Edible rapeseed oil squeezing device and squeezing method

Abstract

The edible rapeseed oil squeezing device comprises a machine box, the top of the machine box is provided with a feeding port, the interior of the machine box is sequentially provided with a first cavity, a second cavity and a third cavity from top to bottom, and the bottom of the machine box is provided with a discharging port; the squeezing mechanism comprises a limiting shell, an arc-shaped shell, a limiting block, a pushing end and a driving end; the limiting shell is arranged in the first cavity, and a first-stage squeezing end is arranged in the first cavity; the arc-shaped shell is arranged in the second cavity, and a second-stage squeezing end is arranged in the second cavity; the limiting block is arranged in the third cavity, a screening end capable of shaking up and down is arranged on the limiting block, and the pushing end is arranged on the lower portion of the screening end. The rapeseed oil squeezing device has the beneficial effects that the technical problems that in the prior art, rapeseed oil squeezing equipment is low in rapeseed oil squeezing efficiency, other impurities exist in rapeseed oil in follow-up processing, and the follow-up rapeseed oil product quality is affected are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of rapeseed oil processing, and particularly relates to an edible rapeseed oil pressing device and a pressing method. Background Art

[0002] Rapeseed oil is commonly known as rapeseed oil and also called coriander oil. It is a transparent or semi-transparent liquid obtained by pressing rapeseed seeds. It is one of the main edible oils in China, mainly produced in the Yangtze River Basin, southwest, northwest and other places, and ranks first in the world in terms of output. The human body has a high absorption rate of rapeseed oil. Unsaturated fatty acids such as linoleic acid and nutritional components such as vitamin E contained in it can be well absorbed by the body, and it has a certain effect of softening blood vessels and delaying aging;

[0003] In the Chinese patent application document CN115125057A, "A rapeseed oil pressing device and its pressing method" is proposed. The device includes a transmission frame and a pressing box. The transmission frame is arranged beside the pressing box. Multiple legs are arranged at the bottom of the pressing box. A guide groove is arranged inside the pressing box. A support plate is arranged inside the guide groove. Multiple roller rods are arranged on the support plate. The guide groove communicates with a crushing chamber arranged inside the pressing box. A rotating rod is arranged inside the crushing chamber. Multiple support rods are arranged on the outer wall of the rotating rod. Multiple cross rods cooperating with the support rods are arranged on the inner wall of the crushing chamber. A transmission hole is arranged at the bottom of the crushing chamber. A transmission rod is arranged inside the transmission hole. A pressing groove communicating with the transmission hole is arranged inside the pressing box. This device mainly solves the problem of the existing rapeseed oil pressing equipment. This device mainly solves the situation that the existing pressing equipment has a low pressing efficiency, resulting in easy waste of raw materials;

[0004] In the Chinese patent application document CN117002067A, "A high-clean rapeseed oil press and pressing method" is proposed. The device includes a base and a bracket. The top of the base is fixedly installed with the bottom of the bracket. An oil receiving groove is fixedly installed at the top of the base inside the bracket. An oil pressing cylinder is arranged inside the oil receiving groove. A collecting box is fixedly installed inside the base below the opening of the oil receiving groove. The bottom of the bracket is fixedly installed through a hydraulic cylinder. The movable end of the hydraulic cylinder is fixedly installed with a pressing head. For this high-clean rapeseed oil press and pressing method, a negative pressure is formed inside the vacuum pump box, and there is a sufficient pressure difference above and below the fine filter screen to ensure the rate of oil passing through the fine filter screen and the filter cake formed on the fine filter screen. A finer fine filter screen can be used under the condition of ensuring the filtration efficiency to achieve the fine filtration of edible oil;

[0005] Although the above two comparative documents have improved the pressing efficiency of rapeseed oil to a certain extent, they cannot effectively screen the pressed rapeseed oil, resulting in impurities remaining in the pressed liquid, which invisibly affects the product quality of rapeseed oil. Summary of the Invention

[0006] The object of the present invention is to overcome the above technical deficiencies and provide an edible rapeseed oil pressing device and a pressing method, so as to solve the technical problems in the prior art that the rapeseed oil pressing equipment has a low pressing efficiency for rapeseed oil, resulting in other impurities in the rapeseed oil during subsequent processing and affecting the quality of subsequent rapeseed oil products.

