A cold-pressing oil processing system for rapeseed

Abstract

The present application relates to rapeseed oil pressing technology field, specifically speaking, it is a kind of cold-pressed oil processing system of rapeseed;By setting: machine body, operation box, feed part, pressing part, cage, cake outlet and cake conveying part;When filter plate moves up and down, especially when filter plate moves up, filter plate will extrude the lower end of hinged plate, since hinged plate is hinged on two mounting plates, when the upper end of filter plate extrudes the lower end of hinged plate, hinged plate will rotate, so that the lower end of hinged plate slides on the surface of filter plate to the direction of collection box, in this process, the lower end of hinged plate will push the surface of filter plate, realize the lower end of hinged plate to push the solid impurities on the surface of filter plate, push the solid impurities on the surface of filter plate to collection box, further avoid solid impurities to stay on the surface of filter plate, cause filter plate to appear the problem of blockage;Further improve the filtering efficiency of filter plate.

Description

Technical Field

[0001] This invention relates to the field of rapeseed oil extraction technology, specifically a cold oil extraction system for rapeseed. Background Technology

[0002] Rapeseed is the seed of rapeseed, belonging to the Brassicaceae family. It is my country's largest oilseed crop and the core raw material for edible rapeseed oil and rapeseed meal feed. Rapeseed is divided into three types: Chinese cabbage type, mustard type, and kale type. It is mainly used to extract edible rapeseed oil. The rapeseed meal, a by-product of oil extraction, is a high-quality feed raw material for poultry and livestock. A small amount is used to extract rapeseed phospholipids, phytic acid, and other deep-processed products. Cold-pressed rapeseed oil is a low-temperature pressing process compared to hot pressing. Its core is that rapeseed is pressed directly into oil using mechanical pressure in an oil press without undergoing high-temperature roasting or steaming; this is a physical oil pressing method. The low temperature avoids the high-temperature decomposition of nutrients such as oils, phospholipids, vitamin E, and phytosterols, resulting in a much higher content of natural active substances in cold-pressed rapeseed oil compared to hot-pressed oil. Furthermore, cold-pressed rapeseed cake exhibits lower protein denaturation and retains more active crude protein, making it suitable for direct use in the production of high-end feed and plant protein powder, with a much higher added value than hot-pressed rapeseed meal. The cold pressing process for rapeseed mainly uses large-scale horizontal screw cold press units. The cold press unit consists of a primary pre-press, a secondary refining press, a pressing chamber system, and a variable frequency speed control system to achieve continuous feeding, pressing, cake discharge, and oil collection. During the cold pressing process of rapeseed, especially in the initial stage, the freshly pressed rapeseed oil is crude oil, containing various solid, liquid, and pectin-soluble impurities, which must be filtered. However, when collecting rapeseed oil after cold pressing, the crude oil containing various solid and liquid impurities is usually collected together and then filtered using a filter screen. It is not possible to filter the impurities in the crude oil all at once during the production process, which increases the number of production steps and reduces production efficiency.

[0003] In summary, to solve the technical problems raised in this paper, this invention proposes a cold pressing system for rapeseed. Summary of the Invention

[0004] To address the aforementioned problem that existing methods for collecting cold-pressed rapeseed oil often involve collecting crude oil containing various solid and liquid impurities together, followed by filtration using a filter screen, which fails to filter impurities during the production process, thus increasing production steps, reducing efficiency, and leading to poor sowing efficiency, this invention proposes a cold-pressing oil processing system for rapeseed. This system includes an oil press, comprising a machine body, an operating box, a feeding section, a pressing section, a pressing cage, a cake discharge section, and a cake conveying section. The operating box is located on the machine body; the feeding section is located at the end of the machine body furthest from the operating box; the pressing section is located between the feeding section and the operating box; the pressing cage is located outside the pressing section; the cake discharge section is located at the end of the pressing section near the operating box; and the cake conveying section is located on the machine body below the pressing section. The machine body also includes: The oil receiving tray is installed on the machine body, located above the cake conveying section and below the pressing section; the oil receiving tray is installed at an angle. There are two mounting plates, and the two mounting plates are respectively set on the upper sides of the oil receiving tray. The two mounting plates have mounting grooves at the ends that are close to each other, and the mounting grooves are equipped with telescopic devices. An oil filter plate is inclinedly set between two mounting plates and is parallel to the mounting plates; the oil filter plate is located above the oil receiving tray; protrusions are provided on both sides of the oil filter plate, the protrusions are located in the mounting groove, and the protrusions are connected to the telescopic end of the telescopic device. The collection box is located between the two mounting plates, with the collection box situated at the lower end of the mounting plates. The bottom of the collection box has the same perforated structure as the oil filter plate, and the collection box is located above the oil filter plate.

