Edible oil refining and extracting equipment

Abstract

The application discloses a kind of edible oil refining extraction equipment, including base, installation on base pressing mechanism, secondary pressing mechanism, refining processing mechanism and oil collection guide mechanism;The pressing mechanism is used to carry out first pressing oil extraction to edible oil raw materials, the secondary pressing mechanism receives the residue discharged by pressing mechanism and carries out secondary pressing oil extraction, the oil and fat obtained by first pressing and secondary pressing is guided to refining processing mechanism by the oil collection guide mechanism, and the oil and fat is discharged after being treated by deacidification, bleaching and deodorization by the refining processing mechanism.The edible oil refining extraction equipment disclosed in the application is integrated in the base, improves the oil and fat extraction rate by pressing mechanism and secondary pressing mechanism, and completes the deacidification, bleaching and deodorization of oil and fat by the aid of oil collection guide mechanism and the connection of refining processing mechanism, and realizes automatic operation by the centralized control of control panel, saves time and effort, and significantly improves the oil and fat extraction rate.

Description

Technical Field

[0001] This invention relates to the field of edible oil processing technology, specifically to an edible oil refining and extraction device. Background Technology

[0002] In traditional edible oil extraction processes, taking rapeseed oil as an example, a single pressing method is typically used. After the rapeseed raw material is initially pressed by a screw press, although a certain amount of oil can be obtained, a significant amount of oil remains in the residue. This is because the cell structure of rapeseed is complex, and the oil is relatively dispersed, making it difficult to extract it fully in a single pressing. This extraction method has a relatively low oil extraction rate, resulting in a waste of raw materials.

[0003] Currently, most edible oil extraction and refining equipment on the market are separate, or even if integrated equipment exists, the connection between the various stages is not tight enough. During the transition from pressing to refining, the transfer and handling of oil may lead to problems such as oil oxidation and contamination, increasing the difficulty of subsequent refining and hindering the automation and efficient control of the entire extraction and refining process.

[0004] Based on this, this solution proposes an edible oil refining and extraction device. Summary of the Invention

[0005] The purpose of this invention is to provide an edible oil refining and extraction device to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an edible oil refining and extraction device, comprising a base, a pressing mechanism, a secondary pressing mechanism, a refining processing mechanism, and an oil collection and guiding mechanism mounted on the base; the pressing mechanism is used to perform primary pressing of edible oil raw materials to extract oil, the secondary pressing mechanism receives the residue discharged from the pressing mechanism and performs secondary pressing to extract oil, and the oil collection and guiding mechanism guides the oil obtained from the primary and secondary pressing to the refining processing mechanism, which performs deacidification, decolorization, and deodorization treatment on the oil before discharging it.

[0007] Preferably, the pressing mechanism includes a mounting bracket fixed to the top of the base, a pressing tube fixed to the mounting bracket, a feed funnel located at the top of the pressing tube, a spiral extrusion rod rotatably assembled inside the pressing tube, and a drive assembly for driving the spiral extrusion rod to rotate; the bottom of the pressing tube is provided with a plurality of filter holes, and the front end of the pressing tube is provided with a slag outlet.

[0008] Using the above technical solution, the pressing mechanism is stably fixed to the base by the mounting frame, ensuring the overall structure is stable; the feed funnel facilitates the concentrated input of raw materials and avoids spillage; when the screw extruder rotates, it can form a continuous and uniform extrusion force on the raw materials in the pressing tube, efficiently separating the oil, and the filter hole at the bottom of the pressing tube allows the separated oil to flow out smoothly, while the slag outlet at the front end can promptly discharge the residue after the first pressing, preparing for the subsequent second pressing. The overall structural design is reasonable, realizing the orderly and efficient extraction of oil in the first pressing.

[0009] Preferably, the drive assembly includes a drive motor fixed on the mounting bracket, a second pulley connected to the output shaft of the drive motor, and a first pulley sleeved on one end of the spiral extrusion rod, wherein the first pulley and the second pulley are connected by belt drive.

[0010] Using the above technical solution, the drive component provides stable power through the drive motor. The motor output shaft drives the second pulley to rotate, and then the first pulley rotates synchronously through belt transmission, thereby driving the screw extrusion rod to rotate. The belt transmission method has the characteristics of smooth transmission, low noise, and shock buffering, which can ensure the stable speed of the screw extrusion rod and avoid the pressure fluctuation caused by unstable power transmission, thus ensuring the efficiency and effect of the initial pressing. At the same time, it is also convenient to control the pressing speed by adjusting the motor parameters according to actual needs.

[0011] Preferably, the secondary pressing mechanism includes a secondary pressing box, a slag discharge slide plate disposed above the secondary pressing box, an intermittent feeding component for the slag discharge slide plate, and an extrusion component disposed inside the secondary pressing box; the top of the slag discharge slide plate is correspondingly disposed to the slag discharge port of the pressing pipe, a filter screen is provided inside the secondary pressing box, and a metal frame is fixedly installed on the secondary pressing box.

