Seed oil pressing and refining device

Abstract

The utility model discloses a seed oil pressing and refining device which comprises a collecting barrel body, the top of the collecting barrel body is open, the outer top and the inner top of the collecting barrel body are respectively provided with a driving assembly and a filtering assembly in a combined mode, and the bottom of the driving assembly is coaxially and detachably connected with a material stirring assembly. And the bottom edge of the material stirring assembly is in contact with the top surface of the filtering assembly. The oil collecting barrel has the beneficial effects that firstly, oil liquid falling into the collecting barrel body can be filtered through a filter screen of the filter assembly, so that the purity of the oil product is favorably improved; and meanwhile, the oil liquid and residues collected on the top surface of the filter screen can be stirred in a manner that a driving motor of the driving assembly drives a bottom plate and a flexible scraper of the material stirring assembly to rotate, so that it is ensured that the filter screen can efficiently filter the oil liquid, and the filtering and refining efficiency of the seed oil liquid is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a seed oil pressing auxiliary assembly field, concretely relates to a seed oil pressing device. BACKGROUND

[0002] In the seed oil pressing process, the oil press is used as the equipment for oil pressing and refining. When the oil press is running, the treated oil material enters the cage from the hopper, and the seed oil material embryo is continuously pushed in by the rotation of the screw shaft for pressing. At the same time, the heat generated by friction also meets the heat required for oil pressing process operation, which helps to promote the thermal denaturation of protein in the material embryo, destroys the colloid, increases the plasticity, and also reduces the viscosity of some oil, thereby improving the oil yield of the oil press, and the oil in the material is pressed out, thereby realizing the extraction of oil in the seed oil blank.

[0003] However, the existing seed oil press is designed without suitable filtering means, which causes the pressed oil to be mixed with a large amount of seed oil blank residue, resulting in poor oil purity and affecting the quality of the oil product. INVENTION CONTENTS

[0004] The purpose of the utility model is to solve the above problems by providing a seed oil pressing device. First, the filter screen of the filtering assembly can filter the oil falling into the collecting barrel body, which helps to improve the oil purity. At the same time, the bottom plate and flexible scraper of the stirring assembly driven by the driving motor of the driving assembly can stir the oil and residue collected on the top surface of the filter screen, which helps to ensure that the filter screen can efficiently filter the oil. Details are described below.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a kind of seed oil pressing device, including collecting barrel body, the top of the collecting barrel body is open, and the outer top and inner top of the collecting barrel body are respectively combined with driving assembly and filtering assembly, to filter the oil falling into the collecting barrel body by the filtering assembly;

[0007] The bottom of the driving assembly is coaxially detachably connected with the stirring assembly, and the bottom edge of the stirring assembly contacts the top surface of the filtering assembly, to stir the oil and residue collected on the top surface of the filtering assembly by the driving assembly driving the stirring assembly.

[0008] As preferred, the upper and lower positions of the periphery of the collecting barrel body are respectively fixedly connected with negative pressure suction pipe and liquid discharge pipe along the transverse direction, and the negative pressure suction pipe is lower than the lowest position of the filtering assembly.

[0009] As preferred, the outer ends of the negative pressure suction pipe and the liquid discharge pipe are coaxially provided with pipe joints for connecting with external pipes, and the outer ends of the negative pressure suction pipe and the liquid discharge pipe are coaxially provided with valves for controlling opening and closing.

[0010] As preferred, the driving assembly comprises a wing base and a driving motor, the wing base is horizontally fixed at the rear side of the top of the collecting barrel body, an inverted L-shaped mounting bracket is fixedly installed on the top surface of the wing base, the horizontal part of the top of the L-shaped mounting bracket extends forward above the top of the collecting barrel body, the driving motor is vertically fixed on the front part of the top surface of the L-shaped mounting bracket, and the motor shaft at the bottom end of the driving motor penetrates through the bottom surface of the top of the L-shaped mounting bracket in a vertically sliding fit, and the bottom end of the motor shaft is detachably coaxially provided with the stirring assembly.

