A rapeseed pressing device

Abstract

The application discloses a rapeseed pressing device, which comprises an oil press, a feeding hopper, a self-throwing and scattering type mixing device, a pre-adjusting and bran mixing mechanism and an oil liquid impurity filtering assembly. The oil press comprises a rack, a driving mechanism, a press screw and a press cage sleeved outside the press screw shaft. The feeding hopper is connected and arranged above the press cage. The self-throwing and scattering type mixing device is connected and arranged above the feeding hopper. The pre-adjusting and bran mixing mechanism is arranged above the self-throwing and scattering type mixing device. The oil liquid impurity filtering assembly is arranged below the press cage. The application belongs to the rapeseed pressing technical field and specifically provides the rapeseed pressing device which can automatically adjust the bran discharging speed according to the rapeseed discharging speed, is convenient for adjusting the bran mixing amount according to the rapeseed quality, realizes the self-throwing and scattering type mixing of the material by using the impact force of the material sliding and cooperating with the pre-set arc-shaped elastic sheet, guarantees the uniform mixing of the material, realizes the real-time filtering of the oil liquid impurity and the self-cleaning of the filter hole and effectively avoids the clogging of the filter hole.

Description

Technical Field

[0001] This invention belongs to the field of rapeseed pressing technology, specifically referring to a rapeseed pressing device. Background Technology

[0002] Rapeseed oil, also known as canola oil, is an edible oil extracted from rapeseed. It is one of the main edible oils in my country.

[0003] Rapeseed oil is golden or brownish-yellow in color. Its main components include oleic acid, linoleic acid, linolenic acid, tocopherol, and rapeseed sterol. Currently, rapeseed oil is produced by pressing. To increase the oil yield, bran is often manually added to the roasted rapeseed. The amount added needs to be adjusted according to the quality of the rapeseed; higher quality rapeseed requires more bran, while lower quality rapeseed requires less. Manual addition is labor-intensive and difficult to control. In addition, pressed rapeseed oil contains impurities and needs to be filtered. Using conventional filtration equipment, the filter pores are easily clogged, affecting the oil filtration speed and making cleaning difficult. Summary of the Invention

[0004] To address the above issues and overcome the shortcomings of existing technologies, this invention provides a rapeseed pressing device that can automatically adjust the bran feeding speed according to the rapeseed feeding speed. It also allows for easy adjustment of the bran mixing amount based on rapeseed quality. The device utilizes the downward force of the material in conjunction with a pre-set arc-shaped spring to achieve self-scattering and mixing of the material, ensuring uniform mixing. Furthermore, a self-cleaning filter screen is installed below the pressing cage to achieve real-time filtration of oil impurities and self-cleaning of the filter holes, effectively preventing filter blockage.

[0005] The technical solution adopted by the present invention is as follows: The present invention provides a rapeseed pressing device, including an oil press, a feeding hopper, a self-spreading mixing device, a pre-adjusting bran blending mechanism, and an oil impurity filtration assembly. The oil press includes a frame, a drive mechanism, a screw press, and a pressing cage fitted outside the screw press shaft. The drive mechanism is mounted on the frame, and fixed seats are symmetrically arranged on the frame. The pressing cage is mounted on the fixed seats, and the screw press is connected to the drive mechanism. The drive mechanism is a commonly used gearbox. The feeding hopper is connected above the pressing cage and is located at the feeding end of the screw press. The self-spreading mixing device is connected above the feeding hopper. The pre-adjusting bran blending mechanism is located above the self-spreading mixing device. The oil impurity filtration assembly is located on the fixed seats and below the pressing cage.

[0006] Furthermore, a mixing channel is connected above the feed hopper, and the self-dispensing mixing device is located within the mixing channel. A premixing cylinder is connected to one side of the upper end of the mixing channel, and a pre-adjusting hopper is connected to the upper end of the premixing cylinder. A pre-adjusting and blending mechanism is located within the premixing cylinder, which has a premixing cavity with a semi-circular bottom wall. The pre-adjusting and blending mechanism includes a pre-adjusting elastic spring assembly, a steel wire, an arc-shaped rotating component, and a storage cylinder. A rotating shaft is located within the premixing cavity, and the rotating shaft is coaxial with the semi-circular bottom wall of the premixing cavity. The arc-shaped rotating component is symmetrically mounted on the rotating shaft, and its circumferential sidewall is in contact with the semi-circular sidewall of the premixing cavity. Blending through holes are symmetrically provided on the sidewall of the premixing cavity. The storage cylinder is located on the sidewall of the premixing cylinder and is connected to the blending through holes. The pre-adjusting elastic spring... The components are symmetrically arranged on both sides of the premixing cylinder. One end of the steel wire is connected to the pre-adjusted elastic spring assembly, and the other end of the steel wire is connected to the arc-shaped rotating component. Under no external force, the pre-adjusted elastic spring assembly pulls the upper wall of the arc-shaped rotating component to maintain a horizontal state through the steel wire. At this time, the feed through hole is blocked by the arc-shaped rotating component. The roasted rapeseed meal is fed into the pre-adjusted hopper. The material impacts the arc-shaped rotating component, causing it to rotate downwards, thus exposing the feed through hole. The impact force on the arc-shaped rotating component varies depending on the feed speed of the rapeseed meal, and thus the area of ​​the exposed part of the feed through hole also changes. If the material feeds quickly, the exposed area of ​​the feed through hole is large and the feed speed of the bran is fast. Conversely, if the material feeds slowly, the exposed area of ​​the feed through hole is small and the feed speed of the bran is slow.

