A sunflower seed oil processing oil pressing device

Abstract

The application discloses sunflower oil processing oil pressing equipment, relates to the technical field of oil pressing equipment, and optimizes and improves the problems of temperature loss of control, poor pressure and oil yield coordination, and limited oil quality and oil yield in the traditional sunflower oil pressing process, and is characterized by a through-hole cooling assembly and a moving main shaft. A gas exchange sliding sleeve and a directional special-shaped sleeve are arranged in equidistance correspondence on a central through pipe, the inside of the moving main shaft is divided into multiple independent cavities, one end of the central through pipe performs a ventilation action, a gas exchange port is arranged at the other end of the moving main shaft to form a gas circulation passage, and a cooperative management system is additionally arranged. The pressure and temperature sensing assemblies in the independent cavities collect data in real time, ventilation parameters and pressure parameters are reversely linked and controlled, local cavity precise air / gas supplementing can be realized through an auxiliary through rod, a partition precise temperature control and pressure-temperature cooperative control process are formed, the oil yield and quality of sunflower oil are effectively improved, and energy consumption and raw material waste are reduced.

Description

Technical Field

[0001] This invention relates to the field of oil pressing equipment technology, and specifically to an oil pressing device for processing sunflower seed oil. Background Technology

[0002] The traditional sunflower seed oil pressing method involves continuously applying pressure to the raw material (sunflower seeds) within a constant pressure / temperature range to release the oil from the raw material under high pressure. Logically, the greater the pressure applied to the raw material / the greater the pressure amplitude, the more oil is released. However, in practice, this may have the opposite effect.

[0003] Firstly, the pressing process provides a certain temperature environment, which can accelerate cell rupture and promote oil release. However, during continuous pressing, the temperature becomes too concentrated as the raw material continues to focus, especially the internal temperature of the raw material. Furthermore, according to the principle of mechanical energy conversion, heat energy is released due to mechanical kinetic energy during the continuous focusing of the raw material, which also affects the temperature environment. If the temperature is too high, it will destroy unsaturated fatty acids (producing a burnt taste) or indirectly affect the oil nutrition and oil yield. Secondly, during the pressure release process, if the pressure increase is large, causing the compression rate of the raw material to be significantly greater than the oil yield, then the following problems exist: when the maximum compression is reached, the continuous pressure process will only waste energy and will not affect the oil yield; and during the period of reaching the maximum compression, the oil is not fully released, resulting in a portion of the oil remaining in the raw material after reaching the maximum compression, thus resulting in raw material waste. This invention proposes a solution to this problem. Summary of the Invention

[0004] The purpose of this invention is to provide an oil pressing device for sunflower seed oil processing, which addresses the significant fluctuations in pressure and temperature environments relative to the pressing action in sunflower seed oil pressing. This is actually related to the synergistic relationship between compression and oil yield, as well as the energy conversion process between the pressing action and heat energy, which may lead to disordered temperature / pressure fluctuations that affect oil quality and yield.

[0005] The objective of this invention can be achieved through the following technical solution: an oil pressing device for processing sunflower seed oil, including a frame and a material conveying channel, wherein an action main shaft parallel to its length direction is provided in the material conveying channel, a feeding component assembly is provided on the outside of the action main shaft, and a through-cooling assembly is provided on the inside of the main shaft, wherein the through-cooling assembly includes a central through pipe, a ventilation sleeve and a directional irregular sleeve. The central tube is rotatably connected to the main shaft, and the ventilation sleeve and the directional sleeve are positioned correspondingly, with the ventilation sleeve and the directional sleeve being equidistantly arranged on the central tube along its linear direction. One end of the central pipe is used to perform the ventilation action, and the main shaft is provided with an air exchange port at the other end of the central pipe. The feeding assembly performs the pressing action. The ventilation action and the pressing action are performed synchronously and form a collaborative management system between them.