[0011] As preferred, the stirring assembly comprises a telescopic rod body and a threaded connecting sleeve, the telescopic part of the telescopic rod body extends downward and is horizontally fixed with a bottom plate through a fixing sleeve, the bottom surface of the bottom plate is vertically fixed with a flexible scraper plate along the horizontal direction, the bottom edge of the flexible scraper plate is in contact with the top surface of the filtering assembly, the top surface of the telescopic rod body is coaxially provided with the threaded connecting sleeve, and the threaded connecting sleeve is coaxially fixed on the bottom end of the motor shaft through a threaded fit.

[0012] As preferred, a plurality of reinforcing ribs are fixedly installed at the corner positions of the L-shaped mounting bracket, the flexible scraper plate is a rectangular long strip style rubber scraper plate, and the horizontal length of the flexible scraper plate is not greater than the inner diameter of the filtering assembly.

[0013] As preferred, the telescopic rod body is a two-section pull-out type telescopic rod with locking screws, and when the bottom edge of the flexible scraper plate is in contact with the top surface of the filtering assembly, the outer extension length of the telescopic part is greater than the vertical dimension of the threaded connecting sleeve.

[0014] As preferred, the filtering assembly comprises a limiting flange and a matching sleeve, the inner top of the collecting barrel body is coaxially fixed with an annular limiting flange, the matching sleeve is coaxially arranged in the inner top of the collecting barrel body, the bottom of the matching sleeve is supported by the top surface of the limiting flange, the matching sleeve is open upward and downward, and the bottom end of the matching sleeve is coaxially and fixedly provided with a filter screen for filtering oil residue.

[0015] As preferred, the outer periphery of the matching sleeve is coaxially and threadedly fitted with the inner periphery of the collecting barrel body, and a plurality of holding rods as force applying positions are vertically and fixedly arranged on the top end of the matching sleeve, and the filter screen is a fine metal screen.

[0016] The seed oil refining device is used for seed oil refining, and oil liquid flowing out of the oil pressing equipment falls from the top front of the collecting barrel body to the filter screen top surface of the filter assembly. The outer top and inner top of the collecting barrel body are respectively combined with the driving assembly and the filter assembly. The bottom of the driving assembly is coaxially detachably connected with the stirring assembly. The bottom edge of the flexible scraper of the stirring assembly contacts the filter screen top surface of the filter assembly. The oil liquid falling into the collecting barrel body is first filtered by the filter screen of the filter assembly, which helps to improve the purity of the oil product. During the filtering process, the valve of the discharge pipe is closed. Then, the negative pressure suction pipe is connected with the external negative pressure suction pipeline through the pipe joint. The valve of the negative pressure suction pipe is opened. The filtering speed of the oil liquid is accelerated through negative pressure suction. The bottom plate and the flexible scraper of the stirring assembly are driven to rotate by the driving motor of the driving assembly. The oil liquid and residues collected on the filter screen top surface are stirred. The filter screen can efficiently filter the oil liquid, which improves the filtering and refining efficiency of the seed oil. The stirring assembly is detachably combined with the bottom end of the motor shaft through the coaxial thread cooperation between the threaded connection sleeve of the stirring assembly and the bottom end of the motor shaft. The flexible scraper is lifted by the contraction of the telescopic rod body. The stirring assembly can be detached from the bottom end of the motor shaft by twisting the threaded connection sleeve away from the motor shaft. The combination and disassembly of the stirring assembly at the bottom end of the motor shaft are simple and easy to implement. The stirring assembly can be quickly combined with the bottom end of the motor shaft for oil stirring. The stirring assembly can be easily detached from the bottom end of the motor shaft for cleaning and maintenance. The filter assembly is detachably combined with the inner top of the collecting barrel body through the coaxial thread cooperation between the outer periphery of the matching sleeve and the inner periphery of the collecting barrel body and the bottom end of the matching sleeve supported by the limiting flange. The filter assembly can be easily combined with the inner top of the collecting barrel body. The filter assembly can be easily lifted and detached from the inner top of the collecting barrel body by twisting the matching sleeve with the holding rod as the force application position. The combination and disassembly of the filter assembly at the inner top of the collecting barrel body are simple and easy to implement. The filter assembly can be quickly combined with the inner top of the collecting barrel body for oil filtering. The filter assembly can be easily detached from the inner top of the collecting barrel body for residue cleaning.