[0007] The pre-adjustable elastic spring assembly includes an adjusting screw, a tension sleeve, a pre-adjustable spring, and a pull rod. The tension sleeve is located on the side wall of the premix cylinder and is a cavity with an opening on the upper wall. The adjusting screw is threaded through the bottom wall of the tension sleeve, and a limiting flange is provided inside the tension sleeve. The pull rod is slidably located inside the tension sleeve through the upper opening. The pre-adjustable spring is located between the adjusting screw and the pull rod and is located inside the tension sleeve. A steel wire is connected to the pull rod. The tension of the pre-adjustable spring is adjusted by turning the adjusting screw, thereby adjusting the resistance to the downward rotation of the arc-shaped rotating part, which facilitates the adjustment of the bran content according to the rapeseed quality.

[0008] Furthermore, the premixing cylinder has a mixing discharge hole on its side wall, located on one side of the arc-shaped rotating component. The self-dispensing mixing device includes a feeding baffle, a feeding belt, an intermittent pulling assembly, a return spring, a driving cavity, and an arc-shaped spring. The driving cavity is located on the side wall of the mixing channel, which has a pull-out through hole. The feeding baffle slides through the pull-out through hole within the mixing channel. The upper wall of the driving cavity has a limiting seat, and the return spring is located between the limiting seat and the feeding baffle. The intermittent pulling assembly is located within the driving cavity, and the upper wall of the driving cavity has a pulling through hole. One end of the feeding belt is connected to the feeding baffle, and the other end of the feeding belt... The end is connected to the intermittent pulling component through the pull hole. The intermittent pulling component pulls the feeding baffle from the mixing channel intermittently through the feeding belt, which facilitates the accumulation of mixed materials above the feeding baffle, facilitates intermittent feeding, and avoids material accumulation in the feeding hopper. The arc-shaped springs are staggered in the side wall of the mixing channel and are located below the feeding baffle. The material falling from the feeding baffle falls onto the arc-shaped springs. The impact force of the falling material causes the arc-shaped springs to undergo elastic deformation, thereby generating an upward elastic force on the material and causing the material to be thrown upward, which facilitates the mixing of materials. Through the throwing of multiple sets of staggered arc-shaped springs, it is ensured that the rapeseed cooked material and bran are mixed more evenly.

[0009] Preferably, the intermittent pulling assembly includes a pulley, a wheel seat frame, a sliding shaft, a feeding rotating rod, a rotating rod guide frame, a feeding motor, and a splined shaft. The feeding motor is mounted on the side wall of the drive cavity, the splined shaft is rotatably mounted in the drive cavity and connected to the feeding motor, one end of the sliding shaft is slidably sleeved on the splined shaft, and a feeding tension spring is provided between the sliding shaft and the splined shaft. The wheel seat frame is mounted in the drive cavity, the pulley is rotatably mounted on the wheel seat frame, the central shaft of the wheel seat frame has a sliding through hole, the sliding shaft is rotatably mounted in the sliding through hole, the feeding rotating rod is fixedly mounted on the end of the sliding shaft away from the splined shaft, a lever is provided on the side wall of the pulley, and the rotating rod guide frame is located on one side of the pulley. Both ends are equipped with a pushing part, one side of which is sloped. The length from the pushing part to the pulley is greater than the length of the actuating rod. When the feeding rod rotates, it drives the pulley to rotate via the actuating rod. The pulley drives the feeding partition to be pulled out of the mixing channel via the feeding belt. When the feeding rod rotates to the pushing part, it rotates along the slope of the pushing part, causing the sliding shaft to slide along the spline shaft. This causes the feeding rod and the actuating rod to become misaligned. At this time, the feeding partition is quickly reset and inserted into the mixing channel under the action of the return spring. It is also reset by the pulley rotating in the opposite direction via the feeding belt. After the feeding rod moves away from the pushing part, the sliding shaft slides back to its original position along the spline shaft under the action of the feeding tension spring, facilitating the work of the next cycle.