[0007] To achieve the above technical object, the present invention adopts the following technical solutions:

[0008] In the first aspect, the present invention provides an edible rapeseed oil pressing device, including:

[0009] A chassis, which is provided with a feeding port at the top, and is internally provided with a first chamber, a second chamber and a third chamber in sequence from top to bottom, and a discharging port at the bottom;

[0010] A pressing mechanism, which includes a limiting shell, an arc shell, a limiting block, a pushing end and a driving end; the limiting shell is arranged in the first chamber, and a primary pressing end is arranged in the first chamber; the arc shell is arranged in the second chamber, and a secondary pressing end is arranged in the second chamber; the limiting block is arranged in the third chamber, and a screening end that can vibrate up and down is arranged on the limiting block, the pushing end is arranged below the screening end, and the driving end is used to drive the primary pressing end, the secondary pressing end and the pushing end to operate;

[0011] A material receiving mechanism, which includes a frame and a conveyor belt, the conveyor belt is arranged below the discharging port through the frame, and a cylinder body is arranged on the conveyor belt, and a monitoring end for monitoring the position and liquid level height of the cylinder body is also arranged on the frame.

[0012] In some embodiments, the primary pressing end includes at least two first shafts, the two first shafts are horizontally arranged between the limiting shells, and a first pressing roller is connected to any one of the first shafts, and one end of the first shaft is connected to the driving end.

[0013] In some embodiments, the secondary pressing end includes a second shaft and a grinding roller; the second shaft is axially arranged in the arc shell, and a grinding roller is connected to the second shaft, one end of the second shaft is connected to the driving end, and a plurality of holes are opened on the arc shell.

[0014] In some embodiments, the screening end includes a screen frame and a plurality of columns; the plurality of columns are equidistantly arranged on the limiting block, and the screen frame is slidably connected to the columns, spring strips are wound around the columns at the lower ends on both sides of the screen frame, a convex block is arranged in the middle of the screen frame, and a plurality of screen holes are opened on the screen frame on both sides of the convex block.

[0015] In some embodiments, the pushing end includes a third shaft body; the third shaft body is arranged at the lower end of the sieve frame, and a pushing block is fixed on the third shaft body, and the end of the third shaft body is connected to the driving end.

[0016] In some embodiments, the driving end includes a first motor, a gear set, a first transmission end, and a second transmission end; the first motor is connected to one of the first shaft bodies, and the two first shaft bodies are connected through the gear set, one end of the first shaft body is connected to the second shaft body through the first transmission end, and the second shaft body is connected to the third shaft body through the second transmission end.

[0017] In some embodiments, the gear set includes a first gear and a second gear; the two first shaft bodies penetrate through the chassis and are respectively connected with the first gear and the second gear, and the first gear and the second gear are meshed; the first transmission end includes a first transmission wheel, a second transmission wheel, and a first belt body; the end of one of the first shaft bodies penetrates through the back of the chassis and is connected with the first transmission wheel, the end of the second shaft body penetrates through the chassis and is connected with the second transmission wheel, and the first belt body is arranged between the first transmission wheel and the second transmission wheel; the second transmission end includes a third transmission wheel, a fourth transmission wheel, and a second belt body; one end of the second shaft body far away from the second transmission wheel is further connected with the third transmission wheel, the fourth transmission wheel is connected to the end of the third shaft body, and the second belt body is arranged between the third transmission wheel and the fourth transmission wheel.

[0018] In some embodiments, the material receiving mechanism further includes a conveying motor and a convex plate, the conveying motor is arranged outside the frame body and is used for driving the conveyor belt to operate, the convex plates are symmetrically arranged on the frame body, and a monitoring end is installed on the convex plate.

