A screw oil press for pressing edible oil
By introducing a linkage component and a crushing component for secondary oil pressing into the screw oil press, the problem of oil residue cake clumping was solved, achieving more efficient oil extraction and machine protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- INNER MONGOLIA MENGXIN CHENTAI AGRI TECH DEV CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-26
AI Technical Summary
In the existing technology, during the flaxseed oil production process, the oil residue cake from the second pressing is prone to clumping, which leads to poor feeding, affects the oil pressing efficiency, and may damage the machine.
A screw oil press for edible oil pressing was designed, comprising a linkage component and a crushing component for secondary oil pressing. Through the cooperation of the transmission mechanism, the chopping blade and the drive mechanism, the oil residue cake is crushed in a secondary manner, increasing the contact area between the material and the oil pressing components and improving the oil extraction rate.
The secondary crushing component design breaks the oil residue cake into smaller pieces, improving the working efficiency and oil extraction rate of the oil press, and avoiding machine damage.
Smart Images

Figure CN224276377U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flaxseed oil production technology, and in particular to a screw oil press for pressing edible oil. Background Technology
[0002] In the production of flaxseed oil, the flaxseed feeding stage is a crucial step. Flaxseed, as raw material, needs to be converted into flaxseed oil through a refining and pressing process. In actual production, multiple screw oil presses operate in rows within the factory. Elevators lift the material and inject it into multiple feed hoppers. During the screw pressing process, the oil presses assist the material in entering the pressing chamber. The oil cake automatically discharged from the oil press outlet falls into the elevator channel, where another elevator transports it back to the top of the feed hopper for secondary pressing. The existing oil cake has a certain hardness, easily clumping together when injected into the feed hopper, affecting the discharge. The lack of a crushing mechanism also makes it difficult for the secondary material to enter the oil press smoothly. The oil extracted by multiple oil presses flows from the bottom channels into a channel below the factory floor, and then into crude oil tanks for storage, facilitating subsequent purification.
[0003] Chinese patent document CN221809631U discloses a refining device for flaxseed oil production. The device includes a feeding mechanism comprising a feeding shell, a feeding shaft, a feeding plate, a transmission mechanism, a fixing block, an adjusting spring, an insertion block, a fixing mechanism, and a vibration motor. The feeding shell is mounted on an oil press, and the feeding shaft is rotatably connected to the feeding shell. This feeding mechanism effectively solves the problem of flaxseed accumulation during feeding, ensuring the continuity and uniformity of the feed. First, the feeding plate feeds the flaxseeds into the oil press, and the vibration motor generates vibration to prevent flaxseeds from accumulating in the feeding shell, thus ensuring that the flaxseeds can be smoothly fed into the oil press, improving the efficiency and stability of the entire refining process.
[0004] The existing technology has the following problems:
[0005] Common sense dictates that flaxseed production involves a second pressing, using the oil cake residue from the first pressing as raw material. This oil cake residue, after the initial pressing, possesses a certain degree of compactness and hardness, and is prone to clumping, especially after transportation and cooling. When it is reinjected into the oil press via an elevator, it hinders the transport and discharge of the feed hopper. Due to the lack of a crushing mechanism, the secondary material may not flow smoothly into the oil press, potentially damaging the machine. Utility Model Content
[0006] This utility model provides a screw oil press for edible oil pressing to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0008] A screw oil press for pressing edible oil includes an oil press installed on the ground. A feed hopper is detachably connected to the top right side of the oil press. A linkage assembly is fixedly installed at the bottom right side of the oil press. An installation plate is fixedly installed on the top inner wall of the feed hopper. A crushing assembly for secondary oil pressing is fixedly connected to the left side of the installation plate.
[0009] The linkage assembly includes a transmission mechanism. Two support plates are fixedly installed on the upper right side of the mounting plate. A rotating shaft is rotatably connected to the inner wall of the two support plates. A transmission wheel is fixedly sleeved on the outer right side of the rotating shaft. The bottom of the transmission mechanism is fixedly connected to the bottom right side of the oil press. The top of the transmission mechanism is drivenly connected to the outer wall of the transmission wheel. A feed shell is penetrated and fixedly connected to the upper left side of the mounting plate. A top plate is fixedly installed on the top of the inner wall of the feed shell. A connecting plate is fixedly installed on the upper right side of the top plate. A linkage shaft is rotatably connected to the inner wall of the connecting plate. A first pulley is fixedly sleeved on the outer right side of the linkage shaft. A second pulley is fixedly sleeved on the middle of the outer wall of the rotating shaft. A belt is drivenly connected to the outer surface of the first pulley and the outer surface of the second pulley.