[0005] As a preferred embodiment of this application, a rotating shaft is provided between the two mounting plates, and a torsion spring is provided at the connection between the rotating shaft and the two mounting plates. A hinge plate is provided on the rotating shaft, and the rotating shaft and the hinge plate are located above the oil filter plate. In the initial state, the hinge plate is inclined downward, and there is a gap between the lower end of the hinge plate and the upper end of the oil filter plate.

[0006] As a preferred embodiment of this application, the collection box is fixed between two mounting plates, and an L-shaped groove is formed on the inner wall of the collection box located directly below the oil filter plate. The lower end of the L-shaped groove communicates with the interior of the collection box, and an L-shaped plate is slidably connected inside the L-shaped groove. A disturbance plate is provided at the lower end of the L-shaped plate, which is located inside the collection box. A connecting plate is hinged to the upper end of the L-shaped plate. In the initial state, the connecting plate is inclined, and the upper end of the connecting plate is hinged to the lower end of the oil filter plate. When the oil filter plate moves up and down, the oil filter plate pulls the connecting plate.

[0007] As a preferred embodiment of this application, the inside of the collection box is provided with a fixing plate, which is located between adjacent disturbance plates. In the initial state, each fixing plate is in contact with the first disturbance plate on its right.

[0008] As a preferred embodiment of this application, filter holes are provided on both the fixed plate and the disturbance plate.

[0009] As a preferred embodiment of this application, a fixing rod is provided above the end of the fixed plate and the disturbance plate near the oil filter plate. A bending plate is sleeved on the fixing rod, and the two ends of the bending plate are respectively sleeved on the fixing rod at the upper end of the disturbance plate and the fixed plate that are close to each other. In the initial state, the bending plate is located between the fixed plate and the disturbance plate that are in contact with each other. When the L-shaped plate moves, the movement of the disturbance plate causes the bending plate to fold and extend.

[0010] As a preferred embodiment of this application, the wall of the collection box at the end away from the oil filter plate is rotatably connected to the inner walls on both sides of the collection box. The bottom wall of the collection box is provided with multiple placement slots, which are located in the gap between the disturbance plate and the first fixed plate located on its right side. A placement plate is provided inside the placement slot, and one end of the placement plate is connected to the inner wall of the collection box at the side away from the oil filter plate. When the side of the collection box away from the oil filter plate rotates, the placement plate rotates synchronously.

[0011] As a preferred embodiment of this application, a rectangular frame is slidably connected to the lower end of the oil filter plate. Multiple isolation rods are provided inside the rectangular frame, which divide the interior of the rectangular frame into multiple rectangular spaces. Connecting rods are hinged to the lower ends of both sides of the rectangular frame. The lower ends of the connecting rods are hinged to the upper end of the oil receiving tray on the side away from the collection box. In the initial state, the connecting rods are inclined. When the oil filter plate moves upward, the connecting rods drive the rectangular frame to move away from the collection box at the lower end of the oil filter plate.

[0012] The beneficial effects of this invention are as follows: During the up-and-down movement of the oil filter plate, especially during its upward movement, the filter plate presses against the lower end of the hinge plate. Because the hinge plate is hinged to two mounting plates, when the upper end of the filter plate presses against the lower end of the hinge plate, the rotating shaft cannot move upward, causing the hinge plate to rotate. This causes the lower end of the hinge plate to slide towards the collection box on the surface of the filter plate. During this process, the lower end of the hinge plate pushes against the surface of the filter plate, pushing solid impurities onto the filter plate surface and into the collection box. This prevents solid impurities from remaining on the filter plate surface and causing blockage, thereby improving the filtration efficiency of the oil filter plate. Attached Figure Description