[0006] Further configuration: the position of one end of the main shaft corresponding to the air exchange port is set as the power input position, and the two ends of the material conveying channel corresponding to the air exchange port setting direction are respectively set as the feed position and the slag discharge position.

[0007] The further configuration is as follows: a screen assembly is provided at the external position of the frame corresponding to the material conveying channel, the feeding component assembly is arranged sequentially along the length direction of the main shaft, and the diameter of the feeding component assembly increases along the direction from the feed position to the slag discharge position.

[0008] The configuration is further defined as follows: the directional irregular sleeve is fixedly connected to the inner wall of the main shaft, and the ventilation sleeve is slidably connected to the central through pipe.

[0009] The configuration is further defined as follows: the middle position of the inner wall of the oriented irregular sleeve is maintained in a sliding connection with the outer wall of the ventilation sliding sleeve, and the diameter of the two ends of the inner wall of the oriented irregular sleeve is larger than the outer diameter of the ventilation sliding sleeve.

[0010] Further configuration: the main shaft is divided into multiple independent cavities by the setting positions of the ventilation sleeve and the directional irregular sleeve; the central pipe has a ventilation groove on the outer wall of the middle part of two adjacent independent cavities; and multiple auxiliary rods corresponding to the ventilation sleeve are installed on the central pipe.

[0011] Further configuration: the independent cavities are numbered i sequentially along the direction from the slag outlet to the feed inlet; the location of the air exchange port is connected to the independent cavity numbered i; and no air permeable groove is opened on the outer wall of the central through pipe corresponding to the independent cavity numbered i.

[0012] The configuration is further defined as follows: the number of auxiliary through rods is matched with the number of ventilation sleeves, and the auxiliary through rods are arranged in a circular array along the center point of the central through pipe.

[0013] The auxiliary passage rod is further configured such that one end of the auxiliary passage rod, located outside the central passage pipe, is configured as an auxiliary air supply port, and the other end of the auxiliary passage rod is connected to the interior of one of the independent cavities.

[0014] The system is further configured to: install pressure and temperature sensing components in each independent cavity through the collaborative management system, and acquire the pressure and temperature values ​​in the independent cavity in real time; and control the ventilation parameters in the ventilation action, the pressing parameters in the pressing action, and generate auxiliary air replenishment actions through the auxiliary air replenishment port based on the pressure and temperature values ​​in multiple independent cavities.

[0015] The present invention has the following beneficial effects: 1. Improvements have been made to address temperature and pressure fluctuations during the oil pressing process. Based on the main shaft, a through-cooling component is installed inside it. Low-temperature gas is introduced into multiple independent cavities through a central pipe, achieving indirect zoned temperature control of the main shaft, feeding assembly, and corresponding sections of raw materials. Compared with conventional cooling methods, this avoids localized temperature accumulation and effectively solves the problem of localized overheating of raw materials caused by the conversion of mechanical pressing kinetic energy into heat energy. It also prevents the destruction of unsaturated fatty acids and the generation of burnt flavors in the raw materials, while preserving the nutrients in sunflower seed oil and improving the quality of the finished oil product.

[0016] The design features independent cavities that allow for precise control of heat exchange time and intensity in different pressing sections (from feed to slag discharge) by adjusting the cavity volume through the sliding of the ventilation sleeve. This, combined with a low-temperature gas circulation path, ensures that the pressing temperature remains within a reasonable threshold throughout the process. Pressure and temperature sensors within each independent cavity can acquire real-time pressure and temperature data for different pressing sections, enabling reverse-linking control of ventilation parameters (airflow rate and temperature) and pressing parameters (spindle speed). This ensures pressing pressure while preventing localized overheating, achieving a precise match between pressure and oil yield. This improves overall oil yield while reducing waste caused by residual oil in the raw materials. Furthermore, the auxiliary guide rod allows for precise air / cooling replenishment in local cavities, supplementing the overall control and specifically correcting parameter deviations in individual cavities. This prevents imbalances in the pressing environment of other sections caused by overall control, further optimizing the stability of the pressing process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an oil pressing device for processing sunflower seed oil proposed in this invention; Figure 2 This is a schematic diagram of the feeding component assembly in this invention; Figure 3 For the present invention Figure 2 A sectional view of the main axis of motion; Figure 4 For the present invention Figure 3 A front view of a partial location in the middle; Figure 5 This is a schematic diagram of the through-core cooling assembly in this invention.

