A pressing device for pressing plant oil
By combining the water-based pressing mechanism with the refrigeration equipment, the problems of oil waste and environmental protection in vegetable oil pressing devices are solved, achieving efficient extraction and environmentally friendly utilization, and improving oil yield and economic benefits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ENSHI LIANZHU GRAIN & OIL CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-23
AI Technical Summary
Existing vegetable oil pressing equipment suffers from oil waste and loss of functional components, and does not conform to environmental protection trends.
The water-based pressing mechanism utilizes the immiscibility of oil and water through the cooperation of spiral fan blades and push plates to draw out residual oil with water. Combined with refrigeration equipment, solid-liquid separation is achieved, thereby increasing the oil yield.
It increased oil yield, reduced oil waste, achieved environmentally friendly and efficient extraction and utilization, and improved economic benefits.
Smart Images

Figure CN224392003U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oil pressing devices, specifically a pressing device for pressing vegetable oil. Background Technology
[0002] Vegetable oil pressing technology has a long history, evolving from traditional manual pressing to modern mechanized and automated production. Its core goal has always been to efficiently extract oil while maintaining oil quality. However, it still faces the challenge of balancing oil yield, energy consumption, and oil quality. Future technologies will develop towards low-temperature, high-efficiency, intelligent, and green directions, while also combining high-value utilization of by-products to improve overall economic benefits.
[0003] While vegetable oil pressing equipment has made significant progress in technology and efficiency, some shortcomings still exist. Directly discarding or disposing of the oil cake at low prices will lead to resource waste. Traditional screw pressing still leaves residual oil in the oil cake, and hydraulic pressing may result in an even higher residual oil rate, leading to oil waste and loss of functional components, which is not in line with environmental protection trends. Utility Model Content
[0004] To address the shortcomings of existing technologies, such as oil waste, loss of functional components, and non-compliance with environmental trends, this utility model proposes a pressing device for pressing vegetable oil.
[0005] The technical solution adopted by this utility model to solve its technical problem is: a pressing device for pressing vegetable oil, including a shell, a feed pipe fixedly connected to one side of the shell, a discharge port opened on one side of the shell, and an aqueous pressing mechanism provided on the inner wall of the shell.
[0006] The liquid pressing mechanism includes a pressing cylinder, the surface of which is fixedly connected to the inner wall of the outer shell. A pressing plate is fixedly connected to the inner wall of the pressing cylinder. A rotating shaft is rotatably connected to the inner cavity of the pressing plate. A spiral fan blade is fixedly connected to the surface of the rotating shaft. A water storage tank is fixedly connected to one side of the outer shell. A push plate is slidably connected to the inner wall of the water storage tank. A water passage hole is opened on the surface of the pressing cylinder.
[0007] Preferably, one end of the rotating shaft is fixedly connected to a roller, the surface of the roller is provided with a first sliding groove, the inner wall of the first sliding groove is slidably connected to a movable rod, and one end of the movable rod is fixedly connected to one side of the push plate.
[0008] Preferably, a stirring block is fixedly connected to one side of the spiral fan blade, and a transmission mechanism is provided on one side of the rotating shaft.
[0009] Preferably, the transmission mechanism includes a motor, one side of which is fixedly connected to one side of the housing, and a connecting rod is fixedly connected to the output end of the motor, with one end of the connecting rod fixedly connected to one end of the rotating shaft.
[0010] Preferably, a water inlet pipe is fixedly connected to one side of the water storage tank, and a check valve is fixedly connected to the inner wall of the water passage.
[0011] Preferably, a support plate is fixedly connected to one side of the pressing plate, a second groove is formed on the surface of the support plate, the surface of the movable rod is slidably connected to the inner wall of the second groove, and an isolation plate is fixedly connected to one side of the support plate.
[0012] Preferably, a refrigeration device is fixedly installed on one side of the isolation plate, and a waste discharge pipe is fixedly connected to the surface of the pressing cylinder.
[0013] The advantages of this utility model are:
[0014] This invention utilizes a water-based pressing mechanism to pour oil cake into the pressing cylinder through the feed pipe. As the rotating shaft rotates, it drives the spiral fan blades to rotate. Simultaneously, the push plate in the water storage tank is moved by the movable rod, pushing water into the water storage tank. The water enters the pressing cylinder through the water inlet and mixes with the oil cake. Due to the immiscibility of oil and water, the pressed and crushed oil cake has strong water absorption. The absorbed water forces out the residual oil. Then, the oil and water are mixed and pressed out together under the pressure of the pressing plates, achieving the effect of increasing the oil yield and solving problems such as oil waste, loss of functional components, and non-compliance with environmental protection trends. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;
[0017] Figure 2 This is a three-dimensional schematic diagram of the interior of this utility model;
[0018] Figure 3 This is a three-dimensional schematic diagram of the water-based pressing mechanism of this utility model;
[0019] Figure 4 This is a three-dimensional schematic diagram of the movable rod and push plate of this utility model;
[0020] Figure 5 This is a three-dimensional schematic diagram of the roller and the first slide groove of this utility model.
