Peanut oil cold pressing device capable of reducing lecithin loss

Abstract

This utility model discloses a peanut oil cold pressing device that reduces lecithin loss, belonging to the technical field of low-temperature oil pressing devices. It mainly includes a frame, a front fixed seat fixedly connected to the top front end of the frame, a reduction gear mechanism inside the front fixed seat, a fixed cylinder fixedly connected to the rear side wall of the front fixed seat, a pressing mechanism inside the fixed cylinder, a rear fixed seat fixedly connected to the top rear end of the frame, a first fixed pipe fixedly installed at the front of the rear fixed seat, a cooling oil pressing component mounted on the first fixed pipe, a second fixed pipe fixedly installed at the rear of the rear fixed seat, an installation ring mounted on the second fixed pipe, a cooling limiting pipe fixedly installed at the center of the installation ring, and a residue pressing plate at the rear of the installation ring. This utility model, by setting up a cooling oil pressing component and a cooling limiting pipe, dissipates heat during the peanut pressing process, preventing high temperatures from causing a decrease in the lecithin content of the peanut oil. This utility model is mainly used for pressing peanut oil.

Description

Technical Field

[0001] This utility model belongs to the technical field of low-temperature oil pressing equipment, and more specifically, it relates to a peanut oil cold pressing device that can reduce lecithin loss. Background Technology

[0002] With the development of technology, different principles and types of peanut oil production methods have evolved. Among them, the more traditional method that best preserves the original flavor of peanut oil is the physical pressing method under low temperature conditions. This method does not chemically damage the peanuts, avoids the loss of nutrients such as lecithin in peanut oil caused by high temperatures, and preserves the aroma of peanut oil as much as possible.

[0003] Chinese patent with authorization announcement number "CN221562352U" discloses an oil press, including an oil pressing cylinder, a pressing screw, a drive motor, a feeding cylinder, and an oil outlet cylinder. The oil pressing cylinder is connected in a multi-section detachable manner for easy disassembly and cleaning. An equal-pitch, equal-depth screw is selected as the pressing screw. The pressing screw only plays a conveying role and does not form a grinding role. The pressing screw and the slag discharge head cooperate to form a front-end extrusion mode, so that the oil temperature in the oil pressing cylinder is low and constant during operation, which is suitable for low-temperature cold pressing.

[0004] During later use, the device also had the following problems: lack of cooling function, which prevented the oil press from performing oil pressing operations quickly and efficiently, requiring slow operation to ensure that the temperature remained in a low range. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a peanut oil cold pressing device that can reduce the loss of lecithin. By setting up a cooling pressing component and a cooling limiting pipe, the heat in the peanut pressing process is discharged, so as to avoid the situation where the lecithin content in peanut oil decreases due to high temperature.

[0006] The aforementioned peanut oil cold pressing device, which reduces lecithin loss, includes a frame. A front fixed seat is fixedly connected to the front end of the top of the frame. A deceleration mechanism is installed inside the front fixed seat. A fixed cylinder is fixedly connected to the rear side wall of the front fixed seat. A feed hopper is fixedly installed on the top of the fixed cylinder. Two sets of positioning blocks are fixedly connected to the rear side wall of the fixed cylinder. A pressing mechanism is installed inside the fixed cylinder. A rear fixed seat is fixedly connected to the rear end of the top of the frame. A first fixed pipe is fixedly installed at the front of the rear fixed seat. A cooling oil pressing component is installed on the first fixed pipe. A second fixed pipe is fixedly installed at the rear of the rear fixed seat. An installation ring is installed on the second fixed pipe. A cooling limiting pipe is fixedly installed at the center of the installation ring. A residue pressing plate is installed behind the installation ring. An oil collection tray is fixedly installed in the middle of the frame. A residue collection tray is fixedly installed at the rear of the frame.

[0007] Preferably, the pressing mechanism includes a drive motor, which is fixedly connected to the side wall of the front fixed seat. The output shaft of the drive motor is circumferentially fixed to the reduction mechanism. A push screw is fixedly connected to the other end of the reduction mechanism. A pressing screw is fixedly connected to the rear end of the push screw. The push screw and the pressing screw have cavities inside.