[0019] In the diagram: 1. Material conveying channel; 2. Frame; 3. Main shaft; 301. Air vent; 4. Screen assembly; 101. Feeding position; 102. Slag discharge position; 5. Feeding component assembly; 6. Oriented sleeve; 7. Auxiliary rod; 8. Air venting sleeve; 9. Central pipe. Detailed Implementation

[0020] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Addressing the significant fluctuations in pressure and temperature environments relative to the pressing action in sunflower seed oil pressing, which stem from the synergistic relationship between compression and oil yield, and the energy conversion process between the pressing action and heat energy, this issue can lead to erratic temperature / pressure fluctuations that affect oil quality and yield. The following technical solution is proposed to address this problem: Reference Figures 1-5 An oil pressing device for processing sunflower seed oil in this embodiment includes a frame 2 and a material conveying channel 1. An action spindle 3 parallel to its length direction is set in the material conveying channel 1. A feeding component assembly 5 is set on the outside of the action spindle 3, and a through-cooling component is set on the inside of it. The through-cooling component includes a central pipe 9, a ventilation sleeve 8 and a directional irregular sleeve 6. The central tube 9 is rotatably connected to the main shaft 3. The ventilation sleeve 8 and the directional sleeve 6 are positioned correspondingly, and the ventilation sleeve 8 and the directional sleeve 6 are equidistantly arranged on the central tube 9 along its linear direction. One end of the central pipe 9 is used to perform the ventilation action. The other end of the main shaft 3 corresponding to the central pipe 9 is provided with an air exchange port 301. The feeding assembly 5 performs the pressing action. The ventilation action and the pressing action are performed synchronously and form a collaborative management system between them. One end of the main shaft 3 corresponding to the air exchange port 301 is set as the power input position. The two ends of the conveying channel 1 corresponding to the air exchange port 301 are respectively provided with a feed position 101 and a slag discharge position 102. The frame 2 is provided with a screen assembly 4 corresponding to the external position of the conveying channel 1. The feeding assembly 5 is arranged sequentially along the length of the main shaft 3, and the diameter of the feeding assembly 5 increases along the direction from the feed position 101 to the slag discharge position 102.

[0022] Basic principle explanation: The oil pressing process is briefly explained as follows: The roasted raw material (mainly sunflower seeds in this invention) is squeezed to extract oil. Conventional methods include hydraulic oil pressing and screw oil pressing. Because the hydraulic pressure in the hydraulic oil pressing method is relatively constant and direct, and the raw material needs to be pre-treated to form an oil cake, this invention mainly uses the screw oil pressing method. The roasted raw material is directly fed into the feed position 101. A power source is set at one end of the power main shaft 3 to drive the power main shaft 3 to rotate in a directional uniform / variable speed. The oil is extracted through the continuous squeezing process of the raw material by the feeding assembly 5. This invention mainly optimizes the pressure and temperature changes during the oil pressing process. The pressure changes mainly come from the continuous extrusion of the raw material by the feeding assembly 5. However, the raw material has a certain amount of heat before oil pressing. During the continuous oil pressing process, due to the conversion between mechanical action and heat energy, the temperature of the raw material in a local area continues to rise. Once the temperature exceeds the limit, it will mainly damage the raw material, such as producing a burnt taste and destroying nutrients. Crucially, it will also affect the oil yield. Therefore, the present invention does not optimize the structure of the feeding assembly 5. Specifically, it sets a through-cooling component inside the main shaft 3. In essence, it indirectly controls the temperature of the raw material, the main shaft 3, and the feeding assembly 5 by injecting low-temperature gas into it. It can also indirectly reflect the extrusion state of the raw material based on the temperature change inside it.