[0010] The crushing assembly for secondary oil pressing includes a protective frame. The lower end of the protective frame is fixedly connected to the upper middle part of the top plate. A sleeve shaft is rotatably connected through the upper middle part of the top plate inside the protective frame. Several ring-shaped chopping blades are fixedly sleeved on the bottom of the outer wall of the sleeve shaft. The left side of the outer wall of the linkage shaft passes through the right side of the protective frame and is fixedly connected to a drive mechanism. The bottom of the drive mechanism is fixedly connected to the top of the outer wall of the sleeve shaft.
[0011] Preferably, the transmission mechanism includes a motor, a fixing plate is fixedly installed on the bottom of the outer wall of the motor, the left side of the fixing plate is fixedly connected to the bottom right side of the oil press, the output end of the motor is fixedly connected to the spiral oil pressing mechanism inside the oil press, a synchronous pulley is fixedly sleeved on the output end of the motor, and a synchronous belt is drivingly connected to the outer surface of the transmission pulley and the outer surface of the synchronous pulley.
[0012] Preferably, a material unloading structure is fixedly connected to the left side of the outer wall of the rotating shaft, the bottom of the feeding hopper is a conical structure, and the material unloading structure extends to the bottom of the inner cavity of the feeding hopper.
[0013] Preferably, the driving mechanism includes a first bevel gear, the left side of the outer wall of the linkage shaft penetrates the right side of the protective frame and is fixedly connected to the inner wall of the first bevel gear, the top of the inner wall of the protective frame is rotatably connected to a counter-rotating shaft, the outer wall of the counter-rotating shaft is movably sleeved with the inner wall of the sleeve shaft, the top of the outer wall of the counter-rotating shaft and the top of the outer wall of the sleeve shaft are fixedly sleeved with oppositely arranged second bevel gears, and the outer surfaces of the two second bevel gears mesh with the outer surface of the first bevel gear.
[0014] Preferably, a plurality of ring-shaped shredders are fixedly installed on the bottom of the outer wall of the opposite shaft through the sleeve shaft, and the plurality of shredders are staggered with the plurality of shredders.
[0015] Preferably, the feed shell has a conical structure, and the bottom of the feed shell is connected to the feed hopper.
[0016] Preferably, the bottom of the oil press is fixedly equipped with an oil receiving frame that communicates with an underground channel.
[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:
[0018] 1. This utility model provides a screw oil press for edible oil pressing. Through the cooperation between the protective frame, sleeve shaft, first chopping blade, drive mechanism, first bevel gear, opposite shaft, second bevel gear, second chopping blade and linkage component, it can perform secondary crushing of the oil residue cake produced in the first pressing during the edible oil pressing process. It can crush it into smaller pieces, increase the contact area between the material and the oil pressing components inside the oil press, and improve the oil extraction rate.
[0019] 2. This utility model provides a screw oil press for edible oil pressing. Through the cooperation between the transmission mechanism, support plate, rotating shaft, transmission wheel, feed shell, top plate, connecting plate, linkage shaft, pulley one, pulley two, motor, synchronous wheel, synchronous belt and material unloading structure, the power transmission between the internal components of the oil press can be realized, so that the components can work together and the oil press can complete the work of unloading materials during oil pressing. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall front structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;
[0022] Figure 3 This is a schematic diagram of the linkage component structure of this utility model;
[0023] Figure 4 This is a cross-sectional view of the feed shell and feed hopper of this utility model;
[0024] Figure 5 This is a schematic diagram of the crushing component for secondary oil pressing according to this utility model;
[0025] Figure 6 This is a partially enlarged schematic diagram of point A of this utility model.