[0012] Using the above technical solution, the slag discharge slide plate in the secondary pressing mechanism corresponds to the slag discharge port of the pressing tube, which can accurately receive the primary pressing residue and guide it to the secondary pressing box; the intermittent feeding component can control the feeding speed and amount of residue, avoiding insufficient pressing caused by a large amount of residue entering at once; the pressing component can perform secondary pressing on the residue to further extract oil; the filter screen can filter impurities in the secondary pressed oil, and the metal frame provides stable installation support for the pressing component. Overall, it realizes efficient secondary treatment of primary pressing residue and improves the total oil extraction rate.

[0013] Preferably, the intermittent feeding assembly includes a mounting box fixed to the top of the slag discharge slide plate, a reciprocating motor fixed inside the mounting box, a half gear connected to the output shaft of the reciprocating motor, a linkage rack symmetrically arranged on both sides of the half gear and adapted to the half gear, a connecting plate connected to the linkage rack, a vertical rod fixed to the bottom of the connecting plate, and a blocking plate connected to the bottom end of the vertical rod; the vertical rod is slidably installed at the bottom of the mounting box, and a return spring is sleeved between the vertical rod and the bottom of the mounting box; the blocking plate is correspondingly arranged with the discharge port of the slag discharge slide plate.

[0014] Using the above technical solution, the intermittent feeding component drives the half gear to rotate through a reciprocating motor. The half gear intermittently meshes with the linkage racks on both sides, and with the elastic reset action of the return spring, drives the connecting plate, vertical rod and blocking plate to move up and down reciprocally, thereby realizing the intermittent opening and closing of the slag discharge slide plate discharge port. This structure can accurately control the amount and frequency of slag falling, so that the slag enters the secondary pressing box evenly and orderly, avoiding slag accumulation that leads to insufficient pressing or equipment blockage, ensuring the efficiency and stability of secondary pressing, and also reducing the difficulty of manual control of feeding.

[0015] Preferably, the extrusion assembly includes an extrusion motor fixed on a metal frame, a bidirectional lead screw connected to the output shaft of the extrusion motor, two lead screw guide sleeves symmetrically threaded onto the bidirectional lead screw, a connecting frame connected to the lead screw guide sleeves, and an extrusion plate fixed to the top of the connecting frame; the two extrusion plates are arranged opposite to each other in the secondary pressing box, a slide rail is fixedly installed on the metal frame, and two sliders are slidably installed on the slide rail, with the two sliders respectively fixedly connected to the corresponding lead screw guide sleeves.

[0016] Using the above technical solution, the extrusion assembly is driven by an extrusion motor to rotate a bidirectional lead screw. The forward and reverse thread design of the bidirectional lead screw allows the two lead screw guide sleeves to move synchronously in opposite directions, thereby driving the connecting frame and extrusion plates to move relative to or away from each other. When the extrusion plates move in opposite directions, they can apply a uniform and strong extrusion force to the residue in the secondary pressing box, fully squeezing out the residual oil in the residue. The metal frame provides a stable mounting base for the extrusion motor and the bidirectional lead screw, ensuring structural stability during the extrusion process and preventing component displacement due to vibration from affecting the extrusion effect. This effectively improves the oil extraction efficiency of the secondary pressing. The slide rail and slider facilitate the restriction of the movement of the lead screw guide sleeves and the stable horizontal movement of the lead screw guide sleeves.

[0017] Preferably, the oil collection and guiding mechanism includes an oil collection funnel located below the pressing pipe, an oil discharge funnel located below the secondary pressing box, a first oil outlet pipe, and a second oil outlet pipe; one end of the first oil outlet pipe is connected to the oil collection funnel, and the other end is connected to the refining processing mechanism; one end of the second oil outlet pipe is connected to the oil discharge funnel, and the other end is connected to the refining processing mechanism, and the oil discharge funnel is correspondingly arranged with the filter screen in the secondary pressing box.

[0018] Using the above technical solution, the oil collecting funnel in the oil collecting and guiding mechanism can quickly collect the oil flowing out of the filter hole during the first pressing, and the oil discharging funnel can collect the oil after the second pressing and filtration by the filter screen; the first oil outlet pipe and the second oil outlet pipe accurately guide the oil from the two pressings to the refining processing unit, avoiding spillage, contamination, or oxidation due to excessive contact with air during the transfer process, thus ensuring the quality of the oil; at the same time, the design of the special funnel and oil pipe makes the oil collection and guiding process more airtight, reducing oil waste and providing pure and sufficient raw materials for subsequent refining processing.

[0019] Preferably, the refining processing mechanism includes a deacidification tank, a decolorization tank, and a deodorization tank connected in sequence. The deacidification tank is connected to an oil collection and diversion mechanism, and the bottom of the deodorization tank is provided with an oil drain pipe.