[0017] The beneficial effects are: 1, the utility model discloses a driving assembly and filter assembly are set up respectively on the outer top and inner top of the collection barrel body, the bottom of the driving assembly is coaxially detachably connected with a stirring assembly, the bottom edge of the flexible scraper of the stirring assembly contacts the top surface of the filter screen of the filter assembly, the oil liquid falling into the collection barrel body is filtered by the filter screen of the filter assembly first, which is beneficial to improve the oil purity, and the bottom plate and the flexible scraper of the stirring assembly are driven by the driving motor of the driving assembly to rotate, which can stir the oil liquid and residue collected on the top surface of the filter screen, which is beneficial to ensure that the filter screen can efficiently filter the oil liquid and improve the filtering and refining efficiency of the oil liquid.

[0018] 2, the bottom end of the motor shaft is coaxially screwed with the threaded connecting sleeve of the stirring assembly, the stirring assembly can be detachably combined with the bottom end of the motor shaft, the flexible scraper is lifted by retracting the telescopic rod body, and then the stirring assembly can be detached from the bottom end of the motor shaft by screwing the threaded connecting sleeve away from the motor shaft, so that the combination and disassembly of the stirring assembly at the bottom end of the motor shaft are simple and easy to realize, which is convenient for quickly combining the stirring assembly with the bottom end of the motor shaft for oil stirring and convenient for cleaning and maintaining the stirring assembly after being detached from the bottom end of the motor shaft.

[0019] 3, the filter assembly is detachably combined with the inner top of the collection barrel body by the coaxial screwing of the outer periphery of the matching sleeve and the inner periphery of the collection barrel body and the supporting of the bottom end of the matching sleeve by the limiting flange, and the filter assembly can be lifted and detached from the inner top of the collection barrel body by only holding the rod as a force application position and screwing the matching sleeve, so that the combination and disassembly of the filter assembly at the inner top of the collection barrel body are simple and easy to realize, which is convenient for quickly combining the filter assembly with the inner top of the collection barrel body for oil filtering, and convenient for cleaning the residue after the filter assembly is detached from the inner top of the collection barrel body. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0021] Figure 1 is the overall isometric view of the present application;

[0022] Figure 2 is the sectional view of the present application Figure 1 ; Figure 1

[0023] ​Figure 3 is the A place partial enlarged view of the utility model Figure 2

[0024] Figure 4 is the cross section schematic view of the utility model Figure 1 Figure 2 ;

[0025] Figure 5 is the front view schematic view of the utility model Figure 1

[0026] Figure 6 is the left view schematic view of the utility model Figure 1

[0027] Figure 7 is the top view schematic view of the utility model Figure 1

[0028] The figure mark explanation is as follows:

[0029] 1, drive assembly;101, L type mounting bracket;102, reinforcing rib plate;103, drive motor;104, wing seat;105, motor shaft;2, collection bucket body;201, negative pressure suction pipe;202, pipe joint;203, valve;204, discharge pipe;3, stirring assembly;301, telescopic rod body;302, locking screw;303, telescopic part;304, fixed sleeve;305, bottom plate;306, flexible scraper;307, threaded connection sleeve;4, filter assembly;401, holding rod;402, cooperation sleeve;403, limiting flange;404, filter screen. Specific implementation

[0030] In order to make the purpose, technical scheme and advantage of the utility model more clear, the technical scheme of the utility model will be described in detail below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other implementation manners obtained by the ordinary skill in the art without making the creative labor belong to the range of the utility model.

[0031] See Figures 1-7 ​​​​​The utility model provides a kind of seed oil pressing refining device, including collection barrel body 2, the top of collection barrel body 2 is open, the outer top and inner top of collection barrel body 2 are combined with drive assembly 1 and filter assembly 4 are set respectively, specifically, drive assembly 1 includes wing seat 104 and drive motor 103, the rear side of the outer top of collection barrel body 2 is fixed with wing seat 104 and extends horizontally, the top surface of wing seat 104 is fixedly installed with inverted L-shaped mounting bracket 101, and the horizontal portion of L-shaped mounting bracket 101 top extends to the top of collection barrel body 2 above, the top surface of L-shaped mounting bracket 101 is vertically fixed with drive motor 103, and the motor shaft 105 of drive motor 103 bottom end passes through the bottom surface of L-shaped mounting bracket 101 top in vertical sliding fit, the bottom end of motor shaft 105 is detachably coaxially installed with material stirring assembly 3, the purpose of this arrangement is that the bottom plate 305 and flexible scraper 306 of material stirring assembly 3 can be driven by drive motor 103 of drive assembly 1 in the form of rotation, and the oil and residue collected on the top surface of filter screen 404 can be stirred, which helps to ensure that filter screen 404 can efficiently filter oil.

