A rapeseed oil pressing and extraction device

Abstract

This utility model relates to a rapeseed oil pressing and extraction device, comprising a main body. The main body includes a pressing chamber and a collecting chamber. A driving assembly is provided on one side of the pressing chamber. The driving assembly is connected to a rotating rod that passes through the pressing chamber. A spirally extending auger is provided on the rotating rod. Several oil extraction holes are provided on the vertical bottom surface of the pressing chamber. A pressing plate is provided on the vertical top surface of the collecting chamber. Several oil-passing columns are provided on the pressing plate, which fit into the oil extraction holes. The pressing plate is arc-shaped to match the curvature of the bottom surface of the pressing chamber. This utility model drives the rotating rod to rotate through the driving assembly. During the rotation, the material entering the pressing chamber is spirally propelled and squeezed, so that the material is subjected to continuous pressing force, thereby effectively squeezing out the oil. The oil-passing columns can accurately connect with the oil extraction holes, thereby sealing the oil extraction holes when the material is squeezed out of oil, preventing the squeezed material from clogging the oil extraction holes.

Description

Technical Field

[0001] This utility model relates to the field of rapeseed oil processing technology, and in particular to a rapeseed oil pressing and extraction device. Background Technology

[0002] Rapeseed oil, as an important edible vegetable oil, is widely processed using screw pressing, which preserves its natural nutrients. Existing screw presses typically apply pressure to the rapeseed through a rotating auger, forcing the oil to flow into subsequent equipment. However, traditional devices have several structural design flaws: improper control of the gap between the auger and the inner wall of the device leads to uneven pressing, high residue levels, and difficulty in improving oil extraction efficiency; the residue after pressing easily clogs various orifices within the device, affecting the oil flow rate and causing not only oil leakage but also difficulties in subsequent cleaning due to residue. Therefore, the overall reliability and practicality of the equipment need improvement.

[0003] While existing technologies offer solutions to the aforementioned problems by adjusting the screw pitch or adding a filter structure, they still fail to resolve the core contradiction between the extrusion method and material clogging of the pores. Furthermore, the design of the slag discharge port fails to optimize efficient residue removal. Therefore, a rapeseed oil pressing and extraction device is needed that can improve extrusion efficiency and prevent material residue from clogging the pores after extrusion, to meet the higher requirements for oil yield, oil quality, and equipment stability in industrial production.

[0004] Furthermore, on the one hand, there are differences in understanding among those skilled in the art; on the other hand, the applicant studied a large number of documents and patents when making this utility model, but due to space limitations, not all details and contents were listed in detail. However, this does not mean that this utility model does not have the features of these prior art. On the contrary, this utility model has all the features of the prior art, and the applicant reserves the right to add relevant prior art to the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a rapeseed oil pressing and extraction device, comprising a main body. The main body includes a pressing chamber and a collecting chamber. A drive assembly is provided on one side of the pressing chamber. The drive assembly is connected to a rotating rod that passes through the pressing chamber. A spirally extending auger is provided on the rotating rod. Several oil extraction holes are provided on the vertical bottom surface of the pressing chamber. A pressing plate is provided on the vertical top surface of the collecting chamber. Several oil passage columns that fit into the oil extraction holes are provided on the pressing plate. The pressing plate is arc-shaped to match the curvature of the bottom surface of the pressing chamber.

[0006] According to a preferred embodiment, the vertical bottom surface of the pressing chamber is provided with a plurality of protective members extending along the axis of a plurality of oil extraction holes and coaxially cooperating with the oil extraction holes. The cross-sectional area of ​​the oil extraction holes and the protective members is the same as the cross-sectional area of ​​the oil passage column, and the sum of the axial lengths of the oil extraction holes and the protective members is greater than or equal to the axial length of the oil passage column.

[0007] According to a preferred embodiment, a plurality of oil passage holes leading from the pressing plate to the oil outlet are provided at intervals between a plurality of oil passage columns.

[0008] According to a preferred embodiment, a propulsion motor is disposed through at least one horizontal end of the pressing plate. The output shaft of the propulsion motor is connected to the pressing plate in a manner that pushes the pressing plate to move vertically.

[0009] According to a preferred embodiment, the propulsion motor is disposed on the outer surface of the main body and connected to the press plate in a manner that penetrates the main body.

[0010] According to a preferred embodiment, the helical radius of the auger is equal to the radius of the pressing chamber. The rotating rod is arranged such that its radius gradually increases along the helical extension direction of the auger.

[0011] According to a preferred embodiment, the radius of the rotating rod is smaller than the radius of the pressing chamber, and the end of the rotating rod away from the drive assembly is rotatably connected to the inner wall of the pressing chamber.

