A raw material screening device for peanut oil production
By designing a double-layer sieve plate structure and a fixing mechanism, the problems of incomplete impurity separation and insufficient equipment flexibility in peanut oil production are solved, achieving efficient grading and screening and rapid replacement, thereby improving the quality of peanut oil and the applicability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG JINYUFANG GRAIN & OIL CO LTD
- Filing Date
- 2025-06-19
- Publication Date
- 2026-06-05
AI Technical Summary
Existing raw material screening devices for peanut oil production suffer from incomplete impurity separation and insufficient equipment flexibility. They cannot simultaneously separate impurities of different particle sizes and graded peanut raw materials, and the screen replacement operation is complicated.
It adopts a double-layer sieve plate structure, with the upper sieve plate having a slightly larger aperture than the lower sieve plate. Combined with the fixed mechanism design, it enables quick disassembly and replacement of the sieve plates. The grading and screening are achieved by a vibration motor, which distinguishes plump peanuts from shriveled and moldy particles.
It improves the oil extraction rate and flavor of peanut oil, simplifies the screen plate replacement process, and enhances the applicability and flexibility of the equipment.
Smart Images

Figure CN224321813U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of peanut oil production technology, and in particular to a raw material screening device for peanut oil production. Background Technology
[0002] The peanut oil production process includes steps such as screening, washing, pressing, and filtering. During the screening process, it is necessary to remove peanuts that are too small, as well as impurities such as peanut shells, gravel, and dust mixed in with the peanuts, in order to ensure the quality of peanut oil.
[0003] Regarding existing related technologies, the inventors believe that they often have the following drawbacks: Existing raw material screening devices for peanut oil production mostly adopt a single-layer sieve plate structure, which can only screen out impurities of a specific size through a single aperture. It cannot simultaneously separate impurities of different particle sizes and grade peanut raw materials, resulting in a high residual rate of fine impurities. Furthermore, it is difficult to effectively distinguish between plump peanuts and shriveled or moldy particles, which directly affects the subsequent pressing oil yield and oil flavor. Moreover, the screens of existing devices usually adopt a fixed installation structure, which requires the removal of bolts or welding parts for replacement. The operation is complicated and time-consuming, making it difficult to adapt to the screening needs of different peanut varieties, resulting in poor equipment flexibility. Utility Model Content
[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of incomplete separation of impurities and insufficient equipment flexibility in the screening process of peanut oil production raw materials. To this end, we propose a raw material screening device for peanut oil production.
[0005] To achieve the above objectives, this application adopts the following technical solution: a raw material screening device for peanut oil production, comprising a housing: a lower screen plate is installed inside the housing, an upper screen plate is rotatably connected to the top of the lower screen plate via a rotating shaft, a discharge port is provided on one side of the housing, a guide block is fixed inside the housing and located below the lower screen plate, a vibration motor is installed on one side of the housing, a transmission rod is fixed to the output end of the vibration motor, a fixing frame is provided on both sides of the lower screen plate, the other side of the fixing frame is fixed to the transmission rod, the aperture of the upper screen plate surface is slightly larger than the aperture of the lower screen plate surface, connecting blocks are fixed on both sides of the lower screen plate, and a fixing mechanism for fixing the connecting blocks is provided on one side of the fixing frame.
[0006] Preferably, the fixing mechanism includes a connecting shell installed on one side of the fixing frame, a screw threaded to the side wall of the connecting shell, a limit block fixed at one end of the screw inside the connecting shell, two movable plates sliding inside the connecting shell, the two movable plates being located on both sides of the limit block, a locking block fixed to the top of the movable plate, and locking grooves matching the locking blocks being opened at both ends of the connecting block.
[0007] Preferably, springs are fixed on both sides inside the connecting shell, and the other end of the spring is fixed to the moving plate.
[0008] Preferably, the limiting block is elliptical in shape.
[0009] Preferably, limit rods are fixed on both sides inside the connecting shell, and through holes matching the limit rods are opened on the surface of the moving plate.
[0010] Preferably, the surface of the screw has multiple strip grooves, which are distributed circumferentially.
[0011] Preferably, the top of the guide block has a sloping surface, and the sloping surface is smooth.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] This invention employs a double-layer sieve structure, consisting of an upper sieve and a lower sieve, with the upper sieve having a slightly larger aperture than the lower sieve. This allows for the grading and screening of peanut raw materials, simultaneously removing impurities of different particle sizes (e.g., large particles are removed on the upper sieve, while small particles are removed on the lower sieve). It also effectively distinguishes between plump peanuts and shriveled or moldy particles, improving the subsequent oil yield and flavor of the oil. Furthermore, the fixed mechanism facilitates quick disassembly and replacement of the double-layer sieve, simplifying operation, increasing efficiency, and enhancing the equipment's applicability. Attached Figure Description
[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:
[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 internal structure of the box of this utility model;
[0017] Figure 3 This is a schematic diagram of the sieve plate connection structure of this utility model;
[0018] Figure 4 This is a cross-sectional view of the connecting shell structure of this utility model.