[0020] Using the above technical solution, the refining unit processes the oil sequentially through a deacidification tank, a decolorization tank, and a deodorization tank. The deacidification tank removes free fatty acids from the oil, improving its flavor and stability; the decolorization tank adsorbs impurities such as pigments and colloids, enhancing its color; the deodorization tank removes off-odors, improving its quality; and the drain pipe facilitates the collection and discharge of the refined, qualified edible oil. The interconnected structure of the tanks ensures a continuous oil refining process, eliminating the need for frequent oil transfers, reducing external contamination, ensuring refining efficiency and edible oil quality, and meeting the requirements of industrial production for edible oil quality.

[0021] Preferably, the slag discharge slide plate is equipped with a vibrator, which is used to assist the slag from sliding down.

[0022] By adopting the above technical solution, the vibration generated by the vibrator on the slag discharge slide can disturb the residue on the slide, preventing the residue from adhering to the slide surface due to excessive stickiness or friction, thus avoiding accumulation and blockage. This ensures that the residue can slide smoothly and quickly into the secondary pressing box. At the same time, the vibration can also make the residue more evenly distributed during the downward movement, laying the foundation for the subsequent intermittent feeding component to accurately control the feeding amount, reducing the risk of equipment failure, ensuring the continuous and stable operation of the secondary pressing mechanism, and indirectly improving the oil extraction efficiency.

[0023] Preferably, the base is provided with a control panel, which is electrically connected to the drive components of the pressing mechanism, the secondary pressing mechanism and the refining mechanism, respectively, for controlling the operation of the equipment.

[0024] By adopting the above technical solution, the control panel on the base is electrically connected to the drive components of each mechanism, enabling centralized control of the overall operation of the equipment. Operators can conveniently start and stop each mechanism and adjust parameters such as motor speed, pressing pressure, and feeding frequency through the control panel, eliminating the need to operate each component individually, thus simplifying the operation process and reducing manual labor intensity. Simultaneously, centralized control facilitates real-time monitoring of the equipment's operating status, enabling timely detection and handling of abnormal situations, ensuring safe, efficient, and stable operation of the equipment, and improving overall production efficiency and automation levels.

[0025] Compared with the prior art, the beneficial effects of the present invention are: Significantly improved oil extraction rate: This invention features a dual-pressing structure combining primary and secondary pressing. After the primary pressing, the residue containing residual oil is precisely guided into the secondary pressing box via a slag discharge slide. The intermittent feeding component ensures uniform feeding of the residue. Combined with a symmetrical extrusion plate driven by a bidirectional screw, efficient secondary pressing is achieved, which fully extracts the remaining oil from the residue. This effectively solves the problems of insufficient extraction and raw material waste in traditional single pressing methods, significantly increasing oil yield and raw material utilization, and improving production economic efficiency.

[0026] Achieving integrated and efficient operation of pressing and refining: The equipment integrates the pressing mechanism, secondary pressing mechanism, oil collection and diversion mechanism, and refining mechanism on the same base. The mechanisms are closely connected. The oil collection and diversion mechanism directly diverts the oil from the two pressings to the refining mechanism through a dedicated funnel and oil pipe, avoiding oxidation and contamination of the oil during the transfer process and reducing the difficulty of subsequent refining. At the same time, the control panel centrally controls the drive components of each mechanism, realizing fully automated operation from raw material pressing to oil deacidification, decolorization, and deodorization, simplifying the production process and improving production efficiency and oil product quality. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present invention; Figure 2 This is a side perspective view of the base of the present invention; Figure 3 This is a side perspective view of the mounting bracket of the present invention; Figure 4 This is a top perspective view of the base of the present invention; Figure 5 This is a perspective view of the internal structure of the press tube according to the present invention; Figure 6 This is a perspective view of the filter holes of the present invention; Figure 7 This is a front view of the internal structure of the mounting box according to the present invention.

[0028] In the diagram: 1. Base; 2. Second oil outlet pipe; 3. First oil outlet pipe; 4. Deacidification tank; 5. Decolorization tank; 6. Deodorization tank; 7. Oil discharge pipe; 8. Control panel; 9. Mounting frame; 10. Feed funnel; 11. Pressing pipe; 12. Secondary pressing box; 13. Oil discharge funnel; 14. Oil collection funnel; 15. Mounting box; 16. Slag discharge slide plate; 17. Vibrator; 18. First pulley; 19. Second pulley; 20. Drive motor; 21. Filter screen; 22. Metal frame; 23. Lead screw guide sleeve; 24. Bidirectional lead screw; 25. Extrusion motor; 26. Connecting frame; 27. Extrusion plate; 28. Spiral extrusion rod; 29. ​​Filter hole; 30. Linkage rack; 31. Reciprocating motor; 32. Half gear; 33. Connecting plate; 34. Return spring; 35. Blocking plate; 36. Vertical rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-7 The present invention provides a technical solution: an edible oil refining and extraction device, including a base 1, a pressing mechanism, a secondary pressing mechanism, a refining mechanism, and an oil collection and guiding mechanism installed on the base 1; the pressing mechanism is used to perform primary pressing to extract oil from edible oil raw materials, the secondary pressing mechanism receives the residue discharged from the pressing mechanism and performs secondary pressing to extract oil, and the oil collection and guiding mechanism guides the oil obtained from the primary pressing and secondary pressing to the refining mechanism, and the refining mechanism performs deacidification, decolorization, and deodorization treatment on the oil before discharging it.