[0012] According to a preferred embodiment, an annular discharge port surrounding the rotating rod is provided on the side of the pressing chamber away from the drive assembly. The annular discharge port is rotatably connected to the pressing chamber. The annular discharge port surrounds the end of the rotating rod rotatably connected to the pressing chamber, and the end of the rotating rod rotatably connected to the pressing chamber passes through the annular discharge port and connects to the main body.

[0013] According to a preferred embodiment, the end of the collecting chamber away from the pressing plate is cone-shaped to collect the pressed rapeseed oil. An oil outlet is connected to the vertical bottom surface of the collecting chamber.

[0014] According to a preferred embodiment, an oil inlet is provided on the vertical top surface of the main body. The oil inlet is located on the side of the pressing chamber closest to the minimum radius of the rotating rod.

[0015] According to a preferred embodiment, a support column is connected to the vertical bottom surface of the main body. Attached Figure Description

[0016] Figure 1 This is a simplified structural diagram of a rapeseed oil pressing and extraction device according to a preferred embodiment of the present invention.

[0017] Figure 2This is a simplified structural diagram of a rapeseed oil pressing and extraction device according to a preferred embodiment of the present invention, after being cut open.

[0018] Figure 3 This is a simplified structural schematic diagram of a rapeseed oil pressing and extraction device according to a preferred embodiment of the present invention, after being cut open from another perspective.

[0019] Figure 4 This is a simplified structural diagram of a rapeseed oil pressing and extraction device according to a preferred embodiment of the present invention, showing the pressing plate moving downwards.

[0020] List of reference numerals

[0021] 100: Main body; 101: Oil inlet; 102: Support column; 200: Pressing chamber; 201: Drive assembly; 202: Rotating rod; 203: Screw assembly; 204: Oil outlet; 205: Protective component; 206: Annular slag discharge port; 300: Collection chamber; 301: Pressing plate; 302: Oil passage column; 303: Propulsion motor; 304: Oil outlet; 305: Oil passage hole. Detailed Implementation

[0022] The following is a detailed explanation with reference to the accompanying drawings.

[0023] Example 1

[0024] This utility model provides a rapeseed oil pressing and extraction device, such as... Figure 1 and Figure 2As shown, the system includes a main body 100. The main body 100 includes a pressing chamber 200 and a collecting chamber 300. A drive assembly 201 is provided on one side of the pressing chamber 200. The drive assembly 201 is connected to a rotating rod 202 that penetrates the pressing chamber 200. A spirally extending auger 203 is provided on the rotating rod 202. A plurality of oil extraction holes 204 are provided on the vertical bottom surface of the pressing chamber 200. A pressing plate 301 is provided on the vertical top surface of the collecting chamber 300. A plurality of oil passage columns 302 are provided on the pressing plate 301, which correspond to the oil extraction holes 204. The pressing plate 301 is arc-shaped to match the curvature of the bottom surface of the pressing chamber 200. The rapeseed oil pressing and extraction device provided by this utility model drives the rotating rod 202 to rotate via the drive assembly 201. The auger 203 on the rotating rod 202 extends spirally, and during rotation, it can spirally propel and squeeze the material (such as rapeseed) entering the pressing chamber 200, subjecting the material to continuous pressing force, thereby effectively squeezing out the oil. The oil extraction hole 204 on the vertical bottom surface of the pressing chamber 200 is used to allow the squeezed oil to pass through. An oil-passing column 302 is provided on the pressing plate 301 on the vertical top surface of the collecting chamber 300, which fits into the oil outlet 204. The pressing plate 301 is arc-shaped to match the curvature of the bottom surface of the pressing chamber 200. This design allows the oil-passing column 302 to accurately align with the oil outlet 204. When the material is squeezed to release oil, the oil outlet 204 is sealed, preventing the squeezed material from clogging it. After the pressing process is complete, the pressing plate 301 moves vertically to open the oil outlet 204, ensuring that the oil flows smoothly from the pressing chamber 200 into the collecting chamber 300. The arc-shaped pressing plate 301 better conforms to the bottom surface of the pressing chamber 200, improving the uniformity and efficiency of pressing and preventing material residue.