[0008] Preferably, the cooling oil pressing assembly includes a pressing screw ring, which is threadedly connected to the outer wall of a fixed tube. A cooling pressure ring is provided at the front of the pressing screw ring. A water passage chamber is fixedly opened at the top of the cooling pressure ring, and a water outlet extends upward from the water passage chamber. A second water passage chamber is fixedly opened at the bottom of the cooling pressure ring, and a water inlet extends downward from the second water passage chamber. Multiple sets of oil pressing baffles are provided at the front of the cooling pressure ring. An opening is fixedly opened on the front side wall of the oil pressing baffle. A water limiting pipe is fixedly connected to the upper end of the rear side wall of the oil pressing baffle, and a flow limiting pipe is fixedly connected to the lower end of the rear side wall of the oil pressing baffle.

[0009] Preferably, the cooling limiting tube is rotatably connected to the inner wall of the rear part of the extrusion screw, a water inlet cavity is fixedly provided at the center of the rear part of the cooling limiting tube, a water inlet is provided at the rear end of the water inlet cavity, a water supply pipe extends forward from the water inlet cavity, a water outlet cavity is fixedly provided on the outer side of the rear part of the cooling limiting tube, a water outlet is installed on the outer wall of the water outlet cavity, and a water passage hole is fixedly opened at the front end of the water outlet cavity.

[0010] Preferably, the mounting ring includes a limiting inner ring, the inner wall of which slides in contact with the cooling limiting tube, a slag discharge outer ring fixedly connected to the outer side of the limiting inner ring, the slag discharge outer ring being threadedly connected to the inner wall of the fixed tube, and a mounting ring seat fixedly connected to the rear side wall of the limiting inner ring, the outer wall of the mounting ring seat being threadedly connected to the slag pressure plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. By setting up a cooling oil pressing component and rotating the extrusion screw to adjust its position on the outer wall of the fixed tube, multiple sets of oil pressing baffles can be disassembled and installed for easy cleaning. The cooling oil pressing component works with the pressing mechanism to apply huge pressure to the peanuts, so that the pressed peanut oil flows down from the gaps between the multiple sets of oil pressing baffles. In addition, the multiple sets of oil pressing baffles can be cooled down to remove the heat during the peanut pressing process and prevent the lecithin content in the peanut oil from decreasing due to high temperature.

[0013] 2. By installing or removing the installation ring from the inner wall of the fixed pipe, the push screw and the extrusion screw can be limited and fixed, and in conjunction with the slag pressure plate, the opening size of the slag outlet can be adjusted, thereby expanding the slag outlet and quickly discharging the slag when clogging occurs.

[0014] 3. By setting a cooling limit pipe, cold water from the outside can be introduced through the inlet and discharged through the outlet to cool the push screw and the extrusion screw, further improving the cooling capacity of the peanut oil cold pressing device and preventing the loss of nutrients such as lecithin due to high-temperature oxidation. At the same time, the setting of the cooling limit pipe can limit and fix the rear of the extrusion screw, increase the support force, and improve the operational stability of the pressing mechanism. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the rear structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 4 This is a schematic diagram of the overall structure of the rack;

[0019] Figure 5 This is a schematic diagram of the structure of a pressing screw;

[0020] Figure 6 A schematic diagram of the internal structure of the pressing screw and cooling limiting tube;

[0021] Figure 7 A schematic diagram of the exploded structure of a cooling oil pressing assembly;

[0022] Figure 8 This is a schematic diagram of the structure of the oil pressing retaining ring, the cooling pressure ring, and the extrusion screw ring.

[0023] Figure 9 This is a schematic diagram of the internal structure of the cooling oil pressing component;

[0024] Figure 10 for Figure 9 Enlarged view of the structure at point A in the middle;

[0025] Figure 11 for Figure 9 Enlarged view of the structure at point B;

[0026] Figure 12 This is a schematic diagram of the internal structure of the oil pressing baffle ring;

[0027] Figure 13 A structural diagram showing the mounting ring, cooling limit tube, and rear fixing seat;

[0028] Figure 14 This is a schematic diagram of the internal structure of the mounting ring;

[0029] Figure 15An exploded structural diagram of the installation ring, slag pressure plate, and rear fixing seat;

[0030] Figure 16 An exploded structural diagram of the pressing screw, cooling limit tube, mounting ring, and material and residue pressure plate;

[0031] Figure 17 This is a schematic diagram of the internal structure of the mounting ring.