[0019] In some embodiments, the monitoring end includes an infrared sensor and a panoramic camera. An infrared sensor is installed on the convex plate, a panoramic camera is installed at the lower end of the chassis and near the discharge port, a control panel is installed on the outer wall of the chassis, and a single-chip microcomputer is arranged inside the control panel.

[0020] In some embodiments, the following steps are included:

[0021] S1. Select fresh rapeseeds without mildew and odor, put them into boiling water, stir evenly, let them stand for layering, after soaking for 25 minutes, take them out and drain, and sieve out the sundries in the rapeseeds;

[0022] S2. Put the cleaned rapeseeds into a frying pan, heat up to 135 °C and then start stir-frying. After there is a cracking sound of the rapeseeds in the pan, control the temperature at 125 °C. When the rapeseeds are crushed by hand and turn golden yellow, they can be taken out of the pan;

[0023] S3. Put the stir-fried rapeseeds into the machine case, and feed the materials from the feed inlet. After the primary pressing by the primary pressing end in the first chamber, the materials enter the second chamber and undergo secondary pressing, and finally fall into the third chamber for screening. The screened rapeseed oil drips into the transparent cylinder on the conveyor belt, and the liquid level height inside the cylinder can be detected through the monitoring end.

[0024] S4. Collect the cylinders centrally through the conveyor belt, then keep them warm and static for more than 5 hours, conduct centrifugal treatment, take the supernatant, heat the supernatant to 85 °C, and conduct deacidification treatment of the oil; finally, keep it static at room temperature for 7 hours, remove the precipitate, and obtain refined rapeseed oil.

[0025] Compared with the prior art, for an edible rapeseed oil pressing device provided by the present invention, the staff feeds the materials into the first chamber through the feed inlet, and the raw materials inside the limiting shell are primarily pressed by the primary pressing end. The pressed raw materials fall into the second chamber, and the raw materials are secondarily pressed by the secondary pressing end. An arc-shaped shell is arranged inside the second chamber, which is convenient for the accumulation of materials and makes it more convenient to contact with the secondary pressing end, thereby ensuring the pressing efficiency. The raw materials after secondary pressing fall into the third chamber and are screened by the screening end. During the screening process, the pushing end is used to push the screening end to vibrate up and down, thereby ensuring the screening efficiency. Among them, the primary pressing end, the secondary pressing end, and the pushing end are all driven by the driving end. And the pressed raw materials finally are discharged from the discharge port and are packaged by the transparent cylinders on the conveyor belt, which is convenient for further processing later. A monitoring end is arranged on the conveyor belt to monitor the liquid level height inside each transparent cylinder, and at the same time ensure that the cylinder accurately stays below the discharge port. Description of the Drawings

[0026] Figure 1 is the overall schematic diagram of the edible rapeseed oil pressing device provided by the embodiment of the present invention;

[0027] Figure 2 is the front schematic diagram of the edible rapeseed oil pressing device provided by the embodiment of the present invention;

[0028] Figure 3 is the schematic diagram of the material receiving mechanism of the edible rapeseed oil pressing device provided by the embodiment of the present invention;

[0029] Figure 4 is the schematic diagram of the internal structure of the machine case of the edible rapeseed oil pressing device provided by the embodiment of the present invention;

[0030] Figure 5 is the internal schematic diagram of the control panel of the edible rapeseed oil pressing device provided by the embodiment of the present invention;

[0031] Figure 6It is the overall schematic diagram of the edible rapeseed oil pressing device provided by the embodiment of the present invention.

[0032] Explanation of reference numerals: 1, chassis; 11, feed inlet; 12, first chamber; 13, second chamber; 14, third chamber; 15, discharge port; 2, pressing mechanism; 3, limiting shell; 31, primary pressing end; 311, first shaft body; 312, first pressing roller; 4, arc-shaped shell; 41, secondary pressing end; 411, second shaft body; 412, grinding roller; 5, limiting block; 51, screening end; 52, screen frame; 521, protruding block; 53, column body; 531, spring strip; 6, pushing end; 61, third shaft body; 611, pushing block; 7, driving end; 71, first motor; 72, gear set; 721, first gear; 722, second gear; 73, first transmission end; 731, first transmission wheel; 732, second transmission wheel; 733, first belt; 74, second transmission end; 741, third transmission wheel; 742, fourth transmission wheel; 743, second belt; 8, material receiving mechanism; 81, frame; 82, conveyor belt; 821, conveyor motor; 83, convex plate; 9, monitoring end; 91, infrared sensor; 92, panoramic camera; 10, control panel; 101, single-chip microcomputer. Detailed implementation manners