[0025] According to a preferred embodiment, such as Figure 4 As shown, several oil passages 305 are provided at intervals between several oil passage columns 302, leading from the pressing plate 301 to the oil outlet 304. The oil passages 305 ensure a flow channel for oil from the pressing plate 301 to the oil outlet 304. Oil can flow directly to the oil outlet 304 through these oil passages 305, shortening the oil's flow path, increasing the oil's discharge speed, and reducing the oil's residence time in the collection chamber. Simultaneously, the arrangement of multiple oil passages 305 disperses the oil's flow path, preventing blockage of a single channel from affecting the entire oil collection process, thus improving the reliability and oil extraction efficiency of the device. The oil passages 305 and the oil passage columns 302 work together to form a more complete oil collection channel network, ensuring that oil can be quickly and smoothly transferred from the pressing chamber 200 to the collection chamber 300 and discharged from the device, further improving the overall performance of the rapeseed oil pressing and extraction device.

[0026] According to a preferred embodiment, the vertical bottom surface of the pressing chamber 200 is provided with a plurality of protective members 205 extending along the axis of a plurality of oil extraction holes 204 and coaxially engaged with the oil extraction holes 204. The cross-sectional area of ​​the oil extraction holes 204 and the protective members 205 is the same as the cross-sectional area of ​​the oil passage column 302, and the sum of the axial lengths of the oil extraction holes 204 and the protective members 205 is greater than or equal to the axial length of the oil passage column 302. The protective members 205 extending along the axis of the oil extraction holes 204 and coaxially engaged on the vertical bottom surface of the pressing chamber 200 can guide the oil passage column 302, preventing it from failing to engage with the oil extraction holes 204 due to displacement deviation when the pressing plate 301 moves vertically, thus avoiding wear on the oil extraction holes 204 and extending their service life. The cross-sectional area of ​​the oil extraction hole 204 and the protective element 205 is the same as that of the oil passage column 302, ensuring that the flow cross-sectional area of ​​the grease is consistent when it passes through. At the same time, it avoids the material from being squeezed and blocking the oil extraction hole 204. The sum of the axial lengths of the oil extraction hole 204 and the protective element 205 is greater than or equal to the axial length of the oil passage column 302, so that the oil passage column 302 can completely penetrate the oil extraction hole 204 and the protective element 205 when inserted, forming a good sealing and conduction effect, preventing the material from being squeezed into the gap between the oil extraction hole 204 and the oil passage column 302, and improving the efficiency and purity of grease collection.

[0027] According to a preferred embodiment, such as Figure 3 As shown, a propulsion motor 303 is disposed through at least one horizontal end of the pressing plate 301. The output shaft of the propulsion motor 303 is connected to the pressing plate 301 in a manner that pushes the pressing plate 301 to move vertically. Driven by the propulsion motor 303, the pressing plate 301 can move vertically, thereby opening and closing the oil extraction hole 204 and preventing excessively fine material residue from falling into the collection chamber 300.

[0028] According to a preferred embodiment, the propulsion motor 303 is disposed on the outer surface of the main body 100 and connected to the pressing plate 301 through the main body 100. Furthermore, a sealing element is provided between the propulsion motor 303 and the main body 100. This layout makes reasonable use of the spatial structure of the device, mounting the propulsion motor 303 outside the main body 100, facilitating the installation, maintenance, and repair of the motor, while avoiding the motor occupying the internal space of the pressing chamber 200 and the collecting chamber 300, ensuring the internal structural integrity and functionality of the pressing chamber 200 and the collecting chamber 300, and preventing oil leakage. The connection method through the main body 100 ensures that the power of the propulsion motor 303 can be reliably transmitted to the pressing plate 301, enabling the pressing plate 301 to move stably in the vertical direction, improving the overall reliability and stability of the device.

[0029] According to a preferred embodiment, the spiral radius of the auger 203 is equal to the radius of the pressing chamber 200. The rotating rod 202 is arranged such that its radius gradually increases along the spiral extension direction of the auger 203. The fact that the spiral radius of the auger 203 is equal to the radius of the pressing chamber 200 allows the auger 203 to fully utilize the internal space of the pressing chamber 200 during rotation, ensuring a tight fit with the inner wall of the pressing chamber 200, reducing material residue within the pressing chamber 200, and improving the pressing efficiency. The gradually increasing radius of the rotating rod 202 along the spiral extension direction of the auger 203 gradually increases the degree of compression on the material as the auger 203 propels the material. As the radius of the rotating rod 202 increases, the gap between the auger 203 and the inner wall of the pressing chamber 200 gradually decreases, and the compressive pressure on the material gradually increases, enabling more effective extraction of oil from the material and increasing the oil yield. At the same time, this gradual extrusion method allows the material to be pressed evenly within the pressing chamber, avoiding material blockage or damage to the device due to excessive local pressure.