[0032] In the diagram, 1. Frame; 101. Front fixed seat; 102. Rear fixed seat; 102A. Fixed pipe one; 102B. Fixed pipe two; 103. Fixed cylinder; 103A. Feed hopper; 103B. Positioning block; 2. Pressing mechanism; 201. Drive motor; 202. Push screw; 203. Extrusion screw; 3. Cooling oil pressing assembly; 301. Oil pressing retaining ring; 301A. Opening; 301B. Water flow limiting pipe; 301C. Water flow limiting pipe; 302. Cooling pressure ring; 302A, Water outlet; 302B, Water inlet; 302C, Water passage chamber one; 302D, Water passage chamber two; 303, Extrusion screw ring; 4, Cooling limit pipe; 401, Water inlet chamber; 401A, Water inlet; 401B, Water delivery pipe; 402, Water outlet chamber; 402A, Water passage hole; 402B, Water outlet; 5, Mounting ring; 501, Slag discharge outer ring; 502, Limiting inner ring; 503, Mounting ring seat; 6, Slag pressure plate; 7, Oil collection tray; 8, Slag collection tray. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings:

[0034] The directional terms used in the detailed description paragraphs are only for the convenience of those skilled in the art to understand the technical solutions described in this application based on the visual orientation shown in the accompanying drawings. Unless otherwise expressly specified and limited, the terms "setting," "installation," "connection," etc., should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] like Figure 1 , Figure 2 and Figure 4As shown, a peanut oil cold pressing device that reduces lecithin loss includes a frame 1. A front fixed seat 101 is fixedly connected to the top front end of the frame 1. A reduction mechanism is installed inside the front fixed seat 101. By setting the reduction mechanism, the torque of the drive motor 201 can be amplified to drive the push screw 202 and the extrusion screw 203 to rotate for oil pressing. The reduction mechanism is a reduction gear set, which can amplify the torque of the drive motor 201. A fixed cylinder 10 is fixedly connected to the rear side wall of the front fixed seat 101. 3. A feeding hopper 103A is fixedly installed at the top of the fixed cylinder 103. Two sets of positioning blocks 103B are fixedly connected to the rear side wall of the fixed cylinder 103. A pressing mechanism 2 is installed inside the fixed cylinder 103. By setting the pressing mechanism 2, the peanut kernels entering from the feeding hopper 103A are continuously pushed and squeezed backward. The pressed peanut oil flows out from the gap of the cooling oil pressing component 3 and falls into the oil collection tray 7. The remaining residue is further squeezed backward, discharged from the mounting ring 5, and falls into the residue collection tray 8 at the bottom.

[0036] A rear fixing seat 102 is fixedly connected to the top rear end of the frame 1. A fixing pipe 102A is fixedly installed at the front of the rear fixing seat 102. A cooling oil pressing component 3 is installed on the fixing pipe 102A. By setting the cooling oil pressing component 3, the position of the extrusion screw 303 on the outer wall of the fixing pipe 102A can be adjusted by rotating the extrusion screw 303, so that multiple sets of oil pressing baffles 301 can be disassembled and installed for easy cleaning. The cooling oil pressing component 3 works with the pressing mechanism 2 to apply huge pressure to the peanuts, so that the pressed peanut oil flows down from the gaps between the multiple sets of oil pressing baffles 301. Cold water is introduced from the water inlet 302B. The cold water can flow through the entire oil pressing baffle 301 and then be discharged from the water outlet 302A, thereby cooling down the multiple sets of oil pressing baffles 301 and dissipating the heat during the peanut pressing process, thus preventing the lecithin content in the peanut oil from decreasing due to high temperature.

[0037] A fixing pipe 102B is fixedly installed at the rear of the rear fixing seat 102. An installation ring 5 is installed on the fixing pipe 102B. By installing or removing the installation ring 5 from the inner wall of the fixing pipe 102B, the pushing screw 202 and the extrusion screw 203 can be limited and fixed. This, in conjunction with the slag pressing plate 6, adjusts the opening size of the slag outlet, thereby widening the pressing opening and quickly discharging the slag when blockage occurs. A cooling limiting pipe 4 is fixedly installed at the center of the installation ring 5. By setting the cooling limiting pipe 4, external cold water can be introduced from the inlet 401A and discharged from the outlet 402B to cool the pushing screw 202 and the extrusion screw 203, further improving the cooling capacity of the peanut oil cold pressing device and preventing the loss of nutrients such as lecithin due to high-temperature oxidation. Simultaneously, the cooling limiting pipe 4 can limit and fix the rear of the extrusion screw 203, improving the operational stability of the pressing mechanism 2. A slag pressure plate 6 is provided at the rear of the mounting ring 5. By rotating the slag pressure plate 6, its position on the mounting ring 5 can be adjusted, thereby changing the opening size of the slag discharge port. An oil collection tray 7 is fixedly installed in the middle of the frame 1, and a slag collection tray 8 is fixedly installed at the rear of the frame 1.