[0023] Example 2: Explanation of the through-cooling assembly installed inside the spindle: The directional sleeve 6 is fixedly connected to the inner wall of the main shaft 3, while the ventilation sleeve 8 is slidably connected to the central pipe 9. The middle section of the inner wall of the directional sleeve 6 is slidably connected to the outer wall of the ventilation sleeve 8, and the diameters at both ends of the inner wall of the directional sleeve 6 are larger than the outer diameter of the ventilation sleeve 8. The main shaft 3 is divided into multiple independent cavities by the placement of the ventilation sleeve 8 and the directional sleeve 6. The central pipe 9 has ventilation grooves on the outer wall corresponding to the middle section of two adjacent independent cavities. Multiple auxiliary fittings corresponding to the ventilation sleeve 8 are installed on the central pipe 9. The auxiliary guide rods 7 are numbered i sequentially along the direction from the slag outlet 102 to the feed inlet 101. The opening position of the air exchange port 301 is connected to the i-th independent cavity. No air vent is opened on the outer wall of the central pipe 9 corresponding to the i-th independent cavity. The number of auxiliary guide rods 7 matches the number of air exchange sleeves 8. The auxiliary guide rods 7 are arranged in a ring array along the center point of the central pipe 9.

[0024] Solution Description: First, the core components of the through-cooling assembly are explained: the directional sleeve 6 is fixedly connected to the inner wall of the main shaft 3, the ventilation sleeve 8 is slidably connected to the central pipe 9, and the middle of the inner wall of the directional sleeve slides into the outer wall of the ventilation sleeve. The diameter of the two ends of its inner wall is larger than the outer diameter of the ventilation sleeve. Through the combination of the ventilation sleeve 8 and the directional sleeve 6, the inside of the main shaft 3 is divided into multiple independent cavities, which are numbered i sequentially from the slag outlet to the feed outlet. One end of the central pipe 9 performs the ventilation action, and its outer wall has a ventilation groove at the middle position of the adjacent independent cavity (the independent cavity numbered i has no ventilation groove at the corresponding position). The central pipe is also equipped with an auxiliary through rod 7 in a ring array matching the number of ventilation sleeves. One end of the auxiliary through rod is an auxiliary air supply port, and the other end is connected to the corresponding independent cavity. At the same time, the independent cavity numbered i is connected to the ventilation port 301 of the main shaft. The auxiliary heat exchange of the main shaft 3 is achieved through the through-cooling assembly. The process includes the following steps: Low-temperature gas enters from the vent end of the central pipe 9 and enters each independent cavity (except for cavity number i) through the vent groove on the outer wall of the pipe. It exchanges heat with the inner wall of the main shaft 3, indirectly reducing the temperature of the main shaft, the feeding assembly and the raw material. This prevents the kinetic energy of mechanical pressing from being converted into heat energy, which would cause local overheating of the raw material. During the rotation of the main shaft, the gas that has completed the heat exchange is collected in the independent cavity number i and discharged through the air exchange port 301, forming a stable gas circulation path. When the temperature or pressure parameters in some independent cavities are abnormal, the collaborative management system can control the auxiliary air supply port of the auxiliary pipe 7 to replenish a certain amount of gas to the corresponding cavity, thereby achieving precise parameter correction in the local area. The key points of the above content are as follows: S1: Reference Figure 4 To explain, in the initial state, the auxiliary rod 7 can be used as a "spring element." A fixed amount of low-temperature or variable-temperature gas is introduced into each independent cavity in the initial state. The purpose is to change the position of the ventilation ring sleeve 8 relative to the directional irregular sleeve 6 by limiting the gas pressure in each independent cavity. The optimal position is indicated as follows: Figure 4 The position in the middle, that is, the ventilation sleeve 8 just contacts the directional irregular sleeve 6, and each independent cavity is connected only through the ventilation groove; S2: In actual use, the difference in pressure