylinder (22) can separate the walnut shells and kernels during rotation.

2. The oil pressing device with walnut kernel shell separation function according to claim 1, characterized in that: The separation mechanism (2) further includes two lifting plates (215) on the left and right sides and a transmission assembly (29) passing through the lifting plates (215) on both sides thereon. The left and right sides of the first screen cylinder (21), the second screen cylinder (22) and the protective cylinder (23) are rotatably connected to the side of the lifting plate (215) that is close to each other. The rotation mechanism (3) includes a motor (31) fixedly connected to the upper side of the base plate (1) and a rotating rod (32) fixedly connected to its output end. The side of the lifting plate (215) away from the first screen cylinder (21) is rotatably connected to the side of the lifting plate (215) that is close to each other. A transmission ring (36) is connected. Rotating the transmission ring (36) indirectly drives the first screen cylinder (21), the second screen cylinder (22) and the protective cylinder (23) to rotate through the transmission assembly (29). A first gear ring (35) is fixedly connected to the inner side of the transmission ring (36). A first gear (34) that meshes with the first gear ring (35) is rotatably connected to the side of the lifting plate (215) away from the first screen cylinder (21). A universal joint coupling (33) is rotatably connected between the first gear (34) and the rotating rod (32) on the side that are close to each other.

3. An oil pressing device with walnut kernel shell separation function according to claim 2, characterized in that: Several annular first feed inlets are provided on the outer sides of the first screen cylinder (21), the second screen cylinder (22) and the protective cylinder (23) near the left and right sides. A sealing ring shell (216) is fixedly connected to the outer side of the two lifting plates (215). The inner side of the sealing ring shell (216) is rotatably connected to the outer side of the protective cylinder (23) to seal the first feed inlets. A second feed inlet located on the lower side is provided on the outer side of the two sealing ring shells (216). The second feed inlet on the left side is connected to the feed inlet of the spiral oil press (5) through a flexible cover. A third feed inlet is provided on the upper side of the sealing ring shell (216) on the right side.

4. An oil pressing device with walnut kernel shell separation function according to claim 3, characterized in that: The upper middle part of the base plate (1) is rotatably connected to a transmission rod (213) located below the protective cylinder (23). Several transversely distributed cams (214) are fixedly connected to the outer side of the transmission rod (213). The outer side of the cams (214) is in contact with the outer side of the protective cylinder (23). The upper side of the base plate (1) is provided with a limiting mechanism (4) for maintaining the up and down movement of the protective cylinder (23) and the sealing ring shell (216). The upper side of the base plate (1) is provided with a first linkage component (37). The first linkage component (37) is used to transmit power between the rotating rod (32) and the transmission rod (213).

5. An oil pressing device with walnut kernel shell separation function according to claim 2, characterized in that: The left and right ends of the extrusion roller (24) are rotatably connected to the upper side of the base plate (1) through the lifting plate (215). A second linkage assembly (38) for power transmission is provided between the rotating rod (32) and the left and right ends of the extrusion roller (24). Several horizontally distributed stirring plates (212) are fixedly connected to the upper side of the extrusion roller (24). Several horizontally distributed jetting stations (25) are fixedly connected between the two lifting plates (215) through the first crossbar. The jetting stations (25) are located inside the first screen cylinder (21).

6. An oil pressing device with walnut kernel shell separation function according to claim 5, characterized in that: On the side of the two lifting plates (215) that are close to each other, a number of horizontally distributed jet rings (26) are fixedly connected by a second crossbar. The jet rings (26) are located between the outer side of the first screen cylinder (21) and the inner side of the second screen cylinder (22). A first shielding ring (27) is fixedly connected to the right side of each of the jet rings (26). A second shielding ring (28) is fixedly connected to the left side of each of the jet rings (26). The second shielding ring (28) is located inside the adjacent first shielding ring (27) on the left side.

7. An oil pressing device with walnut kernel shell separation function according to claim 5, characterized in that: The inner sides of the second screen cylinder (22) and the protective cylinder (23) are both fixedly connected with spiral conveying plates (211). The two lifting plates (215) are movably connected with scrapers (210) through a third crossbar. The scrapers (210) only move up and down relative to the lifting plates (215). When the first screen cylinder (21) is at the lowest side, the upper side of the scraper (210) contacts the top of the inner side of the first screen cylinder (21). A spring is provided between the scraper (210) and the third crossbar for the scraper (210) to be in close contact with the first screen cylinder (21).

8. An oil pressing device with walnut kernel shell separation function according to claim 4, characterized in that: The transmission rod (213) and the rotating rod (32) and the extrusion roller (24) and the rotating rod (32) are both unidirectional transmissions. When the transmission rod (213) rotates, the extrusion roller (24) is stationary. When the extrusion roller (24) rotates, the transmission rod (213) is stationary.

9. An oil pressing device with walnut kernel shell separation function according to claim 1, characterized in that: The collecting mechanism (6) includes a ring pipe (61), a rotating ring (62) sleeved inside it, and several ring-shaped push plates (63). The push plates (63) are fixedly connected to the outer side of the rotating ring (62) on the side closer to each other. A second gear (64) is rotatably connected to the top boss on the inner side of the ring pipe (61). A second gear ring (65) that meshes with the upper side of the second gear (64) is fixedly connected to the inner side of the rotating ring (62). The right side of the ring pipe (61) is fixedly connected to the left side of the base plate (1). A third linkage component (39) is provided between the right side of the second gear (64) and the left output end of the left motor (31). The oil outlet of the spiral oil press (5) is connected to the bottom rear side of the ring pipe (61) by an oil delivery pipe. An oil outlet is provided at the lower part of the front middle of the ring pipe (61).

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