Pressure monitoring and adjusting device of spiral oil press

Abstract

The utility model relates to the technical field of oil presses, in particular to a pressure monitoring and adjusting device of a spiral oil press, which comprises an assembly seat, the overall shape of the assembly seat is annular, the cross section of the assembly seat is U-shaped, a sliding plate is slidably mounted in the assembly seat, and guide frames are mounted on the periphery of one side of the outside of the sliding plate. The oil pressing device has the advantages that the assembling base and the closing plate serve as a device body and are both installed in the oil pressing cylinder, the closing plate closes the oil pressing cylinder to form the oil pressing space, the section of one side of the assembling base is in a U shape, the sliding plate is installed in the assembling base in a sliding mode, and the guide frames are installed on the periphery of one side of the outer portion of the sliding plate. A pressure sensor is installed in the oil pressing cylinder, an ejector rod is slidably installed on the guide frame, one end of the ejector rod makes contact with the pressure sensor, the other end of the ejector rod makes contact with the sealing plate, and when pressure changes occur in the oil pressing cylinder, the sealing plate moves backwards, the pressure sensor is compressed, and the change of the pressure in the cylinder can be monitored.

Description

Technical Field

[0001] The utility model relates to the technical field of oil presses, in particular to a pressure monitoring and adjusting device for a screw oil press. Background Art

[0002] Power screw pressing is the most widely used method in the world for extracting oil from vegetable oil materials. At present, the structure and principle of the continuous screw oil presses commonly used in various countries in the world are already known. The screw oil press is the most widely used oil pressing machinery in the world today. Its working principle is to drive the screw lead or the root circle diameter to gradually increase by the continuous rotation of the screw press, so that the volume of the pressing chamber space continuously shrinks to generate a pressing effect for oil pressing. The extracted oil flows out from the gaps of the pressing cage, and at the same time, the residue is pressed into a cake shape and discharged from the end of the screw press, thus having the ability to continuously process oil pressing raw materials.

[0003] The process of the screw oil press for oil pressing and extraction is generally divided into three stages: the feeding stage, that is, the pre-pressing stage, the main pressing stage, that is, the oil discharging stage, and the cake forming stage, that is, the heavy pressing and oil draining stage. Among them, the first stage is prone to back pressure, which is not conducive to advancement, that is, forced feeding and pre-pressing forming are required to overcome the "back material" resistance. The main pressing stage is the stage of forming high pressure and discharging a large amount of oil. The material forms a continuous porous and non-loose solid in the pressing chamber, which is conducive to oil discharging. In the cake forming stage, the material forms into tiles to form a complete plastic body and advances as a whole, so a large compression resistance is also generated, mainly axial force. During the whole process of pressing, the pressure in the pressing chamber continuously increases from the feeding stage to the cake forming stage. In the existing screw oil presses, the continuous rotation of the screw extrusion column squeezes and crushes the material to carry out the oil pressing work. The pressure in the oil pressing tank is not adjustable, and it is also difficult to monitor the pressure in the oil pressing tank. Furthermore, it will cause problems such as excessive crushing of some materials and imbalance of the pressure in the oil pressing tank. Based on this, the present application proposes a pressure monitoring and adjusting device for a screw oil press to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a pressure monitoring and adjusting device for a screw oil press.

[0005] The object of the present utility model is achieved through the following technical solutions: A pressure monitoring and adjusting device for a screw oil press, comprising an assembly base. The overall shape of the assembly base is annular, and the cross-sectional shape is U-shaped. A sliding plate is slidably installed inside the assembly base. Guide frames are installed around the outer side of one side of the sliding plate, which are parallel to the central axis of the assembly base. Pressure sensors are installed inside the inner sides of the four guide frames. Push rods are slidably installed inside the four guide frames. One ends of the outer sides of the four push rods are installed with a closing plate, and the other ends of the outer sides are respectively in contact with the four pressure sensors. An assembly frame is installed between the four guide frames. A cross plate is installed on one outer side of the assembly base. A motor is installed at the middle position of the outer side of the cross plate, and a threaded rod is installed at its output end. The threaded rod penetrates the assembly frame, and the two are in threaded cooperation.