applied to the raw material by the feeding assembly 5 may cause local temperature fluctuations or temperature fluctuations caused by pressure fluctuations. Therefore, the temperature in the corresponding independent cavity will fluctuate. The temperature and volume of the low-temperature gas input into each independent cavity are constant in the initial state, but in reality, the air pressure and temperature in the independent cavity fluctuate. Under the dual action of air pressure and temperature, the ventilation arc sleeve 8 can be driven to slide in a direction to change the volume inside each independent cavity. The key purpose of the low-temperature gas is to control the temperature of the local position of the main shaft 3. Its key purpose is to achieve zoned temperature control of different sections of the main shaft through the separation design of independent cavities, avoid the problem of uneven local temperature caused by traditional overall cooling, effectively prevent the raw material from producing a burnt taste due to overheating and destroying nutrients such as unsaturated fatty acids. The gas temperature in the independent cavity can indirectly reflect the pressing heat production state of the raw material in the corresponding section, providing real-time data support for subsequent coordinated control. S3: The low-temperature gas injected into the main shaft 3 can eventually be discharged through the air exchange port, thereby constructing a dual control mode of air intake and exhaust, that is, controlling the air intake at the air intake port and limiting the exhaust at the exhaust port. The purpose is to limit the residence time of the low-temperature gas in each independent cavity and maintain its heat exchange time. The above can be understood as follows: the purpose of the separate design of each independent cavity is to achieve the synchronous coordination of the pressing action and the ventilation action, solve the problem of pressure and temperature fluctuation disorder in traditional equipment, ensure the stability of the environment throughout the pressing process, and "transfer" the problem of local temperature accumulation to other independent cavities to avoid negative problems caused by excessively high local temperatures. Furthermore, the method of creating the ventilation channels needs clarification: the central through-pipe 9 is not completely connected through the ventilation channels, such as... Figure 4 , Figure 3 , Figure 5 As shown, there are 6 directional irregular sleeves 6, so there are also 6 venting slots. However, the 6th venting slot is not connected to the vent 301. The purpose is to prevent gas from being directly supplied to the main shaft 3 through the central pipe 9 and then directly discharged through the vent 301. This ensures that the overall low-temperature gas flow process can only be achieved by coordinating the movement of multiple ventilation sleeves 8. For example, if the ventilation sleeve 8 moves to the left and exposes a gap, it will ensure the flow of low-temperature gas. This also lays the foundation for the subsequent collaborative management system. The overall process is used to limit the low-temperature gas flow rate (limit the heat exchange time) and limit the temperature change of the low-temperature gas (heat exchange difference). S4: To further supplement: In actual use, unexpected problems may cause the overall cooling assembly to malfunction. To address this, an auxiliary through rod 7 is set up based on the ventilation sleeve 8. The principle of the auxiliary through rod 7 is the same as that of the central through pipe 9, both of which are used to inject low-temperature gas into the independent cavity. However, the setting method is different: First, its number is the same as that of the ventilation sleeve 8, and each auxiliary through rod 7 can only replenish low-temperature gas into one independent cavity. It is an auxiliary action in the overall operation process.

[0025] Example 3: A supplementary explanation of the collaborative management system is provided, combining Examples 1 and 2, focusing on controlling the pressure and temperature environments: The collaborative management system sets pressure and temperature sensing components in each independent cavity and acquires the pressure and temperature values ​​in the independent cavity in real time. Based on the pressure and temperature values ​​in multiple independent cavities, it controls the ventilation parameters in the ventilation action, the pressing parameters in the pressing action, and generates auxiliary air replenishment actions through the auxiliary air replenishment port.