[0013] Figure 1 This is a perspective view of the oil press in this invention; Figure 2 This is a perspective view of the oil press in this invention from another angle; Figure 3 This is a perspective view of the oil press in this invention after the feed section has been removed; Figure 4 In this invention Figure 3 Side view in the middle; Figure 5 This is a structural view of the oil filter plate in this invention; Figure 6 This is a view of the placement plate after rotation in this invention; Figure 7 This is a structural view of the rectangular frame in this invention; Figure 8 This is a structural view of the fixed plate and the disturbance plate in this invention; Figure 9 This is a cross-sectional view of the L-shaped groove in this invention; Figure 10 This is a structural view of the L-shaped block in this invention; In the diagram: 1. Machine body; 2. Control box; 3. Feeding section; 4. Pressing section; 5. Pressing cage; 6. Cake discharge section; 7. Cake conveying section; 11. Oil receiving tray; 12. Mounting plate; 121. Telescopic device; 13. Filter plate; 131. Protrusion; 14. Collection box; 122. Hinge plate; 141. L-shaped groove; 142. L-shaped plate; 143. Disturbance plate; 144. Connecting plate; 145. Fixing plate; 146. Fixing rod; 147. Bending plate; 16. Placement groove; 161. Placement plate; 17. Rectangular frame; 171. Isolation rod; 172. Connecting rod. Detailed Implementation

[0014] 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.