[0030] According to a preferred embodiment, the radius of the rotating rod 202 is smaller than the radius of the pressing chamber 200, and the end of the rotating rod 202 away from the drive assembly 201 is rotatably connected to the inner wall of the pressing chamber 200. The smaller radius of the rotating rod 202 ensures that it can rotate freely within the pressing chamber 200, avoiding friction and collision with the inner wall of the pressing chamber 200, thus reducing wear and energy loss. The rotatable connection between the end of the rotating rod 202 away from the drive assembly 201 and the inner wall of the pressing chamber 200 provides stable support for the rotating rod 202, maintaining axial stability during rotation and preventing the swaying of the rotating rod 202 from affecting the pressing effect of the auger 203 and the material propulsion speed. This two-end support method (one end of the drive assembly 201 and the other end rotatably connected to the inner wall of the pressing chamber 200) improves the rigidity and stability of the rotating rod 202, ensuring the reliability of the device during long-term operation.

[0031] According to a preferred embodiment, an annular discharge port 206 surrounding the rotating rod 202 is provided on the side of the pressing chamber 200 away from the drive assembly 201. The annular discharge port 206 is rotatably connected to the pressing chamber 200. The annular discharge port 206 surrounds the end of the rotating rod 202 rotatably connected to the pressing chamber 200, and the end of the rotating rod 202 rotatably connected to the pressing chamber 200 passes through the annular discharge port 206 and connects to the main body 100. Providing an annular discharge port 206 surrounding the rotating rod 202 on the side of the pressing chamber 200 away from the drive assembly 201, and rotatably connecting the annular discharge port 206 to the pressing chamber 200, facilitates the discharge of material residue after pressing. The annular discharge port 206 surrounding the end of the rotating rod 202 rotatably connected to the pressing chamber 200 allows the residue to be discharged evenly from the annular area, preventing residue accumulation within the pressing chamber 200. The end of the rotating rod 202 that is rotatably connected to the pressing chamber 200 passes through the annular slag discharge port 206 and connects to the main body 100. This design does not affect the rotation of the rotating rod 202, while ensuring the structural stability of the annular slag discharge port 206. By rotating the annular slag discharge port 206, the opening of the slag discharge port can be adjusted as needed, facilitating subsequent residue treatment and device cleaning.

[0032] According to a preferred embodiment, the end of the collecting chamber 300 away from the pressing plate 301 is cone-shaped to collect the pressed rapeseed oil. An oil outlet 304 is connected to the vertical bottom surface of the collecting chamber 300. The cone shape allows the oil flowing into the collecting chamber 300 from the oil column 302 and the oil collection hole 204 to naturally converge towards the bottom of the cone under gravity, facilitating oil collection and concentration. The cone shape allows the oil to drain quickly and smoothly through the oil outlet 304, reducing oil residue in the collecting chamber and improving collection efficiency. Simultaneously, the cone design helps prevent the formation of dead zones within the collecting chamber, avoiding oil deterioration and contamination, and ensuring the quality of the rapeseed oil.

[0033] According to a preferred embodiment, an oil inlet 101 is provided on the vertical top surface of the main body 100. The oil inlet 101 is arranged on one side of the pressing chamber 200 at the minimum radius close to the rotating rod 202. Since the radius of the rotating rod 202 gradually increases along the spiral extension direction of the auger member 203, the radius of the rotating rod 202 on the side close to the driving component 201 is smaller, and the gap between the auger member 203 and the inner wall of the pressing chamber 200 is larger, which is convenient for the entry of materials. By setting the oil inlet 101 here, after materials (such as rapeseeds) enter the pressing chamber 200, they can be quickly captured by the auger member 203 and propelled spirally, avoiding the accumulation of materials near the oil inlet, and improving the feeding efficiency and uniformity of the materials. At the same time, this setting conforms to the spiral propulsion direction of the auger member 203, enabling the materials to be carried into the interior of the pressing chamber 200 along the rotation direction of the auger member 203, reducing the feeding resistance, and ensuring the continuous and stable operation of the device.

[0034] According to a preferred embodiment, a support column 102 is connected to the vertical bottom surface of the main body 100. The support column 102 can provide stable support for the entire device, enabling the device to be placed stably on the ground or other support surfaces, and avoiding affecting the pressing effect and the collection of oil due to the inclination of the device. The setting of the support column 102 enhances the structural stability of the device, enabling it to withstand the vibration and pressing force generated during the rotation of the auger member 203 during operation, and extending the service life of the device. It should be noted that a setting method of the support column 102 is shown in the drawings of the present utility model, but it does not mean that other more stable structures cannot be used to support the main body 100 (such as arranged in a square or "pin" shape) to increase its structural strength, which will not be elaborated herein.