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] In order to solve the technical problem in the prior art that the rapeseed oil pressing equipment has a low pressing efficiency for rapeseed oil, resulting in other impurities in the rapeseed oil during subsequent processing and affecting the quality of the subsequent rapeseed oil products, the present invention provides an edible rapeseed oil pressing device, which can improve the pressing efficiency of the equipment for rapeseed oil and ensure the final product quality of rapeseed oil.

[0035] It should be noted that the edible rapeseed oil pressing device described in the present invention is used for but not limited to rapeseed oil processing, etc. For the convenience of description, in the present invention, only the case where the edible rapeseed oil pressing device is applied to rapeseed oil processing is taken as an example for description, and the principle of the edible rapeseed oil pressing device applied to other types of equipment is substantially the same as that applied to rapeseed oil processing, and will not be elaborated here one by one.

[0036] Please refer to Figure 1 , Figure 1The following is a schematic structural diagram of an edible rapeseed oil pressing device in an embodiment of the present invention. An edible rapeseed oil pressing device includes a machine case 1, which is provided with a feed inlet 11 at the top, and is internally provided with a first chamber 12, a second chamber 13, and a third chamber 14 in sequence from top to bottom, and a discharge outlet 15 is provided at the bottom;

[0037] A pressing mechanism 2, which includes a limiting shell 3, an arc-shaped shell 4, a limiting block 5, a pushing end 6, and a driving end 7; the limiting shell 3 is arranged in the first chamber 12, and a primary pressing end 31 is arranged in the first chamber 12; the arc-shaped shell 4 is arranged in the second chamber 13, and a secondary pressing end 41 is arranged in the second chamber 13; the limiting block 5 is arranged in the third chamber 14, and a screening end 51 that can vibrate up and down is arranged on the limiting block 5, the pushing end 6 is arranged below the screening end 51, and the driving end 7 is used to drive the operation of the primary pressing end 31, the secondary pressing end 41, and the pushing end 6;

[0038] A material receiving mechanism 8, which includes a frame body 81 and a conveyor belt 82. The conveyor belt 82 is arranged below the discharge outlet 15 through the frame body 81, and a cylinder body is arranged on the conveyor belt 82. A monitoring end 9 for monitoring the position and liquid level height of the cylinder body is also arranged on the frame body 81.

[0039] In this embodiment, the staff puts the material into the first chamber 12 through the feed inlet 11, and the primary pressing is carried out on the material inside the limiting shell 3 through the primary pressing end 31. The pressed raw material falls into the second chamber 13, and the secondary pressing is carried out on the raw material through the secondary pressing end 41. An arc-shaped shell 4 is arranged inside the second chamber 13, which is convenient for the material to accumulate and is more convenient to contact with the secondary pressing end 41, so as to ensure the pressing efficiency. The raw material after secondary pressing falls into the third chamber 14 and is screened through the screening end 51. During the screening process, the pushing end 6 is used to push the screening end 51 to vibrate up and down, so as to ensure its screening efficiency. Among them, the primary pressing end 31, the secondary pressing end 41, and the pushing end 6 are all driven by the driving end 7, and the pressed raw material finally discharges from the discharge outlet 15 and is packaged in the transparent cylinder bodies on the conveyor belt 82, which is convenient for further processing later. A monitoring end 9 is arranged on the conveyor belt 82 to monitor the liquid level height inside each transparent cylinder body, and at the same time ensure that the cylinder body accurately stays below the discharge outlet 15.