[0038] like Figure 3 and Figure 5 As shown, the pressing mechanism 2 includes a drive motor 201, which is fixedly connected to the side wall of the front fixed seat 101. The output shaft of the drive motor 201 is circumferentially fixed to the reduction mechanism. A push screw 202 is fixedly connected to the other end of the reduction mechanism, and a pressing screw 203 is fixedly connected to the rear end of the push screw 202. Both the push screw 202 and the pressing screw 203 have cavities inside. The push screw 202 cooperates with the fixed cylinder 103 to continuously push the peanut fragments backward and gradually increase the pressing pressure. During this stage, the temperature of the peanut fragments gradually rises with the pressing. This brief heating process helps to break down the cell structure, release oil, reduce oil viscosity, and improve oil yield and oil quality. The thread depth of the rear end of the pressing screw 203 gradually decreases, increasing the pressing force on the peanut fragments. During this stage, both the pressing screw 203 and the oil pressing baffle 301 cool the peanut fragments to prevent the loss of nutrients.

[0039] like Figure 7 and Figure 8As shown, the cooling oil pressing assembly 3 includes a compression screw ring 303, which is threaded to the outer wall of the fixed pipe 102A. A cooling pressure ring 302 is located at the front of the compression screw ring 303. Rotating the compression screw ring 303 changes its position on the rear fixed seat 102. After multiple sets of oil pressing retaining rings 301 and cooling pressure rings 302 are assembled, rotating the compression screw ring 303 applies pressure forward, completing the installation of the entire cooling oil pressing assembly 3. When the cooling oil pressing assembly 3 needs to be disassembled and cleaned, the compression screw ring 303 is rotated in the opposite direction to loosen the oil pressing retaining rings 301 and cooling pressure rings 302, allowing them to be removed. Figure 9 As shown, a water passage cavity 302C is fixedly opened at the top of the cooling pressure ring 302. A water outlet 302A extends upward from the water passage cavity 302C. A water passage cavity 302D is fixedly opened at the bottom of the cooling pressure ring 302. A water inlet 302B extends downward from the water passage cavity 302D. External cooling water flows into the water passage cavity 302D from the water inlet 302B and into the internal cavity of the oil pressing baffle ring 301. After cooling multiple sets of oil pressing baffle rings 301, the heated cooling water flows into the water passage cavity 302C and is discharged from the water outlet 302A.

[0040] The front of the cooling pressure ring 302 is provided with multiple sets of oil pressing baffles 301, such as Figure 10 , Figure 11 and Figure 12 As shown, an opening 301A is fixedly formed on the front side wall of the oil pressing baffle ring 301. A water-limiting pipe 301B is fixedly connected to the upper end of the rear side wall of the oil pressing baffle ring 301, and a water-flowing limiting pipe 301C is fixedly connected to the lower end of the rear side wall of the oil pressing baffle ring 301. Multiple sets of openings 301A are provided. Both the water-limiting pipe 301B and the water-flowing limiting pipe 301C mate with the openings 301A. When multiple sets of oil pressing baffle rings 301 are assembled, the protruding parts of the water-limiting pipe 301B and the water-flowing limiting pipe 301C of the previous set of oil pressing baffle rings 301 are inserted into the opening 301A of the next set of oil pressing baffle rings 301, completing the connection and sealing of the two sets of oil pressing baffle rings 301 and preventing internal leakage of the oil pressing baffle rings 301. Water in the cavity may accidentally flow out through the gap in the opening 301A; allowing cooling water to flow between adjacent oil pressing baffles 301. The opening 301A of the foremost oil pressing baffle 301 engages with the positioning block 103B on the fixed cylinder 103. After the positioning block 103B is inserted into the opening 301A, it positions the oil pressing baffle 301 and blocks its opening 301A, preventing cooling water from accidentally flowing out and contaminating the oil. Half of the volume of the water flow limiting pipe 301B is located inside the cavity of the oil pressing baffle 301, and the other half protrudes outward to the outside of the oil pressing baffle 301. The water flow limiting pipe 301B is closed at both ends, and openings are provided on the side walls inside and outside the oil pressing baffle 301. Cooling water can flow into or out of the cavity of the oil pressing baffle 301 through these openings.