[0026] In the diagram: 1. Oil press; 2. Linkage assembly; 3. Crushing assembly for secondary oil pressing; 4. Feed hopper; 5. Mounting plate; 6. Oil receiving frame; 21. Transmission mechanism; 22. Support plate; 23. Rotating shaft; 24. Transmission wheel; 25. Feed shell; 26. Top plate; 27. Connecting plate; 28. Linkage shaft; 29. Belt pulley one; 210. Belt pulley two; 211. Motor; 212. Synchronous pulley; 213. Synchronous belt; 214. Discharge structure; 31. Protective frame; 32. Sleeve shaft; 33. Chopper one; 34. Drive mechanism; 341. Bevel gear one; 342. Opposite shaft; 343. Bevel gear two; 344. Chopper two. Detailed Implementation
[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0028] like Figures 1-6 As shown, a screw oil press for pressing edible oil includes an oil press 1, which is installed on the ground. A feed hopper 4 is detachably connected to the top right side of the oil press 1. A linkage component 2 is fixedly installed at the bottom right side of the oil press 1. An installation plate 5 is fixedly installed on the top inner wall of the feed hopper 4. A crushing component 3 for secondary oil pressing is fixedly connected to the left side of the installation plate 5.
[0029] The linkage component 2 includes a transmission mechanism 21. Two support plates 22 are fixedly installed on the upper right side of the mounting plate 5. A rotating shaft 23 is rotatably connected to the inner wall of the two support plates 22. A transmission wheel 24 is fixedly sleeved on the outer right side of the rotating shaft 23. The bottom of the transmission mechanism 21 is fixedly connected to the bottom right side of the oil press 1. The top of the transmission mechanism 21 is connected to the outer wall of the transmission wheel 24. A feed shell 25 is fixedly connected through and fixedly connected to the upper left side of the mounting plate 5. A top plate 26 is fixedly installed on the top of the inner wall of the feed shell 25. A connecting plate 27 is fixedly installed on the upper right side of the top plate 26. A linkage shaft 28 is rotatably connected to the inner wall of the connecting plate 27. A pulley 29 is fixedly sleeved on the outer right side of the linkage shaft 28. A pulley 210 is fixedly sleeved on the middle of the outer wall of the rotating shaft 23. A belt is connected to the outer surface of the pulley 29 and the outer surface of the pulley 210.
[0030] The crushing component 3 for secondary oil pressing includes a protective frame 31. The lower end of the protective frame 31 is fixedly connected to the upper middle part of the top plate 26. The upper middle part of the top plate 26 is located inside the protective frame 31 and is rotatably connected to a sleeve shaft 32. Several ring-shaped chopping blades 33 are fixedly sleeved on the bottom of the outer wall of the sleeve shaft 32. The left side of the outer wall of the linkage shaft 28 passes through the right side of the protective frame 31 and is fixedly connected to a drive mechanism 34. The bottom of the drive mechanism 34 is fixedly connected to the top of the outer wall of the sleeve shaft 32.
[0031] The linkage component 2 enables power transmission between the various components inside the oil press 1, allowing them to work collaboratively and ensuring proper material flow during oil pressing. The secondary crushing component 3 further crushes the oil residue cake produced during the first pressing, making it finer and increasing the contact area between the material and the pressing components inside the oil press 1, thus improving the oil extraction rate.
[0032] like Figure 3 As shown, the transmission mechanism 21 includes a motor 211. A fixing plate is fixedly installed on the bottom of the outer wall of the motor 211. The left side of the fixing plate is fixedly connected to the bottom right side of the oil press 1. The output end of the motor 211 is fixedly connected to the spiral oil pressing mechanism inside the oil press 1. A synchronous pulley 212 is fixedly sleeved on the output end of the motor 211. A synchronous belt 213 is connected to the outer surface of the transmission wheel 24 and the outer surface of the synchronous pulley 212.
[0033] When motor 211 starts, it can drive the spiral oil pressing mechanism inside the oil press 1 to press oil, and its output end can use synchronous pulley 212, transmission pulley 24 and synchronous belt 213 to transmit the rotational force of the output shaft of motor 211 to rotating shaft 23. Rotating shaft 23 can use pulley 29, pulley 210 and belt to transmit the rotational force to linkage shaft 28.
[0034] like Figure 4 As shown, a material discharge structure 214 is fixedly connected to the left side of the outer wall of the rotating shaft 23. The bottom of the feed hopper 4 is a conical structure, and the material discharge structure 214 extends to the bottom of the inner cavity of the feed hopper 4.