[0010] As a further improvement to this solution, multiple sets of threaded mounting holes are arranged at equal intervals on the pulley, and the actuating rod is threadedly connected to the threaded mounting holes. By adjusting the spacing between the actuating rods, the duration of material accumulation can be easily adjusted.

[0011] Preferably, the oil impurity filtration assembly includes an arc-shaped filter plate, a shape memory alloy sheet, and shape memory alloy protrusions. The arc-shaped filter plate is mounted on a fixed base and positioned below the pressing cage. Limiting platforms are provided at both ends of the arc-shaped filter plate. Filter holes are evenly spaced on the arc-shaped filter plate. The shape memory alloy sheet is disposed within the filter holes, and the shape memory alloy protrusions are located on the side of the shape memory alloy sheet closest to the arc-shaped filter plate. When the pressed oil falls onto the arc-shaped filter plate, the temperature of the oil triggers the shape memory alloy sheet and the shape memory alloy protrusions to deform due to heat. The shape memory alloy sheet and the shape memory alloy protrusions bend away from the arc-shaped filter plate, exposing the filter holes. The oil flows out from the filter holes, while impurities are filtered onto the arc-shaped filter plate. When there is no oil on the arc-shaped filter plate, the temperature of the arc-shaped filter plate decreases, and the shape memory alloy sheet and the shape memory alloy protrusions recover their deformation and adhere to the filter holes. When the shape memory alloy protrusions recover their deformation, they push out the impurities blocking the filter holes. The shape memory alloy sheet and the shape memory alloy protrusions are two-way shape memory alloys.

[0012] As a further improvement to this solution, an impurity scraping assembly is provided above the arc-shaped filter plate, and impurity receiving grooves are symmetrically provided on both sides of the arc-shaped filter plate. A rotating collar is provided on the outer side of the pressing cage, and a toothed plate is provided below the rotating collar. A driving toothed ring is provided on the outer side of the rotating collar. A support frame is provided on the fixed base, and a protective cover is provided on the support frame. The protective cover covers the outer side of the driving toothed ring and the rotating collar. A gear cavity is provided on the protective cover, and a scraping gear is rotatably provided in the gear cavity. The scraping gear meshes with the driving toothed ring. A scraping motor is provided on the outer side of the gear cavity. The scraping motor is connected to the scraping gear. The scraping motor drives the scraping gear to rotate, thereby driving the scraping toothed ring to rotate. The scraping toothed ring drives the toothed plate to rotate, scraping away the oil impurities on the arc-shaped filter plate.

[0013] The beneficial effects of the present invention using the above structure are as follows: The rapeseed pressing device provided by this solution utilizes the impact of the rapeseed feeding speed on the arc-shaped rotating part to generate a corresponding stroke, thereby adjusting the discharge volume of bran and automatically adjusting the feeding speed of bran to achieve synchronous feeding of rapeseed and bran. A pre-adjusted bran mixing mechanism is set up to facilitate the adjustment of the amount of bran added according to the quality of rapeseed, and the adjustment steps are very simple. A self-throwing mixing device is set up, using an intermittent pulling component to drive the feeding baffle to intermittently pull, realizing the accumulation of materials and intermittent feeding, avoiding a large accumulation of materials in the feeding hopper. The impact force of the material sliding down, combined with the preset arc-shaped spring, realizes the self-throwing mixing of materials, ensuring uniform mixing of materials. A self-cleaning filter screen is set up below the pressing cage. The shape memory alloy sheet and shape memory alloy protrusion are automatically triggered by the oil temperature to produce deformation. When the operation stops, the temperature drops, and the shape memory alloy sheet and shape memory alloy protrusion automatically reset, self-cleaning the filter holes and effectively avoiding filter hole blockage. Combined with the impurity scraping component, it ensures smooth oil filtration. Attached Figure Description

[0014] Figure 1 A schematic diagram of the structure of a rapeseed pressing device provided by the present invention; Figure 2 A side view of a rapeseed pressing apparatus provided by the present invention; Figure 3 A schematic diagram of the self-spreading mixing device, the pre-adjusting and blending mechanism, and the feeding hopper provided by the present invention; Figure 4 A schematic diagram showing the combination of the self-spreading mixing device, the pre-adjusting bran mixing mechanism, and the feeding hopper provided by the present invention; Figure 5 A schematic diagram of the internal structure of the mixing channel provided by the present invention; Figure 6 This is a schematic diagram of the intermittent pulling component provided by the present invention; Figure 7 A schematic diagram of the internal structure of the driving cavity provided by the present invention; Figure 8 A side view of the intermittent pulling component provided by the present invention; Figure 9 A schematic diagram showing the misalignment of the feeding rotary rod and the actuating rod in the intermittent pulling assembly provided by the present invention; Figure 10 This is a schematic diagram of the internal structure of the premixing cylinder provided by the present invention; Figure 11 A cross-sectional view of the pre-adjustable elastic tension spring assembly provided by the present invention; Figure 12 This is a schematic diagram of the structure of the oil impurity filtration assembly provided by the present invention; Figure 13 A side view of the oil impurity filtration assembly provided by the present invention; Figure 14 for Figure 12 A magnified view of part A.