[0041] like Figure 6 , Figure 13 and Figure 14 As shown, the cooling limiting tube 4 is rotatably connected to the inner wall of the rear part of the extrusion screw 203. The cooling limiting tube 4 seals the rear part of the extrusion screw 203 to prevent cooling water from flowing out. At the same time, the cooling limiting tube 4 limits the extrusion screw 203 and transmits the shaking of the rear end of the extrusion screw 203 to the rear fixed seat 102, thereby improving the operating stability of the extrusion screw 203. A water inlet cavity 401 is fixedly provided at the center of the rear part of the cooling limiting tube 4. A water inlet 401A is provided at the rear end of the water inlet cavity 401. A water supply pipe 401B extends forward from the water inlet cavity 401. A water outlet cavity 402 is fixedly provided on the outer side of the rear part of the cooling limiting tube 4. A water outlet 402B is installed on the outer wall of the water outlet cavity 402. A water passage hole 402A is fixedly opened at the front end of the water outlet cavity 402. Cooling water flows into the water inlet chamber 401 from the water inlet 401A and into the internal cavity of the extrusion screw 203 and push screw 202 from the water supply pipe 401B. After completing the cooling operation, it passes through the water passage hole 402A, through the water outlet chamber 402, and is discharged from the water outlet 402B.

[0042] like Figure 15 , Figure 16 and Figure 17 As shown, the mounting ring 5 includes a limiting inner ring 502, the inner wall of which slides in contact with the cooling limiting tube 4, thus limiting and fixing the cooling limiting tube 4. The slag discharge outer ring 501 is limited and fixed to the inner wall of the second fixed tube 102B. By rotating the mounting ring 5, it can be removed from the second fixed tube 102B, and the cooling limiting tube 4, the extrusion screw 203, and the push screw 202 can be disassembled and installed for easy maintenance. The slag discharge outer ring is fixedly connected to the outer side of the limiting inner ring 502. 501, the outer ring 501 of the slag discharge device is threadedly connected to the inner wall of the fixed pipe 102B. The inner wall of the outer ring 501 is designed with a slope, and its opening diameter increases towards the rear. The slag pressure plate 6 cooperates with the outer ring 501 of the slag discharge device. As the slag pressure plate gradually moves outward, the gap between it and the outer ring 501 of the slag discharge device increases, allowing the peanut slag to be discharged quickly and avoiding slag blockage. A mounting ring seat 503 is fixedly connected to the rear side wall of the limiting inner ring 502. The outer wall of the mounting ring seat 503 is threadedly connected to the slag pressure plate 6. The position of the slag pressure plate 6 on the mounting ring seat 503 can be adjusted by rotating the slag pressure plate 6.

[0043] Usage process:

[0044] 1. Align the opening 301A of a set of oil pressing baffle rings 301 with the positioning block 103B and insert it. Align the opening 301A of the next set of oil pressing baffle rings 301 with the water flow limit tube 301B and the water flow limit tube 301C of the previous set of oil pressing baffle rings 301 and insert it. Note that the water flow limit tube 301C of the oil pressing baffle ring 301 should be at the bottom and the water flow limit tube 301B should be at the top.

[0045] 2. Install a sufficient number of oil pressing baffles 301 in this way, install the cooling pressure ring 302 at the rear of the last set of oil pressing baffles 301, gradually rotate the extrusion screw 303, let the extrusion screw 303 move forward gradually, and apply extrusion pressure to the entire cooling oil pressing assembly 3 to ensure that the assembly is in place.

[0046] 3. Place the push screw 202 and the extrusion screw 203 into the fixed cylinder 103, insert the water supply pipe 401B of the cooling limiting pipe 4 into the cavity of the push screw 202 and the extrusion screw 203, and block the rear opening of the extrusion screw 203 with the middle part of the cooling limiting pipe 4, align the rear part of the cooling limiting pipe 4 with the inner wall of the limiting inner ring 502, and rotate the mounting ring 5 to install it onto the rear fixed seat 102;

[0047] 4. Screw the slag pressure plate 6 into the mounting ring seat 503 to complete the installation of the entire equipment;

[0048] 5. Connect the external cooling water pipes to the inlet 401A and the inlet 302B respectively to cool the oil pressing component 3 and the cooling limit pipe 4, so as to avoid the content of nutrients such as lecithin due to excessive temperature during the peanut oil pressing process.