[0040] In one of the embodiments, please refer to Figure 4, to improve the pressing efficiency of the pressing mechanism 2, the primary pressing end 31 includes at least two first shafts 311. The two first shafts 311 are horizontally arranged between the limiting shells 3, and a first pressing roller 312 is connected to any one of the first shafts 311. One end of the first shaft 311 is connected to the driving end 7. The secondary pressing end 41 includes a second shaft 411 and a grinding roller 412. The second shaft 411 is axially arranged in the arc-shaped shell 4, and a grinding roller 412 is connected to the second shaft 411. One end of the second shaft 411 is connected to the driving end 7, and a plurality of holes are formed in the arc-shaped shell 4.

[0041] In this embodiment, the number of the limiting shells 3 is two, and they are symmetrically arranged in the first chamber 12. The upper end of each limiting shell 3 is a slope structure, which is convenient for material diversion and avoids material accumulation. Secondly, the two first shafts 311 drive the two first pressing rollers 312 to rotate towards each other, which can perform primary pressing on the material, and the pressed material falls centrally into the arc-shaped shell 4. The second shaft 411 drives the grinding roller 412 to rotate, and the grinding roller 412 performs secondary pressing on the material and finally discharges it outward through the holes.

[0042] In one of the embodiments, please refer to Figure 1 - Figure 4 , to facilitate the screening of the pressed material, the screening end 51 includes a screen frame 52 and a plurality of columns 53. The plurality of columns 53 are equidistantly arranged on the limiting block 5, and the screen frame 52 is slidably connected to the columns 53. Spring strips 531 are wound around the columns 53 at the lower ends on both sides of the screen frame 52. A convex block 521 is arranged in the middle of the screen frame 52, and a plurality of screen holes are formed in the screen frame 52 on both sides of the convex block 521. The pushing end 6 includes a third shaft 61. The third shaft 61 is arranged at the lower end of the screen frame 52, and a pushing block 611 is fixed on the third shaft 61. The end of the third shaft 61 is connected to the driving end 7.

[0043] In this embodiment, by arranging the limiting blocks 5 on both sides of the chassis 1 and arranging a plurality of columns 53 on the limiting blocks 5, it is convenient to slidably connect the entire screen frame 52 to the columns 53. Spring strips 531 are wound around the columns 53. A third shaft 61 is arranged at the lower end of the screen frame 52, and a pushing block 611 is fixed on the third shaft 61. The third shaft 61 drives the pushing block 611 to rotate, and the pushing block 611 pushes the screen frame 52 upward, so that the screen frame 52 vibrates up and down on the columns 53, thereby achieving the effect of the screening end 51 for the material.

[0044] In one of the embodiments, please refer to Figure 1 - Figure 4, to save manufacturing costs, the driving end 7 includes a first motor 71, a gear set 72, a first transmission end 73 and a second transmission end 74; the first motor 71 is connected to one of the first shaft bodies 311, and the two first shaft bodies 311 are connected by the gear set 72. One end of the first shaft body 311 is connected to the second shaft body 411 through the first transmission end 73, and the second shaft body 411 is connected to the third shaft body 61 through the second transmission end 74. The gear set 72 includes a first gear 721 and a second gear 722; the two first shaft bodies 311 penetrate through the chassis 1 and are respectively connected with the first gear 721 and the second gear 722, and the first gear 721 and the second gear 722 are meshed; the first transmission end 73 includes a first transmission wheel 731, a second transmission wheel 732 and a first belt body 733; the end of one of the first shaft bodies 311 penetrates through the back surface of the chassis 1 and is connected with the first transmission wheel 731, the end of the second shaft body 411 penetrates through the chassis 1 and is connected with the second transmission wheel 732, and a first belt body 733 is arranged between the first transmission wheel 731 and the second transmission wheel 732. The second transmission end 74 includes a third transmission wheel 741, a fourth transmission wheel 742 and a second belt body 743; one end of the second shaft body 411, which is far away from the second transmission wheel 732, is also connected with the third transmission wheel 741, the fourth transmission wheel 742 is connected to the end of the third shaft body 61, and a second belt body 743 is arranged between the third transmission wheel 741 and the fourth transmission wheel 742.