[0026] Solution Description: First, a brief explanation of the overall system operation: The system deploys pressure and temperature sensors in each independent cavity within the main shaft. The core data collected are the real-time pressure values ​​(P1, P2...Pi) and real-time temperature values ​​(T1, T2...Ti) of each cavity, where i represents the number of independent cavities. Different numbered cavities correspond to different pressing sections within the material conveying channel (smaller numbers indicate closer proximity to the slag outlet and higher pressing degree; larger numbers indicate closer proximity to the feed inlet and lower pressing degree). Therefore, the pressure and temperature data of the cavities can be directly mapped to the raw material pressing state of the corresponding section, as shown below: The cavity near the feed position (large number): the pressure value is low and the temperature value is moderate, corresponding to the initial pressing stage of the raw material; Cavities near the slag outlet (smaller numbers): Pressure values ​​are relatively high and temperature values ​​are prone to rise, corresponding to the deep pressing stage of raw materials; To address this, pressure thresholds (Pmin~Pmax) and temperature thresholds (Tmin~Tmax) for different pressing sections can be preset based on production parameters. The determination method is as follows: Single cavity parameter determination: The real-time P value and T value collected for each cavity are compared with the threshold of the corresponding section, and the statuses such as "normal parameters", "pressure exceeds the standard", "pressure is insufficient", "temperature exceeds the standard" and "temperature is too low" are marked. Multi-cavity linkage judgment: If multiple adjacent cavities show abnormal parameters at the same time (such as the temperature of 3 consecutive cavities exceeding the standard), it is judged as a regional pressing environment imbalance. If only a single cavity has abnormal parameters, it is judged as a local parameter deviation, providing a basis for subsequent differentiated control. The key is that each independent cavity is equipped with pressure and temperature sensing components, which can collect the pressure and temperature values ​​of each cavity in real time, and establish a linkage control mode for ventilation parameters, material pressing parameters and auxiliary air replenishment actions. Firstly, the coordination between ventilation and pressing actions is crucial: when the temperature of multiple cavities in a certain area exceeds the standard (T_actual > T_max), it indicates that the heat generated by mechanical pressing in that area has exceeded the reasonable range. The system will simultaneously execute two actions: firstly, increase the ventilation volume of the central pipe and reduce the ventilation temperature (to enhance the overall cooling intensity); secondly, reduce the speed of the main shaft (to slow down the pressing rhythm of the feeding assembly and reduce the conversion of mechanical kinetic energy into heat energy). This controls the temperature from two dimensions: "active cooling" and "reducing heat generation." If the temperature in a certain area is too low (T_actual < T_min), the ventilation volume will be reduced simultaneously and the main shaft speed will be appropriately increased to ensure the basic temperature required for oil release. When the cavity pressure in a certain area exceeds the standard and the oil output monitoring data does not increase synchronously (indicating that the raw material has reached the maximum compression), the system will reduce the spindle speed (reduce the pressing pressure) and at the same time reduce the air volume in the corresponding area (to avoid the low temperature from further inhibiting the oil flow). If the pressure in a certain area is insufficient (P_actual < P_min), the spindle speed will be increased (increase the pressing pressure) and the normal air volume will be maintained to ensure the pressure increase while avoiding local overheating. Secondly, it lies in the local compensation process of the auxiliary air replenishment action: the auxiliary air replenishment action is a supplement to the overall ventilation and pressing action, and only targets the local parameters of a single independent cavity. If the pressure of a certain cavity is slightly low but the parameters of the surrounding area are normal, the system controls the auxiliary passage rod corresponding to the cavity to open the auxiliary air replenishment port, replenish a certain amount of gas to increase the local pressure, and avoid the pressure in other areas from exceeding the standard due to the overall increase of the spindle speed. If the temperature of a certain cavity is slightly high but has not reached the overall control threshold, low-temperature gas can be added through the auxiliary gas inlet to achieve precise local cooling without affecting the normal pressing environment of other sections.