[0006] Optionally, a plurality of guide rods arranged in a circumferential array are installed inside the assembly base. Guide holes arranged in a circumferential array are respectively opened at the outer edges of the sliding plate, and are respectively in sliding cooperation with the plurality of guide rods.

[0007] Optionally, installation grooves are respectively opened at the inner sides of the inner walls of the four guide frames, and the four pressure sensors are respectively installed in the four installation grooves.

[0008] Optionally, limiting grooves are respectively opened inside the four guide frames. Limiting plates are respectively installed at one ends of the outer sides of the four push rods, and are respectively in sliding cooperation with the four limiting grooves.

[0009] Optionally, a sealing ring is installed on the outer side of the closing plate.

[0010] The present utility model has the following advantages:

[0011] For this pressure monitoring and adjusting device of the screw oil press, the assembly base and the closing plate are used as the main body of the device. Both are installed in the oil pressing cylinder. The closing plate seals the oil pressing cylinder to form an oil pressing space. The cross-sectional shape on one side of the assembly base is U-shaped, and a sliding plate is slidably installed inside it. Guide frames are installed around the outer side of one side of the sliding plate, and pressure sensors are installed inside them. Push rods are slidably installed on the guide frames. One end is in contact with the pressure sensor, and the other end is in contact with the closing plate. When the pressure in the oil pressing cylinder changes, the closing plate moves backward to compress the pressure sensor, and the change of the pressure in the cylinder can be monitored.

[0012] Among them, a threaded rod driven by a motor to rotate is installed on the outer side of the assembly base, and it is in threaded cooperation with the assembly frame installed on the sliding plate. By rotating the threaded rod, the position of the sliding plate can be adjusted to avoid the situation of cylinder explosion due to excessive pressure in the cylinder, and the purpose of relieving the pressure in the cylinder is achieved. Description of the Drawings

[0013] Figure 1Schematic diagram of the working state of the present utility model;

[0014] Figure 2 First perspective schematic diagram of the overall structure in the present utility model;

[0015] Figure 3 Second perspective schematic diagram of the overall structure in the present utility model;

[0016] Figure 4 In the present utility model Figure 2 Schematic diagram of the internal structure;

[0017] Figure 5 Schematic diagram of the overall structure of the assembly seat in the present utility model;

[0018] Figure 6 Schematic diagram of the overall structure of the sliding plate in the present utility model.

[0019] In the figure: 1 - assembly seat, 2 - pressing oil cylinder, 3 - closing plate, 4 - ejector rod, 5 - pressure sensor, 6 - motor, 7 - threaded rod, 8 - sliding plate, 9 - sealing ring, 10 - assembly frame, 11 - cross plate, 12 - guide rod, 13 - guide frame, 14 - installation groove, 15 - limiting groove, 16 - guide hole. Specific embodiments

[0020] The present utility model will be further described below with reference to the accompanying drawings, but the protection scope of the present utility model is not limited to the following.

[0021] As Figures 1 to 6 shown, a pressure monitoring and adjusting device for a screw oil press includes an assembly seat 1. The overall shape of the assembly seat 1 is annular, and the cross-sectional shape is U-shaped. A sliding plate 8 is slidably installed inside the assembly seat 1. Guide frames 13 are installed on the outer sides of the four sides of the sliding plate 8, which are parallel to the central axis of the assembly seat 1. Pressure sensors 5 are installed on the inner sides of the four guide frames 13. Ejector rods 4 are slidably installed inside the four guide frames 13. One ends of the outer sides of the four ejector rods 4 are installed with a closing plate 3, and the other ends of the outer sides are respectively in contact with the four pressure sensors 5. An assembly frame 10 is installed between the four guide frames 13. A cross plate 11 is installed on one outer side of the assembly seat 1. A motor 6 is installed at the middle position on the outer side of the cross plate 11, and its output end is installed with a threaded rod 7. The threaded rod 7 penetrates through the assembly frame 10, and the two are in threaded cooperation.

[0022] As an alternative technical solution of the present utility model, a plurality of guide rods 12 arranged in a circumferential array are installed inside the assembly base 1. A plurality of guide holes 16 arranged in a circumferential array are respectively formed at the outer edges of the sliding plate 8, and are respectively in sliding fit with the plurality of guide rods 12. The position of the sliding plate 8 can be restricted by the plurality of guide rods 12 to prevent it from shaking or tilting, so that it can only move reciprocally driven by the threaded rod 7.