[0045] In this embodiment, one of the first shaft bodies 311 is driven to operate by the first motor 71. The front ends of the two first shaft bodies 311 are respectively connected with the first gear 721 and the second gear 722. When the first motor 71 operates, the two first shaft bodies 311 drive the first pressing roller 312 to rotate towards each other, so as to perform primary pressing on the material. The end of one of the first shaft bodies 311 is connected with the first transmission wheel 731, the end of the second shaft body 411 is connected with the second transmission wheel 732, and through the transmission of the first belt body 733, the second shaft body 411 can drive the grinding roller 412 to grind the material. The end of the second shaft body 411 is also connected with the third transmission wheel 741, the fourth transmission wheel 742 is connected to the third shaft body 61, and the third transmission wheel 741 and the fourth transmission wheel 742 are connected by the second belt body 743, so that the third shaft body 61 can drive the pushing block 611 to push the sieve frame 52, so that it is in a state of shaking up and down.

[0046] In one of the embodiments, please refer to Figure 1 - Figure 6, for facilitating the monitoring of the liquid level height and the current position of the transparent cylinder, the material receiving mechanism 8 further includes a conveying motor 821 and a convex plate 83. The conveying motor 821 is arranged outside the frame body 81 and is used to drive the conveyor belt 82 to operate. The convex plates 83 are symmetrically arranged on the frame body 81, and a monitoring end 9 is installed on the convex plate 83. The monitoring end 9 includes an infrared sensor 91 and a panoramic camera 92. Among them, the infrared sensor 91 is installed on the convex plate 83, and the panoramic camera 92 is installed at the lower end of the chassis 1 and near the discharge port 15. A control panel 10 is installed on the outer wall of the chassis 1, and a single-chip microcomputer 101 is arranged inside the control panel 10.

[0047] In this embodiment, the infrared sensor 91 is installed on the convex plate 83 to monitor the liquid level height inside the cylinder, and the panoramic camera 92 is arranged at the lower end of the chassis 1 to monitor the current position of the transparent cylinder, so as to facilitate controlling the start and stop of the conveying motor 821, and the single-chip microcomputer 101 can effectively control the above-mentioned electronic devices.

[0048] In one of the embodiments, please refer to Figure 1 - Figure 6 , which specifically includes the following steps:

[0049] S1. Select fresh rapeseeds without mildew and odor, put them into boiling water, stir evenly, let them stand for stratification, after soaking for 25 minutes, fish them out and drain, and sieve out the sundries in the rapeseeds;

[0050] S2. Put the cleaned rapeseeds into a frying pan, heat up to 135 °C and then start stir-frying until there is a cracking sound of the rapeseeds in the pan, then control the temperature at 125 °C, and the rapeseeds can be taken out of the pan when they are crushed by hand and turn golden yellow;

[0051] S3. Put the stir-fried rapeseeds into the chassis 1, and feed the materials from the feed port 11. After being initially pressed by the primary pressing end 31 in the first chamber 12, they enter the second chamber 13 and undergo secondary pressing, and finally fall into the third chamber 14 for screening. The screened rapeseed oil drips into the transparent cylinder on the conveyor belt 82, and the liquid level height inside the cylinder can be detected through the monitoring end 9;

[0052] S4. Collect the cylinders concentratedly through the conveyor belt 82, then keep them warm and stand for more than 5 hours, perform centrifugal treatment, take the supernatant, heat the supernatant to 85 °C, and perform deacidification treatment on the oil; finally, stand at room temperature for 7 hours, remove the precipitate, and obtain refined rapeseed oil.