[0015] Example 1: like Figures 1 to 10 As shown; a cold-pressing oil processing system for rapeseed, the system includes an oil press, which comprises a machine body 1, an operation box 2, a feeding section 3, a pressing section 4, a pressing cage 5, a cake discharge section 6, and a cake conveying section 7; the operation box 2 is mounted on the machine body 1; the feeding section 3 is located at the end of the machine body 1 away from the operation box 2; the pressing section 4 is located between the feeding section 3 and the operation box 2; the pressing cage 5 is located on the outside of the pressing section 4; the cake discharge section 6 is located at the end of the pressing section 4 near the operation box 2; the cake conveying section 7 is mounted on the machine body 1 and located below the pressing section 4; the machine body 1 also includes: The oil receiving tray 11 is installed on the machine body 1, and is located above the cake conveying section 7 and below the pressing section 4; the oil receiving tray 11 is installed at an angle. There are two mounting plates 12, and the two mounting plates 12 are respectively set on the upper ends of the two sides of the oil receiving tray 11. The two mounting plates 12 are provided with mounting grooves at the ends that are close to each other, and the mounting grooves are provided with telescopic devices 121. The oil filter plate 13 is inclinedly disposed between two mounting plates 12 and is parallel to the mounting plates 12; the oil filter plate 13 is located above the oil receiving tray 11; the oil filter plate 13 is provided with protrusions 131 on both sides, the protrusions 131 are located in the mounting groove, and the protrusions 131 are connected to the telescopic end of the telescopic device 121. Collection box 14 is disposed between two mounting plates 12, and the collection box 14 is located at the lower end of the mounting plate 12; the bottom of the collection box 14 is the same as the filter plate 13 with a filter hole structure, and the collection box 14 is located above the filter plate 13. A rotating shaft is provided between the two mounting plates 12, and a torsion spring is provided at the connection between the rotating shaft and the two mounting plates 12. A hinge plate 122 is provided on the rotating shaft. The rotating shaft and the hinge plate 122 are located above the oil filter plate 13. In the initial state, the hinge plate 122 is inclined downward, and there is a gap between the lower end of the hinge plate 122 and the upper end of the oil filter plate 13. The specific workflow is as follows; When in use, the operator first places rapeseed into the oil press through the feeding section 3, which includes a feeding hopper. The feeding section 3 is connected to the pressing section 4. The rapeseed is conveyed to the inside of the pressing section 4 through the feeding hopper on the feeding section 3. The pressing section 4 is existing technology. After the rapeseed enters the pressing section 4, the screw shaft and multi-stage screw inside the pressing section 4 press the rapeseed, and the rapeseed oil extracted from the rapeseed flows out from the pressing cage 5. The pressing cage 5 is existing technology and consists of pressing bars, gaskets, and hoops, allowing the rapeseed oil to flow out from the pressing bars. The rapeseed is pressed into cakes, which are conveyed from the screw shaft in the pressing section 4, so that the cakes are conveyed from the discharge section of the pressing section 4 near the operation box 2. After the cakes flow out from the cake discharge section 6 of the pressing section 4, the cakes fall into the cake conveying section 7. The cake conveying section 7 is existing technology, which consists of a conveying trough opened on the machine body 1 and a conveying shaft in the conveying trough. After the cakes fall into the cake conveying section 7, the cakes are conveyed out from the end away from the box through the conveying shaft, so as to collect the cakes. The collected cakes can be used to produce by-products such as animal feed. After the rapeseed oil flows out of the pressing cage 5, it falls onto the oil filter plate 13. The oil filter plate 13 has filter holes. As the rapeseed oil falls onto the oil filter plate 13, it flows through the filter plate and into the oil receiving tray 11 below. The oil then flows downwards along the surface of the oil receiving tray 11 and finally falls into the rapeseed oil collection bucket. During the process of the rapeseed oil falling onto the oil filter plate 13, solid impurities from the rapeseed, such as rapeseed particles produced during the pressing process, are filtered out and retained on the oil filter plate 13. This achieves the filtering of solid impurities generated in the early stages of rapeseed oil production. Solid impurities are filtered out, reducing the need for subsequent secondary filtration of the same collected crude oil. A collection box 14 is installed at the downward-sloping end of the oil filter plate 13, with filter holes simultaneously formed at the bottom of the collection box 14. As rapeseed oil flows out of the pressing section 4, solid impurities in the rapeseed oil remain on the oil filter plate 13. As the rapeseed oil falls onto the oil filter plate 13, it passes through the plate and flows downwards, carrying solid impurities towards the collection box 14. During this process, mounting grooves are formed on the inner walls of the two mounting plates 12, and telescopic devices 121 are installed in these grooves. As described in the prior art, telescopic device 121 extends and retracts during the filtering of rapeseed oil by the oil filter plate 13. When the telescopic device 121 extends, protrusions 131 are provided on both sides of the oil filter plate 13, slidably connected in the mounting groove, with the lower end of each protrusion connected to the working end of the telescopic device 121. This causes the telescopic device 121 to move the protrusions 131 upwards in the mounting groove, thus causing the protrusions 131 to slide the oil filter plate 13 upwards between the two mounting plates 12. After the extension action of the telescopic device 121 ends, the telescopic device 121 retracts, allowing the telescopic device 121 to retract through the protrusions 131... 31 drives the oil filter plate 13 to slide downward between the two mounting plates 12, so that the oil filter plate 13 moves up and down between the two mounting plates 12. When rapeseed oil falls onto the surface of the oil filter plate 13, the oil filter plate 13 vibrates up and down. On the one hand, the rapeseed oil falling on the oil filter plate 13 can fall quickly from it and fall onto the oil receiving tray 11. On the other hand, after the solid impurities are filtered by the oil filter plate 13, the oil filter plate 13 vibrates up and down, so that the solid impurities can be driven by the vibration force and can accelerate the flow of solid impurities from the oil filter plate 13 to the collection box 14, so as to avoid the problem of solid impurities remaining on the oil filter plate 13 for a long time and causing clogging of the oil filter plate 13. Furthermore, a rotating shaft is provided between the two mounting plates 12, and a torsion spring is sleeved on the rotating shaft. A hinge plate 122 is also provided on the rotating shaft. In the initial state, there is a gap between the lower end of the hinge plate 122 and the upper end of the oil filter plate 13, which allows solid impurities to pass through. During the above process, when the oil filter plate 13 moves up and down, especially when the oil filter plate 13 moves upward, the oil filter plate 13 will press against the lower end of the hinge plate 122. Since the hinge plate 122 is hinged to the two mounting plates 12, when the upper end of the oil filter plate 13 presses against the hinge plate 122... When the lower end is squeezed, the rotating shaft cannot move upward, so the hinge plate 122 will rotate, causing the lower end of the hinge plate 122 to slide on the surface of the oil filter plate 13 towards the collection box 14. During this process, the lower end of the hinge plate 122 will push the surface of the oil filter plate 13, thereby pushing the solid impurities on the surface of the oil filter plate 13 into the collection box 14, thus preventing solid impurities from remaining on the surface of the oil filter plate 13 and causing the oil filter plate 13 to become clogged; thus improving the filtration efficiency of the oil filter plate 13.