[0021] In the diagram: 1. Outer shell; 2. Feed pipe; 3. Discharge port; 4. Water-based pressing mechanism; 401. Pressing cylinder; 402. Pressing plate; 403. Rotating shaft; 404. Spiral fan blade; 405. Water storage tank; 406. Push plate; 407. Water passage hole; 5. Drum; 6. First chute; 7. Movable rod; 8. Stirring block; 9. Transmission mechanism; 901. Motor; 902. Connecting rod; 10. Water inlet pipe; 11. Check valve; 12. Support plate; 13. Second chute; 14. Isolation plate; 15. Refrigeration equipment; 16. Waste discharge pipe. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0023] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0024] This application discloses a pressing apparatus for pressing vegetable oil. (Refer to...) Figures 1 to 3 A pressing device for pressing vegetable oil includes a shell 1, a feed pipe 2 fixedly connected to one side of the shell 1, a discharge port 3 opened on one side of the shell 1, and an aqueous pressing mechanism 4 provided on the inner wall of the shell 1.
[0025] The aqueous pressing mechanism 4 includes a pressing cylinder 401, the surface of which is fixedly connected to the inner wall of the outer shell 1. A pressing plate 402 is fixedly connected to the inner wall of the pressing cylinder 401. A rotating shaft 403 is rotatably connected to the inner cavity of the pressing plate 402. A spiral fan blade 404 is fixedly connected to the surface of the rotating shaft 403. A water storage tank 405 is fixedly connected to one side of the outer shell 1. A push plate 406 is slidably connected to the inner wall of the water storage tank 405. A water passage hole 407 is opened on the surface of the pressing cylinder 401. After pressing and crushing, the resulting cake contains plant cells that have been broken and killed. The plant cell walls have collapsed and the cell membranes have lost selective permeability and fluidity, but some of the plant cells still remain intact. Residual oil is removed by a water-based pressing mechanism 4. The cake is poured into the pressing cylinder 401 from the feed pipe 2. As the rotating shaft 403 rotates, the spiral fan blade 404 rotates. At the same time, the push plate 406 in the water storage tank 405 is moved by the movable rod 7, pushing the water in the water storage tank 405. The water enters the pressing cylinder 401 through the water passage 407 and mixes with the cake. Due to the incompatibility of oil and water, the cake after pressing and crushing has strong water absorption. The water it absorbs will force out the residual oil. Then, the oil and water are mixed and pressed out together under the pressure of the pressing plate 402. Subsequently, it enters the static freezing space with the freezing equipment 15, which improves the oil yield of the cake.
[0026] Reference Figure 4 and Figure 5 A roller 5 is fixedly connected to one end of a rotating shaft 403. A first groove 6 is provided on the surface of the roller 5. A movable rod 7 is slidably connected to the inner wall of the first groove 6. One end of the movable rod 7 is fixedly connected to one side of a push plate 406. By setting the first groove 6 and the movable rod 7, the roller 5 is rotated as the rotating shaft 403 rotates, thereby causing the first groove 6 on the surface of the roller 5 to rotate. Since one end of the movable rod 7 slides in the first groove 6, the movable rod 7 moves with the movement of the first groove 6, thereby changing the radial rotation of the roller 5 into the axial movement of the movable rod 7, and thus driving the movement of the push plate 406.
[0027] Reference Figure 3 and Figure 5 A stirring block 8 is fixedly connected to one side of the spiral fan blade 404, and a transmission mechanism 9 is provided on one side of the rotating shaft 403. By setting the stirring block 8, the cake enters the pressing cylinder 401 and comes into contact with water. The stirring block 8 rotates with the rotation of the spiral fan blade 404, thereby stirring the cake and water, making the cake and water mix more thoroughly, and thus improving the oil yield.
[0028] Reference Figure 3 and Figure 5The transmission mechanism 9 includes a motor 901, one side of which is fixedly connected to one side of the housing 1. A connecting rod 902 is fixedly connected to the output end of the motor 901. One end of the connecting rod 902 is fixedly connected to one end of the rotating shaft 403. By setting the transmission mechanism 9, the motor 901 drives the connecting rod 902 fixedly connected to its output end to rotate, thereby driving the rotating shaft 403 fixedly connected to one end to rotate, thus providing power to the water-based pressing mechanism 4.
[0029] Reference Figure 2 and Figure 3 A water inlet pipe 10 is fixedly connected to one side of the water storage tank 405, and a check valve 11 is fixedly connected to the inner wall of the water passage hole 407. By setting the check valve 11, the water in the water storage tank 405 can enter the pressing cylinder 401 and prevent the cake in the pressing cylinder 401 from entering the water storage tank 405 through the water passage hole 407 when the push plate 406 moves out of the water storage tank 405.
[0030] Reference Figure 2 A support plate 12 is fixedly connected to one side of the pressing plate 402. A second groove 13 is provided on the surface of the support plate 12. The surface of the movable rod 7 is slidably connected to the inner wall of the second groove 13. An isolation plate 14 is fixedly connected to one side of the support plate 12. By setting the isolation plate 14, the oil-water mixture is prevented from directly contacting the freezing equipment 15 after being squeezed by the pressing plate 402. By setting the second groove 13, since the surface of the movable rod 7 is slidably connected to the inner wall of the second groove 13, the second groove 13 can limit the movable rod 7 and improve the stability of the movable rod 7 when it moves.