[0032] Referring to Figures 1-4 As shown, filter assembly 4 includes limiting flange 403 and matching sleeve 402, annular limiting flange 403 is coaxially fixed on the inner top of collection barrel body 2, matching sleeve 402 is coaxially arranged in the inner top of collection barrel body 2, and the bottom of matching sleeve 402 is supported by the top surface of limiting flange 403, the top and bottom of matching sleeve 402 are open, and the bottom end of matching sleeve 402 is coaxially and fixedly provided with filter screen 404 for filtering oil residue, the periphery of matching sleeve 402 is coaxially and threadedly matched with the inner periphery of collection barrel body 2, in this way, first, filter assembly 4 is used to filter the oil falling into collection barrel body 2, and at the same time, filter assembly 4 can be detachably combined with the inner top of collection barrel body 2 by the coaxial thread matching of the periphery of matching sleeve 402 with the inner periphery of collection barrel body 2 and the supporting of the bottom end of matching sleeve 402 by limiting flange 403, and filter assembly 4 can be lifted and separated from the inner top of collection barrel body 2 by screwing matching sleeve 402, and the combination and disassembly of filter assembly 4 in the inner top of collection barrel body 2 is simple and easy to implement.

[0033] Referring to Figures 1-4As shown, the bottom of the driving assembly 1 is coaxially detachably connected with the stirring assembly 3, and the bottom edge of the stirring assembly 3 contacts the top surface of the filtering assembly 4. Specifically, the stirring assembly 3 comprises a telescopic rod body 301 and a threaded connecting sleeve 307. The telescopic part 303 of the telescopic rod body 301 extends downward and is fixed with a bottom plate 305 along the transverse direction by a fixing sleeve 304. The bottom surface of the bottom plate 305 is vertically fixed with a flexible scraper 306 along the transverse direction, and the bottom edge of the flexible scraper 306 contacts the top surface of the filtering assembly 4. The top surface of the telescopic rod body 301 is coaxially fixed with the threaded connecting sleeve 307, which is coaxially fixed at the bottom end of the motor shaft 105 by means of threaded cooperation, so as to drive the stirring assembly 3 to rotate by the driving assembly 1, thereby stirring the oil and residues collected on the top surface of the filtering assembly 4. In addition, the threaded connecting sleeve 307 of the stirring assembly 3 is coaxially and threadedly connected with the bottom end of the motor shaft 105, so that the stirring assembly 3 can be detachably combined with the bottom end of the motor shaft 105. After the telescopic part 303 of the telescopic rod body 301 is retracted to lift the flexible scraper 306, the stirring assembly 3 can be easily detached from the bottom end of the motor shaft 105 by unscrewing the threaded connecting sleeve 307 from the motor shaft 105.

[0034] Referring to Figures 1-7As shown, the collecting barrel body 2, the driving assembly 1, the stirring assembly 3 and the filtering assembly 4 are respectively optimized as follows. Specifically, the upper and lower positions of the periphery of the collecting barrel body 2 are respectively fixedly connected with a negative pressure suction pipe 201 and a liquid discharge pipe in the transverse direction, and the negative pressure suction pipe 201 is lower than the lowest position of the filtering assembly 4. The outer ends of the negative pressure suction pipe 201 and the liquid discharge pipe are coaxially provided with pipe joints 202 for connecting with external pipelines. The outer ends of the negative pressure suction pipe 201 and the liquid discharge pipe are coaxially provided with valves 203 for controlling the opening and closing. In this way, during the filtering process, the valve 203 of the liquid discharge pipe 204 can be closed, and then the valve 203 of the negative pressure suction pipe 201 is opened after being connected with the external negative pressure suction pipe 201 through the pipe joint 202, so as to accelerate the filtering speed of the oil by negative pressure suction. Meanwhile, the corner positions of the L-shaped mounting bracket 101 are fixedly provided with a plurality of reinforcing ribs 102, so as to enhance the overall stability of the L-shaped mounting bracket 101. The flexible scraper 306 is a rectangular long strip rubber scraper, and the transverse length of the flexible scraper 306 is not greater than the inner diameter of the filtering assembly 4. Specifically, the transverse length of the flexible scraper 306 is slightly smaller than the inner diameter of the sleeve 402, so as to have a stirring width meeting the use requirements. Further, the telescopic rod body 301 is a double-section telescopic rod with a locking screw 302, and when the bottom edge of the flexible scraper 306 contacts the top surface of the filtering assembly 4, the outer extension length of the telescopic part 303 is greater than the vertical dimension of the threaded connecting sleeve 307. In this way, the flexible scraper 306 can be lifted to a sufficient height, so as to be separated from the bottom end of the motor shaft 105 by screwing. The top end surface of the sleeve 402 is vertically fixed with a plurality of holding rods 401 as force positions. The filter screen 404 is a fine metal screen. In this way, the sleeve 402 can be easily screwed by the holding rods 401 as force positions, and the filter screen 404 can meet the design use requirements.