[0016] Example 2: like Figures 2 to 10 As shown; the collection box 14 is fixed between two mounting plates 12, and an L-shaped groove 141 is provided on the inner wall of the collection box 14 located directly below the oil filter plate 13. The lower end of the L-shaped groove 141 communicates with the interior of the collection box 14, and an L-shaped plate 142 is slidably connected inside the L-shaped groove 141. A disturbance plate 143 is provided at the lower end of the L-shaped plate 142, and the disturbance plate 143 is located inside the collection box 14. A connecting plate 144 is hinged to the upper end of the L-shaped plate 142. In the initial state, the connecting plate 144 is inclined, and the upper end of the connecting plate 144 is hinged to the lower end of the oil filter plate 13. When the oil filter plate 13 moves up and down, the oil filter plate 13 pulls the connecting plate 144. The collection box 14 has a fixing plate 145 inside. The fixing plate 145 is located between adjacent disturbance plates 143. In the initial state, each fixing plate 145 is in contact with the first disturbance plate 143 on its right. Both the fixed plate 145 and the disturbance plate 143 are provided with filter holes; A fixing rod 146 is provided above the end of the fixed plate 145 and the disturbance plate 143 near the oil filter plate 13. A bending plate 147 is sleeved on the fixing rod 146, and the two ends of the bending plate 147 are respectively sleeved on the fixing rod 146 at the upper end of the disturbance plate 143 and the fixed plate 145 that are close to each other. In the initial state, the bending plate 147 is located between the fixed plate 145 and the disturbance plate 143 that are in contact with each other. When the L-shaped plate 142 moves, the disturbance plate 143 moves and drives the bending plate 147 to fold and extend. The specific workflow is as follows; Based on the above embodiment 1, the collection box 14 is fixed between two mounting plates 12, and an L-shaped groove 141 is formed in the collection box 14 near the bottom of the oil filter plate 13, so that the lower end of the L-shaped groove 141 communicates with the interior of the collection box 14. An L-shaped plate 142 is slidably connected inside the L-shaped groove 141, so that the L-shaped plate 142 can slide back and forth in the L-shaped groove 141. A connecting plate 144 is hinged to the upper end of the L-shaped plate 142, and the upper end of the connecting plate 144 is hinged to the lower end of the oil filter plate 13. A disturbance plate 143 is provided at the lower end of the L-shaped plate 142, and the disturbance plate 143 is located in the collection box 14. During the upward movement of the oil filter plate 13, the oil filter plate 13 will pull the connecting plate 144. When the connecting plate 144 is pulled, the connecting plate 144 will... When the upper end of the L-shaped plate 142 is pulled, the angle between the connecting plate 144 and the upper end of the L-shaped plate 142 and the lower end of the oil filter plate 13 increases, causing the L-shaped plate 142 to slide towards the end closer to the feed section 3 in the L-shaped groove 141. When the oil filter plate 13 moves downward, the angle between the connecting plate 144 and the L-shaped plate 142 and the oil filter plate 13 decreases, causing the L-shaped plate 142 to slide away from the feed section 3 in the L-shaped groove 141. During this process, the L-shaped plate 142 drives the disturbance plate 143 to slide back and forth in the collection box 14, causing the disturbance plate 143 to push the solid impurities in the collection box 14 back and forth, thereby preventing the solid impurities from accumulating at the bottom of the collection box 14 and reducing the filtration effect of the filter holes on the lower inner wall of the collection box 14. A fixing plate 145 is provided inside the collection box 14, and the fixing plate 145 is located between adjacent disturbance plates 143. In the initial state, the fixing plate 145 is in contact with the first disturbance plate 143 located on its right. Filter holes are provided on both the fixing plate 145 and the disturbance plate 143. When the oil filter plate 13 moves upward, the L-shaped plate 142 drives the disturbance plate 143 to move towards the feed section 3. At this time, the disturbance plate 143 pushes the solid impurities on its right. The disturbance plate 143 moves away from the fixing plate 145 on its left, while the disturbance plate 143 moves closer to the first fixing plate 145 on its right. During this process, the disturbance plate 145... 43. The solid impurities are pushed towards the first fixed plate 145 on its right side. During the process of pushing the solid impurities, the disturbance plate 143 and the first fixed plate 145 on its right side squeeze the solid impurities, thereby squeezing out the residual rapeseed oil in the solid impurities and preventing residual rapeseed oil in the solid impurities, thus improving the oil yield. Filter holes are opened on both the fixed plate 145 and the disturbance plate 143, so that when the fixed plate 145 and the disturbance plate 143 squeeze the solid impurities, the rapeseed oil in the solid impurities can flow out from the fixed plate 145 and the disturbance plate 143, thus improving the oil yield. When the fixed plate 145 and the first disturbance plate 143 on its right side come into contact with each other, a fixing rod 146 is provided at the upper end of the fixed plate 145 and the disturbance plate 143 on the side near the oil filter plate 13, and a bending plate 147 is sleeved on the fixing rod 146 on the side near the fixed plate 145 and the oil filter plate 13. A crease is opened in the middle of the bending plate 147, and the bending plate 147 can be folded along the crease; and when the bending plate 147 is in the folded state, the bending plate 147 is located above the oil filter plate 13; and when the fixed plate 145 and the first disturbance plate 143 on its right side come into contact with each other, a fixing rod 146 is provided at the upper end of the side of the fixed plate 145 and the disturbance plate 143 near the oil filter plate 13, and a bending plate 147 is sleeved on the first disturbance plate 143 on the right side of the fixed plate 145 and the disturbance plate 143 near the oil filter plate 13. When the disturbance plates 143 move away from each other, they move closer to the first fixed plate 145 on their right. This causes the disturbance plates 143 to push the solid impurities closer to the first fixed plate 145 on their right, thus squeezing the rapeseed oil in the solid impurities. During this process, since one end of the bending plate 147 is fitted onto the fixing rod 146 on the disturbance plate 143 and the other end is fitted onto the fixing rod 146 on the upper end of the fixed plate 145, the disturbance plates 143 move closer to the first fixed plate 145 on their right, thus squeezing the rapeseed oil in the solid impurities. The moving plate 143 drives the bending plate 147 to unfold, causing the bending plate 147 to rotate on the two fixed rods 146. Since the oil filter plate 13 moves upward when the bending plate 147 extends, the bending plate 147 simultaneously slides upward on the fixed rods 146, thus sealing the gap between the fixed plate 145 and the first disturbance plate 143 on its right side, preventing solid impurities from entering between them. Furthermore, when the disturbance plate 143 resets, the oil filter plate 13 moves downward, during which the disturbance plate 143 will... The bending plate 147 is pushed, causing it to fold. During this process, the bending plate 147 moves along the edge of the oil filter plate 13 near the collection box 14 and slides downward on the fixed plate 145. When the bending plate 147 moves along the edge of the oil filter plate 13 near the collection box 14, the folding of the bending plate 147 pushes the solid impurities on the edge of the oil filter plate 13, thereby pushing the solid impurities at the edge of the oil filter plate 13 into the collection box 14, thus improving the collection efficiency of the collection box 14 for solid impurities.