[0031] Combination Figures 4-6 As shown, in this embodiment, the pressing mechanism includes a mounting frame 9 fixed to the top of the base 1, a pressing tube 11 fixed to the mounting frame 9, a feed funnel 10 located at the top of the pressing tube 11, a spiral extrusion rod 28 rotatably assembled inside the pressing tube 11, and a drive assembly for driving the spiral extrusion rod 28 to rotate; the bottom of the pressing tube 11 is provided with a plurality of filter holes 29, and the front end of the pressing tube 11 is provided with a slag outlet; the drive assembly includes a drive motor 20 fixed to the mounting frame 9, a second pulley 19 connected to the output shaft of the drive motor 20, and a first pulley 18 sleeved on one end of the spiral extrusion rod 28; the first pulley 18 and the second pulley 19 are connected by belt drive.

[0032] A mounting bracket 9 is fixedly installed on the top of the base 1. The mounting bracket 9 provides a stable installation support for the entire pressing mechanism, making the operation more stable after the subsequent components are installed. The mounting bracket 9 is firmly fixed to the base 1 by bolts to achieve this function. A pressing pipe 11 is fixedly installed on the mounting bracket 9. The pressing pipe 11 provides a pressing space for the edible oil raw material, allowing the raw material to be squeezed to extract oil inside the pipe. The pressing pipe 11 is fixed to the mounting bracket 9 by welding to ensure its stable position. A feeding funnel 10 is provided at the top of the pressing pipe 11. The feeding funnel 10 facilitates the centralized feeding of edible oil raw material and avoids the raw material from spilling. The feeding funnel 10 is installed at the top of the pressing pipe 11 by a snap-fit ​​fixing method, and the raw material flows out through the funnel. After being poured into the hopper, the material can directly enter the pressing tube 11. A spiral extrusion rod 28 is rotatably mounted inside the pressing tube 11. The spiral extrusion rod 28 applies continuous and uniform extrusion force to the raw material inside the tube through rotation, separating the oil from the raw material. It is rotatably connected to the inner wall of the pressing tube 11 via bearings at both ends, ensuring smooth rotation. The pressing mechanism is also equipped with a drive assembly for driving the spiral extrusion rod 28 to rotate. This drive assembly provides stable power to the spiral extrusion rod 28, allowing it to rotate continuously for pressing. Specifically, the power is output by the drive motor 20 and transmitted to the spiral extrusion rod 28 via belt transmission. In the drive assembly, the drive motor 20 is fixedly mounted on the mounting bracket 9. The drive motor 20 provides the power source through... The power supply drives the output shaft to rotate. The drive motor 20 is mounted on the mounting bracket 9 using bolts to ensure it does not wobble during operation. A second pulley 19 is connected to the output shaft of the drive motor 20, transmitting power to the drive motor 20. The second pulley 19 is fixed to the output shaft of the drive motor 20 via a key connection and rotates with the output shaft. A first pulley 18 is fitted onto one end of the spiral extrusion rod 28. The first pulley 18 receives the power transmitted from the second pulley 19 and drives the spiral extrusion rod 28 to rotate. It is fitted onto one end of the spiral extrusion rod 28 with an interference fit to ensure that the power transmission does not slip. The first pulley 18 and the second pulley 19 are connected by a belt drive. The connection method achieves smooth power transmission and reduces noise and impact during transmission. By fitting the belt into the grooves of the two pulleys, when the second pulley 19 rotates, the belt drives the first pulley 18 to rotate synchronously. Several filter holes 29 are opened at the bottom of the pressing pipe 11. The filter holes 29 allow the oil separated by the pressing pipe to flow smoothly out of the pressing pipe 11. The filter holes 29 are formed by evenly drilling holes at the bottom of the pressing pipe 11. The oil seeps out from the filter holes 29 under pressure. The front end of the pressing pipe 11 is opened with a slag outlet. The slag outlet discharges the residue after the first pressing in time, preparing for the subsequent second pressing. The residue is discharged from the slag outlet under the push of the spiral extrusion rod 28 by the opening at the front end of the pressing pipe 11.