[0035] With the above structure, in the use of seed oil expelling and refining, the oil liquid flowing out of the expelling equipment falls from the upper front of the collecting barrel body 2 to the top surface of the filter screen 404 of the filtering assembly 4, and since the outer top and inner top of the collecting barrel body 2 are respectively combined with the driving assembly 1 and the filtering assembly 4, the bottom of the driving assembly 1 is coaxially detachably connected with the stirring assembly 3, and the bottom edge of the flexible scraper 306 of the stirring assembly 3 contacts the top surface of the filter screen 404 of the filtering assembly 4, and then the oil liquid falling into the collecting barrel body 2 is first filtered by the filter screen 404 of the filtering assembly 4, which is beneficial to improve the purity of the oil product. During the filtering process, the valve 203 of the discharge pipe 204 can be closed, and then the negative pressure suction pipe 201 is connected with the external negative pressure suction pipe 201 through the pipe joint 202, and the valve 203 of the negative pressure suction pipe 201 is opened, so that the filtering speed of the oil liquid is accelerated by negative pressure suction, and the bottom plate 305 and the flexible scraper 306 of the stirring assembly 3 are driven to rotate by the driving motor 103 of the driving assembly 1, so as to stir the oil liquid and residues collected on the top surface of the filter screen 404, which is beneficial to ensure that the filter screen 404 can efficiently filter the oil liquid and improve the filtering and refining efficiency of the seed oil liquid. Since the stirring assembly 3 is coaxially and threadedly connected with the bottom end of the motor shaft 105 of the driving assembly 1, the stirring assembly 3 can be detachably combined with the bottom end of the motor shaft 105, and after the flexible scraper 306 is lifted by the contraction of the telescopic rod body 301, the stirring assembly 3 can be detached from the bottom end of the motor shaft 105 by twisting the threaded connection sleeve 307 away from the motor shaft 105. The combination and disassembly of the stirring assembly 3 at the bottom end of the motor shaft 105 is simple and easy to realize, which is convenient for quickly combining the stirring assembly 3 with the bottom end of the motor shaft 105 for stirring the oil liquid, and convenient for cleaning and maintaining the stirring assembly 3 after being detached from the bottom end of the motor shaft 105. Since the outer periphery of the matching sleeve 402 is coaxially and threadedly connected with the inner periphery of the collecting barrel body 2, and the limiting flange 403 supports the bottom end of the matching sleeve 402, the filtering assembly 4 can be detachably combined with the inner top of the collecting barrel body 2, and the filtering assembly 4 can be lifted and detached from the inner top of the collecting barrel body 2 by twisting the matching sleeve 402 with the holding rod 401 as the force application position. The combination and disassembly of the filtering assembly 4 at the inner top of the collecting barrel body 2 is simple and easy to realize, which is convenient for quickly combining the filtering assembly 4 with the inner top of the collecting barrel body 2 for filtering the oil liquid, and convenient for cleaning the residues after the filtering assembly 4 is detached from the inner top of the collecting barrel body 2.