[0023] As an alternative technical solution of the present utility model, mounting grooves 14 are respectively formed on the inner sides of the inner walls of the four guide frames 13, and the four pressure sensors 5 are respectively installed in the four mounting grooves 14, which is convenient for the installation and disassembly of the pressure sensors 5 and can restrict the positions of the pressure sensors 5.

[0024] As an alternative technical solution of the present utility model, limiting grooves 15 are respectively formed inside the four guide frames 13. Limiting plates are respectively installed at the outer ends of the four ejector rods 4 and are respectively in sliding fit with the four limiting grooves 15, which can restrict the movement of the ejector rods 4 and prevent the ejector rods 4 from shaking.

[0025] As an alternative technical solution of the present utility model, a sealing ring 9 is installed outside the closing plate 3, which can improve the sealing performance between the closing plate 3 and the oil pressing cylinder 2 and prevent leakage.

[0026] In summary, the features, assembly methods, usage processes and functions realized by the various components in the present utility model are as follows: Taking the assembly base 1 and the closing plate 3 as the main body of the device, both are installed in the oil pressing cylinder. The closing plate 3 closes the oil pressing cylinder 2 to form an oil pressing space. The cross-sectional shape on one side of the assembly base 1 is U-shaped, and a sliding plate 8 is slidably installed inside it. Guide frames 13 are installed around the outer side of one side of the sliding plate 8, and pressure sensors 5 are installed inside them. An ejector rod 4 is slidably installed on the guide frame 13, one end of which contacts the pressure sensor 5 and the other end contacts the closing plate 3. When the pressure in the oil pressing cylinder changes, the closing plate 3 moves backward to compress the pressure sensor 5, and the change of the pressure in the cylinder can be monitored. A threaded rod 7 driven by a motor 6 to rotate is installed outside the assembly base 1, and is in threaded fit with the assembly frame 10 installed on the sliding plate 8. By rotating the threaded rod 7, the position of the sliding plate 8 can be adjusted to prevent the cylinder from bursting due to excessive pressure in the cylinder, so as to achieve the purpose of relieving the pressure in the cylinder.

[0027] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A pressure monitoring and regulating device for a screw oil press, characterized in that: The invention comprises an assembly seat (1), wherein the overall shape of the assembly seat (1) is annular and the cross-sectional shape is U-shaped, a sliding plate (8) is slidably installed inside the assembly seat (1), and guide frames (13) are installed around one side of the outside of the sliding plate (8), which are parallel to the central axis of the assembly seat (1), and pressure sensors (5) are installed inside the four guide frames (13), and push rods (4) are slidably installed inside the four guide frames (13), and a closing plate (3) is installed at one end of the outside of the four push rods (4), and the other end of the outside is respectively in contact with four pressure sensors (5), and an assembly frame (10) is installed between the four guide frames (13), and a cross plate (11) is installed on one side of the outside of the assembly seat (1), and a motor (6) is installed at the middle position of the outside of the cross plate (11), and a threaded rod (7) is installed at the output end of the cross plate (11), and the threaded rod (7) passes through the assembly frame (10), and the two are threadedly matched.

2. A screw oil press pressure monitoring and regulating device according to claim 1, characterized in that: A plurality of guide rods (12) in a circumferential array are installed inside the assembly seat (1), and a plurality of guide holes (16) in a circumferential array are opened at the outer edge of the sliding plate (8), which are respectively slidably matched with the plurality of guide rods (12).

3. A screw oil press pressure monitoring and regulating device according to claim 1, characterized in that: The inner sides of the inner walls of the four guide frames (13) are each provided with a mounting groove (14), and the four pressure sensors (5) are respectively mounted in the four mounting grooves (14).

4. A screw oil press pressure monitoring and regulating device according to claim 1, characterized in that: The four guide frames (13) are each provided with a limiting groove (15) inside, and one end of the outside of the four push rods (4) is provided with a limiting plate, which is respectively slidably matched with the four limiting grooves (15).

5. A screw oil press pressure monitoring and regulating device according to claim 1, characterized in that: A sealing ring (9) is installed outside the closing plate (3).

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