[0033] Combination Figure 3 , Figure 7As shown, in this embodiment, the secondary pressing mechanism includes a secondary pressing box 12, a slag discharge slide plate 16 disposed above the secondary pressing box 12, an intermittent feeding assembly for the slag discharge slide plate 16, and an extrusion assembly disposed within the secondary pressing box 12. The top of the slag discharge slide plate 16 is correspondingly arranged with the slag outlet of the pressing pipe 11. A filter screen 21 is provided inside the secondary pressing box 12, and a metal frame 22 is fixedly installed on the secondary pressing box 12. The intermittent feeding assembly includes a mounting box 15 fixed to the top of the slag discharge slide plate 16, a reciprocating motor 31 fixed inside the mounting box 15, a half gear 32 connected to the output shaft of the reciprocating motor 31, a linkage rack 30 symmetrically arranged on both sides of the half gear 32 and adapted to the half gear 32, a connecting plate 33 connected to the linkage rack 30, a vertical rod 36 fixed to the bottom of the connecting plate 33, and a connection to the bottom end of the vertical rod 36. The material blocking plate 35; the vertical rod 36 is slidably installed at the bottom of the mounting box 15, and a return spring 34 is sleeved between the vertical rod 36 and the bottom of the mounting box 15. The material blocking plate 35 is correspondingly set with the discharge port of the slag discharge slide plate 16. The extrusion assembly includes an extrusion motor 25 fixed on the metal frame 22, a bidirectional lead screw 24 connected to the output shaft of the extrusion motor 25, two lead screw guide sleeves 23 symmetrically threaded on the bidirectional lead screw 24, a connecting frame 26 connected to the lead screw guide sleeves 23, and an extrusion plate 27 fixed to the top of the connecting frame 26. The two extrusion plates 27 are arranged opposite to each other in the secondary pressing box 12. A slide rail is fixedly installed on the metal frame 22, and two sliders are slidably installed on the slide rail. The two sliders are fixedly connected to the corresponding lead screw guide sleeves 23 respectively. A vibrator 17 is provided on the slag discharge slide plate 16. The vibrator 17 is used to assist the slag to slide down.

[0034] The core components of the secondary pressing mechanism include a secondary pressing box 12 fixedly mounted on the base 1. This box provides a closed space for the residue from the primary pressing, and is secured to the base 1 with bolts to ensure structural stability during pressing. Above the secondary pressing box 12 is a discharge slide plate 16, which receives the residue discharged from the pressing pipe 11 and guides it to the secondary pressing box 12. This slide plate is tilted and fixed above the secondary pressing box 12 by a bracket, with its top precisely aligned with the discharge port of the pressing pipe 11, allowing the residue to slide down naturally. A vibrator 17 is fixedly mounted on the discharge slide plate 16. This vibrator prevents residue from sticking to the slide plate and causing blockages. When the power is turned on, the vibrator 17 generates high-frequency vibrations, disturbing the residue on the slide plate and allowing it to slide down smoothly. A mounting box 15 is fixedly installed on the top of the slag slide plate 16. This box provides a mounting carrier for the intermittent feeding assembly and is welded to the top of the slide plate to ensure stable operation of the internal components. A reciprocating motor 31 is fixedly installed inside the mounting box 15 to provide power for the intermittent feeding. It is bolted to the inner wall of the mounting box 15, and its output shaft drives the relevant components to reciprocate. A half-gear 32 is fixedly connected to the output shaft of the reciprocating motor 31, converting the motor's rotational motion into the reciprocating linear motion of the linkage rack 30. This half-gear is fixed to the motor's output shaft via a key and rotates synchronously with the output shaft. Symmetrically arranged on both sides of the half-gear 32 are matching linkage racks 30, which receive the power from the half-gear 32 and drive subsequent components. The sliding mechanism, via a slider connected to a groove on the inner wall of the mounting box 15, ensures that it can only move up and down. A connecting plate 33 is fixedly connected to the bottom of the linkage rack 30, which synchronously transmits the movement of the two linkage racks 30 to the vertical rod 36. This plate is welded to the bottom of the linkage racks 30 to achieve synchronous force transmission. A vertical rod 36 is vertically fixed to the bottom of the connecting plate 33, which drives the blocking plate 35 to move up and down. This rod is welded to the connecting plate 33, and slides through a through hole at the bottom of the mounting box 15 to ensure smooth up and down sliding. A return spring 34 is sleeved between the vertical rod 36 and the bottom of the mounting box 15. This spring 34, when the half-gear 32 disengages from the rack, drives the blocking plate 35 to reset and close the discharge port. This spring 34 is sleeved on the outside of the vertical rod 36. The unit utilizes the elastic deformation of a spring to achieve a reset function; a blocking plate 35 is fixedly connected to the bottom end of the vertical rod 36, which controls the opening and closing of the discharge port of the slag discharge slide plate 16. It is fixed to the bottom end of the vertical rod 36 by bolts, and its position corresponds to the discharge port of the slag discharge slide plate 16. When moving up and down, it can realize the intermittent opening and closing of the discharge port; a filter screen 21 is fixedly installed inside the secondary pressing box 12, which is used to filter the residue and impurities in the secondary pressed oil. It is fixed in the lower middle part of the secondary pressing box 12 by a slot, allowing the oil to permeate the filter while the residue is intercepted; a metal frame 22 is fixedly installed on the top of the secondary pressing box 12, which is used to provide stable installation support for the extrusion assembly. It is fixed to the top edge of the secondary pressing box 12 by welding to ensure that it does not deform during extrusion;An extrusion motor 25 is fixedly mounted on the metal frame 22 to provide extrusion pressure for secondary pressing. It is bolted to the crossbeam of the metal frame 22. When energized, its output shaft drives the bidirectional lead screw 24 to rotate. The bidirectional lead screw 24 is fixedly connected to the output shaft of the extrusion motor 25. Its function is to drive two lead screw guide sleeves 23 to move in opposite directions or towards each other through rotation. It is connected to the motor output shaft via a coupling, and both ends are rotatably connected to the support of the metal frame 22 via bearings to ensure smooth rotation. Two lead screw guide sleeves 23 are symmetrically threaded on the bidirectional lead screw 24. Their function is to convert the rotational motion of the lead screw into linear motion and drive the connecting frame 26 to move. Their internal threads are adapted to the positive and negative threads of the bidirectional lead screw 24, allowing the two guide sleeves to move synchronously towards or away from each other when the lead screw rotates. A slide rail is fixedly mounted on the metal frame 22. Two sliders are slidably mounted on the slide rail to restrict the movement direction of the lead screw guide sleeve 23, ensuring it can only move horizontally. The slide rail is fixed to the metal frame 22 by bolts. The sliders are fixedly connected to the lead screw guide sleeve 23 by bolts and slide along the slide rail together with the guide sleeve. A connecting frame 26 is fixedly connected to the lead screw guide sleeve 23 to the extrusion plate 27 and transmits thrust. It is fixed to the side of the lead screw guide sleeve 23 by welding, converting the linear motion of the guide sleeve into the extrusion action of the extrusion plate 27. An extrusion plate 27 is fixedly connected to the top of the connecting frame 26 to directly apply extrusion pressure to the residue in the secondary pressing box 12. It is fixed to the top of the connecting frame 26 by bolts. The two extrusion plates 27 are arranged opposite each other in the secondary pressing box 12, and when they move towards each other, they extrude oil from the residue by extrusion.