[0015] The components include: 1. Oil press; 2. Feed hopper; 3. Self-spreading mixing equipment; 4. Pre-mixing and blending mechanism; 5. Oil impurity filtration assembly; 6. Frame; 7. Drive mechanism; 8. Scraper motor; 9. Press cage; 10. Fixed base; 11. Mixing channel; 12. Premixing cylinder; 13. Pre-mixing hopper; 14. Premixing chamber; 15. Pre-mixing elastic spring assembly; 16. Steel wire; 17. Arc-shaped rotating component; 18. Storage cylinder; 19. Rotating shaft; 20. Blending through hole; 21. Adjusting screw; 22. Tension sleeve; 23. Pre-mixing spring; 24. Pull rod; 25. Limiting flange; 26. Mixing discharge hole; 27. Discharge partition; 28. Discharge belt; 29. ​​Intermittent pulling assembly; 30. Reset spring. 31. Spring, Drive cavity, 32. Arc-shaped spring, 33. Pull-out through hole, 34. Limit seat, 35. Pull-out through hole, 36. Pulley, 37. Wheel seat frame, 38. Sliding shaft, 39. Feeding rotating rod, 40. Rotating rod guide frame, 41. Feeding motor, 42. Splined shaft, 43. Feeding tension spring, 44. Sliding through hole, 45. Actuating rod, 46. Pushing part, 47. Threaded mounting hole, 48. Arc-shaped filter plate, 49. Shape memory alloy sheet, 50. Shape memory alloy protrusion, 51. Limiting platform, 52. Filter hole, 53. Impurity scraping assembly, 54. Impurity receiving groove, 55. Rotating collar, 56. Gear plate, 57. Drive gear ring, 58. Support frame, 59. Protective cover, 60. Gear cavity.

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0019] like Figures 1-14 As shown, the present invention provides an oil press 1, a feeding hopper 2, a self-spreading mixing device 3, a pre-adjusting bran blending mechanism 4, and an oil impurity filtration assembly 5. The oil press 1 includes a frame 6, a drive mechanism 7, a screw press, and a pressing cage 9 fitted outside the screw press shaft. The drive mechanism 7 is mounted on the frame 6, and fixed seats 10 are symmetrically arranged on the frame 6. The pressing cage 9 is mounted on the fixed seats 10. The screw press is connected to the drive mechanism 7. The drive mechanism 7 is a commonly used gearbox. The feeding hopper 2 is connected above the pressing cage 9 and is located at the feeding end of the screw press. The self-spreading mixing device 3 is connected above the feeding hopper 2. The pre-adjusting bran blending mechanism 4 is located above the self-spreading mixing device 3. The oil impurity filtration assembly 5 is mounted on the fixed seats 10 and is located below the pressing cage 9.

[0020] like Figures 1-11 As shown, a mixing channel 11 is connected above the feed hopper 2. The self-dispensing mixing device 3 is located inside the mixing channel 11. A premixing cylinder 12 is connected to one side of the upper end of the mixing channel 11. A pre-adjusting hopper 13 is connected to the upper end of the premixing cylinder 12. A pre-adjusting and bran-mixing mechanism 4 is located inside the premixing cylinder 12. The premixing cylinder 12 has a premixing cavity 14 with a semi-circular bottom wall. The pre-adjusting and bran-mixing mechanism 4 includes a pre-adjusting elastic tension spring assembly 15 and a steel wire 16. An arc-shaped rotating component 17 and a storage cylinder 18 are provided. A rotating shaft 19 is provided inside the premixing chamber 14, coaxially aligned with the semi-circular bottom wall of the premixing chamber 14. The arc-shaped rotating component 17 is symmetrically mounted on the rotating shaft 19, with its circumferential sidewall fitting against the semi-circular sidewall of the premixing chamber 14. Symmetrical additive through-holes 20 are provided on the sidewall of the premixing chamber 14. The storage cylinder 18 is located on the sidewall of the premixing cylinder 12 and communicates with the additive through-holes 20. The upper wall opening is designed with a pre-adjustable elastic spring assembly 15 symmetrically arranged on both sides of the premixing cylinder 12. One end of the steel wire 16 is connected to the pre-adjustable elastic spring assembly 15, and the other end of the steel wire 16 is connected to the arc-shaped rotating part 17. Under the action of no external force, the pre-adjustable elastic spring assembly 15 pulls the upper wall of the arc-shaped rotating part 17 to keep it in a horizontal state through the steel wire 16. At this time, the feed through hole 20 is blocked by the arc-shaped rotating part 17. The roasted rapeseed meal is fed into the pre-adjusting hopper 13. The material impacts the arc-shaped rotating part 17, causing the arc-shaped rotating part 17 to rotate downward, thereby exposing the feed through hole 20. The impact force on the arc-shaped rotating part 17 will also be different depending on the feeding speed of the rapeseed meal, so the area of ​​the exposed part of the feed through hole 20 will also change accordingly. If the material feeds quickly, the exposed area of ​​the feed through hole 20 is large and the feeding speed of the bran is fast. Conversely, if the material feeds slowly, the exposed area of ​​the feed through hole 20 is small and the feeding speed of the bran is slow.