[0035] The material feeding structure 214 is an existing mechanism. A mounting frame is fixedly installed at the upper center of the mounting plate 5. A bevel gear 1 is fixedly sleeved on the left side of the outer wall of the rotating shaft 23, passing through the right side of the mounting frame. A material feeding shaft is rotatably connected to the upper center of the mounting plate 5, located on the inner wall of the mounting frame. A bevel gear 2 is fixedly sleeved on the top of the outer wall of the material feeding shaft, with the outer surface of bevel gear 1 meshing with the outer surface of bevel gear 2. Several linearly arranged auger blades are fixedly sleeved on the bottom of the outer wall of the material feeding shaft, located at the bottom of the feed hopper 4. When the motor 211 starts, the auger blades can feed material.
[0036] like Figure 5 and Figure 6 As shown, the drive mechanism 34 includes a first bevel gear 341. The left side of the outer wall of the linkage shaft 28 passes through the right side of the protective frame 31 and is fixedly connected to the inner wall of the first bevel gear 341. The top of the inner wall of the protective frame 31 is rotatably connected to a counter-rotating shaft 342. The outer wall of the counter-rotating shaft 342 is movably sleeved with the inner wall of the sleeve shaft 32. The top of the outer wall of the counter-rotating shaft 342 and the top of the outer wall of the sleeve shaft 32 are fixedly sleeved with oppositely arranged second bevel gears 343. The outer surfaces of the two second bevel gears 343 mesh with the outer surface of the first bevel gear 341.
[0037] When the linkage shaft 28 drives the first bevel gear 341 to rotate, the two second bevel gears 343 mesh with the first bevel gear 341, thereby driving the sleeve shaft 32 and the opposite shaft 342 to rotate synchronously and in opposite directions. This causes several first chopping blades 33 and several second chopping blades 344 to rotate alternately and in opposite directions, improving the chopping effect of the oil residue cake.
[0038] like Figure 6 As shown, a number of ring-shaped shredders 344 are fixedly installed on the bottom of the outer wall of the opposite shaft 342, passing through the sleeve shaft 32. The number of shredders 344 and the number of shredders 33 are arranged alternately.
[0039] like Figure 5 As shown, the feed shell 25 has a conical structure, and the bottom of the feed shell 25 is connected to the feed hopper 4.
[0040] like Figure 1 As shown, an oil receiving frame 6 connected to an underground channel is fixedly installed at the bottom of the oil press 1.
[0041] In actual production, multiple screw oil presses operate in rows within the factory. Elevators lift the material and feed it into multiple hoppers 4. During the screw pressing process, the oil press 1 assists in feeding the material into the pressing chamber. The oil cake automatically discharged from the oil press's outlet falls into the elevator's channel, where another elevator transports it back to the top of the hopper for secondary pressing. The oil extracted by the multiple oil presses flows from the bottom channels into a channel beneath the factory floor, then into crude oil tanks for storage, facilitating subsequent purification.
[0042] The working principle of this utility model is as follows: Multiple screw oil presses operate side-by-side in the factory. An elevator lifts the material and injects it into multiple feed hoppers 4. The motor 211 starts, and its output drives the screw oil pressing mechanism inside the oil press 1. Furthermore, its output uses a synchronous pulley 212, a transmission pulley 24, and a synchronous belt 213 to transmit the rotational force of the motor 211's output shaft to the rotating shaft 23. The second pulley 210 on the rotating shaft 23 transmits the rotational force to the first pulley 29 on the linkage shaft 28 via a belt, thereby driving the linkage shaft 28 to rotate. The rotating shaft drives the material unloading structure 214 to unload the material from the feed hoppers, preventing blockage. When flaxseed is pressed for oil, oil is discharged from the bottom of the oil press 1. The edible oil is guided from the oil receiving frame 6 into a channel below ground and then collected in a crude oil tank. The oil residue cake produced by the oil press 1 during the pressing process will be discharged from the left side of the oil press 1. In actual production, a transport channel will be set up on the ground, and then the elevator will transport these oil residue cakes to the feed shell 25 at the top of the oil press 1, so that the oil residue cakes can be crushed through the internal structure of the feed shell 25 and pressed for oil again.
[0043] Simultaneously, the linkage shaft 28 drives the first bevel gear 341 to rotate, and the two second bevel gears 343, through meshing with the first bevel gear 341, drive the sleeve shaft 32 and the opposite-direction shaft 342 to rotate synchronously and in opposite directions. This causes several first-stage chopping blades 33 and several second-stage chopping blades 344 to rotate alternately and in opposite directions, improving the chopping effect of the oil residue cake. After being crushed, the oil residue cake will re-enter the chamber of the oil press 1 from the feed hopper 4 to achieve secondary oil pressing.