[0035] Combination Figures 1-3 As shown, in this embodiment, the oil collection and guiding mechanism includes an oil collection funnel 14 located below the pressing pipe 11, an oil discharge funnel 13 located below the secondary pressing box 12, a first oil outlet pipe 3, and a second oil outlet pipe 2. One end of the first oil outlet pipe 3 is connected to the oil collection funnel 14, and the other end is connected to the refining processing mechanism. One end of the second oil outlet pipe 2 is connected to the oil discharge funnel 13, and the other end is connected to the refining processing mechanism. The oil discharge funnel 13 is correspondingly arranged with the filter screen 21 in the secondary pressing box 12. The refining processing mechanism includes a deacidification tank 4, a decolorization tank 5, and a deodorization tank 6 connected in sequence. The deacidification tank 4 is connected to the oil collection and guiding mechanism, and the bottom of the deodorization tank 6 is provided with an oil discharge pipe 7.

[0036] The oil collection and guiding mechanism first includes an oil collection funnel 14 located directly below the pressing pipe 11. This funnel collects the oil flowing from the filter hole 29 at the bottom of the pressing pipe 11 during the initial pressing. It is fixed to the base 1 by a bracket, with its opening precisely aligned with the bottom of the pressing pipe 11, ensuring all the oil falls into the funnel and preventing spillage and waste. It also includes an oil discharge funnel 13 located directly below the secondary pressing box 12. This funnel collects the oil filtered through the filter screen 21 after the secondary pressing. It is also fixed to the base 1 by a bracket, with its opening precisely aligned with the filter screen 21 inside the secondary pressing box 12, ensuring the oil from the secondary pressing flows smoothly. The guiding mechanism includes a first oil outlet pipe 3, one end of which is connected to the bottom outlet of the oil collecting funnel 14 via welding or threaded connection, and the other end is connected to the deacidification tank 4 of the refining unit. Its purpose is to transport the primary pressed oil collected by the oil collecting funnel 14 to the deacidification tank 4. The airtightness of the pipe prevents oxidation from contact with air during transport and also prevents contamination. There is also a second oil outlet pipe 2, one end of which is connected to the bottom outlet of the oil discharge funnel 13 via welding or threaded connection, and the other end is also connected to the deacidification tank 4. Its purpose is to transport the secondary pressed oil collected by the oil discharge funnel 13 to the deacidification tank 4, thus achieving two-stage pressing of oil. The refining unit comprises a deacidification tank 4, a decolorization tank 5, and a deodorization tank 6 connected in sequence. The deacidification tank 4 is connected to the first oil outlet pipe 3 and the second oil outlet pipe 2 via pipes. Its purpose is to remove free fatty acids from the oil. By adding a deacidifying agent to the tank and controlling the temperature and stirring, the free fatty acids react with the deacidifying agent to form soap, which is then removed by precipitation and separation, thus achieving deacidification. The deacidification tank 4 is connected to the decolorization tank 5 via pipes. The decolorization tank 5 is used to remove pigments, colloids, and other impurities from the oil. By adding a decolorizing agent such as activated clay to the tank and stirring at a certain temperature to adsorb impurities, the impurities are then removed by filtration. The decolorizing agent completes the decolorization process. The decolorizing tank 5 and the deodorizing tank 6 are connected by a pipeline. The purpose of the deodorizing tank 6 is to remove odorous substances from the oil. By vacuum heating the oil in the tank, the odorous substances are volatilized and extracted by the vacuum pump, thus achieving deodorization. The bottom of the deodorizing tank 6 is equipped with an oil drain pipe 7, which is fixed to the bottom of the deodorizing tank 6 by welding. The pipe is equipped with a valve, which is used to discharge and collect the qualified edible oil after deacidification, decolorization and deodorization treatment. When the valve is opened, the refined oil flows out from the oil drain pipe 7 under the action of gravity and flows into the external oil storage container. When the valve is closed, the oil discharge can be stopped, which makes it convenient to control the collection process.