[0021] like Figure 12-14As shown, the oil impurity filtration assembly 5 includes an arc-shaped filter plate 48, a shape memory alloy sheet 49, and a shape memory alloy protrusion 50. The arc-shaped filter plate 48 is mounted on the fixed base 10 and positioned below the pressing cage 9. Limiting platforms 51 are provided at both ends of the arc-shaped filter plate 48. Filter holes 52 are evenly spaced on the arc-shaped filter plate 48. The shape memory alloy sheet 49 is disposed within the filter holes 52, and the shape memory alloy protrusion 50 is located on the side of the shape memory alloy sheet 49 closest to the arc-shaped filter plate 48. When the pressed oil... When the oil falls onto the arc-shaped filter plate 48, the temperature of the oil triggers the shape memory alloy sheet 49 and the shape memory alloy protrusion 50 to deform due to heat. The shape memory alloy sheet 49 and the shape memory alloy protrusion 50 bend away from the arc-shaped filter plate 48, exposing the filter hole 52. The oil flows out from the filter hole 52, while impurities are filtered onto the arc-shaped filter plate 48. When there is no oil on the arc-shaped filter plate 48, the temperature of the arc-shaped filter plate 48 decreases, and the shape memory alloy sheet 49 and the shape memory alloy protrusion 50 recover their deformation and adhere to the filter hole 52. When the deformation is restored, the impurities blocking the filter holes 52 are pushed out. The shape memory alloy sheet 49 and the shape memory alloy protrusion 50 are two-way shape memory alloys. An impurity scraping component 53 is provided above the arc-shaped filter plate 48. Impurity receiving grooves 54 are symmetrically provided on both sides of the arc-shaped filter plate 48. A rotating collar 55 is rotatably provided on the outside of the pressing cage 9. A toothed plate 56 is provided below the rotating collar 55. A drive toothed ring 57 is provided on the outside of the rotating collar 55. A support frame 58 is provided on the fixed base 10. A protective cover 59 is provided on the support frame 58. The protective cover 59 covers the outside of the drive gear ring 57 and the rotating collar 55. The protective cover 59 is provided with a gear cavity 60. A scraping gear is rotatably provided in the gear cavity 60. The scraping gear meshes with the drive gear ring 57. A scraping motor 8 is provided outside the gear cavity 60. The scraping motor 8 is connected to the scraping gear. The scraping motor 8 drives the scraping gear to rotate, thereby driving the scraping gear ring to rotate. The scraping gear ring drives the toothed plate 56 to rotate and scrape off the oil impurities on the arc-shaped filter plate 48.

[0022] The pre-adjustable elastic spring assembly 15 includes an adjusting screw 21, a tension sleeve 22, a pre-adjustable spring 23, and a pull rod 24. The tension sleeve 22 is located on the side wall of the premix cylinder 12 and is a cavity with an opening on the upper wall. The adjusting screw 21 is threaded through the bottom wall of the tension sleeve 22. A limiting flange 25 is provided inside the tension sleeve 22. The pull rod 24 is slidably located inside the tension sleeve 22 through the upper opening. The pre-adjustable spring 23 is located between the adjusting screw 21 and the pull rod 24 and is located inside the tension sleeve 22. The steel wire 16 is connected to the pull rod 24. The tension of the pre-adjustable spring 23 is adjusted by turning the adjusting screw 21, thereby adjusting the resistance of the arc-shaped rotating part 17 to rotate downward, which facilitates the adjustment of the bran content according to the rapeseed quality.