[0019] Legend: 1. Box body; 2. Lower screen plate; 3. Discharge port; 4. Upper screen plate; 5. Guide block; 6. Vibration motor; 7. Transmission rod; 8. Fixing frame; 9. Connecting block; 10. Connecting shell; 11. Screw; 12. Limiting block; 13. Moving plate; 14. Locking block; 15. Locking groove; 16. Spring; 17. Limiting rod; 18. Through hole. Detailed Implementation
[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.
[0021] Reference Figures 1-4 As shown, this utility model provides a technical solution: a raw material screening device for peanut oil production, including a housing 1; a lower screen plate 2 is installed inside the housing 1, and an upper screen plate 4 is rotatably connected to the top of the lower screen plate 2 via a rotating shaft; a discharge port 3 is provided on one side of the housing 1; a guide block 5 is fixed inside the housing 1, located below the lower screen plate 2; a vibration motor 6 is installed on one side of the housing 1, and a transmission rod 7 is fixed to the output end of the vibration motor 6; fixing frames 8 are provided on both sides of the lower screen plate 2, and the other side of the fixing frame 8 is fixed to the transmission rod 7; the aperture of the upper screen plate 4 is slightly larger than the aperture of the lower screen plate 2; and the lower screen plate 2 is fixed on both sides. The system includes a connecting block 9, and a fixing mechanism for fixing the connecting block 9 is provided on one side of the fixing frame 8. By adopting a double-layer sieve plate structure, namely an upper sieve plate 4 and a lower sieve plate 2, with the aperture of the upper sieve plate 4 being slightly larger than that of the lower sieve plate 2, the system achieves graded screening of peanut raw materials. It can simultaneously remove impurities of different particle sizes, such as large particles being removed on the upper sieve plate 4 and small particles being removed on the lower sieve plate 2. It also effectively distinguishes between plump peanuts and shriveled or moldy particles, improving the subsequent pressing oil yield and oil flavor. At the same time, the fixing mechanism allows for quick disassembly and replacement of the double-layer sieve plates, making the operation simple, efficient, and improving the applicability of the equipment.
[0022] Reference Figures 3-4 As shown in this embodiment, the fixing mechanism includes a connecting shell 10 installed on one side of the fixing frame 8. A screw 11 is threadedly connected to the side wall of the connecting shell 10. A limiting block 12 is fixed at one end of the screw 11 inside the connecting shell 10. Two movable plates 13 slide inside the connecting shell 10. The two movable plates 13 are located on both sides of the limiting block 12. A locking block 14 is fixed at the top of the movable plate 13. Both ends of the connecting block 9 are provided with locking grooves 15 that match the locking blocks 14. Through the design of the fixing mechanism, including the connecting shell 10, screw 11, limiting block 12, movable plate 13, locking block 14 and locking groove 15, by turning the screw 11 to drive the limiting block 12 to rotate, the movable plate 13 is squeezed and pushed, so that the locking block 14 and locking groove 15 can be inserted and separated. This realizes the quick fixing and disassembly of the double-layer screen plate and the connecting blocks 9 on both sides of the lower screen plate 2, simplifies the double-layer screen plate replacement process, improves the equipment flexibility, and is easy to adapt to the screening needs of different varieties of peanuts.
[0023] Reference Figure 4 As shown in this embodiment: springs 16 are fixed on both sides inside the connecting shell 10. The other end of the spring 16 is fixed to the moving plate 13. The moving plate 13 and the connecting shell 10 are connected by the spring 16. When the rotating screw 11 drives the limiting block 12 away from the moving plate 13, the rebound force of the spring 16 will drive the moving plate 13 to pull the locking block 14 out of the slot 15, thereby quickly releasing the fixing of the connecting block 9. At the same time, it ensures the stability of the locking block 14 during the fixing process, reduces the loosening caused by vibration, and further improves the reliability of the screen plate fixing.
[0024] Reference Figure 4 As shown in this embodiment, the limiting block 12 is elliptical in shape. The elliptical design of the limiting block 12 enables the limiting block 12 to push the moving plates 13 on both sides to move synchronously when the screw 11 is rotated, thereby realizing the quick insertion and withdrawal of the locking block 14, simplifying the operation steps and improving work efficiency.
[0025] Reference Figure 4 As shown in this embodiment: Limiting rods 17 are fixed on both sides inside the connecting shell 10, and through holes 18 matching the limiting rods 17 are opened on the surface of the moving plate 13. By setting the limiting rods 17 and the through holes 18, the moving direction of the moving plate 13 is effectively restricted, preventing it from shifting during the fixing process, and further ensuring the accuracy of fixing the double-layer screen plate.
[0026] Reference Figure 4 As shown in this embodiment, the surface of the screw 11 is provided with multiple strip grooves, which are distributed in a circular pattern. The design of the strip grooves increases the friction between the hand and the screw 11, making it easier to apply a larger torque when rotating the screw 11, thereby making it easier to fix and disassemble the double-layer screen plate.