[0037] Combination Figures 1-2 As shown in this embodiment, the base 1 is provided with a control panel 8, which is electrically connected to the drive components of the pressing mechanism, the secondary pressing mechanism and the refining mechanism, respectively, and is used to control the operation of the equipment.

[0038] A control panel 8 is bolted to the base 1. Its purpose is to centrally control the various mechanisms of the equipment. It is electrically connected to the drive motor 20 of the pressing mechanism, the reciprocating motor 31 and the extrusion motor 25 of the secondary pressing mechanism, and the heating and stirring drive components of the refining mechanism via wires. The control of the drive motor 20 can start and stop the equipment and adjust the speed of the screw extrusion rod 28 to change the primary pressing efficiency. The control of the reciprocating motor 31 can adjust the feeding speed of the blockage plate 35. The control of the extrusion motor 25 can realize the extrusion or reset of the extrusion plate 27. It can also adjust the temperature and stirring speed of the deacidification tank 4, decolorization tank 5, and deodorization tank 6. At the same time, the display screen on the control panel 8 can display the operating parameters, the indicator lights can indicate the status of the components, and the emergency stop button can cut off the power to all drive components in case of emergency.

[0039] This invention consists of two core stages: oil extraction by pressing and refining. Each stage is closely connected and operates automatically. In the oil extraction stage, rapeseed oil raw material is first fed into the pressing tube 11 through the feed funnel 10. The drive motor 20 on the mounting frame 9 is started through the control panel 8. Its output shaft drives the second pulley 19 to rotate. Then, the first pulley 18, which is sleeved on one end of the spiral extrusion rod 28, rotates through the belt drive. This drives the spiral extrusion rod 28 inside the pressing tube 11 to rotate. During the rotation, the spiral extrusion rod 28 pushes the raw material forward and applies pressure, causing the oil to separate from the raw material. The oil flows into the oil collection funnel 14 below through the filter hole 29 at the bottom of the pressing tube 11. The residue after pressing is pushed to the slag outlet at the front end of the pressing tube 11 and falls into the slag discharge slide plate 16 below.

[0040] The residue slides down the slag discharge slide plate 16 with the assistance of the vibrator 17. During this process, the reciprocating motor 31 inside the mounting box 15 starts, driving the half gear 32 to rotate. The half gear 32 intermittently meshes with the linkage racks 30 on both sides. With the elastic action of the return spring 34, it drives the connecting plate 33, the vertical rod 36, and the blocking plate 35 to move up and down reciprocally, realizing the intermittent opening and closing of the discharge port of the slag discharge slide plate 16, so that the residue falls evenly into the secondary pressing box 12. Then the extrusion motor 25 starts, driving the bidirectional lead screw 2 4. Rotation causes the two lead screw guide sleeves 23 to move towards each other, and through the connecting frame 26, the two extrusion plates 27 drive the residue to perform secondary pressing. The separated oil flows into the oil discharge funnel 13 after being filtered by the filter screen 21. The oil collected by the oil collection funnel 14 and the oil discharge funnel 13 is guided to the refining processing mechanism through the first oil outlet pipe 3 and the second oil outlet pipe 2, respectively. After passing through the refining process of deacidification tank 4, decolorization tank 5, and deodorization tank 6 in sequence, the qualified edible oil is finally discharged through the oil discharge pipe 7.