[0023] Furthermore, the premixing cylinder 12 has a mixing discharge hole 26 on its side wall, which is located on one side of the arc-shaped rotating component 17. The self-spraying mixing device 3 includes a feeding baffle 27, a feeding belt 28, an intermittent pulling component 29, a return spring 30, a driving cavity 31, and an arc-shaped spring sheet 32. The driving cavity 31 is located on the side wall of the mixing channel 11, and the side wall of the mixing channel 11 has a pull-out through hole 33. The feeding baffle 27 is slidably disposed in the mixing channel 11 through the pull-out through hole 33. The upper wall of the driving cavity 31 has a limiting seat 34, and the return spring 30 is disposed between the limiting seat 34 and the feeding baffle 27. The intermittent pulling component 29 is disposed in the driving cavity 31, and the upper wall of the driving cavity 31 has a pulling through hole 35. One end of the feeding belt 28 is connected to the feeding baffle. The other end of the feeding belt 28 is connected to the intermittent pulling component 29 through the pulling hole 35. The intermittent pulling component 29 pulls the feeding partition 27 from the mixing channel 11 through the feeding belt 28, which facilitates the accumulation of mixed materials above the feeding partition 27, facilitates intermittent feeding, and avoids the accumulation of materials in the feeding hopper 2. The arc-shaped springs 32 are staggered in the side wall of the mixing channel 11. The arc-shaped springs 32 are located below the feeding partition 27. The materials falling from the feeding partition 27 fall onto the arc-shaped springs 32. The impact force of the falling materials causes the arc-shaped springs 32 to undergo elastic deformation, thereby generating an upward elastic force on the materials and causing the materials to be thrown upward, which facilitates the mixing of materials. After the throwing of multiple sets of staggered arc-shaped springs 32, the rapeseed cooked material and bran are mixed more evenly.

[0024] The intermittent pulling assembly 29 includes a pulley 36, a wheel seat frame 37, a sliding rotating shaft 38, a feeding rotating rod 39, a rotating rod guide frame 40, a feeding motor 41, and a splined shaft 42. The feeding motor 41 is mounted on the side wall of the drive cavity 31. The splined shaft 42 is rotatably mounted inside the drive cavity 31 and is connected to the feeding motor 41. One end of the sliding rotating shaft 38 is slidably sleeved on the splined shaft 42. A feeding tension spring 43 is provided between the sliding rotating shaft 38 and the splined shaft 42. The wheel seat frame 37 is mounted on the drive cavity 39. Inside the moving cavity 31, the pulley 36 is rotatably mounted on the wheel seat 37. The wheel seat 37 has a sliding through hole 44 at its central shaft. The sliding shaft 38 is rotatably mounted inside the sliding through hole 44. The feeding rotating rod 39 is fixedly connected to the end of the sliding shaft 38 away from the spline shaft 42. The side wall of the pulley 36 has a lever 45. The rotating rod guide frame 40 is located on one side of the pulley 36. Both ends of the rotating rod guide frame 40 have pushing parts 46. One side of the pushing part 46 is sloped. The pushing part 46 leads to the belt... The length of wheel 36 is greater than the length of lever 45. When the feeding rod 39 rotates, it drives the pulley 36 to rotate via lever 45. The pulley 36 drives the feeding partition 27 to be pulled out of the mixing channel 11 via the feeding belt 28. When the feeding rod 39 rotates to the pushing part 46, the feeding rod 39 rotates along the inclined surface of the pushing part 46, driving the sliding shaft 38 to slide along the spline shaft 42. As a result, the feeding rod 39 and lever 45 are misaligned. At this time, the feeding partition 27 is quickly moved by the return spring 30. The quick reset insertion into the mixing channel 11 is activated, and the pulley 36 is driven to rotate in the opposite direction via the feeding belt 28 to reset. After the feeding rod 39 rotates away from the push part 46, the sliding shaft 38 slides along the spline shaft 42 under the action of the feeding tension spring 43 to reset, facilitating the work of the next cycle. The pulley 36 is provided with multiple sets of threaded mounting holes 47 arranged at equal intervals. The actuating rod 45 is threadedly connected to the threaded mounting holes 47. By adjusting the distance between the actuating rods 45, the accumulation time of the material can be easily adjusted.