[0053] For a better understanding of the present invention, the following is combined with Figures 1 to 6The technical solution of the present invention is described in detail: Select fresh rapeseeds without mildew and odor, put them into boiling water, stir evenly, let them stand for stratification, after soaking for 25 minutes, fish them out and drain, and sieve out the sundries in the rapeseeds. The erucic acid content in the rapeseeds is greater than 30%, and the moisture content is less than 7%. Put the cleaned rapeseeds into a frying pan, heat up to 135 °C and then start stir-frying. When there is a cracking sound of the rapeseeds in the pan, control the temperature at 125 °C. When the rapeseeds are crushed by hand and turn golden yellow, they can be taken out of the pan. The frying pan is a jacketed pan, and the jacket cavity of the jacketed pan is filled with straw ash or fine sand to make the pot body evenly heated. Put the stir-fried rapeseeds into the machine box 1, and put the material into the first chamber 12 from the feed port 11. Drive one of the first shaft bodies 311 to rotate through the first motor 71. The front ends of the two first shaft bodies 311 are respectively connected with a first gear 721 and a second gear 722. When the first motor 71 operates, the two first shaft bodies 311 drive the first pressure rollers 312 to rotate towards each other, so as to conduct primary pressing on the material. One end of one of the first shaft bodies 311 is connected with a first transmission wheel 731, and the end of the second shaft body 411 is connected with a second transmission wheel 732, and they are driven by a first belt body 733, so that the second shaft body 411 can drive the grinding roller 412 to grind the material. The grinding roller 412 presses and grinds the material, and makes the liquid flow downward from the holes and drip onto the sieve frame 52. One end of the second shaft body 411 is also connected with a third transmission wheel 741, and the third shaft body 61 is connected with a fourth transmission wheel 742. The third transmission wheel 741 and the fourth transmission wheel 742 are connected by a second belt body 743, so that the third shaft body 61 can drive the pushing block 611 to push the sieve frame 52 to make it in a state of shaking up and down. The sieve frame 52 separates impurities and liquid, and flows out through the discharge port 15. The conveyor belt 82 is controlled by the conveyor motor 821 to make the transparent cylinder body located below the discharge port 15. An infrared sensor 91 is installed on the convex plate 83 to monitor the liquid level height inside the cylinder body, and a panoramic camera 92 is arranged at the lower end of the machine box 1 to monitor the current position of the transparent cylinder body, so as to facilitate controlling the start and stop of the conveyor motor 821. The material cylinders are centrally collected through the conveyor belt 82, then kept warm and static for more than 5 hours, centrifuged, the supernatant is taken, and the supernatant is heated to 85 °C for degumming treatment of the oil; finally, after standing at room temperature for 7 hours, the precipitate is removed to obtain refined rapeseed oil.

[0054] The specific implementation manners of the present invention described above do not constitute a limitation on the protection scope of the present invention. Any other corresponding changes and deformations made according to the technical concept of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An edible rapeseed oil pressing device, characterized in that, Comprising: A chassis, having a feed inlet at its top, internally provided with a first chamber, a second chamber, and a third chamber in sequence from top to bottom, and a discharge outlet at its bottom; A pressing mechanism, which includes a limiting shell, an arc-shaped shell, a limiting block, a pushing end, and a driving end; the limiting shell is arranged in the first chamber, and a primary pressing end is arranged in the first chamber; the arc-shaped shell is arranged in the second chamber, and a secondary pressing end is arranged in the second chamber; the limiting block is arranged in the third chamber, and a screening end that can vibrate up and down is arranged on the limiting block, the pushing end is arranged below the screening end, and the driving end is used to drive the operation of the primary pressing end, the secondary pressing end, and the pushing end; A material receiving mechanism, which includes a frame and a conveyor belt, the conveyor belt is arranged below the discharge outlet through the frame, and a cylinder body is arranged on the conveyor belt, and a monitoring end for monitoring the position and liquid level height of the cylinder body is also arranged on the frame.

2. The edible rapeseed oil pressing device according to claim 1, characterized in that: The primary pressing end includes at least two first shaft bodies, the two first shaft bodies are horizontally arranged between the limiting shells, and a first pressing roller is connected to any one of the first shaft bodies, and one end of the first shaft body is connected to the driving end.

3. The edible rapeseed oil pressing device according to claim 2, characterized in that: The secondary pressing end includes a second shaft body and a grinding roller; the second shaft body is axially arranged in the arc-shaped shell, and a grinding roller is connected to the second shaft body, one end of the second shaft body is connected to the driving end, and a number of holes are opened on the arc-shaped shell.