[0027] Reference Figure 2 As shown in this embodiment: the top of the guide block 5 is provided with an inclined surface, and the inclined surface is smooth. By providing a smooth inclined surface at the top of the guide block 5, the peanut raw material can smoothly slide down the inclined surface to the discharge port 3 for collection during the screening process.
[0028] Working Principle: The system employs a double-layer sieve structure, consisting of an upper sieve plate 4 and a lower sieve plate 2, with the aperture of the upper sieve plate 4 slightly larger than that of the lower sieve plate 2. This allows for the grading and screening of peanut raw materials, simultaneously removing impurities of different particle sizes. For example, large particles are removed on the upper sieve plate 4, while small particles are removed on the lower sieve plate 2. It also effectively distinguishes plump peanuts from shriveled or moldy particles, improving subsequent oil yield and oil flavor. Furthermore, the fixed mechanism facilitates quick disassembly and replacement of the double-layer sieve plates, simplifying operation, increasing efficiency, and enhancing the equipment's applicability. The design of the fixing mechanism, including a connecting shell 10, screw 11, limiting block 12, moving plate 13, locking block 14, and locking groove 15, allows for quick fixing and disassembly of the double-layer screen plate and the connecting blocks 9 on both sides of the lower screen plate 2. This simplifies the double-layer screen plate replacement process, improves equipment flexibility, and facilitates adaptation to the screening needs of different peanut varieties. A spring 16 connects the moving plate 13 and the connecting shell 10. When the rotating screw 11 moves the limiting block 12 away from the moving plate 13, the rebound force of the spring 16 will cause the moving plate 13 to pull the locking block 14 out of the slot 15, realizing the quick release of the fixing of the connecting block 9. At the same time, it ensures the stability of the locking block 14 during the fixing process, reduces the loosening caused by vibration, and further improves the reliability of the screen plate fixing. Through the elliptical design of the limiting block 12, when the screw 11 is rotated, the limiting block 12 can push the moving plates 13 on both sides to move synchronously, realizing the quick locking and unlocking of the locking block 14, simplifying the operation. The steps improve work efficiency. By setting the limiting rod 17 and the through hole 18, the movement direction of the moving plate 13 is effectively restricted, preventing it from shifting during the fixing process, and further ensuring the accuracy of fixing the double-layer screen plate. The design of the strip groove increases the friction between the hand and the screw 11, making it easier to apply a larger torque when rotating the screw 11, thus making it easier to complete the fixing and disassembly of the double-layer screen plate. The smooth inclined surface opened on the top of the guide block 5 allows the peanut raw material to slide smoothly down the inclined surface to the discharge port 3 for collection during the screening process.
[0029] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.
Claims
1. A raw material screening device for peanut oil production, characterized in that, Includes a housing (1): a lower screen plate (2) is installed inside the housing (1), and an upper screen plate (4) is rotatably connected to the top of the lower screen plate (2) via a rotating shaft. A discharge port (3) is provided on one side of the housing (1). A guide block (5) is fixed inside the housing (1). The guide block (5) is located below the lower screen plate (2). A vibration motor (6) is installed on one side of the housing (1). A transmission rod (7) is fixed to the output end of the vibration motor (6). Fixing frames (8) are provided on both sides of the lower screen plate (2). The other side of the fixing frame (8) is fixed to the transmission rod (7). The aperture of the upper screen plate (4) is slightly larger than the aperture of the lower screen plate (2). Connecting blocks (9) are fixed on both sides of the lower screen plate (2). A fixing mechanism for fixing the connecting blocks (9) is provided on one side of the fixing frame (8).
2. The raw material screening device for peanut oil production according to claim 1, characterized in that: The fixing mechanism includes a connecting shell (10) installed on one side of the fixing frame (8). A screw (11) is threadedly connected to the side wall of the connecting shell (10). A limit block (12) is fixed at one end of the screw (11) inside the connecting shell (10). Two movable plates (13) slide inside the connecting shell (10). The two movable plates (13) are located on both sides of the limit block (12). A locking block (14) is fixed at the top of the movable plate (13). Both ends of the connecting block (9) are provided with locking grooves (15) that match the locking block (14).
3. The raw material screening device for peanut oil production according to claim 2, characterized in that: Springs (16) are fixed on both sides inside the connecting shell (10), and the other end of the springs (16) is fixed to the moving plate (13).
4. The raw material screening device for peanut oil production according to claim 2, characterized in that: The limiting block (12) is elliptical in shape.
5. The raw material screening device for peanut oil production according to claim 2, characterized in that: Limiting rods (17) are fixed on both sides inside the connecting shell (10), and through holes (18) matching the limiting rods (17) are opened on the surface of the moving plate (13).
6. The raw material screening device for peanut oil production according to claim 2, characterized in that: The screw (11) has multiple strip grooves on its surface, and the multiple strip grooves are distributed in a circular pattern.
7. The raw material screening device for peanut oil production according to claim 1, characterized in that: The top of the guide block (5) has a sloping surface, and the sloping surface is smooth.