[0031] Reference Figure 2 A refrigeration device 15 is fixedly installed on one side of the isolation plate 14, and a waste discharge pipe 16 is fixedly connected to the surface of the pressing cylinder 401. By installing the refrigeration device 15, which is an existing structure, its components generally include an air compressor, a condenser, an expansion valve, an evaporator, and a temperature sensor, since oil and water are immiscible, the oil and water will automatically separate into layers as the oil-water mixture settles. Furthermore, since the freezing points of oil and water are different, solid-liquid separation can be achieved by controlling the temperature, thereby enabling the re-extraction of the oil.
[0032] Working principle: After being pressed and crushed, the plant cells in the cake are broken and dead, with collapsed cell walls and cell membranes losing selective permeability and fluidity, but some oil residue remains. The cake is poured into the pressing cylinder 401 through the feed pipe 2. The motor 901 drives the connecting rod 902, which is fixedly connected to its output end, to rotate. The rotation of the connecting rod 902 drives the rotating shaft 403, which is fixedly connected to one end of the shaft, to rotate. As the rotating shaft 403 rotates, it drives the spiral fan blades 404 to rotate. At the same time, the rotation of the rotating shaft 403 drives the drum 5 to rotate, which in turn drives the first groove 6 on the surface of the drum 5 to rotate. Since one end of the movable rod 7 slides in the first groove 6, the movable rod 7 moves with the first groove 6. The movement of the roller 5 causes the radial rotation of the roller 5 to be converted into the axial movement of the movable rod 7, which in turn drives the push plate 406 to move, pushing the water in the water storage tank 405. The water enters the pressing cylinder 401 through the water passage 407 and mixes with the cake. Due to the immiscibility of oil and water, the cake after pressing and crushing has a strong water absorption capacity. The water it absorbs will force out the residual oil. Then, the oil and water are mixed and pressed out together under the pressure of the pressing plate 402 and enter the static freezing space with the freezing equipment 15. Since oil and water are immiscible, as the oil and water mixture settles, the oil and water will automatically separate into layers. Since the freezing points of oil and water are different, solid-liquid separation is achieved by controlling the temperature, thereby realizing the re-pressing and extraction of oil.
[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.
Claims
1. A pressing apparatus for pressing vegetable oil, characterized in that: Includes an outer shell (1), with a feed pipe (2) fixedly connected to one side of the outer shell (1), a discharge port (3) opened on one side of the outer shell (1), and a water-based pressing mechanism (4) provided on the inner wall of the outer shell (1); The liquid pressing mechanism (4) includes a pressing cylinder (401), the surface of which is fixedly connected to the inner wall of the outer shell (1), a pressing plate (402) is fixedly connected to the inner wall of the pressing cylinder (401), a rotating shaft (403) is rotatably connected to the inner cavity of the pressing plate (402), a spiral fan blade (404) is fixedly connected to the surface of the rotating shaft (403), a water storage tank (405) is fixedly connected to one side of the outer shell (1), a push plate (406) is slidably connected to the inner wall of the water storage tank (405), and a water passage hole (407) is opened on the surface of the pressing cylinder (401).
2. The pressing apparatus for pressing vegetable oil according to claim 1, characterized in that: One end of the rotating shaft (403) is fixedly connected to a roller (5), and a first groove (6) is provided on the surface of the roller (5). A movable rod (7) is slidably connected to the inner wall of the first groove (6), and one end of the movable rod (7) is fixedly connected to one side of the push plate (406).
3. A pressing apparatus for pressing vegetable oil according to claim 1, characterized in that: A stirring block (8) is fixedly connected to one side of the spiral fan blade (404), and a transmission mechanism (9) is provided on one side of the rotating shaft (403).
4. A pressing apparatus for pressing vegetable oil according to claim 3, characterized in that: The transmission mechanism (9) includes a motor (901), one side of which is fixedly connected to one side of the housing (1), and a connecting rod (902) is fixedly connected to the output end of the motor (901), and one end of the connecting rod (902) is fixedly connected to one end of the rotating shaft (403).
5. A pressing apparatus for pressing vegetable oil according to claim 1, characterized in that: A water inlet pipe (10) is fixedly connected to one side of the water storage tank (405), and a check valve (11) is fixedly connected to the inner wall of the water passage (407).
6. A pressing apparatus for pressing vegetable oil according to claim 2, characterized in that: A support plate (12) is fixedly connected to one side of the pressing plate (402). A second groove (13) is provided on the surface of the support plate (12). The surface of the movable rod (7) is slidably connected to the inner wall of the second groove (13). An isolation plate (14) is fixedly connected to one side of the support plate (12).
7. A pressing apparatus for pressing vegetable oil according to claim 6, characterized in that: A refrigeration device (15) is fixedly installed on one side of the isolation plate (14), and a waste discharge pipe (16) is fixedly connected to the surface of the pressing cylinder (401).