[0017] Example 3: like Figures 1 to 10 As shown; the wall of the collection box 14 at the end away from the oil filter plate 13 is rotatably connected to the inner walls of both sides of the collection box 14. The bottom wall of the collection box 14 is provided with multiple placement slots 16. The placement slots 16 are located in the gap between the disturbance plate 143 and the first fixed plate 145 located on its right side. The placement slots 16 are provided with placement plates 161 inside. One end of the placement plate 161 is connected to the inner wall of the collection box 14 at the side away from the oil filter plate 13. When the collection box 14 at the side away from the oil filter plate 13 rotates, the placement plate 161 rotates synchronously. The specific workflow is as follows; Based on the above embodiment, the wall of the collection box 14 away from the oil filter plate 13 is rotatably connected to the two side walls of the collection box 14. A placement groove 16 is formed on the bottom wall of the collection box 14, located in the gap between the disturbance plate 143 and the first fixed plate 145 on its right. Since filter holes are formed on the lower inner wall of the collection box 14, the lower inner wall of the placement groove 16 also has filter holes. A placement plate 161 is installed in the placement groove 16, with filter holes simultaneously formed on it. The placement plate 161 is located between the disturbance plate 143 and the first fixed plate 145 on its right. When the disturbance plate 143 slides back and forth in the collection box 14, it slides on the placement plate 161. After oil pressing is completed, the process... When the operator collects solid impurities in the collection box 14, the filter plate 13 and the disturbance plate 143 are reset. At this time, the solid impurities are located between the disturbance plate 143 and the first fixed plate 145 on its right. The operator can then rotate the box wall of the collection box 14 away from the filter plate 13. When the box wall of the collection box 14 away from the filter plate 13 is rotated, the box wall of the collection box 14 away from the filter plate 13 will drive the placement plate 161 to rotate, so that the placement plate 161 will rotate between the disturbance plate 143 and the first fixed plate 145 on its right. The two sides of the placement plate 161 will scrape the inner walls of the disturbance plate 143 and the first fixed plate 145 on its right, thereby pushing out the solid impurities in the collection box 14. Then, the solid impurities in the collection box 14 are collected.