[0025] In practical use, rapeseed clinker is fed into the pre-mixing hopper 13 via a conveying mechanism (existing technology, which will not be described in detail here). Rice bran is fed into the storage cylinder 18. The rapeseed clinker falls through the pre-mixing hopper 13 onto the arc-shaped rotating component 17 in the pre-mixing chamber 14, generating an impact force that causes the component to rotate downwards, thus exposing the feed through-hole 20. The impact force on the arc-shaped rotating component 17 varies depending on the rapeseed clinker feeding speed, resulting in variations in the exposed area of ​​the feed through-hole 20. Faster feeding results in a larger exposed area of ​​the feed through-hole 20 and a faster rice bran feeding speed, while slower feeding results in a smaller exposed area and a slower rice bran feeding speed. The feed through-hole 20 is automatically adjusted according to the amount of rapeseed clinker being fed. The material is fed into the storage cylinder 18. The bran in the storage cylinder 18 is discharged from the mixing hole 20 and mixed with the rapeseed meal on the arc-shaped rotating part 17. The mixed material is discharged into the mixing channel 11 through the mixing discharge hole 26. In the initial state, the feeding baffle 27 is inserted into the mixing channel 11. The mixed material accumulates on the feeding baffle 27. The feeding motor 41 drives the sliding shaft 38 to rotate through the spline shaft 42. The sliding shaft 38 drives the feeding rod 39 to rotate. The feeding rod 39 drives the pulley 36 to rotate through the actuating rod 45. The pulley 36 drives the feeding baffle 27 to be pulled out of the mixing channel 11 through the feeding belt 28. The material accumulated on the feeding baffle 27 falls rapidly along the mixing channel 11. The material falling from the feeding baffle 27 falls onto the arc-shaped spring 32. The impact force causes the arc-shaped spring 32 to undergo elastic deformation, thereby generating an upward elastic force on the material and causing it to be thrown upwards, which facilitates the mixing of the material. Through the throwing of multiple sets of staggered arc-shaped springs 32, the mixture of rapeseed meal and bran is ensured to be more uniform. When the feeding rod 39 rotates to the pushing part 46, the feeding rod 39 rotates along the inclined surface of the pushing part 46, causing the sliding shaft 38 to slide along the spline shaft 42. This causes the feeding rod 39 to misalign with the actuating rod 45. At this time, the feeding partition 27, under the action of the return spring 30, quickly resets and inserts into the mixing channel 11, and drives the pulley 36 to rotate in the opposite direction and reset via the feeding belt 28. After the feeding rod 39 rotates away from the pushing part 46, the sliding shaft 38, under the action of the feeding tension spring 43, moves along... The spline shaft 42 slides back to its original position, facilitating the next cycle of operation. After being repeatedly elastically thrown by the arc-shaped spring 32, the material is fed into the screw press through the feed hopper 2. The oil press 1 presses the rapeseed to extract oil. The oil flows through the pressing cage 9 onto the arc-shaped filter plate 48. The temperature of the oil triggers the shape memory alloy sheet 49 and shape memory alloy protrusion 50 to deform due to heat. The shape memory alloy sheet 49 and shape memory alloy protrusion 50 bend away from the arc-shaped filter plate 48, exposing the filter holes 52. The oil flows out through the filter holes 52, while impurities are filtered onto the arc-shaped filter plate 48. The scraping motor 8 is activated, driving the scraping gear to rotate, which in turn drives the scraping toothed ring to rotate. The scraping toothed ring drives the toothed plate 56 to rotate, scraping away the oil and impurities from the arc-shaped filter plate 48. When operation stops, the temperature of the arc-shaped filter plate 48 decreases.The shape memory alloy sheet 49 and the shape memory alloy protrusion 50 recover their deformation and adhere to the filter pore 52. When the shape memory alloy protrusion 50 recovers its deformation, it pushes out the impurities blocking the filter pore 52.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A rapeseed pressing device, comprising an oil press and a feed hopper, wherein the oil press includes a frame, a drive mechanism, a screw press, and a pressing cage fitted around the outside of the screw press shaft; the drive mechanism is mounted on the frame, and fixed seats are symmetrically arranged on the frame; the pressing cage is mounted on the fixed seats; the screw press is connected to the drive mechanism; and the feed hopper is connected above the pressing cage and located at the feed end of the screw press, characterized in that: It also includes a self-dispersing mixing device, a pre-adjusting bran blending mechanism, and an oil impurity filtration assembly. The self-dispersing mixing device is connected above the feed hopper, the pre-adjusting bran blending mechanism is located above the self-dispersing mixing device, and the oil impurity filtration assembly is located on a fixed base and below the pressing cage. The oil impurity filtration assembly includes an arc-shaped filter plate, a shape memory alloy sheet, and shape memory alloy protrusions. The arc-shaped filter plate is located on the fixed base and below the pressing cage. Limiting platforms are provided at both ends of the arc-shaped filter plate. Filter holes are evenly spaced on the arc-shaped filter plate. The shape memory alloy sheet is located inside the filter holes, and the shape memory alloy protrusion is located on the side of the shape memory alloy sheet closest to the arc-shaped filter plate. The feed hopper is connected above the feed hopper. A mixing channel is provided, and the self-dispensing mixing device is located within the mixing channel. A premixing cylinder is connected to one side of the upper end of the mixing channel, and a pre-adjusting hopper is connected to the upper end of the premixing cylinder. A pre-adjusting and blending mechanism is located inside the premixing cylinder, which has a premixing cavity with a semi-circular bottom wall. The pre-adjusting and blending mechanism includes a pre-adjusting elastic spring assembly, a steel wire, an arc-shaped rotating component, and a storage cylinder. A rotating shaft is provided inside the premixing cavity, and the rotating shaft is coaxial with the semi-circular bottom wall of the premixing cavity. The arc-shaped rotating component is symmetrically mounted on the rotating shaft, and its circumferential sidewall is in contact with the semi-circular sidewall of the premixing cavity. Blending through holes are symmetrically provided on the sidewall of the premixing cavity, and the storage cylinder is located on the sidewall of the premixing cylinder, with the storage cylinder and blending through holes connected. A pre-adjustable elastic tension spring assembly is symmetrically arranged on both sides of the premixing cylinder. One end of the steel wire is connected to the pre-adjustable elastic tension spring assembly, and the other end of the steel wire is connected to the arc-shaped rotating component. The pre-adjustable elastic tension spring assembly includes an adjusting screw, a tension sleeve, a pre-adjustable tension spring, and a pull rod. The tension sleeve is located on the side wall of the premixing cylinder and is a cavity with an opening at the top wall. The adjusting screw is threaded through the bottom wall of the tension sleeve. A limiting flange is provided inside the tension sleeve. The pull rod slides through the upper opening of the tension sleeve and is slidably disposed inside the tension sleeve. The pre-adjustable tension spring is located between the adjusting screw and the pull rod and is located inside the tension sleeve. The steel wire is connected to the pull rod. The side wall of the premixing cylinder has a mixing discharge hole. The discharge port is located on one side of the arc-shaped rotating component. The self-spraying mixing device includes a discharge baffle, a discharge belt, an intermittent pulling assembly, a return spring, a drive cavity, and an arc-shaped spring. The drive cavity is located on the side wall of the mixing channel, and the side wall of the mixing channel has a pull-out through hole. The discharge baffle is slidably disposed in the mixing channel through the pull-out through hole. The upper wall of the drive cavity has a limit seat, and the return spring is located between the limit seat and the discharge baffle. The intermittent pulling assembly is located in the drive cavity, and the upper wall of the drive cavity has a pulling through hole. One end of the discharge belt is connected to the discharge baffle, and the other end of the discharge belt is connected to the intermittent pulling assembly through the pulling through hole. The arc-shaped spring is located below the discharge baffle.The intermittent pulling assembly includes a pulley, a wheel seat frame, a sliding shaft, a feeding rod, a rod guide frame, a feeding motor, and a splined shaft. The feeding motor is mounted on the side wall of the drive cavity. The splined shaft is rotatably mounted in the drive cavity and connected to the feeding motor. One end of the sliding shaft is slidably sleeved on the splined shaft. A feeding tension spring is provided between the sliding shaft and the splined shaft. The wheel seat frame is mounted in the drive cavity. The pulley is rotatably mounted on the wheel seat frame. A sliding through hole is provided in the central shaft of the wheel seat frame, and the sliding shaft is rotatably mounted in the sliding through hole. The feeding rod is fixedly connected to the end of the sliding shaft away from the splined shaft. A toggle lever is provided on the side wall of the pulley. The rod guide frame is located on one side of the pulley, and push parts are provided at both ends of the rod guide frame.