[0049] This invention utilizes a cooling oil pressing component 3 and a rotating extrusion screw 303 to adjust its position on the outer wall of the fixed tube 102A. This allows for the disassembly and installation of multiple sets of oil pressing baffles 301, facilitating cleaning. The cooling oil pressing component 3 works in conjunction with the pressing mechanism 2 to apply significant pressure to the peanuts, causing the pressed peanut oil to flow through the gaps between the multiple sets of oil pressing baffles 301. Furthermore, the multiple sets of oil pressing baffles 301 can be cooled to dissipate heat generated during the peanut pressing process, preventing a decrease in lecithin content in the peanut oil due to high temperatures. By installing or removing the mounting ring 5 from the inner wall of the fixed tube 102B, the push screw 202 and the extrusion screw 203 can be limited and fixed. This, in conjunction with the residue pressing plate 6, adjusts the size of the residue outlet opening, thereby widening the pressing opening and quickly discharging the residue when blockage occurs.

Claims

1. A peanut oil cold pressing device that reduces lecithin loss, characterized in that: The machine includes a frame, a front fixed seat fixedly connected to the top front end of the frame, a reduction gear mechanism inside the front fixed seat, a fixed cylinder fixedly connected to the rear side wall of the front fixed seat, a feed hopper fixedly installed on the top of the fixed cylinder, two sets of positioning blocks fixedly connected to the rear side wall of the fixed cylinder, a pressing mechanism inside the fixed cylinder, a rear fixed seat fixedly connected to the top rear end of the frame, a fixed pipe one fixedly installed at the front of the rear fixed seat, a cooling oil pressing component installed on the fixed pipe one, a fixed pipe two fixedly installed at the rear of the rear fixed seat, an installation ring installed on the fixed pipe two, a cooling limit pipe fixedly installed at the center of the installation ring, a residue pressing plate installed behind the installation ring, an oil collection tray fixedly installed in the middle of the frame, and a residue collection tray fixedly installed at the rear of the frame.

2. The peanut oil cold pressing device according to claim 1, characterized in that: The pressing mechanism includes a drive motor, which is fixedly connected to the side wall of the front fixed seat. The output shaft of the drive motor is circumferentially fixed to the reduction mechanism. A push screw is fixedly connected to the other end of the reduction mechanism. A pressing screw is fixedly connected to the rear end of the push screw. The push screw and the pressing screw have cavities inside.

3. The peanut oil cold pressing device according to claim 1, characterized in that: The cooling oil pressing assembly includes a pressing screw ring, which is threadedly connected to the outer wall of a fixed tube. A cooling pressure ring is provided at the front of the pressing screw ring. A water passage chamber is fixedly opened at the top of the cooling pressure ring, and a water outlet extends upward from the water passage chamber. A second water passage chamber is fixedly opened at the bottom of the cooling pressure ring, and a water inlet extends downward from the water passage chamber. Multiple sets of oil pressing baffles are provided at the front of the cooling pressure ring. An opening is fixedly opened on the front side wall of the oil pressing baffle. A water limiting pipe is fixedly connected to the upper end of the rear side wall of the oil pressing baffle, and a flow limiting pipe is fixedly connected to the lower end of the rear side wall of the oil pressing baffle.

4. The peanut oil cold pressing device according to claim 1, characterized in that: The cooling limiting tube is rotatably connected to the inner wall of the rear part of the extrusion screw. A water inlet chamber is fixedly provided at the center of the rear part of the cooling limiting tube. A water inlet is provided at the rear end of the water inlet chamber. A water supply pipe extends forward from the water inlet chamber. A water outlet chamber is fixedly provided on the outer side of the rear part of the cooling limiting tube. A water outlet is installed on the outer wall of the water outlet chamber. A water passage hole is fixedly opened at the front end of the water outlet chamber.

5. The peanut oil cold pressing device according to claim 1, characterized in that: The mounting ring includes a limiting inner ring, the inner wall of which slides in contact with the cooling limiting tube, and a slag discharge outer ring fixedly connected to the outer side of the limiting inner ring. The slag discharge outer ring is threadedly connected to the inner wall of the second fixed tube. A mounting ring seat is fixedly connected to the rear side wall of the limiting inner ring, and the outer wall of the mounting ring seat is threadedly connected to the slag pressure plate.

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