[0018] Example 4: like Figures 2 to 10 As shown; a rectangular frame 17 is slidably connected to the lower end of the oil filter plate 13. Multiple isolation rods 171 are provided inside the rectangular frame 17, which divide the interior of the rectangular frame 17 into multiple rectangular spaces; connecting rods 172 are hinged to the lower ends of both sides of the rectangular frame 17. The lower ends of the connecting rods 172 are hinged to the upper end of the oil receiving tray 11 on the side away from the collection box 14. In the initial state, the connecting rods 172 are inclined. When the oil filter plate 13 moves upward, the connecting rods 172 drive the rectangular frame 17 to move away from the collection box 14 at the lower end of the oil filter plate 13. The specific workflow is as follows; Furthermore, a rectangular frame 17 is slidably connected to the lower end of the oil filter plate 13, and an isolation rod 171 is provided inside the rectangular frame 17, dividing the interior of the rectangular frame 17 into multiple rectangular spaces. Connecting rods 172 are provided at the lower ends of both sides of the rectangular frame 17, and the lower ends of the connecting rods 172 are hinged to the end of the oil receiving tray 11 away from the collection box 14. Initially, the connecting rods 172 are in an inclined state. Based on the above embodiment one, when the oil filter plate 13 moves upward, it drives the rectangular frame 17 to move upward synchronously, causing the rectangular frame 17 to pull the connecting rods 172, causing the connecting rods 172 to rotate. The angle between the connecting rods 172 and the rectangular frame 17 increases, thereby increasing the angle between the rectangular frame 17 and the rectangular frame 17. The rectangular frame 17 slides at the lower end of the oil filter plate 13 away from the collection box 14. When the oil filter plate 13 moves downward, the rectangular frame 17 moves downward simultaneously, pressing against the connecting rod 172. The connecting rod 172 rotates, causing the rectangular frame 17 to move closer to the collection box 14. This allows the rectangular frame 17 to reciprocate at the lower end of the oil filter plate 13. When the oil filter plate 13 filters rapeseed oil, the rectangular frame 17 and the internal isolation rod 171 slide back and forth on the lower end of the oil filter plate 13, preventing rapeseed oil from sticking to the lower end of the oil filter plate 13 and slowing down the rate at which the rapeseed oil falls. This increases the rate at which the rapeseed oil falls from the oil filter plate 13, thereby improving production efficiency.

[0019] 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 the present invention is defined by the appended claims and their equivalents.

Claims

1. A cold-pressing oil processing system for rapeseed, the system comprising an oil press, the oil press comprising a body (1), an operation box (2), a feeding section (3), a pressing section (4), a pressing cage (5), a cake discharge section (6), and a cake conveying section (7); the operation box (2) is disposed on the body (1); the feeding section (3) is disposed at one end of the body (1) away from the operation box (2); the pressing section (4) is disposed between the feeding section (3) and the operation box (2); the pressing cage (5) is disposed on the outside of the pressing section (4); the cake discharge section (6) is disposed at one end of the pressing section (4) near the operation box (2); the cake conveying section (7) is disposed on the body (1) and located below the pressing section (4); characterized in that, The body (1) also includes: The oil receiving tray (11) is set on the machine body (1) and located above the cake conveying section (7) and below the pressing section (4); the oil receiving tray (11) is set at an angle. There are two mounting plates (12), and the two mounting plates (12) are respectively set on the upper sides of the oil receiving tray (11). The two mounting plates (12) are provided with mounting grooves at the ends that are close to each other, and telescopic devices (121) are provided inside the mounting grooves. An oil filter plate (13) is inclined between two mounting plates (12) and parallel to the mounting plates (12); the oil filter plate (13) is located above the oil receiving tray (11); protrusions (131) are provided on both sides of the oil filter plate (13), the protrusions (131) are located in the mounting groove, and the protrusions (131) are connected to the telescopic end of the telescopic device (121); A collection box (14) is set between two mounting plates (12), and the collection box (14) is located at the lower end of the mounting plate (12) at a lower horizontal height; the bottom of the collection box (14) is the same as the filter plate (13) with a filter hole structure, and the collection box (14) is located above the filter plate (13).