[0027] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A pressing device for processing sunflower seed oil, comprising a frame (2) and a conveying channel (1), characterized in that, A moving spindle (3) parallel to its length direction is provided in the material conveying channel (1). A feeding component assembly (5) is provided on the outside of the moving spindle (3), and a through-cooling assembly is provided on its inside. The through-cooling assembly includes a central through pipe (9), an air-ventilating sleeve (8), and a directional irregular sleeve (6). The central tube (9) is rotatably connected to the main shaft (3), the ventilation sleeve (8) and the directional sleeve (6) are positioned correspondingly, and the ventilation sleeve (8) and the directional sleeve (6) are equidistantly arranged on the central tube (9) along its linear direction. One end of the central pipe (9) is used to perform the ventilation action, and the main shaft (3) is provided with an air exchange port (301) at the other end of the central pipe (9). The feeding assembly (5) performs the pressing action. The ventilation action and the pressing action are performed synchronously and form a collaborative management system between them.

2. The oil pressing equipment for sunflower seed oil processing according to claim 1, characterized in that, The main shaft (3) is set as a power input position at one end of the air exchange port (301), and the material conveying channel (1) is set as a feed position (101) and a slag discharge position (102) at both ends of the direction of the air exchange port (301).

3. The oil pressing equipment for sunflower seed oil processing according to claim 1, characterized in that, The frame (2) is provided with a screen assembly (4) at the external position of the material conveying channel (1). The feeding component assembly (5) is arranged sequentially along the length direction of the main shaft (3), and the diameter of the feeding component assembly (5) increases along the direction from the feed position (101) to the slag discharge position (102).

4. The oil pressing equipment for sunflower seed oil processing according to claim 1, characterized in that, The directional sleeve (6) is fixedly connected to the inner wall of the main shaft (3), and the ventilation sleeve (8) is slidably connected to the central tube (9).

5. The oil pressing equipment for sunflower seed oil processing according to claim 4, characterized in that, The directional sleeve (6) maintains a sliding connection with the outer wall of the ventilation sleeve (8) at the middle position of the inner wall, and the diameter of the two ends of the directional sleeve (6) is greater than the outer diameter of the ventilation sleeve (8).

6. The oil pressing equipment for sunflower seed oil processing according to claim 5, characterized in that, The main shaft (3) is divided into multiple independent cavities by the setting positions of the ventilation sleeve (8) and the directional sleeve (6). The central tube (9) has a ventilation groove on the outer wall of the middle part of two adjacent independent cavities. Multiple auxiliary tubes (7) corresponding to the ventilation sleeve (8) are installed on the central tube (9).

7. The oil pressing equipment for sunflower seed oil processing according to claim 6, characterized in that, The independent cavities are numbered i sequentially along the direction from the slag outlet (102) to the feed inlet (101). The opening position of the air exchange port (301) is connected to the independent cavity numbered i. The central pipe (9) does not have an air vent groove on the outer wall position corresponding to the independent cavity numbered i.

8. The oil pressing equipment for sunflower seed oil processing according to claim 6, characterized in that, The number of auxiliary through rods (7) is matched with the number of ventilation sleeves (8), and the auxiliary through rods (7) are arranged in a ring array along the center point of the central through pipe (9).

9. The oil pressing equipment for sunflower seed oil processing according to claim 8, characterized in that, The auxiliary rod (7) is positioned at one end outside the central tube (9) as an auxiliary air inlet, and the other end of the auxiliary rod (7) is connected to the interior of one of the independent cavities.

10. The oil pressing equipment for sunflower seed oil processing according to claim 9, characterized in that, The collaborative management system sets pressure and temperature sensing components in each independent cavity and acquires the pressure and temperature values ​​in the independent cavity in real time. Based on the pressure and temperature values ​​in multiple independent cavities, it controls the ventilation parameters in the ventilation action, the pressing parameters in the pressing action, and generates auxiliary air replenishment actions through the auxiliary air replenishment port.

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