[0035] It should be noted that the above specific embodiments are exemplary. Those skilled in the art can come up with various solutions inspired by the disclosed content of the present utility model, and these solutions also belong to the disclosed scope of the present utility model and fall within the protection scope of the present utility model. Those skilled in the art should understand that the specification and drawings of the present utility model are illustrative and do not constitute a limitation on the claims. The protection scope of the present utility model is defined by the claims and their equivalents. The specification of the present utility model contains multiple inventive concepts. For example, "preferably" or "according to a preferred embodiment" indicates that the corresponding paragraph discloses an independent inventive concept. The applicant reserves the right to file divisional applications according to each inventive concept. Throughout the text, the features guided by "preferably" are only optional ways and should not be understood as must be set. Therefore, the applicant reserves the right to waive or delete relevant preferred features at any time.

Claims

1. A rapeseed oil pressing and extraction device, characterized in that, The system includes a main body (100), which includes a pressing chamber (200) and a collecting chamber (300). A driving assembly (201) is provided on one side of the pressing chamber (200). The driving assembly (201) is connected to a rotating rod (202) that passes through the pressing chamber (200). A spirally extending auger (203) is provided on the rotating rod (202). The pressing chamber (200) has a plurality of oil extraction holes (204) on its vertical bottom surface, and the collecting chamber (300) has a pressing plate (301) on its vertical top surface. The pressing plate (301) has a plurality of oil passage columns (302) that fit with the plurality of oil extraction holes (204). The pressing plate (301) is arc-shaped in a manner that matches the curvature of the bottom surface of the pressing chamber (200).

2. The rapeseed oil pressing and extraction device according to claim 1, characterized in that, The vertical bottom surface of the pressing chamber (200) is provided with a plurality of protective members (205) extending along the axis of the plurality of oil extraction holes (204) and coaxially cooperating with the oil extraction holes (204), wherein, The cross-sectional area of ​​the oil sampling hole (204) and the protective member (205) is the same as that of the cross-sectional area of ​​the oil passage column (302), and the sum of the axial lengths of the oil sampling hole (204) and the protective member (205) is greater than or equal to the axial length of the oil passage column (302).

3. The rapeseed oil pressing and extraction device according to claim 2, characterized in that, A plurality of oil passage holes (305) are provided at intervals between the plurality of oil passage columns (302), leading from the pressing plate (301) to the oil outlet (304).

4. The rapeseed oil pressing and extraction device according to claim 3, characterized in that, A propulsion motor (303) is provided through at least one horizontal end of the pressing plate (301), and the output shaft of the propulsion motor (303) is connected to the pressing plate (301) in such a way as to push the pressing plate (301) to move in the vertical direction.

5. The rapeseed oil pressing and extraction device according to claim 4, characterized in that, The propulsion motor (303) is disposed on the outer surface of the main body (100) and connected to the press plate (301) through the main body (100).

6. The rapeseed oil pressing and extraction apparatus according to claim 5, characterized in that, The spiral radius of the auger (203) is equal to the radius of the pressing chamber (200), wherein, The rotating rod (202) is arranged such that its radius gradually increases along the spiral extension direction of the auger (203).

7. The rapeseed oil pressing and extraction apparatus according to claim 6, characterized in that, The radius of the rotating rod (202) is smaller than the radius of the pressing chamber (200), and the end of the rotating rod (202) away from the driving assembly (201) is rotatably connected to the inner wall of the pressing chamber (200).

8. The rapeseed oil pressing and extraction apparatus according to claim 7, characterized in that, The pressing chamber (200) has an annular discharge port (206) surrounding the rotating rod (202) on the side away from the driving assembly (201). The annular discharge port (206) is rotatably connected to the pressing chamber (200). The annular discharge port (206) surrounds the end of the rotating rod (202) that is rotatably connected to the pressing chamber (200), and the end of the rotating rod (202) that is rotatably connected to the pressing chamber (200) passes through the annular discharge port (206) and is connected to the main body (100).

9. The rapeseed oil pressing and extraction apparatus according to claim 8, characterized in that, The end of the collecting chamber (300) away from the pressing plate (301) is set in a cone shape to collect the pressed rapeseed oil, and the oil outlet (304) is connected to the vertical bottom surface of the collecting chamber (300).

10. The rapeseed oil pressing and extraction apparatus according to claim 9, characterized in that, The main body (100) has an oil inlet (101) on its vertical top surface and a support column (102) connected to its vertical bottom surface. The oil inlet (101) is located on the side of the pressing chamber (200) near the minimum radius of the rotating rod (202).

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