2. The rapeseed pressing apparatus according to claim 1, characterized in that: The arc-shaped spring pieces are staggered and arranged inside the side wall of the mixing channel.

3. The rapeseed pressing apparatus according to claim 2, characterized in that: One side of the pusher is sloped, and the length from the pusher to the pulley is greater than the length of the lever.

4. The rapeseed pressing apparatus according to claim 3, characterized in that: The pulley is provided with multiple sets of threaded mounting holes arranged at equal intervals, and the actuating rod is threadedly connected to the threaded mounting holes.

5. The rapeseed pressing apparatus according to claim 4, characterized in that: An impurity scraping assembly is provided above the arc-shaped filter plate. Impurity receiving grooves are symmetrically provided on both sides of the arc-shaped filter plate. A rotating collar is provided on the outer side of the pressing cage. A toothed plate is provided below the rotating collar. A drive toothed ring is provided on the outer side of the rotating collar. A support frame is provided on the fixed base. A protective cover is provided on the support frame. The protective cover covers the outer side of the drive toothed ring and the rotating collar. A gear cavity is provided on the protective cover. A scraping gear is rotatably provided in the gear cavity. The scraping gear meshes with the drive toothed ring. A scraping motor is provided on the outer side of the gear cavity. The scraping motor is connected to the scraping gear.

6. The rapeseed pressing apparatus according to claim 5, characterized in that: The arc-shaped filter plate is arranged coaxially with the press cage.

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