4. The edible rapeseed oil pressing device according to claim 3, characterized in that: The screening end includes a sieve frame and a number of columns; the number of columns are equidistantly arranged on the limiting block, and the sieve frame is slidably connected to the columns, spring strips are wound around the columns at the lower ends on both sides of the sieve frame, a raised block is arranged in the middle of the sieve frame, and a number of sieve holes are opened on the sieve frame on both sides of the raised block.

5. The edible rapeseed oil pressing device according to claim 4, characterized in that: The pushing end includes a third shaft body; the third shaft body is arranged at the lower end of the sieve frame, and a pushing block is fixed on the third shaft body, and the end of the third shaft body is connected to the driving end.

6. The edible rapeseed oil pressing device according to claim 5, wherein: The driving end includes a first motor, a gear set, a first transmission end, and a second transmission end; the first motor is connected to one of the first shaft bodies, and the two first shaft bodies are connected through the gear set, one end of the first shaft body is connected to the second shaft body through the first transmission end, and the second shaft body is connected to the third shaft body through the second transmission end.

7. An edible rapeseed oil pressing device according to claim 6, characterized in that: The gear set includes a first gear and a second gear; two of the first shaft bodies penetrate through the chassis and are respectively connected with the first gear and the second gear, and the first gear and the second gear are meshed; the first transmission end includes a first transmission wheel, a second transmission wheel and a first belt; the end of one of the first shaft bodies penetrates through the back of the chassis and is connected with the first transmission wheel, the end of the second shaft body penetrates through the chassis and is connected with the second transmission wheel, and the first belt is arranged between the first transmission wheel and the second transmission wheel; the second transmission end includes a third transmission wheel, a fourth transmission wheel and a second belt; at one end of the second shaft body far away from the second transmission wheel, a third transmission wheel is further connected, the fourth transmission wheel is connected to the end of the third shaft body, and the second belt is arranged between the third transmission wheel and the fourth transmission wheel.

8. The edible rapeseed oil pressing device according to claim 1, characterized in that: The material receiving mechanism further includes a conveying motor and a convex plate, the conveying motor is arranged outside the frame body and is used to drive the conveyor belt to operate, the convex plates are symmetrically arranged on the frame body, and a monitoring end is installed on the convex plate.

9. The edible rapeseed oil pressing device according to claim 8, wherein: The monitoring end includes an infrared sensor and a panoramic camera, wherein the infrared sensor is installed on the convex plate, and the panoramic camera is installed at the lower end of the chassis near the discharge port, and a control panel is installed on the outer wall of the chassis, and a single-chip microcomputer is arranged inside the control panel.

10. A pressing method for an edible rapeseed oil pressing device, applicable to the edible rapeseed oil pressing device described in any one of claims 1-9, characterized in that: It includes the following steps: S1. Select fresh rapeseeds without mildew and odor, put them into boiling water, stir evenly, let them stand for layering, after soaking for 25 minutes, fish them out and drain, and sieve out the sundries in the rapeseeds. S2. Put the cleaned rapeseeds into a frying pan, heat up to 135 °C and then start stir-frying, until there is a cracking sound of the rapeseeds in the pan, then control the temperature at 125 °C, and the rapeseeds can be taken out of the pan when they are crushed by hand and are golden yellow. S3. Put the fried rapeseeds into the chassis, and feed the materials from the feed port. After being initially pressed by the primary pressing end in the first chamber, they enter the second chamber and undergo secondary pressing, and finally fall into the third chamber for screening. The screened rapeseed oil drips into the transparent cylinder on the conveyor belt from the discharge port, and the liquid level height inside the cylinder can be detected by the monitoring end. S4. Collect the cylinders together through the conveyor belt, then keep them warm and stand for more than 5 hours, perform centrifugal treatment, take the supernatant, heat the supernatant to 85 °C, and perform deacidification treatment on the oil; finally, stand at room temperature for 7 hours, remove the precipitate, and obtain refined rapeseed oil.

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