[0044] 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 claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A screw press for the expression of edible oil comprising a press (1) mounted on the ground characterised in that: The top right side of the oil press (1) is detachably connected to a feeding hopper (4), the bottom right side of the oil press (1) is fixedly installed with a linkage assembly (2), the top inner wall of the feeding hopper (4) is fixedly installed with an installation plate (5), and the left side of the installation plate (5) is fixedly connected to a crushing assembly (3) for secondary oil pressing. The linkage component (2) includes a transmission mechanism (21). Two support plates (22) are fixedly installed on the upper right side of the mounting plate (5). A rotating shaft (23) is rotatably connected to the inner wall of the two support plates (22). A transmission wheel (24) is fixedly sleeved on the right side of the outer wall of the rotating shaft (23). The bottom of the transmission mechanism (21) is fixedly connected to the bottom right side of the oil press (1). The top of the transmission mechanism (21) is connected to the outer wall of the transmission wheel (24). The upper left side of the mounting plate (5) is penetrated and fixedly connected to... A feed shell (25) is connected, and a top plate (26) is fixedly installed on the top of the inner wall of the feed shell (25). A connecting plate (27) is fixedly installed on the upper right side of the top plate (26). A linkage shaft (28) is rotatably connected to the inner wall of the connecting plate (27). A pulley one (29) is fixedly sleeved on the right side of the outer wall of the linkage shaft (28). A pulley two (210) is fixedly sleeved on the middle of the outer wall of the rotating shaft (23). A belt is drivingly connected to the outer surface of the pulley one (29) and the outer surface of the pulley two (210). The secondary oil pressing crushing component (3) includes a protective frame (31). The lower end of the protective frame (31) is fixedly connected to the upper middle part of the top plate (26). The upper middle part of the top plate (26) is located inside the protective frame (31) and is rotatably connected to a sleeve shaft (32). Several ring-shaped chopping blades (33) are fixedly sleeved on the bottom of the outer wall of the sleeve shaft (32). The left side of the outer wall of the linkage shaft (28) passes through the right side of the protective frame (31) and is fixedly connected to a drive mechanism (34). The bottom of the drive mechanism (34) is fixedly connected to the top of the outer wall of the sleeve shaft (32).
2. A screw press for the expression of edible oil as claimed in claim 1, wherein: The transmission mechanism (21) includes a motor (211). A fixing plate is fixedly installed on the bottom of the outer wall of the motor (211). The left side of the fixing plate is fixedly connected to the bottom right side of the oil press (1). The output end of the motor (211) is fixedly connected to the spiral oil pressing mechanism inside the oil press (1). A synchronous pulley (212) is fixedly sleeved on the output end of the motor (211). A synchronous belt (213) is connected to the outer surface of the transmission wheel (24) and the outer surface of the synchronous pulley (212).
3. A screw press for the expression of edible oil as claimed in claim 1, wherein: The outer left side of the rotating shaft (23) is fixedly connected to a material discharge structure (214), the bottom of the feed hopper (4) is a conical structure, and the material discharge structure (214) extends to the bottom of the inner cavity of the feed hopper (4).
4. A screw press according to claim 3, characterised in that: The drive mechanism (34) includes a bevel gear (341). The left side of the outer wall of the linkage shaft (28) passes through the right side of the protective frame (31) and is fixedly connected to the inner wall of the bevel gear (341). The top of the inner wall of the protective frame (31) is rotatably connected to a counter-rotating shaft (342). The outer wall of the counter-rotating shaft (342) is movably sleeved with the inner wall of the sleeve shaft (32). The top of the outer wall of the counter-rotating shaft (342) and the top of the outer wall of the sleeve shaft (32) are fixedly sleeved with oppositely arranged bevel gears (343). The outer surfaces of the two bevel gears (343) mesh with the outer surface of the bevel gear (341).
5. A screw press for the expression of edible oil as claimed in claim 4, wherein: Several ring-shaped shredders (344) are fixedly installed on the bottom of the outer wall of the opposite shaft (342) through the sleeve shaft (32), and the several shredders (344) are staggered with the several shredders (33).
6. A screw press according to claim 1, characterized in that: The feed shell (25) has a conical structure, and the bottom of the feed shell (25) is connected to the feed hopper (4).
7. A screw press according to claim 1, characterized in that: The bottom of the oil press (1) is fixedly equipped with an oil receiving frame (6) that communicates with the underground channel.