[0041] The contents not described in detail in this specification are prior art known to those skilled in the art. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An edible oil refining and extraction device, characterized in that: It includes a base (1), a pressing mechanism, a secondary pressing mechanism, a refining mechanism and an oil collection and guiding mechanism installed on the base (1); The pressing mechanism is used for the initial pressing of edible oil raw materials to extract oil; The secondary pressing mechanism receives the residue discharged from the pressing mechanism and performs secondary pressing to extract oil; The oil collection and diversion mechanism diverts the oil obtained from the primary and secondary pressing to the refining processing unit. The refining process unit removes the oil after it has been deacidified, decolorized, and deodorized.

2. The edible oil refining and extraction equipment according to claim 1, characterized in that, The pressing mechanism includes a mounting bracket (9) fixed to the top of the base (1), a pressing tube (11) fixed to the mounting bracket (9), a feed funnel (10) located at the top of the pressing tube (11), a spiral extrusion rod (28) rotatably assembled inside the pressing tube (11), and a drive assembly for driving the spiral extrusion rod (28) to rotate; the bottom of the pressing tube (11) is provided with a plurality of filter holes (29), and the front end of the pressing tube (11) is provided with a slag outlet.

3. The edible oil refining and extraction equipment according to claim 2, characterized in that, The drive assembly includes a drive motor (20) fixed on the mounting bracket (9), a second pulley (19) connected to the output shaft of the drive motor (20), and a first pulley (18) sleeved on one end of the spiral extrusion rod (28). The first pulley (18) and the second pulley (19) are connected by belt drive.

4. The edible oil refining and extraction equipment according to claim 1, characterized in that, The secondary pressing mechanism includes a secondary pressing box (12), a slag discharge slide plate (16) located above the secondary pressing box (12), an intermittent feeding component for the slag discharge slide plate (16), and an extrusion component located inside the secondary pressing box (12); the top of the slag discharge slide plate (16) is correspondingly arranged with the slag outlet of the pressing pipe (11), a filter screen (21) is provided inside the secondary pressing box (12), and a metal frame (22) is fixedly installed on the secondary pressing box (12).

5. The edible oil refining and extraction equipment according to claim 4, characterized in that, The intermittent feeding assembly includes a mounting box (15) fixed on the top of the slag discharge slide plate (16), a reciprocating motor (31) fixed inside the mounting box (15), a half gear (32) connected to the output shaft of the reciprocating motor (31), a linkage rack (30) symmetrically arranged on both sides of the half gear (32) and adapted to the half gear (32), a connecting plate (33) connected to the linkage rack (30), a vertical rod (36) fixed to the bottom of the connecting plate (33), and a blocking plate (35) connected to the bottom end of the vertical rod (36); the vertical rod (36) is slidably installed at the bottom of the mounting box (15), and a return spring (34) is sleeved between the vertical rod (36) and the bottom of the mounting box (15); the blocking plate (35) is correspondingly set to the discharge port of the slag discharge slide plate (16).

6. The edible oil refining and extraction equipment according to claim 4, characterized in that, The extrusion assembly includes an extrusion motor (25) fixed on a metal frame (22), a bidirectional lead screw (24) connected to the output shaft of the extrusion motor (25), two lead screw guide sleeves (23) symmetrically threaded on the bidirectional lead screw (24), a connecting frame (26) connected to the lead screw guide sleeves (23), and an extrusion plate (27) fixed to the top of the connecting frame (26); the two extrusion plates (27) are arranged opposite to each other in the secondary pressing box (12), a slide rail is fixedly installed on the metal frame (22), and two sliders are slidably installed on the slide rail, and the two sliders are fixedly connected to the corresponding lead screw guide sleeves (23) respectively.

7. The edible oil refining and extraction equipment according to claim 2, characterized in that, The oil collection and guiding mechanism includes an oil collection funnel (14) located below the pressing pipe (11), an oil discharge funnel (13) located below the secondary pressing box (12), a first oil outlet pipe (3), and a second oil outlet pipe (2); one end of the first oil outlet pipe (3) is connected to the oil collection funnel (14), and the other end is connected to the refining processing mechanism; one end of the second oil outlet pipe (2) is connected to the oil discharge funnel (13), and the other end is connected to the refining processing mechanism; the oil discharge funnel (13) is correspondingly arranged with the filter screen (21) in the secondary pressing box (12).

8. The edible oil refining and extraction equipment according to claim 1, characterized in that, The refining processing unit includes a deacidification tank (4), a decolorization tank (5), and a deodorization tank (6) connected in sequence. The deacidification tank (4) is connected to an oil collection and diversion mechanism, and the bottom of the deodorization tank (6) is provided with an oil drain pipe (7).

9. The edible oil refining and extraction equipment according to claim 4, characterized in that, The slag discharge slide plate (16) is equipped with a vibrator (17), which is used to assist the slag to slide down.

10. The edible oil refining and extraction equipment according to claim 1, characterized in that, The base (1) is provided with a control panel (8), which is electrically connected to the drive components of the pressing mechanism, the secondary pressing mechanism and the refining mechanism, respectively, and is used to control the operation of the equipment.

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