2. The cold pressing oil extraction system for rapeseed as described in claim 1, characterized in that: A pivot is provided between the two mounting plates (12), and a torsion spring is provided at the connection between the pivot and the two mounting plates (12). A hinge plate (122) is provided on the pivot. The pivot and the hinge plate (122) are located above the oil filter plate (13). In the initial state, the hinge plate (122) is inclined downward, and there is a gap between the lower end of the hinge plate (122) and the upper end of the oil filter plate (13).

3. The cold pressing oil extraction system for rapeseed as described in claim 1, characterized in that: The collection box (14) is fixed between two mounting plates (12), and an L-shaped groove (141) is provided on the inner wall of the collection box (14) located directly below the oil filter plate (13). The lower end of the L-shaped groove (141) is connected to the interior of the collection box (14), and an L-shaped plate (142) is slidably connected inside the L-shaped groove (141). A disturbance plate (143) is provided on one side of the L-shaped plate (142), and the disturbance plate (143) is located inside the collection box (14). A connecting plate (144) is hinged to the upper end of the L-shaped plate (142). In the initial state, the connecting plate (144) is inclined, and the upper end of the connecting plate (144) is hinged to the lower end of the oil filter plate (13). When the oil filter plate (13) moves up and down, the oil filter plate (13) pulls the connecting plate (144).

4. A cold pressing oil extraction system for rapeseed as described in claim 3, characterized in that: The collection box (14) is equipped with a fixing plate (145) inside. The fixing plate (145) is located between adjacent disturbance plates (143). In the initial state, each fixing plate (145) is in contact with the first disturbance plate (143) on its right.

5. A cold pressing system for rapeseed as described in claim 4, characterized in that: Both the fixed plate (145) and the disturbance plate (143) are provided with filter holes.

6. A cold pressing oil extraction system for rapeseed as described in claim 5, characterized in that: A fixing rod (146) is provided above the end of the fixing plate (145) and the disturbance plate (143) near the oil filter plate (13). A bending plate (147) is sleeved on the fixing rod (146), and the two ends of the bending plate (147) are respectively sleeved on the fixing rod (146) at the upper end of the disturbance plate (143) and the fixing plate (145) that are close to each other. In the initial state, the bending plate (147) is located between the fixing plate (145) and the disturbance plate (143) that are in contact with each other. When the L-shaped plate (142) moves, the disturbance plate (143) moves and drives the bending plate (147) to fold and extend.

7. A cold pressing oil extraction system for rapeseed as described in claim 6, characterized in that: The wall of the collection box (14) at the end away from the oil filter plate (13) is rotatably connected to the inner walls on both sides of the collection box (14). The bottom wall of the collection box (14) is provided with multiple placement slots (16). The placement slots (16) are located in the gap between the disturbance plate (143) and the first fixed plate (145) located on its right side. The placement slots (16) are provided with placement plates (161). One end of the placement plates (161) is connected to the inner wall of the collection box (14) at the side away from the oil filter plate (13). When the side of the collection box (14) away from the oil filter plate (13) rotates, the placement plates (161) rotate synchronously.

8. A cold pressing system for rapeseed as described in claim 3, characterized in that: A rectangular frame (17) is slidably connected to the lower end of the oil filter plate (13). Multiple isolation rods (171) are provided inside the rectangular frame (17). The isolation rods (171) divide the interior of the rectangular frame (17) into multiple rectangular spaces. Connecting rods (172) are hinged to the lower ends of both sides of the rectangular frame (17). The lower end of the connecting rod (172) is hinged to the upper end of the side of the oil receiving tray (11) away from the collection box (14). In the initial state, the connecting rod (172) is inclined. When the oil filter plate (13) moves upward, the connecting rod (172) drives the rectangular frame (17) to move away from the collection box (14) at the lower end of the oil filter plate (13).

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