[0036] The above merely describes a specific implementation of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A seed oil expeller refining device comprising a collecting barrel body (2), characterized in that: The top of the collecting barrel body (2) is open, and the outer top and inner top of the collecting barrel body (2) are respectively combined with a driving assembly (1) and a filtering assembly (4) so as to filter the oil falling into the collecting barrel body (2) through the filtering assembly (4); The bottom of the driving assembly (1) is coaxially detachably connected with a stirring assembly (3), and the bottom edge of the stirring assembly (3) contacts the top surface of the filtering assembly (4), so that the oil and residues collected on the top surface of the filtering assembly (4) are stirred by the driving assembly (1) driving the stirring assembly (3) to rotate.

2. A seed expeller oil refining unit as claimed in claim 1, wherein: The upper and lower positions of the outer side of the collecting barrel body (2) are respectively fixedly connected with a negative pressure suction pipe (201) and a liquid discharge pipe in the transverse direction, and the negative pressure suction pipe (201) is lower than the lowest position of the filtering assembly (4).

3. A seed expeller oil refining apparatus as claimed in claim 2, wherein: The outer ends of the negative pressure suction pipe (201) and the liquid discharge pipe are coaxially provided with pipe joints (202) for facilitating connection with external pipelines, and the outer ends of the negative pressure suction pipe (201) and the liquid discharge pipe are coaxially combined with valves (203) for controlling opening and closing.

4. A seed expeller oil refining apparatus as claimed in claim 3, wherein: The driving assembly (1) comprises a wing seat (104) and a driving motor (103), and the rear side of the outer top of the collecting barrel body (2) is horizontally extended and fixed with the wing seat (104), the top surface of the wing seat (104) is fixedly provided with an inverted L-shaped mounting bracket (101), the horizontal part of the top of the L-shaped mounting bracket (101) extends forward above the top of the collecting barrel body (2), the top front part of the L-shaped mounting bracket (101) is vertically fixed with the driving motor (103), and the motor shaft (105) at the bottom end of the driving motor (103) passes through the top bottom surface of the L-shaped mounting bracket (101) in a vertically sliding fit manner, and the bottom end of the motor shaft (105) is detachably coaxially provided with the stirring assembly (3).

5. A seed expeller oil refining apparatus as claimed in claim 4, wherein: The stirring assembly (3) comprises a telescopic rod body (301) and a threaded connection sleeve (307), the telescopic part (303) of the telescopic rod body (301) extends downward and is horizontally fixed with a bottom plate (305) through a fixed sleeve (304) at the bottom surface, the bottom surface of the bottom plate (305) is vertically fixed with a flexible scraper (306) in the transverse direction, the bottom edge of the flexible scraper (306) contacts the top surface of the filtering assembly (4), the top surface of the telescopic rod body (301) is coaxially fixed with the threaded connection sleeve (307), and the threaded connection sleeve (307) is coaxially fixed at the bottom end of the motor shaft (105) through a threaded fit manner.

6. A seed oil expeller refining unit as claimed in claim 5, wherein: A plurality of reinforcing ribs (102) are fixedly installed at the corner positions of the L-shaped mounting bracket (101), the flexible scraper (306) is a rectangular long strip type rubber scraper, and the transverse length of the flexible scraper (306) is not greater than the inner diameter of the filtering assembly (4).

7. A seed expeller oil refining apparatus as claimed in claim 6, wherein: The telescopic rod body (301) is a two-section telescopic rod with locking screw (302), and the outer length of the telescopic part (303) is greater than the vertical size of the threaded connecting sleeve (307) when the bottom edge of the flexible scraper (306) contacts the top surface of the filter assembly (4).

8. A seed oil expelling and refining apparatus as claimed in any one of claims 5 to 7, characterized in that: The filter assembly (4) comprises a limiting flange (403) and a matching sleeve (402), the inner top of the collecting barrel body (2) is coaxially fixed with an annular limiting flange (403), the matching sleeve (402) is coaxially arranged in the inner periphery of the inner top of the collecting barrel body (2), the bottom of the matching sleeve (402) is supported by the top surface of the limiting flange (403), the matching sleeve (402) is open upward and downward, and the bottom end of the matching sleeve (402) is coaxially and fixedly provided with a filter screen (404) for filtering oil residue.

9. A seed oil expeller refining unit as claimed in claim 8, wherein: The periphery of the matching sleeve (402) is coaxially and threadedly matched with the inner periphery of the collecting barrel body (2), and the top end surface of the matching sleeve (402) is vertically and fixedly provided with a plurality of holding rods (401) as force applying positions, and the filter screen (404) is a fine metal screen.

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